FZ/T 12018-2019 PDF English
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FZ/T 12018: Historical versions
| Standard ID | USD | BUY PDF | Delivery | Standard Title (Description) | Status |
| FZ/T 12018-2019 | 190 | Add to Cart | Auto, 9 seconds. | Compact spun combed cotton grey yarn | Valid |
| FZ/T 12018-2009 | 559 | Add to Cart | 3 days | Cotton grey compact combed yarns | Obsolete |
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FZ/T 12018-2019: Compact spun combed cotton grey yarn
---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/FZT12018-2019FZ TEXTILE INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 59.080.20 W 12 Replacing FZ/T 12018-2009 Compact spun combed cotton grey yarn 紧密纺精梳棉本色纱线 ISSUED ON: DECEMBER 24, 2019 IMPLEMENTED ON: JULY 01, 2020 Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Table of Contents
Foreword ... 3 1 Scope ... 4 2 Normative references ... 4 3 Terms and definitions ... 5 4 Classification, labeling ... 5 5 Requirements ... 5 6 Test methods ... 8 7 Inspection rules ... 10 8 Marks, packaging ... 10 9 Others ... 10 Annex A (normative) Calculation of 100-meter mass of compact spun combed cotton grey yarn ... 11 Annex B (normative) Test method for hairiness index H value ... 12 Compact spun combed cotton grey yarn1 Scope
This Standard specifies the terms and definitions, classification, labeling, requirements, test methods, inspection rules and marks, packaging for compact spun combed cotton grey yarn. This Standard is applicable to combed cotton grey yarn produced by compact spinning technology.2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 3292.1, Textiles - Unevenness of textile strands - Part 1: Capacitance method GB/T 3916, Textiles - Yarns from packages - Determination of single-end breaking force and elongation at break GB/T 4743-2009, Textiles - Yarn from packages - Determination of linear density (mass per unit length) by the skein method GB/T 5705, Textiles - Cotton textile products - Terminology GB/T 6529, Textiles - Standard atmospheres for conditioning and testing GB/T 8170, Rules of rounding off for numerical values & expression and judgement of limiting values FZ/T 01050, Textiles - Classifying and testing method of yarn faults - Capacitance FZ/T 01086, Test method for yarn hairness - Projection counting method FZ/T 10007, Inspection rules for grey yarn of cotton, man-made fiber or their blend FZ/T 10008, Marking and packing of yarn spun with pure cotton, pure chemical fibre or blend3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 5705 as well as the followings apply. 3.1 compact spun combed cotton grey yarn the yarn that a fiber gathering device is added before the drafting part of the ring spinning frame, and the combed cotton sliver fiber is gathered and spun by airflow or mechanical means4 Classification, labeling
4.1 The product specifications of compact spun combed cotton grey yarn are classified according to different production processes and linear densities. 4.2 The production process and raw material code of compact spun combed cotton grey yarn are indicated by English letters. CP is the code for compact spinning. JC is the code for combed cotton. 4.3 When the compact spun combed cotton grey yarn is marked with a code, the production process code and raw material code of the yarn shall be marked before the line density. Example 1: The compact spun combed cotton grey yarn with a linear density of 14.8tex shall be written as CP JC 14.8 tex. Example 2: The compact spun combed cotton grey double-stranded thread with a linear density of 14.8tex shall be written as CP JC 14.8tex × 2.5 Requirements
5.1 Items The technical requirements for compact spun combed cotton grey yarn (thread) include 9 items: linear density deviation rate, linear density variation coefficient, single yarn (thread) breaking strength, single yarn (thread) breaking strength variation coefficient, evenness variation coefficient, kilometer thick section (+50%), kilometer neps (+200%), 100,000-meter yarn defect, hairiness index H value or 2mm hairiness index. 5.2 Grading regulationsAnnex B
(normative) Test method for hairiness index H value B.1 Principle The principle of photoelectric hairiness detection is: When the continuously moving yarn passes through the detection zone, the hairiness of the protruding yarn body scatters the continuous monochromatic parallel light in the detection area. The scattered light is accumulated by the lens system and detected by the photoelectric sensor. The electrical signal output by the detector can be processed by the circuit to provide various results indicating the characteristics of yarn hairiness. B.2 Instruments B.2.1 Yarn frame: enables the yarn of various packages to be unwound under a certain tension, and prevents the yarn from being accidentally elongated or damaged. B.2.2 Detector: photoelectric measuring groove and roller traction device that can make the yarn pass through the measuring groove at a certain speed. B.2.3 Controller: control the testing process and complete the processing of the electrical signal of yarn hairiness. Obtain various test results for display or printing (hairiness H value, sH value, hairiness spectrogram, hairiness unevenness curve and so on.) B.3 Sampling quantity and test times B.3.1 Sampling quantity of single yarn and strand: 10 rolled packages. B.3.2 Test times: 1 test for each rolled package. B.3.3 The sampling quantity and test times can be specified as needed. The recommended sampling length is 250m~2000m. The length for conventional test is 400m. The length for product acceptance arbitration test is 1000m. B.4 Atmospheric conditions B.4.1 The humidity conditioning of the specimen shall be balanced for 24h in accordance with the standard atmosphere in GB/T 6529, that is, when the temperature is (20.0±2.0)°C and the relative humidity is (65.0±4.0)%. When more than one test is required for a large and tight sample rolled package or for ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
