Polyester alkali decrement and one-bath-dyeing one-step low-temperature processing method
A processing method and alkali weight reduction technology, which is applied in the field of dyeing and finishing, can solve the problems of lowering the dyeing temperature of polyester disperse dyes, high energy and chemical consumption, unfavorable energy saving and emission reduction, etc., so as to improve processing efficiency, reduce consumption, and facilitate operation Effect
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Embodiment 1
[0015] A one-bath low-temperature processing method for polyester alkali weight reduction and dyeing. The polyester is subjected to one-bath alkali weight reduction dyeing and one-step processing by dipping technology. The processing process is as follows: sodium hydroxide, cationic accelerator 1227 (dodecyl Methyl benzyl ammonium chloride), carrier benzyl alcohol, dispersant DN and disperse orange BROB were dissolved in water to prepare a dye liquor, and then the polyester fabric was put into the dye liquor with a bath ratio of 1:40, and then the dye was dyed at 1°C / min The heating rate was raised to 95°C, and the temperature was kept for 50 minutes. After the heat preservation, the polyester fabric was taken out and washed twice with tap water, and then reduced and cleaned with 2g / L sodium hydroxide and 2g / L sodium hydroxide at 70°C with a bath ratio of 1:50. After 10 minutes, take out the fabric and wash it with water for 6 times, and finally dry the fabric at 80°C.
[0016...
Embodiment 2
[0023] A one-bath low-temperature processing method for polyester alkali weight reduction and dyeing. The polyester is processed by dipping technology in one bath for alkali weight reduction and dyeing. The processing process is as follows: sodium hydroxide, cationic accelerator 1631 (cetyl tri Methyl ammonium bromide), carrier JYK POW, dispersant DN and disperse red 902 were dissolved in water to prepare a dye liquor, and then the polyester fabric was put into the dye liquor with a liquor ratio of 1:20, and then the temperature was raised at 1.5°C / min Raise the temperature to 98°C and keep it warm for 40 minutes. After the heat preservation is over, take out the polyester fabric and wash it with tap water for 5 times, and then use 2g / L sodium hydroxide and 2g / L sodium hydroxide to reduce and wash it for 10 minutes at 75°C with a bath ratio of 1:50. Then take out the fabric and wash it twice with water, and finally dry the fabric at 70°C.
[0024] The dye solution prescription...
Embodiment 3
[0031] A one-bath low-temperature processing method for polyester alkali weight reduction and dyeing. The dipping process is used to perform alkali weight reduction dyeing of polyester in one bath. The processing process is as follows: sodium hydroxide, cationic accelerator SN (octadecyl Methyl hydroxyethyl quaternary ammonium nitrate), carrier TF-258, dispersant DN and disperse blue 825 were dissolved in water to prepare a dye solution, and then the polyester fabric was put into the dye solution with a bath ratio of 1:10, and then 2 The heating rate of ℃ / min is raised to 100 ℃, and the temperature is kept for 30 minutes. After the heat preservation is completed, the polyester fabric is taken out and washed 3 times with tap water, and then 2g / L sodium hydroxide and 2g / L sodium hydroxide are used at 80 ℃ with a bath ratio of 1:50. Reduce and wash for 10 minutes, then take out the fabric and wash it with water for 4 times, and finally dry the fabric at 75°C.
[0032]
[0033] T...
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Abstract
Description
Claims
Application Information
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