JPS6028656A - Process for treating laminated body for forming picture image - Google Patents

Abstract

PURPOSE:To improve adhesion of photosensitive layer to silicone rubber layer by reating a laminated layer comprising a quinonediazide photosensitive layer and silicone rubber layer with base after exposing through picuture image. CONSTITUTION:A laminated body for forming a picture image comprising a quinonediazide photosensitive layer and a silicone rubber layer on a substrate in this order is exposed through picture image and then treated with base. By performing development after base treatment or simultaneously with base treatment, a lithographic printing plate requiring no dampening water is obtd. Useful org. bases are ammonia, methylamine, ethylamine, dimethylamine, aniline, toluidine, alpha- or beta-naphthylamine, etc., and useful inorg. bases are NaOH, KOH, LiOH, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a carcass processing method for image forming. This relates to a processing method.

<Prior Art> Various types of image forming laminates comprising a photosensitive layer and a silicone rubber layer are known.

In particular, several proposals have been made in the past for a lithographic printing plate that does not require dampening water and is used as an image-forming laminate comprising a photosensitive layer backed by a support and a silicone rubber layer.

For example, USP 3677178 as a positive printing plate.
To do this, a lithographic printing plate precursor comprising a silicone rubber layer on a photocurable diazo photosensitive layer lined with an aluminum plate is exposed through a positive film, and the unexposed areas of the soluble diazo photosensitive layer and the silicone rubber layer are developed. It has been proposed that the aluminum plate be completely exposed and used as an image area by washing it out using a liquid.

According to USP 3894873, when a lithographic printing plate precursor with a silicone rubber layer on the second side of the photoadhesive layer backed by a support is exposed to light through a Bon film, the photoadhesive layer in the exposed area polymerizes, and the silicone rubber layer on the photoadhesive layer on it polymerizes. The rubber layer is firmly adhered, but the photoadhesive layer in the unexposed area is attached to the second silicone rubber layer.

Since the original weak adhesion remains, only the silicone rubber layer is easily removed when treated with a developer, exposing the lipophilic photoadhesive layer underneath, but the silicone rubber layer in the exposed area is 1 remains attached to the photoadhesive layer below. As a printing plate, the unexposed surface of the photoadhesive layer is the ink receiving area (0 mountain image area)
The silicone rubber layer acts as an ink repellent area (non-image area).
It is proposed that

Furthermore, as a negative printing plate, USP 3511178 describes a lithographic printing plate precursor in which a silicone rubber layer is provided on a photo-solubilized diazo-sensitive nine layer backed by an aluminum plate through an adhesive layer, and then exposed to light through a negative film. At the same time, the photosensitive layer was dissolved and removed using a developer, and at the same time, the silicone rubber layer on the soil was also removed.

It has been proposed to expose the aluminum plate serving as the support and use it as an image area.

′? It's British special i'l' G E 2064803
A and British Patent G] 3 2034911 discloses that a lithographic printing plate precursor in which a silicone rubber layer is provided on a photodegradable photosensitive layer made of quinone diand lined with a support is exposed to light through a resin film, and the silicone rubber layer in the exposed area is exposed. .

It has been proposed that, in some cases, the photosensitive layer 11 may also be removed using a developer to expose the photosensitive layer and, in some cases, the support to form an image area.

In the processing method of a two-layer image-forming laminate, that is, in the image-forming process in which both image-forming laminates are used as printing plates, the bonding of the silicone rubber layer and the photosensitive layer is an important point. It is not just a matter of being strong, but it is important to create a large difference between the adhesive strength between the photosensitive layer and the silicone rubber layer in the exposed area and the adhesive strength between the photosensitive layer and the silicone rubber layer in the unexposed area. That's true.

Similarly, the swelling and solubility of the photosensitive layer are also important points for these image-forming laminates.

It is not just a matter of good solubility and swelling properties, but rather how to create a large difference in the swelling properties and solubility of the exposed photosensitive layer and the unexposed photosensitive layer in the developing solution. is also important.

In this respect, the method of the gods is 47. ! .

It has been proposed to make the photosensitive layer insoluble in the developer, for example by photo-crosslinking of diazo groups (USP 677178).
, Utilizing a photopolymerizable photoadhesive layer to strengthen the 4χ bond between the photoadhesive layer in the exposed area and the silicone rubber layer (USP
U.S. Pat.
8) The guinone diazide photosensitive layer is solubilized in the developer using L (British patent OB 2034911).
The adhesive force between the silicone rubber layer and the photosensitive layer is reduced by exposure to light, and the silicone rubber layer is peeled off by a developer.
/4) Rarel.

Including these, the laminates on which images can be formed have been proposed, such as those in which the adhesion between the silicone rubber layer and the photosensitive layer is strengthened by exposure to light, or conversely weakened, and the photosensitive layer is removed using a developing solution by cross-exposure. Direct changes (in terms of adhesive strength and solvent resistance) are caused by light, making it insoluble in M, or conversely, making it Mable. In such conventional image forming methods, the difference in adhesive strength between the unexposed area and the exposed area/the silicone rubber layer and the photosensitive layer, and the difference in the swelling property and dissolution property of the photosensitive layer between the unexposed area and the exposed area are sufficiently suppressed. not big.

Therefore, due to slight changes in the current F&I conditions, the portion that should remain on the plate surface (in a silicone upper layer that does not require dampening water, the silicone rubber layer that should form the non-image area)
may be completely or partially removed (resulting in peeling or blurring of non-image areas), or conversely, areas that should be removed from the plate surface (in the silicone upper layer of a lithographic printing plate that does not require dampening water, the photosensitive layer that becomes the image area) This is unsatisfactory, as the overlying silicone rubber layer often remains on the entire surface or partially (causing development to become impossible or poor development).

In this way, flaking and blistering in non-image areas, failure to develop, and development defects are close to each other, and the latitude at which a complete image is formed is narrow (development latitude). .

” The two layers may peel off or developability may become impossible, making it impossible to form an image.

Furthermore, the temperature dependence and humidity dependence during development are significantly 9.
For example, within the range of practical temperature and humidity, during snow melting or high humidity, scratches may occur in the non-image areas, fC, low 61.1
1, or inability to develop at low temperature.

I cut it. In addition to the above, there is a strong dependence on development time (length or 1 hour of immersion in the developer) 1 For example, the printing plate surface is rubbed with a developing brush for a long time 9, or the printing plate is immersed in the developer for a long time When soaked in water.

The adhesion between the photosensitive layer and the silicone rubber layer, which should originally adhere strongly to form a printing plate, is disrupted by the developer, and a portion of the laminate is removed, or the photosensitive layer that should remain swells and dissolves due to the developer. Since the particles are removed during development, there are differences in image reproducibility depending on the length of development time.

Furthermore, the scratch strength during development is highly dependent on the load and the number of scrapes, and its range is narrow. For example, if you rub it hard (with a large load and too many times), the adhesive will be destroyed and the non-image area will peel off.

On the other hand, if you rub it weakly, the image reproducibility will be poor and it will be difficult to reproduce it sufficiently with minute halftone dot 1 (the latitude of image reproducibility will be narrow).
By using quinonediaside as a photosensitive substance. Another major drawback is plate cleaning due to the fact that the photosensitivity is retained (not fixed) in the developed printing plate. This includes various problems such as the risk of damage to the printing plate during printing.

<Object of the invention> In this sense, a lithographic printing plate precursor that does not require dampening water and is used as an image-forming laminate consisting of a silicone rubber layer and a photosensitive layer in a conventional image-forming laminate and an image-forming method using the same. One of the biggest problems to be solved is that the latitude is very narrow, including image reproducibility, surface properties, solvent properties, developability, etc. This is mainly due to the small difference between the exposed and unexposed areas due to the III developer properties of the photosensitive layer, and various tests have been carried out to solve this problem.
1 has been done, but 1 is not enough.

The inventors of the present invention have made extensive studies to solve all of the above-mentioned problems, and as a result, have arrived at the present invention described below.

<Structure 14 of the Invention> That is, the present invention provides an image-forming laminate in which a photosensitive layer containing a substance containing a quinone diazide structure and a silicone rubber layer are provided in this order on a support, and The present invention relates to a method for processing an image forming laminate, which is characterized by subjecting it to a base treatment.

The image forming laminate of the present invention is used as a lithographic printing plate precursor that does not require dampening water, particularly as a negative or positive amphoteric type lithographic printing plate precursor that does not require dampening water.

The structure of the image forming laminate includes a photosensitive layer backed by a support, and a silicone rubber layer provided thereon.

In order to create a negative-working lithographic printing plate that does not require dampening water from such a laminate, for example, the laminate is entirely exposed to light [5 to 60 mol% of the quinone diazide units of the substance containing the gynonide structure in the photosensitive layer are exposed to light]. [C refers to exposing the entire surface to light in an amount that causes decomposition]] and then image exposure using a negative film or negative original C1ifii image exposure i/41 This refers to the amount of exposure sufficient to photolyze 70 moles or more. (The image exposure for the negative version is the same below)
), or conversely, after image exposure, the entire surface of the solid body including the non-image area is exposed, and then the image forming laminate is subjected to base treatment and then developed, or alternatively, it is developed at the same time as base treatment. By this, a negative-grooved, water-free lithographic printing plate is obtained.

Furthermore, in order to create a negative-type lithographic printing sheet 11 that does not require dampening water, for example, the image forming laminate having the above structure is subjected to image exposure using a Gafilm or a negative original image, and then this image forming laminate is The base store 1WJ! t.

After that, a squid-type lithographic printing plate that does not require dampening water is obtained by developing it or simultaneously developing it with a base treatment.

-Again. To create a positive dampening water-less lithographic printing plate,
For example, the image-forming laminate having the above structure is subjected to double-image exposure using a positive film or a positive original image [5 to 60 mol% of the quinonediazide units of the substance containing the quinonediazide structure in the photosensitive layer of the image-exposed area is sufficient for photodecomposition] It refers to the amount of exposure.

(Image exposure of the positive plate is the same below)] 1 and then in this image 3: The forming laminate is treated with a base j! A 711-type lithographic printing plate that does not require dampening water can be obtained by developing after 14 days or by developing at the same time as base treatment.

To explain the processing method of the image forming laminate of the present invention with reference to the drawings, FIG. 1 shows the image forming laminate, and FIGS. A schematic diagram illustrating an example of the procedure for manufacturing an I-Ga type lithographic printing plate that does not require dampening water, and FIG. .

Image forming laminate 11''i of the present invention as shown in FIG. It is what it is.

By adhering the cuff film 2f to this laminate 1 and subjecting it to one image exposure, the image exposed portion 11 of the photosensitive layer 2 is formed.
' is generated [see Figure 2 (~)].Next.

The negative film 2 is removed and the entire surface of the laminate 1 is exposed to light.
Refer to FIG. 2(B)] By removing the silicone rubber layer 1C in the image-exposed area 1b' by base treatment and development, a negative-working lithographic printing plate 6 that does not require dampening water is obtained.
See Figure 2 (C)]. This procedure is shown in FIG.

In addition, among the above steps, for example, after exposing the entire surface of the trenchless laminate 1, applying the I-Ga film 2 in close contact with it and exposing it to 2 images, 9 then following the same procedure as shown in FIG. Unnecessary lithographic printing plates are removed 1:). This procedure is shown in FIG.

Furthermore, as shown in FIG.
By closely contacting and imagewise exposing the plate, and then performing base treatment and development to remove the silicone rubber layer 10 of the imagewise exposed portion 11)', a negative-working lithographic printing plate plate that does not require dampening water is obtained (see Fig. 4). See n)]. This procedure is shown in FIG.

Furthermore, as shown in FIG. 5, a single image exposure is performed by closely contacting the positive film 4 to the laminate 1, so that the photosensitive layer is image exposed, i'1. Then, by base treatment and development, the silicone rubber layer of the photosensitive layer in the unexposed area is removed, resulting in positive type lithographic printing that does not require dampening water. This is version 5 [Figure 5 CB
〕reference〕.

The above explanation deals with the case where only the silicone rubber layer is removed when forming the image area, but the case where the photosensitive layer is also removed together with the silicone rubber layer can be similarly explained.

Base treatment plays an important role in producing a lithographic printing plate that does not require dampening water from such an image-forming laminate. That is, in a photosensitive layer containing a substance containing a quinonediazide structure, a portion exposed to light such that 5 to 60 moles of quinonediazide units of the substance containing a quinonediazide structure are photodecomposed is treated with a base. Because the adhesive strength with a certain silicone rubber layer is improved and its solvent resistance is also significantly improved, the silicone rubber layer on the photosensitive layer is not removed by the developer and the photosensitive layer and the silicone rubber layer are bonded together. It plays an important role of remaining on the support and forming a non-image area.

Furthermore, the exposed portions of the substance containing the quinonediazide structure in the photosensitive layer are treated with a base so that 70 moles or more of the quinonediazide units are photodecomposed.

The adhesive strength with the silicone rubber layer on top of the photosensitive layer decreases, and in some cases, the solvent resistance of the photosensitive layer also decreases. It plays an important role in that a layer is removed to form an image area.

The amount of exposure given to the photosensitive layer, including the entire surface and image exposure, is based on the quinonediazide unit contained in the initial unexposed layer. Therefore, for example, when exposing the entire surface to 5 to 60 mol% and then performing image exposure, the remaining 95 to 40 mol is not 70% or more, but 1.-Tal is 70 mol of the initial amount. This means applying a glaze to the entire surface of the film at a concentration of 5 to 60 molar ratios so that the ratio is higher than 100 molar ratios.

The photosensitive layer and L+ referred to in the present invention are composed of a known substance containing a quinonediaside structure, and the substance containing a quinonediaside structure is commonly used in positive type J/S plates, Wibon plates, photoresists, etc. These are quinonediazides.

Such quinonediasides may be polymers, oligo-zi or monomers, and are quinonediazide sulfonic acid esters obtained by condensation with compounds having a hydroxyl group, or quinonediazide sulfonic acid amides obtained by condensation with amines.

Examples of these include esters of benzoquinone-1,2-diazide sulfonic acid, naphthoquinone-1,2-di'andosulfonic acid, and polyhydroxyphenyl (hereinafter, esters include partial esters).

Naphthoquinone-1,2-diazide-4-sulfonic acid'!
Ester of quinone-1,2-diazide-5-sulfonic acid with tobirogallolacetin resin.

Poly(p-
aminostyrene) and naphthoquinone-1,2-diazide-
Amides of 4-sulfonic acid or naphthoquinone-1,2-diazide-5-sulfonic acid, poly p-hydroxystyrene and naphthogynone-1,2-diazide-4-sulfonic acid or naphthoquinone-1,2-diazide-5-sulfonic acid esters of polyethylene glycol and naphthoquinone-1,2-diazide-4-sulfonic acid or naphthoquinone-1,2-diazide-5-sulfonic acid esters, polymeric amines and naphthoquinone-1,2 = Amide of diazide-4-sulfonic acid or naphthoquino/-1,2-diazide-5-sulfonic acid, polymethacrylic acid p-hydroxyanilide and naphthoquinone-1,2-diazide
Esters of 4-sulfonic acid or naphthoquinone-1,2-diazide-5-sulfonic acid, amine-modified natural resin rosin and naphthoquinone-1,2-diazide-5-
Amides of sulfonic acids, epoxy resins from bisphenol A and propylene oxide and esters of naphthoquinone-1,2-diazide-5-sulfonic acid, polymers of monoesters of tosihydroxophenyl (meth)acrylate and naphthoquinone-1,2 - diazide-4-sulfonic acid type or naphthoquinone-1,2-cyanodo-5-sulfonic acid ester, a polymerized condensate of aminoisontalic acid sialyl ester and naphthoquinonediazide sulfonic acid,
Cross-linking quinone diazide sulfonic acid ester or quinone diacid with polycarbonate using isocyanate-t-, etc., and fc mo, bisphenol Δ and naphthoquinone-1゜2-diazide-4-sulfonic acid or naphthoquinone-1
,2-diadi)'-5-sulfonic acid.

Naphthoquinone-1,2-diazide-5-sulfonic acid and phenol compounds such as phenol and p-cresol 1. Esters with alcohols such as ethyl, propyl, butyl, amyl alcohol, naphthoquinone-1,2-diazido-5-sulfonic acid aniline.

Examples include acid amides with amines such as p-hydroxyaniline. Particularly preferred is a quinone dioxide photosensitive resin.

Here, the amount of photodecomposition of quinonediazide units of a substance containing a quinonediazide structure refers to the red evening one-line absorption spectrum (F
2200 to 2000 cm derived from the diazide group of quinonediazide in the photosensitive layer by T-IRATR method)
The amount of change in the absorption intensity of a region (the area intensity of the absorption spectrum) due to exposure, that is, the amount of photodecomposition of the diazide group, is calculated based on the value of the unexposed photosensitive layer.

The term "photodecomposition of quinonediazide" as used herein is generally referred to for quinonediasides, and is the change from quinonediaside to carboxylic acid due to exposure to light. For example, taking naphthoquino/-1,2-diamby-5-sulfonic acid and phenol formaldehyde novolak resin,
It is indene carboxylic acid.

Therefore, in the present invention, exposure is applied so that a specific amount of quinone diazide units of a substance containing a quinone diand structure in the photosensitive layer is photodecomposed.

It means producing a specific amount of a carboxylic acid component by photolysis.

It is difficult to uniquely define the exposure amount that can be achieved in the present invention. It varies depending on the irradiation light, etc.

The base used in the base treatment of the present invention refers to a base used in the ordinary chemical field, and is defined as a proton acceptor or an electron donor. The base may be either inorganic or organic.

- Examples include the following.

As the organic base, organic bases having 1 to 30 carbon atoms (with the exception of hydrazine, ammonia, hydrazine, and hydroxyamine) are preferable, such as elm, ammonia (ammonium hydroxide), methylamine, etc. ,
Ethylamine, dimethylamine, diethylamine, trimethylamine.

Triethylamine, propylamine, butylamine, amylamine, dipropylamine, dibutylamine, cyamylamine, I-dipropylamine.

l-butylamine, methyldiethylamine, ethylenecyamine, trimethylenediamine, tetramethylenecyamine, 1r IJ ethyleneimine/, benzylamine,
IJ, N-dimethylpencylamine, J<.

N-diethylbenzylamine, N,N-cypropyrube/
Zylamine, 0-sun or n+-suntake p-methoxy or methylbenzylamine, N, N-cy(notogycypencyl)amine, β-phenylethylamine, ε, δ
-Phenylamylamine, γ-phenylpropylamine, cyclohexylamine.

Aniline, monomethylaniline, diethylamine, l-
leucine, benzidine, α-dβ-naphthylamine,
oAlso li m −”t fC, f',, f J−”−
Elm/cyamine, pyrrolidine, piperidine, hyperazino.

Morpholine, Urothrobin, Diazabijikuro/Deca/
, pyrrole, pyridine, quinoline, hydrazine, phenylhydrazine, N,N'-diphenylhydrazine, hydroxylamine, urea, semicarbazide, thioprotofilament, lysine, histidine, quinine, flucine, caffeine, cy/conine, cocaine, strychnine, tetraalkylammonium hydroxide, aminobenzoic acid, porumamide, acetamide h', N,N-dimethylformamide, N,N-
Dimethylacetamide, acetanilide, monoethanolamine, jetanolamine, triecule amine, 2
-(2-Aminoethyl)ethyl/-ol.

2-amino-2-notyl 1. Ro-bropa/diol,
2-amino-1,6-propanesiol.

Amine compounds such as 2-amino-2-hydroxymethyl-1, low propanediol (1 gau, 2 N&.

Tertiary amines, monoamines, diamines, triamines.

From tetraamine to polyamine 1, aliphatic chain amine,
aliphatic cyclic amines, aromatic amines, heterocyclic amines)
and amine derivatives such as acid amides, or salts of carboxylic acids and amines (for example, salts of octanoic acid and monoethanolamine, jetanolamine, etc.).

Also, alkali metal alcohols such as sulfur methylate, sodium ethylate, sodium propylate, potassium methylate, potassium ethyl-1-, lithium globisheet, lithium notylate, and lithium ethylate, and sodium.

Alkali metal amides such as potassium and lithium amides, ethylamide, and dipropylamide are used.

As the inorganic base, hydroxide l-1) Horn 1. Potassium hydroxide, lithium hydroxide, calcium hydroxide, barium hydroxide, thorium carbonate, potassium carbonate.

Lithium carbonate, calcium carbonate, barium carbonate.

Sodium bicarbonate, potassium bicarbonate, potassium cyanide, sodium cyanide, phosphoric acid.

Potassium phosphate, sodium silicate, potassium silicate.

Alkali metals such as sodium metasilicate.

Alkaline earth metal hydroxides, carbonates, etc. are used.

Also, as a base, it has the shape of a mask.

For example, acids such as carboxylic acids and phosphoric acids and alkali metals,
Salts with alkaline earth metals can also be used.

Particularly preferred among these bases are i'iso bases, and among these, amine compounds are particularly preferred.

These bases may be used alone or in a mixture, in liquid or gas phase. If it is in liquid form, it may be in the form of a base itself or a solution, for example. When used as a solution, the solvent may be either an aqueous solution, an organic solvent, or a mixture of both.It may also be a mixture of the two with a developer.

The amount of base to be used in either gas phase or liquid phase treatment cannot be determined exactly. The minimum amount to produce an effect (
(absolute amount) is clearly necessary.

Even if there is a large amount, the effect will not be diminished.

To achieve this effect, if the base concentration is low, it is sufficient to perform the treatment for 5 hours under the condition that the required amount of base is supplied, whereas if the base concentration is high, a short time is sufficient.

In this sense, the concentration when used as a solution is not particularly limited, and depends on the strength of the base, ease of operation,
From safety and practical processing times.

In the gas phase, 150 or less, 001% or more” 2. Beheading mechanism 30~
40 or less 01L$ or more, liquid phase 100 or less 0.0
A sufficient effect can be obtained preferably in a concentration range of 50 parts or less and 0.01 part or more.

The time for treatment with a base is not particularly limited to 1%, and can be selected appropriately depending on the strength of the base and the AIk, but 9 normal treatments
If you touch lj KJ, the effect will be felt immediately, and even if you touch it for a long time, there will be no change in the effect. Usually, the time is about 2° to 60 minutes.

1/ in pond shape! i! If necessary, the printing plate precursor may be immersed in a base or a base solution, or a base'! f. It is sufficient to not wet the plate surface with the bamboo base solution. When processing in a gas phase, the plate surface is exposed to a gas phase containing the base.The base treatment of the present invention is carried out after image-forming laminate is exposed to light and before development, or at the same time as development.・)It is a thing.

In addition, other components may be added to the photosensitive layer for the purpose of improving coating film formation and groove removal properties from the support within a range that does not impair the effects of the present invention. -d or blending a sensitive polymer or monomer component into the photosensitive layer in a developer solution in order to partially or completely remain.

Also, during development or exposure, the image is visualized using f-
It is possible to add dyes etc.

The thickness of the photosensitive layer used in the present invention is about 01 to 100μ,
Preferably, it is about 05 to 60 μm; if it is too thin, defects such as pores will easily occur during coating.

On the other hand, if it is too thick, it is disadvantageous from an economic standpoint.

The silicone/rubber layer used in the present invention is mainly composed of a linear organopolysiloxane having a molecular weight of several thousand to several tens of degrees and having a nine-fold center, not a linear one.

Silicone rubber can be obtained by crosslinking such linear polysiloxane in pieces.

A silicone crosslinking agent is added to crosslink this linear organopolysiloxane piecemeal. The crosslinking agent is used at so-called room temperature (
These include acetoxin silane, ketoxime silane, alcogin silane, amino silane, amidosilane, and xysilane, which are used in low temperature) curing silicone rubber. When combined with certain types, they are respectively deaceticated type, deoxime type, dealcoholized type, deamined type, and deamidated type.

It becomes a ketone-free (acetone-free) silicone rubber.

In particular, silicone crosslinking agents listed in the ninth order are used for molding.
i2J R-8i (OAc), (deacetic acid type) (3t
R-8i (ON-CR', )s (deoxime type) (4
) R-8i (QC(R')CH=CH,), (deketone type) where R has the same meaning as R explained above.

11' is an argyl group such as methyl or ethyl, and A(
1 is an acyl group.

It is common for silicone rubber to further contain a tin compound with a small amount of carbon dioxide as a catalyst. The appropriate thickness of the silicone rubber layer is about 0.5 to 100 μm + preferably about 0.5 to 50 μm; if it is too thin, it may cause problems in terms of yield strength, while if it is too thick, In the image-forming laminate of the present invention, the support and the photosensitive material are not economically disadvantageous. adhesion between the photosensitive layer and the silicone rubber layer.

Regarding basic printing plate performance such as image reproducibility and printing durability,
Since it is very important, it is possible to provide an adhesive layer between each layer or to add an adhesion-improving component to each layer, if necessary.

In particular, various adhesive layers are used between the photosensitive layer and the silicone rubber layer for adhesion between the layers, and among them, an aminosilane layer is preferred. Here, h is generally expressed by the following formula.

R111R' n S 1 (OR'') 4- m-n
Typical examples include 1, for example, 6-amituglopyltriethoxysilane, r*-(2-amineethyl]-6-
Amitupropyltrimethquine silane.

3-aminoglobil trimethoxo/zine, bis[3-(
1-litginsilyl)propyl]amine.

His[3-(f-'Jmethoxy7lyl)propyl]ethylenediamine, N-(3-l·rimethoxy/silylpropyl)morpholyl/ltrinotoxysilylpUlbildiethylenetriamine, bis(2-human "xyethyl)amino Probyltriethoxysilane 7゜3-aminopropylmethyljethoxysilane, (N,N-diethyl-3-amine)propyltoxy7lane, (N,N-dimethyl-ro-amine)propyltrimethoxysilane , N-
Examples include methylzminoglopyltrimethoxine, N-phenylaminopropyltritoxysilanesilyl-2-(p-m-aminomethyl)-phenylethane, and tritoxysilylpropylallylamine.

Similarly, organic Chikuyo-F layers are preferred for adhesion between the photosensitive layer and the silicone rubber layer. The organic chitai here, -
1. generally refers to titanium-based psiima as expressed by the following formula.

Ti(OR), or Ti(OCOR')4.
-n(OR)n, , where R,'s! represents alkyl, aryl, cycloalkyl or alkenyl, and the same and the same are different.

n is 0.1 sun.

Representative examples of these include, for example, Detra Inobu L1 Bokin Titanium. TeiC 11-butoxytitanium,
Tetrastea ``jki/chikun, tetrakis-(2-ethylheginol) titanate, -tona-do tetrablekyl titanate.

Dipropoxy bis(acetylacetonato) titanium, dibutoxy bis(acetylacetonato) titanium, dibutoxy bis(triethanolaminate) titanium, dihydroxy bis(lactato) titanium, tetrakis(2-ethylhexanethiolato) titanium, etc. titanium clean
1.0 tri to n-butquine titanium monostearate 1.

Examples include aggregates of titanium 1□ horns such as titanium tetrabenzony 1.

In principle, the thickness of the adhesive layer should be at least a monomolecular layer, but in actual coating operations, it will be within the range of 10+nμm2/Z. ], but not t1゛〃・shi, F.p'. has a significant influence on the penetration of the developer into the optical layer.

Similarly, at the 4th point between the photosensitive layer and the silicone rubber layer, an adhesive component is added to the silicone rubber layer, and the gods are added (although it is, f: f -)゛Hano 7 Synthetic titanates or organic titanates are preferred. Here, the water-containing aminosilane or titanium-IU is the same as previously described.

The amount of amino/cyamium or organic titanium (-1) contained in the silicone rubber layer (relative to the main component linear, j-xenone) is preferably 0. 0 5 to 10 weights (,
: Weight type, more preferably 01 to 5 weight type is selected.

It can also be used as a mixture of aminolysine and organic titanate, or as a mixture with other adhesive components.

The support must be flexible enough to be set in a normal lithographic printing machine and capable of withstanding the load applied during printing. Typical examples include metal plates such as aluminum, copper, and steel, plastic films or sheets such as polyethylene terephthalate, coated paper, and rubber.

It is also possible to use a composite support, a support with equal rubber elasticity, a support with a rubber elastic layer, and a cylindrical support.

It is also a useful oil to further apply a coating to the above-mentioned 7-Autumn material to prevent nolation or for other purposes.

Polyethylene terephthalate, the surface of which has been subjected to plain or uneven treatment for the purpose of protecting the silicone rubber layer forming the surface of the image forming laminate constructed as described above; Polypropylene, polyethylene.

polystyrene, polyvinyl chloride, polyvinylidene chloride,
It is also possible to laminate a thin protective film or sheet such as cellophane. The protective film is not particularly limited and may be removed before exposure (for both A, F, and positive types). As a protective film for J2 that can be used during exposure (both O, G, and positive types), it is like the above! It is a film that has been subjected to a t-brane or uneven treatment, and has a transparency that allows ultraviolet rays to pass through, and a thickness of 100 μm or less to prevent burn-out during exposure, and a thickness of 60 μm or less for a favorable mechanism.

The layer structure of such an image forming laminate is as follows.

In this order, the support, if necessary, the adhesive layer or psiima layer, the photosensitive layer, and if necessary, the contact layer, the silicone rubber layer, and finally the protective layer, which is not necessary. be.

In the case where the entire surface of the photosensitive layer is exposed, which constitutes the present invention.

The necessary amount of exposure may be applied to the printing plate precursor coated with a photosensitive layer or a photosensitive layer and a silicone layer, or even a protective layer in some cases, on or off the production line.

In the case of image exposure, it is necessary to expose the image-forming laminate to the required amount of light through a normal exposure operation during plate making. Flash exposure can also be used to provide a specific amount of light exposure over a short period of time. In this sense, a method in which the entire surface of the 9-image forming layer laminate is exposed to flash light and then exposed to two images, or a method in which the entire surface is exposed to flash light after all of the image-forming layers is exposed, followed by base treatment and then development or base treatment. By simultaneous development, an I-Ga type lithographic printing plate that does not require dampening water can be obtained.

Similarly, if the image-forming laminate is imagewise exposed to flash light, treated with a base, and then developed, or developed simultaneously with the base treatment, a positive-working lithographic printing plate that does not require dampening water can be obtained.

70 molar ratio of quinone diazide units of the substance containing the quinone/diazide structure in the photosensitive layer] When the carboxylic acid component is photodecomposed to form an image, during plate making 1. It is necessary to give the body the necessary exposure.

As in the case described above, the light #il if used for exposure to photodecompose a certain JLi of the quinonediazide unit of the quinonediazide structure in the photosensitive layer is not particularly limited, and the quinonecyantotacarboxylic acid (b) Generates light in a wavelength range that can be changed to For example, ultra-high pressure mercury moons, carbon puta moons, metal halide lamps, xenon lamps, chemical lamps, fluorescent lamps, sunlight, etc. are used.

The image-forming laminate according to the present invention as described above is manufactured, for example, in the following manner.

t f On top of the support, reverse roll coke, go-
Using an ordinary Coke or Ike Whaler coating device such as an Arnife coater or a Meyer bar coater, apply the composition M to form the photosensitive layer, dry it, heat cure it as necessary, and then apply it as required. If so, apply an adhesive layer on the photosensitive layer in the same manner, dry it, and then apply a silicone gum solution on the photosensitive layer or adhesive layer in the same manner. It is heat treated at a high temperature for several minutes to fully cure and form a silicone rubber layer. If necessary, laminate a protective film over the silicone rubber layer.
- Cover with a tar etc. When the image-forming laminate obtained in this way is used as a squid-type lithographic printing plate precursor that does not require dampening water, it can be used for one year after coating the photosensitive layer or for molding or protection after coating the silicone layer. It must be manufactured by fully exposing the film after lamination.

Full-face exposure during the manufacturing process: When the carcass is used as a type lithographic printing plate that does not require dampening water, the entire surface is exposed during the plate-making process. Or later, expose the entire surface including the image area in the non-image area.
-You have to turn the knob.

Alternatively, it can also be used as a negative type planographic printing plate precursor that does not require dampening water without any particular operation.

On the other hand, when used as a positive type planographic printing plate precursor that does not require dampening water, such operations are not particularly required.

In this sense, in order to obtain an image from the same image forming laminate, the number of exposure seconds must be changed (i.e., a positive film or a positive original (149 using +IB) IC6:
E h(\, substance containing a quinone diand structure in the optical layer'1
5 to 60 moles of Kino, -diazide units in '↓ are photodecomposed, 1. After full image exposure, base treatment and development are performed. When using both A and G, either a normal image exposure is applied, or the quinonediaside structure 7:1. .

5 to 6 of the quinonediazide valence of fJ-containing substances)
- ノ [Relationship 1L to decompose the image rrll k 廽目-C仝ili it knee H, 16) y; Or just to take a look at the picture 9 of Tsu'hatake c, only 6° j,
After 7 hours, base treatment and development were carried out for 7 times. Like this 1・′
With this, printing plates can be made from a single printing plate precursor, even from any type of positive or squid type.

Examples of exposure for forming both images from such an image-forming laminate include the following. For example, exposure to actinic light through a vacuum-adhesive film (contact exposure), or projection exposure through a negative or positive film (transmitted light). (projection plate making), exposing the negative to the light reflected from the positive original (direct plate making), etc. The presence or absence of a protective layer, especially a cover film, does not have a significant effect on exposure.

The light sources used in this exposure process are those that generate abundant ultraviolet light, and include mercury lamps, carbon arc lamps, xenon lamps, and metal halide lamps.

You can use fluorescent lights, etc. Furthermore, in addition to ultraviolet rays, laser light and the like can also be used.

Base treatment--Prior to and simultaneous with development of the exposed imaging laminate. Simultaneously with development as used herein means to carry out a development operation using a developer to which a base has been added. During development, when the plate surface is rubbed with a developing vat containing developer, a, two-image exposure f' in the case of a G type lithographic printing plate that does not require dampening water.
The silicone rubber layer and, if necessary, the photosensitive layer are also removed to expose the photosensitive layer layer or the surface of the support, which will serve as an ink receiving area.

In the case of positive type planographic printing BFj that does not require dampening water, the unexposed silicone rubber layer and, in some cases, the photosensitive layer are also removed, and the photosensitive layer t becomes the ink receiving area.4. = 1:1 support surface exposed.

As the developer used in the present invention, there can be used those known as developers for lithographic printing plates that do not require water. For example, aliphatic hydrocarbons (hekylene).

Hegetan, Paainpa 112. H, (J″′C trade name of aliphatic hydrocarbons manufactured by Etsuo Chemical) or gasoline,
kerosene, etc.), aromatic hydrocarbons (toluene, etc.).

(squeaky/nido) or halogenated hydrocarbons/
It is preferable to add the following polar solvent to (such as trichlene).

Alcohols (methanol, ethanol, A(/I, and) Ethers (methyl cellosolve, Edilse [J Norzo,
Petyl hironlube, methylcarpitol.

Coachyl Carbitol,) 0 Chill Carbitol! Ketones (acetone, methyl ethyl carbon, etc.) Esters (ethyl acetate, methyl cellosol, acetate, etc.)
, cellosolve acetate-1, carbitol acetate, etc.) f, fc CV, acedracin red, and other dyes may be added to the image-limiting solution to simultaneously carry out development and dyeing of the photosensitive layer.

Processing method for image forming laminate described above in detail 9 In an image forming method in which an image forming laminate consisting of a selected photosensitive layer and a silicone rubber layer is used as a lithographic printing plate that does not require dampening water, The resulting printing plate has the shape of the 9th order.

That is, the non-image area is treated with a base.
~60 mol is the part that has been exposed to enough light to photodecompose, and when this exposure is applied in an image form, it forms a di-shaped non-image part. An image is formed using
11 + J type that forms an image area) Forms a negative non-image area when exposed to light with 1 ≧ (Iga type is a type that forms an image using Iga original picture or Oga film) A type in which two image exposure areas form an image area).

In contrast, the image area is the part of the substance containing the quinonediazide structure in the photosensitive layer where the 1'1 position of the quinonediazide is not actually photodecomposed or the 70 of the intermediate position;
Part 5 of the part that received enough exposure to emit light.
()vinegar.

The unexposed part of the part that is not substantially photodecomposed or positive II, If
U) Forming an image area, 4'// in the photosensitive layer of the corresponding area
The portion of the substance containing the diazide structure that has been exposed to sufficient light to photodecompose 70 mol % or more of the chino/diazide 1li-positions forms a burr-shaped image area.

+C, the other negative type, 11 both fAf parts are 1
1. End-exposure of the portion of the substance fi containing the quinone diaside structure in the photolayer where the quinone diaside units are not substantially photodecomposed,)
11 from the part that is the L part and one image part has received enough exposure to photodecompose 70 or more quinonediaside units of a substance containing quinone/diazide units 1;1° in the photosensitive layer.
4.

The image forming laminate used in the present invention is formed by forming a photosensitive layer by the action of a base.
It is thought that at least a part of the contained substance is modified to improve the adhesion between the noricorn rubber layer and the photosensitive layer and the texture R1 properties of the photosensitive layer. That is, it is thought that the change in the photosensitive layer due to base treatment is interpreted as a change in the solvent resistance of the photosensitive layer and a change in the adhesiveness between the photosensitive layer and the silicone rubber layer. However, it is thought that the carboxylic acid generated from quinonediazide by photolysis simply functions to attract the base inside the plate from outside the plate in order to selectively interact with the base and quinonediazide. .

In such a change, for example, only when a carboxylic acid component, such as a carboxylic acid component generated from quinone diazide Yoshii at 1% of the light intensity, is present in the photosensitive layer, the base treatment is possible.
UC for image formation based on the 4U adhesion of the 1L layer and the noricorn rubber layer and the significant increase in solvent resistance on the surface of the photosensitive layer.
It can be realized with practical ease in a layered structure. More than a certain amount
- If a carboxylic acid component is generated by exposure to light, no darkening effect can be expected, and therefore the adhesion between the photosensitive layer and the noricone rubber layer is weak.

In addition, since the photosensitive layer has poor 1IiJ solvent properties, the corresponding silicone rubber layer or photosensitive layer is removed by the development operation.

In other words, the key point of the present invention is to develop the direct change caused by exposure by utilizing the difference in solubility of the 1ζ-adhesive layer, which is related to the development of exposed and unexposed areas according to the conventional concept. Since the image is formed by sensing the difference in 1U bath bath dissolution or swelling, which is involved in development, the image is formed by amplifying it by processing all the bases. An advantageous concept is that the on-off times of both the image and non-image areas are greater than in the past.

<Effects of the Invention> According to the thus obtained image forming laminate and its image forming method.

(1) In particular, the adhesion between the photosensitive layer and the Noricone 'J' A layer should be carefully monitored.

(2) The 11i1 bath agent properties of the photosensitive layer and the solvent resistance of the image forming laminate are significantly improved.

(3) In image formation, it is possible to produce a positive type plate and a positive type plate from the same plate material.

(4) The difference between the exposed area and the unexposed area (adhesion between the photosensitive layer and the noricorn rubber layer, the surface of the photosensitive layer) is important.1. /
), so the development latitude is significantly expanded, and the temperature and humidity.

Less susceptible to external factors such as development time.

(5) Printing plate f with constant quality even if plate manufacturing conditions are widened: Strengthening (expansion of manufacturing latitude).

(6) A high-sensitivity positive type lithographic printing plate that does not require dampening water can be obtained.

(Power: Blurred images caused by nitrogen caused by exposure to light are significantly prevented.

(8) Since the photosensitive layer can be dyed, it is possible to detect peeling of the silicone layer not only in the image area but also in the non-image area, and plate inspection performance is significantly improved.

(9) Since the non-image area develops a brown color due to base treatment, it is easy to distinguish between the image area and the J1 image area during development operations, printing plates, etc.

00) The non-image area of the printing plate has lost all of its photosensitive properties through base treatment, so there is no need for any pouring when handling the printing plate in a bright room. Effects such as no special fixation required for this purpose are achieved.

<Examples> The present invention will now be described in more detail with reference to Examples. Note that parts used in the examples are parts by weight.

Example 1 Enol formaldehyde resol resin (Sumishiite Resin PC-I, manufactured by Sumitomo Durez) was applied to a thickness of 2μ on an aluminum plate (manufactured by Sumitomo Light Metals) with a thickness of 0.24 mm,
The material cured at 190'C and filtration is used as a support, and the following photosensitive I! U, apply the composition, 12D'c
, heat for 2 minutes]]! A photosensitive layer of 271 degrees was provided.

Naf]・quinone-1,2-diazide-5-sul;
l (minute ester (47 Nisdell formations by IR method)
100 Φ place I part 4.4L in ginenylmethane iso/anate 60;
1 [part dibutyltin silaure 1-0.2 nails; i:: part dioxa, 74 o nails [IX part] Subsequently, after spin-coating a silicone rubber composition having the composition below, 120°C2 dew point 30.2 Apply a 2μ silicone rubber layer by curing with moist heat for minutes.

An image forming laminate was created.

Dimethylborisiloxane (molecular weight approx. 25,000°, terminal hydroxyl group) 100 parts by weight Vinyltris(methylethylchelaxime) silane 8 parts by weight Dibutyltin cyacetate 1.02 double claw part 7.-aminozorobyltrimethoxy/silane 1 part by weight Isopar IC (manufactured by Exxon Chemical, fat release hydrogen solvent) 1800, image forming phase U that requires 1 part of tl
Using the idol fin 2000 manufactured by Misaki (Ichikiryo),
UV meter at a distance of 1m (m3 Okuku Seisakusho Seat Measure Type UV-40211) 11m to V/cm
The whole surface was exposed to 6 sands at an illuminance of '. It was confirmed by the infrared spectrum that 18 moles of quinone diaside in the photosensitive layer were photodecomposed to produce a carboxylic acid component due to this exposure.
is.

150&! vacuum-adhered to the image-forming laminate obtained by full-surface exposure as described above! A negative film having a halftone dot image of /inch was exposed to light for 60 seconds from a distance of 1 m using a J-rie Metalno Ride lamp. Next, NofpasoD (development pad manufactured by RoIA) was added to a base treatment solution (
Isopar) 1/butylcarpitol/ethyl cellosolve/ethanolamine = 90151510.1 weight ratio) without completely wetting the exposed plate surface. After 1 minute, the area exposed entirely to light turns brown. Remove the base treatment solution from the plate soil using a rubber squeegee, then pour a developer (Isopar n/butylcarpitol/ethylcarpitol - 20/40/40 weight 1, knee ratio) onto the plate and development pad, and develop. When the plate surface was lightly rubbed with a pad, the silicone rubber layer in the imagewise exposed area was removed, and the surface of the photosensitive layer was exposed. - The silicone rubber layer remained firmly in the exposed areas where the entire surface had been exposed, and an image faithfully reproduced the negative film.

This printing plate was attached to an off-cent printing machine (Komori Sprint 2 Color) and printed using Toyo Ink's "Aquares ST Indigo" without using dampening water, resulting in 150 lines/print.
Printed matter with an extremely good image in which halftone dots of 5 to 95 inches wide were obtained was obtained. Even after 50,000 copies had been printed, no scumming or damage to the plate surface was observed, and the plate was in good condition for further printing. Image 1J Current 4 of the printed matter did not change at all throughout the printing period.

- Image 9 manufactured as described above: Using the same metal halide lamp and UV meter as before, the entire surface was exposed for 60 seconds at a distance of 1 m at an illuminance of 11 mvi/cm2. . It was found from the red I spectrum that 95 moles of guinone siaside in the photosensitive layer was photodecomposed by this exposure. Thereafter, VC image exposure, base treatment, and development were carried out in the same manner as above, and the silicone rubber layer covered the entire surface U, and no peeling 9 image was formed.

Example 2 An image forming laminate and a developing pad produced as described in Example 1 and exposed to light contained /''', iit group A.
J developer solution (ISOPAR H/butylcarpitol/ethyl cellosolve/monoethanolamine-9015157
0.2 weight ratio) and uniformly wet the plate surface with a developing pad, only the areas exposed to the entire surface will be colored brown. Then, by lightly rubbing it with a developing pad, the imagewise exposed portions of the silicone rubber layer were removed and the surface of the photosensitive layer was exposed. - The silicone rubber layer remained strong in the areas that were only exposed on the other side, and as in Example 1, the printing plate produced an image faithful to I. Gaffirun. Even) T.

Example 2: Image exposure was carried out through a Gafilm and the entire surface was exposed using a Kashinotarhalite lamp.
Everything except f and = was carried out as described in Example 1.
2) However, the printing plate obtained in Example 1 was completely different from the printing plate obtained in Example 1.

Example 4 Enol formaldehyde resol resin (-7,6>Itresin PC-I, manufactured by Sumitomo Durez) was applied to a thickness of 17μ on an aluminum plate (manufactured by Sumitomo Light Metals) with a thickness of 0240,
It was cured at 180'a for 3 minutes to form a support. The following photosensitive layer composition was applied onto this support using a rotating cloth, 120'c, 2
The photosensitive layer was cured by heating for a minute to form a photosensitive layer with a thickness of 26 μm.

(a) Phenol formaldehyde novolac resin with degree of esterification of 48 (Sumilight Tresin PR50235)
Naphthoquinone-1,2-diazide-5-sulfonic acid ester (Ioo part (j)) of 4.4/-cyphenylmethane cyisocyana (manufactured by Sumitomo Durez)
1.3 07i15 (C) Dibutyltin disiurate 02 parts (d) Shea
Key! I' 7 2.00 D H'1 (hi Apply the noricorn rubber composition of composition 1. on the lever with a Meyer bar coater? & , 120 '0, DJ"30'
c. A silicone rubber layer having a thickness of 26 μm was provided by heating and curing for 4 minutes.

(a) Simethylpolysiloxane (molecular weight approximately 25.

oo, terminal hydroxyl group) 1' O0 part (b) Vinyl I・su (methylethylcutio・＼・/1
) 8 parts (C) Dibutyltin diacetate 1 part (d) r-7
Minoprobil trimethoquinosilane [], 5 i':l
: (0) Fisovar” C (manufactured by Efnon Chemical) 440
Do it like above! For image formation ('+T layer carcass), a Bosino illumination film having a halftone image of 150 lines/inch was vacuum-adhered according to a conventional method, and a distance of 1 m was set using the metal halide lamp used in Example 1. ) jlf used in Example 1. 11 mW/fi UV meter.
Exposure was carried out for 9 seconds at lj degree of cm'. This plate was then mixed with Isopar II/propylene glycol 1-methyl nitrate/ethyl cellosolve/monoethanolamine.
DJ with a base consisting of 9U/5/5/0 filter weight 4ji ratio), retaining liquid C (soaking and rubbing lightly with a developing pad removes the /licon rubber layer in the unexposed area and exposes the surface of the photosensitive layer, forming an image area) However, the exposed area/recone'J)
,layer. A printing plate with an image faithful to the original film was obtained, with no residual marks or non-image areas being affected by the J developer.

This printing plate was attached to an offset printing machine (C Komori Sprint 2 Color), and was printed using Toyo Ink's PaQuares S T Indigo.
When I printed using this product without using dampening water, I was able to obtain a printed matter with an extremely good image in which 5 to 95% of halftone dots of 150 lines/inch were expressed as ifG. Even after printing 10,000 copies, no scumming or damage to the plate surface was observed, and printing could continue.

Example 5 The image forming laminate obtained in Example 4 was imaged using the UV meter of Example 1 at an enlarged size of 5 times that of the original positive film using an enlarged projection printing machine (manufactured by Inu ['' Hon Screen]). 6
Projection exposure was performed at an illumination intensity of mW/cm' for 1.15 seconds. 1
After such exposure, full development was carried out as carried out in Example 4, resulting in a printing plate which appeared with full image fidelity five times that of the positive original.

Example 6 Obtained in Example 4! Direct plate making using a reflective original was performed as follows using the image forming laminate. 2
A 20,000W metal halide lamp (manufactured by Iwasaki Electric) is placed at a distance of 20 cm from a positive original picture plan "image-forming laminate using the reflected light through a plate-making camera". Illuminance at 1° is 1 mW/
cm' (measured with the UV meter used in Example 1) was exposed for 1.56 seconds under Schotter heat. After such exposure, U'C and development were carried out as in Example 4. The result was a printing plate that faithfully reproduced the original Bonn drawing.

Example 7 Varnish spool i4 on chemical conversion treated aluminum plate (manufactured by Sumitomo Light Metals)
4% phenol-formaldehyde 1 Novosic resin (manufactured by Shiyou Bakelite; Sumitoren I-'R502
Filter 5) Pouftoquinone-1,2-cyando-5-sulfonic acid ester (in ethanol 11; quantitatively measured from I'm component 9) in 6-layer dioxane solution After spin coating with Whaler, dry at 60° for 3 minutes. A photosensitive layer having a thickness of 12 μm was formed. On top of this, 7% isobar 1c W of a Noricone gum composition having the following composition: To the solution, γ-aminopropyltriethoxysilane was added in a quadruple ratio to the silicone composition, and after uniformly stirring, it was coated by rotation using a Whaler. did.

After drying 121: Me, Dp 25° heat curing for 4 minutes 22
A silicone rubber layer of μ was obtained.

(a) 100 parts of dimethylborisiloxane (molecular weight approximately 80,000, OH groups at both ends) (b) Ethyltriacetogycine 5 ilJ (C
) Dibutyltin diacetate 02 parts" A metal halide lamp (
Nanasaki 7 ni ki e idol fin 2000)'. (
1 with the UV meter of Example 1 at a distance n1t of 11n.
The entire surface was exposed to light for 10 seconds at an illuminance of 1 mW/cm<2> (the amount of light at which 25 mol % of the quinonediazide in the photosensitive layer was generated at a light intensity of IW L) to form a carboxylic acid component.

The laminate obtained by applying such full-surface coating)
The film was irradiated for 60 seconds from a distance of 1 m using a metal halide lamp (20 idle fins, 0, manufactured by Iwasaki Electric) through a closely-contact negative film having a dot image of 150 lines/inch. The surface of the exposed plate was treated with 8 parts of ethanol and 1 part of Isopar! f'4'. By rubbing lightly with a pad, both the rubber layer and the photosensitive layer were easily removed and the chemically treated aluminum surface was exposed. There was a silicone rubber layer and a photosensitive layer in the area where only the entire surface was exposed.

This printing plate was used in the same manner as in Example 1.
] The printing machine (Komori Subprint 2 color) has become obsolete.

Toyo Ink's ``Aquares ST Indigo'' is the month'N ＋
7. '11! When printed without using water, halftone dots of 5% to 95 with 150 lines/ear/h were reproduced.Excellent 4: 20,000 copies of printed matter with images could be printed.

Example 8 The image-forming laminate prepared in Example 7 (without any exposure) was exposed to a metal halide lamp (Iwasaki Electric Co., Ltd.) through a vacuum-delivered film having a halftone image of 150 lines/inch. Thorfin 2000) was used for 10 seconds at an illumination intensity of 11 mW/cm' using the fl UV meter used in Example 1 from a distance of 1 m.

After immersing the plate in a base-containing developer consisting of Isopar E/Ethanol/Pencilamine-5015015 (weight ratio), the printing plate was immersed in a base-containing developer consisting of Isopar E/Ethanol/Pencilamine-5015015 (weight ratio), and then developed with Softpad C F (manufactured by this screen).
If you rub it lightly, the silicone rubber layer in the unexposed areas will be easily removed, and the image area will be damaged.

The silicone rubber layer in the exposed area is strongly adhered and remains, forming a non-image area. The printing plate obtained by this method is a lithographic printing method in which both images faithfully appear on the Bonn film. ! You can get good prints without using water.

Example? Made by Sumitomo Light Metal, chemically treated 111j aluminum plate (thickness 0.3
mm IV The photosensitive layer composition described above was spin-coated, and 12
A photosensitive layer having a thickness of 2.6 μm was formed by heat treatment at 0° C. for 12 minutes.

(a) Phenol formaldehyde nophoranc with a degree of esterification of 44% (Sumirai Toresin PR501S
5. (manufactured by Sumitomo Durez) naphthoquinone-112-diazide-5-sulfonic acid ester 'lOO,'l: (b) 4,4'-dinoenylmethaneshinone-J'nato 2 (] Part (C) Dibutyltin dilaurate 2 :'1)(d
) Methyruhi I” Solvacedate 2 CI OO
On top of the jilt, add 0.577jH41' of γ-aminopropyltrietoquincidine (UCC: Δ1100),
i Circulation - Rotating J° Isobar E (Esso Chemical) solution with Poeler? After t-li, it was dried at 110'e for 30 seconds.

Subsequently, this "second f" it1 composition was rotated and after 7゛ cloth.

120(shi, ])]:" After 30.2 minutes of heat treatment, a silicone rubber layer with a warp of 22μ was provided.

(1) Dinotylpolysiloquiline C molecular weight approximately so, oo
o.

Both terminal hydroxyl groups) 1oO parts (b) Ethyltriacetquine 7ran (C) Dibutyltin diacetate-1.02 parts (d) Isopar 1! : 16 b O, '71i The image forming laminate prepared as described above was heated using an ultra-high pressure mercury lamp (Oak Seisakusho Nenotolite Filter 300, 2 kv).
i) The entire surface was exposed for 12 seconds at an illuminance of 1 mW/cm2 using the UV noter of Example 1 at a distance of 11n using f. It was confirmed by an infrared spectrum that 68 mol% of the quinonediazide in the photosensitive layer was photodecomposed by this exposure.

In this way, a specific amount of carboxylic acid component was generated in the photosensitive layer, and the image forming laminate was vacuum-adhered to the 150-line/inch dot image using the above mercury lamp through an O-Ga film and from a distance of 'In+. Image exposure was carried out for 60 seconds.

Next, add a base-containing developer (Isopar +
-+ / Probile / Glycol Monomethyl Needle / Ethyl Cellosol / Monoethanolamine = 8 0/1
0/1 0/1 weight ratio), wet the plate evenly and very lightly, and when the area exposed only to the entire surface turns brown, rub it with a developing pad and it will be exposed imagewise.
When the silicone rubber layer is removed from a portion of the photosensitive layer, the surface of the photosensitive layer is exposed to form an image area.

-The silicone rubber layer in the areas exposed only to full-surface exposure remains strongly and forms non-image areas. In this way, a printing plate was obtained that reproduced an image faithful to the negative film, and 250,000 good-quality prints were printed when lithographic printing was performed without using dampening water.

Example 10 The image forming laminate obtained in Example 9 (both full surface exposure and image exposure not performed) was in close contact with υkorJ" 4 and 7 days 5 (halftone dot image preservation of ko line/inch 4). A metal halide lamp (Numazaki Den Ikie Sung Dynasty Aitorfin 2000) was used throughout the film, and the illumination intensity was 7'-(11 m W/cm' using a UV meter). Exposure was made for 15 seconds.

Next, add a base-containing developer (Isopa-H/
Flopylene glycol mononofur J--j/
Ethyl Cellosol/Monoethanol-)'Mino-90
151510, 2 weight ratio). IIy Surface blue - When the exposed area turns brown after wetting it evenly, the 41
When rubbed with a developing band, the 7 silicone rubber layers in the unexposed areas are removed and the photosensitive layer is exposed. II) The image that appeared.

Example 11 An aluminum plate (manufactured by Sumitomo Light Metals) with a thickness of 0.24 mm was coated with fluoroformaldehyde resol resin (Sumilight Resin PC-11 manufactured by Sumitomo Durez) to a thickness of 2 μm,
The support was cured at 200°C for 3 minutes, and naphthogynon-1,2-diazide-5-sulfonic acid ester of phenol formaldehyde novolak resin (manufactured by Sumitomo Bakelite; Sumilite Resin PR50265) with a degree of esterification of 44 was placed on the support. (Ethanol soluble 1 liter ingredient 97%.

A 7-layer dioxane solution (the degree of esterification was determined from the E-R spectrum) was spin-coated using a Whaler and dried at 60°C for 16 minutes to form a 27/l photosensitive layer.

After spin-coating γ-aminopropyl (manufactured by Chitsun ■: A0800) 05 heavy weight Itsunokuichi E (manufactured by Exxon Chemical) m solution with a Whaler, 1
Dry at 20'C for 30 seconds. This” second (7) &
11 composition of silicone composition with 7% Isopar E
After spin coating the foil liquid with Whaler, 120℃, Dr30 4
Cured by heating for 1 minute. The thickness of the silicone rubber layer obtained in this case is 2. It was 2/I.

(a) 10 parts of dimethylbolysilogyzan (molecular weight approximately 80,000, terminal O H group) (b
) Vinyl, tris(ethylmethyltatoginum) silane 6 parts (C) Dibutyltin cyacetate-1.02 parts 5cm using master printer A3)
With the UV meter of Example 1 at a distance of 2,5 rn W
The entire surface was illuminated for 10 seconds at an illuminance of /cm'. This exposure amount corresponds to one photodecomposition of 15 moles of quinonediazide in the photosensitive layer, which was determined in advance from a calibration curve.

The 150 particles randomly deposited on the image forming laminate that had been converted into a specific amount of quinone diacid total carboxylic acid in this way
Ultra-high pressure mercury power 1 (Oak Manufacturing Co., Ltd. Shetztry l-, 2kV
/)i, image exposure was performed for 70 seconds from a distance ttill of 1 +rI.

Next, the development pad and the exposed area were treated with a base-containing developer (Isopar E/equonol/water/2-amino-2-methyl-1,
5-propanediol (35/65/105 weight ratio), and after the area where only the entire surface is exposed turns brown, lightly rub the plate surface with a developing pad dampened with developer. Then, in the image-exposed area, the silicone rubber layer and photosensitive layer are easily removed and the surface of the support is exposed, while in the area where only the entire surface is exposed, the silicone rubber layer and photosensitive layer remain firm, and the negative film is removed. A printing plate with an image faithfully reproduced was obtained.

Example 12 Thickness 0. A phenol formaldehyde novolac resin with a degree of esterification of 44% (manufactured by Sumitomo Bakelite;
A dioxane solution of 10% by weight of SUMILITE RESIN PR50235)/l-quinone-1,2-diazido-5-sulfonic acid ester was applied.

It was dried in hot air at 60'C to form a photosensitive layer with a thickness of 3μ. On top of this, 1 of a silicone rubber composition having the following composition:
0 layers stacked l] - Apply hexane solution, 120'0,D
P3D Heat cured in hot air for 4 minutes, thickness 2, 5
/4 silicone rubber layer (a) Nmethino E Poly 10 Gizan (molecular weight 30,000 terminal hydroxyl group) 100 parts 0))
Medyltriacetoginsilane 6 parts (c) Dibutyltin acetate 02 parts (d.) γ-aminoprobyltrimethogyzo/ran o.
5 jli (o) cyphtoxy, bis(ethyl acetate) titanium 6 parts 4 laminate for image formation obtained as described in 2. :+ It
-Using Mizubutsuki (Genotri I, 2kW manufactured by Oak Seisakusho).

Image exposure was carried out for 60 seconds from 1 m of distance.

The exposed plate was made using 65 parts of ethanol/Izbar G35.
Sound IS/Water part/Wet the plate surface with a developer consisting of 2 parts of monoethanol-amine 0, and rub it lightly with a developer pad.
The image-exposed area is easily removed and the rubber layer of the substrate is exposed. On the other hand, the silicone rubber layer remained firmly in the unexposed areas, and a printing plate that faithfully reproduced the negative film was obtained.

Example 1 A composite substrate in which a nitrile rubber layer with a thickness of 0.25 mm and a rubber hardness (Shore A) of 70 was provided on a polyester film (Lumirror, manufactured by Toshi ■) with a thickness of 0.2 mm.
Phenol formaldehyde novolac resin with esterification degree of 44% (manufactured by Sumitomo Bakelite; Sumitoreshin P
R50235) naphthoquinone-1,2-diazide-5
- Sulfonic acid ester (ethanol-soluble component 97% by weight, degree of esterification 7% by weight)
, and dried for 6 minutes to form a 27 μm photosensitive layer. 05 weight ratio isopar E of γ-aminopropyl trime I/gishisilane (manufactured by Chisso ■; A 0800)
(Manufactured by Esso Chemical) After spin-coating the solution with Whaler, 120
Dry for 130 seconds at °C. On top of this, a 7-Isopar E solution of a silicone composition having the following composition was spin-coated using a Whaler, and then cured by heating at 120 DEG O, D, P, 3[]04 minutes. The thickness of the silicone rubber layer obtained in this case was 2.
It was 27+.

(a) 100 parts of dimethylpolysiloxane (molecular weight less than about 80,000 011 groups) (b
) 5 parts of ethyl diacetate (C) 2 parts of dibutyltin diacetate A metal halide lamp (Iwasaki Electric Co., Ltd.
11 m W/cm using the UV meter used in Example 1 at a distance of 1 m.
The entire surface was exposed for 9 seconds at an illuminance of 2. Next, A air-tight 1
Image exposure was carried out for 9 [] seconds from a distance of 11 nm using a notar halide lamp through a negative film having halftone images of 00 lines/inch.

The entire surface exposed and image-exposed plate was developed in the same manner as in Example 12 to obtain a printing plate with a good image.

Example 14 On an aluminum plate with a thickness of 0.3 + nm,
The following photosensitive composition was applied onto a composite substrate provided with a chloroprene rubber layer having a rubber hardness of 160 (Shore A).

A photosensitive layer having a thickness of 2 μm was formed by heat treatment at 120° C. for 2 minutes.

Partial ester of naphthoquino/-1,2-diazide-5-sulfonic acid and phenol formaldehyde novolac resin (degree of esterification 47 by Engineering R method) 100 parts by weight Poly(phenylene methylene) Polyison-A-1 (MR200 manufactured by Nippon Polyurethane) ) 30 parts by weight dibutynotin dilaurate 02 parts by weight dioxane 740 parts by weight i
After spin-coating a silicone rubber composition with the following composition on the lt part & R lever, heat curing at 120'C, dew point 30, for 2 minutes to provide a 2μ silicone rubber layer to create a laminate for image formation. did.

Dimethylpolysiloxane (molecular weight approx. 25,000° terminal hydroxyl group) 100 parts by weight Vinyltris (methyl ethyl!・Kimu) Sila 7 8
parts by weight dibutyltin diacetate 02 parts by weight γ-[N-aminoethylaminepropyl]trimethoxysilane 1jlhi, parts Isopar E 18-00 tons; 1'L parts A metal halide lamp (manufactured by Iwasaki Electric Co., Ltd.) Fin 2000) fi: used, [J
V meter (6 Song Ok Ik Seisakusho Light Measure A Type U
V-402A) with an illumination intensity of 11 mW/cm2 for 16 seconds.

Continuing with the conventional method, pass the Jl! iL' Using a metal halide lamp, the distance n[1 to 7
Exposure was made for 5 seconds. Next, Nofbad (developing pad made by 3Mjl) was treated with a base treatment solution (Isopar H/Butyl Calpitol/Ethylseron Lube/Monoethanolamine-901).
51510,1 weight ratio) completely wet the surface of the plate. In about 1 minute, the area where only the entire surface was exposed becomes blackish brown. After that, remove the base treatment solution from one plate surface, thoroughly soak the developing solution (Aituba 11/phthyl calhitol/ethyl calpitol = 20/40/40 weight ratio) onto the developing pad, and then apply the developing pad to the plate surface. By rubbing, the imagewise exposed portions of the noricone rubber layer are removed and the surface of the photosensitive layer is exposed. On the other hand, in the area where only the entire surface was exposed, the silicone layer remains firmly adhered to the photosensitive layer.

The exposed photosensitive layer in the image exposure area is thus the image area.

The remaining silicone rubber layer in the area where only the entire surface was exposed becomes the non-image area. A printed version that faithfully reproduced the image of Lee Gafeilum was published.

Example 15 In Example 1, after the entire surface was exposed to light using a metal halide lamp, the photosensitive composition was applied and heat treated.

That is, before applying the silicone rubber layer to this "-", after applying the silicone rubber layer, 1;
The laminate for image formation was subjected to image exposure using a horn film in the same manner as in Example 1, and a good image with no change was obtained even after being subjected to base treatment and phenomenon. The printed version is a samurai.

Actual Tm Example 16 A polypropylene film (thickness 8μ) was laminated with a laminator to the HFC image forming laminate obtained in Example 1 as a cover film for plate protection and vacuum adhesion.
1. Do it. After that, from this film, the entire surface exposure and one image exposure were performed as described in Example 1, or conversely, the image exposure and the entire surface exposure were performed in the order, and then the film was peeled off, and Example 117",=U2 Even if I did the base treatment and development as described in 7:I: No printing.

A printing plate with a good image was obtained.

Example 17 (A) Chemical conversion treated aluminum plate (f,,l Yuyu i1i'it
Made of metal) with a degree of esterification of 44 levels of phenol porn\albuhiranoborasoc resin (Sumilight resin P T <
502'S 5. .

Naphthoquinone-1,2-diazide (manufactured by Sumitomo Turez)
Consisting of 7 parts of 5-sulfonic acid ester + chlorinated ``'')-/ropylene (Super Chron Ro 06'', manufactured by Sanyo Kokusaku Pulp), 3 gB, and 133 parts of dioxane. A photosensitive layer with a thickness of 2.81 t was formed by dry-smoking at a temperature of 6.00 mm.
After spin-coating the 02-layer M Aituba F (manufactured by Esso Chemical) R7 liquid using a Whaler.

It was dried at 110'G for 1 minute. A 7% by weight Isopar E solution of a silicone composition having the following composition was spin-coated onto this using a Whaler, and cured by heating at 100° for 0.2 minutes.

The thickness of the silicone rubber layer obtained in this case was 22μ.

(a) Dimethylboria 0xane 100 parts (molecular weight 80.00 mm, terminal OH group) (b) Ethyltriacetoxysilane 5 parts (c) -) Butyltin cyacetate-1.
Part 02 The image forming laminate obtained in the above manner was treated with a 7-kil halide lamp C Iwasaki Denkibin 3 Idol Fin 2000) f, and with a 1 m distance 1 and the UV meter used in Example 1. The entire surface was exposed for 5 seconds at an illumination intensity of m W/cm'. Next, this entire surface of the exposed image forming laminate was irradiated for 60 seconds from a distance of 11 m using a metal halide lamp through a film having halftone dot images of 1/inch and 1/inch. .

The plate surface was coated with ethanol/Aitsuba E/benzylamine (5
/5/0.5) After immersing it in the mixed solution, the area exposed entirely to light turned brown and then being rubbed lightly with a developing pad, the silicone rubber layer in the image-exposed area was removed and the surface of the photosensitive layer was exposed.

On the other hand, the silicone rubber layer remained firmly in the area where only the entire surface was exposed, and an image that faithfully reproduced the 4 gun ilm was obtained.

Example 18 Phenol formaldehyde resol tit resin (Sumilight Resin PC-1, manufactured by Sumitomo Durez) 'E 2 was applied to an aluminum plate with a thickness of 0.24 mm (T1: manufactured by Tomo Keiki Metals).
Coat to a thickness of /-' and cure for 0.3 minutes at 190' as a support. A photosensitive layer having a thickness of 271 cm was formed by heat treatment.

Leaft ~'Non-1,2-diazide-5-sulfonic acid and phenol formaldehyde novorasoc resin 1j
Degree of esterification by li minute ester C/R method: 47)
100, 'i'lB 811 parts 4.4'-phenylmethane diisocyan-r-30 11' L parts dibutyltinlaurate 02 parts p-toluenesulfonic acid 08 parts dioxa 7 740 parts H A silicone rubber composition having the composition shown below was spin-coated on the substrates and D, and then heated and cured for 5 minutes at a dew point of 12D'c to form a silicone rubber layer of 2 .mu.m to form a laminate for forming one image.

Dinotylpolysilokylene (molecular weight approximately 25.0[]t
ll.

Suehiro 1 hydroxyl group) 100 parts by weight vinyl tris C notyl ethyl ketoquinone,] Shira 7 8
1W dibutyltin thiacetate 1.01 γ-aminopropyltritoxysilane 05 heavy Isopar B: (manufactured by Exxon Chemical) 1800 parts by weight Yusaki", using (idle fin 2000 manufactured by (Kitun)),
11 mW/cm' with a UV meter ((Song Oak Seisakusho Uitomejaa Type Uv-402A) at a distance of 11 nm.
The entire surface was exposed for 10 seconds at an illuminance of .

Thereafter, as a cover film, a 16 μm thick propylene film (manufactured by Toshiki) was laminated onto the plate surface.

I continued to apply the cover film - Makaho 1111
vinegar.

Apply vacuum contact 1 (150 lines/inch dot image) and expose the image for 60 seconds from a distance of 1 m using metal halide film through 1 film. 31 Then peel off the cover film and apply soft patch (3) ℃・1 made in the base treatment solution of Example 1. When the plate surface is colored brown in image form, wipe off the base treatment solution from the plate surface and add developer solution (Isopar H/Butyl Calpitol/Ethyl Calpitol/Ethyl Calpitol/
2-Ethyl key phosphoric acid/crystal violet 1.2
0/40/40/2102 When the plate surface was lightly rubbed using a heavy weight, the silicone rubber layer in the imagewise exposed areas was removed.

The surface of the photosensitive layer dyed purple was exposed. -Power.

The silicone layer V in the area exposed only to the entire surface was not dyed and remained strongly adhered. The printing plate obtained by washing and drying the printing plate in the usual manner faithfully reproduces the burr film and clearly distinguishes between the non-image area (unstained) and the image area (dyed). It was in good condition. Note that the dyeing of the image area does not have to be done at the same time as development.
That is, even if it is developed with the developer used in Example 1 and then dyed with a staining solution (carpitol acetate/ethylene glycol/crystal violets) (weight ratio: 30/70/3), no change occurs. There is no place.

Example 19 The image-forming laminate obtained in Example 1 was subjected to full-surface exposure and image exposure through a negative film in the same manner as in Example 1, and the obtained plate was subjected to development exposure with a base as shown in the following table. When the obtained plate was developed with the base-containing developer shown in the table below,
A printing plate with a good to moderate image was obtained.

Example 20 Rubber hardness 1i7D N B with a thickness of 300μ on a 200μ thick “Lumirror” (polyester film made of bundled material)
A composite substrate provided with an R layer was used as a support, and naphthoquinonediazide-1,2-diazide of phenol formaldehyde novolak resin (Sumilight Resin PR502, manufactured by Sumitomo Durez) with an esterification degree of 50 tI was placed on the composite substrate as a support.
A solution of 5-sulfonic acid ester in 4-propyl oxane was spin-coated with a whirlpool.

It was dried at 100°0 for 2 minutes to provide a photosensitive layer with a thickness of 2 g/m'.

Next, a 2.8 weight percent Isopar E (manufactured by Exxon Chemical) solution of di-n-butoxyObis(acetylacetonate) titanium was applied to this soil using a Hercoater, and then 120'C
, dry for 1 minute to form an adhesive layer with a thickness of 0.1 g/m'' fc.

Furthermore, a silicone rubber composition having the following composition was coated on the second part of this adhesive layer using wheal, and then heated and cured at 120° C. and a dew point of 304 minutes to provide a silicone rubber layer having a thickness of 2.5 g/m'.

(a) Dimethylpolysiloxane 100 parts (molecular weight approximately 22,000. Hydroxyl groups at both ends) (b) Ethyl!・Diacetoxysilane/methyltriacetoxysilane (1/1
Mixture) 6 parts (C) Dibutyltin diacetate) 0.1
2 parts (d) Isopar E 1 70 parts The image-forming laminate obtained as described above was coated with ultra-high pressure water steel (2kW manufactured by Oak Seisakusho) from a distance of 1 m. 11 on UV meter
Exposure was performed for 90 seconds through a 100-line negative film sealed in vacuum at an illuminance of m W/cm'. Azo L ethanol/isopar E/7-ethanolamine (
65/RO 510.5), the plate surface changes to blackish brown in one image, and then rubbed lightly with a developing bat, the silicone rubber layer in the exposed area of one image is removed along with the photosensitive layer.
t, the surface of the composite substrate was exposed, and a printing plate with an image faithful to the original film was created.

When direct printing was performed using this printing plate, 20,000 good prints were obtained.

Example 21 A resol resin (Sumilight Resin PC-1. manufactured by Sumitomo Durez) was applied to a 024-thick aluminum plate (manufactured by Sumitomo Light Metals) to a thickness of ig/m' and cured at 190°a for 1.5 minutes. and used as a support.

A dioxane solution of 1.4 weight percent of naphthoquinone-1,2-diazide-5-sulfonic acid ester of phenol formaldehyde novolac resin was spin-coated onto this support using a wheal, and dried at 100°C for 2 minutes to a thickness of 0. 5g/
m' photosensitive layer was provided.

Subsequently, a silicone rubber composition having the composition shown below was applied thereto using a bar coater, and then coated at 120°0. The silicone rubber layer was cured by heating at a dew point of 60'C for 4 minutes to form a silicone rubber layer with a thickness of 2 mm/ml.

(,) Dimethylpolysiloxane (molecular weight approximately 22,00
0 both terminal hydroxyl groups) 100 parts (b) Hinyltos(methyl ethyl ketoxime) sila 7 8 parts (c) Dibutyltin diacetate 01 parts (d) Ciso-10 boxy bis(acetylacetonato) titanium 49 parts (e) Isopar ,, 360 copies of the image-forming laminate obtained as described above were vacuum-adhered with a metal halide lamp (Iwasaki'i11. 60 from a distance of 11n using idle fin 2000)
Second exposure. Furthermore, this image-exposed laminate was heated at 11 mW/W on the printing plate using the same lamp as the UV meter used in Example 1.
The entire surface was exposed for 10 seconds at an illuminance of cm'.

Next, a base-containing developer (Isopar 1ij/butylcarpitol/monoethanolamine-40/60/1
The silicone layer and the photosensitive layer in the exposed areas of both images are removed by immersing the plate in 100% water and lightly rubbing it with a developing pad.A printing plate that faithfully reproduces the image of the negative film with the exposed surface of the support is obtained. Ta.

Example 22 As described in Example 1. naphthoquinone-1,2--)
7 Cyto-5-sulfonic acid tophenolpormaldehyde Novolac resin partial Nisdel and 4,4'-diphenylmethane isocyanate M Its' J-The same image forming laminate shown below is prepared. It was done.

When this image-forming laminate was also entirely exposed to light in the same manner as in Example 1, and then subjected to image exposure, base treatment and development, a printing plate with an image faithful to the negative film was obtained.

Example 2 A negative film having a halftone image of 150 lines/inch was vacuum-adhered to the image-forming laminate produced as described in Example 1 in accordance with a conventional method.

The metal halide lamp used in Example 1 was used at a distance of 1 m, and the flUV meter used in Example 1 was used at a distance of 11 mW/c.
Exposure was performed for 60 seconds at an illuminance of m'. Due to this exposure, 95 moles of quinonediazide in the image area photosensitive layer was photodecomposed. Next, this plate was immersed in a base-containing developer consisting of Isopar I/phthyl carbitol/monoethanolamine-40/60/1 (weight ratio), and rubbed lightly with a developing pad to remove the silicone rubber layer in the exposed areas. It is removed to expose the surface of the photosensitive layer, resulting in a printing plate that is faithful to the original film.

Example 24 150+% in the image forming laminate obtained in Example 7! /
Negative film with a halftone image of inches.

The UV light used in Example 1 was applied at a distance of 1 m using the metal halide lamp used in Example 1 after vacuum contact according to a conventional method.
Light was applied using a meter at an illuminance of 11 mW/x2 for 6°. Due to such exposure, most of the quinonediazide in the photosensitive layer in the image area was photodecomposed. Subsequently, this plate was immersed in a base-containing developer consisting of ethanol/monoethanolamine-9[]/10 (weight ratio).

When lightly rubbed with a development pad, the silicone rubber layer and photosensitive layer in the exposed areas were removed, exposing the aluminum surface. The printing plate thus obtained uses an image that faithfully reproduces the Fuganoilm, and can produce good printed matter in lithographic printing without using dampening water.

[Brief explanation of drawings]

Figure 1 shows the image forming laminate, Figures 2, 6 and 4.
The figure is an example of a schematic diagram showing the procedure for making a waterless lithographic printing plate from a laminate for image formation. This is an example of outline N showing the procedure for plate making. 1: Laminated body for image formation 2: Non-gauge type lithographic printing plate that does not require dampening water 5: Positive type lithographic printing plate that does not require dampening water 1st Figure 2121 3rd Do 1 5th L Ya 1

Claims (1)

[Claims] An image forming laminate comprising a support, a photosensitive layer comprising a substance containing a quinone azide structure and a silicone rubber layer provided in this order on a support, imagewise exposed and base treated. Processing method.