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Thermosensitive paper and preparation method thereof

A heat-sensitive paper and base paper layer technology, applied in the field of papermaking, can solve the problems of print head damage, printing quality impact, easy fading, etc., and achieve the effect of reducing consumption and reducing adhesion

Inactive Publication Date: 2019-12-10
GOLD HUASHENG PAPER SUZHOU IND PARK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the inventors of the present application have found in the long-term research and development process that conventional thermal papers are usually black-colored thermal papers. The demand is also gradually increasing; in addition, in the molten state, some of the chemical substances in the chromophoric layer of the thermal paper will stick to the print head. If things go on like this, it will not only affect the printing quality, but also cause damage to the print head , reducing the service life of the printer; in addition, when the thermal paper is used for various bills and labels, it should have a certain light resistance to prevent fading under long-term exposure to light. However, the current thermal paper is more or less Will be easy to fade

Method used

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  • Thermosensitive paper and preparation method thereof
  • Thermosensitive paper and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0068] 80 parts by mass of calcined kaolin with an oil absorption value of 90g / 100g, 20 parts by mass of hollow plastic pigments, 10 parts by mass of polyvinyl alcohol, and 10 parts by mass of styrene-acrylic latex were mixed and dispersed to form a precoating paint with a solid content of 30%.

[0069]36 parts by mass of 2,4-diphenylsulfonylphenol, 4 parts by mass of polyvinyl alcohol, and 5 parts by mass of magnesium silicate were mixed and dispersed into a dispersion with a concentration of 40%, and ground in a wet grinder until the particle size was 1.0 μm, to obtain the color developer dispersion;

[0070] Mix and disperse 36 parts by mass of 1,2-diphenoxyethane and 4 parts by mass of polyvinyl alcohol into a dispersion with a concentration of 40%, and grind it in a wet mill to a particle size of 1.0 μm to obtain a sensitized agent dispersion;

[0071] 36 parts by mass of crystal violet lactone and 4 parts by mass of polyvinyl alcohol were mixed and dispersed to form a d...

Embodiment 2

[0076] 80 parts by mass of calcined kaolin with an oil absorption value of 70g / 100g, 20 parts by mass of hollow plastic pigments, 10 parts by mass of polyvinyl alcohol, and 10 parts by mass of styrene-acrylic latex were mixed and dispersed to form a precoating paint with a solid content of 30%.

[0077] 36 parts by mass of 2,4-diphenylsulfonylphenol, 4 parts by mass of polyvinyl alcohol, and 5 parts by mass of magnesium silicate were mixed and dispersed into a dispersion with a concentration of 40%, and ground in a wet grinder until the particle size was 1.0 μm, to obtain the color developer dispersion;

[0078] Mix and disperse 36 parts by mass of 1,2-diphenoxyethane and 4 parts by mass of polyvinyl alcohol into a dispersion with a concentration of 40%, and grind it in a wet mill to a particle size of 1.0 μm to obtain a sensitized agent dispersion;

[0079] 36 parts by mass of crystal violet lactone and 4 parts by mass of polyvinyl alcohol were mixed and dispersed to form a ...

Embodiment 3

[0084] 80 parts by mass of calcined kaolin with an oil absorption value of 80g / 100g, 20 parts by mass of hollow plastic pigments, 10 parts by mass of polyvinyl alcohol, and 10 parts by mass of styrene-acrylic latex were mixed and dispersed to form a precoating paint with a solid content of 30%.

[0085] 36 parts by mass of 2,4-diphenylsulfonylphenol, 4 parts by mass of polyvinyl alcohol, and 5 parts by mass of magnesium silicate were mixed and dispersed into a dispersion with a concentration of 40%, and ground in a wet grinder until the particle size was 1.0 μm, to obtain the color developer dispersion;

[0086] Mix and disperse 36 parts by mass of 1,2-diphenoxyethane and 4 parts by mass of polyvinyl alcohol into a dispersion with a concentration of 40%, and grind it in a wet mill to a particle size of 1.0 μm to obtain a sensitized agent dispersion;

[0087] 36 parts by mass of crystal violet lactone and 4 parts by mass of polyvinyl alcohol were mixed and dispersed to form a ...

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Abstract

The invention discloses thermosensitive paper and a preparation method thereof. The thermosensitive paper comprises a base paper layer, a precoating layer and a chromogenic layer, wherein the precoating layer and the chromogenic layer are successively formed on the base paper layer; the chromogenic layer is formed by coating with a chromogenic coating, and a chromogenic coating comprises a dye, wherein the dye is at least one of crystal violet lactone, 10-benzoyl-3,7-bis(dimethylamino)phenothiazine, and 7-[4-(diethylamino)-2-(hexyloxy)phenyl]-7-(1-ethyl-2-methyl-1H-indole-3-yl)furano[3,4-B]pyridine-5(7H)-one. Through the method, the amount of a dye and a color developer in the thermosensitive paper can be substantially reduced, and thus adhesion of the dye and the color developer, on a printing head, in the thermosensitive paper in the printing process is reduced, and the printing head is protected to a certain extent.

Description

technical field [0001] The application relates to the technical field of papermaking, in particular to a heat-sensitive paper and a preparation method thereof. Background technique [0002] Thermal paper is a printing paper specially used for thermal printers and thermal fax machines. At present, thermal paper has been widely used in e-commerce, logistics labels, online reservation tickets, lottery tickets, handheld terminal vouchers, electronic invoices, automatic Parking tickets, train and subway bills, personalized handbook printing paper, etc. are all aspects of people's lives. [0003] During the working process, the leuco dye and the color developer in the color layer of the thermal paper are heated and melted when passing through the print head of the thermal printer, and the leuco dye accepts the proton provided by the color developer to develop color. [0004] However, the inventors of the present application have found in the long-term research and development pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H19/82D21H19/42D21H21/28
CPCD21H27/00D21H19/822D21H19/42D21H21/28
Inventor 胡晓春李娟周晶李吉维
Owner GOLD HUASHENG PAPER SUZHOU IND PARK
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