JPH01128870A - Sheet for producing dry-type transfer material - Google Patents

Abstract

PURPOSE:To prevent a sheet base from being wrinkled due to variations in environmental temperature or humidity, by providing cutting lines in an opaque layer adhered to the back side of a transparent or semitransperent sheet base. CONSTITUTION:A base sheet 4 comprises a sheet base 2 and a releasable coat layer 3, an adhesive layer 6 is provided on the face side of the base sheet 4 over the entire surface area of the sheet base 2, and an opaque layer 5 is adhered thereto. The opaque layer 5 is provided with cutting lines 9 at regular intervals. Since the opaque layer 5 is light-reflective or light-absorptive, the presence or absence, the position or the like of this printing paper can be detected by a reflectionor transmission-type photosensor. Wrinkling does not occur due to differences between the coefficients of expansion of the layers, and the opaque layer is not separated from the sheet even upon cutting off a part provided with a transferred image.

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, heat-sensitive 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 (Patent Application No. 61-27553).
No. 8).

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 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, if you try to print on a transparent or translucent transfer material production sheet using such a printer to obtain the above-mentioned target dry transfer material, the sheet base material itself of the sheet may be transparent or translucent. Therefore, there is a possibility that the photo sensor may detect that the sheet base material to be darned is not present even though it is 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, in the above sheets for producing transfer materials, when a removable light-impermeable layer such as paper is attached to the sheet base material, the light Due to the difference in expansion coefficient due to the difference in thermal expansion coefficient and hygroscopicity with the impermeable layer, when the difference between the temperature and humidity at the time of adhesion and the subsequent environmental temperature and humidity becomes large, the transfer material manufacturing sheet There was a problem in that the paper became wrinkled, making it impossible to print using a printer or the like.

In addition, in order to avoid such problems caused by wrinkles, the sheet base material and the light-opaque layer may not be bonded over the entire surface, but only the upper part of the light-opaque layer may be bonded, or may be partially bonded here and there. If the sheet is 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. In other words, in a sheet for producing a transfer material with only the upper part adhered, when the transfer image portion formed on the upper part is canted, there is no longer a part to adhere the light-opaque layer to the sheet, and the light-opaque layer is separated. Furthermore, even if a sheet for manufacturing transfer material is partially glued, when it is cut, the top edge of the remaining sheet is not always glued, and printers, etc. There was a risk of wrinkles or bending when setting.

In other words, 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-opaque 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 At the same time, by making cuts in the light-impermeable layer, it is possible to eliminate wrinkles in the sheet that occur due to changes in environmental temperature due to the difference in expansion coefficients between the sheet base material and the light-impermeable layer. An object of the present invention is to provide a sheet for producing a transfer material with good storage stability.

(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 a sheet used for The gist of the invention is a sheet for producing a dry transfer material, which is characterized by having cuts so that multiple areas can be separated and approached as the base material expands and contracts thermally.

(Function) In the sheet for producing a transfer material according to the present invention, the light-impermeable layer attached to the back side of the transparent or translucent sheet base material is cut, thereby preventing expansion and contraction. An escape area 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.

(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, 1 is a sheet for producing a transfer material according to the present invention, which basically consists 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 An adhesive layer 6 is formed over the entire surface of the base material 2, and the light-opaque layer 5 is adhered thereto. Furthermore, cuts 9 are formed at equal intervals in the bonded light-opaque layer 5. In this embodiment, the cuts 9 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. Further, 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. It will be made of 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, plasti, etc. that has a predetermined absorption wavelength. formed by

The adhesive layer 6 is usually a known adhesive.

The adhesive 1 is formed on the entire surface of one side of the sheet base material 2 using double-sided tape, etc., and the sheet base material 2 and the light-opaque layer 5 are adhered on the entire surface thereof. Advantageously, they can be easily peeled off during the transfer operation on the transfer target.

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 If 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 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 To,
It is possible to apply an anchor coat or surface treatment as appropriate.

Then, the transfer pattern 7 can be printed on the transfer material manufacturing sheet l formed in this way using a printer equipped with a normal photosensor, and at that time,
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 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 7 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 8 can 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 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 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 vinyl-based adhesives such as polyvinyl chloride, polyacrylic ester, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, polyvinyl acetate, polyvinyl ether, polyvinyl acecool, polyisobutylene, etc. One or more types of polymers, such as fibrous polymers such as ethyl cellulose, nitrocellulose, and cellulose acetate, and rubber polymers such as chlorinated rubber and natural rubber, are 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 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 explanation, in the sheet for producing a transfer material according to the present invention, a light-impermeable layer is provided on the transparent or translucent sheet substrate. When manufacturing transfer materials that must be transparent or semi-transparent, you can use a normal printer, etc., and in addition to being able to easily create and use transfer sheets at home, office, etc. Even if the base sheet and the light-impermeable layer are completely bonded together, the light-impermeable layer has predetermined cuts, which prevents wrinkles, etc., from occurring due to the difference in their expansion coefficients. Therefore, it is possible to effectively prevent the deterioration of the transfer material, thereby providing a sheet for producing a transfer material with good storage stability.

Furthermore, since the sheet base material and the light-impermeable layer are bonded over the entire surface, even if the portion where the transferred image is formed is removed, the light-impermeable layer will not be separated from the sheet for manufacturing the transfer material. 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 nn cross section in FIG. be. Further, FIG. 3 shows the transfer sheet produced using the sheet for producing a transfer material according to the present invention at III-II in FIG.
It is a cross-sectional schematic diagram corresponding to I cross section. 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 9: Cut Applicant: Brother Industries, Ltd. Book -

Claims (1)

[Claims] A sheet used for manufacturing a transfer material in which an image is formed with a transferable ink so that the image can be transferred to the surface of a predetermined transfer object, a transparent or translucent sheet base material, The light-opaque layer is attached to the back side opposite to the front side on which the image is formed, and the light-opaque layer can be separated and approached into multiple areas as the sheet base material thermally expands and contracts. A sheet for producing dry transfer materials, which is characterized by having cuts in the shape of a sheet.