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UV light-cured transfer adhesive composition

A technology of transfer glue and composition, applied in the direction of coating, epoxy resin coating, polyester coating, etc., can solve the problems of solvent resistance, poor wear resistance, heat resistance, plastic deformation, etc., to improve production efficiency , reduced solvent emissions, and good aging resistance

Inactive Publication Date: 2014-02-05
SHANGHAI CHENGYING NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of thinner and thinner electronic products such as mobile phones, notebooks, and home appliances, plastic products are used for housings, buttons and other accessories used in electronic products, but plastic products have disadvantages such as solvent resistance and poor wear resistance.
To solve the above shortcomings of plastic products, a layer of protective coating or ink can be used on the surface. Traditional thermosetting coatings or ink samples need to be baked during the process. Most plastic products are not heat-resistant, and plastic deformation will be caused during the baking process. and other defects

Method used

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  • UV light-cured transfer adhesive composition
  • UV light-cured transfer adhesive composition
  • UV light-cured transfer adhesive composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7

[0032] Embodiments 1 to 7 respectively provide a UV curing transfer adhesive composition, and the raw material components and parts by weight corresponding to each composition are shown in Table 1;

[0033] The raw material components corresponding to each example were mixed according to their parts by weight, dispersed at a medium speed for 2 hours, and filtered to obtain a corresponding UV curable transfer adhesive composition.

[0034] Table 1

[0035]

[0036]

Embodiment 8

[0037] Embodiment 8, application

[0038] The application of the UV photocurable transfer adhesive composition of the above-mentioned embodiments 1 to 7 includes the following specific steps:

[0039] 1. Coating process

[0040] The UV light-curable transfer adhesive composition is uniformly coated on the substrate (PC , PMMA, PET or TPU, etc.), the specific coating methods are dispensing method, silk screen method, roller coating method, scraping method, etc., by adjusting the process parameters of the coating method, to ensure that the UV photocurable transfer adhesive composition is uniform Coated on the substrate (PC, PMMA, PET or TPU, etc.);

[0041] 2. Molding process

[0042] Control the temperature, pressure, speed and other process parameters during molding, adjust the energy of UV curing light source, and ensure the speed and effect of UV molding process;

[0043] 3. Demolding process

[0044] The production process of the roller coating method is in-line, and...

Embodiment 9

[0048] Embodiment 9, performance detection

[0049] For the present invention and the coating of prior art are compared, coat with following method, measure the smoothness of coating, adhesive force, aluminizing fastness, sample appearance, temperature resistance.

[0050] 1. Adhesion

[0051] The paint is coated on the pretreated PET film by scraping method, and the pattern of the embossed plate is pressed on the coating when curing. The adhesive tape method was used to test the adhesion of the samples.

[0052] Evaluation method: no shedding at all is excellent, a little shedding is good, and a lot of shedding is poor.

[0053] 2. Boiling resistance

[0054] Put the sample sheet in boiling water at 100°C and cook for 10 minutes.

[0055] Evaluation method: No cracking at the edge, no whitish coating passed.

[0056] 3. Hardness

[0057]Make a sample with a film thickness of 20μm±2μm, place the sample on a flat and horizontal table, and use a MITSUBISHI UNI hardness p...

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Abstract

The invention discloses a UV light-cured transfer adhesive composition. Being a 100% solid content UV coating, the coating comprises the following components by weight part: 40-70 of light-cured resin, 25-55 of a photopolymerizable monomer, 2-6 of a photoinitiator, and 1-5 of an assistant. In the invention, a UV light-cured transfer adhesive composition coating pressed by a template with specific lines is adopted, and at the same time of mold pressing, the specific lines of the template are transferred onto the UV light-cured transfer adhesive composition coating by UV light curing. Compared with the prior art, the composition provided by the invention employs a 100% solid content UV formula, which involves fewer solvents or no solvent, less solvent evaporation occurs during use, and air pollution is reduced. At the same time, the temperature is low during UV curing, and the influence of thermal deformation on a substrate decreases.

Description

technical field [0001] The invention relates to the field of UV photocurable coatings, in particular to a UV photocurable transfer adhesive composition. Background technique [0002] With the development of thinner and lighter electronic products such as mobile phones, notebooks, and home appliances, plastic products are used for housings, buttons and other accessories used in electronic products, but plastic products have disadvantages such as poor solvent resistance and poor wear resistance. To solve the above shortcomings of plastic products, a layer of protective coating or ink can be used on the surface. Traditional thermosetting coatings or ink samples need to be baked during the process. Most plastic products are not heat-resistant, and plastic deformation will be caused during the baking process. and other defects. The use of UV light-curing coatings can effectively avoid the problem of baking deformation of plastic products, and the formula of UV light-curing coati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D175/14C09D167/06C09D4/02C09D4/06C09D5/28C09D7/12
Inventor 虞明东牛辉楠
Owner SHANGHAI CHENGYING NEW MATERIALS