Preparation method for raw material used for printing ink
A raw material and ink technology, applied in the field of preparation of ink raw materials, can solve problems affecting ink performance, poor dispersion, etc.
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Embodiment 1
[0020] A kind of preparation method of printing ink raw material, comprises the steps:
[0021] (1) Pre-emulsify 60 parts by weight of deionized water, 100 parts by weight of mixed monomers and the first part of compound emulsifier for 1 hour to prepare a pre-emulsion. The mixed monomers include methyl methacrylate, styrene, butyl acrylate, A mixture of acrylic acid and hydroxyethyl acrylate, the compound emulsifier uses N-methylol acrylamide;
[0022] (2) Add the second part of compound emulsifier, 30 parts by weight of deionized water, and 0.3 parts by weight of sodium bicarbonate into the reactor equipped with a stirrer, thermometer, reflux condenser and constant pressure dropping funnel, stir and heat up to 83 ℃, add 3wt% of the pre-emulsion and 1 / 3 of the initiator, the mass ratio of the first composite emulsifier to the second composite emulsifier is 2:1, and the initiator includes ammonium persulfate, alkylphenol polyoxyethylene Ether-9 mixture;
[0023] (3) After the...
Embodiment 2
[0025] A kind of preparation method of printing ink raw material, comprises the steps:
[0026] (1) Pre-emulsify 90 parts by weight of deionized water, 150 parts by weight of mixed monomers and the first part of compound emulsifier for 2 hours to prepare a pre-emulsion. The mixed monomers include methyl methacrylate, styrene, butyl acrylate, A mixture of acrylic acid and hydroxyethyl acrylate, the compound emulsifier uses N-methylol acrylamide;
[0027] (2) Add the second part of compound emulsifier, 50 parts by weight of deionized water, and 0.7 parts by weight of sodium bicarbonate into the reactor equipped with a stirrer, thermometer, reflux condenser and constant pressure dropping funnel, stir and heat up to 85 ℃, add 15wt% pre-emulsion and 1 / 3 initiator, the mass ratio of the first composite emulsifier to the second composite emulsifier is 2:1, and the initiator includes ammonium persulfate, alkylphenol polyoxyethylene Ether-9 mixture;
[0028] (3) After the blue phase ...
Embodiment 3
[0030] A kind of preparation method of printing ink raw material, comprises the steps:
[0031] (1) Pre-emulsify 80 parts by weight of deionized water, 120 parts by weight of mixed monomers and the first part of compound emulsifier for 1.5 hours to prepare a pre-emulsion. The mixed monomers include methyl methacrylate, styrene, and butyl acrylate , a mixture of acrylic acid and hydroxyethyl acrylate, and the compound emulsifier uses N-methylol acrylamide;
[0032] (2) Add the second part of compound emulsifier, 40 parts by weight of deionized water, and 0.5 parts by weight of sodium bicarbonate into the reactor equipped with a stirrer, thermometer, reflux condenser and constant pressure dropping funnel, stir and heat up to 84 ℃, add 3wt%-15wt% pre-emulsion and 1 / 3 initiator, the mass ratio of the first composite emulsifier to the second composite emulsifier is 2:1, and the initiator includes ammonium persulfate, alkylphenol Mixtures of polyoxyethylene ether-9;
[0033] (3) A...
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