JP2583605Y2 - Cleaning sheet - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to a paper feeding unit provided in a printing apparatus such as a facsimile machine, a copying machine, a printer machine, etc. The present invention relates to a cleaning sheet used for cleaning a transport system for bills, tickets, and the like in vending machines, automatic ticket gates, and the like.

[0002]

2. Description of the Related Art The applicant of the present invention has a patent on a cleaning sheet in which an adhesive layer containing a natural rubber, a synthetic rubber component and the like is formed on the surface of a sheet material made of thin paper, synthetic paper, nonwoven fabric, film and the like. It was proposed in Japanese Patent Application Publication No. 70440. The cleaning sheet is, in theory, a contaminant such as paper dust or fine dust adhering to the surface of various paper feed rollers in a paper feed unit of a printing apparatus such as a facsimile, a copying machine, and a printer. Can be removed by the adhesive force of the adhesive layer, and the paper feed roller can be cleaned, so that there is an advantage that a troublesome disassembling operation or the like by maintenance personnel or the like becomes unnecessary.

[0003]

However, in the above-mentioned prior art, a cleaning sheet having an adhesive layer having a desired adhesive strength exposed on the surface is always used in various paper feeding sections in the same manner as ordinary copying paper. The adhesive layer is not properly discharged due to sticking to various paper feed rollers, etc. due to differences in environmental conditions such as machine usage conditions and temperature / humidity differences. In some cases, disassembly work by maintenance personnel etc. may be necessary after the fact,
Poor practicality.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention proposes to solve the above-mentioned problems of the prior art, and a cleaning sheet which passes through a sheet conveying system and cleans the conveying system. Forming an adhesive layer of an adhesive on both surfaces of the sheet material, forming a non-peelable fiber layer on the surface of the adhesive layer, and compressing the fibrous layer with a predetermined pressing force to form the adhesive layer. By burying in a layer, the surface of the adhesive layer is exposed to increase the adhesive strength of the surface, and when the predetermined pressing force is removed, the fiber layer is restored and the adhesive strength of the surface is eliminated. It is.

[0005]

Therefore, when the cleaning sheet according to the present invention is passed through the conveyance system of the paper feeding unit of various devices, the fiber layer located on the surface thereof rubs against various members arranged in the guide passage of the conveyance system. The dirt and the like are removed by the frictional force, and when the paper passes between rollers to which a pressing force is applied from above and below, such as a paper feed roller of a copying machine, the fiber layer is compressed by the pressing force to form an adhesive layer. And a part of the adhesive of the adhesive layer is exposed on the surface and comes into contact with the roller, and due to the adhesive force of the surface, contaminants such as paper dust and fine dust adhered to the roller surface are transferred to the cleaning sheet side, The surface of the roller can be cleaned. In addition,
After passing through the area where the pressing force is applied, the fiber layer is restored to some extent and its surface has no adhesive force.Therefore, it is stuck to various members arranged in the guide path of the transport system, making it impossible to discharge. There is no possibility that the adhesive will adhere to various members arranged in the guide path of the transport system or the like.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. First, in FIG. 1, an adhesive layer 2, 2 coated with, for example, an acrylic adhesive is formed on both sides of a sheet material 1 made of paper, synthetic paper, non-woven fabric, etc. and having a certain thickness and stiffness. A non-woven fabric is adhered to the surfaces of the adhesive layers 2 and 2 to form non-peelable fiber layers 3 and 3, which constitute a cleaning sheet S. The cleaning sheet S has a size corresponding to the purpose of use,
For example, if it is applied to a banknote transport system in a cash dispenser, it has the same size as a banknote, and its overall thickness is the same as the thickness of papers normally used in the transport system to be applied. Same or very slightly thicker. In this embodiment, in order to increase the adhesive force on the surface when a pressing force is applied from above and below, the adhesive layer is formed to a thickness of about 50 μm and has a roughness of about 0.1 μm. Non-woven fabric having a thickness of 5 mm and a thickness of about 50 μm (for example, Benlyse SF, a trade name of Asahi Kasei Corporation)
302) is a fiber layer .

FIG. 2 shows a state in which the cleaning sheet S shown in FIG. 1 is passing between the rubber or sponge-like paper feed rollers 4 arranged vertically. In this state, the cleaning sheet S passing between the sheet feeding rollers 4 and 4 is crushed by applying a pressing force from above and below, and the non-peelable fiber layers 3 and 3 are removed.
Is buried in the pressure-sensitive adhesive layers 2 and 2, and the pressure-sensitive adhesive comes into contact with the roller surface. Therefore, the paper dust and the like on the surface of the paper feed rollers 4 and 4 can be transferred to the cleaning sheet S side by the adhesive force. The cleaning sheet S crushed by the paper feed rollers 4 and 4
After passing between the paper feed rollers 4, 4, the original thickness is restored to some extent, and the adhesive force on the surface is lost.
Therefore, there is no danger of exerting an excessive adhesive action on various members disposed in a guide passage of the subsequent transport system and the like and causing a mechanical failure or the like.

[0008] The cleaning sheet S shown in FIG. 1, the acrylic pressure-sensitive adhesive as an adhesive layer, but those using a non-woven fabric as the fiber layer on both surfaces of the sheet material 1 to be formed, for example, an adhesive layer 2 SBR A fibrous layer 3 can be formed by applying a system adhesive and covering the surface with a nonwoven fabric.
Further, as the sheet material 1 using the nonwoven fabric, its both sides by coating A <br/> acrylic pressure-sensitive adhesive to form an adhesive layer 2 covered sprinkled without evenly fibers such as cotton on the surface, Then, the fiber layer 3 is removed by vacuuming and removing excess fibers.
Or form, or SB on both sides of the sheet material 1 such as paper
The adhesive layer 2 is formed by applying an R-based adhesive, the short fiber steel wool or the short fiber glass wool is sprinkled evenly on the surface, and then the excess fiber is vacuumed off to form the fiber layer 3. You can also. In any case, the thickness of the pressure-sensitive adhesive or the fiber layer forming the pressure-sensitive adhesive layer, the degree of pressure-sensitive adhesive strength, the material of the fiber layer, etc., when a pressing force is applied from above and below. The fiber layer is buried in the adhesive layer to increase the adhesive strength to a desired value. Thereafter, when the pressing force is removed, the thickness is restored to some extent and the adhesive strength is set to be eliminated. For example, the thickness of the fiber layer is about 30 μm to 1 mm, and the roughness of the mesh is 5 μm to 1 m in the case of a nonwoven fabric.
m, set to about 50 μm to 5 mm for mesh cloth. The thickness of the adhesive layer is set to about 30 μm to 100 μm, and the thickness of the sheet material is set to 20 μm to 20 μm.
Set to about 0μ.

[0009]

As evidenced by the above description, according to the invention], a cleaning sheet according to the present invention is to form a pressure-sensitive layer by adhesive on both sides of the sheet material, the surface of the adhesive layer, respectively, non peeled fiber layer is obtained by forming on, when passing between paper feed roller a pressing force is applied from the vertical direction as in the so-called nip roller, the fiber layer is buried in the adhesive layer by the pressing force, the adhesive strength of the surface is increased Accordingly, contaminants such as paper dust and fine dust adhering to the roller surface can be transferred to the cleaning sheet side, and the surface of the roller can be cleaned. Moreover, after passing through the place where the pressing force is applied, the fiber layer is restored to some extent and the adhesive force on the surface is lost, so that the transport system is always in the same manner as the conventional cleaning sheet having the adhesive layer exposed on the surface. It may be impossible to discharge by sticking to various members arranged in the machine, or it may be necessary to disassemble by maintenance personnel by causing a mechanical failure etc. by attaching an adhesive to those members. Therefore, a highly practical cleaning sheet can be provided.

[Brief description of the drawings]

FIG. 1 is an enlarged view showing one embodiment of a cleaning sheet according to the present invention.

FIG. 2 shows a pair of upper and lower cleaning sheets according to the present invention .
FIG. 4 is an explanatory diagram showing a state where the sheet is passed between sheet feeding rollers.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sheet material 2 Adhesive layer 3 Fiber layer S Cleaning sheet

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B41J 29/17 A47L 25/00 B41F 35/00 B65H 5/00 B65H 7/00 G03G 21/10

Claims (2)

(57) [Scope of request for utility model registration] 1. A cleaning sheet that passes through a conveying system of a sheet body and cleans the conveying system, wherein an adhesive layer made of an adhesive is formed on both surfaces of a sheet material, and a fiber is formed on the surface of the adhesive layer. the layers were unpeelable formed, the fiber layer is compressed tackified surface to expose the surface of the adhesive layer by buried in the adhesive layer at a predetermined pressing force, the predetermined pressing force is divided A cleaning sheet, wherein the fiber layer is restored by being removed, and the adhesive strength of the surface is lost. 2. The cleaning sheet according to claim 1, wherein the fiber layer is formed of a nonwoven fabric.