GB/T 46396-2025Requirements and test methods of thermal insulating performance of home textiles (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the China National Textile and Apparel Council. This document is under the jurisdiction of the National Technical Committee on Standardization of Home Textiles (SAC/TC302). This document was drafted by: Luolai Lifestyle Technology Co., Ltd., Suzhou University, Nantong Fiber Inspection Institute, and Wuxi Vans Home Furnishings Technology Co., Ltd. Limited Liability Company, Jiangsu Provincial Textile Product Quality Supervision and Inspection Institute, Kaisheng Home Textiles Co., Ltd., and Ziluolan Home Textiles Technology Co., Ltd. The company, Hebei Guoxin Pure Cotton Home Textiles Co., Ltd., Donghua University, Ningbo Boyang Home Textiles Group Co., Ltd., and Hunan Mengjie Home Textiles Co., Ltd. Company, Hangzhou Guoyue Textile Co., Ltd., Qingdao Shangya Home Furnishings Co., Ltd., Jixiang Sanbao High-Tech Textile Co., Ltd., Shanghai Zhenaosheng Biotechnology Co., Ltd., Jiangsu Kangyichen Life Technology Co., Ltd., Nanjing Municipal Institute of Product Quality Supervision and Inspection, and Shandao Technology Development (Guangdong) Co., Ltd. Limited Liability Company, Shandong Jinhao Home Textiles Group Co., Ltd., Shanghai Mercury Home Textiles Co., Ltd., Shanghai Luozhong Technology Development Co., Ltd. Laizhou Electronic Instruments Co., Ltd., Wenzhou Darong Textile Instruments Co., Ltd., Zhejiang Norker Sporting Goods Co., Ltd., Zhongshan Quanyi Outdoor Products Technology Co., Ltd. The main drafters of this document are. Xue Jiachen, Lu Yehu, Qian Weiwei, Yang Yufang, Zhang Tong, Yang Xu, Huang Lingbin, Ge Ling, Gu Hong, Wang Fumei, and Zhang Qiuying. Liu Hui, Wu Minwei, Wang Yanpeng, Zhang Li, Feng Lian, Huang Huibiao, Zhang Yujie, Wu Ningxi, Wang Minjun, Wu Zhongping, Wang Rong, Li Meng, Zhang Mengsheng, Wang Weize Zheng Jianquan. Requirements and Test Methods for the Thermal Insulation Performance of Home Textiles

1 Scope

GB/T 46396-2025 is the Chinese national standard covering how warm a quilt or a blanket actually is - the thermal resistance measured on a guarded hot plate or a thermal manikin, the effect of the filling distribution and of compression, the moisture, and the grades a product may be sold under. First edition, under the China National Textile and Apparel Council. In force from 1 May 2026. Issued on 5 October 2025, it has been in force since 1 May 2026.

This document specifies the requirements for the thermal insulation performance of home textiles, describes the test methods for the thermal insulation performance of home textiles, and provides labeling information. Note the information in the content. This document applies to the quality control and evaluation of the thermal insulation performance of planar household textiles.

Note. Flat home textiles typically refer to quilts, comforters, blankets, or other similar products.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document.

GB/T 6529 Standard Atmosphere for Conditioning and Testing of Textiles

GB/T 8170 Rules for rounding off numerical values and the representation and determination of limiting values

ISO 15831 Method for determining the thermal resistance of clothing based on a thermal mannequin.

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 thermal resistance Rct The ratio of the temperature difference between the two sides of the sample to the heat flow per unit area passing perpendicularly through the sample. Note

1.This heat flow may include one or more of the following forms. conduction, convection, and radiation. Note

2.Thermal resistance is expressed in square meter Kelvin per watt (m2·K/W). [Source: GB/T 11048-2018, 2.1, with modifications]

3.2 Thermal resistance is determined by the heat transfer properties of the sample material itself.

3.3 When using flat, overlay-type home textiles on the human body, the overall thermal insulation performance of all materials, including the overlay sample, pillow, and mattress, is considered. Thermal resistance.

3.4 thermalmanikin Used to measure heat transfer under steady-state conditions through a sample of planar household textiles, simulating the human body shape and heat generation. Model. [Source: GB/T 38426-2019, 3.5, with modifications]

3.5 The lower limit of the temperature at which a user can maintain thermal balance when using a flat, covering home textile when relaxed.

Note. The relaxed state usually refers to the state of lying flat and resting.

4.Thermal insulation performance requirements Thermal insulation performance is classified into five levels based on its inherent thermal resistance (protective heat plate method) or combined thermal resistance (warm body dummy method), with level one being the lowest and level five being the highest. High. The thermal resistance values for each grade should meet the requirements of Table

1.The inherent thermal resistance and the overall thermal resistance are equivalent; satisfying either one is sufficient. Table

1 Thermal Insulation Performance Requirements The unit is square meters Kelvin per watt Warmth rating Thermal resistance Rct Inherent thermal resistance (protective hot plate method) Combined thermal resistance (warm body dummy method) Level 5 >=1.20 >=

0.80 Level 4.>=0.90, < 1.20; >=0.76, <

0.80 Level 3.>=0.75, < 0.90; >=0.72, <