Daimaru method: color fastness of textiles to color sob test


Release time:

2018-12-22

There is no JIS standard number for this method, and it is usually called the Daimaru Method (DAIMARU BLEEDING TEST) in Japan.

Daimaru method: color fastness of textiles to color sob test

There is no JIS standard number for this method, and it is usually called the Daimaru Method (DAIMARU BLEEDING TEST) in Japan.

Principle of the test: One end of the specimen is immersed in water with reagents, and the degree of color fastness is evaluated by the gray card of pollution due to the rising effect of the water and the degree of color fastness of the textile.

Required test materials: balance, beaker, volumetric flask, room temperature dyeing machine

Test method:

1. The specimen is 2.5cm wide and 10cm long.

2. Printed fabrics take a part of the part that may produce color weeping; Striped fabrics take samples along the stripes horizontally.

3. For monochrome fabrics, select the color of fine flat cloth (width 2.5cm, length 10cm), its lower end and the sample (width 2.5cm, length 3cm) overlap 1.5cm, each end of a line, made of a combination of specimens.

4. Pour half of 0.05% nonionic surfactant into a 50ml or 100ml capacity beaker, and immerse the lower 2cm of the specimen into the solution.

5. Leave for 2 hours at room temperature, remove the beaker and dry the specimen in the original state.

6. The degree of contamination of the color sob at the white background is assessed by contamination gray card.