JP2016204263A - Deodorant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deodorant having an excellent deodorant effect on the body odor generated due to various causes such as the odor of each part of the body generated from sweating or the like and the odor generated from the body trunk, and excellent stability with time while further having moisturizing effect.SOLUTION: There is provided a deodorant which contains hydrolysis sericin and more preferably contains a bactericide. In addition, the bactericide preferably is isopropylmethylphenol.SELECTED DRAWING: None

Description

  The present invention relates to a deodorant agent that effectively suppresses body odor.

In recent years, people's interest in body odor has increased. Body odors can be broadly classified into “smell of each part of the body caused by perspiration” such as scalp odor, habit odor and foot odor, and “smell emitted from the trunk”.
The former “odor of body parts emitted by sweat”, for example, scalp odor, odor, foot odor, etc. are produced by “sweat” that is the source of odor and “skin resident bacteria” that produce odor. It is known that the sweat secreted from the sweat glands is converted to an odor substance by being assimilated by the skin resident bacteria. As odorous substances, organic acids such as acetic acid and isovaleric acid, and nitrogen compounds such as ammonia and butylamine are known. In recent years, it has been found that volatile steroids, which are degradation products of steroid derivatives secreted from the body, are also main odor substances.
In the latter “odor generated from the trunk”, for example, 2-nonenal, which is an unsaturated aldehyde, is known as an aging odor recognized after middle-aged and older. Furthermore, the male odor recognized by men in their 30s and 40s can be mentioned, and it is known that diketones such as 2,3-butanedione (also referred to as diacetyl) are the main odor substances.

  Techniques to prevent such body odor include antiperspirants that suppress perspiration that is the source of odors, bactericides that suppress the growth of resident skin-producing bacteria that produce odors, and chemically neutralize the generated odorous substances. Alternatively, a method using a deodorant agent that is eliminated or reduced by physical adsorption, a masking agent that masks the body odor with another scent, or the like is known.

  For example, Patent Document 1 contains decalinium chloride and antiperspirants such as aluminum chloride, bactericides such as benzalkonium chloride, and body odor prevention agents such as deodorizers such as zinc oxide. A body odor and deodorant cosmetic that has an excellent deodorizing and deodorizing effect on body odor due to, etc., and that can maintain the effect for a long time is disclosed. However, it has an excellent deodorant effect against body odor due to sweat, etc., but against the odor emitted from the trunk, the effect of masking the unsaturated aldehyde generated, the oxidation suppression effect by the antioxidant, the antibacterial agent The effect of inhibiting the growth of skin resident bacteria is not sufficient, and an excellent deodorant effect cannot be expected.

  Patent Document 2 discloses (A) at least one antioxidant selected from grape seed extract, Bergenia ligurada root extract and cranberry extract, (B) fungicide, and (C) antibacterial agent. A weight ratio (A / B) between the extract content of the component (A) and the content of the component (B) is set to 0.05 to 70. It has excellent deodorizing and deodorizing effects against bitter odors, and has an excellent deodorant effect that can suppress the growth of body odor bacteria over a long period of time. The durability of this excellent deodorant effect is improved, and the feeling of use is excellent. A deodorant composition with improved storage stability is disclosed. However, although it has an excellent deodorant effect against the rough odor of the trunk (odor generated from the trunk), it does not mention a sufficient deodorant effect against body odor due to sweat or the like.

  Patent Document 3 discloses an aging odor containing an antibacterial agent that suppresses the generation of unsaturated aldehyde, which is a main cause of aging odor, by using an antibacterial agent and suppresses the generation of an aging odor. An inhibitory composition is disclosed. However, although it has an excellent deodorant effect against an aging odor, the deodorant effect against body odor due to sweat or the like cannot be obtained satisfactorily.

  Thus, under the present circumstances, development of a deodorant agent having a sufficient deodorant effect against “a odor of each part of the body caused by sweat” and “a odor emitted from the trunk” is desired.

JP 2005-350357 A JP 2011-153128 A Japanese Patent Laid-Open No. 11-286423

  The present invention has been made in view of such a current situation, and provides a deodorant agent which has an excellent deodorant effect against body odor caused by various causes, has a moisturizing effect, and is excellent in stability over time. For the purpose.

  The present inventors have found that hydrolyzed sericin has a deodorant effect on “the odor of each part of the body emitted by sweat” and “the odor emitted from the trunk” and has a moisturizing effect. It was found that the stability over time was excellent. Furthermore, it has been found that by using a bactericide and an antioxidant in combination, the deodorant effect is synergistically improved, and the present invention has been completed.

  That is, the present invention is a deodorant agent containing hydrolyzed sericin.

Furthermore, it is preferable to contain a disinfectant.
The fungicide is preferably isopropylmethylphenol.
Furthermore, it is preferable to contain an antioxidant.

  According to the present invention, it has an excellent deodorant effect and a moisturizing effect against body odors generated due to various causes such as “smell of each part of the body caused by sweat” and “smell emitted from the trunk”. It is possible to provide a deodorant agent having excellent temporal stability.

  The deodorant agent of the present invention comprises hydrolyzed sericin.

  Hydrolyzed sericin used in the present invention has a high proportion of amino acids having hydroxyl groups, such as serine and threonine, which are highly hydrophilic, and has high hydrophilicity, thereby incorporating water-soluble odorous substances, and further reaction activities such as glutamic acid and aspartic acid. It is presumed that an excellent deodorant effect can be obtained by a chemical reaction with an odorous substance because it contains an acidic amino acid rich in.

  Hydrolyzed sericin has an amino acid composition similar to that of natural moisturizing factor, and has a high proportion of amino acids having a hydroxyl group and a carboxyl group, and thus has high hydrophilicity and adhesion to the skin. While enhancing, it has a high effect of improving the skin environment (moisture content) of the stratum corneum. Therefore, by adjusting the skin moisture balance by normalizing skin turnover and NMF production, not only the moisturizing action can be enhanced, but also excessive sebum secretion can be suppressed.

  Hydrolyzed sericin is easily available as a hydrolyzate from silkworms and raw silk. That is, the hydrolyzed sericin used in the present invention is prepared by using raw materials such as silkworms and raw silk as an acid hydrolysis method using, for example, hydrochloric acid, sulfuric acid or phosphoric acid, and alkaline hydrolysis using sodium hydroxide or sodium carbonate. The sericin in the raw material can be partially hydrolyzed and eluted by a decomposition method or an enzyme decomposition method using a microorganism or plant-derived protease. By purifying this according to a known protein separation and purification technique, an aqueous solution of highly pure sericin hydrolyzate can be obtained. Further, it may be dried by subjecting it to a treatment such as hot air drying, reduced pressure drying or freeze drying.

  Hydrolyzed sericin preferably contains 20 to 40 mol% of serine as an amino acid composition. When the serine content is 20 mol% or more, various functions and effects of sericin, particularly a moisturizing function, can be sufficiently obtained, and excessive sebum secretion can be suppressed. Furthermore, it is presumed that a deodorant effect can be obtained by incorporating a water-soluble odor substance. The amino acid composition can be measured and determined by a post-column derivatization-fluorescence detection method using a high performance liquid chromatograph amino acid analysis system LC-10 (manufactured by Shimadzu Corporation).

  The weight average molecular weight of hydrolyzed sericin is preferably 1,000 to 100,000, and more preferably 5,000 to 50,000. When the weight average molecular weight is 1,000 or more, the proportion of constituent amino acids is increased, and it is estimated that the deodorant effect due to incorporation of water-soluble odorous substances and chemical reactions due to hydroxy groups and carboxyl groups is improved. Furthermore, a sufficient moisturizing effect can be obtained, and excessive sebum secretion can be suppressed. In addition, since it can be easily dissolved in water, it can be blended into various dosage forms such as for skin application or cleaning of the trunk or the like, and for fiber treatment. In addition, since the water solubility does not decrease when the weight average molecular weight is 100,000 or less, precipitation of hydrolyzed sericin over time can be prevented, and stability over time of the deodorant agent can be maintained. The weight average molecular weight can be measured and determined by GPC analysis using a high performance liquid chromatograph CLASS-LC10 (manufactured by Shimadzu Corporation).

  The content of hydrolyzed sericin is not particularly limited and can be adjusted according to the dosage form and purpose of the deodorant agent, but is preferably 0.001 to 2.0% by mass with respect to the entire deodorant agent, It is more preferable that it is 0.01-1.0 mass% from the point of an effect. When the content is 0.001% by mass or more, the deodorant effect is sufficiently exhibited and the moisturizing effect is obtained. By being 2.0 mass% or less, the deodorant agent has excellent temporal stability.

  The deodorant agent of the present invention preferably contains a bactericidal agent. By using a bactericidal agent in combination, the deodorant effect is synergistically improved by inhibiting the growth of skin resident bacteria.

  Examples of the disinfectant used in the present invention include isopropylmethylphenol, triclosan, halocarban, benzalkonium chloride and the like. In particular, it is effective against a wide range of fungi and is not only excellent in sterilization and disinfection, but also has been used as a cosmetic raw material and has been confirmed to be safe for the skin. Phenol is preferred. As isopropylmethylphenol, those commercially available for pharmaceuticals or cosmetics can be used. As a commercial item, a brand name "Biosol (trademark)" (made by Osaka Chemical Industry Co., Ltd.) etc. can be mentioned. In addition, these bactericides may be used independently and may be used in combination of 2 or more type.

  The content of the bactericidal agent is preferably 0.01 to 2.0% by mass with respect to the entire deodorant agent, and 0.02 to 1.0% by mass from the viewpoint of inhibiting the growth of skin resident bacteria. Is more preferable. When the content is 0.01% by mass or more, an action of suppressing the growth of the skin resident bacteria that produce body odor is obtained, and a sufficient deodorant effect is obtained. By being 2.0 mass% or less, not only the deodorant effect is acquired without giving irritation | stimulation to skin, but the temporal stability of a deodorant agent can be maintained.

  The deodorant agent of the present invention preferably contains an antioxidant. By using an antioxidant in combination, the deodorant effect is synergistically improved by the action of inhibiting the oxidation of odorous substances.

  Antioxidants used in the present invention include, for example, oyster tannins, sage leaf extract, eucalyptus leaf extract, saxifrage extract, hop extract, hypericum extract, rosemary extract, perennial extract, licorice extract, clara extract, perilla extract And plant extracts such as Among these, oyster tannin, sage leaf extract, and eucalyptus leaf extract are preferable because a deodorant effect due to a synergistic effect of antioxidant activity can be obtained. In addition, these antioxidants may be used independently and may be used in combination of 2 or more type.

  As the antioxidant, those commercially available for cosmetics can be used. Commercially available products include, for example, trade name “Pancil COS-20” (Release Chemical Industries, Ltd.) as oyster tannin, trade name “Falcolex Sage B” (produced by Ichimaru Falcos), Eucalyptus as sage leaf extract, for example. Examples of the leaf extract include “Falcolex Eucalyptus B” (manufactured by Ichimaru Falcos Co., Ltd.) and the like.

  The content of the antioxidant is preferably 0.0001 to 1.0% by mass with respect to the entire deodorant agent. From the viewpoint of the deodorant effect due to the oxidation inhibiting action of odorous substances causing body odor, 0.0001 More preferably, it is -0.1 mass%. When the content is 0.0001% by mass or more, a synergistic effect with the deodorant effect of hydrolyzed sericin is obtained. By being 1.0 mass% or less, the temporal stability of a deodorant agent can be maintained.

  The deodorant agent of the present invention can contain components other than those described above as necessary within the range not impairing the effects of the present invention. Specifically, moisturizers, ultraviolet absorbers, emulsifiers, thickeners, surfactants, chelating agents, oily ingredients, alcohols, coloring materials, powder ingredients, vitamins, anti-inflammatory agents, pH adjusters, preservatives Etc.

  The deodorant agent of the present invention can be used as a preparation for pharmaceuticals, quasi drugs, various cosmetics, etc. by blending various base materials according to the form, dosage form, and application. Here, the form is not particularly limited as long as the effect of the present invention is not impaired. For example, spray, roll-on, stick, body soap, lotion, gel, cream, sheet, emulsion, mousse, ointment, etc. can be selected as appropriate. it can. Moreover, the deodorant agent of this invention can be manufactured by a conventional method.

  The deodorant agent of the present invention can also be used for fiber treatment. In this case, if applied to fibers, such as a fiber treatment agent used when processing a textile product, a deodorant used in textile products such as clothing and bedding, a laundry finish agent, etc. It can be suitably used as a textile product treating agent or the like. The form can be appropriately selected from, for example, spray, roll-on, stick, gel and the like.

  When the deodorant agent is used as a fiber treatment agent during processing, for example, in order to treat a fiber material with the deodorant agent of the present invention, the fiber treatment agent is kneaded as it is or with a fiber raw material by a known method, or A method of spraying, impregnating, and coating a necessary amount of the fiber treatment liquid on the fiber surface can be employed. When processing the fiber material, known components blended in the impregnation liquid and coating agent may be added as necessary. For example, vinyl acetate, acrylic, urethane, silicone binder resins and crosslinking agents Etc. can also be used. Examples of the fiber material include fibrils, yarns, piles, cotton-like materials, woven fabrics, knitted fabrics, non-woven fabrics, and flocked fabrics.

  In addition, when the deodorant agent of the present invention is used as a textile product treatment agent such as a deodorant for clothing, a deodorant for bedding, and a laundry finish, it adheres to the fiber surface by spraying it on the textile product. The method is not particularly limited, and processing can be performed with a method and conditions suitable for each object. In this case, you may mix | blend suitably the well-known component mix | blended with a deodorizer and a laundry finishing agent as needed, for example, binder resin and surfactant, such as a vinyl acetate, an acryl type, a urethane type, a silicone type, Alcohols, coloring materials and the like can also be used.

  Examples of textile products include skin shirts and underwear worn daily, as well as clothing such as supporters, socks, stockings, and gloves wrapped around the limbs. Furthermore, other wood products, paper products, and the like are also included in the fiber product referred to in the present invention. These fiber products are made of natural fibers such as plant fibers and animal fibers, chemical fibers such as regenerated fibers, semi-synthetic fibers, synthetic fibers, etc., or blends of these natural fibers with chemical fibers, union products, union products, etc. An arbitrary one having the required fiber characteristics according to the application is appropriately selected.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited to the following Example.

[Examples 1-17, Comparative Examples 1-10]
A deodorant lotion, a deodorant sheet, and a deodorant body soap were prepared according to the following method based on the compositions described in Tables 1 to 3, and the deodorant effect was evaluated for each of the obtained formulations.
[Formulation preparation method]
<Deodorant Lotion>
Each component was mixed and stirred to prepare.
<Deodorant sheet>
Each component was mixed and stirred, and 10 g of the prepared composition liquid was impregnated with a nonwoven fabric sheet (spunlace nonwoven fabric, rayon 100%, basis weight 60 g / m ² , dimensions: 20 × 25 cm).
<Deodorant body soap>
Water and alkali were added to the heated fatty acid and glycerin, stirred and cooled, and then the remaining components were added and stirred to prepare.

[Evaluation method]
Twenty healthy 30 to 70 test subjects who were judged to have a strong body odor were used and evaluated as follows. In the case of deodorant lotion, once a day, an appropriate amount was applied to the whole body mainly on the scalp, heels, trunk, and soles of the feet. In the case of a deodorant sheet, the whole body was wiped once a day with one or two sheets centering on the heel, trunk, and sole of the foot. In the case of a deodorant body soap, about 10 g of the preparation was bubbled once a day, and the whole body was washed mainly on the heel, trunk, and sole of the foot.
After use, test wigs (deodorant lotion only), test skin shirts and test socks prepared in advance are worn for 12 hours, and each test product is collected after 12 hours. A) For test The wig's scalp contact area, b) around the neck of the test skin shirt, c) the buttocks, d) around the chest, and e) the back, f) about the odor adhering to the test socks. Sensory evaluation was performed based on the following evaluation criteria, and the average odor of each test product was determined. And the average score of 20 odor evaluation of each test article was calculated | required, and the following effect criteria evaluated. The results are listed in Tables 1-3.
The subjects prohibited the use of other deodorant agents from 3 days before the test, and allowed the use of unscented body soap during bathing.
[Odor evaluation criteria]
4 points: no odor 3 points: almost no odor 2 points: slightly odor 1 point: strong odor
[Deodorant effect standard]
<Deodorant effect on scalp odor>
A: The average score of odor evaluation of 20 test products a) is 3.5 points or more. ○: The average score of odor evaluation of 20 test products a) is 2.0 points or more and less than 3.5. The average score of odor evaluation of 20 test products a) is 1.0 point or more and less than 2.0 points ×: The average score of odor evaluation of 20 test products a) is less than 1.0 point < Deodorant effect>
◎: The average score of odor evaluation of c) of 20 test products is 3.5 points or more ○: The average score of odor evaluation of 20 test products c) is 2.0 points or more and less than 3.5 △: The average score of odor evaluation of 20 test products c) is 1.0 point or more and less than 2.0 ×: The average score of c) odor evaluation of 20 test products is less than 1.0 point <body trunk Deodorant effect for more odors>
◎: The average score of odor evaluation of b) d) e) of 20 test products is 3.5 points or more ○: The average score of odor evaluation of b) d) e) of 20 test products is 2.0 points or more Less than 3.5 Δ: The average score of b) d) e) odor evaluation of 20 test products is 1.0 or more and less than 2.0 ×: Odor evaluation of b) d) e) of 20 test products <1.0 points <deodorant effect on foot odor>
◎: The average score of odor evaluation of 20 test items f) is 3.5 points or more ○: The average score of f) odor evaluation of 20 test products is 2.0 points or more and less than 3.5 △: The average score of f) odor evaluation of 20 test products is 1.0 point or more and less than 2.0 ×: The average score of f) odor evaluation of 20 test products is less than 1.0 point

[Moisturizing effect]
Evaluation was performed on 10 healthy subjects in their 30s to 70s using the test as follows. In the case of deodorant lotion, an appropriate amount was applied to the whole body once a day. In the case of a deodorant sheet, the whole body was wiped once or twice a day. In the case of a deodorant body soap, about 10 g of the preparation was bubbled once a day to wash the whole body. After each use of each preparation was continued for 7 days, the amount of stratum corneum at the measurement site was measured. The horny water content was measured as a conductance value using SKICON-200 (manufactured by IBI S Co., Ltd.) in a constant temperature and humidity room at a room temperature of 23 ° C. and a humidity of 55%. In addition, in order to avoid the direct influence of the coated material, the measurement site was washed with soap at least 15 minutes before the measurement. Arbitrary 10 places were measured and the average value was calculated. From the average value of the amount of stratum corneum before and after the use of the deodorant agent, the increase rate of the conductance value was calculated from the following formula, and the moisturizing effect was evaluated according to the following evaluation criteria.
Increase rate of conductance value (%)
= (Water content after use-water content before use) / (water content before use) x 100
[Evaluation criteria]
◎: Average increase rate of conductance value of 10 subjects is 50% or more ○: Average increase rate of conductance value of 10 subjects is 30% or more and less than 50% △: Average increase rate of conductance value of 10 subjects 10% or more and less than 30% x: Average increase rate of conductance value of 10 subjects is less than 10%

[Stability over time]
50 g of each preparation of deodorant lotion and deodorant body soap was filled in a transparent glass bottle, stored at 40 ° C. for 3 months, and the appearance after storage was visually observed. In the case of a deodorant sheet, 14 sheets sealed in an aluminum pillow bag were stored at 40 ° C. for 3 months. After storage, the appearance of the squeezed liquid of the impregnating liquid was visually observed. Stability over time was evaluated according to the following evaluation criteria.
In addition, at the same time when the stability evaluation of each preparation was started, a product stored for the same period at 25 ° C. under light shielding was used as a standard product for appearance observation.
[Evaluation criteria]
◎: No change in coloration / precipitation (origin) compared to the standard product ○: No precipitation (origin) is observed compared to the standard product, but very slight coloration is observed, but quality On top, there is no problem. △: Compared with the standard product, a slight coloration is observed, or a change such as a turbid appearance is observed. ×: Clear coloration or precipitation (ori) is observed.

  The hydrolyzed sericin contained in the deodorant agent described in the examples was prepared by the method described later.

[Method for producing hydrolyzed sericin]
A silk fabric made of raw silk was treated with a 0.2 mass% sodium carbonate aqueous solution (pH 11-12) at 95 ° C for 2 hours to extract hydrolyzed sericin. The obtained extract was filtered through a filter having an average pore size of 0.2 μm to remove aggregates, and then the filtrate was desalted with a dialysis membrane to obtain a sericin hydrolyzate extract having a concentration of 0.2% by mass. The extract was concentrated to about 2% by mass using an evaporator and then freeze-dried to obtain hydrolyzed sericin powder. This hydrolyzed sericin had a molecular weight distribution of 3,000 to 70,000, a weight average molecular weight of 30,000, and contained 35 mol% of serine as an amino acid composition.

In addition, what was marketed as an other component for pharmaceuticals, a quasi-drug, or various cosmetics was used.
・ Isopropylmethylphenol: Trade name “Biosol (registered trademark)” (bactericide, manufactured by Osaka Kasei Co., Ltd.)
・ Benzalkonium chloride: Trade name “Trizon (registered trademark) disinfectant 10%” (bactericidal agent, manufactured by Iwaki Pharmaceutical Co., Ltd.)
・ Kakitannin: Trade name “Pancil COS-20” (Antioxidant, manufactured by Release Science Industrial Co., Ltd.)
-Sage leaf extract: Trade name "Falcolex Sage B" (Antioxidant, manufactured by Ichimaru Falcos, solid content concentration of sage extract: 1.0%)
Eucalyptus leaf extract: Trade name “Falcolex Eucalyptus B” (Antioxidant, manufactured by Ichimaru Falcos, solid content concentration of eucalyptus extract: 0.6%)

  The deodorant lotions, deodorant sheets, and deodorant body soaps of Examples 1 to 17 were compared with Comparative Examples 1 to 10, such as “scalp odor, odor, foot odor, etc.” It was excellent in deodorant effect against “odor generated from the trunk”. Furthermore, it was excellent in the moisturizing effect and also stable over time.

[Examples 18 to 23, Comparative Examples 11 to 12]
The fiber treatment agent used at the time of textile product processing by the formulation shown in Table 4 and the deodorant agent for fiber product treatment were prepared according to the method described below, and the deodorant effect was evaluated.

[Fiber treatment agent used during fiber product processing] (Examples 18 to 20, Comparative Example 11)
A cotton knitted fabric was immersed in a fiber processing deodorant prepared based on the composition shown in Table 4, dehydrated with a roller, and dried to prepare deodorant fibers. This was used to create a test skin shirt and test socks.

[Fiber product treating agent] (Examples 21 to 23, Comparative Example 12)
A textile treatment agent prepared based on the composition shown in Table 4 is put in a container with a pump dispenser and sprayed about 10 pushes on both sides of a commercially available skin shirt (cotton fiber: 100 g) and socks (cotton fiber: 60 g) ( Preparation 1g) and air-dried to prepare a test skin shirt and test socks.

[Evaluation method]
Twenty healthy subjects in their 30s to 70s who were judged to have strong body odors were allowed to wear test skin shirts and test socks for 12 hours. After 12 hours, collect each test product, g) around the neck of the test skin shirt, h) the hips, i) around the chest, and j) the back, k) the odor attached to each of the test socks. Sensory evaluation was performed based on the following evaluation criteria by five panelists, and the average odor of each test product was obtained. And the average score of 20 odor evaluation of each test article was calculated | required, and the following effect criteria evaluated. The results are listed in Table 4.
The subjects prohibited the use of other deodorant agents from 3 days before the test, and allowed the use of unscented body soap during bathing.
[Evaluation criteria]
4 points: no odor 3 points: almost no odor 2 points: slightly odor 1 point: strong odor
[Deodorant effect standard]
<Deodorant effect against odor>
◎: The average score of odor evaluation of 20 test items h) is 3.5 points or more ○: The average score of 20) odor evaluation of 20 test products is 2.0 points or more and less than 3.5 △: The average score of odor evaluation of 20 test products h) is 1.0 point or more and less than 2.0 ×: The average score of odor evaluation of 20 test products h) is less than 1.0 point Deodorant effect for more odors>
◎: The average score of odor evaluation of g) i) j) of 20 test products is 3.5 points or more ○: The average score of odor evaluation of g) i) j) of 20 test products is 2.0 points or more Less than 3.5 Δ: The average score of g) i) j) odor evaluation of 20 test products is 1.0 or more and less than 2.0 points ×: 20 test products g) i) odor evaluation of j) <1.0 points <deodorant effect on foot odor>
◎: The average score of odor evaluation of 20 test products k) is 3.5 or more ○: The average score of odor evaluation of 20 test products k) is 2.0 or more and less than 3.5 △: Test 20) k) average odor evaluation score of 1.0 or more and less than 2.0 points ×: 20 test product k) average odor evaluation score of less than 1.0

  In the group in which the fiber treatment deodorant agent of Examples 18 to 23 was adhered to the fiber surface, compared to the fiber treatment deodorant agent of Comparative Examples 11 to 12, the body emitted by sweat etc. The deodorant effect was excellent with respect to “the odor of each part” and “the odor emitted from the trunk”.

Claims (4)

  A deodorant agent comprising hydrolyzed sericin.   The deodorant agent according to claim 1, further comprising a bactericidal agent.   The deodorant agent according to claim 2, wherein the bactericide is isopropylmethylphenol.   Furthermore, an antioxidant is contained, The deodorant agent of any one of Claims 1-3 characterized by the above-mentioned.