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How does the Rubbing Color Fastness Tester of clothing fabrics solve the poor color fastness test?

How does the Rubbing Color Fastness Tester of clothing fabrics solve the poor color fastness test?

Clothing fabric Rubbing Color Fastness Tester is mainly used to test the color fastness of colored fabrics, coatings, printing and dyeing products, etc. The sample is fixed at one end of the body, and the rubbing head wrapped in white cotton cloth is in contact with the sample, reciprocating 10 times, Take off the white cotton cloth and compare it with the rating chart to evaluate the staining fastness of the fabric.


How does the Rubbing Color Fastness Tester of clothing fabrics solve the poor color fastness test?


First of all, it depends on the specific composition of the fabric. Natural fiber cotton, linen and wool silk are generally OK for dry rubbing, and dark colors are generally not high when wet rubbing. On the contrary, fabrics made of chemical fibers such as polyester and nylon generally only have problems with dry rubbing.

IULTCS Rubbing Color Fastness Tester

Dry rubbing is not good, it is generally a floating color problem, which is mainly improved by high temperature soaping.


If the level of wet rubbing is not enough, it will be more troublesome. Generally, it needs to be washed with high temperature soap to remove the floating color, and then ➕ special color fixing agent for treatment. If the above conventional methods are not enough, some special methods are needed, which can only be determined according to the composition of the fabric. The general idea is to find a way to form a film on the surface of the fabric, and to find a way to increase the adsorption capacity of the fixing agent.


Most customers encounter friction problems and usually cook them repeatedly by themselves or take them to the washing factory for enzyme washing. This method can generally improve dry friction, but not wet friction. Some customers often ask if it’s okay for me to apply the coating. As far as I know, the coating generally has no effect on wet friction.


Generally speaking, chemical fiber fabrics are better than natural fabric fabrics, and thick fabrics are better than thin fabrics (thick fabrics are easy to absorb color-fixing agents). The more complex the ingredients, the more difficult it is to improve, the printing is relatively difficult to improve, the sulfur dyeing is difficult to improve (washing fastness is good, wet rubbing is very poor), the tencel component is extremely difficult to improve, and the sanding is difficult to damage the surface of the fabric. improve.


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