JP3295019B2 - Tiny wall cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultra-small wall cleaner for inserting and moving cards and sheets such as automatic ticket gates for public tickets, public telephones, cash dispensers, prepaid card processors, copiers and printers. It is about.

[0002]

2. Description of the Related Art In recent years, the use of cards such as cash cards, tickets, prepaid cards, and telephone cards has been increasing. The systems that use these cards are safe from cashless,
Since it includes various advantages such as not only identification but also light weight and improved efficiency, the needs thereof are likely to increase in the future. In addition, the machines for processing the various cards have become diversified, and the machine bodies have become more precise. However, not only dust, dirt and airborne substances adhere to the machines that process these cards, but also the dirt and oil film attached to the cards used by any person re-adhere, In the case of a system that performs printing by thermal transfer or the like, adhesion of a substance such as toner occurs.

[0003] These stains are often present on the very small wall where cards move, and if left unattended, they may cause malfunction of the machine. Heretofore, as a method of cleaning the minimal intermacular wall, for example, a method of wiping with a cotton swab wrapped with a cotton core rod or passing paper or the like several times has been used. However, these methods have a small contact area with the cleaning surface, so the cleaning effect is low,
It is difficult to reliably and efficiently wipe off dirt material. Further, there is a disadvantage that cotton fiber waste and paper fiber waste as short fibers remain on the cleaning surface and become new dust.

[0004] JP-A-6-223338 and JP-A-Hei-7
Although a nonwoven fabric bonded to a support layer has recently been developed as shown in Japanese Patent No. 249156, the nonwoven fabric layer is not structurally fixed between the fibers constituting the nonwoven fabric. Fibers on the surface are fibrillated, and the cleaning effect is not maintained. In addition, the fibers are liable to come out and become new dust.

[0005] As shown in Japanese Utility Model Laid-Open No. Hei 5-18835,
A cleaning sheet in which a pressure-sensitive adhesive layer is formed on one or both sides of the sheet material and the surface is covered with a fiber layer is used for removing and attaching dirt to both the fiber layer and the adhesive layer. There is a gap through which the dirt material passes. The fiber layer has the above-mentioned drawback that it is a non-woven fabric. If the fiber layer is a mesh sheet, the surface becomes uneven and the area in contact with the minimal interstitial wall is significantly reduced. In addition, since the fiber layer and the sheet itself are not firmly adhered to each other and are merely fixed by the adhesive layer, there is a possibility that the fiber layer is peeled off in the extremely small interstitial wall. Promoted by adhesion. In addition, the adhesive layer to which the contaminant adheres may conversely adhere to the minimal interstitial wall, and may become a new contaminant.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above circumstances, and has a durability, and is capable of easily removing fine dirt adhered to an extremely small wall of a card processing machine. It is intended to provide a cleaner that can be removed by a method.

[0007]

The present invention achieves the above object and has the following constitution. That is, the present invention comprises a synthetic fiber yarn containing at least 20 wt% or more of a synthetic fiber yarn having a single fiber fineness of 0.5 denier or less, and a cover factor represented by the following formula 1 is 14:
The gist of the invention is that 00 or more woven fabrics are bonded to at least one surface of the synthetic resin film. Cover factor = Nw × (Dw / ρw) ^1/2 + Nf × (Df / ρf) ^1/2 ... 1 where Nw; warp density of the woven fabric (number / inch) Nf; weft density of the woven fabric (number / inch) Dw; Total denier of warp (d) Df; Total denier of weft (d) ρw; Specific gravity of substance constituting warp (g / cm ³ ) ρf; Specific gravity of substance constituting weft (g / cm ³ ) The gist of the present invention is that the synthetic fiber yarn and the synthetic resin film constituting the woven fabric are composed of the same synthetic resin. Further, the present invention provides a polyester fiber yarn having a single yarn fineness of 0.5 denier or less at least 20 wt.
% Of a polyester fiber yarn containing at least 1% by weight of a polyester resin film bonded to at least one surface of a polyester resin film via a polyester resin. In addition, the present invention provides a polyamide fiber yarn having a single fiber fineness of 0.5 denier or less at least 20 wt%.
The essence of the present invention is that a woven fabric composed of the polyamide fiber yarns described above is bonded to at least one surface of a polyamide resin film via a polyamide resin. Further, the present invention provides a woven fabric comprising a synthetic fiber yarn containing at least 20 wt% or more of synthetic fiber yarn having a single fiber fineness of 0.5 denier or less and having a cover factor of 1400 or more represented by the following two formulas: The gist of the present invention is that it is bonded to at least one surface of the substrate. Cover factor = Nw × (Dw / ρw) ^1/2 + Nf × (Df / ρf) ^1/2 ... 2 where Nw: Warp density of fabric (number / inch) Nf; Weft density of fabric (number / inch) Dw; Total denier of warp (d) Df; Total denier of weft (d) ρw; Specific gravity of the substance constituting the warp (g / cm ³ ) ρf; Specific gravity of the substance constituting the weft (g / cm ³ ) The gist is that a cushion layer is provided between the synthetic resin film and the fabric.

[0008] With this configuration, it is possible to provide a very small wall cleaner which can remove minute dirt attached to the very small wall of a card processing machine by a simple method and can cope with cleaning of details. Can be. In addition, by forming the fabric, the film and the adhesive layer all from the same synthetic resin, it is possible to provide an environmentally friendly ultra-small wall cleaner which can be developed for recycling. Furthermore, the cushion layer is interposed between the woven fabric and the synthetic resin film, so that the fine dirt adhered to the extremely small wall of the card processing machine can be more reliably aligned with the passage surface where the cards move. Thus, it is possible to provide an extremely small wall cleaner which can cope with more detailed cleaning.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. FIG. 1 is a cross-sectional view of a minimal inter-wall cleaner according to a first embodiment of the present invention, and 1 is a synthetic resin film serving as a base material.
A woven fabric 3 composed of a synthetic fiber yarn containing at least 20 wt% of a synthetic fiber yarn having a single fiber fineness of 0.5 denier or less is bonded to one surface of the synthetic resin film 1 via an adhesive layer 2. I have. The synthetic resin film 1, the adhesive layer 2, and the fabric 3 have a thickness of, for example, 10: 1: 10.
, But is not limited to this thickness.

The synthetic resin film used in the present invention comprises a synthetic resin such as nylon, polyester, vinylon, polyaramid, polyolefin, vinyl chloride resin and fluorine resin, and is not particularly limited. Nylon and polyester are most suitable in consideration of the adhesiveness to the fabric made of fibers and the cost.

Further, when coating with an adhesive mainly composed of a synthetic resin in order to adhere to the woven fabric, the surface may be subjected to a treatment such as corona discharge treatment in order to improve the wettability of the adhesive.

The synthetic fiber yarn used in the present invention is a long fiber filament yarn obtained by spinning a synthetic resin such as nylon, polyester, vinylon, polyaramid, polyolefin and vinyl chloride. This synthetic fiber yarn may be obtained by ordinary spinning, but if the synthetic resin having different characteristics is subjected to composite spinning and splitting treatment, it is more suitable for the purpose depending on applications such as fineness and irregular cross section. Fiber yarns can be made.

FIG. 2 and FIG. 3 show the steps of composite-spinning synthetic fibers having different properties and performing splitting treatment.
4 is a portion composed of an alkali-soluble polymer, 5 is a portion composed of an alkali-soluble polymer, and the portion 4 composed of the alkali-soluble polymer and the portion 5 composed of the alkali-soluble polymer are alternately arranged and have a wedge-shaped cross section. By dissolving the composite fiber in alkali and splitting it, as shown in FIG. 3, the portion 5 composed of the poorly alkali-soluble polymer remains without dissolving, and at the same time, a large number of wedge-shaped fiber yarns in cross section are formed. It is obtained.

Further, by using a synthetic resin of the same type as that of the synthetic resin film as the material of the synthetic fiber yarn,
A cleaner more suitable for recyclability can be obtained. The synthetic fiber yarn contains at least 20 wt% or more of synthetic fiber yarn having a single yarn fineness of 0.5 denier or less. When the synthetic fiber yarn of 0.5 denier or less exceeds 0.5 denier, the cross-sectional area of the single yarn of the fiber increases, so that the contact area for dirt decreases.
In addition, the gap between the fibers is widened, so that it becomes difficult to capture dirt. As a result, it becomes impossible to reliably remove dirt substances. The single-fiber fineness of the synthetic fiber yarn contained at 20 wt% or more is preferably 0.2 denier or less.

The cross section of the synthetic fiber yarn containing 20 wt% or more is not particularly limited, but an irregular cross section is more preferable. This is because the acute angle portion of the fiber yarn cross section has a shape in which dirt is scraped off, which is effective for more reliably removing dirt. As the cross-sectional shape, specifically, a shape having an acute angle such as a wedge shape, a Y shape, or a T shape as described above is preferable. In order to obtain a synthetic fiber yarn having an irregular cross section having a small single-filament fineness, it is more suitable to use a method of subjecting a synthetic resin having different characteristics to composite spinning and splitting.

If the synthetic fiber yarn of 0.5 denier or less is less than 20 wt% of the synthetic fiber yarn constituting the woven fabric, the fiber yarn of 0.5 denier or less does not appear on the surface layer, The effect as a wall cleaner is significantly impaired.

The woven fabric used in the present invention must have a cover factor represented by the following three formulas of 1400 or more. When the cover factor is smaller than 1400, a gap is generated between the fiber yarns, so that not only the fiber yarns not fixed to the tissue may be fibrillated during use, but also the cleaning effect is significantly reduced. come. Cover factor = Nw × (Dw / ρw) ^1/2 + Nf × (Df / ρf) ^1/2 ... 3 where Nw; Warp density of fabric (number / inch) Nf; Weft density of fabric (number / inch) Dw; Total denier of warp (d) Df; Total denier of weft (d) ρw; Specific gravity of substance constituting warp (g / cm ³ ) ρf; Specific gravity of substance constituting weft (g / cm ³ )

The structure of the woven fabric composed of the synthetic fiber yarns is not particularly limited, and a desired structure can be selected according to physical properties required such as an external pressure applied by a cleaner and a cleaning effect. . In addition, refining
In order to reduce the coefficient of friction on the surface of the fabric and improve the sliding with the minimal inter-wall of the equipment, and to improve the calendering and adhesion for adjusting the thickness, the resin on the interface with the film, Etc. may be coated, and there is no particular limitation.

Further, in order to further enhance the effect of washing, a brush raising treatment or a pile finish may be applied. However, when raising the fibers or raising the pile on the fiber surface, the backing process or the fibers raised on the opposite side of the raised surface so that the fibers do not fall off the fabric surface so as not to attach new dirt to the ultra-small wall. A coating process is required to fix the fibers to the fabric.

According to the present invention, the synthetic resin film is a laminate formed by joining a woven fabric composed of synthetic fiber yarns including a synthetic fiber yarn having a single fiber fineness of 0.5 denier or less to at least one surface of the synthetic resin film. In the case where significant dirt is adhered to one side in the processing machine, bonding may be performed on only one side.However, in a normal card processing machine, dirt due to hand grit or oil film adhering to the card also occurs. Are preferably joined. In addition, it is more preferable that the cloth is joined to the side surface of a cash card having a thickness such as a cash card.

The method for joining the woven fabric composed of the synthetic resin film and the synthetic fiber yarn of the present invention is not particularly limited.
A commonly used processing method such as a thermocompression bonding method, a laminating method, a melt laminating method or a dry laminating method can be employed, and it is not always necessary to use an adhesive depending on the characteristics of the fabric and the film. The bonding strength between the woven fabric and the film varies depending on the application, but it is sufficient that the interface does not peel off when moving the minimal interstitial wall, preferably 0.1 kg / 3.
cm or more.

When an adhesive is used, an organic solvent such as alcohol is applied to the surface of the cleaner of the present invention for cleaning to remove carbons such as toner and organic substances contained therein more reliably. Considering the method and the fact that heat applied during thermal transfer is applied to the cleaner of the present invention, it is more preferable to employ a two-part adhesive that mixes a curing agent such as isocyanate into the synthetic resin body.

In the above, the minimal wall cleaner of the first embodiment of the present invention has been described. Next, the minimal wall cleaner of the second embodiment shown in FIG. 4 will be described. In FIG. 4, reference numeral 6 denotes a cushion layer made of a synthetic resin-based elastomer, foam, synthetic rubber, natural rubber, or the like.
A fabric 8 composed of a synthetic fiber yarn containing at least 20 wt% or more of a synthetic fiber yarn having a single-fiber fineness of 0.5 denier or less is bonded to one surface thereof via an adhesive layer 7.
The cushion layer 6, the adhesive layer 7, and the fabric 8
Is configured to have a ratio of, for example, 20: 1: 10, but is not limited to this thickness. When the cushion layer 6 is coated on the fabric 8 in a liquid state, the above-mentioned adhesive layer 7 may not be necessary.

Next, a third embodiment of the minimal wall cleaner shown in FIG. 5 will be described. In FIG. 5, reference numeral 9 denotes a synthetic resin film serving as a base material, and a cushion layer 11 made of a synthetic resin-based elastomer, foam, synthetic rubber, natural rubber, or the like is bonded to one surface of the synthetic resin film 9 via an adhesive layer 10. A woven fabric 1 composed of a synthetic fiber yarn containing at least 20 wt% or more of a synthetic fiber yarn having a single-fiber fineness of 0.5 denier or less via the adhesive layer 12 on the support thus formed.
3 are joined. The thickness of the synthetic resin film 9, the adhesive layer 10, the cushion layer 11, the adhesive layer 12, and the fabric 13 is configured to be, for example, 10: 1: 10: 1: 6. It is not limited to the thickness. When the cushion layer 11 is coated in a liquid state on the woven fabric 13 or the synthetic resin film 9, the above-mentioned adhesive layers 10 and 12 may not be necessary.

In the second and third examples of the present invention described above, the cushion layer is made of a synthetic resin-based elastomer, foam, synthetic rubber, natural rubber, or the like. It is preferable to use polyurethane, polyether, polyethylene, or the like, which is less than. If the compression residual strain is 25% or more, the recovery of the strained portion is slow, and there is a problem that it does not follow irregularities in the machine, which is not preferable.

The synthetic resin film according to the third embodiment of the present invention comprises a synthetic resin such as nylon, polyester, vinylon, polyaramid, polyolefin, vinyl chloride resin and fluorine resin as in the first embodiment. Although not particularly limited, nylon and polyester are most suitable in consideration of adhesiveness to the cushion layer and cost.

In the second and third examples of the present invention, the joining method of the woven fabric and the cushion layer, and furthermore, the synthetic resin film is not particularly limited, and may be a thermocompression bonding method, a laminating method, a melt laminating method or a dry laminating method. It is possible to employ an ordinary processing method such as the above, and it is not always necessary to use an adhesive depending on the characteristics of the woven fabric and the synthetic resin film. The bonding strength between the woven fabric and the synthetic resin film varies depending on the application, but it is sufficient that the interface does not peel off when moving through the minimum interstitial wall, and is preferably 0.1 kg / 3 cm or more.

The other conditions of the minimal wall cleaner of the second and third examples of the present invention described above are the same as those of the minimal wall cleaner of the first example, and a detailed description thereof will be omitted. The flexibility of the minimal wall cleaners of the first to third examples of the present invention was set based on the KES method measured at a sample width of 1 cm. In the KES method, the cleaner of the present invention has a flexural rigidity B value in the range of 1.0 to 100.0 gf / cm, and a flexural hysteresis 2HB value of 0.1 to 10.0.
It is preferably in the range of gf · cm / cm. When the bending stiffness B is lower than 1.0 gf / cm and the bending hysteresis 2HB value is higher than 10.0 gf · cm / cm, it is too flexible. It may bend and jam. Conversely, the bending stiffness B value is higher than 100.0 gf / cm, and the bending hysteresis is 0.1 gf · cm / cm.
If it is lower, the cleaner itself becomes too hard, and there is a possibility that the cleaner itself may not be able to follow the curved portion of the extremely small wall in the card processing machine and may become clogged.

The thickness of the cleaner is set according to the size of the gap between the minimal inter-walls depending on the type of the card, etc.
Must be in the range of 00 to 3000 μm, and 1
When the thickness is less than 00 μm, a gap is formed between the microscopic wall of the card processing machine and the fabric, and the cleaning effect, which is the object of the present invention, cannot be exhibited. When the thickness exceeds 3000 μm, the microscopic wall in the card processing machine may be clogged. In fact, a wall having a thickness exceeding 3000 μm can be easily cleaned by another existing technique.

Like the cleaner of the present invention, a composite of a synthetic resin film and a woven fabric or a composite of a cushion layer and a woven fabric or a composite of a synthetic resin film, a cushion layer and a woven fabric contains no harmful substances when recycled or incinerated from an environmental point of view. It is desirable that it does not occur. For recycling, it is desirable that the synthetic fiber yarn and the synthetic resin film or cushion layer are of the same type of synthetic resin, and if they are joined by an adhesive, the adhesive is also preferably of the same type of synthetic resin. . Considering this environmental problem, a polyester resin is the most preferable, and is composed of oxygen, carbon and hydrogen, and can be recycled without generating harmful substances even when incinerated. As the polyester-based resin, all of synthetic resin films, adhesives and synthetic fiber yarns are commercially available. In particular, fiber yarns having a density of 0.2 denier or less are made of sea-island using an alkali-poorly soluble polymer and an alkali-soluble polymer. By using a structure or split weave structure, it can be obtained relatively easily.

Polyamide resins are preferred next to polyester resins. The composition contains nitrogen in addition to oxygen, carbon and hydrogen, and although there is a possibility that a cyanide compound may be generated due to nitrogen components during incineration. , Typical nylon 6
Has only ε-caprolactam as a monomer component, and can be relatively easily repolymerized when recycled.

[0032]

Next, the present invention will be described with reference to examples. The obtained cleaner was evaluated by the following method. (1) Thickness: The thickness of each cleaner was measured according to JIS-L-1096. (2) Compression residual strain: The compression residual strain was measured according to JIS-K-6401. (3) Flexibility; "Standardization and analysis of texture evaluation (No. 2
Version) "(author: K. Kawabata, published by; Japan Textile Machinery Society, published on July 10, 1980), with a sample width of 1 cm and a maximum curvature K = ± 0.7 / cm. The bending stiffness B value is calculated by calculating the curvature from 0.2 to 0.5 / c.
m, and the bending hysteresis 2HB was determined when the curvature K was 0 / cm. (4) Evaluation of cleaning effect; telephone card 10,000
The used public telephone (MC-3PN type, manufactured by Nippon Telegraph and Telephone Corporation) was passed twice through the cleaner, and the dirt condition was evaluated by visual inspection. A five-point evaluation was carried out, with 5 being the most stained on the cleaner and 1 being the one not being stained. (5) Evaluation of Durability: A public telephone (MC-3PN type, manufactured by Nippon Telegraph and Telephone Corporation) in which the telephone card was used 10,000 times was passed through a cleaner 20 times, and the state of the surface was evaluated by blindness. .

Example 1 Polyethylene terephthalate (specific gravity: 1.38) as a poorly alkali-soluble polymer and polyethylene terephthalate copolyester obtained by copolymerizing 2.5 mol% of 5-sodium sulfoisophthalic acid as an alkali-soluble polymer were alternately used. Weight ratio of polymer 7
The composite spinning was performed at 2:28, and the obtained 8-divided split yarn 70 denier / 48 filament yarn was woven in a water jet loom into a plain fabric having a density of 160 yarns / inch and a weft density of 100 yarns / inch. The fabric is subjected to a weight reduction process of 18% in a dyeing process, and then calendered at 180 ° C., and has a warp density of 170 / inch, a weft density of 108 / inch, and a thickness of 9
A 0 μm woven fabric was obtained.

Next, polyethylene terephthalate was melt-extruded and biaxially stretched to obtain a 100 μm-thick synthetic resin film on both surfaces of a polyester resin (Model No. UE-320).
0, a polyester copolymer solid content concentration of 40%, solvent toluene, manufactured by Unitika Ltd.) was coated with a doctor knife so as to have a concentration of 10 g / m ² and then dried at 90 ° C. for 1 minute.

The above-mentioned woven fabric is arranged on both sides with the above synthetic resin film as a center, and is thermocompression-bonded at 150 ° by a calender roll, and the obtained woven laminating product is 54 m wide.
m and cut with a high frequency cutter to a length of 100 mm to obtain a cleaner of Example 1.

Example 2 Using a nylon 6 (specific gravity: 1.14) 70 denier / 175 filament yarn obtained by a melt spinning method, a density of 1 was obtained in a water jet room.
A plain woven fabric is woven at a density of 60 / inch and a weft density of 100 / inch.
A woven fabric having a density of 108 pieces / inch, a weft density of 108 pieces / inch and a thickness of 92 μm was obtained.

Next, nylon 6 is melt-extruded and biaxially stretched to obtain a 100 μm-thick synthetic resin film on both sides of a polyamide resin (product number T-1 manufactured by Daicel Chemical Industries, Ltd.).
71 was adjusted to a solid concentration of 40% with a solvent ethanol) with a doctor knife so as to have a solid content of 10 g / m ² and then dried at 90 ° C. for 1 minute.

The above-mentioned woven fabric is arranged on both sides with the above-mentioned synthetic resin film as the center, and is thermocompression-bonded at 150 ° C. with a calender roll.
m and a length of 100 mm were cut with a high-frequency cutter to obtain a cleaner of Example 2.

(Example 3) Polyethylene terephthalate (specific gravity: 1.38) as a poorly alkali-soluble polymer and polyethylene terephthalate copolyester obtained by copolymerizing 2.5 mol% of 5-sodium sulfoisophthalic acid as an alkali-soluble polymer were alternately used. Weight ratio of polymer 7
The composite spinning was performed at 2:28, and the obtained 8-divided split yarn 70 denier / 48 filament yarn was woven in a water jet loom into a plain fabric having a density of 160 yarns / inch and a weft density of 100 yarns / inch. The fabric is subjected to a weight reduction process of 18% in a dyeing process, and then calendered at 180 ° C., and has a warp density of 170 / inch, a weft density of 108 / inch, and a thickness of 9
A 0 μm woven fabric was obtained.

Polyester resin (Part No. UE-320) on both sides of a 200 μm polyethylene foam (Part No. L-400, 5% compression residual strain, manufactured by Sanwa Kako Co., Ltd.)
0, a polyester copolymer solid content concentration of 40%, solvent toluene, manufactured by Unitika Ltd.) was coated with a doctor knife so as to have a concentration of 10 g / m ² and then dried at 90 ° C. for 1 minute.

The above-mentioned woven fabric is arranged on both sides with the above-mentioned foam as the center, and thermocompression-bonded at 110 ° C. with a calender roll. The obtained woven laminating product is 54 mm wide and 10 cm long.
Example 3 Cut with a high-frequency cutter so as to be 0 mm.
I got a cleaner.

(Example 4) Polyethylene terephthalate (specific gravity: 1.38) as a poorly alkali-soluble polymer and polyethylene terephthalate copolyester obtained by copolymerizing 2.5 mol% of 5-sodium sulfoisophthalic acid as an alkali-soluble polymer were alternately used. Weight ratio of polymer 7
The composite spinning was performed at 2:28, and the obtained 8-divided split yarn 70 denier / 48 filament yarn was woven in a water jet loom into a plain fabric having a density of 160 yarns / inch and a weft density of 100 yarns / inch. The fabric is subjected to a weight reduction process of 18% in a dyeing process, and then calendered at 180 ° C., and has a warp density of 170 / inch, a weft density of 108 / inch, and a thickness of 9
A 0 μm woven fabric was obtained.

Next, polyethylene terephthalate was melt-extruded and biaxially stretched to obtain a 50 μm-thick synthetic resin film on one surface of a polyester resin (product number UE-320).
0, a polyester copolymer solid content concentration of 40%, solvent toluene, manufactured by Unitika Ltd.) was coated with a doctor knife so as to have a concentration of 10 g / m ² and then dried at 90 ° C. for 1 minute.

A 100 μm polyethylene foam (product number L-900, residual compression set: 10%, manufactured by Sanwa Kako Co., Ltd.) is bonded to the polyester resin coated surface of the synthetic resin film by a calender roll.
Thermocompression bonding was performed at ℃. Next, a polyester-based resin (product number UE-3200, polyester copolymer solid content concentration of 4) was provided on both surfaces of the composite obtained by laminating the synthetic resin film and the foam.
0%, solvent methyl ethyl ketone, manufactured by Unitika Ltd.)
Was coated with a doctor knife to a concentration of 10 g / m ² and dried at 90 ° C. for 1 minute.

The above-mentioned woven fabric is arranged on both sides of a composite obtained by laminating a foam on one surface of the above-mentioned synthetic resin film, and is thermocompression-bonded at 110 ° C. by a calender roll. The obtained woven laminating product is 54 mm wide. Then, it was cut with a high-frequency cutter so as to have a length of 100 mm to obtain a cleaner of Example 4.

Comparative Example 1 A cleaner of Comparative Example 1 was obtained by processing and processing in the same manner as in Example 1 except that a plain fabric having a warp density of 100 yarns / inch and a weft density of 96 yarns / inch was used. .

Comparative Example 2 Polyester splitting yarn 8
Thickness 1 composed of 0 denier / 48 filament yarn
Processed in the same manner as in Example 1, except that a spunbond having a specific gravity of 0.6 g / cm ³ was used instead of the woven fabric.
The treatment was performed to obtain a cleaner of Comparative Example 2.

Comparative Example 3 A woven fabric itself was used as Comparative Example 3 without attaching a synthetic resin film or the like to the woven fabric used in Example 1.

Comparative Example 4 A cleaner of Comparative Example 4 was obtained in the same manner as in Example 1 except that polyethylene terephthalate was melt-spun and woven using 70 denier / 96 filament yarn.

Comparative Example 5 A cleaner of Comparative Example 5 was obtained by processing and processing in the same manner as in Example 3 except that a plain fabric having a warp density of 100 yarns / inch and a weft density of 96 yarns / inch was used. .

Comparative Example 6 Polyester splitting yarn 8
Thickness 1 composed of 0 denier / 48 filament yarn
Processed in the same manner as in Example 3, except that a spunbond having a specific gravity of 0.6 g / cm ³ was used instead of the woven fabric.
The treatment was performed to obtain a cleaner of Comparative Example 6.

Comparative Example 7 A cleaner of Comparative Example 7 was obtained by processing and treating in the same manner as in Example 4, except that polyethylene terephthalate was melt-spun and woven using 70 denier / 96 filament yarn.

Comparative Example 8 Processing was performed in the same manner as in Example 4 except that 100 μm polyethylene foam (part number L-100, compression residual strain 26%, manufactured by Sanwa Kako Co., Ltd.) was used as the foam. The treatment was performed to obtain a cleaner of Comparative Example 8.

The above Examples 1 to 4 and Comparative Examples 1 to
Tables 1 and 2 show the evaluation results of No. 8.

[0055]

[Table 1]

[0056]

[Table 2]

From the results shown in Table 1 and Table 2, Examples 1 to
No. 4 can be easily inserted from the insertion opening of a public telephone, and it is suggested that it is a cleaner having a high cleaning effect without being clogged by an extremely small wall. Further, in Example 1, since all of the fabric, the synthetic resin film and the adhesive are made of polyester, they can be incinerated at the time of disposal, and can be recycled by removing dirt attached to the surface. it can. In Example 2, since the woven fabric, the synthetic resin film and the adhesive are all polyamides, it can be recycled by removing dirt attached to the surface. In addition, the third embodiment is slightly inferior in rigidity because there is no film at the center, but follows the minimum space in a public telephone and exhibits a cleaning effect. Further, the fourth embodiment has a rigid film and cushion. As a result, it was possible to follow the irregularities between the minimum lengths and to have an excellent cleaning effect.

In contrast to the above example, Comparative Example 1 had a low cover factor, so that a gap was formed between the fiber yarns, which was not only low in cleaning effect but also poor in durability.
Comparative Example 2 is poor in durability, and Comparative Example 3 is difficult to insert easily from the insertion port because it is too soft and has a small thickness because no synthetic resin film is present. Comparative Example 4 is 0.5 denier or more. , The washing effect was low because the contact area between the inter-wall and the fiber yarn was small. In Comparative Example 5, a gap was formed between the fiber yarns because the cover factor was low, and not only the cleaning effect was low but also the durability was poor. Comparative Example 6 was inferior in durability, while Comparative Example 7 was composed of single denier having a denier of 0.5 denier or more, so that the contact area between the interwall and the fiber yarn was small, so that the cleaning effect was low. Comparative Example 8 lacked cushioning properties and did not follow the in-machine unevenness, so that the cleaning effect was low.

[0059]

As described above, according to the present invention, it is possible to remove minute dirt adhered to the minimal wall of a card processing machine by a simple method, and it is possible to cope with cleaning of details. An ultra-small wall cleaner can be provided.
Further, by forming the woven fabric, the synthetic resin film and the adhesive layer all from the same synthetic resin, it is possible to provide an environmentally friendly ultra-small wall cleaner which can be developed for recycling. Furthermore, the cushion layer is interposed between the woven fabric and the synthetic resin film, so that the fine dirt adhered to the extremely small wall of the card processing machine can be more reliably aligned with the passage surface where the cards move. Thus, it is possible to provide an extremely small wall cleaner which can cope with more detailed cleaning.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a minimal inter-wall cleaner according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state before the fiber yarn used in the minimal inter-wall cleaner of the present invention is split.

FIG. 3 is a cross-sectional view showing a state after splitting a fiber yarn used for the minimal inter-wall cleaner of the present invention.

FIG. 4 is a cross-sectional view illustrating a minimal inter-wall cleaner according to a second embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a third embodiment of the minimal wall cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Synthetic resin film 2 Adhesive layer 3 Fabric 4 Portion consisting of alkali-soluble polymer 5 Portion consisting of alkali-poorly soluble polymer 6 Cushion layer 7 Adhesive layer 8 Fabric 9 Synthetic resin film 10 Adhesive layer 11 Cushion layer 12 Adhesive layer 13 Woven fabric

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Atsumi Ando 4-3-1 Kutarocho, Chuo-ku, Osaka-shi, Osaka Unitika Sales Co., Ltd. (56) References JP-A-8-227576 (JP, A) JP-A-60-145581 (JP, A) JP-A-6-223338 (JP, A) JP-A-7-249156 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G11B 23/50 B08B 1/00 D03D 15/00

Claims (6)

(57) [Claims] 1. A woven fabric comprising a synthetic fiber yarn containing at least 20 wt% or more of a synthetic fiber yarn having a single yarn fineness of 0.5 denier or less and having a cover factor of 1400 or more represented by the following formula: An extremely small wall cleaner which is joined to at least one surface of a resin film. Cover factor = Nw × (Dw / ρw) ^1/2 + Nf × (Df / ρf) ^1/2 ... 1 where Nw; warp density of the woven fabric (number / inch) Nf; weft density of the woven fabric (number / inch) Dw; Total denier of warp (d) Df; Total denier of weft (d) ρw; Specific gravity of substance constituting warp (g / cm ³ ) ρf; Specific gravity of substance constituting weft (g / cm ³ ) 2. The minimal wall cleaner according to claim 1, wherein the synthetic fiber yarn and the synthetic resin film constituting the woven fabric are made of the same synthetic resin. 3. A woven fabric composed of polyester fiber yarns containing at least 20% by weight or more of polyester fiber yarns having a single fiber fineness of 0.5 denier or less, wherein at least one surface of the polyester resin film has a polyester resin interposed therebetween. 3. The minimal inter-wall cleaner according to claim 2, wherein the ultra-small wall cleaner is joined. 4. A woven fabric comprising a polyamide fiber yarn containing at least 20% by weight or more of a polyamide fiber yarn having a single fiber fineness of 0.5 denier or less is formed on at least one surface of a polyamide resin film via a polyamide resin. The minimal inter-wall cleaner according to claim 2, which is joined. 5. A synthetic fiber yarn containing at least 20% by weight or more of a synthetic fiber yarn having a single fiber fineness of 0.5 denier or less and having a cover factor represented by the following two formulas of 1
An ultra-small wall cleaner comprising at least 400 fabrics bonded to at least one surface of a cushion layer. Cover factor = Nw × (Dw / ρw) ^1/2 + Nf × (Df / ρf) ^1/2 ... 2 where Nw; Warp density of fabric (number / inch) Nf; Weft density of fabric (number / inch) Dw; Total denier of warp (d) Df; Total denier of weft (d) ρw; Specific gravity of substance constituting warp (g / cm ³ ) ρf; Specific gravity of substance constituting weft (g / cm ³ ) 6. The minimal inter-wall cleaner according to claim 1, wherein a cushion layer is provided between the synthetic resin film and the woven fabric.