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.

1. Advantages of kraft paper as a renewable resourceThe reason why brown kraft paper is regarded as a renewable resource is mainly due to the easy access and recyclability of its raw materials. The main raw materials of kraft paper are plant fibers, which come from renewable resources such as wood, bamboo, and bagasse. These resources are widely present in nature and can be continuously supplied through planting and growth. Compared with non-renewable materials such as petroleum-based plastics, the raw material sources of kraft paper are more environmentally friendly and sustainable. 2. Sources of raw materials for kraft paperWood: Wood is one of the most commonly used raw materials for kraft paper. Wood pulp for papermaking can be obtained by cutting down trees and undergoing a series of processing. As a renewable resource, wood has a relatively short growth cycle and can be sustainably used through reasonable forest management and logging practices.Bamboo: Bamboo is a fast-growing and easy-to-reproduce plant, and is also an important raw material for kraft paper. The production of bamboo pulp paper not only helps to reduce the consumption of wood resources, but also promotes the sustainable management and development of bamboo forests.Bagasse: Bagasse is a byproduct of the sugar industry and can be used for papermaking after processing. Using bagasse to produce kraft paper not only realizes the reuse of resources, but also reduces the emission of waste.3. The production process of kraft paperThe production process of kraft paper mainly includes the following steps: Raw material preparation: The raw materials such as wood and bamboo are crushed, soaked, and cooked to obtain wood pulp or bamboo pulp for papermaking.Pulping: The obtained pulp is bleached and purified to improve the quality and performance of the paper.Papermaking: The treated pulp is sent to the papermaking machine, and after pressing, drying and other processes, kraft paper with a certain thickness and toughness is finally obtained.Processing: According to customer needs, kraft paper is cut, printed, embossed and processed to meet the application needs of different fields.In the production process of kraft paper, recycling and reuse can also be adopted. The discarded kraft paper products are recycled and used for papermaking again, thereby realizing the recycling of resources. 4. Environmental significance of kraft paperReducing resource consumption: The raw materials of brown kraft paper come from renewable resources. Through reasonable utilization and management, it can reduce the consumption of natural resources and protect the ecological environment.Reducing environmental pollution: Compared with some plastics and synthetic materials, kraft paper has good biodegradability in the natural environment. Discarded kraft paper can be decomposed by microorganisms in a short time, thereby reducing the pollution of soil and water bodies. In addition, environmentally friendly production processes and equipment can be used in the production process of kraft paper to reduce the emission of wastewater, waste gas and solid waste.Promoting sustainable development: The renewability and recyclability of kraft paper help promote the development of the circular economy, realize the reuse of resources and the reduction of waste. This helps to promote the sustainable development of society and improve people's quality of life.Promoting green consumption: With the improvement of environmental awareness, more and more consumers have begun to pay attention to the environmental performance of products. As an environmentally friendly packaging and printing material, kraft paper can meet consumers' demand for green products and promote the development of green consumption.

Packaging industry: the strong backing of kraft paperIn the packaging industry, the application of brown kraft paper is undoubtedly the most widespread and significant. Due to its high strength, tear resistance, and waterproof and moisture-proof properties, kraft paper is widely used in the production of packaging boxes, cartons, paper bags, and filling materials. These packaging materials not only effectively protect the safety of goods during transportation and storage, but also reduce packaging damage rates and improve logistics efficiency. Especially in express delivery and mailing services, mailing envelopes, packages, and labels made of kraft paper have won the favor of a large number of users and courier companies due to their durability and resistance to damage.The environmental performance of kraft paper also makes it an important choice for green packaging. With the continuous improvement of global environmental awareness, more and more companies and consumers are paying attention to the environmental friendliness of packaging. Kraft paper comes from renewable resources such as wood fibers, and through sustainable forestry management and recycling, it can achieve resource recycling. This characteristic makes kraft paper play an important role in promoting green packaging and sustainable development.Art and Design: The Creative Stage of Kraft PaperIn the fields of art and design, brown kraft paper has also demonstrated its unique charm. Its natural color and texture provide artists with rich creative inspiration. Whether it is painting, Paper Cuttings, origami or other handicrafts, kraft paper can show a unique artistic effect. Therefore, in the field of art and design, kraft paper is often described as "brown art paper" or "craft paper" to emphasize its value as a material for artistic creation.Especially in sketching and painting techniques, the texture and color of kraft paper are very suitable for the needs of many artists. Its surface is rough and can grip the strokes of pencils or charcoal pencils well, giving the work a unique texture and sense of hierarchy. At the same time, the brown background of the kraft paper adds a natural and simple beauty to the work, making it more vivid and authentic.Architecture and Horticulture: A Practical Choice for Kraft PaperIn the field of architecture, brown kraft paper also has a wide range of applications. It is often used as a material to cover the ground and protect surfaces from dust, dirt, and damage. In addition, kraft paper also has good sound insulation and thermal insulation properties, so it is also used as building sound insulation and thermal insulation materials. These applications fully demonstrate the diversity and practicality of kraft paper.In the field of horticulture, kraft paper also plays an important role. It is often used as a plant cover or soil amendment, which can protect plant roots from the effects of cold and dryness, while improving soil water retention and permeability. These characteristics make kraft paper an indispensable assistant for gardening enthusiasts.Agriculture and Industry: The Wide Application of Kraft PaperIn the agricultural field, brown kraft paper is often used as seed bags, fruit tree wrapping paper, etc. These applications not only fully utilize the tough and durable characteristics of kraft paper, but also embody its concept of environmental protection and sustainable development.In the industrial field, kraft paper is also widely used. It is often used as a filtering material, insulation material, or electrical insulation material. These applications fully utilize the high strength and tear resistance of kraft paper, as well as its good breathability and moisture absorption. Especially in industrial fields that require high temperature, high pressure, or corrosive environments, the application of kraft paper is indispensable.

1. Production cost composition of P+ Series PLA Coated Kraft PaperWe need to understand the production process of P+ Series PLA Coated Kraft Paper. Its core components are kraft paper and PLA (polylactic acid) coating. The production process mainly includes the following steps:Kraft paper production: Kraft paper is made from wood pulp or waste paper through pulping, paper machine production and other processes. The raw materials are relatively environmentally friendly and low in cost. The production cost of kraft paper itself depends on the source of raw materials (such as wood pulp price) and the efficiency of the production process.PLA coating production: The production process of PLA coating usually involves dissolving PLA resin in a solvent and coating it on the surface of kraft paper. The price of PLA resin is higher than that of traditional plastics such as polyethylene (PE) and polypropylene (PP) because PLA is extracted from plant starch (such as corn or sugarcane) by fermentation. This process is more complicated and the price of raw materials fluctuates greatly.Coating drying and processing: The coated kraft paper needs to be dried and cooled, and then cut, packaged and other subsequent processes. The cost of this part is mainly affected by the investment and operating efficiency of processing equipment.The production cost of P+ series PLA coated kraft paper is higher than that of traditional packaging materials, which is mainly reflected in the cost of PLA coating and energy consumption in the production process. 2. Cost comparison with traditional packaging materialsTraditional packaging materials (such as plastic film, polyester paper, etc.) usually have lower production costs. Taking common polyethylene (PE) and polypropylene (PP) packaging materials as examples, the raw material procurement and production process of these materials are relatively simple, and the raw material price is relatively stable. In contrast, the price of PLA materials fluctuates greatly and requires higher production technology and sophisticated processing.Specifically, the coating material (PLA) of P+ series PLA coated kraft paper is usually 20% to 40% more expensive than traditional plastic films such as polyethylene. In addition, the production process of PLA materials requires more energy consumption, especially the high-temperature drying process, which further increases the production cost. Therefore, from the perspective of the production cost of a single product, P+ series PLA coated kraft paper is usually much more expensive than traditional plastic packaging paper. With the continuous advancement of technology, the production cost of PLA has gradually been optimized. In recent years, the production process of PLA has been innovated to a certain extent, and the production cost has been reduced. In addition, the price of raw materials (such as corn starch) has also been reduced to a certain extent, which has a positive impact on reducing the cost of PLA materials. 3. Trade-off between quality and competitivenessAlthough the production cost of P+ Series PLA Coated Kraft Paper is higher than that of traditional packaging materials, it has the following quality advantages, which makes it highly competitive in the field of environmental protection:Degradability: Compared with plastic packaging materials, P+ Series PLA Coated Kraft Paper has excellent biodegradability. PLA coated kraft paper can be degraded in a short time, with minimal pollution to the environment, while traditional plastic packaging takes hundreds of years to decompose, seriously affecting the ecological environment.Recyclability: In addition to good degradation performance, P+ Series PLA Coated Kraft Paper can also be recycled and reused to reduce resource waste. Traditional plastic packaging is often unable to be effectively recycled, or recycling is difficult, resulting in resource waste and environmental burden.Printability: P+ Series PLA Coated Kraft Paper has good surface smoothness, suitable for high-quality printing, and can meet the requirements of packaging designers for appearance and touch. Traditional plastic packaging often requires special processing due to its high surface gloss and prone to static electricity.However, these quality advantages need to be weighed against production costs. The high cost of P+ Series PLA Coated Kraft Paper may not completely replace traditional packaging materials in the short term, especially in price-sensitive markets. For consumers, choosing this packaging material requires a balance between environmental protection and cost. 4. How to achieve a more competitive priceAlthough the production cost of P+ Series PLA Coated Kraft Paper is high, there are several factors that can push its price gradually closer to traditional packaging materials:Scale effect: As market demand grows, the production scale of P+ Series PLA Coated Kraft Paper will expand, resulting in lower production costs. Large-scale production helps to dilute fixed costs, improve production efficiency, and further reduce unit costs.Technological progress: With the continuous innovation of technology, the production process of PLA materials will become more and more mature. For example, the supply chain of PLA production raw materials (such as corn, sugarcane, etc.) has been gradually improved, which can reduce the cost of raw material procurement. At the same time, the optimization of PLA coating process can also help reduce production costs.Policy support: More and more countries and regions have introduced environmental protection policies to encourage the use of biodegradable materials. These policies will provide more market opportunities for P+ series PLA coated kraft paper, and may also bring government subsidies and support, further reducing its production costs.

1. Material composition and characteristicsE+Series PP/PE Coated Kraft Paper consists of kraft paper substrate and polypropylene (PP)/polyethylene plastic coating. The kraft paper substrate is known for its high strength, high toughness and good tear resistance, while the PP/PE plastic coating provides additional moisture, oil and stain resistance. This unique material composition gives E+Series PP/PE Coated Kraft Paper significant advantages in damage prevention performance. 2. Tear resistanceTear resistance is one of the important indicators to measure the durability of packaging materials. E+Series PP/PE Coated Kraft Paper combines the high strength of kraft paper with the toughness of PP/PE coating, giving it excellent tear resistance. This property makes the material less likely to break when subjected to external forces, effectively protecting the items inside from damage.In practical applications, such as packaging heavy goods or fragile items, the tear resistance of E+Series PP/PE Coated Kraft Paper is particularly important. It can resist external forces such as extrusion and collision that goods may encounter during transportation and storage, thereby ensuring the integrity and safety of the goods. 3. Wear resistanceAbrasion resistance is key for packaging materials to maintain their functionality and appearance over the long term. The PP/PE coating of E+Series PP/PE Coated Kraft Paper not only improves the moisture-proof performance, but also significantly enhances the material's wear resistance. This wear-resistant property allows the material to resist friction and wear during transportation and storage, maintaining its integrity and aesthetics.When packaging items that are prone to wear and tear, such as textiles, electronic products, etc., the wear resistance of E+Series PP/PE Coated Kraft Paper is particularly important. It protects the integrity and quality of items by preventing them from being damaged by friction during transportation. 4. Impact resistanceImpact resistance is an important ability of packaging materials to protect the contents inside from damage during transportation. E+Series PP/PE Coated Kraft Paper has a certain thickness and strength and can resist a certain degree of impact and extrusion. This property makes the material excellent when packaging fragile or sensitive items, effectively preventing items from breaking or deforming due to impact.During the logistics transportation process, goods may encounter various impacts and extrusions, such as collisions during loading and unloading, bumps during transportation, etc. The impact resistance of E+Series PP/PE Coated Kraft Paper can effectively absorb these impact forces, thereby protecting the contents inside from damage. 5. Protect internal items from damage by external factorsIn addition to the above properties, E+Series PP/PE Coated Kraft Paper can also effectively prevent damage to internal items from external factors such as ultraviolet rays, dust, insects, etc. This comprehensive protective performance makes the material promising for a wide range of applications in the packaging field.Anti-UV performance: PP/PE coating can effectively block the penetration of ultraviolet rays and protect internal items from damage by ultraviolet radiation. This is especially important for items that need to be preserved for a long time, such as artwork, books, etc.Dust-proof performance: The surface of E+Series PP/PE Coated Kraft Paper is smooth and not easy to absorb dust, which can effectively prevent dust from contaminating internal items. This is especially important for items that need to be kept clean, such as electronic products and precision instruments.Anti-insect performance: PP/PE coating has certain sealing properties and can effectively prevent the invasion of insects. This is especially important for items such as food and medicine that need to be kept hygienic and safe. 6. Practical application casesThe damage prevention performance of E+Series PP/PE Coated Kraft Paper has been widely verified in practical applications. For example, in electronic product packaging, this material can effectively protect sensitive components such as circuit boards and displays from damage by impact and static electricity; in food packaging, it can prevent food from getting wet, deteriorating, and being contaminated by insects; in artwork and book packaging, where it protects these items from UV rays and dust damage.

I. Preparation before recycling1. Material identification and classificationE+Series PP/PE Coated Kraft Paper needs to be accurately identified and classified. This material usually has a specific logo or label to distinguish it from other types of paper or plastic. During the recycling process, it should be ensured that such materials are separated from other types of paper, plastic, etc. to avoid contamination and reduce the quality of recycling. 2. Cleaning treatmentBefore recycling, E+Series PP/PE Coated Kraft Paper should be cleaned. This includes removing impurities such as dirt, grease, and tape residues on the surface. Cleaning treatment helps to improve the purity and quality of the recycled materials, thereby increasing their reuse value. II. Recycling methods and technologies1. Mechanical recycling methodMechanical recycling method is one of the main methods for recycling E+Series PP/PE Coated Kraft Paper. This method separates paper fibers from plastic coatings by physical means, and then reuses them separately.Crushing and grinding: First, the recycled E+Series PP/PE Coated Kraft Paper is crushed and broken into smaller pieces using a crusher. Then, the pieces are further refined into fibrous powder using a grinder. This step facilitates the subsequent separation and purification process.Separation technology: Next, physical methods (such as screening, air separation, flotation, etc.) are used to separate the paper fibers from the plastic coating. Screening can separate according to particle size; air separation uses aerodynamic principles to separate according to different material densities; flotation uses the difference in buoyancy of materials in water to separate. These separation technologies can ensure the effective separation of paper fibers and plastic coatings, providing high-quality raw materials for subsequent reuse.Recycling: The separated paper fibers can be used to make new packaging materials, cardboard, etc.; while the plastic coating can be further processed to make plastic products or other composite materials. These recycled materials may be slightly inferior to virgin materials in performance, but they still have broad application prospects. 2. Chemical recycling methodChemical recycling method is a method of separating and reusing paper fibers and plastic coatings in E+Series PP/PE Coated Kraft Paper through chemical reactions.Dissolution and separation: First, use a specific solvent to dissolve E+Series PP/PE Coated Kraft Paper. The choice of solvent should be determined according to the chemical properties of paper fibers and plastic coatings. After dissolution, the paper fibers and plastic coatings are separated by chemical methods (such as precipitation, extraction, etc.). This step requires strict control of reaction conditions and operating procedures to ensure separation effect and material quality.Purification and reuse: The separated paper fibers and plastic coatings need to be purified to remove residual solvents and other impurities. The purified materials can be used to manufacture new products, such as paper, plastic products, etc. It should be noted that the chemical recycling method may produce certain pollutants such as wastewater, waste gas and waste residue, so corresponding environmental protection measures need to be taken for treatment and discharge. III. Environmental protection measures during the recycling processDuring the recycling process of E+Series PP/PE Coated Kraft Paper, corresponding environmental protection measures should be taken to ensure environmental safety and human health.Wastewater treatment: Wastewater generated during the recycling process should be purified before being discharged. Purification can be carried out by physical, chemical or biological methods to ensure that harmful substances in the wastewater are effectively removed.Waste gas treatment: Waste gas generated during the recycling process should be treated by dust removal, desulfurization, denitrification and other treatments before being discharged. These treatment measures can significantly reduce the content of harmful substances such as particulate matter, sulfur dioxide, nitrogen oxides, etc. in the waste gas.Waste residue treatment: Waste residue generated during the recycling process should be properly handled. For reusable waste residue, it can be used to manufacture new products or reused as raw materials; for non-reusable waste residue, it should be safely landfilled or incinerated, and ensure that it meets relevant environmental protection standards and requirements.