JPH01127373A - Sheet for producing dry-type transfer material - Google Patents

Abstract

PURPOSE:To eliminate the wrinkles of sheet accompanying a change in environment temperature to obtain a transfer material producing sheet having a good shelf stability, by bonding an sheet substrate to a light-untransmitting layer such as a paper along a pair of edge parts opposed to each other in the transfer material producing sheet. CONSTITUTION:A base sheet 4 consists of a sheet substrate 2 and a releasable coating layer 3 applied on one surface of the sheet substrate 2. On the surface of the base sheet 4 reverse to the releasable coating layer 3, an adhesive layer 6 is formed with a predetermined with along the edge parts opposed to each other of the sheet substrate 2, and a light-untransmitting layer 5 is partially bonded on both the edge parts. Alternatively, the releasable coating layer 3 which is formed in order to enhance the releasability of a transfer image to facilitate the transfer to a material to be subjected to transfer is not essentially required if the sheet substrate 2 itself has a sufficient releasability. In this manner, an adhesion of the base sheet and the light-untransmitting layer on the edge parts disposed along at least either one pair of opposed two edges eliminates the possibility that the difference in expansion coefficient induces wrinkles and the like.

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. This sheet relates to a sheet that can be advantageously used in the production of a dry transfer material, which can be used to print and transfer images, and which can also transfer a desired transfer image onto a predetermined transfer object using pressure or heat. It is.

(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 heads have been developed. , and 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, in recent years, printers such as those mentioned above use photosensors as a means of detecting whether or not printing paper is present in the head section in order to eliminate printing problems. It has increased. This photo sensor detects whether or not the printing paper is at a predetermined printing position based on the presence or absence of light blocking, transmission, or reflection 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-opaque layer made of paper or the like on a sheet base material in Japanese Patent Application No. 85351/1982.

(Problem) However, is it for manufacturing the above transfer material? - When a removable light-impermeable layer such as paper is attached to the sheet base material, there are differences in thermal expansion coefficient and hygroscopicity between the sheet base material for producing the transfer material and the light-impermeable layer. Due to the difference in expansion rate, the temperature at the time of pasting.

When the difference between the humidity and the subsequent environmental temperature and humidity becomes large, the sheet for manufacturing the transfer material becomes wrinkled.
There was a problem in that it became impossible to print with a printer or the like.

Additionally, in order to avoid such wrinkles, it is recommended not to bond the sheet base material and the light-opaque layer over the entire surface, but only the upper part of the light-opaque layer, or to partially bond the sheet base material and the light-opaque layer. If the sheet is glued to the sheet, it will be difficult to cut and use only the part where the transferred image exists after manufacturing the sheet for manufacturing the transfer material.In other words, if the sheet for manufacturing the transfer material is glued to When the transfer image area formed on the upper part of a sheet is cut, there is no longer a part to which the light-opaque layer is attached to the sheet, and the light-opaque layer is separated. Even if there is a sheet for manufacturing transfer materials that has been cut, the top edge of the remaining sheet may not always be glued, and it may wrinkle or bend when set in a printer, etc. It is expansive.

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 By adhering along a pair of opposing edges,
Due to the difference in expansion coefficient between the sheet base material and the light-opaque layer,
The purpose of the present invention is to provide a sheet for manufacturing a transfer material that eliminates wrinkles that occur due to changes in environmental temperature and has good storage stability.
It is an object of the present invention to provide a sheet for producing a transfer material, which can be used by sequentially cutting the transfer image forming portion.

(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, a light-impermeable layer is provided on the back side of a transparent or translucent sheet base opposite to the front side on which the image is formed, and the light-impermeable layer and the sheet base are The gist thereof is a sheet for producing a dry transfer material, characterized in that the following are adhered at the edges along at least one pair of opposing sides.

Further, in the present invention, preferably, the sheet base material and the light-opaque layer are configured to have a rectangular shape having approximately the same size.

(Function) In the sheet for producing a transfer material according to the present invention, the transparent or translucent sheet base material and the light-impermeable layer such as paper are bonded at both edges thereof, so that An escape area for expansion and contraction can be effectively formed, and even if the temperature and humidity at the time of bonding the two and the subsequent environmental temperature and humidity are significantly different, the sheet base material will not wrinkle.
This made it possible to preserve it advantageously.

Further, in this transfer material production sheet, after forming a transfer image using a printer or the like, the transfer material production sheet is used to pressure-sensitively transfer the transfer image to a transfer target. This makes it possible to sequentially cut out the formed upper part.

In other words, no matter where the sheet for manufacturing the transfer material is cut from the top, the adhesive edges of the sheet are positioned so as to extend from the top to the bottom, so that both ends (both sides) are glued. In addition, it becomes possible to attach it 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 one embodiment of the present invention, and FIG. 2 is a schematic cross-sectional view taken along the line nn. In those figures, ■ is a sheet for producing a transfer material according to the present invention, and is basically composed of a base sheet 4 and a light-opaque layer 5. The basic sheet 4 is composed of a sheet base material 2 and a releasable coating layer 3 coated on one surface thereof, and a surface of the basic sheet 4 opposite to the releasable coating layer 3 is Adhesive layers 6 are formed with a predetermined width along both opposing edges of the base material 2, and the light-opaque layer 5 is partially adhered to both edges. Note that the releasable coating layer 3 is provided to enhance the releasability of the transferred image when a transferred image is formed thereon and to facilitate transfer to the transfer target. If the material itself has sufficient removability,
There is no particular need.

The sheet base material 2 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.

Further, as the light-opaque layer 5, a light-reflecting layer or a light-absorbing layer is generally adopted, and when a light-reflecting layer is used, it has a reflectance that is sufficient to be detected by a reflective photosensor, for example. The core will be formed using large paper, plastic film, metal foil, etc. 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 layer 6 is usually a known adhesive.

Adhesive 1 is formed with a predetermined width along at least one pair of opposing two sides on one surface of the sheet base material 2 using double-sided tape or the like, and the sheet base material 2 and While the light-opaque layer 5 is attached, it is advantageous that they can be easily peeled off during the transfer operation to the object to be transferred. Of course, this adhesive layer 6
Since the light-impermeable layer 5 is partially adhered to the sheet base material 2, the light-impermeable layer 5 must be treated so that it does not become an obstacle during the transfer operation to the transferred object. If it is possible to do so, the light-opaque layer 5 may be firmly bonded without being easily peelable.

Furthermore, for the releasable coating layer 3, 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, as long as the sheet base 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 control the adhesive properties between the peelable coating layer 3 and the sheet base material 2 or between the light-opaque layer 5 and the sheet base material 2, one or both surfaces of the sheet base material 2 may be To,
It is possible to apply an anchor coat or surface treatment as appropriate.

Then, the transfer material manufacturing sheet 1 formed in this way is printed by a printer equipped with a normal photosensor, etc.
Printing of the transfer pattern 7 as shown in FIG. 3 can be advantageously carried out. That is, during such printing, since the light-opaque layer 5 provided on the back surface of the sheet base material 2 has light reflective or light absorbing properties, a reflective or transmissive photosensor is used to detect the print paper. It is possible to detect the presence/absence 1 position, etc. Therefore, if the transfer pattern 7 is transferred using a normal printer or the like as shown in FIG. 3 while confirming the presence of the sheet L, the target can be easily and reliably A transfer sheet 8 can then be manufactured.

By the way, such a transfer pattern 7 is formed by printing on the releasable coating layer 3 from an ink ribbon using, for example, a commercially available thermal transfer printer. As an ink ribbon for
Colorants such as carbon black, binders such as wax,
A compound consisting of a tackifier such as rosin or, if necessary, a pressure-sensitive adhesive component such as polyacrylic acid ester,
A material coated with heat-resistant plastic 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 a tackifier, 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 polyvinyl chloride, polyacrylic ester, ethylene-vinyl acetate copolymer, ethylene-ethyl, acrylate copolymer, polyvinyl acetate,
One or more of vinyl polymers such as polyvinyl ether, polyvinyl acecool, and polyisobutylene, fiber polymers such as ethyl cellulose, nitrocellulose, and cellulose acetate, and rubber polymers such as chlorinated rubber and natural rubber. used.

By forming the transfer pattern 7 in this way, a transfer material (transfer sheet) 8 as shown in FIG. 3 is manufactured. , the light-opaque layer 5 is attached to the sheet base material 2
After peeling off the sheet or after peeling off the light-opaque layer 5 by cutting out the portion where the transfer pattern 7 is formed, place the transfer sheet 8 at a desired position on the surface of the object to be transferred, and once the position is determined, The transfer pattern 7 is transferred onto the surface of the object by pressing the portion of the transfer pattern 7 onto the surface of the object.

Although each embodiment of the present invention has been described in detail above, the present invention is not limited to such embodiments and may be applied to other embodiments as long as they do not depart from the spirit of the present invention. It should be understood that various changes, modifications, improvements, etc. can be made based on the knowledge of those skilled in the art.

(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 translucent sheet base layer, the sheet When manufacturing transfer materials whose base material must be transparent or translucent, you can use a regular printer, etc., and in addition to being able to easily create and use transfer sheets at home, office, etc. Since the base sheet and the light-impermeable layer are bonded to each other at the edges along at least one pair of opposing sides, wrinkles etc. are not caused due to differences in expansion coefficients. Therefore, it is possible to supply a sheet for producing a transfer material with good storage stability.

Moreover, since the sheet base material and the light-impermeable layer are adhered to each other at both edges, the light-impermeable layer will not be separated from the sheet for manufacturing the transfer material even if the portion where the transferred image is formed is removed. Therefore, there is no problem in mounting the transfer material manufacturing sheet to 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 cross-section taken along the line ■-■ in FIG. be. Further, FIG. 3 is a schematic cross-sectional view corresponding to FIG. 2 of a transfer sheet manufactured using the sheet for manufacturing a transfer material according to the present invention. 1: Sheet for producing transfer material 2: Sheet base material 3: Peelable coating layer 4: Basic sheet 5: Light-impermeable layer 6: Adhesive layer 7:
Transfer pattern 8: Transfer sheet

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,
A light-opaque layer is provided on the back side of a transparent or translucent sheet base material opposite to the front side on which the image is formed, and the light-opaque layer and the sheet base material are combined with at least one of them. A sheet for producing a dry transfer material, characterized in that the sheet is bonded at edges along a pair of opposing sides. (2) The sheet for producing a dry transfer material according to claim 1, wherein the sheet base material and the light-impermeable layer have rectangular shapes of approximately the same size.