JPH037383A - Thermally transferable image-receiving material - Google Patents

Abstract

PURPOSE:To eliminate especially the blur of an image and prevent an image- receptive layer from becoming thermally fused to a color-donative material during thermal transfer by providing the image-receptive layer consisting of a compound in which a color-receptive material is dispersed in a water-soluble binder, and also containing a specific compound. CONSTITUTION:In a thermally transferable image-receiving material with at least one image-receptive layer for forming an image by receiving colors transferred from a thermally transferable color-donative material when heated, provided on a support, the image-receptive layer consists of a compound in which a color-receptive material is dispersed in a water-soluble binder, and also contains a compound with an organic/inorganic value of 2 or more. The water- soluble binder may be various water-soluble polymers for use. However, the water-soluble polymer which has a group easily subjected to cross-linking reaction by a film hardening agent. In addition, any type of compound for improvement of thermal fusion inhibition is acceptable, provided the organic/inorganic value is 2 or more, preferably esters are acceptable.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a thermal transfer image-receiving material for thermal transfer recording, and in particular improves image blurring and further improves thermal fusion with a dye-providing material during thermal transfer. relates to an improved thermal transfer image-receiving material.

(Background Art) In recent years, with the rapid development of the information industry, various information processing systems have been developed, and recording methods and devices suitable for each information processing system have also been developed and adopted. The thermal transfer recording method is one of these recording methods.The equipment used is lightweight, compact, noiseless, easy to operate,
It has excellent maintainability and can be easily colored, so it has been widely used recently. This thermal transfer recording method can be roughly divided into two types: a thermal melting type and a thermal transfer type. In the latter method, a thermal transfer dye-providing material having a dye-providing layer containing a binder and a heat-transferable dye on a support is superimposed on a thermal transfer image-receiving material, and heat is applied from the support side of the dye-providing material to create a pattern formed by the thermal application. This is a method of obtaining a transferred image by transferring a heat-transferable dye onto a recording medium (thermal transfer image-receiving material). In addition,
The term "thermally transferable dye" as used herein refers to a dye that can be transferred from a thermal transfer dye-providing material to a thermal transfer image-receiving material by sublimation or diffusion in a medium.

(Problem B to be solved by the invention) However, in conventional thermal transfer image-receiving materials, when the thermal transfer dye-providing material and the thermal transfer dye-providing material are overlapped and thermal transfer is performed, the two are fused together, and some or all of the thermal transfer dye-providing material is may adhere to the transfer surface of the image-receiving material, or in severe cases, it may become impossible to transport the image-receiving material, causing a failure that may cause the apparatus to stop. Such failures are more likely to occur when heat application is set at a high temperature in order to increase the density obtained by transfer.

(Means for Solving the Problems) An object of the present invention is to provide on a support at least one image-receiving layer for receiving the dye transferred from the thermal transfer dye-providing material when heated to form an image. In the thermal transfer image-receiving material, the image-receiving layer is made of a composition in which a dye-receiving substance is dispersed in a water-soluble binder, and contains a compound having an organic/inorganic value of 2 or more. Resolved.

The thermal transfer image-receiving material is provided with a dye-receiving layer.

This image-receiving layer can receive the heat-transferable dye that migrates from the thermal transfer dye-providing material during printing, and can receive the heat-transferable dye that has the function of dyeing the heat-transferable dye. jj
! ! It is preferable that the film contains J quality dispersed in a water-soluble binder and has a thickness of about 3 to 50 μm.

Typical examples of polymers that can accept heat-transferable dyes include the following resins.

(b) Those having an ester bond A dicarboxylic acid component such as terephthalic acid, isophthalic acid, or succinic acid (these dicarboxylic acid components may be substituted with a sulfo group, a carboxy group, etc.), ethylene glycol, diethylene glycol, Polyester resin obtained by condensation of propylene glycol, neopentyl glycol, bisphenol A, etc.: Polyacrylic ester resin or polymethacrylic ester resin such as polymethyl methacrylate, polybutyl acrylate, polymethyl acrylate, polybutyl acrylate:
Polycarbonate resin: Polyvinyl acetate resin: Styrene acrylate resin: Hinyltoluene acrylate resin, etc. Specifically, JP-A-59-101395 and JP-A No. 63-
Examples include those described in No. 7971, No. 63-7972, No. 63-7973, and No. 60-294862. In addition, as a commercially available product, Byron 29 manufactured by Toyobo
0, Byron 200, Byron 280, Byron 300
, Byron 103, Byron GK-140, Byron G
K-130, Kao ATR-2009, ATR-20
10 etc. can be used.

(b) Those with urethane bonds polyurethane resin, etc.

(c) Those with an amide bond polyamide resin, etc.

(d) Those with urea bonds urea resin etc.

(e) Those containing a sulfon bond.

polysulfone resin, etc.

(f) Others having highly polar bonds, such as polycaprolactone resin, styrene-maleic anhydride resin, polyvinyl chloride resin, polyacrylonitrile resin, etc.

In addition to the synthetic resins mentioned above, mixtures or copolymers thereof can also be used.

The thermal transfer image-receiving material, particularly the image-receiving layer, may contain a high-boiling organic solvent or a thermal solvent as a substance capable of receiving heat-transferable dyes or as a dye diffusion aid.

Examples of high boiling point organic solvents include JP-A-59-83154;
No. 59-178451, No. 59-178452, No. 59-178453, No. 59-178454, No. 5
Esters (e.g. phthalate esters, phosphate esters, fatty acid esters), amides (e.g. fatty acid amides, sulfamides), ethers as described in No. 9-178455, No. 59-178457, etc. Examples include compounds such as alcohols, paraffins, and silicone oils.

As a thermal solvent, ■ it must be compatible with the dye, ■ it is solid at room temperature, but it melts when heated by the thermal head during transfer (it melts well even when mixed with other components), ■ the thermal head Compounds having various properties such as not decomposing when heated by 6 are used, preferably exhibiting a melting point of 35 to 250"C1, especially 35 to 2oo'C, and having a (organic/inorganic) value of O67. Here, inorganicity and organicity are concepts for predicting the properties of compounds, and the details are described in, for example, [Chemistry Area Jll, p. 719 (1957).

Specific examples of high boiling point organic solvents and thermal solvents include JP-A-62-174754, JP-A-62-245253, and JP-A-62-245253.
No. 1-209444, No. 61-200538, No. 62
-8145, 62-9348, 62-3024
No. 7 and No. 62-136646.

The high-boiling organic solvent and/or thermal solvent can be used alone in dissolved or microdispersed form in the image-receiving layer, or can be used in combination with a polymer that can accept the heat-transferable dye.

Although various known water-soluble polymers can be used as the water-soluble binder used in the present invention, a water-soluble polymer having a group capable of crosslinking with a hardening agent is preferred.

Examples of water-soluble polymers used in the present invention include vinyl polymers such as polyvinyl alcohol, polyvinylpyrrolidone, polyvinylpyridinium, cationic modified polyvinyl alcohol, and derivatives thereof (Japanese Patent Laid-Open No. 6.0-145
No. 879, No. 60-220750, No. 61-1431
No. 77゛, No. 61-235182, No. 61-2451
No. 83, No. 61-237681, No. 61-26108
9), polyacrylamide, polydimethylacrylamide, polydimethylaminoacrylate, polyacrylic acid or its salt, acrylic acid-methacrylic acid copolymer or its salt, polymethacrylic acid or its salt, acrylic acid-vinyl alcohol copolymer Polymers containing acrylic groups such as polymers or salts thereof (JP-A-60-168651, JP-A-62-9)
988), starch, oxidized starch, starch acetate, amine starch, carboxyl starch, dialdehyde starch, cationic starch, dextrin, sodium alginate, gelatin, gum arabic, casein, pullulan, dextran, methylcellulose, ethylcellulose, carboxymethylcellulose, hydroxy Natural polymers such as ethyl cellulose and hydroxypropyl cellulose or their derivatives (JP-A-59-174382, JP-A-60-2)
No. 62685, No. 61-143177, No. 61-18
No. 1679, No. 61-193879, No. 61-287
(See No. 782).

polyethylene glycol, polypropylene glycol,
Polyvinyl methyl ether, maleic acid-vinyl acetate copolymer, maleic acid-N-vinylpyrrolidone copolymer,
Synthetic polymers such as maleic acid-alkyl vinyl ether copolymer and polyethyleneimine (JP-A-61-327
No. 87, No. 61-237680, No. 61-27748
3) and the water-soluble polymers described in JP-A No. 56-58869.

Furthermore, various copolymers made water-solubilized by heptamer components containing 5O1- groups, COO- groups, SO□- groups, etc. can also be used.

It is particularly preferable to use gelatin as the water-soluble binder because it can be dried in a set manner and the drying load is much lower. Specifically, gelatin and its derivatives such as lime-treated gelatin, decalcified lime-treated gelatin, acid-treated gelatin, phthalated gelatin, acetylated gelatin, succinated gelatin, Bull, Soc, Phot,
Japan, No. 16. Enzyme-treated gelatin, gelatin hydrolysates, and enzymatically decomposed products as described in P2O (1966) can be mentioned.

Only one type of these water-soluble polymers may be used,
Two or more types may be used in combination.

The water-soluble binder and the receiving substance are used in a weight ratio of receiving substance/water-soluble binder=1 to 20, preferably 2 to 10, particularly preferably 2.5 to 7.

Any known dispersion method for dispersing a hydrophobic substance in a water-soluble polymer can be used to disperse the receiving substance in the water-soluble binder.

Typical methods include emulsifying and dispersing a receiving substance dissolved in an organic solution that is immiscible with water and mixing it with an aqueous solution of a water-soluble binder; There are methods of mixing.

Compounds that improve thermal adhesion used in the present invention include:
(Organic/Inorganic) Those with a value of 2 or higher are effective, but
Preferably 3 or more, particularly preferably 4 or more are used.

Compounds that improve thermal adhesion used in the present invention include:
Any type of tamp with an (organic/inorganic) value of 2 or more may be used, but esters are preferably used.

Compounds with an organic/inorganic value of 2 or more used in the present invention include compounds with a melting point of 30°C or higher, preferably 35°C or higher, from the viewpoint of raw storage stability and image storage stability of the image-receiving material after transfer. used.

In addition to the image-receiving layer, the layer to which the compound of the present invention is added may be any of a protective layer, an intermediate layer, etc., but the image-receiving layer is preferable.

The amount of the compound of the present invention added is 0.01 to 1 in weight ratio to the total weight of the dye-receiving material and water-soluble binder in the additive layer.
．． 5, preferably 0.02 to 0.5, particularly preferably 0.03 to 0.3.

The compound of the present invention can be selected with reference to the Chemical Handbook (edited by the Chemical Society of Japan, Maruzen), and specific examples include the following.

However, the present invention is not limited to these compounds.

Compound law Structural formula %formula% CH.

CH.

CHzOCOCI? H3i n CH-OCoC,, H3S-n CHtOCOC+tH3s n CHz OCOC+ + Hz s nCHOCOC
++Hzs n CH10G OC+ r Hts n3 3? H35COOCH□ CCHz'F';"C00C+zHzsC已H31CO
OCIb Hi y lo.

(CI 2 Hz s O÷, P-〇3, 37 The compound having an organic/inorganic value of 2 or more used in the present invention is added to the coating liquid as follows.

■ Hydrophilic polymer (binder) dissolved in a solvent
After being emulsified and dispersed in an aqueous solution, it is added to the coating solution.

(2) After dissolving or adding a dye-receiving polymer to an organic solvent solution, the emulsified dispersion in a hydrophilic polymer is added to a coating solution.

■ When dissolving in water, an organic solvent, or a hot medium of water and an organic solvent, dissolve it in the solvent and then add it to the coating solution.

It is particularly preferable that the image-receiving layer is composed of two or more layers. In that case, a synthetic resin with a low glass transition point may be used as the dye-receiving polymer in the layer closer to the support, or a high-boiling organic solvent or hot solvent may be used to improve the dyeability of the dye. For the outer layer, a synthetic resin with a higher glass transition point is used, various mold release agents are added, or the amount of high-boiling point organic solvents and thermal solvents used is minimized or eliminated to prevent surface stickiness. It is desirable to have a structure that prevents failures such as adhesion with other substances, retransfer to other substances after transfer, and thermal fusion with the thermal transfer dye-providing material.

The total thickness of the image-receiving layer is 1 to 50 μm, particularly 3 to 30 μm.
A range of is preferred. In the case of a configuration with two or more layers, the outermost layer is 0
．． It is preferably in the range of 1 to 3 μm, particularly 0.2 to 1.5 μm.

The support used in the thermal transfer image-receiving material of the present invention can withstand the transfer temperature and satisfies the requirements in terms of smoothness, whiteness, slipperiness, friction, antistatic property, denting after transfer, etc. You can use anything. For example, synthetic paper (polyolefin-based, polystyrene-based synthetic paper, etc.), high-quality paper, art paper, coated paper, cast coated paper,
wallpaper, lined paper, synthetic resin or emulsion impregnated paper,
Paper supports such as synthetic rubber latex-impregnated paper, synthetic resin-loaded paper, paperboard, cellulose fiber paper, polyolefin-coated paper (especially polyethylene coated paper on both sides), polyolefin, polyvinyl chloride, polyethylene terephthalate, polystyrene, methacrylate, Various plastic films or sheets such as polycarbonate, films or sheets treated to impart white reflective properties to the plastic, and laminates made of any combination of the above may also be used.

The thermal transfer image-receiving material of the present invention may have an intermediate layer between the support and the image-receiving layer.

The intermediate layer can be a cushion layer, a porous layer, or a
This layer has one of the functions of a dye diffusion prevention layer or a layer having two or more of these functions, and in some cases also serves as an adhesive.

The dye diffusion-preventing layer plays a role, in particular, in preventing the heat-transferable dye from diffusing into the support. The binder constituting this diffusion prevention layer may be water-soluble or organic solvent-soluble, but preferably a water-soluble binder.
Preferred examples include the water-soluble binders mentioned above as binders for the image-receiving layer, particularly gelatin.

The porous layer is a layer that prevents the heat applied during thermal transfer from diffusing from the image-receiving layer to the support and effectively utilizes the applied heat.

If the image-receiving layer is on both sides of the support, the intermediate layer may be provided on both sides, or may be provided on only one side.

The thickness of the intermediate layer is preferably 0.5 to 50μ, particularly preferably 1 to 20μ.

The image receiving layer, cushion layer, porous layer, diffusion prevention layer, adhesive layer, etc. constituting the thermal transfer image receiving material of the present invention include silica, clay, talc, diatomaceous earth, calcium carbonate, calcium sulfate, barium sulfate, aluminum silicate, Fine powders of synthetic zeolite, zinc oxide, lithopone, titanium oxide, alumina, etc. may also be included.

The thermal transfer dye-providing material used in the present invention has a layer containing a heat-transferable dye on a support, and performs recording by transferring the dye in a pattern to the image-receiving layer of the thermal transfer image-receiving material by applying heat. It is.

A fluorescent brightener may be used in the thermal transfer image-receiving material.

Examples include K, Veenkataramanl
fThe Chemis-try of 5ynthe
tic Dyesl Volume 8 Chapter 8, JP-A-61-143
Examples include compounds described in No. 752 and the like. More specifically, stilbene compounds, coumarin compounds, biphenyl compounds, benzoxacylyl compounds, naphthalimide compounds, pyrazoline compounds, carbostyril compounds, 2,5-dihenzoxazolethiophene compounds, etc. Can be mentioned.

Optical brighteners can be used in combination with antifade agents.

As the support for the thermal transfer dye-providing material, any conventionally known support can be used. Examples include polyethylene terephthalate; polyamide; polycarbonate; glassine paper; condenser paper; cellulose ester; fluorine polymer; polyether; polyacetal; polyolefin; polyimide; polyphenylene sulfide; polypropylene: borisulfone; cellophane.

The thickness of the support of the thermal transfer dye-providing material is -i 2 to 30
μ. An undercoat layer may be provided if necessary. Further, a dye diffusion preventing layer made of a hydrophilic polymer may be provided between the support and the dye-donating layer. This further improves the transfer density. As the hydrophilic polymer, the water-soluble polymers described above can be used.

A slipping layer may also be provided to prevent the thermal head from sticking to the dye-donating material. This slipping layer is composed of lubricating substances, such as surfactants, solid or liquid lubricants or mixtures thereof, with or without polymeric pigments.

The dye-donor layer is formed by selecting a dye so that the desired hue can be transferred when printed, and if necessary, arranging two or more dye-donating layers with different dyes on one thermal transfer dye-donating material. Good too. For example, when printing each color repeatedly according to color separation signals to form an image such as a color photograph, it is desirable that the hues of the print are cyan, magenta, and yellow. Three dye-donor layers containing the dye to be provided are arranged.

Alternatively, a dye-donating layer containing a dye that provides a black hue in addition to cyan, magenta, and yellow may be added. It is preferable to provide a mark for position detection at the same time as the formation of any of the dye-donating layers, since this eliminates the need for an ink or printing process separate from the formation of the dye-donating layer.

A thermal transfer dye-providing material using a thermally transferable dye basically has a thermal transfer layer on a support containing a dye that sublimes or becomes mobile by heat and a binder.

This thermal transfer dye-providing material is prepared by preparing a coating solution by dissolving or dispersing a dye that sublimes or becomes mobile by heat and a binder resin in a suitable solvent, and then applying this coating solution to the thermal transfer dye-providing material. On one side of the support for the material,
For example, it can be obtained by coating and drying the coating amount to give a dry film thickness of about 0.2 to 5 μm, preferably 0.4 to 2 μm to form a thermal transfer layer.

Dyes useful for forming such a thermal transfer layer include:
Although any dye conventionally used in thermal transfer dye-providing materials can be used, particularly preferred in the present invention are dyes of about 15
It has a small molecular weight of about 0 to 800, and is selected in consideration of transfer temperature, hue, light resistance, solubility in ink and binder resin, dispersibility, etc.

Specifically, for example, disperse dyes, basic dyes, oil-soluble dyes, etc. can be mentioned, but in particular, Sumikaron Yellow E
4GL, Dianix Yellow H2G-FS, Miketon Boliertel Yellow 3GSL, Kayasset Yellow 9
No. 37, Sumikalon Red EFBL, Dianix Red ACE, Miketone Polyeltel Red FB, Kayasset Red 126, Miketon Fast Brilliant Blue B, Kayasent Blue 136, etc. are preferably used.

Other known heat-transferable dyes can also be used.

Furthermore, as the binder resin used with the above dye, any binder resin conventionally known for this purpose can be used, and usually has high heat resistance and does not hinder the transfer of the dye when heated. things are selected. For example, polyamide resin, polyester resin,
Epoxy resins, polyurethane resins, polyacrylic resins (e.g. polymethyl methacrylate, polyacrylamide, polystyrene-2-acrylonitrile), vinyl resins including polyvinylpyrrolidone, polyvinyl chloride resins (e.g. vinyl chloride-vinyl acetate) copolymers), polycarbonate resins, polystyrene, polyphenylene oxide, cellulose resins (e.g. methylcellulose, ethylcellulose, carboxymethylcellulose, cellulose acetate hydrogen phthalate, cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, cellulose triacetate), polyvinyl Alcohol resins (for example, partially saponified polyvinyl alcohols such as povinyl alcohol and polyvinyl butyral), petroleum resins, rosin derivatives, coumaron-indene resins, terpene resins, polyolefin resins (for example, polyethylene and polypropylene), etc. are used.

Such a binder resin is preferably used in a proportion of, for example, about 80 to 600 parts by weight per 100 parts by weight of the dye.

In the present invention, any conventionally known ink solvent can be freely used as the ink solvent for dissolving or dispersing the above pigment and binder resin.

Alternatively, a solution obtained by dissolving the dye and the binder resin in the ink solvent may be dispersed in water or an aqueous solution of a water-soluble polymer, and this may be applied onto a support to form a dye-donating layer.

In the present invention, in order to improve the releasability of the thermal transfer dye-providing material and the thermal transfer image-receiving material, the dye-providing material and/or
Alternatively, it is preferable to include a release agent in the layers constituting the image-receiving material, particularly preferably in the outermost layer corresponding to the surface where both materials come into contact.

As the mold release agent, silicone oil, fine powder of silicone resin, fluorine surfactant, fluorine oil, fluorine fine particles, etc. are used, and silicone oil is particularly preferred. As the silicone oil, modified silicone oils such as carboxy-modified, amino-modified, epoxy-modified, polyether-modified, and alkyl-modified silicone oils are preferred.

The layers constituting the thermal transfer dye-providing material and the thermal transfer image-receiving material used in the present invention may be hardened with a hardening agent.

In the case of curing organic cutting-based polymers, JP-A-61
Hardeners described in Japanese Patent No. 199997 and No. 5B-215398 can be used. For polyester resins, it is particularly preferable to use isocyanate-based and epoxy-based hardeners.

For curing water-soluble polymers, U.S. Patent No. 4,678.7
No. 39, column 41, JP-A-59-116655, JP-A No. 62
Hardeners described in Japanese Patent Nos. 245261 and 61-18942 are suitable for use.

More specifically, aldehyde hardeners (such as formaldehyde), aziridine hardeners, and epoxy hardeners (CHz-CH-CHt-0-CCHz>a-0-CH
z-CHCHz\0/ \O/, etc.), vinyl sulfone hardeners (N,N'-ethylene-bis(vinylsulfonylacetamido)ethane, etc.),
N-methylol type hardeners (such as dimethylol urea) and polymer hardeners (compounds described in JP-A No. 62-234157, etc.) may be used.

Antifading agents may be used in the thermal transfer dye-providing material and the thermal transfer image-receiving material. Antifading agents include, for example, antioxidants, ultraviolet absorbers, or certain metal complexes.

Examples of antioxidants include chroman compounds, coumaran compounds, phenol compounds (for example, hindered phenols), hydroquinone derivatives, hindered amine derivatives, and spiroindane compounds. Compounds described in JP-A-61-159644 are also effective.

Benzotriazole compounds (
U.S. Patent No. 3,533,794, etc.), 4-thiazolidone compounds (U.S. Patent No. 3,352,681, etc.),
Benzophenone compounds (JP-A-56-2784, etc.), other JP-A-54-48535, JP-A-62-136
There are compounds described in No. 641, No. 61-88256, and the like. Further, ultraviolet absorbing polymers described in JP-A-62-260152 are also effective.

As metal complexes, US Pat. No. 4,241,155,
No. 4,245.018 No. 3-36IIj! , same No. 4
, 254, 195 No. 3-8WI, JP-A-62-174
There are compounds described in Japanese Patent Application No. 741, No. 61-88256, pages (27) to (29), Japanese Patent Application No. 62-234103, Japanese Patent Application No. 62-31096, and Japanese Patent Application No. 62-230596.

An example of an anti-fading agent using JP-A-62-215272
125) to (137).

The anti-fading agent for preventing fading of the dye transferred to the image-receiving material may be included in the image-receiving material in advance, or it may be supplied to the image-receiving material from the outside by a method such as transfer from a dye-donating material. It's okay.

The above antioxidants, ultraviolet absorbers, and metal complexes may be used in combination.

Various surfactants can be used in the constituent layers of the thermal transfer dye-providing material and the thermal transfer image-receiving material for the purposes of coating aids, improving peelability, improving slipperiness, preventing electrification, accelerating development, and the like.

Nonionic surfactants, anionic surfactants, amphoteric surfactants, and cationic surfactants can be used. Specific examples of these are disclosed in JP-A-62-173463 and JP-A-62-1.
It is described in No. 83457, etc.

In addition, when dispersing substances that can accept heat-transferable dyes, mold release agents, anti-fading agents, ultraviolet absorbers, optical brighteners, and other hydrophobic compounds in a water-soluble binder, the interface is used as a dispersion aid. Preferably, an activator is used. For this purpose, in addition to the above-mentioned surfactants, JP-A-59-15763
The surfactants described in Sections 37 and 38 of No. 6 are particularly preferably used.

The constituent layers of the thermal transfer dye-providing material and the thermal transfer image-receiving material may contain an organic fluoro compound for the purpose of improving slipperiness, preventing static electricity, improving releasability, and the like. Representative examples of organic fluoro compounds include Japanese Patent Publication No. 57-9053, columns 8 to 17;
Fluorinated surfactants described in JP-A-61-20944 and JP-A-62-135826, or oily fluorinated compounds such as fluorinated oil, or fluorinated resins such as tetrafluoroethylene resin, etc. Examples include powder.

It is also effective to include silicone oil containing polyether groups for the above purpose.

Furthermore, it is also effective to use the polyether-modified silicone oil in combination with fine powder of fluororesin.

In particular, the coating liquid for the outermost layer of the thermal transfer image-receiving material contains at least one
types of fluorine-based surfactants (for example, JP-A-61-209
By using the fluorine-based surfactant described in No. 44 and No. 62-135826, the constituent layers of the image-receiving material can be coated without uneven coating.

A capping agent can be used in the thermal transfer dye-providing material and the thermal transfer image-receiving material. As a matting agent, silicon dioxide, polyolefin, polymethacrylate, etc.
In addition to the compounds described in No. 1-88256 (page 29), Japanese Patent Application No. 110064/1982, such as benzoguanamine resin beads, polycarbonate resin beads, and As resin beads,
There is a compound described in No. 62-110065.

In the present invention, a thermal transfer dye-providing material is superimposed on a thermal transfer image-receiving material, and thermal energy is applied according to image information from either side, preferably from the back side of the thermal transfer dye-providing material, using a heating means such as a thermal head. Thereby, the dye in the dye-donating layer can be transferred to the thermal transfer image-receiving material depending on the magnitude of heating energy, and a color image with excellent clarity and resolution and gradation can be obtained.

The heating means is not limited to a thermal head, and known means such as a laser beam (for example, a semiconductor laser), an infrared flash, a thermal pen, etc. can be used.

In the present invention, by combining the thermal transfer dye-providing material with the thermal transfer image-receiving material, images can be printed by printing using various thermal printing printers, by facsimile, or by magnetic recording, magneto-optical recording, optical recording, etc. It can be used to create prints from , television, and CRT screens.

For details on the thermal transfer recording method, see Japanese Patent Application Laid-Open No. 60-348.
You can refer to the description in No. 95.

EXAMPLES The present invention will be explained in more detail by way of Examples below.

Example (Preparation of thermal transfer dye-providing material) A 4.5 μm thick polyester film (Lumirror: East type) with a heat-resistant slipping layer made of a thermosetting acrylic resin on one side was used as a support, and the heat resistance of this support was A coating composition (A) for forming a thermal transfer dye-providing layer having the following composition was coated on the side opposite to the side on which the slipping layer was provided by wire bar coating so that the thickness after drying was 2 μm. On the back side, polyvinyl butyral (Butvar 76: manufactured by Monsanto) 0.45g/n? A slipping layer of 0.3 g/rd of poly(vinyl stearate) was coated from a tetrahydrofuran solution to obtain a thermal transfer dye-donor element (A).

Orbital Color Elm Set (A) Disperse dye (2,3-diphenoxyanthraquinone) 4g polyvinyl butyral resin (Denka Butyral 500 0-A: electrification type) 4g methyl ethyl ketone 40-toluene
40-Polyisonanate (Takenate DIION: manufactured by Takeda Pharmaceutical Co., Ltd.) 0.2 ml (Preparation of thermal transfer image-receiving material) A thermal transfer dye image-receiving material was prepared as follows.

Surfactant (11 C, F,, So□N CH2COOK C2H? Mage4ac F -120 (Dainichi Ink) Surfactant +2) Surfactant (3) CH2CO○ CHzCH (CgHs) Cat (* NaONa OH2○0 CHzCH (CzHs) C4Hq Water-soluble polymer SO, hardener (1) C1, NHCOCH, SO, C11=CH.

CHz N HCOCHZ S Ot CH= CHz
Hardener (2) CH2N2(COCH2SO□CH= CH2H2 CHt N HCOCHt S OZ CH= C!
2 Dye-receptor material 0 Byron 290 (manufactured by Toyobo A21) Compound 3A Silicone oil 1 (]) KF-100T Manufactured by Shin-Etsu Silicone Co., Ltd. (Preparation of gelatin dispersion of dye-receptive polymer) I liquid composition Gelatin (10% aqueous solution) 100g interface Activator +21 (5% aqueous solution) 50rnl ■Liquid composition Dye-receiving substance 34g toluene
68g methyl ethyl ketone
68g compound A
13.5g water
50 - After adjusting the I and ■ solutions based on the above composition, stir and add the ■ solution to I't&, and use a homogenizer at 15.00 Orpm to repeat the cycle of dispersing for 2 minutes and pausing for 30 seconds 6 times. Repeating this resulted in a gelatin dispersion of dye-receiving polymer.

The thermal transfer dye-providing material and the thermal transfer image-receiving material obtained as described above are superimposed so that the dye-providing layer and the image-receiving layer are in contact with each other, and a thermal head is used from the support side of the thermal transfer dye-providing material, and the output of the thermal head is 0.3W/dot (20% higher than standard output), pulse width 0, 1
Printing was carried out under the conditions of 5 to 15 m5 ec and a dot density of 6 dots/u, and the magenta dye was imagewise dyed onto the image receiving layer of the thermal transfer image receiving material.

The extent to which the dye-donating layer is peeled off and adhered (thermal fusion) to the surface of the thermal transfer image-receiving material obtained after thermal transfer is observed, and evaluated based on the size of the adhesion area of the dye-donor layer to the surface of the image-receiving layer. went.

That is, when the adhesion rate is 50% or more ×50 to 25% △25 to 5% O When there is no adhesion at all ◎ Next, replace compound 1 with compounds 2 to 19 shown in Table 1. A thermal transfer image-receiving material was prepared and transferred in the same manner as described above.

Table 1 shows the evaluation of the degree of thermal fusion when Compounds 1 to 19 were used.

In addition, the extent to which the image of the image-receiving material appeared to be separated when viewed from a distance of 30 ca+ was observed and evaluated as a fine line with a width of 1 dragon at lwss intervals.

In other words, they appear clearly separated ○ Looks blurry and separated △ Cannot be separated × I evaluate it as.

This evaluation (evaluation of "blur") is shown in Table-1.

(2) (22) (20) (21) (26) (23) (27) 13.5 10.67 6.77 5.54 6.33 5.87 4.33 10 1 (28) (24) 2.56 2.25 Δ (CHIOCO 10+, P size Δ 2 78-79 It can be seen that this has the effect of improving the degree of thermal fusion.

In particular, it can be seen that compounds with an (organic/inorganic) value of 3 or more have a remarkable effect.

It can also be seen that the lower the melting point of the added compound, the greater the blurring of the image.

(32) (33) (34) (35) (36) (37) 669 4.27 3.46 3.36 3.37 2.91 liquid liquid liquid liquid liquid liquid CHsCOOCRuHS (Comparison) 1.33 × liquid 19 No additives ×　　　　○

Claims (1)

[Claims] A thermal transfer image-receiving material in which at least one image-receiving layer is provided on a support to form an image by receiving the dye that migrates from the thermal transfer dye-providing material when heated, and the image-receiving layer contains a water-soluble dye-receiving material. 1. A thermal transfer image-receiving material comprising a composition dispersed in a synthetic binder and containing a compound having an organic/inorganic value of 2 or more.