JP2000319607A - Aqueous easily adhesive polyester film and silver chloride photo sensitive material, planography plate, and ink-jet recording material utilizing it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film of excellent adhesion with a water-soluble polymer when various water-soluble polymers are coated by setting a primer contg. a resin emulsion having a hydrolytic silyl group and an isocyanate crosslinking agent on a polyester film. SOLUTION: This isocyanate crosslinking agent is pref. a self-emulsifying isocyanate crosslinking agent having an ethylene oxide repeating unit and not less than two isocyanate group, and the isocyanate crosslinking agent is pref. a block isocyanate crosslinking agent. As a pref. example of the block isocyanate crosslinking agent, a water-soluble block isocyanate with an isocyanate group protected by a bisulfite salt can be mentioned. It is appropriate to set further a second primer contg. a water-soluble polymer and a crosslinking agent to crosslink the polymer on the primer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polyester film excellent in adhesiveness to a water-based coating layer suitable for water-based coating, and more specifically to a silver halide photographic material and a lithographic printing plate using the same. It belongs to a polyester film support used for ink jet recording materials, anti-fog films, magnetic recording materials and the like.

[0002]

2. Description of the Related Art The polyester film according to the present invention refers to a film on which polyethylene terephthalate, polyethylene naphthalate or the like is formed. The polyester film surface is generally hydrophobic, and when an aqueous coating solution containing various water-soluble polymers as a binder is applied to the polyester surface as it is, the adhesion between the water-soluble polymer and the polyester surface is insufficient, and the film is peeled off at the interface. Or the surface of the binder layer may be easily peeled off from the polyester support by rubbing the surface.

[0003] In order to improve the adhesion of a polyester support surface to a hydrophilic binder, various undercoat layers are widely provided on the polyester support surface. For example, JP-A-56-140343 discloses styrene
Examples of an undercoat layer using a butadiene-based latex are given, and JP-A-63-304249 and JP-A-64-538 disclose an undercoat layer using a vinylidene chloride latex. When a layer containing gelatin or the like as a binder is provided by using a polyester support provided with an undercoat layer made of such a hydrophobic latex, the adhesion to the support is improved but not sufficient due to the presence of the undercoat layer. There was a case.

[0004] In the above-described undercoating with a single layer structure, it is often difficult to increase the level of adhesiveness to a sufficiently satisfactory level, and a hydrophilic resin is further added to the undercoating layer of the hydrophobic latex. The study of two-layer undercoating in which an undercoat layer made of is laminated has been widely studied. For example, JP
JP-A-3-67787 discloses a two-layer structure in which a polyvinylidene chloride latex layer is provided on the first layer, and a cellulose ester layer is provided thereon. There is disclosed a two-layer undercoating structure in which a water-soluble polymer layer such as gelatin is provided on the first layer of polyvinyl chloride.

However, even in such a two-layer undercoating structure, a heat treatment may be required at a high temperature of about one hundred and several tens of degrees Celsius after the undercoating application in order to develop the adhesiveness. Heat shrinkage and dimensional stability may be adversely affected.

On the other hand, Japanese Patent Application Laid-Open No. 9-175509 discloses an example of an undercoating agent comprising a polyisocyanate and a solvent-soluble resin such as a polyester resin as an easy-adhesion process for a polyester film surface using an isocyanate-based crosslinking agent. However, since a solvent-soluble resin with low affinity for water is used as the undercoating agent, when a water-soluble polymer is applied on a film that has been subbed with such an undercoating agent, the adhesive Was still inadequate.

A silver halide photographic light-sensitive material and a lithographic printing plate have been manufactured using the undercoat film prepared by the above-mentioned prior art, but the adhesion to the film is still insufficient, and In some cases, problems such as peeling of the film during printing or during printing or poor printing durability may occur. In particular, when a silver halide photographic light-sensitive material is prepared, it is immersed in a highly alkaline aqueous solution as a development processing condition, and further dried through an acidic fixing solution containing acetic acid or the like. When the adhesiveness of the photographic photosensitive layer is insufficient, there is a case where a problem such as a defect of an image occurs due to swelling or peeling of the photosensitive layer coating. In addition, there were cases where the change in photographic characteristics due to storage aging was affected.

A lithographic printing plate utilizing a silver salt diffusion transfer system (DTR method) using silver halide, particularly a lithographic printing plate having a physical development nucleus on a silver halide emulsion layer is disclosed in, for example, US Pat. Nos. 728, 114 and 4,134, 7
No. 69, No. 4,160,670, No. 4,336,
No. 321, No. 4,501, 811 and No. 4,51
No. 0,228, 4,621,041 and the like.
Chemically developed by development to form black silver and form hydrophilic non-image areas, while unexposed silver halide crystals are converted into silver salt complexes by the silver salt complexing agent in the developing solution, and physical surface It diffuses into the development nucleus and causes physical development to form an image portion mainly composed of physical developed silver having ink receptivity.

As described above, in the lithographic printing plate, the surface is covered with the binder mainly composed of gelatin, and the offset printing is performed by transferring the ink only to the portion where the physically developed silver is precipitated on the binder surface. However, if the adhesion to the polyester film support is insufficient, the image area may be missing from the support due to mechanical abrasion during printing or penetration of the solvent in the ink, etc. However, there was a problem that the temperature gradually decreased.

In the case of an ink jet recording material using a polyester film as a support, the adhesion between the ink receiving layer applied to the surface on which ink jet recording is performed and the polyester support may be insufficient. There have been problems such as the ink receiving layer peeling off the support when water drops fall.

[0011]

SUMMARY OF THE INVENTION An object of the present invention is to provide a polyester film having excellent adhesion to a water-soluble polymer when various water-soluble polymers are applied.
Specific examples of applications containing a water-soluble polymer include silver halide photographic light-sensitive materials and lithographic printing plates using the same, and ink-jet recording materials using a polyester as a support. The problem is to improve the adhesiveness with the adhesive. Further, the present invention is intended to improve the characteristic fluctuation of the photographic light-sensitive material over time, the printability of a lithographic printing plate, and the change of print density of an ink jet recording material.

[0012]

The above objects are achieved by the present invention described below. That is, by providing an undercoat layer containing a resin emulsion having a hydrolyzable silyl group and an isocyanate-based cross-linking agent on a polyester film, the problem of the present invention can be solved.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The above-mentioned resin emulsion having a hydrolyzable silyl group is described in, for example, JP-A-61-9463.
JP, JP-A-5-25354, JP-A-10-2
As described in JP-A-92023, US Pat. Nos. 5,306,765 and 5,712,340, for example, a vinyl monomer having a hydrolyzable silyl group such as an alkoxysilyl group is emulsified. Polymerization is carried out by a method such as polymerization, and refers to those dispersed in the form of a stable emulsion in water.Since the silyl groups in the dispersed state are present in the emulsion, they are blocked from water, so that they are free from hydrolysis. The feature is that there is. However, when a coating film is formed, the emulsion breaks and the silyl groups come into contact with moisture, so that hydrolysis proceeds and silanol groups are generated. The silanol groups form a crosslinked structure by self-condensation, and the present invention is characterized in that the silanol groups are bonded to each other by a crosslinking agent having an isocyanate group described later.

The hydrolyzable silyl group includes alkoxysilyl, thioalkoxysilyl, halogenosilyl, acyloxysilyl, amidosilyl, aminoxysilyl, alkenyloxysilyl, aminosilyl, oximusilyl and the like. However, among these, an alkoxysilyl group is particularly preferred.

When a monomer or oligomer having a polymerizable double bond and a hydrolyzable silyl group is used as one method of synthesizing a resin emulsion having a hydrolyzable silyl group, for example, vinylsilane may be used as vinyl silane. Examples include methyldimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris (β-methoxyethoxy) silane, and the like, as (meth) acryloxyalkylsilanes, γ-methacryloxypropyltrimethoxysilane, γ-methacryloxypropyl Methyldimethoxysilane, γ-acryloxypropyltrimethoxysilane and the like can be mentioned. Further, examples of the oligomer include urethane-based oligomers having a vinyl group and an alkoxysilyl group, polyether-based oligomers, polyester-based oligomers, and polyamide-based oligomers described in JP-A-60-26022.

When undercoating is performed on the surface of a polyester film using the above resin emulsion having a hydrolyzable silyl group alone, as described in Examples described later, the undercoat film is When used for application of a water-based coating agent, sufficient adhesive strength was not obtained, and it was recognized that the water-based coating layer was easily peeled from the film support. However, by using an isocyanate-based crosslinking agent together with such a resin emulsion having a hydrolyzable silyl group, when used as an undercoating agent, such an undercoating film is extremely good for various water-based coating agents. Has been found to exhibit excellent adhesion,
The present invention has been reached.

Here, the isocyanate-based crosslinking agent refers to a compound having at least two or more isocyanate groups in a molecule, and includes hexamethylene diisocyanate, tetramethylene diisocyanate, dodecamethylene diisocyanate, isophorone diisocyanate, 1,3-phenylene diisocyanate, Compounds such as tolylene 2,4-diisocyanate and tolylene 2,6-diisocyanate are exemplified. When used with a resin emulsion having a silyl group as an undercoating agent, solubility in water, high reactivity and undercoating are used. From the viewpoint of maintaining the pot life as a coating liquid, the self-emulsifiable isocyanate crosslinking agent and the blocked isocyanate described below are very preferable examples of the isocyanate crosslinking agent.

As the self-emulsifiable isocyanate, a self-emulsifiable isocyanate crosslinking agent having an ethylene oxide repeating unit and two or more isocyanate groups is described, for example, in JP-B-55-7472 (US Pat.
No. 6,154), JP-A-5-222150 (US Pat. No. 5,252,696), JP-A-9-71720,
Refers to self-emulsifying isocyanates as described in JP-A-9-328654 and JP-A-10-60073. Specifically, for example, a polyisocyanate having an isocyanurate structure of a cyclic trimer skeleton formed from an aliphatic or alicyclic diisocyanate in the molecule, a polyisocyanate having a buret structure, a urethane structure, or the like in the molecule. Base polyisocyanate,
A very preferable example is a polyisocyanate compound having a structure obtained by adding polyethylene glycol or the like etherified at one end to only a part of the polyisocyanate group. The method for synthesizing the isocyanate crosslinking agent having such a structure is described in the above specification. As a specific example of such an isocyanate cross-linking agent, a product in which a polyisocyanate obtained by cyclic trimerization using hexamethylene diisocyanate or the like as a starting material is used as a base polyisocyanate, for example, Asahi Kasei Kogyo Co., Ltd. WX
It is available under a name such as 1741.

The above-mentioned isocyanate crosslinking agent has an ethylene oxide repeating unit directly bonded to a hydrophobic base polyisocyanate, so that an emulsion in which a polyisocyanate portion is separated from an aqueous layer in water is formed. The oxide portion has a self-emulsifying function for stabilizing the dispersion of the emulsion. For this reason, isocyanate groups, which are originally deactivated by reacting with water, continue to be stably present in water. In the process of forming a film, there is an advantage that the emulsion state is rapidly destroyed in the process of forming the film, and the emulsion is diffused into the film, whereby the crosslinking reaction proceeds rapidly.

In the present invention, by using the above resin emulsion having a hydrolyzable silyl group and a self-emulsifying isocyanate crosslinking agent in an undercoat layer of a polyester film, various water-based coating liquids are applied thereto. It has been found that when this is done, very good adhesion is provided. In the present invention, the use of a self-emulsifiable isocyanate is characterized by being rapidly cured at room temperature without heat treatment, and the most important feature is not only to provide a water-resistant cured film, It is characterized in that an undercoat layer that adheres well to the polyester film is provided on the polyester film, and that the surface of the undercoat layer exhibits good adhesion to various water-soluble resins. This is due to the fact that, in addition to the resin emulsion having a silyl group, the structural characteristics of the isocyanate cross-linking agent are exhibited, and the function of both is combined to exhibit the effect as the undercoating agent.

The self-emulsifying isocyanate crosslinking agent according to the present invention has both a hydrophobic part and a hydrophilic part in its structure, so that it has an affinity for a hydrophobic polyester support and a hydrophilic water-soluble polymer film. It is characterized by having both of the affinity with the compound, and expressing good adhesiveness at the interface between the two. Furthermore, when used in combination with a resin emulsion having a hydrolyzable silyl group, the isocyanate group effectively crosslinks the silanol group generated by hydrolysis, forming a strong crosslinked structure and hydrophilicity due to the remaining silanol group. Of the present invention is that the undercoating film having good adhesion to the water-based coating layer intended for the present invention is formed by combining the expression of It is a feature of.

In the above-mentioned self-emulsifying isocyanate, the number of repeating units of ethylene oxide is preferably about 5 to 50. If it is less than this, it is difficult to exhibit stable emulsifiability in an aqueous solution due to poor self-emulsifiability, and if it has 50 or more repeating units, it tends to crystallize and become solid, which is not preferable. Further, the isocyanate content in the self-emulsifying isocyanate is preferably in the range of 8 to 25% by weight.

The ratio of the resin emulsion having a hydrolyzable silyl group to the isocyanate-based cross-linking agent is particularly preferably 1 to 50 parts per 100 parts of the resin emulsion. If the ratio is less than this, the effect of adding the isocyanate-based cross-linking agent is hardly exhibited, which may be undesirable. When 50 parts or more of the isocyanate-based crosslinking agent is added, the pot life of the undercoat coating liquid may be shortened. A particularly preferred range is from 5 to 30 parts.

By using a cross-linking agent having a free isocyanate group which is not blocked, such as a self-emulsifying isocyanate, a water-resistant and easily-adhesive layer is formed on the surface of the polyester film without heat treatment. This is a feature of the present invention, but the fact that the undercoating process can be performed without performing such heat treatment has a great advantage particularly when the undercoating process is performed in the off-line coating. That is, the polyester film that has already been formed is subjected to an undercoating process using an off-line coater, but when an amine imide compound or a blocked isocyanate compound that cures by heating is used, high-temperature heat drying is required during coating and drying. Although post-curing must be performed after coating, the configuration of the present invention is extremely advantageous because the post-curing is unnecessary regardless of the heating conditions.

Alternatively, the constitution of the present invention is extremely effective also in the case of an in-line coating in which the undercoating process is performed before, during or after the stretching when forming the polyester film. For example, even when the undercoating is performed in the middle of the longitudinal stretching process and then the film is laterally stretched, it is characterized in that the uniform undercoating can be performed without impairing the transparency of the film. It has been found that the adhesion to the polyester film surface is good, and that a uniform undercoat layer is formed following the elongation of the film. Further, the undercoat film formed by such in-line coating is coated with various aqueous coatings. It has been found out by the present invention that good adhesion is exhibited when an engineered layer is formed.

Under in-line coating conditions, transverse stretching, heat setting or heat relaxation is usually performed after undercoating, and under these conditions, high-temperature heat treatment is inevitably performed. In such a case, a less reactive isocyanate crosslinking agent can be used without using a self-emulsifying isocyanate. Although the reactivity is inferior to that of the self-emulsifiable isocyanate, another preferred embodiment according to the present invention comprises substituting a blocked isocyanate for the self-emulsifiable isocyanate with the resin emulsion having a hydrolyzable silyl group. To be used as an agent.

Preferred examples of the blocked isocyanate include a water-soluble blocked isocyanate in which an isocyanate group is protected by bisulfite. When this is used, it is effective only when heating of at least 100 ° C. or more is given as a heating temperature (drying temperature). In addition to the in-line coating conditions as well as the use in the off-line coating, it is preferable that such heating is applied, since almost the same performance can be obtained as when the self-emulsifiable isocyanate shown above is used. Further, from the viewpoint of the pot life of the coating solution, it is also preferable to provide a coating solution having good long-term storage stability.

In both the off-line coating and the in-line coating as described above, the preferred thickness of the undercoat layer is in the range of 0.01 to 5 microns, more preferably 0.01 to 5 microns. It is in the range of 1 micron. This is common to all the subbing configurations according to the present invention.

As the undercoating agent, it is also preferable to add various water-soluble polymers, latexes, emulsions and the like in addition to the resin emulsion and the isocyanate-based crosslinking agent. Examples of the water-soluble polymer are not particularly limited, but a water-soluble polymer having a functional group capable of crosslinking and water-resistant by an isocyanate group is particularly preferable. Examples of the functional group crosslinked by isocyanate include an amino group, a carboxyl group, and a hydroxyl group. Preferred examples of the water-soluble polymer containing such a functional group in a repeating unit include gelatin, polyvinyl alcohol, hydroxyethyl cellulose, and hydroxypropyl. cellulose,
Various natural polysaccharides such as carboxyethylcellulose, polyacrylic acid, polyvinylpyrrolidone-polyacrylic acid copolymer, and alginic acid (salt) (for example, from Dainippon Pharmaceutical Co., Ltd., seepe gum (carrageenans, glyloid (tamarind gum), guar gum, echo gum) (Commercially available under the names of xanthan gum), kelco gel (gellan gum), etc. Examples of latex and emulsion include polyvinylidene chloride-based latex and styrene-
Butadiene-based latex, styrene-acrylic-based latex, polyurethane-based emulsion, polyester-based emulsion, and the like. When such a water-soluble polymer, latex, emulsion or the like is added in the form of being mixed with the resin emulsion having a hydrolyzable silyl group and the isocyanate-based crosslinking agent, the ratio is 100 parts or less relative to 100 parts of the resin emulsion. Is particularly preferred. Further, for the purpose of preventing blocking or the like, inorganic fine particles such as silica or polymer beads having a particle diameter corresponding to the thickness of the undercoat layer (about the thickness of the undercoat layer to several times) are preferably added. The thickness of the undercoat layer is preferably formed in the range of 0.01 μm to 5 μm on the surface of the support. If the thickness is less than this, the effect of the undercoat layer hardly appears, and the thickness exceeds 5 μm. In the case where the film is formed to have a thickness, no improvement in the effect as the undercoat layer is recognized, and adverse effects such as worsening of the curl properties of the film may be observed.

Another preferred embodiment relating to the undercoat layer is a subbing first layer containing the resin emulsion and the isocyanate-based crosslinking agent described above, and a subbing layer containing at least a water-soluble polymer formed on the undercoat first layer. It is a polyester support having a two-layer subbing structure formed from two layers. In this case, it is preferable that various cross-linking agents are added in order to cross-link the water-soluble polymer such as gelatin constituting the undercoating second layer. Examples of the water-soluble polymer contained in the second undercoat layer include various natural polymers such as gelatin, polyvinyl alcohol, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxyethyl cellulose, polyacrylic acid, polyvinylpyrrolidone-polyacrylic acid copolymer, and alginic acid (salt). Polysaccharides (for example, from Dainippon Pharmaceutical Co., Ltd., seepe gum (carrageenans, glyloid (tamarind gum), guar gum, echo gum (xanthan gum), kelco gel (gellan gum))
Etc.). Further, as the cross-linking agent in this case, the above-mentioned isocyanate-based cross-linking agents are preferable, but other well-known cross-linking agents include formalin-based cross-linking agents, melamine-based cross-linking agents, epoxy-based cross-linking agents, triazine-based cross-linking agents, and aziridine-based cross-linking agents. A crosslinking agent and other various crosslinking agents can be preferably used.

Further, in addition to the above water-soluble polymer contained in the undercoating second layer, various latexes and emulsions such as polyvinylidene chloride-based latex, styrene-butadiene-based latex, styrene-acryl-based latex and polyurethane-based It is also preferable to add a latex or emulsion such as an emulsion or a polyester-based emulsion in an amount not exceeding twice the amount of the water-soluble polymer. When added in an amount exceeding this range, the hydrophilicity of the undercoating second layer may be reduced, and the adhesion at the interface when an aqueous coating layer is further provided may be reduced.

The thickness of each undercoat layer in the above-described two-layer undercoat structure is the same as that of the above-described single-layer undercoat. Usually, the most preferred undercoat layer thickness is 0.01
In the range of ~ 5 microns. By adopting such a two-layer undercoating structure, the adhesion between the various aqueous coating layers and the polyester support can be strengthened. Therefore, a polyester support having such a two-layer undercoating structure is used in advance. It is highly preferred to do so.

The polyester film having various undercoat layers described above can be used for forming a silver halide photographic material, a lithographic printing plate, and an ink jet recording material. Is particularly useful because of its excellent adhesion.

The silver halide used for the silver halide photographic light-sensitive material of the present invention or the silver halide emulsion of a lithographic printing plate is not particularly limited, but a surface latent image type silver halide emulsion is preferable. Silver chloride, silver chlorobromide, silver chloroiodobromide, silver iodobromide, silver bromide and the like can be used. When silver chloroiodobromide or silver bromoiodide is used, the content of silver iodide is preferably within a range of 5 mol% or less. The form, crystal habit, size distribution and the like of the silver halide grains are not particularly limited, but the grain diameter is preferably 0.7 μm or less. Silver halide emulsions include a gold compound such as chloroaurate and gold trichloride, a sulfur compound which forms silver sulfide by reacting with a salt or a silver salt of a noble metal such as rhodium and iridium, a stannous salt, Sensitivity can be increased without reducing particles with a reducing substance such as an amine. Further, iron compounds such as salts of noble metals such as rhodium and iridium, and red blood salts can be present during physical ripening or nucleation of silver halide grains.

In the present invention, the surface latent image type halide emulsion is an emulsion comprising silver halide grains having a surface sensitivity higher than the internal sensitivity, and this emulsion is preferably US Pat. No. 4,224,401. It has a difference between the surface sensitivity and the internal sensitivity specified in the specification. The silver halide emulsion is desirably monodispersed, particularly in the above-mentioned U.S. Pat.
Emulsions having the monodispersity specified in JP-A-224,401 are preferred. The silver halide emulsion used in the present invention preferably contains a water-soluble rhodium salt (for example, rhodium dichloride, rhodium trichloride, potassium hexachloride (III), ammonium hexachloride (III)). . The addition amount of the rhodium salt is preferably from 1.times.10@-7 mol to 1.times.10@-4 mol per mol of silver halide. The average grain size of the silver halide used in the present invention is preferably 0.7 μm or less, particularly preferably 0.1 to 0.5 μm.
It is in the range of 4 microns. The shape of silver halide grains may be regular such as cubic or octahedral, or may be such as a mixed crystal form, but has a relatively narrow grain size distribution.
It is preferably a so-called monodisperse emulsion. The term "monodisperse emulsion" as used herein means an emulsion in which 90%, more preferably 95%, of the total number of grains falls within a grain size range of ± 40% of the average grain size. The method of reacting a soluble silver salt with a soluble halide salt for preparing a silver halide emulsion in the present invention may be any of a single jet method, a double jet method, an inverse mixing method formed in excess of silver ions, and the like. Means may be used, but for the purpose of the present invention, a double jet method in which a soluble silver salt and a soluble halogen salt are simultaneously added in an acidic solution to form grains is particularly preferred. The silver halide emulsion prepared in this manner may or may not be chemically sensitized, and when chemically sensitized, ordinary silver sensitization, selenium sensitization, tellurium sensitization, reduction sensitization, etc. Is used.

The silver halide emulsion used in the present invention is:
It may be spectrally sensitized by a methine dye or the like. Dyes used include cyanine dyes, merocyanine dyes, complex cyanine dyes, complex merocyanine dyes, holopolar cyanine dyes, hemicyanine dyes, styryl dyes, and hemioxonol dyes. Particularly useful dyes are those belonging to the cyanine dyes, merocyanine dyes, and complex merocyanine dyes. These sensitizing dyes may be used alone or in combination. Combinations of sensitizing dyes are often used, especially for supersensitization. Along with the sensitizing dye, the emulsion may contain a dye that does not itself have spectral sensitization or a substance that does not substantially absorb visible light and that exhibits supersensitization.

In the silver halide photographic light-sensitive material of the present invention, a hydrazine compound may be contained in the silver halide emulsion layer, or a fresh aqueous colloid adjacent to the surface latent image type silver halide emulsion layer. It may contain a layer. Such a layer is a layer having any function, such as an undercoat layer, an intermediate layer, a filter layer, a protective layer, and an antihalation layer, as long as it does not prevent the hydrazine compound from diffusing into the silver halide grains. There may be. The content of the hydrazine compound in the layer depends on the characteristics of the silver halide emulsion used,
Since it depends on the chemical structure of the compound and the development conditions,
The appropriate content can vary over a wide range, but for the hydrazine compound, a range of about 1.times.10@-6 to 1.times.10@-2 mole per mole of silver in the surface latent image type silver halide emulsion is practically useful. It is. Further, together with the hydrazine compound, an amine compound or a phosphonium compound which is a high contrast accelerator can be contained in the emulsion layer or other layers.

When a hydrazine compound is contained in the silver halide emulsion layer, a conventional safelight dye may be added to the emulsion layer or another hydrophilic colloid layer. The photographic emulsion used in the present invention can contain various compounds for the purpose of preventing fog during the production process, storage or photographic processing of the photographic material, or stabilizing photographic performance. That is, azoles such as benzothiazolium salts, nitroimidazoles, nitrobenzimidazoles, chlorobenzimidazoles, mercaptothiazoles, mercaptobenzothiazoles, mercaptothiadiazoles, aminotriazoles, benzotriazoles, mercaptotetrazole Many compounds conventionally known as antifoggants or stabilizers, such as mercaptopyrimidines, mercaptotriazines, thioketo compounds, azeindenes, can be added. Among them, particularly preferred are benzotriazoles (for example, 5-methylbenzotriazoles).
And nitroindazoles (eg, 5-nitroindazole).

The silver halide photographic light-sensitive material of the present invention may be used as a silver halide emulsion layer, an intermediate layer, a protective layer, a backing layer, an undercoat layer of a lithographic printing plate, a silver halide emulsion layer or a back coat layer. As a possible binder or protective colloid, it is advantageous to use gelatin,
Other hydrophilic colloids can also be used. For example, gelatin derivatives, graft polymers of gelatin and other polymers, albumin, proteins such as casein, hydroxyethylcellulose, carboxymethylcellulose,
Cellulose derivatives such as cellulose sulfates, sugar derivatives such as sodium alginate, starch derivatives, polyvinyl alcohol, partial acetal of polyvinyl alcohol, poly-N-vinylpyrrolidone, polyacrylic acid, polymethacrylic acid, polyacramide, polyvinylimidazole, etc. And various kinds of synthetic hydrophilic high-molecular substances such as a single or copolymer. Examples of gelatin include lime-processed gelatin, acid-processed gelatin, Bull.
Soc. Sci. Photo. Japan, No. 16,
p. Enzyme-treated gelatin as described in No. 30 (1966) may be used, and hydrolysates or enzymatic degradation products of gelatin can also be used.

The photographic light-sensitive material of the present invention may contain an inorganic or organic hardener in the photographic emulsion layer and other hydrophilic colloid layers. For example, chromium salts (such as chrome alum), aldehydes (such as formaldehyde and glyoxal), N-methylol compounds, dioxane derivatives (such as 2,3-dihydroxydioxane), active vinyl compounds, and active halogen compounds (2,4-dichloro-6) −
Such as hydroxy-s-triazine) can be used alone or in combination. In the photosensitive silver halide emulsion layer or a layer adjacent thereto, Research Disclosure (Research Disclosure) 17 is used for the purpose of increasing sensitivity, increasing contrast, or promoting development.
No. 465, Sections XX} BD. Particularly, it is preferable to add polyethylene glycol or a derivative thereof.

The photographic light-sensitive material used in the present invention may contain a water-insoluble or hardly soluble synthetic polymer decomposition product in a photographic emulsion layer or other hydrophilic colloid layers for the purpose of improving dimensional stability. For example, alkyl (meth) acrylate, alkoxyalkyl (meth) acrylate, glycidyl (meth) acrylate, (meth) acrylamide, vinyl acetate, acrylonitrile, olefin, styrene or the like alone or in combination, or acrylic acid, methacrylic acid, α , Β-unsaturated dicarboxylic acid, hydroxyalkyl (meth) acrylate, styrenesulfonic acid and the like can be used as a monomer component.

In the lithographic printing plate of the present invention, the physical development nucleus layer present above the silver halide emulsion layer contains physical development nuclei. As physical development nuclei, silver, antimony, bismuth, cadmium, cobalt, nickel, lead, palladium, rhodium, gold, platinum and other metal fine particles, and sulfides, polysulfides, selenides of these metals, or those It may be a mixture or a mixed crystal. The physical development nucleus may not contain a hydrophilic binder, but various cellulose derivatives such as gelatin, starch, dialdehyde starch, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, gum arabic, sodium alginate, and other polysaccharide aqueous solutions Water-soluble polymer, polyacrylamide (and its copolymer), polyacrylic acid (and its copolymer), polyvinylpyrrolidone (and its copolymer), and various other synthetic water-soluble polymers. Content is 0.5g per square meter
It is preferably 3 g or less. Further, the physical development nucleus layer may contain a developing agent such as hydroquinone, methylhydroquinone, and catechol, formalin and other known hardeners.

Undercoat layer of lithographic printing plate according to the present invention (layer having antihalation function and cushioning function)
In addition, it is also preferable to add various hydrophobic latexes and emulsions as exemplified above in addition to gelatin. Further, pigments such as carbon black and various dyes are preferably added to prevent halation. Further, inorganic fine particles such as titanium oxide and silica may be added as a matting agent, and other various photographic additives may be included. Descriptions of such undercoat layers are described in JP-A-48-5503, JP-A-48-100203, and JP-A-49-100203.
-16507 and JP-A-5-80518.

The lithographic printing plate of the present invention may contain an inorganic or organic hardener in the undercoat layer, the emulsion layer, the physical development nucleus layer and other hydrophilic colloid layers. For example, chromium salts (such as chrome alum), aldehydes (such as formaldehyde and glyoxal), N-methylol compounds, dioxane derivatives (such as 2,3-dihydroxydioxane), active vinyl compounds, and active halogen compounds (such as 2,4
-Dichloro-6-hydroxy-s-triazine and the like can be used alone or in combination. The photosensitive silver halide emulsion layer or an adjacent layer may be provided with a Research Disclosure (Research Disc) for the purpose of increasing sensitivity, increasing contrast, or accelerating development.
loss) 17465, and the compounds described in Sections XXΙB to D can be added.

The lithographic printing plate according to the present invention may contain a water-insoluble or hardly soluble synthetic polymer dispersion in the undercoat layer, emulsion layer or other hydrophilic colloid layer for the purpose of improving dimensional stability. . For example, alkyl (meth) acrylate, alkoxyalkyl (meth) acrylate, glycidyl (meth) acrylate, (meth) acrylamide, vinyl acetate, acrylonitrile, olefin, styrene or the like alone or in combination, or acrylic acid, methacrylic acid, α , Β-unsaturated dicarboxylic acid, hydroxyalkyl (meth) acrylate,
A polymer having a combination of styrene sulfonic acid and the like as a monomer component can be used.

The ink jet recording material according to the present invention is an ink jet recording material having an ink receiving layer formed on a polyester film, and the ink receiving layer is not particularly limited. In particular, as an ink jet recording material using an aqueous ink, it is preferable to provide a layer containing an inorganic pigment such as various water-soluble polymers, alumina sol, and colloidal silica on a support as an ink receiving layer. For example, JP-A-55-51583 56-157, 56
No. 84992, No. 56-148583, No. 57-1
No. 4091, No. 59-35977, No. 61-1238
No. 8, No. 61-199980, No. 62-140878
No. 62-160274, JP-A-2-4308
No. 3, 6-340163, 6-340164,
6-555829, 6-0408016, 7-
242055, 7-266686, 9-323
No. 475, No. 10-119423, No. 11-0782
Various ink-receiving layers (ink-absorbing layers) described in, for example, Japanese Patent Application Laid-Open No. 14-314 can be preferably formed on the water-based easily-adhesive polyester film shown in the present invention.

The advantage of forming the various ink receiving layers on the polyester film as described above is that the adhesiveness between the various ink receiving layers and the polyester support is improved, and in particular, the water resistance is improved. It is a feature. Furthermore, since the surface of the polyester support has moderate hydrophilicity at the time of coating, it is also characterized as having good coating properties with few coating failures.

[0048]

EXAMPLES The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples as well as the effects. Parts in Examples are parts by weight.

Example 1 As a resin emulsion having a hydrolyzable silyl group on the surface of a polyethylene terephthalate film, Sunmol S
Using W-131 (manufactured by Sanyo Chemical Industry Co., Ltd.), WB40-80 (obtained from Asahi Kasei Corporation as Duranate WB40-80) as a self-emulsifying isocyanate, diluted to 80% concentration with a solvent Was used to prepare an undercoat coating solution with the following formulation.

Undercoat coating liquid formulation SW-131 (solid content 31% solution) 100 parts WB40-80 (solid content 80% solution) 4 parts Water 900 parts Surfactant 2 parts

The undercoating coating liquid prepared according to the above formula is applied by gravure coating onto a corona-treated polyester film so as to have an application amount of 0.5 g / m 2 in a dry state.
Drying was performed. The drying temperature is 70 ° C. and the drying time is 1
Minutes. The prepared sample was used as Sample 1. Similarly, a sample 2 was prepared in exactly the same manner except that a blocked isocyanate was used in place of the self-emulsifiable isocyanate (WB40-80) in the above undercoating liquid formulation.

For comparison, as shown in Table 1, comparative samples were prepared in which no crosslinking agent was added and in which various crosslinking agents other than the present invention were added. Samples were prepared under the same conditions such as coating and drying conditions.

[0053]

[Table 1]

In the above Table 1, 1) Elastron BN-44 (Daiichi Kogyo Seiyaku Co., Ltd.) was used as the blocked isocyanate. 2) As hexamethoxymethylolmelamine, Cymel 30 manufactured by Mitsui Cyanamid Co., Ltd.
0 was used. 3) Denacol EX-521 manufactured by Nagase Kasei Kogyo Co., Ltd. was used as an epoxy crosslinking agent. 4)
As vinylidene chloride latex, Asahi Kasei Industry Co., Ltd.
L536B was used.

Using the undercoated polyester film including the comparative sample prepared as described above, the performance as an aqueous adhesive film was evaluated. That is, a gelatin aqueous solution containing a crosslinking agent and a polyvinyl alcohol aqueous solution containing a crosslinking agent were used as model aqueous coating liquids, each of which was coated on the above-mentioned subbed polyester film so as to have a dry film thickness of 3 μm, dried, and adjusted to 40 ° C. After a heat treatment in a dryer for one day, the following adhesion test was performed. As a crosslinking agent in the gelatin aqueous solution, formalin was added at 2% by weight based on gelatin, and the drying temperature was 40 ° C.
I went in. As a crosslinking agent for polyvinyl alcohol, elastron BN-
44 (Daiichi Kogyo Seiyaku Co., Ltd.) was added at 10% by weight, and dried by heating at 130 ° C. for 30 minutes.

The following test was conducted as an adhesion test method. That is, a 1-cm square grid-like scratch is made on the surface coated with the above-mentioned gelatin and polyvinyl alcohol using a cutter knife, and immersed in a 3N sodium hydroxide aqueous solution (alkali adhesion test) and dimethylformamide for 10 minutes each. After that, the surface was strongly rubbed with absorbent cotton soaked in water to evaluate the adhesion to the support. When the surface layer was peeled off by rubbing the film surface, it was evaluated as x, when it was partially peeled off, it was evaluated as △, and when no peeling was observed, it was evaluated as ○. Tables 2 and 3 show the evaluation results. According to the results of Tables 2 and 3, in the adhesiveness to the support, the surface film of the comparative sample was easily peeled off in the alkaline aqueous solution, but the sample prepared in this example had good adhesiveness. Indicated.

[0057]

[Table 2]

[0058]

[Table 3]

Example 2 At the time of forming a polyester film, undercoating was performed in the longitudinal stretching step by in-line coating using the same undercoating liquid formulation as in Samples 1 and 2 prepared in Example 1 and Comparative Examples 1 to 4. The film was cooled after passing through transverse stretching and heat setting (heat relaxation), and a rolled-up film was prepared. Samples corresponding to Samples 1 and 2 of Example 1 are Samples 3 and 4, respectively, and Comparative Samples corresponding to Comparatives 1 to 4 are Comparative 5
８8. The undercoat layer on the film was coated so that the dry coating thickness was 0.1 μm. Using this undercoated polyester film support, the adhesion was evaluated in the same manner as in Example 1. The results are shown in Tables 4 and 5.

[0060]

[Table 4]

[0061]

[Table 5]

Example 3 At the time of forming a polyester film, undercoating was performed in the longitudinal stretching step by in-line coating using the same undercoating liquid formulation as that of Sample 3 prepared in Example 2 and Comparative Example 8, and the transverse stretching was performed. And heat fixation (heat relaxation)
And cooled to form a wound film. The undercoat layer on the film was coated to a dry coating thickness of 0.3 micron, and using this undercoated polyester film support, each of the undercoat second layers shown in Table 6 was coated thereon. A polyester support having a two-layer subbing configuration was prepared. Sample 1 is a sample obtained by applying the further undercoating according to Example 1 by an off-line coat, and Sample 3 is a sample subjected to Example 2
This is a sample obtained by applying the same undercoating by in-line coating. The two-layer undercoating was obtained by using Sample 3 and further applying a second undercoating layer shown in Table 6 on this surface.
To 14 represent a two-layer undercoat film. Further, Comparative Samples 9 and 10 were subjected to double-layer undercoating using Comparative Example 8 of Example 2. In any of the samples, the cross-linking agent added to the undercoat second layer was 10 to the undercoat second layer resin.
% By weight. The undercoating second layer was applied to a dry thickness of about 0.3 micron. The support obtained is further 1
A sample subjected to a heat treatment for 10 minutes in a dryer adjusted to 30 ° C. was also prepared. Thereafter, 2-hydroxy-4,6-dichloro-1,2 as a crosslinking agent was added to a 6% by weight aqueous gelatin solution.
The sodium salt of 3,5-triazine is added
The aqueous solution to which the weight% was added was applied so as to be 50 g per square meter, and dried in a dryer at 40 ° C. for 12 hours. The alkali adhesion was evaluated in the same manner as in Example 1, and the results are shown in Table 6.

[0063]

[Table 6]

In Table 6, Kelcogel (1) means gellan gum manufactured by Dainippon Pharmaceutical Co., Ltd. Vinylidene chloride means L536B manufactured by Asahi Kasei Corporation.

Example 4 Samples 1 and 3 prepared in Examples 1 and 2 were used to prepare a silver halide photographic material using the same as a support. In the formulation of the emulsion layer, the average particle size containing iridium was controlled to 0.2 by a control double jet.
5 micron monodispersed silver chlorobromide emulsion (silver chloride 70 mol%)
Was adjusted. Desalting, washing with water and re-dissolving by flow curation method, 6-methyl-4-hydroxy-1,3,
3a, 7-tetrazaindene was added to a concentration of 2 g / m ^2, and anhydro-5,5-dichloro- as a sensitizing dye was added.
9-ethyl-3,3'-di- (3-sulfopropyl) oxacarbocyanine hydroxidepyridinium
g / m ² . Gelatin was added to the emulsion thus obtained at a concentration of 2.5 g / m ² and polyethylene glycol at a concentration of 0.1 g / m ² , and then 2-hydroxy-4,6-dichloro-1,3,5 was used as a hardening agent. -The sodium salt of triazine was added at 3% by weight, based on the total amount of gelatin.

The emulsion coating solution having the above formulation was applied to each of Samples 1 and 3 so that the coated silver amount was 4 g per square meter, and was set by applying cool air, and then set in a blow dryer set at 50 ° C. And dried. The obtained photographic material samples (referred to as Invention 1 and Invention 2 respectively) were image-exposed using a xenon sensitometer, subjected to normal development processing, and subjected to a maximum image density (Dmax) and a background density (Dmi).
n) was determined by measuring the transmission density. Furthermore, use a cutter knife to make a 1-cm square grid-like scratch on the emulsion-coated surface, immerse it in 3N sodium hydroxide aqueous solution for 10 minutes, and rub the surface strongly with absorbent cotton soaked in water. Was used to evaluate the adhesion to the support. When the photosensitive layer was peeled off by rubbing the film surface, it was evaluated as x, when it was partially peeled off, it was evaluated as △, and when no peeling was observed, it was evaluated as ○. Further, in order to evaluate the storage stability of the obtained photographic material, one humidifier was conditioned at 50 ° C. and a relative humidity of 80%.
A sample stored for a week was prepared and evaluated in the same manner as above. As comparative samples, the evaluation results are also shown for Comparative Samples 1 to 4 when the same emulsions were coated and dried under the same conditions using Comparatives 1 to 4 prepared in Example 1 as a support. 7 is shown. From Table 7, it can be seen that in the present invention, in addition to the improvement in the adhesiveness, the change in the photographic characteristics with the storage time is small.

[0067]

[Table 7]

Example 5 Samples 5 to 14 which are polyester films having a double-layer undercoating structure prepared in Example 3 were used, and the emulsion layer coating liquid used in Example 4 was used. A silver halide photographic light-sensitive material was prepared in exactly the same manner. As in Example 4, good results were obtained without affecting photographic characteristics and storage stability. In this case, no clear difference was observed between the single-layer undercoating structure (Example 5) and the two-layer undercoating structure (Example), which are the undercoating structures of the used polyester films.

Next, the following examples were carried out on lithographic printing plates in order to demonstrate the superiority of the present invention. Example 6 Samples 1 and 3, which are the undercoated polyester films prepared in Examples 1 and 2, were used as a support, and an undercoat layer, an emulsion layer and a nucleus liquid layer shown below were laminated in this order. The resulting planographic printing plates 1 and 2 were obtained.

Undercoat layer (anti-halation layer) Gelatin 35 parts Formalin (30% solution) 2 parts Water 200 parts Titanium oxide (TR-1 manufactured by Sakai Chemical Co.) 50 parts Water 100 parts Matting agent: Cyloid (Fuji Davidson) (grade) 978) 7.5 parts Carbon black dispersion (solid content 30%) 8 parts Surfactant 6 parts Water was added to make the total amount 600 parts.

The undercoat layer (antihalation layer) coating solution was applied onto the polyester film with a solution so as to be 60 g per square meter and dried. Further, on this undercoat layer (antihalation layer), an ortho-sensitized high-contrast silver chloride emulsion was coated and dried at 1.5 g / m ² (gelatin 0.8 g / m ² ) in terms of silver nitrate. The hardener used for the emulsion layer was formalin. After drying, the mixture is heated in a dryer controlled at 50 ° C. for 2 days, and then coated with a physical development nucleus solution and dried according to Example 1 described in JP-A-8-212614, whereby the present invention is achieved. Lithographic printing plates 1 and 2 were prepared.

For comparison, comparative lithographic printing plates 1 to 3 prepared in exactly the same manner except that Comparative 1, Comparative 2 and Comparative 4 which were the undercoated polyester films prepared in Example 1 were used as the support, respectively. Created.

After the lithographic printing plate obtained above was exposed according to the image, 30 parts of the lithographic printing plate were transferred to a transfer developer of the following formula (A).
At 30 ° C. for 30 seconds to perform transfer development, and subsequently immersed in a stop solution having the following formulation (B) for 30 seconds (25 ° C.)
Squeezed to remove excess liquid and dried.

Formulation (A) Transfer developer Water 700 ml Potassium hydroxide 20 g Anhydrous sodium sulfite 50 g 5-phenyl-2-mercapto-1,3,4-oxadiazole 1 g 2-methylaminoethanol 30 g Potassium bromide 5 g Water In addition, make the total volume 1 liter.

Formulation (B) Stop solution Water 600 ml Citric acid 10 g Sodium citrate 35 g Colloidal silica (20% solution) 5 ml Ethylene glycol 5 ml Water is added to make a total volume of 1 liter.

The lithographic printing plate obtained by the above plate making process was mounted on an Ryobi 3200CD offset printing press,
Printing was performed after wiping the plate surface with the liquid comprising the formula (C).
The temperature during printing was 22 ° C. and the humidity was 60%.

Formulation (C) Water 600 ml Isopropyl alcohol 400 ml Ethylene glycol 50 ml 2-mercapto-5-heptyl-1,3,5-oxadiazole 1 g

A liquid represented by the following formula (D) was used as a moisture absorbing liquid, and F Gloss Black B and F Gloss Blue Indigo manufactured by Dainippon Ink were used as printing inks. F-gloss blue indigo is one of the inks that tends to cause printing stains on the lithographic printing plate.

Formulation (D) o-phosphoric acid 10 g nickel nitrate 5 g sodium nitrite 5 g ethylene glycol 100 ml colloidal silica (20% solution) 28 g Water is added to make a total amount of 2 liters.

The lithographic printing plate obtained as described above was exposed through an optical wedge, and the developed printing plate was subjected to reflection density measurement using an ordinary optical densitometer to determine the sensitivity (S) and tone (gamma γ). ). The sensitivity was shown as a relative value with the value of the fresh sample of Comparative Sample 1 being 100. The fresh plate was heated at 50 ° C. for 6 days in order to check the deterioration when stored under heating. Thereafter, the same processing as above was performed, and the sensitivity (S ′) and the tone (γ ′) after the heating treatment were obtained. The results are shown in Table 8.

[0081]

[Table 8]

Further, a 1-cm square grid-like scratch was formed on the emulsion-coated surface using a cutter knife, immersed in a 3N sodium hydroxide aqueous solution and dimethylformamide for 10 minutes, and then water was added. The surface was strongly rubbed with absorbent cotton to evaluate the adhesion to the support. When the photosensitive layer was peeled off by rubbing the film surface, it was evaluated as x, when it was partially peeled off, it was evaluated as △, and when no peeling was observed, it was evaluated as ○. Table 9 shows the results of each evaluation. Table 9
According to the results, in the adhesiveness to the support, the comparative lithographic printing plate easily peeled off the photosensitive layer film in an alkaline aqueous solution, but the sample prepared in this example showed good adhesiveness. .

[0083]

[Table 9]

Table 10 summarizes the results of the printing test using the offset printing machine described above. The printability was evaluated based on the degree of printing stains and the printing durability.With regard to print stains, 場合 indicates that there was no stain at all, △ indicates that partial stains occurred, and 場合 indicates that stains occurred on the front. X. Regarding the printing durability, the case where normal printing was performed on 20,000 copies or more of printed matter was rated as ○, the case where image missing etc. occurred in 5,000 copies or less of printed matter, as ×, and the middle between them as △. did.

[0085]

[Table 10]

Example 7 The undercoat layer coating solution, emulsion layer coating solution and nucleus solution used in Example 6 using the polyester films having a double-layer undercoating structure prepared in Example 3 and Samples 5 to 14, which were used in Example 6. Using the layer coating solution, a lithographic printing plate was prepared in exactly the same manner as in Example 6, and as in Example 6, good results were obtained for the adhesion and printability without affecting the photographic properties and storage stability. I got In this case, no clear difference was observed between the single-layer undercoat structure (Example 6) and the two-layer undercoat structure (Example), which is the undercoat structure of the used polyester film.

Next, with respect to the ink jet recording material, the following examples were conducted in order to demonstrate the superiority of the present invention. Example 8 Samples 1, 3, 4, and 5 prepared in Examples 1 to 3 were used as a polyester film support, and the surface of these was used as an ink receiving layer in JP-A-6-34016.
JP-A No. 4 (KOKAI) No. 4 discloses a method for preparing the inkjet recording materials 1 to 4 using the cationic polymer obtained in Synthesis Example 1 and using an epoxy crosslinking agent (Denacol EX-521) in the same manner as in the Publication Example 1. Each was created. Comparative recording materials 1 and 2 produced in exactly the same manner except that comparative polyester films 1 and 2 produced in Example 1 were used as comparative recording materials 1 and 2 were also evaluated.
These were printed in yellow, magenta, and cyan, respectively, using BJC-700J manufactured by Canon Inc. as an inkjet printer. On the printed recording material, several drops of water were dropped on the printed portion of each color. After leaving for 5 minutes, the printed portion was rubbed 10 times with cotton moistened with water. This allows
As the evaluation of water resistance, the case where the printed surface was separated from the support was evaluated as x, the case where no significant influence was observed was evaluated as ○, and the case where partial separation was observed between the two was evaluated. At the same time, with respect to the print density change of each color, the case where the density decrease is observed 0.3 or more is indicated by x, the case of 0.1 or less is indicated by ◎, the case of 0.1 to 0.2 is indicated by ○, 0.2 to 0 The case of .3 was marked as Δ. The results are shown in Table 11.

[0088]

[Table 11]

[0089]

The present invention provides a polyester film having improved adhesion to a water-based coating layer. Further, the present invention provides a silver halide photographic light-sensitive material, a lithographic printing plate, and an ink jet recording material having excellent adhesion to a polyester film support.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C08G 18/48 C08G 18/80 4J004 18/80 C08J 7/04 CFDF 4J034 C08J 7/04 CFD CFDG 4J038 C09D 5 / 00 D 4J040 C09D 5/00 5/02 5/02 175/04 175/04 C09J 175/04 C09J 175/04 G03C 1/91 G03C 1/91 B41J 3/04 101Y // C08L 67:00 F term ( Reference) 2C056 EA13 FB02 FC06 2H023 CB02 FB02 FB03 FB04 2H086 BA12 BA19 BA34 2H114 AA04 AA14 AA23 AA28 AA30 BA01 BA10 DA06 DA43 DA50 DA51 DA53 DA56 DA59 DA60 DA73 EA02 FA14 4F006 AA37 AB04 AB03 AB24 AB03 AB24 AA06 AA17 AB04 CA06 CC02 CE01 4J034 BA03 DA01 DA10 DB01 DD11 DF01 DG00 DG03 DP17 DP18 DP20 EA02 EA07 E A08 EA18 HA01 HA07 HB07 HB08 HC03 HC12 HC17 HC22 HC35 HC46 HC52 HC61 HC71 HC73 HD13 JA43 QC05 RA07 RA16 4J038 BA091 BA171 BA191 CE021 CG031 CK031 CL001 CR061 DA042 DA162 DB002 DG101 DG191 DG261 DG301 GA06 GA10 GA13 GA13 GA06 GAB GAB13J 4J040 BA081 BA141 BA161 DD021 DF011 DH031 DJ031 DN061 EB032 EB132 EC002 EF181 EF201 EF281 EF331 GA06 GA31 HC22 HC25 JA03 KA16 KA38 LA06 MA10 MB03 NA17 NA21 PA10 PA13

Claims (7)

[Claims] 1. A water-based, easily-adhesive polyester film comprising a polyester film and a subbing layer containing a resin emulsion having a hydrolyzable silyl group and an isocyanate-based crosslinking agent. 2. The water-based easily adhesive polyester film according to claim 1, wherein the isocyanate-based crosslinking agent is a self-emulsifying isocyanate crosslinking agent having an ethylene oxide repeating unit and two or more isocyanate groups. 3. The water-based easily adhesive polyester film according to claim 1, wherein the isocyanate-based crosslinking agent is a blocked isocyanate crosslinking agent. 4. A water-based easy-adhesion, wherein a second undercoat layer comprising a water-soluble polymer and a crosslinking agent for crosslinking the same is further provided on the undercoat layer according to claim 1. Polyester film. 5. A silver halide photographic material using the water-based easily adhesive polyester film according to claim 1. 6. A lithographic printing plate using the water-based easily-adhesive polyester film according to claim 1. 7. An ink jet recording material using the water-based easily-adhesive polyester film according to claim 1.