CN109634057A - A kind of Uv and visible light sensing composition and obtained printing imageable element - Google Patents
A kind of Uv and visible light sensing composition and obtained printing imageable element Download PDFInfo
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- CN109634057A CN109634057A CN201811318819.7A CN201811318819A CN109634057A CN 109634057 A CN109634057 A CN 109634057A CN 201811318819 A CN201811318819 A CN 201811318819A CN 109634057 A CN109634057 A CN 109634057A
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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
Abstract
The present invention provides a kind of Uv and visible light sensing composition and using imageable element is printed made from the composition, the composition includes a kind of photosensitizer and a kind of polymer of hydroxyl pyrimidine group.So that the composition can be not only the radiosensitive of 350 ~ 450nm to maximum wavelength, and made of the composition can imaged printing form precursor also to the erosion of alcohols solvent have good resistance, the phenomenon that being not susceptible to printed chemical attack, dissolution in use, to be conducive to extend the service life of printing imageable element.
Description
Technical field
The invention belongs to offset lithography printing plate fields, and in particular to a kind of Uv and visible light sensing composition and
Using printing imageable element made from the composition.
Background technique
The imageable element for being used to prepare lithographic plate, which generally comprises, is applied to carrier water-wetted surface (or middle layer)
On one or more imageable layers, which includes one or more dispersion radiation-sensitive ingredients in a binder.
After radiant image, the exposure area of imageable layer or non-exposed areas are removed by suitable developer, expose lower section
Carrier water-wetted surface.If what is removed is exposure area, imageable element if is considered as positive image plate-making, on the contrary, if
What is removed is non-exposed region, which is considered as negative image plate-making.No matter which kind of situation, in imageable layer not by
The region of removing is ink receptive, and is then that receive water or aqueous solution (logical by the water-wetted surface that developing process exposes
It is often fountain solution) and repel ink.
In the prior art the radiation-sensitive ingredient for the imageable element of positive image plate-making be usually containing novolaks or
Other novolac polymer binders and diazonium quinone optical imaging components can image forming composition.In actual lithographic printing, commonly
Printing office chemicals to can image forming composition have corrosion function, such as plate cleaning agents, transfer cloth detergent and fountain solution in
Alcohol substitute, it is used especially in the printing process using ultraviolet solidifiable ink that there are high esters, ether
The purificant of class or flavonoid content.Therefore, in order to guarantee can ultraviolet curing ink normal printing, can make in image forming composition
Radiation sensitive composition must have good erosion resisting.
However, quinone di-azido compound commonly used in the prior art and phenolic resin radiation sensitive composition dissolve in
Clean galley alcohol ether solvents, be unfavorable for can ultraviolet curing ink printing.Therefore, how to improve can imaging suite
Object has become this field technical problem urgently to be resolved to the tolerance of solvent and printing office chemicals.
Summary of the invention
The technical problem to be solved in the present invention is that overcome it is existing for lithographjic platemaking can image forming composition vulnerable to print
Brush room chemical attack defect, and then provide a kind of pair of printing office chemicals with good resistance photosensitive perception compositions and
Using printing imageable element made from the composition.
The technical solution of present invention solution above-mentioned technical problem are as follows:
A kind of Uv and visible light sensing composition includes:
(a) at least one photosensitizer；With
(b) a kind of polymer of hydroxyl pyrimidine group (I):
(I).
The polymer of the hydroxyl pyrimidine group (I) is indicated by following construction formula (II):
— (A) m—(B)n—
(II)
Wherein A indicates that the repetitive unit comprising the hydroxy pyrimidine group, B indicate the repetition list for not including hydroxy pyrimidine group
Member, m is 10 70 mol %, and n is 30 90 mol %.
The A repetitive unit is indicated comprising the carbon-to-carbon derived from one or more ethylenic bond unsaturated polymerizable monomers
The repetitive unit of main chain, and the hydroxy pyrimidine group is connected to the main chain by a bivalent organic group-L-, it is excellent
Bivalent organic group-the L- of choosing is-(C=O)-O-CH2CH2-NR1-(C=O)-NR2, and R1And R2It can independently be expressed as
Hydrogen or alkyl, aryl or naphthenic base, that is, do not need while identical appearance, can be alternately present, such as R1=hydrogen, R2=aryl, it is excellent
Selection of land R1=R2=hydrogen.
The B repetitive unit indicates the repetitive unit for being derived from one or more following compounds: (methyl) acrylic acid
Ester, (methyl) acrylamide, (methyl) acrylonitrile, styrene or styrene derivative, vinylacetate, ethenyl pyrrolidone
Ketone, vinyl alcohol, maleimide or ring-opened maleic acid acid anhydride half ester.
The additive amount of the polymer of the hydroxyl pyrimidine group (I) accounts for 60 ~ 95wt% of the composition total weight.
The wavelength absorption range of the Uv and visible light sensitivity is 350 ~ 450nm.
The photosensitizer is diazonium naphthoquinone sulphonate class compound, and it is total that the additive amount of the photosensitizer accounts for the composition
5 ~ 40wt% of weight.
It may also contain a kind of background contrast's dyestuff, the background contrast in the Uv and visible light sensing composition
Dyestuff is ethyl violet, crystal violet, crystal violet, malachite green, brilliant green, victoria blue B, victoria blue R or Victoria blue
The additive amount of one of BO or a variety of, background contrast's dyestuff account for 0.1 ~ 8wt% of the composition total weight.
It may also contain a kind of binder in the Uv and visible light sensing composition, the binder can be selected from phenol
One of aldehyde resin, acrylic resin, polystyrene or polyurethane are a variety of, and the additive amount of the binder accounts for described group
Close 0.1 ~ 45wt% of object total weight
May also contain acid agent in the Uv and visible light sensing composition, the acid agent can be selected from salt, triazine,
One of acid anhydrides is a variety of, and the additive amount of the acid agent accounts for 0.1 ~ 10wt% of the composition total weight.
A kind of printing imageable element, by substrate carrier and coated in the substrate carrier based on claim 1-10
Described in any item Uv and visible light sensing composition compositions.
The substrate carrier is the aluminium base through electrolysis roughening and anodized.
In the present invention, the polymer of the hydroxyl pyrimidine group can pass through (methyl) third with hydroxy pyrimidine group
The polymerization reaction of olefin(e) acid ester or (methyl) acrylamide monomer prepares.
In the present invention, the wavelength absorption range of the Uv and visible light sensitivity is 350 ~ 450nm.
In the present invention, the photosensitizer is diazonium naphthoquinone sulphonate class compound, and further limits it and be esterified parent
It can be low molecule polyhydric phenols, be also possible to the phenols high-molecular compound such as linear phenolic resin；It is preferred that using line
Property diazonium naphthoquinone sulphonate class photosensitizer of the phenolic resin as esterification parent, such as 2, Isosorbide-5-Nitrae-diazonium naphthoquinone sulphonate phenolic aldehyde
Resin and 2, one of 1,5- diazonium naphthoquinone sulphonate phenolic resin or a variety of, the additive amount of the photosensitizer accounts for described group
Close the 5 ~ 40wt%, preferably 10 ~ 30wt% of object total weight.Other optional photosensitizers are also documented in many publications, including beauty
State's patent 4,971,887 and 5,279,918 and its cited bibliography.Currently preferred photosensitizer is 2,1,4- diazonium
Naphthoquinone sulfonic acid is esterified phenolic resin, for example derives from the PW205 of Merck company.
Uv and visible light sensing composition of the present invention may also contain background contrast's dyestuff, the background contrast
Dyestuff is triarylmethane dye, such as ethyl violet, crystal violet, crystal violet, malachite green, brilliant green, victoria blue B, Wei Duoli
One of sub- indigo plant R, victoria blue BO are a variety of.These compounds are used to distinguish in the imageable element of development unexposed
(unimaged) region and exposure (imaging) region.The additive amount of background contrast's dyestuff accounts for the 0.1 of the composition total weight
~ 8wt%, preferably 0.5 ~ 6wt%.
Uv and visible light sensing composition of the present invention may also contain binder, and the binder is selected from phenolic aldehyde
One of resin, acroleic acid resin, polystyrene or polyurethane are a variety of, and the additive amount of the binder accounts for the combination
0.1 ~ 45wt% of object total weight.In general, from the perspective of never weakening imageable element sensibility, polymeric binder
Usually alkali-soluble polymer, currently preferred polymeric binder are phenolic resin, and the condensation including phenol and formaldehyde is poly-
Close object, the condensation polymer of metacresol and formaldehyde, paracresol and formaldehyde condensation polymer ,/to cresols and formaldehyde
The contracting of the condensation polymer, burnt palmitic acid phenol and acetone of condensation polymer, phenol and cresols (, pair or/to mixture) and formaldehyde
Bonding copolymer, for example derive from the SPN452 phenolic aldehyde of the LB6564 phenolic resin of Hexion company, AZ electronics, inc.
The auspicious thing of resin and Benxi reaches Chemical Co., Ltd. BX20 phenolic resin.
Uv and visible light sensing composition of the present invention may also contain acid agent, and the acid agent is selected from
One of salt, triazine, acid anhydrides are a variety of, and the additive amount of the acid agent accounts for 0.1 ~ 10wt% of the composition total weight,
Preferably 0.5 ~ 5wt%.Acid agent is to cause to decompose the precursor for generating Bronsted acid by heat, according to the difference of electronegativity, produces acid
Agent can be divided into non-ionic acid agent and ionic acid agent, wherein non-ionic acid agent includes three that halogenated alkyl replaces
Piperazine, the triazine are described in United States Patent (USP) 3,779,778, such as bis- (trichloromethyl) s-triazine of 2- phenyl -4,6-, 2,4,6-
Bis- (trichloromethyl) s-triazine of three (trichloromethyl) s-triazine, 2- methyl -4,6-；Non-ionic acid agent further includes organic acid
Acid anhydrides, such as acetic anhydride, phthalic anhydride, tetrabydrophthalic anhydride, hexahydrophthalic anhydride, maleic anhydride, equal benzene
Tetracarboxylic acid dianhydride.Ionic acid agent includes salt, wherein cation is iodine, Liu, Phosphonium, oxygroup sulfoxonium
(oxysulphoxonium), oxygroup sulfonium (oxysulphonium), quaternary ammonium salt, diazonium, Huo Arsenic, common salt include two
Phenyl salt compounded of iodine, triphenyl sulfonium salt, Arenediazonium salts, tetraalkyl ammonium salt, four aryl quaternary ammonium salts, amino acid inner salt.This hair
Bright preferred acid agent includes triazine and acid anhydrides.
In addition to this, Uv and visible light sensing composition of the present invention can also include various additions in usual amounts
Agent, such as dispersing agent, moisturizer, biocide, plasticizer, the surfactant for coatability or other performance, thickening
Agent, filler and incremental agent, pH adjusting agent, desiccant, defoaming agent, preservative, antioxidant, development promoter, rheological characteristic are improved
Agent or their combination, or it is usually used in any other additives of lithography technique.
Printing imageable element of the present invention includes substrate carrier and coated in being imaged in the substrate carrier
Layer, the imageable layer are to be coated in above-mentioned Uv and visible light sensing composition in the substrate carrier to be made.Specifically
Say, be the Uv and visible light sensing composition is dispersed or dissolved in suitable coating solvent to form mixed solution, and
Using suitable equipment and program such as spin coating, cutter painting, rotogravure application, die coating, slit coating, stick painting, wire rod coating, roller coating or squeeze
Machine hopper coats out, and the mixed solution is applied on the surface of substrate carrier, can also be by spraying to suitable support
Body Uv and visible light sensing composition as described in applying on the printing cylinder of printing machine, it is then dry in 70 ~ 160 DEG C of baking ovens
The coating solvent is removed to get the lithographic printing plate precursor；Wherein the selection of the coating solvent depends on the purple
Outer and the polymeric binder in visible light-sensitive perception compositions and other polymer materials and non-polymeric ingredients property, usually
Use condition well known in the art and technology, including acetone, methyl ethyl ketone, tetrahydrofuran, 1- methoxy-2-propanol, 2-
One of ethyoxyl-ethyl alcohol, γ-fourth lactones is a variety of.
Imageable element actually of the invention can have any form, including but not limited to printing block precursor, print
Brush pot, print nest and printer belt (including flexible printing web).Preferably, imageable element of the invention is to be used to form lithographic plate
The lithographic printing plate precursor of galley.
For embodiment of the present invention, for can be with by the laser of lithographic printing plate precursor exposure of the invention
Be carbon arc lamp, high-pressure mercury-vapor lamp, xenon lamp, metal halide lamp, fluorescent lamp, tungsten lamp, halogen lamp, helium cadmium laser, argon laser,
FD-YAG laser, He-Ne Lasers, semiconductor laser (350nm -450nm) carry out image exposure to photosensitive layer.At present may be used
The launch wavelength of high-performance laser used in commercially available picture number code platemaking machine or laser diode is 405 nm, and imaging is set
Standby to be configurable to flat logger or drum recorder, wherein imageable element is installed to bulging inner or outer periphery.
Suitable exposure sources are for example: Xeikon UV device, the Cron(section thunder of BasysPrint) and Amsky (Poly spy)
The Nautilius equipment of CTcP imager, the Xpose UV machine of Liischer, ECRM.Sense depending on radiation sensitive layer
Luminosity generally uses 30 mJ/cm2To 500 mJ/cm2, preferably 50 mJ/cm2To 300 mJ/cm2Energy carry out this at
Picture.
It includes the standard that the sub-image of (exposure) and unimaged (unexposed) region is imaged that the imaging process of imageable element, which generates,
Then image-forming component rinses quasi- image-forming component for image by using suitable alkaline developer solution.Of the invention
In embodiment, the pH value of such aqueous base developers aqueous solution is generally at least 9, more preferably at least 11.The present invention is optional
Alkaline developer solution include that DV-T, DV-T1, DV-T8 (can be obtained from Zhejiang Kangerda New Material Co., Ltd
), GOLDSTAR Developer, GOLDSTAR Plus Developer, GOLDSTAR Premium Developer,
K300, K400 (can all be obtained from Eastman Kodak Company) and THD-200 (can be obtained from Agfa), these alkali
Property reagent solution also typically include surfactant, chelating agent and various alkaline agents for example inorganic metasilicates, it is organic partially
Silicate, hydroxide and carbonate.
After imageable element development, the imageable element can be washed with water and dried in any suitable manner, may be used also
With with conventional gum-solution, preferably Arabic gum handles its element, the element after imaging can also be placed in baking box into
Row baking processing, toasts 7 ~ 10 minutes, or toasted 30 minutes such as at 220 ~ 240 DEG C at 120 DEG C, can further improve in this way
The running life of resulting image-forming component.
It will finally be printed on printing surface that ink and fountain solution are coated to imageable element on lithographic offset machine
Brush, by the way that image-forming component is unexposed or unremoved area absorbs ink, and exposure area and substrate that is subjected to development and exposing
The water-wetted surface of carrier absorbs dampening solution, then by the printing ink transfer to suitable reception material such as cloth, paper, metal, glass
" transfer cloth " roller or on plastics, also can be used to be transferred to ink from imageable element and receive on material.
Compared with prior art, above-mentioned technical proposal of the invention has the advantages that
1, Uv and visible light sensing composition of the present invention, by introducing hydroxy pyrimidine group into polymer architecture,
It is a kind of excellent ultraviolet and can so that composition of the invention can be the radiosensitive of 350 ~ 450nm to maximum wavelength
Light-exposed sensing composition, and made of the composition printing imageable element to the erosion of isopropanol also have well it is resistance to
Resistance, therefore the imageable layer being prepared using Uv and visible light sensing composition of the present invention, in use process
In the phenomenon that being not susceptible to printed chemical attack, dissolution, to be conducive to extend the service life of printing imageable element.
2, Uv and visible light sensing composition of the present invention, main component are hydroxyl pyrimidine in chemical structure
The acroleic acid resin of group, compared to other resins, the advantage is that between other ingredients in resin and composition have compared with
Good intermolecular interaction and generate required alkali resistance and hinder molten ability.The present invention further defines the addition of the polymer
Amount accounts for 60 ~ 95wt% of composition total weight, has the advantage that the solvent resistance for improving imageable layer to the maximum extent in this way
Energy.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality
Applying example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.In addition, as long as technical characteristic involved in invention described below different embodiments does not constitute punching each other
It is prominent to be combined with each other.
Hydroxyl pyrimidine groupPolymer preparation:
(I)
Embodiment A: the acrylate monomer (QMM) of hydroxyl pyrimidine structure group is prepared
50 gram six is added into the four-neck flask reactor equipped with blender, condenser pipe, dropping funel, thermometer and water bath device
Methyl phosphoric triamide is simultaneously heated to 70o4.5 grams of 2- amino-4-hydroxy -6- methylpyrimidines are added in C under stiring.To the big portion of solid
After dividing dissolution, 0.005 gram of hydroquinone and 0.012 gram of dibutyl tin dilaurate are added.It is cooled down with ice-water bath molten in reactor
Liquid is to 18 DEG C.
By 6.5 grams of methylacryoyloxyethyl isocyanates from being slowly added dropwise in reactor in dropping funel, about half is small
When it is interior be added dropwise, in the process control reaction temperature be no more than 35 DEG C.0.012 gram of dibutyl tin dilaurate is added again, removes
Ice-water bath allows reaction solution to be stirred at room temperature 6 hours.Then 1.2 milliliters of concentrated hydrochloric acids are added into reaction solution, stir 15 minutes
Reaction solution is instilled into Precipitation solid in 500 ml water afterwards.Solid is put into the deionization of 100 ml after being collected with suction filtration method
In water after agitator treating 15 minutes, then after filtering and draining moisture content as far as possible, solid is collected.9.4 grams of white solids are obtained after drying
Product.
Embodiment B: the acrylate copolymer (PQM-1) of hydroxyl pyrimidine structure group is prepared
By 2.1 grams of QMM(product made from the above-mentioned synthetic example A), 1.5 gram of 4 '-hydroxy-2-methyl acryloyl aniline and 54
Gram N, N dimethyl acetamide are added in the four-necked bottle of a 150ml, blender in configuration, condenser pipe, dropping funel, temperature
Meter and channel of nitrogen.It is molten separately to prepare 4.0 grams of methyl methacrylates, 0.4 gram of methacrylic acid, 0.2 gram of azodiisobutyronitrile
Solution in 20 grams of N, N dimethyl acetamide, after be placed in dropping funel.The mixed liquor of four-necked bottle is heated to 70 under stirringoC.The monomer mixed solution being added dropwise in above-mentioned dropping funel, before half mixed liquor add within addition speed 10 minutes, control is anti-
Answer temperature 70 oCLeft and right, behind the other half mixed liquor add within addition speed 20 minutes.Continue in stirring and nitrogen and 70 oC
Lower reaction 6 hours, measures solid content 9%.It adds 0.05 gram of azodiisobutyronitrile to react again 8 hours, measuring solid content is 10% i.e.
Stop reaction.Reaction solution product after cooling is directly used in the preparation of Uv and visible light sensing composition in embodiment.
Embodiment C: the acrylate copolymer (PQM-2) of hydroxyl pyrimidine structure group is prepared
2.5 grams of QMM (product made from the above-mentioned synthetic example A) and 36 grams of N, N dimethyl acetamide are added to one
In the four-necked bottle of 150ml, blender in configuration, condenser pipe, dropping funel, thermometer and channel of nitrogen.Separately 3.2 grams of methyl of configuration
Methyl acrylate, 1.5 grams of styrene, 0.8 gram of methacrylic acid, 0.2 gram of azodiisobutyronitrile are dissolved in 22 grams of N, N dimethyl
In acetamide, after be placed in dropping funel.The mixed liquor of four-necked bottle is heated to 70 under stirring oC.It is added dropwise to above-mentioned dropping liquid leakage
Monomer mixed solution in bucket, before half mixed liquor add within addition speed 10 minutes, control reaction temperature 70 oCLeft and right, after
Addition speed 20 minutes of the other half mixed liquor of face add.Continue in stirring and nitrogen and 70 oCLower reaction 6 hours, measures containing solid
Amount 9%.It adds 0.05 gram of azodiisobutyronitrile to react again 8 hours, measuring solid content is 12% i.e. stopping reaction.It is after cooling anti-
Liquid product is answered to be directly used in the preparation of Uv and visible light sensing composition in embodiment.
Embodiment 1: lithographic printing plate precursor (PP-1) is prepared
Uv and visible light sensing composition in the present embodiment includes:
Emulsion PW205(is obtained from Merck company), 0.312 gram；
Crystal violet, 0.021 gram；
Resin PQM -1 of hydroxyl pyrimidine group made from Example B, 16.63 grams；
The each component of above-mentioned sensing composition is dissolved in the 1- methoxy-2-propanol (PM) and 11 grams of butanone institute group by 2 grams
At in the mixed solvent formed composition solution, using spinning solution by above-mentioned composition solution coating through electrochemistry roughening and
On the aluminum substrate that anodized obtains, then 2 minutes dry in 130 DEG C of baking ovens, that is, coating weight, which is prepared, is about
1.7 g/m2Lithographic printing plate precursor PP-1.
Embodiment 2: lithographic printing plate precursor (PP-2) is prepared
Uv and visible light sensing composition in the present embodiment includes:
Emulsion PW205(is obtained from Merck company), 0.155 gram；
Crystal violet, 0.021 gram；
Resin PQM -2 of hydroxyl pyrimidine group made from Example C, 15.97 grams；
The each component of above-mentioned sensing composition is dissolved in the 1- methoxy-2-propanol (PM) and 11 grams of butanone institute group by 3 grams
At in the mixed solvent formed composition solution, using spinning solution by above-mentioned composition solution coating through electrochemistry roughening and
On the aluminum substrate that anodized obtains, then 2 minutes dry in 130 DEG C of baking ovens, that is, coating weight, which is prepared, is about
1.7 g/m2Lithographic printing plate precursor PP-2.
Embodiment 3: lithographic printing plate precursor (PP-3) is prepared
Uv and visible light sensing composition in the present embodiment includes:
Emulsion PW205,0.358 gram；
Crystal violet, 0.021 gram；
Acrylic resin: 0.895 gram
14 grams of the resin PQM -1 of hydroxyl pyrimidine group made from Example B
The each component of above-mentioned sensing composition is dissolved in the 1- methoxy-2-propanol (PM) and 11 grams of butanone institute group by 4 grams
At in the mixed solvent formed composition solution, using spinning solution by above-mentioned composition solution coating through electrochemistry roughening and
On the aluminum substrate that anodized obtains, then 2 minutes dry in 130 DEG C of baking ovens, that is, coating weight, which is prepared, is about
1.7 g/m2Lithographic printing plate precursor PP-3.
Embodiment 4: lithographic printing plate precursor (PP-4) is prepared
Uv and visible light sensing composition in the present embodiment includes:
Emulsion PW205,0.198 gram；
Crystal violet, 0.021 gram；
Phenolic resin: 0.410 gram；
D:0.004 grams of triazine
Resin PQM -2 of hydroxyl pyrimidine group made from Example C, 12.02 grams
The each component of above-mentioned sensing composition is dissolved in the 1- methoxy-2-propanol (PM) and 8.4 grams of butanone institute group by 9 grams
At in the mixed solvent formed composition solution, using spinning solution by above-mentioned composition solution coating through electrochemistry roughening and
On the aluminum substrate that anodized obtains, then 2 minutes dry in 130 DEG C of baking ovens, that is, coating weight, which is prepared, is about
1.7 g/m2Lithographic printing plate precursor PP-4.
The lithographic printing plate precursor (PP-1, PP-2, PP-3, PP-4) that embodiment 1-4 is prepared is existed respectively one by one
405nm laser, drum rotating speed 1050rpm, laser are used in the UVP-820G+ type CTcP platemaking machine of CRON (section's thunder)
Power 45mW is scanned exposure.Master after exposure (derives from Zhejiang Kang Er with Konita DV-T developer solution at 25 DEG C
Up to new material limited liability company) development 40 seconds, the exposed portion for the lithographic printing plate precursor that embodiment 1-4 is obtained after development
Coating all dissolve completely, rather than the coating of exposed portion retains.Plate image clearly, clear-cut margin are neat.
Isopropanol solvent is added dropwise on the non-exposed partial coating of the lithographic printing plate of embodiment 1-4, by 10 seconds
Afterwards, the region that is added dropwise on the space of a whole page is dried, and region is added dropwise with densimeter measurement, the forward and backward density of isopropanol solvent is being added dropwise
Value, measurement result are as shown in table 1:
The non-exposed partial coating of 1 embodiment 1-4 of table is by the density value before and after dropwise addition isopropanol
The present invention is also provided with comparative example, for being better described by Uv and visible light sensing composition system of the present invention
The anti-isopropanol erosion performance of the lithographic printing plate precursor obtained.
Comparative example 1
According to the method for embodiment 1, by the tree of the hydroxyl pyrimidine group in the Uv and visible light sensing composition of embodiment 1
Lithographic printing plate precursor is made by 1.06 grams of LB6564 phenolic resin and 0.65 gram of BX20 phenolic resin substitution in rouge PQM-1
PP-1c。
Comparative example 2
According to the method for embodiment 2, by the tree of the hydroxyl pyrimidine group in the Uv and visible light sensing composition of embodiment 2
Lithographic printing plate precursor is made by 0.46 gram of LB6564 phenolic resin and 0.92 gram of BX20 phenolic resin substitution in rouge PQM-2
PP-2c。
Comparative example 3
According to the method for embodiment 3, by the Uv and visible light sensing composition of embodiment 3 50% hydroxyl pyrimidine group
Resin PQM-1 is substituted by 0.88 gram of LB6564 phenolic resin, and lithographic printing plate precursor PP-3c is made.
Comparative example 4
According to the method for embodiment 4, by the Uv and visible light sensing composition of embodiment 4 37% hydroxyl pyrimidine group
Resin PQM-2 is substituted by 0.5 gram of LB6564 phenolic resin, and lithographic printing plate precursor PP-4c is made.
One by one by lithographic printing plate precursor (PP-1c, PP-2c, PP-3c, PP-4c) obtained by above-mentioned comparative example 1-4
405nm laser, drum rotating speed are used in the UVP-820G+ type CTcP platemaking machine of CRON (section's thunder) respectively
1050rpm, laser power 45mW are scanned exposure.Master after exposure is aobvious with diluted Konita DV-PT at 25 DEG C
Shadow liquid (deriving from Zhejiang Kangerda New Material Co., Ltd) development 30 seconds, the lithographic plate print that comparative example 1-4 is obtained after development
The coating for stenciling the exposed portion of plate precursor all dissolves completely, rather than the coating of exposed portion retains.Plate image clearly, side
Edge is sharp keen neat.
Isopropanol solvent is added dropwise on the space of a whole page of the lithographic printing plate precursor of unexposed comparative example 1-4, by 10 seconds
Zhong Hou dries the region that is added dropwise on the space of a whole page, and region is added dropwise with densimeter measurement, forward and backward close of isopropanol solvent is being added dropwise
Angle value, measurement result are as shown in table 2:
The unexposed space of a whole page of 2 comparative example 1-4 of table is by the density value before and after dropwise addition isopropanol
From the density difference in Tables 1 and 2 as it can be seen that directly obtained compared to the phenolic resin by being free of hydroxy pyrimidine group can
Imaging layer, the imageable layer as made from the Uv and visible light sensing composition of the resin of hydroxyl pyrimidine group of the invention
Anti- isopropanol erosion performance is significantly improved, this has absolutely proved that Uv and visible light sensing composition of the invention has
Good UV/ visible optical radiation sensibility and stronger solvent resistance, can be used for manufacturing lithographic printing plate precursor.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (14)
1. a kind of Uv and visible light sensing composition, includes:
(a) at least one photosensitizer；With
(b) a kind of polymer of hydroxyl pyrimidine group (I):
(I).
2. Uv and visible light sensing composition according to claim 1, which is characterized in that the hydroxyl pyrimidine radicals
The polymer of group (I) is indicated by following construction formula (II):
—(A) m—(B)n—
(II)
Wherein A indicates that the repetitive unit comprising the hydroxy pyrimidine group, B indicate the repetition list for not including hydroxy pyrimidine group
Member, m is 10 70 mol %, and n is 30 90 mol %.
3. Uv and visible light sensing composition according to claim 2, which is characterized in that the A repetitive unit table
Show the repetitive unit comprising the carbon-carbon skeletal chain derived from one or more ethylenic bond unsaturated polymerizable monomers, and the hydroxyl
Yl pyrimidines group is connected to the main chain by a bivalent organic group-L-.
4. Uv and visible light sensing composition according to claim 3, which is characterized in that the bivalent organic group-
L- is-(C=O)-O-CH2CH2-NR1-(C=O)-NR2, and R1And R2Hydrogen or alkyl, aryl or ring can be independently expressed as
Alkyl.
5. Uv and visible light sensing composition according to claim 2, which is characterized in that the B repetitive unit table
Show the repetitive unit derived from one or more following compounds: (methyl) acrylate, (methyl) acrylamide, (methyl) third
Alkene nitrile, styrene or styrene derivative, vinylacetate, vinyl pyrrolidone, vinyl alcohol, maleimide or open loop horse
Carry out the half ester of acid anhydrides.
6. Uv and visible light sensing composition according to claim 1, which is characterized in that the hydroxyl pyrimidine group
(I) additive amount of polymer accounts for 60 ~ 95wt% of the composition total weight.
7. Uv and visible light sensing composition according to claim 1, which is characterized in that the Uv and visible light is quick
The wavelength absorption range of sense is 350 ~ 450nm.
8. Uv and visible light sensing composition according to claim 1, which is characterized in that the photosensitizer is attached most importance to quinoline
Diazide sulfonic acid ester class compound, the additive amount of the photosensitizer account for 5 ~ 40wt% of the composition total weight.
9. Uv and visible light sensing composition according to claim 1, which is characterized in that also comprising back in the composition
Scape comparative dye, background contrast's dyestuff be ethyl violet, crystal violet, crystal violet, malachite green, brilliant green, victoria blue B,
One of victoria blue R or victoria blue BO are a variety of, and the additive amount of background contrast's dyestuff accounts for the composition
0.1 ~ 8wt% of total weight.
10. Uv and visible light sensing composition according to claim 1, which is characterized in that also include in the composition
Binder, the binder can be selected from one of phenolic resin, acroleic acid resin, polystyrene or polyurethane or a variety of, institute
The additive amount for stating binder accounts for 0.1 ~ 45wt% of the composition total weight.
11. Uv and visible light sensing composition according to claim 1, which is characterized in that also include in the composition
Acid agent, the acid agent can be selected from one of salt, triazine, acid anhydrides or a variety of, and the additive amount of the acid agent accounts for described
0.1 ~ 10wt% of composition total weight.
12. a kind of printing imageable element, by substrate carrier and coated in the substrate carrier based on claim 1-11
Described in any item Uv and visible light sensing composition compositions.
13. printing imageable element according to claim 12, which is characterized in that the printing imageable element is plate
Printing block precursor or printing cylinder or print nest or printer belt.
14. printing imageable element according to claim 13, which is characterized in that the substrate carrier is coarse through electrolysis
The aluminium base of change and anodized.
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| CN201811318819.7A CN109634057A (en) | 2018-11-07 | 2018-11-07 | A kind of Uv and visible light sensing composition and obtained printing imageable element |
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| CN201811318819.7A CN109634057A (en) | 2018-11-07 | 2018-11-07 | A kind of Uv and visible light sensing composition and obtained printing imageable element |
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|---|---|---|---|---|
| JP2005031642A (en) * | 2003-06-19 | 2005-02-03 | Chisso Corp | Positive radiation-sensitive polymer composition, thin film using the composition and element using the thin film |
| CN101770169A (en) * | 2008-12-30 | 2010-07-07 | 乐凯集团第二胶片厂 | Positive lithograph plate photosensitive composition with high resolution and high sensitivity |
| CN104503204A (en) * | 2014-12-15 | 2015-04-08 | 山东本元功能材料有限公司 | Positive-image PS-version and CTcP lithographic plate printing plate material |
| CN108181786A (en) * | 2017-10-27 | 2018-06-19 | 浙江康尔达新材料股份有限公司 | A kind of IR-sensitive composition and its printing plate precursor as made from the composition |
-
2018
- 2018-11-07 CN CN201811318819.7A patent/CN109634057A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005031642A (en) * | 2003-06-19 | 2005-02-03 | Chisso Corp | Positive radiation-sensitive polymer composition, thin film using the composition and element using the thin film |
| CN101770169A (en) * | 2008-12-30 | 2010-07-07 | 乐凯集团第二胶片厂 | Positive lithograph plate photosensitive composition with high resolution and high sensitivity |
| CN104503204A (en) * | 2014-12-15 | 2015-04-08 | 山东本元功能材料有限公司 | Positive-image PS-version and CTcP lithographic plate printing plate material |
| CN108181786A (en) * | 2017-10-27 | 2018-06-19 | 浙江康尔达新材料股份有限公司 | A kind of IR-sensitive composition and its printing plate precursor as made from the composition |
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Application publication date: 20190416 |