Analysis of color fastness to water and color fastness to perspiration
The color fastness to water reflects the discoloration of the textile itself and the staining of the lining fabric under the combined action of certain moisture, pressure and temperature. The color fastness testing-equipment' target='_blank'>tester to washing is a testing instrument, and (Hong Kong) Co., Ltd. is the manufacturer. Customers in need are welcome to inquire in time. In addition, the R&D engineer said that during the test, after the sample and the backing fabric are fully soaked, put it in an oven at a certain temperature for a certain period of time under a certain pressure, take it out to dry, and evaluate the discoloration and staining progression. The discoloration and staining grades are divided into 5 grades, 5 is the best and 1 is the worst. Table 7 lists the technical conditions of some domestic and foreign test methods for color fastness to water. Color fastness to washing tester is used for color fastness to washing, color fastness to dry cleaning, color fastness to rinsing, washing powder performance and other color fastness tests to washing and dry cleaning of various textiles, to evaluate the color fastness to washing of textiles performance. Applicable standard: ISO105M&SC4A, 5, 37, P3BIWSTM7, 115, 177, 193, 240, 241, AATCC2, 3, 28, 61, 62, 86, 132, 151, 190, BS1006NEXT2, 3, 5 Color fastness to perspiration is reflected in textiles in In different test solutions containing histidine, under the combined action of pressure and temperature, the color fastness to perspiration tester is a test instrument for self-discoloration and staining of the lining fabric, and customers who need it can inquire at any time. The engineer said that the gray card was used to evaluate the discoloration of the sample and the staining of the lining fabric, and the results were divided into 5 grades, 5 grades were the best, and 1 grades were the worst. Table 8 lists the technical conditions of some domestic and foreign test methods for color fastness to perspiration. In addition, the main way to improve the color fastness of fabrics to water and perspiration is to choose dyes reasonably, especially dyes with high fixation rate and good stability. Reasonably formulate and control the dyeing process, strengthen the fixing conditions, and form a covalent bond with high stability, so that the dye can be fully fixed. For example, when dyeing dyes with poor reactivity, a catalyst can be used, or an appropriate fixing agent can be used, or the color can be fixed at a relatively high temperature.
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Many of the textile testing equipment listed here can be purchased for less money, but in general we recommend paying a slightly higher price for significantly improved performance. These are our top choices and their recommended configurations.
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