JP2012223513A - Nail sticker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nail sticker easily and neatly applied to a nail by anyone, and enjoyed without any special skill.SOLUTION: The nail sticker has a release material layer (12) having a flat surface, a film (22) having a flat surface, and an adhesive layer (14) for releasable adhesion between the release material layer and the film. The film has a substrate layer (26) essentially consisting of a vinyl chloride resin, a pattern layer (28) at least partially provided on the substrate layer, a protective layer (36) for covering the whole surface including an area formed with the pattern layer thereon and an area without the pattern layer, in this order, and further has an adhesive layer (24) for fixing the substrate layer or pattern layer and the protective layer.

Description

  The present invention relates to a nail seal attached to a nail.

  As part of fashion, nail art, which decorates hands and toenails, is especially popular among women. There are two ways to decorate the nails of hands and toes, such as applying a color or pattern directly to the nails using nail polish, etc., or applying artificial nails with decorations directly to the nails. There is a limit to the technology.

  For a topcoat that is provided on a surface of a transfer portion that has a transparent layer, a pattern layer, and an adhesive layer laminated on a support sheet, and the transparent layer is transferred to the nail through the adhesive layer The transfer sticker for nail art having a solubility (see Patent Document 1) is low in cost and easy to wear, but has a low water resistance because the pattern is printed using ink or the like. Further, since the top coat is further applied after being attached to the nail, drying is inconvenient.

  As a simple method, a nail sheet in which a sheet on which a pattern is printed is pasted on a nail or a sheet on which a pattern is printed on a transparent sheet is combined with a transparent sheet has been developed (see Patent Document 2). . In addition, nail art has been developed in which a pattern image is formed with toner formed by electrophotography on the other side of a sheet having adhesiveness on one side (see Patent Document 3).

JP 2004-337601 A (paragraph [0009]) JP 2009-11863 A JP 2010-250138 A (paragraph [0008])

  The invention described in Patent Document 2 has an advantage that it is not necessary to apply a top coat. However, since a dedicated cutter is used, there is a drawback that nail art cannot be performed when the cutter is not held.

  The invention described in Patent Document 3 has a high water resistance because the pattern image on the nail seal is formed by toner formed by an electrophotographic method, and has the merit of not applying a top coat. There is a feature of the invention, and the support (also referred to as “base material”) and other configurations are hardly disclosed.

  An object of the present invention is to solve the above-mentioned problems and to provide a nail seal that anyone can easily, easily and cleanly wear and can enjoy even without special technical skills.

  Therefore, the present inventor has conducted extensive research in view of the drawbacks found in the prior art, and as a result, the nail seal (1) has a release material layer (12) having a flat surface, and a film (22) having a flat surface. , Having a release material layer and an adhesive layer (14) for releasably sticking the film, wherein the film is at least partially on the base material layer (26) mainly composed of vinyl chloride resin. And a protective layer (36) covering the entire surface including the region where the pattern layer is formed and the region where the pattern layer is not formed, and further the base material layer or The present invention was completed based on the knowledge that the adhesive layer (24) for fixing the pattern layer and the protective layer was provided.

  According to the nail seal of the present invention, the release material layer and the film are detachably adhered, the base material layer constituting the film is mainly composed of vinyl chloride resin, and the printed pattern is protected by the protective layer. Therefore, the film with a pattern can be peeled off from the release material layer and can be easily and cleanly attached to the nail, and no special technical force is required for the application.

The nail seal which concerns on one Embodiment of this invention is shown, Fig.1 (a) is a top view, FIG.1 (b) is a side view. It is AA arrow sectional drawing of Fig.1 (a). It is a flowchart which shows the manufacturing method of the nail seal which concerns on one embodiment of this invention. FIGS. 4A and 4B are plan views showing the manufactured products in steps S5 and S6 of FIG. 3, respectively. It is a load-stroke diagram which shows the result of a tension test. It is explanatory drawing which shows the usage method of the nail seal of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in the figure, the same code | symbol is attached | subjected to the same structural member, and the overlapping description is abbreviate | omitted. In addition, although each layer such as the pattern layer is represented continuously, it may be discontinuous, and the dimensions do not represent the actual ratios of the dimensions, and the drawings are merely schematic diagrams. It is. Furthermore, in this specification, unless otherwise specified, “nail” includes both human and other animal foot and hand nails and artificial nails.

  FIG. 1 shows a nail seal 1 according to an embodiment of the present invention. FIG. 1 (a) is a plan view and FIG. 1 (b) is a side view. This nail seal 1 has the shape of a human finger on a release material layer 12 that is square in plan view (in FIG. 1A, from the back to the front of the paper, and from bottom to top in FIG. 1B). The film 22 on which a pattern (not shown) is printed is adhered to be peelable.

FIG. 2 is a cross-sectional view taken along line AA in FIG. In order to clearly show the laminated structure, it is highlighted and enlarged in the vertical direction. The nail seal 1 has an adhesive layer 14 between a release material layer 12 having a flat surface and a film 22 having a flat surface, and the adhesive layer 14 is an adhesive that adheres the release material layer 12 and the film 22 in a peelable manner. It consists of an agent.
The film 22 is formed by laminating a base layer 26, a picture layer 28 made of a picture (not shown) printed on the base layer 26, and a protective layer 36 for protecting the picture layer 28 in this order. 36 is fixed to the base material layer 26 or the picture layer 28 by the adhesive layer 24.

The thickness of the film 22 is usually preferably 70 to 200 μm, and more preferably 100 to 150 μm. If the thickness is less than 70 μm, the unevenness of the nail itself appears when it is attached to the nail, so that the effect as a cover is reduced, and if it is more than 200 μm, it is hard and difficult to attach.
The elongation percentage of the film 22 is usually preferably 100 to 200%, more preferably 140 to 180%. If the elongation is less than 100%, it is hard and tends to wrinkle when worn on the nail, and easily peels off from the nail during use. If the elongation is higher than 200%, the durability is too soft and the durability becomes weak.

  The release material layer 12 is adhered with the film 22 until the nail seal 1 is used. The film 22 is detachably adhered to the release material layer 12 so that it can be peeled off during use. The release material layer 12 is preferably translucent. When it is translucent, the user can see the nail through the release material layer 12 when the fingernail is applied to the back side of the nail seal 1 (the back side in FIG. 1A) and viewed from the front side. The film 22 having a size suitable for the user's nails can be selected in a state where the film 22 is adhered to the twelve. On the contrary, if it is opaque, it cannot be seen through the release material layer 12 from the front side even if a nail is applied to the back side. On the other hand, if the release material layer 12 is transparent, there is a drawback in that an accurate position may not be recognized by a cutting machine described later.

  The pressure-sensitive adhesive layer 14 is attached to the base material layer 26 and the release material layer 12 so as to be peelable. When the film 22 is peeled from the release material layer 12 in use, the pressure-sensitive adhesive layer 14 sticks to the base material layer 26 from the release material layer 12. It is formed of an arbitrary adhesive that can be peeled off and can be peelably attached to the nail. For example, an acrylic adhesive is preferable. The pressure-sensitive adhesive layer 14 needs to stably hold the film 22 on the nail, and is particularly preferably a pressure-sensitive adhesive formed of a medical pressure-sensitive adhesive, but is not limited thereto.

  Since the film 22 includes the base material layer 26, the picture layer 28, the protective layer 36, and the adhesive layer 24 that fixes the base material layer 26 or the picture layer 28 and the protective layer 36, each of these configurations will be described below. .

  First, a pattern is printed on one surface of the base material layer 26, and the other surface is stuck on the nail through the adhesive layer 14 at the time of use. Therefore, the material needs to be able to print the pattern easily and cleanly. Next, it is preferable to have a softness that can be applied without heating with a hot air blower or the like, but it is also important that it is not too soft to be applied without wrinkles. Furthermore, it is an important factor that it can be easily peeled off from the nail.

  As a result of extensive studies by the inventor from the above viewpoint, it has been found that the base material layer is preferably a material mainly composed of a vinyl chloride resin. For example, LAG protect (registered trademark) G-027 manufactured by Lintec Corporation is preferable. The thickness is preferably 35 to 100 μm, and more preferably 45 to 70 μm.

  The picture layer 28 consists of a picture (not shown in FIGS. 1 and 2) printed on the base material layer 26. In FIG. 2, the base material layer 26 is shown with the pattern layer 28 entirely covered thereon, but depending on the pattern, there may be only a part thereof. In the present embodiment, the base material layer 26 is partially melted by the ink component when a picture is printed by the printer. For this reason, it is conceivable that the thickness of the base material layer 26 where the pattern layer 28 is present is thinner than the part where the pattern layer 28 is not present. Even in this case, the surface of the pattern layer 28 may rise more than the surface of the base material layer 26.

  The protective layer 36 is a layer that covers the base layer 26 over the entire surface including the region where the pattern layer 28 is formed and the region of the base layer 26 where the pattern layer 28 is not formed. It is preferable that the material has a feeling. Furthermore, a material that is colorless, can be filed according to the shape of the nail, and can compensate for unevenness of the user's nail is desired. Like the base material layer 26, it is preferable that it has water resistance, oil resistance, durability, and low ultraviolet transmittance, for example, 12% or less. As a result, the printed pattern has weather resistance and color fading prevention. From the above viewpoint, similarly to the base material layer 26, a material mainly composed of a vinyl chloride resin is preferable. For example, LAG protect (registered trademark) G-027 manufactured by Lintec Corporation is more preferable.

  The adhesive layer 24 is made of an adhesive that fixes the protective layer 36 to the pattern layer 28 or the base material layer 26. The adhesive is not particularly limited as long as it does not stain the pattern of the pattern layer 28 as seen through the protective layer 36. For example, an acrylic adhesive can be used. In particular, an adhesive formed of a medical adhesive is preferable, but not limited thereto.

[Production method]
FIG. 3 shows a method for manufacturing a nail seal according to this embodiment.
In step S1, in the manufactured nail seal, a sheet constituting the substrate layer 26 (sometimes referred to as “substrate sheet”. For example, LAG protect (registered trademark) G-027, thickness 50 μm, width 1,270 mm) is used. A large number of predetermined patterns are regularly printed by a digital printing machine by on-demand printing (for example, VS-640 manufactured by Rolland DG).

  In step S2, the base material sheet on which the pattern is printed in S1 may be referred to as a sheet constituting the protective layer 36 in the manufactured nail seal (“protective sheet”. For example, LAG protect G-027 (trademark) thickness) A sheet (which may be referred to as “film sheet”) constituting the film 22 in the manufactured nail seal is manufactured.

  In step S3, the release material stuck at the time of delivery of the base material sheet is peeled off from the film sheet manufactured in S2, and the sheet constituting the release material layer 12 in the manufactured nail seal (sometimes referred to as a “release material sheet”). For example, a sheet (which may be referred to as a “nail seal sheet”) which is replaced with an S mat 100, a width of 1,000 mm, and translucent and cut to form a nail seal 10 (see FIG. 4B) is manufactured. To do. In step S3, the adhesive to which the release material was attached at the time of delivery of the base material sheet is in a state of being attached to the base material sheet when the release material is peeled off. Even if it is, a base material sheet and a peeling material sheet are stuck so that peeling is possible.

  In step S4, the nail seal sheet manufactured in step S3 is cut into the shape of a plurality of nails or fingers with a cutting machine (for example, GX-500 manufactured by Rolland DG) while leaving the lowermost release material sheet. Since the size of the nail or the thickness of the finger differs depending on the person and whether the same person is a thumb or a little finger, the size or thickness is appropriately set.

  In step S5, the nail seal sheet in which the film sheet is cut into a plurality of nails or finger shapes in S4 is cut into product sizes. For example, the size of one product is 35 mm in length and 122 mm in width, and as shown in FIG. 4A, eight films 22 having different sizes (widths) are arranged side by side.

  In step S6, the nail seal 10 according to the present embodiment is manufactured as shown in FIG. 4B by removing a portion (cass 10a) other than the film 22 cut to a predetermined size in step S5. .

  According to the nail seal of the present invention, the release material layer 12 and one surface of the film 22 are detachably adhered by the adhesive layer 14, and a pattern is printed on the base material layer 26 mainly composed of vinyl chloride resin. Therefore, the film 22 on which the pattern is printed can be peeled off from the release material layer 12 and easily and cleanly attached to the user's nails. Moreover, since the pattern is protected by the protective layer 36, it is not easily damaged by an external force, and the beauty can be maintained for a long time.

The nail seal of this embodiment is composed of the following materials.
<Configuration of nail seal>
Protective layer LAG protect (registered trademark) G-27 (Lintec Corporation)
Adhesive layer Acrylic adhesive (LAG Protect G-27)
Pattern layer Solvent ink ECO-MAX (Roland DG Corporation)
Base material layer LAG protect (registered trademark) G-27 (Lintec Corporation)
Adhesive layer Acrylic adhesive (LAG Protect G-27)
Release material layer ETS mat 100 (Lintec Corporation)

<Tensile test>
About the nail seal of the said structure, after peeling a peeling material layer (it is called "film" in a present Example), it uses an autograph AG-X measuring test machine (Shimadzu Corporation) and the tension exclusive jig for films, and performs a tensile test. went. The test conditions were a tensile speed of 500 mm / min, a test temperature of 23 ° C., and a load cell of 1 KN. The thickness was measured by peeling off the release material layer.
For the base material layer (referred to as “base material” in this example) constituting the nail seal, the tensile test and the thickness measurement were performed under the same method and conditions as described above.

  Table 1 shows the results of the tensile test. As can be seen from Table 1, the score distances of the film and the substrate were both 50.0 mm before the test and 125.0 mm and 122.0 mm, respectively, after the test. Therefore, the elongation is 150% and 144%, respectively. Although the elongation rate of the film was slightly higher than the elongation rate of the base material, both were within the preferred range.

  FIG. 5 is a load-stroke diagram in a tensile test. As can be seen from FIG. 5, the load (N) of the film and the base material both rapidly increases with the start of the stroke and reaches about 38N and 16N, but thereafter gradually increases with the stroke increase. Immediately before cutting, maximum loads (test force) 53N and 26N are shown, and when cutting, the load suddenly decreases and becomes zero. As described above, the maximum load (test force) is about twice as large as the thickness of the film, but the elongation is not so different between the two.

  FIG. 6 shows how to use the nail seal 10 of the present invention. As shown to (a) of FIG. 6, the film 22 which was on the nail | claw from the nail seal 10 is selected, and the film 22 is peeled off from a peeling material layer (not shown). Next, as shown in (b), the film 22 is pasted from the cuticle toward the toes. Third, as shown in (c), the portion protruding from the nail is scraped off by the nail file (F). Fourth, as shown in (d), the entire film 22 is pressed so as to fit the nail. The steps (a) to (d) are repeated, and the film 22 is completed by attaching the film 22 to all fingers of both hands as shown in (e).

  The nail seal of this example was able to peel off the film from the release material layer and easily and cleanly attach it to the nail even if it was a general person who did not have special technical ability.

  The nail seal of the present invention can be used as a nail art for decorating hands and toenails as part of fashion, especially as a nail decoration seal used by women.

DESCRIPTION OF SYMBOLS 1,10 Nail seal 12 Release material layer 14 Adhesive layer 22 Film 24 Adhesive layer 26 Base material layer 28 Picture layer 36 Protective layer

Claims (4)

It has a release material layer (12) having a flat surface, a film (22) having a flat surface, and an adhesive layer (14) that adheres the release material layer and the film so as to be peelable.
The film comprises a base layer (26) mainly composed of a vinyl chloride resin, a pattern layer (28) provided at least partially on the base layer, a region where the pattern layer is formed, and the A protective layer (36) covering the entire surface including the region where the pattern layer is not formed, and an adhesive layer (24) for fixing the base layer or the pattern layer to the protective layer. Nail seal characterized by.   The nail seal according to claim 1, wherein the film has a thickness of 70 μm to 200 μm and an elongation of 100% to 200%.   The nail seal according to claim 1 or 2, wherein the base material layer is LAG protect (registered trademark) G-27.   4. The nail seal according to claim 3, wherein the protective layer is LAG protect (registered trademark) G-27.