JPH11348441A - Recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an excellent preservability by holding a printed surface in a clearly recording state without staining the surface. SOLUTION: The recording medium comprises a thermosensitive recording layer 16 to be printed by a printing head and provided on a surface of a base material 15, a release treating layer 17 provided on a rear surface of the material 15, and a transparent release material 19 having a sticky layer 18 and releasably provided on the layer 17. Accordingly, after the layer 16 on the surface of the material 15 is printed by a print head, the material 19 is released from the layer 17 of the rear surface of the material 15, and the material 15 is stuck on the printed layer 16 via the layer 18. Thus, the layer 16 can be seen through the material 19, and the layer 16 can be protected by the material 19. Therefore, a printed surface is not stained, the surface can be held in a clearly recording state, thereby obtaining an excellent preservability.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium used for a printing device.

[0002]

2. Description of the Related Art Conventionally, as a recording medium on which print data such as desired characters and figures are printed and recorded by heat generation of a print head provided in a printing apparatus, for example, ink of an ink ribbon is generated by heat generation of a print head. Is melted and transferred, or heat-sensitive paper on which printing is performed by the heat-sensitive recording layer being colored by the heat generated by the print head.

[0003]

However, in the recording paper using the former ink ribbon, the ink transferred from the ink ribbon to the printing surface is exposed when the ink of the ink ribbon is melted and transferred by the heat generated by the print head. Therefore, there is a problem that the transferred ink is peeled off due to the rubbing of the printing surface or the paper is stained with the transferred ink, and the printing surface cannot be kept in a clear recording state. In the latter thermal paper having a thermal recording layer, the thermal recording layer is colored by the heat generated by the print head.
Since the heat-sensitive recording layer is susceptible to sebum, oil, chemicals, etc. in addition to heat, storage stability is inferior to thermal transfer using an ink ribbon in any points such as heat resistance, durability, and chemical resistance. There is a problem.

[0004] An object of the present invention is to provide a print surface which can be maintained in a clear recording state without being stained on the print surface and which has excellent storage stability.

[0005]

According to the first aspect of the present invention,
A base material, a print layer provided on the surface of the base material and printed by a print head, a release treatment layer provided on the back surface of the base material, and an adhesive provided releasably on the release treatment layer A light-transmitting release material having a layer. According to the present invention, after printing is performed by the print head on the print layer provided on the surface of the base material, the translucent release material having the adhesive layer is peeled from the release treatment layer provided on the back surface of the base material. Then, by attaching this translucent release material to the printed print layer via an adhesive layer, the printed layer can be seen through the translucent release material, and the translucent release material can be seen. The printing layer can be protected by the material, so that the printing surface is not stained, the printing surface can be kept in a clear recording state, and a product excellent in storability can be obtained.

According to a third aspect of the present invention, there is provided a base material, a printing layer provided on a front surface of the base material and printed by a print head, a first adhesive layer provided on a back surface of the base material, A light-transmitting first release material having a release treatment layer releasably provided on the first adhesive layer, a second adhesive layer provided on the back surface of the first release material, and a second adhesive layer. And a second release material provided so as to be peelable. According to the present invention, after printing is performed by the print head on the print layer provided on the surface of the base material, the light-transmitting first release material is peeled off from the first adhesive layer via the release treatment layer. The second of the first release material
The second release material is peeled off from the adhesive layer, and the first release material from which the second release material has been peeled off is attached to the print layer on the surface of the base material via the second adhesive layer, whereby the light-transmitting second release material is removed. Since the printed layer can be seen through the release material 1 and the printed layer can be protected by the light-transmitting first release material,
Similar to the first aspect of the present invention, the printed surface is not stained, the printed surface can be kept in a clear recording state, and excellent storage stability can be obtained. The substrate printed with the adhesive layer can be attached to a desired position of a desired object.

According to a fifth aspect of the present invention, there is provided a transparent base material,
A print layer provided on the surface of the base material on which printing is performed by a print head, a release treatment layer provided on the back surface of the base material, and a release layer having an adhesive layer releasably provided on the release treatment layer Material. According to the present invention, after performing printing by a print head on a print layer provided on the surface of a translucent base material, a release material having an adhesive layer is obtained from a release treatment layer provided on the back surface of the base material. By peeling and attaching this release material to the printed print layer via an adhesive layer, the print layer can be seen through the light-transmitting base material, and the printed layer can be seen by the attached release material. Therefore, as in the first aspect of the present invention, the printed surface is not stained, the printed surface can be kept in a clear recording state, and a product excellent in storability can be obtained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] A first embodiment of a recording medium according to the present invention will be described below with reference to FIGS. FIG. 1 is a schematic configuration diagram showing a main part of a printing apparatus suitable for printing on a recording medium. The printing apparatus includes an apparatus main body 1, and a cassette storage section 2 is provided at a predetermined position of the apparatus main body 1. A platen roller 3, a print head 4, a supply shaft 5, and a take-up shaft 6 are provided in the cassette housing portion 2, and a tape cassette 7 is detachably mounted. The platen roller 3 is rotatably provided in the cassette housing section 2 and is configured to be rotated by a motor (not shown). The print head 4 is provided on the platen roller 3 so as to be able to contact and separate from the platen. Heating elements are arranged on the pressure contact surface, and these heating elements are selectively driven to generate heat based on print data. The supply shaft 5 and the take-up shaft 6 are rotatably provided in the cassette housing section 2, and the take-up shaft 6 is configured to rotate in synchronization with the rotation of the platen roller 3.

The tape cassette 7 has a cassette case 8. The cassette case 8 includes a print head 4
Is formed, and a supply reel 10 is rotatably arranged inside the cassette case 8. The cassette case 8 is provided with an insertion hole 11 into which the winding shaft 6 is inserted. This tape cassette 7
The print head 4 is inserted into the cutout 9 and the supply reel 10
The supply shaft 5 is inserted into the cylindrical shaft, and the take-up shaft 6 is inserted into the insertion hole 11, and is mounted in the cassette housing portion 2. In this state, a tape-shaped thermal paper 12 as a recording medium is fed from the supply reel 10 and sent out to the cutout portion 9, and the sent thermal paper 12 passes between the print head 4 and the platen roller 3. The tape is sent out from the tape discharge path 13 of the apparatus main body 1. Note that a cutter mechanism 14 is provided in the apparatus main body 1 at a location corresponding to the tape discharge path 13. This cutter mechanism 14 is provided with a pair of cutter blades 14a and 14b with a tape discharge path 13 interposed therebetween. The cutter blades 14a and 14b are driven to relatively move in the direction of approaching and separating, so that the thermal paper 12 Is configured to be cut.

The tape-shaped thermal paper 12 wound on the supply reel 10 has a base material 15 as shown in FIG. A heat-sensitive recording layer 16 as a printing layer is provided on the surface (upper surface in the figure) of the substrate 15, and a release treatment layer 17 is provided on the back surface (lower surface in the figure) of the substrate 15. .
The release treatment layer 17 is provided with a transparent release material 19 having an adhesive layer 18 in a releasable manner. In addition, the adhesive layer 1
8 has transparency. In this case, as the base material 15, for example, a plastic film such as polyethylene, polyamide, polyester, polypropylene, vinyl chloride, and polyethylene terephthalate (PET);
Paper such as high-quality paper and Japanese paper is used.

The heat-sensitive recording layer 16 develops a color by the heat generated by the heating element of the print head 4, and includes a color former, a developer,
And a binder as a main component, if necessary, a coloring aid,
It is configured to contain an auxiliary agent such as a filler. As the color former, for example, a leuco dye such as a triphenylmenthane type, a fluoran type or a phenothiazine type is used. As the developer, for example, phenols, organic acids, solid acids and the like are used. As the binder, for example, a water-soluble binder such as polyvinyl alcohol, a cellulose derivative, an aqueous acrylic resin, and a starch derivative, and a water-insoluble binder such as polystyrene and a vinyl chloride-vinyl acetate copolymer are used. As the release treatment layer 17, for example, a silicone resin or a fluorine resin is used. As the adhesive layer 18, for example, a solvent type having transparency such as acrylic or polyurethane is used. Examples of the transparent release material 19 include acrylic, polyethylene, polyamide, polyester, polypropylene, vinyl chloride, polyethylene terephthalate (PE
A transparent plastic film such as T) is used.

When printing is performed by a printing apparatus using the thermal paper 12 as shown in FIG. 1, first, the tape cassette 7 containing the thermal paper 12 is placed in the cassette storage section 2 of the apparatus main body 1 as shown in FIG. The heat-sensitive paper 12 attached and fed out from the supply reel 10 is sent out to the cutout 9 and disposed between the print head 4 and the platen roller 3. At this time, the thermal recording layer 16 of the thermal paper 12 faces the print head 4. Thereafter, the print head 4 is brought into pressure contact with the platen roller 3 via the thermal paper 12, and the platen roller 3 is rotated in this state to convey the thermal paper 12 toward the tape discharge path 13. The elements are selectively driven to generate heat based on the print data. As a result, as shown in FIG. 2, the heat-sensitive paper 12
The heat-sensitive recording layer 16 is partially colored to form a colored portion 16a, whereby printing based on the print data is performed. The thermal paper 12 on which printing has been performed is sequentially sent out of the apparatus main body 1 from the tape discharge path 13, cut by the cutter mechanism 14, and discharged to the outside in a label state shown in FIG. 3.

As shown in FIG. 4A, a transparent release material having an adhesive layer 18 from a release treatment layer 17 provided on the back surface of a base material 15 is provided on the thermal paper 12 thus printed. 4A, and then, as shown in FIG. 4B, the peeled release material 19 is printed on the heat-sensitive recording layer 1 on which printing has been performed.
6 is adhered to the surface of No. 6 via an adhesive layer 18. As a result, the printed thermosensitive recording layer 16 can be seen through the transparent release material 19, and the thermosensitive recording layer 16 can be protected by the transparent release material 19. The surface can be kept clean, the heat-sensitive recording layer 16 can be kept in a clear recording state, and a layer having excellent storage stability can be obtained.

[Second Embodiment] Next, a second embodiment of the recording medium of the present invention will be described with reference to FIGS. 5 (a) and 5 (b). The same parts as those in the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals, and description thereof will be omitted. The thermal paper 20 as this recording medium is shown in FIG.
As shown in (a), a substrate 15 is provided, and a thermosensitive recording layer 16 which is a printing layer is provided on the surface (the upper surface in FIG. (Bottom in the figure)
Is provided with a first adhesive layer 21. On the first adhesive layer 21, a transparent first release material 22 having a release processing layer 17 is provided so as to be peelable by the release processing layer 17, and on the back surface (the lower surface in the figure) of the first release material 22. , A second adhesive layer 23, and a second release material 24 is provided on the second adhesive layer 23 in a releasable manner. in this case,
The release treatment layer 17 has transparency, and the first and second adhesive layers 21 and 23 are substantially the same material as the adhesive layer 18 of the first embodiment, and an acrylic transparent solvent type is used. You. Further, the transparent first release material 22 is substantially the same material as the transparent release material 19 of the first embodiment. The second release material 24 is release paper, and is substantially the same material as the base material 15 or the transparent release material 19 of the first embodiment.

According to such thermal paper 20, as in the first embodiment, after the thermal recording layer 16 is colored by the heat generated by the heating elements of the print head 4 and printing is performed, FIG. As shown, the first adhesive layer 2 provided on the back surface of the base material 15
The first transparent release material 22 having the release treatment layer 17 is peeled from the first release material 22, and the second adhesive layer 23 of the first release material 22 is removed from the second adhesive layer 23.
The release material 24 is peeled off, and then, as shown in FIG. 5B, a transparent first release material 22 is adhered to the heat-sensitive recording layer 16 on the surface of the substrate 15 via the second adhesive layer 23. Thus, the printed thermosensitive recording layer 16 can be seen through the transparent first release material 22, and the surface of the thermosensitive recording layer 16 can be protected by the transparent first release material 22. As in the first embodiment, the thermosensitive recording layer 16
The surface of the heat-sensitive recording layer 16 can be maintained in a clear recording state without being stained, and a material having excellent storage stability can be obtained. In particular, the second adhesive layer 23 of the first release material 22 can be used. The printed base material 15 can be attached to a desired position on a desired object.

[Third Embodiment] Next, a third embodiment of the recording medium of the present invention will be described with reference to FIGS. Also in this case, the same portions as those of the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals, and description thereof will be omitted. As shown in FIG. 6A, the thermal paper 30 as a recording medium includes a transparent base material 31. A heat-sensitive recording layer 16 which is a printing layer is provided on the surface (upper surface in the figure) of the transparent substrate 31, and a transparent peeling treatment is performed on the back surface (lower surface in the figure) of the transparent substrate 31. A layer 32 is provided. A release material 33 having the same adhesive layer 18 as in the first embodiment is provided on the release treatment layer 32 so as to be peelable. In this case, the transparent base material 31 is substantially the same material as the transparent release material 19 of the first embodiment, and the transparent release treatment layer 32 is substantially the same material as the release treatment layer 17 of the first embodiment. It has the property. Also, the release material 33
Is a release paper, which is substantially the same material as the base material 15 of the first embodiment.

When printing is performed by the printing head 4 of the printing apparatus, printing data such as characters is printed upside down on the thermal paper 30 as shown in FIG.
In the thermal paper 30 on which printing is performed as described above, FIG.
As shown in FIG. 6, the release material 33 having the adhesive layer 18 was peeled off from the transparent release treatment layer 32 provided on the back surface of the transparent base material 31. Thereafter, as shown in FIG. A release material 33 is attached to the surface of the printed thermosensitive recording layer 16 via the adhesive layer 18 and then turned upside down. Thereby, the thermosensitive recording layer 16 on which printing has been performed through the transparent base material 31 can be seen from above. At this time, since the print data is printed upside down on the heat-sensitive recording layer 16, the printed record can be viewed in a regular character state through the transparent base material 31. Further, as in the first embodiment, the heat-sensitive recording layer 1
6 can be protected, the surface of the heat-sensitive recording layer 16 is not stained, the heat-sensitive recording layer 16 can be kept in a clear recording state, and a material having excellent storage stability can be obtained.

[Fourth Embodiment] Next, a fourth embodiment of the recording medium of the present invention will be described with reference to FIGS. 8 (a) and 8 (b). In this case, the same portions as those of the first embodiment shown in FIGS. 1 to 4, the second embodiment shown in FIG. 5, and the third embodiment shown in FIGS. 6 and 7 are the same. The reference numerals are used, and the description is omitted. The thermal paper 40, which is a recording medium, includes a transparent base material 31 as shown in FIG. A heat-sensitive recording layer 16 which is a printing layer is provided on the surface (upper surface in the figure) of the transparent base material 31, and transparent ultraviolet light is provided on the back surface (lower surface in the figure) of the transparent base material 31. A cut processing layer 41 is provided,
The ultraviolet treatment layer 41 is provided with a release treatment layer 17. A first release material 42 having the same first adhesive layer 21 as in the second embodiment is provided on the release processing layer 17 in a releasable manner, and a back surface (a lower surface in the figure) of the first release material 42 is provided on the first release material 42. A second adhesive layer 23 is provided.
A second release material 24 is provided on the adhesive layer 23 so as to be removable. In this case, the ultraviolet ray cut treatment layer 41 has transparency in which an ultraviolet ray absorbent is mixed in a silicone resin, and as the ultraviolet ray absorbent, for example, a benzotriazole derivative is used. Further, the first release material 42 is substantially the same material as the base material 15 of the first embodiment.

In the thermal paper 40, as in the third embodiment, after the print data of characters and the like is printed upside down by the print head 4, as shown in FIG.
The first release material 42 having the first adhesive layer 21 is released from the release treatment layer 17 on the back surface side of the transparent base material 31, and thereafter, FIG.
As shown in (b), the first release material 42 is applied to the transparent base material 31.
Is adhered to the heat-sensitive recording layer 16 on the surface via the first adhesive layer 21, and then turned upside down. Thereby, the transparent substrate 3
1 and the heat-sensitive recording layer 16 on which the printing has been performed through the ultraviolet cut layer 41 can be seen from above. Also at this time, since the print data is printed upside down on the heat-sensitive recording layer 16, the printed record can be viewed in a regular character state through the transparent base material 31 and the ultraviolet cut processing layer 41.

Further, in the thermal paper 40, the first release material 4
2 protects the surface of the heat-sensitive recording layer 16,
As in the embodiment, the surface of the heat-sensitive recording layer 16 is not stained, the heat-sensitive recording layer 16 can be kept in a clear recording state, and a material having excellent storability can be obtained. Since harmful ultraviolet rays can be cut by the layer 41, the heat-sensitive recording layer 1
6 can be prevented from discoloring. Further, in this state, since the second release material 24 is provided on the second adhesive layer 23 on the back surface of the first release material 42, the second release material 24 can be used as a tape with release paper. If the second release material 24 is peeled from the second adhesive layer 23 of the first release material 42, the base material 31 on which the printing has been performed by the second adhesive layer 23 can be applied to the desired object, as in the second embodiment. Can be pasted at the location.

In the fourth embodiment, the transparent base material 31 is used.
The ultraviolet cut processing layer 41 is provided on the back surface of the first embodiment. However, the present invention is not limited to this. For example, the ultraviolet cut processing layer 41 may be provided on the back surface of the base material 15 of the first embodiment. An ultraviolet cut layer 41 may be provided on the upper surface of the release material 22. In this way, in any case, harmful ultraviolet rays can be cut, and furthermore,
The thermal recording layer 16 can be protected well.

[Fifth Embodiment] Next, FIGS.
A fifth embodiment of the recording medium of the present invention will be described with reference to (c). Also in this case, the same portions as those of the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals, and description thereof will be omitted. The recording paper 50 as a recording medium includes a recording layer 51 as a printing layer on the surface (the upper surface in FIG.
The configuration is the same as that of the first embodiment, except that.
That is, as shown in FIG. 9A, the recording layer 51 has a print head 4 on its surface via an ink ribbon 52.
Are pressed against each other, and in this state, the ink 53 of the ink ribbon 52 is melted and transferred by the heat generated by the heating element of the print head 4, so that printing based on the print data is performed. This recording layer 51 is substantially the same material as the base material 15.

In this case, the tape cassette 7 for accommodating the recording paper 50 is provided with a ribbon supply reel and a ribbon take-up reel in a cassette case 8 (not shown). Of the recording paper 5 from the supply reel 10 shown in FIG.
0 is fed out, and the ink ribbon 52 is fed out from the ribbon supply reel.
After being fed between the recording paper 5 and the platen roller 5,
0 is sent out from the tape discharge path 13 and the ink ribbon 5
2 is wound around a ribbon winding reel (see FIG. 1).

When printing is performed by a printing apparatus using the recording paper 50, the recording paper 50 and the ink ribbon 52 are used.
Is mounted in the cassette housing section 2 of the apparatus main body 1 and the print head 4 is pressed against the platen roller 3 via the recording paper 50 and the ink ribbon 52, and the platen roller 3 is rotated in this state. The recording paper 50 is conveyed, and the winding shaft 6 is rotated in synchronization with the platen roller 5 to convey the ink ribbon 52 while winding it. In synchronization with this, the heating elements of the print head 4 are selectively driven to generate heat based on the print data. As a result, as shown in FIG. 9A, the ink 53 of the ink ribbon 52 is melted and sequentially transferred to the recording paper 50 in accordance with the heat generated by the heat generating element of the print head 4, so that the print data is based on the print data. Printing is performed. The printed recording paper 50 is sequentially sent out of the apparatus main body 1 from the tape discharge path 13 and cut by the cutter mechanism 14.

As shown in FIG. 9B, in the recording paper 50 on which printing has been performed as described above, as shown in FIG.
9 is peeled off, and then the transparent peeling material 19 having
As shown in (c), the peeled release material 19 is
Is adhered via the adhesive layer 18 to the surface of the recording layer 51 onto which is transferred. Thereby, the printed recording layer 51 can be seen through the transparent release material 19, and the recording layer 51 can be protected by the transparent release material 19, so that the surface of the recording layer 51 becomes dirty. It is possible to keep the recording layer 51 in a clear recording state without any waste, and to obtain a recording layer having excellent storage stability.

The recording paper 50 of the fifth embodiment is
A release treatment layer 17 is provided on the back surface of the base material 15, and a transparent release material 19 having an adhesive layer 18 is provided on the release treatment layer 17 in a releasable manner. However, the present invention is not limited to this. UV cut treatment layer 41 on the back of
May be provided. The present invention is not limited to this. For example, the recording layer 51 is provided on the surface of the
(A) and the second embodiment shown in FIG.
A first adhesive layer 21 is provided on the back surface of the base material 15, and a transparent first release material 22 having a release treatment layer 17 on the first adhesive layer 21.
Is provided so as to be peelable, a second adhesive layer 23 is provided on the back surface of the first release material 22, and a second release material 24 is provided on the second adhesive layer 23.
May be provided such that the first release material 2
2 may be provided with an ultraviolet cut processing layer 41 on the upper surface. Further, the present invention is not limited to these.
As shown in the third embodiment, a recording layer 51 is provided on the surface of a transparent substrate 31, a transparent release layer 32 is provided on the back surface of the transparent substrate 31, and the adhesive layer 18 is provided on the release layer 32. The structure may be such that a release material 33 having the following structure is provided in a releasable manner, and furthermore, a structure in which an ultraviolet ray cut processing layer 41 is provided on the back surface of the transparent base material 31.

In the first to fifth embodiments, as the material of the adhesive layer 18 and the first adhesive layer 21, a solvent type having transparency such as acrylic or polyurethane is used. However, the present invention is not limited to this. For example, an emulsion type or silicone having acrylic transparency may be used. Further, in the first to fifth embodiments,
Although the case where the thermal paper 12 as the recording medium or the recording paper 50 as the recording medium is configured in a tape shape wound in a roll shape has been described, the present invention is not limited to this. It can also be applied to paper.
As the size of the cut sheet in this case, for example, there are a plurality of sizes such as a postcard, B5, B4, A4, and A3, and any size can be applied.

[0028]

As described above, according to the first aspect of the present invention, a print layer on which printing is performed by a print head is provided on the surface of the base material, and a release treatment layer is provided on the back surface of the base material. Since a light-transmitting release material having an adhesive layer was provided in this release treatment layer in a releasable manner, after printing was performed by a print head on a print layer provided on the surface of the base material, it was provided on the back surface of the base material. The light-transmitting release material having the adhesive layer is peeled from the release treatment layer, and the light-transmitting release material is attached to the printed printing layer via the adhesive layer, whereby the light-transmitting release material is removed. The printed layer can be seen through, and the printed layer can be protected by this translucent release material, so that the printed surface does not become dirty and the printed surface can be kept in a clear recording state, Good preservability can be obtained.

According to the third aspect of the present invention, a printing layer on which printing is performed by a print head is provided on the surface of the base material, and a first adhesive layer is provided on the back surface of the base material. A first translucent material having a release treatment layer is provided releasably, a second adhesive layer is provided on the back surface of the first release material, and a second release material is removably provided on the second adhesive layer. Therefore, after printing is performed by the print head on the print layer provided on the surface of the base material, the first light-transmitting first adhesive layer is passed through the release treatment layer.
The release material is peeled off and the second adhesive layer of the first release material is removed from the second adhesive layer.
By peeling the release material and attaching the first release material from which the second release material has been peeled off to the print layer on the surface of the base material via the second adhesive layer, printing is performed through the light-transmitting first release material. In addition to being able to see the layer, the printed layer can be protected by the light-transmitting first release material, so that the printed surface is not stained and the printed surface is clear as in the first aspect of the present invention. In addition to being able to maintain a good recording state, it is possible to obtain a material having excellent preservability, and affix a substrate printed with the second adhesive layer of the first release material to a desired position of a desired object. be able to.

Further, according to the fifth aspect of the present invention, a printing layer on which printing is performed by a print head is provided on the surface of the light-transmitting base material, and a release treatment layer is provided on the back surface of the base material. Since a release material having an adhesive layer was provided on the release treatment layer in a releasable manner, after printing was performed by a print head on a print layer provided on the surface of the light-transmitting substrate, the release material was provided on the back surface of the substrate. By peeling the release material having the adhesive layer from the release treatment layer, and attaching the release material to the printed print layer through the adhesive layer, the printed layer can be seen through the light-transmitting substrate. At the same time, the printed layer can be protected by the attached release material, so that the printed surface is not stained and the printed surface can be kept in a clear recording state, similarly to the invention of claim 1. Good preservability can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a main part of a printing apparatus suitable for printing on a recording medium according to the present invention.

FIG. 2 is an enlarged sectional view of a main part showing a first embodiment of a thermal paper as a recording medium of the present invention.

FIG. 3 is a front view of the label-shaped thermal paper that has been printed and cut in FIG. 2;

FIG. 4 is an enlarged sectional view of a main part showing a use state of the thermal paper of FIG. 2, in which (a) shows a state in which a transparent release material having an adhesive layer is released from a release treatment layer of a base material; () Is an enlarged cross-sectional view of a main part showing a state in which a peeled transparent release material is adhered to a heat-sensitive recording layer of a substrate via an adhesive layer.

FIG. 5 shows a second embodiment of a thermal paper as a recording medium according to the present invention, in which (a) shows a state in which a transparent first release material having a release treatment layer is released from a first adhesive layer of a base material. FIG. 2B is an enlarged cross-sectional view of the main part, showing a state in which a transparent first release material in which the second release material has been peeled off from the second adhesive layer is adhered to the heat-sensitive recording layer of the substrate via the second adhesive layer. FIG.

6A and 6B show a third embodiment of a thermal paper as a recording medium of the present invention, wherein FIG. 6A is an enlarged sectional view of a main part showing a state where printing is performed on a thermal recording layer of the thermal paper, and FIG. FIG. 2 is an enlarged cross-sectional view of a main part showing a state where a release material peeled from a release treatment layer of a transparent base material is adhered to a heat-sensitive recording layer of a transparent base material via an adhesive layer and turned upside down.

FIG. 7 is a front view of a main part showing a state in which print data is printed upside down in FIG. 6A.

FIG. 8 shows a fourth embodiment of a thermal paper as a recording medium according to the present invention, wherein (a) is an enlarged sectional view of a main part of the thermal paper,
(B) shows a state in which the first release material peeled from the release treatment layer of the transparent base material is attached to the heat-sensitive recording layer of the transparent base material via the first adhesive layer, and is turned upside down. FIG.

9A and 9B show a fifth embodiment of a recording paper as a recording medium of the present invention, and FIG. 9A is an enlarged sectional view of a main part showing a state where printing is performed on a recording layer of the recording paper with an ink ribbon; ) Is an enlarged cross-sectional view of a main part showing a state where a transparent release material having an adhesive layer is released from a release treatment layer of the substrate, and (c) is an adhesion of the released transparent release material to the recording layer of the substrate. FIG. 4 is an enlarged cross-sectional view of a main part showing a state of pasting through a layer.

[Explanation of symbols]

 Reference Signs List 4 print head 12, 20, 30, 40 thermal paper 15 base material 16 thermal recording layer 17, 32 release treatment layer 18 adhesive layer 19, 33 release material 21 first adhesive layer 22, 42 first release material 23 second adhesive layer 24 Second release material 31 Transparent substrate 41 UV cut processing layer 50 Recording paper 51 Recording layer 52 Ink ribbon 53 Ink

Claims (8)

[Claims] 1. A base material, a print layer provided on a surface of the base material, and printed by a print head, a release treatment layer provided on a back surface of the base material, and a release treatment layer provided on the back surface of the base material. A light-transmitting release material having an adhesive layer provided on the recording medium. 2. The recording medium according to claim 1, wherein said translucent release material has been subjected to an ultraviolet ray cut treatment for cutting off ultraviolet rays. 3. A base material, a print layer provided on a surface of the base material and printed by a print head, a first adhesive layer provided on a back surface of the base material, A light-transmitting first release material having a release treatment layer provided releasably; a second adhesive layer provided on the back surface of the first release material; and a second adhesive layer provided on the second adhesive layer in a releasable manner. A recording medium comprising: a second release material. 4. The recording medium according to claim 3, wherein the light-transmitting first release material has been subjected to an ultraviolet ray cut processing for cutting off ultraviolet rays. 5. A light-transmissive substrate, a print layer provided on a surface of the substrate and printed by a print head, a release treatment layer provided on a back surface of the substrate, A release material having a pressure-sensitive adhesive layer releasably provided on the layer. 6. The recording medium according to claim 5, wherein another adhesive layer is provided on the back surface of said release material, and another release material is provided on said adhesive layer so as to be peelable. 7. The recording medium according to claim 5, wherein said translucent substrate has been subjected to an ultraviolet ray cut treatment for cutting off ultraviolet rays. 8. The recording medium according to claim 1, wherein said print layer is a heat-sensitive recording layer which develops color when heated by said print head.