Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Toning promoter for preparing diazo positive image sensitive paper

A technology of photosensitive paper and accelerator, applied in the field of toning accelerator, can solve the problems of difficulty in purchasing, slow development of ammonia fumigation, dull color tone, etc., and can solve the problem of long ammonia fumigation time, correction of color concentration, and shortening of color development time. Effect

Inactive Publication Date: 2009-11-18
武汉瑞阳化工有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the diazo positive image photosensitive paper made by the above materials and methods generally has the disadvantages of not bright colors and slow ammonia smoke development.
In order to solve these problems, many scientific and technological workers at home and abroad have conducted some research and found that some substances can catalyze the coupling reaction of the two-component diazo positive image photosensitive paper, but these substances are expensive and difficult to buy, and some of them can be used after use. It will greatly shorten the shelf life of diazo photosensitive paper, so many substances cannot be used in actual industrial production

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Accurately weigh 5g of coffee pharynx, 3g of ethylenethiourea, 15g of diethylurea, and 1g of tartaric acid, and mix them uniformly in a blender to obtain the substance of the present invention.

Embodiment 2

[0039] Example 2: Accurately weigh 8g of caffeine, 12g of dimethylurea, 6g of thiourea, 2g of tartaric acid, and 4g of 2-imidazolidinone, put them into a stirring mixer and mix evenly to obtain the substance of the present invention.

Embodiment 3

[0040] Embodiment 3: Accurately weigh 1 g of theophylline, 15 g of bis(N, N-methylbutyl) urea, 2 g of citric acid, and 5 g of 2-imidazolidinone, put into a stirring mixer and mix evenly to obtain the substance of the present invention .

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

The invention relates to a toning accelerator for preparing photosensitive materials, in particular to a toning accelerator for preparing diazo positive photosensitive paper. It contains 5%-55% caffeine, 5%-25% cyclic thiourea and 20%-75% alkyl urea. It solves the disadvantages that the diazo positive photosensitive paper made of existing photosensitive materials generally has a dull color tone and slow development of ammonia smoke. The invention has the obvious effects of correcting the color concentration, promoting color development and shortening the color development time, and its effect is more prominent under low temperature conditions, and can obtain the required image at one time, which solves the problem of long ammonia fumigation time under low temperature conditions. Light hair problem.

Description

technical field [0001] The invention relates to a toning accelerator for preparing photosensitive materials, in particular to a toning accelerator for preparing diazo positive photosensitive paper. Background technique [0002] Diazo positive photosensitive paper is a kind of drawing reproduction material widely used in construction, mechanical processing and other industries. Existing diazonium just like photosensitive paper is generally made by coating a layer of photosensitive material on the paper. ) and 2,3-dihydroxynaphthalene-6-sodium sulfonate and a diazo component and a coupling component are prepared by coupling reaction. The above photosensitive material has the advantages of simple preparation process and low manufacturing cost. However, the diazo positive image photosensitive paper made by the above-mentioned materials and methods generally has the disadvantages that the color tone is not bright, and the development of ammonia smoke is slow. In order to solve...

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 Patents(China)
IPC IPC(8): G03F7/016
Inventor 万洪
Owner 武汉瑞阳化工有限公司
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
Eureka Blog
Learn More
PatSnap group products