JPH03216385A - Sheet to be thermally transferred and coating material - Google Patents

Abstract

PURPOSE:To enhance heat resistance and to prevent the bleed-out from a sheet to be thermally transferred by improving the compatibility of a dyeing resin and a resin having releasability and low friction properties and bringing both resin to a reaction type by forming the resin having releasability and low friction properties from a specific polymer. CONSTITUTION:A resin having releasability and low friction properties is composed of a polymer having a perfluoroalkyl group-containing monomer unit A and/or a polysiloxane group-containing monomer unit and an alkoxysilyl group-containing monomer unit (B). As an embodiment of the polymerizable monomer (A), perfluoroalkyl group-containing vinylsulfone such as allyl ether and a mixture of two or more kinds of vinylsulfones are designated. As the polymerizable monomer (B), a vinyl monomer having a polysiloxane group represented by formula (1) (wherein X is a divalent org. group and R1, R2 and R3 are a hydrocarbon group and n is an integer of 6 - 130) is designated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a thermal transfer sheet and a coating material for producing a thermal transfer sheet.

[Conventional technology]

Conventional thermal transfer sheets use a combination of dyeable resin and lubricant resin (e.g. fluorocarbon resin and silicone acrylic resin) to ensure good release and slip properties with the thermal transfer sheet during thermal transfer recording. (Japanese Unexamined Patent Publication No. 171992/1983, Japanese Unexamined Patent Publication No. 58/1989)
Publication No. 8-187396 and JP-A-1-202494
Publication No. These are thermal transfer sheets that maintain good dyeability using a dyeable resin, and then have releasability and slipping properties added using a lubricant resin to prevent the thermal transfer sheet and the thermal transfer sheet from fusing together during thermal transfer. [The problem that Komei is trying to solve] In recent years, shortening the transfer time during thermal transfer recording has become an issue, and there is a trend to increase the transfer recording temperature and speed up the transfer speed. However, in this case, in the conventional method, (1) during thermal transfer, the thermal transfer sheet and the sheet to be thermally transferred are fused together.

■For this reason, if you try to increase the amount of lubricant resin to ensure mold release, the compatibility will be poor and it will become cloudy, the lubricant resin will bleed out from the heat transfer sheet and stick to your hands, and the dyeability will decrease, resulting in poor compatibility during heat transfer. , a good image cannot be formed on the thermal transfer sheet.

[Means to solve the problem]

The present inventors have improved the compatibility of the dyeing resin with the resin that has mold releasability and low friction properties, and made the resin that has mold releasability and low friction properties into a reactive type, thereby improving heat resistance. The results of intensive research into thermal transfer sheets and coating materials for manufacturing thermal transfer sheets that improve image quality, prevent bleed-out from the thermal transfer sheets, and, as a result, form good image reception even when the transfer temperature is raised. , arrived at the present invention.

That is, the present invention covers a sheet base material, a dyeing resin formed on the base material and receiving the dye transferred from the thermal transfer sheet by heating, and a resin that improves mold releasability and low friction property. A thermal transfer sheet consisting of a resin having mold releasability and low friction, consisting of: ■ a monomer unit containing a barfluoroalkyl group and/or a monomer unit containing a polysiloxane group, and ■ a monomer unit containing an alkoxysilyl group. The present invention relates to a thermal transfer sheet and a coating material for producing a thermal transfer sheet, characterized in that it is made of a polymer having a body unit. .

The sheet base material in the present invention is not particularly limited. Preferred are synthetic paper, white extruded film, transparent film and paper.

In the dyeing resin that is formed on the base material and receives the dye transferred from the thermal transfer sheet by heating, the dyeing resin includes (a) Vinyl polymer: poly(meth)acrylic acid ester resin, polyester resin; Vinyl acetate resin, polystyrene (meth)acrylic ester resin, polystyrene resin, polyvinyltoluene (meth)acrylic ester resin, polyvinyl chloride resin, polyacrylonitrile resin, etc. (b) Polycondensation polymer: polyester resin, polyamide type Resins, polycarbonate resins, polysulfone resins, maleic acid resins, etc. (c) Polyaddition polymers: polyurethane resins, polyurea resins, epoxy resins, etc. (d) Ring-opening polymers: borocaprolactone resin, etc. (e) Other modifications Resin: Examples include polyvinyl butyral resin, polyvinyl formal resin, chlorinated polyester resin, tyrene resin, chlorinated polypropylene resin, nitrocellulose, cellulose acetate butyrate, cellulose acetate propylate, and mixtures of two or more thereof.

Among these, polyester resin, poly(
These include meth)acrylic acid ester resins, polyurethane resins, epoxy resins, cellulose-based and polyvinyl butyral resins, and mixtures of two or more thereof.

The dye that is transferred from the thermal transfer sheet by heating may be a dye that is conventionally known as a sublimable dye.

A thermal transfer sheet is a sheet that contains a sublimable dye and supplies the dye sublimated by heat to a thermal transfer sheet.

In the thermal transfer sheet of the present invention, (1) a perfluoroalkyl group-containing monomer unit and/or a polysiloxane group-containing monomer unit used as a resin having mold release properties and low thickness abrasion properties, and (1) alkoxy As the polymer having a silyl group-containing monomer unit, (a), a perfluoroalkyl group-containing polymerizable monomer (A
) and/or polysiloxane group-containing polymerizable monomer (
B) (1), a copolymer of an alkoxysilyl group-containing polymerizable monomer (C) and, if necessary, another polymerizable monomer (D).

Specific examples of the perfluoroalkyl group-containing polymerizable monomer (A) include C7Fl sCH20COCH"CH2, CtF+sC
H20COC(MeCC&, CF3(CF2)2cHa
OcOc(Me):C&,CF3(CFa)aCCH2
)20COC(Me)=CH2,CF3 (CF2)
s (C■2)20cOc(Me)”CH2,CF(C
F2) II (CH2) 20COCH: C &, CF (CF
2)6 (CHI)*OCOC(Me)”CHa,
CsF+vCHaCHCHHaOCOC(Me):CHa
, I O■ Cs F+ 7(CFh L + OCOC(Me):
C&, Ct F+ scON(Et)(CHa)tO
cOc(jle)”C&, Os F+ asO2N(M
e) (CHa)a OCOCII: CHasCs F
+ 7 S02 N (Pr) (CH2)t OCO
CII:C&,CsF+7SOJ(Me)(GHz)2
0cOc(Me)"C&, CsF+7SO2N(Me)
(CH2) IsOCOCH*CH=CFb, 1 CH2 :CHCOOCHII CHa, Cm F+
vsOaN(CH2CH20COCH:CHa)g,
HCFa(CFi)tcH20cOc(Me)”C&,
Barfluoroalkyl group-containing (meth)lylic acid esters such as; Cm F+ 7 (CH2 ) OCOGH=CHCO
OIe1 Aku? s F+ 7 (CH2)+ + OCOCH=CH
Bar-fluoroalkyl group-containing maleic acid mono- or diesters such as COOCH2Cv F+s; Examples include fluoroalkyl group-containing vinyl sulfones and mixtures of two or more thereof.

[In the above, Et represents an ethyl group, and Pr represents a propinole group. Among these, preferred are non-fluoroalkyl group-containing (meth)acrylic acid esters having 3 to 2 liters of carbon atoms or a mixture of two or more thereof.

The polysiloxane group-containing polymerizable monomer (B) has the general formula R1 X- CS i-0), -S i (Rs)*
(1) R2 (wherein X is a divalent organic group, RIst, s is a hydrocarbon group,
n=an integer from 6 to 130. ) Vinyl monomers that grow polysiloxane groups can be mentioned.

Specifically, monomers of the following general formula may be mentioned.

CB2”CHCOO(Gilt)z [:SI(CIl
s) aO] nSi(Cll3)*, C112=C(C
Ha) COOCsH4[Si(CHs)go] l,S
i(C]l[s)a1CH2=CCC■a)COO(O
L)i [51(CHa)*0]. SI(Clls
)asCH2:C(CH3)Coo(CHa)s
[: Sl(CHi)(CaHs)Oko,lS
i (CHs)3, CH*:C(CBa)Coo(CH*)a [51(C
sHi)*0] aSl(CHa)iz In the above formula, n:
It is an integer from 6 to 130.

Such.

Preferably CH*=C(CHa)000(CHs)i [:Si(
CHa)aO] ,,51(CHa)sCH2=C(C
Hs)COO(CH2)*[S1(C[Ia)(Ca
lls)O] llSI(CH!) and a mixture of two or more thereof.

As the alkoxysilyl group-containing polymerizable monomer (C),
(Meth)acrylic functional silanes, olefin functional silanes and combinations thereof.

(Meth)acrylic functional silanes include (meth)acryloxyalkylalkoxysilanes, such as γ-(
meth)acryloxypropyltrimethoxysilane, γ-(meth)acryloxypropylmethyldimethoxysilane, γ-(meth)acryloxypinoretriethoxysilane, γ-(meth)acryloxypropylmethyldiethoxysilane, and these A mixture of two or more types may be mentioned. Preferred are γ-methacrylic oxypropyltrimethoxysilane, γ-methacrylic oxypropylmethyldimethoxysilane, and mixtures thereof.

Olefin-functional silanes include vinyl alkoxysilanes, such as vinyltrimethoxysilane, vinyltriethoxysilane, ω-vininolebutyltrimethoxysilane, alkoxysilinoleanolekyl vinyl ethers, such as trimethoxysilylpropyl vinyl ether, and two types thereof. Mixtures of the above may be mentioned, preferably ω
-vinylbutyltrimethoxysilane.

Other polymerizable monomers (D) include (1) (meth)
Alkyl acrylate (alkyl group has 1 to 12 carbon atoms)
: Methyl (meth)acrylate, ethyl (meth)acrylate, n-butyl (meth)acrylate, etc.

(2) Hydroxyalkyl (meth)acrylate: 2-ethylhexyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, etc.

(3) Aromatic vinyl monomers: styrene, α-methylstyrene, α-chlorostyrene, etc.

(4) Vinyl halide monomer: Vinyl chloride etc.

(5) Alkyl or cycloalkyl vinyl ether: methyl vinyl ether, cyclohexyl vinyl ether, etc. (6) Vinyl ester: vinyl acetate, etc.

(7) Nitrile group-containing monomers: acrylonitrile, etc. (8) Amide group-containing monomers: (meth)acrylamide, crotonamide, N-methylolacrylamide, fumaric acid diamide, etc.

(9) Eboxy group-containing monomer: Glycidyl (meth)acrylate, etc.

(10) Carboxyl group-containing monomer: (meth)acrylic acid, (anhydrous)maleic acid, etc.

and mixtures of two or more thereof.

Preferred among these are alkyl (meth)acrylates and aromatic vinyl monomers, and particularly preferred are methyl methacrylate, n-butynoacrylate, and styrene.

The constituent weight of each monomer in the polymer (A) and/or (B) is usually 5 to 95%, preferably 10 to 95%.
It is 80%. (C) is usually 1 to 80%, preferably 3 to 30%. (D) is usually 0 to 95%, preferably 20 to 80%.

If the amount of (A) and/or (B) in the polymer is less than 5%, mold releasability and slipperiness will not be exhibited, and if it exceeds 95%, the compatibility with the dyeing resin will be poor.

If (C) is less than 1%, heat resistance will not be developed, and if it exceeds 80%, dyeability will be poor.

The method for producing a polymer includes a perfluoroalkyl group-containing polymerizable monomer (A) and/or a polysiloxane group-containing polymerizable monomer (B), and if necessary, other polymerizable monomer units (D). It can be produced by blending and subjecting it to bulk or solution polymerization according to radical polymerization such as thermal polymerization, photopolymerization, or radiation polymerization. Preferably in an organic solvent,
This is radical polymerization using a radical initiator. Organic solvents used include aromatic hydrocarbons (toluene, xylene, ethylbenzene, etc.), aliphatic hydrocarbons (hexane, hebutane, cyclohexane, etc.), aliphatic esters (ethyl acetate, n-butyl acetate, etc.), and aliphatic ketones. (
acetone, methyl ethyl, methyl isobutyl, di-n-butyl ketone, cyclohexanone, etc.),
Aliphatic ethers (dioxane, tetrahydrofuran, etc.), alcohols (methanol, ethanol, improbanol, n-butanol, etc.), cellosolves (ethyl cellosolve, n-butyl cellosolve, cellosolve acetate, etc.), halogenated hydrocarbons (carbon tetrachloride, etc.) , ethylene dichloride, etc.) and mixtures of two or more thereof. Preferred are toluene, xylene, methyl ethyl ketone, methyl isobutyl ketone, n-butyl acetate, ethyl acetate, ethanol, imbrobanol and ethylene dichloride, singly or in mixtures of two or more thereof.

The ratio of the organic solvent to all the monomers forming the polymer can be selected arbitrarily, but the weight ratio is usually 0.1:1 to 2:1, preferably 0.5:1 to 5:1.

When carrying out radical polymerization, the radical polymerization initiators used include azo compounds (azobisisobutyronitrile, azopisisovaleronitrile, etc.), peroxides (penzoyl peroxide, di-t-butyl peroxide,
(cumene hydroperoxide, etc.), redox compounds (penzoyl peroxide/N,N-dimethylaniline, etc.), and the like. Preferred are azo compounds.

The amount of the radical polymerization initiator added is usually 0.001 to 20%, preferably 0.01 to 10%, based on the total weight of monomers forming the polymer.

In some cases, a chain transfer agent (n-laurylmercabutane, n-dodecylmercabutane, t-dodecylmercabutane, γ-mercaptobrobyltrimethoxysilane, γ-mercaptopropylmethyldimethoxysilane, etc.) may be added. Molecular weight can be adjusted.

The reaction temperature of the radical polymerization reaction is usually 50 to 150°C, preferably 70 to 130'C.

The molecular weight of the obtained polymer is usually 500 to 6000,
Preferably it is iooo to 40,000.

The polymer can also be prepared by polymerizing each monomer in the dyeable resin.
It may also be obtained as a mixture with dyeable resin.

In preparing the thermal transfer sheet of the present invention, a coating liquid is prepared.

The coating liquid is generally obtained by mixing the dye-staining resin according to the present invention with a resin having mold release properties and low friction properties.

In addition, a material obtained by polymerizing a resin having mold releasability and low friction property in a dyeable resin may also be used. In addition, assuming two or more coatings, each coating liquid is a dye-staining resin and a resin that has mold releasability and low friction properties, and (l) the dye-staining resin coating liquid is applied. After that, a coating liquid of a resin having mold release properties and low friction properties or a coating liquid of a staining resin containing a resin having mold release properties and low friction properties may be applied.
2) After applying a dyeing resin coating solution containing a resin with mold releasability and low friction properties, a coating solution of a resin with mold release properties and low friction properties or a resin coating solution with mold release properties and low friction properties is applied. A coating liquid of a dyeable resin containing a resin having properties may be applied.

A coating may be formed on the sheet.

The composition ratio of dyeable resin and polymer is usually 100: by weight.
0.1-100:30, preferably 100:0.1-
100:10. If the composition ratio of the polymer is less than 0.1, the release and slip properties of the thermal transfer sheet during thermal transfer will be poor, and if the composition ratio is more than 30, the dye adhesion properties will be poor.

The coating solution is generally diluted with a solvent so that the resin content is 2 to 30% by weight. In that case, the solvent may be the solvent used when polymerizing the polymer, but in addition, hydrolyzable esters (trimethyl orthoformate, triethyl orthoformate, trimethyl orthoacetate, methyltrimethoxysilane, tetramethoxysilane, Tetraethoxysilane, tetra n-butoxysilane, vinyltriethoxysilane, γ-methacryloxypropyltrimethoxysilane, γ-glycidoxypropyltrimethoxysilane, γ-
As a polymer curing catalyst, a catalyst conventionally used as a silanol condensation catalyst can be added to a coating solution containing ureidoprobyltriethoxysilane, silicate, or a mixture of two or more thereof. . The catalysts generally include carboxylic acid type tin compounds (tin dioctylate, dibutyltin dilaurate, dibutyltin malate, etc.), sulfide type, mercabutide type, etc. merbutide, etc.), acidic phosphate esters (monomethyl acid phosphate, dimethyl acid phosphate, diethyl acid phosphate, monobutyl acid phosphate, etc.), carboxylic acids and their acid anhydrides (adibic acid, maleic acid, , citric acid, itaconic acid, succinic acid, phthalic acid, trimellitic acid, maleic anhydride, phthalic anhydride, etc.) aminosilanes (γ-aminopropyltriethoxysilane, γ-aminopropyltrimethoxysilane, etc.), amines and their salts (triethylamine, dibutylamine-2-hexoate, cyclic amidine and its salts, etc.), Yoiki titanate compounds [
[Isobrobyl triisostearoyl titanate, inbrovir tri(dioctylbirophosphate) titanate, tetrampipildi(lauryl phosphite) titanate, etc.] and other curing catalysts described in JP-A-58-1936 No. 1, and two or more thereof. A mixture of the following may be mentioned.

The amount of curing catalyst added is usually 0.01 to 400% relative to the polymer.
Weight%.

Other additives such as an ultraviolet absorber, an anti-aging agent, a leveling agent, and an antistatic agent may be added to the coating liquid. The amount added is usually 0.0% based on the resin content in the coating liquid.
001 to 10vt%.

The method for producing a thermal transfer sheet of the present invention includes, on a sheet base material,
It is created by applying the above-mentioned coating liquid and usually heat-treating it.

The coating method may be a conventionally known printing method, coating method, etc. on the sheet base material.

The thickness of the dyeing resin and the resin having mold releasability and low friction properties is usually about 2 to 30 μm.

The conditions for heat treatment are usually 60-150°C, 0.1-20°C.
It's a minute.

The thermal transfer sheet of the present invention can be provided with an antistatic layer on its front surface or back surface.

This treatment not only allows the thermal transfer sheets to slide smoothly against each other, but also has the effect of preventing dust and the like from adhering to the thermal transfer sheets.

Furthermore, the thermal transfer sheet can also be provided with a slipping layer on the back surface of the sheet base material. Examples of the material for the slipping layer include methacrylic ester resins such as methyl methacrylate, corresponding acrylic ester resins, and vinyl resins such as vinyl chloride-vinyl acetate copolymers.

Furthermore, it is also possible to provide detection marks at predetermined locations on the thermal transfer sheet. The detection mark is extremely convenient when positioning the thermal transfer sheet and the thermal transfer sheet, and for example, a detection mark that can be detected by a phototube detection device can be provided by printing on the back surface of the sheet base material.

The thermal transfer sheet may be used in a conventionally known manner.

〔Example〕

The present invention will be further explained below with reference to Examples, but the present invention is not limited thereto. Parts and percentages in the examples are by weight.

Example 1 60 parts of toluene was placed in a Kolben, the temperature was raised to 100°C, and 40 parts of methyl methacrylate and 2 parts of butyl methacrylate were added.
0 parts, GHQ= C(CH3)COO(CH2)s C S
ICCFh) 20 parts s*sI (CH3h30 parts, γ
- 10 parts of methoxytrimethoxysilane, 2 parts of azobisisobutyronitrile and 5 parts of toluene
A mixed solution of 1 part was added dropwise over 2 hours, and the mixture was then reacted at the same temperature for 1 hour. Furthermore, after adding 1 part of azobisisobutyronitrile, the reaction was carried out at the same temperature for 2 hours, and 40% of toluene was added.
1 part was added to obtain a polymer AI (coating material). In the IR (infrared absorption spectrum) of Polymer A+, there was no I C3 4 8 c- + absorption due to carbon-carbon double bonds.

The molecular weight measured by GPC was about 6,000.

Example 2 30 parts of methyl isobutyl ketone and 30 parts of toluene were placed in a Kolben, heated to 100"C, and 20 parts of methyl methacrylate, 20 parts of styrene, CH2"C(C
H3) C00(CH2)3 [51(CHs) 20 parts A mixed solution of 40 parts of assI (CHa), 10 parts of methacrylate methyldimethoxysilane, 1.5 parts of azobisisobutyronitrile and 5 parts of toluene was added. The mixture was added dropwise over 2 hours, and then reacted at the same temperature for 1 hour.

Furthermore, after adding 0.7 parts of azobisisobutyronitrile, the mixture was allowed to react at the same temperature for 2 hours, and 40 parts of toluene was added to obtain Polymer A2 (coating material). The IR (infrared absorption spectrum) of polymer A2 shows 1 due to a carbon-carbon double bond.
There was no absorption at 648 cm-1.

When the molecular weight was measured by GPC, it was about sooo.

Example 3 60 parts of toluene was added to Kolben and the temperature was raised to 100°C.
Butyl methacrylate 20 parts, styrene 20 parts, CH
2 = C(CIla)Coo(CH2hCSi
(CHs)2 0] +ssi(CHa)31 5
CFs(CFg)v(CHt)*OCOC(Me
)=C■2 15 parts, γ-methacryloxypropyl trimethoxysilane 10 parts, azobisisobutyronitrile 1.5 parts and toluene 5 parts were added dropwise over 2 hours, and then at the same temperature for 1 hour. Made it react. Furthermore, after adding 0.7 parts of azobisisobutyronitrile, the reaction was carried out at the same temperature for 2 hours, and 40 parts of toluene was added to form polymer A.
s (coating material) was obtained. The IR (infrared absorption spectrum) of polymer A3 has a wavelength of 1648 cm due to carbon-carbon double bonds.
There was no −+ absorption. The molecular weight measured by GPC was about 7,000.

Example 4 Kolben, 100 parts of methyl isobutyl ketone and polyester resin (manufactured by Toyobo; Vylon RV-103)
Add 100 parts and raise the temperature to 100°C, add 2 parts of butyl methacrylate, 2 parts of styrene, CH* = C (Clh
)COO(Clllt h[: Si(CHs)
20 pieces +sS1(CHa)s l part, CFi(C
F2)t(CI1g)tOc(Ic(Me)=CH21
1 part of γ-methacryloxybrobylmethyldimethoxysilane and 0.1 part of azobisisobutyronitrile
A mixed solution of 1.5 parts was added dropwise over 2 hours, and the mixture was then reacted at the same temperature for 1 hour. Furthermore, azobisisobutyronitrile 0.
After adding 05 parts, the mixture was reacted at the same temperature for 2 hours to obtain Polymer A (coating material). The IR (infrared absorption spectrum) of polymer A4 shows 1 6 carbon-carbon double bonds.
There was no absorption at 48 cm-+.

The molecular weight measured by GPC was about 20,000.

Example 5 Fullpen, 50 parts of butyl acetate and polyvinyl butyral resin (Sekisui Chemical: SLEC B BL-
S) 10 parts, heated to 100°C, butyl methacrylate 20 parts, styrene 20 parts, Ga12=C
(CH3)Coo(CH2)a [51(CI13
) A mixed solution of 20 parts of Sl(CHa)*, 10 parts of γ-methacrylic silane, 1.5 parts of azobisisobutyronitrile, and 5 parts of toluene was added dropwise over 2 hours. Thereafter, the mixture was reacted at the same temperature for 1 hour.

Furthermore, after adding 0.7 parts of azobisisobutyronitrile, the mixture was allowed to react at the same temperature for 2 hours, and 40 parts of butyl acetate was added to obtain a polymer As (coating material). IR of polymer A5 (
In the infrared absorption spectrum), there was no absorption of IE348c- due to carbon-carbon double bonds. The molecular weight was determined to be approximately 7,500 by GPC.

Comparative Example 1 60 parts of toluene was added to Kolben, the temperature was raised to 100°C, and 10 parts of methyl methacrylate and 1 part of butyl methacrylate were added.
0 parts, CH2=C(CHs)COO(Cllla)a [S1
(CHa)go] A mixed solution of 80 parts of i@si(GHz)s, 1 part of azobisisobutyronitrile, and 5 parts of toluene was added dropwise over 2 hours, and then reacted at the same temperature for 1 hour. Furthermore, after adding 0.5 part of azobisisobutyronitrile, the reaction was carried out at the same temperature for 2 hours, and 40 parts of toluene was added.
Polymer B was obtained. The IR (infrared absorption spectrum) of polymer BI shows 16
There was no absorption at 48 cm-+. The molecular weight measured by GPC was approximately 15,000.

Examples 6 to 17, Comparative Examples 2 and 3 Examples 1 to 5, Polymers A and ~As and B+ obtained in Comparative Example 1
A thermal transfer sheet was obtained using the following method.

Preparation of dyeable resin liquid (a), polyvinyl butyral resin (manufactured by Sekisui Chemical;
SLEC B BL-S) 10flB,
A resin solution dissolved in 45 parts of methyl ethyl ketone and 45 parts of ethyl acetate.

A resin liquid prepared by dissolving 10 parts of epoxy resin (manufactured by Mitsui Petrochemicals; Epomic R-301) in 45 parts of toluene and 45 parts of ethyl acetate.

(c) Polyester resin (manufactured by Toyobo; Byron RV-
103) A resin liquid prepared by dissolving 10 parts with 90 parts of ethyl acetate.

(2) A resin liquid prepared by dissolving 5 parts of cellulose acetate butyrate (manufactured by Eastman Kodak; CAB381-0, 5) in 50 parts of ethyl acetate and 45 parts of methyl ethyl ketone.

(e) A resin liquid obtained by diluting Aa20ro obtained in Example 4 with 80 parts of methyl ethyl ketone.

The thermal transfer sheet was coated with a wire bar using the formulation shown in Table 1 below.

The stainability evaluation in Table 1 is as follows: Video printer (Matsushita Electric: AG-EP70) Thermal transfer sheet (Matsushita Electric: VW-IS100) Thermal transfer sheet (sheet obtained above) was used for thermal transfer, and the dyeability was evaluated on a scale of 10.

(10 excellent to 0 poor) The mold releasability and slipperiness evaluation in Table 1 was performed by the following method.

Preparation of thermal transfer sheet An ink composition for forming a thermal transfer layer having the following composition was prepared on one side of an aluminum film with a thickness of 5 μm, and applied with a wire bar (approximately i.og/m2 coating amount when dry) and dried with warm air. A thermal transfer layer was formed to obtain a thermal transfer sheet.

Ink composition for forming thermal transfer layer Disperse dye (Nippon Kayaku: Kayaset Blue 714)
7 parts polyvinyl butyral resin (Sekisui Chemical: S-LEC B
BX-1) 35 parts Solvent (methyl ethyl ketone/toluene = 1/1 90 parts) The thermal transfer sheet obtained above and the thermal transfer sheet shown in Table 1 below are stacked so that the image receiving layer and the thermal transfer layer are in contact with each other. , From the thermal transfer sheet side, the surface temperature is 350℃X1
A thermal head was applied under the conditions of sec. Immediately after, the thermal transfer sheet and the thermal transfer sheet were peeled off, and the results of the mold release and slip properties are shown in Table 1. (○: Good releasability and slipperiness, Δ: Slight occurrence of fusion, X: Severe fusion) [Effects of the Invention] The thermal transfer sheet and the coating material for manufacturing the thermal transfer sheet of the present invention are as follows. be effective.

The heat transfer sheet and the coating material for producing the heat transfer sheet of the present invention have good compatibility between the dyeable resin and the resin having mold releasability and low friction properties, and which form the image receiving layer. By using a reactive type resin that has high elasticity and low friction, heat resistance was improved and bleed-out from the heat transfer sheet was prevented. As a result, we have obtained a thermal transfer sheet and a coating material for manufacturing thermal transfer sheets that form good image reception even when the transfer temperature is raised, which has been attempted in recent years to shorten the transfer time during thermal transfer recording. It was.

Claims (1)

[Scope of Claims] 1. A sheet base material, a dyeing resin formed on the base material and capable of receiving the dye transferred from the thermal transfer sheet by heating, and a resin having mold releasability and low friction property coated. A thermal transfer sheet consisting of a resin having mold releasability and low friction properties, (1) a perfluoroalkyl group-containing monomer unit and/or a polysiloxane group-containing monomer unit, and (2) A thermal transfer sheet comprising a polymer having an alkoxysilyl group-containing monomer unit. 2. The thermal transfer sheet according to claim 1, wherein the weight ratio of the dyeable resin to the resin having releasability and low friction properties is 100:0.1 to 100:30. 3. The content of perfluoroalkyl group-containing monomers and/or polysiloxane group-containing monomers in the resin having mold releasability and low friction properties is 5 to 95% by weight, and the amount of alkoxysilyl group-containing monomers Body composition: 1 to 50% by weight
The thermal transfer sheet according to claim 1 or 2. 4. In a coating material for producing a thermal transfer sheet, which is made by mixing and/or using a dye-staining resin that accepts the dye transferred from the thermal transfer sheet by heating and a resin that has mold releasability and low friction properties, (1) perfluoroalkyl group-containing monomer units and/or polysiloxane group-containing monomer units;
and (2) a coating material for producing a thermal transfer sheet, characterized by using a polymer having an alkoxysilyl group-containing monomer unit.