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High wear-resistant UV release agent coating applied to slipper transfer printing and preparation method thereof

A high wear-resistant and release agent technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of slow curing and achieve high curing degree, fast light curing speed and good solubility

Active Publication Date: 2020-08-07
SHANGHAI CHENGYING NEW MATERIALS +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first aspect of the present invention introduces a compound initiator system of free radicals and hydrogen abstraction, and uses co-initiators together to solve the problems of oxygen inhibition and slow curing caused by the single initiator, and at the same time, the photocuring speed is fast, The solubility is good, and the absorption wavelength is as high as 390nm; the second aspect is to add a certain proportion of silane coupling agent to the UV light-curing release agent to ensure the printing function on the UV release agent; the third aspect is to use difunctional polyurethane acrylic resin And alkoxylated acrylate diluent, which can further improve the flexibility of UV release agent while ensuring solubility

Method used

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  • High wear-resistant UV release agent coating applied to slipper transfer printing and preparation method thereof
  • High wear-resistant UV release agent coating applied to slipper transfer printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment provides a kind of high wear-resistant UV release agent coating applied to slipper transfer printing and its preparation method. The components and weights of the high wear-resistant UV release agent coating applied to slipper transfer printing are shown in the table 1.

[0029] The preparation method is specifically:

[0030] (1) Add urethane acrylate and alkoxylated acrylate into the reactive diluent, stir evenly until completely dissolved;

[0031] (2) Add initiator body, co-initiator and silane coupling agent to the mixture prepared in step A1, and stir evenly at high speed;

[0032] (3) cooling, measuring viscosity and solid content, filtering and packaging to obtain UV release agent coating.

[0033] (4) Apply the coating on the OPP / CPP film, the coating amount is 1.5g / m 2 , at UV energy 200mj / cm 2 Under the condition of aerobic curing for 1-3s, after curing, use an infrared tester to confirm that the curing effect is very good (curing degree r...

Embodiment 2

[0037] This embodiment provides a kind of high wear-resistant UV release agent coating applied to slipper transfer printing and its preparation method. The components and weights of the high wear-resistant UV release agent coating applied to slipper transfer printing are shown in the table 2.

[0038] The preparation method is the same as in Example 1. The paint is coated on the OPP / CPP film, the coating amount is 1.5g / m 2 , at UV energy 200mj / cm 2 Under the condition of aerobic curing for 1-3s, after curing, use an infrared tester to confirm that the curing effect is very good (curing degree reaches 93%), the flexibility test uses TMI to test the release force of 0.047, the pencil hardness reaches 2H, and the gravure ink is printed yellow , red, and orange have very good fastness, and they are transferred to slippers to test their flexibility (almost no cracks when bent 360°) and wear resistance (almost no scratches after artificial wear for more than 40 days).

[0039] Ta...

Embodiment 3

[0042] This embodiment provides a kind of high wear-resistant UV release agent coating applied to slipper transfer printing and its preparation method. The components and weights of the high wear-resistant UV release agent coating applied to slipper transfer printing are shown in the table 3.

[0043] The preparation method is the same as in Example 1. The paint is coated on the OPP / CPP film, the coating amount is 1.5g / m 2 , at UV energy 200mj / cm 2Under the condition of aerobic curing for 1-3s, after curing, use an infrared tester to confirm that the curing effect is very good (curing degree reaches 88%), the flexibility test uses TMI to test the release force of 0.036, the pencil hardness reaches 2H, and the gravure ink is printed yellow , red, and orange have very good fastness, and they are transferred to slippers to test their flexibility (almost no cracks when bent 360°) and wear resistance (almost no scratches after artificial wear for more than 40 days).

[0044] tab...

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Abstract

The invention provides a highly wear-resistant UV release agent coating applied to slipper transfer and a preparation method thereof. The coating comprises the following components in percentage by weight: 2-5% of an initiator body, 5-12% of a promoter, 20-40% of a reactive diluent, 20-40% of urethane acrylate, 10-30%of alkoxylated acrylate and 1-5% of a silane coupling agent. The UV release agentcoating prepared in the invention is high in curing degree and excellent in solubility, the absorption wavelength reaches 390nm, any organic solvent is not released in the curing process and in the prepred product, the needed amount of the cured ultraviolet energy is 50mj / cm<2> only, the curing time only needs 1-3 seconds, and the prepared coating is a high-efficiency, energy-saving and environmental-friendly photocuring release coating and can be widely applied to slipper transfer.

Description

technical field [0001] The invention relates to the technical field of back coating coatings, in particular to a high wear-resistant UV release agent coating applied to slipper transfer printing and a preparation method thereof. Background technique [0002] Different slipper materials generally require certain patterns to be printed on the surface. The possibility of printing directly on the slipper surface is very small. At present, it must be realized through the following process: OPP / CPP and other substrates are coated with a printable release agent. Various inks are printed on the mold, and then a layer of transfer glue is applied on the printing ink. After slitting, the printed pattern is transferred to the slippers under a certain temperature and pressure. Usually the release agent will stay on the slippers. [0003] At present, the release agent used is usually acrylic resin material. This type of material can ensure printing performance and release function, but ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D5/20C09D7/63
CPCC08K5/544C09D5/20C09D175/14
Inventor 董海普丁志红谢允斌
Owner SHANGHAI CHENGYING NEW MATERIALS
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