Perspiration colorfastness

Eor colorfastness to perspiration, ISO 10S-E04, the specimen is immersed in a solution of 0.5 g/L of 1-histidine monohydrochloride monohydrate and 5 g/L sodium chloride buffered to either pH 8.0 (alkaH perspiration test) or pH 5.5 (acid perspiration test) in a dish at 50 1 Hquor-to-goods ratio, at room temperature for 30 min. The specimen is removed and, as in the water test EOl, left for 4 h between plates at 37°C before drying and assessing both test piece and adjacents. 

Colorfastness to Perspiration. Two specimens of the dress fabric were basted to separate squares of multifiber test fabric squares, according to A.A.T.C.C. Test Method 15-1975. One was immersed in an acid solution and the other in an alkaline solution for 20 min each. After wetting, the specimens were blotted between paper toweling to absorb... 

Table II. Transfer of Color from Fabric to Multifiber Test Strip in Colorfastness to Washing and Colorfastness to Perspiration Tests (Evaluated Using Gray Scale for Staining)...

Cellulose acetate and triacetate can be spun-dyed. Spun-dyed acetate and triacetate yarns are extremely colorfast to washing, dry cleaning, sunlight, perspiration, sea water, and crocking and are very resistant to gas or fume fading [15]. 

Colorfastness of materials to perspiration, laundering, and other exposure Dimensional changes in materials... 

Colorfastness n. Resistance to fading i.e., the property of a dye to retain its color when the dyed (or printed) textile material is exposed to conditions or agents such as light, perspiration, atmospheric gases, or washing that can remove or destroy the color. A dye may be reasonably fast to one agent and only moderately fast to another. Degree of fastness of color is tested by standard procedures. Textile materials often must meet certain fastness specifications for a particular use. 

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