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A photosensitive-thermosensitive microcapsule and photosensitive-thermosensitive recording material containing same

A recording material and microcapsule technology, applied in the field of photothermographic recording materials, can solve the problems of difficulty in obtaining high-resolution images, inability to achieve image output speed, complicated production processes, etc. The effect of cost reduction and saving precious metal silver

Active Publication Date: 2006-02-08
HEBEI UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composition of the recording material of the double support makes the production process complicated, and it is impossible to form a simple one-time coating. Moreover, the color developer exists in the coating in the form of solid particles, and it must flow when the temperature reaches its melting point. In this way, it can avoid the microcapsule rupture due to environmental impact and friction during storage and transportation, resulting in increased fog and deterioration of image quality. High, often greater than 100°C, and often need to jointly try multiple color developers, so the heating temperature must be above the melting point of all color developers; at the same time, in order to achieve ideal image reproducibility, the temperature The control accuracy requirements are also relatively high, so the requirements for processing equipment must be increased, and the satisfactory image output speed cannot be achieved.
At the same time, the size of the microcapsule is 0.8-2um. Although the image quality can be significantly improved compared with the pressure-developed recording material, compared with the AgX crystallite size of the imaging unit of the silver salt film, the size is generally 0.2-1um. Still not easy to get high resolution images

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1 Preparation of photothermographic microcapsules A

[0040] The ODB-2 (Longsheng company) of 30g, the TMPTA of 10g, the GTA of 10g and the beta-methyl naphthalene of 4g are added in the reaction bottle of 205 milliliters, stir, heat to dissolve, when being cooled to near room temperature, add 60g D-110N and 15ml of isophorone diisocyanate are used as oil-soluble polymerizable monomers, and 1.5ml of 184 is added as a photosensitive component under a safe lamp, and 8g of ethyl acetate is added and stirred to obtain an oil phase mixture.

[0041] Add 400ml concentration in the container of round bottom and be 4.5%, alcoholysis degree be 88%, average polymerization degree be the polyvinyl alcohol (PVA) aqueous solution of 2245, and add 20ml7# tensio-active agent (produced by Lucky Company of China), stir , to obtain the aqueous phase.

[0042] The oil phase mixture obtained above was slowly added to the water phase solution, and dispersed at a speed of 9000 r / min ...

Embodiment 2

[0043] The preparation of embodiment 2 photothermosensitive microcapsules B

[0044] Add 15g of CK-16 (Longsheng Company), 10g of 7600, 10g of GTA and 4g of β-methylnaphthalene to a 205ml reaction flask, stir, heat and dissolve, and when cooled to near room temperature, add 60g D-110N and 15ml of isophorone diisocyanate are used as oil-soluble polymerizable monomers, and 1.5ml of 184 is added as a photosensitive component under a safe lamp, and 8g of ethyl acetate is added and stirred to obtain an oil phase mixture.

[0045] Add 400ml of polyvinyl alcohol (PVA) aqueous solution with a concentration of 4.5%, an alcoholysis degree of 88%, and an average polymerization degree of 2295 in a round-bottomed container, and add 20ml of 7# surfactant (produced by China Lucky Company) , stirred to obtain an aqueous phase.

[0046] The oil phase mixture obtained above was slowly added to the water phase solution, and dispersed at a speed of 4000 r / min for 7 min using high-speed shear sti...

Embodiment 3

[0047] The preparation of embodiment 3 photothermosensitive microcapsules C

[0048] 30g dye precursor ODB (Longsheng company) and 6g dye precursor BLACK 15 (Weixun company) and the TMPTA of 10g, the DPHPA of 10g and the β-methylnaphthalene of 4g are added in the reaction bottle of 205 milliliters, stir, Heat to dissolve, and when it is cooled to close to room temperature, add 60g of D-110N and 15ml of isophorone diisocyanate as oil-soluble polymer monomers, and add 1.5ml of 184 as a photosensitive component under a safe lamp, and add 8g of acetic acid Ethyl ester, stirred to obtain an oil phase mixture.

[0049] Add 400ml of polyvinyl alcohol (PVA) aqueous solution with a concentration of 4.5%, an alcoholysis degree of 88%, and an average polymerization degree of 2295 in a round-bottomed container, and add 20ml of 7# surfactant (produced by China Lucky Company) , stirred to obtain an aqueous phase.

[0050] The oil phase mixture obtained above was slowly added to the water ...

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Abstract

The invention relates to a light temperature-sensing recording material of the light temperature-sensing microcapsule which comprises a capsule wall and a capsule core, wherein the material of the capsule wall is polyurea or polyurethane; the capsule core comprises a dry head body, a light burster, a light incorporation or cross bonding component and solution.

Description

technical field [0001] The invention relates to a microcapsule, in particular to a photothermographic recording material. Background technique [0002] Silver salt information recording material is an efficient optical information recording material, which integrates the reception, storage and reproduction of optical information, and has a wide range of applications in the fields of science and technology, military, medical and human daily life. However, the silver salt recording material uses precious metal silver as the raw material, the preparation process is complicated, and the environmental pollution is serious; and it needs to go through multiple links such as exposure, development, fixing and drying, which is slow and difficult to adapt to the rapid development of digital recording technology. output requirements. With the development of digital technology, people have increasingly urgent requirements for recording materials that are dry-processed, environmentally f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03C1/00G03F7/00G03F7/09G03F7/027
Inventor 李晓苇江晓利秦长喜田晓东
Owner HEBEI UNIVERSITY
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