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Liquid ink composition, printed matter and laminated laminate

A technology for printed materials and inks, applied in the field of liquid ink compositions, to achieve excellent ink transferability, lamination strength, and easy recycling

Active Publication Date: 2020-12-18
DAINIPPON INK & CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these are compositions obtained by simplifying and simplifying the solvent composition in order to facilitate solvent recovery, and it is difficult to say the basic properties such as ink transferability and lamination strength required for printing inks when printing these compositions. absolutely full

Method used

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  • Liquid ink composition, printed matter and laminated laminate
  • Liquid ink composition, printed matter and laminated laminate
  • Liquid ink composition, printed matter and laminated laminate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0165] 10.00 parts of Fastogen Blue FA5375, 30.00 parts of n-propyl acetate 15% solution (V1) of vinyl chloride vinyl acetate copolymer resin, 10.00 parts of n-propyl acetate / n-propanol mixed solvent (weight ratio 90 / 10) were stirred and mixed After kneading by a paint preparation machine, 30.00 parts of polyurethane resin composition X1 and 20.00 parts of n-propyl acetate / n-propanol mixed solvent (weight ratio 90 / 10) were stirred and mixed to obtain a blue ink composition. This was diluted with n-propyl acetate, and adjusted to 16 seconds at 25° C. in Zion cup #3 (manufactured by Seiko Co., Ltd.).

[0166] Next, according to the combination in Table 3, use the same steps as in Example 1 to prepare the inks of Examples 2-7, prepare the inks of Examples 8-14 according to the combination in Table 4, and prepare according to the combination in Table 5 The inks of Comparative Examples 1, 3-5. It should be noted that Examples 8 to 14 and Comparative Example 2 were diluted with eth...

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Abstract

The present invention addresses the problem of providing a liquid ink composition which facilitates recovery of volatile solvents in the ink composition and which has both excellent ink transferability and laminate strength. The present invention provides a liquid ink composition comprising a polyurethane resin (A) and an organic solvent (B), characterized in that the polyurethane resin (A) includes, as reactive materials, an alkanolamine, a polyester polyol, and / or a polyether polyol, has a weight average molecular weight in a range of 30000 to 70000, a urea bond concentration of 0.8 mmol / g or less, and a hydroxyl value of 11.0 mgKOH / g or less.

Description

technical field [0001] The present invention relates to a liquid ink composition in gravure ink and flexo ink used for lamination for flexible packaging. In particular, it relates to a liquid ink composition which facilitates the recovery of volatile solvents in the ink composition and has both excellent ink transferability and lamination strength. Background technique [0002] In recent years, air pollution problems associated with substances such as nitrogen oxides that reduce stratospheric ozone surrounding the earth's environment and conversely increase tropospheric ozone, and forest damage caused by acid rain that is believed to be involved in photochemical ozone, etc., On the other hand, VOC is a general term for volatile organic compounds, which are not only related to air pollution, global warming, and other environmental problems, but also from the aspects of human impact and labor hygiene. All kinds of problems arise. [0003] In the gravure printing and flexogra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/10B41M1/30
CPCB41M1/30C09D11/10
Inventor 进藤朋美大桥富宏渡边敏生田口信吉川岛康成
Owner DAINIPPON INK & CHEM INC
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