Group Standards of the People's Republic of China CN / TUANTI
Latest
T/HOMETEX 32-2022
Scope
4.3.1 Safety performance 4.3.1.1 The basic safety technical requirements of the product shall comply with the provisions of GB18401, and infant and children's products shall comply with the provisions of GB31701. 4.3.1.2 The burning performance of fabrics used in public places shall comply with relevant national standards. 4.3.2 Intrinsic quality The intrinsic quality requirements of the product are shown in Table 1, Table 2, and Table 3. Table 1 Intrinsic quality requirements for seat fabrics Item Superior products First-class products Qualified products Fiber content deviation/% In line with the provisions of GB/T29862 Breaking strength a/N ≥400 350 300 Tear strength a/N ≥35 30 25 Bursting strength b/kPa ≥500 350 250 Yarn anti-slip c (fixed load 180N)/mm ≤356 Abrasion resistance/rotation ≥25000 12000 6000 Pilling c/grade ≥4-543-4 Dimensional change rate after washing d/% Woven fabrics +2.0～-2.0 +2.0～-3.0 +2.0～-4.0 Knitted fabrics +2.0～-3.0 +2.0～-4.0 +2.0～-5.0 Dimensional change rate after dry cleaning e/% Woven fabrics +2.0～-2.0 +2.0～-2.5 +2.0～-3.0 Knitted fabrics +2.0～-2.5+2.0～-3.0+2.0～-3.5 Color fastness/grade≥ Dry cleaning resistance (discoloration/staining) 4-5/44/3-43-4/3 Washing resistance (discoloration/staining) 4-5/44/3-44/3 Water resistance (discoloration/staining) 4/3-44/3-44/3 Sweat resistance (discoloration/staining) 4/43-4/3-43/3 Dry friction resistance 43-43-4 Wet friction resistance 4-544 (dark color f3-4) Light resistance 544 a Breaking strength and tearing strength are not tested on knitted fabrics. b Bursting strength is only tested on knitted fabrics. c Yarn anti-slippage and pilling are only tested on fabric sofas, sofa covers and chair covers. d. The dimensional change rate and color fastness to washing are only tested for water-washable products. e. The dimensional change rate and color fastness to dry cleaning are only tested for dry-cleaning products. f. The color change is greater than 1/1 of the standard depth according to the gray sample card. T/HOMETEX32—2022 3 Table 2 Intrinsic quality requirements for bedding fabrics Item Superior product First-class product Qualified product Fiber content deviation/% In line with GB/T29862 Breaking strength a/N ≥400 350 300 Tear strength a/N ≥35 30 25 Bursting strength b/kPa ≥500 350 250 Yarn anti-slip (fixed load 180N)/mm ≤356 Pilling/grade ≥4-54 3-4 Dimensional change rate after washing c/% Woven fabrics +2.0～-2.0 +2.0～-3.0 +2.0～-4.0 Knitted fabrics +2.0～-3.0 +2.0～-4.0 +2.0～-5.0 Dimensional change rate after dry cleaning d/% Woven fabrics +2.0～-2.0 +2.0～-2.5 +2.0～-3.0 Knitted fabrics +2.0～-2.5+2.0～-3.0+2.0～-3.5 Color fastness/grade≥Dry cleaning resistance (discoloration/staining) 4-5/44/3-43-4/3 Washing resistance (discoloration/staining) 4-5/44/3-44/3 Water resistance (discoloration/staining) 4/3-44/3-44/3 Sweat resistance (discoloration/staining) 4/43-4/3-43/3 Dry friction resistance 43-43-4 Wet friction resistance 4.544 (dark e3-4) Light resistance 544 a Breaking strength and tearing strength are not tested on knitted fabrics. b Bursting strength is only tested on knitted fabrics. c Washing dimensional change rate and washing color fastness are only tested on washable products. d Dry cleaning dimensional change rate and dry cleaning color fastness are only tested on dry cleaning products. e According to the gray sample card for discoloration, the color greater than 1/1 standard depth is dark. Table 3 Intrinsic quality requirements for fabrics for hanging and covering purposes Item Superior products First-class products Qualified products Fiber content deviation/% In line with the provisions of GB/T29862 Breaking strength a/N ≥400 350 300 Tear strength a/N ≥35 30 25 Bursting strength b/kPa ≥500 350 250 Yarn anti-slip (fixed load 180N)/mm ≤356 Pilling/grade ≥4-543-4 Dimensional change rate after washing c/% Woven fabrics +2.0～-2.0 +2.0～-3.0 +2.0～-4.0 Knitted fabrics +2.0～-3.0 +2.0～-4.0 +2.0～-5.0 Dimensional change rate after dry cleaning d/% Woven fabrics +2.0～-2.0 +2.0～-2.5 +2.0～-3.0 Knitted fabrics +2.0～-2.5+2.0～-3.0+2.0～-3.5 Color fastness/grade≥ Dry cleaning resistance (discoloration/staining) 4-5/44/3-43-4/3 Washing resistance (discoloration/staining) 4-5/44/3-44/3 Water resistance (discoloration/staining) 4/3-44/3-44/3 Sweat resistance (discoloration/staining) 4/43-4/3-43/3 Dry friction resistance 43-43-4 Wet friction resistance 4-544 (dark e3-4) Light resistance 544 a Breaking strength and tearing strength are not applicable to knitted fabrics. The breaking strength of transparent thin fabrics and mesh fabrics is allowed to be as low as 90N. b Bursting strength is only tested on knitted fabrics. c Washing dimensional change rate and washing color fastness are only tested on washable products. d Dry-cleaning dimensional change rate and dry-cleaning color fastness are only assessed for dry-cleaning products. e According to the gray sample card for discoloration, the color greater than 1/1 of the standard depth is dark. T/HOMETEX32—2022 4 4.3.3 Appearance quality The appearance quality of the product shall be in accordance with the requirements of Table 4. Among them, the scoring of local defects shall be in accordance with the provisions of Table 5. It shall be counted as 1 point within the defect limit, and the excess part shall be separately measured and accumulated. The strip defects with a width of more than 1cm are divided into strips with a limit of 1cm for continuous scoring. When there are different defects in 1 place, the defect with the higher score shall be counted; defects within 1.5cm from the edge shall be scored by half according to Table 5; concentrated defects and continuous defects shall be scored at most 4 points per meter; superior and first-class products are not allowed to have damage defects rated as 4 points. Table 4 Appearance quality requirements Items Superior products First-class products Qualified products Color difference/grade ≥ Same piece/piece 4-54-54 Same batch 443-4 Comparison with confirmed sample 43-43-4 Weft bias of woven fabrics/%≤2.03.54.0 Grain skewness of knitted fabrics/%≤4.05.06.0 Check bias, pattern bias/%≤2.02.52.5 Width deviation rate/%+2.0～-1.5+3.0～-2.0+3.0～-2.5 Scattered defects are not allowed Slight local defects Score/(points/m) Width <150cm0.20.40.5 Width >150cm0.30.50.6 Note 1: Scattered defects: Defects that are widely distributed and difficult to measure. If they do not affect the overall effect, they are considered slight. Note 2: Local defects: Defects that are limited and can be measured. Score per meter = cumulative score / piece length (m). Table 5 Local defect limit requirements Unit is centimeter Defect type Defect limit per point Linear defect a Slight c10～100 Linear defect a Obvious d1～20 Serious e0.5～5 Strip defect b Slight c1～20 Obvious d0.5～5 Serious e0.3～3 Damage defect Hole score 4 points Jumped yarn ≤2 (starting from 3 or more consecutive tissue points or needle loops not interlaced), >2 score 4 points a Linear defect: Defects within 0.2cm or within 1 needle column. b Strip defect: Defects with a width of more than 0.2cm or 1 needle column; 1cm is the width measurement unit, and when the width exceeds 1cm, the score is accumulated by 1cm strip. c Slight: Not obvious intuitively, difficult to identify clearly, does not affect the overall effect and use (color defect 4-5 level). d Obvious: It can be seen directly, but has little effect on the overall effect and use (color defect level 4). e Severe: The defect is obviously visible and can obviously affect the overall effect and use (color defect level 3-4)