JP3695609B2 - Thermal transfer image receiving sheet - Google Patents

Description

【００４４】
【効果】
以上の如き本発明によれば、前記の如き熱転写受像シートにおいて、離型シートとして、表面無処理のポリオレフィン樹脂フイルムを使用することによって、熱転写プリンタにおいて画像形成する際に、ハーフカット領域の剥離がなく、そのうえ画像形成後にはハーフカット領域の剥離が容易である熱転写受像シートを提供することができる。
【図面の簡単な説明】
【図１】 参考例の熱転写受像シートの断面を図解的に説明する図。
【図２】 参考例の熱転写受像シートの断面を図解的に説明する図。
【図３】 参考例の熱転写受像シートの断面を図解的に説明する図。
【図４】 本発明の熱転写受像シートの断面を図解的に説明する図。
【図５】 従来技術のハーフカット熱転写受像シートを図解的に説明する図。
【図６】 図５のＸ−Ｘ拡大断面図。
【図７】 剥離した画像を他物品に貼着した状態を説明する図。
１：巻芯
２：画像
３：ハーフカットライン
４：粘着剤層
５：離型シート
６：支持体（発泡樹脂フイルム）
７：染料受容層
８：未発泡樹脂フイルム
９：発泡樹脂フイルム
１０：接着剤層
１１：物品
１２：検知マーク[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a thermal transfer image-receiving sheet provided with a dye-receiving layer for receiving a sublimation dye transferred from a sublimation thermal transfer sheet, and more specifically, a thermal transfer image-receiving image that can be widely used in various color printer fields such as a video printer. Regarding the sheet.
[0002]
[Prior art]
2. Description of the Related Art In recent years, image forming systems represented by photographing techniques and computer graphics have made remarkable progress. Along with this, the need for color hard copies of images has further increased.
Among various hard copy systems, a thermal transfer image receiving sheet is superposed on a thermal transfer sheet using a sublimation dye as a recording agent, and the recording image is transferred by transferring the dye to the thermal transfer image receiving sheet by heating with a thermal head according to the recording signal. The obtaining method is very attracting attention because an image comparable to a silver salt photograph can be obtained because the formed image is excellent in transparency, intermediate color gradation reproducibility and color reproducibility.
[0003]
As one application of the thermal transfer image-receiving sheet used in such a sublimation transfer method, a dye-receiving layer on which an image is formed is formed to be peelable on the surface of a release paper (or a release sheet), and the desired dye-receiving layer is formed on the dye-receiving layer. After the above image is formed, the dye receiving layer is peeled off and attached to an arbitrary article.
5 and 6 show an example of a conventional thermal transfer image-receiving sheet used for the above-mentioned applications, and FIG. 6 is an XX enlarged sectional view of FIG. The thermal transfer image receiving sheet shown in FIG. 5 is a long type having a predetermined width, and both ends thereof are wound around a core 1 and attached to a printer to advance in the direction of the arrow or in the opposite direction. A thermal transfer sheet is superimposed on the surface, and the thermal transfer sheet is heated in an image form from the back by a thermal head or the like to transfer the dye of the thermal transfer sheet to the surface of the thermal transfer image receiving sheet, and an arbitrary image is formed on the surface of the thermal transfer image receiving sheet. 2 is formed.
[0004]
The thermal transfer image receiving sheet is half-cut into an arbitrary shape as shown in FIG. 5, and the details of the cross section are shown in FIG. The image 2 formed in the region partitioned by the half-cut line 3, for example, a facial photographic image, is peeled from the release paper 5 along with the adhesive layer 4 along the half-cut line 3, as shown in FIG. As shown in FIG. 7, the peeled image-forming dye receiving layer portion A is attached to an arbitrary article 11, for example, a notebook, a notebook, a bag, or other articles. In addition, the code | symbol 12 in FIG. 5 shows a detection mark.
[0005]
As described above, the conventional half-cut thermal transfer image-receiving sheet is formed on the release surface of the release paper or release sheet 5 by using a foamed polyethylene terephthalate (PET) film or YUPO made of a support 6 for the adhesive layer 4 and the dye receiving layer. It is formed from a synthetic paper known by name and a dye-dyeable resin layer 7 (dye-receiving layer) formed on the support 6.
Further, the applicant of the present application has proposed a thermal transfer image-receiving sheet as described above in which an image color density is improved by using a laminate of an unfoamed resin film and a foamed resin film as the support. .
[0006]
[Problems to be solved by the invention]
When an image is formed using the thermal transfer image receiving sheet as in the above prior art, both ends of the thermal transfer image receiving sheet as shown in FIG. 5 are wound around the winding core 1, and in the image forming printer, a platen roll is firstly used. As described above, the thermal transfer image receiving sheet is conveyed through several rollers, and the image forming portion is partially heated by a thermal head or the like to form a desired image. In such image formation, when the thermal transfer image receiving sheet is curved and conveyed by a part such as a roll, the end of the area surrounded by the half cut line 3 is turned over, and the half cut area is peeled off from the end, and the peel area As a result of the pressure-sensitive adhesive layer being formed on the back surface of the sheet, there is a problem of poor conveyance of the thermal transfer image-receiving sheet in the printer, and the image formation is often interrupted.
[0007]
Such a problem can be solved by improving the adhesive strength of the pressure-sensitive adhesive layer, but if the adhesive strength of the pressure-sensitive adhesive layer is improved, it becomes difficult to peel off when the half-cut region after image formation is peeled off. There arises a problem that a part of the peeling region is torn at the time of peeling.
Accordingly, it is an object of the present invention to provide a thermal transfer in which the half-cut area is not peeled off when an image is formed on the half-cut thermal transfer image-receiving sheet in the thermal transfer printer and the half-cut area is easily peeled after the image is formed. It is to provide an image receiving sheet.
[0008]
[Means for Solving the Problems]
The above object is achieved by the present invention described below. That is, the present invention relates to a thermal transfer image receptor comprising at least a release sheet, an adhesive layer formed on the release surface, a support that can be peeled off together with the adhesive layer, and a dye receiving layer formed thereon. In the sheet, the release sheet is made of an untreated polyolefin resin film, and the other laminated parts except the release sheet are half-cut into any shape by a half-cut line (however, the half-cut line is Except in the case of discontinuity and the case where the half-cut line consists of a shallow part and a deep part), the above-mentioned peelable support is an unfoamed resin film in contact with the adhesive layer and a foamed resin film in contact with the dye-receiving layer A thermal transfer image-receiving sheet. An intermediate layer (not shown) can be provided between the dye receiving layer and the support, if necessary. In particular, in the present invention, in the case of a thermal transfer image receiving sheet in which the other laminated portion excluding the release sheet is half-cut into an arbitrary shape, the surface-untreated polyolefin resin film is a stretched or unstretched polypropylene resin film. Is most effective.
[0009]
According to the present invention, in the thermal transfer image receiving sheet as described above, by using a polyolefin resin film having no surface treatment as at least a release sheet, when an image is formed in a thermal transfer printer, there is no peeling of a half-cut region, In addition, it is possible to provide a thermal transfer image-receiving sheet in which half-cut areas can be easily peeled after image formation.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in more detail with reference to preferred embodiments.
As shown in the enlarged sectional view of FIG. 1, the basic form of the thermal transfer image receiving sheet of the reference example is the release sheet 5, the adhesive layer 4 formed on the release surface, and the adhesive layer 4. a peelable support 6 consists on the formed dye-receiving layer 7 for the above release sheet, ing a polyolefin resin film of the surface untreated.
[0011]
Another example of a thermal transfer image-receiving sheet of the implementation form of the reference example, as shown the cross-section illustrated in Figure 2, other lamination portion excluding the release sheet 5 in the thermal transfer image-receiving sheet, the half-cut line 3 in that has been half cut into any shape.
Examples of the thermal transfer image-receiving sheet of another implementation form of the reference example, the peel strength by JIS P8139 with a polyolefin resin film of the surface untreated and the adhesive layer is that is adjusted to 40～900G.
[0012]
Examples of the thermal transfer image-receiving sheet of the embodiment of the reference example, a polyolefin resin film of the surface-free treatment, Ru polypropylene resin film der stretching or unstretched.
An example of the thermal transfer image receiving sheet of the embodiment of the reference example is an unfoamed resin film in which the support (8 + 9 + 10) is in contact with the pressure-sensitive adhesive layer 4 in the thermal transfer image receiving sheet, as shown in an enlarged sectional view in FIG. ing from 8 and a laminate of a foamed resin film 9 in contact with the dye-receiving layer 7.
[0013]
Examples of the thermal transfer image-receiving sheet of the implementation form of the present invention, as shown the cross-section illustrated in Figure 4, other lamination portion excluding the release sheet 5 in the thermal transfer image-receiving sheet, optionally the half-cut line 3 It is characterized by being half-cut into a shape.
[0014]
The release sheet 5 used in the present invention, a polyolefin resin film of the surface untreated, for example, polyethylene film, a port descriptor b pyrene film, particularly polypropylene resin film stretching or no stretching is preferable. According to the knowledge of the present inventor, in particular, when a thermal transfer image-receiving sheet is formed on the surface of a polypropylene resin film that is stretched or non-stretched without performing a release treatment as in the prior art, the type of pressure-sensitive adhesive is appropriate. The peel strength according to JIS P8139 between the release sheet and the pressure-sensitive adhesive layer can be easily adjusted to a range of about 40 to 900 g, preferably about 100 to 700 g. In addition, after the image formation, the half-cut region can be easily peeled off without tearing. The release sheet 5 has a thickness of about 20 to 100 μm, preferably about 35 to 75 μm. Such a stretched or non-stretched polypropylene resin film can be obtained from the market as, for example, Toyobo Pyrene or Toray Trefan.
[0015]
The pressure-sensitive adhesive 4 used in the present invention may be any conventionally known solvent-based or water-based pressure-sensitive adhesive, and the coating amount on the release sheet is generally about 8 to 30 g / m ² (solid content). As the adhesive strength, in the method of JIS P8139, an adhesive showing an adhesive strength in the range of 50 to 900 g, preferably in the range of 100 to 750 g / m ² is preferable.
The pressure-sensitive adhesive as described above is preferably used by selecting the peel strength within the above range when forming the pressure-sensitive adhesive layer 4 on the release sheet 6.
[0016]
The unfoamed resin film 8 useful in the present invention is an unfoamed film such as polyethylene terephthalate, polyethylene, or polypropylene, and any conventionally known unfoamed resin film can be used in the present invention and has a thickness of about 10 to 50 μm. The range of is preferable. If the film thickness is too thin, there will be no so-called stiffness, and the resulting thermal transfer image-receiving sheet will curl due to thermal shrinkage when forming an image with a thermal head or the like, while if it is too thick, curl will occur due to heat set when forming an image with a thermal head or the like. It becomes easy to do. As a preferred example, Lumirror S-10 (thickness: 12 μm) manufactured by Toray can be mentioned, for example.
[0017]
As the foamed resin film 9 useful in the present invention, a conventionally known foamed resin film such as a foamed polypropylene film or a foamed polyethylene terephthalate film can be used, and a foamed polypropylene film is particularly preferred in terms of cushioning properties. The thickness of these films is preferably about 30 to 60 μm. Preferred examples include Toyopearl P4255 (thickness 35 μm) and Toyopearl P4256 (thickness 60 μm) manufactured by Toyobo.
[0018]
As a method for laminating the non-foamed resin film 8 and the foamed resin film 9, known laminating methods such as dry lamination, non-solvent (hot melt) lamination, EC lamination method and the like can be used. A preferred method is dry lamination. And a non-solvent lamination method. Examples of the adhesive suitable for the non-solvent lamination method include Takenate A-720L manufactured by Takeda Pharmaceutical, and examples of the adhesive suitable for dry lamination include Takelac A969 / Takenate A- manufactured by Takeda Pharmaceutical. 5 (3/1). About in the solid content of the amount of these adhesives 1-8 g / m ^2, preferably in the range from 2 to 6 g / m ^2.
[0019]
In the thermal transfer image-receiving sheet of the reference example illustrated in FIGS. 1 and 2, the dye-receiving layer may be formed in advance on the support 6, or the support 6 and the release sheet 5 are laminated. You may provide in the surface of the foamed resin film 6 which is a support body later.
Further, in the thermal transfer image-receiving sheet you illustrated in Figures 3 and 4, the formation of the dye-receiving layer may be provided on the foamed resin film 9 before laminating the unfoamed resin film 8 and the foamed resin film 9 Alternatively, it may be provided on the surface of the foamed resin film 9 of the support constituted by laminating the foamed resin film 9 and the unfoamed resin film 8, or the support (8 + 9 + 10) and the release paper or release sheet 5 may be provided. May be provided on the surface of the foamed resin film 9 of the support. This support may be a foamed resin film, for example, a foamed polyethylene terephthalate film or a foamed polypropylene film.
[0020]
Examples of the material for forming the dye receiving layer include polyolefin resins such as polypropylene, polyvinyl chloride / vinyl acetate copolymers, ethylene / vinyl acetate copolymers, halogenated polymers such as polyvinylidene chloride, and polyacetic acid. Polyester resins such as vinyl and polyacrylic esters, polystyrene resins, polyamide resins, copolymers of olefins such as ethylene and propyne and other vinyl monomers, cellulose resins such as ionomers and cellulose diacetates, polycarbonates, etc. Of these, polyester resins, vinyl chloride / vinyl acetate copolymers, and mixtures thereof are particularly preferable.
[0021]
When forming an image, a release agent is mixed with the dye-receiving layer resin for the purpose of preventing fusion between the sublimation thermal transfer sheet having the dye layer and the dye-receiving layer of the thermal transfer image-receiving sheet or a decrease in printing sensitivity. Can do. Preferable mold release agents used by mixing include silicone oil, phosphate ester surfactants, fluorine surfactants, etc., among which silicone oil is desirable. As the silicone oil, modified silicone oils such as epoxy modification, vinyl modification, alkyl modification, amino modification, carboxyl modification, alcohol modification, fluorine modification, alkylaralkyl polyether modification, epoxy / polyether modification, and polyether modification are desirable.
[0022]
One or more release agents are used. The amount of the release agent added is preferably 0.5 to 30 parts by weight with respect to 100 parts by weight of the dye receiving layer forming resin. When the range of the addition amount is not satisfied, problems such as fusion between the sublimation heat transfer sheet and the dye receiving layer of the heat transfer image receiving sheet or a decrease in printing sensitivity may occur. By adding such a release agent to the dye receiving layer, the release agent bleeds out on the surface of the dye receiving layer after the transfer to form a release layer. These releasing agents may be separately applied on the dye receiving layer without being added to the dye receiving layer forming resin.
[0023]
The dye-receiving layer is a dispersion obtained by dissolving a resin obtained by adding a necessary additive such as a mold release agent to the surface of a foamed resin film in an appropriate organic solvent, or dispersing it in an organic solvent or water. Is formed by coating and drying by an appropriate coating method.
In forming the dye-receiving layer, a white pigment, a fluorescent whitening agent, or the like can be added for the purpose of improving the whiteness of the dye-receiving layer and further enhancing the sharpness of the transferred image. The dye-receiving layer formed as described above may have any thickness, but generally has a thickness of 1 to 50 μm.
[0024]
Such a dye-receiving layer is preferably a continuous coating, but may be formed as a discontinuous coating using a resin emulsion, a water-soluble resin, or a resin dispersion. Further, an antistatic agent may be coated on the dye receiving layer in order to stabilize the conveyance in the printer.
Furthermore, an appropriate slip layer (not shown) can be provided on the surface of the thermal transfer image-receiving sheet opposite to the dye-receiving layer in order to prevent double feed during feeding in the printer. As the slip layer, a known resin such as butyral resin, polyacrylic ester, polymethacrylic ester, polyvinylidene chloride, polyester, polyurethane, polycarbonate, polyvinyl acetate, or a mixture of various fine particles, silicone, etc. What added the lubricant can be used.
[0025]
In a preferred embodiment of the present invention, the thermal transfer image-receiving sheet of the present invention is subjected to a half cut process. As the half-cut device, any conventionally known device can be used. For example, a linear cutter blade having a predetermined shape whose height can be adjusted is provided on a horizontal pedestal, an upper die that can move up and down, and an elastic material such as rubber. An apparatus comprising a pedestal comprising a body is used, and the thermal transfer image receiving sheet is inserted between the upper mold and the pedestal, the height of the blade is adjusted, and the upper mold is moved up and down to move the thermal transfer A half cut line having a desired shape can be formed on the image receiving sheet. Of course, a cylinder-type rotary cutter may be used instead of the above-described apparatus.
[0026]
A method for forming an image on the thermal transfer image-receiving sheet of the present invention formed as described above may be a conventionally known sublimation thermal transfer system, for example, a thermal transfer sheet having three, three-color dye layers of yellow, cyan, and magenta in order. Using a known thermal head printer, a desired full-color image is formed on the dye-receiving layer of the thermal transfer image-receiving sheet of the present invention, and the layer containing the image-formed dye-receiving layer is separated from the release paper together with the pressure-sensitive adhesive layer. The peeled and peeled layer containing the dye-receiving layer can be attached to any article.
[0027]
Further, when the thermal transfer image receiving sheet is half cut as described above, an image is formed in the half cut area, and the half cut area formed by the same method as shown in FIG. Similarly, it can be attached to any article 11.
[0028]
【Example】
Next, the present invention will be described more specifically with reference to examples and comparative examples. In the text, “%” or “%” is based on weight.
Reference example 1
First, a dye receiving layer coating solution having the following composition is applied to one surface of a foamed polyethylene terephthalate film (trade name W-900, manufactured by Diafoil, thickness 50 μm) at a solid content coating amount of 4.0 g / m ² . The dye receiving layer was formed by coating and drying.
[0029]
Coating liquid composition :
Vinyl chloride / vinyl acetate copolymer (# 1000A, manufactured by Denki Kagaku Kogyo) 40 parts Polyester (Byron 600, manufactured by Toyobo) 40 parts Vinyl chloride / styrene / acrylic copolymer (Denkalac # 400A, manufactured by Denki Kagaku Kogyo) 20 parts Vinyl-modified silicone (X-62-1212, manufactured by Shin-Etsu Chemical Co., Ltd.) 10 parts Catalyst (CAT-PLR-5, manufactured by Shin-Etsu Chemical Co., Ltd.) 5 parts Catalyst (CAT-PL-50T, manufactured by Shin-Etsu Chemical Co., Ltd.) 6 parts 400 parts of methyl ethyl ketone / toluene (1/1)
Next, an adhesive having the following composition was applied to the surface of the foamed polyethylene terephthalate film on which the dye-receiving layer was not formed at a solid content coating amount of 15 g / m ² , and the temperature was 70 ° C. for 1 minute. The pressure-sensitive adhesive layer was formed by heat drying.
Adhesive acrylic copolymer (SK Dyne 1310L, manufactured by Soken Chemical) 48 parts Epoxy resin (curing agent E-AX, manufactured by Soken Chemical) 0.36 parts Ethyl acetate 51.64 parts
Separately, the laminate was laminated with the pressure-sensitive adhesive layer surface of the laminate opposed to one surface of a biaxially stretched polypropylene film (trade name: Pyrene P2156, manufactured by Toyobo Co., Ltd., thickness: 50 μm). Finally, a quaternary ammonium salt compound (manufactured by Matsumoto Yushi Seiyaku Co., Ltd., 1/1000 dilution of TB-34) was applied as an antistatic agent to the dye receiving layer surface to form the thermal transfer image receiving sheet of the present invention.
[0032]
Reference example 2
The thermal transfer image-receiving sheet obtained in Reference Example 1 was half-cut into the shape shown in FIG. 2 while leaving the thickness of the releasable film to obtain a thermal transfer image-receiving sheet of Reference Example . The size of one screen is 110 × 110 mm, and 12 small sections of 20 × 15 mm are formed in the one screen as shown in the figure.
[0033]
Reference example 3
Reference as the release sheet in Example 1, unstretched polypropylene film surface untreated (tradename Taiko FC, FA, Futamura Chemical Co., thickness 60 [mu] m) Except for using in the same manner as in Reference Example 1 and Reference Example 2 An example half-cut thermal transfer image-receiving sheet was obtained.
[0034]
Reference example 4
Instead of the support in Reference Example 1 (foamed polyethyleneterephthalate off tallates), synthetic paper (trade name Yupo FPU, Oji Yuka Co., Ltd., thickness 60 [mu] m) Except for using in the same manner as in Reference Example 1 and Reference Example 2 Reference An example half-cut thermal transfer image-receiving sheet was obtained.
[0035]
Reference Example 5
First, a similar dye receiving layer was formed on one surface of a foamed polypropylene film (Mobil, MW846, thickness 35 μm) in the same manner as in Reference Example 1.
Next, an adhesive having the following composition was applied to the surface of the foamed polypropylene film on which the dye-receiving layer was not formed at a solid coating amount of 3 g / m ² , and PET film (Toray, transparent PET T-60, thickness 25 μm) was bonded.
Adhesive urethane-based resin (Takelac A-969V, Takeda Pharmaceutical) 30 parts Isoanate hardener (Takenate A-5, Takeda Pharmaceutical) 10 parts Ethyl acetate 80 parts
An adhesive having the following composition is applied to the exposed surface of the PET film bonded as described above at a solid content coating amount of 15 g / m ² , and is heated and dried at a temperature of 70 ° C. for 1 minute to adhere. An agent layer was formed.
Adhesive acrylic copolymer (SK Dyne 1310L, manufactured by Soken Chemical) 48 parts Epoxy resin (curing agent E-AX, manufactured by Soken Chemical) 0.36 parts Ethyl acetate 51.64 parts
Separately, the laminate was laminated so that the surface of the pressure-sensitive adhesive layer of the laminate was opposed to one surface of a surface-untreated biaxially oriented polypropylene film (trade name: Taiho FC, FA, manufactured by Nimura Chemical Co., Ltd., thickness: 60 μm). Finally, a quaternary ammonium salt compound (manufactured by Matsumoto Yushi Seiyaku Co., Ltd., 1/1000 dilution of TB-34) was applied as an antistatic agent to the surface of the dye receiving layer to form a thermal transfer image receiving sheet of a reference example.
[0038]
Example 1
The thermal transfer image-receiving sheet obtained in Reference Example 5 was half-cut into the shape shown in FIG. 4 while leaving the thickness of the releasable film to obtain the thermal transfer image-receiving sheet of the present invention. The size of one screen is 110 × 110 mm, and 12 small sections of 20 × 15 mm are formed in the one screen as shown in the figure.
[0039]
Comparative Example 1
Instead of a release sheet in Reference Example 1, Reference Example 1 and Reference Example except for using a PET film which was release-treated surface by applying a vinyl-modified silicone (trade name S-10, manufactured by Toray Industries, 38 [mu] m thickness) In the same manner as in No. 2, a half-cut thermal transfer image-receiving sheet of a comparative example was obtained.
[0040]
Comparative Example 2
Instead of a release sheet in Reference Example 5, PET film whose surface is release-treated by coating the amino-modified silicone (trade name T-60, manufactured by Toray Industries, thickness 50 [mu] m), except that was used in Reference Example 5 and Example In the same manner as in Example 1 , a half-cut thermal transfer image-receiving sheet of a comparative example was obtained.
[0041]
A sublimation thermal transfer sheet (manufactured by Dainippon Printing) having dye layers of three colors of yellow, cyan, and magenta in sequence, and the thermal transfer image-receiving sheets of the present invention and the comparative example, each having a dye layer and a dye-receiving surface. From the back of the thermal transfer sheet, a head applied voltage of 12.0 V and a pulse width of 16 msec. Recording was performed with a thermal head at a dot density of 6 dots / line, and a full-color face photograph was formed on the dye-receiving layer of the thermal transfer image-receiving sheet. When the reflection density of the black portion of the same portion of each obtained image was measured, the results shown in Table 1 below were obtained. Moreover, when the image quality was evaluated visually, the results shown in Table 1 below were obtained.
[0042]
Conveyability : Judged by the number of times the printer was stopped when continuous images were formed on 100 thermal transfer image-receiving sheets.
Good: Printer stop 2 times or less Defective Printer stop 20 times or more
Image quality : Visual observation A: Excellent in light and shade, clear and powerful.
○: Excellent in shading, clear and powerful.
X: The whole is flat and blurry.
Color density : Measured with a densitometer RD-918 manufactured by Macbeth, USA.
Adhesive strength (peel strength) : The peel strength between the release sheet and the pressure-sensitive adhesive layer was measured according to JIS P8139 under the condition of a sample width of 35 mm.
[0043]
[Table 1]
Performance evaluation

[0044]
【effect】
According to the present invention as described above, in the thermal transfer image receiving sheet as described above, by using a non-surface treated polyolefin resin film as a release sheet, the half-cut region is peeled off when an image is formed in a thermal transfer printer. In addition, it is possible to provide a thermal transfer image receiving sheet in which half-cut areas can be easily peeled after image formation.
[Brief description of the drawings]
FIG. 1 is a diagram schematically illustrating a cross section of a thermal transfer image receiving sheet of a reference example .
FIG. 2 is a diagram schematically illustrating a cross section of a thermal transfer image receiving sheet of a reference example .
FIG. 3 is a diagram schematically illustrating a cross section of a thermal transfer image receiving sheet of a reference example .
FIG. 4 is a cross-sectional schematic description to figure heat transfer image-receiving sheet of the present invention.
FIG. 5 is a diagram schematically illustrating a conventional half-cut thermal transfer image receiving sheet.
6 is an enlarged sectional view taken along line XX in FIG.
FIG. 7 is a diagram illustrating a state where a peeled image is attached to another article.
1: Core 2: Image 3: Half-cut line 4: Adhesive layer 5: Release sheet 6: Support (foamed resin film)
7: Dye-receiving layer 8: Unfoamed resin film 9: Foamed resin film 10: Adhesive layer 11: Article 12: Detection mark

Claims (2)

  In the thermal transfer image receiving sheet comprising at least a release sheet, a pressure-sensitive adhesive layer formed on the release surface, a support peelable together with the pressure-sensitive adhesive layer, and a dye-receiving layer formed thereon, The sheet is made of a non-surface-treated polyolefin resin film, and the other laminated parts excluding the release sheet are half-cut into an arbitrary shape by a half-cut line (provided that the half-cut line is discontinuous and Except for the case where the half-cut line consists of a shallow part and a deep part), the peelable support is a laminate of an unfoamed resin film in contact with the adhesive layer and a foamed resin film in contact with the dye-receiving layer A thermal transfer image-receiving sheet.   The thermal transfer image-receiving sheet according to claim 1, wherein the polyolefin resin film having no surface treatment is a stretched or unstretched polypropylene resin film.

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