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Printing ink composition for seamless can

A technology for printing inks and seamless cans, applied in inks, coverings/external coatings, household appliances, etc., can solve problems such as coagulation and inability to fully stabilize the pigment dispersion state, and achieve inhibition of coagulation, good coating physical properties, and stability The effect of wet coating suitability

Active Publication Date: 2013-05-15
MATSUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In these methods, the wettability of the water-based overprint varnish becomes better, but the dispersion state of the pigment in the ink cannot be sufficiently stabilized, and aggregation occurs under some conditions of use.

Method used

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  • Printing ink composition for seamless can
  • Printing ink composition for seamless can
  • Printing ink composition for seamless can

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0071] Production Example 1 [Manufacture of Raw Material Fatty Acid Modified Polyester (B-1)]

[0072] 29.0 parts of phthalic anhydride, 18.0 parts of trimethylolpropane, 18.0 parts of pentaerythritol, 42.0 parts of coconut oil fatty acid, and 10.0 parts of mixed xylene (xylol) were added to a four-necked flask with a stirrer, and the Mixed xylenes were refluxed, and the esterification reaction was carried out at a temperature of 220 to 230° C. until the acid value reached 2 mgKOH / g. After the reaction, the mixed xylenes were distilled off at 240° C. to obtain a liquid raw material fatty acid-modified polyester (B-1).

[0073] The fatty acid modification amount (%), acid value (mgKOH / g) and hydroxyl value (mgKOH / g) of the raw material fatty acid modified polyester are shown in Table 1.

manufacture example 2～12

[0074] Production examples 2 to 12 [production of raw material fatty acid modified polyester (B-2) to (B-12)]

[0075] Using intramolecular anhydrides of polybasic acids, polyhydric alcohols, and fatty acids shown in Table 1, raw material fatty acid-modified polyesters (B-2) to (B-12) were produced under the same conditions as (B-1).

[0076] The fatty acid modification amount (%), acid value (mgKOH / g) and hydroxyl value (mgKOH / g) of these raw fatty acid modified polyesters are shown in Table 1.

[0077] [Table 1]

[0078]

manufacture example 13

[0079] Production Example 13 [Manufacture of Polybasic Acid Addition Fatty Acid Modified Polyester (A-1)]

[0080] Put 95.2 parts of raw material fatty acid modified polyester (B-1) into a four-necked flask, add 4.8 parts of trimellitic anhydride at a temperature of 170°C under stirring, and perform an addition reaction for 10 minutes to produce a transparent liquid multi-component The acid-added fatty acid-modified polyester (A-1) has a fatty acid modification amount of 40.0%, a hydroxyl value of 172 mgKOH / g, an acid value of 27 mgKOH / g, and a styrene-equivalent weight average molecular weight of 6,000.

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Abstract

Disclosed is a printing ink composition for a seamless can that has excellent printing suitability such as excellent transferability and onboard stability and excellent coating stability and can impart good film properties. The printing ink composition for a seamless can comprises a polybasic acid added aliphatic acid modified polyester (A) having an aliphatic acid modification amount of 35 to 65% by mass, a hydroxyl value of 60 to 200 mgKOH / g, an acid value of 10 to 60 mgKOH / g, and a weight average molecular weight of 3000 to 30000 in terms of styrene. Also disclosed is a method for coating a seamless can using the ink.

Description

technical field [0001] The present invention relates to a seamless can printing ink composition. The seamless can printing ink composition has excellent printing suitability and coating stability such as transferability and on-machine stability, and can provide good coating physical properties. The present invention also It relates to a method of coating a seamless can using the ink. Background technique [0002] Seamless cans are widely used as packaging containers for juice drinks, soft drinks, carbonated drinks, alcoholic drinks such as beer, and food. The outer peripheral surface of the seamless can is decorated to increase the value of the product, and the cylindrical metal can is printed and coated for the purpose of preventing corrosion, etc. [0003] In addition, for the purpose of further decoration, printing may be performed after silver coating or white coating, and a top varnish may be wet-coated. Therefore, inks for seamless cans are required to be able to bon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/10B65D25/20B65D25/34C09D11/037C09D11/104
CPCC09D11/104
Inventor 马场慎一郎岩本卓也后田浩吉
Owner MATSUI CHEM CO LTD