1 Scope
This standard specifies a method for determining the resistance of the color of textiles of all kinds, including textile floor coverings and other pile fabrics, to rubbing off and staining other materials.
The method is applicable to textiles made from all fibers in the form of yarn or fabric, including textile floor coverings, whether dyed or printed.
Two tests may be made, one with a dry rubbing cloth and one with a wet rubbing cloth.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 251 Textile Tests for Color Fastness Gray scale for assessing staining(GB/T 251—2008, ISO 105-A03: 1993, IDT)
GB/T 6151 Textile Tests for Color Fastness general rules(GB/T 6151—1997, eqv ISO 105-A01: 1994)
GB/T 6529 Textiles—Standard atmospheres for conditioning and testing(GB/T 6529—2008, ISO 139: 2005, MOD)
GB/T 7568.2 Textiles—Tests for color fastness—Standard adjacent fabrics—Part 2:Cotton and viscose(GB/T 7568.2—2008, ISO/DIS 105-F02: 2008, MOD)
ISO 105-X16 Textiles -- Tests for color fastness -- Part X16: Color fastness to rubbing -- Small areas
3 Principle
Specimens of the textile are rubbed with a dry rubbing cloth and with a wet rubbing cloth. The machine provides two combinations of testing conditions through two alternative sizes of rubbing finger: one for pile fabrics; one for solid color or large print fabrics.
4 Apparatus and materials
4.1 Suitable testing device for determining the color fastness to rubbing, using a reciprocating straight line rubbing motion and two alternative sizes of rubbing fingers.
4.1.1 For pile fabrics, including textile floor coverings: rubbing finger with a rectangular rubbing surface with the lead edge rounded measuring 19 mm x 25, 4 mm (crock block).
The rubbing finger shall exert a downward force of (9 ± 0, 2) N, moving to and fro in a straight line along a (104 ±3) mm track.
NOTE 1 Difficulty may be experienced in making assessments of the degree of staining on the rubbing cloth when pile fabrics are tested using the (16 ± 0,1) mm diameter rubbing finger due to heavier staining occurring on the circumference of the stained area, i.e., haloing. The rubbing finger described in 4.1.1 will eliminate the haloing with many types of pile fabrics.
