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Hand-feeling optically-variable UV-curable coating as well as preparation method and application thereof

A technology for curing coatings and light-curing resins. It is used in polyester coatings, rosin coatings, polyurea/polyurethane coatings, etc. It can solve the problems of graininess and uneven surface of the coating film, achieve smooth surface, protect the environment, and reduce VOC. The effect of emissions

Active Publication Date: 2020-11-17
HUNAN SOKAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the purpose of this application is to provide a hand-sensitive optically variable UV curing coating and its preparation method and application, so as to solve the technical problems of the coating film having a grainy feel and rough surface after the existing coating is cured and formed into a film.

Method used

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  • Hand-feeling optically-variable UV-curable coating as well as preparation method and application thereof

Examples

Experimental program
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preparation example Construction

[0089] On the other hand, the embodiment of the present application provides a method for preparing the hand-sensitive optically variable UV curable coating, comprising the following steps:

[0090] S01, prepare raw materials according to the components and contents contained in the hand-sensitive light-changing UV curable coating described in the above embodiments;

[0091] S02, mixing the amorphous polyester resin, the inorganic black pigment and the first organic co-solvent to configure the PU component;

[0092] S03, mix the second organic co-solvent and photoinitiator until the photoinitiator is dissolved, then add self-extinction photocurable resin, acrylic modified rosin resin, UV monofunctional monomer, UV multifunctional monomer, inorganic light-changing powder Mix with additives to configure UV components;

[0093] S04, respectively packing the PU component and the UV component to obtain a hand-sensitive light-changing UV curable coating.

[0094] Specifically, in ...

Embodiment 1

[0105] In above-mentioned embodiment 1, embodiment 2, comparative example:

[0106] The preparation method of described PU component:

[0107] After mixing butanone and cyclohexanone evenly, heat at 80°C for 20 minutes, then add amorphous polyester resin, and disperse for 10 minutes at a speed of 1500-2000 r / min.

[0108] The preparation method of the UV component:

[0109] The rotation speed of the above UV formula is 500-1000 rpm. After mixing the butanediisobutyl ketone and propylene glycol methyl ether evenly, add TPO to completely dissolve the TPO, and add the rest of the UV components. Disperse at rotational speed for 10 minutes.

[0110] Filter the PU component and UV component prepared in the above-mentioned Example 1, Example 2, and Comparative Example with a 300-mesh screen, spray the PU component onto the surface of the substrate, and bake it at 80°C for 30 minutes to control the film thickness. At 10~12μm; then spray UV components, bake at 65°C for 10min, and th...

Embodiment 2

[0124] Example 2 Compared with Example 1, Example 2 added melamine to the PU component, and the moisturizing cream resistance performance of Example 1 and Example 2 was 0 grade, and the moisturizing cream resistance performance was excellent.

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Abstract

The invention discloses a hand feeling optically variable UV curing coating. The coating comprises a PU component and a UV component, wherein the PU component comprises the following components in parts by weight: 20-40 parts of amorphous polyester resin, 5-20 parts of an inorganic black pigment and 35-80 parts of a first organic cosolvent; wherein the UV component comprises the following components in parts by weight: 20-40 parts of self-extinction light-cured resin, 15-35 parts of acrylic acid modified rosin resin, 5-15 parts of a UV monofunctional monomer, 5-20 parts of a UV multifunctionalmonomer, 0.5-10 parts of a photoinitiator, 3-15 parts of inorganic photochromic powder, 0.5-10 parts of a cosolvent and 20-40 parts of a second organic cosolvent. The surface of a coating film is smooth and free of granular sensation.

Description

technical field [0001] The application belongs to the technical field of coatings, and in particular relates to a hand-sensitive optically variable UV curing coating and a preparation method and application thereof. Background technique [0002] As mobile phones, notebooks and other 3C electronic products are pursuing more and more hand feel and special color changing effects, it is required that 3C electronic products not only have essential application functions, but also need to be endowed with special functions such as optical change effects. Add inorganic light-changing powder and so on. After adding inorganic optical variable powder, when the coating is sprayed onto the surface of the substrate, the coating film usually has a grainy feel and the surface is not smooth, which affects the user experience. Contents of the invention [0003] In view of this, the purpose of this application is to provide a hand-sensitive optically variable UV curable coating and its prepa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D7/61C09D7/63C09D175/14C09D193/04B05D7/00B05D7/24B05D5/06
CPCB05D5/06B05D7/24B05D7/544B05D2503/00C08K2201/011C09D5/002C09D167/00C09D175/14C09D7/61C09D7/63C08K3/04C08K5/34922C08L93/04C08K3/36
Inventor 胡军凌云剑王卫国缪培凯符饶生杨波伍松吕国强
Owner HUNAN SOKAN NEW MATERIAL
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