Multicolor thermal recording medium

一种热敏记录介质、热敏记录的技术，应用在温度记录法、复制/标记方法、印刷等方向，能够解决不足以得到低温显色图像、胶囊破坏等问题

Inactive Publication Date: 2005-07-13
NIPPON PAPER IND CO LTD
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this method can solve the problem of capsule destruction, it is not enough to obtain clear low-temperature chromogenic images and clear high-temperature chromogenic images

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multicolor thermal recording medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0366] ① Solution (dispersion of red dye precursor)

[0367] 3,3′-bis(1-n-butyl-2-methylindol-3-yl)-2-benzo[c]furanone 30.0 parts

[0368] 10% polyvinyl alcohol aqueous solution 50.0 parts

[0369] 20.0 parts of water

[0370] The mixture of the above components was ground with a sand mill to an average particle size of 1 μm.

[0371] ②Solution (dispersion of color developer)

[0372] 4-Hydroxy-4′-isopropoxydiphenylsulfone 30.0 copies

[0373] 10% polyvinyl alcohol aqueous solution 50.0 parts

[0374] 20.0 parts of water

[0375] The mixture of the above components was ground with a sand mill to an average particle size of 1 μm.

[0376] ③Solution (dispersion of photosensitizer)

[0377] 1,2-bis(phenoxymethyl)benzene 30.0 copies

[0378] 10% polyvinyl alcohol aqueous solution 50.0 parts

[0379] 20.0 parts of water

[0380] The mixture of the above components was ground with a sand mill to an average particle size of 1 μm.

[0381] ...

Embodiment 2

[0389] A thermosensitive recording medium was prepared using the same method as in Example 1 except that the black composite fine particle B dispersion was used instead of the black composite fine particle A dispersion.

Embodiment 3

[0391] A thermosensitive recording medium was prepared using the same method as in Example 1 except that the black composite fine particle C dispersion was used instead of the black composite fine particle A dispersion.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A multicolor thermosensitive recording medium characterized in that at least one dye precursor and a polymer of a polyisocyanate component form composite particles, and the polyisocyanate component includes 4,4'-diisocyanate-3,3'-dimethyl -1,1'-biphenyl and / or polymethylene·polyphenyl·polyisocyanate.

Description

field of invention [0001] The present invention relates to a multicolor thermosensitive recording medium using composite fine particles composed of a dye precursor and a polymer. Background of the invention [0002] The thermosensitive recording method refers to setting a thermosensitive chromogenic layer, which is mainly composed of a colorless or light-colored electron-donating dye precursor and an electron-accepting chromogenic agent on a substrate, and by using A thermal head, a thermal pen or a laser beam heats the dye precursor and the color developer to react instantaneously to obtain a method for recording an image. This method is disclosed in Japanese Patent Publication No. 43-4160 or 45-14039 In public. This thermal recording method does not require developing and fixing processes, and can obtain an image of an appropriate shape with simple equipment. Also, these devices have the advantages of being relatively cheap, compact, maintenance-free, and noiseless. The...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/28B41M5/30B41M5/337B41M5/34
CPCB41M5/3372B41M5/3375B41M5/34
Inventor 永井龙夫滨田薰福地忠一佐佐木隆
Owner NIPPON PAPER IND CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap