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HJC SERVICES

GB 18401 Safety Standards for Textile Products

Colorfastness to Perspiration

The textile specimen is stitched together with a standard adjacent fabric and then treated separately in acidic and alkaline test solutions containing histidine. After removing the excess solution, the specimen-adjacent fabric assembly is placed between two plates in a test apparatus and subjected to a specified pressure. The specimen and adjacent fabric are then dried separately. The color change of the specimen and the staining of the adjacent fabric are evaluated using a gray scale or instrumental measurement.

 

Colorfastness to Rubbing

The textile specimen is rubbed against both a dry and a wet adjacent cloth using a crock meter. The degree of staining on the adjacent cloth is assessed to determine the colorfastness. The colorfastness to rubbing tester provides two test configurations via two optional sizes of rubbing heads: one suitable for pile fabrics, and the other for solid-colored fabrics or large-pattern printed fabrics.

 

Formaldehyde Content

 

pH Value

 

Colorfastness to Water

 

Colorfastness to Saliva

 

Odor, etc.

 

 

 

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