JP5301084B2 - Deodorant composition - Google Patents

Description

  The present invention relates to a deodorant composition.

  There are a variety of odors that occur in daily life, but the sources are drains, toilets, baths, clogs, garbage, dishes, cigarettes, sweat, sebum, etc. Repeated absorption and dissipation through the body, furniture, clothing, etc., mixed odors sometimes drift in the space, causing discomfort. It is most effective to cut off the source of odor, and deodorizers for each source are on the market. Among them, deodorizers that are adsorbed on clothing and fabric products and extinguish the generated odor are widely known, and the frequency of use tends to increase. However, in order to obtain a deodorizing effect against a strong odor, it is necessary to increase the amount of the deodorizing base per unit area.

Patent Document 1 discloses a fragrance composition excellent in fragrance characteristics such as fragrance and residual fragrance and retention effect, obtained by premixing alkyl glyceryl ether and a fragrance, and a cosmetic containing this fragrance composition. , Toiletry products, and fragrances. Patent Documents 2 and 3 disclose the use of a composition containing an alkyl glyceryl ether as a method for sterilizing the surface of an article, and have a deodorizing effect on odors derived from bacteria that are reduced by sterilization. Conceivable. Patent Document 4 discloses a detergent composition having an antibacterial and deodorizing effect containing an anionic surfactant, an antibacterial agent, and alkyl glyceryl ether. Patent Document 5 discloses an antibacterial agent containing zinc and alkyl glyceryl ether. Since zinc also has a deodorizing effect, it is considered that this antibacterial agent also has a deodorizing performance. Patent Document 6 discloses a composition that deodorizes an unpleasant odor caused by microorganisms by combining alkyl glyceryl ether and another deodorizing component. Patent Document 7 discloses a deodorant cosmetic composition containing a bactericidal component, an antiperspirant component, a deodorant component, and the like, and a surfactant such as alkyl glyceryl ether, and the like, and the composition is discharged by a stepping spray. Is disclosed.
JP 2003-238985 A JP 2004-313792 A JP 2004-315537 A JP 2001-131593 A JP-A-2005-170878 US Pat. No. 5,516,510 JP 2001-97838 A

  However, Patent Documents 1 to 3 do not specifically recognize the point of improving the deodorization efficiency when the deodorant is sprayed with a spray or the like. Patent document 4 is a technique of a cleaning agent for hair and body, and does not relate to a deodorant for clothing or the like. Patent Document 5 mainly aims at the synergistic action of antibacterial effect by the combined use of zinc and alkyl glyceryl ether, and spray use itself is not assumed. Patent Document 6 is a technique for dealing with odors generated by bacteria on the skin, and it is not foreseen to increase the deodorization efficiency for clothes. In addition, Patent Document 7 has a problem that the water content is as low as 20% or less, and the deodorizing effect on water-soluble odor is low.

  On the other hand, the method of putting a water-based deodorant into a spray type container and spraying directly on the odor source is a simple treatment method, but the adhesion rate when sprayed using a spray etc. is the composition of the deodorant The deodorization efficiency changes because of the change. Regarding these problems, Patent Documents 1 to 7 do not recognize any particular problem.

  In this way, there are not many known examples of solutions to problems when spraying a water-based deodorant composition onto an object, as well as examples that touch the problems themselves. Development of an agent was desired.

  The present invention provides an aqueous deodorant composition that can reduce sweat and sebum odor of clothing and has high deodorization efficiency because of its high adhesion rate to an object even when sprayed. Let it be an issue.

  The present inventors have found that an aqueous composition containing a specific alkyl glyceryl ether and a specific water-soluble cellulose derivative in a specific range is effective in reducing sweat and sebum odor of clothing and has a high adhesion rate to an object. Therefore, it discovered that it was excellent in deodorizing efficiency.

  That is, the present invention relates to (a) 0.001% by mass or more of glyceryl ether having a hydrocarbon group having 6 to 18 carbon atoms (hereinafter referred to as “component (a)”), and (b) weight average molecular weight of 10,000 to 500. The present invention relates to a deodorant composition containing 0.001% by mass to 0.5% by mass of 10,000 water-soluble cellulose derivatives [hereinafter referred to as component (b)].

  The deodorant composition of the present invention can reduce sweat and sebum odor of clothing by filling a spray-type container and spraying directly on the odor generating source and clothing, and the adhesion rate to the object Because of its high deodorizing efficiency. The deodorant composition of the present invention can be used as a deodorant composition having a high deodorizing effect even if the number of sprays is small.

  The deodorant composition of this invention contains the glyceryl ether which has a C6-C18 hydrocarbon group as (a) component.

  The hydrocarbon group having 6 to 18 carbon atoms in the component (a) may be linear, branched or cyclic, and may be saturated or unsaturated. Specific examples of the hydrocarbon group include hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, 2- Methylpentyl, 2-methylhexyl, 2-methylpentyl, 2-methyloctyl, 2-methylnonyl, 2-methyldecyl, 2-methylundecyl, 2-methyldodecyl, 2-methyltridecyl Group, 2-methyltetradecyl group, isostearyl group, 2-ethylbutyl group, 2-ethylpentyl group, 2-ethylhexyl group, 2-ethylheptyl group, 2-ethyloctyl group, 2-ethylnonyl group, 2-ethyldecyl group 2-ethylundecyl group, 2-ethyldodecyl group, 2-butylhexyl group, 2- Tilheptyl, cyclohexyl, cyclopentyl, cyclooctyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, undecenyl, dodecenyl, tridecenyl, tetradecenyl, pentadecenyl, hexadecenyl, heptadecenyl, An octadecenyl group etc. are mentioned. The component (a) is preferably in a liquid state under the conditions of 0 to 50 ° C. (operating temperature range) from the viewpoint of storage stability. Two or more glyceryl ethers may be mixed and used. Component (a) is preferably a monoether to which one hydrocarbon group is bonded and / or a diether to which two hydrocarbon groups are bonded, and particularly preferably a monoether.

  In the deodorant composition of the present invention, the component (a) is 0.001% by mass or more, preferably 0.002 to 5% by mass, more preferably 0.005 to 3% by mass, and particularly preferably 0.01 to 2% by mass is contained.

  The water-soluble cellulose derivative of the component (b) used in the present invention has a weight average molecular weight of 10,000 to 5,000,000, and the weight average molecular weight is 10,000 or more from the viewpoint of adhesion to an object, and is 50,000 or more. Is preferable, and 100,000 or more is particularly preferable. Further, from the viewpoint of the mechanical durability of the spray, the weight average molecular weight is 5 million or less, preferably 3 million or less, and particularly preferably 2 million or less.

  Examples of the water-soluble cellulose derivative include methyl cellulose, ethyl cellulose, carboxymethyl cellulose, carboxyethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl ethyl cellulose, and cationized cellulose. The weight average molecular weight is preferably 20,000 to 3,000,000, particularly preferably 50,000 to 2,000,000. The weight average molecular weight of these water-soluble cellulose derivatives is measured by gel permeation chromatography using polyethylene glycol as a standard substance. The water-soluble cellulose derivative in the present invention is pulverized to an average particle size of 100 μm or less, then an amount corresponding to 1% by mass is added to cold water of 20 ° C. or less, and the powder is dispersed in cold water by stirring with a stirrer or blade. Then, the mixture is gradually heated to about 80 ° C. while continuing the stirring operation, and the mixture is further stirred for about 2 hours while maintaining the temperature.

  In the deodorant composition of the present invention, the component (b) is 0.001% by mass to 0.5% by mass, preferably 0.002 to 0.4% by mass, more preferably 0.003 to 0.3% by mass. %, More preferably 0.005 to 0.2% by mass.

  In the present invention, the combined use of the component (a) and the component (b) improves the adhesion rate to the object and exhibits excellent deodorizing performance. Preferably, the mass ratio of component (a) / component (b) is 25/75 to 80/20, and the adhesion rate to the object is good in this range.

  The total content of the component (a) and the component (b) in the deodorant composition of the present invention is 0.002% by mass or more, preferably 0, from the viewpoint of deodorization performance and ease of spraying. 0.002 to 1% by mass, more preferably 0.01 to 0.5% by mass, and particularly preferably 0.05 to 0.3% by mass.

  The deodorant composition of the present invention further improves the adhesion rate by including the water-soluble salt (c). The water-soluble salt in the present invention is a compound having a solubility in water of 1% or more. Preferred are compounds that ionically dissociate without forming micelles in water, and more preferred are water-soluble salts having a molecular weight of 500 or less that do not form hydrogen ions or hydroxide ions when dissolved in water. For example, sodium chloride, potassium chloride, calcium chloride, magnesium chloride, lithium chloride, sodium sulfate, potassium sulfate, lithium sulfate, sodium carbonate, potassium carbonate, potassium phosphate, sodium phosphate, sodium sulfite, potassium sulfite, sodium citrate, Examples include potassium citrate, sodium acetate, potassium acetate, sodium lactate, and sodium gluconate. The content of the component (c) in the deodorant composition of the present invention is preferably 0.1 to 5% by mass, more preferably 0.2 to 2% by mass in the composition.

  The pH of the deodorant composition of the present invention is preferably 6 to 9.5. If pH is this range, the effect with respect to sweat and sebum odor is excellent, and the effect with respect to amines etc. is excellent. From the viewpoints of sweat / sebum odor, cooking odor, tobacco odor, and reduced skin irritation, the pH is preferably 6.5 to 9, and more preferably 6.8 to 8.5.

  The pH of the deodorant composition of the present invention can be adjusted by adding an acid such as hydrochloric acid or an alkali such as sodium hydroxide.

  The deodorant composition of the present invention further includes polyhydric alcohol, other deodorants, and various surfactants, solvents, solubilizers, oil agents, gelling agents, pH adjusters that are generally added, Other components such as antioxidants, preservatives, bactericides / antibacterial agents, fragrances, pigments, and UV absorbers can be added.

  The form of the deodorant composition of the present invention is preferably a liquid aqueous composition containing water, and in particular, used as a spray for deodorizing textiles such as clothing, spaces, human bodies (body, hair), pets, etc. Can do. A spray-type deodorant obtained by filling the deodorant composition of the present invention in a spray-type container (that is, a container having a spraying means) can be obtained. The deodorant composition of the present invention is filled in a mist type spray container, particularly as an aqueous deodorant, and the volume average particle size at the time of spraying is adjusted to 1 μm to 500 μm, and the spray amount per time is adjusted to 0.1 to 1 ml. Is preferred.

  The deodorant composition of the present invention is excellent in deodorizing efficiency because it can deodorize sweat and other odors on clothing and fabric products and has a high adhesion rate to clothing and fabric products. Therefore, the deodorant composition of the present invention can be used as a deodorant composition having a high deodorizing effect even when the number of sprays is small.

Examples 1-5 and Comparative Examples 1-4
<Preparation of deodorant composition>
Deodorant compositions having the formulation shown in Table 2 were prepared. In addition, the fragrance | flavor composition of Table 1 was used as a fragrance | flavor, and the deodorizer composition was adjusted to pH (25 degreeC) 7.8 with the pH adjuster (1/10 normal sodium hydroxide aqueous solution). The components of the symbols in Table 2 are as follows.

(A) component a-1: n-octyl glyceryl ether a-2: 2-ethylhexyl glyceryl ether a-3: isodecyl glyceryl ether

(B) Component-b-1: Sodium carboxymethylcellulose (CMC Daicel 1350, weight average molecular weight 140,000)
B-2: Cationized cellulose (polymer JR-30M, weight average molecular weight 700,000)
B-3: hydroxyethyl cellulose (HEC Daicel SE-850, weight average molecular weight 1,500,000)

(C) component * c-1: sodium dipotassium phosphate * c-2: tripotassium citrate * c-3: sodium carbonate

B′-1: methylcellulose (weight average molecular weight 5000)
-Nonionic surfactant: Polyoxyethylene lauryl ether (Emulgen 105, manufactured by Kao Corporation)
-APAO: Lauramidopropyldimethylamine oxide

<Evaluation of deodorizing effect>
(1) Preparation of deodorant object [Model sweat odor test cloth]
Spray a cotton knitted fabric (6cm x 6cm) with a 10ppm aqueous solution of isovaleric acid as an odor component four times using a spray vial (Marem Co., No. 6) (about 0.16g) and let it dry for 30 minutes. After that, a test piece was obtained.

(2) Deodorization method The test piece obtained by the above method was sprayed 6 times using a spray vial (Marem Co., No. 6) with a deodorant composition having the formulation shown in Table 2 (total of about 0.24 g) After drying for 1 hour, the odor was evaluated in an environment of 20 ° C. and 65% RH.

(3) Deodorization performance evaluation Ten skilled panelists of 5 men and 5 women in their 30s sniff the odor of the test piece, and evaluated by the following 6-step odor intensity display method. The average value was obtained.
0: Odorless 1: Strength of feeling something slightly but not knowing what odor (detection threshold level)
2: Know what odor, easily feel weak odor (recognition threshold level)
3: Obvious odor 4: Strong odor 5: Unacceptably strong odor Average value 0 to less than 1, ◎, average value 1 to less than 2 ○, average value 2 to less than 3 △, average value 3 to 5 The following was evaluated as x. The evaluation is preferably ◎ or ○.

<Evaluation of adhesion rate>
Cotton knitted cloth (Dyeing Materials Co., Ltd. Tanigami Shoten) was cut into 50 cm × 50 cm pieces of cloth and hung vertically using a hanger or the like. Place the composition of Table 2 in a container, and use the Yoshino M3 trigger to spray the spray once in the horizontal direction with the tip of the trigger positioned 15 cm away from the surface of the fabric toward the center of the fabric. The mass and the discharge amount were measured, and the adhesion rate (%) was calculated by the following formula. This operation was repeated 5 times with the cloth changed, and the adhesion rate (%) (average value) per spray was determined and shown in Table 2.

Adhesion rate (%) = [(F ₁ −F ₀ ) / (W ₀ −W ₁ )] × 100
F ₀ : Mass of the cloth before spraying (g)
F ₁ : Mass of the cloth after spraying (g)
W ₀ : Total mass (g) of container before spraying and deodorant composition
W ₁ : Total mass (g) of sprayed container and deodorant composition

  From Table 2, the deodorant composition of the comparative example has a low deodorizing performance against sweat odor and a low adhesion rate to the cloth, whereas the deodorant composition of the example has a deodorizing performance against sweat odor, High adhesion to fabric.

Claims (7)

(A) 0.001% by mass or more of glyceryl ether having a hydrocarbon group having 6 to 18 carbon atoms, (b) 0.001% by mass of a water-soluble cellulose derivative having a weight average molecular weight of 100,000 to 3 million. A deodorant composition for textiles containing 0.5% by mass and (c) 0.1 to 5% by mass of a water-soluble salt ,
The total content of the component (a) and the component (b) is 0.002 to 1% by mass,
The mass ratio of (a) component / (b) component is 25 / 75-80 / 20,
Deodorant composition for textile products . (C) The water-soluble salt is a water-soluble salt selected from sodium carbonate, potassium carbonate, potassium phosphate, sodium phosphate, sodium potassium phosphate, sodium citrate, and potassium citrate . Deodorant composition for textile products . The deodorant composition for textiles according to claim 1 or 2, wherein the pH is 6 to 9.5. (A) is a water-soluble cellulose derivative selected from methylcellulose, ethylcellulose, carboxymethylcellulose, carboxyethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxyethylmethylcellulose, hydroxypropylethylcellulose, and cationized cellulose . The deodorant composition for textiles according to any one of the above. The deodorant composition for textiles according to any one of claims 1 to 4, which is a liquid aqueous composition containing water. The spray-type deodorant for textiles formed by filling the deodorant composition for textiles of any one of Claims 1-5 in the container which comprises a spraying means. The deodorizing method of a textile product which sprays the deodorant composition for textiles of any one of Claims 1-5 directly on a textile product.