JPH0856796A - Deodorant sheet - Google Patents

Abstract

PURPOSE: To remove odor from bedding or the like by covering one or both side surfaces of a fiber-like activated carbon felt with an air-permeable sheet- like member. CONSTITUTION: This deodorant sheet 1 is composed of an fiber-like activated carbon in a felt 4 held between two sheet-like members 2 which are unwoven fabric, and accordingly, ammonia as odor emitting substance having passed through the sheet-like members is efficiently trapped in micro pores in the outer surface of the fiber-like activated carbon in the felt 4. A thermomeltable adhesive sheet 6 is interposed between the lower sheet-like member 2 and the felt 4 and between the upper sheet-like member 2 and the felt 4, and are theremocompressed. Accordingly, they are melted so that the sheet-like members 2 and the felt 4 are bonded together over the entire surfaces thereof, that is, the peripheral edge parts of the sheet-like members 2 are bonded together. The deodorant sheet 2 has a high durability even against washing, and uniformly maintains therein the fiber-like activated carbon without coming off since the felt 4 and the sheet like members 2 are joined together over its entire surface, thereby it is possible to maintain satisfactory deodorizing effect and cushioning performance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing sheet having an effect of removing odor.

[0002]

2. Description of the Related Art In recent years, as the airtightness of a room has increased, the demand for clean air has increased, and the importance of eliminating unpleasant odors has become more important for a comfortable life. Of the various odors, particularly problematic are the four major malodorous substances such as ammonia, trimethylamine, hydrogen sulfide, and methylcaptan. Among various sources of such malodors, bedding has become a particular problem in recent years.

[0003]

For example, in the case of a long-term care recipient, the bedding tends to be contaminated by sweat, incontinence, spilled food, etc., while moving the caregiver when washing or drying. It is often difficult to keep it clean because it must be done. In such a case, an unusual odor may be generated from the bedding due to urine, body odor, putrefactive odor, chemical odor, etc., which may adversely affect the physical / mental health of the care recipient and the burden on the caregiver. Also grows. In addition, even in infants, the bedclothes may have an odor due to vomiting due to incontinence or vomiting, and the bedclothes are not limited to these persons, and the bedclothes easily become a source of an offensive odor due to perspiration during sleep.

Therefore, an object of the present invention is to provide a deodorizing sheet capable of removing a bad odor in bedding and the like.

[0005]

The above-described problems of the present invention are solved by the following inventions. That is, the invention described in claim 1 is a sheet used for bedding, wherein the deodorizing sheet is characterized in that both surfaces of the fibrous activated carbon felt are covered with a breathable sheet-like body. Also,
The invention described in claim 2 is a means for the deodorizing sheet, characterized in that both surfaces of the fibrous activated carbon felt are entirely adhered to a sheet-like body. The invention as set forth in claim 3 is the deodorizing sheet, characterized in that the fibrous activated carbon felt is impregnated with a chemical adsorption functional material for acidic gas and / or basic gas. Further, the invention according to claim 4 is the deodorizing sheet, characterized in that a granular body having a chemical adsorption function and a physical adsorption function is provided inside the sheet-shaped body.

The present invention will be described in detail below. The above-mentioned bedding refers to bedclothes, comforters, pillows, waist pads, cushions, mats, etc., which are mainly used when a person is lying down. In addition, the deodorizing sheet is used by being laid so as to cover these bedding and attached.

The fibrous activated carbon felt (hereinafter, simply referred to as activated carbon felt) means a fibrous body of activated carbon which is made into a felt by needle punching or heat processing. Activated carbon felt has a large adsorption area because it is made of fibrous body of activated carbon, and since it is a felt in which fibrous bodies are entangled with each other, there is no scattering of activated carbon like granular material, and the adsorption performance is reduced due to scattering. Absent. As the fibrous body of activated carbon, it is preferable that the fine pores capable of capturing the offensive odor substance are directly formed on the fiber surface. Various organic fibers and inorganic fibers are mixed into the fibrous body of activated carbon as required, and a physical adsorbent or a chemical adsorbent functional material is impregnated, adhered or applied. Furthermore, it is preferable that basic gas represented by amines such as ammonia represented by odorous components and acidic gas such as hydrogen sulfide and methylcaptan be exhibited. As the activated carbon felt, it is preferable that the activated carbon felt has appropriate cushioning properties and has strength against washing and the like.

[0008] The sheet-like material means a material that covers the fibrous activated carbon felt to protect the fibrous activated carbon felt and at the same time does not prevent odor from reaching the activated carbon felt. Examples of the sheet-like body include woven fabrics, knitted fabrics, and non-woven fabrics made of natural fibers or synthetic fibers, or mixed fibers thereof. The sheet-like material is required to have breathability in order to capture an odor, and in consideration of usability, it is preferable that it has good skin feel and hygroscopicity, more preferably antifungal and antibacterial. Sex, non-allergic or hypoallergenic. Further, in consideration of ease of handling, those which can withstand bending, compression, washing, drying by day drying, hot air, etc., various disinfections, and those which are durable and have no fiber fraying are preferred. Further, in consideration of safety, it is preferable that it is flame-retardant or non-flammable.

The sheet-shaped body and the activated carbon felt are adhered by interposing an adhesive between the sheet-shaped body and the activated carbon felt. That is, the interposition of the adhesive is performed by applying or spraying the adhesive, laminating the adhesive sheets, or impregnating the sheet-shaped body or the activated carbon felt with the adhesive in advance.

The chemical adsorption functional material is a material capable of chemically adsorbing an acidic gas such as hydrogen sulfide and mercaptans and a basic gas mainly containing ammonia and amines. For example, natural extract type deodorant liquid materials (including extracts such as citrus fruits, persimmon shibu, tea, etc.) have a chemical molecular mechanism effective for odor decomposition of flavonoids, etc. It can be used as a functional material. The impregnation on these activated carbon felts is carried out by applying or impregnating the activated carbon fibrous material or activated carbon felt.

The above-mentioned granules having a chemical adsorption function and a physical adsorption function are particles of activated carbon, zeolite, diatomaceous earth, activated alumina having a specific surface area, and various chemicals and metal oxides attached to the surface thereof. The granulated material may be mentioned. These granules are fixed to the inner surface of the sheet-like body, the surface of the activated carbon felt, or the inside of the activated carbon felt by point bonding with an adhesive.

The malodorous substance that is physically or chemically adsorbed is removed from the deodorizing sheet by washing or drying in the sun.

[0013]

According to the first aspect of the invention, the malodorous substance of the bedding is adsorbed by the surface adsorption of the activated carbon felt. Further, since it is fibrous, it does not fall off like granular activated carbon, and the deodorizing effect is maintained. According to the second aspect of the invention, the fibrous activated carbon felt is adhered and fixed to the sheet-like body, so that the integrity with the sheet-like body is always maintained. According to the invention of claim 3, the chemisorption functional material impregnated on the fibrous activated carbon felt adsorbs the basic gas and the acidic gas, so that the malodor of the bedding is effectively removed. According to the invention as set forth in claim 4, the basic gas and the acidic gas are adsorbed by the granular material having the surface adsorption function, the chemical adsorption function and the physical adsorption function of the activated carbon felt, and the bad odor of the bedding is effectively obtained. Are removed. Since the granular material is fixed by the adhesive and does not easily fall off, the granular material can exhibit the adsorption effect even after washing.

[0014]

According to the invention as set forth in claim 1, the bad odor of the bedding can be removed, a comfortable environment such as a bedroom can be secured, and the user of the bedding does not feel uncomfortable. It is possible to reduce the burden on the person who handles the bedclothes without causing discomfort to the person who handles the bedclothes. Claim 2
According to the invention described in (1), the integrity of the sheet-like body and the fibrous activated carbon felt is ensured, no twist or scale of the felt occurs due to use or washing, and the initial thickness and the uniformity of the felt are maintained, Uniformity of deodorant effect is also maintained. According to the invention as set forth in claim 3, particularly in bedding, basic gas and acidic gas such as ammonia, which has a strong offensive odor, are effectively removed, the comfort is further improved, and the burden on the bedding operator is reduced. It According to the invention as set forth in claim 4, since the granular material is fixed and the adsorbing action of the basic gas and the acidic gas is maintained even after washing or the like, the comfort can be maintained for a long period of time.

[0015]

EXAMPLE An example embodying the present invention will be described below.
A description will be given based on FIGS. 1 and 2. FIG. 1 shows the entire deodorizing sheet 1 of this embodiment. The deodorizing sheet 1 is formed in a sheet shape as a whole with an activated carbon felt 4 sandwiched between two sheet-like bodies 2.

In this embodiment, the sheet-like body 2 is a non-woven fabric made of fibers made of wood pulp and polyester and entangled with each other by hydraulic pressure, and cut into a rectangular shape having a predetermined thickness and a predetermined size. It will be done. This sheet-like body 2 has excellent breathability, hygroscopicity and non-allergenicity,
It is suitable for caregivers and infants and is safe to touch directly on the skin. An activated carbon felt 4 is entirely adhered to the inner surface side of the two sheet-like bodies 2.

In this embodiment, the activated carbon felt 4 is a fibrous activated carbon felt material made from a pitch-based carbon material and has a predetermined thickness and an appropriate cushioning property. The activated carbon felt 4 has a large contact area and also has fine pores for capturing odorous substances on the fiber surface, so that the odorous substances can be effectively removed. In addition, since the activated carbon felt 4 is made of fibrous activated carbon, it is easy to handle because there is little contamination of the surroundings due to scattering of the activated carbon powder during use. Furthermore, the activated carbon felt 4 of the present embodiment has a significantly improved adsorption performance of basic gas such as ammonia and acidic gas such as hydrogen sulfide and methylcaptan by surface-attaching the natural deodorizing liquid to the fibrous activated carbon. It is a thing.

The activated carbon felt 4 is entirely adhered to the upper and lower sheet-like bodies 2 by a hot-melt adhesive sheet 6.
The hot-melt adhesive sheet 6 is formed to have substantially the same size as that of the sheet-like body 2 and adheres the activated carbon felt 4 and the sheet-like body 2 at the same time as bonding the peripheral edges of the upper and lower sheet-like bodies 2. . The heat-meltable adhesive sheet 6 is melted by being heat-compressed after being interposed between the lower sheet-shaped body 2 and the activated carbon felt 4 and between the activated carbon felt 4 and the upper sheet-shaped body 2, respectively. The sheet-like body 2 and the activated carbon felt are entirely adhered to each other, and the peripheral edges of the sheet-like body 2 are adhered to each other.

Next, the operation and effect of using the deodorizing sheet 1 thus formed laid on the bed of a care giver will be described. The deodorizing sheet 1 does not quickly absorb an offensive odor generated from sweat, urine, or the like of a care giver and accumulate an odor in the bed. That is, since the sheet-like body 2 is permeable to air, the odorous substances such as ammonia, trimethylamine, hydrogen sulfide, and methylcaptan that have passed through the sheet-like body 2 are efficiently generated by the fine pores on the surface of the fibrous activated carbon 4a of the activated carbon felt 4. To be captured. Also, these are fibrous activated carbon 4
It is chemically adsorbed by the natural deodorant added to a,
The odor is promptly removed. Even if sweat and urine permeate the activated carbon felt 4 as they are, the odor is removed while passing through the entangled fibrous activated carbon 4a.

Further, in this deodorizing sheet 1, the activated carbon felt 4 has a cushioning property and the sheet-like body 2 has a good feel to the touch, so that even if the sheet-like body 2 is brought into direct contact with the body, the caregiver feels uncomfortable. There is no. Furthermore, since it is possible to directly contact the body, the odor can be captured more effectively.

By removing such odors, the medical caregiver can spend comfortably, the mental and physical health of the medical caregiver is maintained, and not only the bedding but also the room does not have an offensive odor. On the other hand, for those who care for the care giver, if the odor of the bedding is removed, the mental burden of care can be reduced and the bedding can be easily replaced.

Further, the deodorizing sheet 1 which has captured the odor recovers the function of capturing the odorous substance again by removing the odorous substance by washing or drying in the sun, and can repeatedly exhibit the same odor capturing function. . Particularly, in the deodorizing sheet 1 of the present embodiment, since the activated carbon felt 4 is entirely adhered to the sheet-like body 2, the washing resistance is high, and the fibrous activated carbon 4a is surely and uniformly maintained without dropping off. As a result, good deodorizing effect and cushioning property are maintained.

In this example, the natural deodorizing liquid was used as the chemical adsorption functional material, but as shown in FIG.
By sandwiching the granular material 8 such as granular charcoal, zeolite, or activated alumina carrying a deodorizing liquid between the sheet-like materials 2 with an adhesive, it is possible to regenerate and continuously exert a chemical / physical adsorption effect. You can also

Further, in the present embodiment, the case where it is used by a care giver has been described, but the same effect can be obtained even when it is used by a normal healthy person or an infant.

[Brief description of drawings]

FIG. 1 is an overall view (a) and (a) of a deodorizing sheet of this embodiment.
It is an expanded sectional view (b) of the circle mark part of a figure.

FIG. 2 is a diagram showing a usage state of a deodorizing sheet.

FIG. 3 is a diagram showing various cross-sectional structures when a deodorant sheet is provided with a granular body having a chemical / physical adsorption function.

[Explanation of symbols]

 1 Deodorizing sheet 2 Sheet-like body 4 Activated carbon felt 6 Hot-melt adhesive sheet 8 Granular body

Claims (4)

[Claims] 1. A deodorizing sheet for use in bedding, characterized in that one or both sides of a fibrous activated carbon felt is covered with a breathable sheet. 2. The deodorizing sheet according to claim 1, wherein both surfaces of the fibrous activated carbon felt are entirely adhered to the breathable sheet-like body. 3. The deodorizing sheet according to claim 1, wherein the fibrous activated carbon felt is impregnated with a chemical adsorption functional material for basic gas and / or acid gas. 4. The deodorizing sheet according to claim 1, wherein a granular material having a chemical adsorption function and a physical adsorption function is provided inside the sheet-shaped body.