Composition for forming image-receiving layer provided to transfer substrate, and transfer substrate

Abstract

The present invention addresses the problem of providing: a transfer substrate enabling an increase in receptivity with respect to color ink for forming an image and white ink for forming an underlayer and an increase in transferability during transfer printing; and a composition for forming an image-receiving layer provided to such a transfer substrate.　Provided is a transfer substrate comprising a substrate layer and an image-receiving layer, said transfer substrate being characterized in that: the image-receiving layer or a composition for forming the image-receiving layer contains a (meth)acrylic resin, particles having an average particle diameter of not less than 0.2 μm, and a flocculant; and the particles satisfy at least one condition among the following conditions (1)-(3).　(1) The particles do not have a glass transition point. (2) The glass transition temperature of the particles is not lower than 50°C. (3) The melting point of the particles is not lower than 80°C.

Description

A composition for forming an image-receiving layer provided on a transfer substrate, and a transfer substrate 【0001】 This disclosure relates to a composition for forming an image-receiving layer provided on a transfer substrate, and to a transfer substrate. 【0002】 A transfer printing method is known in which a transfer medium on which an image is formed is placed on a substrate, and the image is transferred to the substrate by applying heat treatment or the like. The substrate of the transfer medium is generally provided with a layer to prevent the image from remaining on the substrate after transfer, and to give the substrate absorbency for the ink printed on it. 【0003】 For example, Patent Document 1 describes a method of preparing a transfer substrate in which a release-type ink-receiving layer is formed by coating a polyester resin film with an ink-receiving layer-forming treatment agent containing silica, silicone oil, polyurethane resin, and silicone wax, and then performing transfer printing using this substrate. 【0004】 Japanese Patent Publication No. 2022-147673 【0005】 However, it has been found that the transfer substrate described in Patent Document 1 may have insufficient transferability. Furthermore, if the color ink that forms the image printed on the transfer substrate bleeds, the printed material will have poor image quality. Therefore, there is a need for a transfer substrate that can suppress the bleeding of color ink (i.e., has improved color ink receptivity). In addition, in some cases, a white ink that forms the background of the image may be printed on the transfer substrate for purposes such as improving opacity, and there is a need to improve the receptivity of this white ink to prevent the background from extending beyond the area to be printed. 【0006】 Therefore, the object of this disclosure is to provide a transfer substrate that can enhance the receptivity of color inks that form an image and white inks that form a base, and can also enhance the transferability during transfer printing, and a composition for forming an image-receiving layer provided on the transfer substrate. 【0007】As a result of diligent research to solve the aforementioned problems, the present inventors have discovered that by using a transfer substrate on which an image-receiving layer is provided, which is formed from a composition containing a (meth)acrylic resin, specific particles with an average particle diameter of 0.2 μm or more, and a flocculant, the receptivity of color inks and white inks, as well as the transferability during transfer printing, can be improved, thus completing the contents of this disclosure. 【0008】In other words, the gist of this disclosure is as follows: [1] A composition for forming an image-receiving layer provided on a transfer substrate, comprising a (meth)acrylic resin, particles having an average particle diameter of 0.2 μm or more, and a flocculant, wherein the particles satisfy at least one of the following requirements (1) to (3): (1) having no glass transition temperature (2) having a glass transition temperature of 50°C or higher (3) having a melting point of 80°C or higher [2] The composition according to [1], wherein the transfer substrate is used for thermal transfer. [3] The composition according to [1] or [2], wherein the transfer substrate is used for transfer printing onto fabric. [4] The composition according to any one of [1] to [3], wherein the (meth)acrylic resin is emulsion particles. [5] The composition according to any one of [1] to [4], wherein the acid value of the (meth)acrylic resin is 50 mg KOH / g or less. [6] The composition according to any one of [1] to [5], wherein the glass transition temperature of the (meth)acrylic resin is -50°C or higher and less than 50°C. [7] A transfer substrate comprising a base layer and an image receiving layer, wherein the image receiving layer comprises a (meth)acrylic resin, particles having an average particle diameter of 0.2 μm or more, and a flocculant, and the particles satisfy at least one of the following requirements (1) to (3): (1) having no glass transition temperature (2) having a glass transition temperature of 50°C or higher (3) having a melting point of 80°C or higher. [8] The transfer substrate according to [7], used for thermal transfer. [9] The transfer substrate according to [7] or [8], used for transfer printing onto fabric.

[10] The transfer substrate according to any one of [7] to [9], wherein the acid value of the (meth)acrylic resin is 50 mg KOH / g or less.

[11] The transfer substrate according to any one of [7] to

[10] , wherein the glass transition temperature of the (meth)acrylic resin is -50°C or higher and less than 50°C.

[12] The transfer substrate according to any one of [7] to

[11] , wherein the image receiving layer is laminated on the substrate layer without a release layer in between. 【0009】According to this disclosure, it is possible to improve the receptivity of the color ink that forms the image and the white ink that forms the background, and to improve the transferability during transfer printing. Preferably, according to this disclosure, the wet friction fastness of the resulting transfer print can be improved. Furthermore, when the transfer medium is a fabric, it is assumed that the resulting transfer print will be subjected not only to washing but also to tumble drying, which is drying under harsh conditions, so wash fastness and tumble drying fastness (hereinafter referred to as wash and tumble drying fastness) are required, and preferably according to this disclosure, the wash and tumble drying fastness of the resulting transfer print can be improved. 【0010】 Figure 1 is a schematic cross-sectional view showing an example of a transfer substrate of this disclosure. Figure 2 is a schematic diagram showing an example of the transfer process. Figure 3 is a schematic diagram showing another example of the transfer process. 【0011】 One embodiment of this disclosure will be described below, but this disclosure is not limited thereto. Unless otherwise specified in this specification, "A to B" representing a numerical range means "A or greater, B or less." Also, "(meth)acrylic acid" means acrylic acid or methacrylic acid, and "(meth)acrylate" means acrylate or methacrylate. The same applies to terms such as "(meth)acryloxy" and "(meth)acryloyl." Furthermore, "structural unit derived from ~" corresponds to a structure in which the carbon-carbon double bond of each monomer component is replaced by a carbon-carbon single bond and two bonds attached to each carbon. 【0012】 1. Composition for Forming an Image Receiving Layer The composition of this disclosure is a composition for forming an image receiving layer (hereinafter sometimes referred to as an image receiving layer forming composition), and comprises a (meth)acrylic resin, particles with an average particle diameter of 0.2 μm or more, and a flocculant, wherein the particles satisfy at least one of the following requirements: (1) have no glass transition temperature; (2) have a glass transition temperature of 50°C or higher; and (3) have a melting point of 80°C or higher. The components constituting the image receiving layer forming composition will be described below. 【0013】1-1. (Meth)acrylic resin The image-receiving layer-forming composition of this disclosure includes a (meth)acrylic resin (hereinafter sometimes referred to as (meth)acrylic resin (A)). The inclusion of (meth)acrylic resin (A) enhances the transferability during transfer printing and improves the wash and tumble-dry fastness of the resulting transfer print. 【0014】 (Meth)acrylic resin (A) is a resin and / or derivative thereof obtained by polymerizing or copolymerizing monomer components containing (meth)acrylic monomers having (meth)acryloyl groups. The total content of structural units derived from (meth)acrylic monomers is preferably 30% by mass or more, more preferably 50% by mass or more, even more preferably 65% ​​by mass or more, even more preferably 80% by mass or more, particularly preferably 90% by mass, and may also be 100% by mass, based on 100% by mass of structural units derived from all monomer components constituting (meth)acrylic resin (A). 【0015】 The (meth)acrylic resin (A) preferably has a glass transition temperature. The (meth)acrylic resin (A) preferably has a glass transition temperature (Tg) of -50°C or higher and less than 50°C, more preferably -30 to 40°C, even more preferably -10 to 30°C, and particularly preferably 0 to 20°C. Having a Tg of the (meth)acrylic resin (A) below the above upper limit allows the image receiving layer to stretch appropriately, thereby improving the wash and tumble-dry fastness of the resulting transfer print. Furthermore, the transfer substrate provided with the image receiving layer may be stored wound into a roll, in which case blocking by the image receiving layer may become a problem. Having a Tg of the (meth)acrylic resin (A) above the above lower limit suppresses such blocking and further improves the wet friction fastness of the resulting transfer print. The Tg of the (meth)acrylic resin (A) can be determined by differential scanning calorimetry (DSC), as shown in the examples. 【0016】Furthermore, when using two or more types of (meth)acrylic resins (A) as the (meth)acrylic resin (A), or when the (meth)acrylic resin (A) takes on a core-shell structure, multiple Tg values ​​may be observed. In this case, it is sufficient if at least one Tg value satisfies the above range, but it is preferable that all Tg values ​​satisfy the above range. 【0017】 The acid value of the (meth)acrylic resin (A) is preferably 50 mg KOH / g or less, more preferably 40 mg KOH / g or less, even more preferably 30 mg KOH / g or less, and may be 0 mg KOH / g. By adjusting the acid value of the (meth)acrylic resin (A) to the above range, the adhesion between the substrate layer (especially a substrate layer made of polyester such as polyethylene terephthalate) and the image receiving layer tends to decrease, and the transferability tends to be further improved. In addition, aggregation between the (meth)acrylic resin (A) and the flocculant (C) described later can be suppressed, thereby improving the storage stability of the image receiving layer forming composition. The acid value of the resin can be determined by calculating the number of mg of potassium hydroxide required to neutralize the acid groups (carboxyl groups, sulfo groups, phosphate groups, etc.) present in 1 g of the monomer components constituting the resin, and adopting the obtained value as the acid value of the resin. 【0018】 The weight-average molecular weight (Mw) of the (meth)acrylic resin (A) is, for example, 3,000 to 1,500,000, preferably 5,000 to 1,200,000, and more preferably 10,000 to 1,000,000. The weight-average molecular weight (Mw) of the (meth)acrylic resin (A) can be calculated by the standard polystyrene equivalent method using gel permeation chromatography (GPC). 【0019】The (meth)acrylic resin (A) preferably contains a structural unit derived from an alkyl (meth)acrylate. Examples of the alkyl (meth)acrylate include linear alkyl (meth)acrylates such as methyl (meth)acrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, isopropyl (meth)acrylate, n-butyl (meth)acrylate, isobutyl (meth)acrylate, tert-butyl (meth)acrylate, sec-butyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, n-octyl (meth)acrylate, 2-octyl (meth)acrylate, tridecyl (meth)acrylate, n-lauryl (meth)acrylate, dodecyl (meth)acrylate, and stearyl (meth)acrylate; cyclic alkyl (meth)acrylates such as cyclohexyl (meth)acrylate and isobornyl (meth)acrylate; and the like. The structural unit derived from the alkyl (meth)acrylate may be contained alone or in combination of two or more in the (meth)acrylic resin (A). 【0020】 Among the above alkyl (meth)acrylates, an alkyl (meth)acrylate whose glass transition temperature (Tg) of the homopolymer is -20°C or lower (hereinafter sometimes referred to as a low-Tg alkyl (meth)acrylate) and / or a C 1-5 alkyl methacrylate are preferably contained, and it is more preferable to contain at least a low-Tg alkyl (meth)acrylate. By appropriately adjusting the content of the structural units derived from these monomers, it becomes easy to adjust the Tg of the (meth)acrylic resin (A). 【0021】In this specification, the "glass transition temperature of the homopolymer" may be, for example, the value described in "POLYMER HANDBOOK THIRD EDITION" (by J. BRANDRUP and E. H. IMMERGUT, published in 1989 by John Wiley & Sons, Inc., pages: VI / 209 - VI / 277) (when multiple Tg values are described, the lowest value) may be adopted. For compounds not described in "POLYMER HANDBOOK THIRD EDITION", the value (calculated value) obtained by a computer using commercially available glass transition temperature calculation software (for example, "MATERIALS STUDIO" manufactured by Accelrys Software Inc., version: 4.0.0.0, module: Synthia, condition: calculated with a polymerization average molecular weight of 100,000) may be used. 【0022】 The Tg of the low-Tg (meth)acrylic acid alkyl ester is -20°C or lower, preferably -100 to -20°C, and more preferably -80 to -30°C. Examples of the low-Tg (meth)acrylic acid alkyl ester include ethyl acrylate, n-propyl acrylate, n-butyl acrylate, isobutyl acrylate, n-pentyl acrylate, n-hexyl acrylate, n-octyl acrylate, 2-octyl acrylate, 2-ethylhexyl acrylate, n-nonyl acrylate, isononyl acrylate, etc. Among them, at least one selected from n-butyl acrylate, 2-octyl acrylate, and 2-ethylhexyl acrylate is preferable. 【0023】 The methacrylic acid C 1-5 alkyl ester refers to a compound in which the number of carbon atoms in the alkyl group constituting the methacrylic acid alkyl ester is 1 to 5. Among them, methacrylic acid C 1-4 chain alkyl esters such as methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, and tert-butyl methacrylate are preferable, and methyl methacrylate is more preferable. 【0024】Furthermore, from the viewpoint of further improving transferability, it is preferable that the (meth)acrylic resin (A) contains structural units derived from cyclic alkyl (meth)acrylate as structural units derived from alkyl (meth)acrylate. Among cyclic alkyl (meth)acrylates, cycloalkyl (meth)acrylate and / or isobornyl (meth)acrylate, in which the number of carbon atoms constituting the cycloalkyl group is 4 to 8, is preferred, and cyclohexyl (meth)acrylate and / or isobornyl (meth)acrylate is more preferred. 【0025】 The content of structural units derived from alkyl (meth)acrylate is preferably 30 to 100% by mass, more preferably 50 to 98% by mass, and even more preferably 75 to 95% by mass, of the total amount of structural units derived from monomer components constituting the (meth)acrylic resin (A). In addition, structural units derived from low-Tg alkyl (meth)acrylate and methacrylate C 1-5 The total content of structural units derived from alkyl esters is preferably 20 to 100% by mass, more preferably 35 to 90% by mass, and even more preferably 45 to 80% by mass, out of 100% by mass of structural units derived from all monomer components constituting the (meth)acrylic resin (A). Furthermore, the content of structural units derived from cyclic alkyl esters of (meth)acrylic acid is preferably 0 to 60% by mass, more preferably 5 to 50% by mass, and even more preferably 15 to 40% by mass, out of 100% by mass of structural units derived from all monomer components constituting the (meth)acrylic resin (A). 【0026】 The (meth)acrylic resin (A) preferably further contains structural units derived from hydroxyl group-containing monomers. By including structural units derived from hydroxyl group-containing monomers in the resin, the dispersion stability of emulsion particles composed of resin (A) in the composition of the present disclosure can be improved when the composition of the present disclosure contains an aqueous solvent. 【0027】 A hydroxyl group-containing monomer is a monomer having at least one hydroxyl group and at least one polymerizable unsaturated group in its molecule. Examples of polymerizable unsaturated groups include vinyl groups and (meth)acryloyl groups, with (meth)acryloyl groups being preferred. 【0028】 Examples of hydroxyl group-containing monomers include hydroxyalkyl (meth)acrylates such as 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, 5-hydroxypentyl (meth)acrylate, 6-hydroxyhexyl (meth)acrylate, and 8-hydroxyoctyl (meth)acrylate; halogen-substituted hydroxyalkyl (meth)acrylates such as 3-chloro-2-hydroxypropyl (meth)acrylate; modified hydroxyalkyl (meth)acrylates such as caprolactone-modified 2-hydroxyethyl (meth)acrylate and 2-(meth)acryloyloxyethyl 2-hydroxyethyl phthalic acid; di- or polyalkylene glycol mono(meth)acrylates such as diethylene glycol (meth)acrylate and polyethylene glycol (meth)acrylate; and others. Among these, hydroxyC (meth)acrylate is particularly noteworthy. 1-10 Alkyl esters are preferred, and hydroxy C (meth)acrylate is preferred. 1-4 Alkyl esters are more preferred. 【0029】 The structural units derived from hydroxyl group-containing monomers may be present in the (meth)acrylic resin (A) alone or in groups of two or more. 【0030】 The content of structural units derived from hydroxyl group-containing monomers is, for example, 0 to 20% by mass, preferably 1 to 10% by mass, and more preferably 3 to 8% by mass, out of 100% by mass of structural units derived from all monomer components constituting the (meth)acrylic resin (A). 【0031】 The (meth)acrylic resin (A) may further contain structural units derived from acid group-containing monomers. Including structural units derived from acid group-containing monomers can enhance the stability of emulsion particles composed of the (meth)acrylic resin (A). 【0032】The acid group-containing monomer is one that has at least one acid group and at least one polymerizable unsaturated group in its molecule. Examples of the acid group include a sulfo group, a phosphoric acid group, a carboxyl group, and so on, with the carboxyl group being preferred. Examples of the polymerizable unsaturated group include a vinyl group, a (meth)acryloyl group, and so on, with the (meth)acryloyl group being preferred. 【0033】 Examples of acid group-containing monomers include unsaturated monocarboxylic acids such as (meth)acrylic acid, cinnamic acid, and crotonic acid; unsaturated dicarboxylic acids such as maleic acid, fumaric acid, itaconic acid, and citraconic acid; monoesters of unsaturated dicarboxylic acids such as monomethyl maleic acid, monobutyl maleic acid, monomethyl itaconic acid, and monobutyl itaconic acid; anhydrides of unsaturated dicarboxylic acids such as maleic anhydride; and 2-acryloyloxyethyl succinic acid, 2-acryloyloxyethyl phthalic acid, and 2-acryloyloxyethyl hexahydrophthalic acid. Among these, unsaturated monocarboxylic acids are preferred as acid group-containing monomers, and (meth)acrylic acid is more preferred. 【0034】 The structural units derived from acid group-containing monomers may be present in the (meth)acrylic resin (A) individually or in groups of two or more. 【0035】The content of structural units derived from acid group-containing monomers is, for example, 10.0% by mass or less, preferably 5.0% by mass or less, more preferably less than 4.0% by mass, even more preferably 3.5% by mass or less, particularly preferably 2.5% by mass or less, and may even be 0% by mass, based on 100% by mass of structural units derived from all monomer components constituting the (meth)acrylic resin (A). By adjusting the content of structural units derived from acid group-containing monomers to the above range, the adhesion between the substrate layer (especially a substrate layer made of polyester such as polyethylene terephthalate) and the image receiving layer tends to decrease, and the transferability tends to be further improved. In addition, aggregation between the (meth)acrylic resin (A) and the flocculant (C) described later can be suppressed, thereby improving the storage stability of the image receiving layer forming composition. The content of structural units derived from acid group-containing monomers may be 0.5% by mass or more, 1.0% by mass or more, or 1.5% by mass or more, based on 100% by mass of structural units derived from all monomer components constituting the (meth)acrylic resin (A). By adjusting the content of structural units derived from acid group-containing monomers within the above range, the stability of emulsion particles can be further enhanced. 【0036】 The (meth)acrylic resin (A) may further contain structural units derived from styrene monomers. The styrene monomers include styrene; halogen atoms (e.g., fluorine atoms, chlorine atoms, bromine atoms, iodine atoms); alkyl groups (e.g., methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, tert-butyl group, etc.) 1-4 Alkyl groups, vinyl groups, alkoxysilyl groups (e.g., trimethoxysilyl group, triethoxysilyl group, etc.) 1-4Styrene having one or more substituents such as an alkoxysilyl group); and the like. As the substituent, at least one selected from a halogen atom and an alkyl group is preferable. Specific examples of the styrene-based monomer include vinyltoluenes such as styrene, α-methylstyrene, p-methylstyrene, tert-butylstyrene, chlorostyrene, chloromethylstyrene, divinylbenzene, p-styryltrimethoxysilane, 2-styrylethyltrimethoxysilane, and the like. Among the styrene-based monomers, styrene is preferable from the viewpoint of enhancing the water resistance of the obtained transfer print. 【0037】 The structural unit derived from the styrene-based monomer may be contained alone or in combination of two or more in the (meth)acrylic resin (A). 【0038】 The content of the structural unit derived from the styrene-based monomer is, for example, 30% by mass or less, preferably 15% by mass or less, more preferably 5% by mass or less, and still more preferably 0% by mass in 100% by mass of the structural units derived from all monomer components constituting the (meth)acrylic resin (A). By adjusting the content of the structural unit derived from the styrene-based monomer within the above range, the adhesion between the base material layer (especially the base material layer composed of a polyester such as polyethylene terephthalate) and the image receiving layer is reduced, and the transferability tends to be further enhanced. 【0039】 In particular, the (meth)acrylic resin (A) preferably contains a structural unit derived from an alkyl (meth)acrylate and a structural unit derived from a hydroxyl group-containing monomer. The total content of the structural unit derived from the alkyl (meth)acrylate and the structural unit derived from the hydroxyl group-containing monomer is preferably 50% by mass or more, more preferably 75% by mass or more, still more preferably 90% by mass or more, and may be 100% by mass in 100% by mass of the structural units derived from all monomer components constituting the (meth)acrylic resin (A). 【0040】 Further, the (meth)acrylic resin (A) preferably contains a structural unit derived from a low-Tg alkyl (meth)acrylate, and the structural unit derived from the low-Tg alkyl (meth)acrylate and methacrylic acid C 1-5It is more preferable to include at least one structural unit selected from the group consisting of structural units derived from alkyl esters, structural units derived from cyclic alkyl (meth)acrylates, and structural units derived from hydroxyl group-containing monomers, and more preferably a structural unit derived from a low-Tg alkyl (meth)acrylate, a structural unit derived from a hydroxyl group-containing monomer, and C methacrylate. 1-5 It is even more preferable to include structural units derived from alkyl esters and / or structural units derived from cyclic alkyl (meth)acrylate esters. 【0041】 The (meth)acrylic resin (A) may have structural units derived from monomers other than alkyl (meth)acrylates, hydroxyl group-containing monomers, acid group-containing monomers, and styrene monomers. Other monomers are not particularly limited and include, for example, other (meth)acrylic monomers such as alkoxyalkyl group-containing (meth)acrylates (e.g., methoxyethyl (meth)acrylate, methoxybutyl (meth)acrylate), piperidine group-containing (meth)acrylates (e.g., 4-(meth)acryloyloxy-2,2,6,6-tetramethylpiperidine, 4-(meth)acryloyloxy-1,2,2,6,6-pentamethylpiperidine); 2-vinyl-2-oxazoline, 2-vinyl-4-methyl-2-oxazoline, 2-vinyl-5-methyl-2-oxazoline, 2- Examples include addition polymerizable oxazolines such as sopropenyl-2-oxazoline, 2-isopropenyl-4-methyl-2-oxazoline, 2-isopropenyl-5-methyl-2-oxazoline, and 2-isopropenyl-5-ethyl-2-oxazoline; vinyl monomers such as vinyl acetate, vinyl chloride, and vinyl benzoate; acrylonitrile; (meth)acrylamide monomers such as (meth)acrylamide, N-monomethyl(meth)acrylamide, N-monoethyl(meth)acrylamide, and N,N-dimethyl(meth)acrylamide; olefin monomers such as ethylene and propylene; and others. Structural units derived from other monomers may be included in the (meth)acrylic resin (A) individually or in groups of two or more. 【0042】The content of structural units derived from other monomers is preferably 30% by mass or less, more preferably 10% by mass or less, and even more preferably 5% by mass or less, out of 100% by mass of structural units derived from all monomer components constituting the (meth)acrylic resin (A), and may be 0% by mass. 【0043】 The image-receiving layer-forming composition of this disclosure may contain one or more (meth)acrylic resins (A). 【0044】 As the (meth)acrylic resin (A), a commercially available product may be used, or it may be synthesized as appropriate. When (meth)acrylic resin (A) is obtained by synthesis, it can be produced by conventionally known polymerization methods, such as solution polymerization, bulk polymerization, suspension polymerization, and emulsion polymerization. Among these, emulsion polymerization is preferred, specifically, a method in which monomer components that form the constituent units of (meth)acrylic resin (A) (alkyl methacrylate, hydroxyl group-containing monomer, acid group-containing monomer, styrene monomer, and other monomers) are emulsion-polymerized in water in the presence of an emulsifier and a polymerization initiator is preferred. By employing emulsion polymerization, an emulsion in which the (meth)acrylic resin (A) is dispersed as emulsion particles is obtained, making it easy to prepare the image-receiving layer-forming composition. The specific means and conditions for polymerization may be appropriately selected and adopted from conventionally known means and techniques. 【0045】 Examples of emulsifiers used in the emulsion polymerization described above include nonionic emulsifiers, anionic emulsifiers, cationic emulsifiers, amphoteric emulsifiers, and polymer emulsifiers. These emulsifiers may be used individually or in combination of two or more types. Among the above emulsifiers, nonionic emulsifiers and / or anionic emulsifiers are preferred, and nonionic emulsifiers are more preferred from the viewpoint of suppressing aggregation with the flocculant (C) and improving the storage stability of the image-receiving layer-forming composition. Furthermore, from the viewpoint of further improving the wet friction fastness of the resulting transfer print, emulsifiers containing polymerizable groups in their molecules (hereinafter sometimes referred to as reactive emulsifiers) are preferred. 【0046】Examples of anionic emulsifiers include alkyl sulfate salts such as ammonium dodecyl sulfate and sodium dodecyl sulfate; alkyl sulfonate salts such as ammonium dodecyl sulfonate, sodium dodecyl sulfonate, and sodium alkyldiphenyl ether disulfonate; alkylaryl sulfonate salts such as ammonium dodecylbenzene sulfonate and sodium dodecylnaphthalene sulfonate; polyoxyethylene alkyl sulfonate salts; polyoxyethylene alkyl ether sulfate salts; polyoxyethylene alkylaryl ether sulfate salts; dialkyl sulfosuccinates; aryl sulfonic acid-formaldehyde condensates; fatty acid salts such as ammonium laurylate and sodium stearate; Propenyl-alkyl sulfosuccinate salts, (meth)acrylate polyoxyethylene sulfonate salts, (meth)acrylate polyoxyethylene phosphate salts (e.g., Eleminor RS-30 manufactured by Sanyo Chemical Industries, Ltd.), polyoxyethylene alkylpropenylphenyl ether sulfonate salts (e.g., Aqualon HS-10 manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), allyloxymethylalkyloxypolyoxyethylene sulfonate salts (e.g., Aqualon KH-10 manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), polyoxyethylene styrene-propenylphenyl ether sulfate Examples of reactive anionic emulsifiers include monoum (such as Aqualon AR-10 manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), allyloxymethyl nonylphenoxyethyl hydroxypolyoxyethylene sulfonate salts (such as Adekarya Soap SE-10 manufactured by ADEKA Corporation), allyloxymethyl alkoxyethyl hydroxypolyoxyethylene sulfate salts (such as Adekarya Soap SR-10 and SR-30 manufactured by ADEKA Corporation), and bis(polyoxyethylene polycyclic phenyl ether) methacrylate sulfonate salts (such as Antox MS-60 manufactured by Nippon Emulsifier Co., Ltd.). 【0047】Examples of nonionic emulsifiers include polyoxyethylene alkyl ethers; polyoxyethylene alkylaryl ethers; polyoxyethylene polycyclic phenyl ethers; condensates of polyethylene glycol and polypropylene glycol; sorbitan fatty acid esters; polyoxyethylene sorbitan fatty acid esters; fatty acid monoglycerides; condensation products of ethylene oxide and aliphatic amines; reactive nonionic emulsifiers such as polyoxyethylene styrene-propenylphenyl ether (e.g., Aqualon AN-10 manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), allyloxymethyl alkoxyethyl hydroxypolyoxyethylene (e.g., Adekarya Soap ER-20 manufactured by ADEKA Corporation), polyoxyethylene alkylpropenylphenyl ether (e.g., Aqualon RN-20 manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), and allyloxymethyl nonylphenoxyethyl hydroxypolyoxyethylene (e.g., Adekarya Soap NE-10 manufactured by ADEKA Corporation). 【0048】 The amount of emulsifier used is not limited, but is preferably 0.1 to 25 parts by mass, more preferably 0.5 to 20 parts by mass, and even more preferably 1.0 to 15 parts by mass, per 100 parts by mass of monomer component. Protective colloids may also be used alone or together with the emulsifier as needed. 【0049】 The polymerization initiators used in the emulsion polymerization described above are not limited to azo-based polymerization initiators such as azobisisobutyronitrile, 2,2-azobis(2-methylbutyronitrile), 2,2-azobis(2,4-dimethylvaleronitrile), 2,2-azobis(2-diaminopropane) hydrochloride, 4,4-azobis(4-cyanovaleric acid), and 2,2-azobis(2-methylpropionamidine); persulfates such as ammonium persulfate and potassium persulfate; and peroxide-based polymerization initiators such as hydrogen peroxide, benzoyl peroxide, parachlorobenzoyl peroxide, lauroyl peroxide, and ammonium peroxide. These polymerization initiators may be used individually or in combination of two or more types. 【0050】The amount of polymerization initiator used is preferably 0.01 to 3 parts by mass, more preferably 0.05 to 2 parts by mass, and even more preferably 0.1 to 1 part by mass, per 100 parts by mass of monomer components. If it is necessary to further increase the polymerization rate or decrease the reaction temperature, a reducing agent such as a soluble sulfite (e.g., sodium bisulfite) or ascorbic acid, or a metal compound that generates heavy metal ions in water, such as ferrous sulfate, can be combined with the polymerization initiator to form a redox initiator. 【0051】 The reaction temperature and reaction time for the emulsion polymerization described above can be appropriately set considering the weight-average molecular weight of the target resin, the proportion of monomer components, and the type of polymerization initiator. It is preferable to carry out the polymerization reaction under an inert gas atmosphere such as nitrogen gas. 【0052】 Specific polymerization methods in the emulsion polymerization described above include, for example, monomer drop-in polymerization, pre-emulsion drop-in polymerization, seed polymerization, and multi-stage polymerization. 【0053】 In the emulsion polymerization reaction system described above, appropriate amounts of additives such as chain transfer agents, pH buffers, and chelating agents may be added as needed. 【0054】 In this emulsion polymerization method, an emulsion is obtained in which (meth)acrylic resin (A) is dispersed in water as emulsion particles. 【0055】The emulsion is preferably adjusted to a pH of 7 to 10 at 25°C, and more preferably to 7 to 9. The pH of the emulsion can be adjusted by adding pH adjusting agents such as alkali metal compounds such as sodium hydroxide and potassium hydroxide; alkaline earth metal compounds such as calcium hydroxide and calcium carbonate; ammonia; and water-soluble organic amines such as dimethylaminoethanol, monomethylamine, dimethylamine, trimethylamine, monoethylamine, diethylamine, triethylamine, monopropylamine, dimethylpropylamine, monoethanolamine, diethanolamine, triethanolamine, ethylenediamine, and diethylenetriamine. These pH adjusting agents can be used individually or in combination of two or more. 【0056】 In this disclosure, when the image-receiving layer-forming composition contains (meth)acrylic resin (A), it is preferable to add it as an emulsion, that is, in the image-receiving layer-forming composition of this disclosure, it is preferable that the (meth)acrylic resin (A) is included as emulsion particles. 【0057】 The preferred embodiment of the composition and physical properties of the (meth)acrylic resin (A) constituting the emulsion particles is the same as described above. 【0058】 The shape of the emulsion particles is not particularly limited, but is usually spherical. 【0059】 The emulsion particles may be resin particles having a single-phase structure or resin particles having a multi-phase structure. The emulsion particles may contain one or more single-phase resin particles, one or more multi-phase resin particles (preferably a core-shell structure), or a mixture of single-phase and multi-phase resin particles (preferably a core-shell structure). 【0060】The average particle size of the emulsion particles is, for example, 30 to 500 nm, preferably 80 to 300 nm, more preferably 100 to 300 nm, and even more preferably 150 to 250 nm. By adjusting the average particle size of the emulsion particles to the above range, it becomes easier to incorporate emulsion particles at a high concentration while maintaining the viscosity of the image-receiving layer-forming composition within an appropriate range. The average particle size of the emulsion particles may be the cumulant average particle size measured by dynamic light scattering, as shown in the examples described later. 【0061】 The content of (meth)acrylic resin (A) is, for example, 10 to 80% by mass, preferably 20 to 65% by mass, and more preferably 25 to 55% by mass, of 100% by mass of the solid content (non-volatile content) of the image-receiving layer-forming composition. By adjusting the content of (meth)acrylic resin (A) to be above the lower limit, the transferability and wash / tumble-dry fastness can be further improved, and by adjusting it to be below the upper limit, the amount of particles (B) described later can be increased, resulting in a better balance between transferability, wash / tumble-dry fastness and ink absorbency. In this specification, solid content (non-volatile content) refers to the components excluding the solvent. 【0062】1-2. Particles The image-receiving layer-forming composition of this disclosure contains particles (hereinafter sometimes referred to as particles (B)) having an average particle diameter of 0.2 μm or more and satisfying at least one of the following requirements (1) to (3): (1) having no glass transition temperature (2) having a glass transition temperature of 50°C or higher (3) having a melting point of 80°C or higher. By including particles (B), an appropriate unevenness can be imparted to the surface of the resulting image-receiving layer, thereby increasing the absorption of ink. As a result, even when a large amount of white ink for base-forming is used to increase opacity, it is possible to prevent the base from extending beyond the printing target area, that is, by including particles (B), the white ink receptivity can be increased. Furthermore, as a result of the increased white ink absorption due to the inclusion of particles (B), it becomes possible to evenly impart the adhesive resin of the white ink to the printing surface, thereby suppressing transfer defects. Furthermore, by including particles (B), as described later, in transfer by cohesive breakdown along the surface direction of the image-receiving layer, irregularities are more easily formed on the surface of the image-receiving layer after cohesive breakdown, thereby further enhancing the matte properties of the resulting transfer print. 【0063】 The average particle size of particle (B) is preferably 0.2 to 20 μm, more preferably 1.0 to 15 μm, and even more preferably 3.0 to 12 μm. By adjusting the average particle size of particle (B) to be above the lower limit, the white ink acceptability and transferability can be improved, and by adjusting it to be below the upper limit, particle shedding can be suppressed. The average particle size of particle (B) can be measured by the method described in the examples. 【0064】 The shape of particle (B) is not particularly limited and may be spherical or have an irregular, non-spherical shape, but it is preferable that it be spherical. 【0065】 The particle (B) satisfies any of the requirements (1) to (3) above. This allows the particle shape to be maintained even after film formation, and an appropriate level of unevenness can be imparted to the surface of the resulting image-receiving layer. The particle (B) only needs to satisfy at least one of the requirements (1) to (3) above, but it is preferable that it satisfies (1). 【0066】The glass transition temperature (Tg) in requirement (2) above is preferably 60°C or higher, more preferably 80°C or higher, and there is no particular upper limit, but for example it is 200°C or lower. If particle (B) satisfies requirement (3), particle (B) may or may not have a Tg, and if it does, its Tg may be less than 50°C. 【0067】 The melting point in requirement (3) is preferably 90°C or higher, more preferably 100°C or higher, and there is no particular upper limit, but for example it is 200°C or lower. If particle (B) satisfies requirement (1) or (2), the melting point of particle (B) may be less than 80°C, or it may not have a melting point at all. 【0068】The glass transition temperature and melting point of particle (B) can be measured by differential scanning calorimetry (DSC) under the following measurement conditions. Measuring instrument: DSC 3500 (product name, manufactured by NETZSCH) Sample container: Sealed aluminum container Sample weight: 10 mg ± 2 mg Measurement method: Thermal analysis is performed in an N2 atmosphere according to the following temperature programs (1) to (5). (1) Increase temperature to 200°C at 10°C / min (2) Hold at 200°C for 5 minutes (3) Decrease temperature from 200°C to 20°C at 10°C / min (4) Hold at 20°C for 5 minutes (5) Increase temperature from 20°C to 350°C at 10°C / min After measurement, the glass transition temperature and melting point are analyzed from the DSC curve chart during the heating in (5) using the analysis software proteus Analysis. The value of the midpoint glass transition temperature is adopted as the glass transition temperature, and the top temperature of the endothermic peak is adopted as the melting point. Furthermore, if particle (B) is an organic particle or an organic-inorganic composite particle, it is determined that the particle does not have a glass transition point if a glass transition point cannot be confirmed under the above measurement conditions, or if the thermal decomposition start temperature of the particle is lower than the glass transition temperature. The thermal decomposition start temperature can be determined by using a thermal analyzer (TG-DTA-2000S, manufactured by MacScience) under the conditions of a sample (particle) amount of 10 mg, a heating rate of 10 °C / min (maximum temperature reached 500 °C), and an air flow rate of 20 ml / min. The intersection of the extension of the baseline (horizontal line) of the obtained TG curve (temperature-weight) and the tangent to the weight loss portion (downward-sloping shaded area) can be determined as the thermal decomposition start temperature. Also, if particle (B) is an inorganic particle, it is determined that it does not have a glass transition point because a glass transition does not occur. 【0069】 Particle (B) is preferably a water-insoluble particle, and more specifically, it is preferable that the amount that dissolves in 100 mL of water at 25°C is 1 g or less. 【0070】 The particle (B) has an average particle diameter of 0.2 μm or more, and as long as it satisfies at least one of the requirements (1) to (3) above, its material is not particularly limited and may be organic particle, inorganic particle, or organic-inorganic composite particle. 【0071】Examples of organic materials constituting the organic particles include (meth)acrylic resins, urethane resins, polyester resins, olefin resins, silicone resins, melamine resins, urea resins, styrene resins, polycarbonate resins, benzoguanamine resins, styrene-butadiene rubber, acrylonitrile-butadiene rubber, or composite materials of two or more of these. (Meth)acrylic resins, urethane resins, polyester resins, silicone resins, melamine resins, urea resins, styrene resins, polycarbonate resins, benzoguanamine resins, styrene-butadiene rubber, acrylonitrile-butadiene rubber, or composite materials of two or more of these are preferred. In particular, the organic materials constituting the organic particles preferably have a crosslinked structure, and (meth)acrylic resins having a crosslinked structure such as crosslinked polymethyl methacrylate are more preferred. 【0072】 Examples of inorganic materials constituting the inorganic particles include metals such as Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, B, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, Bi, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; oxides of the metals; hydroxides of the metals; carbides of the metals; nitrides of the metals; sulfides of the metals; carbonates of the metals; and composite materials of two or more of these. In particular, preferred inorganic materials constituting the inorganic particles include silica, metal oxides such as aluminum oxide, titanium oxide, and zirconium oxide, and metal carbonates such as magnesium carbonate, calcium carbonate, strontium carbonate, and barium carbonate. 【0073】 Examples of the aforementioned organic-inorganic composite particles include: particles in which inorganic particles are dispersed in an organic substance; particles in which the surface of inorganic particles is coated with an organic substance; polymerizable monomers having hydrolyzable silyl groups such as (meth)acryloxypropyltrimethoxysilane, or (co)polymers of monomers that are hydrolysis condensates of said monomers and other compounds having hydrolyzable silyl groups. 【0074】 The image-receiving layer-forming composition of this disclosure may contain one or more particles (B). 【0075】 The content of particles (B) is, for example, 20 to 80% by mass, preferably 30 to 65% by mass, and more preferably 35 to 55% by mass, of 100% by mass of the solid content (non-volatile content) of the image-receiving layer-forming composition. By adjusting the content of particles (B) to be above the lower limit, the white ink receptivity and transferability are further improved, and by adjusting it to be below the upper limit, the amount of (meth)acrylic resin (A) can be increased, resulting in a better balance between transferability, wash / tumble-dry fastness and white ink receptivity. Furthermore, the content of particles (B) is, for example, 20 to 300 parts by mass, preferably 50 to 230 parts by mass, and more preferably 70 to 180 parts by mass, per 100 parts by mass of (meth)acrylic resin (A). 【0076】 1-3. Coagulant The image-receiving layer-forming composition of this disclosure contains a coagulant (hereinafter sometimes referred to as coagulant (C)). The inclusion of coagulant (C) suppresses the bleeding of color ink for forming an image, that is, improves ink receptivity. 【0077】 The coagulant (C) is preferably a component that coagulates pigments and other components contained in the color ink. Specifically, the coagulant (C) is preferably a cationic compound, and more preferably a water-soluble cationic compound. 【0078】 Examples of the cationic compound include metal salts and cationic polymers, with metal salts being particularly preferred. The image-receiving layer-forming composition of this disclosure may contain one or more flocculants (C). 【0079】The metal salt is preferably a polyvalent metal salt composed of a divalent or higher metal ion and an anion. Examples of metals that constitute the divalent or higher metal ion include metals of Group 2 of the periodic table such as magnesium, calcium, strontium, and barium; and transition metals (preferably transition metals of the fourth period) such as titanium, chromium, copper, and zinc. Among these, metals of Group 2 of the periodic table are preferred, and calcium is more preferred, in terms of their excellent cohesive properties for pigments and the like. Examples of the anion include halide ions such as chloride ions, bromide ions, and iodide ions, as well as nitrate ions, sulfate ions, acetate ions, carbonate ions, and hydroxide ions. Among these, chloride ions, nitrate ions, and sulfate ions are preferred, and chloride ions and nitrate ions are more preferred. Specific examples of the polyvalent metal salt include metal salts of Group 2 of the periodic table such as calcium salts (calcium chloride, calcium nitrate, calcium acetate, etc.), magnesium salts (magnesium chloride, magnesium acetate, magnesium sulfate, etc.), and barium salts (barium chloride, etc.); and transition metal salts such as zinc salts (zinc chloride, zinc sulfate, etc.) and copper salts (copper nitrate, etc.). 【0080】 The cationic polymer is preferably a water-soluble polymer having a cationic group. Examples of cationic groups in a cationic polymer include amino groups, ammonium groups, amide groups, imino groups, hydrazino groups, and -NHCONH2 groups. Examples of cationic polymers include polyallylamine, polyvinylamine, polyethyleneimine, and polydiallyldimethylammonium chloride. 【0081】 The content of the flocculant (C) is, for example, 0.1 to 20% by mass, preferably 0.5 to 10% by mass, and more preferably 1.0 to 5% by mass, based on 100% by mass of the solid content (non-volatile content) of the image-receiving layer-forming composition. By adjusting the content of the flocculant (C) to be above the lower limit, the color ink receptivity is further improved, and by adjusting it to be below the upper limit, the decrease in the water resistance of the resulting transfer print can be suppressed. The content of the flocculant (C) is, for example, 0.1 to 50 parts by mass, preferably 1 to 30 parts by mass, and more preferably 3 to 15 parts by mass, based on 100 parts by mass of the (meth)acrylic resin (A). 【0082】 The total content of the (meth)acrylic resin (A), particles (B), and flocculant (C) is, for example, 50% by mass or more, preferably 70% by mass or more, and more preferably 80% by mass or more, based on 100% by mass of the solid content (non-volatile content) of the image-receiving layer-forming composition. 【0083】 1-4. Waxes The image-receiving layer-forming composition of this disclosure may contain various waxes, to the extent that the objectives of this disclosure are not hindered. By including waxes, the surface free energy of the image-receiving layer can be adjusted to lower the wettability of the ink to the image-receiving layer, and the bleeding of the ink applied to the image-receiving layer can be further suppressed. Furthermore, including waxes is preferable not only because it enables the hot peel described later, but also because it allows for easy cohesive breakdown of the image-receiving layer during the hot peel, as described later, and the matte quality of the resulting image is enhanced. 【0084】 The waxes may be synthetic or natural waxes. Examples include hydrocarbon waxes such as paraffin wax and polyolefin wax (e.g., polyethylene wax, polypropylene wax, polyethylene / polypropylene wax); fatty acid waxes such as higher fatty acids; fatty acid amide waxes such as fatty acid amides and bis-fatty acid amides; fatty acid ester waxes such as lower alcohol esters of fatty acids, polyhydric alcohol esters of fatty acids such as glycerides, polyglycol esters of fatty acids, and aliphatic alcohol esters of fatty acids; and modified versions thereof. The image-receiving layer-forming composition of this disclosure may contain one or more waxes. 【0085】 Examples of modified materials include known modified materials. For example, modified paraffin waxes include those obtained by modifying the properties of paraffin wax as a base material through oxidation, chlorination, adjustment of crystal structure, introduction of functional groups, or other chemical or physical treatments. Modified polyolefin waxes include those obtained by introducing polar or reactive groups by chemical modifications such as oxidation, maleic anhydride grafting, acrylic acid grafting, esterification, amidation, copolymerization, or terminal functionalization, using polyolefin wax as a base material. 【0086】 Among the waxes, hydrocarbon waxes and / or modified versions thereof are preferred, at least one selected from paraffin wax, polyolefin wax, and their modified versions is more preferred, and at least one selected from paraffin wax, polyethylene wax, and their modified versions is even more preferred. 【0087】 The melting point of the waxes is preferably 40°C or higher, and more preferably 40°C or higher and less than 80°C. The melting point of the waxes is also preferably 45 to 150°C, and more preferably 55 to 140°C. 【0088】 The waxes are preferably added as an emulsion, that is, the waxes are preferably in the form of emulsion particles. 【0089】 The content of the waxes is, for example, 0 to 30% by mass, preferably 5 to 20% by mass, of 100% by mass of the solid content (non-volatile content) of the image-receiving layer-forming composition. The content of the waxes is, for example, 0 to 100 parts by mass, preferably 30 to 80 parts by mass, per 100 parts by mass of (meth)acrylic resin (A). 【0090】 1-5. Surfactants The image-receiving layer-forming composition of this disclosure may further contain a surfactant. The use of a surfactant enhances the wettability of the image-receiving layer-forming composition to the substrate. 【0091】As the surfactants mentioned above, it is preferable to use, for example, acetylene glycol-based surfactants, silicone-based surfactants, fluorine-based surfactants, etc. As the acetylene glycol-based surfactants, commercially available products may be used, specifically the Surfinol series (manufactured by Evonik), Olfin series (manufactured by Nisshin Chemical Industry Co., Ltd.), Acetyleneol series (manufactured by Kawaken Fine Chemical Co., Ltd.), etc. As the silicone-based surfactants, polyether-modified silicone-based surfactants are preferably used. As the silicone-based surfactants, commercially available products may be used, specifically the Silface series (manufactured by Nisshin Chemical Industry Co., Ltd.), KF series (manufactured by Nisshin Chemical Industry Co., Ltd.), BYK-345, 347, 348, 349, 3450, 3451, 3455, 3480 (all manufactured by BYK), etc. Examples of the fluorinated surfactants include perfluoroalkyl sulfonic acid compounds, perfluoroalkyl carboxylic acid compounds, perfluoroalkyl phosphate ester compounds, perfluoroalkyl ethylene oxide adducts, and polyoxyalkylene ether polymer compounds having perfluoroalkyl ether groups in their side chains. Commercially available products may be used as the fluorinated surfactants, specifically the Surflon series (manufactured by AGC Seikamika Co., Ltd.) and the Megafac F series (manufactured by DIC Corporation). These surfactants may be used individually or in combination of two or more. 【0092】 The surfactants mentioned above are preferably acetylene glycol-based surfactants and silicone-based surfactants, more preferably silicone-based surfactants, and even more preferably polyether-modified silicone-based surfactants. 【0093】 The amount of the surfactant is, for example, 0 to 8% by mass with respect to 100% by mass of the solid content (non-volatile content) of the image-receiving layer-forming composition, but from the viewpoint of improving wettability to the substrate, it is preferably 0.1 to 8% by mass, more preferably 0.5 to 5% by mass, and even more preferably 1.0 to 3% by mass. 【0094】Furthermore, using two or more of the above-mentioned surfactants is preferable because it makes it easier to adjust the wettability of the image-receiving layer-forming composition to the substrate. In particular, it is preferable to use a silicone-based surfactant and an acetylene glycol-based surfactant in combination, and more preferably to use a polyether-modified silicone-based surfactant and an acetylene glycol-based surfactant in combination. By using these in combination, the wettability of the image-receiving layer-forming composition to the substrate is further enhanced. 【0095】 When using a silicone-based surfactant and an acetylene glycol-based surfactant in combination, the mass ratio (silicone-based surfactant / acetylene glycol-based surfactant) is preferably 0.1 to 5, and more preferably 0.5 to 2. In particular, it is preferable to adjust the mass ratio of the polyether-modified silicone-based surfactant to the acetylene glycol-based surfactant (polyether-modified silicone-based surfactant / acetylene glycol-based surfactant) to the above range. 【0096】 1-6. Solvent The image-receiving layer-forming composition of this disclosure preferably further contains a solvent. The solvent acts as a diluent to adjust the viscosity of the image-receiving layer-forming composition and improve its handling properties, such as coating properties. The solvent content in the image-receiving layer-forming composition can be set according to the desired viscosity of the image-receiving layer-forming composition and is not particularly limited, but is, for example, 40 to 95% by mass, preferably 50 to 85% by mass, and more preferably 55 to 75% by mass. 【0097】 As the solvent, an aqueous solvent is preferred from the viewpoint of reducing environmental impact. An aqueous solvent is a solvent whose main component is water, and the water content in the solvent is, for example, 50% by mass or more, preferably 70% by mass or more, more preferably 85% by mass or more, and may be 100% by mass. 【0098】The aqueous solvent may contain a water-soluble organic solvent along with water. A water-soluble organic solvent is an organic solvent that dissolves in water at a concentration of 0.01% by mass or more at 25°C and 1 atmosphere. By including a water-soluble organic solvent in the image-receiving layer-forming composition, the compatibility of the (meth)acrylic resin (A) is improved, and the film-forming properties can be enhanced. The water-soluble organic solvent may be used alone or in combination of two or more types. The content of the water-soluble organic solvent is preferably 1 to 15 parts by mass, and more preferably 2 to 10 parts by mass, per 100 parts by mass of water contained in the image-receiving layer-forming composition. 【0099】 Examples of water-soluble organic solvents include lower alcohols such as methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, and tert-butyl alcohol (preferably C 1-4 Alcohols; Glycols such as propylene glycol, 1,3-propanediol, dipropylene glycol, tripropylene glycol, ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol; Glycerin; Monoalkyl ethers of monoalkylene glycols (preferably mono-C) such as monoethylene glycol monomethyl ether, monoethylene glycol monoethyl ether, monoethylene glycol monopropyl ether, monoethylene glycol monoisopropyl ether, monoethylene glycol monobutyl ether, monoethylene glycol monoisobutyl ether, monopropylene glycol monomethyl ether, monopropylene glycol monoethyl ether, monopropylene glycol monopropyl ether, monopropylene glycol monoisopropyl ether, monopropylene glycol monobutyl ether, monopropylene glycol monoisobutyl ether, and monoalkyl ether. 2-3 Alkylene glycol mono C 1-4Alkyl ethers); monoalkyl ethers of dialkylene glycols such as diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monoisopropyl ether, diethylene glycol monobutyl ether, diethylene glycol monoisobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monoisopropyl ether, dipropylene glycol monobutyl ether, dipropylene glycol monoisobutyl ether, etc. (preferably diC 2-3 Alkylene glycol mono C 1-4 Alkyl ethers); Monoalkyl ethers of polyalkylene glycols (preferably polyC) such as monomethyl ether of polyethylene glycol, monoethyl ether of polyethylene glycol, monopropyl ether of polyethylene glycol, monoisopropyl ether of polyethylene glycol, monobutyl ether of polyethylene glycol, monoisobutyl ether of polyethylene glycol, monomethyl ether of polypropylene glycol, monoethyl ether of polypropylene glycol, monopropyl ether of polypropylene glycol, monoisopropyl ether of polypropylene glycol, monobutyl ether of polypropylene glycol, monoisobutyl ether of polypropylene glycol, etc. 2-3 Alkylene glycol mono C 1-4 Examples include alkyl ethers; heterocyclic compounds such as 2-pyrrolidone and N-methyl-2-pyrrolidone; ketones such as acetone and methyl ethyl ketone; and so on. The number of moles of alkylene oxide added to the monoalkyl ether of the polyalkylene glycol is preferably 2 to 10, and more preferably 2 to 4. 【0100】In particular, water-soluble organic solvents having hydrophobic groups (e.g., alkyl groups) and hydroxyl groups are preferred, and monoalkyl ethers of dialkylene glycol and / or monoalkyl ethers of polyalkylene glycol (number of alkylene oxide addition moles = 2 to 10, preferably 2 to 4) are more preferred, and diC 2-3 Alkylene glycol mono C 1-4 Alkyl ethers and / or polycarbonates 2-3 Alkylene glycol mono C 1-4 Alkyl ethers (number of alkylene oxide addition moles = 2 to 10, preferably 2 to 4) are more preferred, and at least one selected from the group consisting of diethylene glycol monoisopropyl ether, diethylene glycol monobutyl ether, diethylene glycol monoisobutyl ether, triethylene glycol monobutyl ether, and tripropylene glycol monomethyl ether is even more preferred. 【0101】 1-7. Other Resins The image-receiving layer-forming composition of this disclosure may contain resins other than those described above (hereinafter referred to as "other resins"), to the extent that the purpose of this disclosure is not hindered. Examples of other resins include vinyl resins, olefin resins, urethane resins, polyester resins, fluororesins, silicone resins, epoxy resins, phenoxy resins, phenolic resins, xylene resins, and the like, in addition to the components described above. 【0102】 The content of the other resins is, for example, 30 parts by mass or less, preferably 10 parts by mass or less, and may be 0 parts by mass, per 100 parts by mass of (meth)acrylic resin (A). 【0103】Furthermore, when using a transfer substrate that does not contain a release layer, release agents such as the aforementioned waxes, silicone resins, silicone oils, and fluororesins may be added to the composition for forming the image-receiving layer in order to improve the peelability of the interface between the substrate layer and the image-receiving layer and to exhibit transferability. However, the image-receiving layer forming composition of this disclosure can improve transferability even if it substantially does not contain the above-mentioned release agents (for example, even if it contains 3% by mass or less, preferably 1% by mass or less, and more preferably 0% by mass, of 100% by mass of the solid content (non-volatile content) of the image-receiving layer forming composition). 【0104】 1-8. Other Additives The image-receiving layer-forming compositions of this disclosure may contain additives other than those described above, to the extent that the purpose of this disclosure is not hindered. For example, one or more additives such as pH adjusters, dispersants, ultraviolet absorbers, ultraviolet stabilizers, thickeners, wetting agents, plasticizers, stabilizers, defoamers, antioxidants, crosslinking agents, crosslinking accelerators, preservatives, chain transfer agents, and chelating agents may be included in appropriate amounts. 【0105】 1-9. Method for Manufacturing the Image-Receiving Layer Forming Composition The method for manufacturing the image-receiving layer forming composition of this disclosure is not particularly limited, but for example, it can be manufactured by mixing (meth)acrylic resin (A), particles (B), a flocculant (C), and waxes, surfactants, solvents, other resins, and other additives as needed. 【0106】 As described above, in the image-receiving layer-forming composition of this disclosure, the (meth)acrylic resin (A) is preferably added in the form of an emulsion. 【0107】 From the viewpoint of handling, the content of emulsion particles in the emulsion is preferably 10 to 80% by mass, more preferably 20 to 70% by mass, and even more preferably 30 to 60% by mass. The content of emulsion particles can be determined by the non-volatile content (solid content) of the emulsion, and therefore, it is preferable to adjust the solid content of the emulsion to the above range. 【0108】The solvent used as the dispersion medium for the emulsion particles is preferably water or a mixed solvent of water and a water-soluble organic solvent. Examples of the water-soluble organic solvent include those described in section "1-6. Solvent". The solvent used as the dispersion medium for the emulsion particles may be derived from, for example, the solvent used in the production of the resin, or from a solvent separately added to the produced resin or a commercially available resin. A commercially available emulsion can also be used. 【0109】 When mixing (meth)acrylic resin (A) (preferably in emulsion form), particles (B), a flocculant (C), and waxes, surfactants, solvents, other resins, and other additives as needed, the particles (B), flocculant (C), waxes, surfactants, other resins, and other additives may be used as is, or added as a solution diluted or dispersed with a solvent or the like. 【0110】 The method and order in which the above components are mixed are not particularly limited. After mixing, centrifugation or filtration can be performed as needed. 【0111】 The image-receiving layer-forming composition of this disclosure is suitably used as a composition for forming an image-receiving layer on a transfer substrate used in transfer printing, and is particularly suitably used as a composition for forming an image-receiving layer on a transfer substrate used in thermal transfer printing. Furthermore, since the transfer print obtained using the image-receiving layer-forming composition has improved wet friction fastness and wash / tumble dry fastness, the image-receiving layer-forming composition of this disclosure is suitably used as a composition for forming an image-receiving layer on a transfer substrate used in transfer printing on fabrics. 【0112】A method for forming an image-receiving layer on a transfer substrate using the aforementioned image-receiving layer-forming composition is also included in this disclosure. The image-receiving layer can be formed, for example, by applying (preferably coating) the image-receiving layer-forming composition. The application of the image-receiving layer-forming composition will be described in detail in the section "2-4. Method for Manufacturing a Transfer Substrate" below. A method for performing thermal transfer using a transfer substrate equipped with an image-receiving layer formed from the aforementioned image-receiving layer-forming composition is also included in this disclosure. The method for performing thermal transfer will be described in detail in the section "3. Transfer Printing" below. A method for transfer printing onto fabric using a transfer substrate equipped with an image-receiving layer formed from the aforementioned image-receiving layer-forming composition is also included in this disclosure. The method for transfer printing onto fabric will be described in detail in the section "3. Transfer Printing" below. 【0113】 2. Transfer Substrate The transfer substrate of this disclosure comprises a substrate layer and an image receiving layer, wherein the image receiving layer comprises a (meth)acrylic resin, particles with an average particle diameter of 0.2 μm or more, and a flocculant, and the particles satisfy at least one of the following requirements (1) to (3): (1) It does not have a glass transition temperature (2) Its glass transition temperature is 50°C or higher (3) Its melting point is 80°C or higher 【0114】 By using the transfer substrate of this disclosure, it is possible to improve the receptivity of the color ink that forms the image and the white ink that forms the background, and to improve the transferability during transfer printing. Preferably, it is also possible to improve the wet friction fastness and / or wash and tumble dry fastness of the resulting transfer print. Furthermore, since the transfer substrate of this disclosure can be given good transferability to the resulting transfer substrate simply by providing the above-mentioned specific image receiving layer on the substrate layer, there is no need to provide other processing layers such as a release layer, which is also preferable from the viewpoint of cost reduction. 【0115】 Figure 1 is a schematic cross-sectional view showing an example of a transfer substrate of the present disclosure. The transfer substrate 100 includes a base layer 1 and an image receiving layer 2 laminated on the base layer 1. 【0116】The transfer substrate is preferably in the form of a sheet or film to facilitate its use. The thickness of the transfer substrate is not particularly limited, but is, for example, 10 to 500 μm, and preferably 30 to 250 μm. 【0117】 2-1. Substrate Layer The substrate layer is the base material layer of the transfer substrate. The material of the substrate layer is not particularly limited, but a material that does not shrink easily due to the heat treatment applied before transfer printing is preferred. Specifically, examples of materials for the substrate layer include metal, wood, plastic, or paper. Examples of metals include aluminum and copper, with aluminum being preferred from a cost viewpoint. Examples of plastics include polyolefin resin, polyester resin, polyamide resin, and polycarbonate resin, with polyester resin being preferred from a cost viewpoint, and aromatic polyesters such as polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate being more preferred. Examples of paper include plain paper, fine paper, and coated paper. 【0118】 In particular, the material of the base layer is preferably plastic or paper from the viewpoint of cost, and more preferably polyester resin from the viewpoint of good heat resistance, even more preferably aromatic polyester, and especially preferably polyethylene terephthalate. 【0119】 The substrate layer may have a single-layer structure or a laminated structure. 【0120】 The thickness of the substrate layer is not particularly limited, but is, for example, 10 to 500 μm, and preferably 30 to 200 μm. 【0121】 2-2. Image-receiving layer The image-receiving layer is a layer provided to absorb the ink printed on the transfer substrate, and is also called the "ink-receiving layer". 【0122】The (meth)acrylic resin contained in the image-receiving layer is a binder resin in the image-receiving layer. The physical properties and composition of the (meth)acrylic resin are the same as those of the resin described as (meth)acrylic resin (A) contained in the image-receiving layer forming composition, including its preferred embodiment. However, in the image-receiving layer, the shape of the resin may be particulate or continuous, but a continuous structure is preferred. 【0123】 The content of the (meth)acrylic resin is, for example, 10 to 80% by mass, preferably 20 to 65% by mass, and more preferably 25 to 55% by mass, of 100% by mass of the image receiving layer. By adjusting the content of the (meth)acrylic resin to be above the lower limit, transferability and wash / tumble-dry fastness can be further improved, and by adjusting it to be below the upper limit, the amount of particles can be increased, resulting in a better balance between transferability, wash / tumble-dry fastness and ink absorbency. 【0124】 The particles included in the image-receiving layer, having an average particle diameter of 0.2 μm or more and satisfying at least one of the above requirements (1) to (3), are the same as the particles described as particles (B) included in the image-receiving layer forming composition, including their preferred embodiments. 【0125】 The particle content is, for example, 20 to 80% by mass, preferably 30 to 65% by mass, and more preferably 35 to 55% by mass, of 100% by mass of the image receiving layer. By adjusting the particle content to be above the lower limit, the white ink receptivity and transferability are further improved, and by adjusting it to be below the upper limit, the amount of (meth)acrylic resin blended can be increased, resulting in a better balance between transferability, wash / tumble dry fastness and white ink receptivity. The particle content is, for example, 20 to 300 parts by mass, preferably 50 to 250 parts by mass, and more preferably 70 to 180 parts by mass, per 100 parts by mass of the (meth)acrylic resin. 【0126】 The coagulant included in the image-receiving layer is the same as the coagulant (C) described as included in the image-receiving layer forming composition, including its preferred embodiment. 【0127】The content of the flocculant is, for example, 0.1 to 20% by mass, preferably 0.5 to 10% by mass, and more preferably 1.0 to 5% by mass, based on 100% by mass of the image receiving layer. By adjusting the content of the flocculant to be above the lower limit, the color ink receptivity is further improved, and by adjusting it to be below the upper limit, the decrease in the water resistance of the resulting transfer print can be suppressed. Furthermore, the content of the flocculant is, for example, 0.1 to 50 parts by mass, preferably 1 to 30 parts by mass, and more preferably 3 to 15 parts by mass, based on 100 parts by mass of the (meth)acrylic resin. 【0128】 The total content of the (meth)acrylic resin, the particles, and the flocculant is, for example, 50% by mass or more, preferably 70% by mass or more, and more preferably 80% by mass or more, based on 100% by mass of the image receiving layer. 【0129】 The image-receiving layer may further contain waxes. The waxes are the same as those described as waxes included in the image-receiving layer forming composition, including their preferred embodiments. The content of the waxes is, for example, 0 to 30% by mass, preferably 5 to 20% by mass, of 100% by mass of the image-receiving layer. The content of the waxes is, for example, 0 to 100 parts by mass, preferably 30 to 80 parts by mass, per 100 parts by mass of the (meth)acrylic resin. 【0130】 The image-receiving layer may further contain a surfactant. The surfactant is the same as that described as a surfactant included in the image-receiving layer forming composition, including its preferred embodiment. The content of the surfactant is, for example, 0 to 8% by mass, preferably 0.1 to 8% by mass, more preferably 0.5 to 5% by mass, and even more preferably 1.0 to 3% by mass, based on 100% by mass of the image-receiving layer. 【0131】 The image-receiving layer may contain resins other than the above-mentioned components, to the extent that the purpose of this disclosure is not hindered. Examples of such resins include those exemplified as other resins included in the image-receiving layer forming composition. The content of resins other than the above-mentioned components is, for example, 30 parts by mass or less, preferably 10 parts by mass or less, and may be 0 parts by mass, per 100 parts by mass of the (meth)acrylic resin. 【0132】 In addition, in transfer substrates that do not contain a release layer, release agents such as the aforementioned waxes, silicone resins, silicone oils, and fluororesins may be added to the image-receiving layer to improve the peelability between the substrate layer and the image-receiving layer and to exhibit transferability. However, the image-receiving layer of this disclosure can improve transferability even if it substantially does not contain such release agents (for example, even if it contains 3% by mass or less, preferably 1% by mass or less, and more preferably 0% by mass, of 100% by mass of the image-receiving layer). 【0133】 The image-receiving layer may contain additives other than those described above, to the extent that the purpose of this disclosure is not hindered. Examples of such additives include those listed as other additives included in the image-receiving layer-forming composition. 【0134】 The thickness of the image-receiving layer is preferably 30 nm to 30 μm, and more preferably 100 nm to 20 μm. By adjusting the thickness of the image-receiving layer to be above the lower limit, the above-mentioned effects of the transfer substrate of this disclosure tend to be more easily exhibited, and by adjusting it to be below the upper limit, manufacturing costs can be reduced. Furthermore, from the viewpoint of facilitating transfer by cohesive breakdown along the surface direction of the image-receiving layer, as described later, the thickness of the image-receiving layer is preferably 500 nm to 30 μm, and more preferably 1 μm to 20 μm. 【0135】 The surface free energy of the image receiving layer is 10 to 40 mJ / m 2 Preferably, 20 to 35 mJ / m 2 This is more preferable. By adjusting the surface free energy of the image receiving layer to the above range, the wettability of the ink to the image receiving layer tends to improve. The surface free energy of the image receiving layer can be calculated by the following method. Water, diiodomethane, and 1-bromonaphthalene are used as measurement liquids, and the static contact angle of each liquid with respect to the surface of the image receiving layer is determined using a contact angle meter DMo-602 manufactured by Kyowa Interface Chemical Co., Ltd. The surface free energy can be calculated by analyzing the contact angles obtained for each liquid using the Kitazaki-Hata equation. 【0136】2-3. Release Layer The transfer substrate of this disclosure may further include a release layer. Preferably, the release layer is directly laminated on at least one surface of the substrate layer, that is, preferably, the release layer is laminated between the substrate layer and the image receiving layer and / or on the opposite side of the surface on which the image receiving layer is laminated in the substrate layer. By having a release layer on the opposite side of the surface on which the image receiving layer is laminated in the substrate layer, blocking between transfer substrates can be suppressed when the transfer substrates are stacked. In addition, by providing a release layer between the substrate layer and the image receiving layer, peeling at the interface between the substrate layer and the image receiving layer is made easier, making transfer to the transfer medium easier, and even when hot peeling is performed as described later, peeling at the interface between the substrate layer and the image receiving layer is possible without impairing the transferability, thus shortening the time until the transfer substrate is peeled off. 【0137】 When a release layer is present between the substrate layer and the image-receiving layer, the surface of the release layer on the image-receiving layer side may be smooth or it may have an uneven shape. If the surface of the release layer has an uneven shape, when peeling occurs at the interface between the image-receiving layer and the release layer during transfer printing, the unevenness originating from the release layer is transferred to the image surface of the resulting transfer print (more specifically, the surface of the image-receiving layer in the transfer print), thereby imparting a matte finish (non-glossy effect) to the image in the transfer print. 【0138】 Furthermore, in this disclosure, because a specific image-receiving layer is present, even when the image-receiving layer is laminated on the substrate layer without a release layer, it is preferable that the image-receiving layer can be peeled off at the interface between the substrate layer and the image-receiving layer when the transfer substrate is peeled off, as shown in Figure 2 below, or that the image-receiving layer can be cohesively destroyed along the planar direction when the transfer substrate is peeled off, as shown in Figure 3 below, thereby preventing image residue from remaining on the transfer substrate after peeling (i.e., improving transferability). 【0139】 Preferably, the release layer is a layer obtained by coating at least one surface of the base layer with a release agent. Examples of the release agent include polyethylene wax-based release agents, silicone-based release agents, and fluorine-based release agents. 【0140】If the transfer substrate of this disclosure has a release layer, the thickness of the release layer is not particularly limited, but from the viewpoint of further improving transferability, it is preferably 10 nm or more, more preferably 30 nm or more, and from the viewpoint of suppressing bulkiness when the transfer substrate is in the form of a roll, it is preferably 2 μm or less. 【0141】 The transfer substrate of this disclosure is suitably used for transfer printing, and particularly suitably used for thermal transfer printing. Furthermore, since the transfer print obtained using the transfer substrate has improved wet friction fastness and wash / tumble dry fastness, the transfer substrate of this disclosure is suitably used for transfer printing on fabrics. 【0142】 The methods for performing transfer printing using the aforementioned transfer substrate, the method for performing heat transfer using the aforementioned transfer substrate, and the method for performing transfer printing onto fabric using the aforementioned transfer substrate will be described in detail in the "3. Transfer Substrate" section below. 【0143】 2-4. Method for Manufacturing a Transfer Substrate The transfer substrate of this disclosure can be manufactured, for example, by applying the above-mentioned image-receiving layer-forming composition onto a substrate layer. 【0144】 The method for applying the image-receiving layer-forming composition is not limited, but it can be applied by known coating methods such as dip coating, air knife coating, curtain coating, spin coating, roller coating, bar coating, and spray coating. The image-receiving layer-forming composition may also be applied by gravure printing, inkjet printing, or jet dispenser printing. In particular, application by digital printing is preferred, application by inkjet printing or jet dispenser printing is more preferred, and application by inkjet printing is even more preferred. 【0145】 It is preferable to apply the image-receiving layer-forming composition and then dry it. The drying may be done naturally, but from the viewpoint of improving productivity, heat drying is preferred. The heat drying temperature is, for example, 50°C or higher, preferably 80 to 180°C, and more preferably 100 to 130°C. The heating time can be adjusted as appropriate depending on the heating temperature, but is preferably 0.5 to 30 minutes, and more preferably 1 to 20 minutes. 【0146】 3. Transfer Printing A transfer medium is manufactured by applying ink to the image-receiving layer of the transfer substrate of this disclosure and printing a desired image portion. The desired image can be transferred to the transfer medium by bringing the image-forming surface of the transfer medium into contact with the transfer medium and then peeling off the transfer substrate. 【0147】 3-1. Transfer Medium As described above, the transfer medium used in transfer printing is obtained by applying ink to the image-receiving layer of a transfer substrate and printing the desired image portion. In particular, since the transfer substrate of this disclosure has excellent color ink and white ink receptivity, in order to maximize this effect and to further enhance the robustness of the resulting transfer print, it is preferable to obtain a transfer medium obtained by applying color ink to the image-receiving layer of the transfer substrate to print the desired image portion, then applying white ink to the printed surface of the color ink to print the base portion, and then applying adhesive resin to the printed surface of the white ink to form an adhesive portion. That is, as the transfer medium, it is preferable to use a transfer medium in which the image portion formed from color ink, the base portion formed from white ink, and the adhesive portion containing adhesive resin are formed in this order on the image-receiving layer forming surface of the aforementioned transfer substrate. 【0148】 The image receiving layer absorbs the ink applied to it. Therefore, a part of the image portion may be formed in the image receiving layer, the entire image portion may be formed (however, the background portion may be formed outside the image receiving layer), the entire image portion and a part of the background portion may be formed, the entire image portion and the entire background portion may be formed (however, the adhesive portion may be formed outside the image receiving layer), or the entire image portion, the entire background portion and a part of the adhesive portion may be formed. 【0149】Figure 2 includes a schematic cross-sectional view showing an example of a transfer medium. The transfer medium 200 comprises a transfer substrate 100, an image portion 3 formed on the image receiving layer 2 side of the transfer substrate 100, a base portion 4 formed on the image portion 3, and an adhesive portion 5 formed on the base portion 4. The adhesive portion 5 may be formed only in the areas where the image portion 3 and the base portion 4 are formed, as shown in Figure 2, or it may be formed not only in the areas where the image portion 3 and the base portion 4 are formed but also around them. By forming the adhesive portion 5 around the image portion 3 and the base portion 4, the durability (preferably wash and tumble dry fastness) of the resulting transfer print is further improved. 【0150】 3-1-1. Image Section The image section is a component that forms an image such as the desired characters or patterns, and is formed by printing color ink. The printing method is not particularly limited, but a digital printing method such as inkjet printing or jet dispenser printing is preferred. 【0151】 The hue of the colored ink is not particularly limited and can be selected from black, white, and chromatic colors. Chromatic colors include the three primary colors of subtractive color mixing: magenta, yellow, and cyan, as well as colors of varying intensities such as light cyan, dark yellow, light magenta, and light black. Furthermore, one or more hues selected from red, blue, orange, green, and violet are also acceptable. 【0152】 The hue of the color ink can be controlled by the colorant. The colorant contained in the color ink is not particularly limited, but colorants used in ordinary inkjet inks can be used. The colorant may be a dye or a pigment, but from the viewpoint of further improving the fastness of the resulting transfer print, a pigment is preferred. Examples of the pigment include known organic pigments and inorganic pigments, which may be used individually or in combination of two or more types. In addition, if necessary, they may be used in combination with extender pigments. 【0153】Preferably, the pigment is dispersed and stabilized in the color ink with a dispersant. Examples of the dispersant include poly(meth)acrylic acid (salt) such as poly(meth)acrylic acid and poly(meth)acrylic acid salts; copolymers of (meth)acrylic acid (salt) with one or more of the monomer components other than (meth)acrylic acid (salt), such as alkyl (meth)acrylic acid esters, (meth)acrylamide, styrene, maleic acid, maleic anhydride, maleic acid esters, vinyl acetate; polyvinyl alcohol; and polyvinylpyrrolidone. The content of the dispersant is preferably 1 to 100 parts by mass, more preferably 2 to 50 parts by mass, and even more preferably 3 to 30 parts by mass, per 100 parts by mass of the colorant. 【0154】 The content of colorants in the solid content (non-volatile content) of the aforementioned color ink is preferably 1 to 80% by mass, and more preferably 10 to 60% by mass. It is also preferable to adjust the content of colorants in the image portion to within the above range. 【0155】 The aforementioned color ink may contain a resin. Preferably, the resin functions as a binder. 【0156】 The weight-average molecular weight (Mw) of the resin is preferably 50,000 or more, more preferably 200,000 or more, and even more preferably 400,000 or more, with an upper limit of preferably 5,000,000 or less. The glass transition temperature of the resin is preferably -50 to 10°C, more preferably -45 to 5°C, and even more preferably -40 to 3°C, from the viewpoint of further improving the texture of the resulting transfer print. The acid value of the resin is preferably 0 to 50 mgKOH / g, more preferably 2 to 40 mgKOH / g, and even more preferably 5 to 30 mgKOH / g. 【0157】When the resin is added to the color ink, it is preferable to add it as an emulsion; that is, in the color ink, it is preferable that the resin is included as emulsion particles. The shape of the emulsion particles is not particularly limited, but is usually spherical. The emulsion particles may be resin particles having a single-phase structure, or resin particles having a multi-phase structure (preferably a core-shell structure). The average particle diameter of the emulsion particles is, for example, 30 to 500 nm, preferably 80 to 300 nm, more preferably 100 to 300 nm, and even more preferably 150 to 250 nm. 【0158】 Examples of the resins include vinyl resins, (meth)acrylic resins, polyester resins, olefin resins, urethane resins, fluororesins, silicone resins, epoxy resins, phenoxy resins, phenolic resins, xylene resins, and the like. Among these, at least one selected from the group consisting of (meth)acrylic resins, polyester resins, and urethane resins is preferred, with (meth)acrylic resins being particularly preferred. 【0159】 The (meth)acrylic resin comprises structural units derived from low-Tg alkyl (meth)acrylate and C methacrylate. 1-5 It is preferable to include structural units derived from alkyl esters and / or styrene monomers (Aspect A), and it is more preferable to further include structural units derived from acid group-containing monomers in Aspect A (Aspect B). Furthermore, in Aspects A and B, it is also preferable to further include structural units derived from cyclic alkyl (meth)acrylate (Aspect C), or in Aspects A and B, it is also preferable to further include structural units derived from hydroxyl group-containing monomers (Aspect D), and in Aspects A and B, it is more preferable to further include structural units derived from cyclic alkyl (meth)acrylate and structural units derived from hydroxyl group-containing monomers (Aspect E). The low Tg alkyl (meth)acrylate, methacrylate C 1-5Alkyl esters, styrene monomers, acid group-containing monomers, cyclic alkyl (meth)acrylates, and hydroxyl group-containing monomers include low-Tg alkyl (meth)acrylates and C methacrylates that constitute (meth)acrylic resin (A). 1-5 The descriptions of alkyl esters, styrene monomers, acid group-containing monomers, cyclic alkyl (meth)acrylates, and hydroxyl group-containing monomers can be applied mutatis mutandis, including their preferred embodiments. 【0160】 Low Tg alkyl methacrylate and C methacrylate in 100% by mass of (meth)acrylic resin. 1-5 The total content of structural units derived from alkyl esters, styrene monomers, and acid group-containing monomers is preferably 60% by mass or more, more preferably 80% by mass or more, even more preferably 90% by mass or more, and may be 100% by mass. The content of structural units derived from low-Tg alkyl methacrylate in 100% by mass of (meth)acrylic resin may be adjusted as appropriate depending on the target Tg, but is preferably 20 to 95% by mass, more preferably 30 to 85% by mass, and even more preferably 40 to 70% by mass. C methacrylate 1-5 The total content of structural units derived from alkyl esters and styrene monomers is preferably 10 to 350 parts by mass, more preferably 25 to 200 parts by mass, and even more preferably 40 to 80 parts by mass, per 100 parts by mass of structural units derived from low-Tg alkyl (meth)acrylate. The content of structural units derived from acid group-containing monomers is low-Tg alkyl (meth)acrylate and C methacrylate. 1-5 The content of structural units derived from alkyl esters and styrene monomers is, for example, 0 to 8 parts by mass, preferably 0.5 to 5 parts by mass, and more preferably 1.0 to 3 parts by mass, per 100 parts by mass of the total structural units derived from alkyl esters and styrene monomers. The content of structural units derived from cyclic alkyl (meth)acrylates is low Tg alkyl (meth)acrylate and C methacrylate. 1-5The content of structural units derived from alkyl esters and styrene monomers is, for example, 0 to 15 parts by mass, preferably 1 to 10 parts by mass, and more preferably 2 to 8 parts by mass, per 100 parts by mass of the total structural units derived from alkyl esters and styrene monomers. The content of structural units derived from hydroxyl group-containing monomers is low-Tg alkyl (meth)acrylate and C methacrylate. 1-5 For every 100 parts by mass of the total structural units derived from alkyl esters and styrene monomers, the amount is, for example, 0 to 15 parts by mass, preferably 1 to 10 parts by mass, and more preferably 2 to 8 parts by mass. 【0161】 The resin content in the solids (non-volatile components) of the color ink is, for example, 20 to 99% by mass, preferably 30 to 90% by mass, and more preferably 40 to 85% by mass. It is also preferable to adjust the resin content in the image portion to within the above range. 【0162】 The aforementioned color ink preferably further contains a solvent. Organic solvents and aqueous solvents can be suitably used as the solvent, but from the viewpoint of reducing environmental impact, aqueous solvents are preferred. 【0163】 Examples of water-based solvents include water, or a mixed solvent of water and a water-soluble organic solvent. From the viewpoint of improving moisture retention and compatibility with resins, it is preferable that the water-based solvent contained in the color ink contains a water-soluble organic solvent along with water. Examples of water-soluble organic solvents contained in the color ink include the water-soluble organic solvents described in section "1-6. Solvents". In particular, it is preferable to use at least one water-soluble organic solvent selected from the water-soluble organic solvent having hydrophobic and hydroxyl groups as described in section "1-6. Solvents", propylene glycol, diethylene glycol, triethylene glycol, and glycerin, and it is even more preferable to use a water-soluble organic solvent having hydrophobic and hydroxyl groups as described in section "1-6. Solvents" in combination with at least one water-soluble organic solvent selected from propylene glycol, diethylene glycol, triethylene glycol, and glycerin. 【0164】 The content of the water-soluble organic solvent in the aqueous solvent is preferably 5 to 60% by mass, and more preferably 15 to 40% by mass. 【0165】The solvent content in the color ink can be set according to the viscosity of the desired color ink and is not particularly limited, but for example, it is 40 to 90% by mass, preferably 50 to 88% by mass, and more preferably 55 to 85% by mass. 【0166】 The color ink may further contain a crosslinking agent. Examples of the crosslinking agent include isocyanate compounds, epoxy compounds, melamine compounds, metal chelate compounds, aziridine compounds, mercapto compounds, oxazoline compounds, and the like, with oxazoline compounds being preferred. The crosslinking agent may be used alone or in combination of two or more. The content of the crosslinking agent is not particularly limited, but is, for example, 0 to 10 parts by mass, preferably 0.05 to 10 parts by mass, more preferably 0.1 to 8 parts by mass, and even more preferably 0.2 to 5 parts by mass, per 100 parts by mass of the resin. 【0167】 The color ink may further contain a surfactant. The surfactant that can be used in the color ink is the same as that described as a surfactant included in the image-receiving layer-forming composition, including its preferred embodiment. The surfactant content in the solid content (non-volatile content) of the color ink is, for example, 0.1 to 4% by mass, preferably 0.5 to 3% by mass, and more preferably 1 to 2.5% by mass. It is also preferable to adjust the surfactant content in the image portion to within the above range. 【0168】 The aforementioned color ink may contain other components besides those described above, to the extent that the purpose of this disclosure is not hindered. For example, it may contain appropriate amounts of additives such as leveling agents, UV absorbers, UV stabilizers, thickeners, wetting agents, plasticizers, stabilizers, defoamers, antioxidants, crosslinking accelerators, pH adjusters, and preservatives. 【0169】3-1-2. Background The background is the part that serves as the base for the image portion where the target image is formed, and is formed by printing white ink. The opacity of the background can enhance the color development of the image. The method of printing the white ink is not particularly limited, but it is preferably a digital printing method such as inkjet printing or printing using a jet dispenser. 【0170】 White ink preferably contains a white pigment as a colorant. As the white pigment, known white pigments can be used, and among them, titanium dioxide is preferred from the viewpoint of having a high refractive index and excellent opacity, and titanium dioxide with a rutile crystal structure is more preferred. 【0171】 In the case of white pigments, the average particle size is preferably 100 to 500 nm, more preferably 150 to 450 nm, and even more preferably 200 to 400 nm, from the viewpoint of superior opacity. 【0172】 Preferably, the white pigment is dispersed and stabilized in the white ink with a dispersant. Examples of the dispersant include those contained in colored inks. The amount of the dispersant is preferably 1 to 100 parts by mass, and more preferably 2 to 30 parts by mass, per 100 parts by mass of the white pigment. 【0173】 The content of white pigment in the solid content (non-volatile content) of the white ink is preferably 20 to 80% by mass, and more preferably 40 to 60% by mass. It is also preferable to adjust the content of white pigment in the base material to within the above range. 【0174】 The white ink may contain a resin. The description of the resin used in the color ink can be applied mutatis mutandis to the resin used in the white ink, including its preferred form. The resin content in the solids (non-volatile components) of the white ink is, for example, 20 to 80% by mass, preferably 40 to 60% by mass. It is also preferable to adjust the resin content in the base material to the above range. 【0175】The white ink preferably further contains a solvent. The description of solvents used for color inks, including preferred embodiments, can be applied mutatis mutandis to the solvent that can be used in the white ink. The solvent content in the white ink is not particularly limited and can be set according to the viscosity of the desired white ink, but for example, it is 40 to 90% by mass, preferably 50 to 88% by mass, and more preferably 55 to 85% by mass. 【0176】 The white ink may further contain a crosslinking agent. The description of the crosslinking agent used in the color ink can be applied mutatis mutandis to the crosslinking agent used in the white ink, including its preferred embodiment. The content of the crosslinking agent is not particularly limited, but is, for example, 0 to 10 parts by mass, preferably 0.1 to 8 parts by mass, and more preferably 0.5 to 5 parts by mass, per 100 parts by mass of the resin. 【0177】 The white ink may further contain a surfactant. The surfactants that can be used in the white ink are the same as those described as surfactants included in the image-receiving layer-forming composition, including their preferred embodiments. The surfactant content in the solid content (non-volatile content) of the white ink is, for example, 0.1 to 4% by mass, preferably 0.5 to 3% by mass, and more preferably 1 to 2.5% by mass. It is also preferable to adjust the surfactant content in the base layer to within the above range. 【0178】 The white ink may contain other components besides those described above, to the extent that the purpose of this disclosure is not hindered. For example, it may contain appropriate amounts of additives such as leveling agents, UV absorbers, UV stabilizers, thickeners, wetting agents, plasticizers, stabilizers, defoamers, antioxidants, crosslinking accelerators, pH adjusters, and preservatives. 【0179】3-1-3. Adhesive Section The adhesive section contains an adhesive resin and plays a role in bonding the image to the transfer medium during transfer printing. The adhesive section can be formed by applying the adhesive resin to the substrate using a known method, for example, by printing an adhesive ink containing the adhesive resin, or by coating with adhesive resin powder and heat treatment. From the viewpoint of improving the texture of the resulting transfer print, it is preferable to form the adhesive section by printing an adhesive ink containing the adhesive resin. The printing method in this case is not particularly limited, but it is preferable to use a digital printing method such as inkjet printing or jet dispenser printing. 【0180】 The glass transition temperature of the adhesive resin is preferably -50 to 35°C, more preferably -25 to 20°C, and even more preferably -10 to 10°C. The acid value of the adhesive resin is preferably 0 to 50 mg KOH / g, more preferably 2 to 40 mg KOH / g, and even more preferably 5 to 30 mg KOH / g. The weight-average molecular weight (Mw) of the adhesive resin is, for example, 5,000 to 700,000, preferably 20,000 to 650,000, and even more preferably 30,000 to 550,000. The molecular weight distribution of the adhesive resin is, for example, 3 to 20, preferably 4 to 12, more preferably 4 to 10, and even more preferably 5 to 8. The molecular weight distribution is expressed as the ratio (Mw / Mn) of the weight-average molecular weight (Mw) to the number-average molecular weight (Mn). 【0181】 Examples of the adhesive resin include vinyl resins, (meth)acrylic resins, polyester resins, olefin resins, urethane resins, fluororesins, silicone resins, epoxy resins, phenoxy resins, phenolic resins, xylene resins, and the like. Among these, at least one selected from the group consisting of (meth)acrylic resins, polyester resins, and urethane resins is preferred, with (meth)acrylic resins being more preferred. 【0182】 The (meth)acrylic resin comprises structural units derived from low-Tg alkyl (meth)acrylate and C methacrylate. 1-5It is preferable to include structural units derived from alkyl esters and / or styrene monomers (Aspect A), and it is more preferable to further include structural units derived from acid group-containing monomers in Aspect A (Aspect B). Furthermore, in Aspects A and B, it is also preferable to further include structural units derived from cyclic alkyl (meth)acrylate (Aspect C), or in Aspects A and B, it is also preferable to further include structural units derived from hydroxyl group-containing monomers (Aspect D), and in Aspects A and B, it is more preferable to further include structural units derived from cyclic alkyl (meth)acrylate and structural units derived from hydroxyl group-containing monomers (Aspect E). The low Tg alkyl (meth)acrylate, methacrylate C 1-5 Alkyl esters, styrene monomers, acid group-containing monomers, cyclic alkyl (meth)acrylates, and hydroxyl group-containing monomers include low-Tg alkyl (meth)acrylates and C methacrylates that constitute (meth)acrylic resin (A). 1-5 The descriptions of alkyl esters, styrene monomers, acid group-containing monomers, cyclic alkyl (meth)acrylates, and hydroxyl group-containing monomers can be applied mutatis mutandis, including their preferred embodiments. 【0183】 Low Tg alkyl methacrylate and C methacrylate in 100% by mass of (meth)acrylic resin. 1-5 The total content of structural units derived from alkyl esters, styrene monomers, and acid group-containing monomers is preferably 60% by mass or more, more preferably 80% by mass or more, and may be 100% by mass. The content of structural units derived from low-Tg alkyl methacrylate in 100% by mass of (meth)acrylic resin may be adjusted as appropriate depending on the target Tg, but is preferably 10 to 80% by mass, more preferably 20 to 70% by mass, and even more preferably 30 to 60% by mass. C methacrylate 1-5The total content of structural units derived from alkyl esters and styrene monomers is preferably 20 to 350 parts by mass, more preferably 50 to 250 parts by mass, and even more preferably 70 to 150 parts by mass, per 100 parts by mass of structural units derived from low-Tg alkyl (meth)acrylate. The content of structural units derived from acid group-containing monomers is low-Tg alkyl (meth)acrylate and C methacrylate. 1-5 The content of structural units derived from alkyl esters and styrene monomers is, for example, 0 to 8 parts by mass, preferably 0.5 to 5 parts by mass, and more preferably 1.0 to 3 parts by mass, per 100 parts by mass of the total structural units derived from alkyl esters and styrene monomers. The content of structural units derived from cyclic alkyl (meth)acrylates is low Tg alkyl (meth)acrylate and C methacrylate. 1-5 The content of structural units derived from alkyl esters and styrene monomers is, for example, 0 to 25 parts by mass, preferably 2 to 20 parts by mass, and more preferably 5 to 15 parts by mass, per 100 parts by mass of the total structural units derived from alkyl esters and styrene monomers. The content of structural units derived from hydroxyl group-containing monomers is low-Tg alkyl (meth)acrylate and C methacrylate. 1-5 For every 100 parts by mass of the total structural units derived from alkyl esters and styrene monomers, the amount is, for example, 0 to 15 parts by mass, preferably 1 to 10 parts by mass, and more preferably 2 to 8 parts by mass. 【0184】 When forming an adhesive portion using an adhesive ink, it is preferable to add the resin to the adhesive ink as an emulsion; that is, in the adhesive ink, it is preferable that the adhesive resin is contained as emulsion particles. The shape of the emulsion particles is not particularly limited, but is usually spherical. The emulsion particles may be resin particles having a single-phase structure, or resin particles having a multi-phase structure (preferably a core-shell structure). The average particle diameter of the emulsion particles is, for example, 30 to 500 nm, preferably 80 to 300 nm, more preferably 100 to 300 nm, and even more preferably 150 to 250 nm. 【0185】The content of adhesive resin in the solid content (non-volatile content) of the adhesive ink is, for example, 60 to 100% by mass, preferably 80 to 99.5% by mass, and more preferably 90 to 99% by mass. It is also preferable to adjust the content of adhesive resin in the adhesive portion to the above range. 【0186】 The adhesive ink may further contain one or more surfactants. The surfactants included in the adhesive ink are the same as those described for surfactants included in the image-receiving layer-forming composition, including their preferred embodiments. The surfactant content in the solid content (non-volatile content) of the adhesive ink is, for example, 0.1 to 8% by mass, preferably 0.5 to 5% by mass, and more preferably 1 to 3% by mass. It is also preferable to adjust the surfactant content in the adhesive portion to within the above range. 【0187】 The adhesive ink preferably further contains one or more solvents. The solvents act as diluents to adjust the viscosity of the adhesive ink. The description of solvents contained in color inks, including preferred embodiments, can be applied mutatis mutandis to the solvents contained in the adhesive ink. The solvent content in the adhesive ink is not particularly limited and can be set according to the desired viscosity of the adhesive ink, but is, for example, 40 to 90% by mass, preferably 50 to 88% by mass, and more preferably 60 to 85% by mass. 【0188】 The adhesive ink may contain one or more additives other than those described above, to the extent that the purpose of this disclosure is not hindered. For example, it may contain appropriate amounts of additives such as crosslinking agents, leveling agents, dispersants, UV absorbers, UV stabilizers, thickeners, wetting agents, plasticizers, stabilizers, defoamers, antioxidants, crosslinking accelerators, pH adjusters, and preservatives. 【0189】3-2. Transfer to the Transfer Medium Figure 2 schematically shows an example of the transfer process. In the transfer medium 200, the surface on which the image receiving layer 2 is formed (more specifically, the surface on which the image portion 3 is formed) is brought into contact with the transfer medium 6, and then the transfer substrate 100 is peeled off to transfer the desired image to the transfer medium 6. In this disclosure, the transferability is enhanced by using a specific image receiving layer 2, specifically, the peelability of the interface between the image receiving layer 2 and the substrate layer 1 is enhanced, so that image residue on the transfer substrate after transfer can be prevented. 【0190】 Figure 3 schematically shows another example of the transfer process. In Figure 3, when the transfer substrate 100 is peeled off, the image receiving layer 2 cohesively breaks down along the planar direction of the transfer substrate 100, thereby transferring the desired image to the transfer medium 6. As in Figure 2, when peeling occurs at the interface between the image receiving layer 2 and the substrate layer 1, if the surface of the substrate layer 1 is smooth, the surface of the image receiving layer 2, which is the outermost surface in the transfer print 300, will also be smooth, resulting in an image in the resulting transfer print 300 that is glossy (i.e., less matte). However, according to the method in Figure 3, when peeling, the image receiving layer 2 cohesively breaks down along the planar direction of the transfer substrate 100, so that the surface of the image receiving layer 2 in the transfer print 300 is not smooth, regardless of the substrate layer 1 used, and the matteness of the image can be improved. 【0191】 The transfer medium is not particularly limited, and can be metal, wood, plastic, paper, fabric, etc. The metal, wood, plastic, and paper that can be used as the transfer medium are the same as the examples of metal, wood, plastic, and paper that can be used as the base layer described above. 【0192】 From the viewpoint of maximizing the effects of using the image-receiving layer-forming composition and transfer substrate of this disclosure, it is preferable to use a fabric as the transfer medium. The fabric is not particularly limited and includes all textile products such as cloths and woven fabrics made from natural fibers and / or synthetic fibers as raw materials. Examples of fabrics include woven fabrics, nonwoven fabrics, knitted fabrics, etc. The fibers constituting the fabric are also not particularly limited and include, for example, natural fibers, chemical fibers, or mixtures thereof. 【0193】Preferred natural fibers include, for example, silk, cotton, and wool. Chemical fibers include synthetic fibers, regenerated fibers, and semi-synthetic fibers. Preferred synthetic fibers include, for example, polyester fibers, nylon fibers, acrylic fibers, polyurethane fibers, polyethylene fibers, polypropylene fibers, and vinylon fibers. A preferred regenerated fiber is, for example, rayon. Preferred semi-synthetic fibers include acetate and triacetate. Among these, fabrics formed from cotton, polyester fibers, polypropylene fibers, nylon fibers, or mixtures thereof are preferred, and fabrics formed from cotton, polyester fibers, nylon fibers, or mixtures thereof are more preferred. 【0194】 In this disclosure, transfer printing is preferably performed by thermal transfer, that is, the step of bringing the transfer medium and the transfer medium into contact (hereinafter referred to as the contact step) is preferably performed under heating and pressure. Examples of such a contact step include a method of bringing the transfer medium into close contact with the transfer medium using a press or a heated drum and then heating and pressurizing it. 【0195】 Furthermore, if the transfer medium is a fabric, it is preferable that during the contact process, a portion of the adhesive portion is made to interlock with the fabric. 【0196】 The heating temperature in the contact step is not particularly limited, but is preferably 80 to 220°C, more preferably 120 to 200°C, and even more preferably 140 to 190°C. The pressure in the contact step is also not particularly limited, but is 100 to 600 g / cm². 2 Preferably, it is 200 to 500 g / cm³. 2 That is the case. 【0197】 The contact time in the aforementioned contact step is preferably 1 second or longer from the viewpoint of further improving transferability. There is no particular upper limit to the contact time, but from the viewpoint of productivity, it is preferably 1 minute or less, more preferably 30 seconds or less, and even more preferably 10 seconds or less. 【0198】After the contact step, the transfer substrate is peeled off the transfer medium to obtain the desired transfer print. The peeling when removing the transfer substrate from the transfer medium may occur at the interface between the substrate layer and the surface on which at least one of the image portion, background portion, and adhesive portion is formed in the image receiving layer, as shown in Figure 2. Alternatively, the peeling may be carried out so that the image receiving layer cohesively breaks along the surface direction of the transfer substrate, as shown in Figure 3. It is preferable that this cohesive breakdown occurs at a high rate in the transfer printing target area (specifically, the area corresponding to the portion on which at least one of the image portion, background portion, and adhesive portion is formed in the image receiving layer), and more preferably in all the areas corresponding to the portion on which the adhesive portion is formed. 【0199】 When peeling off the transfer substrate, it may be peeled off at a relatively high temperature (i.e., hot peel) or at a low temperature (i.e., cold peel). From the viewpoint of shortening the time from the contact step to peeling off the transfer substrate and increasing productivity, it is preferable to use hot peel. 【0200】 In the hot peel process, the difference between the heating temperature in the bonding step and the peeling temperature of the transfer substrate in the transfer step (heating temperature - peeling temperature) is preferably 0 to 70°C, more preferably 30 to 68°C, and even more preferably 45 to 65°C. By adjusting the difference between the heating temperature and the peeling temperature to be below the above upper limit, the cohesive breakdown becomes easier, the time until the transfer substrate is peeled is shortened, and productivity can be further increased. By adjusting it to be above the above lower limit, transfer defects due to the image receiving layer becoming too weak during peeling can be further suppressed. The peeling temperature of the transfer substrate can be determined by measuring the temperature of the transfer medium when the transfer substrate is peeled. In the hot peel process, the peeling temperature of the transfer substrate can be appropriately adjusted according to the heating temperature in the contact step, but for example, it is preferably above 60°C, preferably 80 to 200°C, more preferably 85 to 180°C, even more preferably 90 to 150°C, and may also be 90 to 108°C. 【0201】As described above, from the viewpoint of productivity, it is preferable that the time from the contact process to the peeling off of the transfer substrate be short. The time from the end of the contact process to the peeling off of the transfer substrate is, for example, 15 seconds or less, preferably 10 seconds or less, more preferably 8 seconds or less, and may be around 5 seconds. Furthermore, from the viewpoint of preventing the intensity of the image receiving layer from becoming too low during peeling, the time from the contact process to the peeling off of the transfer substrate is preferably 1 second or more, and more preferably 3 seconds or more. 【0202】 To perform hot peeling without impairing transferability, it is preferable to provide a release layer between the substrate layer and the image-receiving layer, or to add waxes to the image-receiving layer-forming composition or the image-receiving layer. In particular, it is more preferable to add waxes to the image-receiving layer-forming composition or the image-receiving layer, as this eliminates the need for a release layer, and it is even more preferable to add waxes to the image-receiving layer-forming composition or the image-receiving layer and then perform hot peeling. As a result, when the transfer substrate is peeled off, the waxes contained in the image-receiving layer become less viscous, reducing the strength of the image-receiving layer, and thus easily enabling cohesive failure in the planar direction as shown in Figure 3. 【0203】 Furthermore, when employing a cold peel method, it is preferable to peel off the transfer substrate after the temperature of the transfer medium (i.e., the peeling temperature of the transfer substrate) has dropped to 60°C or below (particularly 40°C or below) in order to further reduce the amount of image remaining on the transfer substrate after peeling. When using the image-receiving layer forming composition or transfer substrate of this disclosure and employing a cold peel method, even if there is no release layer between the substrate layer and the image-receiving layer, the peelability at the interface between the substrate layer and the image-receiving layer is enhanced, so that a transfer as shown in Figure 2 can be performed without impairing the transferability. 【0204】Furthermore, the resulting transfer print may be heated and pressurized using a press or heating drum. Additional heating and pressurizing of the resulting transfer print further enhances the adhesion between the transfer medium and the image, improving wash and tumble-dry fastness. Additionally, by placing a release paper with a textured surface on the printed area of ​​the transfer print (specifically, on the image-receiving layer) and then heating and pressurizing it, the texture derived from the release paper can be transferred to the printed surface of the transfer print, giving the image a matte finish. The heating temperature in this step is not particularly limited, but is preferably 80 to 200°C, and more preferably 100 to 180°C. The pressure in this step is also not particularly limited, but is preferably 100 to 600 g / cm². 2 Preferably, it is 200 to 500 g / cm³. 2 The heating and pressurizing time in this process is not particularly limited, but is preferably 1 second to 1 minute, and more preferably 3 seconds to 30 seconds. 【0205】 In the transfer print obtained in this manner, the image receiving layer is formed on the uppermost surface of the print. In the technology of this disclosure, since the composition of this image receiving layer is devised as described above, the transfer print of this disclosure has excellent wet friction fastness and / or wash and tumble dry fastness. 【0206】 This application claims the benefit of priority based on Japanese Patent Application No. 2024-218722, filed on 13 December 2024. The entire specification of Japanese Patent Application No. 2024-218722, filed on 13 December 2024, is incorporated herein by reference. 【0207】 The contents of this disclosure will be explained in more detail below with reference to examples, but the contents of this disclosure are not limited by the examples below, and it is certainly possible to implement the disclosure with appropriate modifications to the extent that it is in line with the spirit of the preceding and following, and all such modifications are included in the technical scope of this disclosure. In the following, unless otherwise specified, "parts" means "parts by mass" and "%" means "percent mass". 【0208】(Emulsion Production Example 1) 1125 parts of deionized water were charged into a polymerization reactor equipped with a stirrer, reflux condenser, thermometer, nitrogen inlet tube, and dropping funnel. The internal temperature was then raised to 75°C while stirring under a nitrogen gas flow. A monomer emulsion having the composition shown in Table 1 was charged into the dropping funnel. Next, while maintaining the internal temperature of the polymerization reactor at 75°C, 16.0 parts of the monomer emulsion and 50 parts of a 5% aqueous solution of an azo-based initiator [manufactured by Fujifilm Wako Pure Chemical Industries, Ltd., trade name: V-50] (hereinafter referred to as 5% V-50 aqueous solution) were added to start the initial polymerization. After 40 minutes, while maintaining the reaction system temperature at 75°C, the remaining monomer emulsion was uniformly added dropwise over 240 minutes. Simultaneously with the monomer emulsion, 30 parts of the 5% V-50 aqueous solution were uniformly added dropwise over 240 minutes. After the dropwise addition was complete, the contents of the polymerizer were maintained at 75°C for 180 minutes, and the pH was adjusted to 8.5 and the solid content to 35% by adding 25% aqueous ammonia and deionized water, thereby terminating the polymerization. After the resulting reaction solution was cooled to room temperature, it was filtered through a 300-mesh wire mesh to obtain a (meth)acrylic resin emulsion containing resin emulsion particles (hereinafter referred to as emulsion 1). The average particle size of the emulsion particles contained in emulsion 1 was 220 nm, the Tg of the resin constituting the particles was 10°C, and the acid value was 24 mg KOH / g. 【0209】 (Emulsion Production Examples 2-7) Except for changing the composition of the monomer emulsion to the composition shown in Table 1, the same procedure as in Emulsion Production Example 1 was carried out to obtain (meth)acrylic resin emulsions 2-7 (hereinafter referred to as emulsions 2-7). The average particle size of the emulsion particles contained in each emulsion, as well as the Tg and acid value of the resin constituting the particles, are shown in Table 1. 【0210】 【0211】The abbreviations used in Table 1 mean the following: MMA: Methyl methacrylate CHMA: Cyclohexyl methacrylate St: Styrene 2EHA: 2-Ethylhexyl acrylate BA: n-Butyl acrylate HEMA: 2-Hydroxyethyl methacrylate AA: Acrylic acid Newcol 723: Aqueous solution of Newcol 723 (nonionic emulsifier) ​​manufactured by Nippon Emulsifier Co., Ltd., diluted with water to a concentration of 20% ER-20: Aqueous solution of Adekaria Soap ER-20 (reactive nonionic emulsifier) ​​manufactured by ADEKA Corporation, diluted with water to a concentration of 20% 【0212】 The average particle size of the emulsion particles contained in the emulsion, as well as the Tg and acid value of the resin constituting the emulsion particles, are as follows. 【0213】 (Measurement of average particle size of emulsion particles) The average particle size of emulsion particles (cumulant average particle size) was measured at 25°C using a dynamic light scattering particle size distribution analyzer (manufactured by Otsuka Electronics Co., Ltd., model number: FPAR-1000) with the emulsion obtained in each production example as the measurement sample, and determined using cumulant analysis. 【0214】 (Measurement of Tg of resin) The glass transition temperature (Tg) of the resin constituting the emulsion particles was measured by differential scanning calorimetry (DSC) under the following measurement conditions. Measuring instrument: DSC 3500 (product name, manufactured by NETZSCH) Sample container: Sealed aluminum container Sample weight: 10 mg ± 2 mg Measurement method: Thermal analysis was performed in an N2 atmosphere according to the following temperature programs (1) to (5). (1) Increase temperature from 20°C to 200°C at 10°C / min (2) Hold at 200°C for 5 minutes (3) Decrease temperature from 200°C to -50°C at 10°C / min (4) Hold at -50°C for 5 minutes (5) Increase temperature from -50°C to 300°C at 10°C / min After measurement, the glass transition temperature was analyzed from the DSC curve chart during the temperature increase in (5) using the analysis software proteus Analysis, and the value of the midpoint glass transition temperature was adopted. 【0215】(Acid value of resin) The acid value of the resin constituting the emulsion particles was determined by calculating the amount of potassium hydroxide in mg required to neutralize the acid groups present in 1 g of monomer components used in the production of the emulsion particles. 【0216】 <Example 1A: Preparation of Image Receiving Layer Forming Composition 1> Image receiving layer forming composition 1 was prepared by mixing 15 parts of emulsion 1 as emulsion particles, 15 parts of Epostor MV1004 (manufactured by Nippon Shokubai Co., Ltd.), 0.5 parts of calcium chloride, 0.5 parts of calcium nitrate, 3.0 parts of diethylene glycol monobutyl ether, 0.3 parts of the surfactant KF-6011 (manufactured by Shin-Etsu Chemical Co., Ltd.), 0.3 parts of Surfinol 440 (manufactured by Evonik), and a total of 100 parts of deionized water, and filtering the mixture through a 300-mesh wire mesh. 【0217】 <Examples 2A to 14A, Comparative Examples 1A to 5A: Preparation of Image-Receiving Layer Forming Compositions 2 to 19> Image-receiving layer forming compositions 2 to 19 were prepared in the same manner as in Example 1A, except that the type and amount of each raw material were changed as shown in Table 2, and the amount of deionized water added was adjusted so that the total amount was 100 parts. 【0218】 【0219】 In Table 2, the upper row for each component other than the solvent shows the amount (parts) used, and the lower row shows the percentage (%) of the solids (non-volatile content) of the composition. For the solvent, the amount (parts) used is shown. 【0220】In Table 2, each component is as follows: Emulsion 1: Emulsion 1 obtained in Emulsion Production Example 1 Emulsion 2: Emulsion 2 obtained in Emulsion Production Example 2 Emulsion 3: Emulsion 3 obtained in Emulsion Production Example 3 Emulsion 4: Emulsion 4 obtained in Emulsion Production Example 4 Emulsion 5: Emulsion 5 obtained in Emulsion Production Example 5 Emulsion 6: Emulsion 6 obtained in Emulsion Production Example 6 Emulsion 7: Emulsion 7 obtained in Emulsion Production Example 7 Superflex 300: Manufactured by Daiichi Kogyo Seiyaku Co., Ltd., urethane resin-based emulsion Eposter MV1004: Manufactured by Nippon Shokubai Co., Ltd., does not have Tg because it is a crosslinked particle Eposter MV1010: Manufactured by Nippon Shokubai Co., Ltd., does not have Tg because it is a crosslinked particle Eposter MX200W: Manufactured by Nippon Shokubai Co., Ltd., does not have Tg because it is a crosslinked particle Eposter MX050W: Manufactured by Nippon Shokubai Co., Ltd., does not have Tg because it is a crosslinked particle EMUSTAR-1155: Wax emulsion manufactured by Nippon Seiro Co., Ltd. EMUSTAR-6315: Wax emulsion manufactured by Nippon Seiro Co., Ltd. AQUACER515: Wax emulsion manufactured by BIC Chemie Inc. KF-6011: Manufactured by Shin-Etsu Chemical Co., Ltd. Surfinol 440: Manufactured by Evonik Inc. 【0221】 (Measurement of average particle diameter) The average particle diameter was determined by the following method. Each particle was used as a measurement sample and measured at 25°C using a particle size distribution analyzer (Multisizer 4e, manufactured by Beckman Coulter, Inc.) using the Coulter counter method, and the D50 value in the particle size distribution (volume basis) was calculated. If the calculated D50 value was 1 μm or greater, the D50 value was adopted as the average particle diameter. On the other hand, if the calculated D50 value was less than 1 μm, the particle size distribution analyzer (manufactured by Otsuka Electronics Co., Ltd., model number: FPAR-1000) was used separately and measured at 25°C, and the value obtained using cumulant analysis was adopted as the average particle diameter. 【0222】(Measurement of particle Tg) The glass transition temperature (Tg) of the particles was attempted to be measured by differential scanning calorimetry (DSC) under the following measurement conditions. Measurement instrument: DSC 3500 (product name, manufactured by NETZSCH) Sample container: Sealed aluminum container Sample weight: 10 mg ± 2 mg Measurement method: Thermal analysis was performed in an N2 atmosphere according to the following temperature programs (1) to (5). (1) Heat from 20°C to 200°C at a rate of 10°C / min (2) Hold at 200°C for 5 minutes (3) Cool down from 200°C to -50°C at a rate of 10°C / min (4) Hold at -50°C for 5 minutes (5) Heat from -50°C to 350°C at a rate of 10°C / min After measurement, we attempted to analyze the glass transition temperature from the DSC curve chart during the heating in (5) using the analysis software proteus Analysis. However, since the particles used in this example and the comparative example were all cross-linked particles, no peak corresponding to a glass transition was observed, and it was determined that they did not have a glass transition point. 【0223】 <Example 1B: Preparation of Transfer Substrate 1> A polyester resin film (thickness 100 μm) that would serve as the substrate layer was coated with the image-receiving layer-forming composition 1 using a bar coater. Then, it was dried in a hot air dryer at 110°C for 5 minutes to prepare a transfer substrate 1 coated with an image-receiving layer. The amount of image-receiving layer-forming composition 1 applied was 14 g / m². 2 The thickness of the image-receiving layer was 4 μm. The value obtained from the measurement described below was adopted for the thickness. <Thickness Measurement> A 10 mm x 10 mm section of the central part of the transfer substrate was cut perpendicular to the surface of the transfer substrate, and a 2000x magnified photograph of the film cross-section was taken using a field emission electron microscope (Hitachi High-Technologies Corporation, S-4800). The photograph was taken so that the film cross-section was horizontal to the horizontal direction of the image. For the captured image, the thickness of the image-receiving layer was measured at each of the 20 equal points obtained by dividing the horizontal direction of the image. The above image capture and thickness measurement in the image were performed at five arbitrary locations, and the average value of the thickness of a total of 100 points was adopted as the thickness of the image-receiving layer. 【0224】<Examples 2B to 14B, Comparative Examples 1B to 5B: Preparation of Transfer Substrates 2 to 19> Transfer substrates 2 to 19 coated with an image receiving layer were prepared in the same manner as in Example 1B, except that the type of image receiving layer forming composition 1 was changed as shown below. Example 2B (Transfer Substrate 2): Composition 2 for forming the image receiving layer Example 3B (Transfer Substrate 3): Composition 3 for forming the image receiving layer Example 4B (Transfer Substrate 4): Composition 4 for forming the image receiving layer Example 5B (Transfer Substrate 5): Composition 5 for forming the image receiving layer Example 6B (Transfer Substrate 6): Composition 6 for forming the image receiving layer Example 7B (Transfer Substrate 7): Composition 7 for forming the image receiving layer Example 8B (Transfer Substrate 8): Composition 8 for forming the image receiving layer Example 9B (Transfer Substrate 9): Composition 9 for forming the image receiving layer Example 10B (Transfer Substrate 10): Composition 10 for forming the image receiving layer Example 11B (Transfer Substrate 11): Composition 11 for forming the image receiving layer Example 12B (Transfer Substrate 12): Composition 12 for forming the image receiving layer Example 13B (Transfer Substrate 13): Composition 13 for forming the image receiving layer Example 14B (Transfer Substrate 14): Composition 14 for forming the image receiving layer Comparative Example 1B (Transfer Substrate 15): Composition 15 for forming the image receiving layer Comparative Example 2B (Transfer Substrate 16): Image Receiving Layer Forming Composition 16 Comparative Example 3B (Transfer Substrate 17): Image Receiving Layer Forming Composition 17 Comparative Example 4B (Transfer Substrate 18): Image Receiving Layer Forming Composition 18 Comparative Example 5B (Transfer Substrate 19): Image Receiving Layer Forming Composition 19 【0225】 <Transfer Printing> Using the transfer substrates obtained in each example and comparative example, transfer media were prepared according to the printing and drying processes described below, and the receptivity of various inks was evaluated. Subsequently, the transfer process described below was performed, and the transferability and various properties of the resulting transfer prints were evaluated. The results are shown in Table 3. 【0226】[Preparation of White Ink] White ink was produced by mixing 15 parts of emulsion 8 (described below) as emulsion particles, 23 parts of pigment dispersion 1 (described below), 1.2 parts of Epocross WS-700 (manufactured by Nippon Shokubai Co., Ltd., 25% solids content) (0.3 parts as solids), 2 parts of diethylene glycol monobutyl ether, 15 parts of triethylene glycol, 0.3 parts of the surfactant KF-6011 (manufactured by Shin-Etsu Chemical Co., Ltd., polyether-modified silicone-based surfactant), and a total of 100 parts of deionized water, and filtering the mixture through a 1 μm pore size filter (manufactured by Advantec, Inc., MCP-1-C10S). 【0227】 [Preparation of Cyan Ink] Cyan ink was prepared in the same manner as the white ink, except that pigment dispersion 1 was replaced with pigment dispersion 2 described below. 【0228】(Production of Emulsion 8) 1125 parts of deionized water were charged into a polymerization reactor equipped with a stirrer, reflux condenser, thermometer, nitrogen inlet tube, and dropping funnel. The internal temperature was then raised to 75°C while stirring under a nitrogen gas flow. A monomer emulsion consisting of 30 parts MMA, 30 parts CHMA, 300 parts St, 570 parts 2EHA, 50 parts HEMA, 20 parts AA, 125 parts of an aqueous solution of Adekarya Soap SR-10 (manufactured by ADEKA Corporation, a reactive anionic emulsifier) ​​diluted to a concentration of 20% with water, and 200 parts of deionized water was charged into the dropping funnel. Next, while maintaining the internal temperature of the polymerization reactor at 75°C, 16.0 parts of the monomer emulsion and 50 parts of a 5% ammonium persulfate aqueous solution were added to start the initial polymerization. After 40 minutes, while maintaining the reaction system at 75°C, the remaining monomer emulsion was uniformly added dropwise over 240 minutes. Simultaneously with the monomer emulsion, 30 parts of a 5% ammonium persulfate aqueous solution were uniformly added dropwise over 240 minutes. After the addition was complete, the contents of the polymerizer were maintained at 75°C for 180 minutes, and the pH was adjusted to 8.5 and the solid content to 35% by adding 25% aqueous ammonia and deionized water, thereby completing the polymerization. After cooling the resulting reaction solution to room temperature, it was filtered through a 300-mesh wire mesh to obtain an acrylic resin emulsion containing resin emulsion particles (hereinafter referred to as emulsion 8). The average particle size of the emulsion particles in emulsion 8 was 190 nm, the Tg of the resin constituting the particles was -24°C, and the acid value was 24 mg KOH / g. 【0229】 (Preparation of Pigment Dispersion 1) Five parts of the dispersant Discoat N-14 (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), six parts of propylene glycol, seventy parts of deionized water, and 100 parts of titanium dioxide CR-95 (manufactured by Ishihara Sangyo Co., Ltd.) were packed into a mixture containing 50% zirconia beads with a particle size of 0.5 mm. The mixture was dispersed using a bead mill and filtered through a 1 μm pore size filter (manufactured by Advantec, MCP-1-C10S) to obtain a white pigment dispersion containing 55% pigment (hereinafter referred to as Pigment Dispersion 1). The average particle size of the pigment was 330 nm. 【0230】(Preparation of Pigment Dispersion 2) Three parts of the dispersant Joncryl 678 (manufactured by BASF), 1.3 parts of dimethylaminoethanol, and 81 parts of deionized water were stirred and mixed at 70°C. Next, 15 parts of the blue pigment C. I. Pigment Blue 15:3 LIONOL BLUE FG-7330 (manufactured by Toyo Ink Co., Ltd.), 0.1 parts of the surfactant Olfin D-10PG (manufactured by Nisshin Chemical Industry Co., Ltd.), and 0.5 mm particle size zirconia beads were packed to 50% by volume, dispersed using a bead mill, and filtered through a 1 μm pore size filter (Advantec, MCP-1-C10S) to obtain a blue pigment dispersion containing 15% pigment (hereinafter referred to as Pigment Dispersion 2). The average particle size of the pigment was 90 nm. 【0231】 (Measurement of average particle size of pigments) The average particle size of the pigments (cumulant average particle size) was measured at 25°C using a dynamic light scattering particle size distribution analyzer (manufactured by Otsuka Electronics Co., Ltd., model number: FPAR-1000) with the pigment dispersions obtained in each production example as measurement samples, and determined using cumulant analysis. 【0232】 [Preparation of Adhesive Ink] An adhesive ink was produced by mixing 25 parts of emulsion 9 (described below) as emulsion particles, 2 parts of diethylene glycol monobutyl ether, 15 parts of triethylene glycol, 0.6 parts of the surfactant KF-6011 (manufactured by Shin-Etsu Chemical Co., Ltd.), and 100 parts of deionized water, and filtering the mixture through a 1 μm pore size filter (manufactured by Advantec, MCP-1-C10S). 【0233】(Preparation of Emulsion 9) 350 parts of deionized water were charged into a polymerization reactor equipped with a stirrer, reflux condenser, thermometer, nitrogen inlet tube, dropping funnel A and dropping funnel B. The internal temperature was then raised to 75°C while stirring under a nitrogen gas flow. Monomer emulsion A, consisting of 125 parts MMA, 50 parts CHMA, 75 parts St, 150 parts 2EHA, 70 parts BA, 20 parts HEMA, 10 parts AA, 3 parts t-dodecyl mercaptan, 62.5 parts of an aqueous solution of Adekarya Soap SR-10 (manufactured by ADEKA Corporation, a reactive anionic emulsifier) ​​diluted to a concentration of 20% with water, and 100 parts of deionized water, was charged into dropping funnel A. Furthermore, monomer emulsion B consisting of 125 parts MMA, 50 parts CHMA, 75 parts St, 150 parts 2EHA, 70 parts BA, 20 parts HEMA, 10 parts AA, 2 parts t-dodecyl mercaptan, 62.5 parts of an aqueous solution of Adekarya soap SR-10 diluted to a concentration of 20% with water, and 100 parts deionized water was charged into the dropping funnel B. Next, while maintaining the internal temperature of the polymerizer at 75°C, 27.0 parts of monomer emulsion A, 5 parts of a 5% potassium persulfate aqueous solution (oxidizing agent) and 10 parts of a 2% sodium bisulfite aqueous solution (reducing agent), which are polymerization initiators, were added to start the initial polymerization. After 40 minutes, while maintaining the reaction system temperature at 80°C, the remaining monomer emulsion A was uniformly added dropwise over 105 minutes. Simultaneously with monomer emulsion A, 45 parts of 5% potassium persulfate aqueous solution and 40 parts of 2% sodium bisulfite aqueous solution were uniformly added dropwise over 105 minutes. Immediately after the addition of monomer emulsion A was completed, monomer emulsion B was uniformly added dropwise over 105 minutes. Simultaneously with monomer emulsion B, 50 parts of 5% potassium persulfate aqueous solution and 50 parts of 2% sodium bisulfite aqueous solution were uniformly added dropwise over 105 minutes. After the addition of monomer emulsion B was completed, the same temperature was maintained for 60 minutes. Thereafter, the pH was adjusted to 8.5 and the solid content to 45% by adding 25% aqueous ammonia and deionized water, and polymerization was completed. After the obtained reaction solution was cooled to room temperature, it was filtered through a 300-mesh wire mesh to obtain a (meth)acrylic resin emulsion containing resin emulsion particles (hereinafter referred to as emulsion 9). The average particle size of the emulsion particles in emulsion 9 was 230 nm, the Tg of the resin constituting these particles was 5°C, and the acid value was 24 mg KOH / g. 【0234】[Preparation of Inkjet Ejector] Two Mastermind printers (MMP-TX13) were prepared and designated as Printer A and Printer B. A rubber heater was placed on top of the platen of each printer and heated to 50°C. Printer A was filled with cyan ink (color ink) and white ink (white ink). Printer B was filled with adhesive ink. 【0235】 [Printing Process] A transfer substrate was placed on a rubber heater so that the image-receiving layer surface became the printing surface, and an image was formed using the inkjet method. Specifically, a solid print (8 x 16 cm) was made using cyan ink with printer A. 2 After doing that, a solid print (8 x 16 cm) of white ink is applied on top of it. 2 The printed transfer substrate was then transferred to printer B, and a solid print (8 x 16 cm) was made on top of it using adhesive ink. 2 The following was performed: The amount of cyan ink dispensed was 10 g / m² per unit area. 2 The white ink discharge rate is 70 g / m² per unit area. 2 The discharge rate of the adhesive ink is 135 g / m² per unit area. 2 That was the case. 【0236】 [Drying process] The image-formed substrate was dried in a hot air dryer at 150°C for 15 minutes to prepare the transfer medium. 【0237】 [Transfer Process] A Horizon International TP-630M transfer press was used. The heating temperature was 150°C, and the press load was 3kN (transfer pressure: 400g / cm²). 2 The settings were as follows: The fabric to be transferred (100% cotton white T-shirt made by Hanes) was placed on the lower pressing iron, and the transfer medium was placed on top of it with the print side facing down, and stamped for 10 seconds. After stamping, once the temperature of the fabric had dropped to below 40°C, the transfer material was peeled off the fabric to obtain the transferred print. The obtained transferred print was then placed back on the lower pressing iron, silicone release paper was placed on top of the transferred print, and stamped for 5 seconds to press the image onto the fabric. 【0238】[Characteristic Evaluation] (1) Color Ink Receptivity The image area formed by the color ink was visually inspected on the obtained transfer medium, and the color ink receptivity was evaluated according to the following evaluation criteria. ○: Satisfies both (a) and (b) below △: Satisfies at least one of (c) and (d) below, and does not fall under (e) and (f) ×: Satisfies at least one of (e) and (f) (a) No bleeding or unevenness of the image area when viewed from the substrate layer side (b) No bleeding of the image area into the base area formed by the white ink when viewed from the adhesive ink printing surface side (c) Bleeding and / or unevenness of the image area when viewed from the substrate layer side (d) Bleeding of the image area into the base area formed by the white ink when viewed from the adhesive ink printing surface side (e) Bleeding and / or unevenness of the image area is noticeable when viewed from the substrate layer side (f) Bleeding of the image area into the base area formed by the white ink is noticeable when viewed from the adhesive ink printing surface side 【0239】 (2) White ink receptivity In the obtained transfer medium, the white ink receptivity of the base area formed with white ink was evaluated according to the following evaluation criteria. ○: Maximum overhang width from the printing area is 0.2 mm or less △: Maximum overhang width from the printing area is greater than 0.2 mm and less than or equal to 0.5 mm ×: Maximum overhang width from the printing area is greater than 0.5 mm 【0240】 (3) Transferability Regarding the peeling of the transfer substrate in the transfer process, the transferability was evaluated according to the following evaluation criteria. ○: Peeling is easy, and no printed image remains on the transfer substrate after peeling. △: Peeling is difficult, but no printed image remains on the transfer substrate after peeling. ×: The printed image remains on the transfer substrate after peeling. 【0241】(4) Wet friction fastness The transferred printed materials were subjected to a wet friction test using a Type II tester with attached white cloth made of cotton No. 3-1, in accordance with the method specified in JIS L0849, with a load of 200g and 100 back-and-forth movements, and evaluated using a grayscale of discoloration. In Comparative Examples 1B, 2B, 4B, and 5B, it was not possible to evaluate the wet friction fastness because not all of the printed images could be transferred. ○: Wet friction test staining grade 4 or higher △: Wet friction test staining grade 3-4 or grade 3 ×: Wet friction test staining grade 2-3 or lower 【0242】 (5) Washing and tumble drying fastness The obtained transfer prints were washed and tumble dried under the following conditions, and the samples obtained after tumble drying were used. (Washing conditions) ・Washing machine: Model number NA-F5B1 (Panasonic Corporation) ・Water volume: 32L ・Course: Rinse once (Wash → Rinse (1 time) → Spin dry) ・Detergent: Ariel Laundry Detergent Liquid Disinfectant Plus (P&G Corporation), amount used 35g (Tumble drying conditions) ・Tumble dryer: Model number NH-D503 (Panasonic Corporation) ・Course: Standard (Evaluation) For the samples obtained by the above method, the washing and tumble drying fastness was evaluated based on the number of cracks in the print according to the following criteria. In comparative examples 1B, 2B, 4B, and 5B, it was not possible to transfer all of the printed images, so the washing and tumble drying fastness could not be evaluated. ○: 5 or fewer cracks △: 6 to 15 cracks ×: 16 or more cracks 【0243】 【0244】 100 Transfer substrate 1 Substrate layer 2 Image receiving layer 200 Transfer medium 3 Image area 4 Base layer 5 Adhesive area 6 Transfer medium 300 Transfer print

Claims

1. A composition for forming an image-receiving layer provided on a transfer substrate, comprising a (meth)acrylic resin, particles with an average particle diameter of 0.2 μm or more, and a flocculant, wherein the particles satisfy at least one of the following requirements (1) to (3): (1) No glass transition temperature (2) Glass transition temperature of 50°C or higher (3) Melting point of 80°C or higher 2. The composition according to claim 1, wherein the transfer substrate is used for thermal transfer.

3. The composition according to claim 1, wherein the transfer substrate is used for transfer printing onto a fabric.

4. The composition according to claim 1, wherein the (meth)acrylic resin is emulsion particles.

5. The composition according to claim 1, wherein the acid value of the (meth)acrylic resin is 50 mg KOH / g or less.

6. The composition according to claim 1, wherein the glass transition temperature of the (meth)acrylic resin is -50°C or higher and less than 50°C.

7. A transfer substrate comprising a base layer and an image receiving layer, wherein the image receiving layer comprises a (meth)acrylic resin, particles with an average particle diameter of 0.2 μm or more, and a flocculant, and the particles satisfy at least one of the following requirements (1) to (3): (1) It does not have a glass transition temperature (2) Its glass transition temperature is 50°C or higher (3) Its melting point is 80°C or higher 8. A transfer substrate according to claim 7, used for thermal transfer.

9. The transfer substrate according to claim 7, used for transfer printing onto fabric.

10. The transfer substrate according to claim 7, wherein the acid value of the (meth)acrylic resin is 50 mg KOH / g or less.

11. The transfer substrate according to claim 7, wherein the glass transition temperature of the (meth)acrylic resin is -50°C or higher and less than 50°C.

12. The transfer substrate according to claim 7, wherein the image receiving layer is laminated on the substrate layer without a release layer in between.

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