JPH0729462B2 - Correction sheet and correction method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a correction sheet used for correcting an erroneous recording image formed on a recording medium.

[Conventional technology]

In recent years, along with the rapid development of the information industry, various information processing systems have been developed, and recording methods and apparatuses suitable for the respective information processing systems have also been developed and adopted.
As such a recording method, a thermal transfer recording method and a pressure sensitive transfer recording method have been widely used recently.

However, even in such a thermal transfer recording method and pressure sensitive transfer recording method, there are still some points to be improved. One of them is that the transfer-recorded image obtained by the heat-sensitive transfer recording method or the pressure-sensitive transfer recording method cannot be easily erased even if it is caused by erroneous printing.

As a general means for correcting erroneous recording, use of a concealing paint which has been widely used in recent years can be considered. However, it goes without saying that the use of such a paint requires the work of applying the paint, and depending on the situation, the work of applying the paint may not be appropriate. In particular, depending on the situation of thermal transfer recording, it may be desirable to correct it immediately on the transfer recording device after the discovery of erroneous recording, but it is not appropriate to perform the above-mentioned coating application work on the transfer recording device. . Further, a method has been already proposed in which a thermal transfer material having a heat transferable ink layer containing a concealing colorant having a color substantially the same as the color of a recording medium is used to cover an erroneous recording portion with the transfer ink layer. By using this method,
It is possible to correct it immediately on the transfer recording device,
Since the color of the recording medium and the color of the hiding colorant are not completely the same and the corrected portion is raised by the coating of the ink layer, the corrected portion can be easily discriminated, which is not preferable in appearance.

As a correction method that does not cause such an inconvenience, a method is considered in which the erroneous recording image formed on the recording medium is adhered and separated with a heat-sensitive adhesive tape.

[Problems to be solved by the invention]

However, in the conventional heat-sensitive adhesive tape, the adhesive layer has a single layer structure, and it is very difficult to satisfy both the adhesion to the erroneously recorded image and the adhesion to the support with one adhesive layer. When the adhesive strength between the adhesive layer and the support is satisfied, the adhesive strength between the adhesive layer and the erroneous recording layer image becomes insufficient, or when the adhesive strength between the adhesive layer and the erroneous recording image is satisfied, the adhesive layer and the support The adhesive strength with was insufficient. Also, when the erroneous recording image printed on the recording medium with low surface smoothness is peeled off with the heat-sensitive adhesive tape, the adhesive layer of the correction tape cannot follow the unevenness of the surface of the recording medium, and the convex portion of the recording medium is In some cases, only a certain erroneous recording image can be peeled off, and the recorded image in the concave portion of the recording medium cannot be peeled off, resulting in incomplete correction.

Therefore, it is conceivable to increase the thickness of the adhesive layer of the correction tape to increase the contact area with the erroneously recorded image. However, in a correction tape with a thick adhesive layer, if heat energy is applied until the adhesive layer surface develops sufficient adhesive force, the adhesive layer close to the support will completely melt and soften due to the temperature gradient in the thickness direction. However, there is a drawback that the adhesive strength to the recording medium is lowered, and the adhesive layer is transferred to the recording medium (reverse transfer), making correction impossible.

[Object of the Invention]

The object of the present invention is, except for the above-mentioned drawbacks of the prior art, to have sufficient adhesive force to both the erroneously recorded image and the support,
An object of the present invention is to provide a correction sheet that can follow an erroneously recorded image printed on a recording medium having low surface smoothness to increase the adhesive area and does not cause reverse transfer.

[Means for solving problems]

The present invention has an adhesive layer on a support, the adhesive layer develops an adhesive force by heating, and an erroneous recording image of a recording medium is adhered and peeled off. From at least a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is an interface between the first adhesive layer and the second adhesive layer in the first adhesive layer when heated, or The first
The second adhesive layer does not separate at the interface between the adhesive layer and the support and exhibits an adhesive force when heated, and further has an adhesive layer on the support, and the second In a correction sheet in which an adhesive layer develops an adhesive force, and an erroneously recorded image of a recording medium is adhered and peeled off, the adhesive layer is composed of at least a first adhesive layer and a second adhesive layer in order from the support side, The first adhesive layer is separated at the interface between the first adhesive layer and the second adhesive layer or the boundary between the first adhesive layer and the support in the first adhesive layer when heated. In addition, the second adhesive layer contains not less than 1% by weight and not more than 25% by weight of a resin having a glass transition temperature of 60 ° C. or more, and exhibits adhesive force when heated.

As a result of earnest studies for achieving the above-mentioned object, the present inventor has found that it is difficult to eliminate the above-mentioned drawbacks of the prior art with an adhesive layer having a one-layer structure as in the prior art. By providing another adhesive layer containing a thermoplastic resin between them, the adhesive layer has a function of closely adhering to the support, and the flexibility of this adhesive layer allows printing on a recording medium having low surface smoothness. The inventors have found that the adhesive area can be increased by following an erroneously recorded image, and that the cohesive force of the adhesive layer allows good correction without reverse transfer to the recording medium.

Hereinafter, the present invention will be described in detail with reference to the drawings as necessary. In the following description, “%” and “part” representing the quantitative ratio are based on weight unless otherwise specified.

FIG. 1 is a schematic sectional view in the thickness direction of a correction sheet in the most basic aspect of the present invention. That is, the correction sheet 5 of the present invention has the first adhesive layer 2 and the second adhesive layer 3 on the sheet-shaped support 1 in order from the support side. In the correction sheet of the present invention, the adhesive layers are the first adhesive layer 2 and the second adhesive layer 3, and the first adhesive layer 2 has the function of closely adhering to the support 1.
The second adhesive layer 3 has a function of adhering to the recording medium.

As the support 1, a conventionally known film or paper can be used as it is, and for example, a relatively heat resistant plastic film such as polyester, polycarbonate, triacetyl cellulose, nylon or polyimide, cellophane or sulfuric acid paper, Condenser paper and the like can be preferably used. The thickness of the support is preferably about 1 to 15 microns when a thermal head is considered as a heat source when the erroneously recorded image is adhered and peeled off by heat, but for example, a modification of the present invention such as laser light is used. There is no particular limitation when using a heat source capable of selectively heating the sheet. When using a thermal head, a heat-resistant protective layer made of silicon resin, fluororesin, urethane resin, polyimide resin, epoxy resin, phenol resin, melamine resin, nitrocellulose, etc. is formed on the surface of the support that comes into contact with the thermal head. By providing the support, the heat resistance of the support can be improved, or a support material that cannot be used conventionally can be used.

As the first adhesive layer 2, it is preferable that the first adhesive layer 2 does not completely melt even if it is softened by heating and its adhesion with the support 1 does not decrease. Furthermore, the first adhesive layer 2 has a certain degree of flexibility so that the adhesive layer can follow the irregularities of the erroneously recorded image and make sufficient contact.

Therefore, the first adhesive layer 2 is configured to contain a thermoplastic resin having high cohesive force and high adhesiveness when heated. First
The thermoplastic resin contained in the adhesive layer 2 preferably has a glass transition temperature of -40 ° C to 30 ° C, more preferably -30 ° C to 15 ° C. When the thermoplastic resin is a mixture of a plurality of types of thermoplastic resin, the glass transition temperature Tg _M of such a mixture of thermoplastic resins, When defined as, Tg _M is also preferably within the above temperature range.
That is, even when the thermoplastic resin is a mixture of a plurality of kinds of resins, if the glass transition temperature of the mixture is defined as in the above formula (A), the mixture of the thermoplastic resins is composed of a single resin. Can be considered as a thermoplastic resin.
In the above formula (A), Tgn is the glass transition temperature of one thermoplastic resin forming the thermoplastic resin mixture, W is the total weight of the thermoplastic resin mixture, and Wn is the thermoplastic resin mixture 1 The weight of two thermoplastics. If the glass transition temperature of the thermoplastic resin is too high, the flexibility is lost and the adhesion with the support is lowered. Further, if the glass transition temperature is too low, the viscosity becomes excessive and the handling is hindered.

Further, when the correction sheet is separated from the recording medium, if cohesive failure occurs in the first adhesive layer 2, the adhesive layer remains on the recording medium, and erroneous recording cannot be peeled off. Therefore, the first adhesive layer 2 needs to have high cohesive force when heated. In order to increase the cohesive force of the first adhesive layer 2, the weight average molecular weight of the thermoplastic resin contained in the first adhesive layer 2 is preferably 10,000 or more, more preferably 50,000 or more. The weight average molecular weight referred to here is a value measured by GPC (gel permeation chromatography). When the thermoplastic resin is a mixture of a plurality of resins, the weight average molecular weight means the weight average molecular weight of the whole mixture.

Examples of the thermoplastic resin used for the first adhesive layer 2 include polyvinyl acetate resin such as vinyl acetate-ethylene copolymer, epoxy resin, polyurethane resin, acrylic resin, styrene-butadiene rubber, isoprene rubber and the like. Elastomers can be used. Further, petroleum-based resin, phenol-based resin, melamine-based resin, urea-based resin, polystyrene-based resin may be appropriately mixed and used.
In addition, titanium oxide, clay,
Fillers such as zinc white and hydrated alumina, plasticizers, stabilizers and the like may be appropriately mixed and used.

The first adhesive layer 2 can be obtained by appropriately adjusting the molecular weight and crystallinity of the above materials, or by mixing a plurality of the materials.

The content of the thermoplastic resin in the first adhesive layer 2 is 70% or more
It is preferably 100% or less, more preferably 90% or more and 100% or less.

The thickness of the first adhesive layer 2 is preferably 1 μm or more in consideration of the conformability to a recording medium having low surface smoothness, and is preferably 15 μm or less in consideration of heat conduction. Furthermore, 2-10 micrometers is preferable.

As the second adhesive layer 3, it is possible to use a material that becomes tacky when heat is applied, that is, a heat-sensitive adhesive layer. It is preferable to use a thermoplastic resin compatible with the material forming the erroneous recording image.

Examples of the material used for the second adhesive layer 3 include polyolefin resin such as ethylene-vinyl acetate copolymer and ethylene-acrylic acid copolymer, polyamide resin, polyester resin, epoxy resin, polyurethane resin, Acrylic resins, polystyrene resins, polyvinyl chloride resins, polyvinyl acetate resins such as vinyl acetate-ethylene copolymers, and elastomers such as styrene-butadiene rubber and isoprene rubber can be used.

If necessary, tackifiers such as rosin, modified rosin, adhesive polymer, terpene, modified terpene, coumarone indene resin, hydrocarbons and chlorinated hydrocarbons, petroleum-based resins, phenol-based resins, etc. Wax, paraffin wax, microcrystalline wax, vegetable wax, synthetic wax, and plasticizers such as phthalate, glycolate, polybutene, and mineral oil, and fillers such as talc, baryta, and clay. It is also possible to appropriately mix and use a stabilizer such as hindered phenol.

The second adhesive layer 3 can be obtained by appropriately adjusting the molecular weight and crystallinity of the above materials, or by mixing a plurality of the above materials.

The content of the thermoplastic resin in the second adhesive layer 3 is 40% or more
It is preferably 100% or less, more preferably 60% or more and 100% or less.

Since the second adhesive layer 3 is farther from the heat source than the first adhesive layer 2, cohesive failure is less likely to occur, and separation in the second adhesive layer 3 is less likely. However, in order to further increase the cohesive force of the second adhesive layer 3, a resin having a glass transition temperature of 60 ° C. or higher, for example, polyvinyl alcohol, polyvinyl butyral, polyvinyl pyrrolidone or the like can be appropriately mixed and used. When a resin having a glass transition temperature lower than 60 ° C. is used, not only a proper cohesive force cannot be obtained, but also tackiness occurs even at room temperature, which causes problems in use and storage.

By mixing the resin as described above, the second adhesive layer 3 can be adhered to the erroneously recorded image with an appropriate adhesive force without excessively adhering to the recording medium. The content of the resin in the second adhesive layer 3 is preferably 1% or more and 25% or less. When the content is less than 1%, the cohesive force of the resin of the second adhesive layer may not be sufficiently increased, and when it is more than 25%, the adhesive force is lowered and the correction becomes difficult.

The thickness of the second adhesive layer 3 is 1 to 10 μm in consideration of heat conduction,
Furthermore, 4-8 micrometers is preferable.

In order to obtain the correction sheet of the present invention, it is advisable to add a dispersant such as a surfactant to each of the materials constituting each layer, mix them as an aqueous emulsion, and apply the mixture.

In addition, depending on the material forming each of the layers described above, for example, these materials are mixed with an organic solvent such as methyl ethyl ketone, xylene, or tetrahydrofuran to form a coating solution, and each layer is sequentially coated, or the material forming each layer is selected. So-called hot melt coating may be performed in a molten state by heating and melting.

Also, it is possible to apply each layer by using these methods.

Further, between the first adhesive layer 2 and the second adhesive layer 3, for example, the first adhesive layer
A function for increasing the adhesiveness between the adhesive layer 2 and the second adhesive layer 3,
Alternatively, a layer having another function may be provided.

The planar shape of the correction sheet 5 of the present invention is not particularly limited, but it is generally used in the form of a typewriter ribbon or a wide tape used for line printers and the like.

Next, a correction method using the correction sheet of the present invention will be described.

2 and 3 are schematic cross-sectional views showing a state in which the correction sheet 5 of the present invention is actually used. The correction sheet 5 is
For example, it is installed above or below the thermal transfer ribbon to form a two-stage cassette, and when the erroneous recording image is adhesively peeled off, the cassette is slid downward or upward so that the correction sheet comes into contact with the erroneous recording image. The thermal transfer ribbon is omitted in FIGS. 2 and 3.

Now, when the erroneous recording image 4 is found on the recording medium 6,
The thermal head 8 is moved to the erroneously recorded image 4 together with the correction sheet 5, and the adhesive layer 3 side of the correction sheet 5 is brought into close contact with the erroneously recorded image 4 on the recording medium 6. Further, a heat pulse is applied by the thermal head 8 while supporting the platen 7 from the back surface of the recording medium 6 to heat the correction sheet 5 like the erroneous recording image or the entire area surrounding the erroneous recording image (FIG. 2).

When the correction sheet 5 is heated, the correction sheet 5
The upper first adhesive layer 2 is softened so that it is easy to follow the surface irregularities of the recording medium 6, and the second adhesive layer 3 melts and adheres to the erroneously recorded image 4. After that, the correction sheet 5 recovers the cohesive force of the adhesive layer due to the cooling process by the member 9, and when the correction sheet 5 is separated from the recording medium 6, the erroneous recording image 4 is corrected together with the second adhesive layer 3. The recording medium 6 is moved to the sheet 5 side.
Is peeled off (FIG. 3). The recorded image is recorded so as not to excessively penetrate the recording medium. When the recorded image penetrates deeply into the recording medium, it is difficult to completely separate the recorded image.

Although an example in which a thermal head is used as a heat source for thermal transfer recording has been described above, the same can be applied when another heat source such as a laser beam is used.

Hereinafter, the correction sheet of the present invention will be described more specifically by way of examples.

Example 1 Emulsion (nonvolatile content 40%) using vinyl acetate-ethylene copolymer resin (ethylene content 20%) having a glass transition temperature of 0 ° C. and a weight average molecular weight of 779000 was used on a polyethylene terephthalate film of 6 μm with an applicator. Coating, dry for 1 minute in hot air drying at 80 ℃,
A first adhesive layer having a thickness of 4.0 μm was obtained.

Next, an aqueous dispersion (nonvolatile content 22%) consisting of a mixture of the following formulation 1 was applied on the first adhesive layer using an applicator, and dried for 3 minutes in hot air drying at 55 ° C., A correction sheet of the present invention was completed by providing a second adhesive layer having a thickness of 6.0 μm.

Prescription 1 [Example 2] A mixture of the following formulation 2 was provided as a second adhesive layer on the first adhesive layer obtained in the same manner as in Example 1 in the same manner as the second adhesive layer of Example 1, and the modification of the present invention was performed. Got the sheet.

Prescription 2 [Example 3] On the first adhesive layer obtained in the same manner as in Example 1, an aqueous dispersion (nonvolatile content 25%) consisting of a mixture of the following formulation 3 was applied using an applicator, and the mixture was heated at 55 ° C. 3 during hot air drying
After drying for 1 minute, a 6.0 μm-thick second adhesive layer was provided to obtain a correction sheet of the present invention.

Prescription 3 [Example 4] On the first adhesive layer obtained in the same manner as in Example 1, an aqueous dispersion (nonvolatile matter 22%) composed of a mixture of the following formulation 4 was provided in the same manner as in Example 1 The correction sheet of the present invention was obtained as an adhesive layer.

Prescription 4 Example 5 On the first adhesive layer obtained in the same manner as in Example 1, an aqueous dispersion (nonvolatile content 30%) consisting of a mixture of the following formulation 5 was applied using an applicator, and the temperature was adjusted to 60 ° C. 3 during hot air drying
After drying for 1 minute, a 6.0 μm-thick second adhesive layer was provided to obtain a correction sheet of the present invention.

Prescription 5 Comparative Example 1 Formulation 2 of Example 2 was provided as an adhesive layer on a polyethylene terephthalate film having a thickness of 6 μm to obtain a correction sheet having one adhesive layer. The thickness of the adhesive layer was 6 μm.

[Comparative Example 2] An aqueous dispersion (nonvolatile matter 25:
%) Was provided on a 6 μm polyethylene terephthalate film using an applicator to obtain a correction sheet having one adhesive layer. The thickness of the adhesive layer was 6 μm.

Prescription 6 [Recorded image / erroneously recorded image] Next, using a heat-sensitive transfer ink ribbon made of a resin-based ink, smooth paper with a smoothness of 100 seconds or more and 4-5 seconds with the device shown in FIGS. 4 and 5 are used. It was printed on each rough paper.

The recording method shown in FIGS. 4 and 5 will be described.

Reference numeral 11 is a recording paper as a recording medium, 12 is a thermal transfer recording medium, and as shown in FIG. 5, a thermal transferable ink layer 1 is formed on a substrate 12a.
2b is provided.

When the recording medium 12 is heated to the temperature T ₁ or higher, the thermal transfer ink layer 12b is melted and softened, and an adhesive force with the recording paper surface is generated.
After that, when the recording paper 11 and the recording medium 12 are separated at the peeling position 15, the heated portion of the thermal transfer ink layer 12b is transferred onto the recording paper 11, and a recording image 18 is formed on the recording paper 11. Reference numeral 13 is a thermal head provided with a heating element 13b. The heating element 13b is provided on the substrate 13a. Also, 16 is a thermal head 13
Is a temperature detecting element for detecting the temperature of the substrate 13a, and 17 is a heater for heating the thermal head 13. Thermal transfer recording medium 12
As shown in FIG. 4, both ends of are wound around a delivery roller 21 and a winding roller 22, and are sequentially delivered in the direction of arrow A.

The thermal head 13 is attached to the carriage 24, and presses the back platen 7 with a predetermined pressure while sandwiching the recording paper 11 and the thermal transfer recording medium 12. The carriage 24 moves along the rail 23 in the direction of the arrow B, and recording is performed on the recording paper 11 by the thermal head 13 in accordance with the movement.

Prior to the recording operation, the heater 17 is energized, and the temperature detecting element 16 monitors the temperature of the substrate 13a while the thermal transfer ink layer 12b is formed.
Is controlled to a predetermined temperature T ₀ . The temperature T ₀ is controlled so as to satisfy a condition lower than the transfer start temperature T ₁ of the ink layer 12b.
Usually, T ₀ is set in the range of 35 ° C to 60 ° C, preferably 40 ° C to 50 ° C. The recording medium 12 is heated to the temperature T ₀ while traveling along the thermal head 13.

By doing so, the temperature distribution of the ink becomes smooth, and it is possible to obtain a recorded image that does not excessively penetrate the recording paper.

[Correction result]

The recorded image obtained as described above was corrected by the above-described correction method using the cut sheets of 50 cm in length and 8 mm in width, and the cut sheets of Examples 1, 2, 3, 4, and 5 and Comparative Examples 1 and 2. . The result is first
It is summarized in the table.

Also, using the modified sheets of Examples 1, 2, 3, 4 and 5,
When peeling off the print made on the recording paper with weak paper-to-paper strength,
Peeling occurred to the extent that it did not hinder practical use in the correction sheet of Example 5, but no peeling was observed in Examples 1, 2, 3 and 4.

FIG. 6 shows another example of the method of using the correction sheet of the present invention. According to this method, the peeling position of a correction sheet and a recording medium is changed by a projecting peeling member during correction and during printing, and the adhesive layer is composed of at least two layers, and the correction sheet causes the erroneous recording. The correction sheet is heated in advance before coming into contact with the image, and then heat is further applied to bond the erroneously recorded image to the correction sheet.

That is, according to the method shown in FIG. 6, when the erroneous print image 4 is to be corrected, the peeling member 21 protrudes to shift the peeling position of the correction sheet from the end of the thermal head. When printing on the recording medium, the peeling member 21 is retracted and the recording medium is heated to the thermal head 13.
Will be peeled off at the end of. A heater 17 is provided on the thermal head 13 as in the case of the printing method shown in FIG. 5, and heats the thermal head 13 to a predetermined temperature.

Thus, in order to correct the erroneously recorded image, first, the correction sheet 19 of the present invention installed below the recording medium is slid upward together with the recording medium, and the correction sheet 19 moves the position of the heating element 13b of the thermal head 13 to the position. Set to pass. At this time, the temperature of the thermal head 13 is controlled by the heater 17 and the temperature detecting element 16.

Next, the correction sheet 19 is adhered to the recording medium 11 with the thermal head 13. At this time, the peeling member 21 also projects at the same time and presses the correction sheet 19 onto the recording medium 11. The peeling member 21 may be provided on a carriage, for example.

Thus, while moving the carriage in the direction of the arrow B, the correction sheet 19 is heated by the thermal head 13 so as to form the erroneous recording image or to cover the entire area surrounding the erroneous recording image. Adhere to 4 and move the carriage directly. The thermal head 13 and the peeling member 21 are separated from the recording medium 11. At this time, the correction sheet 19 also separates from the recording medium at the same time.

The erroneously recorded image 4 is a correction sheet when it passes through the peeling member 21.
Transcribed on 19 and the fix is achieved. After the correction of the erroneously printed image 4 is completed, the thermal head 13 and the peeling member 21 are separated from the recording medium 11. At this time, the correction sheet 19 also separates from the recording medium 11 at the same time.

Further, when the correction is not sufficiently performed only once, the above operation may be repeated if necessary.

As described above, the temperature control of the thermal head 13 by the heater 17 and the projecting peeling member 21 make it possible to make the temperature condition of the correction sheet and the peeling timing different from the condition at the time of printing, so that the proper correction can be performed. . In particular, by heating the correction sheet in advance with the heater 17,
The influence of the ambient temperature of the correction sheet can be eliminated. Further, by heating the thermal head 13 with the heater 17, the load on the heating element 13b can be reduced and the durability of the thermal head can be improved.

〔The invention's effect〕

As described above, the correction sheet of the present invention is provided with the first adhesive layer containing the thermoplastic resin between the support and the second adhesive layer, and the first adhesive layer has a cohesive force, an adhesive force at the time of heating, It has flexibility. Therefore, according to the correction sheet of the present invention, reverse transfer does not occur, and it is possible to sufficiently contact even an erroneously recorded image recorded on a recording medium having low surface smoothness, and good correction is possible. Becomes If the second adhesive layer contains a resin having a glass transition temperature of 60 ° C. or higher in an amount of 1% by weight or more and 25% by weight or less, the second adhesive layer does not excessively adhere to the recording medium and the recording on the periphery of the erroneous recording image is prevented. It doesn't strip you away.

[Brief description of drawings]

FIG. 1 is a schematic sectional view in the thickness direction showing an example of the correction sheet of the present invention, FIGS. 2 and 3 are schematic sectional views showing a state in which the correction sheet of the present invention is actually used, and FIG. 4 is a record. FIG. 5 is a plan view showing an example of an apparatus for obtaining an image, FIG. 5 is an enlarged partial view of the periphery of the thermal head shown in FIG. 4, and FIG. 6 is another method using the correction sheet of the present invention. It is a partial view showing an example of. 1 ... Support, 2 ... First adhesive layer, 3 ... Second adhesive layer,
4 ... Misprinted image, 5 ... Correction sheet, 6,11 ... Recorded object, 7 ... Back platen, 8,13 ... Thermal head, 12 ... Recording medium, 16 ... Temperature detection element, 17 ... … Heater, 18 ……
Recorded image, 24 …… Carriage.

Claims (3)

[Claims] 1. A correction sheet having an adhesive layer on a support, wherein the adhesive layer develops an adhesive force by heating, and an erroneously recorded image of a recording medium is adhered and peeled off. It is composed of at least a first adhesive layer and a second adhesive layer in order from the support side, and the first adhesive layer is an interface between the first adhesive layer and the second adhesive layer in the first adhesive layer when heated. Alternatively, the correction sheet is characterized in that it does not separate at the boundary between the first adhesive layer and the support, and the second adhesive layer exhibits an adhesive force when heated. 2. A correction sheet having an adhesive layer on a support, wherein the adhesive layer develops an adhesive force by heating, and an erroneously recorded image of a recording medium is adhered and peeled off. It is composed of at least a first adhesive layer and a second adhesive layer in order from the support side, and the first adhesive layer is an interface between the first adhesive layer and the second adhesive layer in the first adhesive layer when heated. Alternatively, the second adhesive layer does not separate at the boundary between the first adhesive layer and the support, and the second adhesive layer contains 1% by weight or more and 25% by weight or less of a resin having a glass transition temperature of 60 ° C. or more,
A correction sheet which exhibits an adhesive force when heated. 3. A correction sheet comprising a correction sheet having an adhesive layer on a support, wherein the correction sheet is heated to adhere and separate the erroneously recorded image of the recording medium. Peeling is performed at a position different from the peeling position between the recording medium and the recording medium, and the adhesive layer has at least two layers, and the correction sheet is attached before the correction sheet comes into contact with the erroneous recording image. A correction method characterized in that the erroneously recorded image is adhered to the correction sheet by applying a heat to the correction sheet in advance.