JPH07329225A - Deodorizing and water absorption sheet - Google Patents

Abstract

PURPOSE:To provide a deodorizing and water absorption sheet which can perform water absorption simultaneously with removal of a bad small. CONSTITUTION:The sheet is comprised by interposing a deodrizer 1 and water absorption agent 2 between two holding sheets 3 by mixing up with each other, forming a deodorizing and water absorption sheet by unifying the three layers, laminating pulverized pulp 5 on its both faces and performing lamination of nonwoven fabric 7 on one side face and the nonwoven fabric or vinyl or polyethylene sheet 8 on the other face.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet capable of absorbing moisture and removing odor. More specifically, the present invention relates to a sheet for absorbing water so as not to diffuse to other parts and remove odor in a living environment such as a toilet, a kitchen.

[0002]

2. Description of the Related Art Conventionally, in order to remove a bad odor generated in a living space or to absorb a small amount of spilled water, for example, a baby's disposable diaper so as not to spread it to others. It is known that a deodorant water absorbing sheet is used to treat these at the same time.

[0003]

However, conventional sheets for absorbing deodorant water have not always been satisfactory in terms of convenience, strength, or deodorizing and dehydrating effect thereof. Therefore, the present invention has been made in view of the above-mentioned problems, and absorbs water sufficiently, does not overflow to the outside, can be absorbed in a relatively narrow range, and at the same time strongly absorbs bad odor, It is an object of the present invention to provide a practically effective deodorizing and water-absorbing sheet that can be applied to a wide range of applications without drifting or remaining.

[0004]

In order to achieve the above object, the present invention embosses a layer having a three-layer structure in which a deodorant and a water absorbing agent are interposed between two holding sheets to form a three-layer structure. While being integrally formed, crushed pulp is laminated on the front and back surfaces thereof, and front and back layers are further laminated on the front and rear surfaces thereof. Alternatively, a plurality of pulps from zero are laminated on the front and back surfaces of the deodorizing and water-absorbing sheet, and front and back layers are further laminated on the front and back surfaces to form a sheet suitable for various deodorizing and water-absorbing purposes. A non-woven fabric was used for the surface layer, and a non-woven fabric or vinyl or polyethylene sheet was used for the back layer.

[0005]

According to the present invention, since the deodorant and the water absorbing agent are interposed in the deodorizing water absorbing sheet, the water permeating the sheet is absorbed by the water absorbing agent and is not diffused to the surroundings, and the moisture is removed by the deodorizing agent. It acts to remove the odor generated from the.
Further, it is possible to remove the odor in the atmosphere without necessarily involving water.

Further, in the deodorizing water absorbing sheet in which crushed pulp is laminated, the crushed pulp has a cotton shape and absorbs water and can be soft-touched in any shape. On the other hand, the deodorized water absorbent sheet laminated with pulp has the property that the moisture of the pulp does not permeate in the direction of the fiber and does not diffuse in other directions because the fibers of the pulp are arranged in a certain direction, so the absorbed moisture diffuses in a wide range. Not done.
Further, the pulp is formed into a soft sheet shape, which is inferior in softness to crushed pulp, but is excellent in strength.

Further, since a non-woven fabric having optimum water permeability and air permeability is used for the surface layer, it is possible to easily permeate moisture and odor into the deodorizing water absorbing sheet. The back layer is made of the same material as the front layer to allow moisture and odor to permeate from the front and back surfaces, and depending on the application, vinyl or polyethylene sheet may be used to prevent the permeation of water into the back surface.

The deodorant (CB clay) used in the present invention is cristobalite (Cr) which is a type of silicic acid anhydride.
ystbalite) as the main component, and a powder of about 200 mesh containing a small amount of quartz, etc., and is a very porous material that adsorbs gases such as ammonia and ethylene, and produces garbage, blood, manure. It has a property of quickly absorbing "odor" such as.

Particularly, the adsorption capacity of ammonia gas (g /
In g), the value is about 10 times that of activated carbon and zeolite.
Further, it has a deodorizing effect 10 to 30 times that of conventional deodorizing agents. Further, since this deodorant is a natural product, it is completely harmless if it directly comes into contact with livestock or food, or if it is mistakenly eaten by livestock.

On the other hand, the polymer is a granular material having a water absorption capacity (g / g) of about 1000 times and having a property of becoming a molten state by heating.

[0011]

Embodiments of the present invention will be specifically described below with reference to the drawings. In each of the embodiments, common points will be denoted by common reference numerals and corresponding description will be omitted.

[0012]

Example 1 FIG. 1 is a sectional view of a deodorizing water absorbent sheet showing Example 1 of the present invention. The deodorant water-absorbent sheet A of this example is
A layer of a deodorizing water absorbing sheet 4 is formed by interposing a mixture of a deodorizing agent 1 and a polymer 2 which is a water absorbing agent between two holding sheets 3, and crushed pulp 5 is further formed on both sides of the layer. The front and back layers 7 and 8 are laminated.

In forming the deodorizing water absorbing sheet 4, the deodorizing agent 1 and the polymer 2 which is a water absorbing agent are mixed and interposed between the two holding sheets 3, and then about 300 ° C. from the outer surface of the holding sheet 3. The two holding sheets 3 are fixed on the entire surface by applying a pressure of about 4 kg with the emboss heated to the above. That is, since the two holding sheets 3 are heated and embossed, the tissue of the two holding sheets is strongly bonded mainly at the embossed portion, and they can be integrated and fixed. As a result, the mixed deodorant and water absorbing agent are not unevenly distributed and are uniformly distributed and maintained in a stationary state. At the same time, the holding sheet 3 is heated and embossed around the selected periphery in the same manner as described above, and becomes a solid structure as a final structure.

The front and back holding sheets 3 constituting the layers of the deodorizing water absorbing sheet 4 have good water permeability and air permeability to moisture and odor, and heat resistance strength to withstand embossing at about 300 ° C. It is a material for which, for example, a mount made by processing virgin pulp may be used.

As the material for the surface layer 7 (front surface side), a non-woven fabric is used, and for the surface layer 8 (back surface side), a non-woven fabric, vinyl or a polyethylene sheet is used. When a polyethylene sheet is used, in order to prevent the outer surface of the surface layer 8 from slipping,
At least one surface is formed as a non-slip surface which is not coated, and the surface is laminated as an outer surface.

Since the surface layer 7 of at least one surface of the deodorizing water absorbing sheet having this structure is a non-woven fabric, moisture and odor can permeate from this surface. The permeated water is absorbed by the crushed pulp 5 and the water absorbing agent 2 and does not diffuse to other parts. Further, the odor is absorbed by the deodorant and deodorized.

The surface layer 8 on the other surface may be made of a nonwoven fabric together with the surface layer 7 by using a non-woven fabric depending on the application, so that the non-woven fabric can enhance the air permeability and the deodorizing effect. In addition, in the case where a large amount of water is permeated, a vinyl or polyethylene sheet is used to prevent the water from seeping out to the back surface. In the case of a polyethylene sheet, the outer surface is not slippery, so the position is unlikely to shift when used on a floor surface or the like.

According to this embodiment, the deodorant 1 is added to the sheet A.
Further, since the water absorbing agent 2 is interposed, it is possible to absorb the moisture and remove the malodor generated from the moisture. In addition, it is possible to remove the offensive odor in the surroundings without being accompanied by water. In addition, the crushed pulp gives a soft feel and a pleasant touch. Further, a sheet having a non-slip surface layer laminated on one surface of this sheet is less likely to be displaced during use by using this surface as a lower surface and using it on the floor or the like.

Further, the deodorant water-absorbent sheet of this embodiment is suitable for applications requiring a soft feeling, such as diapers, emergency sheets, surgical sheets, bed sheets for hospital beds, comforters, toilet mats, and sleeping beds. An excellent deodorizing and water-absorbing effect can be obtained by using the sheet for urine or the rug or hanging in the casket. Depending on the application, an anti-slip effect is added to prevent the position from shifting.

[0020]

[Embodiment 2] FIG. 2 is a cross-sectional view of a deodorant water absorbent sheet according to Embodiment 2 of the present invention. The deodorant water-absorbent sheet B of this example is
The difference is that a sheet-like pulp 9 is used instead of the crushed pulp used in the first embodiment.

The sheet-shaped pulp 9 used in this embodiment is a soft sheet-shaped pulp having fibers arranged in a certain direction and having good water absorption. When water is absorbed, moisture diffuses in the direction of the fibers, and in other directions. Has the property of being difficult to diffuse.
By utilizing this property, it is possible to suppress the diffusion of water within a small range by advantageously selecting the direction of the fibers during lamination.

In this embodiment, about four sheets of the sheet-like pulp 9 are laminated on the front and back surfaces of the deodorizing and water-absorbing layer, and the front and back layers are laminated on the front and back surfaces in the same manner as in the first embodiment. In this case, the sheet-like pulp 9 is inferior in softness to the deodorant water absorbing sheet A as compared with the case where the crushed pulp is used in Example 1, but is excellent in strength. The number of laminated sheet pulps 9 can be changed to 0 or a plurality of sheets (4 to 8 sheets) as necessary.

According to this embodiment, it is possible to absorb moisture and remove odor. For its use, the deodorant water-absorbent sheet B itself is not required to be so soft, but is suitable for the purpose of requiring strength. For example, it is suitable for deodorizing clothes sheets, rugs in closets, and geta boxes, in addition to other uses other than the sheets and the futon of Example 1, and the freshness of foods is good because of good ethylene gas absorption. It has an excellent deodorizing and water absorbing effect when used as a holding sheet.

[0024]

[Embodiment 3] FIG. 3 is a cross-sectional view of a deodorant water absorbent sheet according to Embodiment 3 of the present invention. The deodorizing water-absorbent sheet C of this example is
The difference is that the deodorizing agent 1 and the water absorbing agent 2 are mixed in the crushed pulp 5 instead of the deodorizing water absorbing layer 4 and the crushed pulp 5 in the first embodiment.

According to this embodiment, although the strength is low, the entire deodorizing and water absorbing sheet C is soft, and since the deodorizing agent 1 and the water absorbing agent 2 can be distributed in a large amount as compared with the first embodiment, the deodorizing and absorbing water is absorbed. In addition to the large ability, the same operational effects as those of the first embodiment are obtained.

[0026]

[Embodiment 4] FIG. 4 is a cross-sectional view of a deodorant water absorbent sheet according to Embodiment 4 of the present invention. The deodorizing water-absorbent sheet D of this example is
In place of the deodorizing and water absorbing layer 4 in Example 2, a plurality of pulps were laminated, and the deodorizing agent 1 and the water absorbing agent 2 were mixed and intercalated between all the laminated pulps. is there.

The deodorant water-absorbent sheet D having this structure is formed by embossing the outer surface of the sheet to fix the deodorant 1 and the water-absorbing agent 2 which are interposed in the deodorant water-absorbing sheet D, and other mechanical thermocompression bonding. 9 Adhere to each other.

According to this embodiment, the deodorant 1 and the water absorbent 2
Since it can be distributed in a larger amount as compared with the second embodiment, the deodorizing and water-absorbing ability is large, and the same operational effect as the second embodiment can be obtained.

The deodorant used in Examples 1 to 4 is not limited to a powder, but may be used in a granular or pebble-like size depending on the purpose.

[0030]

According to the present invention, by interposing a deodorant and a water absorbing agent in the deodorizing water absorbing sheet, it is possible to absorb moisture and remove the malodor generated from the moisture. Further, it is possible to remove the bad odor in the surroundings without being accompanied by water. Since this sheet has a non-slip surface layer laminated on one surface, when this surface is used as the lower surface, the position is unlikely to shift during use.

Since this sheet can be manufactured at low cost, it can be disposable. When discarding, the used odor can be treated together with the raw dust to remove the odor of the raw dust. Further, when it is incinerated, it is possible to remove the foul odor of smoke exhaust. This makes it possible to deal with a wide range of deodorant water absorption applications.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a deodorizing water absorbent sheet showing Example 1 of the present invention.

FIG. 2 is a cross-sectional view of a deodorizing water absorbing sheet showing Example 2 of the present invention.

FIG. 3 is a cross-sectional view of a deodorizing water absorbing sheet showing Example 3 of the present invention.

FIG. 4 is a cross-sectional view of a deodorant water absorbing sheet showing Example 4 of the present invention.

[Explanation of symbols]

 1 Deodorizer 2 Polymer 3 Holding Sheet 4 Deodorizing Water Absorption Sheet 5 Grinding Pulp 7 Nonwoven Fabric 8 Nonwoven Fabric, Vinyl or Polyethylene Sheet 9 Pulp

Claims (3)

[Claims] 1. A deodorizing water absorbing material, characterized in that a layer having a three-layer structure in which a deodorant and a water absorbing agent are interposed between two holding sheets is embossed to integrally form the three-layer structure. Sheet. 2. The deodorizing water absorbent sheet according to claim 1, wherein crushed pulp is laminated on the obverse and reverse surfaces of the deodorizing water absorbing sheet, and front and back layers are further laminated on the obverse and reverse surfaces thereof. 3. The deodorizing water absorbent sheet according to claim 1, wherein a plurality of pulps are laminated on the front and back surfaces of the deodorizing water absorbing sheet from zero, and front and back layers are further laminated on the front and back surfaces thereof.