CN112870426A - Absorbent article comprising lotion composition and the lotion composition - Google Patents

Absorbent article comprising lotion composition and the lotion composition Download PDF

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CN112870426A
CN112870426A CN202011358216.7A CN202011358216A CN112870426A CN 112870426 A CN112870426 A CN 112870426A CN 202011358216 A CN202011358216 A CN 202011358216A CN 112870426 A CN112870426 A CN 112870426A
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lotion composition
absorbent article
mass
surfactant
fatty acid
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仓田有里
和田一郎
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Unicharm Corp
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Unicharm Corp
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/20Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42Use of materials characterised by their function or physical properties

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  • Chemical & Material Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Cosmetics (AREA)
  • Medicinal Preparation (AREA)
  • Materials For Medical Uses (AREA)

Abstract

The present invention relates to an absorbent article comprising a lotion composition and the lotion composition. Provided is an absorbent article provided with a lotion composition which is not easily moved before the absorbent article is used, is easily transferred to the skin of a wearer from the beginning of wearing, and easily protects the skin of the wearer. An absorbent article characterized in that a liquid-permeable sheet is provided with a lotion composition on its skin contact surface, the lotion composition comprising: (i) a glycolipid surfactant comprising 1 molecule of hexose to which 1 molecule of C is glycosidically bondednH2n+ 2On(n is an integer of 4 to 6) a molecule derived from a sugar alcohol and a hydroxy fatty acid; and (ii) hydrophobicityAnd (b) a component (a) containing at least 1 selected from the group consisting of a glycerin fatty acid ester, a polyglycerin fatty acid ester, a propylene oxide and/or butylene oxide adduct of glycerin, and a propylene oxide and/or butylene oxide adduct of polyglycerin.

Description

Absorbent article comprising lotion composition and the lotion composition
Technical Field
The present application relates to absorbent articles comprising a lotion composition and the lotion composition.
Background
Absorbent articles provided with a lotion composition are known.
For example, patent document 1 discloses a lotion composition for the purpose of suppressing the adhesion of excrement to the skin of a wearer, and an absorbent article provided with the lotion composition. The lotion composition described in patent document 1 has the following structure.
A lotion composition characterized by being a lotion composition which is applied to an absorbent article worn by a wearer and which is semi-solid or solid at 20 ℃, said lotion composition comprising: (A) 20-95 wt% of an emollient having a plastic or fluid consistency at 20 ℃, comprising less than 5 wt% moisture relative to the total amount of the emollient, the emollient comprising one selected from the group consisting of petroleum based emollients, alkyl ethoxylate emollients and mixtures thereof, said petroleum comprising a hydrocarbon or mixture of hydrocarbons having a chain length of 16-32 carbon atoms; and (B)5 to 80 wt% of an immobilizing agent capable of immobilizing an emollient on the surface of a topsheet of an absorbent article treated with the lotion composition, the immobilizing agent having a melting point of 50 to 150 ℃ and comprising a component selected from the group consisting of C14-C22Fatty alcohols and C12-C22One of the fatty acids.
In addition, it has been studied to suppress irritation to the skin by coating synthetic fibers with a fiber treatment agent. For example, patent document 2 discloses that hydrophilic synthetic fibers are obtained by attaching a fiber treatment agent to the surface of synthetic fibers, the fiber treatment agent comprising: (a) a surfactant which is at least 1 selected from the group consisting of surfactants having a lipopeptide structure represented by surface active peptides (surfactants), and surfactants of glycolipids represented by sophorolipids, rhamnolipids, and mannosylerythritol lipids; (b) at least 1 compound selected from the group consisting of (poly) glycerol, (poly) glycerol fatty acid ester and alkylene oxide adduct of (poly) glycerol; and (c) a lactate, wherein the component (a) is contained in an amount of 2.5 to 50 mass% based on 100 mass% of the total mass of the components (a) to (c).
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2009 and 137964
Patent document 2: japanese patent laid-open No. 2012 and 57275
Disclosure of Invention
Problems to be solved by the invention
In order to suppress permeation of the lotion composition into the interior of the absorbent article, the lotion composition described in patent document 1 contains an immobilizing agent capable of immobilizing an emollient having a plastic or fluid consistency at 20 ℃.
Therefore, the lotion composition described in patent document 1 is difficult to transfer to the skin of the wearer before the immobilizing agent in the lotion composition melts at the beginning of wearing of the absorbent article, and difficult to protect the skin of the wearer at the beginning of wearing of the absorbent article.
Further, the fiber treatment agent described in patent document 2 does not transfer to the skin of the wearer.
Accordingly, an object of the present invention is to provide an absorbent article provided with a lotion composition which is less likely to move before the absorbent article is used, and which is easily transferred from the beginning of wearing to the skin of a wearer, thereby easily protecting the skin of the wearer.
Means for solving the problems
The present applicant has found 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 contact surface and a non-skin contact surface, and the liquid-permeable sheet has a lotion composition on the skin contact surface, the lotion composition comprising: (i) a glycolipid surfactant comprising 1 molecule of hexose to which 1 molecule of C is glycosidically bondednH2n+2On(n is an integer of 4 to 6) a molecule derived from a sugar alcohol and a hydroxy fatty acid; and (ii) a hydrophobic component comprising propylene oxide and/or butylene oxide addition selected from the group consisting of glycerol fatty acid esters, polyglycerol fatty acid esters, and glycerolAnd a propylene oxide and/or butylene oxide adduct of polyglycerin.
ADVANTAGEOUS EFFECTS OF INVENTION
The lotion composition in the absorbent article of the present application is not easily moved before the absorbent article is used and easily transferred to the skin of the wearer from the beginning of wearing, and easily protects the skin of the wearer.
Drawings
Fig. 1 is a graph for explaining the results of example 1 and comparative examples 1 and 2.
Detailed Description
Specifically, the present application relates to the following embodiments.
[ means 1]
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 contact surface and a non-skin contact surface,
the liquid-permeable sheet is provided with a lotion composition on the skin contact surface, the lotion composition comprising:
(i) a glycolipid surfactant comprising 1 molecule of hexose to which 1 molecule of C is glycosidically bondednH2n+2On(n is an integer of 4 to 6) a molecule derived from a sugar alcohol and a hydroxy fatty acid; and
(ii) a hydrophobic component containing at least 1 selected from the group consisting of glycerin fatty acid ester, polyglycerin fatty acid ester, propylene oxide and/or butylene oxide adduct of glycerin, and propylene oxide and/or butylene oxide adduct of polyglycerin.
The absorbent article is provided with a lotion composition on the skin-contacting surface of the liquid-permeable sheet, the lotion composition containing a predetermined (i) surfactant and a predetermined (ii) hydrophobic component. Therefore, the lotion composition can have a predetermined viscosity at room temperature (25 ℃), and the lotion composition is less likely to migrate into the absorbent article before the absorbent article is used.
Further, the lotion composition can have a predetermined viscosity at room temperature (25 ℃), and the lotion composition can be easily transferred to the skin of the wearer even before the lotion composition is warmed by the body temperature of the wearer at the beginning of wearing the absorbent article.
Further, the above lotion composition contains (i) a surfactant, and therefore (i) a surfactant can protect the skin of a wearer.
Further, since the lotion composition contains (i) a surfactant and (ii) a hydrophobic component, the lotion composition can retain other components having properties such as water solubility, hydrophilicity, hydrophobicity (lipophilicity), and oil solubility. For example, the lotion composition can be held in the (ii) hydrophobic component by dissolving the other component having oil solubility, and can be held in the (ii) hydrophobic component by micellizing the other component having hydrophobicity (lipophilicity), water solubility or hydrophilicity with the (i) surfactant as necessary.
As described above, in the absorbent article, the lotion composition is not easily moved before the absorbent article is used, and is easily transferred to the skin of the wearer from the beginning of wearing, and the skin of the wearer is easily protected.
[ means 2]
The absorbent article according to mode 1, wherein the lotion composition contains the (i) surfactant and the (ii) hydrophobic component at a ratio of 1.0 to 22.0% by mass and 78.0 to 99.0% by mass, respectively, with respect to 100% by mass of the total of the (i) surfactant and the (ii) hydrophobic component.
In the absorbent article, since the lotion composition contains (i) the surfactant and (ii) the hydrophobic component at a predetermined mass ratio, the lotion composition is less likely to move before the absorbent article is used, is likely to transfer from the beginning of wearing to the skin of the wearer, and is likely to protect the skin of the wearer.
[ means 3]
The absorbent article according to mode 1 or 2, wherein the lotion composition further comprises (iii) an aqueous hydrophilic component.
In the absorbent article, since the lotion composition contains the predetermined hydrophilic component (iii), the viscosity of the lotion composition can be easily adjusted to a predetermined range.
In the absorbent article, the lotion composition contains the predetermined hydrophilic component (iii), and therefore, the other component having water solubility can be held in the hydrophilic component (iii) by dissolving the other component having water solubility, and the other component having hydrophilicity can be held in the hydrophilic component (iii) by micellizing the other component having hydrophilicity with the surfactant (i) as necessary. As a result, the lotion composition can easily transfer other components having water solubility or hydrophilicity to the skin of the wearer quickly after contacting the skin of the wearer.
[ means 4]
The absorbent article according to any one of aspects 1 to 3, wherein the lotion composition contains the surfactant (i), the hydrophobic component (ii), and the hydrophilic component (iii) at a ratio of 1.0 to 20.0 mass%, 78.0 to 98.9 mass%, and 0.1 to 2.0 mass%, respectively, with respect to 100 mass% of the total of the surfactant (i), the hydrophobic component (ii), and the hydrophilic component (iii).
In the absorbent article, since the lotion composition contains (i) the surfactant, (ii) the hydrophobic component and (iii) the hydrophilic component at a predetermined mass ratio, the lotion composition is less likely to move before the absorbent article is used, is easily transferred from the beginning of wearing to the skin of the wearer, and is likely to protect the skin of the wearer.
[ means 5]
The absorbent article according to any one of aspects 1 to 4, wherein the lotion composition has a viscosity of 15 to 40 mPas at 25 ℃.
In the absorbent article, the lotion composition has a predetermined viscosity at room temperature (25 ℃), and therefore, the lotion composition is not easily moved before the absorbent article is used and is easily transferred from the beginning of wearing to the skin of the wearer.
[ means 6]
The absorbent article according to any one of aspects 1 to 5, wherein the lotion composition has a viscosity of 15 to 30 mPas at 36 ℃.
In the absorbent article, the lotion composition has a predetermined viscosity at 36 ℃, and therefore, even when the lotion composition is warmed by the body temperature of the wearer after moving to the skin of the wearer, the lotion composition is less likely to move from the skin of the wearer to other parts, for example, the inside of the absorbent article.
[ means 7]
The absorbent article according to any one of aspects 1 to 6, wherein the difference between the viscosity at 36 ℃ and the viscosity at 25 ℃ of the lotion composition is 6 mPas or less.
In the absorbent article, since the difference between the viscosity at 36 ℃ and the viscosity at 25 ℃ of the lotion composition is within a predetermined range, the lotion composition easily exhibits uniform performance from the beginning of wearing to wearing, and also exhibits the same performance in environments with different temperatures (e.g., late morning in low latitudes and late winter in high latitudes).
[ means 8]
The absorbent article according to any one of aspects 1 to 7, wherein the surfactant (i) is a mannosylerythritol lipid.
In the above absorbent article, the surfactant (i) is a mannosylerythritol lipid, and therefore, the effect of protecting the skin of the wearer is high. The role of mannosylerythritol lipids is well known, and therefore, the description of the present specification is omitted.
[ means 9]
The absorbent article according to any one of aspects 1 to 8, wherein the (ii) hydrophobic component is a glycerin fatty acid triester.
In the absorbent article, since (ii) the hydrophobic component is triglyceride, the lotion composition can stably exist due to a surface active effect derived from triglyceride, and can exert a moisturizing effect derived from triglyceride.
[ means 10]
The absorbent article according to mode 3, wherein the (iii) hydrophilic component further comprises an alcohol.
In the above-mentioned absorbent article, the (iii) hydrophilic component further contains an alcohol, and therefore, the lotion composition can stably retain the other components (for example, components derived from pearl) dissolved in the alcohol, and the other components dissolved in the alcohol are easily transferred to the skin of the wearer quickly after the lotion composition contacts the skin of the wearer.
[ means 11]
The absorbent article according to any one of aspects 1 to 10, wherein the mass per unit area of the lotion composition disposed on the skin contact surface is larger than the mass per unit area of the lotion composition disposed on the non-skin contact surface.
In the absorbent article described above, the mass per unit area of the lotion composition disposed on the skin contact surface is larger than the mass per unit area of the lotion composition disposed on the non-skin contact surface, and therefore, when the skin of the wearer contacts the skin contact surface of the liquid-permeable sheet of the absorbent article, the lotion composition is more easily transferred to the skin of the wearer.
[ means 12]
A lotion composition for an absorbent article,
the lotion composition comprises:
(i) a glycolipid surfactant comprising 1 molecule of hexose to which 1 molecule of C is glycosidically bondednH2n+2On(n is an integer of 4 to 6) a molecule derived from a sugar alcohol and a hydroxy fatty acid; and
(ii) a hydrophobic component containing at least 1 selected from the group consisting of glycerin fatty acid ester, polyglycerin fatty acid ester, propylene oxide and/or butylene oxide adduct of glycerin, and propylene oxide and/or butylene oxide adduct of polyglycerin.
The above lotion composition has the same effect as in mode 1.
[ means 13]
The lotion composition according to mode 12, wherein the lotion composition comprises the (i) surfactant and the (ii) 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 the (i) surfactant and the (ii) hydrophobic component.
The above lotion composition has the same effect as in mode 2.
[ means 14]
The lotion composition according to mode 12 or 13, wherein the lotion composition further comprises (iii) an aqueous hydrophilic component.
The above lotion composition has the same effect as in mode 3.
[ means 15]
The lotion composition according to any one of aspects 12 to 14, wherein the lotion composition comprises the surfactant (i), the hydrophobic component (ii), and the hydrophilic component (iii) 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 the surfactant (i), the hydrophobic component (ii), and the hydrophilic component (iii).
The above lotion composition has the same effect as in mode 4.
The absorbent article and the lotion composition containing the lotion composition of the present application are described in detail below.
The absorbent article of the present application includes a liquid-permeable sheet having a skin contact surface and a non-skin contact surface, a liquid-impermeable sheet, and an absorbent body therebetween.
The liquid-permeable sheet contains a predetermined lotion composition on the skin contact surface.
[ lotion composition ]
In the absorbent article of the present application, the lotion composition contains the following components.
(i) A glycolipid surfactant comprising 1 molecule of hexose to which 1 molecule of C is glycosidically bondednH2n+2OnA molecule obtained from a sugar alcohol (n is an integer of 4 to 6) and a hydroxy fatty acid (hereinafter, sometimes referred to as a "surfactant");
(ii) a hydrophobic component containing at least 1 selected from the group consisting of a glycerin fatty acid ester, a polyglycerin fatty acid ester, a propylene oxide and/or butylene oxide adduct of glycerin, and a propylene oxide and/or butylene oxide adduct of polyglycerin (hereinafter sometimes referred to as "hydrophobic component").
The lotion composition may further contain the following components.
(iii) A hydrophilic component containing water (hereinafter sometimes referred to as "(iii) hydrophilic component").
[ (i) surfactant ]
Examples of the surfactant (i) include Mannitol Ester (MEL), mannose mannitol ester (MML), mannose sorbitol ester (MSL), mannose arabitol ester (MAraL), and mannose ribitol ester (MRL), and MEL is preferable.
MEL is a molecule in which mannose 1 molecules, which are 1 kind of hexose, and erythritol 1 molecules, which are 1 kind of sugar alcohol, are bonded to each other via a glycosidic bond, and has a structure in which a hydroxy fatty acid and an acetyl group are introduced into a hydroxyl group of a mannose-derived part.
MEL has the following formula (1).
Figure BDA0002803227920000081
In the formula, R1~R4Each independently hydrogen (-H), acetyl (-COCH)3) Or preferably C1~C36More preferably C3~C12A saturated fatty acid residue or an unsaturated fatty acid residue. R1~R4At least 1 of them being acetyl, the other at least 1 being C1~C36A saturated fatty acid residue or an unsaturated fatty acid residue.
R1And R2Are each independently preferably C1~C25More preferably C3~C25More preferably C5~C14And, more preferably C8~C12A saturated fatty acid residue or an unsaturated fatty acid residue. R3And R4Both may be acetyl groups, and further, one may be an acetyl group and the other may be a hydrogen atom.
In the present specification, mannosylerythritol lipids (MEL) is a generic term including MEL itself, its congeners and salts thereof.
MEL is typically produced by microorganisms. A method of manufacturing MEL is well known, and thus, a description thereof is omitted.
[ (ii) hydrophobic component ]
(ii) The hydrophobic component is a hydrophobic component containing at least 1 selected from the group consisting of glycerin fatty acid ester, polyglycerin fatty acid ester, propylene oxide and/or butylene oxide adduct of glycerin, and propylene oxide and/or butylene oxide adduct of polyglycerin.
The glycerol fatty acid ester is monoester, diester or triester of monoglyceride and fatty acid, and comprises glycerol fatty acid monoester, glycerol fatty acid diester and glycerol fatty acid triester. The glycerin fatty acid ester is preferably a glycerin fatty acid diester or a glycerin fatty acid triester, and more preferably a glycerin fatty acid triester. This is because the hydrophobic component (ii) is hydrophobic.
The fatty acid is preferably C10~C22Fatty acid, and more preferably C12~C18A fatty acid. The fatty acids may be saturated or unsaturated. Specific examples of the fatty acid include capric acid, lauric acid, tridecanoic acid, myristic acid, pentadecanoic acid, palmitic acid, margaric acid, stearic acid, isostearic acid, nonadecanoic acid, arachidic acid, behenic acid (the above is a saturated fatty acid), and oleic acid (the above is an unsaturated fatty acid).
The polyglycerin fatty acid ester is preferably obtained by ester-bonding a polyglycerin having an average polymerization degree of 2 to 15 with a fatty acid. The fatty acids are as described above.
In the present specification, the average polymerization degree of polyglycerol means the polymerization degree calculated from the hydroxyl value thereof.
The polyglycerin fatty acid ester is one in which an ester bond is formed with a fatty acid preferably at 40 mol% or more, more preferably at 60 mol% or more, and further preferably at 80 mol% or more of the hydroxyl groups of the polyglycerin. This is because the hydrophobic component (ii) is hydrophobic.
In the propylene oxide and/or butylene oxide adduct of glycerin, the average molar number of addition of propylene oxide and/or butylene oxide is preferably 2 to 30, more preferably 4 to 24, and further preferably 8 to 20.
The propylene oxide and/or butylene oxide adduct of glycerin is a concept including a propylene oxide adduct of glycerin, a butylene oxide adduct of glycerin, and a propylene oxide and butylene oxide adduct of glycerin.
Among the propylene oxide and/or butylene oxide adducts of the polyglycerin, the polyglycerin is preferably a polyglycerin having an average polymerization degree of 2 to 30, and more preferably 2 to 15. Preferably as described above.
In the adduct of propylene oxide and/or butylene oxide of polyglycerol, the average molar number of addition of propylene oxide and/or butylene oxide is preferably 2 to 30, more preferably 4 to 24, and still more preferably 8 to 20.
[ (iii) hydrophilic component ]
The hydrophilic component (iii) of the lotion composition contains water according to the desired ingredients. As the water, for example, deionized water can be cited. (iii) The hydrophilic component may consist of water only.
In addition, (iii) the hydrophilic component may comprise a water-miscible organic solvent.
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, butylene glycol, e.g., 1, 3-butylene glycol, 1, 4-butylene glycol, 2, 3-butylene glycol), glycerin, polyglycerin, ethylene oxide adducts of glycerin or polyglycerin, ketones (e.g., acetone, methyl ethyl ketone), and the like, and alcohols are preferable, and ethanol is particularly preferable.
The lotion composition can contain the above-mentioned water-soluble organic solvent in a range miscible with water at body temperature (36 ℃), a range miscible with water at room temperature (25 ℃), and the like, for example, when the absorbent article is worn.
The polyglycerin is preferably a polyglycerin having an average polymerization degree of 2 to 30, and more preferably 2 to 15. Specific examples of the polyglycerin include diglycerin, tetraglycerin, hexaglycerin, octaglycerin, decaglycerin, and the like.
In the ethylene oxide adduct of glycerin or polyglycerin, the average molar number of addition of ethylene oxide is preferably 2 to 30, more preferably 4 to 24, and further preferably 8 to 20.
The lotion composition may be an oil-in-water or water-in-oil emulsion (e.g., microemulsion, nanoemulsion, etc.) in which (ii) a hydrophobic component or (iii) a hydrophilic component is retained in (iii) a hydrophilic component or (ii) a hydrophobic component, which is micellized with (i) a surfactant. The lotion composition is preferably a water-in-oil emulsion (e.g., microemulsion, nanoemulsion, etc.) in which (iii) a hydrophilic component micellized with (i) a surfactant is retained in (ii) a hydrophobic component. Thus, the (i) surfactant, (ii) hydrophobic component, and (iii) hydrophilic component can act on the skin of the wearer as needed, and the lotion composition can easily maintain a desired viscosity and can easily exert its function.
In the above lotion composition, the (i) surfactant and the (ii) hydrophobic component are contained preferably in a ratio of 1.0 to 22.0% by mass and 78.0 to 99.0% by mass, more preferably in a ratio of 3.0 to 18.7% by mass and 81.3 to 97.0% by mass, respectively, and further preferably in a ratio of 5.0 to 16.5% by mass and 83.5 to 95.0% by mass, respectively, relative to 100% by mass of the total of the (i) surfactant and the (ii) hydrophobic component. As a result, the lotion composition is less likely to move before the absorbent article is used, is easily transferred from the beginning of wearing to the skin of the wearer, and is thus likely to protect the skin of the wearer.
When the lotion composition further contains (iii) a hydrophilic component, the lotion composition preferably contains (i) a surfactant, (ii) a hydrophobic component and (iii) a hydrophilic component in a ratio of 1.0 to 20.0 mass%, 78.0 to 98.9 mass% and 0.1 to 2.0 mass%, more preferably 3.0 to 17.0 mass%, 81.3 to 96.7 mass% and 0.3 to 1.7 mass%, respectively, and further preferably contains (i) a surfactant, (ii) a hydrophobic component and (iii) a hydrophilic component in a ratio of 5.0 to 15.0 mass%, 83.5 to 94.5 mass% and 0.5 to 1.5 mass%, respectively, relative to 100 mass% of the total of (i) a surfactant, (ii) a hydrophobic component and (iii) a hydrophilic component. As a result, the lotion composition is likely to form an emulsion (e.g., a microemulsion, a nanoemulsion, etc.), and the lotion composition tends to maintain a desired viscosity, and as a result, is less likely to move before the absorbent article is used, is likely to transfer to the skin of the wearer from the beginning of wearing, and is likely to protect the skin of the wearer.
The lotion composition has a viscosity of preferably 15 to 40 mPas, more preferably 16 to 35 mPas, and still more preferably 17 to 30 mPas at room temperature (25 ℃). Thus, the lotion composition is not easily moved before the absorbent article is used and is easily transferred to the wearer's skin from the beginning of wearing.
The lotion composition has a viscosity of preferably 15 to 30 mPas, more preferably 16 to 27 mPas, and further preferably 17 to 25 mPas at 36 ℃. Thus, the lotion composition is less likely to move from the skin of the wearer to other parts, for example, the inside of the absorbent article, even when warmed by the body temperature of the wearer after moving to the skin of the wearer.
The difference between the viscosity at 36 ℃ and the viscosity at 25 ℃ of the lotion composition is preferably 6 mPas or less, preferably 5 mPas or less, and more preferably 4 mPas or less. Thus, the lotion composition can easily exhibit uniform performance from the start of wearing to the time of wearing, and can exhibit the same performance even in environments of different temperatures (for example, daytime in low latitudes and winter in high latitudes).
In the present specification, the viscosity of the lotion composition can be measured using the following apparatus.
Equipment: manufactured by Thermo Fisher SCIENTIFIC
HAAKE RheoStress1
The sensor: cone phi 60mm, 1 degree angle C60/1
Shear rate: 100.0(1/s)
Measurement time: 30 seconds
Sampling: 100, calculating an average value
[ other ingredients ]
The lotion composition of the present application may contain other ingredients within the range exerting its effect.
As the other components, pearl-derived components can be mentioned.
The pearl-derived component is not particularly limited as long as it is derived from a shellfish having a pearl layer. Examples of the shellfish having a pearl layer include marine shellfish such as pinctada martensii, pinctada martensii (black pearl), pinctada maxima (south American pearl), penguin pearl oyster (horse pearl), abalone, mussel (freshwater pearl), and the like.
The pearl-derived component may be a pulverized product, i.e., a powder, of the shellfish having a pearl layer, and may be an organic substance of the shellfish having a pearl layer, for example, a protein conchiolin, a peptide derived from the organic substance, an amino acid, for example, a hydrolyzed conchiolin, and the like. The above-mentioned peptide, amino acid and the like may be in a liquid state.
Examples of the other components include a perfume and a solvent.
Examples of the other component include silicone oil, silicone resin, and the like.
Examples of the other components include antioxidants such as BHT (2, 6-di-tert-butyl-p-cresol), BHA (butylated hydroxyanisole), and propyl gallate.
Examples of the other components include vitamins, such as natural vitamins and synthetic vitamins. Examples of the vitamins include water-soluble vitamins, e.g., vitamin B group, e.g., vitamin B1Vitamin B2Vitamin B3Vitamin B5Vitamin B6Vitamin B7Vitamin B9Vitamin B12Etc., vitamin C.
Examples of the vitamins include fat-soluble vitamins, such as vitamin a group, vitamin D group, vitamin E group, and vitamin K group.
In addition, the vitamins mentioned above also include their derivatives.
Examples of the other components include amino acids such as alanine, arginine, lysine, histidine, proline, hydroxyproline, and peptides.
Examples of the other components include zeolites such as natural zeolites, for example, analcime, chabazite, heulandite, natrolite, mordenite, and thomosonite (thomosonite), and synthetic zeolites.
Examples of the other components include cholesterol, hyaluronic acid, lecithin, and ceramide.
Examples of the other components include a drug, such as a skin astringent, an anti-pimple agent, an anti-wrinkle agent, an anti-cellulite agent, a whitening agent, an antibacterial agent, and an antifungal agent.
Examples of the skin astringent include zinc oxide, aluminum sulfate, tannic acid, and the like, oil-soluble skin astringent, and oil-soluble polyphenol. Examples of the oil-soluble polyphenol include natural oil-soluble polyphenols such as phellodendron extract, forsythia extract, sesamum indicum extract, chamomile extract, burdock extract, hypericum japonicum extract, linden extract, betula alba extract, cedar extract, sage extract, hypericum japonicum extract, walnut extract, hibiscus extract, loquat leaf extract, linden extract, hops extract, horse chestnut extract, and coix seed extract.
Examples of the anti-pimple agent include salicylic acid, benzoyl peroxide, resorcinol, sulfur, erythromycin, zinc, and the like.
Examples of the anti-wrinkle agent include lactic acid, salicylic acid derivatives, glycolic acid, phytic acid, lipoic acid, and lysophosphatidic acid.
Examples of the anti-subcutaneous cellulite agent include xanthine compounds, such as aminophylline, caffeine, theophylline, and theobromine.
Examples of the whitening agent include niacinamide, kojic acid, arbutin, glucosamine and derivatives thereof, phytosterol derivatives, ascorbic acid and derivatives thereof, and mulberry extract and placenta extract.
Examples of the other components include anti-inflammatory components, pH regulators, antibacterial agents, moisturizers, perfumes, colorants, dyes, pigments, plant extracts, and the like. Examples of the anti-inflammatory component include natural anti-inflammatory agents such as peony, scutellaria, forsythia, chamomile, licorice, peach leaf, mugwort, and perilla extract, synthetic anti-inflammatory agents such as allantoin and dipotassium glycyrrhizinate.
Examples of the pH adjuster include substances for keeping skin weakly acidic, such as malic acid, succinic acid, citric acid, tartaric acid, and lactic acid.
Examples of the pigment include titanium oxide.
The other components may have water-soluble, hydrophilic, hydrophobic (lipophilic), and oil-soluble properties.
In the absorbent article of the present application, the lotion composition contains at least three components of (i) a surfactant, (ii) a hydrophobic component, and (iii) a hydrophilic component, and therefore, the other components can be appropriately retained.
Specifically, the lotion composition can retain other components having water solubility in the (iii) hydrophilic component by, for example, dissolution, or (ii) hydrophobic component by micellization with (i) a surfactant.
In addition, the above-mentioned lotion composition can be retained in the (iii) hydrophilic component and the (ii) hydrophobic component, respectively, by micellizing the other hydrophilic and hydrophobic components with the (i) surfactant.
Further, the lotion composition may have other components having oil solubility held in (ii) the hydrophobic component by, for example, dissolution or (iii) the hydrophilic component by micellization with (i) the surfactant.
It is noted that (iii) the hydrophilic component is an optional component of the lotion composition.
In the absorbent article of the present application, the liquid-permeable sheet is provided with a lotion composition on the skin contact surface thereof. The lotion composition may be disposed on the skin contact surface of the liquid-permeable sheet without particular limitation. For example, the plurality of line-like lotion compositions may be disposed so as to be spaced apart in the width direction of the absorbent article and extend along the longitudinal direction of the absorbent article. Further, a plurality of spot-like lotion compositions may be arranged in a zigzag shape on the skin contact surface of the liquid-permeable sheet.
The absorbent article of the present application may preferably be in the range of 3.0 to 8.0g/m2And more preferably 4.0 to 6.0g/m2Has the above lotion composition per unit mass.
In the absorbent article of the present application, the mass per unit area of the lotion composition disposed on the skin contact surface of the liquid-permeable sheet is preferably larger than the mass per unit area of the lotion composition disposed on the non-skin contact surface of the liquid-permeable sheet. Thus, when the skin of the wearer contacts the skin-contacting surface of the liquid-permeable sheet of the absorbent article, the lotion composition is more easily transferred to the skin of the wearer.
The absorbent article of the present application is not particularly limited as long as it is in contact with the skin of the wearer, and examples thereof include disposable diapers, incontinence pads, disposable pants, sanitary napkins, panty liners, pet diapers, and pet sheets.
Examples
The present application will be described below by way of examples, but the present application is not limited to these examples.
Production example 1
Lotion composition No.1 was prepared by mixing 10 parts by mass of MEL (CERAMERA-HG, manufactured by Toyo Co., Ltd.) as a surfactant (i), 89 parts by mass of glyceryl tri (caprylic/capric) ester (manufactured by Nichikoku Co., Ltd., Panasate (trademark) 810S) as a hydrophobic component (ii), and 1 part by mass of deionized water as a hydrophilic component (iii) at 40 ℃. When lotion composition No.1 was left to stand at room temperature (25 ℃ C.) for 24 hours, lotion composition No.1 had a transparent property. This is considered to be because lotion composition No.1 formed a water-in-oil microemulsion.
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 mPas at 36 ℃ and a viscosity of 19 mPas at 25 ℃.
Washing composition No.1 was added at 5.0g/m2The mass per unit area of (A) was applied to a PET release film (PET 38X 1-B, 100mm X100 mm, manufactured by NIPPA corporation) to prepare a plurality of samples of lotion composition-coated film No. 1.
Production example 2
Lotion composition No.2 was prepared by mixing 10 parts by mass of MEL (CERAMERA-HG, manufactured by Toyo Co., Ltd.) as (i) a surfactant, 89 parts by mass of glyceryl tri (caprylic/capric acid) (manufactured by Nichikoku Co., Ltd., Panasate (trademark) 810S) as (ii) a hydrophobic component, 0.7 part by mass of deionized water as (iii) a hydrophilic component, and 0.3 part by mass of ethanol at 40 ℃. When lotion composition No.2 was left to stand at room temperature (25 ℃ C.) for 24 hours, lotion composition No.2 had a transparent property.
Comparative production example 1
A lotion composition No.3 was produced by the method described in the specification of Japanese patent application laid-open No. Hei 10-509896. Specifically, 65 parts by mass of a hydrocarbon (PARLEAM 6, manufactured by Nichikoku corporation) as an emollient and 35 parts by mass of stearyl alcohol (a product obtained by adjusting NAA (trademark) -45, manufactured by Nichikoku corporation) as an inerting agent were mixed while heating to about 80 ℃ to prepare lotion composition No. 3.
The heated and liquefied lotion composition No.3 was set at 40g/m2And 10g/m2The film was coated on a PET release film (PET 38X 1-B, 100mm X100 mm, manufactured by NIPPA corporation) to prepare a plurality of samples of each of lotion composition-coated films No.2 and No. 3.
Example 1 and comparative examples 1 and 2
Artificial skin (PBZ 13001, 50 mm. times.50 mm, manufactured by IDEATEX JAPAN Co.) heated to 40 ℃ was placed on each of the lotion composition-coated films Nos. 1 to 3 in a thermostatic chamber at 25 ℃ and applied at 35gf/cm on the entire surface of the artificial skin2Loading weight under pressure for time and direction of lotion compositionThe relationship of the amount of transfer of the PET film was followed.
Specifically, the mass per unit area when the lotion composition is applied to the artificial skin is represented as BW0(g/m2) The initial mass of the artificial skin is recorded as m0(g) The mass of the artificial skin after t hours from the placement of the weight was recorded as mt(g) Then, the transfer rate of the lotion composition after t hours was calculated by the following formula: TR (transmitter-receiver)t(%):
TRt(%)=100×400×(mt-m0)/BW0
The results are shown in FIG. 1.
The lotion composition-coated films No.1 to No.3 had different transfer rates TR with the passage of timetThe value of (%) is a value measured using each sample.
According to FIG. 1, lotion composition No.1 exhibited a certain transferability from the beginning, i.e., from the time the temperature of lotion composition No.1 rose to 40 ℃, and also exhibited a certain transferability even when the temperature exceeded 40 ℃.
On the other hand, lotion compositions No.2 and No.3 tend to be as follows: the initial transfer rate is low, i.e., the transfer rate of the lotion composition is low until the temperature rises.

Claims (15)

1. 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 contact surface and a non-skin contact surface,
the liquid-permeable sheet is provided with a lotion composition on the skin contact surface, the lotion composition comprising:
(i) a glycolipid surfactant comprising 1 molecule of hexose to which 1 molecule of C is glycosidically bondednH2n+2OnA molecule obtained from the sugar alcohol of (1) and a hydroxy fatty acid, wherein n is an integer of 4 to 6; and
(ii) a hydrophobic component containing at least 1 selected from the group consisting of glycerin fatty acid ester, polyglycerin fatty acid ester, propylene oxide and/or butylene oxide adduct of glycerin, and propylene oxide and/or butylene oxide adduct of polyglycerin.
2. The absorbent article according to claim 1, wherein the lotion composition comprises (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, with respect to 100% by mass of the total of (i) the surfactant and (ii) the hydrophobic component.
3. The absorbent article of claim 1, wherein the lotion composition further comprises (iii) an aqueous hydrophilic component.
4. The absorbent article according to any one of claims 1 to 3, wherein the lotion composition contains (i) the surfactant, (ii) the hydrophobic component and (iii) the 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, with respect to 100 mass% of the total of (i) the surfactant, (ii) the hydrophobic component and (iii) the hydrophilic component.
5. The absorbent article according to any one of claims 1 to 3, wherein the lotion composition has a viscosity of 15 to 40 mPa-s at 25 ℃.
6. The absorbent article according to any one of claims 1 to 3, wherein the lotion composition has a viscosity of 15 to 30 mPa-s at 36 ℃.
7. The absorbent article according to any one of claims 1 to 3, wherein the difference between the viscosity at 36 ℃ and the viscosity at 25 ℃ of the lotion composition is 6 mPas or less.
8. The absorbent article according to any one of claims 1 to 3, wherein the (i) surfactant is a mannosylerythritol lipid.
9. An absorbent article according to any one of claims 1 to 3, wherein the (ii) hydrophobic component is a glycerin fatty acid triester.
10. The absorbent article of claim 3, wherein (iii) the hydrophilic component further comprises an alcohol.
11. The absorbent article according to any one of claims 1 to 3, wherein the mass per unit area of the lotion composition disposed on the skin contact surface is larger than the mass per unit area of the lotion composition disposed on the non-skin contact surface.
12. A lotion composition for an absorbent article, the lotion composition comprising:
(i) a glycolipid surfactant comprising 1 molecule of hexose to which 1 molecule of C is glycosidically bondednH2n+2OnA molecule obtained from the sugar alcohol of (1) and a hydroxy fatty acid, wherein n is an integer of 4 to 6; and
(ii) a hydrophobic component containing at least 1 selected from the group consisting of glycerin fatty acid ester, polyglycerin fatty acid ester, propylene oxide and/or butylene oxide adduct of glycerin, and propylene oxide and/or butylene oxide adduct of polyglycerin.
13. The lotion composition according to claim 12, wherein the lotion composition comprises (i) the surfactant and (ii) the hydrophobic ingredient 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 ingredient.
14. The lotion composition of claim 12, wherein the lotion composition further comprises (iii) an aqueous hydrophilic component.
15. The lotion composition according to any one of claims 12 to 14, wherein the lotion composition comprises (i) the surfactant, (ii) the hydrophobic component and (iii) the 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) the surfactant, (ii) the hydrophobic component and (iii) the hydrophilic component.
CN202011358216.7A 2019-11-29 2020-11-27 Absorbent article comprising lotion composition and the lotion composition Pending CN112870426A (en)

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JP6416509B2 (en) * 2014-06-06 2018-10-31 ユニ・チャーム株式会社 Absorbent articles
JP6531514B2 (en) * 2014-07-02 2019-06-19 東洋紡株式会社 Emulsified composition
JP6688454B2 (en) * 2018-06-01 2020-04-28 東洋紡株式会社 Synthetic fiber, fiber treatment agent, and use thereof

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JP2003012490A (en) * 2001-07-02 2003-01-15 Uni Charm Corp Absorptive article and lotion for the same
JP2004217640A (en) * 2002-12-27 2004-08-05 Kao Corp Skin detergent composition
JP2012057275A (en) * 2010-09-10 2012-03-22 Daiwabo Holdings Co Ltd Hydrophilic synthetic fiber, fiber aggregate, product for skin contact and fiber treatment agent
JP2013155467A (en) * 2012-01-31 2013-08-15 Daiwabo Holdings Co Ltd Hydrophilic synthetic fiber, fiber aggregate, product coming in contact with skin and treatment agent for hydrophilic fiber

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