WO1997033197A1 - Procede de preparation d'une planche d'impression photosensible, solution de developpement aqueuse associee, solution de rinçage aqueuse et revelateur destine a la planche d'impression photosensible - Google Patents

Procede de preparation d'une planche d'impression photosensible, solution de developpement aqueuse associee, solution de rinçage aqueuse et revelateur destine a la planche d'impression photosensible Download PDF

Info

Publication number
WO1997033197A1
WO1997033197A1 PCT/JP1997/000699 JP9700699W WO9733197A1 WO 1997033197 A1 WO1997033197 A1 WO 1997033197A1 JP 9700699 W JP9700699 W JP 9700699W WO 9733197 A1 WO9733197 A1 WO 9733197A1
Authority
WO
WIPO (PCT)
Prior art keywords
printing plate
photosensitive printing
developer
plate material
aqueous
Prior art date
Application number
PCT/JP1997/000699
Other languages
English (en)
Japanese (ja)
Inventor
Fusayoshi Sakurai
Haruo Ueno
Ichirou Konishi
Original Assignee
Nippon Zeon Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP8075296A external-priority patent/JPH09244225A/ja
Priority claimed from JP8325796A external-priority patent/JPH09244262A/ja
Priority claimed from JP9347896A external-priority patent/JPH09258458A/ja
Application filed by Nippon Zeon Co., Ltd. filed Critical Nippon Zeon Co., Ltd.
Publication of WO1997033197A1 publication Critical patent/WO1997033197A1/fr

Links

Classifications

    • 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
    • G03F7/26—Processing photosensitive materials; Apparatus therefor
    • G03F7/30—Imagewise removal using liquid means
    • G03F7/32—Liquid compositions therefor, e.g. developers

Definitions

  • the present invention relates to a method for producing a photosensitive printing plate, an aqueous developer suitable for the method, an aqueous rinsing solution, and a developing device for a photosensitive printing plate.
  • a photosensitive printing plate can be obtained by laminating a printing film on a photosensitive printing plate material, irradiating with actinic light, and then usually dissolving or removing the unexposed portion to form a relief. .
  • a developing solution composed of an aqueous solution in which a surfactant, an alkali metal salt, or the like is dissolved is used.
  • the following devices are known as devices for removing unexposed portions (hereinafter also referred to as developing devices).
  • the apparatus has a bath, a brush and a bathtub lid for storing the developer.
  • the brush is mounted so that it can be immersed in the developer stored in the bathtub, with the brush bristles facing upward and vibrating inside the bathtub.
  • the plate after pattern exposure can be mounted on the back of the bathtub lid. You can do it.
  • a plate is attached to the lid of the bathtub and the lid is closed. As a result, the plate material When the brush vibrates in contact with the bristles, the unexposed portion of the printing plate is removed or melted, and a relief is formed on the surface of the printing plate.
  • the resin or rubber removed or dissolved from the plate material flows out into the developer in the bathtub.
  • the present invention prevents the aggregation of the developing tank, has a high developing speed irrespective of the water quality, has a small variation in image reproducibility, satisfactorily removes the unexposed portions of the photosensitive printing plate material using an aqueous developing solution, and prepares a printing plate. It is a first object of the present invention to provide a method for producing a photosensitive printing plate capable of forming a good relief on the surface and an aqueous developer suitable for the method. In addition, the present invention can remove an unexposed portion of a photosensitive printing plate material using an aqueous developer to form a good relief on the surface of the printing plate, reduce ink repellency, and improve image reproducibility.
  • the second object is to provide a method for producing a photosensitive printing plate capable of high printing and an aqueous rinsing liquid suitable for the method.
  • the present invention prevents the rubber or resin (development tank) removed from the photosensitive printing plate material from adhering to the bristles of the brush, and the development of the photosensitive printing plate with little decrease in the removing performance.
  • the third purpose is to provide equipment.
  • the present inventors have found that an aqueous developer using water of water containing heavy metals as a solvent significantly reduces the developing speed, and that an aqueous solution of a chelating agent and a surfactant is used as a developer to develop a developer. It was found that the speed was increased and that the aggregation of the developing tank could be prevented.
  • the present inventors have found that, since the developer remains on the surface of the photosensitive printing plate, the ink is repelled even when the ink is placed thereon, and the photosensitive printing plate material after development is Has a fine vessel (resin or rubber removed by development) attached to it, so that the active vessel is irradiated with actinic light to cure the plate after development. Was found to be worse.
  • the present inventors have found that by rinsing the photosensitive printing plate material with an aqueous rinsing solution after the development, it is possible to prevent ink repelling and deterioration in image reproducibility. Further, the present inventors, by using a device provided with a means for supplying the developer so that the brush is provided downward without being immersed in the developer in the bathtub and penetrates from the back to the front of the brush, It has been found that it is possible to prevent the developing tank from adhering to the brush and improve the removal performance (developing speed).
  • the method for producing a photosensitive printing plate according to the first aspect of the present invention includes the steps of: irradiating the surface of the photosensitive printing plate material with actinic light through a mask pattern; Developing a photosensitive printing plate and removing unexposed portions, wherein an aqueous solution containing a chelating agent and a surfactant is used as the aqueous developing solution.
  • the method for producing a photosensitive printing plate according to the first aspect of the present invention it is preferable to further include a step of rinsing the developed photosensitive printing plate material with an aqueous rinsing liquid.
  • the developing speed when producing the photosensitive printing plate is increased. Become. Further, the adhesiveness of the developing tank and the photosensitive printing plate surface is reduced, so that the developing tank can be prevented from sticking to the surface of the printing plate, and the image reproducibility is improved.
  • a method for producing a photosensitive printing plate according to a second aspect of the present invention includes the steps of: irradiating the surface of the photosensitive printing plate material with active light through a mask pattern; It has a step of developing and removing unexposed portions, and a step of rinsing the developed photosensitive printing plate material with an aqueous rinsing liquid.
  • the aqueous developer is not particularly limited, but it is preferable to use an aqueous solution containing a surfactant (preferably containing a chelating agent).
  • the ink is well adapted to the surface of the printing plate, and Image reproducibility is improved. Also, the developing tank remains on the surface of the printing plate. Image reproducibility is also improved.
  • the printing film on which the mask pattern is formed is brought into close contact with the surface of the light-sensitive printing plate material, and is irradiated with actinic light from the printing film side. It is preferable to peel off the surface and develop the surface with an aqueous developer.
  • a step of irradiating the back surface with actinic light By irradiating the back surface with actinic light, the strength of the printing plate material is increased, and it is possible to effectively prevent the printing plate material from being deformed in the subsequent steps.
  • the material of the photosensitive printing plate material is not particularly limited, but a material in which an unexposed portion dissolves or swells with water (having water developability) is preferable.
  • a plate material include those composed of a composition containing an elastomer, a hydrophilic polymer, a photopolymerizable ethylenic monomer and a photopolymerization initiator.
  • a rinsing liquid containing a chelating agent as the aqueous rinsing liquid.
  • the manner of rinsing the rinsing liquid is not particularly limited, but it is preferable to spray a rinsing liquid onto the surface of the developed photosensitive printing plate material using a jet nozzle or the like. This is because the developing tank can be efficiently removed.
  • a contacting means is disposed on the surface of the photosensitive plate material, which is in contact with the photosensitive plate material from above, and the aqueous developing solution is supplied from the removing means. Is preferred.
  • the developer regenerated by the developer regenerating means After the used aqueous developer is regenerated by the developer regenerating means, It is preferable that the developer is returned to the wiping unit and the developer is recycled and used.
  • the aqueous developer for a photosensitive printing plate according to the present invention is characterized by comprising an aqueous solution containing a chelating agent and a surfactant.
  • the chelating agent is water-soluble. More preferably, the chelating agent is a polyaminocarboxylic acid.
  • the surfactant is an anionic or nonionic surfactant. More preferably, the c surfactant is a fatty acid alcohol amide.
  • the aqueous rinsing liquid for a photosensitive printing plate according to the present invention is preferably composed of an aqueous solution containing a chelating agent.
  • a chelating agent it is preferable to use polyamino carboxylic acids, oxy carboxylic acids or oxo carboxylic acids.
  • the developing device includes a wiping unit and a developing solution supply unit, wherein the wiping unit is in contact with an upper surface of the photosensitive printing plate material and rubs the upper surface of the photosensitive printing plate material.
  • the developing solution supply means is provided so as to be able to send out the developing solution via the removing means, and the developing solution is supplied between the photosensitive printing plate material and the removing means. It is configured such that a relief can be formed on the upper surface of the photosensitive printing plate material by the supply and removal means and the developer supply means.
  • the removing means is mounted downward, the removing vessel falls by gravity. Further, since the developer supply means is provided so as to penetrate from the back to the front of the removing means, the vessel flows by the flow of the developer. As a result, in the apparatus of the present invention, it is possible to suppress the removal tank from adhering to the removal means, and it is possible to effectively prevent the development speed from decreasing.
  • the developing device further includes a developer regenerating unit and a developer circulating unit, and the developer regenerating unit collects the developer supplied between the photosensitive printing plate material and the wiping unit.
  • the developer circulation means supplies the developer from which the suspended matter has been removed by the developer regeneration means to the developer supply means, so that the developer can be recycled and used.
  • the developer regenerating means and the developer circulating means the developer can be circulated and reused, and the photosensitive printing plate can be manufactured efficiently.
  • the removing means is attached with an inclination so that the developer supplied by the developer supplying means flows along the inclination. By mounting the stripping means at an angle, the stripping tank between the printing plate material and the stripping means is washed out along with the flow of the developer, and the stripping means is provided with the stripping tank. Adhesion can be prevented.
  • the removing means is a brush.
  • the apparatus according to the present invention preferably further comprises a rinsing means for supplying an aqueous rinsing liquid to the photosensitive printing plate material after the completion of the development to wash away the developing liquid and the cleaning tank.
  • the apparatus according to the present invention preferably further comprises a blowing means for draining the photosensitive printing plate material after rinsing by the rinsing means and for blowing off the bath.
  • the developer supply means preferably has a jet nozzle or a spray nozzle.
  • FIG. 1 is a diagram showing an embodiment of the photosensitive printing plate developing device of the present invention
  • FIG. 2 is a diagram showing another embodiment of the photosensitive printing plate developing device of the present invention.
  • the method for producing a photosensitive printing plate comprises: a step of bringing a photographic film into close contact with a photosensitive printing plate material and irradiating active light from the photographic film side; peeling the photographic film; and developing with an aqueous developer (2) removing unexposed portions by rinsing the developed photosensitive printing plate material with an aqueous rinsing liquid.
  • the photographic film is a light-transmitting material that displays a pattern to be relief on the printing plate. Normally, the exposed portion becomes a convex image portion and the unexposed portion becomes a concave image portion, and corresponding patterns are displayed on the photographic film correspondingly.
  • the base film and the cover film are tightly laminated with the printing plate material interposed therebetween in order to maintain the shape of the printing plate material, so when irradiating active light from the back surface of the printing plate material, Irradiate from the transparent base film side.
  • the base film causes scattering and absorption of light, but it does not form a pattern, so there is no problem. After the base film has been peeled off from the printing plate material, actinic light may be irradiated.
  • a printing film is attached in close contact with the surface of the printing plate material that has been exposed to the back surface, and exposure is performed by irradiating active light from the printing film side. If there is a gap when attaching the photographic film, the image becomes unclear and distortion occurs.
  • a cover film is generally laminated on the surface of the printing plate material, it is preferable to peel off the cover film before exposure from the printing film side. When light is emitted in a state where the cover film is laminated, the active light tends to be scattered and absorbed by the cover film, which tends to be an obstacle to obtaining a good pattern.
  • the method of irradiating the active light is not particularly limited. Usually, irradiation is performed using irradiation equipment such as a high-pressure mercury lamp, halogen lamp, or ultraviolet lamp.
  • irradiation equipment such as a high-pressure mercury lamp, halogen lamp, or ultraviolet lamp.
  • the active light a light having a wavelength of usually 320 to 400 nm is used.
  • the exposed portions of the printing plate material are cured according to the pattern of the printing film.
  • the photosensitive printing plate material applicable to the production method of the present invention is not particularly limited, but those which can remove unexposed portions with an aqueous developer are preferable.
  • the photosensitive printing plate material exhibiting water developability is usually a composition containing a hydrophilic polymer, a photopolymerizable ethylenic monomer and a photopolymerizable initiator, and preferably a composition further containing an elastomer. It consists of things.
  • a thermoplastic elastomer such as a styrene-butadiene block copolymer or a styrene-isoprene block copolymer is preferably used.
  • a hydrophilic polymer has a hydrophilic group in its molecular side chain. With hydrophilic groups It is by one OH, one COO-, One COOH, one NH 2, one S0 3 -, - S 0 3 H, -P0 (OH) 2, -PO (OH) -,> PO-, one CN etc.
  • Preferable examples include a phosphoric ester group such as 1 PO (OH) 2 and 1 PO (OH) 1 and a carboxylic acid group.
  • hydrophilic polymer makes it easier for the aqueous developer to dissolve or swell the printing plate material, and the shape of the unexposed portion of the printing plate material can be reduced by rubbing with a scraping means such as a brush. It easily collapses and can be removed.
  • the photopolymerizable ethylenic monomer is polymerized entangled or crosslinked between the molecular chains of the elastomer and the hydrophilic polymer by irradiation with actinic light to harden the printing plate material.
  • the shape of the exposed portion is less likely to collapse.
  • the photopolymerizable ethylenic monomer is a monomer that can be polymerized by radicals generated by a photopolymerization initiator described below. Specifically, styrene, o-methylstyrene, 1-methylstyrene, p-methylstyrene, p-tert-butylstyrene, 1,3-dimethylstyrene, chlorostyrene, vinylnaphthylene, vinylanthracene, divinylbenzene, trivinyl Aromatic vinyl monomers such as benzene;
  • Ethylenically unsaturated nitrile monomers such as acrylonitrile and methacrylonitrile Methyl acrylate, ethyl acrylate, brovir acrylate, n-amyl acrylate, isoamyl acrylate, hexyl acrylate, ethyl hexyl acrylate Octyl acrylate, glycidyl acrylate, methyl methacrylate, methyl methacrylate, brothyl methacrylate, n-amyl methacrylate, isoamyl methacrylate, hexyl methacrylate, hexyl methacrylate, octyl methacrylate, acryl Hydroxyethyl acrylate, Hydroxybutyl mouth acrylate, Hydroxyethyl methacrylate, Hydroxybutyl mouth methacrylate, Glycidyl methacrylate, Ethylene glycol diacrylate, Trimethylolpropan
  • Ethylenically unsaturated glycidyl ethers such as arylglycidyl ether; ethylenically unsaturated monocarboxylic acids such as acrylic acid and methacrylic acid; ethylenically unsaturated polycarboxylic acids such as maleic acid, fumaric acid, citraconic acid and itaconic acid; Ethylenically unsaturated polyvalent compounds such as monoethyl maleate and monomethyl itaconate Partially esterified rubonic acid;
  • the photopolymerization initiator generates radicals upon irradiation with actinic light, and specifically, diketyl, benzyl, etc., a hediketone; benzoin, viva-mouth, etc .; benzoin methyl ether, benzoin ethyl ether, Acyloin ethers such as benzoin isobrovir ether; polynuclear quinones such as anthraquinone and 1,4-naphthoquinone; and the like.
  • the unexposed portion of the printing plate material is not cured, it can be easily removed using an aqueous developer.
  • the aqueous developer applicable to the production method of the present invention is not particularly limited, but a non-organic solvent-based aqueous developer not containing an organic solvent such as alcohol or acetone is preferable.
  • Aqueous developers include aqueous surfactant solutions, alkali metal salts or alkaline earth An aqueous solution of a metal salt, an aqueous solution of a mineral acid or an organic acid, and the like can be given. Among them, a surfactant aqueous solution, particularly an aqueous solution containing a surfactant and a chelating agent is preferable.
  • the aqueous developer of the present invention comprises an aqueous solution containing a surfactant and a chelating agent.
  • Surfactants are substances that dissolve in water and have the effect of reducing the surface tension of water. Specifically, sodium laurate, sodium myristate, sodium palmitate, sodium stearate, sodium oleate, potassium laurate, potassium myristate, potassium olemitinate, potassium stearate, potassium oleate, N-Acyl-N-methylglycine salt, 1-acyl-1- ⁇ -methyl-5 / 5-alanine salt, N-acylglutamate, polyoxyethylene alkyl ether carboxylate, acylated peptide, etc.
  • a chaotic surfactant such as an aliphatic amine salt, an aliphatic quaternary ammonium salt, a benzalkonium salt, a benzenium chloride, a viridinium salt, or an imidazolinium salt;
  • Amphoteric surfactants such as carboxybetaine, aminocarbonate, imidazolinidum betaine, lecithin;
  • anionic surfactants or nonionic surfactants are preferably used.
  • the amount of surfactant in aqueous solution concentration is usually from 0.01 to 5% by weight, preferably from 0.1 to 2% by weight.
  • a chelating agent is a compound having a polydentate ligand that forms a chelate compound by binding to a metal ion. It has a functional group (amine, carbonyl group, etc.) in its molecular structure.
  • polyaminocarboxylic acids such as ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, nitrosotriacetic acid, hydroxyethyliminodiacetic acid, hydroxyethylenediamine trisulfonate, triethylenetriaminehexaacetic acid, and the like, Metal salts or ammonium salts; citric acid, malic acid, tartaric acid, glycolic acid, salicylic acid, mandelic acid, lactic acid, 2-hydroxybutyric acid, 2-hydroxy-12-methylpropanoic acid, leucic acid, dietosolic acid, hydracrylic acid , Ricinoleic acid, glyceric acid, tartronic acid, acetoxic Hydroxycarboxylic acids such as citric
  • the amount of the chelating agent is usually from 0.01 to 10% by weight, preferably from 0.05 to 5% by weight, based on the concentration of the aqueous solution, and is usually 2 to 100 parts by weight of the surfactant. 2200 parts by weight.
  • aqueous developer of the present invention in addition to the above-mentioned surfactant and chelating agent, basic compounds such as hydroxides and carbonates of alkali metals; acidic compounds such as organic acids which do not form mineral acids and chelate compounds Can be blended.
  • the photosensitive printing plate material is preferably irradiated with actinic light again in order to cure the whole.
  • the process of the present invention employs a step of rinsing the photosensitive printing plate material with an aqueous rinsing liquid after development.
  • the method of rinsing with the aqueous rinsing liquid is not particularly limited, but it is preferable to spray the aqueous rinsing liquid onto the photosensitive printing plate material using a jet nozzle or the like to rinse the plate. This is because the developer can be efficiently removed.
  • aqueous rinsing liquid examples include water such as drinking water, industrial water, and groundwater, and preferably an aqueous solution of a chelating agent obtained by dissolving a chelating agent in water.
  • the tackiness of the developing tank is reduced and the sticking to the plate surface can be effectively prevented.
  • the chelating agent is the same as the chelating agent contained in the suitable aqueous developer. Is used. Among various chelating agents, water-soluble polyamino carboxylic acids, oxy carboxylic acids, and oxo carboxylic acids are preferred.
  • the temperature of the aqueous rinsing liquid is not particularly limited, and is usually 5 to 80 ° C.
  • a step of blowing air onto the upper surface of the photosensitive printing plate material using a blower or the like to drain the surface of the printing plate material and further blow off the developing tank. If bubbles or the like remain on the plate surface of the photosensitive printing plate material, the light may be scattered at the time of re-irradiation of the actinic light, causing uneven exposure and reducing image reproducibility.
  • a means of draining by heating can be adopted, a means of blowing air is less likely to cause dimensional errors than a means of draining by heating. This is because the printing plate material expands due to heating in the means for draining by heating.
  • the printing plate material has been cured to some extent by the backside exposure during the above process and the exposure with the photographic film in close contact, but there may be some uncured portions.
  • the relief pattern is missing or the image is distorted. Therefore, it is preferable to irradiate the printing plate material again with actinic light in order to completely cure the hardened portion.
  • the developing device for a photosensitive printing plate of the present invention has a removing means and a developing solution supply means.
  • the stripping means is arranged above the photosensitive printing plate material, and is provided so as to be able to rub the upper surface of the photosensitive printing plate material.
  • the wiping means usually has a wiping member and a disk-shaped support member for fixing the wiping member to the lower surface, and the wiping member is in contact with the upper surface of the photosensitive printing plate material. Unexposed parts can be removed by rubbing.
  • the stripping member examples include a brush on which bristles such as wool and cotton cloth are planted, and preferably a brush with bristles.
  • Examples of the material of the hair include polyamide such as nylon, polyester such as polyethylene terephthalate and polybutylene terephthalate; polyethylene, polypropylene, polystyrene, and acrylic resin. Hair length is usually 5 to 50 mm.
  • the arrangement of the hair implantation is not particularly limited as long as the stripping member comes into uniform contact with the photosensitive printing plate material.
  • the support member can select an appropriate board area according to the area of the photosensitive printing plate material (for example, AO size). It is preferable that the support member is made of a material that suppresses distortion and deflection even if it has a large board area. Examples include resins such as epoxy resins, urea resins, and ABS resins, and metals such as aluminum and stainless steel.
  • the wiping chamber Since the wiping means is provided in contact with the upper surface of the photosensitive printing plate material, the wiping chamber is prevented from dropping due to the flow of the developer and the gravity to adhere to the wiping member. It is preferable that the removing means is attached with an inclination. By attaching the stripping means with a slope, the developer flows along the slope. For this reason, the cleaning chamber between the printing plate material and the cleaning means is washed out together with the flow of the developing solution, so that the cleaning chamber can be prevented from adhering to the cleaning means.
  • the developer supply means is provided so that the developer can be sent out via the stripping means, and supplies the developer between the photosensitive printing plate material and the contacting means.
  • the supply amount of the developer depends on the area of the printing plate material, but is usually 5 to 100 liters per minute.
  • the developing solution supply means is provided with a portion for storing the developing solution on the back surface of the support member of the removing means (the surface to which the removing member is not fixed), and a hole is provided in the supporting member so that the developing solution can pass through the hole. It may be one that simply falls. More preferably, a developer supply means such as a jet nozzle or a spray nozzle capable of supplying a developer at a low pressure or at a high speed is preferable. The supply pressure of the developer or the like facilitates the contacting of the unexposed portion of the photosensitive printing plate material, and can prevent the removal tank from adhering to the removal member.
  • the number of the developer supply means may be one, but usually four to twenty places are provided so as to be evenly supplied to the surface of the printing plate material via the separating means.
  • the amount of the developer supplied from one supply means is usually from 0.25 to 25 liters per minute, preferably from 1 to 10 liters per minute. It should be noted that the number of supply means may be increased or decreased by switching the valve depending on the area of the printing plate material. In that case, the developer It is possible to prevent waste.
  • the removal tank can be washed away before the removal tank adheres to the removal means, The performance of the removing means does not decrease.
  • the photosensitive printing plate material Since the photosensitive printing plate material is initially dry, if the developer is rubbed with a wiping means before it reaches the entire surface of the photosensitive printing plate material, hair scratches occur on the surface of the photosensitive printing plate material. Sometimes. In order to prevent this, the developer is supplied before the photosensitive printing plate material is introduced under the removing means, and the developing solution supply auxiliary means is provided so that the developing solution can be spread over the entire surface of the photosensitive printing plate material. Is preferably provided.
  • the wiping means is adapted to perform translation or rotation or a combination thereof to rub the upper surface of the photosensitive printing plate material, so that the hairs come into contact with the photosensitive printing plate material evenly. I have.
  • the developing device for a photosensitive printing plate of the present invention is preferably further provided with a developer regenerating means and a developer circulating means.
  • the developing solution regenerating means can collect the developing solution supplied between the photosensitive printing plate material and the contacting means, and can remove suspended matters in the developing solution.
  • filtration devices such as Noh, Yukichiru, mesh filters, ultrafiltration devices; sedimentation separation devices such as sand corn, spitzkasten, surface flow classifiers, whole flow classifiers; Hydraulic separators such as classifiers; mechanical separators such as rake classifiers, drag classifiers, spiral classifiers, and centrifugal separators;
  • the developer regenerating means may be a means for continuously regenerating the collected developer and sequentially feeding the collected developer to the developer circulating means described later, or temporarily storing the collected developer and regenerating it in an offline manner.
  • the liquid may be sent to a developer circulating means described later.
  • inorganic coagulants such as polyaluminum chloride, aluminum sulfate, magnesium chloride, aluminum alum, and ferric chloride, and cations are used to efficiently separate suspended matters.
  • Starch water-soluble aniline resin, polyethyleneimine, chitosan, sodium alginate, sodium poly (meth) acrylate, polyacrylamide, polyoxin ethylene, etc. It is preferable to add an organic flocculant.
  • the developer circulating means sends the developer from which the suspended matter has been removed by the developer regenerating means to the developer supplying means.
  • a pump is usually used as a circulation means.
  • the developer used in the developing device of the present invention is not particularly limited, but preferably includes an aqueous developer containing the above-mentioned surfactant and chelating agent.
  • the concentration of the developer regenerated by the developer regenerating means is usually lower than that of the developer supplied by the developer supplying means.
  • the aqueous rinsing solution is supplied to the developing device of the present invention to rinse the developing solution and the contacting tank, or to dry the upper surface of the photosensitive printing plate material to remove it. It is preferable to provide a blowing means for blowing off the bath.
  • the temperature of the hinder was lowered to 120 ° C, and 10 parts by weight of 1,6-hexanediol diacrylate, 10 parts by weight of 1,6-hexanediol dimethacrylate, benzoin methyl ether 3 parts by weight and 0.02 parts by weight of methylhydroquinone were added and kneaded to obtain a photosensitive composition.
  • This photosensitive composition was placed in a frame mold with a spacer thickness of 3 mm and open at the top and bottom, and a 0.1 mm thick polyester film was coated on the top and bottom of the opening of the frame mold, followed by breath processing. 110 to 130 using a machine. C, after heating and pressurizing with 150 kgf, cool down, A photosensitive printing plate material having a total thickness of 3 mm was obtained.
  • a photosensitive printing plate material was obtained in the same manner as in Reference Example 1, except that a styrene-butadiene copolymer having a propyloxyl group was used instead of the styrene butadiene copolymer having a phosphoric ester group used in Reference Example 1.
  • the removal rate (development rate) of the unexposed portion was 0.03 mm / min. Thereafter, it was dried at 70 ° C. for 20 minutes, and the surface from which the unexposed portions were removed was re-exposed for 10 minutes using the above-mentioned ultraviolet exposure machine to form a relief image.
  • the photosensitive printing plate on which the relief image was formed was mounted on a drum of a printing press and printing was performed. Many development residues were fixed on the printing plate surface. In the initial stage of printing, the ink did not adapt to the photosensitive printing plate, and the reproducibility of the image was reduced due to ink removal or development residue. As the number of prints increased, the photosensitive printing plate became familiar with the ink, and the image residue gradually removed, improving image reproducibility. However, complete image reproducibility was not obtained.
  • the developing speed was 0.14 mm / min, and the speed improvement was confirmed as compared with Comparative Example 1.
  • tap water is sprayed on the photosensitive printing plate material using a jet nozzle, and then air is blown on using a blower to dry the surface. Re-exposure was performed for 0 minutes to form a relief image to obtain a photosensitive printing plate.
  • the photosensitive printing plate on which the relief image was formed was attached to the drum of the printing press, and the development tank on which printing was performed became less sticky, and the disturbance of the convex image portion was reduced.
  • Example 2 In place of the 2% aqueous polyoxyshethylennonylphenyl ether and 0.1% ethylenediaminetetraacetic acid tetrasodium used in Example 1, a fatty acid alkanolamide 2% and nitrosotriacetic acid disodium 0% A photosensitive printing plate was obtained in the same manner as in Example 1 except that a 2% aqueous solution (using tap water as a solvent) was used. The developing speed was 0.17 mm / min, and the speed was improved as compared with Comparative Example 1. In addition, there was no sticking of the developing tank, and there was no decrease in image reproducibility.
  • Example 2 Instead of 2% of the polyoxetylene nonylphenyl ether and 0.1% of ethylenediaminetetraacetic acid tetrasodium used in Example 1, 1.5% of fatty acid alkanolamide and 0.2% of tartaric acid were used instead of the aqueous solution.
  • a photosensitive printing plate was obtained in the same manner as in Example 1 except that a% aqueous solution (using tap water as a solvent) was used. The developing speed was 0.14 mm / min, and the speed was improved compared to Comparative Example 1. In addition, there was no sticking of the developing tank, and there was no decrease in image reproducibility due to the developing tank.
  • a photosensitive printing plate was obtained in the same manner as in Example 1, except that the photosensitive printing plate material obtained in Reference Example 2 was used.
  • the development speed was 0.09 mm, and an improvement in speed was confirmed.
  • Example 2 Instead of the 2% aqueous solution of polyoxyethylene nonylphenol and 0.1% tetrasodium ethylenediaminetetraacetate used in Example 1, a 1.5% aqueous solution of sodium octylsulfosuccinate and a 0.2% aqueous solution of tartaric acid were used.
  • a photosensitive printing plate was obtained in the same manner as in Example 1 except that tap water was used as a solvent. Development speed is 0.12mm / Min. In addition, there was no sticking of the developing tank, and there was no decrease in image reproducibility due to the developing tank.
  • ion-exchanged water as an aqueous rinse liquid is sprayed on the photosensitive printing plate material using a jet nozzle, and then air is blown on using a blower to dry the surface. Re-exposure was performed for 10 minutes using an ultraviolet exposure machine to form a relief image, and a printing plate was obtained.
  • the photosensitive printing plate on which the relief image was formed was mounted on a drum of a printing press and printing was performed. Although the developing tank was slightly adhered, the disturbance of the convex image portion due to ink repelling and the like in the initial stage of printing was reduced as compared with Comparative Example 1.
  • a photosensitive printing plate was obtained in the same manner as in Example 6, except that an aqueous solution of tetrasodium ethylenediaminetetraacetate was used as the aqueous rinsing liquid. There was no sticking of the developing tank at all, and even in the early stage of printing, disturbance of the convex image portion due to ink repelling and deterioration of image reproducibility due to the developing tank were eliminated.
  • a photosensitive printing plate was obtained in the same manner as in Example 6, except that an aqueous solution of citrate was used as the aqueous rinsing solution. There was no sticking of the developing tank, and even in the early stage of printing, the disturbance of the convex image portion due to ink repelling and the decrease in image reproducibility due to the developing tank were eliminated.
  • FIG. 1 is a view showing a photosensitive printing plate developing apparatus according to a ninth embodiment of the present invention.
  • This device is provided with a brush 1 as a contacting means, a spray nozzle 2 and a jet nozzle 9 as a developer supply means.
  • a brush made of nylon is attached to the substrate (support member) of the brush 1 with a slant facing downward.
  • the dimensions of the substrate of the brush 1 are 940 mm in length and 72 O mm in width, and the length of the brush implanted on the substrate is 20 mm. The brush's downward position prevents the brush from sticking to the brush.
  • Substrate of the brush is connected to a device for vibrating the brush (not shown), under the c brush brush by operating the vibration device moves to rub the photosensitive printing plate material 3, the brush
  • a cradle for a photosensitive printing plate material is provided. Since the cradle and the brush are provided with an inclination, the supplied developer flows along the inclination, and the washing tank is also washed away with the flow, thereby preventing the adhesion of the tank to the brush.
  • the receiving stand is provided with a means for sticking, adhering or adsorbing to the lower surface of the printing plate material in order to prevent the photosensitive printing plate material from moving due to the movement of the removing means.
  • a double-sided adhesive tape is attached to the receiving table, and the photosensitive printing plate material 3 is fixed.
  • the spray nozzle 2 is attached so as to penetrate from the back of the substrate of the brush 1 to the front so that a developer can be supplied between the photosensitive printing plate material 3 and the brush 1.
  • the brush supplied from the brush 1 is washed away by the developer supplied from the spray nozzle 2, thereby preventing the brush 1 from adhering to the brush 1.
  • a jet nozzle 9 is attached as a developer supply auxiliary means, and the photosensitive printing plate is heated by the developing solution ejected from the jet nozzle before the photosensitive printing plate is inserted under the brush. The surface is wetted by the developer. Further, in the present embodiment, since the brush is inclined, the developer is ejected from the jet nozzle 9 to assist in flushing the container along the inclination.
  • the developing solution is supplied to the jet nozzle 9 and the spray nozzle 2 by a pump from the developing solution storage tank at 40 liter / min.
  • the photosensitive printing plate material 3 is inserted between the brush 1 and the receiving table, and the brush is in contact with the upper surface of the photosensitive printing plate material. As the brush moves, the printing plate material is rubbed and unexposed portions are removed.
  • the developer containing suspended matter such as an extraction tank is collected by the hopper 14, passed through the backfill 4, returned to the developer storage tank 5, and then returned to the jet nozzle by the pump 6. It is supplied to 9 and spray nozzle 2 and reused.
  • the concentration of the regenerated developer is measured, the amount of the developer to be replenished is calculated from the difference between the measured value and the set value, and the concentration of the developer is adjusted to an appropriate value. For replenishing the developing solution (not shown).
  • a jet nozzle 8 for supplying an aqueous rinsing liquid for rinsing is provided beside the jet nozzle 9 for supplying the developer, and the cleaning tank remaining on the upper surface of the photosensitive printing plate material after development is washed away.
  • An air blower (not shown) is provided next to the rinsing jet nozzle 8 so that the upper surface of the photosensitive printing plate material can be drained and the wiper can be blown off.
  • FIG. 2 is a view showing a developing device for a photosensitive printing plate of Example 10 according to the present invention.
  • the developing device for a photosensitive printing plate according to this embodiment has two brushes la and la. These brushes l a and 1 a are provided along the conveying direction A of the photosensitive printing plate material 3.
  • the photosensitive printing plate material 3 is transported along the transport direction A by transport rollers 12 as transporting means so that the printing plate material 3 can be continuously developed.
  • the transport speed is not particularly limited, but is, for example, 50 to 300 awakes / minute.
  • the photosensitive printing plate material 3 may be transported alone, but is usually placed on a transport base (not shown) and transported.
  • a transport base for example, an aluminum substrate or a phenol resin substrate is used.
  • Each brush la is provided with a spray nozzle 2a as in the ninth embodiment.
  • the nozzle 2a is attached so as to penetrate from the upper surface to the lower surface of the brush substrate, so that a developer can be supplied between the photosensitive printing plate material 3 and the brush substrate.
  • the brush supplied from the brush 1a is washed away by the developer supplied from the spray nozzle 2a to prevent the brush from adhering.
  • the developing device is provided with a jet nozzle 9a as a developing solution supply auxiliary means on the upstream side in the transport direction A of the photosensitive printing plate material 3, and is provided under the brush 1a.
  • a jet nozzle 9a as a developing solution supply auxiliary means on the upstream side in the transport direction A of the photosensitive printing plate material 3, and is provided under the brush 1a.
  • the photosensitive plate material 3 is wetted by the developing solution ejected from the jet nozzle 9 a.
  • a developer containing suspended matter such as a suction tank is collected by a hopper 14a, passed through a back filter 4a, returned to a developer storage tank 5a, and pumped again. At 6a, it is supplied to gate nozzle 9a and spray nozzle 2a and reused.
  • the concentration of the regenerated developer is measured, the amount of the developer to be replenished is calculated from the difference between the measured value and the set value, and the concentration of the developer is adjusted to an appropriate value. (Not shown).
  • a jet nozzle 8a for supplying an aqueous rinsing liquid for rinsing is provided downstream along the conveying direction A of the photosensitive printing plate material, and remains on the upper surface of the photosensitive printing plate 3 after development is completed. Rinse the removal tank.
  • a blower (not shown) is provided next to the rinsing jet nozzle 8a, and is capable of draining the upper surface of the photosensitive plate material 3 and blowing off the wiping tank.
  • the developing solution is supplied from the nozzle 2a, and the surface of the photosensitive printing plate 3 is rubbed by the brush la and the photosensitive printing plate 3 moving relative to each other and sliding.
  • the unexposed pattern portions exposed in the previous step are removed by removal.
  • the photosensitive plate material 3 becomes a printing plate.
  • the brush of the brush 1a is attached downward, and the spray nozzle 2a is provided to penetrate from the back of the brush 1a to the front. Therefore, it is possible to effectively prevent the removal tank from adhering to the brush.

Abstract

Un procédé de préparation d'une planche d'impression photosensible consiste à irradier la surface d'une planche d'impression photosensible avec un rayonnement activateur à travers un motif de masquage, à développer la surface de la planche d'impression photosensible avec une solution de développement aqueuse et à retirer les parties non exposées. On utilise comme solution de développement aqueuse une solution aqueuse contenant un agent chélatant et un tensioactif. L'utilisation d'une telle solution permet d'augmenter la vitesse de développement au cours de la préparation de la planche d'impression photosensible. Cela permet également d'éviter que les dépôts collants du développement ne collent à la surface de la planche d'impression et la reproductibilité de l'image s'en trouve accrue. Il est souhaitable que le procédé inclut également une étape consistant à rincer la planche d'impression photosensible développée avec une solution de rinçage aqueuse. Le rinçage après le développement permet d'éviter que de la solution de développement reste à la surface de la planche d'impression, améliore la mouillabilité à l'encre de la surface de la planche d'impression de même que la reproductibilité de l'image au moment de l'impression. Etant donné qu'il se forme peu de dépôts à la surface de la planche d'impression, la reproductibilité de l'image est accrue. En outre il est préférable que le procédé de préparation prévoit l'agencement d'un organe de raclage conçu pour entrer en contact avec la surface de la planche d'impression par le dessus au moment du développement avec une solution aqueuse de développement, ledit organe de raclage servant également à l'alimentation en solution aqueuse de développement.
PCT/JP1997/000699 1996-03-08 1997-03-06 Procede de preparation d'une planche d'impression photosensible, solution de developpement aqueuse associee, solution de rinçage aqueuse et revelateur destine a la planche d'impression photosensible WO1997033197A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP8075296A JPH09244225A (ja) 1996-03-08 1996-03-08 感光性印刷版の製法
JP8/80752 1996-03-08
JP8/83257 1996-03-12
JP8325796A JPH09244262A (ja) 1996-03-12 1996-03-12 感光性印刷版用水性現像液
JP8/93478 1996-03-22
JP9347896A JPH09258458A (ja) 1996-03-22 1996-03-22 感光性印刷版用現像装置

Publications (1)

Publication Number Publication Date
WO1997033197A1 true WO1997033197A1 (fr) 1997-09-12

Family

ID=27303387

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1997/000699 WO1997033197A1 (fr) 1996-03-08 1997-03-06 Procede de preparation d'une planche d'impression photosensible, solution de developpement aqueuse associee, solution de rinçage aqueuse et revelateur destine a la planche d'impression photosensible

Country Status (1)

Country Link
WO (1) WO1997033197A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5543526A (en) * 1978-09-22 1980-03-27 Toray Ind Inc Continuous washing-out device for photosensitive resin plate
JPS55124145A (en) * 1979-03-17 1980-09-25 San Insatsu Kikai Kk Washing-out liquor circulating method and device in resin letterpress plate making machine
JPS5752053A (en) * 1980-09-12 1982-03-27 Asahi Chem Ind Co Ltd Manufacture of photosensitive resin plate
JPS5955438A (ja) * 1982-09-24 1984-03-30 Konishiroku Photo Ind Co Ltd 製版方法
JPS6088945A (ja) * 1983-10-20 1985-05-18 Toyobo Co Ltd 画像複製材料用水性処理液
JPS6323161A (ja) * 1987-04-17 1988-01-30 Toray Ind Inc 感光性樹脂版用連続洗い出し装置
JPH01159654A (ja) * 1987-12-16 1989-06-22 Konica Corp 濃縮現像液の濃縮度、現像性能等を高め得る感光性平版印刷版の現像処理方法と現像液包装物
JPH04287046A (ja) * 1991-03-15 1992-10-12 Konica Corp 感光性平版印刷版の処理方法
JPH04338978A (ja) * 1991-02-08 1992-11-26 Konica Corp 平版印刷版材の処理方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5543526A (en) * 1978-09-22 1980-03-27 Toray Ind Inc Continuous washing-out device for photosensitive resin plate
JPS55124145A (en) * 1979-03-17 1980-09-25 San Insatsu Kikai Kk Washing-out liquor circulating method and device in resin letterpress plate making machine
JPS5752053A (en) * 1980-09-12 1982-03-27 Asahi Chem Ind Co Ltd Manufacture of photosensitive resin plate
JPS5955438A (ja) * 1982-09-24 1984-03-30 Konishiroku Photo Ind Co Ltd 製版方法
JPS6088945A (ja) * 1983-10-20 1985-05-18 Toyobo Co Ltd 画像複製材料用水性処理液
JPS6323161A (ja) * 1987-04-17 1988-01-30 Toray Ind Inc 感光性樹脂版用連続洗い出し装置
JPH01159654A (ja) * 1987-12-16 1989-06-22 Konica Corp 濃縮現像液の濃縮度、現像性能等を高め得る感光性平版印刷版の現像処理方法と現像液包装物
JPH04338978A (ja) * 1991-02-08 1992-11-26 Konica Corp 平版印刷版材の処理方法
JPH04287046A (ja) * 1991-03-15 1992-10-12 Konica Corp 感光性平版印刷版の処理方法

Similar Documents

Publication Publication Date Title
JP3933576B2 (ja) 感光性樹脂凸版の現像方法及び現像装置
EP1993850B1 (fr) Procedes et moyens se rapportant aux plaques d'impression photopolymeres
JP7269245B2 (ja) 低減された流量のフレキソ印刷処理システム
JPH09258458A (ja) 感光性印刷版用現像装置
WO1997033197A1 (fr) Procede de preparation d'une planche d'impression photosensible, solution de developpement aqueuse associee, solution de rinçage aqueuse et revelateur destine a la planche d'impression photosensible
WO2018061958A1 (fr) Procédé de développement et dispositif de développement de plaque d'impression
JPH09244262A (ja) 感光性印刷版用水性現像液
JP4485258B2 (ja) 印刷版製造装置、及び印刷版の製造方法
JPH10123722A (ja) 感光性印刷原版用現像装置
JPH0418563A (ja) 感光性樹脂版の現像方法および現像装置
JPH10123721A (ja) 感光性印刷原版の現像方法および装置
JP4437493B2 (ja) 感光性樹脂凸版の現像方法及び現像装置
JPH0786261A (ja) フォトレジストの剥離法
JPH04501774A (ja) 印刷版を製造するための方法及び装置
JP4097463B2 (ja) 感光性樹脂凸版の現像方法、及び現像装置
JPH0428295B2 (fr)
JP2534102B2 (ja) 感光性平版印刷版現像処理装置
JPH07333861A (ja) 感光性樹脂版の洗い出し液の処理方法および処理装置
JPH09244225A (ja) 感光性印刷版の製法
JPS6127741B2 (fr)
JPH07333860A (ja) 感光性樹脂版の洗い出し液の処理方法および処理装置
JPS5844441A (ja) スクリ−ン印刷版の製造法
WO2019188899A1 (fr) Procédé de développement et dispositif de développement de plaque d'impression
JP3561859B2 (ja) 感光性記録材料の処理方法
JPS6348049B2 (fr)

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase