JPH01128869A - Sheet for producing dry-type transfer material - Google Patents

Abstract

PURPOSE:To prevent a sheet base from being wrinkled and enable re-adhesion of the sheet base and an opaque layer through releasing a part of a release layer, by a construction wherein a pressure sensitive adhesive sheet comprising the release paper adhered to one side of the opaque layer is partly adhered to a transparent or semitransparent sheet base. CONSTITUTION:A base sheet 4 comprises a sheet base 3 and a releasable coat layer 2, whereas a pressure sensitive adhesive sheet 11 comprises a release paper 5 adhered to an opaque layer 7 by an adhesive layer 6, and a part of the release paper 5 is removed for partial adhesion of the opaque layer 7 to the base sheet 4. The release paper 5 is provided with cutting lines 8 at regular intervals. Since the opaque layer 7 is light-reflective or light-absorptive, the presence or absence, the position or the like of this printing paper can be detected by a reflection- or transmission-type photosensor. Wrinkling or the like does not occur due to differences between coefficients of expansion of the layers, and even when the opaque layer is separated from the sheet base by cutting off a part provided with a transferred image, the opaque layer can be again adhered to the sheet base by removing a part of the release paper, and the sheet can be used as a new sheet.

Description

Detailed Description of the Invention (Technical Field) The present invention relates to a sheet for producing a transfer material used in the production of a dry transfer material, and is particularly applicable to pressure-sensitive transfer type printers, heat-sensitive transfer type printers, typewriters, word processors, etc. The present invention relates to a sheet that can be advantageously used in the production of a dry transfer material that can be used to transfer prints and transfer a target transfer image onto a predetermined transfer object by pressure or heat. It is something.

(Prior Art) Dry transfer materials have heretofore been known in which an image provided on a transparent or translucent sheet substrate is transferred onto an object to be transferred to form a desired image on the object to be transferred. ing. Such a transfer material is used for lettering, etc., and symbols such as characters designed in advance can be drawn on the sheet of the transfer material simply by applying pressure.

On the other hand, in recent years, printing devices such as pressure-sensitive transfer methods using dot impact heads, thermal transfer methods using thermal heads, and printers, typewriters, and word processors using inkjet and ink dot type heads have been developed. As a result, they are becoming widely used for everything from small personal use to business use. For example, in printing using a thermal transfer method, a thermal transfer ink ribbon is brought into close contact with a predetermined printing paper using a thermal head, and a predetermined heating element among the many heating elements of the thermal head is made to generate heat. This is done by melting the heat-melting ink portion that is in contact with the heating element through the film-like support of the ribbon and transferring it to the printing paper. A technology has been proposed that allows the above-mentioned dry transfer material to be easily manufactured at home or office using such printers (Japanese Patent Application No. 61-275538).
issue).

In addition, some of the above-mentioned printers use photosensors as a means of detecting whether or not printing paper is present in the head section in order to eliminate printing problems. , has been increasing in recent years. This photosensor detects whether or not the printing paper is at a predetermined printing position based on whether or not light is blocked or transmitted by the printing paper, or whether light is reflected from the printing paper. By using this photosensor, the accuracy can be improved even more than the mechanical paper detection means of the previous technology.

By the way, when trying to print on a transparent or translucent transfer material manufacturing sheet using such a printer etc. in order to obtain the desired dry transfer material described above, the sheet base material of such sheet itself becomes transparent or translucent. Therefore, even though the sheet base material exists, there is a possibility that the photo sensor may detect that the sheet base material is not present. In order to solve this problem, the applicant of the present application has already proposed a technique for providing a light-impermeable layer made of paper or the like on the sheet substrate in Japanese Patent Application No. 85351/1983.

(Problem) However, in the above sheet for manufacturing transfer materials, when a removable light-impermeable layer such as paper is attached to the sheet base material, the sheet base material for manufacturing the transfer materials Due to the difference in expansion coefficient due to the difference in thermal expansion coefficient and hygroscopicity between the light-impermeable layer and the light-opaque layer, when the difference between the temperature and humidity at the time of adhesion and the subsequent environmental temperature and humidity becomes large, it is necessary to There was a problem in that the sheet became wrinkled, making it impossible to print using a printer or the like.

In addition, in order to avoid such problems caused by the occurrence of wrinkles, the sheet substrate and the light-impermeable layer are not bonded over the entire surface, but the adhesive layer is applied only to the top of the light-impermeable layer or only here and there. If the sheet is provided and adhered, it becomes difficult to cut and use only the portion where the transferred image exists after manufacturing the sheet for manufacturing the transfer material. That is,
When the transfer image portion formed on the upper part of a sheet for manufacturing a transfer material with only the upper part adhered is cut, there is no part to adhere the light-opaque layer to the sheet.
The light-opaque layer will be separated, and even if the sheet for manufacturing a transfer material is partially adhered, if it is canted, the upper end of the remaining sheet portion will still be adhered. Not only that, but there is also a risk of wrinkles or bending when setting it in a printer or the like.

To the best of the present inventor's knowledge, there have been no other reports to date regarding the technology for improving the shelf life of sheets for producing transfer materials on which a light-impermeable layer such as paper is attached and formed. The reality is that this has not been done.

(Object of the Invention) The present invention has been made against the background of the above, and its object is to provide a light-opaque material that is adhered to a sheet base material of a sheet for manufacturing a transfer material. By configuring the layer with an adhesive sheet structure with a release paper and partially adhering them, the difference in expansion coefficient between the sheet base material and the light-impermeable layer allows the layer to withstand changes in environmental temperature. The purpose is to provide a sheet for manufacturing transfer materials that eliminates the wrinkles that occur in the sheet and has good storage stability, and after forming a transfer image on the sheet for manufacturing transfer materials, the transferred image forming portion is sequentially canted and used. To provide a sheet for producing a transfer material in which separation of a sheet base material and a light-impermeable layer can be avoided by peeling off a release paper and adhering the sheet base material and the light-impermeable layer. It is in.

(Solution Means) In order to achieve the above object, the present invention manufactures a transfer material in which an image is formed using a transferable ink so that the image can be transferred to the surface of a predetermined transfer object. In the sheet used for this purpose, an adhesive layer is provided over the entire surface of one surface of the light-impermeable layer, and a release paper is removably attached to the adhesive layer, leaving one edge of the adhesive layer. A pressure-sensitive adhesive sheet is formed, and the pressure-sensitive adhesive sheet is
Adhere to the back side of a transparent or translucent sheet base opposite to the front side on which the image is formed, through the exposed part of the adhesive layer to which the release paper is not attached. The gist thereof is a sheet for producing a dry transfer material, which is characterized by the following.

In addition, in the sheet for producing a dry transfer material of the present invention, preferably, the above-mentioned adhesive sheet has a release paper with perforations.

(Function) In the sheet for producing a transfer material according to the present invention, an adhesive sheet with a release paper attached to one side of the light-opaque layer is partially adhered to a transparent or translucent sheet base material. By forcing it, an escape area for expansion and contraction can be effectively formed,
As a result, even if the temperature and humidity at the time of bonding the two and the subsequent environmental temperature and humidity differ greatly, the sheet base material does not wrinkle and can be advantageously stored.

Further, in this transfer material manufacturing sheet, in order to pressure-sensitively transfer the transferred image to a transfer object after forming the transferred image with a printer etc., the transfer material manufacturing sheet is used to form a transfer image using a printer or the like. It becomes possible to cut out the formed upper part one by one and use it. That is, no matter where the sheet for producing a transfer material is cut from the top, the light-impermeable layer that is adhered to the sheet base material is composed of an adhesive sheet having a release paper with cuts. Therefore, by partially peeling off the release paper, the sheet base material and the light-opaque layer can be bonded together again, and it becomes possible to attach the sheet to a printer or the like.

(Example) Examples of the present invention will be shown below to clarify the present invention more specifically.

First, FIG. 1 is a plan view showing an embodiment of the present invention, and FIG. 2 is a schematic ll-Tl cross-sectional view thereof. In those figures, 1 is a sheet for manufacturing a transfer material according to the present invention, which basically consists of a base sheet 4 and an adhesive sheet 11. The basic sheet 4 is
It consists of a sheet base material 3 and a releasable coating layer 2 coated on one surface thereof, and an adhesive sheet 11 is attached to a light-impermeable layer 7 and one surface thereof via an adhesive layer 6. It is composed of a release paper 5 and a release paper 5. Then, with part of the release paper 5 removed, the adhesive sheet 11 is
Specifically, the light-opaque layer 7 is partially adhered to the surface of the base sheet 4 on the side opposite to the releasable coating layer 2.

Note that the release paper 5 includes, as shown in FIG.
Separation lines 8 are formed at equal intervals, and in this embodiment, the separation lines 8 are formed at intervals that are an integral multiple of the feed pitch at the time of line feed in a printer or the like.

Furthermore, the releasable coating layer 2 is provided to enhance the releasability of the transferred image when a transferred image is formed thereon, and to facilitate transfer to the object to be transferred.
There is no particular need as long as the material itself has sufficient removability.

The sheet base material 3 for forming the basic sheet 4 may be a transparent or translucent material having a thickness of approximately 50 to 200 microns, such as a plastic film, paper, or a film laminated with an extremely thin metal layer. used.

Here, as the plastic film, one made of polyethylene, polypropylene, polyester, polyamide, fluorine-based resins, cellulose-based materials, etc. is appropriately employed.

Furthermore, as the light-impermeable layer 7 constituting the adhesive sheet 11, a light-reflecting layer or a light-absorbing layer is generally adopted, and when a light-reflecting layer is used, it can be detected sufficiently by a reflective photosensor, for example. It will be made of paper, plastic film, metal foil, etc. with a high reflectance. On the other hand, in the case of a light-absorbing layer, the presence or absence of paper is detected by a transmission type photo sensor, so the light-absorbing layer is made of a known material such as paper or plastic that has a predetermined absorption wavelength. Ru.

The adhesive N6 is generally a known adhesive.

The adhesive 1 is formed on the entire surface of one side of the light-impermeable layer 7 using double-sided tape or the like, and the sheet base material 3 While the light-impermeable layer 7 is partially adhered, advantageously, they can be easily peeled off during the transfer operation to the object to be transferred. Note that the release paper 5 is temporarily attached to the light-impermeable layer 7 by the above-mentioned adhesive layer 6, as seen in ordinary adhesive sheets, and a part of the release paper 5 is partially removed. I'm starting to get it.

Furthermore, for the releasable coating layer 2, a material having appropriate wettability and releasability that does not strongly adhere to the ink of the thermally transferred pattern is appropriately selected, for example, if high releasability is required. In some cases, silicone resins, fluororesins, etc. are used, and other known release compounds such as various resins and waxes are used depending on the degree of release properties required. Of course, seat 5
If the material 2 itself has appropriate releasability, the formation of the releasable coating layer 3 is not necessarily required, as described above.

In addition, in order to improve the adhesive strength between the peelable coating layer 2 and the sheet base material 3 or between the light-opaque layer 7 and the sheet base material 3, one or both surfaces of the sheet base material 3 To,
It is possible to apply an anchor coat or surface treatment as appropriate.

Then, the transfer pattern 9 can be printed on the transfer material manufacturing sheet 1 formed in this way using a printer equipped with a normal photosensor, and at that time,
Since the light-opaque layer 7 provided on the back surface of the sheet base material 3 has light reflective or light absorbing properties, a reflective or transmissive photo sensor can detect the presence or absence of printing paper.
Therefore, by confirming the existence of the sheet 1 and transferring the transfer pattern 9 using a normal printer or the like as shown in FIG. 3, the position etc. can be detected easily and reliably.
Thus, the desired transfer sheet 10 can be manufactured.

By the way, such a transfer pattern 9 is formed by printing on the releasable coating layer 2 from an ink ribbon using, for example, a commercially available thermal transfer type printer, but in this case, the thermal transfer ink is The ribbon can be made of a heat-resistant plastic compound containing a coloring agent such as carbon black, a binder such as wax, a tackifier such as rosin, or, if necessary, a pressure-sensitive adhesive component such as polyacrylic acid ester. A material coated on tape will be used.

Further, as the coloring agent in the above-mentioned ink ribbon, one or more types of pigments such as carbon black are used, and it is also possible to add a dye to adjust the color tone. As binders, vegetable waxes such as candelilla wax, carnauba wax, rice wax, and wood wax; animal waxes such as beeswax, lanolin, and spermaceti; mineral waxes such as montan wax and ceresin; paraffin wax; One or more petroleum waxes such as microcrystalline wax are used. Furthermore, as tackifiers, petroleum resin, rosin,
One or more of hydrogenated rosin, rosin ester, ketone resin, phenol resin, etc. may be used. Furthermore,
Pressure-sensitive adhesive components include vinyl-based polymers such as polyvinyl chloride, polyacrylic acid ester, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, polyvinyl acetate, polyvinyl ether, polyvinyl acecool, polyisoptylene, etc. One or more of fiber polymers such as molecule, ethyl cellulose, nitrocellulose, and cellulose acetate, and rubber polymers such as chlorinated rubber and natural rubber are used.

By forming the transfer pattern 9 in this way, a transfer material (transfer sheet) 10 as shown in FIG. 3 is manufactured. After peeling off the adhesive sheet 11 from the sheet base material 3, or cutting out the portion where the transfer pattern 9 is formed, the adhesive sheet 11 is attached to the sheet base material 3.
After separating the transfer sheet 10 from the object, place the transfer sheet 10 at a desired position on the surface of the object to be transferred, and once the position is determined, press the portion of the transfer pattern 9 onto the surface of the object to transfer the transfer pattern 9. It is transferred onto the surface.

In the present invention, an adhesive layer 6 is formed over the entire surface of one side of the light-impermeable layer 7, and a release paper 5 is further pasted to form the adhesive sheet 11. Because of this, part of the release paper 5 is removed and adhered to the base sheet 4, and the part of the base sheet 4 where the transfer pattern 9 is formed is covered with a light-opaque layer 7. When the whole sheet is cut out, the light-impermeable layer 7 is completely separated from the remaining basic sheet 4 due to the presence of the release paper 5. Therefore, when forming a transfer pattern again using the remaining basic sheet 4, the adhesive sheet 1
Peel off and remove a part of the release paper 5 attached to 1,
By exposing the adhesive layer 6 and partially adhering the light-impermeable layer 7 to the base sheet 4 via the adhesive layer 6, this sheet can be used as a new sheet for producing a transfer material (1).
It should be used as a.

Although one embodiment of the present invention has been described in detail above, the present invention is not equally limited to such embodiment, and in addition to the above embodiment, as long as it does not depart from the spirit of the present invention, Various changes, modifications, and changes may be made based on the knowledge of those skilled in the art.
It should be understood that improvements and the like may be made.

(Effects of the Invention) As is clear from the above description, in the sheet for producing a transfer material according to the present invention, since a light-impermeable layer is provided on a transparent or semi-transparent sheet base material, a photo sensor When manufacturing the transfer material, a normal printer etc. can be used, and in addition to being able to easily create and use the transfer sheet at home, office, etc., it is also opaque to light. The layer has an adhesive sheet structure, and the sheet base material and the light-impermeable layer are partially adhered in the presence of a release paper, which causes wrinkles etc. due to the difference in their expansion coefficients. Therefore, it is possible to supply a sheet for producing a transfer material with good storage stability.

Moreover, since the light-impermeable layer that is adhered to the sheet base material has an adhesive layer formed on its entire surface and is an adhesive sheet that holds the release paper through the adhesive layer, it is easy to transfer. Even if the part where the image was formed is removed and the light-opaque layer is separated from the sheet base material,
By removing the release paper, it is easy to reattach the adhesive, and therefore there is no problem when installing the sheet for producing the transfer material into a printer or the like.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a sheet for manufacturing a transfer material showing an embodiment of the present invention, and FIG. 2 is a schematic cross-sectional view of the sheet for manufacturing a transfer material corresponding to the nn cross section in FIG. be. Further, FIG. 3 is a schematic cross-sectional view corresponding to the I-III cross section in FIG. 1 of a transfer sheet manufactured using the sheet for manufacturing a transfer material according to the present invention. l: Sheet for producing transfer material 2: Peelable coating layer 3: Sheet base material 4: Basic sheet 5: Release paper 6: Adhesive layer 7: Light-impermeable layer 8: Separation line 9: Transfer pattern 10: Transfer sheet 11
: Adhesive sheet applicant Brother Industries, Ltd.

Claims (2)

[Claims] (1) By forming an image with transferable ink,
In a sheet used for manufacturing a transfer material capable of transferring such an image onto the surface of a predetermined transfer object,
An adhesive layer is provided over the entire surface of one surface of the light-impermeable layer, and a release paper is removably adhered to the adhesive layer, leaving one edge of the adhesive layer, thereby forming an adhesive sheet. , the adhesive sheet is applied to the back side of the transparent or translucent sheet base opposite to the front side on which the image is formed, through the exposed part of the adhesive layer to which the release paper is not attached. A sheet for producing a dry transfer material, characterized in that the sheets are bonded so as to face each other. (2) A sheet for producing a dry transfer material according to claim 1, wherein the adhesive sheet has a release paper with a plurality of cut lines.