CN110187605A - Coating is imaged in heat-sensitive CTP plate - Google Patents
Coating is imaged in heat-sensitive CTP plate Download PDFInfo
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- CN110187605A CN110187605A CN201910434963.5A CN201910434963A CN110187605A CN 110187605 A CN110187605 A CN 110187605A CN 201910434963 A CN201910434963 A CN 201910434963A CN 110187605 A CN110187605 A CN 110187605A
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- resin
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
Abstract
The invention discloses a kind of heat-sensitive CTP plates, and coating is imaged, and in particular to coating is imaged in a kind of stability, the preferable heat-sensitive CTP plate of coating, constitutes solvent resistant resins by following component；Alkali soluble resin；Film-forming resin；Solubilizer；Add resin；Hinder molten dissolution resin；Infrared absorbing dye；Dyestuff；Wherein, alkali soluble resin is containing modified resin made of the copolymerization of alkali solubility structures alone, acrylamide structures alone and/or sulfonamide structure monomer；The molten dissolution resin of resistance is phenol etherified resin.There is preferable pressrun and solvent resistance using CTP plate made from above-mentioned formula, while there is relatively low sensitivity.
Description
Technical field
The present invention relates to the imaging coating technology field CTP more particularly to the preferable thermosensitive CTPs of a kind of stability, coating
Version imaging coating.
Background technique
CTP direct plate maker and film setter structural principle are similar.Rise platemaking equipment be to be directly controlled with computer, with swash
Optical scanning imaging, then pass through development, be fixed the printing plate for generating the printing that is directly available on the machine.Computer direct plate making is using digitlization
Text, image are directly changed into number, directly generate printing plate by workflow, eliminate film this material, artificial layout
Process, semi-automatic or full-automatic printing down process.
Printing plate by infrared laser scan exposure direct imaging is one of CTP plate, referred to as heat-sensitive CTP plate
Material.This Thermal sensitive plate generally comprises one containing hydrophilic carrier and a heat-sensible high polymer coating, the heat-sensible high polymer coating
Either negative type is also possible to positive-type, it can produce heat under infrared laser irradiation and plate coating caused to change
Become.Due to its is convenient for production, moderate cost, can brightroom operation, image quality is high, easy to use, in entire offset plate material
In occupy sizable ratio.
Common thermal CTP plate material is only available for the printing of common offset ink, skin covering of the surface bad to the adhesiveness of version base
It is crisp, wear no resistance, press resistance rate when making lithographic plate is low, and solvent resistance is poor, especially lower to the print journey of UV ink.If be applied to
The printing of UV ink, surface covering are dissolved quickly under the action of UV ink, and the service life comes to an end after printing several hundred prints.Due to
UV ink is printed on more and more wider, the demand to the thermal CTP plate material with the ink performance of resistance to UV of application in terms of packages printing
Also more more and more urgent.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of heat-sensitive CTP plates, and coating is imaged, by alkali
The raw materials such as molten resin, the molten dissolution resin of resistance, film-forming resin are modified and preferably, preferably bond so that plate obtained has
Property, while there is preferable pressrun and solvent resistance.
Technical scheme is as follows:
A kind of heat-sensitive CTP plate imaging coating, is imaged coating for single layer heat-sensitive CTP plate, is grouped by each group of following parts by weight
At:
Solvent resistant resins: 10-50 parts；
Alkali soluble resin: 2-10 parts；
Film-forming resin: 10-50 parts；
Solubilizer: 2-10 parts；
Addition resin: 10-20 parts；
Hinder molten dissolution resin: 0.5-2 parts；
Infrared absorbing dye: 1-5 parts；
Dyestuff: 1-3 parts；
Wherein, alkali soluble resin is to contain alkali solubility structures alone, acrylamide structures alone and/or sulfonamide structure monomer
Modified resin made of copolymerization；
The molten dissolution resin of resistance is phenol etherified resin, has synthesis simply, the small feature of dosage.
Preferably, the solvent resistant resins are acrylamide and acrylic acid ester polymer, polyacrylamide-acrylic acid spy
Any one in butyl benzene base ester, polymethacrylamide-methacrylic acid tert-butylbenzene base ester.
Preferably, the film-forming resin is adjacent or p toluene sulfonamalde formalde hyde resin.This resin has hardness big, compatible
Property it is preferable, and have solvent resistance.
Preferably, the solubilizer is acid agent, and acid agent is that dyeing often uses acid agent, such as sulphonic acid ester, phosphate,
One kind or combination of aromatic esters etc..
Preferably, the addition resin is that polyurethane polymer, vinyl-addition polymer, esters of acrylic acid addition are poly-
Close any one in object.To increase the mechanical strength of coating, it is adjusted to film tension, convenient in conjunction with ink.
Preferably, it is that 5%-50% is (excellent that the alkali soluble resin alkali solubility structures alone, which accounts for the mass percent of alkali soluble resin,
It is selected as 15-50%), the mass percent that acrylamide structures alone accounts for alkali soluble resin is 5%-60% (preferably 10-50%),
Surplus be sulfonamide structure monomer, wherein alkali solubility structures alone be cyclic structure and with hydroxyl (methyl) acrylate,
Such as bisphenol fluorene type (epoxy) acrylate.The weight average molecular weight for obtaining alkali soluble resin is 20000-150000.
Preferably, the phenolic ether resin syntheses processes are as follows: at 40 DEG C, using sulfamic acid as catalyst, and vinyl second
Ether reacts 12h with phenolic hydroxyl group resin molar ratio 3:1, washes and is dried in vacuo to obtain the final product after reaction, is added in resin when use
Stirring and dissolving.Wherein, poly(4-hydroxystyrene), weight average molecular weight 10000-30000 can be selected in phenol resin.
Preferably, the infrared absorbing dye is cyanine dye.
Preferably, the dyestuff is ethyl violet or Victoria blue.
Preferably, the weight of the coating is 0.5-2g/m2。
When using coating in the present invention, it is also desirable to handle carrier, processing method and existing common process phase
Together, it is not repeating herein.
It is in the present invention the utility model has the advantages that alkali soluble resin is total using alkali soluble monomer and solvent resistance monomer based on features described above
Poly- form forms resin, has both alkali solubility and solvent resistance；Solvent resistant resins can enhance the dissolution for resisting UV ink
Ability；Film-forming resin is adjacent or p toluene sulfonamalde formalde hyde resin, has good hardness, at the same with phenolic resin, sulfonamide.
Amide etc. has preferable compatibility, while having sulfuryl amine group, and have certain antilysis；Solubilizer and the molten dissolution of resistance
Resin, which can act synergistically, can increase coating development dissolubility, protect figure, increase resolving power；Addition resin can increase coating
Mechanical strength, film tension is adjusted to, convenient in conjunction with ink.
Specific embodiment
Combined with specific embodiments below the present invention is made further to explain.
The synthesis of alkali soluble resin:
In four-hole boiling flask, blender, condenser pipe, dropping funel are loaded onto, and is passed through nitrogen and excludes oxygen in bottle, is added molten
In bisphenol fluorene type (epoxy) acrylate 133.9g, acrylamide 71.1g and the sulfonamide 48.1g of methoxybutyl acetic acid esters,
Stirring and dissolving is opened, slowly heats up, is reacted at 90-100 DEG C of temperature, reaction 12h is cooled to room temperature, then after reaction
Reaction mixture is slowly added into 10L distilled water, white solid is obtained, is filtered, cleaning three times, is placed in vacuum oven and does
It is dry.
Embodiment 1
A kind of heat-sensitive CTP plate imaging coating, is imaged coating for single layer heat-sensitive CTP plate, is grouped by each group of following parts by weight
At: solvent resistant resins: 30 parts；Alkali soluble resin: 8 parts；Film-forming resin: 20 parts；Solubilizer: 5 parts；Addition resin: 10 parts；It hinders molten
Dissolution resin: 1 part；Infrared absorbing dye: 5 parts；Dyestuff: 1 part.
Wherein, solvent resistant resins are acrylamide and acrylic acid ester polymer；Film-forming resin is that solubilizer is adjacent or to first
Benzsulfamide formaldehyde resin；Solubilizer is sulphonic acid ester；Addition resin is polyurethane polymer, molecular weight 2000-10000；
Infrared absorbing dye is cyanine dye；Dyestuff is ethyl violet.
Embodiment 2
A kind of heat-sensitive CTP plate imaging coating, is imaged coating for single layer heat-sensitive CTP plate, and difference from Example 1 is,
It is grouped as by each group of following parts by weight: solvent resistant resins: 35 parts；Alkali soluble resin: 8 parts；Film-forming resin: 25 parts；Solubilizer:
6 parts；Addition resin: 12 parts；Hinder molten dissolution resin: 1 part；Infrared absorbing dye: 5 parts；Dyestuff: 1 part.
Embodiment 3
A kind of heat-sensitive CTP plate imaging coating, is imaged coating for single layer heat-sensitive CTP plate, and difference from Example 1 is,
It is grouped as by each group of following parts by weight: solvent resistant resins: 35 parts；Alkali soluble resin: 8 parts；Film-forming resin: 30 parts；Solubilizer:
5 parts；Addition resin: 12 parts；Hinder molten dissolution resin: 1 part；Infrared absorbing dye: 5 parts；Dyestuff: 2 parts.
Wherein, solvent resistant resin is polyacrylamide-acrylic acid tert-butylbenzene base ester.
Embodiment 4
A kind of heat-sensitive CTP plate imaging coating, is imaged coating for single layer heat-sensitive CTP plate, and difference from Example 3 is,
It is grouped as by each group of following parts by weight: solvent resistant resins: 40 parts；Alkali soluble resin: 8 parts；Film-forming resin: 35 parts；Solubilizer:
6 parts；Addition resin: 15 parts；Hinder molten dissolution resin: 1 part；Infrared absorbing dye: 5 parts；Dyestuff: 2 parts.
Embodiment 5
A kind of heat-sensitive CTP plate imaging coating, is imaged coating for single layer heat-sensitive CTP plate, and difference from Example 3 is,
It is grouped as by each group of following parts by weight: solvent resistant resins: 35 parts；Alkali soluble resin: 8 parts；Film-forming resin: 30 parts；Solubilizer:
6 parts；Addition resin: 15 parts；Hinder molten dissolution resin: 1 part；Infrared absorbing dye: 5 parts；Dyestuff: 1 part.
Measured performance parameter
Measuring method: dissolution filter is mixed in each ingredient of embodiment and removes impurity, extrusion coated is in roughness Ra
It is 0.38-0.4 μm, quality of oxide layer is 2.0-3.0 grams/m, by 1050 aluminum substrates of sealing of hole, solvent is residual after drying
Allowance control is 3% hereinafter, coating weight control is in 1.5-1.6g/m2, 465mm × 380mm breadth is taken, in section thunder TP-2624E
It is imaged on laser platemaker, is developed 25 seconds for 23 DEG C in DV-T developer solution, tested site with iCPlate, tested with acetone
The coating of full exposure region, which remains, determines which rank of energy laser just can clear bottom；The version being baked is dripped to UV ink car wash water
Surface is blotted after 1 minute with paper handkerchief, tests the optical density (OD) D1 for the part that liquid contacted respectively with Ai Seli densimeter 504
With periphery not in contact with the optical density (OD) D2 of liquid portion, calculates the value of D1/D2 and compared with common thermal CTP plate material；D1/D2
Value it is bigger, show that the ability of the ink of resistance to UV car wash water is better, carry out UV ink printing when, pressrun is also higher；Sensitivity test.
Test result is shown in Table 1:
1 performance parameter result of table
Test result analysis, it is not difficult to find out that, CTP version coating of the invention is with preferable solvent resistance and resistance to from table 1
Power is printed, meanwhile, there is relatively low sensitivity.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. coating is imaged in a kind of heat-sensitive CTP plate, which is characterized in that coating is imaged for single layer heat-sensitive CTP plate, by following parts by weight
Each group is grouped as:
Solvent resistant resins: 10-50 parts；
Alkali soluble resin: 2-10 parts；
Film-forming resin: 10-50 parts；
Solubilizer: 2-10 parts；
Addition resin: 10-20 parts；
Hinder molten dissolution resin: 0.5-2 parts；
Infrared absorbing dye: 1-5 parts；
Dyestuff: 1-3 parts；
Wherein, alkali soluble resin is to be copolymerized containing alkali solubility structures alone, acrylamide structures alone and/or sulfonamide structure monomer
Made of modified resin；
The molten dissolution resin of resistance is phenol etherified resin.
2. coating is imaged in heat-sensitive CTP plate according to claim 1, which is characterized in that the solvent resistant resins are propylene
Amide-acrylate polymer, polyacrylamide-acrylic acid tert-butylbenzene base ester, polymethacrylamide-methacrylic acid are special
Any one in butyl benzene base ester.
3. coating is imaged in heat-sensitive CTP plate according to claim 1, which is characterized in that the film-forming resin is adjacent or to first
Benzsulfamide formaldehyde resin.
4. coating is imaged in heat-sensitive CTP plate according to claim 1, which is characterized in that the solubilizer is acid agent.
5. coating is imaged in heat-sensitive CTP plate according to claim 1, which is characterized in that the addition resin is to use polyurethane
Quasi polymer, vinyl-addition polymer, any one in esters of acrylic acid addition polymer.
6. coating is imaged in heat-sensitive CTP plate according to claim 1, which is characterized in that the alkali soluble resin alkali solubility structure
The mass percent that monomer accounts for alkali soluble resin is 5%-50%, and the mass percent that acrylamide structures alone accounts for alkali soluble resin is
5%-60%, surplus are sulfonamide structure monomer, and wherein alkali solubility structures alone is cyclic structure and (methyl) with hydroxyl
Acrylate.
7. coating is imaged in heat-sensitive CTP plate according to claim 1, which is characterized in that the phenolic ether resin syntheses processes
As follows: at 40 DEG C, using sulfamic acid as catalyst, vinyl ethyl ether reacts 12h, reaction knot with phenolic hydroxyl group resin molar ratio 3:1
It washes and is dried in vacuo after beam to obtain the final product.
8. coating is imaged in heat-sensitive CTP plate according to claim 1, which is characterized in that the infrared absorbing dye is cyanine
Dyestuff.
9. coating is imaged in heat-sensitive CTP plate according to claim 1, which is characterized in that the dyestuff is that ethyl violet or dimension are more
Leah is blue.
10. coating is imaged in heat-sensitive CTP plate according to claim 1, which is characterized in that the weight of the coating is 0.5-
2.0g/m2。
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| CN201910434963.5A CN110187605A (en) | 2019-05-23 | 2019-05-23 | Coating is imaged in heat-sensitive CTP plate |
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| CN201910434963.5A CN110187605A (en) | 2019-05-23 | 2019-05-23 | Coating is imaged in heat-sensitive CTP plate |
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| CN201910434963.5A Pending CN110187605A (en) | 2019-05-23 | 2019-05-23 | Coating is imaged in heat-sensitive CTP plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113126437A (en) * | 2021-02-26 | 2021-07-16 | 上海宝士嘉印刷器材有限公司 | UV-resistant ink CTP imaging coating, UV-resistant ink CTP and preparation method thereof |
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| CN113126437A (en) * | 2021-02-26 | 2021-07-16 | 上海宝士嘉印刷器材有限公司 | UV-resistant ink CTP imaging coating, UV-resistant ink CTP and preparation method thereof |
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| CB02 | Change of applicant information |
Address after: 314400 No. 396 Jiezhong Road, Haining Economic Development Zone, Jiaxing City, Zhejiang Province Applicant after: Haining Sumei Printing Technology Co.,Ltd. Address before: 314400 No. 396 Jiezhong Road, Haining Economic Development Zone, Jiaxing City, Zhejiang Province Applicant before: Haining Suomei Industry and Trade Co.,Ltd. |
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