Nano-printing ink for digital code spray printing and its preparation method
A digital inkjet printing and digital inkjet technology, applied in inks, applications, household appliances, etc., can solve the problems of scientific research units and universities such as Beijing Institute of Fashion Technology, Zhejiang University, Shanghai Dyestuff Research Institute and Shenyang Chemical Industry Research Institute and other units. There are no issues such as the listing of pigment-based digital inkjet printing inks, and the listing of inks with independent property rights, to achieve the effects of high thermal stability and chemical stability, great development prospects, good water resistance and soap resistance.
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Embodiment 1
[0037] In a three-necked flask equipped with a reflux condensing device and a stirrer, carefully add 17.7 mL of distilled water to 10 mL of trichloromethylsiloxane and 60 mL of acetone under stirring conditions, and stir in a water bath at 50 ° C for 48 hours, and the reaction is completed Afterwards, the collected white solid was washed with acetone and filtered, and then vacuum-dried overnight at 45 ° C. The product was suspended with 20 times the weight of pyridine and stirred overnight, and the pyridine solution was poured into a mixture of an equal volume of concentrated hydrochloric acid and ice, and then The collected precipitate was washed with water until neutral, and dried under vacuum at 60° C. overnight. Thorough extraction with diethyl ether can obtain unmodified POSS; 0.025 g / mL γ-acryloyloxytrimethoxysilane (KH-570) in tetrahydrofuran solution, reacted in 35°C water bath for 72 hours. The product was poured into a 10-fold mixed solution of ice water and concent...
Embodiment 2
[0040] Same as Example 1, but the trichloromethylsiloxane was changed to trichlorophenylsiloxane, and the dosage was changed to 15 mL.
Embodiment 3
[0042] Same as Example 1, but the acryloyloxytrimethoxysilane was changed to methylvinyltrichlorosiloxane, and the concentration and dosage remained unchanged.
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