1. Basic overview of PE coated paperPE coated paper is to coat a layer of polyethylene (PE) film on the surface of paper to improve the waterproof, moisture-proof and tear-resistant properties of paper. This material is widely used in food packaging, electronic product packaging, advertising and other fields, and is favored for its excellent physical properties and environmental protection characteristics. In the traditional PE coated paper production process, the selection and use of adhesives often have a certain impact on the environment. The innovative application of environmentally friendly adhesives has become an important topic in the production process of PE coated paper. 2. Innovative application of environmentally friendly adhesives1. Water-based adhesivesWater-based adhesives are adhesives that use water as a solvent or dispersion medium. They are non-toxic, odorless, non-flammable, easy to clean, etc., and meet the current environmental protection requirements. In the production of PE coated paper, water-based adhesives can be evenly and stably coated on the surface of paper, forming a good bonding effect with PE film. Compared with traditional organic solvent adhesives, the use of water-based adhesives can significantly reduce the emission of volatile organic compounds (VOCs) and reduce pollution to air and water resources. 2. Plant-based adhesivesPlant-based adhesives are an environmentally friendly adhesive made from natural plants through biochemical processes. It is not only renewable and degradable, but also provides excellent bonding properties. In the production of PE coated paper, the application of plant-based adhesives can not only reduce dependence on petroleum resources, but also reduce carbon emissions in the production process. Plant-based adhesives also have good biocompatibility, are harmless to the human body and the environment, and are in line with the green and healthy production concept. 3. Biodegradable adhesivesBiodegradable adhesives are adhesives that can be completely decomposed by microorganisms under natural conditions. In the production of PE coated paper, the application of biodegradable adhesives can solve the problem that traditional adhesives are difficult to degrade and reduce the long-term burden of waste on the environment. With the continuous development of biodegradable technology, the performance of biodegradable adhesives has been continuously improved, and its application prospects in the production of PE coated paper are becoming increasingly broad. 3. Other innovations in the production process of PE coated paperIn addition to the innovative application of environmentally friendly adhesives, the production process of PE coated paper also involves innovations in many aspects, which jointly promote the green transformation of the industry. 1. Improvement of coating technologyCoating technology is a key link in the production of PE coated paper. In recent years, with the continuous improvement and innovation of coating technology, such as the application of slit extrusion coating, micro-concave roller coating, and blade coating, PE coating can be more evenly and accurately coated on the surface of paper. These technological improvements not only improve the quality and performance of the products, but also reduce energy consumption and waste emissions in the production process. 2. Introduction of automated and intelligent production linesWith the continuous development of automation and intelligent technology, the production line of PE coated paper has also achieved a high degree of automation and intelligence. These production lines can accurately control key parameters such as coating amount, coating thickness, and paper speed to ensure the stability and consistency of product quality. The introduction of automated and intelligent production lines also reduces labor costs, improves production efficiency, and makes the production of PE coated paper more efficient and environmentally friendly. 3. Optimal selection of raw materialsIn the production of PE coated paper, the selection of raw materials is crucial to the quality and performance of the product. In recent years, some companies have begun to use high-quality PE resins and environmentally friendly additives as raw materials to improve the waterproofness, tear resistance and environmental performance of the products. Through the optimization of the proportion and fine processing of raw materials, the production cost can be further reduced and the market competitiveness of the products can be improved. 4. The significance of environmentally friendly adhesives to the PE coated paper industryThe application of environmentally friendly adhesives in the production of PE coated paper not only meets the current global urgent need for environmental protection, but also promotes the green transformation and sustainable development of the industry. By using environmentally friendly adhesives, the PE coated paper industry can reduce pollution to the environment, reduce energy consumption and waste emissions in the production process, and improve the utilization efficiency of resources. The application of environmentally friendly adhesives can also improve the quality and performance of products, enhance the market competitiveness of products, and bring greater economic and social benefits to enterprises.

1. High strength: a solid line of defense against external impactsKraft Paperboard's high strength is mainly due to its unique fiber structure and manufacturing process. Kraft paperboard is mainly made of long-fiber softwood pulp or hardwood pulp, which are tightly combined through a fine papermaking process to form a strong fiber network. This structure gives Kraft paperboard excellent tensile and compressive strength, allowing it to withstand large external forces without easily deforming or breaking. In extreme climatic conditions, such as strong winds, heavy rains, hail and other natural disasters, packaging materials often face severe tests. High-strength kraft paperboard can effectively resist these external impacts. In strong winds, packaging boxes may be violently shaken and squeezed, but the high-strength structure of kraft paperboard can maintain its integrity and prevent internal items from being damaged due to packaging ruptures. Similarly, in heavy rain or hail weather, kraft paperboard can withstand the impact of water droplets or hail, avoiding damage to the packaging surface, thereby protecting internal items from moisture or physical damage. The high strength of kraft paperboard is also reflected in its load-bearing capacity. During logistics transportation, packaging boxes often need to be stacked to save space. High-strength kraft paperboard can withstand greater stacking pressure, ensuring that the packaging boxes will not deform or collapse due to excessive load during stacking, thereby protecting the safety of internal items. 2. Tear resistance: a key feature to prevent packaging damageTear resistance is another crucial feature of kraft paperboard. It refers to the ability of paperboard to remain intact and not easily broken when torn by external force. This feature is crucial for packaging materials because it is directly related to the protective effect of packaging during transportation and storage. Under extreme climatic conditions, packaging materials may become more fragile due to factors such as moisture, temperature changes or mechanical stress. At this time, tear resistance is particularly important. The tear resistance of kraft paperboard is mainly due to the close bonding between its fibers and the toughness of the fibers themselves. When the packaging is subjected to tearing force, these tightly bonded fibers can jointly withstand the external force to prevent the paperboard from breaking. The toughness of the fiber can also absorb part of the tearing energy, further enhancing the tear resistance of the paperboard. The importance of tear resistance is self-evident when dealing with extreme climates. In extreme weather such as hurricanes or typhoons, packaging materials may be torn by strong winds. If the packaging material does not have sufficient tear resistance, it will be easily torn, causing the internal items to be exposed and damaged. Kraft paperboard, with its excellent tear resistance, can maintain the integrity of the packaging under such extreme conditions and ensure the safety of the internal items. 3. The combined role of high strength and tear resistance in dealing with extreme climatesAs the two core characteristics of kraft paperboard, high strength and tear resistance play a vital role in dealing with extreme climates. Together, they form a solid line of defense for packaging materials, which can resist external impacts and prevent packaging damage, thereby protecting the internal items from damage. Under extreme climatic conditions, such as natural disasters such as heavy rains, floods, and hurricanes, packaging materials often face multiple challenges. High-strength kraft paperboard can withstand large external impacts and stacking pressure to ensure the integrity of the packaging; while tear resistance can prevent the packaging from breaking when subjected to tearing force, further protecting the safety of the internal items. These two characteristics complement each other and jointly enhance the protective effect of kraft paperboard under extreme climatic conditions. The high strength and tear resistance of kraft paperboard also bring it a wider range of application prospects. In the fields of e-commerce, cold chain logistics, military packaging, etc., these characteristics make kraft paperboard an ideal choice of packaging material. They can not only meet the basic needs of packaging, but also provide additional protection under extreme climatic conditions to ensure the safe delivery of the packaged items.

1. High strength: a solid line of defense against external impactsKraft Paperboard's high strength is mainly due to its unique fiber structure and manufacturing process. Kraft paperboard is mainly made of long-fiber softwood pulp or hardwood pulp, which are tightly combined through a fine papermaking process to form a strong fiber network. This structure gives Kraft paperboard excellent tensile and compressive strength, allowing it to withstand large external forces without easily deforming or breaking. In extreme climatic conditions, such as strong winds, heavy rains, hail and other natural disasters, packaging materials often face severe tests. High-strength kraft paperboard can effectively resist these external impacts. In strong winds, packaging boxes may be violently shaken and squeezed, but the high-strength structure of kraft paperboard can maintain its integrity and prevent internal items from being damaged due to packaging ruptures. Similarly, in heavy rain or hail weather, kraft paperboard can withstand the impact of water droplets or hail, avoiding damage to the packaging surface, thereby protecting internal items from moisture or physical damage. The high strength of kraft paperboard is also reflected in its load-bearing capacity. During logistics transportation, packaging boxes often need to be stacked to save space. High-strength kraft paperboard can withstand greater stacking pressure, ensuring that the packaging boxes will not deform or collapse due to excessive load during stacking, thereby protecting the safety of internal items. 2. Tear resistance: a key feature to prevent packaging damageTear resistance is another crucial feature of kraft paperboard. It refers to the ability of paperboard to remain intact and not easily broken when torn by external force. This feature is crucial for packaging materials because it is directly related to the protective effect of packaging during transportation and storage. Under extreme climatic conditions, packaging materials may become more fragile due to factors such as moisture, temperature changes or mechanical stress. At this time, tear resistance is particularly important. The tear resistance of kraft paperboard is mainly due to the close bonding between its fibers and the toughness of the fibers themselves. When the packaging is subjected to tearing force, these tightly bonded fibers can jointly withstand the external force to prevent the paperboard from breaking. The toughness of the fiber can also absorb part of the tearing energy, further enhancing the tear resistance of the paperboard. The importance of tear resistance is self-evident when dealing with extreme climates. In extreme weather such as hurricanes or typhoons, packaging materials may be torn by strong winds. If the packaging material does not have sufficient tear resistance, it will be easily torn, causing the internal items to be exposed and damaged. Kraft paperboard, with its excellent tear resistance, can maintain the integrity of the packaging under such extreme conditions and ensure the safety of the internal items. 3. The combined role of high strength and tear resistance in dealing with extreme climatesAs the two core characteristics of kraft paperboard, high strength and tear resistance play a vital role in dealing with extreme climates. Together, they form a solid line of defense for packaging materials, which can resist external impacts and prevent packaging damage, thereby protecting the internal items from damage. Under extreme climatic conditions, such as natural disasters such as heavy rains, floods, and hurricanes, packaging materials often face multiple challenges. High-strength kraft paperboard can withstand large external impacts and stacking pressure to ensure the integrity of the packaging; while tear resistance can prevent the packaging from breaking when subjected to tearing force, further protecting the safety of the internal items. These two characteristics complement each other and jointly enhance the protective effect of kraft paperboard under extreme climatic conditions. The high strength and tear resistance of kraft paperboard also bring it a wider range of application prospects. In the fields of e-commerce, cold chain logistics, military packaging, etc., these characteristics make kraft paperboard an ideal choice of packaging material. They can not only meet the basic needs of packaging, but also provide additional protection under extreme climatic conditions to ensure the safe delivery of the packaged items.

1. Background of environmental awarenessThe improvement of environmental awareness is a global phenomenon, driven by multiple factors. First, the increasingly severe global climate change problem and the frequent occurrence of extreme weather events have made people begin to pay attention to reducing greenhouse gas emissions and turning to a low-carbon lifestyle. Secondly, with the deepening of scientific research, the harm of plastic pollution to marine life, soil and human health has gradually surfaced, causing widespread public concern about the use of plastics. Furthermore, the limited resources and the concept of sustainable development have gradually been accepted, prompting people to look for alternative materials with less impact on the environment. 2. Environmental advantages of PE Coated PaperAs a composite material that combines the degradability of paper and the barrier properties of polyethylene (PE) film, PE coated paper has significant advantages in environmental protection. First of all, compared with traditional plastic packaging materials, PE coated paper generates relatively less environmental pollution during production and use. Although PE itself is not completely degradable, it is easier to recycle with paper than plastic film, reducing the long-term pollution of plastic waste to the environment. Secondly, the base material of PE coated paper is paper, which comes from renewable resources - trees, which is in line with the concept of sustainable development. Of course, the premise is that the felling of these trees follows the principles of sustainable forestry management to ensure the regeneration of forest resources and ecological balance. 3. The impact of increased environmental awareness on the market demand for PE Coated PaperConsumer preference changes: With the popularization of environmental education and the enhancement of consumer environmental awareness, more and more consumers tend to choose environmentally friendly packaging products. PE coated paper has become the preferred packaging material for many brands and consumers due to its environmental characteristics. This change in consumer preference has directly promoted the growth of PE coated paper market demand.Driven by policies and regulations: In order to cope with environmental pollution problems, governments have introduced a series of environmental regulations to restrict or prohibit the use of disposable plastic products and encourage the use of more environmentally friendly packaging materials. The EU's "Plastic Strategy" plans to reduce plastic waste to a minimum by 2030 and promote a circular economy; China has also implemented a "plastic restriction order" to restrict the production and use of ultra-thin plastic bags. These policies and regulations provide a broad market space for environmentally friendly packaging materials such as PE coated paper.Promotion of corporate social responsibility: With the improvement of environmental awareness, enterprises pay more and more attention to fulfilling their social responsibilities, and show their environmental image by adopting environmentally friendly materials and reducing packaging waste. PE coated paper, as one of the representatives of environmentally friendly packaging materials, has become an important means for enterprises to achieve green packaging and enhance their brand image. 4. Innovation and development of PE Coated Paper under the trend of environmental protectionFacing the growing demand for environmental protection and market competition, the PE coated paper industry is also constantly innovating technology and developing products. On the one hand, by improving the coating process and formula, the barrier, water resistance and degradability of PE coated paper are improved to make it more in line with environmental protection requirements. On the other hand, new environmentally friendly PE materials are developed, such as bio-based PE and degradable PE, to further reduce the impact of PE coated paper on the environment. Combined with digital printing, intelligent packaging and other technologies, the added value and market competitiveness of PE coated paper are enhanced. 5. Challenges and coping strategiesAlthough PE coated paper shows great development potential under the trend of environmental protection, it still faces some challenges. The imperfection of the recycling system limits its recycling rate; the high cost of new environmentally friendly materials such as bio-based PE and degradable PE affects its market promotion. In order to meet these challenges, the government, enterprises and consumers need to work together. The government should introduce more policies to support environmentally friendly packaging materials and improve the recycling system; enterprises should increase investment in research and development, reduce costs and improve product quality; consumers should enhance environmental awareness and actively participate in recycling activities to jointly promote the widespread use of environmentally friendly packaging materials such as PE coated paper.

1. Control of pulp preparationPulp preparation is the first step in large rolls paper production and is also the basic link that affects paper quality. In the process of pulp preparation, the following key parameters need to be strictly controlled:Fiber decomposition: The degree of fiber decomposition directly affects the uniformity of pulp and the strength of paper. In order to ensure that the fibers are fully decompressed, appropriate decomposition equipment and process conditions need to be adopted, such as using efficient decomposition machines, controlling decomposition time and temperature, etc.Control of beating degree: The beating degree refers to the degree to which pulp fibers are cut, swollen, fibrillated, and dispersed. Too high or too low beating will affect the quality of paper. If the beating degree is too high, the fibers are too short and the strength of paper is reduced; if the beating degree is too low, the fibers are not fully interwoven and the uniformity of paper is poor. The beating degree needs to be accurately controlled according to the purpose and quality requirements of paper.Pulping uniformity: Pulping is the process of mixing different types of pulp in a certain proportion. The uniformity of pulping directly affects the uniformity and strength of paper. In order to ensure uniform pulping, advanced pulping equipment and processes are required, such as using an automated pulping system, controlling the pulping ratio and stirring time, etc. 2. Control of paper formingPaper forming is the process of dehydrating and interweaving pulp on a forming net to form paper. During the paper forming process, the following key parameters need to be strictly controlled: Tension of the forming net: The tension of the forming net affects the thickness uniformity and surface flatness of the paper. If the tension is too large, the paper is easy to break; if the tension is too small, the paper is easy to wrinkle. The tension of the forming net needs to be accurately adjusted according to the paper quality and equipment requirements.Height of the forming box: The height of the forming box determines the dehydration speed of the pulp on the forming net and the thickness of the paper. If the height of the forming box is too high, the paper is not fully dehydrated and the thickness is uneven; if the height of the forming box is too low, the paper is dehydrated too quickly and cracks are easy to occur. The height of the forming box needs to be reasonably set according to the purpose of the paper and the equipment conditions.Moisture content of paper: The moisture content of paper is one of the key factors affecting the flatness and strength of paper. During the paper forming process, the moisture content of the paper needs to be controlled within an appropriate range to ensure the stability and quality of the paper. This is usually achieved by adjusting the running speed of the forming network, the pressure and temperature of the dewatering equipment and other parameters. 3. Control of paper pressingThe pressing process is a key step to remove excess water from the paper and improve the compactness and strength of the paper. During the pressing process, the following key parameters need to be strictly controlled:Pressing pressure: The size of the pressing pressure directly affects the compactness and moisture removal efficiency of the paper. If the pressing pressure is too large, the paper is easily crushed; if the pressing pressure is too small, the paper is not compact enough. The pressing pressure needs to be accurately adjusted according to the purpose of the paper and the equipment conditions.Pressing time: The length of the pressing time will also affect the compactness and moisture removal efficiency of the paper. If the pressing time is too long, the paper is easily crushed; if the pressing time is too short, the paper is not compact enough. The pressing time needs to be set reasonably to ensure that the compactness and moisture removal efficiency of the paper are optimally balanced.Material and surface condition of the pressing roller: The material and surface condition of the pressing roller also have an important influence on the flatness and strength of the paper. Using suitable pressing roller materials and maintaining good surface conditions can improve the flatness and strength of the paper. 4. Control of paper dryingThe drying process is to evaporate the water in the paper so that the paper reaches the predetermined dryness and strength. During the drying process, the following key parameters need to be strictly controlled:Drying temperature: The drying temperature directly affects the drying speed and dryness of the paper. If the drying temperature is too high, the paper is easy to shrink and deform; if the drying temperature is too low, the paper is not fully dried. The drying temperature needs to be set reasonably according to the purpose of the paper and the equipment conditions.Drying wind speed: The size of the drying wind speed will also affect the drying speed and dryness of the paper. If the drying wind speed is too high, the paper is easily blown by the wind, affecting the flatness; if the drying wind speed is too low, the paper is not fully dried. The drying wind speed needs to be reasonably adjusted to ensure that the drying speed and dryness of the paper reach the best balance.Structure and layout of drying equipment: The structure and layout of drying equipment also have an important impact on the flatness and strength of the paper. The use of advanced drying equipment and reasonable layout methods can improve the flatness and strength of the paper. The use of multi-stage drying equipment and control of parameters such as the temperature and wind speed of each drying stage can further improve the quality of the paper.

Application status of environmentally friendly materials in custom large rolls of paperAs consumers' environmental awareness increases, the market demand for environmentally friendly large rolls of paper is growing. In order to meet this demand, more and more manufacturers have begun to pay attention to the environmental performance of products and actively use environmentally friendly materials to produce large rolls of paper. These environmentally friendly materials not only reduce pollution to the environment, but also improve the quality and durability of products. In the field of custom large rolls of paper, the application of environmentally friendly materials is mainly reflected in the following aspects:Raw material selection: When manufacturers are custom large rolls of paper, they give priority to renewable and degradable raw materials. These raw materials are not only widely available, but also can reduce dependence on natural resources and reduce carbon emissions.Production process: During the production process, manufacturers pay attention to energy conservation and emission reduction, and adopt advanced production processes and equipment to reduce the emission of wastewater, waste gas and solid waste. They also strengthen the recycling of production waste and realize the recycling of resources.Product packaging: The packaging of custom large rolls of paper also uses environmentally friendly materials, such as degradable plastics or paper packaging. These packaging materials not only reduce environmental pollution, but also improve the beauty and practicality of the product. Environmentally friendly materials availableThere are a variety of environmentally friendly materials to choose from in custom jumbo rolls. These materials have their own characteristics and can meet the needs and preferences of different consumers. The following are some common environmentally friendly materials: Virgin wood pulpVirgin wood pulp is one of the traditional raw materials for making jumbo rolls. Traditional wood pulp paper may have a certain impact on the environment during the production process. To solve this problem, manufacturers have begun to use virgin wood pulp produced by certified sustainable forestry resources. This kind of paper reduces the felling of virgin forests during the production process, reduces energy consumption and water pollution. Virgin wood pulp paper has excellent water absorption and toughness, and is suitable for making high-quality jumbo rolls. Bamboo pulpBamboo is a fast-growing and highly renewable plant resource. Bamboo pulp paper has natural antibacterial properties and has less impact on the environment during the production process. Bamboo pulp paper is also soft and absorbent, and is suitable for making jumbo rolls. Using bamboo pulp as a raw material can not only reduce dependence on forest resources, but also promote the development of the bamboo industry, achieving a win-win situation of economic and ecological benefits. Recycled pulpRecycled pulp is pulp made from recycled paper. Using recycled pulp to make jumbo rolls of paper can not only reduce the generation of waste, but also save raw materials and energy. The environmental performance of recycled pulp paper has been widely recognized, and the price is relatively affordable. More and more manufacturers are beginning to use recycled pulp as the raw material for customized jumbo rolls of paper. Natural pulp Natural pulp refers to pulp that has not been bleached, retaining the original color of the paper. This type of paper is generally considered to be healthier and more environmentally friendly because harmful chemicals may be used in the bleaching process. Natural pulp jumbo rolls of paper are gradually gaining favor among consumers in the market. It not only has a natural texture, but also can reduce pollution to the environment. In addition to the above common environmentally friendly materials, some new environmentally friendly materials have also been used in customized jumbo rolls of paper. Pulp made from agricultural waste such as sugarcane bagasse, hemp plants, etc., and degradable plastics treated with special processes. These new environmentally friendly materials not only have excellent physical properties, but also can reduce pollution to the environment, providing more options for customized jumbo rolls of paper.

1. Sustainable forest management: Guarantee the source of resourcesThe main raw material of Custom kraft paperboard is wood pulp, and the source of these wood pulps is directly related to the sustainability of forest resources. Today, many manufacturers follow strict sustainable forest management principles when selecting wood raw materials to ensure that their raw materials come from certified sustainable forests. The two most well-known forest management certification systems in the world are FSC (Forest Stewardship Council) and PEFC (European Forest Certification). FSC certification (Forest Stewardship Council): FSC certification is a globally recognized forest management certification that ensures that wood comes from environmentally friendly, socially responsible and economically viable forest management methods. FSC-certified wood products must ensure that biodiversity in the forest is protected and the rights and interests of local communities are not harmed. The certification also stipulates that in the use of forest resources, renewable and sustainable management methods must be adopted to maintain the ecological balance of the forest. PEFC certification (Programme for the Endorsement of Forest Certification): PEFC is another globally recognized forest certification system that focuses on the sustainable management of forest resources. PEFC-certified wood and paper products ensure that their logging will not lead to the depletion of forest resources, and that forests can be effectively restored after logging, thus achieving long-term sustainable wood production. Using FSC or PEFC-certified wood raw materials not only ensures the environmental friendliness of Custom kraft paperboard, but also provides consumers with confidence that these products are produced under responsible forest management. This commitment to sustainable forest resources helps to reduce environmental problems such as illegal logging and forest destruction, and fundamentally protects global forest resources. 2. Reduce dependence on virgin forestsTraditional paperboard production methods often rely on wood from virgin forests, and this kind of wood logging not only damages the ecological environment, but also leads to the loss of biodiversity. The production of Custom kraft paperboard mostly relies on managed and renewed secondary forests or plantations, which can be logged and regenerated naturally within a specified period. Through the effective management of these woodlands, the over-exploitation of virgin forests can be reduced, thereby reducing the negative impact on the global ecological environment. The management model of secondary forests and plantations has important environmental significance. After scientific planting and management, artificial forests can effectively improve the production efficiency of wood and reduce the pressure on natural virgin forests. This method not only ensures the stability of wood supply, but also effectively reduces carbon emissions, which helps to cope with global climate change. 3. Promote the balance of forest ecosystemsThe use of sustainable resources is not only to obtain wood, but also to maintain the balance of forest ecosystems. In order to support sustainable wood production, modern forestry management has taken a variety of measures to maintain the diversity and stability of the ecosystem. During the logging process, managers will consciously retain some tree species and areas with high ecological value, thereby providing habitats for wildlife and protecting soil quality and water resource cycles. Managed forests can avoid the negative consequences of deforestation and over-logging, and reduce environmental problems such as soil erosion and soil erosion. During the regeneration of the forest, newly planted trees can absorb carbon dioxide and purify the air, thereby playing a role in mitigating climate change. 4. Recycling and resource conservation of wood pulpIn addition to sustainable logging of wood, the environmental advantages of Custom kraft paperboard are also reflected in the recycling of wood pulp resources. In modern production, waste paper and recycled wood have become important sources of raw materials. Through advanced recycling technology, waste paper and recycled wood are reprocessed into new pulp, and then new paperboard products are made. This recycling not only effectively reduces the demand for new wood, but also reduces energy consumption and emissions in the production process. Many manufacturers of Custom kraft paperboard are actively promoting a closed-loop economy, that is, reducing dependence on primary resources by recycling paper and other wood materials. In this way, wood resources can be used in multiple life cycles, avoiding a large amount of resource waste and effectively reducing carbon emissions in the production process. 5. Promote green production and supply chain managementModern consumers and companies pay more and more attention to environmental protection and sustainability, and the use of sustainable resources is an important part of achieving green production. Custom kraft paperboard manufacturers usually follow the principles of green supply chain management throughout the production process to ensure that all links from raw material procurement, production and processing to product transportation meet environmental standards. Manufacturers not only require wood suppliers to provide sustainable certified raw materials, but also require the production process to reduce energy consumption, water pollution and exhaust emissions. Many manufacturers also use environmentally friendly transportation methods to reduce the negative impact on the environment during transportation. 6. Environmental policy and social responsibilityThe practice of using sustainable resources also reflects the social responsibility of enterprises in environmental protection. More and more companies are incorporating environmental protection into their corporate strategies and promoting green production models. This responsible production method can not only meet consumers' demand for environmental protection, but also help companies enhance their brand image and contribute to global sustainable development. Many Custom kraft paperboard manufacturers also further improve environmental standards and resource utilization efficiency in the production process by participating in environmental certification projects and investing in green technologies.

1. Growing demand for moisture and water resistanceAs the requirements for moisture-proof and waterproof performance of packaging materials in industries such as food, electronic products, and cosmetics increase, kraft paperboard is increasingly used in this field. Although traditional kraft paperboard has a certain degree of natural moisture resistance, its performance is often limited when faced with high humidity environments or direct contact with liquids. The development of kraft paperboard with high efficiency moisture-proof and waterproof functions has become a major trend in the industry. Manufacturers have significantly improved the moisture-proof and waterproof properties of kraft paperboard through technical means such as surface coating treatment, adding waterproof agents or adopting multi-layer composite structures, meeting the high requirements of different industries for the protectiveness of packaging materials. 2. Tear resistance and strength improvementDuring logistics and transportation, the tear resistance and strength of packaging materials are directly related to product safety. Consumers and businesses are increasingly inclined to choose packaging materials that can withstand greater external forces without being easily damaged. Kraft paperboard has good strength and toughness due to its natural fiber structure. However, in order to meet higher standards of transportation, manufacturers optimize the fiber ratio, increase the number of paperboard layers, and use special processing (such as embossing) to improve the strength and toughness of the paperboard. , calendering) and other methods further enhance the tear resistance and overall strength of the kraft paperboard, ensuring the safety of the product during long-distance transportation. 3. Diversification of printing and decorative effectsAs consumers’ aesthetic requirements for product appearance increase, the printing and decorative effects of kraft paperboard have also become important considerations. From simple monochrome printing to complex full-color printing, from lithography to gravure and flexographic printing, and then to the digital printing technology that has emerged in recent years, the printing process of kraft paperboard has been continuously upgraded, providing a rich visual expression space for brands. . The application of decorative techniques such as hot stamping, embossing, and UV glazing makes kraft paperboard packaging more visually attractive, enhancing the added value and market competitiveness of the product. 4. Continuous pursuit of environmental protection and biodegradabilityAs environmental awareness grows, consumers are particularly concerned about the environmental properties of kraft paperboard. In addition to basic recyclability, consumers also want packaging materials to degrade quickly after use to reduce the impact on the environment. Therefore, while maintaining the original environmental advantages of kraft paperboard, manufacturers continue to explore more environmentally friendly production processes and material alternatives, such as using recycled fibers and bio-based additives, to reduce carbon emissions and resource consumption during the production process. Ensure the biodegradability of the product. 5. Intelligence and functional integrationWith the development of Internet of Things technology, consumers' demand for intelligent packaging materials is also growing. As a packaging material, kraft paperboard has also begun to incorporate intelligent elements, such as RFID tags, QR code traceability systems, temperature sensing tags, etc. The application of these technologies not only improves the interactivity of packaging, but also provides brands with more opportunities to interact with consumers. opportunities and enhance consumers' shopping experience. Some special functional kraft paperboards, such as packaging materials with antibacterial, anti-mildew and fresh-keeping functions, have also begun to be used in food, medicine and other fields, meeting the special requirements of specific industries for the functionality of packaging materials. 6. Manufacturers’ response strategiesFaced with the diversification of consumers' functional needs, kraft paperboard manufacturers need to adopt flexible and diverse production strategies. On the one hand, we will increase investment in research and development, continuously introduce new technologies and new materials, and enhance the technical content and added value of our products; on the other hand, we will strengthen communication and cooperation with customers, gain a deep understanding of market demand, provide customized solutions, and meet customer needs. personalized needs. Focus on brand building and market promotion, enhance brand awareness and influence by participating in industry exhibitions, holding technical exchange meetings, etc., and attract more attention from potential customers.

1. Wood pulp qualityWood pulp is one of the main raw materials for making brown kraft paper. Its quality has a crucial impact on the tear resistance of paper. The quality of wood pulp determines the fiber structure, strength and durability of paper. Different types of wood pulp (such as softwood pulp, broadleaf pulp, etc.) will affect the different properties of paper. Softwood pulp (softwood pulp) and tear resistanceSoftwood pulp comes from coniferous trees such as pine and fir. Its fibers are long and flexible and can provide high tensile strength. The longer fibers in softwood pulp can form a stronger fiber web, thereby increasing the tear resistance of paper. Due to the length and strength of these fibers, brown kraft paper produced from softwood pulp usually exhibits better tear resistance and durability. Broadleaf pulp (hardwood pulp) and tear resistanceBroadleaf pulp comes from broadleaf trees such as oak and birch. These trees have shorter fibers but higher toughness. Hardwood pulp paper has a smooth surface and good water absorption, but its tear resistance is usually not as good as softwood pulp paper. Hardwood pulp is usually used to improve the softness and printability of paper, but if strong tear resistance is required, hardwood pulp alone may not be as effective as softwood pulp. Fiber length and quality of wood pulpIn addition to the source of wood pulp, the fiber length and quality of wood pulp are also key factors affecting the strength of paper. Longer fibers can interweave with each other to form a tighter network structure, improving the overall strength and tear resistance of paper. High-quality wood pulp usually has higher fiber quality and longer fiber length, which allows the paper to withstand more pressure and is not easy to be torn. 2. Use of recycled pulpRecycled pulp is another important raw material for brown kraft paper. Recycled pulp is usually made from recycled materials such as waste paper and cardboard through processes such as deinking and washing. Recycled pulp has significant advantages in environmental protection and reducing production costs, but its quality may also affect the tear resistance of paper. Quality differences of recycled pulpThe quality of recycled pulp is closely related to its source and processing process. Recycled pulp from high-quality raw materials (such as waste cartons, office paper, etc.) usually has good fiber quality, and the kraft paper made from it can also maintain strong tear resistance. Waste paper from poor sources (such as ink printing paper, paper with chemical coatings, etc.) may affect the quality of the pulp, resulting in poor strength and low tear resistance of the brown kraft paper. Recycled pulp and tear resistanceRecycled pulp usually contains shorter fibers, and its tear resistance is usually not as good as wood pulp. The fibers of recycled pulp will gradually become shorter and more fragile during repeated use and processing, resulting in a decrease in the overall structural strength of the paper. Nevertheless, by optimizing the processing process of recycled pulp and reducing impurities and foreign matter in the pulp, the strength of the paper can still be improved to a certain extent. Use of additivesDuring the manufacturing process, manufacturers may add some chemical additives to improve the fiber quality and strength of recycled pulp. These additives include reinforcing agents, cross-linking agents, flexibilizers, etc., which can improve the structure of recycled pulp and increase the bonding force between fibers, thereby improving the tear resistance of paper. The use of additives also needs to be cautious, because excessive use may affect the environmental performance of paper. 3. Raw material processing technologyThe raw material processing technology is another important factor affecting the tear resistance of paper. In the paper production process, wood pulp and recycled pulp will go through a certain processing process, including cooking, bleaching, beating, etc. These process steps directly affect the fiber structure and strength of the paper. Pulping processPulping is the process of mechanically treating the fibers in wood pulp or recycled pulp. Through beating, the fibers in the pulp will be further dispersed and elongated to form a more uniform fiber network. In this process, the length and shape of the fibers will affect the tear resistance of the paper. Proper beating can increase the strength of the paper and improve its tear resistance. Forming and pressingDuring the forming process of paper, the pulp will be evenly coated on the screen to form a thin paper layer. During the pressing process after forming, the paper will experience high pressure, which helps to make the fibers more closely bonded, thereby improving the strength of the paper. The pressure and time of pressing also directly affect the tear resistance of the paper. Improper pressing may result in a paper surface that is too tight, making it brittle and prone to tearing. Bleaching and decontaminationBleaching is the process used to remove the natural pigments in the wood pulp to make the paper whiter. While brown kraft paper is not typically bleached, even unbleached wood pulp may go through some decontamination process to remove unwanted impurities and resins. This helps improve the uniformity and strength of the paper, making it stronger and more resistant to tearing.

I. Customizability of brown kraft paper packaging1. Ease of operation of customized printingBrown kraft paper is a kind of paper that has not been bleached, so its surface maintains natural texture and roughness, and this natural texture provides a unique charm for packaging. On this basis, the customization of brown kraft paper is particularly prominent because it is very suitable for various printing processes and has good printing effects. Common printing methods include: Flexographic printing: This method is suitable for large-scale pattern and detail processing, which can ensure full color, clear pattern, and can be used for mass production. Flexographic printing is characterized by fast speed and wide application range, which is very suitable for large-scale customization of brown kraft paper packaging.Hot press printing: This technology uses hot pressing to emboss patterns or texts onto kraft paper, which can form a unique raised effect and increase the visual and tactile layering. Hot press printing is often used in high-end packaging, such as gift boxes, cosmetic packaging, etc.Screen printing: Screen printing is a process that is very suitable for small-scale customization, and can achieve more complex pattern designs at a lower cost. It is particularly suitable for the production of personalized small orders, and the brand can choose different colors and patterns according to needs.Hand-printing: Hand-printing is usually used for small batches and highly customized products, suitable for brands that pursue unique personality and exquisiteness. Hand-printing not only retains the natural texture of brown kraft paper, but also creates an artistic packaging effect.Through these printing techniques, companies can design packaging according to brand image, product characteristics and target market needs, making the packaging of each product unique. Whether it is a large area of ​​simple fonts or delicate patterns and logos, brown kraft paper can carry it well. 2. Personalized customizationIn addition to printing, brown kraft paper packaging is also highly customizable in shape, size and design. Brands can choose different packaging forms according to their needs, such as envelopes, bags, boxes, labels, etc., and can even customize functional designs such as handles and closures to meet the packaging needs of different commodities. Size customization: Companies can customize the appropriate packaging size according to the size, shape and quantity of the product. Especially for special-shaped products, customized size packaging can effectively reduce material waste and improve the compactness and beauty of packaging.Shape customization: Brown kraft paper packaging can not only be made into a standard rectangular box, but also into various special shapes such as round, trapezoidal, star-shaped, etc. according to demand, which enhances the creativity and uniqueness of the packaging.Functional customization: Some brands will add some additional functional designs to kraft paper packaging, such as waterproof coating, reinforced structure, hooks for easy hanging, etc., to meet the special requirements of different products and markets.This high degree of customization can make the brand stand out in the market with fierce homogeneity competition and provide consumers with more personalized and value-added products. 2. The aesthetics of brown kraft paper packaging1. Natural texture and visual impactOne of the biggest aesthetic features of brown kraft paper packaging is its natural texture. As an unbleached natural paper, brown kraft paper retains the natural wood texture and color, which makes it visually more rustic and environmentally friendly. For brands that focus on sustainable development, the natural, environmentally friendly and green image conveyed by brown kraft paper is particularly important. Compared with bright and colorful plastic packaging, the roughness and primitiveness of brown kraft paper gives people a visual experience of returning to nature. Whether it is high-end gift packaging or food packaging in daily life, brown kraft paper can convey the unique charm of the brand through its simple and natural appearance. 2. Simplicity and high-end feelingThe plainness of brown kraft paper itself makes it the preferred packaging material for many high-end brands. On this basis, through exquisite printing design, it is easy to create a simple and high-end packaging style. Many high-end brands will choose to use gold foil, silver foil, hot stamping or embossing technology on brown kraft paper to give the packaging more texture and depth, making the packaging simple and noble. The color tone of brown kraft paper is moderate, neither too cold nor too dazzling, which is very suitable as a packaging material with artistic atmosphere. Its neutral tone and various colors of printed patterns can create a harmonious visual effect. 3. Plasticity and creative spaceAnother major aesthetic advantage of brown kraft paper is its plasticity. In addition to common printing, brands can also create creative packaging on kraft paper through hand-made, cutting, folding and other methods. Some brands use kraft paper to make hand-folded bags or boxes, and then add decorative features by hand sewing or tying, making the packaging not only beautiful, but also with a unique handicraft atmosphere, enhancing the consumer experience. With the continuous improvement of environmental awareness, more and more consumers prefer packaging that is environmentally friendly and handmade, and brown kraft paper just fits this trend. Its combination of beauty and environmental protection gives the packaging new life and value.

I. Processability of PE coated paper1. PrintabilityThe surface of PE coated paper is coated with a layer of polyethylene film, which makes it more adaptable during the printing process. Although the polyethylene coating is a plastic film, its surface can be treated (such as corona treatment) to enhance its affinity, so that it can withstand conventional printing processes, including offset printing, flexographic printing and screen printing. This makes PE coated paper one of the most popular materials in the packaging and printing industry, especially in the fields of food packaging, daily product packaging, advertising bags, etc. When printing, PE coated paper can not only show high-quality printing effects, but also achieve bright colors and clear details due to its smooth surface. Whether it is text, pattern or trademark logo, PE coated paper can provide clear and vivid visual effects. This excellent printability makes PE coated paper widely popular in the market, especially today when the demand for brand packaging and personalized customization is growing. 2. Heat sealability and sealing propertiesPE coated paper also has good heat sealability, which means that it can be heated to make its surface adhesive, so as to achieve the closure and sealing of paper. Heat sealability is an indispensable feature of PE coated paper in the packaging industry, especially in situations where the contents of the package need to be kept fresh, such as food packaging, pharmaceutical packaging, etc. Heat sealability enables PE coated paper to be processed quickly and efficiently on the production line, providing high-quality sealing effects. Its coating softens during the heat sealing process and forms a strong bonding layer with other materials. PE coated paper is very suitable for automated production, greatly improving production efficiency. The heat sealability of PE coated paper also makes it highly adaptable when processing products such as plastic bags and paper cups, which can ensure that the sealing performance of the product meets strict requirements. 3. Cutting and mold processingAnother major processability feature of PE coated paper is its excellent cutability and mold processing. Compared with ordinary paper, the coating of PE coated paper increases its strength, making it smoother during cutting, punching and other processing. Whether using laser cutting, stamping dies, or traditional knife cutting, PE coated paper can ensure the accuracy and stability of processing. This feature makes PE coated paper widely used in customized packaging, gift boxes, food packaging, household product packaging and other fields. Manufacturers can cut PE coated paper into different shapes and sizes according to different needs to meet various customized packaging needs. 4. Tensile strength and durabilityCompared with ordinary paper, PE coated paper has higher tensile strength and durability. This enables it to withstand higher mechanical stress during packaging, especially in some packaging applications that require larger loads, such as logistics packaging, express bags, etc. PE coated paper can ensure that it will not be easily torn or damaged during transportation, thereby protecting the product from external damage. In some applications, the durability of PE coated paper can be further improved, for example, by compounding with other materials (such as aluminum foil, plastic film) to increase its protective performance. This multi-layer structure design not only improves the strength of the packaging, but also enhances its moisture-proof, waterproof, and oil-proof functions. 2. Multifunctionality of PE Coated Paper1. Waterproof and Oil-proof FunctionThe waterproof and oil-proof properties of PE coated paper are one of its most outstanding multifunctionalities. The polyethylene coating itself is waterproof, which enables PE coated paper to resist the invasion of external factors such as water, grease, and humidity. In food packaging, especially when dealing with oily foods or beverages, the oil-proof properties of PE coated paper are particularly important. It can effectively prevent oil from penetrating the outside of the package, keep the packaging appearance dry and neat, and ensure the freshness of the contents. PE coated paper can also effectively block the influence of moisture and the external environment in applications such as express packaging and takeaway packaging, thereby ensuring the safety of the items in the package. Its moisture-proof function enables PE coated paper to still provide good protection in rainy, snowy weather or humid environments. 2. Food Contact SafetyPE coated paper is widely used in food packaging, especially in food outer packaging, catering takeaway, food trays and other occasions. This is because PE coating, as a food contact safe material, can ensure that there will be no harmful effects on food ingredients. Polyethylene materials usually meet food contact safety standards, which makes PE coated paper the preferred material for many food packaging. Compared with some plastic coatings that may penetrate into food, PE coated paper is safer, and its degradable properties make it relatively friendly to the environment. PE coated paper not only meets the requirements of packaging performance, but also meets strict food safety standards. 3. Environmental protection and recyclabilityAlthough PE coated paper itself is a composite of polyethylene and paper, its paper component makes it more recyclable than packaging materials with complete plastic coatings. With the advancement of recycling technology, PE coated paper can be effectively recycled and reduced its impact on the environment. Compared with traditional plastic packaging, PE coated paper can be more easily separated from paper recycling materials after disposal, reducing resource waste. With the emphasis on environmental protection, many companies have begun to adopt more environmentally friendly PE coatings, such as bio-based PE coatings, which can reduce environmental pollution through biodegradation. This has further optimized PE coated paper in terms of environmental protection and is in line with the trend of sustainable development in the future. 4. Diversified market applicationsDue to its unique protective properties and processing convenience, PE coated paper has been widely used in food packaging, pharmaceutical packaging, cosmetic packaging, electronic product packaging, logistics packaging, express bags and other fields. In these fields, PE coated paper not only meets the needs of protection, printing and processing, but can also be customized according to different application scenarios to exert its versatility. Its wide applicability makes PE coated paper occupy an important position in the modern packaging industry.

1. Application field of PE coated paperThe application field of PE coated paper is very wide, covering food packaging, medical supplies, industrial packaging, electronic product packaging, cosmetic packaging and many other aspects. In the field of food packaging, PE coated paper is widely used in tea packaging, melon seed bags, bread bags, hamburger packaging, sugar packaging, coffee packaging bags, etc. due to its good waterproof, moisture-proof and oil-resistant properties. These packaging materials can not only effectively protect food from moisture and oil pollution, but also extend the shelf life of food and improve the hygienic quality of food. The field of medical supplies is also one of the important application fields of PE coated paper. In the medical field, PE coated paper is used to make medical equipment packaging, traditional Chinese medicine packaging, pesticide packaging, etc. These packaging materials not only have excellent waterproof and moisture-proof properties, but also can effectively isolate the invasion of microorganisms such as bacteria and viruses, ensuring the hygiene and safety of medical supplies. PE coated paper is also widely used in industrial packaging, electronic product packaging and cosmetic packaging. In the field of industrial packaging, PE coated paper is used to make the outer packaging of various industrial products, such as mechanical parts, electronic products, etc. These packaging materials can not only effectively protect industrial products from damage, but also improve the overall aesthetics and market competitiveness of the products. In the field of electronic products and cosmetics packaging, PE coated paper is used to make various exquisite packaging boxes and bags due to its good printing performance and processability. 2. The market demand for PE coated paper is growingWith the continuous development of the global economy and the improvement of people's living standards, the market demand for PE coated paper is growing. With the rapid development of food, medical, industrial and other fields, the demand for packaging materials is increasing, which has promoted the rapid development of the PE coated paper market. As consumers' requirements for food safety, environmental protection and aesthetics continue to increase, the demand for high-quality and environmentally friendly PE coated paper is also increasing. In the field of food packaging, as consumers' attention to food safety and sanitary quality continues to increase, the demand for high-quality and environmentally friendly PE coated paper is also increasing. These packaging materials can not only effectively protect food from contamination and damage, but also improve the sanitary quality and market competitiveness of food. At the same time, as people's requirements for the aesthetics of food packaging continue to increase, the demand for PE coated paper with exquisite printing and processability is also increasing. In the field of medical supplies, with the continuous advancement of medical technology and the increasing demand for medical health, the demand for high-quality, environmentally friendly PE coated paper is also increasing. These packaging materials can not only effectively isolate the invasion of microorganisms such as bacteria and viruses, ensure the hygiene and safety of medical supplies, but also improve the overall aesthetics and market competitiveness of medical supplies. In the fields of industrial packaging, electronic product packaging and cosmetics packaging, with the rapid development of these fields and the increasing requirements of consumers for product aesthetics and environmental protection, the demand for high-quality, environmentally friendly PE coated paper is also increasing. These packaging materials can not only effectively protect products from damage and pollution, but also improve the overall aesthetics and market competitiveness of products. 3. Market prospects of PE coated paperLooking to the future, the market prospects of PE coated paper are very broad. With the continuous development of the global economy and the improvement of people's living standards, the demand for packaging materials will continue to increase, promoting the rapid development of the PE coated paper market. With the continuous improvement of environmental awareness and the continuous advancement of technology, environmentally friendly PE coated paper products will become the future development trend. These products not only have good waterproof, moisture-proof, oil-resistant, heat-resistant and other properties, but also can effectively reduce the impact on the environment and meet the requirements of sustainable development. At the same time, with the intensification of market competition and the continuous changes in consumer demand, PE coated paper companies need to continuously improve their technical level and product quality, reduce costs and prices to meet market changes and meet consumer needs. Companies also need to strengthen marketing and brand building, improve product visibility and reputation, so as to occupy a favorable position in the fierce market competition.