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This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces FZ/T 72007-2006 Warp knitted fake fur and the following main technical changes have been made with respect to FZ/T 72007-2006:
——“width deviation” is changed to “effective width deviation rate” and its indexes are adjusted (see Table 1; Table 1 of Edition 2006);
——“weight deviation per square meter” is changed to “weight deviation per square meter” and its indexes are adjusted (see Table 1; Table 1 of Edition 2006);
——The assessment index of marble bursting strength is deleted (see Table 1; Table 1 of Edition 2006);
——The assessment index and test method of depilate quantity are added (see Table 1, 5.4.4 and Annex B);
——The index of dimensional stability to washing is adjusted (see Table 1; Table 1 of Edition 2006);
——The assessment index of colour fastness to light for first-grade products is adjusted (see Table 1; Table 1 of Edition 2006);
——The assessment index of colour fastness to washing with soap or soap and soda is adjusted (see Table 1; Table 1 of Edition 2006);
——The assessment index of colour fastness to rubbing is adjusted (see Table 1; Table 1 of Edition 2006);
——The assessment index and test method of organotin are added (see Table 1 and 5.4.15);
——“Products for infants and children shall also meet the relevant requirements specified in GB 31701.” is added (see 4.3.2);
——Appearance quality requirements are refined and adjusted (see 4.4; 3.5 of Edition 2006);
——Sampling requirements for inherent quality are modified (see 5.1.3; 4.1.3 of Edition 2006);
——Description of appearance quality inspection is modified (see 5.2; 4.2 of Edition 2006);
——Re-inspection provisions are deleted (5.3 of Edition 2006);
——Description of product instructions is modified (see 7.1; 6.1 of Edition 2006).
This standard was proposed by the China National Textile and Apparel Council.
This standard is under the jurisdiction of National Technical Committee on Textiles of Standardization Administration of China (SAC/TC 209/SC 6).
The previous edition of this standard is as follows:
——FZ/T 72007-2006.
Warp knitted faux fur
1 Scope
This standard specifies the requirements, test methods, judgment rules, product instructions, packaging, transportation and storage of warp knitted faux fur products.
It is applicable to appraisal of the quality of warp knitted faux fur.
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 2910 (All parts) Textiles - Quantitative chemical analysis
GB/T 2912.1 Textiles - Determination of formaldehyde - Part 1: Free and hydrolyzed formaldehyde (Water extraction method)
GB/T 3920 Textiles - Tests for colour fastness - Colour fastness to rubbing
GB/T 3921-2008 Textiles - Tests for colour fastness - Colour fastness to washing with soap or soap and soda
GB/T 3922 Textiles -Testing method for colour fastness to perspiration
GB/T 4856 Package of cotton goods and knitwear
GB/T 5296.4 Instructions for use of products of consumer interest - Part 4: Textiles and apparel
GB/T 5713 Textiles- Tests for colour fastness - Colour fastness to water
GB/T 7573 Textiles - Determination of pH of the aqueous extract
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 8427-2008 Textiles - Tests for colour fastness - Colour fastness to artificial light: Xenon arc fading lamp test
GB/T 8628 Textiles - Preparation, marking and measuring of fabric specimens and garments in tests for determination of dimensional change
GB/T 17592 Textiles - Determination of the banned azo colourants
GB 18401 National general safety technical code for textile products
GB/T 18885 Technical specifications of ecological textiles
GB/T 20385 Textiles - Determination of organotin compounds
GB/T 29862 Textiles - Identification of fiber content
GB 31701 Safety technical code for infants and children textile products
FZ/T 01026 Textiles - Quantitative chemical analysis - Multinary fibre mixtures
FZ/T 01057 (All parts) Test method for identification of textile fibres
FZ/T 01095 Textiles - Test method of elastane fibre content
3 Terms and definitions
For the purposes of this document, the following term and definition apply.
3.1
warp knitted faux fur
a double-needle bed warp knitting machine is adopted to feed yarns or filaments into a double face fabric connected by extension threads of a certain length, and then the extension threads are cut away in the middle and subjected to dyeing and finishing processing to prepare the pile fabric with fur style
4 Requirements
4.1 Item
The requirements involve inherent quality and appearance quality. The inherent quality covers effective width deviation rate, weight deviation rate per square meter, dimensional stability to washing, depilate quantity, colour fastness to light, colour fastness to washing with soap or soap and soda, colour fastness to rubbing, colour fastness to water, colour fastness to perspiration, formaldehyde content, pH value, peculiar smell, decomposable carcinogenic aromatic amine dyes, fiber content and organotin compounds. The appearance quality covers local defects and scattered defects.
4.2 Grading requirements
4.2.1 Products are classified into superior products, first-grade products and acceptable products in terms of the quality grade.
4.2.2 Products are graded by batches in terms of inherent quality and by pieces in terms of appearance quality, and shall take the lowest grade in case of a combination of both.
4.3 Inherent quality requirements
4.3.1 See Table 1 for inherent quality requirements.
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Table 1 Inherent quality requirements
Item Superior product First-grade product Acceptable product
Effective width deviation rate/% ≥ -1.0 -1.5 -2.0
Weight deviation rate per square meter/% ≥ -3.0 -5.0 -8.0
Dimensional stability to washing/% Longitudinal -3.0~+1.0 -3.0~+2.0 -4.0~+3.0
Horizontal -2.0~+1.0 -2.0~+2.0 -4.0~+3.0
Depilate quantity / (mg/100cm2) ≤ 4
Colour fastness to light/grade ≥ 4 3 3
Colour fastness to soap or soap and soda/grade ≥ Change in colour 4-5 4 3-4
Staining 3 3 3
Colour fastness to rubbing/grade ≥ Wet rubbing 3-4 3 3
Dry rubbing 4 3-4 3
Colour fastness to water/grade In accordance with those specified in GB 18401
Colour fastness to perspiration/grade
Formaldehyde content/(mg/kg)
pH value
Peculiar smell
Decomposable carcinogenic aromatic amine dyes
Fiber content/% In accordance with those specified in GB/T 29862
Organotin compounds In accordance with those specified in GB/T 18885
Note: Colour fastness (except for colour fastness to light) is not assessed for the natural colour and bleached fabrics.
4.3.2 Products for infants and children shall also meet the relevant requirements specified in GB 31701.
4.4 Appearance quality requirements
4.4.1 Appearance defects and their grading
There are local defects and scattered defects based on pieces. According to the degree of influence on wearability, they are subjected to label grading and grading respectively.
4.4.2 Label provisions
4.4.2.1 Local appearance defects are labeled according to provisions, with 10cm labeled for clothing fabrics, 20cm labeled for home textile blankets and 5cm labeled for other purposes.
4.4.2.2 Local appearance defects are not cut in principle, but if there are over 5cm broken holes, over 50cm brushing and clipping damages, over 50cm lack of pile, serious uneven pile face, serious course mark, 5 labels within one continuous meter, and continuous defects with net length of 200cm or more, the defects shall be cut. If it shall but does not be cut, it is not allowed.
4.4.2.3 For superior products, the number of products allowed to be labeled per meter is 0.1; for first-grade products, the number is 0.2; and for acceptable products, the number is 0.3.
4.4.2.4 Label provisions of appearance defects are shown in Table 2. See Annex A for the description of appearance defects.
Table 2 Label provisions of appearance defects
Category Defect name Defect degree Label provisions Remarks
Bottom defects Broken hole If not larger than 5cm
1 to 3 holes within 5cm in longitudinal direction
Every 3 holes if there are more than 3 holes within 5cm in longitudinal direction
1 to 3 holes per 5cm within over 5cm in longitudinal direction
Scattered over the whole piece
1
1
1
Not allowed If it is larger than 5cm, cut in accordance with 4.4.2.2
Drop stitch If single needles are discontinuous
Within 10cm (including 10cm)
Every 10cm if larger than 10cm
Scattered over the whole piece
1
1
Not allowed It is taken as broken hole if there are two or more continuous stitches.
Stain Apparently 5 cm~20 cm
Every 20cm if larger than 20cm
Apparently scattered over the whole piece 1
1
Not allowed
Uneven selvage 10cm~30cm (including both)
Every 30cm if larger than 30cm
Scattered over the whole piece 1
1
Not allowed It is assessed as uneven selvage if the recess exceeds 3cm.
Sparse stitch Apparently 50cm~100cm
Every 100cm if larger than 100cm
Apparently scattered over the whole piece 1
1
Not allowed
Backing pile Apparently 5cm~30cm
Every 30cm if larger than 30cm
Apparently scattered over the whole piece 1
1
Not allowed It is only used to evaluate products that need compound processing.
Uneven gluing Apparently 50cm~100cm
Every 100cm if larger than 100cm
Apparently scattered over the whole piece 1
1
Not allowed
Pile face defects Adustion Apparently 50cm~100cm
Every 100cm if larger than 100cm
Apparently scattered over the whole piece 1
1
Not allowed
Starch lump Apparently within 50cm (including 50cm)
Every 50cm if larger than 50cm
Apparently scattered over the whole piece 1
1
Not allowed
Brushing and clipping damages If not larger than 50cm
Apparently within 10cm (including 10cm)
Every 10cm if larger than 10cm
Apparently scattered over the whole piece
1
1
Not allowed In case of larger than 50cm, cut in accordance with 4.4.2.2
Lack of pile If not larger than 50cm
5cm~20cm (including both)
Every 20cm if larger than 20cm
Scattered over the whole piece
1
1
Not allowed In case of larger than 50cm, cut in accordance with 4.4.2.2
Faulty brushing Apparently within 50cm (including 50cm)
Seriously scattered over the whole piece 1
Not allowed
Uneven pile face If not larger than 100cm
Apparently within 50cm (including 50cm)
Every 50cm if larger than 50cm
Apparently scattered over the whole piece
1
1
Not allowed It is serious uneven pile face if larger than 100cm and cut in accordance with 4.4.2.2.
Stain Apparently within 10cm (including 10cm)
Every 10cm if larger than 10cm
Apparently scattered over the whole piece 1
1
Not allowed
Pressed pile Apparently within 50cm (including 50cm)
Every 50cm if larger than 50cm
Apparently scattered over the whole piece 1
1
Not allowed
Course mark If not larger than 100cm
Apparently 20cm~50cm
Every 50cm if larger than 50cm
Apparently scattered over the whole piece
1
1
Not allowed It is serious course mark if larger than 100cm and cut in accordance with 4.4.2.2.
Crooked cutting motif Apparently within 100cm (including100cm)
Every 100cm if larger than 100cm
Apparently scattered over the whole piece 1
1
Not allowed
Dye spot on pile face Within 50cm (including 50cm)
Every 50cm if larger than 50cm
Apparently scattered over the whole piece 1
1
Not allowed
Note 1: “1” represents one label.
Note 2: “not allowed” means it is not allowed for superior products, first-grade products and acceptable products and the product is dropped to unacceptable product.
Note 3: Description of defect degree:
slight: defects which are invisible intuitively but recognizable by careful identification.
apparent: defects that have no influence on the overall effect, but can be felt.
significant: defects which have obvious influence on the overall effects.
Note 4: The length of defects shall be counted as the maximum limit.
Note 5: In appearance defects, if defects not mentioned above appear, they, may be labeled and graded according to the degree of influence on the wearability.
Note 6: Folds shall be prevented when products are rolled for packaging or are stored.
5 Test methods
5.1 Sampling quantity
5.1.1 Samples with the same raw material ingredients, yarn count, machine number, weave structure and by the same sorting method are regarded as the same variety.
5.1.2 As for appearance quality, take 1%~3% of products from the same variety randomly as samples, and the sample quantity shall not less than three rolls. Samples of different color codes shall be evenly matched and taken.
5.1.3 For inherent quality, take samples randomly from the same variety of finished products. As for test of the dimensional stability to washing, three test samples with dimension of 500mm×500mm are taken from three rolls respectively, and one test sample with a full width of 1,000mm is taken for other items.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Test methods
6 Judgment rules
7 Product instructions, packaging, transportation and storage
Annex A (Informative) Appearance defects
Annex B (Normative) Test method of depilate quantity
