Coating oil fo alcohol soluble intaglio paper box pre-printing

An overcoat varnish and alcohol-soluble technology, applied in the field of overcoat varnish, can solve the problems of high temperature resistance of corrugated composites, inability to guarantee inter-batch stability, and low production efficiency.

Inactive Publication Date: 2005-05-18
山西精华科工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention is to solve the problem that the carton pattern printed by traditional ink is not rich enough, the color is not bright enough, and the production efficiency is low, the stability between batches cannot be guaranteed, and the corrugated composite is not resistant to high temperature, scratches, and poor waterproof.

Method used

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  • Coating oil fo alcohol soluble intaglio paper box pre-printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Nitrocellulose 10%

[0023] Thermoplastic methyl methacrylate resin 16%

[0024] Dioctyl phthalate 4%

[0025] Polyolefin Wax 0.4%

[0026] Modified Silicone 1.3%

[0027] Ethyl acetate 20%

[0028] Absolute Ethanol 48.3%

[0029] The invention discloses a method for preparing an alcohol-soluble gravure carton pre-printing varnish, which comprises pre-dissolving nitrocellulose and thermoplastic acrylic resin in a mixed solvent of ethyl acetate and absolute ethanol, then adding the remaining components and fully stirring evenly.

Embodiment 2

[0031] Nitrocellulose 8%

[0032] Ethylene / vinyl acetate 18%

[0033] Dioctyl phthalate 4%

[0034] Polyolefin Wax 0.7%

[0035] Modified Silicone 1.1%

[0036] Isopropyl acetate 10%

[0037] Isopropanol 58.2%

[0038] A method for preparing alcohol-soluble gravure carton pre-printed varnish, pre-dissolving nitrocellulose and ethylene / vinyl acetate resin in a mixed solvent of isopropyl acetate and absolute ethanol, then adding the remaining components, and fully stirring evenly .

Embodiment 3

[0040] Nitrocellulose 6%

[0041] Polyurethane resin 21%

[0042] Dioctyl phthalate 4%

[0043] Polyolefin Wax 1.0%

[0044] Modified Silicone 0.8%

[0045] Isopropyl acetate 15%

[0046] n-propanol 52.2%

[0047] The invention discloses a method for preparing an alcohol-soluble gravure carton pre-printing varnish, which comprises pre-dissolving nitrocellulose and polyurethane resin in a mixed solvent of isopropyl acetate and absolute ethanol, then adding the remaining components and fully stirring evenly.

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PUM

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Abstract

The alcohol soluble paper box pre-printing coating oil consists of nitrocellulose 5-10 wt%, thermoplastic methyl methacrylate 15-23 wt%, dicapryl phthalate 2-6 wt%, polyolefin water 0.2-1.0 wt%, modified organosilicon 0.5-2.0 wt%, ethyl acetate 10-20 wt% and absolute enthanol 38-67.3 wt%. The preparation process includes dissolving nitrocellulose and thermoplastic methyl methacrylate in the mixed solvent of ethyl acetate and absolute enthanol, and adding the other components via stirring. The present invention adopts special pigment fining and coating technology and can print various patterns on paper box with bright colors and high efficiency.

Description

1. Technical field: [0001] The invention belongs to a varnish, in particular to a pre-printed varnish for gravure cartons. 2. Background technology [0002] The traditional method of producing colored corrugated cartons is to directly use flexo printing technology to print on die-cut cartons. This method has low production efficiency, and the resulting cartons have simple patterns and dull colors, and can only be used in some low-end occasions. [0003] Later, the use of lithographic pre-printing technology to produce cartons appeared, that is, firstly, offset printing is used on the single-piece carton surface paper, and then the printed surface paper is combined with corrugated paper by a laminating machine, and then die-cut into various box shapes. . The cartons made by this method are relatively rich in patterns and bright in color, but the production efficiency is still extremely low. The biggest defect is that it cannot guarantee the stability between batches, or even...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M1/10B41M7/02C09D133/12
Inventor 王尔健白鹏飞王重声
Owner 山西精华科工贸有限公司
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