JPH0523975A - Sandpaper - Google Patents

Abstract

PURPOSE:To perform polishing operation with a sandpaper so easily and quickly and improve the working properties sharply and avoid getting any wasteful use of the sandpaper by forming a pressure sensitive adhesive layer in the backside of a base material attached with abradant grains tight through a binder, while sticking a sheet of mold release paper to this pressure sensitive adhesive layer. CONSTITUTION:A pressure sensitive adhesive layer 1 is formed on the backside of a base material 4 attached with abradant grains tight through a binder, while a sheet of mold release paper 2 is stuck to this pressure sensitive adhesive layer 1. When derusting of a metal surface, by way of example, is carried out by suchlike sandpaper A, this sandpaper A is tipped off as far as a degree of size as a woodlike holder H holding this paper. Then, the mold release paper 2 is separated, sticking it to the holder H in the exposed pressure sensitive adhesive layer 1, and the sandpaper A is supported on the holder H, then this holder H is gripped, having it reciprocated, thus derusting takes place.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sandpaper in which abrasive particles such as gold sand and glass powder are fixed to a base material with an adhesive. More specifically, it is easy to perform a manual sanding operation. In addition, the present invention relates to a technique that allows sandpaper to be used without waste.

[0002]

2. Description of the Related Art Conventionally, for example, in order to remove rust on a metal surface using sandpaper, the sandpaper is cut to an appropriate size, and as shown in FIG. It removes rust and so on.

[0003]

The sandpaper Aa is pressed against the object to be polished a by hand and reciprocally moved to carry out polishing, and the size of the sandpaper Aa is large enough to be applied to the hand. If it breaks into pieces, it may be difficult to reciprocate while pressing it against the object to be polished a, which may damage the hand. Therefore, as shown in FIG. 3, the sandpaper Aa should be made larger than it can be touched by the hand. It is wrapped around the hand and polished. However, as described above, when sandpaper Aa is wrapped around the hand to perform polishing, it is difficult to equalize the pressing force on the object to be polished a, and the pressing force of a specific finger such as the index finger tends to be strong, It is difficult to evenly polish the object to be abraded, and rust may remain. In such a case, the finish degree of the work of the next process such as painting and welding is affected. Then, on the side of the sandpaper Aa, the sandpaper Aa is ruptured to a size larger than that required to be applied to a finger, and the sandpaper Aa thus largely ruptured is like gold sand or glass powder in a part thereof. The current situation is that even if the abrasive particles come off, and they are still usable in other parts, they are discarded.

The present invention has been made in view of the above problems, and an object thereof is to make a simple improvement to perform a manual polishing work with sandpaper, and An object of the present invention is to provide a sandpaper in which the pressing force can be easily equalized, the finishing accuracy can be improved, and the tearing-off size does not have to be increased more than necessary, and waste can be avoided.

[0005]

In the sandpaper of the present invention, a pressure-sensitive adhesive layer 1 is formed on the back surface of a base material 4 having abrasive particles fixed thereto with an adhesive, and the pressure-sensitive adhesive layer 1 is separated. It is characterized in that the pattern paper 2 is attached. Further, the pressure-sensitive adhesive layer 1 is characterized in that the double-sided tape 3 having a pressure-sensitive adhesive on both sides and having a pressure-sensitive adhesive on both sides is attached to the back surface of the substrate 4.

[0006]

In this way, the pressure sensitive adhesive layer 1 is formed on the back surface of the base material 4 to which the abrasive particles are fixed by the adhesive, and the release paper 2 is attached to the pressure sensitive adhesive layer 1. ,
For example, to remove rust on the metal surface with the sandpaper A, the sandpaper A is torn to the size of a holder H such as a piece of wood that holds the sandpaper A, and the release paper 2 is peeled off to expose the exposed pressure sensitivity. The adhesive layer 1 is attached to the holder H to support the sandpaper A on the holder H, and the holder H is gripped by a hand to reciprocate to remove rust. If the surface of a is flat, a holder H having a flat surface may be used. The holder H is gripped and strongly pressed against the object to be polished a to reciprocate, and the sandpaper A is pressed substantially uniformly to easily and quickly. Rust is removed, and the size of the torn sandpaper A may be the size of the pressing surface of the holder H, so that the waste of the sandpaper A is avoided. Than it is.

Further, the pressure-sensitive adhesive layer 1 is composed of a double-sided tape 3 which is rupturable and has a pressure-sensitive adhesive on both sides and is attached to the back surface of the base material 4. A sandpaper provided with the pressure-sensitive adhesive layer 1 on the back surface of the base material 4 so as to obtain the required sandpaper A only by sticking the double-sided tape 3 having the pressure-sensitive adhesive material on the back surface of the base material 4. The cost of the sandpaper is kept low, and the sandpaper that is cheap and easy to use is provided.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. The sandpaper A is made by adhering abrasive particles such as gold sand and glass powder to the surface of a base material 4 such as paper, non-woven fabric and cloth which is flexible and can be easily torn by hand with an adhesive. The pressure-sensitive adhesive layer 1 is formed on the back surface of the substrate 4, and the release paper 2 is attached to the pressure-sensitive adhesive layer 1. In order to form the pressure-sensitive adhesive layer 1 on the back surface of the base material 4 in this manner, the pressure-sensitive adhesive layer 1 is formed on the base material layer of synthetic resin, paper or nonwoven fabric which has open cells and is rupturable. The pressure-sensitive adhesive layer 1 is impregnated and the double-sided tape 3 having the pressure-sensitive adhesive layer 1 on both sides is attached to the pressure-sensitive adhesive layer 1. However, the pressure-sensitive adhesive layer 1 may be applied to the back surface of the substrate 4. . The pressure-sensitive adhesive layer 1 may be formed on the entire surface of the base material 4 or partially. Furthermore, the base material layer of the double-sided tape 3 may be provided with cushioning properties.

As described above, the pressure-sensitive adhesive layer 1 is formed on the back surface of the base material 4 to which the abrasive particles are fixed by the adhesive, and the release paper 2 is attached to the pressure-sensitive adhesive layer 1. For sanding the surface of the metal such as rust on the sandpaper A, the sandpaper A is torn by hand to the size of a holder H such as a piece of wood that holds the sandpaper A, and the release paper 2 Is peeled off, and the exposed pressure-sensitive adhesive layer 1 is attached to a holder H to support the sandpaper A on the holder H, and the holder H is gripped by a hand to reciprocate to remove rust. .
In this case, if the surface of the object to be polished a is flat, a holder H having a flat surface may be used, and the holder H is gripped and strongly pressed against the object to be polished a to reciprocate to make the sandpaper A substantially even. It can be pressed to easily and quickly remove rust. The size of the sandpaper A to be torn off may be the size of the pressing surface of the holder H, and the waste of the sandpaper A is avoided.

The pressure-sensitive adhesive layer 1 is composed of a double-sided tape 3 which is rupturable and has pressure-sensitive adhesive on both sides, and is attached to the back surface of the base material 4. The required sandpaper A can be obtained by simply sticking the double-sided tape 3 having the pressure-sensitive adhesive on the back surface of the base material 4. The holder H is preferably a wood piece Ha that is easily available, but may be made of any other material. Then, an elastic body 5 having an appropriate hardness is attached to the wood piece Ha and the pressure-sensitive adhesive 6
The pressure sensitive adhesive layer 1 of the sandpaper A is attached to the elastic body 5 so that the elastic body 5 can absorb the irregularities on the surface of the wood piece Ha by the cushioning property of the elastic body 5 and can be used. Abrasiveness may be absorbed on the side of the polishing body a so that the polishing work can be favorably performed. The thickness and hardness of the elastic body 5 can be variously changed. Further, as shown in FIG. 2B, the holder H is made of, for example, a synthetic resin molded product, and an arc portion 7 on the upper surface of the holder H is formed so that it can be easily gripped by the palm, and sandpaper is provided on the arc portion 7 side. A may be attached and polishing work may be performed. In such a case, the arcuate portion 7 can be used to strongly polish the object to be polished a having a flat surface in a substantially line contact state. As shown in FIG. 2 (c), the holder H is in the shape of a square rod, and the sandpaper A, which is broken to an appropriate size, is attached to the tip of the holder H so that the hard-to-reach location can be ground. The shape of such a holder H may be a round bar shape as shown in FIG. 2 (d) so that the inner part of the inner surface of the object to be polished a of the pipe material is polished, or the holder H has a concave curved surface. 8 may be formed so that the outer surface of the object to be polished a of the pipe material can be polished. In this way, the shape and form of the holder H can be modified in various ways.

Although the broken sandpaper A is attached to the holder H in the embodiment, the sandpaper A is cut into a size corresponding to the size of the attachment surface of the holder H. There may be a large number of small pieces of sandpaper A of such an appropriate size, and a holder H.
The items may be packaged and packaged for sale.

[0012]

As described above, according to the present invention, a pressure sensitive adhesive layer is formed on the back surface of a base material having abrasive particles fixed thereto with an adhesive, and a release paper is attached to the pressure sensitive adhesive layer. From
For example, to remove rust on the metal surface with sandpaper, tear the sandpaper to the size of a holder such as a piece of wood to hold it, and peel off the release paper, and in the exposed pressure-sensitive adhesive layer You can attach it to the holder to support the sandpaper on the holder, and then grasp the holder with your hand to move it back and forth to remove rust.In such a case, if the surface of the object to be polished is flat, it will be flat. It is sufficient to use a holder on the surface, and you can hold the holder and reciprocate while strongly pressing against the object to be polished, press the sandpaper approximately evenly and quickly and easily remove rust. The sanding work can be done easily and quickly, the workability is greatly improved, and the size of the sandpaper to be torn off can be the size of the pressing surface of the holder. There is an advantage that it is possible to avoid the waste of command paper.

Further, the pressure-sensitive adhesive layer is constructed by adhering a double-sided tape, which is rupturable and has pressure-sensitive adhesives on both sides, to the back surface of the substrate, and therefore the pressure-sensitive adhesive is rupturable and has pressure-sensitive adhesives on both sides. Just by sticking the existing double-sided tape on the back surface of the base material, the sandpaper with the pressure-sensitive adhesive layer on the back surface of the base material is obtained by adhering the abrasive particles with the adhesive so as to obtain the required sandpaper. There is an advantage that the cost of the paper can be suppressed and the inexpensive and easy-to-use sandpaper can be provided.

[Brief description of drawings]

1A and 1B show an embodiment of the present invention, in which FIG. 1A is a sectional view, FIG. 1B is a bottom view, and FIG.

2 (a), (b), (c), and (d) are a sectional view, a perspective view, a perspective view, and a sectional view using another embodiment of the above holder.

FIG. 3 is a perspective view of a conventional example.

[Explanation of symbols]

1 Pressure-sensitive adhesive layer 2 Release paper 3 double-sided tape

Claims (2)

[Claims] 1. A sandpaper characterized in that a pressure-sensitive adhesive layer is formed on the back surface of a base material to which abrasive particles are fixed by an adhesive, and release paper is adhered to the pressure-sensitive adhesive layer. . 2. The sandblasting machine according to claim 1, wherein the pressure-sensitive adhesive layer is formed by adhering a double-sided tape which is rupturable and has pressure-sensitive adhesive on both sides to the back surface of the substrate. paper.