A kind of acid color fixing agent and its preparation method and application method
An acid color fixing agent and solvent technology, applied in the field of printing and dyeing auxiliaries, can solve the problems of large color change, not resistant to concentrated acid, and easy to form fixed color spots on the fabric, so as to reduce the color change, improve the color fastness, avoid the The effect of fixing stains
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[0026] The present invention also provides a preparation method for preparing the acidic color fixing agent involved in the present invention, which includes the following steps: adding resin, glacial acetic acid, solvent and active body to the reaction vessel to obtain the first mixed solution; stirring For the first mixed solution, heat the reaction vessel until the temperature of the first mixed solution reaches 95-102°C, and keep it warm for 30-45 minutes until the resin is fully dissolved to obtain the second mixed solution; the reaction vessel The temperature of the second mixed liquid in the mixture was lowered to 70°C, and a sulfonating agent was added dropwise to the reaction vessel to keep the reaction temperature lower than 80°C; after the dropwise addition of the sulfonating agent, the temperature was kept at 75 ℃-80℃, heat preservation reaction for 4-6 hours to obtain the third mixed solution; cool the third mixed solution to 45-55℃, add deionized water, continue s...
Embodiment 1
[0034]A preparation method provided by this embodiment is used to prepare the acidic color fixing agent involved in the present invention, in parts by weight, comprising the following steps: adding 45 parts of resin, 30 parts of glacial acetic acid, and 5 parts of fatty alcohol into the reaction vessel Polyoxyethylene ether sulfate and 10 parts of tripropylene glycol to obtain the first mixed solution; stir the first mixed solution, heat the reaction vessel with steam until the temperature of the first mixed solution reaches 95-102°C, and keep warm for the reaction 30-45 minutes, until the resin is fully dissolved to obtain the second mixed solution; the second mixed solution in the reaction vessel is cooled to 70°C, and 15 parts of concentrated sulfuric acid is added dropwise to the reaction vessel, keeping The reaction temperature is lower than 80°C. When the reaction temperature exceeds 80°C, cool down with circulating cooling water in time, and the time for dropping the con...
Embodiment 2
[0037] A preparation method provided by this embodiment is used to prepare the acidic color fixing agent involved in the present invention, in parts by weight, comprising the following steps: adding 42 parts of resin, 35 parts of glacial acetic acid, and 6 parts of cardanol into the reaction vessel Polyoxyethylene ether and 12 parts of diethylene glycol to obtain the first mixed solution; stir the first mixed solution, heat the reaction vessel with steam until the temperature of the first mixed solution reaches 95-102°C, and keep warm for the reaction 30-45 minutes, until the resin is fully dissolved to obtain the second mixed solution; the second mixed solution in the reaction vessel is cooled to 70°C, and 16 parts of concentrated sulfuric acid is added dropwise to the reaction vessel, keeping The reaction temperature is lower than 80°C. When the reaction temperature exceeds 80°C, cool down with circulating cooling water in time, and the time for dropping the concentrated sulf...
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