JPH09217044A - Freely detachable sheet and freely detachable film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the repetitive use without deteriorating the adhesive strength even when the installation and removal are repeated many times in relation to a freely detachable film and a freely detachable sheet used for pasting thereof to an automotive window glass and preventing the direct rays of the sun from irradiating the interior of the car. SOLUTION: This freely detachable sheet (film) 1 comprises a sticking layer 3 provided by applying a self sticking paste without deteriorating the sticking force even when repetitively used and without leaving an adhesive mark on a substrate when peeling thereof onto one surface of a thin-walled sheet unit (a film unit) 2 and a protecting member 4 pasted to the surface of the sticking layer 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a window glass of an automobile to prevent direct sunlight from irradiating the interior of the vehicle, or to a window glass of a house when the window glass is broken. The present invention relates to a removable sheet and a removable film used to prevent the scattering of debris.

[0002]

2. Description of the Related Art In recent years, a thin sheet (film plate) or a thin film is attached to a glass surface to prevent sunlight from shining into the room or to prevent scattering of fragments when the glass breaks. Things have become widespread. A sheet or film used for such an application is coated with a pressure-sensitive adhesive, and the adhesive force allows the sheet or film to adhere to a glass surface.

[0003]

However, when the sheet or film is attached to the glass surface with the adhesive as in the above-mentioned conventional technique, dust and dirt are also attached to the adhesive during repeated attachment and detachment. There was a problem in that they adhered to each other, the adhesive strength gradually decreased, and the sheet or film could not be adhered to the glass surface.

[0004] The present invention has been proposed in view of the above,
An object of the present invention is to provide a detachable sheet and a detachable film which can be repeatedly used without reducing the adhesive strength even if the detaching is repeated.

[0005]

In order to achieve the above object, the removable sheet according to the present invention has a thin-walled sheet body, on one side of which a suction force does not decrease even after repeated use, and a base material at the time of peeling. A self-adhesive glue that does not leave a trace of an adhesive is attached to form an adsorption layer, and a protective member is attached to the surface of the adsorption layer. Further, the detachable film of the present invention has a self-adhesive glue on one surface of a thin film body, which does not reduce the suction force even after repeated use and does not leave an adhesive trace on the base material at the time of peeling. An adsorbing layer is provided, and the adsorbing layer is provided inside to form a winding roll.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic perspective view of a removable sheet according to the present invention, and FIG. 2 is a view showing its sectional structure. The removable sheet 1 according to the present invention has a self-adhesive property in which the adhesive force does not decrease even after repeated use on one surface of a thin sheet body (film body) 2 and an adhesive trace does not remain on the base material at the time of peeling. Adhesive layer 3 is provided by adhering glue, and protective member 4 is attached to the surface of said adsorption layer 3. This detachable sheet 1 is attached to a window glass of an automobile to prevent direct sunlight from irradiating the inside of the vehicle, or attached to a window glass of a house to prevent scattering of fragments when the window glass is broken. It is used to prevent this, and when attaching this removable sheet 1 to a glass surface,
The protective member 4 is peeled off and used. The protection member 4 includes
A film or release paper is used.

The above-mentioned sheet body 2 is relatively hard and transparent,
It is translucent, opaque, or dyed, and is molded from a synthetic resin sheet material. When dyeing,
For example, a dye is added to an ethylene glycol-based solvent at 130 to 14
It may be melted at a high temperature of 0 ° C., and a synthetic resin sheet material may be dipped therein for dyeing.

The adsorption layer 3 is formed by applying a self-adhesive adhesive to the entire area of one side of the sheet body 2. The self-adsorbing glue is made of, for example, a two-liquid cross-linking type non-yellowing special urethane resin, and produces a self-adhesive coating without stickiness after cross-linking. The adsorption layer 3 formed of this self-adhesive glue does not become sticky, and even if it is repeatedly attached and detached, it is difficult for dust and dirt to adhere,
Therefore, even if it is repeatedly used, the suction force does not decrease, and it easily adheres to a smooth surface such as a glass surface with a sufficient suction force. Even if dust or dirt adheres to the adsorption layer 3 and the adsorption force decreases, washing it gently with a detergent will remove those stains easily, so if you dry it well, you can recover the initial adsorption force. And can be used repeatedly. Further, even if the detachable sheet 1 is peeled from the glass surface, no trace of the adhesive remains on the glass surface, and the glass surface is not soiled.

The above-mentioned self-adhesive glue may be applied to the sheet body 2 as it is, or a mixture of a dye (for example, a 2 type metal complex salt dye) and a pigment may be applied to the sheet body 2. Good. By mixing a dye or a pigment with the self-adhesive paste, the adsorption layer 3 can have light resistance and heat resistance.

A brush may be used for the application, or a printing method may be used. When the removable sheet 1 is manufactured by applying the printing method, as shown in FIG.
First, by passing the thin sheet body 2 between the rollers 51 and 52, the self-adhesive glue 31 from the hopper 55 is applied to one surface of the sheet body 2 to form the adsorption layer 3, and then the roller 5 is formed.
By passing it between 3, 54, the protective member 4 is wound up.
Is supplied onto the adsorption layer 3 to be attached. In this way,
When the removable sheet 1 is manufactured and actually used, it is formed into a simple rectangular shape or a shape suitable for a rearview mirror of an automobile, and cut into an appropriate shape according to the object of use.

FIG. 4 is a diagram showing another embodiment. In this embodiment, the above-mentioned self-adhesive glue is attached to one surface of a thin film body 12 to provide an adsorption layer 13, and the adsorption layer 13 is placed inside to form a take-up roll-shaped removable film 11. It is what constitutes. The thin film body 12 is transparent, semi-transparent, opaque or dyed, and is formed of a synthetic resin film material.

The removable film 11 is used for the same purpose as the removable sheet 1 described above, and the adsorption layer 13 is used.
Because it uses self-adhesive glue, it is a removable sheet 1
Similarly to the above, it does not become sticky, does not easily adhere to dust or dirt, does not reduce the adsorption power, can be washed off with a detergent, and can be repeatedly used.

[0013]

As described above, according to the removable sheet and the removable film of the present invention, since the adsorption layer is formed by the self-adhesive adhesive, sticking is not performed and sticking is repeated. Also, it is difficult for dust and dirt to adhere,
Therefore, even if it is repeatedly used, the suction force does not decrease, and it easily adheres to a smooth surface such as a glass surface with a sufficient suction force. Even if dust or dirt adheres to the adsorption layer and the adsorption power decreases, washing it gently with detergent will remove those stains easily, so if you dry it well,
It can be used repeatedly by recovering the initial adsorption force. Further, even if the detachable sheet or detachable film is peeled from the glass surface, no trace of the adhesive remains on the glass surface, and the glass surface is not soiled. It can be used repeatedly without reducing the adhesive strength even if it is repeatedly attached and detached.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a removable sheet according to the present invention.

FIG. 2 is a view showing a cross-sectional structure of a removable seat.

FIG. 3 is a diagram showing an example of a method for manufacturing a removable sheet.

FIG. 4 is a diagram showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Detachable sheet 2 Sheet body 3 Adsorption layer 4 Protective member 11 Detachable film 12 Film body 13 Adsorption layer

Claims (6)

[Claims] 1. A self-adsorbing adhesive is provided on one surface of a thin sheet body by adhering a self-adhesive glue which does not reduce the adsorptive power even after repeated use and does not leave an adhesive trace on the base material at the time of peeling, A removable sheet in which a protective member is attached to the surface of the adsorption layer. 2. The removable sheet according to claim 1, wherein the self-adhesive glue is made of a two-liquid cross-linking type resin material, and after cross-linking, a self-adhesive film without stickiness is formed. . 3. The removable sheet according to claim 1, wherein the adsorption layer is formed by adhering a mixture obtained by adding a dye or a pigment to the self-adhesive paste and mixing them. 4. The removable sheet according to claim 1, wherein the sheet body is transparent, translucent, opaque or dyed. 5. The removable sheet according to claim 1, wherein the self-adhesive glue is attached to the entire one surface of the sheet body. 6. An adsorption layer is provided on one surface of a thin film body by adhering a self-adhesive glue which does not reduce the adsorption force even when it is repeatedly used and does not leave an adhesive trace on the base material at the time of peeling,
A detachable film formed into a winding roll with the adsorption layer inside.