JP2001121049A - Sheet coating apparatus and method for manufacturing sheet having thin resin layer by using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating apparatus which forms a thin resin coating layer on the surface of a substrate sheet, sheet-by-sheet, and to provide a method for producing a sheet having a thin resin layer by using the apparatus, sheet-by- sheet. SOLUTION: This coating apparatus of a sheet-by-sheet type mainly comprises (A) a coating member 1 which has a box-shape container 4 having a narrow- band-shape opening 8 formed at its under side, a coating-liquid-impregnable material 5 contained in the container and arranged so as to protrude from the opening, and a coating liquid supply mechanism 6 installed on the upper side of the container and (B) a substrate-sheet-fixing member 2 having substrate sheets 3 to be coated placed and fixed on an upper face 7 thereof and which transports the substrate sheets to just under the coating member 1. In this method for producing a sheet having a thin resin layer, a resin coating layer with a thickness of 5-50 μm is formed at least a part pf the substrate of sheet to be coated, sheet-by-sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel single-wafer coating apparatus and a method for producing a sheet having a thin resin layer using the same. More specifically, the present invention provides a coating apparatus for efficiently forming a thin resin coating layer having various functions on a surface of a base sheet in a single-wafer manner, and a base sheet having a desired shape by the coating apparatus. By using a resin-containing coating liquid, especially a resin-containing coating liquid containing a volatile organic solvent, a resin coating layer having a desired function is efficiently formed for each sheet to produce a sheet having a resin thin layer. To an industrially advantageous method.

[0002]

2. Description of the Related Art Conventionally, a resin coating layer is widely provided on the surface of a base sheet made of paper, plastic, metal, or the like for the purpose of imparting a desired function. For example, scratch resistance, stain resistance, ultraviolet ray blocking property, infrared ray blocking property, pressure sensitive recording property, heat sensitive recording property, antistatic property, antiblocking property, hydrophilicity, water repellency, peelability, adhesion, adhesion, etc. Various resin coating layers are provided for the purpose of imparting an ink, and for functioning as an ink receiving layer or various dye receiving layers. When these resin coating layers are formed using a resin-containing coating liquid, the coating method includes the material and size of the base sheet, the thickness of the coating layer, the viscosity of the coating liquid, and the type of solvent included. An advantageous coating method is appropriately selected and adopted from various coating methods depending on the conditions. Examples of the coating method include a bar coating method, a knife coating method, a roll coating method, a blade coating method, a die coating method, a comma coating method, a gravure printing method, a screen printing method, and an offset printing method. on the other hand,
As a coating style, a sheet-fed type in which a base sheet preliminarily cut into a desired shape is applied, and a winding type in which a long base sheet is coated and wound (to a desired shape after coating) Cutting), and in the case of a single wafer type, as a normal coating method,
Screen printing and offset printing are employed. However, when the resin-containing coating liquid contains a volatile organic solvent having a high evaporation rate as a main component of the diluent, such as toluene or methyl ethyl ketone, having a boiling point of about 120 ° C. or less, a sheet-fed screen printing method is used. When applying by offset printing or offset printing, printing becomes discontinuous, so the coating liquid dries between printing and causes clogging of the screen, or the coating liquid draws a thread on the roll surface And other problems tend to occur, resulting in poor productivity. Accordingly, an industrial method for efficiently forming a thin resin coating layer on a substrate sheet having a desired shape by using a resin-containing coating liquid diluted with a volatile organic solvent has been found. The fact is that they have not. By the way, in recent years, the demand for full-color printers has been increasing year by year, and as recording methods of this full-color printer, there are an electrophotographic method, an ink-jet method, a thermal transfer method, and the like. Attention has been paid to the thermal transfer method because of its low cost, low running cost, and no noise. Among various thermal transfer methods, a sublimable dye is used as a coloring material, and a thermal head that transfers the coloring material to a thermal transfer image receiving sheet using a thermal head that generates heat in accordance with a recording signal to obtain an image by heat-sensitive sublimation dye transfer. Recording methods are known. This recording method uses a dye as a coloring material and can obtain density gradation, so that the image is extremely high-definition, and since it has excellent halftone color reproducibility and gradation reproducibility, It is possible to form an image of image quality comparable to a silver halide photograph. In such a heat-sensitive sublimation dye transfer recording method (hereinafter, simply referred to as a sublimation heat transfer method),
A thermal transfer body (thermal transfer ribbon) having an ink layer including a sublimable dye layer is superimposed on a sublimable dye receiving layer of a thermal transfer image receiving sheet, and heat is applied to the thermal transfer body by a thermal head which generates heat according to a recording signal. Then, the sublimable dye of the ink layer is sublimated and transferred to the dye receiving layer, thereby forming an image. This sublimation type thermal transfer method has recently been
For example, an image taken by a digital video camera or the like is printed on a postcard-type image-receiving sheet, a sticker-type image-receiving sheet, a card-type image-receiving sheet, a business card-type image-receiving sheet, etc. by the above-described sublimation-type thermal transfer method,
It is used to create identification cards, ID cards, credit cards, face photographs of other cards, as well as composite photographs and commemorative photographs at amusement facilities such as amusement parks, museums, and aquariums. The thermal transfer image-receiving sheet used in the sublimation type thermal transfer system does not fuse or break on a thermal transfer body (thermal transfer ribbon), has excellent dyeability of a sublimable dye, and has excellent storage stability of a recorded image. And the like, so that a sublimation dye containing polyvinyl chloride and / or a vinyl chloride-vinyl acetate copolymer or the like on the surface of a base sheet is conventionally formed of a vinyl chloride resin or the like. Layered versions have been awarded. However, in recent years, vinyl chloride-based resins have been in the direction of not being used because they may cause environmental pollution when incinerated. Various non-halogen type thermal transfer image receiving sheets provided with a sublimable dye-receiving layer containing no dye have been developed. When a thermal transfer image-receiving sheet is prepared, a coating solution is prepared by adding a predetermined resin and various kinds of optional components to an easily volatile organic solvent, and the above-mentioned various coating methods are prepared by winding onto a substrate sheet surface. A method is used in which a sublimable dye-receiving layer having a thickness of about 1 to 20 μm is formed by using a method and then cut into a desired shape. However, when it is necessary to prepare a thermal transfer image-receiving sheet such as a postcard type, a sticker type, a card type, and a business card type by forming a sublimable dye-receiving layer in a single-sheet type, a coating solution for forming a receiving layer is used. However, as described above, it is extremely difficult to use a volatile organic solvent as a diluent. Recently, another function has been added to a card to which a certain function has already been added, such as a card surface having a built-in magnetic layer, optical recording layer, IC chip, and the like. Attention has been focused on providing a sublimable dye-receiving layer on a part of or the entire surface, printing a face photograph or the like by a sublimation-type thermal transfer system, and identifying whether or not the person is the card owner. In this case, it may be convenient to form the sublimable dye-receiving layer in a single-wafer manner.

[0003]

SUMMARY OF THE INVENTION Under the above circumstances, the present invention provides a coating apparatus for efficiently forming a thin resin coating layer having various functions on a substrate sheet surface in a single-wafer manner. And a resin coating layer having a desired function by using a resin-containing coating liquid, particularly a resin-containing coating liquid containing a volatile organic solvent, for each base sheet having a desired shape by the coating apparatus. The purpose of the present invention is to provide an industrially advantageous method for efficiently forming a sheet and producing a sheet having a thin resin layer.

[0004]

Means for Solving the Problems The inventor of the present invention has conducted intensive studies to achieve the above object, and as a result, a coating member having a specific structure and function and a member for fixing a base sheet have been mainly constituted. The device to be used can be adapted for the purpose as a single-wafer coating device, and using the above-described device, for each substrate sheet to be coated, disposed on the lower surface of the coating member on the surface thereof It has been found that a thin resin coating layer can be formed efficiently by contacting the resin-containing coating liquid impregnating material, and the present invention has been completed based on this finding. That is, the present invention provides (1) (A) a box-shaped container having a narrow band-shaped opening on the lower surface, and a resin-containing coating accommodated in the container and disposed so as to protrude from the opening. A vertically movable coating member having a liquid impregnating material and a resin-containing coating liquid supply mechanism provided on the upper surface of the box-shaped container, and (B) placing a substrate sheet to be coated on the upper surface To transport the coated base sheet directly below the coating member to fix and apply the resin-containing coating liquid to the surface thereof, and to carry the coated base sheet into the stocker. (2) Item (1), wherein the main component is a base sheet fixing member that can be moved in the horizontal direction and the base sheet can be freely attached and detached. Using the single-wafer coating apparatus as described, for each coated substrate sheet having a desired shape, a box of a coating member is provided on the surface thereof. The lower surface of the resin-containing coating liquid impregnating material provided at the opening on the lower surface of the container is brought into contact with the lower surface to form a resin coating layer having a thickness of 0.5 to 50 μm on a part or the entire surface of the substrate sheet. (3) The method for producing a sheet having a thin resin layer, wherein (3) the resin-containing coating liquid contains a volatile organic solvent as a main component of a diluent.
(2) The method for producing a sheet having a resin thin layer according to the above (2),
(4) The method for producing a sheet having a resin thin layer according to (2) or (3), wherein the base sheet is mainly made of paper or a plastic sheet, and (5) the resin coating layer is The second (2), (3) or
(4) A method for producing a sheet having a thin resin layer according to the above (4).

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The coating apparatus of the present invention uses a resin-containing coating liquid, particularly a resin-containing coating liquid using a volatile organic solvent as a diluent, and forms a sheet-like resin on a substrate sheet surface. An apparatus for forming a thin coating layer, comprising: (A) a coating member movable in a vertical direction; and (B) a base sheet movable in a horizontal direction and capable of freely attaching and detaching the base sheet. The fixing member is a main component. Next, the coating apparatus of the present invention will be described with reference to the accompanying drawings. FIG.
FIG. 1 is a schematic perspective view of an example of a single-wafer coating apparatus of the present invention, and FIG. 2 is a diagram illustrating a material for impregnating a resin-containing coating liquid in the above-described coating apparatus (hereinafter, simply referred to as a material for impregnating a coating liquid). FIG. 3 is a perspective view showing a configuration of an example). As shown in FIG. 1, a coating member 1 in a single-wafer coating apparatus of the present invention includes a box-shaped container 4 having a narrow band-shaped opening 8 on the lower surface, a container 4 contained in the container 4, and The coating liquid impregnating material 5 disposed to protrude from the portion 8 and a resin-containing coating liquid supply mechanism provided on the upper surface of the box-shaped container 4 (hereinafter, may be simply referred to as a coating liquid supply mechanism). And 6) and is movable in the vertical direction. The coating liquid impregnating material 5 can efficiently impregnate the resin-containing coating liquid supplied manually or automatically from the coating liquid supply mechanism 6 and satisfactorily adheres to the surface of the base material sheet contacting the lower surface thereof. It is important to be able to apply. Therefore, as the coating liquid impregnating material 5, for example, as shown in FIG. 2, a coating material made of felt on the inside and a nonwoven fabric on the outside is provided around a support 9 made of a metal plate such as an aluminum plate. A structure wound with the working liquid impregnable laminated material 10 is preferable. And this coating material impregnation material 5
The lower surface 11 of the coating liquid impregnating material 5 that is accommodated in the box-shaped container 4 is disposed so as to protrude from the opening 8 of the box-shaped container 4. The material of the felt and the nonwoven fabric is not particularly limited as long as it has resistance to the resin coating solution, and materials made of various fibers can be used. A box-shaped container 4 having a narrow band-shaped opening 8 on the lower surface.
From the viewpoint of lightness, corrosion resistance, workability, mechanical properties, etc., those made of aluminum or aluminum alloy are preferably used. The shape and size of the opening 8 are appropriately determined according to the shape and size of the resin coating layer to be formed on the surface of the base sheet.
On the other hand, the base material sheet fixing member 2 in the single-wafer coating apparatus of the present invention mounts the base material sheet 3 fed from the base material sheet supply mechanism (not shown) on the upper surface 7. In order to fix and apply the resin-containing coating liquid on the surface thereof, the substrate sheet 3 to be coated is conveyed directly below the coating member 1 and the coated substrate sheet is stored in a stocker (FIG. Not shown)
It has a function to carry the substrate sheet, and can be moved in the horizontal direction, and the base sheet can be freely attached and detached. In order to fix the substrate sheet 3 to be coated on the upper surface 7 of the member 2 for fixing the base sheet, it is preferable to reduce the pressure of the fixing member 2 and fix it by suction. In this case,
In order to transport and store the coated base sheet in the stocker, the coated base sheet may be released from the fixing member 2 by returning to normal pressure. The base sheet fixing member 2 may be configured such that one base sheet 3 to be coated may be placed and fixed on the upper surface 7 or a plurality of base sheets 3 may be placed and fixed at appropriate intervals. Good. The material of the base sheet fixing member 2 is not particularly limited, but for example, a porous material such as a sintered metal can be used.

[0006] The resin coating liquid used in the single-wafer coating apparatus of the present invention is not particularly limited, and is appropriately selected according to the intended function of the thin resin coating layer to be formed, as described later. In particular, it is advantageous to use a diluent whose main component is a volatile organic solvent having a boiling point of about 120 ° C. or lower in the apparatus of the present invention. The substrate sheet to which the single-wafer coating apparatus of the present invention is applied is not particularly limited, and various materials and sizes as described below, depending on the intended use of the sheet having the obtained resin thin layer, Alternatively, a material having a function can be used. The method for producing a sheet having a resin thin layer according to the present invention uses the above-described single-wafer coating apparatus, and forms a box-shaped coating member on the surface of each coated substrate sheet having a desired shape. The lower surface of the coating liquid impregnating material provided in the opening on the lower surface of the container is brought into contact with the lower surface of the material, and a part or the entire surface of the substrate sheet has a thickness of 0.5 to 50 μm,
A preferred method is to form a resin coating layer of 1 to 20 μm. The substrate sheet used in the method of the present invention is not particularly limited, and can be appropriately selected according to the intended use of the sheet having the obtained thin resin layer. As the material, for example, paper base materials such as high-quality paper, coated paper, art paper, cast coated paper, laminated paper obtained by laminating a thermoplastic resin such as polyethylene to these paper base materials, polyolefins such as polypropylene, polyethylene terephthalate Polyester, polystyrene, polyamide, polymethacrylate, such as
Examples thereof include a plastic sheet such as polycarbonate, a metal sheet such as aluminum, and a multilayer laminated sheet obtained by laminating two or more kinds of these materials by a known method such as a dry lamination method, a wet lamination method, and a melt lamination method. Among these, a single-layer sheet or a laminated sheet containing paper or plastic as a main constituent material is particularly preferable. When the coated surface of the base sheet is made of plastic, in order to improve the adhesiveness with the resin coating layer to be formed, if necessary, the coated surface is subjected to a surface treatment such as an oxidation method or an unevenness method, or a primer. Layers can be applied. Examples of the oxidation method include corona discharge treatment, chromic acid treatment (wet method), flame treatment, hot air treatment, ozone / ultraviolet irradiation treatment, and examples of the unevenness method include a sand blast method and a solvent treatment method. Is mentioned. These surface treatment methods are appropriately selected according to the type of the base sheet, but generally, the corona discharge treatment method is preferably used from the viewpoints of effects and operability. On the other hand, the primer used for forming the primer layer is not particularly limited, and conventionally known primers such as acrylic, polyester, polyurethane, silicone, and rubber primers can be used.
Acrylic and polyester primers are preferred in terms of durability and adhesion. The thickness of the primer layer is preferably in the range of 0.1 to 10 μm from the viewpoint of uniform coating properties and adhesion. The size and thickness of the base sheet are not particularly limited and can be appropriately selected depending on the purpose of use of the base sheet having the obtained resin thin layer, and as the standardized size, for example, a postcard size, There are card size and business card size. The thickness is appropriately selected usually in the range of 50 to 800 μm.

The method of the present invention is particularly advantageous when applied to a substrate sheet having a specific function. For example, a resin coating layer can be efficiently formed in a single-wafer system on a magnetic substrate, an optical recording layer, a card base having a built-in IC chip, and the like. In the method of the present invention, a resin coating layer may be formed on a part of the surface of the base sheet, or a resin coating layer may be formed on the entire surface. The resin-containing coating liquid used in the method of the present invention contains an organic solvent as a diluent, a resin component and various additive components used as desired, and the types of the resin component and various additive components are not particularly limited. Instead, it can be appropriately selected according to the intended function of the formed resin coating layer. As the function of the resin coating layer, for example, scratch resistance, stain resistance,
UV-blocking properties, infrared-blocking properties, pressure-sensitive recording properties, heat-sensitive recording properties, antistatic properties, anti-blocking properties, hydrophilicity, hydrophobicity, releasability, adhesion, adhesiveness, etc. Functions as various dye receiving layers can be given. Examples of the resin component include various thermoplastic resins and thermosetting resins, and resins that are cured by ionizing radiation such as ultraviolet rays and electron beams. Further, as various additive components, for example, antioxidants, heat stabilizers, ultraviolet absorbers, light stabilizers, infrared absorbers, color developers, color formers, antistatic agents, antiblocking agents, catalysts, polymerization initiators, Crosslinking agent, surfactant, silicone oil, release agent, plasticizer,
Fillers, colorants, flame retardants, and the like are included. On the other hand, the organic solvent as a diluent is not particularly limited as long as it has volatility and has little effect on the human body and the environment, and various solvents such as aliphatic hydrocarbons and alicyclic hydrocarbons are available. One or more kinds can be appropriately selected from aromatic hydrocarbons, ketones, esters, alcohols, amides, sulfoxides and the like. In the method of the present invention, particularly when using a resin-containing coating liquid containing a volatile organic solvent having a fast evaporation rate and a boiling point of about 120 ° C. or less as a main component of a diluent, the effects of the present invention are suitably exerted. This is advantageous. The solid content concentration in this resin-containing coating liquid may be selected so that the coating liquid has good coating properties, and is not particularly limited, but is usually 5 to 30.
It is selected in the range of weight%.

In the method of the present invention, the coating solution impregnated in the box-shaped container of the single-wafer coating apparatus is coated with the resin-containing coating solution provided on the upper surface of the container. It is supplied manually or automatically by a working liquid supply mechanism to impregnate it. Then, the lower surface of the coating liquid impregnating material impregnated with the resin-containing coating liquid is brought into contact with the surface of each substrate sheet to be coated, whereby the surface of the substrate sheet is contacted. To form a coating layer on a desired portion or on the entire surface. As a method of contacting the lower surface of the coating liquid impregnating material to the surface of each coated base sheet, for example,
The following method can be used. First, on the upper surface of the base material sheet fixing member, the base material sheet to be coated sent out from the base material sheet supply mechanism to be coated, so that the coating surface is facing up, for example, one by a pressure reduction method or an appropriate interval Open and fix multiple sheets. Next, the base sheet fixing member is moved in the horizontal direction, and the base sheet is conveyed to the coating member. When the base sheet to be coated comes to a predetermined position below the coating liquid impregnating material disposed at the opening of the lower surface of the box-shaped container of the coating member, the coating member is lowered. Then, while the lower surface of the coating liquid impregnating material is in contact with the surface of the substrate sheet to be coated, the base sheet fixing member is continuously moved in the horizontal direction, and the resin-containing coating liquid is applied. . After the coating of the base sheet is completed, the coating member is moved upward. When multiple substrates to be coated are placed and fixed,
The above operation is repeated for each substrate sheet to be coated. Then, while the coated base sheet is fixed and the base sheet fixing member is continuously moved, the base sheet fixing member is returned to normal pressure, and the coated base sheet is detached.
Store in stocker. Thus, the desired resin coating layer is formed by subjecting the substrate sheet coated with the resin-containing coating liquid to air drying, drying treatment by heating or warm air, or the like. According to the method of the present invention, the resin coating layer has a thickness of 0.5 to 50 μm, preferably 1 to 20 μm.
It is formed in the range of m, but its thickness can be appropriately selected within the above range according to the intended function of the resin coating layer. The method of the present invention is sometimes advantageously applied to form a resin coating layer as a sublimable dye receiving layer in a sublimation type thermal transfer system. In this case, as the resin-containing coating liquid, a conventionally known liquid for forming a sublimable dye-receiving layer can be used. Examples of the resin component used in the resin-containing coating liquid include polyvinyl acetal, polyvinyl acetate, polyester resins such as polyethylene terephthalate and polybutylene terephthalate, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, and polyacrylic acid. Acrylate resins such as esters and polymethacrylates, cellulose derivatives, polyvinyl alcohol, polystyrene resins, polyamides, polyetherimides, polyethylene oxides, polyvinyl ethers, polyacrylonitriles, α-
Copolymers of olefins and other vinyl monomers, ionomer resins, epoxy resins, polyurethanes, and the like. These may be used alone or in combination of two or more. Further, as an optional component used as desired, for example, when a crosslinkable resin is used, various crosslinkers and catalysts are preferably used, and further, generally, the lubricity of the sublimable dye receiving layer is increased, and thermal transfer is performed. A release agent for preventing fusion between a thermal transfer image receiving sheet and a thermal transfer body (thermal transfer ribbon) during recording, a compound for improving light resistance, dark fading resistance, dyeing properties, etc., an ultraviolet absorber and a light stabilizer, Antioxidants, surfactants, antistatic agents, white inorganic fillers such as silica, titanium oxide, and calcium carbonate, fluorescent dyes, plasticizers, and the like can be used. The organic solvent is not particularly limited, but a volatile organic solvent such as a mixture of toluene and methyl ethyl ketone is preferably used. The thickness of the sublimable dye receiving layer is usually selected in the range of 0.5 to 20 μm.

[0009]

Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. Example 1 (1) Preparation of Coating Solution for Forming Dye Receptive Layer Toluene / methyl ethyl ketone mixture (weight ratio 1/3)
88 parts by weight, polyvinyl acetal resin [manufactured by Sekisui Chemical Co., Ltd., trade name: KS-1] 8 parts by weight, vinyl acetate resin [manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name: PV-500] 2 parts by weight, polymer type [2-Hydroxy-
4- (methacryloyloxyethoxy) benzophenone] -methyl methacrylate copolymer [manufactured by BS F Co., Ltd., trade name: UVA633L] 0.8 parts by weight and alcohol-modified silicone oil [Toray Silicone Co., trade name] : SF8427], to prepare a coating solution for forming a dye receiving layer. (2) Formation of Dye Receiving Layer A 175 μm-thick polyethylene terephthalate film (trade name: Diafoil T series manufactured by Mitsubishi Chemical Polyester Co., Ltd.) whose surface is subjected to an easy adhesion treatment is cut,
Ten pieces of 148 × 100 mm base sheet, which is the size of a postcard, were prepared. Assuming that the shorter edge portion of each base material sheet is located at the top, a rectangular region corresponding to ３ of the entire area is formed from the surface on one side as shown in FIG.
The coating liquid prepared in the above (1) was applied in a single-wafer manner by the following method using a coating apparatus shown in (1) to form a dye receiving layer. First, the coating liquid prepared in the above (1) is sufficiently impregnated into the coating liquid impregnating material 5 of the coating member 1, and then the base sheet 3 is coated on the upper surface 7 of the base sheet fixing member 2. Was fixed by suction using a vacuum method, and then the base sheet fixing member 2 was moved in the horizontal direction, and the base sheet 3 was conveyed to the coating member 1. And the base material sheet 3 to be coated is
When the coating member 1 is lowered to a predetermined position below the coating liquid impregnating material 5, the coating member 1 is lowered, and the lower surface of the coating liquid impregnating material 5 is coated on the base material sheet 3. In the state where the member 2 was kept in contact with the surface, the base sheet fixing member 2 was continuously moved in the horizontal direction to apply the resin-containing coating liquid. After the coating of the base sheet is completed, the coating member 1 is moved upward, and while the coated base sheet is fixed, the base sheet fixing member 2 is continuously moved to a predetermined position. The substrate sheet fixing member 2 was returned to normal pressure, and the coated substrate sheet was released. The remaining nine base sheets were also coated in the same manner as described above. Next, each of the coated base sheets was dried at 80 ° C. to form a dye-receiving layer, thereby preparing a thermal transfer image-receiving sheet. As a result, each of the base sheets had 1 /
In the rectangular region No. 3, a uniform and flat dye receiving layer having a thickness of about 2 μm was formed, and its variation was hardly recognized. (3) Image formation by sublimation transfer Using a commercially available sublimation type printer [product name: PR-5200], the face photograph pattern based on the image data is converted into the above-mentioned (2).
When printed on the ten thermal transfer image-receiving sheets prepared in the above step, this face photograph pattern had good image quality comparable to a normal color photograph. Comparative Example 1 The same region of the same ten base sheets as used in Example 1 was continuously coated in a single-wafer manner by the screen printing method using the coating liquid prepared in Example 1. Although the first one had a good coating layer,
After the first sheet, a uniform coating layer was not obtained due to clogging of the screen, and a practically acceptable dye receiving layer was not formed. Example 2 (1) Formation of Dye Receiving Layer Ten polyethylene terephthalate card base materials having a magnetic layer and a concealing layer provided on the back surface, a thickness of 250 μm, and a size of 85 × 54 mm were prepared. Prepared. A dye receiving layer was formed on the entire surface of the surface opposite to the concealing layer of each card substrate in the same manner as in Example 1 by using the coating liquid prepared in Example 1, and 10 thermal transfer image receiving card substrates were formed. Produced. As a result, a uniform and flat dye-receiving layer having a thickness of about 2 μm was formed on the entire surface of one side of each card substrate, and the variation was hardly recognized. (2) Image formation by sublimation transfer Sublimation type card printer manufactured by Niska Co., Ltd. [Product name: PR
-5200], a face photograph pattern based on the image data was printed on the 10 thermal transfer image receiving card base materials produced in the above (1) to produce a magnetic card with a face photograph. The face photographic pattern had good image quality comparable to that of a normal color photograph.

[0010]

The single-wafer coating apparatus of the present invention is an apparatus for efficiently forming a thin resin coating layer having various functions on the surface of a substrate sheet in a single-wafer manner. Thereby, a resin coating layer having a desired function is efficiently formed using a resin-containing coating liquid, particularly a resin-containing coating liquid containing a volatile organic solvent, for each base sheet having a desired shape, Sheets with thin layers can be produced industrially advantageously.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of an example of a single-wafer coating apparatus according to the present invention.

FIG. 2 is a perspective view showing a configuration of one example of a resin-containing coating liquid impregnating material in the coating apparatus of FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 coating member 2 base sheet fixing member 3 substrate sheet to be coated 4 box-shaped container 5 resin-containing coating liquid impregnating material 6 resin-containing coating liquid supply mechanism 7 upper surface of base sheet fixing member 8 box Opening of container 9 Support 10 Coating liquid impregnable laminated material 11 Lower surface of coating liquid impregnating material

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H111 AA01 AA27 CA03 CA23 CA25 DA01 DA02 4D075 AC47 AC71 AC84 AC88 CA02 CA12 CA22 CA25 CA32 CA34 CA36 DA06 DB18 DB31 EA07 4F040 AA02 AB20 AC01 BA02 CA01 CA05 CA07 CA11 CA17

Claims (5)

[Claims] (A) A box-shaped container having a narrow band-shaped opening on the lower surface, and a resin-containing coating liquid impregnating material accommodated in the container and disposed so as to protrude from the opening. A vertically movable coating member having a resin-containing coating liquid supply mechanism provided on the upper surface of the box-shaped container, and (B) a substrate sheet to be coated placed and fixed on the upper surface. In order to apply the resin-containing coating liquid on the surface, the base material sheet to be coated is conveyed directly below the coating member, and the coated base sheet is carried into a stocker in a horizontal direction. Can be moved,
A single-wafer coating apparatus characterized in that a base sheet fixing member to which a base sheet can be freely attached and detached is used as a main component. 2. Using the single-wafer coating apparatus according to claim 1, each of the coated base material sheets having a desired shape is disposed on the surface thereof at the opening of the lower surface of the box-shaped container of the coating member. The lower surface of the provided resin-containing coating liquid impregnating material is brought into contact with the substrate, and a resin coating layer having a thickness of 0.5 to 50 μm is formed on a part or the entire surface of the base sheet. A method for producing a sheet having a layer. 3. The method for producing a sheet having a resin thin layer according to claim 2, wherein the resin-containing coating liquid contains a volatile organic solvent as a main component of the diluent. 4. The method for producing a sheet having a resin thin layer according to claim 2, wherein the base sheet is mainly composed of paper or a plastic sheet. 5. The method for producing a sheet having a thin resin layer according to claim 2, wherein the resin coating layer is a sublimable dye receiving layer.