The applications of dye
2022-05-20
https://www.shangyidye.com/dyeDye refers to a class of organic compounds that can enable other substances to obtain a bright and firm color. Since the pigments used today are all artificially synthesized, they are also called synthetic dyes. Dyes and pigments are generally compounds that have their own color and can give other substances a bright and firm color in a molecular state or a dispersed state.
1. Select dyes according to fiber properties. Due to the different properties of various fibers, it is necessary to select suitable dyes when dyeing.
2. Select dyes according to the use of the dyed object. Because of the different uses of the dyed object, the fastness requirements of the dyed products are also different. For example, the cloth used for curtains is not washed often, but it is often exposed to sunlight. Therefore, when dyeing, dyes with high light fastness should be selected.
3. Select dyes according to the cost of dyestuffs. When choosing dyestuffs, it is not only necessary to consider the color light and fastness, but also the cost and supply of dyes and auxiliaries used.
4. Selection of dyestuffs during color matching. When color matching is required, the selection of dyes should pay attention to their composition, solubility, color fastness and other properties. Due to the different dyeing properties of various dyes, the dyeing effect is often affected by differences in temperature, solubility, and dyeing rate during dyeing. Therefore, when color matching, it is necessary to select dyes with similar properties, and the closer the better, the better the control of process conditions and the stability of dyeing quality.
5. Select dyes according to the mechanical properties of dyeing. Due to different dyeing machines, the properties and requirements of dyes are also different. If it is used for jigging, the dyes with higher directness should be selected; for pad dyeing, the dyes with lower directness should be selected, otherwise products that do not meet the requirements such as dark front and back light, uneven color and luster will be produced.
1. Select dyes according to fiber properties. Due to the different properties of various fibers, it is necessary to select suitable dyes when dyeing.
2. Select dyes according to the use of the dyed object. Because of the different uses of the dyed object, the fastness requirements of the dyed products are also different. For example, the cloth used for curtains is not washed often, but it is often exposed to sunlight. Therefore, when dyeing, dyes with high light fastness should be selected.
3. Select dyes according to the cost of dyestuffs. When choosing dyestuffs, it is not only necessary to consider the color light and fastness, but also the cost and supply of dyes and auxiliaries used.
4. Selection of dyestuffs during color matching. When color matching is required, the selection of dyes should pay attention to their composition, solubility, color fastness and other properties. Due to the different dyeing properties of various dyes, the dyeing effect is often affected by differences in temperature, solubility, and dyeing rate during dyeing. Therefore, when color matching, it is necessary to select dyes with similar properties, and the closer the better, the better the control of process conditions and the stability of dyeing quality.
5. Select dyes according to the mechanical properties of dyeing. Due to different dyeing machines, the properties and requirements of dyes are also different. If it is used for jigging, the dyes with higher directness should be selected; for pad dyeing, the dyes with lower directness should be selected, otherwise products that do not meet the requirements such as dark front and back light, uneven color and luster will be produced.
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