Ultraviolet curing adhesive for transfer printing film

A UV-curing technology, applied in the production of special varieties of prints, post-processing, printing, etc., can solve the problems of reducing the qualified rate of transfer finished products, easily soiling the substrate, and increasing the processing time. Small volume shrinkage, fast curing speed and energy saving effect

Inactive Publication Date: 2011-09-28
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the transfer method separates the sticking process and the peeling process of the carrier film, it not only increases the processing time and affects the transfer speed, but also requires the transformation of the original transfer equipment
In addition, before the ultraviolet light is irradiated, the uncured adhesive is particularly easy to stain the part of the substrate that does not need to be transferred, which greatly reduces the qualified rate of the transferred product.

Method used

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  • Ultraviolet curing adhesive for transfer printing film
  • Ultraviolet curing adhesive for transfer printing film
  • Ultraviolet curing adhesive for transfer printing film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Adhesive glue adopts the following formula:

[0033] Epoxy resin 601 10%

[0034] Epoxy resin 671 10%

[0035] Epoxy resin 663u 20%

[0036] Polyurethane acrylate 6148 15%

[0037] Reactive diluent TMPTA 7%

[0038] Reactive diluent TPGDA 8%

[0039] Free radical photoinitiator lrgacure-369 0.5%

[0040] Free radical photoinitiator lrgacure-651 1%

[0041] Cationic photoinitiator Omnicat-440 1.5%

[0042] Defoamer 0.3%

[0043] Leveling agent 0.3%

[0044] Butanone 23.4%

[0045] Among them, the epoxy resin is a product of DOW Company of the United States, and the component code is owned by DOW Company of the United States. The polyurethane acrylate and reactive diluent are products of Taiwan Changxing Chemical Co., Ltd., TMPTA is trimethylolpropane triacrylate, and TPGDA is dimerization and trimerization Propylene glycol diacrylate, the free radical photoinitiator is a product of Ciba Specialty Chemicals, the component code is owned by Ciba Specialty Chemi...

Embodiment 2

[0056] 1. Adhesive glue adopts the following formula:

[0057] Epoxy 601 15%

[0058] Epoxy resin 663u 15%

[0059] Acid Modified Bisphenol A Epoxy Acrylate 3216 10%

[0060] Reactive diluent TMPTA 25%

[0061] Reactive diluent TPGDA 15%

[0062] Free radical photoinitiator lrgacure-369 1%

[0063] Free radical photoinitiator lrgacure-651 1%

[0064] Cationic photoinitiator Omnicat-440 1%

[0065] Defoamer 0.3%

[0066] Leveling agent 0.3%

[0067] Acetone 16.4%

[0068] Among them, the epoxy resin is a product of DOW Company of the United States, the component code is owned by DOW Company of the United States, the reactive diluent is a product of Taiwan Changxing Chemical Co., Ltd., TMPTA is trimethylolpropane triacrylate, and TPGDA is tripropylene glycol diacrylate , acid-modified bisphenol A epoxy acrylate 3216 is a product of Shaanxi Xillywood Industrial Co., Ltd., and the free radical photoinitiator is a product of Ciba Specialty Chemical Company. The component c...

Embodiment 3

[0079] 1. Adhesive glue adopts the following formula:

[0080] Epoxy resin 601 10%

[0081] Epoxy resin 671 10%

[0082] Epoxy resin 663u 15%

[0083] Acid modified bisphenol A epoxy acrylate 3216 30%

[0084] Reactive diluent TMPTA 5%

[0085] Reactive diluent TPGDA 5%

[0086] Free radical photoinitiator lrgacure-369 1.5%

[0087] Free radical photoinitiator lrgacure-651 1%

[0088] Cationic photoinitiator Omnicat-440 1%

[0089] Defoamer 0.2%

[0090] Leveling agent 0.5%

[0091] Butanone 20.8%

[0092] Among them, the epoxy resin is a product of DOW Company of the United States, the component code is owned by DOW Company of the United States, the reactive diluent is a product of Taiwan Changxing Chemical Co., Ltd., TMPTA is trimethylolpropane triacrylate, and TPGDA is tripropylene glycol diacrylate , acid-modified bisphenol A epoxy acrylate 3216 is Shaanxi Xillywood Industrial Co., Ltd., and the free radical photoinitiator is a product of Ciba Specialty Chemical ...

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Abstract

The invention relates to an ultraviolet (UV) curing adhesive for a transfer printing film, and an application thereof. A radical UV curing system and a cationic UV-curing system are combined to form a double UV curing system of the UV curing adhesive. According to the present invention, curing rate of the radical is fast, shrinkage of curing volume of the cationic is small, and adhesion of the cationic to a base material is excellent. A technical scheme of the present invention comprises: uniform coating the adhesive on a film printed patterns to obtain a transfer printing film; then carrying out a quick pasting on surface of a substrate through a existing transfer machine; and finally carrying out a UV curing process to obtain a product, wherein a decorative pattern layer of the product is firmly combined with the surface of the substrate. Compared to heat curing adhesive and single UV curing adhesive, the UV curing adhesive provided by the present invention has advantages of energy saving, low VOC discharging and quick curing rate.

Description

technical field [0001] The invention relates to an ultraviolet light-curable adhesive for transfer printing film and its application method. Background technique [0002] The current thermal transfer printing film roughly includes a carrier substrate film, a graphic decoration layer and an adhesive layer. The decorative layer is separated from the carrier substrate film and transferred to the surface of the substrate. Finally, the adhesive is cured by heating the substrate, so that the graphic decoration layer and the substrate are firmly combined. Among them, the adhesive layer is the most important part of thermal transfer printing. Most of the current adhesive layers use hot melt adhesive. This kind of hot melt adhesive has a relatively high softening point and is in a solid state at room temperature. Glue has good adhesion. In addition, this kind of hot melt adhesive is not conducive to environmental protection, because the hot melt adhesive must first be dissolved in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/10C09J4/02B41M3/12B41M7/00C09J4/06
Inventor 黎厚斌陈松洲邹洋师素云
Owner WUHAN UNIV
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