JPH06285141A - Deodorant, and deodorizing material and deodorazing device using the deodorant - Google Patents

Abstract

PURPOSE:To provide a stable deodorizing peformance which is not influenced by degrees of dry conditions by mixing an anion exchange resin, cation exchange resin and moisture retaining material with each other. CONSTITUTION:A moisturizing means 4 is set on a deodorizing part 3 while a deodorizing sheet B is set inside so as to be sandwitched by a metal net 5 and to cover the front face of a filter 1. The sheet B is structured that anion exchange resin 32 and cation exchange resin 33 being the constituting elements of deodorant is carried in a mixed condition by an air permeable sheet 31 which is composed of two nonwoven sheets made of fibers having a good moisture retaining performance and between the two sheets a mixture of the resins 32, 33 is disposed by a proper amount for every small area and heat fused and sealed. The moisture retaining means 4 is composed of a water storing tank 41 and a water path 42, while the tip of the path 42 is connected to the sheet 31 of the sheet B so that th water in the tank 41 is supplied by a proper amount to the whole of the sheet 31.

Description

Detailed Description of the Invention

[0001]

[Object of the Invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing agent for paper diapers, sanitary pads, refrigerators, etc., and a deodorizing material and a deodorizing apparatus using this deodorizing agent.

[0002]

BACKGROUND OF THE INVENTION As life has become richer, demands for removing odors range from so-called odors to odors that are familiar to us in our daily lives. Activated carbon and zeolite have been well known as deodorants, but recently various other deodorants have been developed. (See No. 63-54935) and various white color products are being developed. However, since this powder is a fine powder of the order of micron or submicron, it requires processing for supporting it so as not to scatter, and its application range is limited.
In such a case, the mixture of anion exchange resin and cation exchange resin exhibits a deodorizing effect superior to a close aggregate of zinc oxide, titanium dioxide, and water molecules against various odors under appropriate moisturization. Based on this knowledge, the present invention was accomplished.

[0003]

[Technical Items Attempted to Develop] However, the mixture of the anion exchange resin and the cation exchange resin has poor deodorizing performance under drying, and is stable in various odors, so that it is appropriate. It turns out that it needs a lot of water. Therefore, the present invention is such that the mixture of the anion exchange resin and the cation exchange resin can exhibit stable deodorizing performance without being influenced by the degree of drying.

[0004]

[Constitution of the invention]

[Means for Achieving the Object] That is, the deodorant according to the first invention of the present application is characterized by being composed of a mixture of an anion exchange resin, a cation exchange resin and a humectant.

The deodorant material according to the second invention of the present application is characterized in that a mixture of an anion exchange resin, a cation exchange resin and a humectant is supported on a porous body.

Further, the deodorizing apparatus according to the third invention of the present application has a deodorizing section and a moisturizing means communicating with the deodorizing section, and the deodorizing section carries an aeration carrying a mixture of an anion exchange resin and a cation exchange resin. A porous sheet body, wherein moisture is supplied from the moisturizing means to the breathable sheet body, and ventilation means is attached to allow the odor to pass through the breathable sheet body. To do. Therefore, the above object is to be achieved.

[0007]

In the present invention, since the humectant is further mixed in the mixture of the anion exchange resin and the cation exchange resin, and the humectant is supported on the porous material, the anion exchange resin and the cation exchange resin are exchanged. Moisture will be present with certainty to the resin. Further, since the moisture is supplied from the moisturizing means to the breathable sheet body carrying the mixture of the anion exchange resin and the cation exchange resin, the moisture is always present. When the odor is transmitted through the sheet body, the odor surely comes into contact with the anion exchange resin and the cation exchange resin that retain an appropriate amount of water.

[0008]

EXAMPLES As the anion exchange resin and the cation exchange resin used in the present invention, those commonly known can be used. A general anion exchange resin is RN (O
H ₃₎ has _three of the group, but which is the type of commercial products are usually chloride, used as this was the -OH type with sodium hydroxide aqueous solution. Further, the cation exchange resin has an R—SO ₃ H group, and the commercially available product is in the form of sodium salt,
This is made into a -H type using an aqueous solution of hydrochloric acid. Further, when removing odorous hydrogen sulfide, the anion exchange resin may release a trace amount of amine to give off a strange odor.
It is advisable to mix by weight and to remove this amine by means of a cation exchange resin, and for this reason the present invention is based on a mixture of anion exchange resin and cation exchange resin.

The moisturizer used in the present invention is not special, and salts having various water of crystallization such as calcium chloride salt can be prepared by adjusting the particle size and the addition amount thereof.
Various substances such as deliquescent substances, hygroscopic substances, and water-absorbing substances can be applied, including magnesium chloride, lithium chloride, CaO, BaO, silica gel, zeolite, activated alumina and the like. For example, a water-absorbent polymer that absorbs water and swells instantly when water is poured and exhibits water absorption about 1,000 times can be used. Water-absorbent polymers are classified from the raw material side into starch-based, cellulose-based, polyacrylic acid-based, poval-based, polyoxyethylene-based and other synthetic polymer-based polymers, and from the hydrophilization method, polymerization of hydrophilic monomers, It is classified by CM reaction for hydrophobic polymer, graft polymerization of hydrophilic monomer for hydrophobic polymer, hydrolysis reaction of nitrile group, ester group, etc. From the insolubilization method, it is refined by a crosslinking agent and self-crosslinked. It is classified into reticulation reaction, reticulation reaction by irradiation of radiation, introduction of hydrophobic group or crystal structure into water-soluble polymer, and the like.
The product form is classified into a powder form, a film form, a fibrous form and the like, and an appropriate form can be used depending on the use form of the deodorant.

[0012] Further, in addition to using a substance capable of retaining its own physical properties alone, various mixtures, and even those in a mixed state of them with a porous or microporous body, a fiber aggregate, etc. good. As an example of such a thing, vinyl acetate 50-99.8 mol%, unsaturated carboxylic acid 50-0.
A mixture of a saponification product of a copolymer obtained by saponifying 70 mol% or more of a vinyl acetate component of a copolymer consisting of 2 mol%, and a deliquescent substance, and further containing a short fibrous substance and so on. Since this product can be spread and molded into a sheet, it can be obtained as a sheet-shaped deodorant by adding a mixture of an anion exchange resin and a cation exchange resin therein.

The saponified copolymer contains vinyl acetate in an amount of 50 to 99.8 mol% and unsaturated carboxylic acid in an amount of 50 to 99.8 mol%.
It is copolymerized in a proportion of 0.2 mol%, and 70 mol% or more of its vinyl acetate component is saponified. Further, 80 to 99.8 mol% of vinyl acetate and 20 to 20% of unsaturated dicarboxylic acid are used. A saponification product of a copolymer having a content of 0.2 mol% and a saponification degree of 70 mol% or more is suitable. On the other hand, as the unsaturated carboxylic acid, a monocarboxylic acid such as (meth) acrylic acid or crotonic acid, preferably Are (anhydrous) maleic acid, fumaric acid, itaconic acid, glutaconic acid, allylmalonic acid and the like, and their monoesters such as methyl, ethyl and propyl esters, and diesters. In addition, these are subjected to usual solution polymerization, and the obtained copolymer is saponified to a predetermined ratio using an alkali catalyst such as caustic soda and sodium methylate. It is better to heat-treat for 1-360 minutes. The deliquescent salts are calcium chloride,
Examples thereof include salts having various water of crystallization such as dihydrate, tetrahydrate, and hexahydrate, magnesium chloride, lithium chloride and the like. Further, as the short fibrous substances added to these, rayon table cut products, wool, natural fiber cut products such as cotton, nylon, polyester, polyvinyl chloride, polyvinylidene chloride, polyolefin, vinylon and other synthetic fiber cut products, Any other pulp powder, glass fiber, ceramic fiber, asbestos fiber cut product, iron, copper or other metal fiber cut product, animal hair cut product, etc.
A fiber having a fiber length of about 0.002 mm and a fiber length of about 15 to 0.05 mm can be preferably used. In addition, depending on the material, fibrous substances such as these short fibrous substances can be used alone as a moisturizing agent.

Therefore, the deodorant according to the first invention of the present application is such that the anion exchange resin and the cation exchange resin have the above-mentioned mixing ratio, and the moisturizing agent has an appropriate amount in consideration of its water absorption property or water retention property. It is made by mixing and is used by filling an appropriate breathable case or bag. The deodorizing material according to the second invention of the present application is formed by supporting the deodorizing agent on a porous body such as paper, nonwoven fabric, sponge body by an appropriate method. For this, for example, paper, nonwoven fabric, after applying a water-resistant adhesive or the like to a porous body such as a sponge body, the deodorant of the present invention is sprinkled and fixed, sandwiched between these porous bodies, and sealed.
At this time, a thermoplastic porous body is welded to form small compartments for encapsulation, heat or pressure is applied to the porous body for pressure bonding, papermaking, non-woven fabric is sprinkled and entangled, and further porous It can be supported by an appropriate method such as addition when a foam is obtained as a body. The deodorant of the present invention may be used alone, or in some cases, a separate deodorant such as an aggregate in which zinc oxide, titanium dioxide and water molecules are tightly bound may be added and used.

The deodorant and deodorant thus obtained can be used in almost any place where the odor is to be removed, a human body wearing product or a deodorizing function product of each part, and can be used in a form suitable for each place. For example, in paper diapers and sanitary pads, a moisturizer is added in the vicinity of the conventional water-absorbing polymer layer, and in order to remove odors from sheds, chests, refrigerators, cupboards, etc. It can be used by putting it in a case. Therefore, according to the deodorant and the deodorant of the present invention, since the moisture is reliably retained between the anion exchange resin and the cation exchange resin due to the presence of the moisturizer, the odor is sure to have an appropriate moisture content. Is contacted with the moistened anion exchange resin and cation exchange resin, and the anion exchange resin and cation exchange resin exhibit a stable deodorizing effect against various odors such as acidity and basicity.

Therefore, using the deodorant of the present invention, 120 cc
173 ppm of hydrogen sulfide gas was enclosed in a glass container having a constant space, and 0.01 g of the sample (excluding the weight of the moisturizing agent) was put in the glass container to measure the decrease in the hydrogen sulfide gas concentration with the lapse of time. As a result, in just 5 minutes 75%, 20
After a minute, the removal rate was 99%. Then, when an aggregate in which the zinc oxide, titanium dioxide, and water molecules are tightly bound at an initial concentration of 251 ppm is granulated to about 1 to 2 mm, as shown in FIG. After 20 minutes, the value was 95%, so
It was confirmed that the deodorant of the present invention is extremely excellent. At this time, the mixture of the anion exchange resin and the cation exchange resin contained 42% of water on average.

Further, in the same manner as described above, 100 ppm of ammonia gas was sealed in a glass container having a constant space of 3000 cc, and 3.0 g (excluding the weight of the moisturizer) of the same sample was put in this, and the same as above. When the decrease of the ammonia gas concentration was measured, it was 62% in 5 minutes as shown in FIG.
Deodorized 98% in 20 minutes, whereas the initial concentration is 90ppm
It was confirmed that the comparative product, which had a removal rate of 38% in 5 minutes and 89% in 20 minutes, also exhibited an excellent deodorizing effect.

Next, a deodorizing device according to a third invention of the present application, which is an application of the deodorizing agent or deodorizing material of the present invention, will be described. FIG. 3 shows the deodorizing device of the present invention configured as an air purifier A, in which 1 is a filter, 2 is a fan, 3 is a deodorizing unit, and the deodorizing unit 3 is connected to a supply unit. A wetting means 4 is additionally provided, and the deodorizing functional sheet body B is internally provided so as to be sandwiched by the wire mesh 5 so as to cover the front surface of the filter 1. The deodorant function sheet body B is
The anion exchange resin 32 and the cation exchange resin 33, which are the constituents of the deodorant, are supported in a mixed state on the breathable sheet body 31, but in this embodiment, the nonwoven fabric sheet 2 made of fibers having good moisture retention is used. Breathable sheet body 3
1, a mixture of the anion exchange resin 32 and the cation exchange resin 33 is placed in each small section in an appropriate amount and heat-sealed and sealed. The deodorizing function sheet B is equivalent to the deodorizing material of the present invention from which the moisturizing agent has been removed. Further, moisture is supplied to the deodorant function sheet body B from the moisturizing means 4. That is, the moisturizing means 4 is composed of a water storage tank 41 and a water channel 42 using capillary action that is drawn from the water storage tank 41.
The two ends are connected to the breathable sheet body 31 of the deodorant function sheet body B, and the appropriate amount of water in the water storage tank 41 is supplied to the whole breathable sheet body 31.

Therefore, when the fan 2 is operated, the odor-containing air sucked from the rear surface of the fan 2 first permeates the front filter 1 to remove dust there, and then the deodorizing function sheet body B is continued. The mixture of the anion exchange resin 32 and the cation exchange resin 33 is carried on this, and the water absorbed by the capillarity phenomenon from the water storage tank 41 spreads over them. A proper amount of water is given to the mixture of the exchange resin 32 and the cation exchange resin 33, and the air that permeates the mixture is deodorized stably in the same manner as with the deodorant. Therefore, the indoor air is a breathable sheet body 31 carrying a mixture of the anion exchange resin 32 and the cation exchange resin 33 in the filter 1 and the deodorizing device.
To be cleaned.

Next, the deodorizing apparatus of the present invention configured as the humidifier C will be described with reference to FIG. That is, this is a tank 61, a water storage tank 62, and an ultrasonic generator 63.
It is equivalent to the conventional fog water generation mechanism in a humidifier as it is, and a mixture of anion exchange resin 32 and cation exchange resin 33 similar to the above is provided in the path of the fog hole 7 and preferably the intake hole 8. A deodorizing function sheet body B composed of the carried air-permeable sheet body 31 is internally provided. Therefore, the water supplied from the water storage tank 62 is
It is atomized by the ultrasonic generator 63 inside, and its volume expansion causes it to flow out of the housing. At this time, when passing through the deodorizing function sheet body B of the fumarole 7, the anion exchange resin 32 And a cation exchange resin 33. This device is not provided with a mechanism as a special ventilation means, but since the volume expansion due to atomization of water is used, the ventilation means is substantially provided. Of course, a fan may be attached to forcefully eject the gas.

Therefore, if the ultrasonic generator 63 is operated,
The water atomized by the ultrasonic generator 63 flows out of the housing due to its volume expansion, and at that time, the deodorizing function sheet body B carrying the mixture of the anion exchange resin 32 and the cation exchange resin 33 is carried out. Since the air is permeated while giving an appropriate amount of water, various odors are deodorized, and fog water with less odor can be discharged to the outside of the housing, as in the above-described embodiment. In addition, since the air flowing out together with the fog water is sucked from the intake hole 8, it is possible to deodorize the room air when passing through the intake hole 8 and the fumarole 7, if not so much in quantity. The smell of water in the tank 62 is also eliminated,
It can be humidified indoors as refreshing fog water. Further, in this case, it is preferable to use a fine wire mesh as the breathable sheet body because it does not have a ventilation resistance of fog water.

[0020]

As described above, according to the deodorant and deodorant of the present invention, water is surely present between the anion exchange resin and the cation exchange resin, and the odor is surely exchanged with the anion exchange resin having the water. It comes into contact with the resin and can exhibit stable deodorizing performance against various odors. Further, according to the deodorizing apparatus of the present invention, since the moisture from the moisturizing means is supplied to the breathable sheet body carrying the mixture of the anion exchange resin and the cation exchange resin, the moisture always exists, and Since the odor is permeated through the breathable sheet body by the ventilation means, the odor surely comes into contact with the anion exchange resin and the cation exchange resin having a proper amount of water, and stable deodorization against various odors You can show the performance.

[Brief description of drawings]

FIG. 1 is a graph showing the results of testing the deodorizing effect of the deodorant of the present invention on hydrogen sulfide.

FIG. 2 is a graph showing the results of testing the deodorizing effect of the deodorant of the present invention on ammonia.

FIG. 3 is a partial cross-sectional side view of an embodiment in which the deodorizing apparatus of the present invention is applied as an air purifier.

FIG. 4 is a partial cross-sectional side view applied as a humidifier as another embodiment of the deodorizing apparatus of the present invention.

[Explanation of symbols]

 A Air purifier B Deodorant function sheet body C Humidifier 1 Filter 2 Fan 3 Deodorizing part 31 Breathable sheet body 32 Anion exchange resin 33 Cation exchange resin 4 Humidification means 41 Water storage tank 42 Water channel 5 Wire mesh 61 Water tank part 62 Water storage tank 63 Ultrasonic generator 7 Vent hole 8 Intake hole

[Procedure amendment]

[Submission date] April 27, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

[0008]

EXAMPLES As the anion exchange resin and the cation exchange resin used in the present invention, those commonly known can be used. A general anion exchange resin is RN (C
H ₃₎ has _three of the group, but which is the type of commercial products are usually chloride, used as this was the -OH type with sodium hydroxide aqueous solution. Further, the cation exchange resin _R-SO 3 H
The commercially available product is in the form of a sodium salt, which is converted to -H form using an aqueous solution of hydrochloric acid. Further, when removing odorous hydrogen sulfide, the anion exchange resin may release a trace amount of amine and may give off a strange odor.
It is advisable to mix up to 50% by weight and to remove this amine with a cation exchange resin, and for this reason the present invention is based on a mixture of anion exchange resin and cation exchange resin.

Claims (3)

[Claims] 1. A deodorant comprising a mixture of an anion exchange resin, a cation exchange resin and a humectant. 2. A deodorizing material comprising a mixture of an anion exchange resin, a cation exchange resin and a humectant supported on a porous body. 3. A breathable sheet body having a deodorizing portion and a moisturizing means communicating with the deodorizing portion, wherein the deodorizing portion carries therein a breathable sheet body carrying a mixture of an anion exchange resin and a cation exchange resin. A deodorizing device characterized in that moisture is supplied from a moisturizing means to the body, and ventilation means is attached to allow the odor to permeate the breathable sheet body.