JP2014028032A - Pollutant wiping sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pollutant wiping sheet which can remove pollutants stuck to an object even at a detailed portion and a portion where water is hard to apply, and also facilitates treatment after removal.SOLUTION: A pollutant wiping sheet 10 includes an absorber layer 13 that includes an adsorbent 12, a hydrophilic fiber, and a thermally fusible adhesive, a first base material layer 14 provided on one face of the absorber layer 13, and a second base material layer 15 provided on the other face of the absorber layer 13. At least first base material layer 14 has water permeability.

Description

  The present invention relates to an environmental pollutant wiping sheet.

As a method for removing environmental pollutants adhering to an outer wall or a sash, a method of washing an object with water using a hose or the like is performed.
As a method for treating waste water containing environmental pollutants generated by washing, a method of adsorbing environmental pollutants on adsorbents such as zeolite has been widely used.
For example, in Patent Document 1, an environmental pollutant is adsorbed on an adsorbent in a liquid containing an environmental pollutant, or an environmental pollutant is trapped by passing a liquid containing an environmental pollutant through a filter medium (filter) containing an adsorbent. For example, a technique for removing environmental pollutants from a liquid containing environmental pollutants is disclosed.

However, when the object is washed with water, a large amount of waste water containing environmental pollutants is generated. Therefore, it takes time and labor to process the waste water with a filter. In particular, when cleaning is performed over a wide range or when a lot of environmental pollutants are attached, since a large amount of water is used for cleaning, the amount of waste water increases, and as a result, waste water treatment takes more time and effort. In addition, it is necessary to further process the filter after filtering the wastewater.
In addition, the method of washing an object with water may not sufficiently wash the details. Furthermore, it is difficult to remove environmental pollutants because the object cannot be washed in places where it is difficult to pour water.

Japanese Patent Laid-Open No. 2002-267995

  An object of the present invention is to provide an environmental pollutant wiping sheet that can remove environmental pollutants adhering to an object even in a place where it is difficult to apply water or details, and that can be easily processed after the removal.

  The environmental pollutant wiping sheet of the present invention includes an absorbent layer having an adsorbent, hydrophilic fibers, and a heat-fusible adhesive, a first base material layer provided on one surface of the absorbent layer, and an absorbent layer. And a second base material layer provided on the other surface of the layer, wherein at least the first base material layer has water permeability.

  The environmental pollutant wiping sheet of the present invention can remove environmental pollutants adhering to an object even in a place where it is difficult to apply details or water, and the processing after the removal is simple.

It is sectional drawing which shows an example of the sheet | seat for environmental pollutant wiping off.

<Environmental pollutant wiping sheet>
The environmental pollutant wiping sheet of the present invention includes an absorbent layer having an adsorbent, hydrophilic fibers, and a heat-fusible adhesive, a first base material layer provided on one surface of the absorbent layer, and an absorbent layer. And a second base material layer provided on the other surface of the layer.
Hereinafter, the environmental pollutant wiping sheet of the present invention will be specifically described with reference to the drawings.

FIG. 1 is a cross-sectional view showing a configuration of an environmental pollutant wiping sheet according to an embodiment of the present invention.
In this example, an environmental pollutant wiping sheet (hereinafter sometimes simply referred to as “wiping sheet”) 10 includes an absorbent layer 13 and a first base material layer 14 provided on one surface of the absorbent layer 13. And a laminated sheet material having a three-layer structure including the second base material layer 15 provided on the other surface of the absorbent layer 13.
The absorption layer 13 includes at least a sheet-like matrix 11 and an adsorbent 12 held in a dispersed state in the matrix 11.
The matrix 11 includes at least hydrophilic fibers and a heat-fusible adhesive.

[Absorbing layer]
(Adsorbent)
The adsorbent 12 used in the wiping sheet 10 has an action of adsorbing harmful environmental pollutants existing in the environment, such as an organic adsorbent and an inorganic adsorbent, and an inorganic adsorbent is suitable. used.
The inorganic adsorbent can be appropriately selected according to the pollutant to be adsorbed. For example, zeolite, activated clay, Oya stone, silica, alumina, molecular sieve, porous mineral, amorphous iron hydroxide, Prussian blue, etc. And one or more of these can be used.
The shape of the adsorbent 12 is powder, granule, pellet, or the like.

  Among these, the adsorbent 12 is preferably an inorganic adsorbent containing silicon, such as zeolite, activated clay, Otani stone, silica, alumina, molecular sieve, and porous mineral. If an inorganic adsorbent containing silicon is used as the adsorbent 12, as will be described in detail later, the wiping sheet 10 after use is subjected to a heat treatment such as incineration, and further cooled to obtain an inorganic adsorbent containing silicon. Solidifies in an amorphous state (glass state). Thereby, the environmental pollutant adsorbed on the inorganic adsorbent containing silicon is taken into the amorphous solidified product and is not released again into the environment.

  Among inorganic adsorbents containing silicon, it is known that there are about 200 types of zeolite, particularly natural zeolite and synthetic zeolite, due to the difference in crystal structure. Synthetic zeolite is an aluminosilicate having a three-dimensional cage structure and has a strong ion exchange property. Natural zeolite has a cylindrical structure and is characterized by its structure and pore size. When the environmental pollutant to be adsorbed is cesium ions, natural zeolite having a cylindrical structure is preferable as the adsorbent 12. The pore size of natural zeolite is 0.22-1 nm, preferably 0.55-0.8 nm.

The amount of the adsorbent 12 in the wiping sheet 10 is preferably adjusted in the range of 100 to 2000 g / m ² per unit area of the wiping sheet 10. With such an amount, environmental pollutants can be sufficiently adsorbed, and the wiping sheet 10 can be easily handled.

(matrix)
The matrix 11 holds the adsorbent 12.
The matrix 11 includes raw material fibers and a heat-fusible adhesive, and the raw material fibers include at least hydrophilic fibers.

Examples of the form of the matrix 11 include sheet-like forms in which voids are formed between fibers, such as a nonwoven fabric, a woven fabric, and a knitted fabric. Among these forms, a nonwoven fabric is preferable.
Hereinafter, the raw material fibers, the heat-fusible adhesive, and the like constituting the matrix 11 will be described.

Raw fiber:
The raw fiber contains at least hydrophilic fibers. “Hydrophilic fiber” is a fiber made of a material exhibiting hydrophilicity, and the fiber surface retains water between the fibers due to the property that the fiber surface is wetted by water, and the aggregate of the fibers exhibits water absorption.
By the way, when the environmental pollutant is radioactive cesium, the radioactive cesium dissolves in water and becomes cesium ions in the presence of water and is favorably adsorbed by the adsorbent 12. Therefore, as will be described in detail later, when wiping the object using the wiping sheet 10 of the present invention and scraping off the environmental pollutants attached to the object, the wiping sheet 10 is previously washed with water. It is preferable that the absorbent layer 13 of the wiping sheet 10 is absorbed in the form of a liquid containing an environmental pollutant by moistening or wetting an object with a small amount of water.
Since the matrix 11 includes hydrophilic fibers, it can sufficiently absorb and retain a liquid containing environmental pollutants.

As the hydrophilic fiber, a hydrophilic organic fiber generally used in the production of a nonwoven fabric or the like can be used.
Examples of hydrophilic organic fibers include non-wood plant fibers prepared from wood pulp for papermaking (such as chemical pulp and mechanical pulp prepared from softwood and / or hardwood wood), waste paper pulp, linter, hemp, cotton, kenaf and the like. And natural cellulose fibers such as rayon, synthetic fibers such as rayon, and SAF (superabsorbent fiber). Of these, natural cellulose fibers are preferred because they are industrially easy to use. The natural cellulose fiber is preferably supplied in the state of a dried pulp sheet and mechanically pulverized and defibrated in the dry state. One or more of these hydrophilic organic fibers can be used.
Note that SAF is a fiber made of a super-absorbent resin SAP (superabsorbent polymer), and is used to obtain a nonwoven fabric with high water absorption. Swelling polymer electrolyte materials such as sodium polyacrylate are known as ultrahigh water-absorbing resins.
In the present invention, SAP particles can be used in combination with the hydrophilic organic fibers.

  The hydrophilic fibers are preferably used in an amount of about 0.1 to 50 parts by mass with respect to 100 parts by mass of the adsorbent. The fiber length of the hydrophilic fiber can be appropriately set according to the production method of the nonwoven fabric or the like.

The raw material fibers may be made of hydrophilic fibers or may contain other fibers such as hydrophobic fibers.
As the hydrophobic fiber, a hydrophobic organic fiber generally used in the production of a nonwoven fabric or the like can be used. Specific examples include polyolefin fibers such as polyethylene and polypropylene, and polyester fibers. One or more of these hydrophobic organic fibers can be used.

When the raw fiber includes a hydrophobic fiber, the content is preferably 50% by mass or less in 100% by mass of the raw fiber (that is, the total of the hydrophilic fiber and the hydrophobic fiber).
Further, the fiber length of the hydrophobic fiber can be appropriately set according to the production method of the nonwoven fabric or the like.

Heat-sealable adhesive:
The matrix 11 includes, together with the raw material fibers, a heat-fusible adhesive that melts at least a part by heating and exhibits adhesiveness. When the web is formed using the heat-fusible adhesive together with the raw fiber, by heat-treating the web (thermal bonding method), at least a part of the heat-fusible adhesive is melted and exhibits an adhesive action, The matrix 11 in the form of a stable sheet in which raw material fibers are bonded can be manufactured.

Any heat-fusible adhesive may be used as long as at least a part thereof melts and acts as an adhesive. In addition to a fibrous heat-fusible adhesive (hereinafter referred to as heat-fusible fiber), Examples thereof include powdery heat-fusible adhesives, and one or more of these can be used.
The heat-fusible fiber includes a fiber that melts as a whole and acts as an adhesive, and a fiber that melts only a part of the fiber and acts as an adhesive. One or more of these can be used. Examples of the material of the heat-fusible fiber include one or more selected from the group consisting of polyethylene, polypropylene, ethylene / vinyl acetate copolymer, polyamide and polyester. The heat-fusible fiber that melts the entire fiber and acts as an adhesive is preferably formed by using one or a mixture of two or more of these, and only a part of the fiber is melted. The heat-fusible fiber that acts as an adhesive is preferably formed by using one or a mixture of two or more of these to form a melting part and a non-melting part.

Examples of the fiber that only partially melts and acts as an adhesive include a core-sheath composite fiber in which the outer periphery of a core made of polypropylene fiber (melting point 160 ° C.) is covered with a polyethylene layer (melting point 130 ° C.). Can be mentioned. When using a core-sheath composite fiber in which a coating layer made of a low-melting-point heat-fusible resin is provided on the outer periphery of the high-melting-point fiber as described above, a coating layer (sheath) Is melted and heated at a temperature at which the core does not melt (eg, 140 ° C.) to melt only the coating layer. When such a composite fiber is used, the core portion does not melt and remains as a stable fiber even when hot air treatment is performed. Therefore, unlike the case of using a heat-fusible fiber that melts the entire fiber, the voids of the matrix 11 are not filled with the molten heat-fusible fiber, and the liquid containing environmental pollutants is sufficiently retained in the voids. it can.
The fiber length of the heat-fusible fiber can be appropriately set depending on the production method of the nonwoven fabric or the like.

  Examples of the material of the powdery heat-fusible adhesive include the materials exemplified in the description of the heat-fusible fiber. When a powdery heat-fusible adhesive is used, a powder composed of particles having a particle size of about 50 to 500 μm can be preferably used.

Matrix manufacturing:
Hereinafter, the case where the matrix 11 is a nonwoven fabric is taken for an example, and an example of the manufacturing method is demonstrated.
As a general manufacturing process of a nonwoven fabric, there is a method having a web forming process for forming a web from raw fibers and a fiber bonding process for bonding raw fibers in the web. And as a form of a nonwoven fabric, there exist a dry-type nonwoven fabric, a wet nonwoven fabric, a spun bond nonwoven fabric etc. based on the difference in a web formation process, for example. Among these nonwoven fabrics, dry nonwoven fabrics are preferred as the organic porous material.

  Dry nonwoven fabrics include nonwoven fabrics that employ an airlaid method as a web forming step (airlaid nonwoven fabrics) and nonwoven fabrics that employ a carding method as a web forming step. Among these, airlaid nonwoven fabrics are preferred. The airlaid method is a method of forming a web by randomly laminating raw material fibers three-dimensionally using an air flow. Therefore, by adopting the airlaid method as the web forming step, it is possible to manufacture a nonwoven fabric having a low bulk density and a large gap between fibers.

Among air-laid nonwoven fabrics, nonwoven fabrics that employ hot air treatment are preferred as the fiber bonding step after the web forming step. The fiber bonding process by hot air treatment is a kind of thermal bond method also called an air-through method or a through-air method. In the case of adopting hot air treatment, the above-mentioned heat-fusible adhesive is used together with the raw material fibers when forming the web.
By adopting hot air treatment as the fiber bonding step, the raw fibers can be bonded while maintaining a low bulk density formed by the airlaid method and a large gap between the fibers. Such an air laid nonwoven fabric can sufficiently absorb and retain a liquid containing environmental pollutants.

When manufacturing an airlaid nonwoven fabric, the fiber length of the raw fiber is preferably 1 to 30 mm, and more preferably 2 to 10 mm. Moreover, when using a heat-fusible fiber as a heat-fusible adhesive, the fiber length of the heat-fusible fiber is preferably a fiber length within the above range shown for the raw fiber.
In this specification, the fiber length of the raw material fiber is an average value of lengths measured by observation with an electron microscope using 50 or more arbitrarily selected fibers as samples.

When an air laid nonwoven fabric is used as the matrix 11 and the adsorbent 12 is held by this, for example, in the web forming step by the air laid method, the raw material fibers (hydrophilic fibers and, if necessary, hydrophobic fibers) and heat fusion are used. The air-laid web may be formed by randomly laminating a mixture of the adhesive and the adsorbent 12 by an air flow, and a fiber bonding step by hot air treatment may be performed on the air-laid web. Alternatively, a mixture of raw fiber and adsorbent 12 is randomly laminated by an air flow to form an airlaid web, and a heat-fusible adhesive is applied on the airlaid web. What is necessary is just to perform the fiber bonding process by a hot air process.
According to such a method, the adsorbent 12 can be fixed with good dispersibility in the air-laid nonwoven fabric made of raw material fibers. In addition, since the surface of the adsorbent 12 is not excessively covered with the heat-fusible adhesive, the adsorbing performance of the adsorbent 12 is maintained well.

  In this case, the heat-fusible adhesive is preferably used in an amount of about 5 to 50 parts by mass with respect to 100 parts by mass of the adsorbent held in the air laid nonwoven fabric. Within such a range, the raw fiber and the adsorbent 12 in the air-laid nonwoven fabric can be sufficiently fixed, the sheet shape can be stably maintained, and the adsorbent 12 can be prevented from falling off. Further, the surface of the adsorbent 12 is not excessively covered with the heat-fusible adhesive, and the adsorbing performance of the adsorbent 12 is also maintained well.

(Other ingredients)
The absorption layer 13 may be composed only of the matrix 11 and the adsorbent 12, or may have components (other components) other than the matrix 11 and the adsorbent 12.
Examples of other components include various auxiliary agents such as surfactants used for the purpose of imparting wettability and preventing foaming.

[First base material layer]
The first base material layer 14 is a layer provided on one surface of the absorbent layer 13 and has water permeability. In addition, as will be described in detail later, when the object is wiped using the wiping sheet 10 and the environmental pollutants attached to the object are scraped off and removed, the first base material layer 14 is separated from the object. It will be a contact surface.

By the way, as described above, especially when the environmental pollutant is radioactive cesium, before wiping the object, the wiping sheet 10 is moistened with water, or the object is wetted with a small amount of water. It is preferable that the absorbent layer 13 of the wiping sheet 10 is absorbed in the form of a liquid containing contaminants.
Therefore, as the first base material layer 14 that becomes a surface in contact with the object, a water-insoluble and water-permeable material (that is, a liquid such as water can penetrate) is used. Of these, a thin sheet having excellent strength is particularly preferably used.

As such a sheet, for example, a nonwoven fabric such as an airlaid nonwoven fabric, a spunbond nonwoven fabric, a spunlace nonwoven fabric, or a needle punched nonwoven fabric, or a woven fabric is preferably used.
As the first base material layer 14, an air laid nonwoven fabric is preferable among the above-mentioned ones. If the 1st base material layer 14 is an air laid nonwoven fabric, since the terminal of the fiber which comprises this air laid nonwoven fabric protrudes from the surface of an air laid nonwoven fabric, the effect which scrapes off an environmental pollutant is high.

Examples of the fibers constituting the air laid nonwoven fabric include the hydrophilic fibers and the hydrophobic fibers described above in the description of the matrix 11. In particular, when fibers having a large fiber diameter are used, the effect of scraping off environmental pollutants is further improved. A preferable fiber diameter for obtaining the first base material layer 14 having excellent scraping property is preferably 10 dtex or more. A more preferable fiber diameter is 15 to 30 dtex.
As a manufacturing method of an airlaid nonwoven fabric, the method demonstrated previously in description of the matrix 11 is mentioned.

Further, as the first base material layer 14, paper or a film provided with an aperture can be used as long as it is water-insoluble and has water permeability.
The first base material layer 14 is bonded to the absorption layer 13 with a heat-fusible adhesive or the like.

[Second base material layer]
The second base material layer 15 is a layer provided on the other surface of the absorption layer 13.
The second base material layer 15 may or may not have water permeability.
The second base material layer 15 is bonded to the absorption layer 13 with a heat-fusible adhesive or the like.

When the 2nd base material layer 15 has water permeability, the target object can also be wiped also on the surface of the 2nd base material layer 15, and the environmental pollutant adhering to the target object can be wiped off and removed. That is, both surfaces of the wiping sheet 10 can be used for wiping.
When the 2nd base material layer 15 has water permeability, the sheet | seat illustrated previously in description of the 1st base material layer 14 as a base material layer which has water permeability is mentioned. Of these, an air-laid nonwoven fabric is preferred.
The second base material layer 15 may be made of the same type of fiber as the first base material layer 14, and the type and fiber diameter of the fiber may be changed from those of the first base material layer 14.

On the other hand, when the second base material layer 15 does not have water permeability, that is, when it is non-water-permeable, it is possible to prevent the liquid containing the environmental pollutant from oozing out.
As described above, particularly when the environmental pollutant is radioactive cesium, it is preferable that the absorbent layer 13 of the wiping sheet 10 is absorbed in the form of a liquid containing the environmental pollutant. There is a concern that the liquid containing the environmental pollutant sucked from the first base material layer 14 side oozes out from the opposite side, that is, the second base material layer 15 side.
However, if the second base material layer 15 is impermeable, it is possible to prevent the liquid containing the environmental pollutant from oozing out from the second base material layer 15 side. Holding the side by hand prevents liquids containing environmental pollutants from touching the hand.

  When the 2nd base material layer 15 does not have water permeability, resin films, such as PE (polyethylene) film, etc. are mentioned as a water-impermeable base material layer.

<Method for producing environmental pollutant wiping sheet>
Next, a method for manufacturing the wiping sheet 10 having the configuration shown in FIG. 1 will be specifically described by taking as an example a case where an air-laid nonwoven fabric is employed as the matrix 11 constituting the absorbent layer 13.
First, a sheet to be used as the first base material layer 14 is prepared, and the sheet is fed onto a mesh endless belt that is mounted on a conveyor and travels thereon, and a heat-fusible adhesive made of PE powder or the like thereon. Spray. Then, using an airlaid web forming machine, mesh the mixture of the mechanically deflated raw fiber (hydrophilic fiber and, if necessary, hydrophobic fiber), adsorbent 12 and heat-fusible adhesive. It is lowered to the endless belt side by the action of the intake air flow and dropped and deposited on the first base material layer 14. As a result, an airlaid web made of a mixture of the raw material fibers, the adsorbent 12 and the heat-fusible adhesive is formed on the first base material layer 14.
Then, after spraying a heat-fusible adhesive made of PE powder or the like on the air laid web, a sheet used as the second base material layer 15 is laminated, and the first surface is placed on one surface of the air laid web. The base material layer 14 obtains a laminated web having a three-layer structure in which the second base material layer 15 is provided on the other surface.

  Next, the laminated web is subjected to hot air treatment by an air-through method, whereby the mixture of raw fiber, adsorbent 12 and heat-fusible adhesive constituting the air-laid web is bonded in a bulky state to form the absorbent layer 13. And the 1st base material layer 14 is adhere | attached on the one surface, and the 2nd base material layer 15 is adhere | attached on the other surface, and the sheet | seat 10 for wiping of FIG. 1 is manufactured.

In addition, it is preferable that the end surface (peripheral end surface) of the wiping sheet 10 is sealed by heat treatment (heat sealing process) in that the adsorbent 12 can be further prevented from dropping and the handleability is excellent.
Further, when obtaining a laminated web having a three-layer structure, the first base material layer 14 and the second base material layer 15 may be interchanged.

<How to use a sheet for wiping off environmental pollutants>
The wiping sheet 10 is a wiping sheet for wiping off environmental pollutants (for example, radioactive materials such as radioactive cesium and radioactive strontium, heavy metals, etc.) adhering to an object such as an outer wall and a sash and removing them from the object. It is what is used.
As a method of removing environmental pollutants using the wiping sheet 10, the second base material layer 15 side of the wiping sheet 10 is held by hand, and environmental pollutants adhere to the surface of the first base material layer 14. Wipe the target object. Thereby, the environmental pollutant adhering to the object is scraped off by the first base material layer 14, moves to the absorption layer 13, is adsorbed on the adsorbent 12 in the absorption layer 13, and is removed from the object. .

  Before wiping the object with the wiping sheet 10, it is preferable to wet the wiping sheet 10 with water or to wet the object with a small amount of water. Accordingly, the environmental pollutant is sucked into the wiping sheet 10 in the form of a liquid containing the environmental pollutant and is adsorbed by the adsorbent. In particular, when the environmental pollutant is radioactive cesium, the radioactive cesium dissolves in water to form cesium ions and is adsorbed favorably on the adsorbent 12.

  Moreover, since the wiping sheet 10 includes the absorption layer 13 having the matrix 11 including at least hydrophilic fibers and a heat-fusible adhesive, the absorption layer 13 can appropriately absorb and hold the liquid. Therefore, even when the environmental pollutant is sucked in the form of a liquid containing the environmental pollutant, the absorption layer 13 can sufficiently absorb and hold the liquid containing the environmental pollutant. And the adsorbent 12 acts on the liquid absorbed and held in this way, and can effectively adsorb environmental pollutants.

  Moreover, since the 1st base material layer 14 is provided in the one surface of the absorption layer 13, and the 2nd base material layer 15 is provided in the other surface, the wiping sheet | seat 10 is provided in the wiping sheet | seat 10. Strength can be imparted and the adsorbent 12 after adsorbing environmental pollutants can be prevented from falling off the wiping sheet 10.

Further, if the second base material layer 15 also has water permeability, it is possible to wipe off the environmental pollutant by wiping the object to which the environmental pollutant has adhered also on the surface of the second base material layer 15. . That is, both surfaces of the wiping sheet 10 can be used.
On the other hand, if the second base material layer 15 does not have water permeability, it is possible to prevent the liquid containing the environmental pollutant from oozing out from the second base material layer 15 side. If the layer 15 side is held by hand, the liquid containing environmental pollutants can be prevented from touching the hand.

<Processing method for wiping off environmental pollutants>
The environmental pollutant wiping sheet 10 including the adsorbent 12 that adsorbs the environmental pollutant, that is, the used wiping sheet 10 is collected, subjected to a heat treatment such as incineration, and finally buried in the ground. To be disposed of.
In particular, if an inorganic adsorbent containing silicon is used as the adsorbent 12, it is melted by heat treatment. Then, the inorganic adsorbent containing silicon is solidified in an amorphous state (glass state) by cooling. Thereby, the environmental pollutant adsorbed on the inorganic adsorbent containing silicon is taken into the amorphous solidified product and is not released again into the environment. On the other hand, the matrix 11 (that is, the hydrophilic fiber and the heat-fusible adhesive, etc.), the first base material layer 14, and the second base material layer 15 are burned out by the heat treatment.

As described above, if the environmental pollutant wiping sheet of the present invention is used, the environmental pollutant can be removed from the object simply by wiping the object to which the environmental pollutant has adhered. Moreover, the used wiping sheet can be treated by incineration as it is. Therefore, there is no trouble of treating waste water containing environmental pollutants generated when the object is washed with water.
Moreover, if it is this invention, since the target object is wiped with the sheet | seat for wiping off, the detail of a target object can be wiped away sufficiently compared with the method of washing with water on a target object. Moreover, the environmental pollutant wiping sheet of the present invention can be used in places where it is difficult to spray water.
Therefore, the environmental pollutant wiping sheet of the present invention can remove environmental pollutants adhering to the object even in places where it is difficult to apply details or water, and the processing after the removal is simple.

DESCRIPTION OF SYMBOLS 10 Sheet for wiping off environmental pollutants 11 Matrix 12 Adsorbent 13 Absorbing layer 14 First base material layer 15 Second base material layer

Claims (1)

An absorbent layer having an adsorbent, a hydrophilic fiber, and a heat-fusible adhesive; a first base material layer provided on one surface of the absorbent layer; and a second provided on the other surface of the absorbent layer A base material layer,
An environmental pollutant wiping sheet, wherein at least the first base material layer has water permeability.

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