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Heat-sensitive positive image CTP (Computer To Plate) photosensitive resist liquid and preparation method thereof

A heat-sensitive positive image, photosensitive adhesive technology, applied in optical mechanical equipment, patterned surface photoengraving process, optics, etc., can solve the problem that photosensitive adhesive cannot meet the demand, strict technical barriers, unavailability, etc., to achieve storage stability Decreased, high photosensitivity, thermal decomposition effect

Active Publication Date: 2012-10-03
CHANGSHA SHENGHUI NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now the photosensitive coating technology of all these plates is in the hands of international printing giants, and the technical barriers are so strict that it is impossible to obtain
At present, domestic photosensitive adhesives not only cannot meet the demand in quantity, but also cannot compare with imported ones in quality.

Method used

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  • Heat-sensitive positive image CTP (Computer To Plate) photosensitive resist liquid and preparation method thereof
  • Heat-sensitive positive image CTP (Computer To Plate) photosensitive resist liquid and preparation method thereof
  • Heat-sensitive positive image CTP (Computer To Plate) photosensitive resist liquid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Reaction of Propylene Pimaric Acid with Ethylene Glycol Divinyl Ether

[0053] Add 37.4g (0.1mol) of acrylpimaric acid and 11.4g (0.1mol) ethylene glycol divinyl ether in a 500ml four-neck flask equipped with mechanical stirring, a thermometer, and a condenser tube, add 50ml of xylene, heat and stir to make It dissolves, the temperature is raised to 120-130° C., and the reaction is completed after stirring for 4 hours.

[0054] Infrared spectrum of this solvent-repellent polymer: see figure 1 :

[0055] In the infrared spectrum at 3400cm -1 and 1690cm -1 The absorption of the nearby carboxyl group disappears, and the ethylene double bond is at 1635cm -1 The absorption peak basically disappeared, indicating that the reaction was complete.

[0056] Preparation of heat-sensitive CTP photosensitive glue:

[0057] First, 0.5g of infrared dye (produced by Beijing Chemical Reagent Factory), 1.25g of acid generator with structure such as (VI), 0.08g of crystal violet, and...

Embodiment 2

[0061] Reaction of Propylene Pimaric Acid with 1,4-Butanediol Divinyl Ether

[0062] Add 37.4g (0.1mol) of propylene pimaric acid and 14.2g (0.1mol) of butanediol divinyl ether in a 500ml four-necked flask equipped with mechanical stirring, a thermometer, and a condenser, add 50ml of xylene, heat and stir to make it Dissolve, heat up to 120-130°C, and stir for 4 hours to complete the reaction.

[0063] In the infrared spectrum at 3400cm -1 and 1690cm -1 The absorption of the nearby carboxyl group disappears, and the ethylene double bond is at 1635cm -1 The absorption peak basically disappeared, indicating that the reaction was complete.

[0064] Preparation of heat-sensitive CTP photosensitive glue:

[0065] At first the infrared dye (produced by Beijing Chemical Reagent Factory) with 0.6g structure as (V), the acid generator (wherein R is ethyl) shown in 1.4g structure as (III), 0.3g methylene blue, 16.5g phenolic resin ( Hebei Chengfeng Resin Factory) is dissolved in 50...

Embodiment 3

[0067] Reaction of Propylene Pimaric Acid with 1,4-Divinyloxymethylcyclohexane

[0068] Add 37.4g (0.1mol) of propylene pimaric acid and 19.6g (0.1mol) of 1,4-divinyloxymethylcyclohexane into a 500ml four-necked flask equipped with mechanical stirring, a thermometer, and a condenser, and add 50ml of cyclohexane Hexanone was dissolved by heating and stirring, and the temperature was raised to 120-130° C., and the reaction was completed by stirring for 4 hours.

[0069] In the infrared spectrum at 3400cm -1 and 1690cm -1 The absorption of the nearby carboxyl group disappears, and the ethylene double bond is at 1635cm -1 The absorption peak basically disappeared, indicating that the reaction was complete.

[0070] Preparation of heat-sensitive CTP photosensitive glue:

[0071] First, 0.8g of an infrared dye (produced by Beijing Chemical Reagent Factory), 1.2g of an acid generator (wherein R is a phenyl group) with a structure such as (III), 0.3g of malachite green, and 13.38g...

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Abstract

The invention discloses a heat-sensitive positive image CTP (Computer To Plate) photosensitive resist liquid. The solid content of the photosensitive resist liquid is 10-40 percent; the adopted solvent is one or more of ethyl methyl ketone, ethylene glyeolmonobutyl ether, ethylene glycol monoemethyl ether, butyl acetate, dioxane or tetrahydrofuran; and a solid raw material comprises the followingcomponents in percentage by weight: 1-20 percent of photo-thermal acid-producing agent, 50-80 percent of film forming resin, 10-40 percent of dissolution inhibiting and promoting agent, 1-10 percent of infrared dye and 0.1-5 percent of coloring background dye. The heat-sensitive CTP photosensitive resist liquid has the characteristics of high alkali resistance, high developing tolerance level, high sensitivity, high mesh point reducibility, high plate making resistance, no need of ageing and high storage stability of the resist liquid and a printing plate material.

Description

technical field [0001] The invention relates to a thermosensitive positive CTP photosensitive glue solution and a preparation method thereof. Background technique: [0002] Computer to Plate (CTP for short) refers to the process of directly outputting graphics and text to the printing plate through the computer, mainly refers to the off-line direct plate making process. CTP technology converts digital pages directly into printing plates, eliminating the need for traditional prepress procedures and corresponding equipment such as laser phototypesetting photosensitive film or electronic color separation film imposition, printing, and PS plate washing. It not only simplifies the production process, reduces the printing cost, but also avoids the dot loss in the process of image information transfer, and can also apply the frequency modulation network on a large scale, improving the process quality and production efficiency. [0003] At present, the CTP technology develops very ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/039
Inventor 王力元刘云毛婷婷胡汉忠
Owner CHANGSHA SHENGHUI NEW MATERIAL CO LTD