Degradable plastic bags replace traditional plastic bags, which are both environmentally friendly and practical

   The white pollution brought by plastic bags is becoming increasingly severe and has received high attention The state has issued a new plastic ban, and biodegradable plastic bags have become the choice to solve the white pollution problem, becoming a substitute for traditional plastic bags alternatives. Although biodegradable plastic bags are not yet widespread and their costs are still relatively high, Shunxingyuan Packaging, a professional flexible packaging manufacturer, believes that using biodegradable plastic bags is better, as they are both environmentally friendly and possess the practicality of traditional plastic bags

  Biodegradable Plastic Bags refer to plastics whose various properties can meet performance requirements for use, remain unchanged during the storage period, and can degrade into substances harmless to the environment under natural conditions after use Bags 。

  Biodegradable plastic bags have advantages in performance, practicality, degradability, and safety. In terms of performance, biodegradable plastic bags can achieve or even exceed the performance of traditional plastics in certain specific areas; in terms of practicality, biodegradable plastic bags have similar application performance and hygienic properties as traditional plastic bags of the same type regarding degradability, biodegradable plastic bags after use, can quickly degrade in natural environments (specific microorganisms, temperature, humidity) and become fragments or non-toxic gases easily utilized by the environment, reducing environmental impact; in terms of safety, biodegradable plastic bags produce or leave residues that are harmless to the environment during the degradation process and will not affect the survival of humans and other organisms. However, the biggest obstacle to replacing traditional plastic bags at present and also a drawback of biodegradable plastics, is their production cost compared to similar traditional plastic bags or recycled plastic bags is high. Therefore, in application areas such as packaging and agricultural films, where the usage time is short, recycling and separation are difficult, performance requirements are not high, and impurity content requirements are strict, biodegradable plastic bags have a replacement advantage

Materials used in biodegradable plastic bags

  PLA: is one of the most common biodegradable plastics, a polymer obtained by polymerization using lactic acid as the main raw material. PLA production is pollution-free, and the product is biodegradable. After use, PLA can be composted, degrading into carbon dioxide and water at temperatures above 55°C or under oxygen-rich and microbial action, achieving material circulation in nature without affecting the environment. Currently, polylactic acid production mainly uses a lactide ring-opening polymerization process, where lactic acid is first dehydrated to form oligomers, then depolymerized to form lactide, and then ring-opening polymerized to produce polylactic acid. PLA also has reliable biosafety, biodegradability, good mechanical properties, and easy processability, widely used in packaging, textile industry, agricultural mulch films, and biomedical polymers. The disadvantage of PLA is that its degradation conditions are relatively strict. However, due to its relatively low cost among biodegradable plastics, PLA consumption ranks among the highest

  PBS: is formed by the condensation polymerization of succinic acid and 1,4-butanediol, with raw materials sourced from petroleum or bio-resource fermentation. PBS is easily decomposed into carbon dioxide and water by various microorganisms or enzymes in nature, possessing good biocompatibility, bioabsorbability, and heat resistance. PBS can be used in fields such as packaging films, tableware, foamed packaging materials, daily necessities bottles, medicine bottles, agricultural films, and slow-release materials for pesticides and fertilizers. Due to the limited availability of succinic acid raw materials in China, PBS derivatives PBAT and PBSA have emerged, which have generally similar properties to PBS but inferior processing performance

  PBAT: is a thermoplastic biodegradable plastic, generally produced from aliphatic acids and butanediol via petrochemical or bio-fermentation pathways. It possesses good ductility and elongation at break, as well as good heat resistance and impact performance. Due to PBAT's excellent film-forming properties and ease of film blowing, it is widely used in disposable packaging films and agricultural films. Furthermore, PBAT has excellent biodegradability, making it one of the most active research areas and best-performing degradation materials in the market for biodegradable plastics
       PHA: PHAs biodegradable plastics include polyhydroxyalkanoates (PHA), poly-3-hydroxybutyrate (PHB), copolymers of 3-hydroxybutyrate and 3-hydroxyvalerate (PHBV), and copolymers of 3-hydroxybutyrate and 3-hydroxyhexanoate (PHBH). PHAs biodegradable plastics are products of bacteria under unbalanced growth conditions. Among many biodegradable plastics, PHA has the most unique degradation method; after use, PHA can be completely degraded into β-hydroxybutyrate, carbon dioxide, and water within organisms. PHAs biodegradable plastics have a high heat distortion temperature and good biocompatibility, but a narrow processing temperature range, poor thermal stability, high brittleness, and unstable production quality. They can be used in disposable items, medical device surgical gowns, packaging bags and compostable bags, medical sutures, repair devices, bandages, orthopedic needles, anti-adhesion films, and stents, among other fields

      Besides PLA, PBAT, and PHA, the most widely used in Western Europe are starch-based plastics (also known as starch compounds or starch blends). Starch-based plastics are blends of modified starch and biodegradable polyesters (such as PLA/PBAT/PBS/PHA), which are fully biodegradable, compostable, and non-polluting to the environment. Although starch-based plastics are cheap, their service life, mechanical properties, and printing performance are relatively poor

Biodegradable Plastic Bag Suppliers

  Dongguan Shunxingyuan Packaging Products Co., Ltd. is a professional flexible packaging manufacturer with advanced production equipment. With over 19 years of experience in flexible packaging production, we possess strong R&D, design, and manufacturing capabilities. Our products are widely used in the apparel, food, chemical, home gifts, and hardware electronics industries. Adhering to the business philosophy of "survival through reputation, development through quality," and guided by the principle of "mutual cooperation, mutual benefit, and common development," we have established stable partnerships with clients worldwide. Our clients include renowned brands such as ADIDAS, AAPE, IZZUE, IT, and BRAINERD. Furthermore, Shunxingyuan obtained GRS (Global Recycled Standard) certification this year. The GRS focuses on recycled content, social and environmental practices, and chemical use throughout the supply chain, making it a key standard for recycled supply chains. Material reuse helps reduce reliance on non-renewable resources, minimizes waste, and lessens the environmental burden of waste disposal, contributing to sustainable social development. "Green production" has always been one of the core tenets of Dongguan Shunxingyuan Packaging Products Co., Ltd.'s business philosophy. The company has implemented a series of measures to continuously improve recycling and reuse technologies, reduce pollutant emissions, and utilize biodegradable base materials to optimize the production process. After implementing various optimization measures, Shunxingyuan Packaging successfully obtained GRS (Global Recycled Standard) certification this year. Our main business scope includes various types of plastic bags for apparel, food, chemical, home gifts, and electronics industries. This includes biodegradable plastic bags, printed multi-layer composite bags (center-seal, three-side seal, eight-side seal, and 3D bags), food packaging bags, apparel packaging bags, anti-static packaging bags, vacuum nylon bags, retort pouches, food roll film, aluminum foil bags, shampoo bags, ink cartridge bags, zipper bags with bone-shaped sliders, upright zipper bags, composite card-head bags, PE/PP/PO plastic bags, and PP/PE film packaging bags, etc. We warmly welcome your inquiries, discussions, and guidance, and look forward to sincere cooperation with you! Custom hotline: 135-4929-7179

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