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Ultraviolet-curable laminating adhesive and preparation method thereof

A technology of ultraviolet light and film-coated adhesive, which is applied in the field of film-coated glue, can solve the problems of film-coated glue that it is difficult to take into account the transparency, gloss and adhesiveness at the same time, the drying speed is slow, and the development and application of high-gloss packaging are restricted, so as to achieve excellent high-gloss Packaging effect, quality improvement, excellent transparency effect

Inactive Publication Date: 2019-09-27
中山布瑞特环保油墨有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing film-coated adhesives are often difficult to balance the transparency, gloss and adhesion at the same time, and the drying speed is slow, so the development and application of high-gloss packaging are restricted to a certain extent.

Method used

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preparation example Construction

[0049] The present invention also provides a method for preparing any one of the above-mentioned UV-curable coating adhesives, comprising the following steps:

[0050] adding the urethane acrylate oligomer to the mixture of the first UV curable monomer and the second UV curable body, and stirring to obtain an intermediate;

[0051] Heating and melting the photoinitiator, then adding the photoinitiator into the intermediate product, stirring, and filtering to obtain the UV-curable coating glue.

[0052] It can be understood that, the ratio of raw materials of the UV-curable coating glue in the above preparation method is the same as that described above.

[0053] At the beginning of preparation, it is necessary to stir and mix the first UV-curable monomer and the second UV-curable monomer to prepare a mixed system of UV-curable monomers, wherein the stirring speed can be controlled to be 300-500r / min, such as 400r / min. Subsequently, the urethane acrylate oligomer is added to...

Embodiment 1

[0060] The UV-curable coating adhesive of the present embodiment includes the following raw materials in parts by mass:

[0061] Polyurethane acrylate oligomer (Guangzhou Songda SD867): 20 parts

[0062] The first UV curing monomer (Xingren ACMO): 20 parts

[0063] The second UV curing monomer (Meiyuan M164): 56 parts

[0064] 2,4,6-Trimethylbenzoyl-diphenylphosphine oxide: 2 parts

[0065] 2-Hydroxy-2-methyl-1-phenyl-1-propanone: 2 parts

[0066] Among them, the urethane acrylate oligomer is a difunctional urethane acrylate oligomer with a viscosity (25°C) of 30000-50000mPa.s, a molecular weight of 3500, a solid content of ≥99%, and a pH of 6-7;

[0067] The glass transition temperature of the first UV curable monomer is 147°C, and the viscosity (25°C) is 5-15mPa.s;

[0068] The glass transition temperature of the second ultraviolet curable monomer is -20°C, and the viscosity (25°C) is 100-150 mPa.s.

[0069] The UV-curable coating glue of the present embodiment is prepa...

Embodiment 2

[0074] The UV-curable coating adhesive of the present embodiment includes the following raw materials in parts by mass:

[0075] Urethane acrylate oligomer: 25 parts

[0076] The first UV curing monomer (Xingren ACMO): 25 parts

[0077] The second UV curing monomer (Meiyuan M164): 46 parts

[0078] 2,4,6-Trimethylbenzoyl-diphenylphosphine oxide: 2 parts

[0079] 2-Hydroxy-2-methyl-1-phenyl-1-propanone: 2 parts

[0080] The types of raw materials and the preparation method of the UV-curable coating adhesive in this embodiment are the same as those in Embodiment 1. The UV-curable coating glue of this embodiment is 2#.

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Abstract

The invention provides an ultraviolet-curable laminating adhesive and a preparation method thereof. The ultraviolet-curable laminating adhesive comprises, by mass, 20-35 parts of an polyurethane acrylate oligomer, 10-30 parts of a first ultraviolet curing monomer, 35-60 parts of a second ultraviolet curing monomer and 2-6 parts of a photoinitiator, wherein the glass transition temperature of the first ultraviolet curing monomer is 70-150 DEG C, and the glass transition temperature of the second ultraviolet curing monomer is -50-50 DEG C. The ultraviolet-curable laminating adhesive has the advantages of good transparency, strong caking property, high drying speed, and realization of high-quality high-light packaging at a low cost.

Description

technical field [0001] The invention relates to a coating adhesive, in particular to an ultraviolet light curing coating adhesive and a preparation method thereof, belonging to the technical field of printing. Background technique [0002] In recent years, with the improvement of living standards, there are more and more packaging types and specifications of products on supermarket shelves. Among them, the high-gloss series has a soft and quiet appearance, so it occupies a place in the packaging field and is the first choice for high-end product packaging. Focus on high-end mineral water labels, daily chemical product labels, gift packaging boxes, etc. in the market. [0003] At present, the high-gloss packaging method is mainly realized through the lamination process and the high-gloss varnish printing process. However, the gloss of the high-gloss varnish printing process is not as good as that of the lamination process, and the high-gloss varnish is not resistant to high-i...

Claims

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Application Information

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IPC IPC(8): C09J4/06C09J4/02
CPCC09J4/06
Inventor 李飞张丰年杨帆
Owner 中山布瑞特环保油墨有限公司
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