JPH0349992A - Material to be recorded of sublimation type thermal transfer recording system - Google Patents

Abstract

PURPOSE:To prevent the gloss inferiority and curl of recording paper after recording by bonding synthetic paper to one surface of plain paper and forming a dye receiving layer cured by active energy rays to the surface of the synthetic paper on one surface of the laminated paper having the synthetic paper or protective film bonded to the rear thereof. CONSTITUTION:Synthetic paper 1 is bonded to one surface of plain paper 3 through an adhesive 4 but, when the adhesive 4 is too thin, the surface uneven ness of the plain paper exerts effect on image quality after recording and, when the adhesive 4 is too thick, image receiving paper becomes thick and heavy as a whole and, therefore, the thickness of the adhesive 4 is pref. 3-20mum. A dye receiving layer is formed by curing a composition prepared by compounding 0.01-12 pts.wt. of at least one release agent with 100 pts.wt. of a mixture consisting of 40-90 wt.% of a sublimable disperse dye receiving resin, pref., a polyester resin and 60-5 wt.% of a crosslinking agent curable by active energy rays. The synthetic paper or protective film 8 is bonded to the rear of the plain paper 3 through the adhesive 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a recording medium used in a sublimation type thermal transfer recording system.

[Prior art]

The sublimation thermal transfer recording method is quiet.

The equipment is small, inexpensive, and easy to maintain.

It has features such as short output time, and because it uses sublimation type disperse dye, it can easily record high gradations by continuously changing the amount of heat generation energy, as well as high density and high resolution. have. Therefore, compared to other recording methods, this method is especially advantageous in obtaining full-cuff hard copies, and is often used as a recording method for color printers, video printers, and the like.

Conventionally, as a recording medium for this recording method, a material in which a recording layer is formed on general paper or synthetic paper (mainly polypropylene paper) has been used. However, when polypropylene paper is used as a base material, there are drawbacks such as curling due to the heat of the thermal head after recording, or lack of gloss in the image after recording.

[Purpose of the invention]

The present invention has been made to improve the above-mentioned drawbacks of the prior art, namely the curling of the receiver paper after recording and the surface gloss of the recorded image. A substrate used in a sublimation type thermal transfer recording method characterized by forming a dye-receiving layer cured with active energy rays on one side of synthetic paper or laminated paper to which a protective film is adhered. The gist is the record.

[Structure of the invention]

Hereinafter, the present invention will be explained in detail using the drawings. FIG. 1 is a schematic cross-sectional view showing the structure of the recording medium of the present invention. In FIG. 1, reference numeral 1 denotes synthetic paper, which is adhered to plain paper 3 via an adhesive 4. 8 is synthetic paper or a protective film and is adhered to the plain paper 3 via an adhesive 4. 2
is a dye-receiving layer, but an easy-adhesive layer 5 may be provided as shown in FIG. 2 in order to improve the adhesion of the dye-receiving layer to the synthetic paper, or to prevent charging of the recording medium. An antistatic layer 6 may be formed as shown in FIG. or! As shown in FIG. 4, a layer 7 for improving the whiteness of the recording medium may be formed. Also, these 5°6.7
The layers may combine their respective performances.

The synthetic paper or protective film on the back side of the recording medium optimizes the running properties of the recording medium in the printer, and also prevents the generation of dust from plain paper, and is consistent with these purposes. Although any synthetic paper or protective film can be used, it is preferable to use a material that has sufficient antistatic properties in consideration of the chargeability during running of the printer. An antistatic agent may be applied if necessary.

The dye-receiving layer 2 is characterized by being cured with active energy rays, and therefore has resistance to the pressing pressure and heat of the thermal head during recording, and has high gloss retention on the image-receiving surface. By combining it with paper, it was possible to produce a recording medium with a low Ker μ after recording, good gloss retention on the image receiving surface, and good recorded image quality.

Examples of the synthetic paper 1 include polypropylene paper, polystyrene paper, vinyl chloride paper, polyester paper, and the like. Examples of polypropylene paper include Toyobo's Burl Vapor 2.
Toyobar, Tamago Yuka Yubo series (FPG, 8G
tlr, GFG.

V-type F, etc.) are suitable, but considering the whiteness of the base, the Yubo series is preferable, and considering the adhesion of the receptor layer, the Yubo 8G is suitable.
U is most preferred.

As the polyethylene paper, vinyl chloride μ paper, and polyester paper, for example, beach coated paper manufactured by Nisshinbo Co., Ltd. is suitable.

If the thickness of the synthetic paper 1 is not too large, the unevenness on the surface of the plain paper will affect the image quality after recording, and if it is too thick, the overall thickness of the image receiving paper will become thick and heavy.

Therefore, the thickness is preferably 10 to 100 μm.

Synthetic paper 1 is adhered to plain paper 3 via adhesive 4, but if the thickness of adhesive 4 is not increased, the unevenness of the surface of the plain paper will affect the image quality after recording, and if it is too thick, the receiving paper The overall thickness becomes thicker and heavier. Therefore, the thickness is 5-20
μm is preferred.

The dye-receiving layer 2 cured by active energy rays is made by coating a composition consisting of a sublimable disperse dye-receptive resin, a crosslinking agent that can be cured by active energy rays, and at least one type of release agent on synthetic paper. Preferably, at least one mold release agent is added to 100 parts by weight of a mixture consisting of 40 to 95 parts by weight of a polyester resin and 60 to 5 parts by weight of a crosslinking agent that can be cured by active energy radiation. This is a cured composition containing 0.01 to 12 parts by weight. The dye-receiving layer made of these compositions can easily be dyed with sublimable disperse dyes, has excellent stability, and has very good gloss retention after recording. The appropriate film thickness is 1 μm or more, and if it is less than 1 μm, the staining sensitivity and stability will be insufficient.

As the polyester resin, linear thermoplastic polyester resin obtained by condensation polymerization of dicarboxylic acid and di-μ and/or condensation polymerization of unsaturated polybasic acid having a reactive double bond and polyhydric alcohol-μ Among them, linear thermoplastic polyester resins with a molecular weight of 2,000 to 40,000 obtained by condensation polymerization of at least one type of cicacic acid and at least one type of geo-μ are mentioned. A polyester resin having a crystallinity of 14 or less is preferred in terms of solubility in organic solvents, ease of dyeing, and good light resistance.

The blending amount of the polyester resin is 40 to 40% of the total amount of the crosslinking agent.
It is preferable that the weight ratio is 95% by weight; if it is less than 40% by weight, the dyeing density with the sublimable disperse dye will not become deep under low two-powder conditions, and conversely, if the blending amount of the polyester resin is 95% by weight,
If it exceeds 4, there will be less crosslinking agent, and the blocking resistance with the color sheet (transfer paper) coated with the sublimable disperse dye will be poor. Cured articles and color sheets begin to cause blocking (sticking) during thermal transfer.

More preferably, the weight is in the range of 55 to 94 weight.

Specific examples of linear thermoplastic polyester resins obtained by condensation polymerization of at least one dicarboxylic acid and at least one diol include
Acid/ethylene glyco-μ/polyester resin obtained from neopentyl glycol, other terephthalic acid/isophthalic acid/ethylene glyco-1v/bispheno-μA-
Ethylene oxide adduct, terephthalic acid/isophthalic acid/ethyl glycol/I//1,6-hexanedio-
μ, terephthalic acid / isophthalic acid / sepa V acid / ethylene glyco-IV / neopentyl μ glyco-μ, terephthalic acid / sebacic acid / ethylene glyco-μ / / neobenchi / V-glyco μ, terephthalic acid / isophthalic acid / Adipic acid / Ethylene Klico IV / Neobenchi ~ Glyco-μ
Polyester resins obtained from the like can be mentioned, and two or more types can also be used in combination. Especially light,
From the viewpoint of stability against heat, water, etc., it is preferable to use two or more of these polyesters in combination to improve stability. For example, when two types of polymers A and B are used together, the preferred range of use of the polymers is A.
is 20 to 80 weight 'Mk4, and B is 80 to 20 weight range.

It is of course possible to use esterified dimethyl terephthalate, dimethyl isophthalate, etc. as a raw material for condensation polymerization instead of terephthalic acid, isophthalic acid, etc.

Unsaturated polybasic acids and polyhydric alcohols with reactive double bonds
Examples of unsaturated polyester resins obtained by condensation polymerization with Examples include resins obtained from /1.5-butanedio-μ, maleic acid/isophthalic acid/neopentyl μglyco-μ, maleic anhydride/tetrahydrophtha/1/acid/dibrovyV glycolμ, and the like.

The crosslinking agent is necessary to cure the resin composition used in the recording medium of the present invention with active energy rays and to obtain blocking resistance of the cured resin composition, and the preferred blending amount is the same as that of the polyester resin. The total amount is in the range of 5 to 60% by weight, more preferably 6 to 45% by weight. If the amount of crosslinking agent is less than 5% by weight, blocking tends to occur, while if it exceeds 60% by weight, the blocking resistance will be good, but the proportion of polyester resin will decrease, and sufficient dyeing density will not be obtained. Rareni (become)

Considering the curing of the resin composition by the crosslinking agent and the blocking resistance of the recording medium, it is preferable that the crosslinking agent contains at least one type of polyfunctional monomer, and ultraviolet rays that can be easily handled as active energy rays. When using these crosslinking agents, the polymerizable group of these crosslinking agents is preferably a monomer having an acryloyloxy group or a methacryloyl μoxy group.

Examples of monomers having a (meth)acryloyl μ-oki V group include polyether acrylate or polyether acrylate F type (hereinafter, "acrylate or methacrylate" is simply abbreviated as "(meth)acrylate"), polyester/L / (meth)acrylate type, poly-μ (meth)acrylate type, epoxy (meth)acrylate type, amide urethane (meth)acrylate type,
Urethane (meth)acrylate type, Spiroaceter/I
/(meth)acrylic v-) system and polybutadiene (meth)
Examples include chemical oligomers such as acrylic V-) series.

Specific examples of such monomers or oligomers include polyethers synthesized from 1.2.6-hexanetrione-yv/propylene oxide/acrylic acid, trimethylo-μpropane/propylene oxide/acrylic acid (
meth)acrylate; adipic acid/1,6-hexanedio-/%//polyester synthesized from acrylic acid, succinic acid/trimethyloμ ethane/acryμ acid, etc.! (Meth)acrylate; F-lyethylene glycol Cyacry V-
), hexadelopyrene glyco-μ diacrylate, neobenchi N-glyco-μ diacrylate), 1,4-butanediol dimethacrylate v-), 2-ethyμ hexyμ acrylate, tetrahydrofurfuryl acrylate, 2-hydroxyethyl methacrylate, Ethyl Capito Acrylate, F Rimethylo Propane Triacrylate,
Pentaerythritol tetraacrylate, diventaerythritol y tetofacrylate, civentaerythritol p pentaacrylate, 2.2-bis(4-acryloyl-oxydiethoxypheni/L/)propane, 2.2
-bis(4-acryloyloxypropoquinpheni 1v
) (meth)acrylates such as propane or polio-1v
(Meth)acrylate; diglycidyl etherified bispheno-/vA/acrylic acid, diglycidyl etherified polybispheno-/l/A/acrylic acid, triglycidyl di-μ
Glycerin ether/Epoxy(meth)acrylate F such as acrylic acid;
l/) methane/2-hydroxyethyl acrylate, γ
-Ptyroocton/N-methyl ethanol-! Amine/2,
6-) Amidourethane (meth)acrylate such as lylene diisocyanate/tetraethylene glyco/I//2-hydroxyethyl acrylic V=); 2.6-lylene diisocyanate diacrylate, isophorone diisocyanate cyacrylate , hexamethylene diisocyanate diacrylate, etc.; diarylidene bentaerythritone A//2-hydroxyethyl acrylate; spiroaceter μ acrylate synthesized from evagated butadiene/2-hydroxyethyl acrylate; Examples include μ-modified polybutadiene, and these modified polybutadienes and oligomers are used alone or in a mixed system of two or more types.

Among the monomer oligomers, the following general formula (x x [wherein n is an integer of 1 to 4, and at least 3 , an alkylene group having 1 to 8 carbon atoms, or a polyoxyaryne group having an alkylene group having 1 to 8 carbon atoms
Represents a group. ), the remainder is an alkyl group having 1 to B carbon atoms, a hydroxyl group, an amino group, a formula (0 horse) m-H (in the formula, horse represents a carbon atom & an alkylene group having 1 to 8 carbon atoms) (in which m is a positive integer) or a group represented by the formula rn-OH (wherein and m have the same meanings as above). ], such as diventaerythritol/l/tetraacrylate, dipentaerythritol pentaacrylate, dipentaerythritol/l/hexaacrylate,
tripentaerythrito) -/1/pentaacrylate, tribentaerythrito μ hexaacrylate, triventaerythrito! Heptacrylate, etc., the following general formula (II)
(■) (where n is a positive integer of 1 to 10, and X is optionally 101'I or 10COOH-OH.) Diacrylate of ether μ bispheno-/%/A, diacrylate of Ebicortna 1001 (n=3, manufactured by Shell), etc., or diacrylate of the following general formula (III) -O+Xn0II-x! ox, o+c-aa=ca.

1 0 ... (I[l) (in the formula, "1+
12.xn is the same or different alkylene group having 6 or less carbon atoms, or a structure in which one hydrogen atom thereof is substituted with a hydroxyl group, and n is an integer of 0 to 5. ), such as 2.2-bis(4-acryloyloxydiethoxypheniμ)propane, 2.2-his(4-acryloyloxytriethoxypheny/v)propane, 2.2-bis(4 Acryloyl μoxydiproboxyphenylene/I/)propane and the like have very good quick drying properties in air when ultraviolet rays are used as the active double energy rays, and are particularly preferred crosslinking agents.

In the present invention, it is necessary to incorporate a release agent in order to further improve the blocking resistance (staking resistance) between the recording medium and the transfer paper (color sheet). As the mold release agent, at least one selected from silicone surfactants, fluorosurfactants, and graft polymers having polyol μganosiloxane as a trunk or branch can be used, and the blending amount is based on polyester μ resin and crosslinking. Total amount of agent 100
It can be used in a range of 0.01 to 12 parts by weight.

As a silicone surfactant, a compound consisting of blocks of polydimethylsiloxane and polyoxyalkylene (which may be slightly modified with other functional groups) is effective, and in particular 0Hs-( The ratio of slo) group and 10R-group (R near y kylene residue) is OR
,-(EIiO)V2-/-0R-= 1710~1
/α1, preferably 115 to 1/1llL2
Those within the range of are effective in improving blocking properties, leveling properties, and dyeing density.

The above silico Specific examples of surfactants include general formula () () %formula% A positive integer of Also, X and y are 0° ・The number of Take.

R5 is hydrogen, Alki μ group, a syl group or a Li group, Aceto Represents an xyl group.

) C■.

OH3, m and n are positive integers of 1, X and y are numbers of 0, 1, 2, 3 degrees, X is 0 or an integer of 1 to 5, 0H1 R, bar 8l -OH, hydrogen, alkyl group, acyl μ group 1
゜ or an aryl group, and R8 represents hydrogen, an amine group, an acyl group, an aryl group, or an acetoxy group. ) and the like.

In addition, as the fluorine-based surfactant, any nonionic, anionic, cationic, or amphoteric fluorine-based surfactant may be used as long as it is soluble in the mixture of polyester resin and crosslinking agent and exhibits blocking resistance. It is possible to use one or more types of activators, such as anionic surfactants such as fluorocarbon sulfate, fluorocarbon sulfonate, fluorocarbon carbonate; 〃Sulfonamide μkiμamine quaternary ammonium salt, N-fluoroyl-sulfonamide alkylμamine salt, N-fluoroamide μkiμamine quaternary ammonium salt, N
- Cationic surfactants such as fluoro-kylamides, N-fluoro-kylaminosulfonamides, quaternary ammonium salts of halomethyl ether; for example, fluorocarbon sulfonamides, fluorocarbon aminosulfonamides, fluorocarbon carpoxysulfonamide, fluorocarbon hydroxysulfonamide, fluorocarbon sulfonamide ethylene oxide adduct, fluorocarbon hydroxysulfonamide sulfate ester p1 fluorocarbon amino acid amide,
Fluorocarbon acid amide, fluorocarbon hydroxy acid amide, ethylene oxide addition condensate of fluorocarbon acid amide, 7μ olocarbon hydroxy acid amide sulfate, fluorocarbon hydroxy acid amide sulfate, fluorocarbon nuphonic acid, fluorohydrocarbon carbon amide Bonic acid, fluorohydrocarbon acid, fluorohydrocarbon ester, fluorohydrocarbon alkyl ester, fluorohydrocarbon amide, fluorohydrocarbon alkyl ester Nonionic surfactants such as sulfuric acid and fluoroalkyldiamine; for example, amphoteric surfactants such as alkylamines having a betaine-type fluorocarbon phonamide bond and alkylamines having a betaine-type fluorocarbon acid amide bond. can be mentioned.

Among the above-mentioned surfactants, nonionic surfactants are preferable, especially considering the improvement of leveling and elimination of blocking of the recording medium of the present invention.

Examples of graft polymers having polyorganosiloxane as a trunk or branches include those having a polymer or copolymer obtained by vinylμ polymerization, polycondensation, ring-opening polymerization, etc. as a trunk and polyorganosiloxane as branches. I can do it. Examples of these graft polymers include methacryloyl y oxy V group, vinyl μ group or metal μ group at one end.
Polysiloxane (macromonomer) with a capto group added K alkyl/L/(meth)acrylate, (meth)acrylic acid, derivatives of (meth)acrylic acid having a functional group,
Vinyl acetate, vinyl chloride, (meth)acrylonitrile μ,
A graft polymer obtained by polymerizing at least one monomer such as styrene; a macromonomer having two hydroxy μ groups or carboxy μ groups near the terminals of polysiloxane, and sica μ-bonic acid and di-y Graft polymers obtained by reacting - Examples include graft polymers obtained by reacting a macromonomer having two hydroxy μ groups or polypoxy μ groups near the terminals of polysiloxane with a jepoxy or diisocyanate compound.

Examples of other graft polymers include those having a polyorganosiloxane as a backbone and a polymer or copolymer obtained by vinyl polymerization, polycondensation, ring-opening polymerization, etc. as branches. Examples of these include silanes having organoleptics and vinylic polymerizable groups, such as 3-methacryloxypropyldimethoxymethy/I/V
A polysiloxane having a methacryloyloxy group in the side chain is synthesized by S-combination of Ran, methiμvinyμdimethoxyyran, ethylvinyμdiethoxysifun, etc., and then the monomer and alkyl/L/(meth)acrylate , (meth)acrylic acid, a derivative of (meth)acrylic acid having a functional group, vinyl acetate μ, vinyl chloride (meth)acrylonitrile, styrene, etc., a graft polymer obtained by polymerizing at least one monomer; A polysiloxane having a glycidiμ group in the side chain is synthesized by condensing silane with jetoxy-3-glycidoxyprobiμmethyμ, and then this is reacted with (meth)acrylic acid to form (meth)acryloylμ. After obtaining a monomer containing an oxy group, a graft polymer obtained by polymerizing the monomer; organosilane and hydroxyethyl μ
Examples include graft polymers obtained by synthesizing a polysiloxane having a hydroxy ρ group in the side chain by condensing it with methyldimethoxysiphon, and then polycondensing the dicarboxylic acid with the diol.

When synthesizing the polysiloxane that becomes the trunk or branch of the graft polymer, cyclic silane, especially cyclic dimethylpolysiloxane having 5 to 8 repeating units, is used as the main raw material, and trimethylmethoxine or trimethymu is used as a molecular weight regulator.
Using a silane compound having one alkoxy group in one molecule such as ethoxysilane, polymerization may be carried out at 70 to 150 t: with a functional group-containing silane and a strong acid or strong base as a catalyst.

The blending amount of the graft polymer is α01 to 12 parts by weight, preferably α05, of at least one graft polymer based on 100 parts by weight of the mixture of polyester resin and crosslinking agent.
By adding up to 10 parts by weight, blocking with the transfer paper (cuff sheet) can be significantly eliminated and the dark fading resistance of the dyed article can be improved. If the amount is less than 105 parts by weight, the anti-blocking effect will be reduced and the dark fading property will not be improved, which is not preferable. If the amount is more than 12 parts by weight, the cured product cured with active energy rays becomes opalescent and the dyeing density when dyed with a sublimable disperse dye decreases, which is not preferable.

The molecular weight of the graft polymer containing polysiloxane is 10
It is preferable that it is 00 or more. The weight ratio of the polyorganosiloxane component to the trunk or branch polymer or copolymer other than the polyorganosiloxane component is (polyorganosiloxane component)/(polymer or copolymer component) = 9515 to 10. /90 is preferable, and more preferably 90/10 to 20/80. When the ratio exceeds 9515, the dark fading resistance tends to be poor, and conversely, when the ratio is less than 10/90, the blocking resistance tends to decrease and the dark fading resistance also tends to become poor. Moreover, the molecular weight of the graft polymer is 1000
If it is less than 20%, the dark fading property tends to be difficult to improve.

The resin composition for producing the recording medium of the present invention may be roll-coated as it is, if a monomer such as tetofhydrofμfuryl acrylate, which has strong polymer solubility and low viscosity, is used as a component of the crosslinking agent. Coatings such as barcode and blade coating are possible, but in order to improve coating workability, these compositions must be added with solvents, such as ethyl alcohol, methyl chloride, ethyl acetate, toluene, and ethyl acetate. It is better to mix dimethylformamide or the like to adjust the coating viscosity to an appropriate level. With K, spray coating, curtain coating, flow coating, and tip coating can be easily performed.

In addition, in the present invention, depending on the purpose, fine inorganic particles of several μm or less, such as silica, alumina, silica, etc.
Titanium oxide or the like may also be blended.

The resin composition for producing the recording medium of the present invention is cured with active energy rays such as electron beams and ultraviolet rays, but in consideration of radiation source control, it is preferable to use ultraviolet rays. When using ultraviolet rays as active energy rays,
The total amount of polyester resin and crosslinking agent in the composition of the present invention is 10
A photopolymerization initiator is usually added (L1 to 10 parts by weight) per 0 parts by weight. Specific examples of photopolymerization initiators include benzoin, benzoin isobutyl p-ether μ, benzi-p
dimethyl y digit-μ, ethiμ fe diμ glyoxylate,
Jetoxyacetophenone, 1,1-dichloroacetophenone, 4'-isopropyl/L'-2-hydroxy-2
-Methylpropiophenone, 1-hydroxycyclohexypphenymuketone, benzophenone, benzophenone/jetanolamine, 4,4'-bisdimethy! Aminobenzophenone, 2-methylthioxanthone, ter
Power of t-butymu anthofquinone, benzimu, etc. Ponymu compounds; sulfur compounds such as tetramethymuthiurammonosphyto, tetofumethymuthiufumodisuphyto; azobisisobutyronitrile, azobis-2,4-dimethyvaleronitrile, etc. azo compound; benzoyl peroxide,
Examples include peroxide compounds such as di-tert-buty-μ peroxide, and these compounds may be used alone or in a mixed system of two or more. The resin composition described above is coated on synthetic paper and irradiated with active energy rays to produce a recording medium.

The back side of the recording medium is coated with synthetic paper or a protective film 8 in the same way as the front side in order to eliminate the adverse effects of fiber waste generated from plain paper and to optimize the running properties of the recording medium in the printer. Preferably laminated. These synthetic papers or protective films 8 are adhered to plain paper by the adhesive 4, but it is preferable that the adhesive layer be thicker because it will not be affected by the plain paper. As the plain paper, art paper, coated paper, etc. having a thickness of 40 to 200 .mu.m can be used. The thicker the paper, the better the heat resistance, and the smoother the paper is preferably as smoother as possible in terms of the image quality.

These papers or films can be used as they are, or if necessary, they can be pretreated by washing, etching, corona discharge, active energy ray irradiation, dyeing, printing, etc. good.

In addition, when stacking dyed films or papers, in order to prevent dye migration of the disperse dye, it is better to apply the resin composition on only one side of the base material, but it is necessary to actively prevent this dye migration. For this reason, it is more preferable to provide a non-migration layer on the surface opposite to the coated surface of the sublimable disperse dye dyeable resin composition.

The composition for forming the non-migration layer includes 100 parts by weight of the monomer oligomer mixture consisting of the polyfunctional monomer and/or monofunctional monomer described above, and if necessary, the photopolymerization initiator described above (from 1 to 100 parts by weight of L1 to 100 parts by weight). However, in order to sufficiently prevent dye migration due to disperse dyes, it is necessary that the monomer/oligomer mixture has an average of 1.5 or more polymerizable groups per molecule. Similar to the sublimation type disperse dye dyeable composition, these coating agents can also be adjusted in viscosity with a solvent, coated on a substrate, and cured.

In the following, examples of the present invention will be described in more detail. In addition, in Examples and Comparative Examples, "parts" are "parts by weight"
shows.

Preparation of base material [Reference example 1] Laminate white polypropylene paper (YUPO FPG manufactured by Tamago Yuka Co., Ltd., thickness 60 μm) on one side of coated paper (thickness 85 μm), and laminate white polypropylene paper (Toyobo Toyoba μm) on the other side.
SS1 (thickness: 50 μm) was laminated. Adhesives used were Toyo Morton's AD-577-1 and 0AT-52.
Coating amount is Yubo IFPG/dry between coated paper 5y/
m l Coated paper Totoyover p day S dry 3
f/m”.Drying was done at 80℃ for about 3
The test was carried out for 0 seconds and aged at 40°C for 2 days.

[Reference example 2] Yupo of reference example 1? PG Kawashi Yubo 8Gσ made by Tamago Yuka
A laminated paper was similarly prepared using (thickness: 60 μm).

[Reference example 3] White polypropylene paper (Yubo FPG manufactured by Tamago Yuka.

200 μm thick) was used as the base material.

Creation of image-receiving layer For Examples 1 to 5 and Comparative Examples 1 and 2, the coating liquid A-0 shown in Table 1 was prepared, and the coating solution A-0 shown in Table 1 was coated on the base material described in Reference Examples 1 to 3 with the combinations shown in Table 2. It was applied uniformly by dipping, and then irradiated with ultraviolet rays using a high-pressure mercury lamp in the air to achieve a film thickness of 5.
An image receiving layer having a thickness of ˜6 μm was created.

For Comparative Examples 3 and 4, the coating liquid was applied onto the base material of Reference Example 1゜3 using a wire parser (coating amount when dry was 6?/m).
2), dried to form a receptor layer, and further dried at 100°C for 30
Curing was performed in a hot air dryer in minutes.

A video printer (Mitsubishi 8CT-O
Images were recorded using Pl 00).

As the transfer sheet, the provided 80T-OKl 007 was used.

The obtained evaluation results are shown in Table 2.

Table 1 0 Coating liquid resin composition components Polyester resin A*5) Polyester resin B*6) Amino-modified silicone (Shin-Etsu Ka Handicraft: Kp-3qs) Evoquin modified silicone (Shin-Etsu Ka Handicraft: X-22-545) Solvent Methyl ethyl ketone 60 parts 30 parts 5 parts 350 parts 350 parts 1) 2 P 6 A: diventaerythritol μ hexaacrylate v-): dipentaerythritol pentaacrylate: diventaerythritol μ tetophacrylate: 2.2 -Bis(4-acryloyl μ oxydiethoxypheni/L/)propane P5A A-DI! :P Umbrella 3) 2P4A Kyo 4) $2) Bow) Polyester resin A: Resin polymerized by polycondensation of terephthalic acid/isophthalic acid/sebacic acid/ethylene glycol A//Neoben μ Glyco-μ (molecules 120,000 to 25,000, Tg 10℃) $6) Holieste μ resin B: Terephthalic acid / Isophthalic acid / Sepacic acid / Ethyref glycol / Neobench IV Clicor fV / Resin polymerized by condensation polymerization of 1,4-butanediol *7) Silicone interface Activator A: OTl, Ocan +O! H40qCO (8 in !2 H5) Synthesis Example 1 Graft polymer
Molecular weight 5000) 100F methyl methacrylate 200F benzoyl peroxide
3f toluene
500f of the above composition was charged into a 3 t flask equipped with a stirrer, and after purging with nitrogen, polymerization was carried out at 90° C. for 8 hours. Add this polymerization solution to a large amount of methanol,
The polymer was precipitated and collected.

The resulting graft polymer had polydimethylsiloxane 2 polymethyl methacrylate = 55767 and had a molecular weight of about 80,000, with polydimethylsiloxane as branches and polymethyl methacrylate as the trunk.

〔Effect of the invention〕

By using the recording material of the present invention, it has become possible to improve the gloss defects of the recording paper after recording and the occurrence of ker μ on the recording paper after recording, which were conventional problems in the sublimation type thermal transfer recording method. .

[Brief explanation of drawings]

1 to 4 show cross-sectional views of the recording medium of the present invention, and 1 to 8 in the figures indicate the following.

Claims (2)

[Claims] (1) Synthetic paper is adhered to one side of plain paper, and synthetic paper or protective film is adhered to the back side of laminated paper. A dye-receiving layer cured with active energy rays is formed on one side of the synthetic paper. A material to be recorded using a sublimation type heat-sensitive transfer recording method. (2) A mixture 10 in which the dye-receiving layer cured by active energy rays consists of 40 to 95% by weight of a polyester resin and 60 to 5% by weight of a crosslinking agent that can be cured by active energy rays.
0.01 to 0.01 parts by weight of at least one mold release agent
The recording medium according to claim (1), which is obtained by curing a composition containing 12 parts by weight.