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FZ/T 50055-2021: Elastane filament yarns - Test method for dynamic drawability
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Elastane filament yarns - Test method for dynamic drawability
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FZ/T 50055-2021
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Basic data | Standard ID | FZ/T 50055-2021 (FZ/T50055-2021) | | Description (Translated English) | Elastane filament yarns - Test method for dynamic drawability | | Sector / Industry | Spinning & Textile Industry Standard (Recommended) | | Classification of Chinese Standard | W50 | | Word Count Estimation | 7,752 | | Issuing agency(ies) | Ministry of Industry and Information Technology of the People's Republic of China | FZ/T 50055-2021: Elastane filament yarns - Test method for dynamic drawability---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.
(Test method for dynamic stretchability of spandex filament)
ICS 59.060.20
W50
Textile Industry Standard of the People's Republic of China
Test method for dynamic draftability of spandex filament
Published on 2021-08-21
2022-02-01 Implementation
Published by the Ministry of Industry and Information Technology of the People's Republic of China
foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some content of this document may be patented. Publication of this document
Institutions do not assume responsibility for identifying these patents.
This standard is proposed by China National Textile and Apparel Council.
This standard is under the jurisdiction of Shanghai Textile Industry Technical Supervision Institute.
This standard was drafted by. Jiangsu Shuangliang Spandex Co., Ltd., Zhejiang Huafeng Spandex Co., Ltd., Xinxiang Chemical Fiber Co., Ltd., Zhengzhou
Zhou Zhongyuan Spandex Engineering Technology Co., Ltd., Huafeng Chongqing Spandex Co., Ltd., Ningxia Ningdong Taihe New Material Co., Ltd., Shanghai Textile Industry
Technical Supervision Institute, China Chemical Fiber Industry Association.
The main drafters of this standard. Liu Guiying, Zhou Zhineng, Zhao Xiaoyang, Ji Yudong, Zhou Li, Liu Shanshan, Wang Chao, Zhu Shengtao, Wang Lili, Zhang Zixin.
Test method for dynamic draftability of spandex filament
1 Scope
This standard specifies the test methods for the dynamic draftability of spandex filaments.
This standard is applicable to spandex filament with linear density of 10.0dtex~111.1dtex, and other specifications can be used for reference.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 4146 (all parts) Textile chemical fibers
GB/T 6529 Standard atmosphere for textile humidity conditioning and testing
3 Terms and Definitions
The terms and definitions defined in GB/T 4146 (all parts) and the following terms and definitions apply to this document.
3.1
Elongation at break in dynamic unwind state.
4 Principles
The sample is actively unwound at a certain speed. Under the condition that the input roller speed (ie. unwinding speed) remains unchanged, by continuously increasing the input roller speed
The speed of the roller is increased, and the draft ratio during unwinding is increased until the sample breaks. The dynamic stretchability of the samples was characterized by the dynamic elongation at break.
The schematic diagram of the principle is shown in Figure 1; the schematic diagram of the result is shown in Figure 2.
Figure 1 Schematic diagram of the principle
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