JPH0611296B2 - Deodorant material - Google Patents

Description

TECHNICAL FIELD The present invention relates to a deodorant material. More specifically, it relates to a deodorant material in which a liquid deodorant substance is held in a granular form.

[Conventional technology]

As a method of eliminating various odors including a bad odor, sensory deodorant, chemical deodorant, physical / chemical deodorant, physical adsorption deodorant,
Methods such as biological deodorization are used.

At present, activated carbon is generally used as a deodorant for malodor, but the action of activated carbon is physical adsorption and deodorization. Therefore, when the adsorption reaches the saturation point, not only the effect decreases, but also ammonia. It has a defect that it has almost no adsorption capacity for.

On the other hand, Japanese Examined Patent Publication No. 46-27704 describes a method for preserving meat products, which uses amino acids or betaine type amphoteric surfactants, sorbitan nonionic surfactants and nonanol (nonyl alcohol) for meat and meat. It is stated that the treatment with a composition containing sucrose imparts an antiseptic and bactericidal effect thereto.

It has been confirmed that such a composition not only exhibits antiseptic and bactericidal effects, but is also effective in removing the peculiar odor emitted from clothes, containers, etc. attached during the handling thereof. The composition is a liquid composition, and for the purpose of antiseptic sterilization, it may be used by brush coating or spraying a diluted solution thereof, but when it is used for deodorization, it is necessary to handle it. There are some difficulties.

[Problems to be solved by the invention]

Therefore, the present inventors have studied that the effectiveness of the deodorizing action of the above composition is continuously exhibited, and that the handling property thereof is also improved, and as a result, the SiO ₂ microporous beads are porous. Therefore, it was found that it is effective to impregnate this granular material with a liquid deodorant composed of the above composition, paying attention to the fact that the amount of water retained is large.

At the same time, by holding the deodorant in the granular state while maintaining the liquid state, and coexisting a water-absorbing substance there to suppress the evaporation of water in order to exert its deodorizing effect continuously, It was also found to be effective.

[Means for solving problems]

Therefore, the present invention relates to a deodorant material, which comprises an amino acid type or betaine type amphoteric surfactant, a sorbitan nonionic surfactant, nonanol and a water absorbing substance.
It is held on SiO ₂ microporous beads.

Examples of the amino acid-type amphoteric surfactant include alkylpolyaminoethylglycine hydrochloride, sodium laurylaminopropionate, and sodium stearylaminodipropionate.

As the betaine-type amphoteric surfactant, lauryl dimethyl betaine, stearyl dimethyl betaine, lauryl dihydroxyethyl betaine and the like are used.

Examples of the sorbitan nonionic surfactant include sorbitan lauric acid monoester, sorbitan palmitic acid monoester, sorbitan stearic acid monoester, sorbitan stearic acid triester, sorbitan oleic acid monoester, sorbitan oleic acid triester, and ethylene oxide. Those with the addition of are used.

As other surfactant, a quaternary ammonium salt type cationic surfactant or the like may be used in combination.

As the water-absorbing substance, glycerin, ethylene glycol, polyethylene glycol, polyvinyl alcohol,
Polyacrylic acid, polyvinylpyrrolidone, starch, calcium chloride, lithium chloride and the like are used.

As the SiO ₂ -based microporous beads that retain the above-mentioned components, commercially available products such as Microbeads Silica Gel 3A, 4B, 5D manufactured by Fuji Davisson Chemical Co., Ltd., or Saloid 63-978 manufactured by the same company can be used as they are.

The retention of each of the above components on the SiO ₂ -based microporous beads can be achieved by using an amino acid type or betaine type amphoteric surfactant
20% by weight (A), 1-20% by weight (B) of sorbitan type surfactant, 2 [(A) + (B)] / 300% by weight of nonanol, and the balance of water is a deodorant Prepare a solution,
The water absorbing material of the deodorant solution per 100 parts by weight to about 5 to 100 parts by weight of a mixture of mixed solution was prepared and the mixed solution SiO ₂
It is carried out by impregnating the system microporous beads. The impregnation of the mixed solution is performed in an amount up to about 100 parts by weight per 100 parts by weight of SiO ₂ microporous beads.

[Action] and [Effect of the invention] An amino acid type or betaine type amphoteric surfactant, a sorbitan nonionic surfactant, and a deodorant consisting of nonanol are effective in decomposing a malodor, but such deodorant substances are liquid. When used by washing, brushing, or spraying with, there is a limit in effective use as a deodorant.

However, since the deodorant material in the present invention is prepared by adding a water-absorbing substance to the above deodorant and further impregnating the particulate SiO ₂ -based microporous beads to hold the deodorant, the handling becomes extremely easy, and It can be stored in a container and has a wide range of uses. Further, since the water-absorbing substance is added, the evaporation of water is greatly suppressed and the water is retained continuously, so that the deodorant material can exhibit a long-term deodorizing effect.

This deodorant material can be used in the following modes.

(1) Wrap with a breathable sheet such as non-woven fabric, paper, etc. and use for deodorizing refrigerators.

(2) Adhere to cotton, non-woven fabric, etc., wrap it with non-woven fabric, paper, etc., and use it as a pillow cover, futon, sanitary napkin, deodorant filter for air purifier, etc.

(3) Put it in a cigarette ashtray and use it to remove tar and extinguish fire.

〔Example〕

 Next, the present invention will be described with reference to examples.

Example A liquid deliquescent liquid consisting of 15% by weight of alkylpolyaminoethylglycine hydrochloride as an amino acid type amphoteric surfactant, 15% by weight of sorbitan lauric acid monoester as a sorbitan nonionic surfactant, 0.2% by weight of nonanol and 69.8% by weight of water. Prepare the odorant.

In 100 g of a mixed solution prepared by mixing 80 g of the liquid deodorant and 20 g of glycerin, SiO ₂ -based microporous beads (Fuji Davison Chemicals Microbeads silica gel 5D, apparent density 0.4 g / cm ³ , pore volume 1.1 cm ³ / g, average pore diameter 160 Å) 100 g, and after immersion treatment at room temperature for 5 minutes, stirring for 30 minutes, deodorant having an impregnation amount of 100 g of the above mixed solution per 100 g of SiO ₂ microporous beads The material was prepared. Such a deodorant material is a free-flowing granular material.

Next, the deodorizing effect was confirmed using the obtained deodorizing material. That is, 1 g of this deodorant material was adjusted to a temperature of 25 ° C. and a humidity of 65% and put into a Teflon bag made of Teflon having a capacity of 5 and filled with air containing ammonia at an initial concentration of 120 ppm, as shown in FIG. I set it like this. The air containing the ammonia-containing air in the tedra bag 1 is
The sample was circulated at a flow rate of 5 per minute through the Teflon tubes 3 and 3 ', and the time-dependent concentration change of ammonia (residual concentration) was measured on the sample extracted from the cock 4.
The measurement results are shown in the graph of FIG.

As shown in the measurement results of FIG. 2, it is found that the residual ammonia concentration sharply decreases with time and is continuous, and the deodorant effect of the deodorant material of the present invention is strong and persistent. .

In addition, in order to see the action of glycerin in this deodorant material, 10 g of deodorant material ((0.8 parts by weight of liquid deodorant and 0.2 parts by weight of glycerin retained in 1 part by weight of SiO ₂ -based microporous beads)) When the amount of water evaporation when measured by spreading on a watch glass for 6 days under the conditions of 25 ° C. and 65% RH was measured, the amount of water loss was 1.54 g (55%) in 2.8 g.

On the other hand, in the case of 10 g of the deodorant material in which 1 part by weight of the liquid deodorant was held in 1 part by weight of SiO ₂ -based microporous beads, the water loss was 2.88 g (82.3%) out of 3.5 g. .

[Brief description of drawings]

FIG. 1 is a schematic diagram of a deodorant effect testing device using the deodorant material according to the present invention, and FIG. 2 is a graph showing the test results. [Description of symbols] 1 ... Tedra bag 2 ... Air pump 3, 3 '... Teflon tube 4 ... Cock

Claims (1)

[Claims] 1. A deodorant material in which an amino acid type or betaine type amphoteric surfactant, a sorbitan nonionic surfactant, nonanol and a water absorbing substance are held in SiO ₂ microporous beads.