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Low-VOC easy-to-offset-printing cold wave release layer coating and preparation method thereof

A technology of offset printing cold stamping and release layer, which is applied to polyester coatings, coatings, etc., can solve the problems of unstable peeling performance, large film breaking force, and poor offset printing performance, and achieve good peeling performance, simple production process, and easy production The effect of low process requirements

Inactive Publication Date: 2016-12-14
SHANGHAI WEIKAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the cold-ironing release layers on the market use polyurethane systems, which have the problems of unstable peeling performance, high film breaking force and poor offset printing performance.

Method used

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  • Low-VOC easy-to-offset-printing cold wave release layer coating and preparation method thereof
  • Low-VOC easy-to-offset-printing cold wave release layer coating and preparation method thereof
  • Low-VOC easy-to-offset-printing cold wave release layer coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0036] The present examples 1-5 relate to a kind of low-VOC easy offset cold ironing release layer coating, which is a water-based laser anodized aluminum coating without a release layer, and its preparation specifically includes the following steps:

[0037] (1) prepare materials according to the (weight parts) raw materials of each component and content in the following table 1;

[0038] Table 1

[0039]

[0040] (2) Add the organic solvent into the reaction kettle, turn on the mixer to a medium speed of 750-800 rpm, and keep the temperature at 40°C-80°C;

[0041] (3) Add acrylic resin, alkyd resin, styrene-maleic anhydride resin, stir at a high speed of 1000-1200 rpm, and keep stirring at a constant temperature of 40°C-80°C for 40 minutes;

[0042] (4) Add cellulose ester resin, stir at a high speed of 1000-1200 rpm at a constant temperature of 40°C-80°C for 40 minutes, and filter through a 250-320 mesh filter to obtain the low-VOC easy-offset cold-ironing release layer...

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Abstract

The invention provides a low-VOC easy-to-offset-printing cold wave release layer coating and a preparation method thereof. The coating is prepared from the following components in percentages by weight: 10% to 20% of acrylic resin, 10% to 20% of cellulose ester resin, 0% to 10% of alkyd resin, 0% to 10% of styrene-maleic anhydride resin and 60% to 80% of an organic solvent. Compared with the prior art, the coating has the advantages of adjustable and controllable stripping quality, excellent offset printing performance and low raw material cost; moreover, the coating adopts a benzene-free system, and has the characteristic of low VOC content.

Description

technical field [0001] The invention relates to the technical field of anodized aluminum coatings, and relates to a low-VOC easy-offset cold-ironing release layer coating and a preparation method thereof. Background technique [0002] Cold stamping technology refers to the method of using UV adhesive to transfer the hot stamping foil to the printing material. The anodized aluminum used in cold stamping is a special anodized aluminum. At the position where decoration is required, when transferring, the anodized aluminum is in contact with the adhesive, and under the action of the adhesive, the anodized aluminum is attached to the surface of the printed matter. [0003] Compared with traditional hot stamping technology, cold stamping technology has very obvious advantages, which are mainly reflected in the following aspects: [0004] 1. The cold stamping speed is fast, the general speed can reach more than 100 m / min, while the general hot stamping speed is only 60 m / min; [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D101/14C09D167/08C09D135/06C09D7/12
CPCC08L2205/03C08L2205/035C09D101/14C09D133/00C09D7/65C08L1/14C08L67/08C08L33/00C08L35/06
Inventor 董海普韩亚魁吴小娟
Owner SHANGHAI WEIKAI CHEM
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