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Ultraviolet cured gloss oil for paper

An ultraviolet light and paper technology, applied in papermaking, textile and papermaking, fiber raw material processing, etc., can solve the problems of increased production cost and use cost, increased paper cost, low practical value, etc.

Inactive Publication Date: 2010-06-23
BEIJING COMENS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Coating the paper and then glazing, or directly purchasing coated paper for glazing, will increase the production cost and use cost, which will increase the cost of the paper, and the practical value in reality is not high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment 1 provides a UV-curable paper varnish, which is used in paper to provide a glazing effect. The UV-curable paper varnish is composed of a prepolymer, a reactive diluent, a photoinitiator, and a chain transfer agent and Auxiliaries composed of polymerization inhibitors, the weight percentage of each component is as follows: prepolymer accounts for 20-80%, reactive diluent accounts for 10-70%, photoinitiator accounts for 1-10%, chain transfer agent and The auxiliary agent composed of polymerization inhibitor accounts for 0.5-5%.

[0026] The prepolymer in the UV-curable paper varnish contains two or more curable cross-linking functional groups, the curable functional groups are carbon-carbon double bonds or epoxy groups, and the main chain is acrylate, One or more of acrylates, epoxy acrylates, and urethane acrylates with double bonds in their side chains.

[0027] The reactive diluent in the above-mentioned UV-curable paper varnish is a reactive monomer o...

Embodiment 2

[0032] This embodiment 2 provides a UV-curable paper varnish, which is used in paper glazing, and the varnish specifically includes the following raw materials:

[0033] Formula weight percentage (%)

[0034] Urethane Acrylate 60

[0035] Neopentyl glycol diacrylate 25

[0036] Ethyl acetate 10

[0037] Methyl phthaloylbenzoate 4.5

[0038] Dodecanethiol 0.2

[0039] Hydroquinone 0.3.

[0040] After mixing the above-mentioned raw materials, the UV-curable paper varnish can be obtained.

Embodiment 3

[0042] This embodiment 3 provides a UV-curable paper varnish, which is used in paper glazing, and the varnish specifically includes the following raw materials:

[0043] Formula weight percentage (%)

[0044] Urethane acrylate 55

[0045] Trimethylolpropane Triacrylate 15

[0046] Propoxytrimethylolpropane Triacrylate 15

[0047] Toluene 8

[0048] Hexane 2

[0049] Phenylthiobenzophenone 4.2

[0050] Dodecanethiol 0.2

[0051] Aromatic amines 0.6.

[0052] After mixing the above-mentioned raw materials, the UV-curable paper varnish can be obtained.

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PUM

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Abstract

The invention provides ultraviolet cured gloss oil for paper and belongs to the field of the gloss oil for paper. The gloss oil comprises a prepolymer, an active thinning agent, a photoinitiator, a chain transfer agent and a polymerization inhibitor, the contents of the components by weight percentage are: the prepolymer accounts for 20-80%, the active thinning agent accounts for 10-40%, the photoinitiator accounts for 1-10%, and the chain transfer agent and the polymerization inhibitor account for 0.5-5%. Through the selection of a formulation monomer, the gloss oil improves the film-forming speed of resins and a uniform film layer is formed after the gloss oil is coated and is not absorbed by a fibrous layer immediately. The gloss oil has low rate of shrinkage and cannot cause the deformation retraction of the paper after film formation so that the stiffness of the paper is maintained well.

Description

technical field [0001] The invention belongs to the field of varnishes for paper products, and in particular relates to an ultraviolet light-curable paper varnish suitable for directly glazing paper with high oil absorption without priming. Background technique [0002] UV-curable varnishes for paper glazing are basically coated and cured on primed paper. For non-coated papers with high oil absorption value, ordinary varnishes form uneven films, and the surface varnish is mostly covered by the paper fiber structure. Absorption, can not achieve the effect of glazing. [0003] Coating the paper and then glazing, or directly purchasing coated paper for glazing, will increase the production cost and use cost, which will increase the cost of the paper, and the practical value in reality is not high. [0004] With as little coating cost as possible, it is a technical difficulty in actual production and use to achieve excellent glazing effect on paper with high oil absorption valu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/14
Inventor 李岗沈峰邓煜东
Owner BEIJING COMENS NEW MATERIALS
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