How to assess the color fastness of flame retardant fabrics
Color fastness is one of the important quality indicators of textiles. The so-called color fastness refers to the color of textiles under the physical and chemical effects, the color to maintain a firm level, that is, the color of textiles affected by the external color fastness is called the color fastness. To test the color change of the sample, the degree of white cloth staining rating level that good or bad color fastness.
Color fastness in various projects, the most commonly used color fastness to rubbing fastness, color fastness to perspiration, color fastness to washing, color fastness to light, water fastness, color fastness to brush Degree, weather fastness and other projects. In real life, it mainly depends on the end use of the product to decide which projects to test. Among them, the items of anti-perspiration, dry rub resistance and water fastness are the items required by the basic safety technical specifications of textiles. All the dyed textiles should be inspected. In addition, infant and toddler textile products also need to test the saliva color fastness.
Color fastness assessment generally used visual assessment method, that is, gray sample card as the standard sample, under certain lighting and environmental conditions, with the eyes of gray cards and samples to determine the original sample color and white cloth staining level number. Gray card (respectively discoloration and staining) for the five fastness levels, namely the best 5,4,3,2,1.5 level, the worst level 1. In each two levels and then add half, that is 4-5,3-4,2-3,1-2, so our daily gray card for the 5th grade 9 files, the color fastness assessment results of 9 levels one. If the color fastness of a product does not meet the standard level, then the product is unqualified.
Flame-retardant fabrics in the prevention of fire has a good protective effect, fire-retardant overalls can effectively reduce the fire and sputter metal droplets on the human body injury - YuLong Safety
Color fastness in various projects, the most commonly used color fastness to rubbing fastness, color fastness to perspiration, color fastness to washing, color fastness to light, water fastness, color fastness to brush Degree, weather fastness and other projects. In real life, it mainly depends on the end use of the product to decide which projects to test. Among them, the items of anti-perspiration, dry rub resistance and water fastness are the items required by the basic safety technical specifications of textiles. All the dyed textiles should be inspected. In addition, infant and toddler textile products also need to test the saliva color fastness.
Color fastness assessment generally used visual assessment method, that is, gray sample card as the standard sample, under certain lighting and environmental conditions, with the eyes of gray cards and samples to determine the original sample color and white cloth staining level number. Gray card (respectively discoloration and staining) for the five fastness levels, namely the best 5,4,3,2,1.5 level, the worst level 1. In each two levels and then add half, that is 4-5,3-4,2-3,1-2, so our daily gray card for the 5th grade 9 files, the color fastness assessment results of 9 levels one. If the color fastness of a product does not meet the standard level, then the product is unqualified.
Flame-retardant fabrics in the prevention of fire has a good protective effect, fire-retardant overalls can effectively reduce the fire and sputter metal droplets on the human body injury - YuLong Safety
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