Imaging coating of single-layer UV-ink-resistant thermosensitive CTP plate

An ink and heat-sensitive technology, applied in the direction of coating, photosensitive materials used in optical mechanical equipment, etc., can solve the problems of difficult to achieve 100%, complex process, low yield, etc., to achieve difficult dissolution, simplified process, printing long life effect

Inactive Publication Date: 2018-07-27
上海宝士嘉印刷器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when preparing a double-layer coated CTP plate, the bottom layer is first coated on the surface of the aluminum plate base, and then the surface layer is coated to form a double-layer coating. Because the yield of the bottom layer and the surface layer is difficult to reach 100%, therefore, its The highest final yield can only reach 81%, so there are disadvantages of low yield, complicated process and high cost

Method used

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  • Imaging coating of single-layer UV-ink-resistant thermosensitive CTP plate
  • Imaging coating of single-layer UV-ink-resistant thermosensitive CTP plate
  • Imaging coating of single-layer UV-ink-resistant thermosensitive CTP plate

Examples

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Embodiment 1

[0038] Embodiment 1: a single-layer UV-resistant ink heat-sensitive CTP plate imaging coating, by mass percentage, includes the following components: solvent-resistant resin 10%; solubilizer 2%; solubilizing resin 3%; film-forming resin 65% %; solvent-resistant resin 1%; alkylphenol-formaldehyde resin 15.15%; alcohol-resistant solvent 1%; infrared absorbing dye 2%; dye 0.85%.

[0039] Among them, the solvent-resistant resin is acrylamide-acrylate polymer; the solubilizer is tetrahydrophthalic anhydride; The number-average molecular weight is 3000-5500, the number-average molecular weight of the film-forming resin is 6000-9000, the number-average molecular weight of the solvent-resistant resin is 10000-12000; IR Dye A from Eastman Kodak Company; the dye is ethyl violet.

[0040] Such as figure 1 As shown, the heat-sensitive CTP plate of UV ink-resistant double-layer coating in the prior art includes an aluminum plate base 1, and one side of the aluminum plate base 1 is provid...

Embodiment 2

[0042] Embodiment 2: A single-layer UV-resistant ink heat-sensitive CTP plate imaging coating is different from Example 1 in that, by mass percentage, it includes the following components: 37% solvent-resistant resin, 2% solubilizer, 3% solubilizing resin, 22% film-forming resin, 0% solvent-resisting resin; 30% alkylphenol-formaldehyde resin, 1% alcohol-resisting solvent, 3% infrared absorbing dye, and 2% dye.

Embodiment 3

[0043] Embodiment 3: a single-layer UV-resistant ink thermosensitive CTP plate imaging coating, the difference from Example 1 is that, by mass percentage, it includes the following components: 25% solvent-resistant resin, 8% solubilizer, 20% solubilizing resin, 30% film-forming resin, 0% solvent-resisting resin; 10% alkylphenol-formaldehyde resin, 0% alcohol-resisting solvent, 6% infrared absorbing dye, and 1% dye.

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Abstract

The invention discloses an imaging coating of a single-layer UV-ink-resistant thermosensitive CTP plate, relates to the technical field of printing plate coatings and solves the problems of low yield,complicated process and high cost of the conventional double-layer coated CTP plates. The imaging coating is prepared from components in percentage by mass as follows: 10%-60% of solvent-resistant resin, 2%-12% of a solubilizer, 3%-25% of dissolution promoting resin, 10%-65% of film-forming resin, 0-1% of dissolution inhibiting resin, 6%-30% of alkylphenol-formaldehyde resin, 0-20% of an alcohol-resistant dissolution inhibitor, 1%-6% of infrared absorption dye and 0.85%-2% of dye. Only one layer of the imaging coating is needed to be applied to the surface of a 1050 aluminium plate after holesealing, application of a priming coat is omitted, so that the process is simplified, yield is increased, and cost is reduced; the imaging coating is high in UV ink resistance, cannot be dissolved easily and is long in printing life.

Description

technical field [0001] The invention relates to the technical field of printing plate coating, more specifically, it relates to a single-layer UV-resistant ink heat-sensitive CTP plate imaging coating. Background technique [0002] Thermal CTP plate is an offset printing plate that uses 830nm laser for imaging. Due to its convenient production, moderate cost, bright room operation, high imaging quality and convenient use, it has already occupied a considerable proportion in the entire offset printing plate. . [0003] Ordinary heat-sensitive CTP plates can only be used for printing with ordinary offset printing inks. If applied to UV ink printing, its surface coating will be dissolved quickly under the action of UV ink, and its life will end after hundreds of printings. As UV ink printing is widely used in packaging printing, the demand for heat-sensitive CTP plates with UV ink resistance is becoming more and more urgent. [0004] At present, there are commercialized doubl...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G03F7/09C09D201/00C09D161/06C09D7/65
CPCC08L2205/025C08L2205/035C09D201/00G03F7/09C08L101/00C08L61/06
Inventor黄祖成陈翔风
Owner上海宝士嘉印刷器材有限公司