Absorbent article comprising a lotion composition and the lotion composition

Abstract

The present invention relates to an absorbent article comprising a lotion composition and the lotion composition. Provided is an absorbent article comprising a lotion composition that is not easily transferred to the skin of the wearer from the beginning of wearing the absorbent article and is easy to protect the skin of the wearer. An absorbent article characterized in that a liquid permeable sheet has a lotion composition on its skin contacting surface, the lotion composition comprising: (i) a glycolipid surfactant, wherein one molecule of C is glycosidically bonded to one molecule of hexose n H 2n+ 2O n (n is an integer of 4 to 6) and a hydroxy fatty acid; and (ii) a hydrophobic component comprising at least one selected from the group consisting of glycerol fatty acid esters, polyglycerol fatty acid esters, propylene oxide and / or butylene oxide adducts of glycerol, and propylene oxide and / or butylene oxide adducts of polyglycerol.

Description

Technical Field

[0001] The present application relates to absorbent articles comprising lotion compositions and to the lotion compositions. Background Art

[0002] Absorbent articles comprising lotion compositions are known.

[0003] For example, Patent Document 1 discloses a detergent composition for the purpose of suppressing adhesion of excrement to the skin of a wearer and an absorbent article including the detergent composition. The detergent composition described in Patent Document 1 has the following configuration.

[0004] A lotion composition, characterized in that it is a semi-solid or solid lotion composition applied to an absorbent article worn by a wearer at 20°C, the lotion composition comprising: (A) 20 to 95% by weight of an emollient having a plastic or fluid consistency at 20°C, the emollient containing 5% by weight or less of water relative to the total amount of the emollient, the emollient comprising one selected from a petroleum-based emollient, an alkyl ethoxylate emollient and a mixture thereof, the petroleum comprising a hydrocarbon or a mixture of hydrocarbons having a chain length of 16 to 32 carbon atoms; and (B) 5 to 80% by weight of a fixing agent capable of fixing the emollient to the surface of a top sheet of an absorbent article treated with the lotion composition, the fixing agent having a melting point of 50 to 150°C and comprising a fixing agent selected from C 14 -C 22 Fatty alcohols and C 12 -C 22 A type of fatty acid.

[0005] In addition, studies have been conducted to suppress irritation to the skin by applying a fiber treatment agent to synthetic fibers. For example, Patent Document 2 discloses obtaining a hydrophilic synthetic fiber by attaching a fiber treatment agent to the surface of a synthetic fiber, wherein the fiber treatment agent comprises: (a) a surfactant, which is at least one selected from the group consisting of a surfactant having a lipopeptide structure represented by surfactant peptides (Surfaction), a surfactant of glycolipids represented by sophorolipids, rhamnolipids, and mannoerythritol lipids; (b) at least one compound selected from the group consisting of (poly)glycerol, (poly)glycerol fatty acid esters, and (poly)glycerol alkylene oxide adducts; and (c) lactate, wherein when the total mass of components (a) to (c) is set to 100 mass%, component (a) is contained in an amount of 2.5 mass% or more and 50 mass% or less.

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: Japanese Patent Application Publication No. 2009-137964

[0009] Patent Document 2: Japanese Patent Application Publication No. 2012-57275 Summary of the invention

[0010] Problem that the invention aims to solve

[0011] The detergent composition described in Patent Document 1 contains a fixing agent capable of fixing an emollient having a plastic or fluid consistency at 20° C. in order to suppress the penetration of the detergent composition into the interior of the absorbent article.

[0012] Therefore, the lotion composition described in Patent Document 1 is difficult to transfer to the wearer's skin before the immobilizing agent in the lotion composition melts at the beginning of wearing the absorbent article, and it is difficult to protect the wearer's skin at the beginning of wearing the absorbent article.

[0013] Furthermore, the fiber treating agent described in Patent Document 2 is not transferred to the skin of the wearer.

[0014] Therefore, an object of the present application is to provide an absorbent article comprising a lotion composition that is unlikely to move before use of the absorbent article and is easily transferred to the wearer's skin from the beginning of wearing, thereby easily protecting the wearer's skin.

[0015] Solutions for solving problems

[0016] The present applicants have discovered an absorbent article, characterized in that it is an absorbent article comprising a liquid permeable sheet, a liquid impermeable sheet, and an absorbent body therebetween, wherein the liquid permeable sheet has a skin contacting surface and a non-skin contacting surface, and the liquid permeable sheet has a lotion composition on the skin contacting surface, wherein the lotion composition comprises: (i) a glycolipid surfactant, wherein one molecule of C is glycosidically bonded to one molecule of hexose; n H 2n+2 O n (n is an integer of 4 to 6) and a hydroxy fatty acid; and (ii) a hydrophobic component comprising at least one selected from the group consisting of glycerol fatty acid esters, polyglycerol fatty acid esters, propylene oxide and / or butylene oxide adducts of glycerol, and propylene oxide and / or butylene oxide adducts of polyglycerol.

[0017] Effects of the Invention

[0018] The lotion composition in the absorbent article of the present application is unlikely to move before use of the absorbent article and is easily transferred to the wearer's skin from the beginning of wearing, thereby easily protecting the wearer's skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a figure for demonstrating the result of Example 1 and Comparative Examples 1 and 2. DETAILED DESCRIPTION

[0020] Specifically, the present application relates to the following aspects.

[0021] [Method 1]

[0022] An absorbent article, characterized in that it is an absorbent article comprising a liquid permeable sheet, a liquid impermeable sheet and an absorbent body therebetween, wherein the liquid permeable sheet has a skin contacting surface and a non-skin contacting surface,

[0023] The liquid-permeable sheet has a lotion composition on the skin-contacting surface, wherein the lotion composition comprises:

[0024] (i) Glycolipid surfactants, which consist of one molecule of C bonded to one molecule of hexose n H 2n+2 O n (n is an integer of 4 to 6) and a hydroxy fatty acid; and

[0025] (ii) A hydrophobic component comprising at least one selected from the group consisting of glycerol fatty acid esters, polyglycerol fatty acid esters, propylene oxide and / or butylene oxide adducts of glycerol, and propylene oxide and / or butylene oxide adducts of polyglycerol.

[0026] The absorbent article has a lotion composition on the skin contacting surface of the liquid permeable sheet, wherein the lotion composition contains a predetermined (i) surfactant and a predetermined (ii) hydrophobic component. Therefore, the lotion composition can have a predetermined viscosity at room temperature (25° C.), and the lotion composition is not likely to move into the interior of the absorbent article before use.

[0027] Furthermore, the above lotion composition may have a predetermined viscosity at room temperature (25° C.), and the lotion composition can be easily transferred to the wearer's skin even before the lotion composition is warmed by the wearer's body temperature at the beginning of wearing the absorbent article.

[0028] Furthermore, the above-mentioned lotion composition contains (i) a surfactant, and therefore, the (i) surfactant can protect the skin of the wearer.

[0029] Furthermore, the above-mentioned detergent composition contains (i) a surfactant and (ii) a hydrophobic component, and therefore, the detergent composition can hold other components having properties such as water-solubility, hydrophilicity, hydrophobicity (lipophilicity), oil-solubility, etc. For example, the above-mentioned detergent composition can hold other components having oil-solubility in the (ii) hydrophobic component by dissolving them, and can hold other components having hydrophobicity (lipophilicity), water-solubility or hydrophilicity in the (ii) hydrophobic component by micellizing them as needed using the (i) surfactant.

[0030] As described above, in the absorbent article, the lotion composition is unlikely to move before use of the absorbent article and is easily transferred to the wearer's skin from the beginning of wearing, and is easy to protect the wearer's skin.

[0031] [Method 2]

[0032] The absorbent article according to embodiment 1, wherein the detergent composition contains (i) the surfactant and (ii) the hydrophobic component in a ratio of 1.0 to 22.0% by mass and 78.0 to 99.0% by mass, respectively, relative to 100% by mass of the total of (i) the surfactant and (ii) the hydrophobic component.

[0033] In the absorbent article, the lotion composition contains (i) a surfactant and (ii) a hydrophobic component in a predetermined mass ratio. Therefore, the lotion composition is not easily transferred to the wearer's skin before use of the absorbent article and is easily transferred to the wearer's skin from the beginning of wearing, thereby easily protecting the wearer's skin.

[0034] [Method 3]

[0035] The absorbent article according to aspect 1 or 2, wherein the detergent composition further comprises (iii) a hydrophilic component containing water.

[0036] In the absorbent article, since the detergent composition contains the predetermined (iii) hydrophilic component, it is easy to adjust the viscosity of the detergent composition to a predetermined range.

[0037] In the absorbent article, the lotion composition contains the predetermined (iii) hydrophilic component, so that the other water-soluble components can be dissolved and retained in the (iii) hydrophilic component, and the other hydrophilic components can be micellized by the (i) surfactant as needed, so that the other hydrophilic components can be retained in the (iii) hydrophilic component. As a result, after the lotion composition contacts the skin of the wearer, the other water-soluble or hydrophilic components can be easily and quickly transferred to the skin of the wearer.

[0038] [Method 4]

[0039] An absorbent article according to any one of embodiments 1 to 3, wherein the detergent composition contains (i) a surfactant, (ii) a hydrophobic component, and (iii) a hydrophilic component in ratios of 1.0 to 20.0 mass %, 78.0 to 98.9 mass %, and 0.1 to 2.0 mass %, respectively, relative to 100 mass % of the total of (i) a surfactant, (ii) a hydrophobic component, and (iii) a hydrophilic component.

[0040] In the above-mentioned absorbent article, the lotion composition contains (i) a surfactant, (ii) a hydrophobic component and (iii) a hydrophilic component in a predetermined mass ratio. Therefore, the lotion composition is not easy to move before using the absorbent article and is easily transferred to the wearer's skin from the beginning of wearing, so that the wearer's skin is easily protected.

[0041] [Method 5]

[0042] The absorbent article according to any one of aspects 1 to 4, wherein the detergent composition has a viscosity of 15 to 40 mPa·s at 25°C.

[0043] In the absorbent article, the lotion composition has a predetermined viscosity at room temperature (25° C.), so the lotion composition is unlikely to move before use of the absorbent article and is easily transferred to the wearer's skin from the beginning of wearing.

[0044] [Method 6]

[0045] The absorbent article according to any one of aspects 1 to 5, wherein the detergent composition has a viscosity of 15 to 30 mPa·s at 36°C.

[0046] In the absorbent article, the lotion composition has a predetermined viscosity at 36°C. Therefore, after the lotion composition moves to the wearer's skin, it is not easy to move from the wearer's skin to other parts, such as the inside of the absorbent article, even when warmed by the wearer's body temperature.

[0047] [Method 7]

[0048] The absorbent article according to any one of aspects 1 to 6, wherein the difference between the viscosity of the detergent composition at 36°C and the viscosity at 25°C is 6 mPa·s or less.

[0049] In the above-mentioned absorbent article, the difference between the viscosity of the lotion composition at 36°C and the viscosity at 25°C is within the specified range. Therefore, the lotion composition can easily exert uniform performance from the beginning of wearing to the middle of wearing, and can also exert the same performance in environments with different temperatures (for example, noon in low-latitude areas and winter in high-latitude areas).

[0050] [Method 8]

[0051] The absorbent article according to any one of aspects 1 to 7, wherein the (i) surfactant is mannitol erythritol lipid.

[0052] In the absorbent article, (i) the surfactant is mannose erythritol lipid, and thus the wearer's skin is effectively protected. It should be noted that the effect of mannose erythritol lipid is well known, and thus the description thereof is omitted in this specification.

[0053] [Method 9]

[0054] The absorbent article according to any one of aspects 1 to 8, wherein the (ii) hydrophobic component is a glyceryl fatty acid triester.

[0055] In the absorbent article, the (ii) hydrophobic component is triglyceride. Therefore, the detergent composition can be stably present due to the surface active effect of triglyceride, and can also exhibit the moisturizing effect of triglyceride.

[0056] [Method 10]

[0057] The absorbent article according to aspect 3, wherein the (iii) hydrophilic component further contains alcohol.

[0058] In the above-mentioned absorbent article, (iii) the hydrophilic component also contains alcohol, so the lotion composition can stably maintain other components dissolved in alcohol (such as components derived from pearls, etc.), and after the lotion composition contacts the wearer's skin, it is easy for the other components dissolved in alcohol to be quickly transferred to the wearer's skin.

[0059] [Method 11]

[0060] The absorbent article according to any one of aspects 1 to 10, wherein a mass per unit area of ​​the lotion composition disposed on the skin contacting surface is larger than a mass per unit area of ​​the lotion composition disposed on the non-skin contacting surface.

[0061] In the above-mentioned absorbent article, the unit area mass of the lotion composition arranged on the skin contacting surface is greater than the unit area mass of the lotion composition arranged on the non-skin contacting surface. Therefore, when the wearer's skin contacts the skin contacting surface of the liquid permeable sheet of the absorbent article, the lotion composition is more easily transferred to the wearer's skin.

[0062] [Method 12]

[0063] A lotion composition, which is a lotion composition for absorbent articles,

[0064] The above-mentioned lotion composition comprises:

[0065] (i) Glycolipid surfactants, which consist of one molecule of C bonded to one molecule of hexose n H 2n+2 O n (n is an integer of 4 to 6) and a hydroxy fatty acid; and

[0066] (ii) A hydrophobic component comprising at least one selected from the group consisting of glycerol fatty acid esters, polyglycerol fatty acid esters, propylene oxide and / or butylene oxide adducts of glycerol, and propylene oxide and / or butylene oxide adducts of polyglycerol.

[0067] The above-mentioned lotion composition has the same effects as in Embodiment 1.

[0068] [Method 13]

[0069] The detergent composition according to embodiment 12, wherein the detergent composition contains (i) the surfactant and (ii) the hydrophobic component at a ratio of 1.0 to 22.0% by mass and 78.0 to 99.0% by mass, respectively, relative to 100% by mass of the total of (i) the surfactant and (ii) the hydrophobic component.

[0070] The above-mentioned lotion composition has the same effect as that of Embodiment 2.

[0071] [Method 14]

[0072] The detergent composition according to embodiment 12 or 13, further comprising (iii) a hydrophilic component containing water.

[0073] The above lotion composition has the same effects as in Mode 3.

[0074] [Method 15]

[0075] The detergent composition according to any one of embodiments 12 to 14, wherein the detergent composition contains (i) a surfactant, (ii) a hydrophobic component, and (iii) a hydrophilic component at a ratio of 1.0 to 20.0 mass%, 78.0 to 98.9 mass%, and 0.1 to 2.0 mass%, respectively, relative to 100 mass% of the total of (i) a surfactant, (ii) a hydrophobic component, and (iii) a hydrophilic component.

[0076] The above lotion composition has the same effect as that of Mode 4.

[0077] The absorbent article and the detergent composition comprising the detergent composition of the present application will be described in detail below.

[0078] The absorbent article of the present application comprises a liquid-permeable sheet, a liquid-impermeable sheet, and an absorbent body therebetween, wherein the liquid-permeable sheet has a skin-contacting surface and a non-skin-contacting surface.

[0079] The liquid-permeable sheet contains a predetermined lotion composition on the skin contacting surface.

[0080] [Lotion composition]

[0081] In the absorbent article of the present application, the detergent composition contains the following components.

[0082] (i) Glycolipid surfactants, which consist of one molecule of C bonded to one molecule of hexose n H 2n+2 O n (n is an integer of 4 to 6) and a hydroxy fatty acid (hereinafter sometimes referred to as "(i) surfactant");

[0083] (ii) a hydrophobic component comprising at least one selected from the group consisting of glycerol fatty acid esters, polyglycerol fatty acid esters, propylene oxide and / or butylene oxide adducts of glycerol, and propylene oxide and / or butylene oxide adducts of polyglycerol (hereinafter sometimes referred to as "(ii) hydrophobic component").

[0084] Furthermore, the above-mentioned detergent composition may further contain the following components.

[0085] (iii) A hydrophilic component containing water (hereinafter sometimes referred to as "(iii) hydrophilic component").

[0086] [(i) Surfactant]

[0087] (i) Surfactants include mannoerythritol lipid (MEL), mannomannitol lipid (MML), mannosorbitol lipid (MSL), mannoarabinitol lipid (MAraL), and mannoribitol lipid (MRL). Among them, MEL is preferred.

[0088] MEL is a molecule in which one molecule of mannose, which is a hexose, and one molecule of erythritol, which is a sugar alcohol, are bonded via a glycosidic bond, and has a structure in which a hydroxy fatty acid and an acetyl group are introduced into the hydroxyl group of the part derived from mannose.

[0089] MEL has the following formula (1).

[0090]

[0091] In the formula, R 1 ~R 4 Each is independently hydrogen (-H), acetyl (-COCH3), or preferably C1-C36 , more preferably C3~C 12 Saturated fatty acid residues or unsaturated fatty acid residues. 1 ~R 4 At least one of them is an acetyl group, and at least one of the other is a C1-C 36 saturated fatty acid residues or unsaturated fatty acid residues.

[0092] R 1 and R 2 Each independently preferably is C1 to C 25 , more preferably C3~C 25 , more preferably C5~C 14 , and more preferably C8~C 12 Saturated fatty acid residues or unsaturated fatty acid residues. 3 and R 4 Both may be acetyl groups, or one may be an acetyl group and the other may be a hydrogen atom.

[0093] It should be noted that, in the present specification, mannose erythritol lipid (MEL) is a general term including MEL itself, its homologues and salts thereof.

[0094] MEL is generally produced by microorganisms. The method for producing MEL is well known, so the description here is omitted.

[0095] [(ii) Hydrophobic component]

[0096] (ii) The hydrophobic component is a hydrophobic component comprising at least one selected from the group consisting of glycerol fatty acid esters, polyglycerol fatty acid esters, propylene oxide and / or butylene oxide adducts of glycerol, and propylene oxide and / or butylene oxide adducts of polyglycerol.

[0097] Glycerol fatty acid ester is a monoester, diester or triester of monoglycerol and fatty acid, including glycerol fatty acid monoester, glycerol fatty acid diester and glycerol fatty acid triester. Glycerol fatty acid ester is preferably glycerol fatty acid diester or glycerol fatty acid triester, and more preferably glycerol fatty acid triester. This is from the viewpoint of making (ii) the hydrophobic component hydrophobic.

[0098] The fatty acid is preferably C 10 ~C 22 Fatty acids, and more preferably C 12 ~C 18 Fatty acids. The fatty acids may be saturated or unsaturated. Specific examples of the fatty acids include capric acid, lauric acid, tridecanoic acid, myristic acid, pentadecanoic acid, palmitic acid, heptadecanoic acid, stearic acid, isostearic acid, nonadecanoic acid, arachidic acid and behenic acid (the above are saturated fatty acids), and oleic acid (the above are unsaturated fatty acids).

[0099] As the polyglycerol fatty acid ester, preferably, one obtained by ester-bonding polyglycerol having an average degree of polymerization of 2 to 15 and fatty acid. The fatty acid is as described above.

[0100] In this specification, the average degree of polymerization of polyglycerol refers to the degree of polymerization calculated from its hydroxyl value.

[0101] In the polyglycerol fatty acid ester, preferably 40 mol% or more, more preferably 60 mol% or more, and further preferably 80 mol% or more of the hydroxyl groups of the polyglycerol form ester bonds with fatty acids. This is for the purpose of making the (ii) hydrophobic component hydrophobic.

[0102] In the propylene oxide and / or butylene oxide adduct of glycerol, the average number of moles of propylene oxide and / or butylene oxide added is preferably 2 to 30, more preferably 4 to 24, and even more preferably 8 to 20.

[0103] It should be noted that the above-mentioned propylene oxide and / or butylene oxide adduct of glycerol is a concept including propylene oxide adduct of glycerol, butylene oxide adduct of glycerol, and propylene oxide and butylene oxide adduct of glycerol.

[0104] Among the propylene oxide and / or butylene oxide adducts of the polyglycerol, examples of the polyglycerol include polyglycerols preferably having an average degree of polymerization of 2 to 30, and more preferably 2 to 15. Preferred examples are as described above.

[0105] In the propylene oxide and / or butylene oxide adduct of the polyglycerol, the average number of moles of propylene oxide and / or butylene oxide added is preferably 2 to 30, more preferably 4 to 24, and even more preferably 8 to 20.

[0106] [(iii) Hydrophilic component]

[0107] The desired component of the detergent composition, namely, the (iii) hydrophilic component, includes water. Examples of the water include deionized water. The (iii) hydrophilic component may consist of water alone.

[0108] Furthermore, the (iii) hydrophilic component may include a water-soluble organic solvent miscible with water.

[0109] Examples of the water-soluble organic solvent include alcohols (e.g., methanol, ethanol, propanol, butanol), glycols (e.g., ethylene glycol, propylene glycol, e.g., 1,2-propylene glycol, 1,3-propylene glycol, butanediol, e.g., 1,3-butanediol, 1,4-butanediol, 2,3-butanediol), glycerol, polyglycerol, ethylene oxide adducts of glycerol or polyglycerol, ketones (e.g., acetone, methyl ethyl ketone), etc., preferably alcohols, particularly preferably ethanol.

[0110] The detergent composition may contain the water-soluble organic solvent within a range that is miscible with water at body temperature (36° C.) when the absorbent article is worn, or within a range that is miscible with water at room temperature (25° C.).

[0111] Examples of the polyglycerol include polyglycerols preferably having an average degree of polymerization of 2 to 30, and more preferably 2 to 15. Specific examples of the polyglycerol include diglycerol, tetraglycerol, hexaglycerol, octaglycerol, and decaglycerol.

[0112] In the ethylene oxide adduct of glycerol or polyglycerol, the average number of moles of ethylene oxide added is preferably 2 to 30, more preferably 4 to 24, and even more preferably 8 to 20.

[0113] The above-mentioned lotion composition can be an oil-in-water type or water-in-oil type emulsion (e.g., microemulsion, nanoemulsion, etc.) obtained by micellizing (ii) a hydrophobic component or (iii) a hydrophilic component in (iii) a hydrophilic component or (ii) a hydrophobic component using (i) a surfactant. The above-mentioned lotion composition is preferably an oil-in-water type emulsion (e.g., microemulsion, nanoemulsion, etc.) obtained by micellizing (iii) a hydrophilic component in (ii) a hydrophobic component using (i) a surfactant. Thus, (i) a surfactant, (ii) a hydrophobic component, and (iii) a hydrophilic component can act on the skin of the wearer as needed, and the lotion composition is easy to maintain a desired viscosity and easy to exert its function.

[0114] In the above-mentioned lotion composition, the (i) surfactant and (ii) hydrophobic component are preferably contained at a ratio of 1.0 to 22.0 mass % and 78.0 to 99.0 mass %, more preferably at a ratio of 3.0 to 18.7 mass % and 81.3 to 97.0 mass %, and further preferably at a ratio of 5.0 to 16.5 mass % and 83.5 to 95.0 mass %, respectively, relative to a total of 100 mass % of (i) surfactant and (ii) hydrophobic component. Thus, the lotion composition easily maintains a desired viscosity, and as a result, it is not easy to move before the absorbent article is used and is easily transferred to the wearer's skin from the beginning of wearing, and it is easy to protect the wearer's skin.

[0115] When the detergent composition further contains (iii) a hydrophilic component, the detergent composition contains (i) a surfactant, (ii) a hydrophobic component and (iii) a hydrophilic component in an amount of preferably 1.0 to 20.0% by mass, 78.0 to 98.9% by mass and 0.1 to 2.0% by mass, respectively, more preferably 3.0 to 17.0% by mass, 81.3 to 96.7% by mass and 0.3 to 1.7% by mass, and even more preferably 5.0 to 15.0% by mass, 83.5 to 94.5% by mass and 0.5 to 1.5% by mass, respectively, based on 100% by mass of the total of (i) a surfactant, (ii) a hydrophobic component and (iii) a hydrophilic component. As a result, the lotion composition easily forms an emulsion (e.g., microemulsion, nanoemulsion, etc.), and the lotion composition easily maintains a desired viscosity. As a result, it is difficult to move before using the absorbent article and is easily transferred to the wearer's skin from the beginning of wearing, thereby easily protecting the wearer's skin.

[0116] The above-mentioned lotion composition has a viscosity of preferably 15 to 40 mPa·s, more preferably 16 to 35 mPa·s, and further preferably 17 to 30 mPa·s at room temperature (25°C). Thus, the lotion composition is not easily transferred to the wearer's skin before use of the absorbent article and is easily transferred to the wearer's skin from the beginning of wearing.

[0117] The above-mentioned lotion composition has a viscosity of preferably 15 to 30 mPa·s, more preferably 16 to 27 mPa·s, and further preferably 17 to 25 mPa·s at 36° C. Thus, after the lotion composition moves to the skin of the wearer, it is difficult to move from the skin of the wearer to other parts, such as the inside of the absorbent article, even when it is warmed by the body temperature of the wearer.

[0118] The difference between the viscosity at 36°C and the viscosity at 25°C of the above-mentioned lotion composition is preferably 6 mPa·s or less, preferably 5 mPa·s or less, and more preferably 4 mPa·s or less. Thus, the lotion composition can easily exhibit uniform performance from the beginning of wearing to during wearing, and can also exhibit the same performance in environments with different temperatures (e.g., daytime in low-latitude areas and winter in high-latitude areas).

[0119] In the present specification, the viscosity of the lotion composition can be measured using the following equipment.

[0120] Equipment: Made by Thermo Fisher SCIENTIFIC

[0121] HAAKE RheoStress1

[0122] Sensor: Coneφ60mm, 1°angle C60 / 1

[0123] Shear speed: 100.0 (1 / s)

[0124] ·Measurement time: 30 seconds

[0125] Sampling: 100, calculate the average

[0126] [Other ingredients]

[0127] The lotion composition of the present application may contain other ingredients within the range in which the effects thereof are exerted.

[0128] Examples of the other components include components derived from pearls.

[0129] The pearl-derived component is not particularly limited as long as it is derived from a shellfish having a nacre layer. Examples of the shellfish having a nacre layer include marine shellfish such as Pinctada martensii, Pinctada edulis (black pearls), Pinctada maxima (South Sea pearls), Pinctada penguin (Pearl oysters), abalone, pond clams (freshwater pearls), and mussels (freshwater pearls).

[0130] Examples of the pearl-derived component include ground products, i.e., powders, of the shellfish having nacre, and organic matter from the shellfish having nacre, such as protein conchiolin, and peptides and amino acids derived from the organic matter, such as hydrolyzed conchiolin, etc. The peptides and amino acids may be in liquid form.

[0131] Examples of the other components include fragrances and solvents.

[0132] Examples of the other components include silicone oil, silicone, and silicone-based resins.

[0133] Examples of the other components include antioxidants such as BHT (2,6-di-tert-butyl-p-cresol), BHA (butylated hydroxyanisole), and propyl gallate.

[0134] Examples of the other ingredients include vitamins, such as natural vitamins or synthetic vitamins. Examples of the vitamins include water-soluble vitamins, such as vitamin B group, such as vitamin B1, vitamin B2, vitamin B3, vitamin B5, vitamin B6, vitamin B7, vitamin B9, vitamin B 12 Etc., Vitamin C.

[0135] Examples of the vitamins include fat-soluble vitamins such as vitamin A group, vitamin D group, vitamin E group, and vitamin K group.

[0136] In addition, the above vitamins also include their derivatives.

[0137] Examples of the other components include amino acids such as alanine, arginine, lysine, histidine, proline, hydroxyproline, and peptides.

[0138] Examples of the other components include zeolites, such as natural zeolites, such as analcime, chabazite, heulandite, natrolite, thomsonite, and thomosonite, and synthetic zeolites.

[0139] Examples of the other components include cholesterol, hyaluronic acid, lecithin, and ceramide.

[0140] Examples of the other components include pharmaceutical agents such as skin astringents, anti-pimple agents, anti-wrinkle agents, anti-cellulite agents, whitening agents, antibacterial agents, and antifungal agents.

[0141] Examples of the skin astringent include zinc oxide, aluminum sulfate, tannic acid, and oil-soluble skin astringents such as oil-soluble polyphenols. Examples of the oil-soluble polyphenols include natural oil-soluble polyphenols such as Phellodendron amurense extract, Forsythia suspensa extract, Sesame extract, Chamomile extract, Burdock extract, Salvia splendens extract, Bodhi tree extract, Western bodhi tree extract, Birch extract, Fir extract, Sage extract, Salvia splendens extract, Walnut extract, Hibiscus extract, Loquat leaf extract, Bodhi tree extract, Hops extract, Horse chestnut extract, Coix seed extract, and the like.

[0142] Examples of the anti-pimple agent include salicylic acid, benzoyl peroxide, resorcinol, sulfur, erythromycin, zinc, and the like.

[0143] Examples of the anti-wrinkle agent include lactic acid, salicylic acid, salicylic acid derivatives, glycolic acid, phytic acid, lipoic acid, and lysophosphatidic acid.

[0144] Examples of the anti-subcutaneous cellulite agent include xanthine compounds such as aminophylline, caffeine, theophylline, and theobromine.

[0145] Examples of the whitening agent include niacinamide, kojic acid, arbutin, glucosamine and its derivatives, phytosterol derivatives, ascorbic acid and its derivatives, mulberry extract, and placenta extract.

[0146] In addition, examples of the other ingredients include anti-inflammatory ingredients, pH adjusters, antibacterial agents, moisturizers, fragrances, pigments, dyes, pigments, plant extracts, etc. Examples of the anti-inflammatory ingredients include natural anti-inflammatory agents such as peony, scutellaria, forsythia, chamomile, licorice, peach leaf, mugwort, and perilla extracts, and synthetic anti-inflammatory agents such as allantoin and dipotassium glycyrrhizinate.

[0147] Examples of the pH adjuster include substances for maintaining weak acidity of the skin, such as malic acid, succinic acid, citric acid, tartaric acid, and lactic acid.

[0148] As said pigment, titanium oxide is mentioned, for example.

[0149] The above-mentioned other components may have water-soluble, hydrophilic, hydrophobic (lipophilic) or oil-soluble properties.

[0150] In the absorbent article of the present application, the detergent composition contains at least three components, namely, (i) a surfactant, (ii) a hydrophobic component, and (iii) a hydrophilic component. Therefore, the above-mentioned other components can be appropriately retained.

[0151] Specifically, the above-mentioned detergent composition can hold other water-soluble components in (iii) the hydrophilic component by dissolving them, or in (ii) the hydrophobic component by forming micelles using (i) a surfactant.

[0152] Furthermore, the above-mentioned lotion composition can be held in (iii) the hydrophilic component and (ii) the hydrophobic component respectively by forming other hydrophilic and hydrophobic components into micelles using (i) a surfactant.

[0153] Furthermore, the lotion composition can hold other oil-soluble components in (ii) the hydrophobic component by dissolving them, or in (iii) the hydrophilic component by forming micelles using (i) the surfactant.

[0154] It should be noted that (iii) the hydrophilic component is an optional component of the lotion composition.

[0155] In the absorbent article of the present application, the liquid permeable sheet has a lotion composition on its skin contact surface. The lotion composition can be arranged on the skin contact surface of the liquid permeable sheet without particular limitation. For example, a plurality of linear lotion compositions can be arranged in a manner that is spaced apart in the width direction of the absorbent article and extends along the length direction of the absorbent article. In addition, a plurality of dot-shaped lotion compositions can be arranged in a Z shape on the skin contact surface of the liquid permeable sheet.

[0156] The absorbent article of the present application can preferably be 3.0 to 8.0 g / m 2 , and more preferably 4.0 to 6.0 g / m 2 The above-mentioned lotion composition has a mass per unit area.

[0157] In the absorbent article of the present application, the mass per unit area of ​​the lotion composition disposed on the skin contacting surface of the liquid permeable sheet is preferably greater than the mass per unit area of ​​the lotion composition disposed on the non-skin contacting surface of the liquid permeable sheet. Thus, when the wearer's skin contacts the skin contacting surface of the liquid permeable sheet of the absorbent article, the lotion composition is more easily transferred to the wearer's skin.

[0158] The absorbent article of the present application is not particularly limited as long as it is an article that contacts the wearer's skin, and examples thereof include disposable diapers, incontinence pads, disposable pants, sanitary napkins, panty liners, pet diapers, and pet sheets.

[0159] Example

[0160] Hereinafter, the present application will be described with reference to examples, but the present application is not limited to these examples.

[0161] [Production Example 1]

[0162] 10 parts by mass of MEL (CERAMERA-HG manufactured by Toyobo Co., Ltd.) as a surfactant (i), 89 parts by mass of tri(caprylic acid / capric acid)glyceride (Panasate (trademark) 810S manufactured by NOF Corporation) as a hydrophobic component (ii), and 1 part by mass of deionized water as a hydrophilic component (iii) were mixed at 40°C to prepare a detergent composition No. 1. When the detergent composition No. 1 was left to stand at room temperature (25°C) for 24 hours, the detergent composition No. 1 had a transparent property. It is believed that this is because the detergent composition No. 1 formed a water-in-oil type microemulsion.

[0163] When the viscosity of Lotion Composition No. 1 was measured by the method described in the present specification, Lotion Composition No. 1 had a viscosity of 22 mPa·s at 36°C and a viscosity of 19 mPa·s at 25°C.

[0164] Lotion composition No. 1 was mixed at 5.0 g / m 2 The weight per unit area of ​​the detergent composition was applied on a PET release film (PET38×1-B, 100 mm×100 mm, manufactured by NIPPA) to prepare a plurality of samples of detergent composition-coated film No. 1.

[0165] [Production Example 2]

[0166] 10 parts by mass of MEL (CERAMERA-HG manufactured by Toyobo Co., Ltd.) as a surfactant (i), 89 parts by mass of tri(caprylic acid / capric acid)glyceryl (Panasate (trademark) 810S manufactured by NOF Corporation) as a hydrophobic component (ii), and 0.7 parts by mass of deionized water and 0.3 parts by mass of ethanol as (iii) a hydrophilic component were mixed at 40° C. to prepare a detergent composition No. 2. When the detergent composition No. 2 was left to stand at room temperature (25° C.) for 24 hours, the detergent composition No. 2 had a transparent property.

[0167] [Comparative Production Example 1]

[0168] According to the method described in Japanese Patent Application No. 10-509896, lotion composition No. 3 was prepared. Specifically, 65 parts by mass of a hydrocarbon (Parleam 6 manufactured by NOF Corporation) as an emollient and 35 parts by mass of stearyl alcohol (NAA (trademark)-45 manufactured by NOF Corporation adjusted to a melting point of 40° C.) as an inertizing agent were mixed while being heated to about 80° C. to prepare lotion composition No. 3.

[0169] The heated and liquefied detergent composition No. 3 was heated at 40 g / m 2 and 10g / m 2 The weight per unit area of ​​the detergent composition was coated on a PET release film (PET38×1-B, 100 mm×100 mm, manufactured by NIPPA) to prepare a plurality of samples of detergent composition-coated films No. 2 and No. 3, respectively.

[0170] [Example 1 and Comparative Examples 1 and 2]

[0171] In a constant temperature room at 25°C, artificial skin (PBZ13001, 50 mm×50 mm, manufactured by IDEATEX JAPAN Co., Ltd.) heated to 40°C was placed on each of the lotion composition coated films No. 1 to No. 3, and a 35 gf / cm 2 A weight was placed in a pressure manner, and the relationship between time and the amount of the detergent composition transferred to the PET film was tracked.

[0172] Specifically, the mass per unit area when the lotion composition is applied to the artificial skin is recorded as BW0 (g / m 2 ), the initial mass of the artificial skin is recorded as m0 (g), and the mass of the artificial skin after t hours from the time of placing the weight is recorded as m t (g), the transfer rate of the detergent composition after t hours is calculated by the following formula: TR t (%):

[0173] TRt (%) = 100 × 400 × (m t -m0) / BW0

[0174] The results are shown in Figure 1 .

[0175] It should be noted that the transfer rates TR of the detergent composition coated films No. 1 to No. 3 were different after the elapse of time. t The values ​​(%) are values ​​measured using different samples.

[0176] according to Figure 1 , detergent composition No. 1 exhibited a certain transferability from the initial stage, that is, before the temperature of detergent composition No. 1 was raised to 40°C, and exhibited a certain transferability even when the temperature exceeded 40°C.

[0177] On the other hand, the lotion compositions No. 2 and No. 3 tended to have low initial transfer rates, that is, the transfer rates of the lotion compositions were low until the temperature rose.

Claims

1. An absorbent article, characterized in that: The absorbent article comprises a liquid permeable sheet, a liquid impermeable sheet and an absorbent body therebetween, wherein the liquid permeable sheet has a skin contacting surface and a non-skin contacting surface. The liquid-permeable sheet comprises a lotion composition on the skin-contacting surface, wherein the lotion composition comprises: (i) Glycolipid surfactants, which consist of one molecule of C bonded to one molecule of hexose n H 2n+2 O n A molecule obtained from a sugar alcohol and a hydroxy fatty acid is formed, wherein n is an integer of 4 to 6; and (ii) a hydrophobic component comprising at least one selected from the group consisting of glycerol fatty acid esters, polyglycerol fatty acid esters, propylene oxide and / or butylene oxide adducts of glycerol, and propylene oxide and / or butylene oxide adducts of polyglycerol, The detergent composition does not contain a hydrophilic component, and contains (i) a surfactant and (ii) a hydrophobic component at a ratio of 1.0 to 22.0 mass % and 78.0 to 99.0 mass % respectively, relative to 100 mass % of the total of (i) a surfactant and (ii) a hydrophobic component; or the detergent composition further contains (iii) a hydrophilic component containing water, and contains (iii) a hydrophilic component at a ratio of 0.1 to 2.0 mass % relative to 100 mass % of the total of (i) a surfactant, (ii) a hydrophobic component and (iii) a hydrophilic component, The lotion composition is constructed in a manner that is transferred to the skin of the wearer.

2. The absorbent article according to claim 1, wherein The lotion composition has a viscosity of 15 to 40 mPa·s at 25°C.

3. The absorbent article according to claim 1 or 2, wherein: The lotion composition has a viscosity of 15 to 30 mPa·s at 36°C.

4. The absorbent article according to claim 1 or 2, wherein: The difference between the viscosity of the detergent composition at 36° C. and the viscosity at 25° C. is 6 mPa·s or less.

5. The absorbent article according to claim 1 or 2, wherein: (i) The surfactant is mannose erythritol lipid.

6. The absorbent article according to claim 1 or 2, wherein: (ii) The hydrophobic component is triglyceride of fatty acid.

7. The absorbent article according to claim 1 or 2, wherein: (iii) The hydrophilic component further includes alcohol.

8. The absorbent article according to claim 1 or 2, wherein: The mass per unit area of ​​the lotion composition disposed on the skin contacting surface is greater than the mass per unit area of ​​the lotion composition disposed on the non-skin contacting surface.

9. A lotion composition, characterized in that The present invention is a detergent composition for an absorbent article having an absorbent body, the detergent composition comprising: (i) Glycolipid surfactants, which consist of one molecule of C bonded to one molecule of hexose n H 2n+2 O n A molecule obtained from a sugar alcohol and a hydroxy fatty acid is formed, wherein n is an integer of 4 to 6; and (ii) a hydrophobic component comprising at least one selected from the group consisting of glycerol fatty acid esters, polyglycerol fatty acid esters, propylene oxide and / or butylene oxide adducts of glycerol, and propylene oxide and / or butylene oxide adducts of polyglycerol, The detergent composition does not contain a hydrophilic component, and contains (i) a surfactant and (ii) a hydrophobic component at a ratio of 1.0 to 22.0 mass % and 78.0 to 99.0 mass % respectively, relative to 100 mass % of the total of (i) a surfactant and (ii) a hydrophobic component; or the detergent composition further contains (iii) a hydrophilic component containing water, and contains (iii) a hydrophilic component at a ratio of 0.1 to 2.0 mass % relative to 100 mass % of the total of (i) a surfactant, (ii) a hydrophobic component and (iii) a hydrophilic component, In the absorbent article, the lotion composition is configured to be transferred to the skin of the wearer.

10. The lotion composition according to claim 9, wherein The lotion composition has a viscosity of 15 to 40 mPa·s at 25°C.

11. The lotion composition according to claim 9 or 10, wherein The lotion composition has a viscosity of 15 to 30 mPa·s at 36°C.

12. The lotion composition according to claim 9 or 10, wherein The difference between the viscosity of the detergent composition at 36° C. and the viscosity at 25° C. is 6 mPa·s or less.

13. The lotion composition according to claim 9 or 10, wherein (i) The surfactant is mannose erythritol lipid.

14. The lotion composition according to claim 9 or 10, wherein (ii) The hydrophobic component is triglyceride of fatty acid.

15. The lotion composition according to claim 9 or 10, wherein (iii) The hydrophilic component further includes alcohol.

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