阅读说明：本技术 一种合成纤维弹力丝织物的检测方法 (Detection method of synthetic fiber stretch yarn fabric ) 是由 朱子龙 于立莹 曾双穗 卢坤 骆倩倩 于 2020-05-29 设计创作，主要内容包括：本发明公开了一种合成纤维弹力丝织物的检测方法,包括内在质量检测和外观质量检测,S1、内在质量检测,内在质量检测包括密度偏差率、质量偏差率、纤维含量允差、断裂强力、撕破强力、纰裂程度、色牢度、水洗尺寸变化率、拉伸弹性；S2、外观质量检测；S3、记录数据,将内在质量检测和外观质量检测出来的各个数据记录下来；S4、校队分等规定表；S5、包装与标志,按FZ/T40007执行。本发明具有检测拉伸弹性尺寸的作用,并且还具有拉伸性能这一指标要求。(The invention discloses a detection method of a synthetic fiber stretch yarn fabric, which comprises the following steps of detecting internal quality and appearance quality, and S1, detecting the internal quality, wherein the internal quality comprises density deviation rate, mass deviation rate, fiber content tolerance, breaking strength, tearing strength, combing degree, color fastness, washing size change rate and tensile elasticity; s2, detecting appearance quality; s3, recording data, and recording each data detected by the internal quality detection and the appearance quality detection; s4, a regulation table is divided into a school team and the like; s5, packaging and marking, which are executed according to FZ/T40007. The invention has the function of detecting the tensile elastic dimension and also has the index requirement of tensile property.)

1. The detection method of the synthetic fiber stretch yarn fabric comprises the steps of internal quality detection and appearance quality detection, and is characterized in that the internal quality detection comprises a density deviation rate, a mass deviation rate, fiber content tolerance, breaking strength, tearing strength, combing degree, color fastness, washing size change rate and tensile elasticity; the appearance quality detection comprises amplitude variation rate, color difference (compared with a standard sample) and appearance defects; the detection method of the synthetic fiber stretch yarn fabric comprises the following steps: s1, detecting internal quality, namely detecting the density deviation rate, the mass deviation rate, the fiber content tolerance, the breaking strength, the tearing strength, the combing degree, the color fastness, the washing size change rate and the tensile elasticity one by one according to the national standard; s2, detecting appearance quality, namely detecting the amplitude variation rate, the color difference and the appearance defects one by one according to national standards; s3, recording data, and recording each data detected by the internal quality detection and the appearance quality detection; s4, a regulation table such as a calibration table, wherein each data detected by the internal quality and the data in the regulation table such as the internal quality are calibrated one by one to determine the equal division of each data of the internal quality, and then each data detected by the appearance quality and the data in the regulation table such as the appearance quality are calibrated one by one to determine the equal division of each data of the appearance quality; s5, packaging and marking, which are executed according to FZ/T40007.

2. The method as claimed in claim 1, wherein the quality of the synthetic fiber stretch yarn fabric is evaluated in units of a piece, the intrinsic quality and the appearance quality are evaluated in units of a piece, and the evaluation is classified into a superior product, a first grade product, a second grade product and an off-grade product.

3. The method of claim 2, wherein in step S1, the density deviation ratio test method is performed according to GB/T4668-1995, the warp density is measured according to method C, the weft density is measured according to method E, the arbitration test is performed according to method a, each sample is preferably measured at five weft densities at least 3m away from both ends, each two measuring points are preferably spaced at intervals of 2m or more, the arithmetic mean of the measured values is calculated, and the number of measured values is reduced to 0.1 per 10cm according to GB/T8170; the quality deviation rate test method is executed according to method 5 of 6.7 in GB/T4669-2008, and the arbitration check is executed according to method 3; the fiber content tolerance test method is carried out according to GB/T2910 (all parts), FZ/T01026, FZ/T01057 (all parts) and FZ/T01095; the breaking strength test method is carried out according to GB/T3923.1; the breaking strength test method is executed according to GB/T3917.2; the combing crack degree test method is executed according to GB/T13772.2, the width size of the sample adopts 75mm, and the color fastness test method comprises the following steps: the color fastness to washing is carried out according to GB/T3921-2008, and a test method A is adopted; the fastness to water is carried out according to GB/T5713; the color fastness to perspiration is carried out in accordance with GB/T3922; the rubbing color fastness is implemented according to GB/T3920; the color fastness to dry cleaning is carried out according to GB/T5711; the light fastness is carried out according to method 3 of GB/T8427-2008; the washing size change rate test method is carried out according to a washing program 5A in GB/T8628 and GB/T8629-2001, and a drying program A is carried out according to GB/T8630; the tensile elasticity test method is executed according to FZ/T01034-2008, the constant force value is 25N, and the test speed is 500 mm/min.

4. The method for detecting a synthetic fiber stretch yarn fabric according to claim 3, wherein in step S2, the color difference test method adopts a D65 standard light source or north natural light, the illuminance is not lower than 600lx, the measured part of the sample is consistent in the longitudinal and latitudinal directions, the human light is about 45 degrees to the surface of the sample, the sight line of an inspector is approximately vertical to the surface of the sample, the distance is about 60cm for visual inspection, and the comparison and the rating with a GB/T250 standard sample card are carried out; the breadth test method is carried out according to GB/T4666; the appearance defect test method adopts a warp-wise tester or a weft-wise bedplate for testing, and the arbitration test adopts the warp-wise tester for testing.

5. The method as claimed in claim 4, wherein in the appearance defect test, when the light source is a fluorescent lamp, the average illumination of the table top is 600 lx-700 lx, the ambient light source is controlled below 150lx, the weft test can be performed by using natural northern light, the average illumination is 320 lx-600 lx, when the warp test machine is used, the test speed is 15m/min ± 5m/min, the test speed of the weft platen is 15 pages/min, the distance between the eye of the tester and the center of the fabric surface is about 60 cm-80 cm, the appearance defect test is based on the front side of the fabric, and the appearance defect test should be scored when the back defect affects the front side.

6. The method of detecting a synthetic stretch yarn fabric according to claim 5, wherein the appearance defect score indicates: a) the scoring of the appearance defects adopts finite cumulative scoring; b) the length of the appearance defects is measured by the radial direction or the latitudinal direction maximum vector; c) the same color difference is not lower than 4 in GB/T250, is lower than 4, is 1m and has an internal score of 4; d) the cumulative score is 4 points at most in radial 1m, and the score is 4 points when the cumulative score exceeds 4 points; e) the limit of common degree of 'warp willow' and the like is a second-class product, and the limit of obvious degree of 'warp willow' and other external products of full matching continuity defect positioning and the like; f) serious continuous defects are deducted by 4 points per meter, and the products are reduced to equal grade products when the number of the defects exceeds 4 meters; g) the lumpy defects caused by spandex damage were rated 2cm and below, 2 media and 4 above.

7. A method according to claim 6, characterized in that the iso-score of appearance defects is calculated as c = q ÷ (l × w) × 100, c being the iso-score of appearance defects of each piece of fabric in units of minutes per hundred square meters (minutes/100 m); q is the actually measured fraction of the appearance defects of each fabric, and the unit is a score; l is lower case L, length of the piece to be detected, and unit is meter (m); w is the effective width in meters (m).

Technical Field

The invention relates to the field of silk fabric detection, in particular to a detection method of synthetic fiber stretch silk fabric.

Background

Similar standard GB/T17253-2018 synthetic filament fabric; FZ/T43012-2013 nylon yarn fabric; the FZ/T polyester filament yarn simulation silk fabric. But there is no corresponding industry standard for synthetic fiber stretch yarn fabrics. Synthetic fiber stretch yarn fabrics have begun to appear on the market in about 2000, and are widely used in garments due to their good stretch properties. But later, the product has uneven quality, so that the quality is improved for standardizing the market. The FZ/T43037-2016 synthetic fiber stretch yarn fabric mainly refers to a yarn fabric which is woven by synthetic fiber filaments such as terylene and chinlon and spandex-coated yarns and has good elasticity. The above criteria increase the tensile performance requirement, while similar criteria, also have no relevant performance requirements.

Disclosure of Invention

The invention aims to provide a method for detecting synthetic fiber stretch yarn fabric, which has the advantage of detecting the standard of tensile property.

The technical purpose of the invention is realized by the following technical scheme:

a detection method of a synthetic fiber stretch yarn fabric comprises internal quality detection and appearance quality detection, wherein the internal quality detection comprises density deviation rate, mass deviation rate, fiber content tolerance, breaking strength, tearing strength, stitch slippage degree, color fastness, washing size change rate and tensile elasticity; the appearance quality detection comprises amplitude variation rate, color difference (compared with a standard sample) and appearance defects; the detection method of the synthetic fiber stretch yarn fabric comprises the following steps: s1, detecting internal quality, namely detecting the density deviation rate, the mass deviation rate, the fiber content tolerance, the breaking strength, the tearing strength, the combing degree, the color fastness, the washing size change rate and the tensile elasticity one by one according to the national standard; s2, detecting appearance quality, namely detecting the amplitude variation rate, the color difference and the appearance defects one by one according to national standards; s3, recording data, and recording each data detected by the internal quality detection and the appearance quality detection; s4, a regulation table such as a calibration table, wherein each data detected by the internal quality and the data in the regulation table such as the internal quality are calibrated one by one to determine the equal division of each data of the internal quality, and then each data detected by the appearance quality and the data in the regulation table such as the appearance quality are calibrated one by one to determine the equal division of each data of the appearance quality; s5, packaging and marking, which are executed according to FZ/T40007.

Preferably, in step S1, the density deviation ratio test method is performed according to GB/T4668-1995, the warp density is measured by method C, the weft density is measured by method E, the arbitration test is performed by method A, each sample is preferably measured at least 3m away from both ends, each two measurements are preferably spaced more than 2m apart, the arithmetic mean of the measured values is calculated, and the calculation is modified to 0.1/10 cm according to GB/T8170; the quality deviation rate test method is executed according to method 5 of 6.7 in GB/T4669-2008, and the arbitration check is executed according to method 3; the fiber content tolerance test method is carried out according to GB/T2910 (all parts), FZ/T01026, FZ/T01057 (all parts) and FZ/T01095; the breaking strength test method is carried out according to GB/T3923.1; the breaking strength test method is executed according to GB/T3917.2; executing the combing degree test method according to GB/T13772.2, wherein the width size of the sample is 75 mm; color fastness test method: the color fastness to washing is carried out according to GB/T3921-2008; the fastness to water is carried out according to GB/T5713; the color fastness to perspiration is carried out in accordance with GB/T3922; the rubbing color fastness is implemented according to GB/T3920; the color fastness to dry cleaning is carried out according to GB/T5711; the light fastness is carried out according to method 3 of GB/T8427-2008; the washing size change rate test method is carried out according to a washing program 5A in GB/T8628 and GB/T8629-2001, and a drying program A is carried out according to GB/T8630; the tensile elasticity test method is executed according to FZ/T01034-2008, the constant force value is 25N, and the test speed is 500 mm/min.

Preferably, the evaluation of the quality of the synthetic fiber stretch yarn fabric is in the unit of a piece, and the internal quality test and the external quality test are evaluated in the unit of a piece, and the evaluation is classified into a superior product, a first-class product, a second-class product and an off-class product.

Preferably, in step S2, the color difference test method uses a D65 standard light source or north natural light, the illuminance is not lower than 600lx, the measured part of the sample should be consistent in longitude and latitude directions, the incident light makes an angle of about 45 degrees with the surface of the sample, the sight line of the inspector is approximately perpendicular to the surface of the sample, the distance is about 60cm for visual inspection, and the color difference test method is compared with a GB/T250 standard sample card for rating; the breadth test method is carried out according to GB/T4666; the appearance defect test method adopts a warp-wise tester or a weft-wise bedplate for testing, and the arbitration test adopts the warp-wise tester for testing.

Preferably, in the appearance defect test, when a sunlight fluorescent lamp is used as a light source, the average illumination of a table top is 600 lx-700 lx, the environment light source is controlled below 150lx, natural northern light can be adopted for weft inspection, the average illumination is 320 lx-600 lx, when a warp inspection machine is adopted for inspection, the inspection speed is 15m/min +/-5 m/min, the inspection speed of a weft bedplate is 15 pages/min, the distance between eyes of an inspector and the center of the surface of the fabric is about 60 cm-80 cm, the appearance defect inspection is based on the front side of the fabric, and the appearance defect inspection is also graded when the back side defect affects the front side.

Preferably, the appearance defect score specification: a) the scoring of the appearance defects adopts finite cumulative scoring; b) the length of the appearance defects is measured by the radial direction or the latitudinal direction maximum vector; c) the same color difference is not lower than 4 in GB/T250, is lower than 4, is 1m and has an internal score of 4; d) the cumulative score is 4 points at most in radial 1m, and the score is 4 points when the cumulative score exceeds 4 points; e) the limit of common degree of 'warp willow' and the like is a second-class product, and the limit of obvious degree of 'warp willow' and other external products of full matching continuity defect positioning and the like; f) serious continuous defects are deducted by 4 points per meter, and the products are reduced to equal grade products when the number of the defects exceeds 4 meters; g) the lumpy defects caused by spandex damage were rated 2cm and below, 2 media and 4 above.

Preferably, the score of appearance defect etc. is calculated as c = q ÷ (l × w) × 100, c is the score of appearance defect etc. per fabric, in units of per hundred square meters (score/100 m); q is the actually measured fraction of the appearance defects of each fabric, and the unit is a score; l is lower case L, length of the piece to be detected, and unit is meter (m); w is the effective width in meters (m).

Compared with the indexes GB/T17253-2018 synthetic fiber silk fabric, FZ/T43012-2013 nylon silk fabric, FZ/T polyester filament simulation silk fabric and FZ/T43037-2016 synthetic fiber stretch silk fabric, the invention has one more item for detecting the stretching elastic size and also has the index requirement of stretching performance, and finally the synthetic fiber stretch silk fabric has good elasticity.

Drawings

FIG. 1 is a flow chart of an embodiment;

FIG. 2 is a table of intrinsic mass fractions for the examples;

fig. 3 is a table for specifying appearance quality and the like of the embodiment.

Detailed Description

The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention.

As shown in fig. 1 to 3, a method for detecting a synthetic fiber stretch yarn fabric includes an intrinsic quality detection and an appearance quality detection, wherein the intrinsic quality detection includes a density deviation ratio, a mass deviation ratio, a fiber content tolerance, a breaking strength, a tearing strength, a combing degree, a color fastness, a washing size change ratio and a tensile elasticity; appearance quality tests include amplitude variation rate, color difference (compared to standard), appearance defects. The quality evaluation of the synthetic fiber stretch yarn fabric takes a match as a unit, and the internal quality detection and the external quality detection are evaluated according to the match evaluation, and the evaluation grades are divided into a superior product, a first-class product, a second-class product and an external product.

The detection method of the synthetic fiber stretch yarn fabric comprises the following steps:

s1, carrying out internal quality detection and density deviation rate test according to GB/T4668-1995, carrying out warp density by a method C and weft density by a method E, carrying out arbitration test by a method A, preferably measuring five weft densities at positions at least 3m away from two ends of each sample, preferably spacing more than 2m between every two measuring positions, calculating the arithmetic mean value of the measured values at each position, and modifying the arithmetic mean value to 0.1/10 cm according to GB/T8170;

the quality deviation rate test method is executed according to method 5 of 6.7 in GB/T4669-2008, and the arbitration check is executed according to method 3;

the fiber content tolerance test method is carried out according to GB/T2910 (all parts), FZ/T01026, FZ/T01057 (all parts) and FZ/T01095;

the breaking strength test method is carried out according to GB/T3923.1;

the breaking strength test method is executed according to GB/T3917.2;

executing the combing crack degree test method according to GB/T13772.2;

the width of a sample in color fastness is 75 mm; color fastness test method: the color fastness to washing is carried out according to GB/T3921-2008; the fastness to water is carried out according to GB/T5713; the color fastness to perspiration is carried out in accordance with GB/T3922; the rubbing color fastness is implemented according to GB/T3920; the color fastness to dry cleaning is carried out according to GB/T5711; the light fastness is carried out according to method 3 of GB/T8427-2008;

the washing size change rate test method is carried out according to a washing program 5A in GB/T8628 and GB/T8629-2001, and a drying program A is carried out according to GB/T8630;

the tensile elasticity test method is executed according to FZ/T01034-2008, the constant force value is 25N, and the test speed is 500 mm/min.

S2, detecting appearance quality, and comparing and grading the color difference test method with a GB/T250 standard sample card, wherein a D65 standard light source or north natural light is adopted, the illumination is not lower than 600lx, the measured part of the sample is consistent in the longitudinal and latitudinal directions, the angle between the incident light and the surface of the sample is about 45 degrees, the sight line of an inspector is approximately vertical to the surface of the sample, the distance is about 60cm for visual inspection;

the breadth test method is carried out according to GB/T4666;

the appearance defect test method adopts a warp-wise tester or a weft-wise bedplate for testing, and the arbitration test adopts the warp-wise tester for testing.

In an appearance defect test, when a light source adopts a sunlight fluorescent lamp, the average illumination of a table top is 600 lx-700 lx, an environment light source is controlled below 150lx, natural northern light can be adopted for weft direction test, the average illumination is 320 lx-600 lx, when a warp direction tester is used for testing, the testing speed is 15m/min +/-5 m/min, the testing speed of a weft direction table plate is 15 pages/min, the distance between eyes of a tester and the center of the surface of the fabric is about 60 cm-80 cm, the appearance defect test is based on the front side of the fabric, and the appearance defect test also needs to be scored when the back side defect affects the front side.

Appearance defect score specification: a) the scoring of the appearance defects adopts finite cumulative scoring; b) the length of the appearance defects is measured by the radial direction or the latitudinal direction maximum vector; c) the same color difference is not lower than 4 in GB/T250, is lower than 4, is 1m and has an internal score of 4; d) the cumulative score is 4 points at most in radial 1m, and the score is 4 points when the cumulative score exceeds 4 points; e) the limit of common degree of 'warp willow' and the like is a second-class product, and the limit of obvious degree of 'warp willow' and other external products of full matching continuity defect positioning and the like; f) serious continuous defects are deducted by 4 points per meter, and the products are reduced to equal grade products when the number of the defects exceeds 4 meters; g) the lumpy defects caused by spandex damage were rated 2cm and below, 2 media and 4 above.

Calculating the equal scores of appearance defects c = q ÷ (l × w) × 100, wherein c is the equal score of appearance defects of each piece of fabric, and the unit is each hundred square meters (minutes/100 m); q is the actually measured fraction of the appearance defects of each fabric, and the unit is a score; l is lower case L, length of the piece to be detected, and unit is meter (m); w is the effective width in meters (m).

And S3, recording data, and recording the data obtained by the internal quality detection and the appearance quality detection.

And S4, a calibration table such as a calibration table, which calibrates each data detected by the internal quality with the data in the calibration table such as the internal quality one by one to determine the equal division of each data of the internal quality, and then calibrates each data detected by the appearance quality with the data in the calibration table such as the appearance quality one by one to determine the equal division of each data of the appearance quality.

S5, packaging and marking, which are executed according to FZ/T40007.

Compared with the standard GB/T17253-2018 synthetic fiber silk fabric, the FZ/T43012-2013 nylon silk fabric, the FZ/T polyester filament simulation silk fabric and the FZ/T43037-2016 synthetic fiber stretch silk fabric, the invention has one more item for detecting the stretching elastic size and has the index requirement of stretching performance, and finally the synthetic fiber stretch silk fabric has good elasticity.