China Guangzhou Donoyo Chemical Co., Ltd Company News

  The growing awareness of plastic's devastating impact on our environment and oceans has spurred a global movement to reduce consumption. However, the scale of the problem is often underestimated. Scientists estimate that a staggering 8 million tons of plastic waste enter our oceans every year, equivalent to a garbage truck being dumped into the sea every minute. The current accumulation is believed to be around 150 million tons. If this trend continues, predictions suggest there could be 250 million tons within a decade, and by 2050, the ocean could contain more plastic by weight than fish.     This pollution directly harms marine wildlife through ingestion and entanglement and introduces microplastics into the food chain, ultimately affecting human health. In response to this crisis, governments are enacting stringent regulations. The European Union, for example, has set mandates requiring that plastic products contain a minimum of 25% PCR content by 2025 for certain applications. This regulatory push, combined with consumer demand for sustainable products, is driving major brands to actively develop and incorporate PCR plastics into their packaging and products. Using PCR plastic is no longer just an environmental choice; it is a strategic necessity that fulfills corporate social responsibility and promotes the efficient, circular use of resources.

   Recycled Low-Density Polyethylene (LDPE): Sourced primarily from plastic films, LDPE is commonly found in grocery bag liners, food packaging, product overwraps, and agricultural greenhouse film. These post-consumer films are typically natural but can also be light blue or black, requiring careful sorting by color before the recycling process to ensure a consistent recycled granulate. Recycled Polypropylene (PP): This is a high-volume recycled stream originating from numerous everyday items. Common sources include food containers, household buckets, baskets, furniture like chairs and stools, and various packaging forms such as woven bags and strapping tapes.   Recycled Polyethylene Terephthalate (PET): As a crystalline plastic, recycled PET is predominantly recovered from single-use beverage bottles and food containers. Its properties of being lightweight, shatter-resistant, and energy-efficient to recycle have made it a cornerstone of packaging recycling, widely used in the food, beverage, and cosmetics industries. Recycled Acrylonitrile Butadiene Styrene (ABS): This engineering plastic is largely recovered from end-of-life electrical and electronic equipment (WEEE), consumer goods, and automotive components. Its durability makes it a valuable material for recycling back into high-performance applications.   Recycled High-Density Polyethylene (HDPE): Often recovered from milk jugs, detergent bottles, and rigid packaging, recycled HDPE is known for its strength and stiffness, making it suitable for new bottles, pipes, and plastic lumber. Recycled Polystyrene (PS): This category includes both solid PS from items like disposable cutlery and CD cases, and expanded PS (EPS) from packaging foam and insulation boards. The recycling process involves densifying the lightweight foam to be remolded into new products.

  The Global Recycled Standard (GRS) is an international, voluntary, and comprehensive product certification standard. Its primary objective is to verify and track the recycled content within a product while ensuring that its production adheres to strict environmental and social criteria. Managed by Textile Exchange, the GRS provides a robust chain of custody system that traces recycled materials from their source through the entire supply chain. A Transaction Certificate (TC) is a critical document in this ecosystem. It is issued by an independent certification body to provide proof that a specific shipment or batch of goods has been manufactured in compliance with the GRS requirements. Each TC serves as a verifiable link, confirming that the product's journey from raw recycled material to the final item has been monitored and validated.   The core purpose of GRS certification is to accelerate the adoption of recycled materials, thereby reducing resource consumption and waste. It offers companies a transparent and credible way to communicate their sustainability achievements to consumers. The standard encompasses key areas including recycled content verification, stringent environmental principles, social responsibility for workers, and strict chemical restrictions. The application process involves first obtaining a facility-level GRS certification through an audit. Subsequently, for every qualifying order, the company must apply for a TC by submitting supporting documents like invoices and shipping details to the certifying body, which then issues the transaction certificate.

  PCR, or Post-Consumer Recycled plastic, is material derived from plastics that have completed their life cycle as consumer products. These materials are extracted from everyday items like used personal care product bottles, discarded electronics, and end-of-life automotive parts. It's crucial to distinguish PCR from PIR (Post-Industrial Recycled) plastic. PIR, sometimes simply called industrial regrind, originates from waste generated during the manufacturing process itself, such as trimmings, startup shots, and off-specification products, which are recycled directly within the factory.   The fundamental difference lies in their source and environmental impact. The volume of post-consumer waste is astronomically higher than industrial scrap. Without effective recycling, plastics that have served their purpose would accumulate in landfills and natural environments, causing significant pollution annually. PCR plastics provide a powerful solution to this problem by creating a circular economy for post-use materials. This initiative is further propelled by global policies favoring recycled content. For instance, the UK's Plastic Packaging Tax imposes a levy of £200 per ton on packaging with less than 30% recycled content. Similarly, Corporate Social Responsibility (CSR) mandates in China and other regions are pushing major brands to increasingly integrate PCR plastics into their products, turning an environmental imperative into a strategic business advantage.

Recycled plastic modification represents an advanced technical process where post-consumer plastics are enhanced through physical and chemical methods to improve their performance characteristics. This sophisticated processing enables modified recycled materials to achieve properties that approach, equal, or even exceed those of virgin plastics, facilitating their reuse in various high-quality plastic products. A prominent example of this technology is wood-plastic composite material, an innovative environmental product prepared by blending waste wood with recycled plastic, supplemented with compatibilizers and processing aids. This composite material has gained widespread application in municipal construction projects, including urban garden landscapes and ground paving systems, demonstrating the practical implementation of circular economy principles. The modification process addresses several challenges inherent to recycled plastics, including material heterogeneity and inferior properties. Key enhancement strategies include blending with reinforcing agents such as glass fibers to improve structural integrity, and incorporating elastomers for enhanced toughness. Further improvements are achieved through the addition of compatibilizers and chain extenders, which improve the compatibility of mixed plastics and increase the molecular weight of recycled materials, thereby enhancing strength properties. Recycled plastic modification technology plays a crucial role in enabling comprehensive waste plastic recycling, contributing significantly to environmental protection efforts and supporting global initiatives for plastic pollution control. This approach not only extends the lifecycle of plastic materials but also creates value-added products from what would otherwise be waste, supporting sustainable development goals across multiple industries

The Global Recycled Standard (GRS) is an internationally recognized, voluntary product certification that ensures recycled material content in products meets specific standards while verifying the environmental friendliness of production processes. Developed by Textile Exchange, this certification system primarily monitors the amount of recycled materials used in products and tracks their source and flow throughout the entire supply chain. Complementing the GRS is the Transaction Certificate (TC), a crucial document that confirms a specific batch of goods complies with GRS standards. Issued by accredited certification bodies, the TC certificate provides proof that products—from raw materials to final goods—adhere to the specific requirements of standards like GRS, establishing a comprehensive production and sales supervision chain system. The primary purpose of GRS certification is to promote recycled material usage, reduce resource waste, and advance circular economy development. Through this certification, companies can ensure transparency in their products' recycled content and sources while meeting environmental protection and social responsibility requirements. The GRS standard encompasses requirements for recycled content, production and sales supervision chains, social and environmental practices, and chemical restrictions. The application process for GRS certification involves two key steps: First, companies must obtain GRS certification by submitting relevant information to certification bodies for comprehensive review. Subsequently, after certification is granted, companies can apply for TC certificates by submitting order contracts and other required documentation, which the certification body issues to verify compliance with GRS standards for specific shipments.

 The recycling workflow of Post-Consumer Recycled (PCR) materials involves several critical stages that transform waste plastics into valuable reusable resources. The process begins with Collection & Sorting, where post-consumer plastics such as packaging materials and bottles are systematically gathered, categorized by polymer type, and thoroughly cleaned to remove all non-plastic contaminants. This initial stage is crucial for ensuring the quality and purity of the recycled material. Following collection, the materials undergo Shredding, where cleaned plastics are mechanically crushed into smaller, uniform fragments. This size reduction facilitates more efficient processing in subsequent stages. The shredded materials then proceed to Melting & Purification, where they're heated to a molten state under carefully controlled temperatures. During this phase, any remaining impurities are systematically filtered out, ensuring the material meets quality standards for reuse. The final processing stage is Pelletization, where the purified molten plastic is extruded and cut into uniform pellets. These standardized pellets are ready for reuse in manufacturing processes, completing the transformation from waste material to valuable resource. Certification Requirements play a vital role in ensuring the integrity of PCR materials. To comply with sustainability standards like the Global Recycled Standard (GRS), final products must contain a minimum threshold of PCR content, typically starting at 20%. The certification process involves comprehensive traceability audits and verification of the entire recycling chain's integrity, providing assurance of the material's origins and processing history.

Plastic pollution impacts the environment and human health in multiple ways: Visual Pollution: Discarded plastics degrade urban and natural landscapes. Marine Pollution: Marine animals ingest or entangle in plastic debris, causing injury and death. Soil Pollution: Plastics in farmland hinder crop growth and reduce yields; they also leach toxins into groundwater. Microplastic Pollution: Persistent microplastics enter the food chain and pose health risks. To reduce plastic pollution, individuals can: avoid single-use plastics, use reusable bags and utensils, support green packaging, participate in recycling, and raise environmental awareness.

Recycled PP typically comes from household items like tubs, chairs, buckets, and woven bags. The process involves: Color sorting to enhance value. Crushing, washing, and drying. Mixing with colorants and additives. Extruding into pellets under controlled temperature to prevent brittleness. Water cooling and cutting into standardized 3x4mm pellets for reuse.

 PCR plastics are gaining significant traction in the kitchenware industry as manufacturers align with environmental policies and consumer preferences for sustainable products. These materials provide a practical and economical alternative to single-use biodegradable options such as PLA. PCR pellets are used to produce a variety of kitchenware items including food containers, utensils, cutting boards, and small appliances. They offer reliable supply stability, cost-effectiveness, and a reduced environmental footprint—making them an ideal choice for brands aiming to meet legislative requirements and consumer expectations without compromising quality or functionality.

  GRS certification verifies recycled content and sustainable production practices. Key requirements include: Traceability through the supply chain, with upstream suppliers also needing GRS certification or joint audit. Minimum 20% recycled content; products labeled with GRS logo must contain ≥50%. Audit covers: recycled material verification, social responsibility (e.g., BSCI/SA8000 compliance), chemical management, and environmental systems (energy, water, and waste management).

PCR (Post-Consumer Recycled) plastic is reprocessed from products that have reached the end of their consumer life, such as water bottles, food containers, electronics, and CDs. These materials undergo collection, sorting, cleaning, and reprocessing to become reusable granules. PIR (Post-Industrial Recycled) plastic, on the other hand, originates from manufacturing scrap—including runner systems, rejected products, and production waste—which is recycled directly at the factory. PIR is generally easier to process due to its consistent composition and minimal contamination. While both support sustainability, PCR addresses the larger challenge of consumer waste reduction, while PIR focuses on optimizing industrial resource efficiency.