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Luminescent paper, its manufacturing method and method for drawing luminescent color patterns

A technology of paper and pulp, applied in the direction of adding luminescent/fluorescent substances, luminescent materials, chemical instruments and methods, etc., can solve the problems that the luminescent area cannot be selectively controlled, and the luminescent fiber cannot change the color of visible light, etc.

Active Publication Date: 2017-08-04
HUBEI ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the luminescent paper is used as a drawing paper, on the one hand, the luminescent fibers cannot change the color of the visible light emitted according to the painting pattern;

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0167] Preparation Example 1: Preparation of Peroxide Microcapsules

[0168] (1) Emulsion preparation

[0169] Mix 5% (weight) hydrogen peroxide (98% hydrogen peroxide aqueous solution) with 50% (weight) absolute ethanol and 45% (weight) tert-butanol, add lithium 5-chlorosalicylate (concentration is 0.2g / L) to prepare a hydrogen peroxide solution.

[0170] Add nonionic surfactant Dow Corning 5200 (alkyl polyethylene glycol-18 / polypropylene glycol-18 / methicone terpolymer) to low-viscosity simethicone oil (201 silicone oil from Shijiazhuang Zhonglan Technology Co., Ltd.) Copolymer), prepare 1% surfactant in simethicone oil solution.

[0171] The hydrogen peroxide solution was added to the simethicone solution, and the mixture was homogenized with a high shear mixer (Ultra Turrax T25Basic, IKA, Werke) to obtain an emulsion.

[0172] (3) Capsule preparation

[0173] Weigh 36g of tetraethylorthosilicate (TEOS) and 1g of dimethyldiethoxysilane (DMDEOS) and place them in a clean...

preparation example 2

[0174] Preparation Example 2: Preparation of Oxalate Microcapsules

[0175] (2) Emulsion preparation

[0176] Bis(2,4,5-trichloro-6-carbonylpentyloxyphenyl) oxalate (CPPO) was dissolved in dimethyl phthalate to obtain a CPPO solution with a concentration of 20%.

[0177] A 1.0% aqueous surfactant solution (120 g) was prepared by dissolving cetyltrimethylammonium chloride (CTAC) surfactant in distilled water. The oily phase (CPPO solution) was subsequently injected into the aqueous phase and the mixture was homogenized with a high shear mixer (Ultra Turrax T25Basic, IKA, Werke). Add four drops of anti-foaming agent to suppress the generation of foam.

[0178] (3) Capsule preparation

[0179] Weigh 35.91 g of precursor tetraethylorthosilicate (TEOS) and 2 g of dimethyldiethoxysilane (DMDEOS) and place them in a clean and dry dropping funnel. The TEOS was then added dropwise to the emulsion with constant mixing. Once the TEOS addition is complete reduce the mixing speed. Th...

preparation example 3

[0180] Preparation Example 3: Preparation of peroxide microcapsules

[0181] In a high shear mixer (Ultra Turrax T25Basic, IKA, Werke), a 20% by weight concentration of hydrogen peroxide solution containing lithium 5-chlorosalicylate (concentration 0.2 g / L) was added to the 10% poly(hexanediol adipate) was emulsified in a mixed solution of pentane and hexane 1:1 (by weight) for 5 minutes while keeping the temperature below 25°C. This initial emulsion was then dispersed in 500 mL of an aqueous solution containing 1% polyvinyl alcohol (Rhodoviol 4-125, Rhodia Chimie) for 20 minutes at room temperature.

[0182] Using a rotary evaporator, the above suspension was evaporated under reduced pressure to remove the solvent. Aqueous suspension of microcapsules with an average particle size of 200 microns was obtained.

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Abstract

The invention relates to luminous paper, a making method thereof and a method for drawing a luminous color pattern. The luminous paper comprises (A) a paper body and (B) microcapsules distributed in the paper body, wherein each microcapsule comprises (b1) a core formed by liquid composition and (b2) a shell coating the core; the paper body contains an oxalate-containing component and the liquid composition is an activator component containing a solvent and peroxide, or the paper body contains a peroxide-containing activator component and the liquid composition is an oxalate component containing a solvent and oxalate. A luminous area of the luminous paper can be selectively controlled.

Description

technical field [0001] The invention relates to the field of paper, in particular to a luminous paper, a preparation method thereof and a method for drawing luminescent color patterns. Background technique [0002] In the prior art, luminescent paper is added with luminescent fibers during the paper production process, and the luminescent fibers can emit visible light with a longer wavelength than the irradiated light when irradiated by light or radiation. [0003] Luminescent paper needs light source or radioactive source to make luminescent fiber produce visible light. However, if the luminescent paper is used as drawing paper, on the one hand, the luminescent fiber cannot change the color of the visible light emitted by it according to the painting pattern; [0004] In view of this, the present invention is proposed. Contents of the invention [0005] The first object of the present invention is to provide a kind of luminous paper, comprising: [0006] (A) the body o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H19/66D21H21/30D21H17/14C09K11/02C09D11/50
CPCC09D11/50C09K11/02D21H17/14D21H19/66D21H21/30
Inventor 周玲张修乾
Owner HUBEI ENG UNIV
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