JPH11198593A - Application film for heat-transfer mark - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film wherein the gloss of the surface of a body to be attached does not drastically change, and the contamination resistance does not deteriorate regarding an application film to transfer a heat-transfer mark to the body to be attached comprising a flexible vinyl chloride resin. SOLUTION: An adhesive layer 22 on a base material 21, is constituted of a rubber based adhesive composition containing a base polymer containing a copolymer wherein (meth)acrylic acid alkyl is graft-polymerized with natural rubber or polyisoprene, and a styrene-butadiene copolymer, a tackifier comprising an aliphatic or alicyclic petroleum resin, and a softener comprising di-2- ethylhexyl phthalate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal transfer mark application film.
The present invention relates to a thermal transfer mark application film suitable for a thermal transfer mark of a marking member to be thermally transferred to an adherend made of a soft vinyl chloride resin containing di-2-ethylhexyl phthalate, that is, a transfer work. Note that, when used in the specification of the present application, the “thermal transfer mark” means a thermal transfer mark of a marking member having a heat-sensitive adhesive, and is a structure of a vehicle such as a motorcycle, a passenger car, a truck, a display, or the like. Refers to various marks to be transferred to the adherend by the thermal transfer process, such as logos and designs.

[0002]

2. Description of the Related Art Conventionally, a marking member cut with an arbitrary design is attached to a vehicle body, a bumper, a hood, a seat, or the like for decoration of a motorcycle, a car, a truck, or the like. In addition, an application film is used as a support for accurately and neatly attaching such a marking member to an arbitrary position without destroying the positional relationship.

[0003] By the way, motorcycle seats and truck hoods as adherends on which marking members are to be adhered are usually made of a soft vinyl chloride resin leather containing di-2-ethylhexyl phthalate as a plasticizer. And the surface thereof is embossed for the purpose of improving the appearance. When attaching a marking member to such a special adherend, a marking member or a mark having a layer made of a pressure-sensitive adhesive (hereinafter, also referred to as “adhesive”), which has been widely used in the past, is used. If a marking member is used that also has a function as an adhesive on the ink layer to be composed, if the surface of the adherend is smooth, it can be easily applied using a jig such as a squeegee. Although it is possible to attach the marking member, since most of the adherends are embossed as described above, the marking member is in a state of being sufficiently pressed against the concave portion particularly due to the unevenness of the surface. It is difficult to attach the squeegee, and a complicated process such as a squeegee operation is indispensable to obtain a sufficient pressure bonding. Also, for example, in the case of an adherend, such as a motorcycle seat, which must always receive a large frictional force due to the driver's seat even if sufficient crimping can be performed using a crimping jig made of a flexible material However, since the pressure-sensitive adhesive of the marking member inherently has removability, the mark is likely to be turned or peeled at an early point after application. Therefore, when attaching a marking member to such an adherend, use a heat-sensitive adhesive instead of the pressure-sensitive adhesive,
It is advantageous to thermocompress.

With respect to application films, various types have conventionally been proposed, and various types of pressure-sensitive adhesives are applied to the surface of the substrate. For example, JP-A-7-138540 discloses an application film in which a pressure-sensitive adhesive layer is provided on one surface of a base material made of a thermoplastic resin, and is used when a marking sheet is applied. Discloses an application film for a marking sheet characterized by being rich in flexibility and rubber elasticity. More specifically, in the case of this application film, an acrylic pressure-sensitive adhesive layer containing butyl acrylate as a main component is formed on one surface of a base film formed by calendering a mixture of a polyvinyl chloride resin, a plasticizer, and a stabilizer. Provided. When such an application film is used, it is possible to obtain an effect that the marking sheet can be transferred to a small convex curved surface without wrinkling or whitening due to the flexibility and rubber elasticity of the base film.

[0005] Among the adherends, the above-mentioned motorcycle seats and truck hoods are made of a soft vinyl chloride resin leather containing di-2-ethylhexyl phthalate as a plasticizer as described above. When a thermal transfer mark is heat-pressed to this, "shininess" originating from the plasticizer caused by the heating is generated on the leather surface of the adherend, and the gloss significantly changes. In the case of motorcycle seats, etc., it is understood that when the driver sits on the site where the thermal transfer mark is stuck, it is probably due to the plasticizer in the soft vinyl chloride resin,
Contamination near the mark becomes noticeable. The problem of such a remarkable change in gloss on the surface of the adherend and deterioration of stain resistance is described in Japanese Patent Laid-Open Publication No.
No recognition has been made in patent documents such as 8540.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art by using a soft vinyl chloride resin leather containing di-2-ethylhexyl phthalate as a plasticizer. When the thermal transfer mark is heat-pressed to an adherend whose surface is embossed, the gloss of the leather surface does not significantly change, and after attaching the thermal transfer mark, it is used as a motorcycle seat or the like. An object of the present invention is to provide a thermal transfer mark application film which does not deteriorate the stain resistance of the sheet even though a large frictional force due to the driver's weight or movement is applied to the sheet.

[0007]

Means for Solving the Problems The present inventors have conducted intensive studies to achieve the above-mentioned object, and as a result, (1) from the leather of a soft vinyl chloride resin containing di-2-ethylhexyl phthalate as a plasticizer. When the thermal transfer mark is attached to an adherend, particularly when the thermal transfer mark is attached to an adherend such as a motorcycle seat that is directly subjected to friction caused by driver's seating. However, it is useful to use a heat-sensitive adhesive instead of a pressure-sensitive adhesive because pressure-sensitive adhesives that are inherently re-peelable tend to cause marks to turn or peel off during use of the sheet. (2) Providing an application film in which the gloss of the leather surface of the soft vinyl chloride resin as the adherend does not significantly change or the stain resistance does not deteriorate during use of the adherend. The properties characteristic of the pressure-sensitive adhesive to be used is greatly affected by the film, are specifically required,
It was found that heat resistance during heat compression was good, it had cohesive properties, and there was no transfer of the adhesive to the vinyl chloride adherend. Thus, the present invention has been completed.

Therefore, according to the present invention, there is provided an application film for a thermal transfer mark for transferring a thermal transfer mark of a marking member to an adherend made of a soft vinyl chloride resin containing di-2-ethylhexyl phthalate. A substrate in which the application film is a resin film having flexibility, a polymer obtained by graft-polymerizing a natural rubber or polyisoprene with an alkyl (meth) acrylate applied to one surface of the substrate, and styrene; −
Base polymer containing butadiene copolymer, a tackifier comprising an aliphatic or alicyclic petroleum resin, and di-phthalate
And a pressure-sensitive adhesive layer made of a rubber-based pressure-sensitive adhesive composition containing a softening agent made of 2-ethylhexyl, and affixed to the thermal transfer mark side of the marking member via the pressure-sensitive adhesive layer. An application film for a thermal transfer mark is provided.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION As described above, an application film for a thermal transfer mark according to the present invention comprises a substrate made of a resin film having flexibility and an adhesive layer applied to one surface of the substrate. Be composed. Although the substrate of the application film is not particularly limited, it has flexibility because it is necessary to favorably follow the embossed surface of the soft vinyl chloride resin leather as the adherend when heat-pressing the thermal transfer mark. It is preferable that the film be made of a resin film having high thermoplasticity. Examples of suitable resins for forming the base material include a soft vinyl chloride resin, a linear polyurethane resin, and a polyolefin resin. However, in consideration of flexibility and economy at the time of heating, a soft vinyl chloride resin is more preferable.

Although the thickness of the resin film constituting the substrate is not particularly limited, it is usually preferably about 30 to 80 μm. If the thickness of the resin film is greater than 80 μm, the ability to follow the embossed surface during heat compression will be reduced. Conversely, if the thickness is less than 30 μm, the workability when attaching the thermal transfer mark will be reduced. Will do.

In the practice of the present invention, it is particularly important to select a pressure-sensitive adhesive for forming a pressure-sensitive adhesive layer of an application film, and a natural or synthetic rubber-based pressure-sensitive adhesive is more preferable than an acrylic-based pressure-sensitive adhesive. . The pressure-sensitive adhesive of the present invention comprises the following three components: (1) a polymer obtained by graft-polymerizing an alkyl (meth) acrylate, preferably methyl methacrylate, or the like onto natural rubber or polyisoprene; and a styrene-butadiene copolymer. (2) a tackifier comprising an aliphatic or alicyclic petroleum resin, and (3) di-2 phthalate.
-A rubber-based pressure-sensitive adhesive composition containing a softener consisting of ethylhexyl as an essential component.

The rubber-based pressure-sensitive adhesive composition used in the present invention comprises:
If necessary, other additives such as an ultraviolet absorber, an antioxidant, a crosslinking agent, a filler, and the like may be optionally contained, as is generally performed in this technical field. The thickness of the adhesive layer of the application film is
It can vary widely depending on the desired adhesion and other factors, but is typically about 5-20 μm
Is preferably within the range. When the film thickness is less than 5 μm, there arises a disadvantage that the thermal transfer mark cannot be temporarily fixed with a satisfactory strength, and the film thickness is reduced to 20 μm.
Even if the adhesive strength is further increased by increasing the value of m, the temporary fixing of the thermal transfer mark is sufficient if a predetermined level of adhesive strength is sufficient, which is uneconomical and causes a reduction in workability.

[0013] The adhesive strength of the application film according to the present invention is not particularly limited as long as the adhesive strength is guided by the combination use of the essential components as described above, and can be widely changed within the range. However, if this adhesive force is too low, the temporary adhesive force will be low during the work of aligning the thermal transfer mark, resulting in inferior holdability.On the contrary, if it is too high, a great deal of force will be required for peeling after thermocompression bonding. It becomes necessary, and in some cases, transfer of the adhesive and adhesive residue may occur. The adhesive strength of the application film is, therefore, JIS Z
When measured according to the adhesive strength measurement method of “Testing method for pressure-sensitive adhesive tape / pressure-sensitive adhesive sheet” specified in [0237], the range is preferably about 50 g / 25 mm to 400 g / 25 mm.

The application films of the present invention can be made using conventional techniques. Such an application film, for example, a film-like substrate as described above is manufactured from a predetermined resin raw material using, for example, a calender molding method, and further, on one side of the substrate thus obtained, It can be produced by applying a pressure-sensitive adhesive composition comprising such components to a predetermined thickness using, for example, a roll coating method.

The marking member used in combination with the application film of the present invention is not particularly limited, and is preferably a release member, specifically a release paper or release sheet or film, and sequentially laminated thereon. And a heat-sensitive adhesive layer, an ink layer constituting a thermal transfer mark portion, and, if necessary, a clear layer. The ink layer can be formed, for example, by screen-printing a selected ink material, for example, a urethane-based ink material according to a desired thermal transfer mark pattern. The clear layer can be formed by screen-printing an appropriate clear paint, for example, a urethane clear paint, over the entire surface after the formation of the ink layer.

As described above, the adherend to which the thermal transfer mark is to be transferred via the application film of the present invention is made of di-2-ethylhexyl phthalate in order to sufficiently exhibit the effects of the present invention. An adherend made of a soft vinyl chloride resin leather contained as a plasticizer. In addition, this vinyl chloride resin leather may be embossed on its surface as is common in this technical field, and in the case of the present invention, the effect of the present invention is achieved in the presence of the embossed surface. It is possible to exert more. Various types of vinyl chloride resin leather are commercially available.

The application film for a thermal transfer mark according to the present invention can be applied to a marking member in various forms, an example of which is shown in a cross section in FIG. In the illustrated example, a marking member 10 having a predetermined shape is laminated on release paper 11, and an application film 20 is laminated on a surface of the marking member 10 on the side opposite to the release paper. The application film 20 includes a film-shaped substrate 21 and an adhesive layer 22 laminated on one surface thereof.

The marking member 10, as shown in cross section in FIG. 2, comprises a heat-sensitive adhesive layer 12, an ink layer 13 for forming a thermal transfer mark, and a clear layer 14 on the surface. For example, the ink layer 13 and the clear layer 14
Can be formed from a urethane-based material by screen printing.

[0019]

Next, the present invention will be described in detail with reference to some embodiments. It should be understood that the present invention is not limited to the following examples. Example 1 Preparation of Application Film AF1 Mixture of the following composition: 100 parts by weight of vinyl chloride resin 33 parts by weight of di-2-ethylhexyl phthalate (plasticizer) 2 parts by weight of epoxidized soybean oil (stabilizer) The film was formed by molding.
A 55 μm thick soft vinyl chloride film was obtained.

Next, an aliphatic petroleum resin (adhesive) was added to 100 parts by weight of a base polymer obtained by blending a rubber obtained by graft polymerization of polyisoprene with methyl methacrylate and a copolymer rubber composed of a styrene-butadiene copolymer. A rubber-based pressure-sensitive adhesive was prepared by adding 7 parts by weight (as an imparting agent), 34 parts by weight of di-2-ethylhexyl phthalate (as a softener) and 5 parts by weight of silicon dioxide. The obtained rubber-based pressure-sensitive adhesive was uniformly applied to a surface of the soft vinyl chloride film produced previously with a film thickness of 10 μm and dried. The intended application film AF1 was obtained. Example 2 Production of Application Film AF2 The procedure described in Example 1 was repeated. However, in this example, the aliphatic petroleum resin 19 was added to 100 parts by weight of a base polymer obtained by blending a rubber obtained by graft-polymerizing methyl methacrylate onto polyisoprene and a copolymer rubber composed of a styrene-butadiene copolymer. A rubber-based pressure-sensitive adhesive was prepared by adding 34 parts by weight of di-2-ethylhexyl phthalate and 7 parts by weight of silicon dioxide. The obtained rubber-based pressure-sensitive adhesive was uniformly applied to the surface of the soft vinyl chloride film produced in Example 1 with a thickness of 10 μm, and dried. The target application film AF2 was obtained. Comparative Example 1 Production of Application Film CAF1 The method described in Example 1 was repeated. However, in this example, for comparison, 100 parts by weight of a base polymer obtained by blending a rubber obtained by graft polymerization of polyisoprene with methyl methacrylate and a copolymer rubber made of a styrene-butadiene copolymer, A rubber-based adhesive was prepared by adding 7 parts by weight of a mixed aromatic / aromatic petroleum resin, 34 parts by weight of di-2-ethylhexyl phthalate, and 5 parts by weight of silicon dioxide. The obtained rubber-based pressure-sensitive adhesive was used in Example 1 above.
10μ thickness on the surface of the soft vinyl chloride film prepared in
m and uniformly dried. The intended application film CAF1 was obtained. Comparative Example 2 Production of Application Film CAF2 The method described in Example 1 was repeated. However, in this example, for comparison, 100 parts by weight of a base polymer obtained by blending a rubber obtained by graft polymerizing methyl methacrylate onto polyisoprene and a copolymer rubber made of a styrene-butadiene copolymer, A rubber-based pressure-sensitive adhesive was prepared by adding 4 parts by weight of a modified terpene resin (as a tackifier), 27 parts by weight of di-2-ethylhexyl phthalate, and 5 parts by weight of silicon dioxide. The obtained rubber-based pressure-sensitive adhesive was uniformly applied to the surface of the soft vinyl chloride film produced in Example 1 with a thickness of 10 μm, and dried.
The intended application film CAF2 was obtained. Comparative Example 3 Preparation of Application Film CAF3 In this example, for comparison, a commercially available application film # 331 from Sumitomo 3M was used, and in order to distinguish this film from other films, a film named CAF3 was used. Numbered. In this application film CAF3, the base film is a mixture of the following composition: 100 parts by weight of vinyl chloride resin 33 parts by weight of di-2-ethylhexyl phthalate (plasticizer) 2 parts by weight of epoxidized soybean oil (stabilizer) By molding, a soft vinyl chloride film having a thickness of 75 μm was formed. The pressure-sensitive adhesive layer is formed by uniformly applying a 10-μm-thick acrylic pressure-sensitive adhesive having butyl acrylate as a main component on the surface of the base film and drying the same. COMPARATIVE EXAMPLE 4 Preparation of Application Film CAF4 In this example, an application film # 430 commercially available from Sumitomo 3M Limited was used for comparison and a film named CAF4 was used to distinguish this film from other films. Numbered. In this application film CAF4, the base film is a mixture of the following composition: 100 parts by weight of vinyl chloride resin 29 parts by weight of di-2-ethylhexyl phthalate (plasticizer) 2 parts by weight of epoxidized soybean oil (stabilizer) By molding, a soft vinyl chloride film having a thickness of 75 μm was formed. The pressure-sensitive adhesive layer is formed by uniformly applying a 10-μm-thick acrylic pressure-sensitive adhesive having butyl acrylate as a main component on the surface of the base film and drying the same. COMPARATIVE EXAMPLE 5 Preparation of Application Film CAF5 In this example, an application film # 490 commercially available from Sumitomo 3M was used for comparison, and a film named CAF5 was used to distinguish this film from other films. Numbered. In this application film CAF5, the base film is a mixture of the following composition: 100 parts by weight of vinyl chloride resin 33 parts by weight of di-2-ethylhexyl phthalate (plasticizer) 2 parts by weight of epoxidized soybean oil (stabilizer) By molding, a soft vinyl chloride film having a thickness of 65 μm was formed. The pressure-sensitive adhesive layer is formed by uniformly applying an acrylic emulsion-based pressure-sensitive adhesive containing butyl acrylate and 2-ethylhexyl acrylate as main components on the surface of the base film in a thickness of 10 μm and drying. Evaluation Test 1 Evaluation of Application Film The application films prepared in Examples 1 and 2 and Comparative Examples 1 to 5 were peeled by 180 degrees, held to a soft vinyl chloride leather (adherend), and heated. The peeling workability after the pressure bonding was evaluated.
The evaluation method of each evaluation item is as follows. 180 degree peel adhesion: Japanese Industrial Standard JIS Z 023
Measured according to the adhesive strength measurement method of "Adhesive tape / adhesive sheet test method" specified in 7. SUS3 cleaned
A pressure-sensitive adhesive layer of a test piece (application film) is adhered to a test plate made of a 04 steel plate, and a roller is reciprocated once at a speed of about 300 mm per minute from above the test piece and pressed. After a lapse of a predetermined time, the play portion of the test piece is folded back at 180 degrees, and after peeling off about 25 mm, the test piece is peeled off.
The force required for peeling (g / 25 mm) is referred to as 180-degree peel adhesion. Film retention: as soft vinyl chloride leather, containing di-2-ethylhexyl phthalate as a plasticizer,
A commercially available soft vinyl chloride leather (thickness: about 1 mm) having an embossed surface is prepared. The pressure-sensitive adhesive layer of each test piece is adhered to the surface of this leather, and the roller is reciprocated once at a speed of about 300 mm per minute from above the test piece and pressed. After a lapse of about 30 minutes, the adhesion state (retention) of the test piece is visually evaluated in the following three stages.

Good: Adhered in the same good condition as immediately after pressing. Poor: very small part of the film tends to peel off, resulting in insufficient retention. Impossible: Natural peeling of the test piece was observed. Film peeling workability: As soft vinyl chloride leather
A commercially available soft vinyl chloride leather (about 1 mm thick) containing di-2-ethylhexyl phthalate as a plasticizer and having an embossed surface is prepared. The pressure-sensitive adhesive layer of each test piece was attached to the surface of the leather, and the test piece was heated and pressed at a pressing pressure of 2 kg / cm ² , a surface temperature of the silicone rubber sheet of 125 ° C., and a pressing time of 30 seconds. Next, each test piece is pulled by hand and peeled off, and the difficulty of the peeling operation at that time is evaluated on the following three levels.

Good: The test piece can be peeled off without resistance. Acceptable ... Slightly difficult to peel, but acceptable. Impossible: It is difficult to peel. Table 1 below summarizes the results of these evaluation tests for each application film.

Table 1 Application Film 180 ° Peeling Adhesive Strength Retaining Property Peeling Workability AF1 310 g / 25 mm Good Good AF2 390 g / 25 mm Good Good CAF1 294 g / 25 mm Good Good CAF2 869 g / 25 mm Good Not good CAF3 50 g / 25 mm Bad Good CAF4 15 g / 25mm Not possible Good CAF5 120g / 25mm Good Good evaluation test 2 Using the application films prepared in Examples 1 and 2 and Comparative Examples 1 to 5, applying a thermal transfer mark from a marking member to soft vinyl chloride leather (adherend). The quality of the thermocompression bonding was evaluated with respect to the change in gloss and the degree of contamination on the surface of the soft vinyl chloride leather.

First, a marking member with an application film was manufactured as follows. Sumitomo 3M Scotchcal ^™ GGS9000J film (adhesive sheet with release paper) is prepared, and Sumitomo 3M FL500 series urethane ink is screen-printed on an arbitrary pattern on the adhesive layer. An ink layer was formed. Further, a GA2 urethane clear paint manufactured by Sumitomo 3M Limited was screen-printed on the entire surface of the formed ink layer. Next, according to the design, GGS9000
The J film was cut out from the mold, and excess portions were removed. A marking member having a desired shape was obtained.

Subsequently, on the side of the clear layer of the obtained marking member, the above Examples 1 and 2 and Comparative Example 1
The application films prepared in Nos. To 5 were bonded together with the pressure-sensitive adhesive layer side down, and the release film of the application film and the GGS9000J film, which was larger than the design, was punched out. A marking member with an application film having a configuration as shown in the cross section in FIG. 1 was obtained.

In order to be subjected to the evaluation test, di-2-ethylhexyl phthalate was contained as a plasticizer as an adherend,
A soft vinyl chloride resin leather (thickness: about 1 mm) having an embossed surface was prepared. The thermal transfer mark of the marking member with the application film produced in the previous step was thermocompression bonded to the surface of the adherend. The apparatus used here was an air cylinder press in which a plane heater and a silicone rubber sheet having a thickness of about 1 mm were sequentially attached. The conditions for the heat compression bonding were as follows: press pressure: 2 kg / cm ² temperature of the silicone rubber sheet: 125 ° C. (surface) compression time: 30 seconds.

After the thermocompression bonding of the marking member to the adherend was completed, only the application film was peeled from the adherend. Next, a change in gloss and a degree of surface contamination of a portion where only the application film around the thermal transfer mark transferred onto the adherend was in contact with the adherend were observed as follows. Gross change on adherend surface: Visual judgment On the adherend surface, the presence or absence of gross change in the area where the application film was in contact was visually compared with the surrounding area where the application film was not in contact (control). did.

60-degree gloss value The same as the visual judgment, but the 60-degree gloss value was referred to as a criterion. The 60-degree gloss value is a value measured by a digital gloss meter VG-2P manufactured by Nippon Denshoku Industries Co., Ltd. Degree of contamination of adherend surface: In order to determine the degree of contamination of the adherend surface, a simulation test was performed using carbon black powder as a pseudo-pollutant. The area where the application film around the thermal transfer mark was in contact with the adherend and the surrounding area (control) were rubbed with carbon black powder, and then the carbon black powder remaining on the adherend surface was wiped with a white cotton cloth. I wiped it off. Determining the degree of contamination of the area where the application film was in contact with the surrounding area where the application film was not in contact (control)
It was visually determined in comparison with. A five-level evaluation was adopted as a criterion for determination, and point 1 was determined to be good (poorly contaminated) and point 5 was determined to be improper (contaminated).

Table 2 below summarizes the results of these evaluation tests for each application film. Table 2 Application Gloss change on adherend surface Contamination degree on adherend surface Film visual judgment 60 degree gloss value Initial judgment of visual judgment (control)-3.9 1 AF1 No change 4.3 1 AF2 No change 4.2 2 CAF1 slight change 4.4 3 CAF2 changed 5.2 1 CAF3 changed 4.9 5 CAF4 changed 5.2 2 CAF5 changed 5.34 As can be understood from the results described in Table 2 above. When the application films prepared in Examples 1 and 2 (Examples of the present invention) were used, the gloss change on the surface of the adherend was compared with the application films prepared in Comparative Examples 1 to 5 (Comparative Examples). In addition, a remarkably excellent effect can be obtained in terms of both the contamination degree.

[0030]

As will be understood from the above description, when the application film according to the present invention is used, it consists of a leather of a soft vinyl chloride resin containing di-2-ethylhexyl phthalate as a plasticizer and its leather. When the thermal transfer mark is heat-pressed on an adherend whose surface is embossed, it does not cause a noticeable change in gloss on the leather surface, and the thermal transfer mark is attached to an adherend such as a motorcycle seat. Later, it is possible to prevent the application film from being contaminated in the vicinity of the mark on the sheet, despite the fact that a large amount of frictional force due to the driver's weight or movement is applied as a result of riding the motorcycle for a while. it can.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example in which an application film according to the present invention is applied to a marking member.

FIG. 2 is a sectional view showing a configuration of a marking member used in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Marking member 11 ... Release paper 12 ... Heat sensitive adhesive layer 13 ... Ink layer 14 ... Clear layer 20 ... Application film 21 ... Base material 22 ... Adhesive layer

Claims (1)

[Claims] 1. A thermal transfer mark application film for transferring a thermal transfer mark of a marking member to an adherend made of a soft vinyl chloride resin containing di-2-ethylhexyl phthalate, wherein the application film comprises: A base made of a resin film having flexibility, a polymer obtained by graft-polymerizing natural rubber or polyisoprene with an alkyl (meth) acrylate applied to one surface of the base, and a styrene-butadiene copolymer; And a pressure-sensitive adhesive layer comprising a rubber-based pressure-sensitive adhesive composition comprising a tackifier comprising an aliphatic or alicyclic petroleum resin and a softening agent comprising di-2-ethylhexyl phthalate. Wherein the heat transfer mark is stuck to the thermal transfer mark side of the marking member via the adhesive layer. Application film for sha mark.