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Flexible photosensitive resin plate and preparation method thereof

A photosensitive resin, flexible technology, applied in the field of photographic plate making, can solve the problems of reducing the photosensitive speed of flexo plate, large exposure latitude of flexo plate, complicated process, etc. Effect

Inactive Publication Date: 2010-07-07
LUCKY HUAGUANG GRAPHICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

U.S. Patent No. 5,496,685 adds an effective amount of UV absorber to the photoelastomer to capture the scattering of ultraviolet light, thereby improving the exposure latitude, but the presence of UV absorber seriously affects or reduces the photosensitive speed of the flexographic plate
European patent EP0084851 adds a multi-layer composite film on the upper layer of the photosensitive elastomer, and the multi-layer composite film is photosensitive or is photosensitive in the middle and late stages of calendering. The flexographic plate prepared by this method has a large exposure tolerance, but the process is complicated. High difficulty

Method used

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  • Flexible photosensitive resin plate and preparation method thereof
  • Flexible photosensitive resin plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Add thermoplastic elastomer SIS D-1160, plasticizer polybutadiene Ricon 154, photoinitiator 651, stabilizer 264, unsaturated monomer, dye transparent green G (Solvent Green 20, anthraquinone) in proportion to dense In the mill, mix at 110 ° C for 35 minutes to obtain a photosensitive resin; take a certain amount of photosensitive resin and put it into the mold, and compound the protective film 5 with the release layer 4 and the support with the adhesive layer 2 on both sides respectively. 1. Use a flat vulcanizer to heat press for 190 seconds at a temperature of 20°C and a pressure of 0.15MPa, and obtain a flexible photosensitive resin plate after cooling. Plate thickness 1.14mm. The amount of dye transparent green G used was 0.01% by weight of the photosensitive resin layer 3 .

[0031] The protective film 5 with the release layer 4 is produced by the second film factory of Lucky Group.

[0032] The support body 1 with the adhesive layer 2 is produced by the second f...

Embodiment 2

[0034] Add thermoplastic elastomer SIS D-1165, plasticizer polybutadiene Ricon 154, photoinitiator 651, stabilizer 264, unsaturated monomer, dye transparent green 6G (Solvent Green 28, anthraquinone) in proportion to dense In the mill, mix at 150°C for 25 minutes to obtain a photosensitive resin; take a certain amount of photosensitive resin and put it into a mold, and composite a protective film 5 with a release layer 4 on both sides and a support with an adhesive layer 2 on both sides. 1. Use a flat vulcanizer to heat press for 180 seconds at a temperature of 150 ° C and a pressure of 14 MPa, and after cooling, a flexible photosensitive resin plate is obtained, and the thickness of the plate is 1.70 mm. The amount of the dye transparent green 6G is 0.05% by weight of the photosensitive resin layer 3 .

[0035] The protective film 5 with the release layer 4 is produced by the second film factory of Lucky Group.

[0036] The support body 1 with the adhesive layer 2 is produce...

Embodiment 3

[0038]The thermoplastic elastomer SIS D-1107, plasticizer polybutadiene Ricon 154, photoinitiator 184, stabilizer 264, unsaturated monomer, neutral red, dye transparent green 5B (Solvent Green 3, anthraquinones) The photosensitive resin is prepared by adding a certain amount of photosensitive resin into the internal mixer according to the proportion, and mixing at 120°C for 30 minutes. The support 1 of 2 was hot-pressed with a flat vulcanizer at a temperature of 50° C. and a pressure of 2 MPa for 182 seconds, and after cooling, a flexible photosensitive resin plate was obtained, and the plate thickness was 3.94 mm. The amount of the dye transparent green 5B is 1.0% by weight of the photosensitive resin layer 3 .

[0039] The protective film 5 with the release layer 4 is produced by the second film factory of Lucky Group.

[0040] The support body 1 with the adhesive layer 2 is produced by the second film factory of Lucky Group.

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Abstract

The invention relates to a flexible photosensitive resin plate, which comprises a support body (1), a bonding layer (2), a photosensitive resin layer (3), an anti-sticking layer (4) and a protective film (5) from bottom to top. The photosensitive resin layer (3) comprises at least one photochromic dye. The usage amount of the photochromic dye is 0.001-1% of the solid amount of the photosensitive layer. In the plate making process of the flexible photosensitive resin plate, the vision contrast is good, so that the operator can conveniently judge the plate making effects of patterns, characters and the like, and the plate has good exposure tolerance at the same time.

Description

technical field [0001] The invention belongs to the technical field of photographic plate making of printing surfaces, in particular to a flexible photosensitive resin plate and a preparation method thereof. Background technique [0002] At present, flexible photosensitive resin plates are widely used in the printing of easily deformed or soft substrates such as cartons, flexible packaging, and labels. [0003] Usually, a film with a pattern or text is placed on an unexposed flexographic plate containing a photo-elastomer, exposed to ultraviolet light, and the transparent part of the film is transmitted through ultraviolet light, and the initiator in the photo-elastomer is decomposed into free radicals to initiate cross-linking. The monomer reacts and cures. The areas that do not pass through the ultraviolet rays cannot be cross-linked, and the difference in their solubility in the developing solution is used to rinse and develop to obtain a relief image containing a charac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/09
Inventor 李志勇高英新王国才
Owner LUCKY HUAGUANG GRAPHICS
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