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Leather Wet and Dry Rubbing Color Fastness Tester

Leather Wet and Dry Rubbing Color Fastness Tester

Rubbing Color Fastness Tester is suitable for testing the damage and fading of dyed shoe uppers and lining leather after rubbing. Test Method: Dry or moist white wool felt is wrapped around the surface of the rubbing hammer and then rubbed repeatedly against the test piece clamped on the test bench.

Conform to the standard.

QB/T2537, ISO/105, ASTM/D2054, AATCC/8, JIS/L0849 ISO-11640, SATRA PM173, etc.

What is color fastness to rubbing?

The color fastness of fabrics refers to the degree of fading of colored textiles or the degree of staining with other fabrics under the influence of It reflects the ability of the color of colored textiles to resist external environmental factors during the use of colored textiles or during the processing and use of dyed fabrics. It reflects the ability of the color of colored textiles to resist external forces.

Wet Penetration Tester.jpg

Measurement steps.

1. Specimen preparation.

1.1 The specimen and the standard abrasive small white cloth need to be humidified in a constant temperature and humidity environment.

1.2 When the specimen has multiple colors, all colors should be rubbed.

1.3 If the area of various colors is large enough, the sample must be taken separately.

1.4 Cut the specimen, respectively, dry rubbing and wet rubbing, should ensure that the rubbing to all the colors.

1.5 If the front and back of the sample is made of different materials, colors, front and back to do rubbing color fastness test.

1.6 do dry, wet rubbing fastness should not be repeated in the same part of the specimen.

2. Dry rubbing.

2.1 The specimen will be laid flat on the abrasive instrument with sandpaper, so that the length direction of the specimen and the direction of the dynamic range of the instrument and fix the specimen in the pressure plate, the clamp sample should be flat.

2.2 Fix the standard abrasive small white cloth on the abrasive head, clamp with spring clip, and put the abrasive head lightly on the specimen;

2.3 should ensure that the specimen does not slide or wrinkle when rubbing;

2.4 Place the friction head on the specimen. Turn on the power, and turn on the POWER button. Set the number of tests.

2.5 Press the START key to start the test. When the number of tests reaches the set value, the instrument stops automatically.

2.6 Remove the standard rubbing white cotton cloth and use the colorimetric card for comparison rating.

3. Wet rubbing.

3.1 Completely wet the standard rubbing small white cloth in distilled water;

3.2 Remove it and squeeze it in the filter paper to make it have a certain water content;

3.3 The rest of the steps are the same as the above dry rubbing test steps;

4. Result processing.

4.1 Before grading, use transparent adhesive to gently stick away the loose lint on the abrasive white cloth.

4.2 Use three layers of unused white cloth under the white cloth to be evaluated, and evaluate the color fastness of the white cloth with reference to the standard color fastness card.

Do you know how to improve color fastness to rubbing, leave a message to us for color fastness test method and leather wet and dry Rubbing Color Fastness Tester price information!