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Composite optical printing paper and its preparation method

A technology of light printing paper and light-based printing paper, applied in the field of light printing, can solve the problems of moisture-proof, waterproof, anti-oxidation and mechanical properties of light printing paper, low color saturation of tungsten-based light printing paper, and preparation of light printing paper. The technology needs to be improved and other issues to achieve the effect of prolonging the fading time, enhancing the color saturation, and enhancing the photochromic reaction

Active Publication Date: 2022-04-29
DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The traditional optical printing paper has poor moisture-proof, waterproof, anti-oxidation and mechanical properties;
[0005] 2. Tungsten-based optical printing paper has low color saturation and image distortion;
[0006] 3. The pattern of tungsten-based photoprinting paper exposed in the air gradually fades under natural conditions, and the color stability is poor
[0007] Therefore, the current optical printing paper preparation technology still needs to be improved.

Method used

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  • Composite optical printing paper and its preparation method
  • Composite optical printing paper and its preparation method
  • Composite optical printing paper and its preparation method

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preparation example Construction

[0039] (1) Preparation of composite optical printing paper

[0040] According to the preparation process of composite light printing paper provided by the present invention such as figure 1 shown.

[0041] In some embodiments, the preparation of the composite optical printing paper includes:

[0042] The first step: preparation of tungsten-containing sol-gel solution

[0043] Dissolve the tungsten-containing compound and high molecular polymer into the mixed solution of solvent and acid, and stir to obtain the tungsten-containing sol-gel liquid;

[0044] Step 2: Spin coating to form a film

[0045] The above tungsten-containing sol-gel solution is spin-coated to form a film, and after the solvent is volatilized, a tungsten-based photoprinting paper is obtained;

[0046] Step 3: PDMS membrane encapsulation

[0047] A PDMS solution is spin-coated on both sides of the tungsten-based photoprinting paper, and heat-treated to obtain a composite photoprinting paper reinforced wi...

Embodiment 1

[0093] First, dissolve 4g of ammonium metatungstate and 2g of polyvinylpyrrolidone into a mixture of 3.5g of deionized water and 0.5g of concentrated sulfuric acid, and magnetically stir until fully dissolved to obtain a precursor sol-gel solution; then use a high-speed homogenizer Spin-coat the precursor sol-gel solution on the surface of the substrate to form a uniform and smooth film, and let it stand at room temperature for 1 hour until part of the solvent volatilizes to obtain tungsten-based optical printing paper for use; finally, spin-coat the two sides of the above-mentioned tungsten-based optical printing paper A layer of PDMS liquid was placed in an oven and kept at 80°C for 2 hours to obtain composite photoprinting paper reinforced with PDMS microstructure wrinkled film.

Embodiment 2

[0095] First, dissolve 4g of ammonium metatungstate and 2g of polyvinylpyrrolidone into a mixture of 3.5g of deionized water and 0.5g of formic acid, and magnetically stir until fully dissolved to obtain a precursor sol-gel solution; then use a high-speed homogenizer to The precursor sol-gel solution was spin-coated on the surface of the substrate to form a uniform and flat film, and left at room temperature for 1 hour to allow part of the solvent to volatilize to obtain tungsten-based optical printing paper for use; finally, spin-coat a A layer of PDMS liquid was placed in an oven and kept at 80°C for 2 hours to obtain composite photoprinting paper reinforced with PDMS microstructure wrinkled film.

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Abstract

The invention relates to the technical field of optical printing, and relates to composite optical printing paper reinforced by polydimethylsiloxane (PDMS) microstructure wrinkled film and a preparation method thereof. In the invention, the composite optical printing paper is obtained by encapsulating the tungsten-based optical printing paper with a PDMS film. The composite photoprinting paper is a kind of photoprinting paper enhanced by PDMS microstructure wrinkle film, which has the advantage of high color saturation of photoprinting.

Description

technical field [0001] The invention relates to the technical field of (ultraviolet) light printing, in particular to a polydimethylsiloxane (PDMS) microstructure wrinkled film-reinforced composite light printing paper and a preparation method thereof. Background technique [0002] Optical printing, as a new type of inkless printing technology, mainly uses the photochromic properties of materials to print text patterns. The optical printing process has great advantages over the traditional printing process. On the one hand, inkless printing simplifies the printing process and reduces the cost of printing; on the other hand, the patterns and characters printed by light printing can be erased by specific conditions such as ozone treatment or heat treatment, so that the printing paper can be reused , It also reduces the pollution of printing paper to the environment and the waste of energy. [0003] However, at present, the optical printing paper also has the following proble...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/00D21H21/16D21H19/84D21H19/14D21H19/20D21H19/24B41M5/42B41M5/44
CPCD21H27/00D21H21/16D21H19/84D21H19/14D21H19/20D21H19/24B41M5/426B41M5/423B41M5/44B41M2205/40
Inventor 胡三元杨远博夏振宇谌庆春彭果戈周政何凤荣
Owner DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
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