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Resin for two-piece can white ink, and two-piece can white ink and preparation method thereof

A two-piece can, white ink technology, used in applications, inks, household appliances, etc., can solve the problems of paste, poor dot restoration, etc., achieve good acid resistance, improve coverage and transfer, and excellent adhesion.

Inactive Publication Date: 2020-05-19
上海超彩油墨有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of resin for two-piece can white ink, two-piece can white ink and preparation method thereof, described this two-piece can white ink resin, two-piece can white ink and preparation method thereof will solve the problems in the prior art When the two-piece cans of white ink produce gradient dot patterns, it is always easy to have poor dot restoration, resulting in paste and affecting the production of technical problems

Method used

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  • Resin for two-piece can white ink, and two-piece can white ink and preparation method thereof
  • Resin for two-piece can white ink, and two-piece can white ink and preparation method thereof
  • Resin for two-piece can white ink, and two-piece can white ink and preparation method thereof

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Experimental program
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Effect test

preparation example Construction

[0047] The invention provides a kind of preparation method of resin for two-piece can white ink, specifically comprises the following steps:

[0048] Weigh saturated fatty acid, trimethylolpropane, phthalic anhydride, neopentyl glycol, glycol, isophthalic acid, antioxidant, catalyst, xylene,

[0049] Nitrogen is passed through the reaction kettle, then xylene, neopentyl glycol, trimethylolpropane and saturated fat are added into the reaction kettle, and heated to 75-85°C;

[0050] Then add phthalic anhydride, dibasic alcohol, isophthalic acid, antioxidant in turn under stirring, and then add the catalyst;

[0051] Raise the temperature to 148-152°C and keep it warm for 1H;

[0052] Heating up to 158~162℃, reflux with water for 2H;

[0053] Raise the temperature to 168-172°C and keep it warm for 0.5H;

[0054] Raise the temperature to 178~182℃, keep it warm for 2H;

[0055] Raise the temperature to 198-202°C and keep it warm for 1H;

[0056] When the system is carried out ...

Embodiment 1

[0061] The preparation method of hydroxyl short oil alkyd resin is as follows:

[0062] Prepare hydroxyl short oil alkyd resin, each component weight percent content is as follows:

[0063]

[0064]

[0065] Nitrogen is passed, then xylene, neopentyl glycol, trimethylolpropane, and coconut oil fatty acid are added to the reaction kettle, and heated to 75-85°C;

[0066] Then add phthalic anhydride, diethylene glycol, isophthalic acid, dibutyl hydroxytoluene in turn under stirring, and then add dibutyltin oxide;

[0067] Raise the temperature to 148-152°C and keep it warm for 1H;

[0068] Heating up to 158~162℃, reflux with water for 2H;

[0069] Raise the temperature to 168-172°C and keep it warm for 0.5H;

[0070] Raise the temperature to 178~182℃, keep it warm for 2H;

[0071] Raise the temperature to 198-202°C and keep it warm for 1H;

[0072] When the system is carried out without water, take a sample to measure the acid value ≤ 25mgKOH / g, and stop the reaction; ...

Embodiment 2

[0077] The present invention provides a method for preparing two-piece can white ink based on the special-purpose hydroxyl short oil alkyd resin of Example 1, and the weight percentage content of each component is as follows:

[0078]

[0079]

[0080] The preparation method is as follows:

[0081] Add hydroxyl short-oil alkyd resin (prepared in Example 1), amino resin, organic solvent, and additives into the stirring pot, stir evenly, and then add titanium dioxide and filler while stirring. Stir for another 30 minutes after adding the solid material, and then grind with a three-roll machine. Grind repeatedly four times first, and check the fineness. When the fineness is less than 3 μm, stop grinding; if it is greater than 3 μm, continue grinding until the detection is less than 3 μm. If the fineness is qualified, then add the catalyst to the ink and stir it evenly with a stirrer. Then test the viscosity, splash, hue, and dryness, and pack it after passing the test.

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Abstract

The invention provides hydroxyl short-oil alkyd resin. The hydroxyl short-oil alkyd resin is prepared from saturated fatty acid, trimethylolpropane, phthalic anhydride, neopentyl glycol, dihydric alcohol, isophthalic acid, an antioxidant, a catalyst and xylene. The invention also provides a preparation method of the hydroxyl short-oil alkyd resin. The invention further provides the two-piece can white ink. The two-piece can white ink is prepared from hydroxyl short-oil alkyd resin, amino resin, an organic solvent, a catalyst, titanium dioxide, filler and auxiliaries. The invention also provides a preparation method of the white ink. According to the invention, the printing adaptability such as white ink covering and transferability, dot reducibility and the like of the existing two-piece can ink is improved, and the problems of plate pasting and the like caused by low cohesion of the ink are improved. Meanwhile, the pigment powder is good in wettability, high in surface hardness afterbeing cured, high in adhesive force and good in yellowing resistance.

Description

technical field [0001] The invention belongs to the field of chemical industry, and relates to a two-piece can ink for letterpress offset printing, in particular to a resin for two-piece can white ink, a two-piece can white ink and a preparation method thereof. Background technique [0002] Glass bottles have always been the traditional packaging containers in the bottle wine industry, but now, canned beer has quickly gained the upper hand due to its convenience in sales and carrying, easier recycling than glass bottles, safer transportation and storage, and cost savings. The market size growing. In recent years, with the continuous improvement of the consumption level of Chinese people, the sales volume of beer has also been continuously increased, which has led to the increase in the market penetration rate of two-piece can packaging. [0003] According to the current consumption level in my country and the production capacity of two-piece cans, the production capacity of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/20C08G63/85C09D11/105
CPCC08G63/20C08G63/85C09D11/105
Inventor 杜坤扬张龙斌
Owner 上海超彩油墨有限公司
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