Printing ink for offset lithography and preparation method thereof
A technology of offset printing ink and flat plate, applied in ink, household utensils, applications, etc., can solve the problems of light printing color, pigment dispersion defects, and affecting printing uniformity, and achieve good dispersion, fast drying speed, safety and non-toxicity cost effect
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[0019] Example 1
[0020] A flat offset printing ink prepared in parts by weight of the following components: 30 parts of polyurethane, 20 parts of phenolic epoxy acrylate, 4 parts of epoxidized oil propionate, 5 parts of drier, 17 parts of pigment, 1 part of coupling agent, 0.6 part of antioxidant, 1.5 part of dispersant and 6 parts of graphene.
[0021] In this embodiment, the graphene is at least one of spherical, sheet, tubular, fibrous, spiral, and three-dimensional, and its particle size ranges from 0.005 μm to 10,000 μm. The novolac epoxy acrylate is a bisphenol A modified novolac epoxy acrylate. The polyurethane is an epoxy modified waterborne polyurethane hybrid emulsion. The coupling agent is a silane coupling agent or an aluminate coupling agent. The antioxidant is nano-copper / PTFE composite material. The drier is a mixed crystal or solid solution of the reaction product of ligand 3,7-diazabicyclo[3.3.1]nonane and metal chloride. The dispersant is dispersant HY-304....
Example Embodiment
[0023] Example 2
[0024] A flat offset printing ink prepared by weight of the following components: 25 parts of polyurethane, 10 parts of phenolic epoxy acrylate, 6 parts of epoxidized oil propionate, 4 parts of drier, 15 parts of pigment, 3 parts of coupling agent, 0.45 parts of antioxidant, 1 part of dispersant and 8 parts of graphene.
[0025] Furthermore, it is prepared from the following components in parts by weight: 20-30 parts of polyurethane, 20-25 parts of phenolic epoxy acrylate, 5 parts of epoxidized oil propionate, 4 parts of drier, 15-parts of pigment 20 parts, 2-3 parts coupling agent, 0.3-0.6 parts antioxidant, 1-2 parts dispersant, and 7 parts graphene.
[0026] In this embodiment, the graphene is at least one of spherical, sheet, tubular, fibrous, spiral, and three-dimensional, and its particle size ranges from 0.005 μm to 10,000 μm. The novolac epoxy acrylate is a bisphenol A modified novolac epoxy acrylate. The polyurethane is an epoxy modified waterborne poly...
Example Embodiment
[0028] Example 3
[0029] A flat offset printing ink prepared by weight parts of the following components: 20 parts of polyurethane, 30 parts of phenolic epoxy acrylate, 5 parts of epoxidized oil propionate, 3 parts of drier, 20 parts of pigment, 2 parts of coupling agent, 0.3 parts of antioxidant, 2 parts of dispersant and 7 parts of graphene.
[0030] In this embodiment, the graphene is at least one of spherical, sheet, tubular, fibrous, spiral, and three-dimensional, and its particle size ranges from 0.005 μm to 10,000 μm. The novolac epoxy acrylate is a bisphenol A modified novolac epoxy acrylate. The polyurethane is an epoxy modified waterborne polyurethane hybrid emulsion. The coupling agent is a silane coupling agent or an aluminate coupling agent. The antioxidant is nano-copper / PTFE composite material. The drier is a mixed crystal or solid solution of the reaction product of ligand 3,7-diazabicyclo[3.3.1]nonane and metal chloride. The dispersant is dispersant HY-304.
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