GB/T 44507-2024 English PDF

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GB/T 44507-2024: Test method of leatherette - Determination and evaluation of surface scratch
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 44507-2024	289	Add to Cart	3 days	Test method of leatherette - Determination and evaluation of surface scratch	Valid

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Basic data

Standard ID: GB/T 44507-2024 (GB/T44507-2024)
Description (Translated English): Test method of leatherette - Determination and evaluation of surface scratch
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y47
Classification of International Standard: 59.080.40
Word Count Estimation: 14,198
Date of Issue: 2024-09-29
Date of Implementation: 2025-04-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 44507-2024: Test method of leatherette - Determination and evaluation of surface scratch

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 59.080.40 CCSY47 National Standard of the People's Republic of China Test methods for artificial leather and synthetic leather Determination and evaluation of surface scratch resistance Released on 2024-09-29 2025-04-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Foreword

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. Please note that the content 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 China Light Industry Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Plastic Products (SAC/TC48). This document was drafted by. Suzhou Ruigao New Materials Co., Ltd., Changhong Meiling Co., Ltd., Hefei Ketian Waterborne Technology Co., Ltd. Responsible Company, Ma'anshan Ruigao Technology Co., Ltd., Kunshan Achilles New Materials Technology Co., Ltd., Zhejiang Meisheng New Materials Co., Ltd., Shanghai Hai Automobile Group Co., Ltd. Passenger Vehicle Branch, Zhejiang Hexin New Materials Co., Ltd., Kunshan Beice Testing Technology Co., Ltd., Beijing CHJ Information Technology Co., Ltd., Shanghai Weilai Automobile Co., Ltd., Lishui Quality Inspection and Testing Institute, Shandong Tongda Haidao New Materials Co., Ltd., Zhejiang Luoxing Chemical Co., Ltd., Tenshou (Fujian) Microfiber Technology Co., Ltd., Hubei Qili Polymer Materials Co., Ltd. Co., Ltd., Anhui Amway Materials Technology Co., Ltd., Foshan Weisda New Materials Co., Ltd., Chongqing Shuangxiang Microfiber Materials Co., Ltd., Fujian Huaxia Synthetic Leather Co., Ltd., Nantong Deyi New Materials Co., Ltd., Suzhou Best Decoration New Materials Co., Ltd., Zhejiang Jiake New Materials Material Technology Co., Ltd., Dongguan Hebiao Technology Co., Ltd., and Shanghai Dingzhen Testing Technology Co., Ltd. The main drafters of this document are. Gao Jingang, Yang Hao, Fan Xuefu, Sun Fengyun, Zhang Tao, Zhu Youkui, Zhao Jianming, Qian Neng, Yin Jianwei, Lan Bi, Wu Yuan, Xu Yiyan, Wang Weixin, Ben Xianli, Xu Xiaofeng, Ji Yijie, Ying Yueyue, Xu Xuri, Yao Dusheng, Zhou Wenzhi, Liu Aiming, Jia Yisong, Hong Aijun, Yang Wentao, Li Hualin, Chen Qiaojian, Sun Bin, Zheng Sixian, Qu Xinghe, Wei Guo. Test methods for artificial leather and synthetic leather Determination and evaluation of surface scratch resistance

1 Scope

This document describes the scratch resistance test of artificial leather and synthetic leather using the metal finger scratch method (Method A), the paper clip scratch method (Method B) and the rotary scratch method. The principle of the rubbing method (C method), test instruments, specimens, test procedures, evaluation of test results, expression of results and test report. This document is applicable to the determination and evaluation of the scratch resistance of artificial leather, synthetic leather and their products.

2 Normative references

The contents of the following documents constitute 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 2918 Standard environment for conditioning and testing of plastic specimens QB/T 1149-2011 Paper clips QB/T 2726-2005 Physical and mechanical tests on leather - Determination of wear resistance

3 Terms and definitions

There are no terms or definitions that require definition in this document.

4 Test methods

4.1 Method A—Metal Finger Scratching Method 4.1.1 Principle The metal finger scratching method is divided into two methods. single finger scratching and five finger scratching. Place the test surface of the sample upward and fix it on the metal finger scratching test Use one finger or five fingers to apply a specified load on the specimen, and move the mobile platform for a certain distance at a specified speed. Under the specified light source, evaluate the scratch degree of the sample surface after scratching. 4.1.2 Test equipment 4.1.2.1 Metal finger scratch tester The metal finger scratch tester is equipped with a movable platform for moving samples. The movable platform is installed under 5 metal fingers. The fingers are independent of each other, and the metal fingers are replaceable (the metal finger material is tungsten carbide, and the finger tip is a hemispherical shape with a diameter of 1.0mm±0.1mm). The metal finger is loaded with loads of different masses, and the load can be applied to the surface of the sample through the metal finger. The load is specified in Table 1. The schematic diagram of the scratch test machine structure is shown in Figure 1, and the schematic diagram of the metal finger is shown in Figure 2. ......

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