JP2018015413A - Wet Wiper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wet wiper which can suppress adsorption of quaternary ammonium salt to a nonwoven fabric, impregnate solution containing the quaternary ammonium salt in a uniform state, at a short time, exhibit germicidal effect and antifungal effect, and suppress foam generation and slime feeling.SOLUTION: There is provided a wet wiper comprising a nonwoven fabric containing a cellulosic fiber, and solution containing the quaternary ammonium salt impregnated in the nonwoven fabric and an anionic surfactant which has a structure expressed by a formula (1) or (2). The formula (1) is R-COOX. (In the formula (1), Ris an alkyl group whose carbon number is 11-15. Xis univalent cation.) The formula (2) is R-O-(CHCHO)-CHCOOX. (In the formula (2), Ris an alkyl group whose carbon number is 12-16. Xis univalent cation. n is an integer of 1-10.)SELECTED DRAWING: None

Description

  The present invention relates to a wet wiper.

Conventionally, quaternary ammonium salts have been used as fungicides, preservatives, disinfectants, deodorizers, mainly for disinfection in hospitals and food processing plants, fungicides for textiles, paints, cosmetics, etc., and for preserving wood. It is used.
However, since the cellulose component of nonwoven fabric, which is commonly used for wet wipers, is negatively charged, quaternary ammonium salts are easily adsorbed and cannot be uniformly impregnated into the nonwoven fabric, resulting in deterioration of mold resistance. It is a cause.
For example, Patent Literature 1 impregnates a nonwoven fabric with a quaternary ammonium salt by impregnating a nonwoven fabric composed of wood pulp fibers and synthetic fibers with an aqueous disinfectant solution containing a quaternary ammonium salt. Wet wipers containing a disinfectant are disclosed.
Patent Document 2 discloses that the base cloth is impregnated with a liquid containing an amino acid type surfactant in a quaternary ammonium salt to prevent adsorption of the quaternary ammonium salt to the base cloth. Discloses a bactericidal disinfectant capable of exerting a bactericidal disinfecting effect.

JP 2009-256338 A JP 2000-191521 A

However, the wet wiper disclosed in Patent Document 1 has a problem that it takes time until the quaternary ammonium salt is uniformly impregnated into the nonwoven fabric, and the liquid impregnated in the wet wiper is foamed. .
In addition, the disinfectant disclosed in Patent Document 2 is a wet wiper impregnated with an aqueous solution due to the interaction between an amino acid type surfactant and a quaternary ammonium salt, and has a slimy feeling or a null feeling. Have the problem of

  Therefore, in view of the above problems, the present invention can suppress the adsorption of a quaternary ammonium salt to a nonwoven fabric containing cellulosic fibers and uniformly impregnate an aqueous solution containing a quaternary ammonium salt from the prior art. It is also possible to provide a wet wiper that can be effective in a short time, can effectively exhibit the bactericidal effect and antifungal property, and can simultaneously suppress the foaming of liquid, slime feeling, and null feeling.

As a result of intensive studies to solve the above problems, the present inventors have determined that a wet wiper obtained by impregnating a nonwoven fabric containing cellulosic fibers with an aqueous solution containing a quaternary ammonium salt and a specific anionic surfactant. However, the present inventors have found that the problems of the prior art can be solved, and have completed the present invention.
That is, the present invention is as follows.

[1]
A nonwoven fabric containing cellulosic fibers;
An aqueous solution containing a quaternary ammonium salt impregnated in the nonwoven fabric and an anionic surfactant having a structure represented by the following formula (1) or the following formula (2);
A wet wiper containing
R ₁ —COO ⁻ X ₁ ⁺ (1)
(In formula (1), R ₁ represents an alkyl group having 11 to 15 carbon atoms. X ₁ ⁺ represents a monovalent cation.)
R ₂ —O— (CH ₂ CH ₂ O) _n —CH ₂ COO ⁻ X ₂ ⁺ (2)
(In formula (2), R ₂ represents an alkyl group having 12 to 16 carbon atoms. X ₂ ⁺ represents a monovalent cation. N represents a number from 1 to 10.)
[2]
The anionic surfactant includes an anionic surfactant having a structure represented by the formula (2),
In the formula (2), R ₂ is an alkyl group having 12 carbons.
The wet wiper according to the above [1].
[3]
The anionic surfactant includes an anionic surfactant having a structure represented by the formula (2),
In said formula (2), n is a number of 4-6,
The wet wiper according to [1] or [2].
[4]
The anionic surfactant includes an anionic surfactant having a structure represented by the formula (2),
In the formula (2), X ₂ ⁺ is a sodium ion.
The wet wiper according to any one of [1] to [3].
[5]
The anionic surfactant includes an anionic surfactant having a structure represented by the formula (1),
In the formula (1), R ₁ is an alkyl group having 11 carbon atoms.
The wet wiper according to any one of [1] to [4].
[6]
The anionic surfactant includes an anionic surfactant having a structure represented by the formula (1),
In the formula (1), X ₁ ⁺ is a sodium ion.
The wet wiper according to any one of [1] to [5].
[7]
The quaternary ammonium salt is an alkylbenzyldimethylammonium salt;
The wet wiper according to any one of [1] to [6].
[8]
The wet wiper according to [7], wherein the alkyl group of the alkylbenzyldimethylammonium salt is at least one selected from the group consisting of an octyl group, a decyl group, a lauryl group, a myristyl group, and a cetyl group.
[9]
The wet wiper according to any one of [1] to [8], wherein the cellulosic fiber is wood pulp fiber.
[10]
The wet wiper according to any one of [1] to [9], wherein the nonwoven fabric further includes a polyester fiber.
[11]
The wet wiper according to any one of [1] to [10], wherein the nonwoven fabric is wound into a roll.

  According to the present invention, it is possible to suppress the adsorption of the quaternary ammonium salt to the nonwoven fabric containing the cellulosic fiber and uniformly impregnate the aqueous solution containing the quaternary ammonium salt in a shorter time than the conventional technique. It is possible to obtain a wet wiper that can effectively exhibit the bactericidal effect and antifungal property, and can simultaneously suppress the bubbling of the liquid, the slimy feeling, and the null feeling.

Hereinafter, a mode for carrying out the present invention (hereinafter simply referred to as “the present embodiment”) will be described in detail.
The present invention is not limited to the following embodiment, and can be implemented with various modifications within the scope of the gist.

[Wet wiper]
The wet wiper of this embodiment is
A nonwoven fabric containing cellulosic fibers;
An aqueous solution containing a quaternary ammonium salt impregnated in the nonwoven fabric and an anionic surfactant having a structure represented by the following formula (1) or the following formula (2);
Containing.
R ₁ —COO ⁻ X ₁ ⁺ (1)
(In formula (1), R ₁ represents an alkyl group having 11 to 15 carbon atoms. X ₁ ⁺ represents a monovalent cation.)
R ₂ —O— (CH ₂ CH ₂ O) _n —CH ₂ COO ⁻ X ₂ ⁺ (2)
(In formula (2), R ₂ represents an alkyl group having 12 to 16 carbon atoms. X ₂ ⁺ represents a monovalent cation. N represents a number from 1 to 10.)

(Quaternary ammonium salt)
The quaternary ammonium salt used for the wet wiper of this embodiment is not particularly limited as long as it has a quaternary ammonium salt structure in the molecule as an active ingredient having a bactericidal action. Examples of quaternary ammonium salts include, but are not limited to, alkyl trimethyl ammonium salts, polyoxyethylene alkyl methyl ammonium salts, benzalkonium chloride, alkyl benzyl dimethyl ammonium salts, alkyl pyridinium salts, and the like. It is done.

In the quaternary ammonium salt used in the wet wiper of the present embodiment, as the alkyl group, from the viewpoint of sterilization performance, since it is a long chain alkyl group and exhibits a significant sterilizing power, a saturated hydrocarbon having 8 to 16 carbon atoms. It is preferably a group, more preferably an octyl group, a decyl group, a lauryl group, a myristyl group, and a cetyl group, and even more preferably a lauryl group.
The quaternary ammonium salt is preferably a salt with halide ions such as F ⁻ , Cl ⁻ , Br ⁻ and I ⁻ , NO ⁻ , SO ₄ ^2−, etc., and Cl ⁻ having a high electronegativity. And a salt thereof is more preferable.
In this embodiment, these quaternary ammonium salts may be used singly or in combination of two or more.

  In the present embodiment, the quaternary ammonium salt is preferably an alkylbenzyldimethylammonium salt from the viewpoint of bactericidal performance, more preferably an alkyl group having 8 to 16 carbon atoms, and even more preferably laurylbenzyldimethylammonium. Salt.

The content of the quaternary ammonium salt in the aqueous solution impregnated in the nonwoven fabric of the wet wiper of the present embodiment is an aqueous solution from the viewpoint that skin irritation can be suppressed while having sufficient bactericidal performance. In the inside, it is preferable that it is 0.01-30 mass%, More preferably, it is 0.1-5 mass%.
The bactericidal effect of the quaternary ammonium salt in the wet wiper of the present embodiment is preferably a bactericidal action against bacteria, but may be an action of suppressing the growth of bacteria due to a bacteriostatic action. .
In this embodiment, due to the sterilizing effect of the quaternary ammonium salt, it has cleansing, sterilizing, and sterilizing actions as a wet wiper.
In addition, since the quaternary ammonium salt is impregnated into the nonwoven fabric as a sterilizing and disinfecting aqueous solution, the wiping effect by the nonwoven fabric and the sterilizing effect of the quaternary ammonium salt can be used as a wet wiper for cleaning, sterilization, and removal. Has fungal action and the like.
Since the wet wiper of this embodiment has little deterioration of the sterilization effect by volatilization of a quaternary ammonium salt, etc., it maintains the sterilization effect over a long period of time.

(Anionic surfactant)
The anionic surfactant used for the wet wiper of this embodiment has a structure represented by the following formula (1) or the following formula (2).
R ₁ —COO ⁻ X ₁ ⁺ (1)
(In formula (1), R ₁ represents an alkyl group having 11 to 15 carbon atoms. X ₁ ⁺ represents a monovalent cation.)
R ₂ —O— (CH ₂ CH ₂ O) _n —CH ₂ COO ⁻ X ₂ ⁺ (2)
(In formula (2), R ₂ represents an alkyl group having 12 to 16 carbon atoms. X ₂ ⁺ represents a monovalent cation. N represents a number from 1 to 10.)

By including an anionic surfactant having the structure of the above formula (1) or (2), the effect of suppressing adsorption of a quaternary ammonium salt to a nonwoven fabric containing cellulosic fibers can be obtained. It is possible to suppress foaming of the aqueous solution containing, slime feeling, and null feeling.
In this embodiment, the said anionic surfactant may be used individually by 1 type, and may be used in combination of 2 or more type.

In the anionic surfactant having the structure represented by the above formula (1) in the wet wiper of the present embodiment, the effect of suppressing adsorption to a nonwoven fabric containing a cellulose-based quaternary ammonium salt, slime feeling and null feeling From the viewpoint of obtaining an effect, R ₁ is preferably an alkyl group having 11 carbon atoms, and from the same viewpoint, X ₁ ⁺ is preferably an alkali metal ion or an ammonium ion, such as a sodium ion, potassium ion, More preferred is ethanolammonium ion, and even more preferred is sodium ion.

In the anionic surfactant having the structure represented by the above formula (2) in the wet wiper of the present embodiment, the effect of suppressing adsorption to a non-woven fabric containing a cellulose-based fiber of a quaternary ammonium salt, the slime feeling, and the null feel feeling are suppressed. From the viewpoint of obtaining an effect, R ₂ is preferably an alkyl group having 12 carbon atoms. From the same viewpoint, n is preferably a number of 4 to 6. From the same viewpoint, X ₂ ⁺ represents an alkali. Metal ions and ammonium ions are preferred, sodium ions, potassium ions and triethanolammonium ions are more preferred, and sodium ions are even more preferred.

  The content of the anionic surfactant represented by the above formula (1) or (2) in the aqueous solution in the wet wiper of the present embodiment can sufficiently exhibit the sterilizing performance of the quaternary ammonium salt, and cellulose From the viewpoint that the effect of suppressing adsorption to the nonwoven fabric containing the system fibers can also be exhibited, the content in the aqueous solution is preferably 0.01 to 10% by mass, and more preferably 0.1 to 5% by mass.

(Other ingredients)
In the aqueous solution containing the quaternary ammonium salt used in the wet wiper of the present embodiment and the anionic surfactant, other components may be blended as necessary within a range not impairing the purpose of the present embodiment. it can.
Examples of other components include anionic surfactants other than the anionic surfactants of the above formulas (1) and (2), lower alcohols, chelating agents, preservatives, coloring agents, fragrances, and stabilizers. Can be mentioned.

The surfactants other than the anionic surfactants represented by the above formulas (1) and (2) are not particularly limited, and examples thereof include nonionic surfactants and anionic interfaces of the anionic surfactants. An activator, a cationic surfactant, an amphoteric surfactant, etc. are mentioned.
Nonionic surfactants include, but are not limited to, for example, glycerin fatty acid esters such as glycerin fatty acid ester and glyceryl monostearate; polyglyceryl monooleate, polyglyceryl pentaoleate, polyglyceryl dekaoleate, monolaurin Polyglycerin fatty acid esters such as hexaglyceryl acid, decaglyceryl monolaurate, decaglyceryl monomyristate, decaglyceryl monostearate, decaglyceryl monoisostearate; polyoxyethylene glycerin fatty acid esters such as polyoxyethylene glyceryl monostearate Sorbitan fatty acid esters such as sorbitan monolaurate, sorbitan monooleate and sorbitan trioleate; polio monostearate Polyoxyethylene sorbitan fatty acid esters such as siethylene sorbitan and polyoxyethylene sorbitan trioleate; polyoxyethylene sorbite fatty acid esters such as polyoxyethylene sorbite monolaurate and polyoxyethylene sorbite tetraoleate; sucrose laurate Polyoxyethylene lanolin, lanolin alcohol, beeswax derivatives such as polyoxyethylene lanolin, polyoxyethylene sorbit beeswax; polyoxyethylene castor oil such as polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil・ Hardened castor oils; Polyoxyethylene sterols such as polyoxyethylene cholestanol ether; Hydrogenated sterols; Ethylene monostearate Call, polyethylene glycol fatty acid esters such as polyethylene glycol monooleate;
Polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether, polyoxyethylene cetyl ether and polyoxyethylene behenyl ether; polyoxyethylene such as polyoxyethylene polyoxypropylene cetyl ether and polyoxyethylene polyoxypropylene decyl tetradecyl ether Polyoxypropylene alkyl ethers; polyoxyethylene alkylphenyl ethers such as polyoxyethylene nonylphenyl ether; polyoxyethylene alkylamines and fatty acid amides such as polyoxyethylene stearamide; polyoxyethylene octylphenyl ether Oxyethylene alkylphenyl ethers; alkyldimethylamine oxides such as stearyldimethylamine oxide Etc., and the like.
Examples of the anionic surfactant other than the anionic surfactants represented by the above formulas (1) and (2) include, but are not limited to, alkylbenzene sulfonates such as sodium dodecylbenzene sulfonate; Fatty acid salts such as sodium phosphate; Phosphate salts such as polyoxyethylene alkyl ether phosphate such as sodium polyoxyethylene lauryl ether and sodium polyoxyethylene cetyl ether; N such as sodium N-lauroyl-L-glutamate -Acylaminohydrochloric acids; polyoxyethylene alkyl ether phosphates such as polyoxyethylene lauryl ether phosphoric acid; N-acyl taurine salts such as sodium lauroylmethyl taurine and sodium myristoyl methyl taurine; tetradecene sulfone Polyoxyethylene alkyl ether sulfate salts such as sodium polyoxyethylene lauryl ether sulfate; alkyl sulfates such as sodium lauryl sulfate; sulfonates such as sodium lauryl di aminoethyl sodium glycine, and the like alkyldiaminoethylglycine hydrochloride.
Examples of the cationic surfactant include, but are not limited to, acyl basic amino acid alkyl ester salts such as N-cocoyl arginine ethyl ester pyrrolidone carboxylate and N-lauroyl lysine ethyl ester hydrochloride; Primary amine salts such as amine hydrochlorides; secondary amine salts such as dilaurylamine acetate; tertiary amine salts; fatty acid amidoguanidinium salts; alkyltrialkylene glycols such as lauryltriethylene glycol ammonium hydroxide An ammonium salt etc. are mentioned.
Examples of amphoteric surfactants include, but are not limited to, betaine compounds such as alkyldimethylaminoacetic acid betaine and acylamidopropyldimethylaminoacetic acid betaine; N-alkyl-N-carboxymethyl-N-hydroxy Imidazolinium compounds such as ethylimidazolinium betaine, N-alkyl-N-carboxymethyl-N-hydroxyethylethylenediamine / lauryl sulfate and salts thereof; glycine-type compounds such as polyoctylpolyaminoethylglycine; alkylaminopropionic acid, Examples include aminopropionic acid type compounds such as alkylaminodipropionic acid; and phospholipids such as lecithin.
In the present embodiment, these surfactants may be used alone or in combination of two or more.

Examples of the lower alcohol include water-soluble alcohols having 1 to 4 carbon atoms.
The lower alcohol is not limited to the following, for example, methanol, ethanol, propanol, isopropanol, methoxyethanol, ethoxyethanol, methoxypropanol, monools such as methoxyisopropanol, ethylene glycol, propylene glycol, propanediol, Examples thereof include diols such as butanediol, methylpropanediol, diethylene glycol and butynediol, and polyols such as glycerin, butanetriol and erythritol.
In the present embodiment, these lower alcohols may be used singly or in combination of two or more.

The chelating agent is not particularly limited as long as it has a metal capturing action. For example, complexant, alanine, ethylenediaminehydroxyethyl triacetate trisodium, edetic acid, edetate disodium, edetate disodium calcium, edetate trisodium, Examples include edetate tetrasodium, sodium citrate, citric acid, gluconic acid, tartaric acid, phytic acid, sodium polyphosphate, and sodium metaphosphate.
In this embodiment, these chelating agents may be used individually by 1 type, and may be used in combination of 2 or more types.

Examples of preservatives include, but are not limited to, for example, benzoic acid, sodium benzoate, undecylenic acid, salicylic acid, sorbic acid, potassium sorbate, dehydroacetic acid, sodium dehydroacetate, paraoxybenzoates and the like Organic acids such as salts and derivatives thereof; isopropylmethylphenol, chlorhexidine gluconate, cresol, chlorothymol, chlorophenesin, chlorocresol, dichloroxylenol, dichlorobenzyl alcohol, thiobischlorophenol, thymol, trichlorocarbanilide, trichlorohydroxy Diphenyl ether, sodium phenoxide, parachlorophenol, halocarban, phenylethyl alcohol, phenylphenol, sodium phenylphenol, phenoxy Phenols such as tanol, phenol, fexachlorophene, benzyl alcohol; photosensitizers such as platonin, pionine, Luminekis, photosensitizer NK143; plant extracts having antibacterial activity such as tea extract, hinokitiol, apple extract, polylysine Glutaryl, chloramine T, chlorhexidine, dipromopropamidine diisethionate, zinc pyrithione, triclosan, pyrithione Na, furfural, chloramine T and the like.
In this embodiment, these preservatives may be used individually by 1 type, and may be used in combination of 2 or more types.

(Nonwoven fabric)
The nonwoven fabric impregnated with the aqueous solution containing the quaternary ammonium salt and the anionic surfactant of the formula (1) or formula (2) in the wet wiper of this embodiment is a nonwoven fabric containing cellulosic fibers.
The cellulosic fiber used in the wet wiper of the present embodiment is not particularly limited as long as the fiber surface has a negative charge and contains cellulose or is derived from cellulose. For example, rayon fiber Polynosic fiber, cupra fiber, lyocell fiber, acetate fiber, wood pulp fiber, cotton fiber and the like.
In the wet wiper of this embodiment, these cellulose fibers may be used alone or in combination of two or more.

  In the nonwoven fabric containing the cellulosic fiber used for the wet wiper of this embodiment, the nonwoven fabric containing a wood pulp fiber is preferable and the nonwoven fabric containing a polyester fiber is more preferable from the viewpoint of the effect of suppressing wiping.

The polyester fiber that can be used for the nonwoven fabric of the wet wiper of the present embodiment is not particularly limited. For example, polyester such as polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, and copolyester; linear Polyolefins such as low density polyethylene, low density polyethylene, high density polyethylene, and polypropylene; polyamides such as nylon 6, nylon 66, nylon 610, and nylon 46; acrylic fibers such as polyacrylonitrile; Examples thereof include a combination of terephthalate and polyethylene, polypropylene, polyethylene, and polyamide fiber.
The nonwoven fabric of the wet wiper according to the present embodiment preferably includes polyester fibers because it has air permeability and can be flexible.
In the wet wiper of this embodiment, these polyester fibers may be used individually by 1 type, and may be used in combination of 2 or more types.
In the wet wiper of the present embodiment, the basis weight of the nonwoven fabric is preferably 10 to 120 g / m ² and more preferably 15 to 80 g / m ² from the viewpoint of ease of handling during use.

(Adsorption dissolution rate of quaternary ammonium salt to nonwoven fabric)
In the wet wiper of this embodiment, the nonwoven fabric containing cellulosic fibers is uniformly impregnated with an aqueous solution containing a quaternary ammonium salt and the anionic surfactant of the formula (1) or the formula (2). As an index indicating that the quaternary ammonium salt is adsorbed and dissolved in the non-woven fabric containing cellulosic fibers, an index is shown.
The “adsorption dissolution rate (mass%) of the quaternary ammonium salt to the nonwoven fabric” is impregnated with an aqueous solution containing the quaternary ammonium salt and the anionic surfactant of the formula (1) or the formula (2). When the non-woven fabric containing cellulosic fibers was immersed in water, the mass of the quaternary ammonium salt dissolved in water was calculated and obtained as a ratio to the mass of the non-woven fabric containing cellulosic fibers.
The adsorption dissolution rate is preferably 0.5% by mass or more uniformly, more preferably 0.6% by mass or more, and further preferably 0.7% by mass.
That the adsorption dissolution rate is uniformly 0.5% by mass or more means that the adsorption dissolution rate is 0.5% by mass or more in an arbitrary portion of the nonwoven fabric containing cellulosic fibers.
When the adsorption / dissolution rate is 0.5% by mass or more, a wet wiper excellent in antifungal and bactericidal properties can be obtained.

(Method of impregnating non-woven fabric with aqueous solution)
As a method for impregnating the nonwoven fabric used in the present embodiment with an aqueous solution containing a quaternary ammonium salt and an anionic surfactant represented by the above formulas (1) and (2), the aqueous solution contains a cellulose fiber. There is no particular limitation as long as it is a method of uniformly impregnating the entire surface.
For example, a non-woven fabric wound up in a roll shape by putting the non-woven fabric wound up in a roll shape in a bottle container so that the roll surface (referred to as a roll-shaped surface) is in contact with the bottom of the bottle container. And a method of impregnating by introducing an aqueous solution containing a quaternary ammonium salt and the above anionic surfactant from the upper roll surface side.
The uniform impregnation of the aqueous solution with the nonwoven fabric means that the quaternary ammonium salt and the anionic surfactant contained in the aqueous solution are present uniformly on the nonwoven fabric surface. Can be prevented.
In the wet wiper of the present embodiment, the ratio of impregnating the nonwoven fabric with the aqueous solution containing the quaternary ammonium salt and the anionic surfactant is quaternary ammonium salt with respect to 1 part by mass of the nonwoven fabric from the viewpoint of bactericidal effect. And the aqueous solution containing the anionic surfactant is preferably 0.5 parts by mass or more, and the ratio is preferably 5 parts by mass or less in consideration of suppressing wiping.

(Form of wet wiper)
Although the form of the wet wiper of this embodiment is not specifically limited, For example, the non-woven fabric containing a cellulosic fiber is cut into a sheet shape, Z-folded, and overlapped to form a quaternary ammonium salt and the anionic surfactant. Examples include bottles that have been impregnated with an aqueous solution containing water and wrapped in pillows, and bottles in which a nonwoven fabric containing cellulosic fibers is wound into a roll and impregnated with an aqueous solution containing a quaternary ammonium salt and the anionic surfactant. From the viewpoint of ease of use, it is preferable that the nonwoven fabric containing cellulosic fibers is wound into a roll.

(Use of wet wiper)
The aqueous solution containing the quaternary ammonium salt used in the wet wiper of the present embodiment and the anionic surfactant shown in the above formulas (1) and (2) is limited only to bacteria such as bacteria and fungi (including mold). It also has a bactericidal effect against viruses. Therefore, the wet wiper of this embodiment can also be used for virus infection prevention. Especially, since it is excellent in the bactericidal effect with respect to the virus which does not have an envelope (outer shell), such as a norovirus, it can utilize suitably for the infection prevention with respect to the virus which does not have an envelope (outer shell), such as a norovirus.

Hereinafter, the present embodiment will be specifically described with reference to specific examples and comparative examples, but the present embodiment is not limited to the following examples.
In addition, the evaluation method and measurement method in an Example and a comparative example are as follows.

<Measurement and evaluation of adsorption dissolution rate>
After each wet wiper described in the Examples and Comparative Examples is wound up in a roll shape, each is placed so that the roll-shaped surface is in contact with the bottom of the bottle container, and sealed in a state impregnated with an impregnating liquid. After 2 weeks and 5 weeks, take out the non-woven fabric located on the outside, center, and inside of the roll, cut them into 4 equal parts, and immerse them in 20 g of distilled water for 3 hours. After extraction, the concentration of the quaternary ammonium salt dissolved in water was quantified with a spectrophotometer (Shimadzu Corporation UV-2700). Moreover, the adsorption dissolution rate was calculated | required from the following formula.
[a formula]
Adsorption dissolution rate (%) = mass of quaternary ammonium salt extracted from water in test piece (W1) / mass of test piece nonwoven fabric (W2) × 100
W1 = Concentration (mass%) of quaternary ammonium salt in the extraction aqueous solution of the test piece × {Mass of extraction water (W4) + Mass of water in the test piece nonwoven fabric (W3)}
Here, when n rolls are wound, the roll outer side means the first sheet counted from the outside, the roll center means the n / 2 sheet, and the roll inner side means n sheets. It means the most central sheet of the eye roll.
The evaluation criteria are as follows.
A: In any test piece, the adsorption dissolution rate is 0.5% or more. O: There is one test piece having an adsorption dissolution rate lower than 0.5%.
(Triangle | delta): Two test pieces in which an adsorption dissolution rate falls below 0.5% exist.
X: There are three or more test pieces having an adsorption dissolution rate lower than 0.5%.

<Evaluation of foaming property of aqueous solution>
300 g of an aqueous solution containing a quaternary ammonium salt to be impregnated into the nonwoven fabric described in Examples and Comparative Examples (trade name: National Mixer MX-V100 (manufactured by Panasonic)) Width 16 cm Depth 22 cm Height 39 cm Rotation speed 10,000 rotations / Min) and stirred for 30 seconds, and the height of the foam after 5 minutes of standing was measured.
The temperature of the aqueous solution was 25 ° C.
The evaluation criteria are as follows.
◎: Bubble height is 60 mm or less ○: Bubble height is more than 60 mm and 80 mm or less △: Bubble height is more than 80 mm and 100 mm or less ×: Bubble height is more than 100 mm

<Evaluation of slime feeling and null feeling>
Each of the wet wipers described in Examples and Comparative Examples was touched by 10 panelists with bare hands, and the slimy feeling and the null feeling were evaluated.
◎: 0 to 1 out of 10 people who felt slimy and / or null sensation ○: 2 to 3 people who felt slimy and / or null sensation △: Numerous and / or null sensation 4-5 out of 10 people who felt a feeling ×: 6-10 out of 10 people who felt a slimy feeling and / or a null feeling

[Example 1]
An anionic surfactant of the above formula (1) in which laurylbenzyldimethylammonium chloride has a solid content of 0.75 wt%, R ₁ is a linear alkyl group having 11 carbon atoms, and X ₁ ⁺ is Na ⁺ has a solid content of 0 An aqueous solution prepared with a composition of 0.5 wt% and purified water 98.75 wt% was obtained.
Next, a nonwoven fabric composed of 54 wt% wood pulp fibers and 46 wt% PET fibers was impregnated with the aqueous solution having a mass of 250% of the mass of the nonwoven fabric to obtain a wet wiper.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

[Example 2]
An anionic surfactant of the above formula (1) in which laurylbenzyldimethylammonium chloride has a solid content of 0.75 wt%, R ₁ is a linear alkyl group having 11 carbon atoms, and X ₁ ⁺ is Na ⁺ has a solid content of 0 An aqueous solution prepared with a composition of 0.5 wt% and purified water 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40 wt% rayon fibers, 34 wt% wood pulp fibers, and 26 wt% PET fibers with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 3
An anionic surfactant of the above formula (1) in which laurylbenzyldimethylammonium chloride has a solid content of 0.75 wt%, R ₁ is a linear alkyl group having 11 carbon atoms, and X ₁ ⁺ is Na ⁺ has a solid content of 0 An aqueous solution prepared with a composition of 0.5 wt% and purified water 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40% by weight of wood pulp fiber and 60% by weight of cotton fiber with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 4
Anionic interface of formula (2) wherein laurylbenzyldimethylammonium chloride has a solid content of 0.75 wt%, R ₂ is a linear alkyl group having 12 carbon atoms, n is 4.5, and X ₂ ⁺ is Na ⁺ An aqueous solution in which the activator was prepared with a solid content of 0.5 wt% and purified water of 98.75 wt% was obtained.
Next, a nonwoven fabric composed of 54 wt% wood pulp fibers and 46 wt% PET fibers was impregnated with the aqueous solution having a mass of 250% of the mass of the nonwoven fabric to obtain a wet wiper.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 5
Anionic interface of formula (2) wherein laurylbenzyldimethylammonium chloride has a solid content of 0.75 wt%, R ₂ is a linear alkyl group having 12 carbon atoms, n is 4.5, and X ₂ ⁺ is Na ⁺ An aqueous solution in which the activator was prepared with a solid content of 0.5 wt% and purified water of 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40 wt% rayon fibers, 34 wt% wood pulp fibers, and 26 wt% PET fibers with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 6
Anionic interface of formula (2) wherein laurylbenzyldimethylammonium chloride has a solid content of 0.75 wt%, R ₂ is a linear alkyl group having 12 carbon atoms, n is 4.5, and X ₂ ⁺ is Na ⁺ An aqueous solution in which the activator was prepared with a solid content of 0.5 wt% and purified water of 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40% by weight of wood pulp fiber and 60% by weight of cotton fiber with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 7
An anionic surfactant of the above formula (1) in which laurylbenzyldimethylammonium chloride has a solid content of 0.75 wt%, R ₁ is a linear alkyl group having 11 carbon atoms, and X ₁ ⁺ is Na ⁺ has a solid content of 0 An aqueous solution prepared with a composition of 0.5 wt% and purified water 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating the non-woven fabric composed of 60% by weight of rayon fiber, 20% by weight of PET fiber, 11% by weight of PE fiber, and 9% by weight of PP fiber with the aqueous solution having a mass of 250% of the mass of the non-woven fabric. .
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 8
Anionic interface of formula (2) wherein laurylbenzyldimethylammonium chloride has a solid content of 0.75 wt%, R ₂ is a linear alkyl group having 12 carbon atoms, n is 4.5, and X ₂ ⁺ is Na ⁺ An aqueous solution in which the activator was prepared with a solid content of 0.5 wt% and purified water of 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating the non-woven fabric composed of 60% by weight of rayon fiber, 20% by weight of PET fiber, 11% by weight of PE fiber, and 9% by weight of PP fiber with the aqueous solution having a mass of 250% of the mass of the non-woven fabric. .
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 9
An anionic surfactant of the above formula (1) in which laurylbenzyldimethylammonium chloride has a solid content of 0.75 wt%, R ₁ is a linear alkyl group having 13 carbon atoms, and X ₁ ⁺ is K ⁺ has a solid content of 0 An aqueous solution prepared with a composition of 0.5 wt% and purified water 98.75 wt% was obtained.
Next, a nonwoven fabric composed of 54 wt% wood pulp fibers and 46 wt% PET fibers was impregnated with the aqueous solution having a mass of 250% of the mass of the nonwoven fabric to obtain a wet wiper.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 10
Solid anionic surfactant of the above formula (1) in which laurylbenzyldimethylammonium chloride has a solid content of 0.75 wt%, R ₁ is a linear alkyl group having 15 carbon atoms, and X ₁ ⁺ is a triethanolammonium ion. An aqueous solution prepared with a composition of 0.5 wt% and purified water 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40 wt% rayon fibers, 34 wt% wood pulp fibers, and 26 wt% PET fibers with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 11
Anionic surfactant of the above formula (2), wherein laurylbenzyldimethylammonium chloride is 0.75 wt% in solid content, R ₂ is a linear alkyl group having 12 carbon atoms, n is 4, and X ₂ ⁺ is Na ⁺ An aqueous solution prepared with a composition having a solid content of 0.5 wt% and purified water of 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40 wt% rayon fibers, 34 wt% wood pulp fibers, and 26 wt% PET fibers with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 12
Anionic surfactant of the above formula (2) wherein laurylbenzyldimethylammonium chloride has a solid content of 0.75 wt%, R ₂ is a linear alkyl group having 12 carbon atoms, n is 6, and X ₂ ⁺ is Na ⁺ An aqueous solution prepared with a composition having a solid content of 0.5 wt% and purified water of 98.75 wt% was obtained.
Next, a nonwoven fabric composed of 54 wt% wood pulp fibers and 46 wt% PET fibers was impregnated with the aqueous solution having a mass of 250% of the mass of the nonwoven fabric to obtain a wet wiper.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 13
Anionic surfactant of the above formula (2) wherein laurylbenzyldimethylammonium chloride has a solid content of 0.75 wt%, R ₂ is a linear alkyl group having 14 carbon atoms, n is 4, and X ₂ ⁺ is K ⁺ An aqueous solution prepared with a composition having a solid content of 0.5 wt% and purified water of 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40 wt% rayon fibers, 34 wt% wood pulp fibers, and 26 wt% PET fibers with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 14
Anionic surfactant of the above formula (2) wherein laurylbenzyldimethylammonium chloride has a solid content of 0.75 wt%, R ₂ is a linear alkyl group having 14 carbon atoms, n is 8, and X ₂ ⁺ is Na ⁺ An aqueous solution prepared with a composition having a solid content of 0.5 wt% and purified water of 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating the non-woven fabric composed of 60% by weight of rayon fiber, 20% by weight of PET fiber, 11% by weight of PE fiber, and 9% by weight of PP fiber with the aqueous solution having a mass of 250% of the mass of the non-woven fabric. .
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 15
Anionic interface of the above formula (2) wherein laurylbenzyldimethylammonium chloride is 0.75 wt% solid content, R ₂ is a straight chain alkyl group having 16 carbon atoms, n is 2 and X ₂ ⁺ is a triethanolammonium ion An aqueous solution in which the activator was prepared with a solid content of 0.5 wt% and purified water of 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40% by weight of wood pulp fiber and 60% by weight of cotton fiber with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 16
An anionic surfactant of the above formula (1) in which benzalkonium chloride is 0.75 wt% in solid content, R ₁ is a linear alkyl group having 11 carbon atoms, and X ₁ ⁺ is Na ⁺ is a solid content of 0. An aqueous solution prepared with a composition of 5 wt% and purified water 98.75 wt% was obtained.
Next, a nonwoven fabric composed of 54 wt% wood pulp fibers and 46 wt% PET fibers was impregnated with the aqueous solution having a mass of 250% of the mass of the nonwoven fabric to obtain a wet wiper.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 17
Anionic surface activity of the above formula (2) wherein benzalkonium chloride has a solid content of 0.75 wt%, R ₂ is a linear alkyl group having 12 carbon atoms, n is 4.5, and X ₂ ⁺ is Na ⁺ An aqueous solution prepared with a composition having a solid content of 0.5 wt% and purified water of 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40 wt% rayon fibers, 34 wt% wood pulp fibers, and 26 wt% PET fibers with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 18
An anionic surfactant of the above formula (2) comprising benzalkonium chloride in a solid content of 0.75 wt%, R ₂ is a linear alkyl group having 14 carbon atoms, n is 8, and X ₂ ⁺ is Na ^+. An aqueous solution prepared with a composition having a solid content of 0.5 wt% and purified water of 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40% by weight of wood pulp fiber and 60% by weight of cotton fiber with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 19
Anionic surfactant of the above formula (2) wherein cetylpyridinium chloride has a solid content of 0.75 wt%, R ₂ is a linear alkyl group having 12 carbon atoms, n is 4.5, and X ₂ ⁺ is Na ⁺ An aqueous solution prepared with a composition having a solid content of 0.5 wt% and purified water of 98.75 wt% was obtained.
Next, a nonwoven fabric composed of 54 wt% wood pulp fibers and 46 wt% PET fibers was impregnated with the aqueous solution having a mass of 250% of the mass of the nonwoven fabric to obtain a wet wiper.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 20
An anionic surfactant of the above formula (1) in which cetylpyridinium chloride has a solid content of 0.75 wt%, R ₁ is a linear alkyl group having 11 carbon atoms, and X ₁ ⁺ is Na ⁺ has a solid content of 0.5 wt%. %, An aqueous solution prepared with a composition of 98.75 wt% purified water was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40 wt% rayon fibers, 34 wt% wood pulp fibers, and 26 wt% PET fibers with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

Example 21
Anionic surfactant of the above formula (2), wherein cetylpyridinium chloride is 0.75 wt% in solid content, R ₂ is a linear alkyl group having 16 carbon atoms, n is 2, and X ₂ ⁺ is triethanolammonium ion An aqueous solution prepared with a composition having a solid content of 0.5 wt% and purified water of 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating the non-woven fabric composed of 60% by weight of rayon fiber, 20% by weight of PET fiber, 11% by weight of PE fiber, and 9% by weight of PP fiber with the aqueous solution having a mass of 250% of the mass of the non-woven fabric. .
The structure of the wet wiper is shown in [Table 1] below, and the evaluation results are shown in [Table 3] below.

[Comparative Example 1]
An aqueous solution prepared from laurylbenzyldimethylammonium chloride in a composition having a solid content of 0.75 wt% and purified water of 99.25 wt% was obtained.
Next, a nonwoven fabric composed of 54 wt% wood pulp fibers and 46 wt% PET fibers was impregnated with the aqueous solution having a mass of 250% of the mass of the nonwoven fabric to obtain a wet wiper.
The structure of the wet wiper is shown in [Table 2] below, and the evaluation results are shown in [Table 3] below.

[Comparative Example 2]
An aqueous solution in which benzalkonium chloride was prepared with a composition of 0.75 wt% solid content and 99.25 wt% purified water was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40 wt% rayon fibers, 34 wt% wood pulp fibers, and 26 wt% PET fibers with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 2] below, and the evaluation results are shown in [Table 3] below.

[Comparative Example 3]
An aqueous solution in which cetylpyridinium chloride was prepared with a solid content of 0.75 wt% and purified water of 99.25 wt% was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40% by weight of wood pulp fiber and 60% by weight of cotton fiber with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 2] below, and the evaluation results are shown in [Table 3] below.

[Comparative Example 4]
An aqueous solution prepared from laurylbenzyldimethylammonium chloride in a composition having a solid content of 0.75 wt% and purified water of 99.25 wt% was obtained.
Next, a wet wiper was obtained by impregnating the non-woven fabric composed of 60% by weight of rayon fiber, 20% by weight of PET fiber, 11% by weight of PE fiber, and 9% by weight of PP fiber with the aqueous solution having a mass of 250% of the mass of the non-woven fabric. .
The structure of the wet wiper is shown in [Table 2] below, and the evaluation results are shown in [Table 3] below.

[Comparative Example 5]
Prepared with a composition of 0.75 wt% solid content of laurylbenzyldimethylammonium chloride, 0.5 wt% solid content of N-coconut oil fatty acid acyl L-arginine ethyl DL-pyrrolidone carboxylate and 98.75 wt% purified water An aqueous solution was obtained.
Next, a nonwoven fabric composed of 54 wt% wood pulp fibers and 46 wt% PET fibers was impregnated with the aqueous solution having a mass of 250% of the mass of the nonwoven fabric to obtain a wet wiper.
The structure of the wet wiper is shown in [Table 2] below, and the evaluation results are shown in [Table 3] below.

[Comparative Example 6]
Prepared with a composition of 0.75 wt% solid content of laurylbenzyldimethylammonium chloride, 0.5 wt% solid content of N-coconut oil fatty acid acyl L-arginine ethyl DL-pyrrolidone carboxylate and 98.75 wt% purified water An aqueous solution was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40% by weight of wood pulp fiber and 60% by weight of cotton fiber with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 2] below, and the evaluation results are shown in [Table 3] below.

[Comparative Example 7]
An aqueous solution prepared with a composition containing benzalkonium chloride in a solid content of 0.75 wt%, sodium N-lauroyl-L-glutamate in a solid content of 0.5 wt%, and purified water of 98.75 wt% was obtained.
Next, a wet wiper was obtained by impregnating a non-woven fabric composed of 40 wt% rayon fibers, 34 wt% wood pulp fibers, and 26 wt% PET fibers with the aqueous solution having a mass of 250% of the mass of the non-woven fabric.
The structure of the wet wiper is shown in [Table 2] below, and the evaluation results are shown in [Table 3] below.

[Comparative Example 8]
An aqueous solution in which cetylpyridinium chloride was prepared at a solid content of 0.75 wt%, N-lauroyl-L-glutamate sodium was prepared at a solid content of 0.5 wt%, and purified water was prepared at 98.75 wt%.
Next, a wet wiper was obtained by impregnating the non-woven fabric composed of 60% by weight of rayon fiber, 20% by weight of PET fiber, 11% by weight of PE fiber, and 9% by weight of PP fiber with the aqueous solution having a mass of 250% of the mass of the non-woven fabric. .
The structure of the wet wiper is shown in [Table 2] below, and the evaluation results are shown in [Table 3] below.

  From the results shown in Table 3, each example of the present invention can shorten the time required for the adsorption dissolution rate to be more effective than the conventional technique, and also has the effect of suppressing foaming, slime feeling, and null feeling. It was confirmed that it was achieved at the same time.

  The wet wiper of the present invention is for the purpose of cleaning, sterilizing, and disinfecting various surfaces, such as hospital door knobs, handrails, beds, operating tables, and monitor touch panels; syringe pumps, infusion pumps, artificial dialysis devices, ME equipment such as ventilators; work supplies such as conveyor belts, work tables, stainless steel containers, refrigerators, and cooking utensils in food factories; housing supplies such as washstands, toilet seats, and furniture; It has industrial applicability.

Claims (11)

A nonwoven fabric containing cellulosic fibers;
An aqueous solution containing a quaternary ammonium salt impregnated in the nonwoven fabric and an anionic surfactant having a structure represented by the following formula (1) or the following formula (2);
A wet wiper containing
R ₁ —COO ⁻ X ₁ ⁺ (1)
(In formula (1), R ₁ represents an alkyl group having 11 to 15 carbon atoms. X ₁ ⁺ represents a monovalent cation.)
R ₂ —O— (CH ₂ CH ₂ O) _n —CH ₂ COO ⁻ X ₂ ⁺ (2)
(In formula (2), R ₂ represents an alkyl group having 12 to 16 carbon atoms. X ₂ ⁺ represents a monovalent cation. N represents a number from 1 to 10.) The anionic surfactant includes an anionic surfactant having a structure represented by the formula (2),
In the formula (2), R ₂ is an alkyl group having 12 carbons.
The wet wiper according to claim 1. The anionic surfactant includes an anionic surfactant having a structure represented by the formula (2),
In said formula (2), n is a number of 4-6,
The wet wiper according to claim 1 or 2. The anionic surfactant includes an anionic surfactant having a structure represented by the formula (2),
In the formula (2), X ₂ ⁺ is a sodium ion.
The wet wiper as described in any one of Claims 1 thru | or 3. The anionic surfactant includes an anionic surfactant having a structure represented by the formula (1),
In the formula (1), R ₁ is an alkyl group having 11 carbon atoms.
The wet wiper as described in any one of Claims 1 thru | or 4. The anionic surfactant includes an anionic surfactant having a structure represented by the formula (1),
In the formula (1), X ₁ ⁺ is a sodium ion.
The wet wiper according to any one of claims 1 to 5. The quaternary ammonium salt is an alkylbenzyldimethylammonium salt;
The wet wiper according to any one of claims 1 to 6.   The wet wiper according to claim 7, wherein the alkyl group of the alkylbenzyldimethylammonium salt is at least one selected from the group consisting of an octyl group, a decyl group, a lauryl group, a myristyl group, and a cetyl group.   The wet wiper according to any one of claims 1 to 8, wherein the cellulosic fiber is a wood pulp fiber.   The wet wiper according to any one of claims 1 to 9, wherein the nonwoven fabric further includes a polyester fiber.   The wet wiper as described in any one of Claims 1 thru | or 10 which is the form wound up by the said nonwoven fabric in roll shape.