1 Scope
This standard specifies requirements, inspection (testing) method, inspection classification rules, marking, packaging, transportation, storage and other technical requirements for the knitted caps.
This standard is applicable to the caps with textile knitted fabrics as the major raw material.
2 Normative Reference
The following referenced documents are indispensable for the application of this document. For dated reference, subsequent amendments (excluding correction) to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest editions of the normative documents are applicable to this standard.
GB 250 Gray scale for assessing change in color
GB 251 Gray scale for assessing staining
GB/T 2910 Textile - Binary fiber mixtures - Quantitative chemical analysis
GB/T 2911 "Textiles-Ternary Fiber Mixtures-Quantitative Analysis"
GB/T 2912.1 Textiles --Determination of Formaldehyde -- Part 1: Free and Hydrolyzed Formaldehyde (Water Extraction Method)
GB/T 3920 Textiles-Tests for color fastness-Color fastness to rubbing
GB/T 3921.1 Textiles--Test for color fastness--Color fastness to washing: Test 1
GB/T 3922 Textiles - Testing method for color fastness to perspiration
GB/T 4841.6 1/12 Color cards of standard depths for dyeing with dyestuffs
GB 5296.4 Instructions for use of products of consumer interest - Instructions for use of textiles and apparel
GB/T 5711 "Textiles-Tests for Color Fastness-Color Fastness to Dry Cleaning"
GB/T 5713 Textiles - Tests for color fastness - Color fastness to water
GB/T 7573 Textiles - Determination of pH of the aqueous extract
GB/T 8170 "Rules for Rounding off of Numberical Values"
GB/T 8427-1998 Textiles-Tests for color fastness -Color fastness to artificial light: Xenon arc fading lamp test
GB/T 17592 Textiles - Determination of the banned azo colourants
GB 18401-2003 National General Safety Technical Code for Textile Products
GB/T 18886 Textiles-Tests for Color Fastness-Color Fastness to Saliva
FZ/T 01026 Textile - Quaternary fiber mixtures - Quantitative chemical analysis
FZ/T 01053 Textiles - Identification of fiber content
FZ/T 01057 (all the parts) Test method for identification of textile fibers
FZ/T 01095 Textile--Test method of elastane fiber content
FZ/T 80002 Marking, packaging, transportation and storage for garments
FZ/T 80004 Rule for garments delivery inspection
3 Terms and Definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
Dyeing defect
It refers that uneven dyeing of materials causes color shades on the surface of knitted fabrics.
3.2
Cockling
It refers to rugged appearance on the surface of the knitted fabrics.
3.3
Uneven elasticity
Size and elasticity of loops on knitted fabrics differ from each other.
3.4
Irregular flower pattern
Positions of patterns, flower pattern or horizontal stripe that shall be aligned are in misalignment.
3.5
Miss tuck
In knitting, loops on some certain stitches is short of loop slippage, which forms undue tucking loops and makes irregular gaps on knitted fabrics.
3.6
Dropped stitch
In knitting process, yarn is not fractured; new yarn fails to be filled in needle hook, which causes vertical defect of the loop slippage.
3.7
Failed loops
In the loop formation process, loop formation fails continuously many times on one knitting needle.
3.8
Needle line
As for longitudinal arrangement of loops on knitted fabrics, It refers to the lines in uneven thickness,
3.9
Shriveled stitch
It refers to that the flower pattern that shall be bulgy on knitted fabric but fails to be bulgy.
3.10
Ripped gap
In the knitting process, loop slippages occur on many latch needle latch needle simultaneously.
3.11
Ripped selvedge
In the knitting process, loop slippage occurs on latch needle near the selvedge.
3.12
Hole
In loop formation of knitted fabrics, there is one or several yarn breakages as well as loop decoherence.
3.13
Lengthwise oil streaking
There are oil stains of longitudinal strip on knitted fabrics in one transversal line or section.
3.14
Mending mark
Marks are left after repairing the knitted fabric.
3.15
Uneven galling
After galling the knitted fabric, villus on the surface is uneven in strips with bald spots, insufficient coverage and appearance of front edge.
3.16
Bright specks
Due to ill typing of products, obvious white or bright specks occur on the surface.
4 Requirements
4.1 Instructions for use
Instructions for use of the finished product shall be implemented according to those specified in GB 5296.4 and GB 18401-2003. Therein, specification for the finished product shall take cm as unit with cap width labeled.
4.2 Specification
Specification for main positions of the finished products shall be determined by enterprise itself; the allowable deviation for specification shall be in accordance with those specified in Table 1.
