GB/T 30159.1-2013Textiles—Testing and evaluation for anti-soil properties—Part 1: Stain resistance (English PDF)

1 Scope

This part of GB/T 30159 specifies two test methods for measuring stain resistance of textiles, namely liquid staining method and solid staining method; gives an evaluation index of stain resistance.

This part applies to all types of textile fabrics and their products. According to the product type and purpose, it may select one or two methods. The test results, which are obtained by using different soils and methods, are not comparable.

This part does not apply to coated fabrics for membrane structures. When the color of the specimen and the solid dirt are similar, it should not use the solid staining method for evaluation.

2 Normative references

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this standard.

GB/T 250 Textiles - Tests for color fastness - Grey scale for assessing change in color

GB 1534-2003 Peanut oil

GB/T 4802.3-2008 Textiles - Determination of fabric propensity to surface fuzzing and to pilling - Part 3: Pilling box method

GB/T 6529 Textiles - Standard atmospheres for conditioning and testing

GB/T 7044-2003 Color carbon black

GB/T 8629-2001 Textiles - Domestic washing and drying procedures for textile testing

GB 18186-2000 Fermented soy sauce same circumferential surface as the inner surface of the cylinder body.

5 Equipment and materials

5.2.4 The protective bag is made of 3 layers of A-type polyester wash cloth, that meets the requirements of GB/T 8629-2001. The size should fit into the test tube. The bag opening can be tightened by a rope, to prevent the test tube from contaminating and damaging the inner wall, during the turning process of the overturning box.

5.2.7 Gray sample scale for evaluating discoloration, which complies with GB/T 250.

6 Preparation and humidity conditioning of specimen

Take a representative specimen from each sample; ensure that its surface is free from stains and wrinkles. For the liquid staining method, take 2 specimens; the size shall meet the test requirements. For the solid staining method, take 2 specimens; the size of each specimen is about (300 × 120) mm.

If evaluating the washing resistance of the anti-dirt properties of the sample, it shall use the 6A procedure in GB/T 8629-2001, to wash the sample. The number of washings is 10, OR it is determined according to the negotiation between the two parties, but it shall be stated in the test report.

Note: When washing multiple times, the time can be accumulated for continuous washing.

The specimen shall be subject to humidity conditioning, in the standard atmosphere as specified in GB/T 6529.

7 Procedure

8 Results presentation and evaluation