JPH07132697A - Surface material for replacement of writing surface of writing plate - Google Patents

Abstract

PURPOSE:To improve an ease of installation and transport when replacing the surface material of a writing plate by using the writing surface, a ferrous foil layer of specific thickness value formed under the writing surface and a flexible base layer which can be adhered with an adhesive during installation and is formed under the ferrous foil layer as constituent parts. CONSTITUTION:A writing surface 40 allows the use of a chalk or a water-soluble marker, and is composed of a flexible writing surface coating for a writing plate, a white glossy coating or a film. In addition, a ferrous foil layer 42 consisting of iron with a thickness of 50 to 100mum is provided under the writing surface 40, and a base layer 43 which is excellent in terms of adhesion and flexibility using a commercial-grade water-soluble adhesive, is provided under the ferrous foil layer 42. Further, an intermediate buffer layer 41 for improving a writing touch is formed, if necessary, between the writing surface 40 and the ferrous foil layer 42. A surface material 30 for replacing the writing surface of the writing plate, can be used to create a new writing surface on the spot by, for example, preserving and transporting the rolled surface material, and cutting it to the qualitatively deteriorated writing surface and finally adhering the cut writing material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface material for writing surface replacement of a writing plate, which can be formed on a writing surface of a writing plate when the writing surface of the writing plate is deteriorated. here,
A writing board is used as a term that includes a blackboard written with chalk or the like and a white board written with an aqueous marker pen or the like.

[0002]

2. Description of the Related Art Ordinary blackboards written with chalk have been used in recent years as steel blackboards and enameled blackboards (JIS-S6045, JIS-S
The blackboard commonly referred to as 6043) is becoming mainstream. In addition, as a white board for writing with a water-based marker, a white board generally called enamel white (JIS-S6052) or whiteboard is becoming mainstream in recent years.

FIG. 1 shows a cross-sectional view of these conventional surface materials 10. FIG. 2 is a perspective view of the surface material 10. Surface material is usually a 0.5 mm enamel steel plate 2 (JIS-G3133)
Is it a writing surface 1 that is evenly enameled to
Apply baking paint to the plated steel plate 2 with the paint for writing boards,
After cutting the writing surface 1 into a predetermined size, the thickness
The one bonded to a 5.5 mm plywood 3 is used.

FIG. 3 is a cross-sectional view of a surface material 20 which is usually used as a school writing board. The surface material 20 has a large vertical dimension of 900 mm or 1200 mm and a horizontal dimension of approximately 2700 to 5400 mm.
Apply 24 x 30 mm reinforcement at 300 mm pitch. Then, an aluminum frame or a wooden frame is attached to the four sides of this surface material, which is widely used as a school board product.

Since the product life of this writing board is often determined by the deterioration of the writing surface, the product life can be extended by replacing the writing surface or only the writing surface and the steel plate. However, under the present circumstances, when the writing surface is replaced, the writing plate itself is not removed and the writing surface that constitutes the surface of the writing plate or the writing surface and the steel plate are not pasted, but the above-mentioned writing plate steel plate and plywood are pre-attached to the construction site. A method of bringing in the surface material that has been put together and sticking it on the writing surface of the deteriorated writing plate from above is used. Because at the construction site, a new writing surface or bonding only the writing surface and the steel plate is
This is because it is difficult in terms of work.

By the way, Japanese Patent Application Laid-Open No. 3-258599 (hereinafter referred to as "known art 1") discloses a pressure-sensitive adhesive sheet for a display plate which is adhered to a display substrate which is a metal plate or a synthetic wood block. A sheet is composed of a support and an adhesive layer, and the adhesive sheet for a display plate, the adhesive sheet for a display plate, which is characterized in that it can be releasably adhered to a display substrate, and a display plate using the same is disclosed. ing. In this method, a sheet-like surface material is adhered to the writing surface of the writing plate in advance, and is peeled off when the writing surface is contaminated and replaced with a new writing surface for use.

Further, in Japanese Utility Model Laid-Open No. 2-36489 (hereinafter referred to as known art 2), a blackboard paint film layer, a base material if necessary, a flexible magnet sheet (if necessary, in order from the writing surface).
There is disclosed a magnetic blackboard sheet having a structure in which a magnetic film is provided, which does not break even when it is wound and housed.

However, the pressure-sensitive adhesive sheet disclosed in the prior art 1 is based on the idea that a deteriorated writing surface is peeled off to form a new writing surface. However, it is not practical, and since it does not have magnetic performance, there is a drawback in that the function of fixing a sign using a magnet is impaired. Furthermore, since the surface material is attached by adhesion, it may be peeled off during use. On the other hand, in the known technique 2, there is no idea of reproduction when the writing surface is deteriorated, and the usage pattern which is a prerequisite to the above-described conventional technique is different, and it is used as a magnet sheet as a substitute for a magnet. It is thought to be used by sticking to the surface of steel furniture. In other words, it is a blackboard sheet that is used while being stuck or peeled off as a so-called blackboard substitute. This can be used as the surface material of the writing board, but in that case, it has a drawback that it cannot be used for a wooden writing board having no magnetic performance because the fixing to the writing board or the like is realized by a magnet sheet. Further, since the surface material is fixed by magnetic attraction, it may be peeled off during use. In addition, the "magnetic performance" referred to in the present specification refers to the performance that a magnet incorporated in various commercially available stationery attracts with a strength suitable for use.

[0009]

SUMMARY OF THE INVENTION An object of the present invention is to provide lightness, flexibility and improve adhesion to a deteriorated writing surface without losing the magnetic performance required as a writing board. ,
An object of the present invention is to provide a surface material for writing surface replacement of a writing board, which improves workability and transportability at the time of exchanging the writing board surface material and further reduces cost.

[0010]

Means for Solving the Problems The inventors of the present invention used a conventional steel plate as an iron foil, a plywood as a base material layer having flexibility and good adhesiveness, and a material having a flexible surface. It was found that the above problems can be solved by doing so, and the present invention has been completed.

According to the present invention, the writing surface, an iron foil layer having a thickness of 50 to 100 μm provided on the lower side of the writing surface, and an adhesive agent applied at the time of construction provided on the lower side of the iron foil layer. It is a surface material for writing surface replacement of a lightweight and sheet-like writing plate having magnetic performance, which is characterized by having a structure comprising a flexible base material layer of a material capable of

Further preferably, in the above-mentioned writing surface replacement surface material for a writing plate, a thickness of 10% is provided between the writing surface and the iron foil layer.
A surface material for writing surface replacement of a writing plate, characterized in that an intermediate buffer layer of 0 to 300 μm is provided.

[0013]

The reason for limiting each member and the function and effect will be described with reference to the sectional view of the surface material 30 of the present invention shown in FIG. For writing surface 40, chalk or water-soluble markers can be used, and flexible writing surface coating for writing boards (JIS-S6101, JIS-S
S6007, JIS-S60045), white gloss paint, or film.

The intermediate buffer layer 41 is provided as necessary in order to increase the adhesion between the writing surface 40 and the iron foil layer 42 and improve the writing touch. Thickness is 100 μ for improved adhesion and writing touch
It is sufficient if it is at least m, but if it is too thick, it reduces weight and flexibility, so 300 μm or less is preferable. Therefore, thickness 100
˜300 μm is preferred. Examples of the material include polyethylene film.

The iron foil layer 42 is made of thin iron, and if the thickness is less than 50 μm, the magnetic performance required for the characteristics of the writing board cannot be obtained, and if it exceeds 100 μm, the flexibility deteriorates. The thickness is preferably limited to 50 to 100 μm. Backside base material layer 43
Is composed of a substrate having excellent adhesiveness and flexibility using a commercially available water-soluble adhesive or the like. For example, flame-retardant paper can be used.

The surface material 30 for writing surface replacement of the writing board according to the present invention constructed as described above is wound, for example, in a roll shape, stored and transported, and cut and adhered to the deteriorated writing surface in a uniform size. By simply doing this, you can easily create a new writing surface on the spot, and it has great practical effects such as being compatible with any writing board.

[0017]

EXAMPLES Materials used as examples are as follows. The writing surface was composed of a vinyl chloride white film. A 200 μm-thick polyethylene film was used for the intermediate buffer layer. For the iron foil layer, an iron foil having a thickness of 80 μm was used. Flame-retardant paper was used for the base material layer.

When actually used and confirmed, it was possible to display with a commercially available water-soluble marker with the same performance as the conventional one, and it was also good to touch with a marker pen and familiarize with it. Moreover, the magnetic performance was confirmed with a magnet that is normally used, but there was no problem.

The following effects were observed for the purpose of improving the workability. That is, a commercially available water-soluble adhesive can be easily attached to a general plywood or a deteriorated writing surface of a writing board. Moreover, unlike the known technique 1, it firmly adheres, so that it is hard to rub when erasing characters. However, it did not come off. Also, the total thickness is 1 to 1.5 mm,
In the case of the surface material of 3600 x 900 mm, the weight is about
The weight of 20 kg was reduced to about 3 kg by the present invention. Furthermore, since it can be rolled, it became easier to transport.

[0020]

The surface material for writing surface replacement of the writing plate of the present invention is
Whatever the substrate is, the following excellent effects can be obtained while maintaining the conventional required performance. Since it can be rolled and is lightweight, it is easy to transport. Since it becomes easy to adhere to the writing surface of the deteriorated writing board, the construction can be performed by the same simple method as the cloth used for general interior decoration. With the effect of the above, labor and energy can be saved, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a conventional replacement surface material.

FIG. 2 is a perspective view of a conventional replacement surface material during transportation.

FIG. 3 is a schematic cross-sectional view of a conventional school board product.

FIG. 4 is a schematic cross-sectional view of the surface material of the present invention.

[Explanation of symbols]

 1: Writing surface 2: Steel plate 3: Plywood 4: Back rail 10: Conventional surface material 20: Conventional school surface material 30: Surface material of the present invention 40: Writing surface 41: Intermediate buffer layer 42: Iron Foil layer 43: Base material layer

Claims (2)

[Claims] 1. A writing surface and a thickness provided below the writing surface.
Magnetic performance characterized by having a structure composed of an iron foil layer of 50 to 100 μm and a flexible base material layer provided under the iron foil layer and made of a material that can be adhered by an adhesive at the time of construction Lightweight and sheet-shaped writing board surface material for writing surface replacement. 2. A thickness of 100 between the writing surface and the iron foil layer.
The surface material for writing surface replacement of a writing plate according to claim 1, wherein an intermediate buffer layer having a thickness of ˜300 μm is provided.