GB/T 29256.3-2012 English PDFUS$139.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 29256.3-2012: Textiles -- Woven fabrics -- Construction -- Methods of analysis -- Part 3: Determination of crimp of yarn in fabric Status: Valid
Basic dataStandard ID: GB/T 29256.3-2012 (GB/T29256.3-2012)Description (Translated English): Textiles -- Woven fabrics -- Construction -- Methods of analysis -- Part 3: Determination of crimp of yarn in fabric Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: W04 Classification of International Standard: 59.080.30 Word Count Estimation: 6,663 Quoted Standard: GB/T 6529 Adopted Standard: ISO 7211-3-1984, MOD Regulation (derived from): National Standards Bulletin No. 41 of 2012 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the determination of yarn in fabric shrinkage approach. This section applies to most fabric, does not apply in certain straight yarn tension can not completely eliminate the curl, as well as weaving, finishing, and the method of an GB/T 29256.3-2012: Textiles -- Woven fabrics -- Construction -- Methods of analysis -- Part 3: Determination of crimp of yarn in fabric---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. . Textiles Woven fabrics Construction Methods of analysis Part 3.. Determination of crimp of yarn in fabric ICS 59.080.30 W04 National Standards of People's Republic of China Textiles - Woven fabrics structure analysis method Part 3. yarn in fabric shrinkage measurement Part 3. Determinationofcrimpofyarninfabric (ISO 7211-3. 1984, MOD) Issued on. 2012-12-31 2013-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordGB/T 29256 "Textiles - Woven fabrics structure analysis method" includes the following sections. Part 1. Figure and heald weave, mechanized representation of FIG denting and lifting; Part 3. yarn in fabric shrinkage measurement; Part 4. Determination of twist in yarn removed from fabric; Part 5. Determination of linear density of yarn removed from fabric; Part 6. Fabric weft yarn mass per unit area was measured. This section GB/T Part of 329,256. This section drafted in accordance with GB/T 1.1-2009, rules GB/T 20000.2-2009 given. GB/T 29256 "textile fabric structure analysis machine" section above and the corresponding part of ISO 7211 series of standards corresponding. And ISO 7211 Part 2 corresponding to the national standard GB/T 4668-1995 "Determination of density woven fabrics", GB/T 4668- 1995 referring to the use of ISO 7211-2. 1984 developed. This section uses redrafted Law Amendment uses ISO 7211-3. 1984 "Textiles - Woven fabric structure analysis method - Part 3. Yarn in fabric shrinkage determination. " Part of this ISO 7211-3. 1984 The main differences are as follows. --- Deleted the introductory part, the introduction on the contents as a straight tension Chapter 4 Principle Note; --- Range increases do not apply to "as well as in the analysis process weaving, finishing and the method of yarn fabric damage"; --- Normative references are replaced by the corresponding international standards to national standards; Requirements --- Chapter 5 of the device increase the "minimum scale value of 1mm"; --- Will be incorporated within Appendix 8.1 and Table 1 column yarn increased cotton yarn, wool yarn and yarn type long; --- In Chapter 7 samples, the increase on the jacquard fabric sample comments. This part is proposed by the China Textile Industry Association. This part of the National Textile basic standards Standardization Technical Committee Technical Committee (SAC/TC209/SC1) centralized. This section is drafted. Textile Standard (Beijing) Inspection and Certification Center Co., Ltd., Zhejiang Branch Spinning Co., Ltd. Holy Mountain, Sun City (Xiamen) households Outside supplies Technology Co., Ltd. The main drafters of this section. Zheng Yuying, Wang Huan, Xu Myeong, Jung turbulent. Textiles - Woven fabrics structure analysis method Part 3. yarn in fabric shrinkage measurement1 ScopeThis section GB/T 29256 specifies the determination of yarn in fabric shrinkage method. This section applies to most woven fabrics, NA under a certain tension can not completely eliminate straight crimped yarn, as well as weaving, Collation and analysis of the method of yarn fabric damaged.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 6529 Textiles conditioning and testing using standard atmosphere (GB/T 6529-2008, ISO 139.2005, MOD)3 Terms and DefinitionsThe following terms and definitions apply to this document. 3.1 Weaving shrinkage percentagecrimp The percentage of yarn and fabric stretched length of the yarn ends from the difference of the latter. 3.2 Straight tension straighteningtension Elimination of woven yarn caused by crimps minimum force applied to the yarn. Principle 4 Remove from the fabric strip like a known length of yarn, under tension to make it straight and measure its length in this state, to weave shrink Rate shows the result. The size of the yarn tension according to the type and linear density selection. Note. This method required a tension crimped yarn straight. In theory, this tension should be to eliminate all without crimped yarn elongation, but actually difficult to achieve. Therefore, the tension given in Table 1, which are designed to stretch between the inevitable and does not completely eliminate curl balance, any residual curl It is negligible.5 device5.1 straight yarn and measuring devices, subject to the following requirements. a) shall have two clamps and clamp in a closed surface with parallel jaws; b) the distance between the two clamps can be adjusted; c) should be able to measure the distance between the two clamps, the minimum scale value of 1mm; d) Each clamp shall have a reference line (for example, about 2.5mm), seen from the side of the jaw when the clamp is closed; ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 29256.3-2012_English be delivered?Answer: Upon your order, we will start to translate GB/T 29256.3-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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