JPH0753963Y2 - Protective film for razor blade - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a razor blade protective film or sheet which covers the cutting edge portion of a razor to protect the blade edge and at the same time to prevent cuts on the skin.

[0002]

2. Description of the Related Art As shown in FIGS. 5 and 6, a cutting blade portion 2 of a razor is covered with a film 3 so as to protect the cutting edge and prevent damage to the skin. That is, when viewed from the side, the film 3 has a comb-teeth shape as shown in FIG. 5, so that the cutting edge portion 2 is exposed intermittently and moves the razor 1 in a direction perpendicular to the cutting edge portion 3. Then, the hair can be cut by the exposed cutting edge portion 2. However, when the cutting blade portion 2 is moved in its length direction, as shown in FIG.
Since the tip of the is covered with the film 3, the skin is not cut.

[0003]

As for the film 3 as described above, a laminated body in which a heat sealing layer is provided on a synthetic resin film such as polyester is attached to the cutting edge portion 2 or stainless foil is spot-welded to the cutting edge portion 2. However, the former had a problem that the protective function was lost by cutting with a blade during use of the razor, and the latter had a problem of low productivity and high cost due to spot welding.

Therefore, an object of the present invention is to provide a protective film which is tough and easy to bond to the blade portion of a razor.

[0005]

In order to solve the above problems, in the present invention, a surface protective layer is provided on one surface of an aluminum foil,
A structure in which a heat seal layer made of a thermoplastic resin is provided on the other surface is adopted.

[0006]

[Function] Since the surface protection layer is provided in addition to the aluminum foil, it is tough and is not cut by the razor blade, and it can be bonded to the razor blade by the heat seal layer, which saves labor and cost. be able to.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, the protective film 10 of the present invention has a surface protective layer 22 provided on one surface of an aluminum foil 20 serving as a base material via an adhesive 21 and an adhesive 2 on the other surface.
The reinforcing layer 22a is provided via 1a, and the heat seal layer 24 is provided via the adhesive 23.

For the heat seal layer 24, EAA, EEA and the like are preferably used in addition to the ionomer resin, but other thermoplastic resins can be appropriately selected and used.

The surface protective layer 22 and the reinforcing layer 22a are
The reinforcing layer 22a may be omitted, though it is made of a synthetic resin film such as polyester, polypropylene, polyethylene, or nylon.

Further, as shown in FIG. 2, the surface protective layer 22
Can be used as the coating layer. Similarly, heat seal layer 2
4 can also be formed by coating the aluminum foil 20.

The film 10 is, as shown in FIG.
Cut into a long tape 11 and install a large number of windows 12 at appropriate intervals.
Is used. The shape of the window 12 can be selected from various shapes such as an elliptical shape, a rectangular shape, or a rhombic shape as shown in FIG. A fold line 13 may be provided in the length direction.

The tape-shaped protective film 10 is bent along its lengthwise center line (so that the surface protective layer 22 is on the outer surface), and the razor blade edge is applied to the bent portion by the heat-sealing layer 24. When heat-sealed to the razor blade, a razor as shown in Fig. 5 is completed.

[0014]

[Effect] According to the present invention, as described above, since the razor blade protection film is formed by the laminate having the aluminum foil as the base material and the surface protection layer provided on the outer surface thereof, it may break during use. There is also no corrosion of the aluminum foil. Furthermore, the shape retention of the aluminum foil allows the protective film to maintain its shape when folded, so that it can be easily fitted to the razor blade, and a heat seal layer made of a thermoplastic resin is provided on the back surface of the aluminum foil to provide the razor blade. Since it can be heat-sealed, it has advantages such as excellent workability during manufacturing.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of a protective film of the present invention.

FIG. 2 is a sectional view showing another example of the above.

FIG. 3 is a plan view showing an example in which a window is provided on a protective film.

FIG. 4 is a plan view showing another example of the above.

FIG. 5 is a side view showing an example of a razor equipped with a protective film.

FIG. 6 is an enlarged transverse sectional view of the above.

[Explanation of symbols]

 1 Razor 2 Blade edge 3, 10 Protective film 11 Tape 12 Window 13 Fold line 20 Aluminum foil 22 Surface protective layer 22a Reinforcing layer 24 Heat seal layer

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Mizuno 29-11 Higashioosone-cho, Higashi-ku, Nagoya-shi, Aichi Nova Sumie Sone Building Nippon Ply Co., Ltd.Nagoya Sales Office

Claims (1)

[Scope of utility model registration request] 1. A protective film for a razor blade, wherein a surface protective layer is provided on one surface of an aluminum foil and a heat sealing layer made of a thermoplastic resin is provided on the other surface.