Modification method for reactive dye for leather
A technology of reactive dyes and leather, which is applied in the field of modification of reactive dyes for leather, to achieve the effects of improving dry and wet rub resistance, improving humidity and heat stability and physical and mechanical properties, improving color fastness, washing resistance and sweat resistance
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Embodiment 1
[0022] Dissolve 13.59g of glycolic acid in 1000ml of water, neutralize it with sodium hydroxide solution to pH 8-9 at room temperature, then add 80g of active bright yellow K-4G, raise the temperature to 60°C, react for 4h, and the product is dried and ground.
Embodiment 2
[0024] Dissolve 17.44g of sodium glycolate in 1000ml of water, then add 80g of active bright yellow K-4G, raise the temperature to 80°C, control the pH of the system to 8-9, react for 2h, and the product is dried and ground.
Embodiment 3
[0026] Dissolve 15g of glycine in 1000ml of water, neutralize with sodium hydroxide solution to pH 8-10 at room temperature, then add 61.5g of reactive brilliant red X-3B, heat up to 95°C, react for 2 hours, and the product is dried and ground.
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