Some standard content:
ICS59.080
Textile Industry Standard of the People's Republic of China
FZ/T73008--2002
Replaces FZ/T73008-1997
Knitted T-shirt
Knitted T-shirt
Issued on September 28, 2002
Implemented on January 1, 2003
Issued by the State Economic and Trade Commission of the People's Republic of China 481
3-2002
FZ/T73008-
This standard was drafted based on ASTM4234--2001 "Standard Performance Specification for Knitted Women's Adult and Children's Dressing Gowns, Nightgowns, Nightgowns, Slips and Underwear Fabrics" and is not equivalent to ASTM4234--2001. This standard replaces FZ/T73008-1997 "Knitted T-shirts". The main changes of this standard compared with FZ/T73008-1997 are as follows: the rules on referenced documents are revised to: distinguish between referenced documents with dates and those without dates (2 of the 1997 edition; 2 of this edition); modify the provisions on product classification (4.1.1 of the 1997 edition; 4.2.1 of this edition); the product size shall adopt the clothing size standard GB/T1335 or the provisions of GB/T6411 (3.2 of this edition); adjust the provisions on surface defect evaluation and simplify the content (4.1.4.4 of the 1997 edition; 4.4.4 of this edition); add fiber content, formaldehyde content, pH value, pilling, distortion rate after washing, color fastness of pigment printing, and abrasion resistance of pigment printing The requirements for color fastness to rubbing and composite color fastness to light and sweat are laid out and the test methods are added (see 4.3 and 5); the shrinkage index in the standard is revised to the washing size change rate, and the index is changed accordingly (4.2.1 of the 1997 edition; 4.3 of this edition);
The color fastness index in the standard is adjusted (4.2.2 of the 1997 edition; 4.3 of this edition); - Appendix A in the standard is no longer an appendix, but a standard clause requirement (7.2 of the 1997 edition, 7 of this edition); the assessment items for shoulder width and shoulder in the specification size deviation are deleted (4.4.4 of the 1997 edition); - The requirements and test methods for dry weight are deleted (4.2.1 and 5.2 of the 1997 edition). This standard is proposed by the China National Textile and Apparel Council. This standard is under the jurisdiction of the Knitwear Technical Committee of the National Technical Committee for Textile Standardization. The drafting units of this standard are: National Knitting Product Quality Supervision and Inspection Center, Jiangsu Hongdou Industrial Co., Ltd., Shanghai Sanqiang Group Co., Ltd., Guangdong Esquel Knitting Co., Ltd., and Guangdong Textile Product Quality Supervision, Inspection and Testing Center. The main drafters of this standard are: Wu Peizhi, Liu Fengrong, Ge Dongying, Zhou Min, Shan Xuelei, and Gu Bofang. This standard was first issued in 1989 and revised for the first time in May 1997. This is the second revision. The previous versions of the standards replaced by this standard are: ZBW63005-89, FZ/T73008—1997. 182
1 Scopebzxz.net
Knitted T-shirts
FZ/T 73008-—2002
This standard specifies the classification, requirements, test methods, judgment rules, marking, packaging, transportation and storage of knitted T-shirt products. This standard is applicable to the identification of the quality of knitted T-shirts. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For all referenced documents with dates, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all referenced documents without dates, the latest versions are applicable to this standard. GB250 Grey Scale for Assessing Color Change (GB250-1995, idtISO105-A02:1993) GB251 Grey Scale for Assessing Staining (GB251--1995, idtISO.105-A03:1993) GB/T1335 (all parts) Clothing Size GB/T2910 Quantitative Chemical Analysis Method for Two-Component Fiber Blended Products of Textiles (GB/T2910--1997, eqvISO1833:1977)
Quantitative Chemical Analysis Method for Three-Component Fiber Blended Products of Textiles (GB/T2911-1997, eqvISO5088: GB/T 2911
GB/T2912.1Determination of formaldehyde in textiles Part 1: Free and hydrolyzed formaldehyde (water extraction method)GB/T3920Textiles-Tests for color fastness-Color fastness to rubbing (GB/T3920--1997, eqvISO105-X12:1993)Textiles-Tests for color fastness-Color fastness to washing: Test I (GB/T3921.1-1997, eqvISO105GB/T 3921.1
C01:1989)
GB/T 3921.3
C03:1989)
Textiles
Color fastness test Color fastness to washing: Test 3 (GB/T3921.3-1997, eqVISO105GB/T3922 Textiles test method for color fastness to perspiration (GB/T3922~-1995, eqVISO105-E04:1994)GB/T4802.1 Textiles - Pilling test - Circular locus methodGB/T4856 Cotton knitted fabric packaging
GB5296.4 Instructions for use of consumer goods
GB/T 6411
Instructions for use of textiles and clothing
Specifications and sizes for cotton knitted underwear
Textiles - Determination of pH value of aqueous extract
GB/T 7573
Rules for rounding off values
GB/T 8170
GB/T8878 Cotton knitted underwear
GB/T14576-1993 Test method for composite color fastness to light and perspiration of textiles GB/T14801 Test method for weft skew and bow of woven and knitted fabrics Textile fiber content identification
FZ/T 01053
FZ/T01057 (all parts) Test method for identification of textile fibers FZ/T73011-[998 Knitted abdominal girdle
FZ/T 73008--2002
3 Product classification
3.1 Knitted T-shirts are divided into two categories according to fabric organization: single-faced fabrics and double-faced fabrics. 3.2 The size of knitted T-shirts shall be in accordance with GB/T1335 or GB/T6411. 4 Requirements
4.1 Requirements are divided into two aspects: intrinsic quality and appearance quality. Intrinsic quality includes fiber content, formaldehyde content, pH value, dimensional change rate after washing, distortion rate after washing, ball bursting strength, pilling, composite color fastness to light and sweat, color fastness to washing, color fastness to sweat stains, color fastness to rubbing, color fastness to washing of paint printing, and color fastness to rubbing of paint printing. Appearance quality includes indicators such as surface defects, specification size deviation, inherent size difference, sewing regulations, etc. 4.2 Grading regulations
4.2.1 The quality grades of knitted T-shirts are divided into superior products, first-class products, and qualified products. 4.2.2 Quality grading of knitted T-shirts: Intrinsic quality is graded by batch (delivery batch), and appearance quality is graded by piece. The two are combined and graded according to the lowest grade.
4.3 Intrinsic quality requirements
4.3.1 See Table 1 for intrinsic quality requirements.
Table 1 Intrinsic quality requirements
Fiber content (net dry content)/%)
Formaldehyde content/(mg/kg)
Dimensional change rate after washing/(%)
Distortion rate after washing/(%)
Ball bursting strength/N
Pilling/grade
Combined color fastness to light and sweat/grade
Color fastness to washing/grade
Color fastness to sweat stains/grade|| tt||Color fastness to rubbing/grade
Color fastness to washing of pigment printing/grade
Color fastness to rubbing of pigment printing/grade
Single-sided fabric
Double-sided fabric
Single-sided fabric
Double-sided fabric
Superior product
First-class product
According to the provisions of FZ/T01053
4.0～7.5
-3. 0~+1. 5
-3.0~+1. 5
-3. 0~+1. 5
3. 0~+1. 5
Qualified product
-5. 0~+1, 5
— 5. 5~~+1. 5
5. 5~+1. 5
6. 0～+1. 5
2--3 (dark color 2)
4.3.2 The ball bursting strength index of products with jacquard and tuck structure may not be assessed (referring to sliver and hollow fabrics). 4.3.3 When the labeled content of a fiber does not exceed 10%, its content shall not be less than 70% of its own content. 484
Allows two indexes
half a grade lower than the first-class product
tt||4.3.4 Brushed and raised products are not subject to pilling assessment. 4.3.5 Elastic products are not subject to lateral assessment of dimensional change rate after washing. 4.3.6 Wet rubbing color fastness shall not be lower than Grade 2. 4.3.7 For each index of intrinsic quality, the lowest rating of the test result shall be used as the basis for the rating of the batch of products. 4.4 Appearance quality grading regulations
FZ/T73008—2002
4.4.1 Appearance quality rating is determined by the unit of the piece, according to the rating of surface defects, specification size deviation, inherent size difference, and sewing regulations. 4.4.2 When appearance defects of different grades are found on a product, the lowest grade shall be used for rating. 4.4.3 Only two limit surface defects of the same grade are allowed on a product, and if more than two limit surface defects are found, the product shall be downgraded by one grade. 4.4.4 Surface defect rating regulations are shown in Table 2. Table 2 Surface defect evaluation and grading regulations
Defect name
Texture skewness (horizontally not more than)Color stripes
Sewing oily lines
Bottom edge missing stitches
Bottom edge visible stitches
Bright thread zigzag height
Superior products
First-class products
4 levels between main materials
3-4 levels between main and auxiliary materials
Light 1cm3 or 2cm1, 1 stitch and 3 places on each side of the collar, lapel and pocket parts are not allowed, but not continuous, three-line overlock at the saddle seam shall not exceed 3 stitches, four-line and five-line overlock shall not exceed 4 stitches
No more than 0.15cm, 0.25cm at the saddle seam, single-side length shall not exceed 3cm
Note 1: Defects not listed in the table shall be subject to the surface defect evaluation and grading regulations of GB/T8878. Note 2: The main part refers to the two-thirds of the front and sleeves of the T-shirt. 4.4.5 The measurement parts and regulations of the finished garments are shown in Figure 1 and Table 3. 1 - Garment length,
Chest width:
3-Shoulder:
Grade length:
1/2 collar length;
Single shoulder width.
Figure 1 Measurement parts
Qualified products
3-4 levels between main materials
2-3 levels between main and auxiliary materials
Light 20cm, dark 10cm
Exceeding the requirements of first-class products
FZ/T73008--2002
Note: The measurement accuracy of each part is 0.1cm.
Specification size deviation is shown in Table 4.
Table 3 Measurement requirements for ready-made garments
1/2 collar length
Single shoulder width
Children, middle children
Excellent, first-class products
Shirt collar
Not assessed
For size differences, see Table 5.
Length of garment is not
Front, back and left and right waist seams
Sleeve width, hanging shoulder is not
Left and right shoulder width is not narrow~
Sleeve length is not
Chest width is not uniform
Collar tip is not—
4.5 Sewing regulations
Top and bottom are not uniform (pagoda shape)
Front and back widths are not uniform
Lined collar
Flat knitting collar
Measuring method
Measure from the highest point of the shoulder seam to the bottom edge
From the intersection of the sleeve seam and the rib seam down 2 cm horizontally measure the straight line distance from shoulder to armpit at the seam of the body and sleeves from the intersection of the shoulder seam and the sleeve seam to the cuff edge. Fold the collar in half and measure horizontally from the inside. Measure the upper opening of the standing collar from the highest point of the shoulder seam to the intersection of the shoulder seam and the sleeve seam. Specifications and size deviations
Qualified products
Not assessed
Superior products
Original size differences
Superior products
4.5.1Superior products, first-class products and qualified products shall be implemented in accordance with these regulations. 4.5.2 The shoulder joint shall be lined with straight strips of the original material, gauze or sewn with a four-thread or five-thread overlock machine. 4.5.3 For all seams made with a four-thread or five-thread overlock machine, the cuffs shall be reinforced with a bartack or flat seam. 486
-grade
First-grade
Unit: cm
Qualified
Unit: cm
Qualified
FZ/T 73008 - -2002
4.5.4 The collar is correct, the placket is straight, the sleeves and bottom edges are of the same width, ironed flat, the seams are ironed out, the thread ends are trimmed, and there is no debris. 4.5.5 See Table 6 for the provisions of stitch density.
Table 6 Stitch density provisions
The number of stitches
Not less than
Flat double needle
The stitch density is measured at the middle of a sewing process. 4.5.6
The stitch density of the buttonhole machine is measured by angle, 8 to 9 stitches per centimeter, and 2 to 3 stitches are tied at each end. 4.5.8 The stitch density of buttonholes shall not be less than 5 stitches per buttonhole. The unit is stitch count/2cm
Overlock hemming
4.5.9 Overlock hemming density shall not be less than 0.4cm for three threads, 0.5cm for four threads, and 0.7cm for five threads. 4.5.10 If the stitch density is lower than the specified value and the short stitch skipping of a double-needle interlock sewing machine is scattered in two places, it shall be counted as 0.5 pieces of missed inspection. For the skipping of a flat sewing machine, one stitch and two places are allowed for each finished product, but they shall not be continuous within 5cm. If they exceed this, it shall be counted as missed inspection. 4.5.11 For products with color stripes, the placket and pockets shall be aligned. 5 Test method
5.1 Sampling quantity
5.1.1 For appearance quality, 1% to 3% shall be randomly sampled according to the batch type, color, specification and size, but shall not be less than 20 pieces. 5.1.2 Inner quality: 4 pieces are randomly sampled according to the batch type, color, specification and size. If the number is insufficient, the number of pieces can be increased. 5.2 Appearance quality inspection conditions
5.2.1- Generally, light inspection is adopted, using a 40W green light or fluorescent lamp, with a lampshade on top, and the vertical distance between the lampshade and the center of the inspection table is 80 cm±5 cm.
5.2.2 If natural light is used indoors, the direction of the light source is from the north to the upper left (or right) corner, and the sunlight cannot directly shine on the product. 5.2.3 During the inspection, the product should be spread flat on the inspection table, and a layer of white cloth should be spread on the table. The inspection personnel should look directly at the surface of the flat product, and the distance between the sunlight and the product should be more than 35 cm. 5.3 Sample preparation and test conditions
5.3.1 The sample should not have defects that affect the test results. 5.3.2 Sampling is carried out at different parts of the product.
5.3.3 The test of ball bursting strength and washing dimensional change rate requires the sample to be unfolded and laid flat at room temperature for 20 hours, and then placed under laboratory temperature of (20±2) (, relative humidity of (65±3)% for 4 hours before testing. 5.4 Test items
5.4.1 Fiber content test
Perform according to GB/T2910, GB/T2911, FZ/T01057, FZ/T73011. 5.4.2 Formaldehyde content test
Perform according to GB/T2912.1. Among them, printing, etc. Special treatment product test for special treatment parts such as printing. 5.4.3 pH value test
Perform according to GB/T7573.
5.4.4 Washing size change rate
Perform according to GB/T8878.
5.4.5 Ball bursting strength test
Perform according to GB/T8878.
5.4.6 Pilling test
Perform according to GB/T4802.1. The test adopts a pressure of 780cN, a pilling number of 0 times, a pilling number of 600 times, and a rating of needle Fabric pilling sample (1).
FZ/T73008--2002
5.4.7 Test for combined color fastness to light and perspiration
Perform according to the provisions of Method B in GB/T14576--1993. 5.4.8 Test method for distortion rate after washing
5.4.8.1 Spread the garment after washing size change rate on a smooth table, pat it flat with your hands, and measure it. 5.4.8.2 Measure the side of each garment with the largest degree of distortion, and take the average value of the distortion rate of three garments as the calculation result. 5.4.8.3 The twisted part of the garment is shown in Figure 2.
The distance between the point perpendicular to the bottom edge at the intersection of the rib seam and the sleeve ridge and the end point after twisting;-----The distance perpendicular to the bottom edge at the intersection of the rib seam and the sleeve ridge. Figure 2 Twisted part of the garment
5.4.8.4 The calculation method of the twist rate is shown in formula (1) (the final result is accurate to 0.1): F
Where:
Twist rate, %.
5.4.9 Washing color fastness test
Perform according to GB/T3921.3. Nylon products shall be carried out according to GB/T3921.1. 5.4.10 Color fastness to perspiration test
Perform according to GB/T3922.
5.4.11 Color fastness to rubbing test
Perform according to GB/T3920, only vertical direction. 5.4.12 Color fastness rating
Evaluate according to GB250 and GB251.
5.4.13 Grain skew test
Perform according to GB/T14801.
6 Judgment rules
6.1 Appearance quality
Calculate the non-conforming product rate according to the variety, color, specification and size. If the non-conforming product rate is within 5.0% or less, the batch of products shall be judged as qualified. If the non-conforming product rate is above 5.0%, the batch of products shall be judged as unqualified. Errors in the inner packaging mark shall be calculated by piece; no outer packaging errors are allowed. 6.2 Intrinsic quality
6.2.1 The average value of all the samples for the dimensional change after washing is taken as the test result, and the average is qualified. If there are both shrinkage and reverse expansion test results, the arithmetic average value of the two shrinkage (or reverse expansion) samples is taken as the test result. If qualified, the batch of products is judged to be qualified, and if unqualified, the batch of products is judged to be unqualified.
FZ/T73008-2002
6.2.2 For the test results of the ball bursting strength and the distortion rate after washing, the arithmetic average value of all the tested samples is taken. If qualified, the batch is judged to be qualified. If unqualified, the batch is judged to be unqualified.
6.2.3 If the fiber content, formaldehyde content, and pH value test results are qualified, the batch of products is judged to be qualified, and if unqualified, the batch is judged to be unqualified. 6.2.4 If the average value of the pilling test results meets the requirements of this standard, the batch of products is judged to be qualified, and if unqualified, the batch is judged to be unqualified. 6.2.5 If the test results of composite color fastness to light and sweat, color fastness to washing, color fastness to perspiration, color fastness to rubbing, color fastness to washing of paint printing, and color fastness to rubbing of paint printing are qualified, the batch of products shall be judged as qualified. If they are unqualified, the batch shall be judged as unqualified by color. 6.2.6 Products that seriously affect the wearing performance are not allowed. 6.3 Re-inspection
6.3.1 If any party has objections to the inspection results during the inspection, within the specified period, all the items with objections may be requested for re-inspection. 6.3.2 When requesting re-inspection, all the quantities requested for re-inspection must be retained. 6.3.3 The inspection quantity during re-inspection shall be twice the inspection quantity during acceptance. The re-inspection results shall be handled in accordance with the provisions of 6.1 to 6.2 of this standard, and the re-inspection results shall prevail.
7 Marking, packaging, transportation and storage
7.1 Product marking shall be carried out in accordance with GB5296.4. 7.2 Packaging shall be carried out in accordance with GB/T4856.
7.3 Products should be packed and transported in a moisture-proof, fire-proof and pollution-proof manner. 7.4 Products should be stored in a cool, ventilated, dry and clean warehouse to prevent storage and mildew. 489
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