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Solvent-free leather highlighting UV gloss oil and preparation technology thereof

A solvent-free, leather-based technology, applied in the surface treatment of high-quality leather, solvent-free leather high-gloss UV varnish and preparation technology, can solve the problems of inability to use leather, insufficient flexibility, and reduced flexibility, and achieve high production efficiency and equipment Requires simple, gloss reduction effect

Inactive Publication Date: 2017-07-28
广州从越商贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing UV products have high gloss and good fullness, most of them are too brittle and hard, and not flexible enough to be used on leather
The flexibility and gloss of the coating film required by leather are contradictory. The gloss is average, but the flexibility is good, but it is easy to stick; the gloss is high, the flexibility decreases, and the coating film is dry.
Therefore, the use of UV curing materials to make leather varnishes, and UV curing for finishing has not been reported so far.

Method used

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  • Solvent-free leather highlighting UV gloss oil and preparation technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A solvent-free leather highlighting UV varnish, comprising the following components in parts by weight:

[0046] 70 parts of difunctional aliphatic urethane acrylate;

[0047] 10 parts of modified epoxy acrylate;

[0048] 14 parts of monomer;

[0049] 5 parts of photoinitiator;

[0050] Auxiliary 1 part.

[0051] Wherein said difunctional aliphatic urethane acrylate comprises 15 parts by weight of polyol, 10 parts of diisocyanate, 0.2 part of catalyst organic bismuth, 0.1 part of inhibitor p-oxyphenol and 15 parts of acrylic acid Hydroxyethyl esters are prepared as follows:

[0052] Add the formula amount of polyether polyol N-204 (Tianjin Petrochemical Group Co., Ltd.) into the reaction kettle equipped with stirrer, thermometer, condenser (reflux), and constant pressure dripping equipment, heat up to 110°C, and vacuumize Dehydration 2h;

[0053] Then lower the temperature to 45°C, and while stirring, drop in the formulated amount of isophorone diisocyanate IPDI, ...

Embodiment 2

[0072] A solvent-free leather highlighting UV varnish, comprising the following components in parts by weight:

[0073] 70 parts of difunctional aliphatic urethane acrylate;

[0074] 10 parts of modified epoxy acrylate;

[0075] 14 parts of monomer;

[0076] 5 parts of photoinitiator;

[0077] Auxiliary 1 part.

[0078] Wherein said difunctional aliphatic urethane acrylate comprises 25 parts by weight of polyol, 20 parts of diisocyanate, 0.6 part of catalyst organic bismuth, 0.3 part of polymerization inhibitor paraoxyphenol and 20 parts of acrylic acid Hydroxyethyl esters are prepared as follows:

[0079] Add the formula amount of polyether polyol N-204 (Tianjin Petrochemical Group Co., Ltd.) into the reaction kettle equipped with stirrer, thermometer, condenser (reflux), and constant pressure dripping equipment, heat up to 110°C, and vacuumize Dehydration 2h;

[0080] Then lower the temperature to 45°C, and while stirring, drop in the formulated amount of isophorone di...

Embodiment 3

[0099] A solvent-free leather highlighting UV varnish, comprising the following components in parts by weight:

[0100] 70 parts of difunctional aliphatic urethane acrylate;

[0101] 10 parts of modified epoxy acrylate;

[0102] 14 parts of monomer;

[0103] 5 parts of photoinitiator;

[0104] Auxiliary 1 part.

[0105] Wherein said difunctional aliphatic urethane acrylate comprises 35 parts by weight of polyols, 30 parts of diisocyanate, 1.4 parts of catalyst organic bismuth, 0.7 parts of polymerization inhibitor paraoxyphenol and 25 parts of acrylic acid Hydroxyethyl esters are prepared as follows:

[0106] Add the formula amount of polyether polyol N-204 (Tianjin Petrochemical Group Co., Ltd.) into the reaction kettle equipped with stirrer, thermometer, condenser (reflux), and constant pressure dripping equipment, heat up to 110°C, and vacuumize Dehydration 2h;

[0107] Then lower the temperature to 45°C, and while stirring, drop in the formulated amount of isophorone...

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Abstract

The invention relates to solvent-free leather highlighting UV gloss oil. The UV gloss oil is prepared from the following raw materials in parts by weight: 70-80 parts of bifunctional aliphatic polyurethane acrylate, 5-15 parts of modified epoxy acrylate, 10-15 parts of monofunctional and bifunctional monomers, 1-5 parts of a photoinitiator and 0.5-1.5 parts of an assistant. The solvent-free leather highlighting UV gloss oil has a high curing speed, the drying time is shorter than 1min, the possibility of reduction of the glossiness due to the fact that dust is attached to a wet film is greatly reduced and a film is excellent in glossiness and aesthetic degree.

Description

technical field [0001] The invention relates to the technical field of fine chemicals, in particular to a solvent-free leather highlight UV varnish and a preparation process, which is suitable for surface treatment of leather and shoe materials. Background technique [0002] Whether it is synthetic leather, artificial leather or real leather, in order to obtain different surface gloss and feel, it must be surface-finished, that is, high-gloss finishing or mirror finishing. Surface finishing is an important and fashionable treatment of leather. [0003] At present, its leather varnish is mainly acrylic emulsion or water-based polyurethane dispersion, which has a long drying time, weak adhesion, and gloss fullness that cannot meet the requirements of high-gloss or mirror finish; another widely used The mirror coating agent used is solvent-based moisture-curing polyurethane. The adhesive layer after moisture-curing polyurethane has a polyurethane-polyurea structure. This speci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D163/10C08G18/67C08G18/48C08G59/17
CPCC09D175/14C08G18/672C08G59/1466C08L63/10C08G18/48
Inventor 邓仕高孙启龙徐野邓掌剑
Owner 广州从越商贸有限公司
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