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FZ/T 01026-2017 English PDF (FZT01026-2017)

FZ/T 01026-2017 English PDF (FZT01026-2017)

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FZ/T 01026-2017: Textiles - Quantitative chemical analysis - Multi-component fibre mixtures

This Standard specifies the terms and definitions, product marking, technical requirements, test methods, inspection rules and marks, packaging, transportation, and storage of the polyester and polyamide composite partially oriented yarns. This Standard applies to segmented polyester and polyamide composite partially oriented yarns - total linear density is 60 dtex - 600 dtex; linear density per filament is 1.70 dtex - 5.60 dtex; polyester and polyamide proportional range is 90/10 to 65/35; with circular cross section, natural color, and bright and semi dull. This Standard applies to sheath-core polyester and polyamide composite partially oriented yarns with 100 dtex to 390 dtex total linear densities, 1.60 dtex to 6.50 dtex linear density per filament, 85/15 to 50/50 polyester and polyamide proportional range, circular cross section, which are also naturally colored, bright and semi dull. This Standard applies to partially oriented yarns that are manufactured by the composite spinning process with polyester (PET) and polyamide (PA6). Other polyester and polyamide composite partially oriented yarns may reference to this Standard.
FZ/T 01026-2017
FZ
TEXTILE INDUSTRY STANDARD OF
THE PEOPLE REPUBLIC OF CHINA
ICS 59.080.01
W 04
Replacing FZ/T 01026-2009
Textiles - Quantitative chemical analysis -
Multinary fiber mixtures
ISSUED ON. APRIL 21, 2017
IMPLEMENTED ON. OCTOBER 01, 2017
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Principle ... 4
4 Reagents and equipment ... 4
5 Humidity conditioning and test atmosphere ... 5
6 Sampling and pretreatment ... 5
7 Analytical procedures and results calculation... 5
8 Test report ... 8
Appendix A (Informative) Example of quantitative chemical analysis of
quaternary blended fabric ... 9
Appendix B (Informative) Example of quantitative chemical analysis of five- component blended fabric ... 17
Appendix C (Informative) Example of quantitative chemical analysis of six- component blended fabric ... 21
Textiles - Quantitative chemical analysis -
Multinary fiber mixtures
1 Scope
This standard specifies the quantitative chemical analysis method for textiles of multinary fiber mixtures.
This standard applies to textiles of quaternary and above fiber mixtures. 2 Normative references
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard.
GB/T 2910 (All parts) Textiles - Quantitative chemical analysis
GB/T 8170 Rules of rounding off for numerical values and expression and
judgement of limiting values
GB 9994 Conventional moisture regains of textiles
3 Principle
For the qualitatively identified multinary fiber mixture textiles, use appropriate pretreatment methods to remove non-fibrous materials, determine the
appropriate dissolution scheme, select the specified chemical reagents, dissolve one or several component fibers in the mixture, calculate the mass percentage of each component fiber from the mass loss after dissolution or the mass of the residual fiber.
4 Reagents and equipment
Use the equipment and reagents as specified in the relevant parts of GB/T 2910. P2 - The net dry mass percentage of the 2nd component, %;
P3 - The net dry mass percentage of the 3rd component, %;
P4 - The net dry mass percentage of the 4th component (insoluble
component), %;
r1 - The dry weight of the residue after the first component is dissolved and removed by the 1st reagent, in grams (g);
r2 - The dry weight of the residue after the first and second components are dissolved and removed by the 1st and 2nd reagent, in grams (g);
r3 - The dry weight of the residue after the first, second and third components are dissolved and removed by the 1st, 2nd and 3rd reagent, in grams (g); d2,1 - The mass loss correction factor of the second component in the first reagent;
d3,1 - The mass loss correction factor of the third component in the first reagent;
d3,2 - The mass loss correction factor of the third component in the second reagent;
d4,1 - The mass loss correction factor of the fourth component in the first reagent;
d4,2 - The mass loss correction factor of the fourth component in the second reagent;
d4,3 - The mass loss correction factor of the fourth component in the third reagent;
m - The net dry mass of the specimen (after pretreatment), in grams (g). A.1.2 Application examples
A.1.2.1 Overview
After qualitative analysis, the fabric is known to be composed of four kinds of fibers. wool, nylon, viscose and cotton. The continuous dissolution scheme is used to continuously remove the three components, and the results are as follows.
1) The dry weight of the specimen after pretreatment, m = 1.1854 g;
2) The dry weight of the specimen (nylon + viscose + cotton) after the first treatment by 1 mol/L alkaline sodium hypochlorite in accordance with the P3A (viscose) = 29.89%, P4A (cotton) = 35.00%.
The composition of the blended fabric is as follows.
Wool 4.4%, nylon 30.7%;
Viscose 29.9%, cotton 35.0%.
A.2 Scheme 2 (other dissolution schemes)
A.2.1 Overview
After qualitative analysis, the fabric is known to be composed of four kinds of fibers. wool, mulberry silk, acrylic fiber and cotton. Two samples are taken, the dissolution scheme is as follows.
a) The first sample
- After the pretreatment, the dry weight of the specimen is m1 = 1.4284 g; - In accordance with the method of GB/T 2910.18, use the 75% sulfuric
acid to dissolve the (mulberry silk + acrylic + cotton), the remaining (wool) dry weight. r (wool) = 0.3721 g.
b) The second sample
- After the pretreatment, the dry weight m2 = 1.4200 g;
- In accordance with the method of GB/T 2910.4, use the 1 mol/L alkaline sodium hypochlorite to dissolve the (wool + silk), the remaining (acrylic + cotton) dry weight. r (acrylic + cotton) = 0.6555 g;
- In accordance with the method of GB/T 2910.12, use the
dimethylformamide to dissolve the acrylic fiber, and the remaining
(cotton) dry weight. r (cotton) = 0.3561 g.
A.2.2 Net dry mass percentage
A.2.2.1 For the first specimen, consider the quaternary mixture as a two- component sample (n = 2), the first component (mulberry + acrylic + cotton), and the second component (wool), to calculate the net dry mass percentage of fiber, then it can get the following results.
P2 (wool) = (0.3721 ?? 0.985)/1.4284 ?? 100 = 25.66%
P1 (mulberry silk + acrylic + cotton) = 100 - 25.66 = 74.34%
A.2.2.2 For the second sample, consider the quaternary mixture as a three- component sample (n = 3), the first component (wool + mulberry silk), the reagent;
d4,1 - The mass loss correction factor of the fourth component in the first reagent;
d4,2 - The mass loss correction factor of the fourth component in the second reagent;
d4,3 - The mass loss correction factor of the fourth component in the third reagent;
d5,1 - The mass loss correction factor of the fifth component in the first reagent;
d5,2 - The mass loss correction factor of the fifth component in the second reagent;
d5,3 - The mass loss correction factor of the fifth component in the third reagent;
d5,4 - The mass loss correction factor of the fifth component in the fourth reagent;
m - The dry mass of the specimen (after pretreatment), in grams (g).
B.2 Application examples
B.2.1 Overview
After qualitative analysis, the fabric is known to be composed of five kinds of fibers. wool, nylon, acrylic, viscose and polyester. The continuous dissolution scheme is used to continuously remove the 4-component, and the results are as follows.
1) After the sample is pretreated, the dry weight is m = 1.2421 g;
2) The dry weight after first treatment of the specimen in accordance with the method of GB/T 2910.4 by 1 mol/L alkaline sodium hypochlorite (nylon +
acrylic + viscose + polyester). r1 = 0.6046 g;
3) The dry weight of the residues above residue (acrylic fiber + viscose fiber + polyester) after the second treatment of the above residue r1 in
accordance with the method of GB/T 2910.7 by formic acid. r2 = 0.4936 g; 4) The dry weight of the residues above residue (viscose fiber + polyester) after the third treatment of the above residue r2 in accordance with the method of GB/T 2910.12 by dimethylformamide. r3 = 0.4033 g;
5) The dry weight of the residues above residue (polyester) after the fourth d2,1 - The mass loss correction factor of the second component in the first reagent;
d3,1 - The mass loss correction factor of the third component in the first reagent;
d3,2 - The mass loss correction factor of the third component in the second reagent;
d4,1 - The mass loss correction factor of the fourth component in the first reagent;
d4,2 - The mass loss correction factor of the fourth component in the second reagent;
d4,3 - The mass loss correction factor of the fourth component in the third reagent;
d5,1 - The mass loss correction factor of the fifth component in the first reagent;
d5,2 - The mass loss correction factor of the fifth component in the second reagent;
d5,3 - The mass loss correction factor of the fifth component in the third reagent;
d5,4 - The mass loss correction factor of the fifth component in the fourth reagent;
d6,1 - The mass loss correction factor of the sixth component in the first reagent;
d6,2 - The mass loss correction factor of the sixth component in the second reagent;
d6,3 - The mass loss correction factor of the sixth component in the third reagent;
d6,4 - The mass loss correction factor of the sixth component in the fourth reagent;
d6,5 - The mass loss correction factor of the sixth component in the fifth reagent;
m - The net dry mass of the specimen (after pretreatment), in grams (g). C.2 Application examples

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