Preparation method of high-strength hollow reflecting layer

A reflective layer and high-strength technology, which is applied in the field of preparation of high-strength hollow reflective layers, can solve the problems of low reflectivity of hollow microspheres, solve the problem of combination, improve thermal stability and high strength, and increase heat retention. Effect

Active Publication Date: 2021-07-27
RICOH THERMAL MEDIA WUXI CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the prior art, the present invention provides a method for preparing a high-strength hollow reflective layer, which solves the problem of low reflectivity of the existing hollow microspheres, and utilizes the transparent reflective refraction effect of the silicon-oxygen structure to form a reflective effect on the gap , effectively improving the heat retention rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A high-strength hollow reflective layer, which uses polypropylene hollow microspheres as hollow spheres and silica as a binder to form a composite hollow heat-insulating layer, wherein the hollow ratio of the polypropylene hollow microspheres is 40%, and the particle The diameter is 40μm;

[0018] The preparation method of the high-strength hollow reflective layer is as follows:

[0019] Step 1, spraying xylene evenly on the surface of polypropylene hollow microspheres to form a surface liquid film, and then standing at a constant temperature for 20 minutes to obtain liquid film microspheres, the spray amount of xylene is 0.2mL / cm 2 , the temperature is 10°C, and the temperature for standing at constant temperature is 30°C;

[0020] Step 2, spray the ethyl silicate ethanol solution evenly on the surface of the liquid film microspheres and let stand at a constant temperature for 30 minutes, then raise the temperature and stand to form prefabricated film microspheres; th...

Embodiment 2

[0024] A high-strength hollow reflective layer, which uses polypropylene hollow microspheres as hollow spheres and silica as a binder to form a composite hollow heat-insulating layer, wherein the hollow ratio of the polypropylene hollow microspheres is 60%, and the particle The diameter is 60μm;

[0025] The preparation method of the high-strength hollow reflective layer is as follows:

[0026] Step 1, spray xylene evenly on the surface of polypropylene hollow microspheres to form a surface liquid film, then leave it at a constant temperature for 30 minutes to obtain liquid film microspheres, the spray volume of xylene is 0.7mL / cm 2 , the temperature is 20°C, and the temperature for standing at constant temperature is 50°C;

[0027] Step 2, spray the ethyl silicate ethanol solution evenly on the surface of the liquid film microspheres and let stand at a constant temperature for 50 minutes, then raise the temperature and stand to form prefabricated film microspheres; the conce...

Embodiment 3

[0031] A high-strength hollow reflective layer, which uses polypropylene hollow microspheres as hollow spheres and silicon dioxide as a binder to form a composite hollow heat-insulating layer, wherein the hollow rate of the polypropylene hollow microspheres is 50%, and the particle The diameter is 50μm;

[0032] The preparation method of the high-strength hollow reflective layer is as follows:

[0033] Step 1, spray xylene evenly on the surface of polypropylene hollow microspheres to form a surface liquid film, then leave it at a constant temperature for 25 minutes to obtain liquid film microspheres, and the spray volume of xylene is 0.5mL / cm 2 , the temperature is 15°C, and the temperature for standing at constant temperature is 40°C;

[0034] Step 2, spray the ethyl silicate ethanol solution evenly on the surface of the liquid film microspheres and let stand at a constant temperature for 40 minutes, then raise the temperature and stand to form prefabricated film microsphere...

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Abstract

The invention belongs to the field of thermo-sensitive paper, and particularly relates to a preparation method of a high-strength hollow reflecting layer. The high-strength hollow reflecting layer takes polypropylene hollow microspheres as hollow spheres and takes silicon dioxide as a bonding body to form a composite hollow heat insulation layer, and the preparation method is provided. The problem that existing hollow microspheres are low in reflectivity is solved, the reflection effect on gaps is formed through the transparent reflection and refraction effect of a silica structure, and the heat retention rate is effectively increased.

Description

technical field [0001] The invention belongs to the field of heat-sensitive paper, and in particular relates to a preparation method of a high-strength hollow reflective layer. Background technique [0002] Thermal paper is widely used in food, logistics, lottery, medical and other industries in China. The printing principle of thermal paper is that the leuco dye is converted into a colored dye through the transfer of heat. In order to make full use of heat, thermal paper will use heat insulating material to ensure the effective use of heat, so as to ensure the fineness of printing. At present, the bottom layer adopts ordinary hollow ball insulation material for heat utilization, but the hollow rate of ordinary hollow ball is only 50%, and the heat retention rate is not high. Contents of the invention [0003] Aiming at the problems in the prior art, the present invention provides a method for preparing a high-strength hollow reflective layer, which solves the problem of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D22/00D21H27/00B29K23/00
CPCB29D22/00D21H27/00B29K2023/12
Inventor 唐喜万
Owner RICOH THERMAL MEDIA WUXI CO
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