A kind of acid dye dyeing method of cotton textile
An acid dye and dyeing method technology, applied in the field of textile printing and dyeing, can solve the problems of poor abrasion resistance and high dye content, and achieve the effects of increasing dye uptake, improving light fastness and saving processing costs.
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Embodiment 1
[0023] (1) Preparation of carboxylated carbon nanospheres:
[0024] After mixing the carbon nanospheres with the mixed solution of sulfuric acid and hydrochloric acid according to the mass ratio of 0.025:1, the suspension was prepared by ultrasonic treatment for 10-20 minutes, and the suspension was soaked for 25 hours, then heated at 110°C to reflux for 1.5 hours, and finally washed and washed repeatedly. Separate until the pH is neutral to remove impurities in the carbon nanospheres, and bring active reactive groups such as carboxyl groups on the surface, thereby obtaining carboxylated carbon nanospheres.
[0025] (2) Prepare the modified carboxylated carbon nanospheres into a 0.02% water dispersion, then add the carboxylated carbon nanosphere solution into the dyeing bath and rotate for 20 minutes, and finally press the mass of the carboxylated carbon nanospheres and the acid dye Add acid dye at a ratio of 0.07:1, and fix the color with formic acid after dyeing is finished.
Embodiment 2
[0027] (1) Preparation of carboxylated carbon nanospheres:
[0028] After mixing the carbon nanospheres with the mixed solution of sulfuric acid and hydrochloric acid according to the mass ratio of 0.02:1, the suspension is prepared by ultrasonic treatment for 10 to 20 minutes, soaked for 24 hours, then heated and refluxed at 100°C for 1 hour, and finally washed and separated repeatedly Until the pH is neutral, the impurities in the carbon nanospheres are removed, and the surface of the carbon nanospheres is equipped with active reactive groups such as carboxyl groups to obtain carboxylated carbon nanospheres.
[0029] (2) Prepare the modified carboxylated carbon nanospheres into a 0.01% aqueous dispersion, then add the carboxylated carbon nanosphere solution to the dye bath and rotate for 10 minutes, and finally press the mass of the carboxylated carbon nanospheres and the acid dye Add acid dye at a ratio of 0.005:1, and fix the color with formic acid after dyeing is finished.
Embodiment 3
[0031] (1) Preparation of carboxylated carbon nanospheres:
[0032] After mixing the carbon nanospheres with the mixed solution of sulfuric acid and hydrochloric acid according to the mass ratio of 0.03:1, the suspension is prepared by ultrasonic treatment for 10-20 minutes, soaked for 30h, then heated at 120℃ to reflux for 2h, and finally washed and separated repeatedly Until the pH is neutral, the impurities in the carbon nanospheres are removed, and the surface of the carbon nanospheres is equipped with active reactive groups such as carboxyl groups to obtain carboxylated carbon nanospheres.
[0033] (2) Prepare the modified carboxylated carbon nanospheres into a 0.03% water dispersion, then add the carboxylated carbon nanosphere solution to the dye bath and rotate for 30 minutes, and finally press the mass of the carboxylated carbon nanospheres and acid dye Add acid dye at a ratio of 0.01:1, and fix it with formic acid after dyeing is finished.
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