JPH11276565A - Inner sheet for refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an inner sheet for refrigerator that is anti-bacterial, has an enough function to deodorize, can keep the inside of a refrigerator hygienic, and, in addition, its manufacturing does not cost much and is easy, and also is good in use convenience. SOLUTION: This inner sheet 1 for refrigerator mounts a layer 4 of plastic resin that contains an antibacterial agent on a gas-permeable non-woven cloth 2 which contains a layer 3 of activated carbon, The non-woven cloth 2 is composed of the upper part 2a and the lower part 2b. The layer 3 of deodorizing activated carbon is arranged as it shapes blocks in a constant interval between the upper and the lower parts and it makes cross stripes as a whole. For the layer 4 of plastic resin that contains an antibacterial agent and is arranged on the non-woven cloth 2, plastic resins, for example, polyethylene, polypropylene, polyester and so on, are marked from the view of their plastic characteristic. However, because heat resistance is not necessary, polyethylene may be most appropriate from the view of its cost. For the antibacterial agent, from the view of its safety for foods, a highly stable inorganic antibacterial agent made of the ore which contains e.g. silver ions and so on should be used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator insole sheet laid on a shelf in a refrigerator.

[0002]

2. Description of the Related Art In order to prevent food from spilling in a refrigerator and contaminate the surroundings, and to prevent odors generated from the food from being trapped in the refrigerator and to maintain hygiene in the refrigerator, the insole is placed on a shelf in the refrigerator. Sheets are laid. Conventionally, the insole sheet includes, for example, a single layer based on a resin such as polypropylene and a layer in which a plurality of resin layers are laminated.

Some of such sheets have an antibacterial function. In the case of the antibacterial type, an antibacterial agent is kneaded into the resin (or into the resin on the surface side when a plurality of resin layers are laminated). In this case, for example, an inorganic antibacterial agent having high stability, which is made of an ore containing silver ions or the like, is often used in consideration of food safety.

[0004]

It is conceivable to further provide a deodorizing function to such an antibacterial type sheet.
Although a deodorant may be mixed with the resin for the sheet, sufficient deodorizing action cannot be obtained due to mixing with the antibacterial agent or kneading into the plastic resin.

An object of the present invention is to eliminate the disadvantages of the prior art, not only to have antibacterial properties, but also to have a sufficient deodorizing function, to keep the inside of the refrigerator hygienic, to be inexpensive and easy to manufacture. Another object of the present invention is to provide an insole sheet for a refrigerator that is easy to use.

[0006]

According to the present invention, in order to achieve the above-mentioned object, a non-woven fabric having an activated carbon layer and a gas-permeable layer is provided.
The gist of the invention is that a plastic resin layer containing an antibacterial agent is provided, and that the activated carbon layer is provided in a block shape at intervals and a lattice pattern is formed on the nonwoven fabric by the activated carbon layer.

According to the first aspect of the present invention, since the activated carbon layer having a deodorizing effect is included in the nonwoven fabric separately from the plastic resin layer containing the antibacterial agent, the activated carbon is mixed with the plastic resin. No deodorant function can be fully exhibited. In addition, since the nonwoven fabric containing the activated carbon layer was made to have air permeability, when this sheet was laid on a shelf in a refrigerator, when the odor from below passed through the nonwoven fabric sheet, it was provided here. The odor is directly adsorbed on the activated carbon layer.

The shelf surface can be kept hygienic by the plastic resin layer containing the antibacterial agent provided on the nonwoven fabric.

According to the present invention, since the antibacterial agent is provided on one surface of the nonwoven fabric, the deodorizing function can be sufficiently exhibited without mixing with the activated carbon layer. In addition, non-woven fabric
Since it is breathable, when the sheet is laid on a shelf in a refrigerator, odor can be adsorbed from above and below. Since the side on which the antibacterial agent is provided is printed, the side can be identified and the usability is good.

According to the third aspect of the present invention, in addition to the above-mentioned functions, when the nonwoven fabric is cut into an arbitrary size according to the refrigerator size at the time of use, the nonwoven fabric is cut along the lattice pattern or at the intersection of the lattice pattern. Since the portion can be used as a guide, cutting can be easily performed.

[0011]

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a first embodiment of an insole sheet for a refrigerator according to the present invention, and FIG.
FIG. 1 is a longitudinal sectional front view of a main part of the same. A sheet 1 of the present invention is composed of a breathable nonwoven fabric 2 including an activated carbon layer 3 and a plastic resin layer 4 containing an antibacterial agent provided thereon.

The nonwoven fabric 2 is composed of an upper member 2a and a lower member 2b, and an interval is provided between the upper member 2a and the lower member 2b so that an activated carbon layer 3 as a deodorant is formed in a lattice pattern as a whole. In the form of a block. Here, the reason why the member serving as the main body of the sheet 1 is made of the nonwoven fabric 2 is to secure air permeability and appropriate processing such as lamination, and if it is possible to secure these functions, a general cloth or the like can be used. Although it is possible to use a warif (woven fabric of artificial fiber), the nonwoven fabric 2 is most suitable in terms of cost and appropriate processing. In addition, the deodorant includes liquid and fine powder deodorant materials. Here, activated carbon is used because there is a granular material having a form suitable for forming a sheet by the nonwoven fabric 2.

The plastic resin layer 4 containing an antibacterial agent provided on the nonwoven fabric 2 may be, for example, a resin such as polyethylene, polypropylene, or polyester in consideration of processing suitability, but is not required to have heat resistance. Therefore, in the case of the present invention, polyethylene is optimal in terms of cost.

As the antibacterial agent, an inorganic antibacterial agent having a high stability, for example, using an ore containing silver ions or the like as a raw material is used in consideration of safety for food. In this case, the organic type is not preferable because it has a problem in terms of food safety.

The antimicrobial agent is contained as a plastic resin in the polyethylene resin. Here, the reason why the antibacterial agent is contained in the plastic resin is that the nonwoven fabric 2 is provided with the plastic resin layer 4.
This is for imparting an antibacterial effect to the rubber.

Next, a method for producing the sheet 1 of the present invention will be described. For example, kneading an antibacterial agent into a plastic resin made of polyethylene to produce a plastic film,
Alternatively, a plastic for coating is manufactured. In this case, the antibacterial agent used on the basis of the material kneaded into the plastic is in the form of a powder called a master batch, and is in a form easily kneaded into the plastic.

On the other hand, an adhesive is mixed with activated carbon. Activated carbon may be in the form of powder, granules, fibers, or the like. In the present invention, granules are used. In addition, a polyethylene resin, a polypropylene resin, or the like is used as the adhesive. Then, the activated carbon 6 mixed with the adhesive is transferred and applied to the upper surface of the lower member 2b of the nonwoven fabric 2 while dropping the activated carbon 6 into a roll 5 having a lattice-like surface as shown in FIG. In this case, the activated carbon 6 is dropped into the roll 5 by, for example, pressing the activated carbon 6 into a lattice-shaped depression on the surface of the roll 5 with a pressing member such as a spatula.
b is formed in a lattice shape in the state of being transferred and applied to the upper surface of b.

After the activated carbon 6 is transferred and applied to the upper surface of one lower member 2b, the lower surface of the other upper member 2a is bonded to this surface. As a result, the activated carbon layer 3 in which the adhesive is mixed is provided between the lower member 2b and the upper member 2a in a lattice shape, and is bonded in a sandwich state.

In this state, in a portion where the activated carbon layer 3 does not exist, the lower member 2b and the upper member 2a are directly bonded together by a nonwoven fabric. The portion where the activated carbon layer 3 does not exist is the portion where the roll 5 is not recessed.
The lower member 2b and the upper member 2
The lower member 2b and the upper member 2a are directly bonded to each other with the adhesive permeated from the activated carbon layer 3 between the nonwoven fabrics.

Next, a plastic resin layer 4 made of a plastic resin containing an antibacterial agent is provided on the upper surface of the nonwoven fabric 2 having the activated carbon layer 3 sandwiched as described above. In this case, the plastic resin layer 4
In the case of a plastic film, it is adhered with an adhesive such as a polyethylene resin or a polypropylene resin, and in the case of a plastic for coating, it is applied directly on the nonwoven fabric 2.

In this manner, the sheet 1 in which the plastic resin layer 4 containing the antibacterial agent is provided on the upper surface of the nonwoven fabric 2 having the activated carbon layer 3 provided in a sandwich state is formed. Therefore, the sheet 1 is cut into an appropriate size, packed and sold. In addition, it is also possible to sell it in a roll form and cut it to an arbitrary size by the user. In this case, the activated carbon layer 3 is formed in a non-woven fabric 2 in a lattice pattern, and this lattice pattern is seen through the upper member 2a or the lower member 2b. Since the intersection of the patterns can be cut as a guide, the cutting can be easily performed. As a cut guide, pitch printing with a lattice pattern may be performed on the upper surface of the upper member of the nonwoven fabric.

Then, the sheet 1 which has been cut in advance or the sheet 1 which has been cut according to the refrigerator size by the user
When used on a shelf in a refrigerator, the antibacterial agent contained in the plastic resin layer 4 constituting the sheet 1 keeps the shelf sanitary.

Since the nonwoven fabric 2 has air permeability, the odor from below the shelf on which the sheet 1 is laid passes well through the nonwoven fabric 2, and at this time, the odor from the activated carbon layer 3 sandwiched by the nonwoven fabric 2 is generated. Is directly adsorbed. As is well known, the activated carbon 6 has a large number of pores in the amorphous portion and has a large surface area, so that it can adsorb odors well.

The activated carbon layer 3 having this deodorizing action
Is provided in the non-woven fabric 2 separately from the plastic resin layer 4 containing the antibacterial agent, so that the activated carbon 6 is not mixed with the plastic resin to cover the molecules having the deodorizing effect with the plastic resin, so that the deodorant is prevented. The odor function can be fully exhibited.

In the first embodiment described above, the plastic resin layer 4 contains an antibacterial agent. However, as a second embodiment, the antibacterial agent is directly provided on one surface of the nonwoven fabric 2 and on the side of the upper member 2a, and printing is performed on this surface. By applying the antibacterial agent, the surface provided with the antibacterial agent can be identified. In this case, as a method of providing the antibacterial agent, a method of applying a solution containing the antibacterial agent to the surface of the nonwoven fabric to provide the antibacterial agent, a method of using a nonwoven fabric formed by fibers into which the antibacterial agent is kneaded, and the like can be considered.

[0026]

As described above, in the refrigerator insole sheet of the present invention, the activated carbon layer having a deodorizing effect is contained in the nonwoven fabric separately from the plastic resin layer containing the antibacterial agent. It does not mix with the resin, and can sufficiently exhibit the deodorizing function. In addition, since the nonwoven fabric containing the activated carbon layer was made to have air permeability, when this sheet was laid on a shelf in a refrigerator, when the odor from below passed through the nonwoven fabric sheet, it was provided here. The odor is directly adsorbed on the activated carbon layer.

The shelf surface can be sanitarily held by the plastic resin layer containing the antibacterial agent provided on the nonwoven fabric.

Further, when the nonwoven fabric is cut into an arbitrary size in accordance with the dimensions of the refrigerator at the time of use, the nonwoven fabric can be taken along the lattice pattern or at the intersection of the lattice pattern as a guide.
Cutting can be easily performed.

Further, when the antibacterial agent is directly provided on one side of the nonwoven fabric, printing on this side enables the discrimination of the relevant side, which is convenient.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an insole sheet for a refrigerator according to the present invention.

FIG. 2 is a longitudinal sectional front view of a main part showing an embodiment of the insole sheet for a refrigerator of the present invention.

FIG. 3 is an explanatory view of a step of providing an activated carbon layer on the nonwoven fabric of the insole sheet for a refrigerator according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Sheet 2 ... Nonwoven fabric 2a ... Upper member 2b ... Lower member 3 ... Activated carbon layer 4 ... Plastic resin layer 5 ... Roll 6 ... Activated carbon

Claims (3)

[Claims] 1. An insole sheet for a refrigerator, wherein a plastic resin layer containing an antibacterial agent is provided on a breathable nonwoven fabric containing an activated carbon layer. 2. An insole sheet for a refrigerator, wherein an antibacterial agent is provided on one surface of a nonwoven fabric containing an activated carbon layer, and printing is performed on the surface provided with the antibacterial agent. 3. The insole sheet for a refrigerator according to claim 1, wherein the activated carbon layer is provided in a block shape at intervals, and a lattice pattern is formed on the nonwoven fabric by the activated carbon layer.