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

A water transfer, environment-friendly technology, applied in papermaking, paper, specialty paper, etc., can solve the problems of reducing production efficiency, increasing costs, polluting the environment, etc., and achieving the effects of reducing solvent emissions, improving efficiency, and improving production efficiency

Active Publication Date: 2021-11-23
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 flower paper and preparation method thereof
  • Environment-friendly water transfer printing flower paper and preparation method thereof
  • Environment-friendly water transfer printing flower paper and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

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

[0044] However, this type of acrylic resin coating materials are currently solvent-based coatings, which will generate a large amount of organic solvent waste gas during production and use. In addition, most domestic water transfer printing companies are small-scale companies, basically do not It has the ability to fully and effectively deal with these organic solvent waste gases, which has also caused this industry to become an industry that pollutes the environment seriously. In addition, the method of screen printing is used to form the ...

Embodiment 1

[0078] (1) Preparation of surface adhesive 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 through film blowing, casting, calendering or laminating. The film; and corona treatment is carried out on one side of it to make its surface tension reach more than 36 dynes.

[0079] (2) Prepare the adhesive film with the self-adhesive layer: select the self-adhesive coating with a normal peel strength of 2-6N / 2.5cm, apply it to the corona treatment surface of the above-mentioned adhesive film in a conventional manner, and dry it Drying, trimming, and winding to prepare a surface adhesive film with pre-coated self-adhesive.

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

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

[0082] (5) Then, the self-adhesive surface of the above-mentioned surface adhesive film is composited ...

Embodiment 2

[0084] (1) Preparation of surface adhesive 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 through film blowing, casting, calendering or laminating. film.

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

[0086] (3) The base paper is stamped to form a printing layer to obtain a target printing pattern.

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

[0088] (5) The surface adhesive film is laminated on the self-adhesive layer by hot pressing to obtain the finished decal paper.

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Abstract

The invention provides an environment-friendly water-transfer printing decal paper, which comprises from bottom to top: at least one base paper with water-transfer performance; a printing layer arranged on the base paper; a self-adhesive layer arranged on the printing layer; and The surface adhesive film that is located on the self-adhesive layer; Wherein, the cohesive force between the self-adhesive layer and the surface adhesive film is c, the cohesive force between the self-adhesive layer and the printing layer is b, and the printing The adhesion between the layer and the target printed article surface is a, where at least one of c and b is less than a. By adopting the invention, the solvent-based cover glue layer in the traditional flower paper production process is eliminated, and a new material surface glue film is used to replace it with a new process, which reduces emissions and protects the environment, simplifies the preparation process, greatly reduces costs, and is convenient for transportation and use.

Description

technical field [0001] The invention relates to the field of water transfer printing decal paper, in particular to an environment-friendly water transfer printing decal paper and a preparation method thereof. Background technique [0002] The principle of the water transfer printing process is to print the pattern on the base paper first, and then coat a layer of flexible coating film on the surface of the base paper with the printed pattern to make the water transfer decal paper, and then put the water transfer decal paper on it. 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 the water transfer printing. [0003] In the existing water transfer printing paper, in order to realize the complete and convenient transfer of the printed pattern from the printing paper after being soaked...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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