JPH1170795A - Pressure-sensitive transfer medium and pressure-sensitive transfer jig using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pressure-sensitive transfer medium concealing a character of the specific part of a receiving material such as printed matter or the like regardless of the kind of the receiving material such as paper or the like without damaging the receiving material to see the same only at a necessary time and a pressure-sensitive transfer jig fitted to the use thereof. SOLUTION: A thermal coloring agent reversibly changed between a state opaque at predetermined temp. or lower and a state transparent at temp. higher than the predetermined temp. is added to the color transfer layer 30 provided on the single surface of the base material of a pressure-sensitive transfer medium T. A pressure-sensitive transfer jig is formed by providing a supply reel having the pressure-sensitive transfer medium T formed into a tape form wound therearound, a pressure-sensitive head transferring the color transfer layer of the pressure-sensitive transfer medium to a receiving material while peeling the same from the base material and a taking-up reel taking up the base material remaining after transfer use in a container held and used by one hand.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-sensitive transfer medium capable of concealing a character or the like in a specific portion of a transfer object such as a printed matter so that the character can be viewed only when necessary, and a method for specifying the transfer medium. The present invention relates to a pressure-sensitive transfer device suitable for transferring to a portion.

[0002]

[Prior art] In order for students and others to memorize efficiently,
A felt pen type marker pen is widely used.

As a memorization method using a marker pen, it is general to simply color a portion to be memorized, such as a printed matter, with the ink (marker liquid) of the marker pen.

However, in order to memorize more efficiently,
It is conceivable to temporarily hide characters and the like in a specific portion, and various methods using a marker pen have been proposed for that purpose.

For example, in Japanese Patent Publication No. 57-37871, a marker pen using a marker liquid having a darker color than usual is combined with a transparent sheet colored with a color complementary to the color of the marker liquid. It has been proposed.

[0006] According to the above-mentioned combination, a portion colored with a marker liquid (a character or the like can still be seen at this stage), such as a printed matter, is covered with a sheet and darkened (blackened), whereby Partial characters and the like can be temporarily hidden.

[0007] Examples of combinations of the colors of the marker liquid and the sheet include green and red.

[0008] Japanese Patent Publication No. 56-37076 discloses that
A method of applying an alkaline solution to a portion colored with a marker solution, such as a printed matter, and reducing and decomposing the dye of the marker solution to eliminate the color has been disclosed. A combination of a marker pen using a dark marker liquid and an achromatic pen (felt pen filled with an alkaline liquid) has been considered.

[0009]

However, in any of the above methods, since a water-soluble marker liquid is used as the marker liquid, it can be easily colored on a good water-absorbing material such as high quality paper. However, there is a problem that coloring cannot be performed on materials having poor water absorption such as coated paper.

In the former method, a special color sheet is required as described above, and there is a problem that the above method cannot be performed if the sheet is lost or forgotten.

Further, since the size and shape of the sheet are limited, there is a problem that it is not easy to hide a very narrow area, a wide area, or an area having a complicated shape such as a printed matter. It is conceivable to cut out the sheet into a shape adapted to a specific area, but in that case, a new problem arises in that the sheet cannot be diverted to another area having a different size or shape.

On the other hand, in the latter method, it is difficult to completely eliminate the color, especially when a marker liquid having a color dark enough to make characters invisible is used, as described above. When a large amount of alkaline solution is applied to forcibly erase the color, there is a problem that a transfer target such as paper is damaged.

Further, if the above method is repeated at the same place many times, there is still a problem that the paper is damaged.

An object of the present invention is to conceal a character or the like in a specific portion of a transferred object such as a printed matter, irrespective of the type of the transferred object such as paper, and without damaging the transferred object, and to perform the processing only when necessary. It is an object of the present invention to provide a pressure-sensitive transfer medium capable of being viewed and a pressure-sensitive transfer tool suitable for transferring the medium onto a specific portion of a transfer target.

[0015]

According to the present invention, there is provided a pressure-sensitive transfer medium according to the present invention, wherein a colored transfer layer provided on one side of a substrate is opaque at a predetermined temperature or lower, and is transparent at a higher temperature. It is characterized by containing a heat-sensitive colorant that reversibly changes between two states.

In the pressure-sensitive transfer medium of the present invention having the above-described structure, when the colored transfer layer transferred onto the transfer object such as paper is heated by touching it with a finger, for example, the heat-sensitive colored The agent becomes transparent so that hidden characters and the like become visible. Further, if the heat-sensitive coloring agent is cooled by being left as it is for a while, the heat-sensitive coloring agent becomes opaque and the characters and the like are hidden again. This change in the state of the heat-sensitive colorant can be repeated many times reversibly according to the temperature. Therefore, according to the present invention, it is possible to conceal a character or the like in a specific portion of a transfer-receiving body such as a printed matter and to see it only when necessary.

The above-mentioned colored transfer layer is solid and is transferred from a base material onto a transfer object such as paper due to its own adhesive force. Therefore, transfer is possible regardless of the type of transfer object. Yes, and does not hurt the transferred body unlike the marker liquid and the alkaline liquid.

Further, the pressure-sensitive transfer tool of the present invention comprises a supply reel on which the tape-shaped pressure-sensitive transfer medium is wound, and a colored transfer layer of the pressure-sensitive transfer medium supplied from the supply reel. It is characterized in that a pressure-sensitive head for transferring to a transfer-receiving body while being peeled off and a take-up reel for winding up a substrate remaining after transfer use are provided in a container that can be used with one hand for holding. .

According to the above-described pressure-sensitive transfer tool, the pressure-sensitive transfer medium fed out from the supply reel is held while holding the body with one hand and pressing the pressure-sensitive head against a required portion of the transfer target such as a printed material. Of these, the colored transfer layer may be transferred to the transfer target, and the base material remaining after the transfer is used is collected on a take-up reel.

As described above, according to the pressure-sensitive transfer device of the present invention, it is possible to easily transfer the colored transfer layer to a required transfer portion by using one hand.

[0021]

Next, embodiments of the present invention will be described in order from a pressure-sensitive transfer medium.

As described above, the pressure-sensitive transfer medium is constituted by adding a heat-sensitive coloring agent to the colored transfer layer provided on one side of the substrate.

As the heat-sensitive colorant, any of various conventionally known colorants having a function of reversibly changing between two states, that is, opaque at a predetermined temperature or less and transparent at a higher temperature depending on the temperature, are used. It is possible.

As such a heat-sensitive coloring agent, for example, among redox dyes (so-called leuco dyes), it is stable in a type (usually an oxidized type) that exhibits a dark color at around normal temperature, and when it becomes higher than a predetermined temperature, it is reduced (or Oxidation), the structure of which changes to a colorless or pale color type (usually a reduced type) according to the progress of the oxidation.

Further, in order to protect the state change of the heat-sensitive colorant from environmental conditions, particularly, in the case of a redox dye, the heat-sensitive colorant is microencapsulated to protect the heat-sensitive colorant from oxidation by oxygen in the air. It is preferable to use one that has been used.

Further, as the heat-sensitive colorant, in order to facilitate the compounding operation into the color transfer layer and to improve the dispersibility,
It may be used by dispersing it in a suitable vehicle to form an ink.

The boundary temperature at which the thermal colorant changes state from opaque to transparent or from transparent to opaque is not particularly limited, but in order to cause the above change when touched with a finger or the like, the above-mentioned boundary temperature must be , About 24 to 35 ° C.

If the boundary temperature of the state change is less than the above range, the heat-sensitive colorant easily becomes transparent due to a slight rise in the temperature, so that characters and the like may not be sufficiently concealed. Further, when the boundary temperature exceeds the above range, even if the boundary temperature is touched by a finger or the like, it may not easily become transparent.

The color of the heat-sensitive colorant at the time of opacity is not particularly limited, as long as it is opaque and can conceal the characters on the base. For example, black, red,
It is preferably a dark color such as blue or green.

Specific examples of such a heat-sensitive colorant include, but are not limited to, "Kuromi Color Gravure Ink Black # 27" (trade name, manufactured by Matsui Pigment Co., Ltd.) (ink-like, boundary temperature 24 to 33 ° C.). , Color: black ← → transparent), product name “TC oil-based ink black” manufactured by Nippon Prism Co., Ltd. (ink-like, boundary temperature 29 ° C., color: black ← → transparent), also manufactured by Nippon Prism Co., Ltd. The name “TC microcapsule black” (microcapsule shape, boundary temperature 29 ° C., color: black ← → transparent), the product name “T” manufactured by Recording Materials Research Institute, Ltd.
thermal Color OR-30 "(ink-like,
Boundary temperature 25-35 ° C., color: black ← → transparent).

The layer structure of the color transfer layer containing the above-mentioned heat-sensitive colorant is not particularly limited, and may be the same as the layer structure of a conventionally known pressure-sensitive transfer medium such as a correction tape or a normal marker tape. it can.

That is, the colored transfer layer may have a single-layer structure or a multilayer structure as shown in FIGS. 1 (a) and 1 (b).

The color transfer layer 30 of the pressure-sensitive transfer medium T shown in FIG. 1A has a two-layer structure of a release layer 31 and a pressure-sensitive adhesive layer 32 which are sequentially laminated on one side of the substrate 20. One or both of these layers contain a heat-sensitive colorant.

The colored transfer layer 30 of the pressure-sensitive transfer medium T shown in FIG. 1B is composed of a release layer 3 sequentially laminated on one side of the substrate 20.
1. It has a three-layer structure of a coloring layer 33 containing a heat-sensitive coloring agent and a pressure-sensitive adhesive layer 32.

The release layer 31 is formed of a conventionally known non-tacky resin such as an epoxy resin, an acrylic resin, a polyester resin, a cellulose resin, and a polyamide resin.

The release layer 31 is formed by applying a coating solution obtained by dissolving or dispersing the above-mentioned resin or the like in an appropriate solvent on one surface of the substrate 20 and drying it.

The thickness of the release layer 31 is not particularly limited.
It is preferably about 1.5 g / m ² . Release layer 31
If the thickness is less than this range, a sufficient peeling effect may not be obtained. Conversely, if the thickness exceeds this range, a so-called wall drop phenomenon in which the colored transfer layer 30 naturally peels from the base material 20 may occur. May occur. Note The above coating amount, 0.1 to 1.0 g / m ² approximately even within the above range, and even more preferably, especially 0.2-0.5 g / m ² approximately.

The pressure-sensitive adhesive layer 32 is made of a conventionally known material such as an acrylic emulsion, natural rubber, a styrene-butadiene copolymer, a butadiene copolymer, an acrylate copolymer, a vinyl ether copolymer, and ethylene vinyl alcohol. The pressure-sensitive adhesive is applied to one surface of the release layer 31 in the case of FIG. 1A, and the colored layer 33 in the case of FIG.
Is formed by applying it on one side of and drying it.

As the above-mentioned pressure-sensitive adhesive, an acrylic emulsion is particularly preferably used.

The thickness of the pressure-sensitive adhesive layer 32 is not particularly limited.
It is preferably about 0 g / m ² . If the thickness of the pressure-sensitive adhesive layer 32 is less than this range, the colored transfer layer 30 may not be able to be satisfactorily transferred to the transfer target. If the thickness exceeds this range, the pressure-sensitive transfer medium T may be rolled. When wound around, the colored transfer layer 30 may be transferred to the surface of the wound substrate 20. The amount of the above coating is about 3 to 8 g / m ² , especially ⁴ to 6 g / m ² even within the above range.
More preferably, it is about ² .

When the pressure-sensitive transfer medium T of the present invention is used for, for example, memorization, the colored transfer layer 30 that has been transferred to the transfer receiving body and memorized has been subjected to peeling friction with an eraser or the like. It is preferable that the material has easy releasability that can be easily removed from the transfer target.

The separation friction in the present invention is defined as J
Using an eraser (manufactured by Tombow Pencil, product number: PE-01A) in accordance with the measurement method described in IS L0849,
The friction refers to rubbing the surface of the colored transfer layer 30 about 10 times with a load of 900 g.

When the color transfer layer 30 is used for memorization, the colored transfer layer 30 is transferred to an incorrect position (a part that the user does not want to memorize) on the object to be transferred, and the position of the colored transfer layer 30 on the object is transferred. Since it is conceivable to change (that is, re-attach) the colored transfer layer 30 rubs off with an eraser or the like, the transfer member may be damaged or the colored transfer layer 30 may be damaged regardless of the type of the transfer member. It is preferable that the material has easy releasability that can be easily removed from the transferred object without leaving it on the transferred object.

For this purpose, the adhesive force of the pressure-sensitive adhesive layer 32 is determined to be 200 g by a measuring method based on JIS Z 0237.
/ Cm or less.

The adhesive force of the pressure-sensitive adhesive layer 32 is 200 g / cm
When the value exceeds the above, the colored transfer layer 30 may not be easily removed from the transferred object by peeling friction with an eraser or the like without damaging the transferred object.

By using the pressure-sensitive adhesive layer 32 having such an adhesive force, for example, when using a pressure-sensitive transfer medium at a time or place where the temperature is low, the temperature of the finger or the transfer-receiving material is reduced by the temperature of the heat-sensitive colorant. Even when the temperature is lower than the boundary temperature and the colored transfer layer 30 does not easily become transparent just by touching it with a finger or the like, the surface of the colored transfer layer 30 is rubbed with a finger or the like to such an extent that the surface of the colored transfer layer 30 is not peeled off from the object to be transferred. , The colored transfer layer 30 can be made transparent.

The heating friction in the present invention refers to friction in which the surface of the colored transfer layer 30 is rubbed with a finger or the like to such an extent that the surface of the colored transfer layer 30 is not peeled off from the object to be transferred, and frictional heat is applied to the surface of the colored transfer layer 30. .

The holding force of the pressure-sensitive adhesive layer 32 at 0 ° C. can be obtained by holding it for 60 minutes by a measuring method based on JIS Z 0237. In particular, the holding force at 40 ° C. is 60 °. Best results are obtained with 5 mm in minutes.

When the holding force of the pressure-sensitive adhesive layer 32 is weak, the sharpness of the colored transfer layer 30 is deteriorated, and there is a possibility that transfer failure occurs. Further, if the holding force is weak, the stability of the adhesive strength is lacking, and the transfer may be hindered.

In the colored transfer layer 30 shown in FIG. 1B, the colored layer 3 formed between the release layer 31 and the pressure-sensitive adhesive layer 32 is formed.
3 is formed of a conventionally known resin such as a polyamide resin, a nitrocellulose resin, an ethylcellulose resin, and an acrylic resin.

The coloring layer 33 is formed by applying a coating solution in which the above-mentioned resin or heat-sensitive coloring agent or the like is dissolved or dispersed in an appropriate solvent to one surface of the peeling layer 31 and drying.

The thickness of the coloring layer 33 is not particularly limited, but is preferably about 20 to 100 μm, particularly preferably about 20 to 50 μm.

If the thickness of the colored layer 33 is less than this range, characters and the like may not be concealed sufficiently. If the thickness is more than this range, the flexibility of the pressure-sensitive transfer medium T decreases, and Transfer may not be performed, or the colored transfer layer 30 transferred onto the transfer target body may rise and may be easily scraped off. Further, there is a possibility that the colored layer 33 is unlikely to cause a change in the state of transparent to opaque due to a temperature change.

The substrate 20 supporting the above-mentioned colored transfer layer 30
Conventionally known films such as glassine paper, cellophane film, acetate film, polypropylene film, polyethylene film and polyester film can be used. In addition, in order to transfer the colored transfer layer 30 more reliably, it is preferable that one or both surfaces of the base material 20 be release-treated with a silicone resin or the like.

The thickness of the substrate 20 depends on the material.
It is preferably about 50 μm. When the thickness is less than 5 μm, it is easy to tear or cut, and conversely, 50 μm
If it exceeds, the transfer of the colored transfer layer 30 to the transfer target may be difficult.

Next, an embodiment of the pressure-sensitive transfer tool will be described.

FIGS. 2 (a) and 2 (b) show the entirety of the pressure-sensitive transfer tool. Reference numeral 10 denotes a body serving as a main body of the pressure-sensitive transfer tool which can be gripped and used with one hand. Are formed by uniting the half bodies 10a and 10b. T is the pressure-sensitive transfer medium described above, and is in the form of a long tape.

Reference numeral 11 denotes a supply reel around which the pressure-sensitive transfer medium T is wound, and reference numeral 12 denotes a pressure-sensitive head. The pressure-sensitive head 12 includes a pressure-sensitive transfer medium T supplied from the supply reel 11.
Of these, the colored transfer layer 30 is transferred to the transfer target A while being peeled from the base tape 20. 13
Denotes a take-up reel that winds up the base tape 20 remaining after transfer use via the rollers R or pins.

The pressure-sensitive head 12 has a tip 12a
The lower part is exposed to the outside of the body 10 so that the lower part becomes the pressure-sensitive transfer part 12b and the upper part becomes the return part 12c of the base tape 20, and the support part 12d of the pressure-sensitive head 12 is The shaft 14 is elastically supported.

Reference numeral 40 denotes a supply reel 11 from the shaft support 14 portion.
FIG. 4 shows a resilient plate provided in the middle of the passage of the pressure-sensitive transfer medium T between the pressure-sensitive transfer medium T and the pressure-sensitive transfer medium T;
In contact with the base tape 20 to maintain a good tension state on the pressure-sensitive transfer medium T. In the illustrated case, the elastic plate 40 is provided on the support portion 1 of the pressure-sensitive head 12.
Although formed integrally from 2d, separate members may be used.

The supply reel 11 and the take-up reel 13 mesh with a gear G1 on the supply reel 11 side and a gear G2 on the take-up reel 13 so as to rotate in opposite directions in conjunction with each other. The supply reel 11 is equipped with a brake mechanism (not shown), and is rotated only in the feeding direction of the pressure-sensitive transfer medium T.

In the figure, reference numeral 50 denotes a concave portion of the body 10 formed so as to be easily pressed by the index finger when gripped with one hand. Easy to do.

When the pressure-sensitive transfer tool grips the container body 10 with one hand, particularly applies an index finger to the concave portion 50, and moves the pressure-sensitive head 12 onto the transfer target A while pressure-sensitively moving the same. Only the colored transfer layer 30 of the pressure transfer medium T is peeled off from the base tape 20 and is transferred to the transfer target A.

The structures of the pressure-sensitive transfer medium and the pressure-sensitive transfer tool of the present invention are not limited to the examples shown in the drawings described above.

For example, the use of the pressure-sensitive transfer medium of the present invention is not limited to memorization, but can also be applied to uses such as confidentiality for keeping account numbers, personal identification numbers, and the like from the eyes of a third party.

In this case, the adhesive force of the pressure-sensitive adhesive layer 32 is set to be higher than the above range so that the colored transfer layer 30 transferred to the transfer object cannot be easily removed with an eraser or the like. Is preferred.

Further, it is preferable to set a higher boundary temperature for a change in the state of the heat-sensitive colorant in order to prevent the liquid crystal from being easily transparentized by touching with a finger. For example, setting the boundary temperature to about 80 ° C. and heating the colored transfer layer 30 with a hair dryer or the like to read the characters and the like written thereon is preferable from the viewpoint of confidentiality. .

Further, the pressure-sensitive transfer tool is not limited to the one shown in the figure which can be used by holding with one hand, but may be of various shapes such as a pen type.

Various other changes can be made without changing the gist of the present invention.

[0070]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments.

Example 1 A polyethylene terephthalate film (dia MRN, manufactured by Mitsubishi Chemical Co., Ltd.) having a thickness of 25 μm was used as a base material, and a release agent having the following composition 1 was applied to one surface of the base material. It was applied so as to be 1 g / m ² , dried, and subjected to a release treatment.

Composition 1-83.2 parts by weight of silicone resin [SD7223 manufactured by Toray Dow Corning Co., Ltd.]-Catalyst 0.1 parts by weight [SRX212 manufactured by Toray Dow Corning Co., Ltd.]-16.7 parts by weight of toluene A coating liquid for a release layer having the following composition 2 is applied to the surface of the above-mentioned base material opposite to the release-treated surface such that the coating amount of the solid content in the coating solution is 0.3 g / m ^2. And dried to form a release layer.

Composition 2 Ethyl cellulose 5 parts by weight Toluene 95 parts by weight Next, a coating solution for a colored layer of the following composition 3 is applied on the above-mentioned peeling layer so that the thickness after drying becomes 60 μm, and dried. To form a colored layer.

Composition 3 • 15 parts by weight of polyamide resin [Versamide 756 manufactured by Henkel Hakusui Co., Ltd.] • 25 parts by weight of thermal coloring agent [Chrome color gravure ink black # 27 manufactured by Matsui Dyestuffs Co., Ltd. mentioned above]・ Toluene 30 parts by weight ・ Isopropyl alcohol 30 parts by weight Next, a coating solution for the pressure-sensitive adhesive layer having the following composition 4 was applied onto the coloring layer so that the coating amount of the solid content in the coating solution was 4 g / m ^2. It is applied and dried to form a pressure-sensitive adhesive layer.
A pressure-sensitive transfer medium provided with a colored transfer layer having the layer configuration shown in (b) was produced.

Composition 4 Acrylic resin emulsion 60 parts by weight [S9059 manufactured by Asahi Kasei Co., Ltd.] Water 40 parts by weight Example 2 In place of the heat-sensitive coloring agent of the composition 2, the above Nippon Prism Co., Ltd. A pressure-sensitive transfer medium was produced in the same manner as in Example 1, except that 25 parts by weight of TC oil-based ink black was used.

Example 3 The same procedure as in Example 1 was carried out except that the above-mentioned TC Microcapsule Black manufactured by Nippon Prism Co., Ltd. was used in an amount of 25 parts by weight instead of the heat-sensitive colorant of Composition 2. A pressure transfer medium was manufactured.

Example 4 In place of the heat-sensitive colorant of the composition 2, Thermal Color OR- manufactured by Recording Materials Research Institute, Ltd.
A pressure-sensitive transfer medium was produced in the same manner as in Example 1 except that 25 parts by weight of No. 30 was used.

Practical Test The pressure-sensitive transfer medium of each of the above embodiments was slit into a tape having a width of 6 mm and a length of 3 m, and the pressure-sensitive transfer tool [manufactured by General Co., Ltd.] shown in FIGS. And the product name “Clear” was wound around the supply roll 11 and mounted in the container 10.

Using the above-described pressure-sensitive transfer tool, the color transfer of the pressure-sensitive transfer medium of each example was performed on PPC paper (paper diamond manufactured by Mitsubishi Paper Mills) on which characters were printed in advance. When the layers were transferred, the characters could be sufficiently hidden in any of the examples.

When the colored transfer layer in which the characters were concealed was heated by touching it with a finger for 1 second, the colored transfer layers became transparent and the characters below could be read in any of the examples.

Further, when this state was left for a while, the colored transfer layer was 3 to 4 in each of the examples.
After a few seconds, it became opaque again, obscured the letters, and became unreadable.

Next, the colored transfer layer in which the characters were hidden was
Eraser (manufactured by Tombow Pencil, part number: PE-01) according to the measurement method described in IS L0849 (test machine: “Clock Meter” manufactured by Yasuda Seiki Seisaku-sho, Ltd.)
A) was rubbed about 10 times with a load of 900 g using A). In any of the examples, the colored transfer layer could be easily peeled off without damaging the characters and the PPC paper.

[0083]

As described in detail above, according to the present invention,
Pressure-sensitive transfer that allows you to conceal characters and other parts of a specific part of a printed material, such as printed matter, and view it only when necessary, regardless of the type of transferred material, such as paper, and without damaging the transferred material This has a specific function and effect that a medium and a pressure-sensitive transfer device suitable for transferring the medium to a specific portion of the transfer object can be provided.

[Brief description of the drawings]

FIGS. 1A and 1B are cross-sectional views each showing an example of a layer configuration of a pressure-sensitive transfer medium of the present invention.

FIG. 2 is a view showing an example of an embodiment of the pressure-sensitive transfer device of the present invention, wherein FIG. 2 (a) is a cross-sectional view and FIG. 2 (b) is a side view.

[Explanation of symbols]

 Reference Signs List 10 container body 11 supply reel 12 pressure-sensitive head 13 take-up reel 20 base material 30 colored transfer layer 31 release layer 32 pressure-sensitive adhesive layer 33 colored layer T pressure-sensitive transfer medium

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Atsushi Hosoya 1091 Tateishi, Fujioka-shi, Gunma Mitsubishi Pencil R & D Center (72) Inventor Nori Takashita 1091 Tateishi, Fujioka-shi, Gunma R & D Mitsubishi Pencil Inside the center (72) Inventor Yasuaki Hagiwara 1091 Tateishi, Fujioka City, Gunma Prefecture Inside the Mitsubishi Pencil R & D Center

Claims (6)

[Claims] 1. A pressure-sensitive transfer medium having a colored transfer layer provided on one side of a substrate, wherein the colored transfer layer is reversibly changed between two states: opaque at a predetermined temperature or lower and transparent at a higher temperature. A pressure-sensitive transfer medium characterized by containing a heat-sensitive colorant. 2. The boundary temperature at which the state of the heat-sensitive colorant changes,
2. The pressure-sensitive transfer medium according to claim 1, wherein the temperature is 24-35 [deg.] C. 3. A color transfer layer comprising a release layer and a pressure-sensitive adhesive layer sequentially laminated on a substrate, wherein at least one of the two layers contains a heat-sensitive colorant. The pressure-sensitive transfer medium according to the above. 4. The pressure-sensitive transfer medium according to claim 1, wherein the color transfer layer comprises a release layer, a heat-sensitive colorant-containing color layer, and a pressure-sensitive adhesive layer, which are sequentially laminated on a substrate. 5. The pressure-sensitive transfer medium according to claim 1, wherein the colored transfer layer has easy releasability so that the color transfer layer is removed from the transfer object when the friction transfer occurs after the transfer to the transfer object. 6. A supply reel in which the pressure-sensitive transfer medium according to claim 1 is wound in a tape form, and a colored transfer layer of the pressure-sensitive transfer medium supplied from the supply reel. A pressure-sensitive head that transfers a material to a transfer target while peeling it off from a material, and a take-up reel that winds the substrate remaining after the transfer is used, are equipped in a container that can be used with one hand. Pressure transfer tool.