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Alcoholic group liquid ink capable of realizing high-speed printing and preparation method thereof

A high-speed printing, alcohol-based technology, used in inks, household appliances, applications, etc., can solve problems such as increased mechanical volume and energy consumption

Active Publication Date: 2011-07-06
杭华油墨股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from the perspective of printing machinery design, because printing usually has 8-color or even more than 12-color color groups, it is obviously not the best choice to strengthen the oven between each color group, which will lead to mechanical volume and energy consumption. The more optimized design is not to make a particularly large change to the oven between each color group, but to install an oven in the final printing stage, so as to realize the thorough drying of the printed matter as a whole

Method used

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  • Alcoholic group liquid ink capable of realizing high-speed printing and preparation method thereof
  • Alcoholic group liquid ink capable of realizing high-speed printing and preparation method thereof
  • Alcoholic group liquid ink capable of realizing high-speed printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: Weigh 9 parts of nitrocellulose with a specification of 1 / 8 second (all refer to weight ratio in the following formulations), 11 parts of ethanol, and 10 parts of ethyl acetate, mix well and use a high-speed mixer to stir for more than 60 minutes until the resin is completely Dissolve to obtain 30 parts of nitrocellulose resin solution A; weigh 8 parts of alcohol-soluble polyamide resin and 12 parts of isopropanol, mix evenly and use a high-speed mixer to stir for more than 120 minutes until the resin is completely dissolved to obtain 20 parts of polyamide resin solution B;

[0028] Weigh 30 parts of the dissolved nitrocellulose resin solution A and 20 parts of the polyamide resin solution B, then weigh 15 parts of ethanol, 5 parts of butyl acetate, 10 parts of phthalocyanine blue pigment, 0.5 parts of polyethylene micropowder wax, dispersant 1 part; after mixing evenly, use a closed bead mill dispersant to grind until the maximum particle size of the pigment ...

Embodiment 2

[0041] Take by weighing 4 parts of hydroxyl acrylic resin (all refer to weight ratio in the following formula), 6 parts of ethanol, after mixing evenly, use high-speed mixer to stir for more than 60 minutes until the resin is completely dissolved, add polyurethane resin liquid (30% solid part, solvent is 50 % isopropanol, 20% n-propyl acetate 35%) 30 parts, titanium dioxide 30 parts, polyethylene micropowder wax 0.5 parts, n-propanol 10 parts, after mixing evenly, use a closed bead mill dispersant to grind to the largest pigment Particle size ≤ 15 microns, stop grinding, cool the ink temperature to room temperature, weigh 11 parts of n-propanol, 5.5 parts of propylene glycol methyl ether acetate, 2 parts of fumed silica, isopropoxyethoxy diacetylacetonate titanate 1 portion, fully stirred evenly, after the inspection is completed, filter and pack.

[0042] The drying speed of the solvent used in the above-mentioned formula, with butyl acetate as the reference solvent (assuming...

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Abstract

The invention discloses an alcoholic group liquid ink capable of realizing high-speed printing, which comprises the components by weight percent: 5-20% of solid resin, 20-85% of alcohols solvent, 2-60% of non-alcohols solvent, 5-40% of pigment, 0-10% of accessory ingredient, 0.5-5% of cross-linking agent and 0.5-6% of gas-phase silicon dioxide. The cross-linking agent is added into a former-colorink during overprinting, so that the cross-linking reaction is performed during drying, the molecular weight of carrier (comprising dispersing agent) resin in the ink is fast increased, the carrier (comprising dispersing agent) resin can not be dissolved or can be hardly dissolved in the dissolvent in the ink, and a later-color ink can not be fast dissolved in the former-color ink during contacting in an overlapping way, therefore, the overprinting working procedure can be smoothly completed.

Description

technical field [0001] The present invention relates to an alcohol-based liquid ink having excellent printability for rotogravure and satellite flexographic printing, especially at high speed printing. Background technique [0002] With the development of printing technology and the printing industry's emphasis on production efficiency, energy saving and other issues, the domestic printing industry is rapidly moving to high-speed printing (that is, rotary gravure printing at 200-300m / min and above, satellite flexo printing at 400~600m / min and above) field development. We already know that because the printing plate needs to run at high speed during high-speed printing, in order for the ink to be scraped off the printing plate by the scraper, the ink must have a very low viscosity. When re-entering the ink tank after printing (at this time, there is still some dry ink left in the graphic department), it can be re-dissolved, and the ink must have the characteristics of rapid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10C09D11/14C09D11/08C09D11/033C09D11/102C09D11/106C09D11/107
Inventor 林日胜
Owner 杭华油墨股份有限公司
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