Test method for color fastness to dry rubbing of mattresses
Among the unqualified mattress testing items exposed by CCTV, the color fastness index of mattress textiles to dry rubbing also did not meet the national standard. Color fastness refers to the resistance of the color of textiles to various effects during processing and use, and is a quality index used to assess whether a product has faded. Poor color fastness can cause the surface color and pattern of the mattress to fade, stain light-colored clothing or bedding. National standard specifies the color fastness to dry rubbing of mattress fabrics≥Level 3. After testing, a total of 7 samples out of 50 samples did not meet the requirements of the national standard. After the inspection and testing personnel confirmed that 4 of the 37 spring soft mattress samples were unqualified, the failure rate was 10.8%. Among the 13 pieces of brown fiber elastic mattresses, 3 products were unqualified, and the unqualified rate was 23.1%. If the pigment falls off and attaches to the human skin, the molecules of the dye and heavy metal ions may be absorbed by the human body through the skin and endanger the health of the human skin. The resistance of the color of a textile to various effects during processing and use. The fastness rating is based on the discoloration of the sample and the staining of the undyed backing fabric. Textile color fastness testing is a routine testing item in the intrinsic quality testing of textiles. The test of color fastness to dry/wet rubbing is to measure the influence of the fabric on the color fastness of the fabric after being rubbed against each other or with other objects during long-term wearing or use, and it is also an important test item in color fastness. : Method of color fastness to rubbing: Put a white rubbing cloth on the sample to be tested and rub it back and forth under the specified conditions to transfer the color to the white rubbing cloth. This situation can be compared with the stained gray card to assess the color fastness level. Evaluation of color fastness to rubbing: After the textile test sample is removed from the electric rubbing color fastness tester, it is rated with the standard stained and faded gray card under the standard light source light box. Grade 5 has no chromatic aberration, and Grade 1 has serious chromatic aberration. For accurate rating, please contact our relevant technical staff.
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