JPS63164953A - Deodorizing composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a deodorizing composition, and more particularly to a deodorizing composition suitable for use in absorbent pads such as disposable diapers and sanitary napkins. be.

[Conventional technology]

Recently, paper diapers have been widely used for babies and adults. Generally, in commercially available disposable diapers,
The water-absorbing resin can absorb several doses of urine. In addition, sanitary napkins are also widely used for absorbing menstrual blood, secretions, etc.

When these absorbent pads such as Hl diapers and sanitary napkins are used, a bad odor is generated due to urine absorbed into the pad or excreted feces, or due to menstrual blood, secretions, etc. Sometimes.

Activated carbon and fragrances are commonly used to remove bad odors from absorbent pads such as disposable diapers and sanitary napkins.

Further, Japanese Patent Application Laid-Open No. 61-73664 discloses an aromatic material in which a fragrance is mixed into an absorbent resin used in an absorbent pad. That is, it is disclosed that an aqueous dispersion of a fragrance is kneaded with the absorbent resin absorbed and swollen, dried, and pulverized to produce powder of a water-absorbent resin containing a fragrance.

[Problem that the invention seeks to solve]

When activated carbon is used in disposable diapers, activated carbon cannot sufficiently eliminate odors such as urine.

Furthermore, when perfumes are used, the perfumes are usually oil-soluble liquids and are used by impregnating or spraying them onto bulbs, tissue paper, and the like. Therefore, the losing streak is fast,
There is a problem in that the deodorizing ability disappears in a short time.

As disclosed in Japanese Patent Application Laid-open No. 61-73664, when a fragrance is mixed into the absorbent resin used in an absorbent pad, a large amount of the fragrance evaporates during the drying process.
There is a problem that fragrances are wasted. Since fragrances are expensive, such ineffective consumption is a big economic loss. Moreover, due to such ineffective consumption, the original purpose of the deodorizing effect is also reduced. In addition, in order to reduce the volatilization of fragrance,
Although it is said that perfumes with high boiling points are preferable in Publication No. 64, the types of perfumes are limited, and a sufficient deodorizing effect cannot be obtained.

[Means for solving problems]

The present invention has solved the above-mentioned problems by providing a deodorizing composition that contains maltose and an clathrate compound in which a volatile deodorant is encapsulated with cyclodextrin, and is in powder form.

[For production]

Since the volatile deodorant is clathrated with cyclodextrin to form an clathrate compound, the volatility of the deodorant is reduced and the deodorizing effect lasts for a long time.

In addition, anhydrous crystalline maltose is used to powder the clathrate compounds of deodorants, which are dried and powdered without heating. That is, anhydrous crystalline maltose is a powder product and has the property of absorbing surrounding moisture into itself. The present invention utilizes this property of anhydrous crystalline maltose to add anhydrous crystalline maltose to a solution containing a deodorant clathrate obtained by mixing cyclodextrin and a volatile deodorant, Water in the solution is absorbed by anhydrous crystalline maltose, and once the anhydrous crystalline maltose absorbs water and becomes a block, it is ground into powder.

Anhydrous crystalline maltose is non-toxic and rapidly soluble in water;
It is easily soluble in aqueous alcohol solutions, and has excellent lipophilicity and emulsifying properties. Such properties of anhydrous crystalline maltose not only do not impair the advantages of conventionally known clathrate compounds, but also provide the clathrate compound powder of the deodorant of the present invention with even more desirable properties.

〔Example〕

The deodorant of the present invention is non-toxic and is not particularly limited as long as it is suitable for inclusion with cyclodextrin, but volatile or sublimable deodorants are suitable to improve the deodorizing effect. ing.

For example, limonene, α-pinene, γ-terpinene, isoamyl acetate, 1n-amyl vinegar, 1,8-cineole, linalool, α-terpineol, β-terpineol,
Terpineol, methyl salicylate, benzyl acetate, cinnamaldehyde, thymol, isomethyleugenol, coumarin, DEP (diethylene phthalate), DP
Odo Laser Compound (Qd.

Ra5er Compound) (trade name: a deodorant manufactured by Vaportek in the United States), NI-Fresca 800M0 (trade name: a deodorant extracted by dry distillation from camellia plants produced by Shiraimatsu Shinyaku Co., Ltd.), etc. may be used.

The cyclodextrin used in the present invention may be α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, a cyclodextrin derivative, or a mixture thereof, and may be in powder form, or Starch decomposition products containing cyclodextrin (for example, manufactured by Nihon Shokuhin Kako Co., Ltd.:
Celldex CH (-2°C) may also be used.

Furthermore, the maltose used in producing the deodorant composition of the present invention is anhydrous crystalline maltose (i.e., crystalline α-
maltose) (preferably a product manufactured by Hayashibara Co., Ltd.) is used. In the deodorizing composition of the present invention, part or all of the anhydrous crystalline maltose absorbs water and becomes maltose ice-containing crystals.

Next, a method for producing the deodorant composition of the present invention will be explained.

First, a cyclodextrin clathrate compound of a deodorant is produced by a conventionally known method for producing an clathrate compound, such as a saturated aqueous solution method or a crosstalk method.

That is, in the saturated aqueous solution method, a certain level of deodorant is added to a saturated or supersaturated aqueous solution of cyclodextrin,
When stirred at a temperature of 70° C. or lower for several tens of minutes to several hours, the deodorant is included in the cyclodextrin, producing an aqueous solution containing the clathrate compound.

In the crosstalk method, do you add water or cyclodextrin? afj
After adding A and making it into a slurry, add the required amount of deodorizer at a temperature of 70'C or less, and mix well with a mixer etc. for several tens of minutes to several hours to create a paste containing clathrate compounds. An aqueous solution is obtained.

When using powdered cyclodextrin in the kneading method, warm water (approximately 0.1 to 6 times the weight of cyclodextrin) is added to the cyclodextrin to form a paste or suspension.

On the other hand, when using starch decomposition products containing cyclodextrin or commercially available starch syrup containing cyclodextrin, approximately twice the amount of water is added since the starch syrup itself contains 25-40% to 70-80% water. Or you can use it as is.

When producing the clathrate compound as described above, the ratio of the deodorant to the host cyclodextrin is not particularly limited as long as it can clathrate the deodorant. For example, the molar ratio is 1:1f! It may be j times.

Next, anhydrous crystalline maltose is gradually added to the aqueous solution containing the clathrate compound produced as described above to form a paste. In this case, the composition of anhydrous crystalline maltose is about 1 to 6 times the amount of anhydrous crystalline maltose relative to the water layer, or
! The sugar content should be about 80% or more in one total.

Then, the paste-like material is left as it is until it forms a block. Blocking is usually achieved in one day, but it may take several days depending on the type of clathrate compound or the water content of the aqueous solution.

The generated block is ground into powder to obtain a powder containing the clathrate compound.

Note that if the aqueous solution containing the generated clathrate compound is dehydrated in advance and then anhydrous crystalline maltose is added, it can be powdered with a small amount of anhydrous crystalline maltose.

The ratio (weight ratio) of the clathrate compound of the deodorant to maltose in the deodorant composition powder of the present invention produced as described above is preferably about 1:1 to 1:4. The proportion of maltose ω must be sufficient to dry and powder the deodorant composition, and if the proportion of maltose is too high, the clathrate compound of the deodorant, which is an active ingredient, will decrease, resulting in the desired It becomes difficult to obtain the effect of

The deodorizing composition of the present invention may be applied to paper diapers or sanitary napkins as is or mixed with other substances.

For example, the deodorizing composition of the present invention may be sprayed onto a sheet-like material used for paper diapers or sanitary napkins, or may be mixed with absorbent resin powder.

FIG. 1 is a partially cutaway perspective view of an example of a paper diaper using the deodorizing composition of the present invention. This disposable diaper is made of laminated M1
A water absorbent@1 made of cotton, a water-impermeable thin film 2 such as polysheet that covers the bottom and side surfaces of the water-absorbent@1, a nonwoven fabric 4 that covers the top surface of the water-absorbent layer 1, and the water-absorbent layer 1 and three impermeable membranes 2. It consists of a water absorbing and deodorizing layer 3 provided between. The water-absorbing/deodorizing layer 3 is a water-absorbing resin powder containing the deodorizing composition powder P of the present invention.
It is mixed with.

Water-absorbing resins have the property of absorbing water, gelling, and coagulating, and include, for example, cross-linked polyacrylamide, cross-linked sulfonated polystyrene, cross-linked polyethylene oxide, cross-linked acrylate, cross-linked polyvinyl alcohol modified product, starch-acrylonitrile. These include hydrolysates of graft polymers, hydrolysates of cellulose-acrylonitrile graft polymers, self-crosslinking polyacrylates, crosslinked carboxymethyl cellulose, and the like.

A sufficient deodorizing effect can be obtained by mixing 1 to 20%, preferably 1 to 10%, of the deodorant composition powder of the present invention with respect to the water absorbent resin powder.

(Example 1) A deodorizer containing the following ingredients as main ingredients was used.

That is, limonene, α-pinene, γ-terpinene, isoamyl acetate, n-amyl acetate, 1,8-cineole,
Linalool, α-terpineol, β-terpineol, terpineol, methyl salicylate, benzyl acetate,
Cinnamaldehyde, thymol, isomethyleugenol, coumarin, DEP (diethylene phthalate), D
A deodorant containing PG (diphenylguanidine), eugenol, menthol, geraniol, and squalane as main ingredients was used.

After adding 70 parts by weight of cyclodextrin to 70 parts by weight of water to form a slurry, 30 parts by weight of the above deodorizing agent was added at a temperature of 60°C or lower, and the mixture was thoroughly stirred for 0.5 hour using a mixer. A pasty aqueous solution containing an odorant clathrate was obtained.

80 parts by weight of anhydrous crystalline maltose was added to 35 parts by weight of an aqueous solution containing the clathrate compound of this deodorant, and the mixture was thoroughly kneaded.
Thereafter, it was left at room temperature for 10 hours to solidify into a block. This was put into a pulverizer to form a powder.

When the thus obtained deodorant powder was added to a water-absorbing polymer at a ratio of 1 to 7% and used in disposable diapers, fecal odor could be removed.

(Example 2) Odo Ra5er compound was used instead of the deodorant of the first example.
(Product Name: Manufactured by VatlOrtek, USA), the powdery deodorizing composition of the present invention was produced and used in the same manner as in Example 1, and similarly good results were obtained.

(Example 3) In place of the deodorant of the first example, a deodorizer (trade name 2Nl-Fresca 800M0> manufactured by Shiraimatsu Shinyaku Co., Ltd.) extracted by dry distillation from a plant of the Camellia family was used in the first example. When the deodorizing composition of the present invention was produced and used in the same manner as above,
Similarly good results were obtained.

〔Effect of the invention〕

According to the method of the present invention, a volatile deodorant is clathrated with cyclodextrin to form a clathrate compound.
The volatility of the deodorant is reduced and the deodorizing effect lasts for an extremely long time.

According to the present invention, in order to obtain a deodorizing composition containing a powdered cyclodextrin clathrate compound, a conventional drying process is not necessary, and a pasty aqueous solution containing a clathrate compound is not heated. It is powdered. Therefore,
Even if the deodorant is a vaporizable or sublimable substance, the product can be manufactured in powder form without wasting the active ingredient, resulting in an inexpensive product.

In addition, since the deodorizing composition of the present invention is in powder form, it is easy to apply it to disposable diapers, sanitary napkins, etc., and in particular, by mixing it with powdered absorbent resin, it can be easily applied to conventional disposable diaper manufacturing equipment. It can be used without modification and is extremely convenient to use.

Anhydrous crystalline maltose is a powder product that has the property of absorbing surrounding water into itself, is non-toxic, quickly soluble in water, easily soluble in aqueous alcohol solutions, and has lipophilic and emulsifying properties. Excellent. Such properties of anhydrous crystalline maltose not only do not impair the advantages of conventionally known clathrate compounds, but also provide even more desirable properties, such as enhanced water absorption, to deodorant compositions. give.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of an example of a paper diaper using the deodorizing composition of the present invention. 1... Water-absorbing layer, 2... Water-impermeable thin film, 3...
...Water absorption/deodorizing layer, 4...Nonwoven fabric, P...Deodorant composition powder.

Claims (1)

[Claims] 1. A deodorizing composition characterized in that it is in powder form and contains maltose and an inclusion compound in which a volatile deodorant is clathrated with cyclodextrin.