Novel membrane transfer-printing process

A film and process technology, applied in the field of new film transfer process, can solve problems such as easy warping and deformation of products, achieve consistent shrinkage, reduce sheet pre-forming processes, and high efficiency

Inactive Publication Date: 2017-02-08
WUXI KEHONG LABEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defect that the existing in-mold injection molding process products are easy to warp and deform, and to provide a new diaphragm transfer process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A novel membrane transfer printing process, comprising the following steps:

[0019] 1), PET pretreatment, coating printing release layer;

[0020] The method for PET pretreatment comprises the following steps:

[0021] 1) Soak the surface of PET substrate with wetting solution for 4 minutes, and wash with purified water;

[0022] 2) Soak in sediment solution for 4 minutes, wash with purified water;

[0023] 3) Soak in the conductive film working solution for 6 minutes to deposit the conductive film, control pH3, and wash with purified water.

[0024] 2), printing pattern and varnish adhesive; the varnish adhesive includes the following raw materials in parts by weight: 3 parts of antistatic agent, 40 parts of polyurethane acrylate, 30 parts of acrylate monomer, and 5 parts of unsaturated polyester , 1 part of photoinitiator, 5 parts of crosslinking agent, 2 parts of coupling agent.

[0025] 3) Injection molding The injection molding method is roll material.

Embodiment 2

[0027] A novel membrane transfer printing process, comprising the following steps:

[0028] 1), PET pretreatment, coating printing release layer;

[0029] The method for PET pretreatment comprises the following steps:

[0030] 1) Soak the surface of PET substrate with wetting solution for 6 minutes, and wash with purified water;

[0031] 2) Soak in sediment solution for 5 minutes, wash with purified water;

[0032] 3) Soak in the conductive film working solution for 8 minutes to deposit the conductive film, control the pH to 4, and wash with purified water.

[0033] 2), printing pattern and varnish adhesive; varnish adhesive includes the following raw materials in parts by weight: 3 parts of antistatic agent, 40 parts of polyurethane acrylate, 50 parts of acrylate monomer, and 8 parts of unsaturated polyester , 1 part of photoinitiator, 5 parts of crosslinking agent, 5 parts of coupling agent.

[0034] 3) Injection molding The injection molding method is sheet material.

Embodiment 3

[0036] A novel membrane transfer printing process, comprising the following steps:

[0037] 1), PET pretreatment, coating printing release layer;

[0038] The method for PET pretreatment comprises the following steps:

[0039] 1) Soak the surface of the PET substrate with a wetting solution for 5 minutes, and wash with purified water;

[0040] 2) Soak in sediment solution for 4.5 minutes, wash with purified water;

[0041] 3) Soak in the conductive film working solution for 7 minutes to deposit the conductive film, control the pH to 3.5, and wash with purified water.

[0042] 2), printing pattern and varnish adhesive; the varnish adhesive includes the following raw materials in parts by weight: 3 parts of antistatic agent, 40 parts of polyurethane acrylate, 40 parts of acrylate monomer, and 7 parts of unsaturated polyester , 1 part of photoinitiator, 5 parts of crosslinking agent, 3 parts of coupling agent.

[0043] 3) Injection molding The injection molding method is shee...

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PUM

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Abstract

The invention discloses a novel membrane transfer-printing process. The novel membrane transfer-printing process comprises the following steps: (1) pre-treating PET (Polyester) and coating a printing release layer; (2) printing patterns and a gloss oil adhesive; (3) performing injection molding. According to the novel membrane transfer-printing process disclosed by the invention, the PET is separated from an ink layer, and the ink layer is retained on an injection-molded part, so a sheet performing step is reduced, and a required good-looking effect is realized; the PET is totally separated from the ink layer, the product is consistent in contraction, free of deformation, high in efficiency and capable of being printed and injection-molded by adopting a reel-to-reel way.

Description

technical field [0001] The invention relates to a printing process, in particular to a novel membrane transfer printing process. Background technique [0002] In-mold injection molding products are commonly used now, because the surface PET and the injection molding base material shrink inconsistently, resulting in a certain degree of warping deformation of IMD products, which is one of the common defects in the injection molding of thin-shell plastic parts. The existence of warping deformation problems will cause It affects the shape accuracy and surface quality of injection molded parts. When the warpage deformation exceeds the allowable error, it becomes a forming defect, which in turn affects product assembly. For assemblies with high flatness requirements, in-mold injection molding is difficult to meet assembly requirements. Contents of the invention [0003] The technical problem to be solved by the invention is to overcome the defect that the existing in-mold inject...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/025C09J175/14C09J167/06
CPCB41M5/025B41M2205/42C09J175/14C08L67/06
Inventor 陈建平刘启帅钱小玲孙涛
Owner WUXI KEHONG LABEL
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