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GB/T 46020.1-2025: Plastics - Guide of design for recycling - Part 1: Poly(ethylene terephthlate) (PET)materials
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GB/T 46020.1-2025: Plastics - Guide of design for recycling - Part 1: Poly(ethylene terephthlate) (PET)materials

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT46020.1-2025
ICS 83.080.01;13.030.50 CCSG31 National Standard of the People's Republic of China Plastic Recyclable Design Guide Part 1.Polyethylene terephthalate (PET) materials Released on August 1, 2025 Implementation on February 1, 2026 State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Symbols and abbreviations 3 5 Categories 4 6 Basic Principles 4 7 Design Elements 4 8 Test Methods 8 9 Determination of Recyclable Design Classification 10 Appendix A (Normative) Preparation Method for Recyclability Evaluation Test Samples 11 Appendix B (Normative) Test method for agglomeration of PET flakes 15 Appendix C (Normative) PET Flake Baking Test Method 17 Appendix D (Normative) Melt Extrusion Pressure Change Characterization Method 18 Appendix E (Normative) PET product accessories, label floating and sinking sorting test method 20 Appendix F (Normative) Method for determining whether PET products are transparent or opaque 22 Appendix G (Normative) PET product recyclable design classification test recommended values 23 Reference 24 Preface This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is Part 1 of GB/T 46020 “Guidelines for design of plastics for recycling and regeneration”. GB/T 46020 has been published in the following parts. --- Part 1.Polyethylene terephthalate (PET) material; --- Part 2.High-density polyethylene (PE-HD) material. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Technical Committee on Plastics Standardization (SAC/TC15). This document was drafted by. Guangxi Wuzhou Guolong Renewable Resources Development Co., Ltd., Fujian Sailong Technology Co., Ltd., Avery Dennison (China) Co., Ltd., Fuzhou Chengtou New Infrastructure Group Co., Ltd., Haolai Chemical (Zhongshan) Co., Ltd., Jiangsu Saiweier New Materials Technology Co., Ltd., Chengdu Huantou Recycling Technology Co., Ltd., Taiyuan University of Technology, Zhonglan Chenguang Chengdu Testing Technology Co., Ltd., South China University of Technology, Unilever (China) Co., Ltd., Hebei Juxun Renewable Resources Recycling Co., Ltd., Nongfu Spring Co., Ltd., Ningbo Lishi Daily Necessities Co., Ltd., Henkel (China) Investment Co., Ltd., Danone (China) Food and Beverage Co., Ltd., UPM Raflatac (China) Co., Ltd., L'Oréal (China) Co., Ltd., Nivea (Shanghai) Co., Ltd., China National Petroleum Corporation Petrochemical Research Institute Co., Ltd., Hebei Tenghong Industrial Co., Ltd., Mitsubishi Gas Chemical Trading (Shanghai) Co., Ltd., Fujian Canhua Environmental Protection Materials Co., Ltd., Henan Zhongyang Environmental Protection Technology Co., Ltd., Anhui Peak Technology Co., Ltd., Shenyang Baby Technology Development (Beijing) Co., Ltd., Shenzhen Green Ring Renewable Resources Development Co., Ltd., Wuxi Yiwei Import and Export Co., Ltd., Beijing Huasu Chenguang Technology Co., Ltd., China Synthetic Resin Association, Tonggui Technology Chengdu Co., Ltd., Guangzhou Hai Close Technology Center. The main drafters of this document are. Guo Jiawan, Chen Daoming, Li Tianyuan, Liu Congcong, Lu Dongyan, Lin Zhiwen, Lin Mingxiang, Zhang Shuo, Li Xuebing, Li Shurun, Xie Peng, He Hui, Yang Ying, Sun Jinkai, Xu Sheng, Li Lixin, Chen Minjian, Su Sainan, Liu Yingying, Yu Xue, Zhou Xinchen, Xiao Ping, Qu Jingbo, Guo Chaoke, Shi Jun, Xie Huatian, Zhang Xin, Wang Tianyong, Shen Yang, Wu Yang, Sun Xiao, Chen Hongyuan, Wang Wang, Zheng Huiqin, Li Dan, Chen Junqing, and Lin Xi.

introduction

Plastics are widely used in various fields of production and life. Recycling and reusing post-consumer plastics is an important way to improve the efficiency of plastic resource utilization and solve the problem of plastic waste. It is an important way to solve plastic pollution and reduce carbon emissions. In order to obtain high-quality recycled plastic materials, promote the recycling of plastics, and improve the recycling rate of plastics The large-scale and standardized development of the recycling industry and the reduction of pollution in the plastic recycling process require the participation of the entire plastic industry chain. The design and production stages of plastic products fully consider the material selection of various design elements such as basic resins, auxiliary materials, additives, etc., so that the plastic can be Better recycling and reuse. This urgently requires a set of standardized plastic product recyclable design guidelines to help designers in designing plastics. When producing a product, correctly select suitable materials for the product and its components, and design plastic products that are conducive to recycling. The lack of relevant standards for the recyclable design guidelines for plastic products may lead to more pollutants being introduced into the plastic recycling system. The economic efficiency of plastic recycling is weakened, and plastic products are difficult to recycle. The design of Fan plastic products has a positive driving effect on improving the quality and efficiency of plastic recycling. Based on the existing plastic recycling flow, GB/T 46020 "Guidelines for Design of Recyclable Plastics" is planned to consist of four parts. --- Part 1.Polyethylene terephthalate (PET) material. The purpose is to guide the recyclable design of PET materials. --- Part 2.High-density polyethylene (PE-HD) materials. The purpose is to guide the recyclable design of HDPE materials. --- Part 3.Polypropylene (PP) materials. The purpose is to guide the recyclable design of PP materials. --- Part 4.Polyethylene (PE) materials for film and flexible packaging. The purpose is to guide the PE materials used for film and flexible packaging Recyclable design. This document is part 1 of GB/T 46020 and provides the use of polyethylene terephthalate (PET) as the base resin. The main considerations when designing products are to make it easier for PET products to be recycled after use by consumers through the widely available recycling process. Recycled plastics that meet the performance requirements of downstream applications. Plastic Recyclable Design Guide Part 1.Polyethylene terephthalate (PET) materials

1 Scope

This document provides the classification, basic principles, design elements involved in the design of recyclable polyethylene terephthalate (PET) materials. Guidance on the elements, test methods and classification of recyclable designs. This document applies to PET or rigid packaging containers with PET as the main component and Recyclable design of thermoformed products made from PET sheets. This document is not applicable to the recyclable design of PET chemical fibers, films and other products.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 1844 (all parts) Plastic symbols and abbreviations GB/T 2035 Plastics Terminology GB/T 14190-2017 Test methods for fiber-grade polyester (PET) chips GB/T 17931 Polyethylene terephthalate (PET) resin for bottles GB/T 19466.3 Plastics Differential Scanning Calorimetry (DSC) Part 3.Determination of Melting and Crystallization Temperatures and Enthalpies GB/T 22396 Terminology for pressure-sensitive adhesive products GB/T 40006.9 Plastics Recycled Plastics Part 9.Polyethylene terephthalate (PET) Materials

3 Terms and Definitions

The terms and definitions defined in GB/T 2035 and GB/T 22396 and the following apply to this document. 3.1 Recyclable The product, packaging or its components can be diverted from the waste stream through feasible options and processes and can be collected, processed and recycled in their original form. put into use in the form of materials or products. [Source. GB/T 16716.4-2018, 3.6, modified] 3.2 Recyclability The product, packaging or its components (accessories) have the properties of being recyclable and renewable. Note. The main features are as follows. 1) The raw materials used in the product are thermoplastic materials, excluding those that are restricted from reuse due to existing technological levels and health, environmental protection, safety and other factors. Materials; 2) Products can be correctly sorted and collected into the recycling system for recycling; 3) The recycling and regeneration methods of the product are feasible; ...