JP2007272064A - Image receiving sheet for electrostatic charge liquid development, and image receiving label for electrostatic charge liquid development - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image receiving sheet for electrostatic charge liquid development in which an image receiving layer excellent in adhesiveness to a toner image by electrostatic charge liquid development and also in adhesiveness to a substrate is provided, and to provide an image receiving label for electrostatic charge liquid development. <P>SOLUTION: The image receiving sheet for electrostatic charge liquid development is characterized in that the image receiving layer is formed by applying and drying a coating liquid, which contains an ethylene-(meth)acrylic acid copolymer and a tetramethylxylylene diisocyanate-blocked isocyanate crosslinking agent, on at least one surface of a substrate. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an image receiving sheet for developing an electrostatic charge liquid and an image receiving label for developing an electrostatic charge liquid, which are excellent in adhesion to a toner image by electrostatic charge liquid development.

  Today, as consumers' needs are diversifying, the tendency to demand a small quantity and a wide variety of production is also becoming more prominent. Thus, attention has been paid to an electrophotographic method that does not require a costly and time-consuming plate making process as a method for meeting such requirements. In particular, the electrostatic charge liquid developing method, which is a wet electrophotographic method using liquid toner, has a smaller average particle diameter of the particles constituting the toner than the dry electrophotographic method using powder toner. The same high definition as the printing method or offset printing method can be achieved. In this electrostatic charge liquid development method, first, an electrostatic latent image is formed by irradiating a charged drum with a laser to dissipate the charge, and then the latent image is brought into contact with liquid toner having a charge to develop the image. To do. Next, the image is transferred from the drum to the intermediate transfer member by static electricity, the image is melted on the intermediate transfer member, and transferred to the image receiving sheet by heat and pressure to fix the image.

It is a well-known fact that when the substrate of this image receiving sheet is a plastic film, a plastic sheet or the like, the adhesion between the toner image and the image receiving sheet is low, and the toner image is easily peeled off from the image receiving sheet. is there. Thus, as a method for improving the adhesion between the toner image and the image receiving sheet, for example, Patent Document 1 describes a sheet in which a resin mainly composed of polyethylene serving as an image receiving layer is applied to the surface of a base material. ing. Japanese Patent Application Laid-Open No. H10-228667 describes a primer layer made of an ethylene / acrylic acid resin or polybutadiene resin serving as an image receiving layer on a printed material such as a plastic film.
JP-A-9-281738 JP-A-10-76744

However, the image-receiving sheets described in Patent Document 1 and Patent Document 2 have insufficient adhesion between the image-receiving layer and the toner image, and also insufficient adhesion between the substrate and the image-receiving layer.
Accordingly, the present invention provides an image receiving sheet for developing an electrostatic charge liquid and an image receiving label for developing an electrostatic charge liquid provided with an image receiving layer having excellent adhesion to a toner image as well as adhesion to a toner image by electrostatic charge liquid development. For the purpose.

  As a result of intensive studies in view of the above points, the present inventor has found that an isocyanate cross-linking agent (hereinafter referred to as “an ethylene / (meth) acrylic acid copolymer and tetramethylxylylene diisocyanate) blocked on the surface of the substrate. The image-receiving layer formed by applying and drying a coating solution containing a TMXDI block isocyanate cross-linking agent) exhibits excellent adhesion with a toner image by electrostatic charge liquid development, It has been found that the adhesiveness is excellent.

The electrostatic charge liquid developing image-receiving sheet of the present invention made on the basis of the above knowledge is, as described in claim 1, an ethylene / (meth) acrylic acid copolymer and a TMXDI block isocyanate crosslinked on at least one side of the substrate. An image receiving layer is formed by applying a coating liquid containing an agent and drying.
The electrostatic charge liquid developing image receiving sheet according to claim 2 is the electrostatic charge liquid developing image receiving sheet according to claim 1, wherein the fixing resin of the liquid toner used for electrostatic charge liquid development is ethylene / (meth) acrylic acid. It is characterized by including a copolymer.
The image receiving sheet for developing electrostatic charge according to claim 3 is the image receiving sheet for developing electrostatic charge according to claim 1 or 2, wherein the thickness of the image receiving layer is from 0.1 to 5.0 μm. And
The electrostatic charge liquid developing image-receiving sheet according to claim 4 is the electrostatic charge liquid developing image-receiving sheet according to any one of claims 1 to 3, wherein the drying temperature of the coating liquid applied to the substrate is from 60 to 60. It is characterized by being 80 ° C.
The image receiving label for developing an electrostatic charge liquid according to the present invention has a surface of a substrate on which the image receiving layer of the image receiving sheet for developing an electrostatic charge according to any one of claims 1 to 4 is formed. A pressure-sensitive adhesive layer and a release material are laminated in this order on the opposite surface.

  In the image-receiving sheet for electrostatic charge liquid development of the present invention, the coating liquid containing an ethylene / (meth) acrylic acid copolymer and a TMXDI block isocyanate crosslinking agent was applied to at least one surface of the base material and dried. The image receiving layer exhibits excellent adhesion to a toner image obtained by electrostatic charge liquid development, and also excellent adhesion to a substrate. Therefore, if the image-receiving sheet for developing electrostatic charge liquid of the present invention is used, the transferred image can be fixed satisfactorily, and electrostatic charge liquid development satisfying the demand for high-definition production of a small quantity and various kinds of printed materials becomes possible. Become.

  The image-receiving sheet for developing an electrostatic charge liquid of the present invention has an image-receiving layer formed by applying a coating liquid containing an ethylene / (meth) acrylic acid copolymer and a TMXDI block isocyanate cross-linking agent on at least one side of a substrate and drying it. It is characterized by being formed.

  The ethylene / (meth) acrylic acid copolymer as a constituent component of the coating liquid for forming the image receiving layer in the image receiving sheet for electrostatic charge liquid development of the present invention includes various commercially available products of aqueous solution type and dispersion type, A well-known thing can be used. For example, as an aqueous solution type ethylene / acrylic acid copolymer, high-tech S-3121 (trade name) of Toho Chemical Industry Co., Ltd., Seixen A (trade name) of Sumitomo Seika Co., Ltd. Examples of the dispersion type ethylene / acrylic acid copolymer include Rikabond ET-8 (trade name) manufactured by Chuo Rika Kogyo Co., Ltd. Examples of the aqueous solution type ethylene / methacrylic acid copolymer include Hitech SC-100 (trade name) manufactured by Toho Chemical Industry Co., Ltd., and examples of the dispersion type ethylene / methacrylic acid copolymer include Chuo Rika Kogyo. The company's Aquatex AC-3100 (trade name) and the like. In addition, as a component of the coating liquid, ethylene / (meth) acrylic acid copolymer, ethylene / (meth) methyl acrylate copolymer, ethylene / (meth) ethyl acrylate copolymer, ethylene / (meta ) Propyl acrylate copolymer, ethylene / (meth) acrylic acid butyl copolymer, ethylene / (meth) acrylic acid 2-ethylhexyl copolymer etc. Also good.

  Since TMXDI in the TMXDI block isocyanate cross-linking agent has a high saturated vapor pressure, it is desirable to use it as a burette body, isocyanurate body, or adduct body. As blocking agents used for blocking TMXDI, oximes exemplified by methyl ethyl ketoxime and acetooxime, alkylphenols exemplified by nonylphenol and octylphenol, active methylenes exemplified by ethyl acetoacetate and ethyl malonate, Examples include lactams exemplified by ε-caprolactam, among which oximes having a relatively low dissociation temperature are preferable. The isocyanate group of TMXDI is activated by the dissociation of the blocking agent due to the high temperature during drying or printing of the coating solution. Examples of TMXDI block isocyanate cross-linking agents using oximes as blocking agents include Elastolon BN-08 (trade name) from Daiichi Kogyo Seiyaku Co., Ltd. and Takenate XB-77-M9 (trade name) from Takeda Pharmaceutical Company Limited. It is done.

  The blending amount of the ethylene / (meth) acrylic acid copolymer and the TMXDI block isocyanate cross-linking agent in the coating liquid is the TMXDI block isocyanate cross-linking agent with respect to 100 parts by weight of the ethylene / (meth) acrylic acid copolymer. 1 to 50 parts by weight is desirable, and 5 to 40 parts by weight is more desirable (solid content ratio). While the amount of the TMXDI block isocyanate cross-linking agent is less than 1 part by weight based on 100 parts by weight of the ethylene / (meth) acrylic acid copolymer, the adhesion between the substrate and the image receiving layer may be insufficient. If the amount exceeds 50 parts by weight, the toner image and the image receiving layer may be insufficiently adhered. The solid content of the coating solution containing the ethylene / (meth) acrylic acid copolymer and the TMXDI block isocyanate crosslinking agent is preferably 0.5 to 30% by weight, and preferably 1 to 25% by weight. Is more desirable. If the solid content is less than 0.5% by weight, the coating thickness required for forming the image receiving layer on the surface of the substrate may not be obtained, whereas if it exceeds 30% by weight, the viscosity of the coating solution is high. There is a possibility that a smooth coated surface may not be obtained due to too much.

  The coating liquid is preferably prepared using a mixed solvent of water and methyl alcohol. By applying a coating solution prepared using a mixed solvent of water and methyl alcohol to the surface of the substrate, an image-receiving layer having excellent transparency without foaming or clouding can be formed. The mixing ratio of water and methyl alcohol is preferably 10 to 60 parts by weight of methyl alcohol with respect to 100 parts by weight of water. When the mixing amount of methyl alcohol is less than 10 parts by weight with respect to 100 parts by weight of water, the coating liquid is likely to be repelled from the base material, and the drying time may become longer and impractical. If it exceeds 1, the coating solution tends to gel, and stable coating may not be possible.

  In addition, in the coating liquid, an inorganic pigment or an organic pigment may be appropriately blended to prevent blocking, and an antifoaming agent, an ultraviolet absorber, an antioxidant, a leveling agent, a viscosity modifier, etc. are blended as appropriate. May be.

  The substrate in the image receiving sheet for developing an electrostatic charge liquid of the present invention is not particularly limited, but is made of a synthetic resin such as a polyethylene film, a polypropylene film, a vinyl chloride film, in addition to a polyester film exemplified by a polyethylene terephthalate film. A film can be suitably used. The thickness of the substrate is preferably 10 to 300 μm, more preferably 20 to 200 μm. In addition, in order to improve the adhesiveness of a base material and an image receiving layer, you may perform processes, such as a corona treatment and a flame treatment, to a base material. Further, an anchor coat layer made of a polyester resin, an acrylic resin, or the like may be provided on the base material, and an image receiving layer may be formed on the anchor coat layer.

  Application of the coating liquid to the surface of the substrate may be performed using, for example, an air knife coater, a blade coater, a reverse roll coater, a gravure coater, a bar coater, or the like. Of these, a gravure coater can be preferably used. As a method for drying the coating liquid applied to the surface of the substrate, for example, hot air drying can be used. The drying temperature of the coating liquid is preferably 60 to 80 ° C. If the drying temperature is less than 60 ° C., stable adhesion between the substrate and the image receiving layer may be difficult to obtain, whereas if it exceeds 80 ° C., stable adhesion between the toner image and the image receiving layer. May be difficult to obtain.

  The thickness of the image receiving layer formed on the surface of the substrate as described above is preferably 0.1 to 5.0 μm, and more preferably 0.5 to 3.0 μm. If the thickness of the image receiving layer is less than 0.1 μm, stable adhesion between the substrate and the image receiving layer may be difficult to obtain, whereas if it exceeds 5.0 μm, blocking after winding the substrate. May be more likely to occur.

  The electrostatic charge liquid developing image-receiving sheet of the present invention produced as described above is obtained by laminating an adhesive layer and a release material in this order on the surface opposite to the surface of the substrate provided with the image-receiving layer. An image receiving label for development can be obtained.

  As the pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer, any of emulsion-type, solvent-type and solventless-type pressure-sensitive adhesives may be used. For example, in addition to acrylic pressure-sensitive adhesives, rubber-based, polyester-based, polyurethane-based pressure-sensitive adhesives Etc. can be used. Moreover, when heat resistance is required, a silicone-based pressure-sensitive adhesive having excellent heat resistance may be used. The thickness of the pressure-sensitive adhesive layer is preferably 5 to 60 μm, and more preferably 15 to 40 μm. If the thickness of the pressure-sensitive adhesive layer is less than 5 μm, the adhesive force may be insufficient. On the other hand, if it exceeds 60 μm, the pressure-sensitive adhesive may protrude. The pressure-sensitive adhesive layer may be formed, for example, by applying the pressure-sensitive adhesive to the surface of the substrate using a knife coater, roll coater, die coater or the like and then drying it. By laminating a release material on the pressure-sensitive adhesive layer thus formed, an image receiving label for developing an electrostatic charge liquid can be produced. In addition, the image receiving label for developing an electrostatic charge liquid is coated with an adhesive on the surface of a release material using a knife coater or a roll coater, and then dried to form an adhesive layer. You may manufacture by laminating | stacking on the opposite surface of the surface of the base material which provided the layer. Such a production method is desirable because heating in the drying process for forming the pressure-sensitive adhesive layer does not damage the image receiving layer.

  The release material consists of plastic film such as polyethylene terephthalate film, foamed polyethylene terephthalate film, polypropylene film, paper such as coated paper, glassine paper, and other polyethylene laminated paper, silicone, fluorine, long chain alkyl, etc. What apply | coated the release agent can be used. The thickness of the release material is not particularly limited, but may be usually about 20 to 200 μm.

  The liquid toner for electrostatic charge development for forming an image layer applied to the image receiving sheet for developing electrostatic charge liquid of the present invention includes a colorant for visualization and a colorant for fixing the colorant to the image receiving sheet. A general resin in which a fixing resin and a charge adjusting agent for adjusting electrical characteristics are dispersed in a carrier liquid can be used.

  As the colorant, known pigments and dyes conventionally used as colorants for liquid toners for electrostatic charge development, such as Hansa Yellow, Benzidine Yellow, Benzidine Orange, First Red, Brilliant Carmine 3B, Copper Phthalocyanine Blue, Phthalocyanine green, spirit black, oil blue, alkali blue, rhodamine 6B, nigrosine, carbon black, dichloroquinacridone, isoindoline, titanium oxide, and the like can be used.

  As fixing resins, known resins conventionally used as fixing resins for liquid toners for electrostatic charge development, such as polystyrene, styrene / acrylic acid copolymers, polyacrylic acid, polyethylene, ethylene / (meth) acrylic. Thermoplastic resins such as acid copolymers, ethylene / (meth) acrylic acid ester copolymers, polypropylene, polyester, polyurethane, and polyamide can be used alone or in combination. Suitable fixing resins for the electrostatic charge liquid developing image-receiving sheet of the present invention include those containing an ethylene / (meth) acrylic acid copolymer.

  As the charge control agent, metal salts of resin acids such as naphthenic acid, octenoic acid, oleic acid and stearic acid, and metal salts of sulfosuccinic acid esters, which are conventionally used as charge control agents for liquid toners for electrostatic charge development. Nonionic surfactants such as polyoxyethylated alkylamines, fats and oils such as lecithin and linseed oil, polyvinylpyrrolidone, organic acid esters of polyhydric alcohols, and the like can be used.

  As the carrier liquid, a hydrocarbon solvent having a high insulating property and a low dielectric constant is used. Preferred are branched aliphatic hydrocarbons, and specific examples include Isopar G, Isopar L, Isopar M (a trade name of Exxon Chemical).

  Next, examples of the image receiving sheet for electrostatic charge liquid development and the image receiving label for electrostatic charge liquid development of the present invention will be described together with comparative examples, but the present invention is not limited to the following examples.

Example 1:
TMXDI block isocyanate cross-linking agent (Daiichi Kogyo Seiyaku Co., Ltd.) with respect to 100 parts by weight of an aqueous solution type ethylene / acrylic acid copolymer (manufactured by Sumitomo Seika Co., Ltd., trade name: Syxen A, solid content: 25.0% by weight) Product name: Elastron BN-08, solid content: 34.5% by weight, block agent type is oxime, dissociation temperature is 120 ° C, 8 parts by weight (solid content ratio), water / methyl A mixed solvent consisting of 100 parts by weight / 25 parts by weight of alcohol was added and diluted to prepare a coating liquid having a solid content of 9.5% by weight. This coating solution was applied using a gravure coater on the corona-treated surface of a corona-treated polyethylene terephthalate film (trade name: Lumirror # 50 T-60, manufactured by Toray Industries, Inc.) having a thickness of 50 μm, An image receiving sheet for developing an electrostatic charge liquid was manufactured by drying at 70 ° C. to form an image receiving layer having a thickness of 0.8 μm. The image receiving layer had a smooth surface state and excellent transparency after drying.
Next, on the surface of the release layer of a release material (product name: SP-8K Ao, thickness 90 μm) made by applying silicone to the surface of glassine paper, an acrylic adhesive (product made by Toyo Ink Manufacturing Co., Ltd., product) Name: Olivevine BPS-1109) A roll coater was used so that the pressure-sensitive adhesive obtained by adding 3 parts by weight of a crosslinking agent (manufactured by Nippon Polyurethane Industry Co., Ltd., trade name: Coronate L) to 100 parts by weight was 30 μm after drying. And then dried at 90 ° C. for 1 minute to form an adhesive layer. The pressure-sensitive adhesive layer on the release material was laminated on the surface opposite to the surface of the substrate on which the image receiving layer of the image receiving sheet for electrostatic charge liquid development was provided, thereby producing an image receiving label for electrostatic charge liquid development.

Example 2:
6 parts by weight of the TMXDI block isocyanate cross-linking agent used in Example 1 with respect to 100 parts by weight of an aqueous solution type ethylene / acrylic acid copolymer (manufactured by Michael Mann Co., Ltd., trade name: DP1000, solid content: 34.0% by weight) An electrostatic charge liquid developing image-receiving sheet and an electrostatic charge liquid developing image-receiving label were produced in the same manner as in Example 1 except that the parts were added (solid content ratio).

Example 3:
Except that 28 parts by weight of the TMXDI block isocyanate cross-linking agent used in Example 1 was added (solid content ratio) to 100 parts by weight of the aqueous solution type ethylene / acrylic acid copolymer used in Example 1. In the same manner as in Example 1, an image receiving sheet for developing electrostatic charge liquid and an image receiving label for developing electrostatic charge liquid were produced.

Example 4:
TMXDI block isocyanate used in Example 1 with respect to 100 parts by weight of a dispersion type ethylene / methacrylic acid copolymer (manufactured by Chuo Rika Kogyo Co., Ltd., trade name: Aquatex AC-3100, solid content 45.0% by weight) An electrostatic charge liquid developing image-receiving sheet and an electrostatic charge liquid developing image-receiving label were produced in the same manner as in Example 1 except that 10 parts by weight of a nart crosslinking agent was added (solid content ratio).

Comparative Example 1:
An electrostatic charge liquid developing image-receiving sheet and an electrostatic charge liquid developing image-receiving label were produced in the same manner as in Example 1 except that the TMXDI block isocyanate crosslinking agent was not added.

Comparative Example 2:
Instead of 8 parts by weight of TMXDI block isocyanate crosslinking agent, TDI block isocyanate crosslinking agent (tolylene diisocyanate block isocyanate crosslinking agent, manufactured by Daiichi Kogyo Seiyaku Co., Ltd., trade name: Elastron BN-44, solid content: 42. 0% by weight, the type of blocking agent is an oxime, and its dissociation temperature is 120 ° C.) Except that 10 parts by weight was added, the electrostatic charge liquid developing image-receiving sheet and the electrostatic charge liquid developing image-receiving sheet were the same as in Example 1. A label was manufactured.

Comparative Example 3:
Instead of 8 parts by weight of TMXDI block isocyanate crosslinker, MDI block isocyanate crosslinker (diphenylmethane diisocyanate block isocyanate crosslinker, manufactured by Daiichi Kogyo Seiyaku Co., Ltd., trade name: Elastron BN-04, solid content: 33. 5% by weight, the type of blocking agent is an alkylphenol and its dissociation temperature is 120 ° C.) Except for the addition of 8 parts by weight, the electrostatic charge liquid developing image-receiving sheet and the electrostatic charge liquid developing image-receiving sheet are the same as in Example 1. A label was manufactured.

(Evaluation of adhesion between substrate and image-receiving layer)
The image-receiving layer was evaluated by the X-cut tape method according to JIS K 5400 (1990). The case where the X-cut portion did not peel was 10 points, and the case where the X-cut portion was peeled larger than the X-cut portion was defined as 0 point. The results are shown in Table 1.

(Evaluation of adhesion between toner image and image receiving layer)
For each of the electrostatic charge liquid developing image-receiving sheets obtained in the examples and comparative examples, a black liquid toner for electrostatic charge development in which the fixing resin contains an ethylene / (meth) acrylic acid copolymer (manufactured by “Hewlett Packard” Electroink Mark 4.0-Black ") was used to perform solid printing on a printer using an electrostatic charge liquid development printing method (digital press" Press WS 4000 "manufactured by Hewlett Packard) (set transfer temperature: 100 ° C) .
After applying the Nichiban cellophane tape to the printed surface with a load of 20 N, the tape is peeled off manually, and the reflection density before and after the tape is applied is measured with a spectral color difference meter (Nippon Denshoku Handy Type spectral color difference meter “NF 777CE”), and the adhesion between the toner image and the image receiving layer was evaluated from the measured value by the residual density ratio shown in the following formula. The results are shown in Table 1.
Concentration residual ratio (%) = (reflection density after peeling / reflection density before application) × 100

As apparent from Table 1, only when the TMXDI block isocyanate cross-linking agent is used as a component of the coating liquid for forming the image receiving layer in the image receiving sheet for developing an electrostatic charge liquid, the substrate and the image receiving layer Both the adhesion and the adhesion between the toner image and the image receiving layer were good (Examples 1 to 4). When no crosslinking agent was added to the coating solution, the adhesion between the toner image and the image receiving layer was good, but the adhesion between the substrate and the image receiving layer was poor (Comparative Example 1). When a TDI block isocyanate crosslinker or an MDI block isocyanate crosslinker is used as a crosslinker, these crosslinkers are formed on the base material even though the dissociation temperatures of the TMXDI block isocyanate crosslinker and the block agent are the same. Both the adhesion between the toner image and the image receiving layer and the adhesion between the toner image and the image receiving layer were poor (Comparative Examples 2 and 3).
The reason why the above results are obtained is considered as follows. That is, the TMXDI block isocyanate cross-linking agent having two methyl groups at the α-position of the isocyanate group partially dissociates the blocking agent even at a temperature lower than the dissociation temperature of the blocking agent, and forms an image receiving layer. The isocyanate group activated by partial dissociation of the blocking agent at the drying temperature of the employed coating solution of 70 ° C. contributes to securing the adhesion between the substrate and the image receiving layer. The blocking agent does not dissociate, and the remaining blocking agent does not dissociate due to the transfer temperature at the time of printing of 100 ° C., thereby contributing to ensuring the adhesion between the toner image and the image receiving layer. It is considered that both the adhesion between the toner image and the image receiving layer and the adhesion between the toner image and the image receiving layer are improved. On the other hand, the TDI block isocyanate cross-linking agent and the MDI block isocyanate cross-linking agent do not dissociate the block agent at a low temperature such as 70 ° C., and thus cannot secure the adhesion between the substrate and the image receiving layer. On the other hand, the dissociation of the blocking agent occurred at a printing temperature of 100 ° C., which contributed to ensuring the adhesion between the toner image and the image receiving layer. Therefore, when the adhesion between the toner image and the image receiving layer was evaluated. It is considered that peeling occurred at the interface between the base material and the image receiving layer.

  The present invention provides an image receiving sheet for developing an electrostatic charge liquid and an image receiving label for developing an electrostatic charge liquid provided with an image receiving layer having excellent adhesion to a toner image as well as adhesion to a toner image by electrostatic charge liquid development. It has industrial applicability in terms of what it can do.

Claims (5)

  An image receiving layer is formed by applying a coating liquid containing an isocyanate cross-linking agent obtained by blocking ethylene / (meth) acrylic acid copolymer and tetramethylxylylene diisocyanate on at least one surface of a base material and drying it. An image receiving sheet for developing an electrostatic charge liquid.   2. The image receiving sheet for electrostatic charge liquid development according to claim 1, wherein the fixing resin of the liquid toner used for electrostatic charge liquid development contains an ethylene / (meth) acrylic acid copolymer.   3. The image receiving sheet for electrostatic charge liquid development according to claim 1, wherein the image receiving layer has a thickness of 0.1 to 5.0 [mu] m.   The image receiving sheet for developing an electrostatic charge liquid according to any one of claims 1 to 3, wherein the drying temperature of the coating solution applied to the substrate is 60 to 80 ° C.   A pressure-sensitive adhesive layer and a release material are laminated in this order on the surface opposite to the surface of the substrate on which the image-receiving layer of the image-receiving sheet for electrostatic charge liquid development according to any one of claims 1 to 4 is formed. An image receiving label for developing an electrostatic charge liquid.