JP2015012918A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article which prevents an excessive stimulus from being imparted to a wearer by a refrigerant and can suppress discomfort caused by damp and stickiness or the like more reliably.SOLUTION: An absorbent article 1 includes a refrigerant and 2-methyl-4-phenyl-1-pentanol. The "refrigerant" to be included in the absorbent article means a substance which stimulates a thermal receptor on a skin or a mucosal surface of a wearer of the absorbent article to transmit a refreshing feeling to the wearer. Specifically, a chemical compound known as a "a substance producing a cold sensation" is listed, for example, cyclohexyl derivatives, cyclohexanol derivatives, carboxamides (menthane carboxamide), and tertiary or secondary aliphatic carboxamide, or the like.

Description

  The present invention relates to absorbent articles such as sanitary napkins and panty liners.

  Wearing absorbent articles such as sanitary napkins, panty liners, incontinence pads, and diapers may cause skin irritation due to stuffiness. Therefore, conventionally, an absorbent article containing an emollient or the like (for example, Patent Document 1) or a refreshing agent having a cooling sensation effect such as lactic acid menthyl, in order to impart a skin care effect and suppress the occurrence of rash. An absorptive article (Patent Document 2) and the like that contain and impart a refreshing feeling and a dry feeling has been proposed.

Japanese Patent Laid-Open No. 2004-298643 JP-T-2004-528090

  However, when a refreshing agent is contained, there are some wearers who feel that the cooling effect is too strong or that the skin irritation is strong, and there is a problem that excessive stimulation gives a sense of incongruity rather than a refreshing feeling.

  Therefore, the present invention relates to providing an absorbent article that prevents an excessive stimulus from being given to the wearer by the refreshing agent and can more reliably suppress discomfort due to stuffiness.

  The present invention has been studied to solve the above-mentioned problems. As a result, when a 2-methyl-4-phenyl-1-pentanol known as a fragrance is used in combination with a refreshing agent, stimulation by the refreshing agent is performed. It has been found that the feeling can be effectively suppressed and the refreshing feeling is maintained without being impaired.

  That is, the present invention relates to an absorbent article including a refreshing agent and 2-methyl-4-phenyl-1-pentanol.

  ADVANTAGE OF THE INVENTION According to this invention, the refreshing sensation by a refreshing agent is not impaired, Excessive irritation | stimulation which is worn by a wearer by a refreshing agent can be prevented, and the discomfort by a stuffiness or stickiness etc. can be suppressed effectively.

The perspective view which shows the panty liner as one Embodiment of this invention absorbent article.

(Freshener and 2-methyl-4-phenyl-1-pentanol)
The “cooling agent” contained in the absorbent article of the present invention is a refreshing feeling to the wearer by stimulating a temperature receptor (cool receptor such as TRPM8) on the skin or mucosal surface of the wearer of the absorbent article. It means a substance that can communicate. Such a substance may be any compound that can depolarize the temperature receptor membrane on the skin or mucosal surface. Specifically, it is a compound known as a “cooling agent” (Handbook of cosmetic science). and technology, 3rd ed., Andre'O. Barel, Marc Paye, Howard I. Maibach, Eds., Informal Healthcare (Pub.), New York, 2009). For example, 1) cyclohexyl derivatives (formula (1)), 2) cyclohexanol derivatives (formulas (2a) and (2b)), 3) carboxamides (menthane carboxamide (formula (3a)), tertiary or Secondary aliphatic carboxamides (formula (3b)) and the like can be exemplified, but are not limited thereto.

1) Cyclohexyl derivatives

[Wherein, R is a group —CH ₂ CH (R ¹ ) (OH) CH ₂ OR ^2, wherein R ¹ is a hydrogen atom or a methyl group, R ² is a hydrogen atom, and a straight chain having 1 to 6 carbon atoms. Or a branched alkyl group or a 2-alkoxyethyl group.), A group — (CH ₂ ) _n —OH (where n represents an integer of 1 to 10), or a group —CO—R ³ (wherein R ³ represents a hydrogen atom, a linear or branched alkyl or alkenyl group having 1 to 6 carbon atoms, or a linear or branched hydroxyalkyl group having 1 to 6 carbon atoms, and R ′ represents a hydrogen atom, a hydroxyl group, or a carbon number. A 1-6 linear or branched alkyl group or a C1-C6 alkoxy group is shown. ]

2) Cyclohexanol derivative

[Wherein, R ⁴ represents a hydrogen atom, a hydroxyl group or an alkoxy group having 1 to 6 carbon atoms, R ⁵ and R ⁶ independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 6 carbon atoms, R ′ represents a hydrogen atom, a hydroxyl group, a linear or branched alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms. ]

3) Carboxamides

[Wherein, R ⁷ represents a hydrogen atom or a linear or branched alkyl group having 1 to 6 carbon atoms, R ⁸ represents a linear or branched alkyl group having 1 to 6 carbon atoms, and R ⁹ represents a hydrogen atom or carbon. A linear or branched alkyl group having 1 to 6 carbon atoms, and R ¹⁰ and R ¹¹ independently represent a linear or branched alkyl group having 1 to 6 carbon atoms. ]

Specific examples of cooling agents that can be preferably used in the present invention include the following.
1) A cyclohexyl derivative:
Menthyl lactate, menthylethylaminooxalic acid, 3- (1-menthoxy) propane-1,2-diol, 3- (l-menthoxy) -2-methylpropane-1,2-diol, menthyl succinate, 3- ( l-menthoxy) ethane-1-ol, 3- (l-menthoxy) propan-1-ol, 3- (l-menthoxy) butan-1-ol, l-menthyl-4-hydroxypentanoate, l-menthyl -3-hydroxybutyrate and the like.
2) Cyclohexanol derivative:
Menthol, p-menthane-3,8-diol, isopulegol and the like.
3) Carboxamides:
N-ethyl-p-menthane-3-carboxamide (N-ethyl-2-isopropyl-5-methylcyclohexane-1-carboxamide), N, 2,3-trimethyl-2- (l-methylethyl) -butanamide, l -Menthyl acetic acid N-ethylamide and the like.
Among these, menthol, menthyl lactate, and N-ethyl-p-menthane-3-carboxamide are preferable from the viewpoint of the refreshing feeling and the stimulus-suppressing effect of 2-methyl-4-phenyl-1-pentanol.

  Further, the refreshing agent used in the present invention may be a plant extract containing one or more of the above compounds. The refreshing agents can be used alone or in combination.

  In the present invention, “2-methyl-4-phenyl-1-pentanol” is a substance represented by the following formula and used as a skin care, a softening agent and the like as a perfume having a high residual fragrance, and “Paplefull” Is commercially available. Applicant has determined that 2-methyl-4-phenyl-1-pentanol inhibits the activity of TRPA1, a non-selective cation channel belonging to the superfamily of transient receptor potential (TRP) ion channels, It has been found that it is effective for alleviating the irritation to the skin and mucous membranes caused by irritation causing substances such as menthol, and a patent application has already been filed (PCT / JP2013 / 050347).

  In 2-methyl-4-phenyl-1-pentanol, there is an asymmetric carbon atom and a stereoisomer exists, but in the present invention, either a mixture of each isomer or an isolated isomer is present. It's okay.

  2-Methyl-4-phenyl-1-pentanol can be chemically synthesized according to a known method (for example, J. Org. Chem. 2005, 70, 1281-1290). Moreover, a commercially available “palefuller” (IFF company) can also be used.

The content of the refreshing agent contained in the absorbent article of the present invention stimulates the temperature receptors in the area of the skin and / or mucosal surface that the article contacts, thereby delivering the desired refreshment. The amount is 0.5 mg or more, preferably 1 mg or more, more preferably 2 mg or more, and 50 mg or less, preferably 40 mg or less, more preferably 30 mg or less per absorbent article. Moreover, it is 0.5-50 mg, Preferably it is 1-40 mg, More preferably, it is 2-30 mg.
Further, in at least a portion of the article, an area 10 cm ² per average 0.05 g / m ² or more, preferably 0.1 g / m ² or more, more preferably 0.15 g / m ² or more and 10 g / m ² or less, preferably 5 g / m ² or less, more preferably 3 g / m ² or less. Further, 0.05~10g / m ^2, preferably 0.1-5 g / m ^2, more preferably 0.15~3g / m ^2.

The content of 2-methyl-4-phenyl-1-pentanol to be contained in the absorbent article of the present invention may be an amount sufficient to alleviate irritation caused by a refreshing agent. It is 0.1 mg or more, preferably 0.5 mg or more, more preferably 1 mg or more, and 50 mg or less, preferably 30 mg or less, more preferably 20 mg or less. Moreover, it is 0.1-50 mg, Preferably it is 0.5-30 mg, More preferably, it is 1-20 mg.
Further, in at least a portion of the article, an area 10 cm ² per average 0.01 g / m ² or more, preferably 0.05 g / m ² or more, more preferably 0.1 g / m ² or more and 10 g / m ² or less, preferably 5 g / m ² or less, more preferably 3 g / m ² or less. Further, 0.01~10g / m ^2, and preferably 0.05-5 g / m ^2, more preferably 0.1 to 3 g / m ^2.

  Furthermore, the content ratio ((A) / (B) of the refreshing agent (A) and 2-methyl-4-phenyl-1-pentanol (B) to be contained in the absorbent article of the present invention (ie, the refreshing agent). / 2-methyl-4-phenyl-1-pentanol) is 0.2 or more, preferably 0.25 or more, more preferably 0.3 or more, and 5 or less, preferably 4 or less, more preferably 3 or less. Moreover, it is 0.2-5, Preferably it is 0.25-4, More preferably, it is 0.3-3.

  The refreshing agent and 2-methyl-4-phenyl-1-pentanol can be contained in the absorbent article as they are, or can be appropriately dissolved in a solvent such as ethanol or isopropyl alcohol. It is preferable to make it contain in an article | item in the state which the movement to a wearer's skin is accelerated | stimulated directly or indirectly. That is, a refreshing agent and / or 2-methyl-4-phenyl-1-pentanol is used in the form of a solution, suspension, dispersion, emulsion, wax or the like using an appropriate carrier vehicle. Is preferred. Here, typical carrier vehicles include polyhydric alcohols, hydrocarbon oils, fatty acid esters, long chain alcohols, and oils such as silicone oils and lipids, ultrafine solids such as starch or talc. .

Here, examples of the polyhydric alcohol include glycerin, propylene glycol, butylene glycol, diethylene glycol, polyethylene glycol, sorbitol and the like.
Examples of hydrocarbon oils include squalane, squalene, mink oil, jojoba oil, olive oil, castor oil, carnauba wax, beeswax, candelilla wax, lanolin, ceresin, petrolatum, liquid paraffin, microcrystalline wax, petroleum wax, polyethylene wax, and the like. .
Examples of the fatty acid ester include lanolin fatty acid isopropyl, isopropyl myristate, myristic myristate, octyldodecyl myristate, neopentyl glycol dicaprate, cholesteryl isostearate, glycerin derivatives (monoglyceride, diglyceride, triglyceride) and the like.
Examples of the long chain alcohol include lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, lanolin alcohol, hydrogenated lanolin alcohol, isostearyl alcohol, cholesterol and the like.
Examples of the silicone oil include linear or cyclic silicone and modified silicone.

  Among these, it is preferable to use glycerin from the point of the continuation of a stimulus relaxation effect and a cooling effect. The amount of carrier vehicle (eg, glycerin) used is 0.1 mg or more, preferably 0.5 mg or more, more preferably 1 mg or more, and 50 mg or less, preferably 30 mg or less, more preferably per absorbent article. Is 20 mg or less. Moreover, it is 0.1-50 mg, Preferably it is 0.5-30 mg, More preferably, it is 1-20 mg.

  In addition, the refreshing agent and / or 2-methyl-4-phenyl-1-pentanol may be in the form of a soluble microcapsule that dissolves upon contact with moisture from the body fluid.

  As long as both the refreshing agent and 2-methyl-4-phenyl-1-pentanol are contained in the absorbent article, the method of incorporation into the article is not particularly limited. That is, after mixing both, you may make it contain in articles | goods and you may make each solution prepared separately contain separately. In the case of separate installation, both may be installed in the same place (component) of the article or in different places, but preferably in the same place.

Incorporation of the cooling agent and 2-methyl-4-phenyl-1-pentanol into the absorbent article allows the agent to be delivered directly or indirectly to the wearer's skin during normal wear of the article. It is incorporated in the surface or inside of one or more components such as any one of the components, that is, a top sheet (top sheet, second sheet), a back sheet, and an absorber.
Specifically, each solution of the refreshing agent and 2-methyl-4-phenyl-1-pentanol is mixed with an appropriate carrier vehicle (for example, glycerin), and then sprayed onto any component of the absorbent article. , Dipping, transferring, soaking, etc.

  In addition, the application position is more in the central part (so-called central band), that is, in the region where body fluid is discharged, than both sides in the width direction of the absorbent article, and there are a lot of cooling agents and 2-methyl-4-phenyl-1-pentanol. It is preferable to contain so that it may exist. In particular, in the case of the center band on the surface of the top sheet, and the example of the panty liner described later, it is preferably contained so as to be present in the center band on the surface facing the wearer of the top sheet.

(Absorbent article)
In the present invention, the term “absorbent article” means that fluids and / or exudates, especially body fluids / body exudates, can be received and / or absorbed and / or contained and / or retained. All articles are meant, preferably sanitary napkins, panty liners, incontinence pads, diapers and the like. In addition, the shape and configuration are not particularly limited, but at least include a top sheet located on the wearer's surface side during use, a back sheet located directly on the clothing surface side during use, and an absorbent body interposed therebetween. Is given as a typical example. Here, the top sheet can include a second sheet positioned between the top sheet and the absorbent body, in addition to the top sheet that directly faces the wearer during use. FIG. 1 shows an example of a panty liner as an absorbent article. That is, the absorbent article 1 includes a top sheet 2 that directly faces the wearer when used, a back sheet 3 that directly faces clothing when used, a second sheet 4a between the top sheet 2 and the absorber 4b, and a second sheet An absorber 4b interposed between the sheet 4a and the back sheet 3 is provided.
Hereinafter, the absorbent body, the surface sheet, and the back sheet will be described. However, the same constituent elements as those conventionally used for this type of article can be used, and the constituent elements are not limited thereto. Absent.

1) Absorber The absorber is composed of a polymer absorber, a fiber material such as a hydrophilic fiber, or a combination thereof.
Examples of hydrophilic fibers include pulverized pulp, cellulose such as cotton, regenerated cellulose such as rayon and fibril rayon, semi-synthetic cellulose such as acetate and triacetate, particulate polymer, fibrous polymer, thermoplastic hydrophobic chemical fiber, or A thermoplastic hydrophobic chemical fiber or the like subjected to hydrophilic treatment can be used alone or in combination. Among these, it is preferable to use pulverized pulp in consideration of low cost and ease of forming the absorber.

Examples of the polymer absorbent include granular polymers such as absorptive and hygroscopic sodium acrylate copolymer.
You may comprise an absorber by covering a hydrophilic fiber and a polymer absorber with a coating material.

The absorbent body may be an air laid sheet obtained by forming hydrophilic fibers or powder into a sheet by the air laid method. As an example of an airlaid sheet, a fiber and particulate polymer formed into a sheet with a binder or the like can be cited. The particulate polymer may be dispersed in layers in the airlaid sheet, or may be biased in the thickness direction.
Further, for example, a granular deodorizing material such as silver, copper, zinc, silica, activated carbon, aluminosilicate compound, zeolite, or granular antibacterial material may be added to the absorber.

  Embossing may be formed in the absorbent body in order to prevent loss of shape and twist during wearing, or to adjust the thickness.

2) Top sheet The top sheet is composed of a single layer or multiple layers. Preferably, it comprises a first layer (also referred to as a top sheet) that provides a surface facing the wearer of the face sheet, and a second layer (also referred to as a second sheet) between the first layer and the absorbent body. To do.

  The surface sheet is not particularly limited as long as it is a sheet-like material having a structure that allows liquid to permeate, such as a woven fabric, a nonwoven fabric, and a perforated plastic sheet (apertured film). Either natural fibers or chemical fibers can be used as the woven or non-woven material.

  Examples of natural fibers include cellulose such as pulverized pulp and cotton. Examples of the chemical fiber include regenerated cellulose such as rayon and fibril rayon, semi-synthetic cellulose such as acetate and triacetate, thermoplastic hydrophobic chemical fiber, or thermoplastic hydrophobic chemical fiber subjected to hydrophilic treatment.

  Examples of thermoplastic hydrophobic chemical fibers include single fibers such as polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET), fibers formed by graft polymerization of polyethylene and polypropylene, and composite fibers such as a core-sheath structure. Can be mentioned.

  As the web forming method of the nonwoven fabric, any one of a dry method (a card method, a spun bond method, a melt blown method, an airlaid method, etc.) and a wet method can be used. A plurality of methods may be combined among the dry method and the wet method. Moreover, methods, such as thermal bonding, needle punching, and chemical bonding, are mentioned. The method for producing the nonwoven fabric is not limited to the above-described method.

3) Back sheet As the back sheet, a film mainly composed of polyethylene, polypropylene, a breathable resin film, a sheet obtained by bonding a breathable resin film to a nonwoven fabric such as spunbond or spunlace can be used. . The back sheet is preferably made of a material having a degree of flexibility that does not cause discomfort when worn.
This invention discloses the following absorbent articles further regarding embodiment mentioned above.

<1> An absorbent article containing a refreshing agent and 2-methyl-4-phenyl-1-pentanol.

<2> The absorbent article includes a surface sheet and an absorbent body,
The refreshing agent is a cyclohexanol derivative selected from menthol, p-menthane-3,8-diol, and isopulegol, menthyl lactate, menthylethylaminooxalic acid, 3- (l-menthoxy) propane-1,2-diol, 3 -(L-menthoxy) -2-methylpropane-1,2-diol, menthyl succinate, 3- (l-menthoxy) ethane-1-ol, 3- (l-menthoxy) propan-1-ol, 3- A cyclohexyl derivative selected from (1-menthoxy) butan-1-ol, l-menthyl-4-hydroxypentanoate, and l-menthyl-3-hydroxybutyrate, N-ethyl-p-menthane-3-carboxamide, N, 2,3-trimethyl-2- (l-methylethyl) -butanamide, and l-menthyl acetate N- Carboxamides selected from Chiruamido, is at least one selected from the group consisting of <1> absorbent article according.
<3> The absorbent article according to <1>, wherein the refreshing agent is at least one selected from menthol, menthyl lactate, and N-ethyl-p-menthane-3-carboxamide.
<4> The absorbent article according to <1>, wherein the refreshing agent is represented by the following formula (1).

[Wherein, R is a group —CH ₂ CH (R ¹ ) (OH) CH ₂ OR ^2, wherein R ¹ is a hydrogen atom or a methyl group, R ² is a hydrogen atom, and a straight chain having 1 to 6 carbon atoms. Or a branched alkyl group or a 2-alkoxyethyl group.), A group — (CH ₂ ) _n —OH (where n represents an integer of 1 to 10), or a group —CO—R ³ (wherein R ³ represents a hydrogen atom, a linear or branched alkyl or alkenyl group having 1 to 6 carbon atoms, or a linear or branched hydroxyalkyl group having 1 to 6 carbon atoms, and R ′ represents a hydrogen atom, a hydroxyl group, or a carbon number. A 1-6 linear or branched alkyl group or a C1-C6 alkoxy group is shown. ]
<5> The absorbent article according to <1>, wherein the refreshing agent is represented by the following formula (2a) or (2b).

[Wherein, R ⁴ represents a hydrogen atom, a hydroxyl group or an alkoxy group having 1 to 6 carbon atoms, R ⁵ and R ⁶ independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 6 carbon atoms, R ′ represents a hydrogen atom, a hydroxyl group, a linear or branched alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms. ]
<6> The absorbent article according to <1>, wherein the refreshing agent is represented by the following formula (3a) or (3b).

[Wherein, R ⁷ represents a hydrogen atom or a linear or branched alkyl group having 1 to 6 carbon atoms, R ⁸ represents a linear or branched alkyl group having 1 to 6 carbon atoms, and R ⁹ represents a hydrogen atom or carbon. A linear or branched alkyl group having 1 to 6 carbon atoms, and R ¹⁰ and R ¹¹ independently represent a linear or branched alkyl group having 1 to 6 carbon atoms. ]

<7> The absorbent article according to any one of <1> to <6>, wherein the refreshing agent and / or 2-methyl-4-phenyl-1-pentanol is contained in a mixed state with a carrier vehicle. .
<8> The carrier vehicle is one or more selected from polyhydric alcohols, hydrocarbon oils, fatty acid esters, long chain alcohols, and oils such as silicone oils and lipids, ultrafine particulate solids such as starch or talc. The absorbent article as described in <7>.
<9> The absorbent article according to <7> or <8>, wherein the carrier vehicle is a polyhydric alcohol selected from glycerin, propylene glycol, butylene glycol, diethylene glycol, polyethylene glycol and sorbitol.
<10> The carrier vehicle is selected from squalane, squalene, mink oil, jojoba oil, olive oil, castor oil, carnauba wax, beeswax, candelilla wax, lanolin, ceresin, petrolatum, liquid paraffin, microcrystalline wax, petroleum wax and polyethylene wax. The absorbent article according to <7> or <8>, which is a hydrocarbon oil.
<11> The carrier vehicle is a fatty acid ester selected from lanolin fatty acid isopropyl, myristate isopropyl, myristic myristate, octyldodecyl myristate, neopentyl glycol dicaprate, cholesteryl isostearate and glycerin derivatives (monoglyceride, diglyceride, triglyceride) The absorbent article as described in <7> or <8>.
<12> The absorptivity according to <7> or <8>, wherein the carrier vehicle is a long chain alcohol selected from lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, lanolin alcohol, hydrogenated lanolin alcohol, isostearyl alcohol and cholesterol. Goods.
<13> The absorbent article according to <7> or <8>, wherein the carrier vehicle is a silicone oil selected from linear or cyclic silicones and modified silicones.
<14> The absorbent article according to any one of <7> to <13>, wherein the carrier vehicle content per absorbent article is 0.1 mg or more, preferably 0.5 mg or more, more preferably 1 mg or more. .
<15> The absorbent article according to any one of <7> to <14>, wherein the carrier vehicle content per absorbent article is 50 mg or less, preferably 30 mg or less, more preferably 20 mg or less.

<16> The absorbent article includes a surface sheet and an absorbent body,
The top sheet includes at least a top sheet that directly faces the wearer when in use,
The absorbent article according to any one of <1> to <15>, wherein the refreshing agent and 2-methyl-4-phenyl-1-pentanol are contained in the top sheet.
<17> The absorbent article includes a surface sheet and an absorbent body,
The absorbent article according to any one of <1> to <16>, wherein the refreshing agent and 2-methyl-4-phenyl-1-pentanol are contained in a central portion in the width direction of the absorbent article.
<18> The content of 2-methyl-4-phenyl-1-pentanol per absorbent article is 0.1 mg or more, preferably 0.5 mg or more, more preferably 1 mg or more. <1> to <17> The absorbent article according to any one of 1.
<19> Any one of <1> to <18>, wherein the content of 2-methyl-4-phenyl-1-pentanol per absorbent article is 50 mg or less, preferably 30 mg or less, more preferably 20 mg or less. Absorbent article as described in 1.

<20> 2-methyl-4-phenyl-1-pentanol content area 10 cm ² per absorbent article, average 0.01 g / m ² or more, preferably 0.05 g / m ² or more, more preferably The absorbent article according to any one of <1> to <19>, which is 0.1 g / m ² or more.
<21> The content of 2-methyl-4-phenyl-1-pentanol per 10 cm ² of the absorbent article is 10 g / m ² or less on average, preferably 5 g / m ² or less, more preferably 3 g / m ^2. The absorbent article according to any one of <1> to <20>, which is the following.
<22> The absorbent article according to any one of <1> to <21>, wherein the refreshing agent content per absorbent article is 0.5 mg or more, preferably 1 mg or more, more preferably 2 mg or more.
<23> The absorbent article according to any one of <1> to <22>, wherein the refreshing agent content per absorbent article is 50 mg or less, preferably 40 mg or less, more preferably 30 mg or less.

<24> freshener content area 10 cm ² per absorbent article, average 0.05 g / m ² or more, preferably 0.1 g / m ² or more, more preferably 0.15 g / m ² or more < The absorbent article according to any one of 1> to <23>.
<25> The refreshing agent content per 10 cm ² area of the absorbent article is an average of 10 g / m ² or less, preferably 5 g / m ² or less, more preferably 3 g / m ² or less <1> to <24>. The absorbent article according to any one of 1.
<26> The content ratio of the cooling agent to 2-methyl-4-phenyl-1-pentanol (cooling agent / 2-methyl-4-phenyl-1-pentanol) is 0.2 or more, preferably 0.25. As described above, the absorbent article according to any one of <1> to <25>, more preferably 0.3 or more.
<27> The content ratio of the refreshing agent to 2-methyl-4-phenyl-1-pentanol (cooling agent / 2-methyl-4-phenyl-1-pentanol) is 5 or less, preferably 4 or less, more preferably Is the absorbent article according to any one of <1> to <26>, which is 3 or less.

<28> The absorbent article according to any one of <1> to <27>, wherein the refreshing agent and / or 2-methyl-4-phenyl-1-pentanol is enclosed in a water-soluble microcapsule.
<29> The absorbent article includes a surface sheet and an absorbent body, and a refreshing agent and 2-methyl-4-phenyl-1-pentanol are incorporated in different places in the absorbent article, respectively. <1> The absorbent article according to any one of ~ <28>.
<30> The absorbent article includes a surface sheet and an absorbent body, and the refreshing agent and 2-methyl-4-phenyl-1-pentanol are incorporated in the same place in the absorbent article <1>. The absorbent article according to any one of ~ <29>.
<31> The absorbent article according to any one of <1> to <30>, wherein the absorbent article is any one of a sanitary napkin, a panty liner, an incontinence pad, and a diaper.
EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, the scope of the present invention is not restrict | limited to such an Example.

  The panty liners manufactured in the following examples and comparative examples are formed by forming the four corners of a square having a length of 140 mm, a maximum width of 59 mm, and a minimum width of 50 mm into a substantially circular shape, and the absorbent paper has a length of 100 mm and a width of 30 mm. It is. The panty liner was prepared using the following materials used in Kao Corporation clean style fragrance (panty liner). Constituent materials commonly used in Examples and Comparative Examples are as follows.

[Surface sheet]
A 25 g / m ² non-woven fabric produced by an air-through method was used as a top sheet.
A 40 g / m ² non-woven fabric produced by the air-through method was used as the second sheet.
〔Absorber〕
A 35 g / m ² mount was used as an absorbent body consisting only of water-absorbing paper.
[Back sheet]
A moisture permeable film of 34 g / m ² was used.
[Fixing material for top sheet, second sheet, absorbent paper, and back sheet]
A hot melt agent was applied and used.
[Slip prevention material]
A hot melt agent was applied and used.

1) Preparation of a refreshing agent (A) solution The lactyl menthyl solution was prepared by dissolving menthyl lactate (manufactured by Wako Pure Chemical Industries) with an ethanol solution (manufactured by Wako Pure Chemical Industries) to a concentration of 10% by mass. The menthol solution was prepared by dissolving l-menthol (manufactured by Wako Pure Chemical Industries) with an ethanol solution (manufactured by Wako Pure Chemical Industries) to a concentration of 10% by mass. The N-ethyl-p-menthane-3-carboxamide solution was prepared by dissolving N-ethyl-p-menthane-3-carboxamide (manufactured by RENESSENZ) with an ethanol solution (manufactured by Wako Pure Chemical Industries) to a concentration of 10% by mass.

2) Preparation of 2-methyl-4-phenyl-1-pentanol (B) solution The 2-methyl-4-phenyl-1-pentanol solution was prepared from 2-methyl-4-phenyl-1-pentanol (IFF) Product) was dissolved in an ethanol solution (manufactured by Wako Pure Chemical Industries, Ltd.) to a concentration of 10% by mass.

3) Preparation of 1,8-cineol (C) ^* solution The 1,8-cineole solution was prepared by dissolving 1,8-cineole (manufactured by Wako Pure Chemical Industries, Ltd.) with an ethanol solution (manufactured by Wako Pure Chemical Industries, Ltd.) and 10% by mass. Concentration.
* 1,8-Cineol is known as a TRPA1 activity inhibitor and has been reported as a substance capable of suppressing menthol stimulation (JP 2012-62304 A).

4) Preparation of glycerin solution The glycerin solution was prepared by dissolving glycerin (manufactured by Wako Pure Chemical Industries) with an ethanol solution (manufactured by Wako Pure Chemical Industries) to a concentration of 10% by mass.

[Example 1]
The menthyl lactate solution and the 2-methyl-4-phenyl-1-pentanol solution were mixed at a ratio of 1: 1, and then spray-coated on the entire surface of water-absorbing paper having a length of 100 mm and a width of 65 mm. It was dried for the purpose of evaporating ethanol (constant temperature room: set at 23 ° C./50%, allowed to stand for 24 hours), and the weight after drying was measured (coating amount: 33 mg of menthyl lactate, 2-methyl-4-phenyl-1- Pentanol 33 mg). After applying a hot melt agent to this water-absorbing paper, it was fixed in a state of being folded in three (length 100 mm, width 30 mm) in the width direction. After fixing the water absorbent paper to the back sheet with a hot melt agent, the second sheet and the surface sheet were placed on the water absorbent paper and fixed. Finally, a sample was prepared by applying a hot melt agent for preventing misalignment to the back sheet and placing a release paper thereon.

[Example 2]
After mixing the menthyl lactate solution, the 2-methyl-4-phenyl-1-pentanol solution and the glycerin solution in a ratio of 1: 1 to 0.3 (content ratio (A) / (B) is 1.0), It spray-coated on the whole surface of the water absorbing paper of length 100mm and width 65mm. It was dried for the purpose of evaporating ethanol (constant temperature room: set at 23 ° C./50%, allowed to stand for 24 hours), and the weight after drying was measured (coating amount: 33 mg of menthyl lactate, 2-methyl-4-phenyl-1- Pentanol 33 mg, glycerin 10 mg). After applying a hot melt agent to this water-absorbing paper, it was fixed in a state of being folded in three (length 100 mm, width 30 mm) in the width direction. After fixing the water absorbent paper to the back sheet with a hot melt agent, the second sheet and the surface sheet were placed on the water absorbent paper and fixed. Finally, a sample was prepared by applying a hot melt agent for preventing misalignment to the back sheet and placing a release paper thereon.

[Examples 3-6, 9, 13-15, 28], [Comparative Examples 1, 4-7]
Samples were prepared in the same manner as in Example 1 with the blending ratios shown in Table 1-1 and Table 1-2.

[Examples 10, 18, and 29]
Samples were prepared in the same manner as in Example 2 with the blending ratios shown in Table 1-1 and Table 1-2.

Example 7
2-methyl-4-phenyl-1-pentanol of menthyl lactate on one sheet (length: 100 mm, width: 30 mm) obtained by cutting the water-absorbing paper into three parts in the width direction (width 30 mm × 1, 17.5 mm × 2) The solution (one-to-one mixture (content ratio (A) / (B) is 1.0), not diluted with ethanol) was applied at two locations on the center line in the width direction at intervals of 33 mm (coating amount: 10 mg of menthyl lactate) 2-methyl-4-phenyl-1-pentanol 10 mg). After drying in a thermostatic chamber (set at 23 ° C./50%, allowed to stand for 24 hours), the remaining two water-absorbent papers were pasted in a double layer (triple in the center) with a hot melt agent. Next, the water absorbent paper was fixed to the back sheet with a hot melt agent, and then the second sheet and the surface sheet were placed on the water absorbent paper and fixed. Finally, a sample was prepared by applying a hot melt agent for preventing misalignment to the back sheet and placing a release paper thereon.

Example 8
Two sheets (length 100 mm, width 17.5 mm) obtained by cutting the water-absorbing paper into three parts in the width direction (width 30 mm × 1, 17.5 mm × 2), lactate menthyl solution and 2-methyl-4-phenyl-1 -A pentanol solution mixed at a ratio of 1: 1 (content ratio (A) / (B) is 1.0) was applied over the entire surface (coating amount: 13 mg of menthyl lactate, 2-methyl-4-phenyl- 1-pentanol 13 mg). After drying in a thermostatic chamber (set at 23 ° C./50%, allowed to stand for 24 hours), the water-absorbing paper was doubled (center triple) with a hot melt agent. Next, the water absorbent paper was fixed to the back sheet with a hot melt agent, and then the second sheet and the surface sheet were placed on the water absorbent paper and fixed. Finally, a sample was prepared by applying a hot melt agent for preventing misalignment to the back sheet and placing a release paper thereon.

[Examples 11 and 12]
Samples were prepared in the same manner as in Example 8 with the blending ratio shown in Table 1-1.

Example 16
The menthyl lactate solution and the 2-methyl-4-phenyl-1-pentanol solution were mixed at a ratio of 1: 1, and then spray-coated on the entire surface of the second sheet (length 140 mm, maximum width 59 mm, minimum width 50 mm). It was dried for the purpose of evaporating ethanol (constant temperature room: set at 23 ° C./50%, allowed to stand for 24 hours), and the weight after drying was measured (coating amount: 13 mg of menthyl lactate, 2-methyl-4-phenyl-1- Pentanol 13 mg). After applying the hot melt agent to this second sheet, it was fixed to a water absorbent paper (length 100 mm, width 30 mm) folded in three in the width direction. Then, the back sheet and the surface sheet were each fixed with a hot melt agent. Finally, a sample was prepared by applying a hot melt agent for preventing misalignment to the back sheet and placing a release paper thereon.

[Examples 17, 19, 21-24], [Comparative Example 2]
Samples were prepared in the same manner as in Example 16 with the blending ratios shown in Table 1-1 and Table 1-2.

Example 18
A menth lactate solution, a 2-methyl-4-phenyl-1-pentanol solution, and a glycerin solution were mixed at a predetermined ratio, and then spray-coated on the entire surface of a second sheet (length 140 mm, maximum width 59 mm, minimum width 50 mm). . It was dried for the purpose of evaporating ethanol (constant temperature room: set at 23 ° C./50%, allowed to stand for 24 hours), and the weight after drying was measured (coating amount: 13 mg of menthyl lactate, 2-methyl-4-phenyl-1- Pentanol 13 mg, glycerol 10 mg). After applying a hot melt agent to this second sheet, it was fixed to a water-absorbing paper folded in three in the width direction (length 100 mm, width 30 mm). Then, the back sheet and the surface sheet were each fixed with a hot melt agent. Finally, a sample was prepared by applying a hot melt agent for preventing misalignment to the back sheet and placing a release paper thereon.

Example 20
The second sheet was cut into three parts in the width direction (the width corresponding to the maximum width of 59 mm, the width of 19.7 mm × 3), and two sheets on both ends were mixed with a lactyl menthyl solution and 2-methyl-4-phenyl-1-pentanol. What mixed the solution by the ratio of 1: 1 (content ratio (A) / (B) is 1.0) apply | coated the whole surface (amount of coating: 13 mg of menthyl lactate, 2-methyl-4-phenyl-1-pen) Tanol 13 mg). After drying in a temperature-controlled room (set at 23 ° C./50%, allowed to stand for 24 hours), two sheets of water-absorbing paper (length 100 mm, width 30 mm) coated with a hot melt agent in the width direction were applied. The sheet was fixed to both sides and the uncoated sheet was fixed to the center. Then, the back sheet and the surface sheet were each fixed with a hot melt agent. Finally, a sample was prepared by applying a hot melt agent for preventing misalignment to the back sheet and placing a release paper thereon.

Example 25
After mixing the menthyl lactate solution and the 2-methyl-4-phenyl-1-pentanol solution in a ratio of 1 to 2 (content ratio (A) / (B) is 0.5), a surface sheet (length 140 mm, Spray coating was performed on the entire surface with a maximum width of 59 mm and a minimum width of 50 mm. It was dried for the purpose of evaporating ethanol (constant temperature room: set at 23 ° C./50%, allowed to stand for 24 hours), and the weight after drying was measured (coating amount: 13 mg of menthyl lactate, 2-methyl-4-phenyl-1- Pentanol 26 mg). After applying the hot melt agent to the back sheet, it was fixed to a water absorbent paper (length 100 mm, width 30 mm) folded in three in the width direction. On top of that, the second sheet and the above-mentioned surface sheet were respectively fixed. Finally, a sample was prepared by applying a hot melt agent for preventing misalignment to the back sheet and placing a release paper thereon.

[Examples 26, 27, 30 to 32], [Comparative Example 3]
Samples were prepared in the same manner as in Example 25 with the blending ratio shown in Table 1-2.

[Sample evaluation]
A mounting test was conducted as follows to perform sensory evaluation.
1) Test conditions Test environment: Temperature 27 ° C, humidity 60%
Clothing: Sample products were put on underwear, polo shirts, slacks shorts, and 1 to 3 female deskwork wearers were evaluated for coolness, pain and stuffiness after 1 hour, 3 hours and 4 hours.

2) Criteria for sensory evaluation 2-1) The sensory value of coolness was expressed in the following 8 levels.
5: Cool feeling is too strong 4: Cool feeling is slightly strong 3: Just refreshing feeling 2: Feeling cool but slightly weak 1: Feeling cool but weak 0: Not feeling (same as reference or external environment) )
-1: Slightly feel stuffiness-2: Feel stuffiness

2-2) The sensory value of pain was expressed in the following six stages.
5: Strongly painful 4: Strong and strong 3: Painful 2: Slightly painful 1: Slightly painful 0: No feeling (same as reference or external environment)

2-3) Sensory evaluation of sensation of sensation was expressed in the following three stages. ○: Feeling no stuffiness △: Feeling some stuffiness ×: Feeling stuffiness

The results are shown in Table 1-1, Table 1-2, and Table 2.
The wearer was able to reduce the stuffiness without pain in Examples 1 to 32. Further, in Examples 2, 11, 18, and 29 to which a carrier vehicle (glycerin) was added, the effect was maintained for a long time as compared with the system not added. On the other hand, in Comparative Examples 1 to 7 in which the refreshing agent (A) and 2-methyl-4-phenyl-1-pentanol (B) were not used in combination, the stuffiness was not reduced.
When 1,8-cineole (C), which has been reported to have a stimulating and mitigating effect on menthol, is used instead of 2-methyl-4-phenyl-1-pentanol (B). The feeling of stuffiness was not reduced.

DESCRIPTION OF SYMBOLS 1 Absorbent article 2 Top sheet 3 Back sheet 4a Second sheet 4b Absorber 4c Extension part 5 Peripheral junction part

Claims (11)

  An absorbent article comprising a refreshing agent and 2-methyl-4-phenyl-1-pentanol.   The refreshing agent is a cyclohexanol derivative selected from menthol, p-menthane-3,8-diol, and isopulegol, menthyl lactate, menthylethylaminooxalic acid, 3- (l-menthoxy) propane-1,2-diol, 3 -(L-menthoxy) -2-methylpropane-1,2-diol, menthyl succinate, 3- (l-menthoxy) ethane-1-ol, 3- (l-menthoxy) propan-1-ol, 3- A cyclohexyl derivative selected from (1-menthoxy) butan-1-ol, l-menthyl-4-hydroxypentanoate, and l-menthyl-3-hydroxybutyrate, N-ethyl-p-menthane-3-carboxamide, N, 2,3-trimethyl-2- (l-methylethyl) -butanamide, and l-menthyl acetate N- Carboxamides selected from Chiruamido The absorbent article of claim 1 wherein at least one member selected from the group consisting of.   The absorbent article according to claim 1, wherein the refreshing agent is at least one selected from menthol, menthyl lactate and N-ethyl-p-menthane-3-carboxamide.   The absorbent article according to any one of claims 1 to 3, wherein a refreshing agent and 2-methyl-4-phenyl-1-pentanol are contained in a mixed state with a carrier vehicle. The absorbent article includes a surface sheet and an absorbent body,
The top sheet includes at least a top sheet that directly faces the wearer when in use,
The absorbent article according to any one of claims 1 to 4, wherein a refreshing agent and 2-methyl-4-phenyl-1-pentanol are contained in the top sheet. The absorbent article includes a surface sheet and an absorbent body,
The absorbent article according to any one of claims 1 to 5, wherein the refreshing agent and 2-methyl-4-phenyl-1-pentanol are contained in a central portion in the width direction of the absorbent article.   The absorbent article according to any one of claims 1 to 6, wherein the content of 2-methyl-4-phenyl-1-pentanol per absorbent article is from 0.1 mg to 50 mg. 8. The content of 2-methyl-4-phenyl-1-pentanol per 10 cm ² of the absorbent article is an average of 0.01 g / m ² or more and 10 g / m ² or less. Absorbent article according to item.   The absorbent article according to any one of claims 1 to 8, wherein a refreshing agent content per absorbent article is 0.5 mg or more and 50 mg or less. Freshener content area 10 cm ² per absorbent article, an average, the absorbent article of any one of claims 1 to 9 0.05 g / m ² or more and 10 g / m ² or less.   The content ratio of the refreshing agent and 2-methyl-4-phenyl-1-pentanol (cooling agent / 2-methyl-4-phenyl-1-pentanol) is 0.2 or more and 5 or less. The absorbent article according to any one of the above.

Images