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Paint for projection screen and preparation method thereof

A technology for projection screens and coatings, applied in fire-resistant coatings, reflective/signal coatings, polyurea/polyurethane coatings, etc., can solve the problems of indoor darkening and low brightness, and achieve improved brightness coefficient, excellent performance, light reflectivity and The effect of both refractive index

Active Publication Date: 2020-10-09
DONGLAI COATING TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, due to the low brightness of the previous projection effect, it is necessary to darken the room when using it.

Method used

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  • Paint for projection screen and preparation method thereof
  • Paint for projection screen and preparation method thereof
  • Paint for projection screen and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A coating composition for a projection screen, which is composed of a component A resin paint and a component B curing agent in a weight ratio of 100:25;

[0036] Wherein, the A component resin paint comprises the following components and parts by weight:

[0037]

[0038] The curing agent of the B component includes the following components and parts by weight:

[0039]

[0040] A method for preparing a coating composition for a projection screen specifically comprises the following steps:

[0041] (1) Add effect aluminum pigment, effect pearl powder, hollow glass powder diffusing agent, hollow organic powder diffusing agent, titanium dioxide and other pigments and dispersants and hydroxyl acrylic resin into the dispersion tank by weight, and stir evenly , then add relevant solvents, stir at low speed for 20-30min, and then stir at high speed for 25-35min, then import it into a sand mill disperser to grind and disperse to a fineness below 30μm, add thixotropic a...

Embodiment 2

[0045] A coating composition for a projection screen, which is composed of a component A resin paint and a component B curing agent in a weight ratio of 100:25;

[0046] Wherein, the A component resin paint comprises the following components and parts by weight:

[0047]

[0048] The curing agent of the B component includes the following components and parts by weight:

[0049]

[0050]

[0051] A method for preparing a coating composition for a projection screen specifically comprises the following steps:

[0052] (1) Add effect aluminum pigment, effect pearl powder, hollow glass powder diffusing agent, hollow organic powder diffusing agent, titanium dioxide and other pigments and dispersants and hydroxyl acrylic resin into the dispersion tank by weight, and stir evenly , then add relevant solvents, stir at low speed for 20-30min, and then stir at high speed for 25-35min, then import it into a sand mill disperser to grind and disperse to a fineness below 30μm, add t...

Embodiment 3

[0056] A coating composition for a projection screen, which is composed of a component A resin paint and a component B curing agent in a weight ratio of 100:25;

[0057] Wherein, the A component resin paint comprises the following components and parts by weight:

[0058]

[0059]

[0060] The curing agent of the B component includes the following components and parts by weight:

[0061]

[0062] A method for preparing a coating composition for a projection screen specifically comprises the following steps:

[0063] (1) Add effect aluminum pigment, effect pearl powder, hollow glass powder diffusing agent, hollow organic powder diffusing agent, titanium dioxide and other pigments and dispersants and hydroxyl acrylic resin into the dispersion tank by weight, and stir evenly , then add relevant solvents, stir at low speed for 20-30min, and then stir at high speed for 25-35min, then import it into a sand mill disperser to grind and disperse to a fineness below 30μm, add t...

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Abstract

The invention relates to a paint for a projection screen and a preparation method thereof. The paint comprises the following components by mass: a component A composed of 0-20 parts of effect aluminumpigment, 0-20 parts of effect pearl powder, 1-10 parts of a hollow glass powder dispersing agent, 1-10 parts of a hollow organic powder dispersing agent, 0-20 parts of other pigment, 20-70 parts of hydroxyl acrylic resin, 2-20 parts of a thixotropic auxiliary agent, 0.2-5 parts of a dispersing agent and 10-40 parts of a solvent; and a component B composed of 2-20 parts of polydiisocyanate containing an NCO effective group, 0.2-2 parts of an auxiliary agent and 2-20 parts of a solvent; wherein the mass ratio of the component A to the component B is (3-5):1. Compared with the prior art, a primer coating with wide-range light diffusivity and light reflectivity can be prepared, the brightness coefficient of a screen is effectively improved, wider horizontal and vertical view angles are provided, and the projection effect is improved.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a coating for a projection screen and a preparation method thereof. Background technique [0002] As a one-to-many or many-to-many communication method, projectors can effectively help business elites communicate and interact to achieve simple and effective business effects. On the other hand, with the advancement and development of science and technology, in recent years, large-scale home projectors for the purpose of achieving perfect and pleasant viewing effects have gradually become popular, and you can also experience the visual impact of a movie theater at home. [0003] Conventional coatings for projection screens have low light diffusivity, and the resulting screens can only be viewed from a limited range of angles relative to the projection surface. As a general paint improvement method, there are methods such as i) increasing the aluminum pigment content in the paint,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/33C09D5/00C09D7/61
CPCC09D175/04C09D5/004C09D5/002C09D5/18C09D7/61C09D7/70C09D7/69C08K2003/0812C08K2003/265C08K2201/014C08L2201/08C08L89/00C08K3/08C08K3/26C08K7/28C08K7/22C08K13/04
Inventor 朱忠敏罗映兵叶小明
Owner DONGLAI COATING TECH SHANGHAI
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