JP2011251413A - Transfer film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that when a transfer film is wrapped around a surface of a shaft cylinder having a comparatively small curvature radius such as a lipstick, a makeup brush, and a writing utensil, slight positional deviation occurs among each of layers, inviting a risk that a white concealing layer is exposed from a pattern layer; and here, when a terminal end of the transfer film covers over the surface of a starting end of the transfer film, even if the white concealing layer is exposed, the white concealing layer is covered by the covering portion and is concealed from view, but over a long period of use, when the covering portion is peeled off, the white concealing layer appears to be viewable, and the poor appearance caused by the peeling is further promoted.SOLUTION: The transfer film transferred on a surface of a curved member includes at least an adhesive layer, the white concealing layer, the pattern layer, and a peeling layer. The size of the white concealing layer is made smaller than that of the pattern layer.

Description

  The present invention relates to a transfer film transferred to the surface of a curved member, the transfer film comprising at least an adhesive layer, a white hiding layer, a picture layer, and a release layer.

As an example of a decorative transfer film, an anchor layer is arranged on the surface of the adhesive layer, a white hiding layer is arranged on the surface of the anchor layer, and a pattern layer is arranged on the surface of the white hiding layer. Film is known.
Moreover, the said white hiding layer is arrange | positioned in order to make the pattern layer arrange | positioned on the surface stand out. Therefore, in general, the size of the white hiding layer is equal to the size of the picture layer, or the size of the picture layer is set to about 0 than the size of the white hiding layer in consideration of dimensional variation. It is made small in the range of about 5 mm to 1.0 mm. That is, the pattern layer is located inside the white hiding layer.

Japanese Patent Laid-Open No. 10-52999.

However, since the size of the picture layer is smaller than the size of the white hiding layer, the white hiding layer is exposed from the picture layer when transferred, and specifically, the white hiding layer is linear. As a result, the appearance was remarkably deteriorated.
Even if the size of the white hiding layer is the same as the size of the pattern layer, the transfer film is wound around the surface of a shaft cylinder having a relatively small radius of curvature, such as lipstick, makeup brush, and writing instrument. In such a case, there is a risk that a slight misalignment occurs between the respective layers, and the white hiding layer is exposed from the pattern layer. Here, when the end of the transfer film is coated on the surface of the start end of the transfer film, even if the white masking layer is exposed, the white masking layer is masked by the covered portion and becomes invisible. (See FIG. 4). However, if the coated part peels off due to long-term use due to hand grease, the white hiding layer appears and becomes visible, which further promotes the poor appearance due to the peeling. I was allowed to. In particular, when the color of the pattern layer is dark, the exposed white hiding layer is conspicuous, which further deteriorates the appearance.

  Therefore, the present invention provides a transfer film transferred to the surface of a curved member, the transfer film comprising at least an adhesive layer, a white hiding layer, a picture layer, and a release layer, and the size of the white hiding layer is defined as a picture. The gist is that it is smaller than the size of the layer.

In the transfer film transferred to the surface of the curved member, the transfer film comprises at least an adhesive layer, a white hiding layer, a picture layer, and a release layer, and the size of the white hiding layer is determined by the size of the picture layer. Since the size is smaller than the size, the white hiding layer is not exposed from the picture layer, and thus a transfer film having a good appearance can be provided.
Further, even if the transfer film is wound around a cylindrical member and is peeled off, the white hiding layer is not exposed, so that appearance damage can be minimized.

The longitudinal cross-sectional view of the transfer film which shows an example of this invention FIG. 2 is a sectional view taken along line AA in FIG. 1. The longitudinal cross-sectional view which transcribe | transferred the transfer film to the cylindrical member. The principal part longitudinal cross-sectional view which shows the prior art.

An example of the present invention will be described with reference to FIG. Reference numeral 1 is a cylindrical shaft tube such as a ballpoint pen or a mechanical pencil around which the transfer film 2 is wound.
The transfer film will be described. On the surface of the adhesive layer 3, an anchor layer 4 that prevents intrusion of hand grease and moisture into the adhesive layer 3 is disposed. A white hiding layer 5 is arranged on the surface of the anchor layer 4, and a picture layer 6 larger than the white hiding layer 5 is arranged on the surface of the white hiding layer 5. More specifically, the end portion 5a perpendicular to the winding direction of the white hiding layer 5 is positioned about 0.3 mm inside the end portion 6a of the pattern layer 6, but is 0.1 mm to It may be in the range of 0.5 mm. Further, the surfaces of the end portions 5b and 6b which are wound and parallel to the direction are coincident with each other.
The pattern layer 6 is provided with patterns such as letters and patterns. And the peeling layer 7 is arrange | positioned on the surface of the pattern layer 6, and the film 8 removed after completion | finish of transcription | transfer is arrange | positioned on the surface of the peeling layer 7. FIG.
An oil-resistant barrier layer having excellent oil resistance may be interposed between the anchor layer 4 and the white hiding layer 5 in order to further prevent penetration of hand grease and the like into the adhesive layer 3.
The transfer film 2 composed of the adhesive layer 3, the anchor layer 4, the white hiding layer 5, the pattern layer 6 and the like is wound around the shaft tube 1 and transferred. Then, on the surface in the vicinity of the start end 2 a of the transfer film 2, specifically, in the region in the vicinity of the surface of the start end 7 a of the release layer 7, the end 2 b of the transfer film 2, specifically the end 3 a of the adhesive layer 3. The vicinity region of is covered.

Here, the basic composition of the adhesive layer 3 includes a polymer material, a tackifier, and a solid plasticizer. It is an adhesive layer that is not tacky at room temperature but sticks to heat and that lasts for a considerable time after cooling. Here, the polymer material is a component that gives adhesive strength, and includes polyvinyl acetate, copolyethylene-vinyl acetate, polyacrylate ester, polyvinyl chloride, natural rubber, synthetic rubber, copolyvinyl acetate-acrylate. , High molecular compounds such as polyester and polyurethane. The tackifier is a component for enhancing tackiness when activated by heating, and is a resin such as a rosin derivative, a terpene resin, a petroleum resin, a phenol resin, or a xylene resin.
In addition, the solid plasticizer is solid at normal temperature and dissolves when heated to the melting point or higher, swells and dissolves the polymer material and the tackifier, expresses adhesiveness, and once dissolved It is difficult to crystallize, and the adhesion holding time after heat activation can be increased. Specific examples include diphenyl phthalate, dihexyl phthalate, dicyclohexyl phthalate, dihydroabiethyl phthalate, dimethyl isophthalate, sucrose benzoate, ethylene glycol dibenzoate, trimethylolethane tribenzoate, tribenzoyl glyceride tetra, Benzoic acid pentaelite, sucrose octaacetate, tricyclohexyl citrate, N-cyclohexyl-P-toluenesulfonamide and the like.
The thickness of the adhesive layer 3 may be in the range of 0.5 μm to 300 μm, but preferably 0.5 μm to 10 μm. If it exceeds 10 μm, a step is likely to be confirmed after transfer.

The anchor layer 4 is made of acrylic resin, vinyl chloride resin, polyurethane resin, polyester resin, polypropylene resin, polyethylene resin, polystyrene resin, polycarbonate resin, vinylon resin, acetate resin, polyamide resin. A preferable material is appropriately selected according to the adhesion to each layer.
The thickness of the anchor layer 4 may be in the range of 0.5 μm to 50 μm, but is preferably 0.5 μm to 5 μm. If it exceeds 5 μm, a step is likely to be confirmed after transfer.

The white hiding layer 5 is composed of a white opaque pigment such as titanium dioxide and an additive such as a wax, a resin and a dispersant as a binder.
The thickness of the white hiding layer 5 may be in the range of 0.5 μm to 50 μm, but is preferably 0.5 μm to 5 μm. If it exceeds 5 μm, a step is likely to be confirmed after transfer.
In order to make the layer opaque to a thickness of a thin layer of 5 μm or less, it is generally necessary to increase the pigment concentration in the white hiding layer. Thereby, since binder resin becomes relatively small, it tends to be easily affected by sweat and solvent. It is also known that sweat, solvent, and the like easily penetrate from the cross section of the layer due to penetration from the surface layer.
Therefore, in this embodiment, since the white hiding layer is sandwiched between the anchor layer and the picture layer, a configuration in which sweat, a solvent, or the like hardly enters is adopted.

The pattern layer 6 is made by adding pigments of various colors to binders such as cellulose resin, polyester resin, vinyl chloride resin, polyurethane resin, polystyrene resin, and further, as necessary, plasticizer, stabilizer, wax, desiccant, and curing. After adding an agent, a thickener, etc., it can be formed by a known coating method or printing method using a colored paint or ink sufficiently kneaded with a solvent or a diluent.
The thickness of the pattern layer 6 may be in the range of 0.5 μm to 50 μm, but preferably 0.5 μm to 5 μm. If it exceeds 5 μm, a step is likely to be confirmed after transfer.

The release layer 7 is made of cellulose derivative, styrene resin, styrene copolymer resin, acrylic resin, methacrylic resin, rosin ester resin, polyvinyl acetate resin, polyvinyl chloride, polyvinyl chloride / vinyl acetate copolymer, polyester resin, polyurethane resin, One or more of butyral resin and polyamide resin are used.
The thickness of the release layer 7 may be in the range of 0.5 μm to 50 μm, but is preferably 0.5 μm to 2.0 μm. If it is 2.0 μm or more, burrs are likely to occur during printing, and productivity may be reduced.

As the film 8, a plastic film such as polyethylene terephthalate, polypropylene, polyethylene, nylon, cellophane, paper, or a composite film thereof, which is used as a base sheet of a normal transfer sheet, is used. A mold release treatment may be performed by coating the surface of the base sheet 2 with a melamine resin or the like.
The thickness of the film 8 may be in the range of 12 μm to 50 μm.

The oil-resistant barrier layer may be a curable resin such as an acrylic resin, a polyurethane resin, a urethane acrylate resin, a melamine resin, or an epoxy resin. As means for curing these curable resins, there are methods such as heating, ultraviolet irradiation, and electron beam irradiation.
Further, this oil-resistant barrier layer may be used as the release layer 7, and examples of the oil-resistant barrier layer (release layer 7) having the peelability include those made of an ultraviolet curable resin or an electron beam curable resin.

DESCRIPTION OF SYMBOLS 1 Shaft cylinder 2 Transfer film 3 Adhesive layer 4 Anchor layer 5 White concealment layer 6 Picture layer 7 Peeling layer 8 Film

Claims (2)

In the transfer film transferred to the surface of the curved member, the transfer film comprises at least an adhesive layer, a white hiding layer, a picture layer, and a release layer, and the size of the white hiding layer is smaller than the size of the picture layer. Transfer film. A transfer film in which the curved member is cylindrical, the transfer film is wound around the cylindrical member, and the upper end of the transfer film is covered with the end.

Images