Preparation method of solvent-based nano-carbon black paste
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A technology of nano-carbon and black paste, applied in the direction of pigment paste, etc., can solve the problems such as the transparency of the paste does not meet the technical requirements, contains pathogenic substances, and heavy metals exceed the standard, so as to achieve good polishing performance, improve leveling, reduce Shrinkage effect
Inactive Publication Date: 2013-04-03
广州市番禺科迪色彩有限公司
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[0002] At present, children's toys, leather products, furniture, printed products, printing inks or inkjet painting mostly use dyes or metal complex dyes. Most dyes have problems such as heavy metals exceeding the standard, containing pathogenic substances, temperature resistance, light resistance, and migration resistance. Poor performance, can not meet people's pursuit of healthy life quality; many products require high transparency, high performance, environmental protection, etc. for coating, the standard requirements are getting higher and higher, and the transparency of ordinary pigment pastes does not meet the technical requirements
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Embodiment 1
[0016] Add solvent MIBK, PMA and n-butyl acetate into the dispersing tank according to Example 1 in Table 1 according to the formula weight ratio, and add CAB-381-0.5 resin and dispersant under stirring 4320, stir evenly in a high-speed disperser at a speed of 500r / min, then add carbon black REGAL400R powder at a high speed of 1000-1200r / min, disperse at a high speed for 45-60min, and then grind in a nano-disperser for 8-12h, every Use a laser particle size analyzer for particle size detection every 0.5h until the particle size of the color paste is D 50 Between 40-150nm, filter and package to obtain solvent-based nano carbon black slurry.
Embodiment 2
[0017] Example 2, Example 3 The preparation steps refer to Example 1.
[0018] According to relevant national standards, the performance of the solvent-based nano-carbon black paste of the present invention was tested, and the test results are shown in Table 2.
[0019] Table 1 Basic performance test results of solvent-based nano-carbon black paste
[0020]
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Abstract
The invention relates to a preparation method of solvent-based nano-carbon black paste. The solvent-based nano-carbon black paste comprises the following basic formation: 6-20% of CAB (cellulose acetate butyrate) resin, 3-15% of wetting dispersant, 6-25% of carbon black pigment and 65-80% of solvent; and the grain diameter D50 of the solvent-based nano-carbon black paste is controlled to be 40-150nm. The nano-carbon black paste has the characteristics of good storage stability, high coloring capability, high transparency, good compatibility and the like, can substitute metal complex dyes, is widely used as a surface coating colorant for packaging materials for children toys, furniture, leather and cloth products, plastic products, metal products, metal coils, aluminum foils and plating films, cigarette packets, candies, food, paper boards and the like, and can be also used as a transparent colorant for gold-stamped films, glass products, high-grade metal baking paint, plastic baking paint and UV (ultraviolet) vacuum coating paint, as well as a colorant for printing ink, jetting ink and the like.
Description
technical field [0001] The invention relates to a preparation method of a solvent-type nano-carbon black paste, in particular to a multi-purpose, transparent nano-carbon black paste that can replace metal complex black dyes. Background technique [0002] At present, children's toys, leather products, furniture, printed products, printing inks or inkjet painting mostly use dyes or metal complex dyes. Most dyes have problems such as heavy metals exceeding the standard, containing pathogenic substances, temperature resistance, light resistance, and migration resistance. Poor performance, can not meet people's pursuit of healthy life quality; many products require high transparency, high performance, environmental protection, etc. for coating, the standard requirements are getting higher and higher, and the transparency of ordinary pigment pastes does not meet the technical requirements. Therefore, it is particularly necessary to develop a nano-carbon black paste that is environ...
Claims
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