Dyeing and printing additive and preparation method thereof
A technology of printing and dyeing auxiliaries and emulsifiers, which is applied in the field of textile printing and dyeing, can solve the problems of not easy resistance to acid, alkali, oxidant and high temperature, color enhancement, unsatisfactory color protection performance, and poor dye shedding effect, and achieves low price and printing and dyeing effect. Significant, less demanding effect of reaction equipment
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Embodiment 1
[0032] A printing and dyeing auxiliary made from the following parts by weight of raw materials: 10 parts of modified trimethylol acrylamide-vegetable oil copolymer, 1020 parts of modified polyquaternary ammonium salt, 70 parts of water, and 93 parts of emulsifier AEO-93 .
[0033] The preparation method of the modified trimethylolacrylamide-vegetable oil copolymer includes the following steps:
[0034] Ⅰ. Add 20 g of N-trimethylol acrylamide, 5 g of peanut oil, and 0.3 g of azobisisobutyronitrile to 80 g of dimethyl sulfoxide, stir and react for 4 hours at 60°C under nitrogen atmosphere, and then precipitate in acetone , And washed with dichloromethane 3 times, and then placed in a vacuum drying oven at 70°C for 10 hours to obtain a copolymer;
[0035] Ⅱ. Add 10 g of the copolymer prepared in step I, 2 g of octadecyl isocyanate, and 2 g of dibutyl tin dilaurate to 40 g of dimethyl sulfoxide, stir and react at 85°C for 5 hours, and then settle in acetone It is filtered off with suc...
Embodiment 2
[0042] A printing and dyeing auxiliary agent, which is made of the following parts by weight of raw materials: 11 parts of modified trimethylol acrylamide-vegetable oil copolymer, modified polyquaternary ammonium salt-1021 parts, 72 parts of water, and emulsifier AEO-33.5 parts .
[0043] The preparation method of the modified trimethylolacrylamide-vegetable oil copolymer includes the following steps:
[0044] Ⅰ. Add 23g of N-trimethylolacrylamide, 5g of soybean oil, and 0.35g of azobisisoheptonitrile to 90g of N,N-dimethylformamide, and stir for 4.5 hours at 63°C under helium atmosphere. , Then precipitated in acetone, washed with dichloromethane 4 times, and then placed in a vacuum drying oven at 73°C for 11 hours to obtain a copolymer;
[0045] Ⅱ. Add 10 g of the copolymer prepared in step I, 2.3 g of octadecyl isocyanate, and 2 g of stannous octoate to 52 g of dimethyl sulfoxide, stir and react at 88°C for 5.5 hours, and then precipitate in acetone. Suction filtration, rotary e...
Embodiment 3
[0052] A printing and dyeing auxiliary made from the following raw materials by weight: 13 parts of modified trimethylol acrylamide-vegetable oil copolymer, modified polyquaternary ammonium salt-1023 parts, 76 parts of water, and emulsifier OP-104 parts .
[0053] The preparation method of the modified trimethylolacrylamide-vegetable oil copolymer includes the following steps:
[0054] Ⅰ. Add 25 g of N-trimethylol acrylamide, 5 g of linseed oil, and 0.41 g of azobisisobutyronitrile to 100 g of N-methylpyrrolidone, and stir and react for 5 hours at 65°C under a neon atmosphere. Precipitated in acetone, washed with dichloromethane 3 times, and then placed in a vacuum drying oven at 75°C for 13 hours to obtain a copolymer;
[0055] Ⅱ. Add 10 g of the copolymer prepared in step I, 2.6 g of octadecyl isocyanate, and 2 g of triethylamine to 62 g of dimethyl sulfoxide, stir and react at 90°C for 6.2 hours, and then precipitate in acetone. Suction filtration, rotary evaporation to remove t...
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