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A preparation method of coating liquid for forming a thermosensitive recording layer

A technology of thermal recording and coating liquid, applied in the directions of thermal coating, temperature recording method, copy/marking method, etc. Excellent stability and good imaging performance

Active Publication Date: 2020-05-05
南阳柯丽尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The patent document with publication number CN 102089154 A miniaturizes the dye particles in order to obtain a high-sensitivity thermosensitive recording material, but due to the miniaturization, the following problems arise: the storage stability of the coating liquid decreases, and due to the interaction with the color developer reaction to produce coloring, etc.

Method used

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  • A preparation method of coating liquid for forming a thermosensitive recording layer
  • A preparation method of coating liquid for forming a thermosensitive recording layer
  • A preparation method of coating liquid for forming a thermosensitive recording layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The coating solution for forming a thermosensitive recording layer is obtained by the following preparation method:

[0047] 1) Under slow stirring, sequentially add 14.3 parts of colorless dye microcapsules, 71.5 parts of color developer, 7 parts of polyvinyl alcohol, 3 parts of acrylic resin, 3 parts of styrene-acrylic emulsion and 1.2 parts of surfactant OBS. Once the raw materials are stirred evenly, add the next one;

[0048] 2) After all the addition is completed, adjust the viscosity of the obtained coating liquid with water until the viscosity measured by the 4 viscosity cup is 12 seconds;

[0049] 3) Filtrate with a wire-wound filter, and defoam statically for 7 hours under slow stirring until the bubbles are completely discharged.

[0050] Tu 4 Viscosity Cup is designed according to GB1723-79 GB1723-79 National Standard Paint Viscosity Measurement Method, and it is a widely used viscosity cup in this field. Under certain temperature conditions, measure the t...

Embodiment 2

[0068] The coating solution for forming a thermosensitive recording layer is obtained by the following preparation method:

[0069] 1) Under slow stirring, sequentially add 16.5 parts of colorless dye microcapsules, 66 parts of color developer, 8 parts of polyvinyl alcohol, 4 parts of acrylic resin, 4 parts of styrene-acrylic emulsion and 1.5 parts of surfactant OBS. Once the raw materials are stirred evenly, add the next one;

[0070] 2) After all the addition is complete, adjust the viscosity of the obtained coating liquid with water until the viscosity measured by the 4 viscosity cup is 13 seconds;

[0071] 3) Filtrate with a wire-wound filter, and defoam statically for 9 hours under slow stirring until the bubbles are completely discharged.

[0072] The leuco dye microcapsules are made of an oil phase and a water phase, the mass ratio of the oil phase and the water phase is 1:1.5, and the oil phase includes 2-phenylamino-3-methyl-6-di Butylaminofluorane, mineral spirits ...

Embodiment 3

[0088] The coating solution for forming a thermosensitive recording layer is obtained by the following preparation method:

[0089] 1) Under slow stirring, sequentially add 26 parts of colorless dye microcapsules, 52 parts of color developer, 10 parts of polyvinyl alcohol, 5 parts of acrylic resin, 5 parts of styrene-acrylic emulsion and 2 parts of surfactant OBS. Once the raw materials are stirred evenly, add the next one;

[0090] 2) After all the addition is completed, adjust the viscosity of the obtained coating liquid with water until the viscosity measured by the 4 viscosity cup is 14 seconds;

[0091] 3) Filtrate with a wire-wound filter, and defoam statically for 10 hours under slow stirring until the bubbles are completely discharged.

[0092] The leuco dye microcapsules are made of an oil phase and a water phase, the mass ratio of the oil phase and the water phase is 1:2.0, and the oil phase includes 2-phenylamino-3-methyl-6-di Butylaminofluorane, mineral spirits a...

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Abstract

The invention discloses a preparation method of coating liquid for forming a thermosensitive recording layer, and belongs to the technical field of thermosensitive coatings. The preparation method ofthe coating liquid for forming the thermosensitive recording layer comprises the following steps: 1) under slow stirring, sequentially adding the colorless dye microcapsules, the color developing agent, the polyvinyl alcohol, the acrylic resin, the styrene-acrylic emulsion and the surfactant, and adding the next kind of coating liquid after the raw materials are added every time and uniformly stirred; 2) after all the components are added, adjusting the viscosity of the obtained coating liquid with water; and 3) filtering by adopting a winding type filter, and standing and discharging bubblesfor 4-10 hours under slow stirring until the bubbles are completely discharged to obtain the coating liquid. The coating liquid for forming the thermosensitive recording layer is good in flowability and is used for thermosensitive imaging of a thermosensitive printing film, and the imaging performance and the storage stability of the thermosensitive printing film are improved.

Description

technical field [0001] The invention belongs to the technical field of heat-sensitive coatings, and in particular relates to a preparation method of a coating liquid for forming a heat-sensitive recording layer. Background technique [0002] With the development of digital technology and the continuous promotion of the concept of energy saving and environmental protection, image information recording technology with high resolution, green environmental protection, simple production and use, and fast recording speed has become an inevitable trend of development. Recording materials have become a research hotspot in the information industry. Thermosensitive microcapsule materials improve the resolution of information recording by controlling the particle size distribution of microcapsules, and have been widely used in the field of medical digital imaging. [0003] The patent document with publication number CN 102089154 A miniaturizes the dye particles in order to obtain a hi...

Claims

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Application Information

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IPC IPC(8): C09D129/04C09D133/04C09D125/14C09D5/26B41M5/333B41M5/30
CPCC09D129/04C09D5/26B41M5/3331B41M5/30C08L33/04C08L25/14C08K9/10C08K5/18C08K5/13C08K5/41C08K5/1345C08K5/42
Inventor 范一兵张和平田原野李宾赵帅程莹
Owner 南阳柯丽尔科技有限公司
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