JP3490119B2 - Support for imaging materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention
A paper substrate on which one image forming layer is provided (hereinafter, abbreviated as “base paper”)
Surface) is mainly composed of polyethylene resin
Coated paper mold covered with a resin layer composed of a resin composition
This is related to the support for image materials.
And the support of the image forming layer, in which the occurrence of
Of resin composition with good film-forming properties
Resin coating with good performance and high-speed and stable production
The present invention relates to a support for a paper type image material. [0002] 2. Description of the Related Art Conventionally, the base paper for image material applications has
Resin-coated paper-type supports coated with ethylene resin
Well known. For example, in Japanese Patent Publication No. 55-12584,
The base paper is a resin having film-form performance, preferably polyolefin.
Technology for photographic supports coated with thin resin
It is shown. U.S. Pat.
For photographic supports coated on both sides with polyolefin resin
The technology is disclosed. Also, silver halide photography
Since the rapid photographic processing method for true photosensitive materials was applied,
Photographic support with both sides of base paper coated with polyethylene resin
The carrier is mainly used for photographic printing paper.
If necessary, the resin layer on one of the image forming layers may be sharp.
To give the degree, usually contains titanium dioxide pigment
I have. [0003] US Patent No. 4,774,224 discloses that
Surface roughness of resin coating is 7.5 micro inches -AA or less
The surface of resin-coated paper, especially base paper, is made of polyethylene resin
With polyethylene resin coated paper coated with
Thermal transfer recording image receiving elements have been proposed. In addition,
JP-A-63-307979 has a resin-coated paper as a support.
A technique relating to an ink jet recording sheet is disclosed.
ing. However, at least one side of the base paper
Coated paper-type image material coated with polyethylene resin
Supports are still critical in terms of production and quality.
Had problems. That is, first, a polyethylene resin-coated paper
Using a melt extruder on a normally running base paper.
Filled with a polyethylene resin composition from a slit die
Between the pressure roll and the cooling roll.
And then peeled off from the roll after cooling.
Produced in the process. However, conventional polyethylene resin coating
In covering paper, the higher the production speed, the more the cooling roll
Of polyethylene-based resin-coated paper of
Width-like horizontal unevenness called peeling unevenness on the paper-covered surface
There was a problem that occurs. In addition, polyethylene resin
The production of coated paper is usually at least 2-3 days after the start of operation.
Usually a melt extruder for one week, sometimes one month
Operation is performed, but the period of continuous operation becomes longer
The more it is, the worse it is to clean up, and the more uneven peeling tends to occur
was there. When this peeling unevenness occurs, the polyethylene tree
Excellent in smoothness of grease-coated paper with no surface defects
Polyethylene resin coated paper that requires
As polyethylene-based resin-coated paper for imaging materials
Is a problem that is completely inappropriate and has no commercial value
There was a point. Second, a polyethylene resin-coated paper support
When an image forming layer is applied thereon to form an image material,
Insufficient adhesion between support and image forming layer, so-called film
Tended to be. In particular, support paper coated with polyethylene resin.
In the case of silver halide photographic materials used as a carrier,
Medium, that is, the film of the photographic emulsion layer in the wet state tends to be poor.
There was a direction. Poor silver halide photography with film in photographic emulsion layer
The true material peels off the emulsion layer from the support during the development process.
Caused a serious problem in practical use. [0007] The above polyethylene-based resin-coated paper
To eliminate or improve various problems and other disadvantages
There are several technical proposals. Polyethylene resin coated paper
Polyethylene resin to improve peelability during manufacturing
It has been proposed to include various release agents in the composition
I have. For example, the specific described in JP-A-60-176036
Fatty acid amides, polyalkylenes described in JP-A-63-30841
Glycol compounds, fluorine described in JP-A-64-9444
Containing polymer, α-ole described in JP-A-4-143748
Various release agents such as fin-modified silicone have been proposed.
You. However, these release agents are
Even if it is contained in a fat composition, its effect of improving releasability is extremely small.
Not enough, especially at a production speed of 180 m / min or more.
With little or no effect, rather with the base paper
Adhesion to the polyethylene resin layer may deteriorate,
Image forming layer and polye
There is a problem that the film adhesion with the styrene resin layer is deteriorated.
I was born. [0008] In the production of polyethylene-based resin-coated paper,
As another attempt to improve the releasability of wood, Japanese Patent Publication No. 62-19732
Use of micro-roughened cooling rolls described in Japanese Patent Publication
Cooling with embedded fluorine-based resin described in 1-24292
The use of recirculating rolls, and further described in JP-A-1-129249
The melting peak is 110 ° C or higher and the melt index
Of low-density polyethylene resin whose weight is 5-20 g / 10 minutes
Techniques for use have been proposed. However,
Even if these cooling rolls and resin are used, polyethylene
The effect of improving the releasability of resin-coated paper is insufficient, especially
At a production speed of 180 m / min or more, the effect of improving peelability is extremely high
Was insufficient or totally ineffective. On the other hand, a polyethylene resin-coated paper is used as a support.
With the film of the image forming layer of the image material and the support, particularly
Wet state of photographic emulsion layer of silver halide photographic material with support
Some suggestions have been made to improve the membrane
ing. Image forming layer of resin-coated paper type image material support
Improves the film with the support to improve the image forming layer
The easiest way to give good coatability is the UK patent
Nos. 971,058 and 1,060,526
The resin surface of the resin-coated paper-type image material support
Electron impact. Electron impact is corona discharge treatment
Also known. However, conventionally known resin coatings
Even if corona discharge treatment is applied to the surface of
With a film of the image forming layer and the support, particularly supporting the photographic constituent layer
Make sure that the membrane is wet when in contact with the body.
Not possible, often during storage of the support, corona treatment
Weak with air conditioning conditions and other unknown factors
There was a problem that it became an image material. Also, Japanese Patent Application Laid-Open Nos. 62-260149 and 63-260149
-198048, JP-A-1-137252, resin coating
An undercoat layer containing gelatin should be provided on the surface of a paper-type photographic support.
It has been proposed. However, conventionally known resin coatings
After applying corona discharge treatment to the resin layer surface of the paper
Even if a support for an image material provided with a coating layer is used, the image forming layer
With the support of the photographic support, especially the wetting of the photographic constituent layer with the support
Very good condition with film in condition
Factors that still vary with film
Up to. [0011] SUMMARY OF THE INVENTION Accordingly, the first aspect of the present invention
The purpose of this is to use paper as a substrate
Resin layer composed of resin composition mainly composed of tylene resin
Table coated with
Support for image forming layer with excellent surface smoothness without surface defects
Support for resin-coated paper-type imaging materials with extremely good film adhesion
Is to provide the body. The second object of the present invention is to remove paper
As a substrate, one base paper surface is made of polyethylene resin.
A resin layer composed of a resin composition that is the main component.
Coating at a production speed of 180m / min or more without the problem of
Therefore, it has good productivity, is economical, and has
Excellent smoothness with no surface defects, generation of which is significantly suppressed
Very good image forming layer with support
An object of the present invention is to provide a support for a resin-coated paper type image material.
You. A third object of the present invention is to significantly reduce the occurrence of peeling unevenness.
Control and excellent smoothness.
High photographic paper can be obtained at the same time.
To provide a resin-coated paper-type photographic support with extremely good
Is to provide. Other objects of the present invention are as follows:
It will be clear from the description in the detailed description. [0012] Means for Solving the Problems The present inventors have set forth the above object.
As a result of intensive studies to solve
One side of the paper substrate on which the image forming layer is provided is polyethylene
Covered with a resin layer composed of a resin composition containing a base resin as a main component
In the obtained support for image material, the resin composition
Polyethylene-based resin becomes heavy using metal metallocene polymerization catalyst
Synthesized polyethylene resin (hereinafter referred to as component A)
With long chain branches produced by the high pressure method
For example, ethylene resin (hereinafter sometimes referred to as component B)
And the component A and the component B in the resin composition.
Polyethylene resin component (hereinafter referred to as polyethylene resin
Mw / Mn (here, Mw:
Weight average molecular weight, Mn: 4 or more)
The image material support is characterized in that
It has been found that the object of the invention is achieved. Mw / Mn referred to in the present invention is specifically as follows:
Ask like. Waters 150-C (column:
Tosoh GMH-XL HT 8mmφ × 3cm × 3,
Solvent: 1,2,4-trichlorobenzene, temperature: 135
Gel permeation using a flow rate of 10 ml / min.
Mw and Mn are determined by a chromatographic (GPC) method.
It measured and calculated Mw / Mn. An object of the present invention is to mainly use a polyethylene resin.
Resin composition (hereinafter simply referred to as polyethylene resin)
Metallocene polymerization catalyst in the composition)
Content of polyethylene resin produced by polymerization using
50 to 90% by weight based on all polyethylene resin
As a result, it has been found that it is achieved remarkably. Also book
An object of the present invention is to provide a polyethylene resin component in a resin composition.
Having a Mw / Mn of 4 or more, preferably 7.0 or more
We find that it can be significantly achieved by using a product
did. Further, an object of the present invention is to provide an undercoat layer on a resin layer.
Is achieved more remarkably by
This is the invention. Polyethylene used in the practice of the present invention
The resin composition is polymerized using a metal metallocene polymerization catalyst.
It contains a manufactured polyethylene resin. That
As for the content, molding processability, peeling unevenness and image form
In view of the effect of improving the film with the layered support, the resin composition
50 to 90% by weight based on the total polyethylene resin in the product
Is preferred. Metal metallocene used in the practice of the present invention
Polyethylene resin produced by polymerization using polymerization catalyst
For example, JP-T3-502710, JP-A-60-35006,
JP-T-63-501369, JP-A-3-234717, JP
As described or disclosed in JP-A-3-234718
And zirconium-based or hafnium-based metallocene
Preferably, the catalytic activity is combined with methylaluminoxane.
Polymerized by using a polymer with enhanced properties as a polymerization catalyst
Things. These include the components in the resin composition.
Range where Mw / Mn of the ethylene resin component is 4 or more
, Various densities and melt flow rates (hereinafter
Below, simply abbreviated as MFR), molecular weight, low density of molecular weight distribution
Polyethylene resin, medium density polyethylene resin, high density
Polyethylene resin, ethylene-based propylene,
Copolymer with α-olefin such as butylene, carboxy
Giving modified polyethylene resins and their mixtures
Can be formed, but usually the density is 0.90 to 0.97 g / cm^Threeof
Range, MFR 0.05 to 500 g / 10 min, preferably
0.08-300g / 10min, alone or in combination
These can be used in combination. [0017] Polyethylene used in the practice of the present invention
Polymerization using metal metallocene polymerization catalyst in resin composition
Included in combination with manufactured polyethylene resin
Polyethylene with long chain branches produced by high pressure method
Autoclave type reactor, tube
High pressure production method under several thousand atmospheres using a
Various types of polyethylene resins having long chain branches,
As the content, the total polyethylene content in the resin composition
5 to 50% by weight based on resin, preferably 10 to 30 weight%
% Is more preferred. Manufactured by their high pressure method
Low density polyethylene resin with long chain molecules
Polyethylene resin, medium density polyethylene resin, ethylene
Copolymerization with α-olefins such as propylene and butylene
, Carboxy-modified polyethylene resin, etc.
Compound, various density, MFR, molecular weight, molecular weight distribution
Can be used, but usually has a density of 0.90 to 0.9.
5g / cm^ThreeRange, MFR 0.1 ~ 50g / 10min, preferred
Or one with an MFR in the range of 0.4 to 50 g / 10 minutes
Alternatively, two or more kinds can be used in combination. As the polyethylene resin composition, the same group
Polyethylene resin composition comprising component A and component B in the product
With Mw / Mn of 4 or more for resin moldability
And those having Mw / Mn of 7.0 or more are used. Further, the resin layer may have a multilayer structure.
You. When the resin layer has a multilayer structure, the outermost resin composition
In the present invention, as the lower layer resin composition,
Use a resin composition of another property and composition, such as using a known one
Can also be used. The base paper of the support for the image material in the present invention
The side on which the resin layer made of the resin composition according to the present invention is provided
(Hereinafter, it may be abbreviated as the front side.)
(May be abbreviated as "backside").
Is coated with a resin capable of forming a film. Those
Polyolefin resin is a film-forming resin
Fat, polycarbonate resin, polyester resin, polya
Thermoplastic resins such as amide resins are preferred
Polyolefin resin further from the point of coating ability
Preferably, a polyethylene resin is particularly preferred. Also,
Electron beam curing described or exemplified in JP-B-60-17104
It may be covered with a resin. In the present invention, the support for the image material on the front side
The coating thickness of the resin layer may be in the range of 4 to 100 μm.
However, the thickness is preferably in the range of 6 to 50 μm, and more preferably 9 to 35 μm.
The range of μm is particularly preferred. The back side of the base paper is a film type
It is coated with a capable resin, but the resin is polyethylene
Resin is preferred, and the coating thickness is
It is especially appropriate to set appropriately within the range to take curl balance
Preferably, a range of 4 to 100 μm is generally useful.
However, it is preferably in the range of 6 to 50 μm. The base paper surface of the support for image material in the present invention
As a method of coating the polyethylene resin composition on,
Using a resin extruder to melt the resin composition on the running base paper
From the slit die to form a film.
Coating by the so-called melt extrusion coating method
Is preferred. At that time, the temperature of the molten film was 280-
Preferably it is 340 ° C. As a slit die
Is a T-die, L-die, fishtail-type die
A rat die is preferable, and the slit opening diameter is 0.1 to 2 mm.
It is desirable that Also, the resin composition is coated on the base paper.
Before printing, corona discharge treatment, flame treatment, etc.
Is preferably performed. Also, JP-B 61-422
As described in No. 54, the molten resin composition on the side in contact with the base paper
After blowing ozone-containing gas on the object,
A fat layer may be coated. Also, both sides of the base paper are covered with resin layers.
When covering, the resin layers on the front and back sides are sequentially, preferably
The so-called tandem pressing is performed by extrusion coating
It is preferable that the base paper is coated by the extrusion coating method.
Multi-layer extrusion of resin layer as needed
It may be covered by a coating method. Also, image materials
The surface of the surface resin layer on the side where the image forming layer of the
Surface, finely rough surface described in JP-B-62-19732, matte surface or
Can be processed into a silk surface, etc., and the back resin on the opposite side
The layer surface is usually preferably processed to a matte surface. In particular, the book
The effect of the invention is that the surface of the surface resin layer on which the image forming layer is provided
It is remarkable in a support for an image material having a rough surface or a rough surface.
is there. Surface resin of support for image material in the present invention
Various additives may be added in the layer and, if necessary, in the back resin layer.
Can be included. Japanese Patent Publication No. 60-3430,
JP-B-63-11655, JP-B1-38291, JP-B1-1-291
No. 38292, JP-A-1-105245 or the like
Illustrative titanium dioxide pigments, zinc oxide, talc, calcium carbonate
White pigments such as calcium, stearamide, arachidine
Fatty acid amides such as acid amide, zinc stearate, stear
Calcium phosphate, aluminum stearate, steer
Magnesium phosphate, zinc palmitate, myristic acid
Fatty acid metal salts such as zinc and calcium palmitate;
Hindered feather described or exemplified in JP-A-1-105245
Various acids such as knol, hindered amine, phosphorus and sulfur
Antioxidant, cobalt blue, ultramarine, celian blue, black
Blue pigments and dyes such as tarocyanine blue, Kovar
To violet, fast violet, manganese bi
Magenta pigments and dyes such as olet, JP-A-2-254440
Fluorescent brighteners and ultraviolet absorbers described or exemplified in Japanese Patent Application Publication
Various additives such as etc. are appropriately combined and included
Can be done. These additives are used in resin master batches.
Or it is preferable to include them as a compound. An object of the present invention is to provide an image forming layer on the side where an image forming layer is provided.
By applying an undercoat layer on the surface resin layer,
Achieved. That is, the polyethylene resin in the present invention
Between the resin layer composed of the composition and the undercoat layer coated thereon
Due to the synergistic effect, with the film of the image forming layer and the support, especially
Significant improvement in wet coating between photographic component layer and support
It turned out to be good. As an undercoat layer used in the practice of the present invention
Is preferably an undercoat layer containing gelatin as a main component. Those
As gelatin, lime-treated gelatin, acid-treated gelatin
, Enzyme-treated gelatin, gelatin derivatives such as dibasic
Gelatin reacted with acid anhydride
Various types such as the low molecular gelatin described
come. Also, use polyvinyl alcohol in combination with gelatin.
And other hydrophilic polymers such as starch and starch.
I can do it. The amount of gelatin applied to the undercoat layer
0.005 to 1.0 g / m^TwoIs useful and preferably
Is 0.01 to 0.3 g / m^Two, More preferably 0.015-
0.1 g / m^TwoRange. Also, as the pH of the undercoat coating solution
Is not particularly limited, but for photographic purposes, there is no
From the point of view, pH 8 or less is preferable, and pH 7 or less is more preferable.
No. In the undercoat layer used in the practice of the present invention,
Various additives can be included. As a preservative
Thus, p-his described or exemplified in JP-A-1-102551.
Droxybenzoate compound, benzisothiazolo
Surfactants, such as surfactant compounds and isothiazolone compounds
, Alkylbenzene sulfonate, sulfosuccinate
Anionic surfactants such as acid ester salts, saponins,
Nonionic surfactants such as alkylene oxides, especially
Japanese Patent Publication No. 47-9303, U.S. Patent No. 3,589,906, etc.
Fluorinated surfactant according to JP-A-1-66035
Patent application title: Sulfobetaine surfactant, amino acid
Amphoteric surfactants such as amino acids and esters of amino alcohol
Ethylene as an agent, emulsion or latex
-Acrylic, styrene-butadiene, styrene-a
Kuryl, vinyl acetate-acrylic, ethylene-vinyl acetate
Nyl-based, butadiene-methacryl-based, vinylidene chloride-based
Emulsions of polymers and their carboxy-modified polymers
Active halogen as a hardening agent such as
Compound, vinyl sulfone compound, aziridine compound,
Epoxy compounds, acryloyl compounds, isocyanates
Other toning of hardeners such as compounds, chrome alum, chromium sulfate
Agents, optical brighteners, matting agents, antifoggants or
Incorporate a constant agent, pH adjuster, etc. in appropriate combination
be able to. The undercoat layer used in the practice of the present invention is
As a method of providing on the surface of the styrene resin,
After coating the surface with the polyethylene resin composition, wind it up
On the resin side where the image forming layer is to be
A so-called on-machine type is formed by applying and drying a liquid to form an undercoat layer.
It is preferable to carry out the method. Also, take up the resin-coated paper
And then store the wound if necessary, and then renew the subbing layer.
, That is, a so-called off-machine method.
An air knife coater is used to apply the undercoat coating liquid.
ー, roll coater, bar coater, wire bar coater
Tar, blade coater, slide hopper coater,
Curtain coater, gravure coater, flexogravi
Examples include an coater and a combination thereof. Paint
Before cloth application, the resin surface is treated with corona discharge prior to application.
It is desirable to perform an activation treatment such as a flame treatment.
Linear tunnel drying as a drying device for the applied coating liquid
Machine, arch dryer, air loop dryer, sign
Hot air dryer such as curve air float dryer, infrared
Dryer using wire, heating dryer, microwave, etc.
Various drying devices can be given. The drying conditions are
Optional, but generally at 60 to 150 ° C. for several seconds to 10 minutes
Done in The base paper used in the practice of the present invention includes:
Paper mainly composed of natural pulp (hereinafter simply abbreviated as base paper)
Is used advantageously, but synthetic fiber or synthetic tree
A so-called synthetic paper in which a fat film is made into pseudo paper may be used. The base paper which is advantageously used for carrying out the present invention is composed of
As the pulp to be formed, JP-A-58-37642, JP-A-58-37642
JP-A-60-67940, JP-A-60-69649, JP-A-61-354
Appropriate selection as described or exemplified in
Although it is advantageous to use selected natural pulp,
According to synthetic pulp other than natural pulp, using synthetic fiber
Is also good. Natural pulp is chlorine, hypochlorite, chlorine dioxide
Normal bleaching process of bleaching and alkali extraction or Al
Potassium treatment and if necessary with hydrogen peroxide, oxygen, etc.
Oxidized bleaching, etc., and their combination
Softwood pulp, hardwood pulp, softwood pulp mixed pulp
Wood pulp is advantageously used, and
, Sulphite pulp, soda pulp, etc.
Can be used. In the base paper advantageously used in the practice of the present invention
Incorporates various additives when preparing stock slurry
be able to. Fatty acid metal salts or fats as sizing agents
Acids, alkyls described or exemplified in JP-B-62-7534
Luketen dimer emulsion or epoxidized higher fatty acid amide
De, alkenyl or alkyl succinic anhydride emulsions,
Anionic and carboxylic derivatives such as gin derivatives
Thionic or amphoteric polyacrylamide, polyvinyla
Alcohol, cationized starch, vegetable galactomannan
Polyamine polyamide epi as a wet paper strength enhancer
Clay, kaori as filler such as chlorohydrin resin
, Calcium carbonate, titanium oxide, etc.
Water-soluble aluminum salts such as aluminum chloride and bansulfate
Caustic soda, sodium carbonate, sulfuric acid
And others, JP-A-63-204251, JP-A-1-266537
Or pigments or dyes described or exemplified in
It is advantageous to incorporate an appropriate combination of a photo brightener and the like.
You. In addition, the raw materials that are advantageously used in the practice of the present invention.
Various water-soluble polymers, antistatic agents, additives
With a size press or tab size press
You can have it. As a water-soluble polymer,
Starch-based polymers described or exemplified in JP-A 1-266537
ー, polyvinyl alcohol polymer, gelatin poly
Polymer, polyacrylamide-based polymer, cellulose-based polymer
Sodium chloride, potassium chloride
Alkali metal salts such as lium, calcium chloride, bali chloride
Alkaline earth metal salts such as
Yes, such as Lloyd-like metal oxide and polystyrene sulfonate
Emulsion, latex, etc.
Petroleum resin emulsion, ethylene-vinyl acetate copolymer
Body, described in JP-A-55-4027 and JP-A-1-80538.
Ethylene and acrylic acid (or methacrylic
Emulsions of copolymers comprising at least one of
John, latex, etc.
Olin, talc, barium sulfate, titanium oxide, etc., pH adjustment
Hydrochloric acid, phosphoric acid, citric acid, caustic soda, etc.
In addition to the above-mentioned coloring pigments, coloring dyes, optical brighteners and the like
It is advantageous to incorporate additives in appropriate combinations.
You. The thickness of the base paper used in the practice of the present invention is
Although there is no particular limitation, the basis weight is 20 to 250 g /
m^TwoAre preferred. In addition, the raw materials that are advantageously used in the practice of the present invention.
As paper, the film thickness unevenness index in the papermaking direction specified below
It is preferable that Rpy is 350 mV or less,
mV or less is more preferable, and 160 mV or less
Those are most preferred. Here, the film thickness unevenness index Rpy is
Is a value specifically determined as follows. Measurement pressure is
Two spherical diameters of about 5 m, which are about 30 g / stroke
Run the sample between the styluses, and use the
Anritsu measuring as an electrical signal through a chromometer
Using a film thickness measurement device manufactured by
Under the condition that the sensitivity range of the meter is ± 15μm / ± 3V,
Run at a constant speed of 1.5 m / min in the papermaking direction of the sample after adjusting the zero point
By measuring the thickness variation of the sample in the papermaking direction,
The measured signal value is converted to an FFT analyzer by Ono Sokki Co., Ltd.
-CF-300 model (input signal AC ± 1V, sampler
Time point using a Hanning window,
Fast Fourier under processing conditions with a frequency range of 50 Hz
Linear scaling by conversion and averaging of 128 integrations
The power spectrum (unit: mV) in 2H
Each power on a linear scale in the frequency range from z to 25 Hz
-The value obtained by summing the squares of the values is multiplied by 2/3 to 1/2 power
Can be obtained by doing In addition, other
The processing conditions are set under the initial setting conditions of the CF-300 machine.
Produces base paper with a thickness unevenness index Rpy of 350 mV or less
As a method, specifically, it is easy to have smoothness with short fibers
30% by weight or more, preferably 50% by weight of hardwood pulp
Use as long as possible to reduce long fiber content by beater
Beating as follows. For example, pulp beating is
So that the weighted average fiber of the loop becomes 0.4-0.75mm
Is preferred. Then, the stock with added internal chemicals
Regarding the slurry, Japanese Patent Application Laid-Open No. 58-37642,
JP-A-61-260240, JP-A-61-2847
No. 62, etc.
Adopts paper making method and usually uses fourdrinier paper machine, round net paper machine, etc.
Paper making so that a uniform formation can be obtained
Machine calendar, super calendar after papermaking
-, Calendering using a heat calender, etc.
Base paper with thickness unevenness index Rpy of 350 mV or less can be manufactured.
Can be. Backing resin of support for image material in the present invention
Activation treatment such as corona discharge treatment and flame treatment is performed on the layer surface.
After coating, various back coats for antistatic etc.
Layers can be applied. Also, for back coat layer
Are Japanese Patent Publication No. 52-18020, Japanese Patent Publication No. 57-9059,
JP-B-57-53940, JP-B-58-56859, JP-A-59
-214849, JP-A-58-184144, etc.
Or inorganic antistatic agents, organic antistatic agents, hydrophilic
Inder, latex, curing agent, pigment, surfactant, etc.
They can be incorporated in appropriate combinations. As a support for an image material in the present invention
Means that the film thickness unevenness index Rpy referred to in this specification is 400 mV or less.
Is preferable, and 300 mV or less is more preferable.
And those having a voltage of 200 mV or less are particularly preferable. The support for the image material in the present invention may be of various types.
Photographic component layer is applied to color photographic paper, black and white
For Shin photographic paper, photosetting paper, copy photographic paper, reversal photographic material
Material, silver salt diffusion transfer method for negative and positive, printing materials, etc.
It can be used for various applications. For example, silver chloride, odor
Provide silver chloride, silver chlorobromide, silver iodobromide, silver chloroiodobromide emulsion layers
be able to. Color coupler in silver halide photographic emulsion layer
A multi-layer silver halide color photographic constituent layer
Can be provided. In addition, photographic structures for silver salt diffusion transfer method
A stratification can be provided. Combining those photographic constituent layers
As an agent, in addition to ordinary gelatin, polyvinylpyrroli
Sulfonation of don, polyvinyl alcohol and polysaccharide
A hydrophilic polymer substance such as a compound can be used. Ma
In addition, the above photographic constituent layers contain various additives.
be able to. For example, as a sensitizing dye, a cyanine color
Water-soluble as a chemical sensitizer
Anti-fogging agents such as gold compounds and sulfur compounds
As a stabilizer, hydroxy-triazolopyrimidine compound
Compounds, mercapto-heterocyclic compounds, etc.
Marine, vinyl sulfone compounds, aziridine compounds
Alkylbenzenesulfonic acid as a coating aid
Salts, sulfosuccinates, etc.
And other fireflies such as dialkyl hydroquinone compounds.
Photo brightener, sharpness improving dye, antistatic agent, pH adjuster,
Fogging agent, and water-soluble during formation and dispersion of silver halide
Combine iridium and water-soluble rhodium compounds as appropriate
Can be contained. The photographic material according to the present invention comprises
Also refer to "Photosensitive Materials and Handling Methods" (Kyoritsu Shuppan, Go Miyamoto
Written exposure, as described in Photo Technology Course 2)
Processing such as image, stop, fix, bleach, and stabilize
come. Also, multilayer silver halide color photographic materials are
Promotes development of zyl alcohol, thallium salt, phenidone, etc.
May be treated with a developer containing an enhancer.
Can be processed with a developer that is substantially free of
You. The support for the image material in the present invention may be of various types.
The thermal transfer recording image receiving layer is coated and various thermal transfer recording image receiving
It can be used as a support for materials. Those heat rolls
As synthetic resin used for the recording / recording image receiving layer,
Ter resin, polyacrylate resin, polycarbonate
Resin, polyvinyl acetate resin, polyvinyl butyral
Resin, styrene acrylate resin, vinyl toluene
Resins having ester bonds, such as related resins, polyurethane
Resin having urethane bond such as tan resin, polyamide tree
Resins with amide bonds such as fats, urea bonds such as urea resins
Resin, other polycaprolactam resin, polystyrene
Resin, polyvinyl chloride resin, vinyl chloride-vinyl acetate
Copolymer resin, polyacrylonitrile resin, etc.
It is. In addition to these resins, these mixtures or copolymers
Polymers and the like can also be used. In the thermal transfer recording image-receiving layer according to the present invention,
A release agent, a pigment, and the like may be added in addition to the synthetic resin. Up
As the release agent, polyethylene wax, amide wax
Waxes, solid waxes such as Teflon powder, fluorine-based,
Phosphate ester surfactants, silicone oils, etc.
No. Of these release agents, silicone oil is the best.
Is also preferred. As the silicone oil, oily
Can be used, but a curable type is preferred. Curable
Silicone oils include reaction curable, light curable,
Medium-curable type, etc.
Ill is particularly preferred. As a reaction-curable silicone oil
Amino-modified silicone oil, epoxy-modified silicone
Corn oil and the like. The reactive silicone rubber
The addition amount of il is preferably 0.1 to 20% by weight in the image receiving layer.
No. The pigments include silica, calcium carbonate, oxidized
Extenders such as titanium and zinc oxide are preferred. In addition,
The thickness of the layer is preferably 0.5 to 20 μm,
10 μm is more preferred. The support for the image material in the present invention may be of various types.
Ink-receiving layer is applied and various inkjet recording
It can be used as a support for materials. Those in
Improves the drying properties of ink and sharpness of images in the ink receiving layer
Various binders for the purpose of
Wear. Examples of such binders include lime treatment
Gelatin, acid-treated gelatin, enzyme-treated gelatin, gelatin
Derivatives such as phthalic acid, maleic acid, fumaric acid
Various enzymes such as gelatin reacted with dibasic acid anhydrides such as
Latin, ordinary polyvinyl alcohol of various degrees of saponification,
Carboxy-modified, cationic-modified and amphoteric polyvinyl alcohol
Alcohol and their derivatives, oxidized starch, cationized starch
Powder, starches such as etherified starch, carboxymethyl cell
Inducing cellulose, such as cellulose and hydroxyethyl cellulose
Conductor, polyvinylpyrrolidone, polyvinylpyridium
Ride, poly (sodium acrylate), methacryl acrylate
Acid copolymer salt, polyethylene glycol, polypropylene
Glycol, polyvinyl ether, alkyl vinyl ether
-Tel / maleic anhydride copolymer, styrene / male anhydride
Inic acid copolymers and their salts, polyethyleneimine, etc.
Synthetic polymer, styrene-butadiene copolymer, methyl
Conjugated dienes such as methacrylate-butadiene copolymer
Copolymer latex, polyvinyl acetate, vinyl acetate
Maleic ester copolymer, vinyl acetate / acrylic acid
Ester copolymer, ethylene / vinyl acetate copolymer, etc.
Vinyl acetate polymer latex, acrylic acid ester
Coal, methacrylate polymer, ethylene-acryl
Lulic acid ester copolymer, styrene / acrylic acid ester
Acrylic polymer such as copolymer or copolymer latex
Or vinylidene chloride copolymer latex or this
Functional group-containing monomers such as carboxyl groups of these various polymers
Functional group modified polymer latex, melamine resin, urine
Water-based adhesives and polymers such as thermosetting synthetic resin
Chill methacrylate, polyurethane resin, unsaturated polyether
Ster resin, vinyl chloride / vinyl acetate copolymer,
Synthetic resin based on vinyl butyral, alkyd resin, etc.
Adhesive, Japanese Patent Publication No. 3-24906, JP-A-3-281383,
The alumina azo described or exemplified in Japanese Patent Application No.
And inorganic binders such as silica sol
Can be used alone or in combination.
Wear. The ink jet recording material according to the present invention
The ink receiving layer contains various additives in addition to the binder.
It can be contained. For example, as a surfactant
Long chain alkyl benzene sulfonate, long chain,
Or branched alkyl sulfosuccinates
Anionic surfactants, long chain, preferably branched alkyl
Polyalkylene oxide ethers of phenols containing group
Polyalkylene oxide of long-chain alkyl alcohol
Nonionic surfactants such as doether, JP-B-47-9303
No. 3,589,906, etc.
Γ-aminopropyltriet, such as
Xysilane, N-β (aminoethyl) γ-aminoprop
Silane coupling agents such as
Active halogen compounds, vinyls
Sulfone compounds, aziridine compounds, epoxy compounds,
Hardened film of acryloyl compound, isocyanate compound, etc.
Agents, preservatives, described in JP-A-1-102551
Is an exemplary P-hydroxybenzoate compound, ben
Such as diisothiazolone compounds and isothiazolone compounds.
Described in Kaisho 63-204251, JP 1-266537, etc.
Or exemplified coloring pigments, coloring dyes, optical brighteners,
Sodium hydroxymethanesulfonate as yellowing inhibitor
UV absorbers, such as sodium hydroxide and sodium P-toluenesulfinate
To position the hydroxy-di-alkylphenyl group at the 2-position
Benzotriazole compounds and other antioxidants
Described or exemplified in JP-A-1-105245.
As a pencil retouching agent such as
Organic or inorganic such as powder, barium sulfate, silicon dioxide, etc.
Fine particles having a particle size of 0.2 to 5 μm, Japanese Patent Publication No. 4-1337, etc.
Described or exemplified organopolysiloxane compound,
Caustic soda, sodium carbonate, sulfuric acid, salt as pH regulator
Octyl alcohol, silicic acid, etc.
Various additives such as corn-based antifoaming agents
You can have it. [0042] The present invention will now be described in detail with reference to examples.
However, the contents of the present invention are not limited to the examples. Hardwood bleached kraft pulp 50% by weight
35% by weight of hardwood bleached sulfite pulp and softwood bleach
A mixed pulp consisting of 15% by weight of sulfite pulp
After beaten to a length of 0.6 mm, 100 weight pulp
Parts by weight, 3 parts by weight of cationized starch, anionized poly
Acrylamide 0.2 parts by weight, alkyl ketene dimer
0.4 parts by weight of emulsion (as ketene dimer), poly
Amido epichlorohydrin resin 0.4 parts by weight and appropriate amount
Paper brightening agent, blue dye and red dye
Was prepared. The fiber length of the pulp after beating
TAPPI paper pulp test method N
o, 52-89 "Paper and pulp fiber length test method"
Length weight measured with a Kajaani FS-100 machine
Expressed as the average fiber length. Then, the stock slurry is 200m / min.
Turbulence on fourdrinier running on
To form a paper web and give 15 to 10 in the wet part.
Three-stage wet press with linear pressure adjusted within the range of 0 kg / cm
And then processed with a smoothing roll and continued
The linear pressure was adjusted in the range of 30 to 70 kg / cm in the drying part
After two-stage pressing, drying was performed. Then dry
Carboxy-modified polyvinyl alcohol 4 weight
Parts, optical brightener 0.05 parts by weight, blue dye 0.0002 parts
Parts, 4 parts by weight of sodium chloride and 92 parts by weight of water.
Size press liquid 25g / m^TwoPress size and finally
Dry the base paper so that the moisture content becomes 8%
After drying and machine calendering at a linear pressure of 70 kg / cm
Thermal calendering at a temperature of 150 ° C and a linear pressure of 150kg / cm
170g / m basis weight^TwoFilm thickness unevenness index Rpy is 140
A base paper for an image material support having a mV was produced. Next, the side opposite to the side on which the image forming layer is coated
After the corona discharge treatment of the base paper surface (back surface) of
Density polyethylene resin (density 0.924 g / cm^Three, MFR
= 0.8g / 10min) 30 parts by weight and high density polyethylene resin
(Density 0.967g / cm^Three, MFR = 15g / 10min) 70 weight
And melted and mixed in advance using a kneading extruder.
Polyethylene resin composition composed of compounded resin
Run the base paper at a resin temperature of 320 ° C to a resin thickness of 25 μm.
Melt extrusion coating was performed at a line speed of 200 m / min. This
At this time, as a cooling roll, the center plane average of the back resin layer surface
The roughness is designed so that the roughness SRa is 1.3 μm.
Using a cooling roll roughened by the liquid honing method
The operation was performed at a cooling water temperature of 12 ° C. Subsequently, the surface of the base paper was subjected to corona discharge treatment.
After that, the following polyethylene resin composition (Example
1-7 and Comparative Examples 1-6) at 32 ° C.
Extruded at a running speed of 200 m / min.
Coated. The front and back polyethylene resin
The melt-extrusion coating of the composition is performed by sequential extrusion coating.
-Is performed in a so-called tandem manner
Was. At this time, the resin-coated paper contains a titanium dioxide pigment.
The surface of the oil layer is cooled with a cooling water
Operating at 12 ° C., processed to a glossy surface. The polyethylene resin composition for the surface resin layer (actual
Examples 1 to 7 and Comparative Examples 1 to 6)
The polyethylene resins (M1 to M8) described in Table 1 are as follows:
Things. As the polyethylene resin (M1 to M8),
Based on the method described in JP-A-3-502710, ethylene /
A butene-1 copolymer was produced. The polyethylene resins (L1 and L2)
Manufactured by the high pressure method. As a polyethylene resin composition for the surface resin layer,
The following (Examples 1 to 7, Comparative Examples 1 to 6)
Was. As a polyethylene resin composition (Example 1)
42.5 parts by weight of polyethylene resin (M1)
42.5 parts by weight of Tylene resin (M8) and polyethylene
Resin (L1) 4.5 parts by weight, hydrous aluminum hydroxide (vs.
Al for titanium dioxide_TwoO_Three0.75 weight per minute
%) Surface-treated anatase type titanium dioxide pigment 10
Table 2 consisting of parts by weight and 0.5 parts by weight of zinc stearate
Polyethylene resin composition described above. As a polyethylene resin composition (Example 2)
42.5 parts by weight of polyethylene resin (M4)
42.5 parts by weight of Tylene resin (M6) and polyethylene
Resin (L1) 4.5 parts by weight, anatase-type titanium dioxide
10 parts by weight of tan pigment, 0.5 parts by weight of zinc stearate
A polyethylene resin composition according to Table 2 comprising: As a polyethylene resin composition (Example 3)
42.5 parts by weight of polyethylene resin (M3)
42.5 parts by weight of Tylene resin (M7) and polyethylene
Resin (L2) 4.5 parts by weight, anatase type titanium dioxide
10 parts by weight of tan pigment, 0.5 parts by weight of zinc stearate
A polyethylene resin composition according to Table 2 comprising: As a polyethylene resin composition (Example 4)
80.55 parts by weight of polyethylene resin (M5)
8.95 parts by weight of ethylene resin (L1), anatase
Type titanium dioxide pigment 10 parts by weight, zinc stearate 0.
A polyethylene resin composition according to Table 2 comprising 5 parts by weight. As a polyethylene resin composition (Example 5)
And 22.4 parts by weight of polyethylene resin (M1)
22.4 parts by weight of polyethylene resin (M8) and polyethylene
Resin (L1) 44.7 parts by weight, anatase-type dioxide
10 parts by weight of titanium pigment, 0.5 parts by weight of zinc stearate
A polyethylene resin composition according to Table 2 comprising: As the polyethylene resin composition (Example 6)
And 22.4 parts by weight of polyethylene resin (M4)
42.5 parts by weight of Tylene resin (M6) and polyethylene
Resin (L1) 44.7 parts by weight, anatase-type dioxide
10 parts by weight of titanium pigment, 0.5 parts by weight of zinc stearate
A polyethylene resin composition according to Table 2 comprising: As the polyethylene resin composition (Example 7)
And 13.4 parts by weight of polyethylene resin (M1)
13.4 parts by weight of polyethylene resin (M8) and polyethylene
62.7 parts by weight of resin (L1), anatase-type dioxide
10 parts by weight of titanium pigment, 0.5 parts by weight of zinc stearate
A polyethylene resin composition according to Table 2 comprising: A polyethylene resin composition (Comparative Example 1) was used.
89.5 parts by weight of polyethylene resin (M5)
Natase type titanium dioxide pigment 10 parts by weight, stearic acid
Polyethylene resin according to Table 2 consisting of 0.5 parts by weight of zinc
Composition. As a polyethylene resin composition (Comparative Example 2)
85.9 parts by weight of polyethylene resin (M5)
3.6 parts by weight of the ethylene resin (L1),
10 parts by weight of titanium oxide pigment, 0.5 weight of zinc stearate
The polyethylene resin composition shown in Table 2 consisting of parts by weight. A polyethylene resin composition (Comparative Example 3) was used.
And 44.75 parts by weight of polyethylene resin (M3)
44.75 parts by weight of ethylene resin (M7)
Zeta type titanium dioxide pigment 10 parts by weight, zinc stearate
0.5 parts by weight of the polyethylene resin composition shown in Table 2
object. As a polyethylene resin composition (Comparative Example 4)
44.75 parts by weight of polyethylene resin (M4)
44.75 parts by weight of ethylene resin (M6)
Zeta type titanium dioxide pigment 10 parts by weight, zinc stearate
0.5 parts by weight of the polyethylene resin composition shown in Table 2
object. As a polyethylene resin composition (Comparative Example 5)
43.85 parts by weight of polyethylene resin (M4)
43.85 parts by weight of ethylene resin (M6) and polyethylene
1.8 parts by weight of a lene resin (L1), the anatase diacid
10 parts by weight of titanium oxide pigment, 0.5 parts by weight of zinc stearate
The polyethylene resin composition according to Table 2 consisting of parts. As a polyethylene resin composition (Comparative Example 6)
And 89.5 parts by weight of polyethylene resin (L1),
Natase type titanium dioxide pigment 10 parts by weight, stearic acid
Polyethylene resin according to Table 2 consisting of 0.5 parts by weight of zinc
Composition. Further, a corona discharge is applied to the back resin layer surface of the resin-coated paper.
After the electric treatment, apply the following back coat coating solution on-machine.
Was. Colloidal silica: styrene based as dry weight
Latex = 1: 1 and polystyrene sulf
Sodium diacid 0.021 g / m^TwoOther suitable amount of coating aid, etc.
Backcoat coating liquid for latex (solid weight calculation)
0.21g / m^TwoFor image materials
A support was obtained. As described above, a resin-coated paper type image material
Polyethylene resin set for surface resin layer when manufacturing support
Molding processability of product and support for imaging material of obtained sample
As a method of evaluating the performance as
evaluated. The position for the surface resin layer during the production of the support for the image material
As an evaluation method for moldability of polyethylene resin composition
Measure the lateral length of the resin-coated part on the surface
Evaluate the degree of quin and generate streaks in the molten resin film
Of film breakage depending on the degree of
No, no surge, no flow due to draw resonance
Formability such as instability was comprehensively evaluated. Comment
The valuation criteria are: ◎; extremely good, ；: good, Δ; slightly
Poor, no practical problem, ×; poor practical problem
Degree. As an evaluation method of peeling unevenness, the above-mentioned manufacturing method is used.
6 hours after the start of production of the support for image materials under the conditions
The surface condition of the mirror surface on the front side of the support for imaging materials
Observed with oblique light to visually determine the degree of peeling unevenness
did. The evaluation criteria for the degree of occurrence of uneven peeling were as follows: ○:
Less occurrence of peeling unevenness, good smoothness, △: uneven peeling
Although there is a little occurrence, there is no practical problem. ×: Peeling
These problems occur frequently, indicating a certain degree of practical problems. The image forming layer of the image material support
As an evaluation method, a silver halide black-and-white
It carried out as follows using the photographic constituent layer. First,
Coating on the surface of the surface resin containing the titanium dioxide pigment
After the Rona discharge treatment, the photographic emulsion layer and its protective layer were
Black photographic paper was obtained. The photographic emulsion layer is hexachloroiridium
Potassium formate (III) 1.2 × 10^-FiveZera in the presence of g
Halogenation of 19.2 g of silver nitrate in 14.4 g of tin
ArBr / AgCl / produced by generating and dispersing silver particles
AgI = 95 / 4.5 / 0.5 (mol%) halogen
Optimum sensitivity with average particle diameter of 0.6μm
Substantially [1, 0, 0] sensitized in combination with gold sensitization
And neutral neutral silver halide photographic emulsions.
In addition to the gelatin required for the film, appropriate amounts of stabilizers, sensitizing dyes,
Fabric aids, hardeners, optical brighteners, thickeners, filter dyes
2.2g / m with silver nitrate^Two4.4 g / m with gelatin^Two
Was applied together with the protective layer. protection
Layer is 2g / m^TwoCoating aids and hardeners in addition to gelatin equivalent to
including. The coated and dried sample was dried at 35 ° C. and normal humidity for 1 hour.
After storing for 90 days, the sample was developed with D-72 developer for 90 seconds,
Scratch the table on the emulsion side at 1cm intervals horizontally and vertically
Make an eye-like wound, then rub the surface with your fingertips in running water,
Evaluation was made based on the degree of peeling of the photographic emulsion layer. As evaluation criteria
: ◎: No peeling of photographic emulsion layer, very good film coating
Good, ：: slight peeling of photographic emulsion layer, but good film coverage
Good, △: Some peeling of photographic emulsion layer, but practical with film
No problem, ×: Many peeling of photographic emulsion layer, with film
Represents some degree of practical problem. Table 3 shows the obtained results. [0070] [Table 1] [0071] [Table 2] [0072] [Table 3]From the results shown in Table 3, the polyethylene-based resin was mainly used.
Image covered with resin layer consisting of resin composition as component
In the material support, the polyethylene in the resin composition
-Based resin produced by polymerization using metallocene polymerization catalyst
Polyethylene resin and long chain branch produced by high pressure method
And a resin composition comprising the same.
Mw / Mn of the polyethylene resin component in the product is 4 or more
A support for an image material according to the present invention coated with a surface resin layer
The support (Examples 1 to 7) was made of a polyethylene resin composition.
Good formability, no uneven peeling and smoothness
Is good, and the coating of the photographic emulsion layer is good,
It can be clearly seen that this is an excellent support for image materials. Special
The metal meta in the polyethylene resin composition for the surface resin layer
Polyethylene resin produced by polymerization using a rocene polymerization catalyst
The content of
From the viewpoint of improvement effect, 50 to 95% by weight with respect to all the table resins
Is preferable (comparison between Examples 1 to 6 and Example 7).
I understand well. Also, a polyethylene resin composition for the surface resin layer
Mw / Mn as polyethylene resin component in
Is 5 from the viewpoint of moldability of the polyethylene resin composition.
And more preferably 7 or more (Example 1)
And Examples 5 to 6, Example 3, Example 2, and Example
4). On the other hand, samples outside the present invention (Comparative Examples 1 to 6)
It can be seen that each has a problem. Metal
Polyethylene produced by polymerization using talocene polymerization catalyst
When a resin composition containing only fat as a main component is used (Comparative Example
1 and Comparative Examples 3 and 4) have a problem that molding processability is poor.
Yes, it was produced by polymerization using metal metallocene polymerization catalyst
Polyethylene resin and long chain branch produced by high pressure method
Mw / M
Resin containing polyethylene resin whose n is less than 4 as a main component
Is used (Comparative Example 2 and Comparative Example 5),
Poor nature is a problem. In addition, the length produced by the high pressure method
Tree containing only polyethylene resin with chain branch as main component
When the oil composition was used (Comparative Example 6), uneven peeling occurred.
The problem is bad life. Further, Examples 1 to 7 and Comparative Examples 1 to 6
Similarly, after applying the back coat coating solution,
Until the paper is wound, a corona is applied to the front resin surface of the support.
Discharge treated, lime-treated gelatin 1.5 g, Paraoki
0.3% by weight of a 10% by weight solution of butyl benzoate in methanol
g, sulfosuccinic acid-2-ethylhexyl ester salt
0.45 g of a 5% by weight mixture of methanol and water
0.36% by weight aqueous solution of an amphoteric surfactant represented by
g undercoat with total weight adjusted to 100 g with water
The solution is coated with gelatin at 0.06 g / m^TwoEvenly so that
On-machine coating was performed to obtain a support for an image material. In addition,
When evaluating the true emulsion layer with a film, copy it onto the undercoat layer.
This was performed on a photographic paper coated with a true component layer. [0076] Embedded image Table 4 shows the obtained results. [0078] [Table 4] From the results in Table 4, it was found that the polyethylene resin was mainly used.
Image covered with resin layer consisting of resin composition as component
In a support for a material, a polyethylene-based resin composition
The resin is polymerized and produced using a metal metallocene polymerization catalyst.
Long chain branch produced by ethylene resin and high pressure method
Comprising a polyethylene resin having
Mw / Mn of the polyethylene resin component is 4 or more
Covered with the surface resin layer, and
A support for an image material according to the present invention in which a subbing layer is provided with thin
The holding body (Examples 8 to 14) is made of a polyethylene resin composition.
Good moldability, no peeling unevenness, smooth
Good photographic emulsion layer with excellent properties
Is a good support for imaging materials.
You. On the other hand, samples outside the present invention (Comparative Examples 7 to 12)
Means polyethylene with good photographic emulsion layer
Poor molding processability of resin composition or uneven peeling
It is understood that this is a problem due to the degree of poorness. Further, instead of the silver halide black-and-white photographic constituent layer,
Using the following silver halide color photographic constituent layer,
Except that a commercially available color developer is used instead of the 72 developer
Was carried out in the same manner as in Examples 1 to 7 and Comparative Examples 1 to 6,
The same results as in Examples 1 to 7 and Comparative Examples 1 to 6 were obtained. The silver halide color photographic component layer has a yellow color.
Blue-sensitive emulsion layer containing color coupler, intermediate containing color-mixing inhibitor
Layer, a green emulsion layer containing a magenta color-forming coupler,
UV absorbing layer containing a collector, red containing a cyan color coupler
8g / m2 in total gelatin^Two
contains. Each color sensitive emulsion layer is 0.6 g / m2 with silver nitrate.^TwoEquivalent to
Silver chlorobromide, and further produce, disperse,
In addition to gelatin necessary for film formation, an appropriate amount of antifoggant, sensitization
Dye, coating aid, hardener, thickener and appropriate amount of filter
Including dyes and the like. Further, in Examples 8 to 14 and Comparative Example 12,
Silver halide black-and-white photographic construction on used imaging material support
The following ink jet image receiving layer is applied instead of the
An ink jet image receiving material was prepared. As a result, the present invention
Image receiving material having image material support
The material is light as it looks because there is no uneven peeling of the support.
Although it was excellent in sensation, on the other hand, image materials outside the present invention
Ink-jet image receiving material having a support for
There is a problem that the appearance of glossiness is inferior due to the occurrence of many
Was something. The ink-jet image-receiving layer has a molecular weight of 70,000.
30% by weight gelatin aqueous solution of lukari-treated gelatin 30
g, sodium carboxymethyl cellulose (etherified
Degree of 0.7-0.8, viscosity of 2% by weight aqueous solution with B-type viscometer
37.5 g of an 8% by weight aqueous solution of
Epoxy compound (NER-010 manufactured by Nagase & Co., Ltd.)
0.3 g of a 5% by weight methanol solution of sulfosuccinic acid
-2- Ethylhexyl ester salt methanol and water 5
Coating solution consisting of 0.5 g of a weight% mixed solution and 31.7 g of pure water
7g / cm in solid content^TwoIt was formed by dispensing. [0085] According to the present invention, the side on which the image forming layer is provided is provided.
Support for imaging materials with the base paper surface coated with a polyethylene resin layer
The occurrence of uneven peeling during the manufacture of the carrier has been significantly improved.
Therefore, the apparent glossiness of the image material is high and the image formation
The layer has good film adhesion, good molding processability,
An excellent resin-coated paper-type image material support that can be produced in constant production
Can be provided.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Nobushige Ikeya 3-10 Shiodori, Kurashiki-shi, Okayama Pref. Inside Mizushima Plant, Mitsubishi Kasei Co., Ltd. Address: Mizushima Plant, Mitsubishi Chemical Corporation (56) References JP-A-2-308158 (JP, A) JP-A-5-66519 (JP, A) International Publication No. 92/017538 (WO, A1) (58) Survey Field (Int.Cl. ⁷ , DB name) G03C 1/79 B41M 5/00

Claims (1)

(57) [Claim 1] Paper is used as a substrate, and one side of the paper substrate on which an image forming layer is provided is covered with a resin layer composed of a resin composition containing a polyethylene resin as a main component. In the image material support, the polyethylene resin in the resin composition is a polyethylene resin produced by polymerization using a metal metallocene polymerization catalyst and a polyethylene resin having a long chain branch produced by a high pressure method. Do Ri, As a Mw / Mn (where Mw: weight average molecular weight, Mn: number representing the average molecular weight) Ri der 4 or more, and metal meta in the resin composition
Polyethylene resin produced by polymerization using a rocene polymerization catalyst
Fat content, the total polyethylene resin in the resin composition
Image material support, wherein 30 to 95 wt% der isosamples against.