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Projection cloth and preparation method thereof

A technology of projection cloth and cloth base, which is applied in the direction of chemical instruments and methods, coatings, layered products, etc., can solve the problems of high production cost, complex structure, easy bending and shrinkage deformation, etc., and achieve a high degree of mechanical automation, Simple processing method and high production efficiency

Active Publication Date: 2021-06-11
GUANGZHOU MAGNET ELECTRICITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device has complex structure, high manufacturing cost, and difficult installation and removal
[0004] The current glossy whiteboards are all reflective and are rarely used for teaching projection. At the same time, film products are prone to creases when they are retracted and retracted many times, and the projection and writing effects are reduced. In addition, the film has a certain stiffness, which is not as flexible as cloth, so it is easy to There is bending and shrinkage deformation, and after a long time, it is easy to have problems when retracting
[0005] In order to solve the problem of reflection, some technical workers use matte erasing board or embossed whiteboard instead, but the erasing effect drops significantly, and the projection still cannot achieve the effect of cloth
Due to the existence of the longitude and latitude of the cloth, the surface is uneven, forming a natural diffuse reflection. It is precisely because of the uneven surface that it cannot be surface treated like a film, resulting in the inability to realize the erasing function

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Projection cloth and preparation method thereof
  • Projection cloth and preparation method thereof
  • Projection cloth and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] Refer to the structural composition of the projection cloth in this example image 3 .

[0100] The matte erasing layer is a matte UV coating, which is made of the following raw materials in parts by mass: 20 parts of polyurethane acrylate (8 parts of Sartomer CN929, 12 parts of Changxing 6145-100), 10 parts of epoxy acrylate ( Sartomer CN104), 10 parts of polyester acrylate (Changxing 6312-100), 5 parts of hyperbranched acrylate (Changxing 6363), 30 parts of acrylate monomer (including 6 parts of HDDA, 14 parts of TPGDA, 10 parts of TMPTA ), 8 parts of matting powder, 5 parts of wear-resistant agent (aluminum oxide), 5 parts of photoinitiator (including 4 parts of photoinitiator 184, 1 part of photoinitiator 1173), 5.5 parts of solvent (ethyl acetate), dispersant 0.5 parts (polycarboxylate), 1 part of leveling agent (DEGO300). The cloth substrate is made of 150D×150D chemical fiber cloth, which is treated with a primer layer and a surface treatment layer, and is prep...

Embodiment 2

[0108] Refer to the structural composition of the projection cloth in this example image 3 .

[0109] The matte erasing layer is matte UV coating, and it is made of the raw material of following mass parts: 30 parts of polyurethane acrylates (wherein 20 parts of Sartomer CN929, 10 parts of Changxing 6145-100), 5 parts of epoxy acrylates ( Changxing 621A-80), 5 parts of polyester acrylate (Sartomer CN293), 5 parts of hyperbranched acrylate (Changxing 6363), 25 parts of acrylate monomer (including 5 parts of NPGDA, 15 parts of TPGDA, 5 parts of TMPTA ), 8 parts of matting powder, 5 parts of wear-resistant agent (silicon carbide), 6 parts of photoinitiator (4 parts of photoinitiator 184, 1 part of photoinitiator 1173, 1 part of photoinitiator TPO), 9 parts of solvent ( Butyl acetate), 0.5 parts of dispersant (polyacrylate), 1.5 parts of leveling agent (BYK354). The cloth substrate is made of 300D×300D chemical fiber cloth through the primer layer and the surface treatment laye...

Embodiment 3

[0117] Refer to the structural composition of the projection cloth in this example image 3 .

[0118] The matte erasing layer is a matte UV coating, which is made of the following raw materials in parts by mass: 20 parts of polyurethane acrylate (Changxing 6145-100), 10 parts of polyester acrylate (Changxing 6312-100), hyperbranched acrylate 5 parts (Changxing 6363), 40 parts of acrylate monomer (10 parts of HDDA, 5 parts of DTMPTA, 25 parts of TPGDA), 8 parts of matting powder, 5 parts of wear-resistant agent (silicon dioxide), 6 parts of photoinitiator (4 parts of photoinitiator 184, 1 part of photoinitiator 1173, 1 part of photoinitiator TPO), 4 parts of solvent (xylene), 0.5 parts of dispersant (polysiloxane copolymer), 1.5 parts of leveling agent (MODAFLOW9200). The cloth substrate is made of 600D×300D chemical fiber cloth through the primer layer and the surface treatment layer, which is prepared before applying matte UV paint.

[0119] The preparation method of the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses projection cloth and a preparation method thereof. The projection cloth comprises a matte erasing and writing layer, a cloth layer and a ferromagnetic layer which are stacked in sequence; and the cloth layer comprises a cloth base material and a surface treatment layer, and the surface treatment layer is arranged between the cloth base material and the matte erasing and writing layer. The multifunctional projection cloth is good in projection effect, can realize erasing and magnetic adsorption functions, and can be used as a projection teaching or jigsaw puzzle educational teaching appliance.

Description

technical field [0001] The invention relates to the technical field of projection materials, in particular to a projection cloth and a preparation method thereof. Background technique [0002] Ordinary projection screens are mostly made of cloth, and the surface is usually sprayed with white, black, gray, beige paint. The surface has a matte or matte effect, which forms diffuse reflection and is not easy to reflect light, but it cannot be cleared after writing. Therefore, if users need to write when explaining, they can only set up a whiteboard or blackboard, but this writing method is not very good. The realization of the projection function, there are problems such as reflections or insufficient clarity, which may easily confuse the audience. Furthermore, if the user does not focus on the projection screen, writes on another whiteboard or puts away the projection cloth on the glass writing board, and then puts it down, sometimes it is difficult to remember which part the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06N3/12B32B5/02B32B7/12B32B15/18B32B33/00
CPCD06N3/0006D06N3/0063D06N3/12B32B5/02B32B7/12B32B15/18B32B33/00D06N2203/06D06N2205/16D06N2209/0846B32B2255/26B32B2255/02B32B2255/28
Inventor 叶荣根吴国明陈志强汪小明
Owner GUANGZHOU MAGNET ELECTRICITY
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