JPH08248628A - Colored image formation material - Google Patents

Abstract

PURPOSE: To improve the dislocation of a support base material to be caused by heating and pressurization at the time when a color proof is prepared, by restricting the thermal contraction rate less than a prescribed value under special measurement of phisical properties of a film. CONSTITUTION: When the support base material is a film, the mechanical properties at the film thickness of 75μm of the support base material of a colored image formation material satisfy at least one of the following conditions: (1) The thermal contraction rate at 150 deg.C is to be 1% or less, preferably 0.5% or less in both directions of the mechanical direction MD and the tangential direction TD at the time of film formation of the film, and further the balance of MD/TD is to be kept or to be MD:MT=1:1. (2) The thermal contraction stress at 130 deg.C is to be 100g/cm<2> or more. (3) The fracture strength at room temperature is to be 20kg/mm<2> or more in both directions of the mechanical direction MD and the tangential direction TD at the time of film formation of the film, and further the balance of MD/TD is to be kept or to be MD:TD≈1:1.

Description

Detailed Description of the Invention [0001] The present invention relates to color printing, for example.
Colored images suitable for creating color proofs for color proofing
The present invention relates to an image forming material, and in particular, a so-called register mark.
The present invention relates to a colored image forming material with less deviation. [0002] BACKGROUND OF THE INVENTION As a pre-process of main printing in multicolor printing
To save time and time for proofing performed by
Raproofing sheet (also called color proof
Is well known in the art.
It Use a color proofing sheet for color proofing
As a method for producing a color transfer image, for example, Japanese Patent Laid-Open No.
-41830, the final reception of the colored image directly
Direct transfer method of transferring and laminating on paper, JP-A-59-9714
No. 0, No. 61-189535 gazette, the colored image.
Indirect transfer method that temporarily transfers the image onto a temporary (image-receiving) sheet
Formula, and the wear described in JP-A-56-50127.
The process of forming an image after transferring the color photosensitive layer to the image receiving paper
A method of repeating it can be mentioned. [0003] The above-mentioned transfer method is used.
Photosensitive transfer sheet for color proofing (color proofing sheet
For example, through a split mesh film for each color plate
Form a decomposed image on a support, and then receive an optional permanent image
An image can be formed by transferring it onto the material.
It Further, in the case of a multicolor image, the above separated image was transferred.
Repeat the process of transferring the separated image of another color onto the permanent support.
Can be obtained by returning. Conventionally, a color puller has been formed by using an image forming material.
If you want to create a
Is a method to perform registration using a register pin bar
It has been known. However, it can produce relatively stable accuracy
Even with the method using the pin bar, the variation in accuracy is completely suppressed.
It is not possible, and sometimes color shift that can be visually detected occurs
It was a problem. The present invention is applied when creating a color proof.
Improves the displacement due to the support caused by heat and pressure
The object is to provide an image forming material. [0006] [MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
The image forming material according to the present invention utilizes heat and pressure,
Support used in image forming materials for image formation
The body is a film, and the physical properties of the film are measured at 130 ° C.
Under normal conditions, the heat shrinkage rate is 1% or less, heat and pressure
Used in image forming materials that are used for image formation
The support is a film, and the physical property value of the film is 13
The heat stress should be 100g / cm or more under 0 ℃ measurement.
And image forming materials that use heat and pressure to form images
In the case where the support used is a film,
Breaking strength of the physical properties of aluminum 20kg / mm²That's all
And, [0007] In the present invention, the above-mentioned photosensitive transfer is caused as a cause of the positional deviation.
Due to the heat and stress applied when transferring the copy sheet
Solution, find out that the support is greatly expanded and contracted.
As a method of controlling the mechanical properties of the support with respect to heat and pressure
Or the support itself with metal or silica
By using a composite material with a thermoplastic resin, the expansion and contraction rate is low.
That is, to provide an image forming material with good positional deviation suppression
I was able to [0008] DETAILED DESCRIPTION OF THE INVENTION In the present invention, the support is a filler.
When the film thickness is 75 μm, the mechanical properties are (1) heat shrinkage
(150 ° C) is the machine direction during film formation (hereinafter MD)
And 1% or less in both the width direction (TD)
It is preferably 0.5% or less, and MD / TD
Balance (MD: TD ≈ 1: 1),
(2) Heat absorption stress (130 ° C) is 100 g / cm or more,
That is, (3) breaking strength (normal temperature) is
In both machine direction (hereinafter MD) and width direction (hereinafter TD)
About 20 kg / mm²It is above, and further, this breaking strength
The MD / TD balance (MD: T
At least one of the following is satisfied: D ≈ 1: 1)
It is a support made of a material. On the other hand, thermoplastic resin is used for metal (aluminum foil etc.)
Layered composite support or silica as thermoplastic resin
Even if the composite support is formed on the sheet after kneading
Good. The image forming process of the present invention is limited in time.
For example, the transfer process may be a photosensitive transfer between two pairs of rollers.
The image-receiving sheet side
Transfer the image to and repeat this process to create a multicolor image.
Characterized by obtaining an image. The roller temperature is preferably 60 to 200 ° C.
And more preferably 70 to 150 ° C. Roller pressure is 0.1-10 kg / cm²
Is preferred, and more preferably 1-5 kg / cm²And
It The mechanical properties of the support are measured according to the following criteria.
It Heat shrinkage at 130 ° C according to ASTM D1204
heating. Heat absorption stress parallel to MD from 75μm film
Prepare a test piece with a width of 10 mm and a length of 100 mm and load it at a constant load.
130 ° C. value when weight is applied and the temperature is increased at + 10 ° C./min.
Breaking strength According to JIS C2318. The basic embodiment of the present invention is an image forming material.
There is a colored photosensitive layer on the support, and a protective layer if necessary.
A colored image forming material having
With a structure having a release layer between the body and the colored photosensitive layer, Support: PET, polypropylene satisfying the conditions of the present invention
Film of about 10 to 100 μm, or the present invention
In order to satisfy the conditions of
Made of a composite material with a thickness of 10-100 μm
thing, Release layer: ethylene-vinyl acetate copolymer, ionomer
Resin 5 to 50 μm, Colored photosensitive layer (positive type); 0.1 to 1.2 mmol / m²
Of o-quinonediazide and 2% by weight or more and 10% by weight or less
Full, especially containing 5% or more and less than 10% by weight of colorant
0.1 g / m²~ 5g / m²With a film thickness of Protective layer: Water-soluble polymer (PVA, cellulose, etc.) 0.0
1 to 3 μm, and as a specific example
Is required on 75 μm PET that satisfies the conditions of the present invention.
From ethylene-vinyl acetate resin with a thickness of 30 μm
And a colored photosensitive layer (for example, o
-Quinonediazide + novolak resin, acrylic resin or
Vinyl acetate resin), and if necessary,
Protective layer [water-soluble polymer (cellulose, polyacrylic
Acid, modified vinyl acetate resin)]. A preferred embodiment of the present invention is a colored photosensitive layer.
Is 1,2-naphthoquinonediazide-4-sulfonyl chloride
Loride or 1,2-naphthoquinonediazide-5-
Sulfonyl chloride and cresol novolac resin (special
With p-cresol novolac resin)
(The esterification rate is preferably 30 to 100 mol%.)
It is to contain. The present invention will be described in more detail below. Picture of the invention
The image forming material is used because it forms images using heat and pressure.
Regarding the previous colored photosensitive sheet (hereinafter referred to as sheet),
Storage and maintenance to prevent problems such as blocking
Must have Below is an example of coloring interleaving paper
Blocking occurs when sandwiched between photosensitive sheets.
Describe the packing method. After stacking a predetermined number of sheets, the balls
It is sandwiched between pieces of paper, put in a moisture-proof bag, and stored in an outer box. Seat features
Due to the nature, the stacked sheets stick together at high temperature.
Tends to end up (blocking), especially above 40 ° C
This phenomenon is remarkable and adversely affects the performance during image formation.
It As a measure for this, there is a possibility that the space between sheets
It can be prevented by inserting paper one by one. As interleaving paper, polyethylene is applied to one side of the paper.
It is desirable to use a laminate. Paper is front
Since the surface is uneven, one side is finished smoothly,
Both sides of the interleaving paper can be obtained by laminating Ren on the uneven surface of the paper.
The surface should be smooth and contact with the sheet should be good.
You can Polyethylene has low contact resistance and slip characteristics
The interleaving paper is in contact with the photosensitive side of the sheet.
By inserting it, the photosensitive layer of the sheet is peeled off even at high temperature.
It is possible to provide high-quality products without the need for them. The paper is preferably neutral paper and has a basis weight of 22 to 50.
g / m²(JISP-8124) is suitable. The basis weight is
22 g / m²If it is less than the
Wrinkles tend to occur, and the wrinkles are on the surface of the photosensitive layer of the sheet.
It makes a strong contact, which hinders performance. 50 g / m²To
If it exceeds, productivity is poor and cost is high. Polyethylene has a melt index (JI
SK-6760) is 5 to 12 g / 10 minutes, density (JIS
K-6760) is 0.91 to 0.93 / cm^Three, The thickness is
A range of 10 to 30 μm is preferable for performance and production.
Yes. The polyethylene layer should have a smooth surface.
However, even if it is a semi-mat, there is no particular problem in practice. Basis weight is 27 / m^Three, 33 μm thick paper (castle
Mountain paper BSSMIP 27) with a density of 0.918 / cm
^ThreePolyethylene with a melt index of 8.5 g / 10 min
Len resin (Mitsubishi Chemical PE-LD L340) 15μ
The interleaving paper laminated with m thickness of 510 × 540 mm
Inserted between the sheets and tested, the result is 40 ~ 50 ℃
The sheet was good at high temperature without blocking. Photosensitivity contained in the colored photosensitive layer in the present invention
Various types of active compositions can be used, but the active
When exposed to light rays, it turns into its molecular structure in a short time.
Change in solubility in the solvent,
Exposed areas or unexposed areas when different solvents are applied.
Monomers and prepolymers that dissolve and remove
Alternatively, all compounds such as polymers are included. Usable
Examples of effective photosensitive compositions include reduced solubility in exposed areas
As a so-called negative / positive type,
Representative of the esterification of nyl alcohol with cinnamic acid
Photocrosslinking type photosensitive resin system; diazonium salt and its
Polycondensation of polyvinyl alcohol, polyvinylpyrrolide
System condensed with amine, polyacrylamide, etc .;
Binder such as solidified rubber using zido compound as photo-crosslinking agent
There is a system that is linked to the
It is also possible to use a photosensitive resin that utilizes photopolymerization. Well
So-called positive / positive tie that increases the solubility of exposed areas
For example, o-quinonediazide is photosensitive
Examples of the material include a photosensitive resin composition. Photosensitive group used in the colored photosensitive layer of the present invention
As the composition, known positive type photosensitive compositions / negative type feeling
Photosensitive composition can be used, but positive type photosensitive composition
As a product, a photosensitive material containing an o-quinonediazide compound
It is preferable to use a volatile composition. o-quinone diazide
Any compound can be used as long as it can function as a photosensitizer.
Can be used. Specifically, for example, 1,2-ben
Zoquinonediazide-4-sulfonyl chloride, 1,2
-Naphthoquinonediazide-4-sulfonyl chloride,
1,2-naphthoquinonediazide-5-sulfonylchlora
Id, 1,2-naphthoquinonediazide-6-sulfonyl
Compounds containing chloride and hydroxyl and / or amino groups
A condensed compound is preferably used. Examples of the hydroxyl group-containing compound include trihydric acid
Droxybenzophenone, dihydroxyanthraquino
Resin, bisphenol A, phenol novolac resin,
Zolcin benzaldehyde condensation resin, pyrogallol acetate
There are ton condensation resins. Also, as an amino group-containing compound
For example, aniline, p-aminodiphenylamine,
p-aminobenzophenone, 4,4'-diaminodiphe
Nylamine, 4,4'-diaminobenzophenone, etc.
It Including what has been described here, quinone diazide
Regarding the de-compounds, J. Koza (J. Kosa
r) "Light Sensitive System" (Light
  Sensitive System (New York
City, John Wiley and Sons, Inc., 1965
Line), and Nagamatsu and Inui “Photosensitive Polymer” (Kodansha, 1
1977). O-Naphthoki preferably used in the present invention
The amount of nondiazide depends on its skeletal unit [0028] [Chemical 1] Is 1.2 mmol / m²The following is preferred
0.1 to 1.0 mmol / m²Is preferred,
Especially 0.2-0.8 mmol / m²Is good. Negative photosensitive
As the polymerizable composition, a photopolymerizable photosensitive composition is preferable.
Specifically, for example, it is generally used as a photopolymerizable compound.
Any of the above can be used. For example
Phosphoric acid, methacrylic acid, acrylic acid esters and methacrylic acid
A small amount selected from the group of compounds consisting of phosphoric acid esters.
At least one compound can be used. For example,
Ethylene glycol diacrylate, glycerin tria
Acrylate, polyacrylate, ethylene glycol di
Methacrylate, 1,3-propanediol dimethac
Relate, 1,2,4-butanetriol trimethacrylate
Rate, polyethylene glycol dimethacrylate,
Limethylolethane triacrylate, pentaerythri
Tall dimethacrylate, pentaerythritol trime
Tacrylate, pentaerythritol tetramethacrylate
, Pentaerythritol diacrylate, pentae
Lithritol triacrylate, pentaerythritol
Tetraacrylate, dipentaerythritol polyac
Relate, 1,3-propanediol diacrylate,
1,5-Pentanediol dimethacrylate, polyethylene
Lenglycol bisacrylate or bismethacrylate
However, it is not limited to these.
Not of. The negative photosensitive layer contains a photopolymerization initiator.
Can be made. In this case, the photopolymerization initiator is optional
However, the one with less absorption in the visible region is more preferable.
Examples of such compounds include the following compounds.
Can be However, it is not limited to these. That is,
Benzophenone, Michler's ketone [4 ', 4'-bis
(Dimethylamino) benzophenone], 4,4'-bis
(Diethylamino) benzophenone, 4-methoxy-
4'-dimethylaminobenzophenone, 2-ethylan
Traquinone, phenanthraquinone, and other aromatics
Aromatic ketones such as ketones, benzoin, benzoi
Methyl ether, benzoin ethyl ether and benzene
Benzoin ethers such as zoin phenyl ether
, Methylbenzoin, ethylbenzoin and other
Benzoins, and 2- (o-chlorophenyl)-
4,5-diphenylimidazole double body, 2- (o-ku
Lolophenyl) -4,5- (m-methoxyphenyl) ii
Midazole dual, 2- (o-fluorophenyl)-
4,5-diphenylimidazole double body, 2- (o-me
Toxoxyphenyl) -4,5-diphenylimidazole
2- (p-methoxyphenyl) -4,5-dife
Nylimidazole dual, 2,4-di (p-methoxyphenyl)
Phenyl) -5-phenylimidazole double body, 2-
(2,4-dimethoxyphenyl) -4,5-diphenyl
Imidazole duplex, 2- (p-methylmercaptofe)
Nil) -4,5-diphenylimidazole double body, and
U.S. Pat. No. 3,479,185, British Patent 1,047,
569 and US Pat. No. 3,784,557
2,4,5-triacryl-like compounds similar to those described in
Mention may be made of the rumidazole duplex. Other photopolymerizable compounds include 2,4-
Using thioxanthones such as diethyl thioxanthone
You can also. In this case, known as a photopolymerization accelerator
Compounds such as isoamyl p-dimethylaminobenzoate
Ester, ethyl ester of p-dimethylaminobenzoate
L, N-methyldiethanolamine, bisdiethylami
Nobenzophenone or the like can be used. Next, the photosensitive composition of the present invention is a known high-quality composition.
It may contain binders such as molecular compounds and synthetic resins.
In particular, vinyl carboxylate represented by the following general formula
Contains a polymer compound having a polymerized unit in its molecular structure
Preferably. [0033] Embedded image However, R represents an alkyl group and has a substituent.
It also includes an alkyl group. Polymerization of the above structure
If it is a compound, it can be used arbitrarily, but the above general
Vinyl carboxylate for forming polymerized units of the formula
The following examples are preferable as the ester monomer.
Yes. The name and chemical formula are shown together. [0035]   1 Vinyl acetate CH₃COOCH = CH₂   2 Vinyl propionate CH₃CH₃COOCH = CH₂   3 Vinyl butyrate CH₃(CH₂)₂COOCH = CH₂   4 Vinyl pivalate (CH₃)₃COOCH = CH₂   5 Vinyl caproate CH₃(CH₂)_FourCOOCH = CH₂   6 Vinyl caprylate CH₃(CH₂)₆COOCH = CH₂   7 Vinyl caprate CH₃(CH₂)₈COOCH = CH₂   8 Vinyl laurate CH₃(CH₂)_TenCOOCH = CH₂   9 Vinyl myristate CH₃(CH₂)₁₂COOCH = CH₂ 10 Vinyl palmitate CH₃(CH₂)₁₄COOCH = CH₂ 11 Vinyl stearate CH₃(CH₂)₁₆COOCH = CH₂ 12 Versatic vinylate [0036] Embedded image (R¹, R²Is an alkyl group,
The sum is 7. That is R¹+ R²= C₇H₁₆Form) The polymer compound is one of vinyl carboxylate
Combined polymer may be used, carboxylic acid vinyl ester
A polymer obtained by copolymerizing two or more of
Vinyl ester of boric acid and other monomer copolymerizable therewith
It may be a copolymer with an arbitrary component ratio with. In combination with the polymerized unit represented by the above general formula
Examples of the monomer unit that can be used include
Tylene, propylene, isobutylene, butadiene, iso
Ethylenically unsaturated olefins such as prene, such as styrene
Ren, α-methylstyrene, p-methylstyrene, p-
Styrenes such as chlorostyrene, such as acrylic acid,
Acrylic acids such as tacrylic acid, eg itaconic acid, maleic acid
Unsaturated aliphatic dicarboxylic acids such as in acid and maleic anhydride
, Such as diethyl maleate, dibutyl maleate,
Di-2-ethylhexyl maleate, dibutyl fumarate
And di-2-ethylhexyl fumarate, etc.
Diesters of boric acid, such as methyl acrylate, acetic acid
Ethyl phosphate, n-butyl acrylate, iso acrylate
Butyl, phenyl acrylate, α-chloroacrylate
Α such as chill, methyl methacrylate, ethyl ethacrylic acid
-Methylene aliphatic monocarboxylic acid esters, for example
Nitriles such as acrylonitrile and methacrylonitrile
Amides such as acrylamide, eg acryl
Luanilide, p-chloroacrylanilide, m-nit
Low acrylic anilide, m-methoxy acrylic anilide, etc.
Anilides such as methyl vinyl ether and ethyl vinyl
Nyl ether, isobutyl vinyl ether, β-chloro
Vinyl ethers such as ethyl vinyl ether, vinyl chloride
, Vinylidene chloride, vinylidene cyanide, eg
For example, 1-methyl-1-methoxyethylene, 1,1-dime
Toxyethylene, 1,2-dimethoxyethylene, 1,1
-Dimethoxycarbonylethylene, 1-methyl-1-di
Ethylene derivatives such as troethylene, eg N-vinyl
Pyrrole, N-vinyl carbazole, N-vinyl indo
, N-vinylpyrrolidone, N-vinylpyrrolidone, etc.
There are vinyl monomers such as N-vinyl compounds. this
These monomer units have a structure in which unsaturated double bonds are cleaved
Present in child compounds. As the polymer compound used in the present invention,
It is particularly preferable that the vinyl acetate polymer unit is included in the molecular structure.
To have. Among them, vinyl acetate polymer units
Having 40 to 95% by weight, number average molecular weight (MN)
Of 1,000 to 80,000, weight average molecular weight
It is preferable that the (MW) is 500 to 200,000. More preferably, vinyl acetate polymerized units (special
From 40 to 95% by weight) and vinyl acetate
High content of long-chain carboxylic acid vinyl ester polymerized units
Sub-compounds are preferable, especially number average molecular weight (MN) is 2,000
0-60,000, weight average molecular weight (MW) is 10.0
It is preferably from 0 to 150,000. In this case, vinyl acetate is used for copolymerization with vinyl acetate.
Monomer constituting polymer compound having nil polymer unit
Is any as long as it can form a copolymer.
, For example, it can be arbitrarily selected from the monomers exemplified above.
it can. In the present invention, as a polymer compound,
The copolymers that can be used are shown by their monomer components.
To list. However, as a matter of course,
However, the present invention is not limited to this. 1 Vinyl acetate-ethylene 2 Vinyl acetate-styrene 3 Vinyl acetate-crotonic acid 4 Vinyl acetate-maleic acid 5 Vinyl acetate-2-ethylhexyl acrylate 6 Vinyl acetate-di-2-ethylhexyl maleate 7 Vinyl acetate-methyl vinyl ether 8 Vinyl acetate-vinyl chloride 9 Vinyl acetate-N-vinylpyrrolidone 10 Vinyl acetate-vinyl propionate 11 Vinyl acetate-vinyl pivalate 12 Vinyl acetate-vinyl versatate 13 Vinyl acetate-vinyl laurate 14 Vinyl acetate-vinyl stearate 15 Vinyl acetate-vinyl versatate-ethylene 16 Vinyl acetate-vinyl-2-ethyl versatate
Hexyl acrylate 17 Vinyl acetate-vinyl versatic acid-lauric acid
vinyl 18 Vinyl Acetate-Varsatic Acid Vinyl-Crotonic Acid 19 Vinyl propionate-vinyl versatate 20 Vinyl propionate-vinyl versaticate
Rotonic acid 21 Pivalic acid-vinyl stearate-Maleic acid The photosensitive composition of the present invention is used to prepare an image.
The imaging element can be constructed. For example, color pull
A colored image-forming material, such as when used as a roof.
You can Colored photosensitive layer of colored image-forming material in this case
Are removed in an imagewise manner by development following imagewise exposure and coloring
It forms an image. In the colored photosensitive layer, a dye and
/ Or pigments are added, but especially pigments are added.
And are preferred. Especially when using it for color proofing,
The desired constant colors, namely yellow, magenta, cyan, black
You will need pigments and dyes that match the color of the rack.
Other metal powders, white pigments, fluorescent pigments, etc. are also used. Departure
When applying light to a color proof,
Use of many pigments and dyes known in the art
Can be. (C.I means color index
). Victoria Pure Blue (CI 42595) Auramine (C.I. 41000) Catillon Brilliant Flavin (CI Basic 1
3) Rhodamine 6GCP (C.I. 45160) Rhodamine B (C.I 45170) Safranine OK 70: 100 (CI 50240) Erioglaucine X (CI 42080) First Black HB (C.I. 26150) No. 1201 Lionol Yellow (C.I. 2109
0) Lionol Yellow GRO (CI 21090) Shimla First Yellow 8GF (CI 2110
5) Benzidine Yellow 4T-564D (C.I. 2109
5) Shimla Fast Red 4015 (C.I. 1235
5) Lionol Red 7B4401 (CI 15830) Fast Gen Blue TGR-L (CI 7416
0) Lionol Blue SM (C.I. 26150) Mitsubishi Carbon Black MA-100 Mitsubishi Carbon Black # 30, # 40, # 50 When a coloring agent is used in the present invention, coloring
In the case of pigments, the ratio of the colorant / non-colorant component of the photosensitive layer
Content is preferably 2% by weight or more, for example 5 times
The amount is not less than 10% by weight. In the present invention, copper phthalate
An anine pigment may be used. Also, coloring in the present invention
The film thickness of the photosensitive layer is not particularly limited, and the target optical density,
Type of colorant used in the colored photosensitive layer (dye, pigment, pigment
Carbon black) and its content, known to those skilled in the art
It can be determined by the method of
Ku 0.1 g / m²~ 5g / m²Is. In the practice of the present invention, the
Add plasticity, coatability improver, etc. if necessary
You can also. Various low molecular weight compounds as plasticizers
, Such as phthalates, triphenylphosphite
As the salts, maleic acid esters, and coatability improvers
Surfactants such as fluorinated surfactants, ethyl cellulose
Nonionic activity represented by s-polyalkylene ether
Examples include sex agents. Image forming material using the photosensitive composition of the present invention
Dye, especially when forming a colored image forming material, a colored photosensitive layer
Is a colored layer (or colored photosensitive layer) consisting of a colorant and a binder
And a photosensitive layer composed of a photosensitive composition.
Can also be. In this case, which layer is on the support side
It does not matter if it is done. Image forming material using the photosensitive composition of the present invention
There is no particular limitation on the support to be used when composing the material.
Preferably satisfies the conditions of claim 1, 2 or 3 of the present invention.
A transparent support is used. As a transparent support,
Reester film, especially biaxial that satisfies the conditions of the present invention
Stretched polyethylene terephthalate film is exposed to water and heat
It is preferable in terms of dimensional stability. Other acetates
Film, polyvinyl chloride film, polyethylene film
Rum, polypropylene film, polyethylene film
Etc. which satisfy the conditions of the present invention can be used. The protection used in the present invention as necessary.
The protective layer is a discontinuous phase that is mixed homogeneously or nonuniformly in the continuous phase.
With a layer having. In the present invention, the continuous phase has scratch resistance
A good polymer or the like is used. Preferred for the present invention
The high molecular polymer used is not
Those that qualitatively provide a light-transmitting coating layer are preferable, for example
Polyethylene terephthalate, polypropylene, etc.
Although the resin used for the film base is also used,
Especially in the light, soluble in water or the developer used
Those that do are preferred. In addition, the drying process and post-coating layer formation
Does not cause cracks or the like during handling, and also provides good adhesion.
High polymer polymerization with moderate softness and toughness
It is desirable to use the body. Also its gas permeability
Is appropriately selected according to the type of photosensitive composition used.
Is preferred. That is, dew such as o-quinonediazide
Gas when it is a photosensitive composition that generates gas when exposed to light
It is preferable to provide a protective layer with high transparency, and photopolymerization
When using a photosensitive composition of
It is preferable to provide a protective layer. Specific examples of such high molecular weight polymers
Is polyvinyl alcohol; vinyl ether, acrylic
Acid, acrylic acid ester, methacrylic acid, methacrylic acid
Homopolymers such as esters or copo containing them
Limmer; Soluble polyamide; Ethyl cellulose, Butyl
Cellulose, hydroxyethyl cellulose, carboxy
Methyl cellulose, hydroxypropyl methyl cellulose
Su, methyl cellulose, hydroxypropyl cellulose
Examples thereof include cellulose derivatives and the like. this
Others, polyvinyl acetate, methyl vinyl ether, anhydrous male
In-acid copolymer, polyvinylpyrrolidone, gelatin,
Labia gum, polyethylene oxide, water-soluble polyester
There is also no particular limitation on the thickness, but it is preferable.
Is 0.001 to 5 μm, particularly preferably 0.01 to 3 μm
m. The image forming material transfers the image to the material to be transferred.
It can be used in the form. Material to be transferred at this time
Transfer to the top efficiently, and the support after the image transfer
In order to facilitate peeling, that is, to enhance image transferability and support.
Between the release layer with the carrier and the image forming layer (colored photosensitive layer)
In order to improve the releasability,
Processing or molding, or a release layer on the surface of the support
They can be provided and will be described later. In the present invention, the image forming material of the present invention is exposed.
.Development to form an image portion, and at least the formed image
Transfer the image area to the material to be transferred (such as real paper) to display the transferred image.
I will get it. The present invention can be applied to, for example, a multicolor image forming method.
One of the basic methods is to
On the street. First color coloring image The first color coloring image is formed on the image forming material.
And transfer at least the colored image to the transferred material
Then, the support is peeled off. Also, for the second color coloring image forming material
After the second color coloring image was formed, it was formed along with it.
The second color registration mark image is the first color registration mark image on the transfer material.
And the second color on the first color coloring image.
Transfer the colored image, peel off the support, and match the two colors.
Get the image. Similarly, the third and fourth colors
The image is also transferred onto the transfer material to obtain a multicolor image. Also,
In some cases, this multicolor image is indirectly transferred onto another transfer material.
Sometimes, a multicolor image is obtained by copying. In the present invention, the image-forming material is usually
Imagewise exposed through a flat screen color separation mask etc. and then developed
And an image is formed. The exposure of the image forming material
For example, the side having the photosensitive layer of the image forming material and the positive document fill
This is performed with actinic rays by overlapping the support side of the membrane. After exposure
The image obtained on the support is directly imaged only in the image area.
It is in the form of being contacted, transferred onto a material to be transferred, and laminated. Immediately
Then, only the colored image layer that forms the image is transferred and
Layered. That is, first, the transparency of the colored image forming material is
On the side of the light support with the photosensitive layer, disassemble the mask (original positive
Film is attached to the support side of the film), and the actinic ray is
And imagewise exposed. Do this for the other three colors
To do. Next, for each exposed material,
Image of the first color after being developed with more liquid, washed with water and dried
Overlay with the transfer surface of the receiving material (image receiving material, actual paper, etc.)
After transferring the image to the image receiving material side, the transparent support
Is peeled off to obtain a transfer image of the first color. The remaining 3 colors
Match the images of and stack them, and transfer the remaining 3 times
Do the final color proof. Heat and pressure are applied during the above transfer.
Examples of the image receiving material include high quality paper and art.
Paper such as coated paper, coated paper, polyester film, acete
Plastic film, polypropylene film, etc.
Film, aluminum foil, metal foil such as copper foil, or
Are composite materials thereof. The transfer onto the surface to be transferred is efficiently performed, and
In order to facilitate the peeling of the support after the image transfer, the support
The upper part of the surface is made releasable, or a release layer is provided on the support.
Set up. In the present invention, these are called release layers. Release layer
The thickness is preferably in the range of 5 μm to 50 μm. Mold release
The resin used for the layer has a softening point of -30 ° C to 15 ° C.
The thing of 0 degreeC is preferable. The softening point temperature here is VI
It is a value indicated by the CAT softening point or the ring and ball method. In the present invention
Specifically, the following are listed as preferable resins.
Can be Poly, such as polyethylene and polypropylene
Olefin. Ethylene and vinyl acetate, ethylene and acrylic
Ester, ethylene and ethylene such as acrylic acid
Polymer. PVC. Such as vinyl chloride and vinyl acetate
Polyvinyl chloride copolymer. Polyvinylidene chloride. Vinyl chloride
Redene copolymer. polystyrene. Styrene and anhydrous malay
Styrene copolymers such as acid. Polyacrylic acid aesthetic
Le. Polyester resin. Polyurethane resin. Acrylic acid
Copolymerization of esters and acrylic esters such as vinyl acetate
body. Polymethacrylic acid ester. Methacrylic acid meth
Of vinyl acetate and methyl methacrylate and acrylic acid
A methacrylic acid ester copolymer such as. Polyvinyl acetate
Le. Vinyl acetate copolymer. Vinyl butyral resin. Nye
Ron, Copolymer nylon, N-alkoxymethylated Nylo
Polyamide resin such as Synthetic rubber. Petroleum resin. Chloride chloride
M Polyethylene glycol. Polyvinyl alcohol
Idrozin phthalate cellulose derivative, cellulose acetate
Cetate phthalate, cellulose acetate succine
To. Shellac. wax. Ionomer resin. This
The ethylene-vinyl acetate copolymer is particularly preferable. Ethylene-vinegar preferably used in the present invention
As vinyl acid vinyl copolymer resin, it occupies in the copolymer resin
Vinyl acetate in the range of 5% to 33% by weight
Preferably, the VICAT softening point of the resin is 80 ° C. or higher.
It is preferably below. Also, the ethylene-vinegar of the present invention
The vinyl acetate copolymer resin layer has a softening point of substantially 80 ° C.
Various polymers, supercooled substances, interfaces
Activators and release agents can be added. On the support, ethylene-vinyl acetate copolymer
As a method of providing the resin layer, 1) Add an ethylene-vinyl acetate copolymer resin layer such as toluene
Apply the solution dissolved in the organic solvent on the support and dry it.
A method of providing an ethylene-vinyl acetate copolymer resin layer,
2) Polyvinyl acetate, polyvinyl chloride, epoxy resin,
Polyurethane resin, heaven Adhesive solution of natural rubber, synthetic rubber, etc. dissolved in organic solvent
And then apply these adhesives on the support, then heat
Dry with air or heat and then dry with ethylene-vinyl acetate.
Layers of the copolymer resin film and press-bond under heating
Laminating, so-called dry laminating method, 3) Ethylene and vinyl acetate, ethylene and acrylic acid ester
Ter copolymer, polyamide resin, petroleum resin, rosin
The mixture of waxes and waxes is used as an adhesive.
While maintaining the molten state by heating as it is,
Blade method, roll coating method, gravure method, liver
Immediately after applying by the scroll method etc., ethylene-acetic acid
If necessary, attach a vinyl copolymer resin film
By heating to a high temperature and then cooling
The so-called hot melt laminating method, 4) Keep ethylene-vinyl acetate copolymer resin in molten state
Then, extruded into a film with an extruder,
The support while it is in a state of being pressed and laminated.
Extruded laminating method, 5) A film to be a support is formed by a melt extrusion method.
At this time, using a plurality of extruders, molten ethylene-acetic acid
With vinyl copolymer resin, the support frame can be
Form an ethylene-vinyl acetate copolymer resin layer on the film
A so-called co-extrusion method, and the like. In the present invention, the image forming material is developed.
The developing solution used for developing is a developing action for developing the material to be processed.
Any of the above can be used.
Preferably, a current agent containing an alkaline agent and an anionic surfactant is used.
It is better to use an image liquid. It is also possible to use a negative / positive common liquid
it can. Alkali agents that can be used include (1)
Sodium formate, potassium silicate, potassium hydroxide, water
Sodium oxide, lithium hydroxide, secondary or tertiary acid chloride
Acid sodium or ammonium salt, sodium metasilicate
Inorganic alkali such as lithium, sodium carbonate, ammonia
Agent, (2) mono, di, or trimethylamine, mono,
Di- or triethylamine, mono- or di-isopropyl
Luamine, n-butylamine, mono, di, or trie
Tanolamine, mono, di, or triisopropano
Organics such as ruamine, ethyleneimine, ethylenediimine
Examples thereof include amine compounds. As an anionic surfactant which can be used
Is (1) Higher alcohol sulfates (for example, lauri
Sodium salt of rucohol sulphate, octylua
Ammonium salt of rucor sulfate, lauryl al
Ammonium salt of chorusulfate, disodium
Alkyl sulfate, etc.), (2) Aliphatic alcohol phosphate ester salts (for example,
Cetyl alcohol phosphate sodium salt, etc.) (3) Alkylaryl sulfonates (for example, dode
Silbenzenesulfonic acid sodium salt, Isopropylna
Phthalene sulfonic acid sodium salt, dinaphthalene sulfo
Acid sodium salt, sodium metanitrobenzene sulfonate
(Salt, etc.) (4) Alkyl amide sulfonates [0067] [Chemical 4] (5) Sulfonic acid of dibasic aliphatic ester
Salts (eg sodium dioctyl sulphosuccinate)
Tellurium, sodium succinate dihexyl ester, etc.) (6) Formaldehyde of alkylnaphthalene sulfonate
Hyd condensate (for example, sodium naphthalene sulfonate)
Formaldehyde condensate of). Any combination of alkaline agents and anionic surfactants
Can be used. Most preferred embodiment of the invention, especially preferred
The new image forming material satisfies the conditions of the invention as a support.
Provide a release layer on the transparent PET base, and further on it
A photosensitive layer is provided. Then, the photosensitive layer is heated
It becomes easier to peel from the release layer. Photosensitive layer is pigment, photoconductor
And a photopolymer consisting of a binder
It The photosensitive layer changes to a compound that dissolves easily in the developer when exposed to light.
Dissolves in a positive solution or where it is exposed to light
There is a negative type that becomes difficult. There are four types of image forming materials
There are colored photosensitive sheets, and their color is eg
Y, M, C and BK. Further, the image forming material is provided on the surface side of the photosensitive layer.
Provide an overcoat layer (protective layer) and also the surface of the support
A backing coat layer (back layer) may be provided on the side,
This overcoat layer and backing coat layer are essential
It is not a thing, but it is provided as necessary for protection. [0071] EXAMPLES Examples of the present invention will be described below together with comparative examples.
For example. However, the present invention is not limited to the examples described below.
It is not limited. Measurement of physical properties of the support of the present invention
The method was performed as follows. Heat Shrinkage Specimen 25 x 2 in accordance with ASTM D1204
Measure the shrinkage after heating 5 cm at 150 ° C for 30 minutes
Was. Width of heat absorption stress of 75μm parallel to MD 10
Prepare a test piece of 100 mm x 100 mm and load 100 g
Heating at a heating rate of 15 ° C / min.
The film stretching stress was measured. Breaking strength MD method and TD method according to JIS C2318
For each direction, the test piece 15 x 200 mm
When tensile cut with Ron at a speed of 200 mm / 1 minute
The tensile load and the elongation were measured and converted. Examples 1 to 3 (1) Preparation of colored photosensitive sheet Release layer: 3 types of support with 75 μm thick biaxially stretched poly
As ethylene terephthalate film (width 65 cm)
Ethylene-vinyl acetate copolymer resin (Mitsui DuPont Chemi
Calf EVAFLEX P-1405; vinyl acetate
Extrusion of content 14% by weight, VICAT softening point 68 ° C)
Then, a 25 μm thick release layer is formed by the laminating method.
Was. These three types of polyethylene terephthalate film
The physical properties of are shown in Table 1. [0073] (3) Colored photosensitive solution A: Direct transfer type (photopolymerization type) Polymer solution 400g   Polyester (Byron 300, Toyobo) Tetraethylene glycol diacrylate (A-4EG, Shin Nakamura Chemical) 6g 2-Hydroxy-2-methyl-propiophenone 4.3 g (Dicure-1173, made by Merck)   Disperse the following pigments in this sensitizing solution with the following composition 5 times by red devil dispersion. A pigment was mixed into the solution to prepare a photosensitive layer solution. Photosensitive solution 136g 6.5g each of the following pigments <Pigment> Black; Carbon black MA-100 (Mitsubishi Chemical
Made) Cyan; Lionol Blue FG-7330 (Toyo Ink
Made) Magenta; Lionol Red 6BFG-4219X (East)
(Made by Western ink) Yellow; NO. 1206 Lionol Yellow (Toyoi
(Made by Nki) As described above, the colored photosensitive solution is applied onto the release layer by a bar.
Apply using a coater to obtain a dry film thickness of 2.0 μm
And make 3 kinds of 4 color negative type colored photosensitive sheets
Was. (2) Treatment process Next, a decomposed mesh film for dimensional accuracy evaluation (B2 support in the center)
There is a color-separated mesh film from Izu, and people around it
Enclosed by eye line drawing; 520 x 820 mm Konica
Evaluation film) and the colored photosensitive sheet, and
Image exposure with printer (Dainippon Screen)
Was. The size of the colored photosensitive sheet used is 600 × 9
00 mm, the hole of the resin pin is exposed in the longitudinal direction.
It is opened in front of the light, and it is placed in each exposure and transfer operation for 4 colors.
Make sure the displacement does not shift significantly (Dimensional accuracy can be evaluated.
Support so that it falls within the range). Image register (art paper)
It is fixed to the roller on the side and images are formed on the art paper in sequence.
Please align the colored photosensitive sheet of with the pin bar.
, Yellow, magenta, cyan, black in that order.
Heat the paper so that the colored photosensitive layer is in contact with the paper surface.
The image was transferred through the rollers. Transfer conditions are roller
Temperature 120 ℃, Nip pressure 4kg / cm^{It was 2. [0077]} (3) Positional deviation measurement Positional deviation measurement is The side where the pin hole of the register pin bar exists is upward.
The four corners (top, bottom, left and right)
Misalignment / vertical misalignment is upper right a, upper left b, lower right c, lower left d
Measure with a loupe from the line drawing of the squared eye (μm)
It As a measuring method, it is possible to use
Two color (two lines) lateral shifts that are far apart were measured. Even if the center halftone image is affected by the positional deviation,
Created from the same disassembled mesh film to see if it affects the image
Visual evaluation was performed by comparing with the printed matter. Evaluation criteria; ◎ No problem ○ When observed with a magnifying glass, it is partially displaced, but it is practically used
Available △ Partially loses color balance × The overall color balance is lost The results obtained by this measurement are shown in Table 1. Comparative sample Created in the preparation of the colored photosensitive sheet of Example 1.
75 μm biaxially stretched polyethylene terephthalate
Commercially available film of 75 μm (Tetro manufactured by Teijin Ltd.
Create a photosensitive sheet by the same method except that
However, the same method can be used to measure the process steps and displacements.
went. The results obtained by this measurement are shown in Table 1. [0082] [Table 1] The image obtained from Example 1 of the present invention is
It was very close to the image of the printed matter. That is, created
When comparing the four-color image with the printed matter, the transferability of the image is also good
In addition, the color reproduction is very similar to the printed matter, and the original halftone dots are faithfully reproduced.
I was able to confirm that it appeared. Further, in Example 2, the heat shrinkage rate
0.5% or less of polyethylene terephthalate film
The size of the colored photosensitive sheet using
Better results have been obtained. In the third embodiment, each of MD / TD is collected.
By balancing the reduction ratio
Not only reduces the dimensional deviation, but also reduces the horizontal and vertical
This is even, that is, balance the film vertically and horizontally.
By taking it evenly even when heat-treated from a certain direction
Because it contracts, the positional deviation is stable in the vertical and horizontal directions, and the image is also updated.
With high resolution (image turbidity due to shift of halftone dots)
I was able to get it. On the other hand, commercially available polyethylene
Obtained from a comparative sample using terephthalate film
The image has a different color tone from the printed matter, and the position shift is large.
I was not satisfied with it. Also, the vertical and horizontal misalignment
Due to the large difference in
However, the resolution was also low. Examples 4 to 5 (1) Preparation of colored photosensitive sheet Release layer: Two types of supports with a thickness of 75 μm biaxially stretched poly
As ethylene terephthalate film (width 65 cm)
Ethylene-vinyl acetate copolymer resin (Mitsui DuPont Chemi
Calf EVAFLEX P-1405; vinyl acetate
Extrusion of content 14% by weight, VICAT softening point 68 ° C)
Then, a 25 μm thick release layer is formed by the laminating method.
Was. Two types of polyethylene terephthalate powder at this time
The physical properties of Rum are shown in Table 2. [0087] Colored photosensitive solution B; B-1 dissolution type (photopolymerization type) Vinyl acetate-vinyl versatate copolymer 12 g (80:20 wt%, polymerization average molecular weight 50,000, 50% methanol solution) Pentaerythritol tetraacrylate 4.3g Michler's Ketone 0.04g Benzophenone 0.25g Paratoxyphenol 0.01g Methyl cellosolve 94g Fluorine-based surfactant (3M, FC-430) 0.01 g As for the pigment, 1.2 g of the same pigment as the above A was mixed and dispersed.
Four color photosensitive layer solutions were prepared. As described above, the above colored photosensitive solution is coated on the release layer.
Each is coated with a bar coater to give a dry film thickness of 2.0μ
m, so that 2 types of 4 types of negative color photosensitivity
Created a sheet. (2) Treatment process Next, a decomposed mesh film for dimensional accuracy evaluation (B2 support in the center)
There is a color-separated mesh film from Izu, and people around it
Enclosed by eye line drawing; 520 x 820 mm Konica
Evaluation film) and the colored photosensitive sheet, and
Image exposure with printer (Dainippon Screen)
Was. Further, after the exposure, development processing was performed in a vat. developing
The liquid used had the following composition. Immersion time 35 seconds, liquid temperature 3
It was 2 ° C. [0090] Developer formulation (following aqueous solution) Perex NB-L 6.0 parts by weight Aqueous sodium silicate solution (JIS No. 3) 3.6 parts by weight NaOH 0.9 part by weight EDTA / 4H 0.1 part by weight 2-hydroxy-3-naphthoic acid 0.5 part by weight Benzoic acid 1.0 part by weight Polypropylene glycol 1.0 part by weight pH adjusted to 12.3 by fine adjustment of NaOH (3) Positional deviation measurement The positional deviation was measured in the same manner as in Example 1. The result is a table
It describes in 2. Comparative sample Created in the preparation of the colored photosensitive sheet of Example 4.
75 μm biaxially stretched polyethylene terephthalate
Commercially available 75 μm PET film (manufactured by Toray Industries, Inc.
Use the same method except that you changed the
The same method is used to create and measure process steps and misalignments.
I went. The results obtained by this measurement are shown in Table 2. [0093] [Table 2] The image obtained from Example 4 of the present invention is
It was very close to the image of the printed matter. That is, created
When comparing the four-color image with the printed matter, the transferability of the image is also good
The color reproduction is very similar, and the original halftone dots are faithfully reproduced.
I was able to confirm. On the other hand, commercially available
Obtained from a comparative sample using Tylene terephthalate film
The printed image has a different color tone from the printed matter and is not positioned.
All of these were too unsatisfactory. This is applicable to the image forming method by heat transfer.
The colored photosensitive sheet between the rollers under the nip pressure.
When passing the sheet, the sheet is not pulled in the passing direction.
It will be costly. In this embodiment, in such a method
When forming an image, in addition to the thermophysical properties of the support, pressure and
It is found that the tension force is applied, and the heat absorption stress is above a certain level.
It was confirmed that the misalignment is greatly affected by defining
Was done. Examples 6 to 7 (1) Preparation of colored photosensitive sheet Release layer: Two types of support; Biaxially stretched poly with a thickness of 75 μm
On the ethylene terephthalate film (width 65 cm),
Tylene-vinyl acetate copolymer resin (Mitsui DuPont Chemical
EVAFLEX P-1405 manufactured by the company; containing vinyl acetate
Extrusion rate of 14% by weight, VICAT softening point 68 ° C)
A release layer having a thickness of 25 μm was formed by the minate method. This
Of two kinds of polyethylene terephthalate film at the time of
The physical properties are shown in Table 3. [0097] Colored photosensitive solution B; B-2 soluble type (photolytic system) p-cresol novolac resin and naphthoquinone-1,2-diazide-4-sulfo Esterified product with acid chloride (esterification 50%) 8.2 g Vinyl acetate-vinyl versatate copolymer (copolymerization ratio 80:20 wt%, weight Average molecular weight 50,000, 50% methanol solution) 20.5 g Vinyl acetate-vinyl versatate crotonic acid copolymer (copolymerization ratio 79:20: 1wt%, weight average molecular weight 50,000, 50% methanol solution) 50.0g Methyl ethyl ketone (MEK) 156g Fluorine-based surfactant (3M, FC-430) 0.02 g As the pigment, the same pigment as in the above A was mixed and dispersed in an amount of 4.0 g.
Four color photosensitive layer solutions were prepared. As described above, the above colored photosensitive solution is coated on the release layer.
Each is coated with a bar coater to give a dry film thickness of 2.0μ
m, so that the positive photosensitivity of 2 types of 4 colors
Created a sheet. (2) Treatment process Next, a decomposed mesh film for dimensional accuracy evaluation (B2 support in the center)
There is a color-separated mesh film from Izu, and people around it
Enclosed by eye line drawing; 520 x 820 mm Konica
Evaluation film) and the colored photosensitive sheet, and
Image exposure with printer (Dainippon Screen)
Was. Further, after the exposure, development processing was performed in a vat. developing
The liquid used had the following composition. Immersion time 35 seconds, liquid temperature 3
It was 2 ° C. [0100] Developer formulation (following aqueous solution) Perex NB-L 6.0 parts by weight Aqueous sodium silicate solution (JIS No. 3) 3.6 parts by weight NaOH 0.9 part by weight EDTA / 4H 0.1 part by weight 2-hydroxy-3-naphthoic acid 0.5 part by weight Benzoic acid 1.0 part by weight Polypropylene glycol 1.0 part by weight pH adjusted to 12.3 by fine adjustment of NaOH (3) Positional deviation measurement The positional deviation was measured in the same manner as in Example 1. The result is a table
It describes in 3. Comparative sample Created in the preparation of the colored photosensitive sheet of Example 6.
75 μm biaxially stretched polyethylene terephthalate
Commercially available 75 μm PET film (manufactured by Toray Industries, Inc.
Use the same method except that you changed the
The same method is used to create and measure process steps and misalignments.
I went. The results obtained by this measurement are shown in Table 3. [0103] [Table 3] The image obtained from Example 6 of the present invention is
It was very close to the image of the printed matter. That is, created
When comparing the four-color image with the printed matter, the transferability of the image is also good
In addition, the color reproduction is very similar to the printed matter, and the original halftone dots are faithfully reproduced.
I was able to confirm that it appeared. Furthermore, in Example 7, MD
By balancing the contraction rate of each / TD
As for the dimensional accuracy, the dimensional deviation only decreases
With even horizontal and vertical displacement, that is, fill
Heat treatment from a certain direction by balancing vertically and horizontally
Even if it does, it contracts uniformly, so positional displacement is stable in the vertical and horizontal directions.
However, the resolution of the image is also higher (
It was possible to obtain a product with high turbidity. On the other hand, commercially available polyethylene
Obtained from a comparative sample using terephthalate film
The image has a different color tone from the printed matter, and the position shift is large.
I was not satisfied with it. Also, the vertical and horizontal misalignment
Due to the large difference in
However, the resolution was also low. [0106] According to the present invention, image transfer is performed using heat or pressure.
Occurrence of so-called registration mark shift in the system for copying
Can be controlled, and if a release layer is used together, it is similar to printed matter.
Colored image forming material that can obtain color proof
Can be provided.

Claims (3)

[Claims] 1. A support used in an image forming material for forming an image using heat and pressure is a film,
The physical property value of the film is 1% when measured at 130 ° C.
A colored image-forming material characterized by the following: 2. A support used in an image forming material for forming an image using heat and pressure is a film,
When the physical properties of the film are measured at 130 ° C., the heat absorption stress is 10
A colored image-forming material, which is 0 g / cm or more. 3. An image forming material for forming an image using heat and pressure, wherein the support used is a film, and the physical properties of the film have a breaking strength of 20 kg / mm ² or more. Image forming material.