WO2008123115A1

WO2008123115A1 - Drug solution for cleaning wet sheet and cleaning wet sheet containing the same

Info

Publication number: WO2008123115A1
Application number: PCT/JP2008/055166
Authority: WO
Inventors: Misaki Ishida; Yoshihito Oda; Satomi Teraoka; Takeshi Bandoh; Takahiro Ueda
Original assignee: Uni-Charm Corporation; Nof Corporation
Priority date: 2007-03-30
Filing date: 2008-03-13
Publication date: 2008-10-16
Also published as: EA200900846A1; KR20090122997A; KR101482595B1; CN101652122A; JP5694660B2; JPWO2008123115A1; EA017223B1

Abstract

It is intended to provide a drug solution for obtaining a cleaning wet sheet which gives a smooth wipe, is good for removing dirt, has a sufficient detergency, gives a smooth finish without causing a sticky feel on the skin after its use, prevents skin roughness and causes less recontamination at the time of rewiping. The drug solution for a cleaning wet sheet of the invention contains 0.001 to 1% by mass of a silicone compound (a), 0.001 to 1% by mass of a water-soluble amino acid or a derivative thereof (b), 0.001 to 0.5% by mass of an amidobetaine-type amphoteric surfactant (c), 0.1 to 7% by mass of a water-soluble polyhydric alcohol (d), and 0.0005 to 1% by mass of an acrylic-based polymer (e).

Description

Cleaning solution for cleaning sheet and cleaning sheet containing the same

Technical field

The present invention relates to a chemical solution for a wiping wet sheet for skin and a wiping wet sheet containing the same. More specifically, Meiji explains the chemicals for wiping wet sheets used for wiping wipes, facial sheets, body sheets, etc., and Kiyota including the same.

The present invention relates to a wet wipe sheet.

Background art

In order for people to live, it is necessary to periodically wipe off dirt from the outside world, or dirt from secretions such as sebum and sweat. In general, use a solid or liquid soap to remove dirt by washing yourself when taking a bath. However, this is difficult for babies and people with physical disabilities, so caregivers must clean their bodies by wiping them with a wet towel (cleaning), . For such wiping, a wiping agent diluted with warm water or a wiping wet sheet is generally used. In particular, wiping wet sheets are convenient and easy to use, and are hygienic, so they are widely used as body sheets and facial sheets in addition to baby wipes.

Such wiping wet sheets or chemicals used therefor have been proposed in various ways for the purpose of preventing rough skin, antibacterial properties, and antifungal properties since they directly contact the skin. For example, Japanese Patent Laid-Open No. 10-5 7 2 6 8 proposes a wet sheet containing pyrrolidone carboxylate soda and a mineral component for the purpose of preventing rough skin. Also antibacterial and antifungal W

From the viewpoint, Japanese Patent Application Laid-Open No. 2001-206818 discloses a chemical solution for wet tissue in which sodium benzoate and sodium lactate opi / or phenoxyethanol are dissolved in an aqueous medium. In 2002-33 06, a chemical solution for wet tissue using phenoxyethanol in combination with lactic acid and / or lactate containing a large amount of D form is disclosed. Furthermore, for the purpose of providing a chemical solution having both antibacterial properties and a rough skin prevention function, Japanese Patent Application Laid-Open No. 2004-67586 discloses ε-polylysine or a salt thereof, an electrolyte having a ρ-relaxation function, and an amino acid. An antibacterial agent composition containing the same is disclosed, and Japanese Patent Application Laid-Open No. 2005-2008 proposes a composition containing a plant extract of carrot, halan, mugwort, celery, nankyoyo, or murasaki. However, these wiping wet sheets or chemicals do not take into consideration the lightness (slipperiness) when wiping (when wiping the skin) or sufficient removal of dirt, and keep the skin even more after use. Alternatively, it is difficult to prevent recontamination when dirt such as dirt moves from a towel when wiping another part (when rewiping). Furthermore, it is also difficult to impart barrier properties while sufficiently preventing rough skin against skin with poor barrier properties in which atopic dermatitis, which has been increasing rapidly in recent years, has occurred.

By the way, a dilution type wiping agent that prevents recontamination while further finishing the skin has already been developed. For example, Japanese Laid-Open Patent Publication No. 2002-284669 or Japanese Laid-Open Patent Publication No. 2004-10498 discloses a wiping agent composition in which an amino-modified silicone and sarcophagus are combined. However, each of these compositions is a type that is used after being diluted, and the stability in the diluted state is not sufficient. Furthermore, when this wiping agent composition is used as a chemical solution for a wiping wet sheet, the cleaning performance against oily dirt and the lightness (slidability) when wiping off are not sufficient. Disclosure of the invention

The present invention provides smooth wiping, good dirt removal, sufficient cleaning power, and a dry finish that prevents the skin from becoming rough after use. It is an object of the present invention to provide a wiping chemical for obtaining a wiping wet sheet (chemical for wiping wet sheet) and a wiping wet sheet containing the same.

As a result of repeated research to solve the above problems, a specific silicone compound, an amino acid or a derivative thereof, an amide betaine type amphoteric surfactant, a water-soluble polyhydric alcohol, and a specific acrylic polymer are combined in a specific ratio. More preferably, by adding two specific cellulosic polymers in a specific ratio to this, it was found that a chemical for a wiping wet sheet that achieves the above-mentioned object was obtained, and the present invention was completed. It came to do.

Wipe wet sheet for chemical present invention, the silicone compound (a) 0. 00 1~ 1 wt%, water-soluble Amino acids or derivatives thereof (b) 0. 00 1~1 mass ^_0/0, amide betaine type amphoteric surfactant (c) 0. 00 1~0. 5 wt%, water-soluble polyvalent alcohol (d) 0. 1~ 7 mass ^_0/0, Oyopi Atariru polymer

(e) containing 0.0005 to 1% by mass of the silicone compound (a)

(Wherein a plurality of R ^{1 s} each represent a methyl group or a phenyl group, and at least one of the plurality of R ¹ is a methyl group; R ² represents a methyl group, water An acid group, or R ³ Z; R ³ represents an alkylene group having 3 to 6 carbon atoms, Z represents — N (R ⁴ ) ₂ or one NR ⁴ (CH ₂ ) _a N (R ⁴ ) ₂ Wherein R ⁴ is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and a is an integer of 2 to 6; and m and n are each 0 to 20000 And m + n = 30 to 20000), and the acrylic polymer (e) is composed of 2— (meth) talixyl oxychetyl phosphorylcholine (el) as a structural unit. And (meth) acrylic acid alkyl ester ( _e 2) in a total of 60% by mass or more, and the mass ratio (el) / (e 2) between (el) and (e 2) is 100 / 0 to: L 0/90, and (e 1) is represented by the formula (II):

(Wherein R ⁵ represents a hydrogen atom or a methyl group, R ⁶ , R and R ⁸ each represents an alkyl group having 1 to 8 carbon atoms, and n is an integer of 2 to 4) Indicated.

In one embodiment, the chemical solution further comprises hydroxyalkyl cellulose (f) 0.01 to 0.5 mass ^{0 and} cationized cellulose (g) 0.01 to 0.5 mass ⁰ /. And the mass ratio (f) / (g) between (ί) and (g) is from 15 to 51.

The wiping wet sheet of the present invention comprises a base material and the above chemical solution impregnated in the base material.

By using the chemical for wiping wet sheet of the present invention, the wiping is smooth, the dirt is well removed, the cleaning power is sufficient, and the skin becomes sticky after use. With a smooth finish, it can prevent rough skin, and it is difficult to re-contaminate when re-wiping. This wiping wet sheet is used as a wiping wipe, facial sheet, body sheet and the like. BEST MODE FOR CARRYING OUT THE INVENTION

The chemical solution for wiping wet sheets of the present invention comprises a silicone compound (a), a water-soluble amino acid or derivative thereof (b), an amide betaine amphoteric surfactant (c), a water-soluble polyhydric alcohol (d), and an acrylic. Contains the polymer (e) at a specific ratio. In addition to these components, this chemical solution further contains hydroxyalkyl cellulose (f) and cation (g), additives and the like as necessary.

1. Ingredients that make up chemicals for cleaning wet sheets

(1) Silicone compound (a)

The silicone compound (a) used in the present invention (hereinafter sometimes referred to as component a) is represented by the following general formula (I):

In the general formula (I), each of the plurality of R ¹ represents a methyl group or a phenyl group, and at least one of the plurality of R ¹ is a methyl group.

In the above general formula (I), R ² represents a methyl group, a hydroxyl group, or R ³ Z. In the above general formula (I) and R ³ Z group, R ³ is an alkylene having 3 to 6 carbon atoms. And preferably 1 (CH ₂ ) ₃ —. Z represents one N (R ⁴ ) ₂ or an amino group represented by —NR ⁴ (CH ₂ ) _a N (R ⁴ ) ₂ (wherein R ⁴ independently represents a hydrogen atom or a carbon number of 1 to 4 And a is an integer of 2 to 6). Z is preferably one NH ₂ , _NHCH ₃ , -N (CH ₃ ) ₂ , — NH (CH ₂ ) ₂ NH ₂ , -NH (CH ₂ ) ₂ NHCH ₃ , or one NH (CH ₂ ) ₂ N (CH ₃ ) ₂ .

In the general formula (I), m and n are each an integer of 0 to 20000, and m + n is 30 to 20000, preferably 100 to 20000, and more preferably 1000 to 20000.

Specific examples of the silicone compound (a) include, for example, aminoethylaminopropylmethylsiloxane.dimethylsiloxane copolymer. The silicone compound (a) used in the present invention can be obtained, for example, as XS 65-B 81 24 (manufactured by GE Toshiba Silicone Co., Ltd.).

In the chemical solution of the present invention, the silicone compound (a) is contained in an amount of 0.001 to 1% by mass, preferably 0.001 to 1% by mass, and more preferably 0.005 to 0.5% by mass. 0. If less than 001% by mass, the resulting chemical solution is not sufficiently wiped off and removed, the skin feels poor after use (feels sticky to the skin), and the effect of preventing recontamination is also poor. It will be enough. If it exceeds 1% by mass, there will be a problem with the stability of the chemical solution, which is disadvantageous in terms of cost.

(2) Water-soluble amino acids or their derivatives (b)

The water-soluble amino acid or derivative thereof (b) (hereinafter sometimes referred to as “b” component) used in the present invention is a water-soluble compound having an amino group and a strong lpoxyl group in the molecule. As the water-soluble amino acid, it is preferable to use an α-amino acid, and it is preferable to use a water-soluble amino acid among the 20 types of amino acids constituting the biological protein. Examples include arginine, alanine, glycine, glutamine, cysteine. Water-soluble amino acid derivatives and Therefore, what is generally called an amino acid humectant is used. Specific examples include trimethyl glycine (betaine), pyrrolidone force ruponate (sodium pyrrolidone carboxylate), polyglutamic acid, and the like.

In the chemical solution of the present invention, a water-soluble amino acid or derivative thereof (b) I 0.001 to 1% by mass, preferably 0.003 to 1% by mass, more preferably 0.005 to 0.5% by mass. % Content. When the amount is less than 1% by mass, the skin feel after use of the obtained chemical solution is poor, and the effect of preventing rough skin is insufficient. If it exceeds 1% by mass, the resulting chemical solution will have insufficient wiping and removal of dirt, and the skin feel after use will be poor.

(3) Amidobetaine amphoteric surfactant (c)

The amide betaine amphoteric surfactant (C) (hereinafter sometimes referred to as C component) used in the present invention is a betaine amphoteric surfactant having an amide group. Specific examples of amidobetaine-type amphoteric surfactants include betaine laurate, aminopropyldimethylaminoacetic acid betaine, coconut oil fatty acid amidopropyl dimethylaminoacetic acid betaine, and palm kernel oil fatty acid amidopropyldimethylamino. Amidoaminoacetate-type amphoteric surfactants such as betaine acetate and amidopropyldimethylaminoaminoacetate undecylenate; Amidosulfobetaine-type amphoteric surfactants such as lauric acid propyldimethy / rehydroxysulfobetaine Agents; amidophosphobetaine-type amphoteric surfactants. From the viewpoint of safety and stability, an amino acid betaine amphoteric surfactant is preferably used. The amide betaine-type amphoteric surfactant (C) can be obtained, for example, by quaternizing fatty acid amine amine (tertiary) with monochloroacetic acid or a salt thereof.

In the chemical solution of the present invention, an amide betaine type amphoteric surfactant (c) force 0.001 to 0.5% by mass, preferably 0.003 to 0.5% by mass, more preferably Is contained in an amount of 0.005 to 0.5 mass%. 0.00 Less than 1% by mass The resulting chemical solution has insufficient wiping and removal of dirt, and also has insufficient cleaning power and anti-recontamination effect. When the amount exceeds 0.5% by mass, the skin feel after use of the obtained chemical solution is poor, and the effect of preventing rough skin becomes insufficient.

(4) Water-soluble polyhydric alcohol (d)

The water-soluble polyhydric alcohol (d) (hereinafter sometimes referred to as “d component”) used in the present invention is a water-soluble compound having two or more hydroxyl groups in one molecule. Specific examples of water-soluble polyhydric alcohols include propylene glycol, dipropylene glycolol, isoprenglycolanol, 1,3-butyleneglycolanol, glycerin, diglycerin, polyethylene glycololole, so / levitonorole, and manoletitol. It is done. Propylene glycole, dipropylene glycolol, isoprenglycone, 1,3 1-butylene alcohol, glycerin, and polyethylene glycol with a number average molecular weight of 600 to 20000 are preferred because of the good feel when using chemicals. Used.

In the chemical solution of the present invention, water-soluble polyhydric alcohol (d) I 0.1 to 7% by mass, preferably 0.3 to 5% by mass, more preferably 0.5 to 5% by mass. / ₀ contained. When the amount is less than 1% by mass, the resulting chemical solution has insufficient wiping off and no stain removal, and the effect of preventing rough skin and the effect of preventing recontamination are insufficient. If it exceeds 7% by mass, the resulting chemical solution will have insufficient wiping and removal of dirt, resulting in poor skin feel after use.

(5) Acrylic polymer (e)

The acrylic polymer (e) used in the present invention (hereinafter sometimes referred to as “e” component) is composed of 2_ (meth) acryloyloxychetylphosphorylcholine (e 1) and (meth) acrylic acid alkyl ester (e 2) and a mass ratio of (e 1) to (e 2) (e 1) / (e 2) force 1 00/0 to 1 0 90 is there. That is, the acrylic polymer (e) is specifically a homopolymer composed of (i) (el) only. (Ii) a copolymer polymer of (el) and (e 2) above, or (iii) a compound other than (e 1) and (e 2) above (this is referred to as compound (e 3) Or (iv) a copolymer polymer consisting of (el), (e 2), and (e 3).

The above 2- (meth) acryloyloxychetylphosphorylcholine (e l) is represented by the following general formula (I I):

R ⁵ ○ R ⁶

I II

H ₂ C = C— C— OCH ₂ CH ₂ OPO (CH ₂ ) _n -N ⁺ -R ₇ ⁷ U

OO—R ⁸

In the general formula (II), R ⁵ represents a hydrogen atom or a methyl group, R ⁶ , R ⁷ , and R ⁸ each represents an alkyl group having 1 to 8 carbon atoms, and n is an integer of 2 to 4 is there. 2-methacryloyloxychetyl, wherein in the general formula (II), R ^{5 to} R ⁸ are all methyl groups and n is 2 Phosphorylcholine (hereinafter referred to as MP C) is preferred.

The (meth) acrylic acid alkyl ester (e2) refers to a methacrylic acid alkyl ester having 1 to 6 carbon atoms in the alkyl group and Z or acrylic acid alkyl ester. This component (e 2) is obtained from, for example, methacrylic acid or acrylic acid and an alcohol having 1 to 6 carbon atoms (lower alcohol). The carbon number of the alcohol is preferably 2 to 5, more preferably 3 to 4.

The above compound (e 3) is a compound having a double bond capable of copolymerizing with 2_ (meth) acryloyloxychetyl phosphorylcholine (el) and (meth) acrylic acid alkyl ester (e 2) . For example, ethylene, propylene, Hydrocarbons having olefinic double bonds such as butene, isobutene and styrene and their derivatives; ethylenically unsaturated compounds such as atalyl acid, methacrylic acid, bulacetic acid, itaconic acid, crotonic acid, maleic acid and fumaric acid Hoppi derivatives thereof; Bier alcohol and derivatives thereof.

The mass ratio (el) Z (e 2) between the above 2— (meth) attaroyloxetyl phosphorylcholine (el) and the above (meth) acrylic acid alkyl ester (e 2) is as follows: / 0 to 1 0/90, preferably 100 Z0 to 30/70, more preferably 95/5/5 to 50-50. When (e 1) / (e 2) is smaller than 10/90, sufficient rough skin prevention effect cannot be obtained.

Furthermore, as the structural unit of the acrylic polymer (e), the above-mentioned 2- (meth) acryloyloxychetylphosphorylcholine (el) and the above (meth) acrylic acid alkyl ester (e 2) are as described above. The acrylic polymer (e) is contained in a total of 60% by mass or more, preferably 70% by mass or more, more preferably 80% by mass or more. When the total amount of the structural unit consisting of (el) and the structural unit consisting of (e 2) in the acrylic polymer (e) is less than 60% by mass, the resulting chemical solution will have insufficient skin roughening prevention effects. . When the total weight of (e 1) and (e 2) does not reach 100% by mass, the remaining structural unit is compound (e 3).

The acrylic polymer (e) is obtained by a polymerization method usually used by those skilled in the art. The molecular weight of the acrylic polymer (e) is preferably from 10,000 to 10,000,000 in terms of weight average molecular weight from the viewpoint of further improving the skin feel and the effect of preventing rough skin after use of the finally obtained wipe sheet. 0000-5000000 is more preferred. Specific examples of the acrylic polymer (e) include MP C homopolymer and copolymer polymer of MP C and butyl methacrylate. For example, Lipidure (registered trademark) One HM (manufactured by NOF Corporation), Lipidure (registered trademark), one PMB (manufactured by NOF Corporation), etc. are commercially available.

In the chemical solution of the present invention, the acrylic polymer (e) 1S 0.005 to 1% by mass, preferably 0.005 to 0.5% by mass, more preferably 0.001 to 0.5% by mass. % Content. When the amount is less than 0.005% by mass, the resulting chemical solution is insufficiently effective in preventing recontamination and preventing rough skin. In addition, the cleaning power is insufficient and the skin feels after use. If it exceeds 1% by mass, the resulting chemical solution can be easily wiped off, and the removal of stains will be insufficient, which is disadvantageous in terms of cost.

(6) Hydroxyalkyl cellulose (f) and cationized cellulose (g)

The chemical solution of the present invention is preferably hydroxyalkyl cellulose (f) and cationized cellulose (g) for the purpose of wiping off dirt, removing dirt, preventing re-contamination, and further improving the skin feel after use. ) May be included. The hydroxyalkyl cellulose (f) (hereinafter sometimes referred to as f component) used in the present invention has an alkyl group having 1 to 4 carbon atoms. Preferred are hydroxychetyl cellulose, hydroxypropyl cellulose, and hydroxypropylmethyl cellulose, and more preferred is hydroxychetyl senorelose.

The hydroxyalkyl cellulose (f) used in the present invention includes, for example, a cell size (registered trademark: manufactured by Union Carpide Corporation (UCC)), HE C Daicel (registered trademark: manufactured by Daicel Chemical Industries, Ltd.), Available as Tocel (registered trademark: Dow Chemical).

The cationized cellulose (g) (hereinafter sometimes referred to as “g” component) used in the present invention is, for example, hydroxyethyl cellulose, a cationizing agent (for example, dimethinoresinolylene mon chloride). , 3-chloro-2-hydroxy By cationization with cyprovir trimethylammonium, glycidyltrimethylammonium chloride, 3-chloro-2-hydroxypropynolelaurinoresimethi 7leamonium chloride, glycidyllauryldimethylammonium chloride, etc. can get. The cationized cellulose (g) used in the present invention includes, for example, polymer JR (manufactured by Union Carbide Corporation (UCC)), Leoguard (registered trademark: manufactured by Lion Corporation), kachinar (Toho Chemical Industry Co., Ltd.) Available).

When hydroxyalkyl cellulose (f) and cationized cellulose (g) are contained in the chemical solution of the present invention, the contents thereof are 0.001 to 0.5% by mass, respectively. Furthermore, mass ratio of f component to g component (f) / (g) 1

1/5 to 5/1 is preferable, and 1/2 to 2/1 is more preferable. By including the g component in the above-mentioned range, the wiping property and stain removal of the resulting chemical solution are further improved, and a better anti-recontamination effect is obtained. It is done.

(7) Additives

The chemical solution for a wiping wet sheet of the present invention may further contain additives usually used for cosmetics, wiping agents and the like within a range not impairing the performance of the present invention. Examples of such additives include hydrocarbon oils such as liquid paraffin, liquid isoparaffin, squalane, petrolatum, and solid paraffin; natural fats and oils such as beef tallow, pork tallow and fish oil; glyceryl tri-2-ethylhexylate Synthetic oils such as beeswax, carnauba wax, etc .; ester oils such as beeswax, carnauba wax, etc .; , Protein derivatives, lanolin, lanolin derivatives, lecithin and other oily bases; polyoxyethylene alkyl ether, polyethylene glycol fatty acid ester, polyoxypropylene alkyl ether, polypropylene Nonionic surfactants such as lenglycol fatty acid ester, sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil, polyglycerin fatty acid ester, glycerin monofatty acid ester, alkyl polydarcoside, polyoxyethylene polyoxypropylene block polymer, al force noramide Agent: Stone wall, Alkyl sulfate ester, Alkyl ether sulfate, α-Lefine sulfonate, Acylmethyl taurate, Acyl glutamate, Acyl glycine salt, Acyl sarcosine salt, Acyl isethionate, Alkyl ether carboxylic acid Anionic surfactants such as salts, amide ether sulfates and alkyl phosphate esters; semipolars such as alkylamine oxides and polyoxyethylene alkylamine oxides Surfactants: Cationic surfactants such as alkyltrimethylammonium chloride and dialkyldimethylammonium chloride; hydrochlorides and acetates of alkylamines or amidoamines; talc, kaolin, sericite, mica, permkylite, Magnesium carbonate, Calcium carbonate, Silica earth, Magnesium silicate, Calcium silicate, Aluminum silicate, Barium silicate, Strontium silicate, Barium sulfate, Tandastate metal salt, Silica, Zeolite, Hydroxyapatite, Boron nitride, Ceramic Inorganic powder such as mix; organic powder such as crystalline cellulose, polyethylene powder, polytetrafluoroethylene powder; titanium oxide, zinc oxide, red iron oxide (Bengara), ocher, carbon black, cobalt violet, black oxide Inorganic pigments such as ultramarine; pearl pigments such as titanium oxide-coated mica, fish scale foil, and colored titanium oxide-coated mica; metal powders such as aluminum powder and kappa powder; red 20 1 and orange 2 0 4 Organic pigments such as yellow 2 0 5 and blue 4 0 4; red 3; red 1 0 6; red 2 2 7; yellow 4; yellow 5; blue 1 etc .; chlorophyll Natural pigments such as rotin; water-soluble polymers such as alginic acid, carboxy vinylol polymer, canolepoxy methino resenololose, xanthan gum, hyanolic acid; magnesium sulfate, sodium chloride, sodium taenoate Examples include inorganic or organic salts such as rhum; pH adjusting agents such as acids and alkalis; bactericides; chelating agents; antioxidants; ultraviolet absorbers; anti-inflammatory agents;

As the solvent for the wiping sheet chemical solution of the present invention, the above-mentioned components can be dissolved or dispersed, and a solvent that is harmless to the human body is used. For example, aqueous media such as water (purified water, etc.) and hydrous alcohol are used.

2. Chemicals for wiping wet sheet and wiping wet sheet containing the same

The chemical solution for a wiping wet sheet of the present invention comprises the above silicone compound (a), a water-soluble amino acid or derivative thereof (b), an amide betaine type amphoteric surfactant (c), a water-soluble polyhydric alcohol (d), It contains an acrylic polymer (e) and an aqueous medium, and may further contain hydroxyalkyl cellulose (f), cationized cellulose (g), additives, and the like, if necessary. Usually, the chemical solution for a wiping wet sheet of the present invention comprises the above silicone compound (a), a water-soluble amino acid or a derivative thereof (b), an amide betaine type amphoteric surfactant (c), a water-soluble polyhydric alcohol (d). The acrylic polymer (e) is prepared by dissolving or dispersing it in an aqueous medium such as purified water at the predetermined ratio. Furthermore, if necessary, hydroxyalkyl cellulose (f), cationized cellulose (g), and additives may be dissolved or dispersed in the above chemical solution at a predetermined ratio.

The chemical solution for a wiping wet sheet of the present invention is used as a wiping wet sheet used for various applications (wet wipe, facial sheet, body sheet, etc.) by impregnating the base material. Examples of the base material include a nonwoven fabric made of natural fibers or synthetic fibers, and paper. Specifically, a spunlace nonwoven fabric with high wet strength using rayon, polyester, polyethylene, or polypropylene is used. Large sheet used as a substrate The size is appropriately set according to the part to be used, or the container or package to be stored, but is usually about 1550 × 20 Omm. A wiping wet sheet can be obtained by impregnating 100 parts by mass of the chemical solution of the present invention at a ratio of about 100 to 300 parts by mass.

The wiping wet sheet prepared by using the chemical solution of the present invention is stored in a container from the viewpoint of preventing drying. As such a container, for example, it is a relatively hard one formed of a synthetic resin such as polyethylene or polypropylene, and the entire container is disposed so that the protruding wiping wet sheet is not dried at the take-out port. The container in which the cover body which can seal a body is formed is preferable. Alternatively, the wiping wet sheet may be stacked and stored in a liquid-impermeable film-like package (for example, used as a refilling mode). Furthermore, the so-called refilling method may be used in which the package containing the wet sheet laminate is stored in a hard container. Specifically, the method described in Japanese Patent Application Laid-Open No. 2 00 0-7 9 0 74 is adopted. Example

Next, the present invention will be described in more detail by way of examples.

Each chemical solution prepared in the following examples and comparative examples was evaluated by the following methods (1) to (4). The cleaning wet sheet used in the following evaluation was made by cutting a 40 g non-woven fabric with a spun lace into a size of 15 50 X 20 O mm, and 100 mass parts of the non-woven fabric (sheet). Then, it was prepared by impregnating 2800 parts by mass of the chemical solution.

(1) Detergency and ability to prevent recontamination

Using a wet artificial contamination cloth (JIS-C 96 06 standard, manufactured by Laundry Chemistry Association), a chemical solution for wiping wet sheets was measured at 40 ° C using a targotometer (manufactured by Daiei Kagaku Seiki Seisakusho Co., Ltd.). And then rinsed 3 times with the same amount of water. After that, it was dehydrated and air-dried, and the whiteness was measured by “Color Tester” manufactured by Nippon Denshoku Industries Co., Ltd. The washing rate was calculated from the change rate of the whiteness before and after washing by the following formula, and the washing property was evaluated according to the following criteria. At the same time, the white cloth was washed together with the contaminated cloth, the recontamination rate was calculated from the rate of change in whiteness, and the antifouling ability was evaluated according to the following criteria.

Cleaning rate (%) = (C-B) / (A-B) X 100

Recontamination rate (%) = (A-D) / A X 100

Whiteness of white cloth: A

Whiteness of contaminated cloth before washing: B

Whiteness of contaminated cloth after washing: C

Whiteness of white cloth washed with contaminated cloth: D

Detergency:

○: Good detergency (cleaning rate is 25% or more)

X: Detergency is poor (cleaning rate is less than 25%)

Prevention of recontamination:

○: Good anti-recontamination ability (Re-contamination rate is 5% or less)

X: Prevention of recontamination is poor (recontamination rate exceeds 5%)

(2) Wipeability and dirt removal

20 women with infants from 0 to 2 years old were panelists, and the wipeability and stain removal when the infant's buttocks were wiped using a cleaning wet sheet were determined as follows.

2 points: When wiping is smooth and the dirt feels lightly wiped 1 point: When wiping off, the slipperiness is not good or it is difficult to remove the dirt.

0 points: When wiping off, when slipping is bad or when it is clearly difficult to remove dirt The average value of 20 people was obtained, and the wipeability and dirt removal were evaluated according to the following criteria.

◯: Good wiping property and dirt removal (average point 1.5 points or more)

X: Inferior wiping property and dirt removal (average point less than 1 · 5 points)

(3) Stickiness of skin after use

Panels were 20 women with infants from 0 to 2 years old, and the skin stickiness after wiping off the infant's buttocks using a cleaning wipe sheet was determined as follows.

2 points: If the skin is not sticky and feels dry after use 1 point: If the skin feels slightly sticky or not smooth after use

0 points: If the skin feels sticky after use and feels uncomfortable

The average value of 20 people was obtained, and the stickiness after use was evaluated according to the following criteria. ◯: Good without stickiness (average value of 1.5 points or more)

X: Sticky feeling and poor (average value less than 1.5 points)

(4) Effect of preventing rough skin

The rough skin is raw. 10 females with infants from 0 to 2 years old were treated as panelists, and a wet wipe was used for a week as a wipe for infants. A new cleaning wet sheet was used for each use. Thereafter, the skin condition of the infant's ass was determined as follows.

2 points: If you feel your skin is not rough at all

1 point: If you feel that the skin is slightly rough

0 points: When the skin is clearly rough

The average value of 10 people was obtained, and the rough skin prevention effect was evaluated according to the following criteria.

◯: Good skin roughening prevention effect (average value of 1.5 points or more)

X: Effect of preventing rough skin is poor (average value less than 1.5 points) (Examples 1 to 7)

Each component shown in Table 1 was mixed in the proportions shown in Table 1 to obtain chemical liquids for wiping wet sheets (these were designated as chemical liquids 1 to 7, respectively). Using the obtained chemical solutions 1-7, (1) Detergency and re-contamination prevention power, (2) Wiping property and dirt removal, (3) Stickiness of skin after use, and (4) Anti-rough effect Was evaluated by the above test method. The results are shown in Table 1.

(Comparative Examples 1-7)

The components shown in Table 2 were mixed at the ratios shown in Table 2 to obtain chemical liquids for wiping wet sheets (these were designated as chemical solutions 8 to 14, respectively). The obtained chemical solutions 8 to 14 were evaluated by the test methods (1) to (4) above. The results are shown in Table 2.

table 1

Notes to Table 1

Note 1 “XS 65_B8124” (manufactured by GE Toshiba Silicone Co., Ltd.) “Amino” Ethylaminopropyl methyl silane / dimethyl dimethyl hexane copolymer containing 20% by mass "

Note 2: “Lipi du re (registered trademark) Ichi HM” (manufactured by NOF Corporation) “40 mass of MPC homopolymer with a weight average molecular weight of approximately 80,000. / Aqueous solution containing it” Note 3: “L ipidure (registered trademark) I PMB” (manufactured by NOF Corporation)

"MPC 80 mass. / ₀ aqueous solution containing 5 mass% of polymer with 20 mass% of butyl methacrylate and weight average molecular weight of about 600,000" Note 4: "Cerosize (registered trademark) QP 4400H" (Union Carbide Corporation (UCC))

Note 5: “Polymer J R—400” (Union 'Carbide' Corporation (UCC))

Note 6: "XS 65- B 2907" (manufactured by GE Toshiba Silicone Co., Ltd.) "Emulsions containing 34.8 mass ^{0 of} highly polymerized methylpolysiloxane"

Table 2

Notes to Table 2

Note 1: "XS 65- B 8124" (manufactured by GE Toshiba Silicone Co., Ltd.) "Emulsion containing 20% by mass of aminoaminoylaminopropylmethylsiloxane.dimethylsiloxane copolymer"

Note 2: “: Lipi du re (registered trademark) Ichi HM” (manufactured by NOF Corporation) “Aqueous solution containing 40% by mass of MPC homopolymer having a weight average molecular weight of about 80,000” Note 3: “ L ipidure (registered trademark) I PMB "(manufactured by NOF Corporation)

“Aqueous solution containing 5% by mass of a polymer composed of 80% by mass of MPC and 20% by mass of butyl metathalylate and having a weight average molecular weight of about 600,000”

Note 4: "Cerosize (registered trademark) QP 4400H" (Union Carbide Corporation (UCC))

Note 5: “Polymer J R—400” (manufactured by Yueon 'Carbide' Corporation (UCC))

Note 6: (manufactured by GE Toshiba Silicone Co.) "XS 65-B 2907" As apparent from the "highly polymerized methylpolysiloxane 34.8 mass ^_0/0 emulsion containing" Table 1 Results of Example 1 All of the 7 cleaning chemicals are easy to wipe off, clean easily, have excellent cleaning power, and prevent rough skin with a non-sticky and smooth finish after use. Excellent anti-recontamination ability.

On the other hand, as is clear from the results in Table 2, the chemicals for wiping wet sheets of Comparative Examples 1 to 7 did not provide sufficient performance. That is, in Comparative Example 1, since a silicone compound derivative other than the component a which does not contain an amino group is used in place of the component a, the wiping property and stain removal are insufficient, and the skin is smooth after use. There was a feeling. Furthermore, the effect of preventing recontamination was insufficient. In Comparative Example 2, the b component is not included, so the skin feels sticky after use. The effect of preventing roughening was insufficient. In Comparative Example 3, since the component b was included exceeding the range of the present invention, the wiping property and dirt removal were insufficient, and the skin was sticky after use. In Comparative Example 4, since the c component was not included, the cleaning power, the effect of preventing re-contamination, the wiping property and the removal of dirt were insufficient. In Comparative Example 5, since the d component exceeds the range of the present invention, the wiping property and stain removal are insufficient, and the skin feels sticky after use. In Comparative Examples 6 and 7, since the e component was not included, the recontamination prevention effect and the rough skin prevention effect were insufficient. Further, in Comparative Example 6, the skin remained sticky after use. In Comparative Example 7, the detergency was insufficient. Industrial applicability

By using the chemical liquid for wiping wet sheet of the present invention, a wiping wet sheet is provided. This wiping wet sheet has a smooth wiping and good stain removal, has a sufficient cleaning power, has a smooth finish with no skin stickiness after use, prevents rough skin, and re-cleans when re-wiping. Hard to cause contamination. This wiping wet sheet is used as a wiping cloth, a physical sheet, or a podium sheet.

Claims

The scope of the claims

1. Silicone compound (a) 0.001 to 1% by mass,

Water-soluble amino acid or derivative thereof (b) 0.001 to 1% by mass,

Ami de betaine type amphoteric surfactants (c) 0. 001~0. 5 mass ^_0/0, water-soluble polyvalent alcohol (d) 0. 1 to 7 wt%, and

Atariru based polymer (e) 0. 0005~1 mass ^_0/0

A chemical solution for a wiping wet sheet,

The silicone compound ( _a ) force S, formula (I):

(In the formula, each of R ¹ represents a methyl group or a phenyl group, and at least one of the plurality of R ¹ is a methyl group; R ² represents a methyl group, a hydroxyl group, or R ³ , respectively. Z represents R ³ represents an alkylene group having 3 to 6 carbon atoms, and Z represents an amino group represented by —N (R ⁴ ) ₂ or one NR ⁴ (CH ₂ ) _a N (R ⁴ ) _2. Where R ⁴ represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and a is an integer of 2 to 6; and m and n are each an integer of 0 to 20000, and m + n == 30-20000), and

As the acrylic polymer (e) power configuration units, 2- (meth) and Atari port I Ruo key shell chill phosphorylcholine (el), (meth) 60 mass in total of acrylic acid alkyl Ruesuteru _(e 2) ^_0/0 Containing

Mass ratio between (e 1) and (e 2) (el) Z (e 2) force 100 0〜 2008/123115

twenty five

10/90 and

(E 1) force S, formula (I I):

R ⁵ OR ⁶

I II I _T ,

H ₂ C = C— C— OCH ₂ CH ₂ OPO (CH ₂ ) _n -N ⁺ ― R ⁷ (Π)

O O- R ⁸

(Wherein R ⁵ represents a hydrogen atom or a methyl group, R ⁶ , R ⁷ and R ⁸ each represents an alkyl group having 1 to 8 carbon atoms, and n is an integer of 2 to 4) ) Chemicals indicated by

2. In addition, hydroxycarboxylic alkylcelluloses (f) 0. 01~0. 5 mass ^_0/0 Oyopi cationized cellulose (g) 0, 01-0. Containing 5 mass ^_0/0, element the The chemical solution according to claim 1, wherein the mass ratio of (f) to (g) is (f) / (g) 1-5 to 5-1.

3. A wiping wet sheet comprising a substrate and the chemical solution according to claim 1 or 2 impregnated in the substrate.