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Environment-friendly water transfer printing decal paper and preparation method thereof

A water transfer and environment-friendly technology, applied in paper, papermaking, specialty paper, etc., can solve the problems of insufficient and effective treatment of organic solvent waste gas, long drying, drying time, and reduced production efficiency, saving manpower, reducing Solvent emission, the effect of improving production efficiency

Active Publication Date: 2019-03-29
HORIZON SPECIALTY MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These resin coatings are currently solvent-based coatings, and a large amount of organic solvent waste gas will be generated during production and use. In addition, most of the water transfer printing companies in China are small-scale companies, and basically they do not have sufficient and effective treatment of these organic solvents. The ability of solvent waste gas, thus also causing the industry to become a serious environment polluting industry
In addition, the method of screen printing is used to coat and form the coating film, which requires a long drying and drying time, thus greatly reducing production efficiency and increasing costs.

Method used

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  • Environment-friendly water transfer printing decal paper and preparation method thereof
  • Environment-friendly water transfer printing decal paper and preparation method thereof
  • Environment-friendly water transfer printing decal paper and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0043] The preparation process of the existing water transfer printing decal paper is to form the printing layer 2 on the water transfer base paper 1 through screen printing, bronzing or other printing processes to obtain the target printing pattern. Then, a flexible coating film is applied to obtain a cover adhesive layer 3 . The flexible coating film is usually an acrylic resin coating material, which is printed on the pattern by screen printing.

[0044] However, such acrylic resin coatings are currently solvent-based coatings, and a large amount of organic solvent waste gas will be generated during the production and use process. In addition, most domestic water transfer printing companies are small-scale companies. It has the ability to fully and effectively treat these organic solvent waste gases, so it also causes the industry to become an industry that seriously pollutes the environment. In addition, the use of screen printing to form the coating film requires long dr...

Embodiment 1

[0078] (1) Preparation of face film: The mixed resin of 60% LDPE and 40% PE elastomer is made into a film with a tensile strength of 7Mpa and a thickness of 20μm by processing processes such as film blowing, casting, calendering or laminating. The film; and corona treatment on one side to make its surface tension reach 36 dynes or more.

[0079] (2) Preparation of a face film with a self-adhesive layer: select a self-adhesive coating with a normal peel strength of 2-6N / 2.5cm, apply it to the corona-treated surface of the above-mentioned face film by a conventional method, and bake it. Drying, trimming, and winding to prepare a face film with pre-applied self-adhesive.

[0080] (3) To provide a base paper with water transfer properties.

[0081] (4) The base paper is screen-printed to form a printing layer to obtain a target printing pattern.

[0082] (5) and then compound the self-adhesive surface of the above-mentioned face adhesive film on the printing layer 2 by hot press...

Embodiment 2

[0084] (1) Preparation of face film: The mixed resin of 70% LLDPE and 30% PE elastomer is made into a film with a tensile strength of 8Mpa and a thickness of 15μm by processing processes such as film blowing, casting, calendering or laminating. film.

[0085] (2) To provide a base paper with water transfer properties.

[0086] (3) The base paper is formed into a printing layer by bronzing to obtain the target printing pattern.

[0087] (4) Use a self-adhesive coating with a normal peel strength of 2-6N / 2.5cm to print on the above printing pattern, and form a self-adhesive layer after drying.

[0088] (5) compounding the facial adhesive film on the self-adhesive layer by hot pressing to obtain the finished flower paper.

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Abstract

The invention provides an environment-friendly water transfer printing decal paper, which sequentially comprises, from the bottom up, at least one base paper with water transfer performance, a printedlayer disposed on the base paper, a pressure-sensitive adhesive layer arranged on the printed layer, and a surface adhesive film disposed on the pressure-sensitive adhesive layer. Specifically, the bonding force between the pressure-sensitive adhesive layer and the surface adhesive film is c, the bonding force between the pressure-sensitive adhesive layer and the printed layer is b, the bonding force between the printed layer and a target printed article surface is a, wherein at least one of c and b is smaller than a. According to the invention, a solvent type cover adhesive layer in the traditional decal paper production process is eliminated, and a new process and the new material surface adhesive film are employed for replacement, the emission is reduced and the process is environment-friendly, the preparation process is simplified, the cost is greatly reduced, and also the transportation and use are convenient.

Description

technical field [0001] The invention relates to the field of water transfer printing decals, in particular to an environment-friendly water transfer printing decal and a preparation method thereof. Background technique [0002] The principle of the water transfer printing process is to first print the pattern on the backing paper, and then coat a layer of flexible coating film on the surface of the backing paper with the printed pattern to make a water transfer decal, and then put the water transfer decal on the Soak in water to dissolve the hydrosol of the water transfer decal paper in water, separate the patterned flexible coating film from the backing paper, and transfer the patterned flexible coating film to the surface of the substrate to complete water transfer printing. [0003] In order to realize the complete and convenient transfer of the printing pattern from the printing paper after soaking in water, the existing water transfer printing decal paper is realized by...

Claims

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Application Information

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IPC IPC(8): D21H27/26D21H27/30B44C1/175C08L23/06C08J5/18
CPCB44C1/1754C08J5/18C08J2323/06C08J2423/06D21H27/26D21H27/30
Inventor 郑少华邹卫红林启忠
Owner HORIZON SPECIALTY MATERIAL
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