Ultraviolet curing coating for white board

A technology of curing coatings and ultraviolet light, which is applied in the direction of polyester coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., and can solve the problems of serious ink shrinkage of paint film writing, low hardness and wear resistance of paint films, etc. Achieve the effect of good repeated painting and wiping, good solvent resistance and weather resistance

Inactive Publication Date: 2011-02-23
CHINA LUCKY FILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new type of printing material uses both low-molecule size silicone oil (smaller) and higher moleculum modification for better cleanability on surfaces like paper or other materials used during production. It also improves its durability against damage from rubbing between different objects overtime without losing effectiveness due to it being too soft at certain conditions such as temperatures. Additionally, this composition can be applied evenly across various types of substrates while maintaining excellent properties including water repelling ability and moisture permeable characteristics.

Problems solved by technology

Technological Problem: Current methods involve adding expensive materials like metal foils into conventional blackboards made from tungsten steel plate (STP) due to their weightiness and low manufacturing costs. Additionally, current techniques require long periods before removing any residue caused by previous usage. Therefore, developmental efforts aimed towards developing more durably colored boards resistant against damage during printing operations while maintaining good appearance quality over longer period times.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] WSR-U125 10 copies

[0040] 6145-100 10 copies

[0041] DPGDA 15 copies

[0042] TMPTA 25 parts

[0043] Irgacure 184 10 servings

[0044] P115 10 servings

[0045] EFKA3034 0.5 parts

[0046] EFKA3883 1.5 parts

[0047] ① Mix 15 parts of DPGDA and 25 parts of TMPTA evenly;

[0048] ② Add 0.5 parts of EFKA3034 and 1.5 parts of EFKA3883 to 1 / 4 of ①, and disperse evenly at high speed;

[0049] ③Mix 10 parts of WSR-U125, 10 parts of 6145-100, 10 parts of Irgacure 184 and the remaining ①, heat up to 50°C, stir until completely dissolved, then add 10 parts of P115, and stir evenly;

[0050] ④ Mix ② and ③, stir evenly, cool down, and filter to obtain UV-curable coating.

[0051] The obtained paint is coated on the PVC film by roller coating, and then cured by a medium-pressure mercury lamp of 3000 watts / cm to form a uniform and transparent paint film with low surface energy on the surface of the PVC film; it can also be Apply the obtained paint to the PVC film by spr...

Embodiment 2

[0053] 621A-80 20 copies

[0054] 932-100 30 copies

[0055] DPHA 5 parts

[0056] PO-TMPTA 15 parts

[0057] TPGDA 10 copies

[0058] Irgacure 184 7 servings

[0059] OMBB 3 copies

[0060] 10 parts triethanolamine

[0061] Glide432 1 part

[0062] TEGO2200N 2 copies

[0063] According to the proportioning of the above components, the UV-curable coating was obtained according to the steps in Example 1.

[0064] According to the coating method of Example 1, the obtained coating is coated on substrates such as PVC and PETG to obtain a uniform and transparent paint film with low surface energy.

Embodiment 3

[0066] 623-100 30 copies

[0067] CN2301 15 parts

[0068] HDDA 10 copies

[0069] PETTA 18 servings

[0070] Irgacure 184 2 servings

[0071] OMBB 4.2 copies

[0072] P115 15 copies

[0073] BYK333 0.1 parts

[0074] BYK3530 1 copy

[0075] According to the proportioning of the above components, the UV-curable coating was obtained according to the steps in Example 1.

[0076] According to the coating method of Example 1, the obtained coating is coated on substrates such as PVC and PETG to obtain a uniform and transparent paint film with low surface energy.

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PUM

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Abstract

The invention discloses an ultraviolet curing coating for a white board. The coating comprises the following components in part by weight: 20 to 60 parts of acrylic ester resin prepolymer, 10 to 50 parts of acrylic ester monomer, 3 to 10 parts of photoinitiator, 3 to 15 parts of initiation promoter and 1 to 2 parts of auxiliary agent, wherein the auxiliary agent consists of organic siloxane with small molecular weight and modified organic siloxane with large molecular weight in a weight ratio of 0.1-0.3:1. A paint film formed by the coating has low surface energy, reaches a balance state in erasing-writing and ink-shrinking performance, overcomes the defect of ink shrinking of written characters when the hardness of the paint film is higher, and has excellent repeated scribbling and erasing functions and high weather resistance.

Description

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Claims

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Application Information

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Owner CHINA LUCKY FILM CORP
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