JP2023076102A - Virus removal method for fiber product - Google Patents

Abstract

Kind Code: A1 A virus removal method is provided that enables removal of both enveloped and non-enveloped viruses by a normal washing method using a washing machine. [Solution] Component (A): hydrogen peroxide supplying agent; Component (B): bleaching activator represented by a specific formula; Component (C): inorganic alkaline agent; Component (D): protease Formulation, (E) component: anionic surfactant (excluding the above (B) component), (F) component: nonionic surfactant, (A) concentration of 50 to 180 mass ppm, (B ) component concentration is 8 to 50 mass ppm, component (C) concentration is 50 to 250 mass ppm, component (D) concentration is 2.5 to 30 mass ppm, total of component (E) and component (F) A method for removing viruses from textiles, comprising dissolving in water to a concentration of 100 to 500 ppm by mass, contacting the resulting treated liquid with textiles, and removing viruses adhering to textiles. [Selection figure] None

Description

TECHNICAL FIELD The present invention relates to a method for removing viruses from textile products.

In recent years, viral infections have become a problem throughout the year. At home, in addition to washing hands, it is also effective to remove and inactivate viruses adhering to textiles in order to prevent virus infection.
There are two types of viruses to be removed or inactivated: enveloped type such as influenza virus and non-enveloped type such as feline calicivirus, and a virus removal method effective against both types is desired. .

Chlorine-based disinfectants (sodium hypochlorite, etc.), iodine agents (povidone-iodine, etc.), aldehyde agents (glutaral, etc.), peracetic acid preparations, etc. are used to remove or inactivate viruses. However, chlorine-based disinfectants and the like have the effect of bleaching the colors and patterns of fibers, and there is a problem that their use in textile products and clothing is limited.

On the other hand, sodium percarbonate and other hydrogen peroxide supply agents that dissolve in water to generate hydrogen peroxide have a gentle bleaching power and are easy to handle. and is used as an oxygen-based bleaching agent.
Oxygen bleaching agents are known to have the effect of removing or inactivating both enveloped and non-enveloped viruses (Patent Documents 1 and 2).

JP 2015-78479 A JP 2021-127294 A

However, it has been conventionally believed that in order to remove or inactivate viruses with an oxygen-based bleaching agent, it is necessary to bring textile products into contact with a treatment liquid containing a high-concentration hydrogen peroxide supply agent. For example, Patent Document 1 describes preparation of a treatment liquid containing 600 to 2400 ppm by mass of sodium percarbonate. Moreover, Patent Document 2 describes that the concentration of sodium percarbonate in the treatment liquid is set to 0.02% by mass or more (2000 mass ppm or more).

In order to bring the textile product into contact with the treatment liquid containing the hydrogen peroxide supplying agent at such a high concentration, it is necessary to soak the textile product instead of the usual washing method using a washing machine. This is because if the concentration of sodium percarbonate in the washing tub of a washing machine is set to, for example, 2000 ppm by mass, a liquid containing extremely high concentration of sodium percarbonate is generated in the treatment liquid in the washing tub. is.

In recent years, washing machines have been devised so that detergents and bleaching agents that have been put in are quickly mixed with diluent water such as tap water to homogenize them. However, especially immediately after the washing machine starts operating, it is inevitable that the treatment liquid in the washing tub will have a concentration distribution.
Therefore, even oxygen-based bleaching agents with relatively mild bleaching power may cause partial discoloration, etc., when the portion containing extremely high concentrations of sodium percarbonate in the treatment liquid comes into contact with the textiles in the washing tub. may lead to

In view of the above circumstances, it is an object of the present invention to provide a virus removal method that enables the removal of both enveloped and non-enveloped viruses by a normal washing method using a washing machine.

［式（Ｉ）中、Ｒ^１０は炭素数７～１３のアルキル基又はアルケニル基であり、Ｍ^１は水素原子又は塩形成カチオンである。式（II）中、Ｒ^２０は炭素数７～１３のアルキル基又はアルケニル基であり、Ｍ^２は水素原子又は塩形成カチオンである。］
［２］少なくとも、インフルエンザウイルス及びネコカリシウイルスの双方を除去又は不活性化可能である、［１］に記載の繊維製品のウイルス除去方法。
［３］水に溶解または分散させることにより前記処理液が得られる処理剤と水とを洗濯機の洗濯槽に投入し、投入した前記処理剤を前記洗濯槽に導入した水に溶解または分散させることにより前記処理液を得て、前記洗濯槽に収容した前記繊維製品に前記処理液を接触させる、［１］又は［２］に記載の繊維製品のウイルス除去方法。
［４］前記処理剤が、少なくとも前記（Ａ）成分を含有する第一処理剤と、前記（Ａ）成分を含有しない第二処理剤とからなる、［３］に記載の繊維製品のウイルス除去方法。 In order to achieve the above objects, the present invention employs the following configurations.
[1] Component (A): a hydrogen peroxide supplier that dissolves in water to generate hydrogen peroxide;
(B) component: one or more selected from the group consisting of compounds represented by the following formula (I) and compounds represented by the following formula (II);
(C) component: an inorganic alkaline agent;
(D) component: a protease preparation;
(E) component: an anionic surfactant (excluding the (B) component);
(F) component: a nonionic surfactant;
Component (G): A method for removing viruses from textile products, comprising contacting a textile product with a treatment liquid obtained by dissolving an optional component added as necessary in water to remove viruses adhering to the textile product,
The concentration of the (A) component in the treatment liquid is 50 to 180 mass ppm, the concentration of the (B) component is 8 to 50 mass ppm, the concentration of the (C) component is 50 to 250 mass ppm, and the (D). A method for removing viruses from textile products, wherein the concentration of the component is 2.5 to 30 mass ppm, and the total concentration of the component (E) and the component (F) is 100 to 500 mass ppm.

[In formula (I), R ¹⁰ is an alkyl or alkenyl group having 7 to 13 carbon atoms, and M ¹ is a hydrogen atom or a salt-forming cation. In formula (II), R ²⁰ is a C 7-13 alkyl or alkenyl group, and M ² is a hydrogen atom or a salt-forming cation. ]
[2] The method for removing viruses from textile products according to [1], wherein at least both influenza virus and feline calicivirus can be removed or inactivated.
[3] A treatment agent that can be dissolved or dispersed in water to obtain the treatment liquid and water are put into a washing tub of a washing machine, and the put-in treatment agent is dissolved or dispersed in the water introduced into the washing tub. The method for removing viruses from textiles according to [1] or [2], wherein the treatment liquid is obtained by washing and the treatment liquid is brought into contact with the textiles accommodated in the washing tub.
[4] Virus removal from textiles according to [3], wherein the treatment agent consists of a first treatment agent containing at least the component (A) and a second treatment agent that does not contain the component (A). Method.

According to the method for removing viruses of the present invention, both enveloped and non-enveloped viruses can be removed by a normal washing method using a washing machine.

In the virus removal method of the present invention, components (A), (B), (C), (D), (E), (F), and optionally (G), which will be described later, are used. In this method, a treatment liquid dissolved in water is brought into contact with a textile product to remove viruses adhering to the textile product.
As used herein, the term "virus removal" refers to removing or inactivating an infectious virus adhering to an object to lower the infectious titer.

Although the constituent elements described below may be described based on representative embodiments and specific examples, the present invention is not limited to such embodiments.
In this specification, the numerical range represented by "-" means a range including the numerical values described before and after "-" as lower and upper limits.

<(A) Component>
Component (A) is a hydrogen peroxide supplier that dissolves in water to generate hydrogen peroxide. By containing the component (A), the treatment liquid used in the present embodiment can obtain a sufficient virus removal effect.
(A) component may be used individually by 1 type, and may use 2 or more types together.
Component (A) includes, for example, peroxides such as sodium percarbonate, sodium perborate, and sodium perborate trihydrate. As component (A), sodium percarbonate is preferred from the viewpoint of solubility in water.

The concentration of component (A) in the treatment liquid is 50 to 180 mass ppm, preferably 60 to 170 mass ppm, more preferably 70 to 160 mass ppm, and even more preferably 80 to 150 mass ppm. When the concentration of the component (A) is equal to or higher than the above lower limit, the virus removal effect can be further enhanced. (A) When the concentration of the component is equal to or less than the above upper limit, the textile product is less likely to be damaged.
The concentration of component (A) is the quotient obtained by dividing the mass of component (A) before dissolving in water by the total mass of the treatment liquid. However, when the component (A) has water of hydration before being dissolved in water, the mass of the component (A) is the mass excluding the water of hydration.

<(B) Component>
Component (B) is one or more selected from the group consisting of compounds represented by the following formula (I) and compounds represented by the following formula (II). The component (B) functions as a bleaching activator that reacts with hydrogen peroxide in the processing solution and turns into a highly oxidizing organic peracid.
(B) component may be used individually by 1 type, and may use 2 or more types together.

In formula (I), R ¹⁰ is an alkyl or alkenyl group having 7 to 13 carbon atoms, and M ¹ is a hydrogen atom or a salt-forming cation. In formula (II), R ²⁰ is a C 7-13 alkyl or alkenyl group, and M ² is a hydrogen atom or a salt-forming cation.

The alkyl group and alkenyl group for R ¹⁰ and R ²⁰ may each be linear or branched.
Each of R ¹⁰ and R ²⁰ is preferably an alkyl group having 7 to 13 carbon atoms.
Each of R ¹⁰ and R ²⁰ preferably has 7 to 11 carbon atoms, more preferably 9 to 11 carbon atoms.

M ¹ and M ² are cations that electrically neutralize —SO ₃ ^— and —COO ^— in the case of salt-forming cations. Salt-forming cations include, for example, alkali metal ions, ammonium ions, cations of amines (alkanolamines such as monoethanolamine, diethanolamine, triethanolamine, etc.), and the like.

Examples of compounds represented by formula (I) include sodium octanoyloxybenzenesulfonate, sodium nonanoyloxybenzenesulfonate, sodium decanoyloxybenzenesulfonate, sodium undecanoyloxybenzenesulfonate, dodecanoyloxy and sodium benzenesulfonate. Among these, sodium nonanoyloxybenzenesulfonate, sodium decanoyloxybenzenesulfonate, and sodium dodecanoyloxybenzenesulfonate are preferred.

Examples of the compound represented by formula (II) include octanoyloxybenzoic acid, nonanoyloxybenzoic acid, decanoyloxybenzoic acid, undecanoyloxybenzoic acid, dodecanoyloxybenzoic acid and the like. Among these, decanoyloxybenzoic acid is preferred.

As component (B), it is preferable to use a compound represented by formula (I). Among them, the component (B) is selected from the group consisting of sodium 4-dodecanoyloxybenzenesulfonate, sodium 4-nonanoyloxybenzenesulfonate, sodium 4-decanoyloxybenzenesulfonate and 4-decanoyloxybenzoic acid. At least one selected is preferred, and sodium 4-dodecanoyloxybenzenesulfonate is particularly preferred.

The concentration of component (B) in the treatment liquid is 8 to 50 mass ppm, preferably 8.5 to 30 mass ppm, more preferably 9 to 15 mass ppm. When the concentration of the component (B) is equal to or higher than the above lower limit, the virus removal effect can be further enhanced. When the concentration of the component (B) is equal to or less than the above upper limit, the addition of the component (B) more than necessary can be suppressed, which is excellent in terms of cost.
The concentration of component (B) is the quotient obtained by dividing the mass of component (B) before dissolving in water by the total mass of the treatment liquid. However, when ^M1 or ^M2 of the component (B) before dissolving in water is a salt-forming cation, the mass is calculated assuming that ^M1 or ^M2 is a hydrogen atom.

The ratio of the concentration of component (A) to the concentration of component (B) (hereinafter also referred to as "(A)/(B) ratio") is preferably 1/1 to 80/3, and 5/3 to 14/ 1 is more preferred, and 8/3 to 10/1 is even more preferred. When the (A)/(B) ratio is within the above numerical range, the virus removal effect is further improved.

<(C) Component>
(C) Component is an inorganic alkaline agent. An inorganic alkali agent is an inorganic compound that dissolves in water and exhibits alkalinity. By using the component (C), the pH of the treatment liquid can be increased. For this reason, when the textile product is contaminated with acidic vomit, the virus adhering to the textile can be more effectively removed.
(C) component may be used individually by 1 type, and may use 2 or more types together.

As the component (C), known components can be used, and examples thereof include carbonates, bicarbonates (bicarbonates), silicates, and the like.
Examples of the salt of component (C) include alkali metal ions and ammonium ions, with alkali metal ions being preferred.

Specific examples of carbonates include sodium carbonate, potassium carbonate, potassium sodium carbonate, sodium sesquicarbonate and the like.
Specific examples of bicarbonate include sodium bicarbonate and the like.
Specific examples of silicates include sodium silicate, crystalline layered sodium silicate, amorphous sodium silicate, and the like.

Component (C) is preferably one or more selected from the group consisting of sodium carbonate, potassium carbonate, crystalline layered sodium silicate and amorphous sodium silicate, with sodium carbonate being particularly preferred.
Component (C) may be coated with a polymer compound (acrylic acid-maleic anhydride copolymer or its salt, etc.) or fatty acid (lauric acid, etc.).

The concentration of component (C) in the treatment liquid is 50 to 250 mass ppm, preferably 60 to 200 mass ppm, more preferably 70 to 150 mass ppm. When the concentration of the component (C) is equal to or higher than the above lower limit, the virus removal effect can be further enhanced. When the concentration of the component (C) is equal to or less than the above upper limit, it is possible to prevent the pH of the washing liquid from becoming too high.

The concentration of component (C) is the quotient obtained by dividing the mass of component (C) before dissolving in water (including salt-forming cations) by the total mass of the treatment liquid. However, if the component (C) before dissolving in water is coated with a polymer compound (acrylic acid-maleic anhydride copolymer or its salt, etc.) or a fatty acid (lauric acid, etc.), (C) The weight of the components does not include the weight of the polymer compound or fatty acid that constitutes the coating layer.

The ratio of the concentration of component (A) to the concentration of component (C) (hereinafter also referred to as “(A)/(C) ratio”) is preferably 1/4 to 4/1, and 3/7 to 14/ 5 is more preferred, and 2/3 to 2/1 is even more preferred. When the (A)/(C) ratio is within the above numerical range, the virus removal effect is further improved.

<(D) Component>
(D) Component is a protease formulation. (D) The component may contain an enzyme other than the prosthesis. (D) By using the component, the virus removal effect can be further enhanced.
(D) Component may be used individually by 1 type, and may use 2 or more types together.

Proteases include pepsin, trypsin, chymotrypsin, collagenase, keratinase, elastase, sptilisin, papain, bromeline, carboxypeptidase A or B, aminopeptidase, aspargylopeptidase A or B, and the like.
Enzymes other than protease are preferably esterase, lipase, nuclease, cellulase, amylase, pectinase, and the like. (D) When enzymes other than the component are included, amylase is preferable. Detergency is further improved by using component (D) in combination with amylase.

Commercially available protease formulations include Savinase (registered trademark), Alcalase (registered trademark), Kannase (registered trademark), Evalase, Deozyme (registered trademark), Medley (registered trademark) Core200T (mixed enzyme of protease and amylase) ( Above, trade name; manufactured by Novozymes); API21 (trade name; manufactured by Showa Denko Co., Ltd.); Maxacal, Maxapem (trade name; manufactured by Genencore); protease described in JP-A-2003-201032), and the like.

The concentration of component (D) in the treatment liquid is 2.5 to 30 mass ppm, preferably 2.6 to 20 mass ppm, more preferably 2.7 to 15 mass ppm. (D) When the concentration of the component is at least the above lower limit, the virus removal effect can be further enhanced. When the concentration of the component (D) is equal to or less than the above upper limit, the addition of the component (D) more than necessary can be suppressed, which is excellent in terms of cost.
The concentration of component (D) is the quotient obtained by dividing the mass of component (D) before dissolving in water by the total mass of the treatment liquid. The mass of the component (D) is the mass of the formulation, and when the component (D) contains a solvent or an enzyme other than the protease, the mass of the solvent and the enzyme other than the protease is also included.

<(E) component>
The (E) component is an anionic surfactant (excluding the (B) component). Any anionic surfactant may be used as long as it is used in detergents for clothes.

Examples of anionic surfactants include those shown below.
(1) α-sulfo fatty acid methyl ester, ethyl ester or propyl ester (α-SF or MES), or a salt thereof. The type of the α-sulfo fatty acid alkyl ester salt is not particularly limited, and any α-sulfo fatty acid alkyl ester salt used in general laundry detergents can be suitably used. Preferred α-sulfo fatty acid alkyl ester salts are exemplified below.

In formula (III), R ⁰¹ is a linear or branched alkyl or alkenyl group having 8 to 20 carbon atoms. R ⁰² is a linear or branched alkyl group having 1 to 6 carbon atoms. M is a salt-forming cation. ]

In formula (III), R ⁰¹ is a linear or branched alkyl group having 8 to 20 carbon atoms or a linear or branched alkenyl group having 8 to 20 carbon atoms. R ⁰¹ has 8 to 20 carbon atoms, preferably 10 to 18 carbon atoms, more preferably 14 to 16 carbon atoms.
In formula (III), R ⁰² is a linear alkyl group having 1 to 6 carbon atoms or a branched alkyl group having 1 to 6 carbon atoms. R ⁰² has 1 to 6 carbon atoms, preferably 1 to 3 carbon atoms.
Specific examples of R ⁰² include a methyl group, an ethyl group, a propyl group, and an isopropyl group, preferably a methyl group, an ethyl group, and a propyl group, and particularly preferably a methyl group, since the detergency is further improved. .

In formula (III), M is a salt-forming cation and a cation that electrically neutralizes —SO ₃ ^— . Examples of M include alkali metal (sodium, potassium, etc.) ions, ammonium ions, cations of amines (monoethanolamine, diethanolamine, triethanolamine, etc.), and alkali metal ions are preferred.

Examples of anionic surfactants other than the above (1) include the following.
(2) Higher fatty acids having an average carbon number of 10 to 20, or alkali metal salts or alkaline earth metal salts thereof.
(3) A linear or branched alkylbenzenesulfonic acid having an alkyl group of 8 to 18 carbon atoms, or a salt thereof (LAS or ABS).
(4) an alkanesulfonic acid having 10 to 20 carbon atoms or a salt thereof;
(5) α-olefin sulfonic acid having 10 to 20 carbon atoms or a salt thereof (AOS);
(6) Alkyl sulfuric acid having 10 to 20 carbon atoms or a salt thereof, or an alkenyl sulfuric acid or a salt thereof (AS).
(7) either an alkylene oxide having 2 to 4 carbon atoms, or ethylene oxide (EO) and propylene oxide (PO) (molar ratio EO/PO = 0.1/9.9 to 9.9/0.1) , an alkyl (or alkenyl) ether sulfuric acid having an average of 0.5 to 10 moles of added linear or branched C 10 to C 20 alkyl (or alkenyl) groups, or a salt thereof (AES).
(8) an average of 3 to 30 moles of either an alkylene oxide having 2 to 4 carbon atoms, or ethylene oxide and propylene oxide (molar ratio EO/PO = 0.1/9.9 to 9.9/0.1); Alkyl (or alkenyl) phenyl ether sulfuric acid having a linear or branched alkyl (or alkenyl) group having 10 to 20 carbon atoms added thereto, or a salt thereof.
(9) any alkylene oxide having 2 to 4 carbon atoms, or ethylene oxide and propylene oxide (molar ratio EO/PO = 0.1/9.9 to 9.9/0.1), an average of 0.5 to An alkyl (or alkenyl) ether carboxylic acid having a linear or branched alkyl (or alkenyl) group having 10 to 20 carbon atoms added by 10 moles, or a salt thereof.
(10) Alkyl polyhydric alcohol ether sulfuric acid such as alkyl glyceryl ether sulfonate having 10 to 20 carbon atoms, or a salt thereof.
(11) Long-chain monoalkyl, dialkyl or sesquialkyl phosphates, or salts thereof.
(12) Polyoxyethylene monoalkyl, dialkyl or sesquialkyl phosphates, or salts thereof.
(13) Internal olefin sulfonic acids or salts thereof (IOS).
(14) Hydroxyalkanesulfonic acid or its salt (HAS).

Among the above examples, α-sulfo fatty acid alkyl ester salt (MES), alkali metal salt (e.g., sodium salt or potassium salt) of linear alkylbenzene sulfonic acid (LAS), alkali metal salt (e.g., sodium salt) of AOS, AES or potassium salt), alkali metal salts of higher fatty acids (for example, sodium salt or potassium salt) are preferred. Among these, MES having an alkyl group of 14 to 16 carbon atoms, LAS salts having an alkyl group of 10 to 14 carbon atoms, and higher fatty acid salts of 10 to 20 carbon atoms are particularly preferred.
These anionic surfactants may be used alone or in combination of two or more.

The concentration of component (E) in the treatment liquid is preferably 50 to 250 ppm by mass, more preferably 60 to 200 ppm by mass, even more preferably 70 to 150 ppm by mass. (E) When the concentration of the component is at least the above lower limit, the effect of virus removal can be further enhanced. (E) When the concentration of the component is equal to or less than the above upper limit, foaming during washing can be suppressed.
The concentration of component (E) is the quotient obtained by dividing the mass of component (E) as a pure component by the total mass of the treatment liquid. When the component (E) is a salt, the mass of the component (E) is the mass in terms of the acid form.

<(F) Component>
(F) Component is a nonionic surfactant.
Examples of nonionic surfactants include those shown below.
(1) A polyoxyethylene (or alkenyl) alkyl ether represented by the following formula (IV).
R ¹ -X-[(EO) _s /(PO) _t ]-(EO) _u -R ² (IV)

In formula (IV), R ¹ is a hydrocarbon group having 6 to 22 carbon atoms, -X- is -O-, EO is an oxyethylene group, PO is an oxypropylene group, R ² is a hydrogen atom, It represents an alkyl group having 1 to 6 carbon atoms or an alkenyl group having 2 to 6 carbon atoms. s is a number from 3 to 30 indicating the average repetition number of EO, t is a number from 0 to 6 indicating the average repetition number of PO, u is a number from 0 to 20 indicating the average repetition number of EO, s+u is a number from 3 to 30;
The distribution (arrangement order) in the case of having EO and PO is not particularly limited, and may be arranged in blocks or randomly.

Among these, polyoxyethylene alkyl (or alkenyl) ethers and polyoxyethylene polyoxypropylene alkyl (or alkenyl) ethers are suitable. The aliphatic alcohols used here include primary alcohols and secondary alcohols. Moreover, the alkyl group may have a branched chain. Preferred fatty alcohols are primary alcohols. s+u is preferably a number of 5 to 15, more preferably a number of 6 to 12, and even more preferably a number of 6 to 10.

In addition to the above (1), nonionic surfactants include the following.
(2) Polyoxyethylene alkyl (or alkenyl) phenyl ethers.
(3) A fatty acid alkyl ester alkoxylate represented by the following formula (V), in which an alkylene oxide is added between ester bonds of a long-chain fatty acid alkyl ester.
R ⁰³ CO (OR ⁰⁵ ) _n OR ⁰⁴ (V)

In formula (V), R ⁰³ CO represents a fatty acid residue having 5 to 21 carbon atoms, preferably 7 to 17 carbon atoms. OR ⁰⁵ represents an oxyalkylene group having 2 to 4 carbon atoms, preferably 2 or 3 carbon atoms such as oxyethylene group and oxypropylene group. n represents the average number of repeating oxyalkylene groups, and is a number of 3-30, preferably 5-20. R ⁰⁴ represents an optionally substituted alkyl group having 1 to 3 carbon atoms.

Moreover, what is shown below is mentioned as a nonionic surfactant.
(4) Polyoxyethylene sorbitan fatty acid ester.
(5) Polyoxyethylene sorbite fatty acid ester.
(6) Polyoxyethylene fatty acid esters.
(7) Polyoxyethylene hydrogenated castor oil.
(8) Glycerin fatty acid ester.

Among the above examples, the nonionic surfactant (1) is preferred. Among them, a polyoxyalkylene alkyl (or alkenyl) ether obtained by adding an average of 5 to 20 moles of an alkylene oxide having 2 to 4 carbon atoms to an aliphatic alcohol having 12 to 16 carbon atoms is preferable. Polyoxyethylene alkyl (or alkenyl) ethers, polyoxyethylene polyoxypropylene alkyl (or alkenyl) ethers having a melting point of 50°C or less and an HLB of 9 to 16, fatty acid methyl ester ethoxylates obtained by adding ethylene oxide to a fatty acid methyl ester, Fatty acid methyl ester ethoxypropoxylate, which is a fatty acid methyl ester to which ethylene oxide and propylene oxide are added, is particularly preferred.
These nonionic surfactants may be used alone or in combination of two or more.

The HLB of the nonionic surfactant is the value determined by Griffin's method (Yoshida, Shindo, Ogaki, Yamanaka co-edited, "Surfactant Handbook New Edition", Kogyo Tosho Co., Ltd., 1991, No. 234 page). The melting point is the value measured by the melting point measurement method described in JIS K0064-1992 "Method for measuring melting point and melting range of chemical products".

The concentration of component (F) in the treatment liquid is preferably 50 to 250 ppm by mass, more preferably 60 to 200 ppm by mass, even more preferably 70 to 150 ppm by mass. When the concentration of the component (F) is equal to or higher than the above lower limit, the virus removal effect can be further enhanced. (F) When the concentration of the component is equal to or less than the above upper limit, foaming during washing can be suppressed.
The concentration of the component (F) is the quotient obtained by dividing the mass of the component (F) as a pure component by the total mass of the treatment liquid.

The total concentration of components (E) and (F) in the treatment liquid is 100 to 500 mass ppm, preferably 120 to 400 mass ppm, more preferably 140 to 300 mass ppm. When the total concentration of the component (E) and the component (F) is at least the above lower limit, the virus removal effect can be further enhanced. When the total concentration of the component (E) and the component (F) is equal to or less than the above upper limit, foaming during washing can be suppressed.

The treatment liquid may contain only one of the (E) component and the (F) component.
The ratio of the concentration of component (F) to the concentration of component (E) (hereinafter also referred to as “(E)/(F) ratio”) is preferably 1/20 to 20/1, and 1/5 to 10/ 1 is more preferred, and 1/2 to 3/1 is even more preferred. When the (E)/(F) ratio is within the above numerical range, it is easy to achieve both the virus removal effect and the detergency.

<(G) Component>
Component (G) is an optional component that is added as necessary. In addition to the components (A), (B), (C), (D), (E) and (F), the treatment liquid may optionally contain another component (G). A component (optional component) may be contained.
Component (G) includes components that can be used in conventionally known laundry detergents, such as antibacterial agents, detergency builders, fluorescent whitening agents, enzyme stabilizers, polymers, anti-caking agents, antifoaming agents, and reducing agents. , metal ion scavengers, fragrances, pigments, pH adjusters and the like.

[Antibacterial agent]
Antibacterial agents include, for example, 4,4′-dichloro-2-hydroxydiphenyl ether (common name: diclosan), 5-chloro-2-(2,4-dichlorophenoxy)phenol (common name: triclosan), bis- (2-pyridylthio-1-oxide)zinc, polyhexamethylene biguanide hydrochloride, 8-oxyquinoline, polylysine.
The concentration of the antibacterial agent in the treatment liquid is preferably more than 0 mass ppm and 1.0 mass ppm, more preferably 0.05 to 0.9 mass ppm, further preferably 0.1 to 0.8 mass ppm, 0.15 ~0.7 ppm mass is particularly preferred.

[Detergency builder]
Detergency builders include inorganic builders (excluding component (C)) and organic builders.
Examples of inorganic builders include alkali metal sulfates such as sodium sulfate and potassium sulfate; alkali metal chlorides such as sodium chloride and potassium chloride; crystalline aluminosilicates and amorphous aluminosilicates.
Preferred among these are [1] moisture content at 20° C. of 10 to 30% by mass, [2] SiO ₂ /Al ₂ O ₃ =1 to 2, and [3] primary particle size of 3.0%. A synthetic aluminosilicate having a particle size of 0 μm or less, and a synthetic zeolite having an average primary particle size of 0.5 to 3 μm is particularly preferable in terms of performance and manufacturability.
The zeolite may be used as powder, zeolite slurry, or zeolite agglomerated dry particles obtained by drying the slurry. Specific examples include "Silton B" (manufactured by Mizusawa Chemical Industry Co., Ltd.), "Toyobuilder" (manufactured by Tosoh Corporation), and the like. Further, the oil absorption capacity of the synthetic aluminosilicate according to the JIS K 5101 method is preferably 40 to 50 mL/100 g.

Examples of organic builders include aminocarboxylates such as nitrilotriacetate, ethylenediaminetetraacetate, β-alanine diacetate, aspartic acid diacetate, methylglycine diacetate, and iminodisuccinate; serine diacetate, hydroxyimino Hydroxyaminocarboxylates such as disuccinate, hydroxyethylethylenediamine triacetate, dihydroxyethylglycinate; hydroxycarboxylates such as hydroxyacetate, tartrate, citrate, gluconate; pyromellitic acid salt, Cyclocarboxylic acid salts such as benzopolycarboxylic acid salts and cyclopentanetetracarboxylic acid salts; Salts, salts of acrylic acid-allyl alcohol copolymers, salts of acrylic acid-maleic acid copolymers, salts of polyacetal carboxylic acids such as polyglyoxylic acid; hydroxyacrylic acid polymers, polysaccharides-acrylic acid copolymers, etc. salts of acrylic acid polymers or copolymers; salts of polymers or copolymers such as maleic acid, itaconic acid, fumaric acid, tetramethylene 1,2-dicarboxylic acid, succinic acid, aspartic acid; starch, cellulose, Examples include polysaccharide derivatives such as polysaccharide oxides such as amylose and pectin.
Among the above organic builders, citrates, aminocarboxylates, hydroxyaminocarboxylates, polyacrylates, acrylic acid-maleic acid copolymer salts, and polyacetalcarboxylic acid salts are preferred. In particular, hydroxyimino disuccinates, salts of acrylic acid-maleic acid copolymers with a weight average molecular weight of 1,000 to 80,000, polyacrylates, polyglyoxyls with a weight average molecular weight of 800 to 1,000,000 (preferably 5,000 to 200,000) Polyacetal carboxylates such as acids (for example, those described in JP-A-54-52196) are suitable.
Detergency builders may be used alone or in combination of two or more.
For the purpose of improving detergency and stain dispersibility in washing liquid, it is preferable to use an organic builder such as polyacrylate and acrylic acid-maleic acid copolymer salt together with an inorganic builder such as zeolite. .

[Fluorescent brightener]
Examples of fluorescent brighteners include 4,4'-bis-(2-sulfostyryl)-biphenyl salt, 4,4'-bis-(4-chloro-3-sulfostyryl)-biphenyl salt, 2-( styrylphenyl)naphthothiazole derivatives, 4,4'-bis(triazol-2-yl)stilbene derivatives, bis-(triazinylaminostilbene)disulfonic acid derivatives and the like.
Commercially available fluorescent brighteners include, for example, Whitex SA, Whitex SKC (trade names; manufactured by Sumitomo Chemical Co., Ltd.), Tinopal AMS-GX, Tinopal DBS-X, Tinopal CBS-X (trade names ; manufactured by Ciba Specialty Chemicals), Lemonite CBUS-3B (trade name; manufactured by Khyati Chemicals), and the like. Among these, Tinopal CBS-X and Tinopal AMS-GX are preferred. Fluorescent whitening agents may be used alone or in combination of two or more.

[Enzyme stabilizer]
Enzyme stabilizers include, for example, calcium salts, magnesium salts, polyols, formic acid, boron compounds and the like. Among them, sodium tetraborate, calcium chloride and the like are preferable.
Enzyme stabilizers may be used singly or in combination of two or more.

[Polymers]
Examples of polymers include polyethylene glycol having an average molecular weight of 200 to 200,000, polymers or copolymers of acrylic acid and maleic acid (weight average molecular weight of 1,000 to 100,000), polyvinyl alcohol, and cellulose derivatives such as carboxymethyl cellulose. These polymers can be blended into the treatment liquid as a binder or a powder physical property agent when the surfactant-containing particles are densified, and as a component that imparts an anti-soil redeposition effect to the hydrophobic fine particles.
Further, as a soil release agent, a copolymer or terpolymer of terephthalic acid and one or more selected from ethylene glycol and propylene glycol units can be blended.
In addition, polyvinylpyrrolidone or the like can be blended in order to impart an effect of preventing color transfer.
Among the above, polyethylene glycol having an average molecular weight of 1,500 to 7,000 is preferred.
These polymers may be used individually by 1 type, and may use 2 or more types together.

[Anti-caking agent]
Anti-caking agents include, for example, p-toluenesulfonate, xylenesulfonate, acetate, sulfosuccinate, talc, fine powder silica, clay, magnesium oxide and the like.
An anti-caking agent may be used individually by 1 type, and may use 2 or more types together.

[Antifoaming agent]
Conventionally known antifoaming agents include, for example, silicone-based and silica-based antifoaming agents.
The antifoaming agent may be a granulated antifoaming agent produced by the method described in the lower left column on page 4 of JP-A-3-186307. Specifically, first, to 100 g of maltodextrin (enzyme-modified dextrin) manufactured by Nichiden Kagaku Co., Ltd., 20 g of silicone (compound type, PS antifoam) manufactured by Dow Corning Co., Ltd. was added as an antifoaming component and mixed to obtain a homogeneous mixture. get a mixture. Next, 50% by mass of the homogeneous mixture obtained, 25% by mass of polyethylene glycol (PEG-6000, melting point 58°C), and 25% by mass of neutral anhydrous sodium sulfate were mixed at 70 to 80°C, followed by to obtain a granulated product.
An antifoaming agent may be used individually by 1 type, and may use 2 or more types together.

[Reducing agent]
Examples of reducing agents include sodium sulfite and potassium sulfite.

[Metal ion scavenger]
The metal ion scavenger has the effect of capturing trace metal ions and the like in tap water and suppressing adsorption of metal ions to textile products.
Examples of metal ion scavengers include aminopolyacetic acids such as ethylenediaminetetraacetic acid, nitrilotriacetic acid, glycolethylenediaminehexaacetic acid; 1-hydroxyethane-1,1-diphosphonic acid (HEDP) and ethane-1,1-diphosphonic acid. , ethane-1,1,2-triphosphonic acid, hydroxyethane-1,1,2-triphosphonic acid, ethane-1,2-dicarboxy-1,2-diphosphonic acid, hydroxymethanephosphonic acid, ethylenediaminetetra(methylenephosphonic acid), nitrilotri (methylene phosphonic acid), 2-hydroxyethyliminodi (methylene phosphonic acid), hexamethylene diamine tetra (methylene phosphonic acid), diethylene triamine penta (methylene phosphonic acid) and other organic phosphonic acid derivatives or salts thereof; Examples include organic acids such as glycolic acid, tartaric acid, oxalic acid, gluconic acid, and salts thereof.
The metal ion scavengers may be used singly or in combination of two or more.

[Perfume]
A perfume is a mixture (perfume composition) containing a perfume component, a solvent, a perfume stabilizer, and the like.
Examples of perfumes are described in "Fragrance Chemistry (Edited by The Chemical Society of Japan, written by Ryoichi Akahoshi, published on September 16, 1983)", "Synthetic Perfume Chemistry and Product Knowledge, Kagaku Kogyo Nippousha, 1996", etc. There are some Specific examples of the perfume include those described in JP-A-2002-146399, those described in JP-A-2003-89800, perfumes A to C described in Table 5 in JP-A-2007-321270, and Perfume compositions A, B, etc. described in Table 13 in JP-A-2009-155739 can be used. Moreover, you may mix|blend a capsule fragrance|flavor.

[Dye]
Both dyes and pigments can be used as pigments. From the viewpoint of storage stability, pigments are preferred, and compounds having oxidation resistance, such as oxides, are particularly preferred. Such compounds include titanium oxide, iron oxide, copper phthalocyanine, cobalt phthalocyanine, ultramarine blue, Prussian blue, cyanine blue, cyanine green, and the like.
One of the dyes may be used alone, or two or more of them may be used in combination.

[pH adjuster]
The pH of the treatment liquid can be adjusted with an inorganic alkaline agent (component (C)). However, in the powder bleach composition of the present embodiment, in addition to the component (C), alkanolamines such as monoethanolamine, diethanolamine and triethanolamine; sodium hydroxide, potassium hydroxide and the like may be used as pH adjusters. can.
An acid may also be used to prevent the pH of the treatment liquid from becoming too high. Examples of such acids include the metal ion scavengers, alkali metal dihydrogen phosphates such as potassium dihydrogen phosphate, lactic acid, succinic acid, malic acid, gluconic acid, or polycarboxylic acids thereof; sodium hydrogen carbonate, sulfuric acid, hydrochloric acid and the like.
One of the pH adjusters may be used alone, or two or more of them may be used in combination.

<pH>
The pH (25° C.) of the treatment liquid is preferably 7-12, more preferably 8-11.
When the pH of the treatment liquid is equal to or higher than the above lower limit, the virus removal effect can be further enhanced.
When the pH of the treatment liquid is equal to or lower than the above upper limit, the textile products are less likely to be damaged.
In this specification, the pH (25° C.) of the treatment liquid indicates a value measured by a method conforming to JIS Z 8802:1984 "pH measurement method".

<Method for preparing treatment liquid>
Although the method for preparing the treatment liquid is not particularly limited, the following methods may be mentioned, for example.
(1) A method of dissolving or dispersing a treatment agent containing all components in water. The treating agent in this case is preferably in a solid form because it tends to stably retain the component (A). The solid processing agent can be in an appropriate form such as powder, tablet, sheet and the like.

(2) A method of dissolving or dispersing in water a first treating agent containing at least component (A) and a second treating agent not containing component (A).
In addition to the component (A), the first processing agent may contain part or all of other components. Above all, it is preferable that the components (B) and (C) are integrally contained in the first treatment agent as components for exhibiting the effect of the component (A).

In addition to the (A) component, the first processing agent may contain part or all of the (D) component in addition to the (B) component and the (C) component. Moreover, you may contain a part or all of (E) component and (F) component.
When the first processing agent contains the component (C), it is preferable that the first processing agent is in a solid form because it tends to stably hold the component (A). The solid processing agent can be in an appropriate form such as powder, tablet, sheet and the like.

When the first treatment agent is liquid, it is preferred that the first treatment agent does not contain component (C) and is weakly acidic or acidic. The component (A) can be stably maintained by making it weakly acidic or acidic. When the first treatment agent is liquid, the pH is preferably 2 or more and less than 6, more preferably 3-5.

The second treatment agent does not contain component (A). The second processing agent contains a component that, when combined with the first processing agent, yields the processing liquid used in the present invention.
The second treatment agent preferably contains part or all of the (E) component and the (F) component.
The second treatment agent may be liquid or solid.

Although there is no particular limitation on the specific combination of the first treatment agent and the second treatment agent, examples thereof include the following.
(a) The first processing agent contains components (A), (B), (C) and (D), and the second processing agent contains components (E) and (F).
(b) the first processing agent contains (A) component, (B) component, (C) component, (D) component, and part of (F) component, and the second processing agent contains (E) component and ( F) Contains a portion of the ingredients.
(c) The first processing agent contains components (A), (B) and (C), and the second processing agent contains components (D), (E) and (F).

<Method of contacting the treatment liquid with the textile product>
The method of bringing the treatment liquid into contact with the textile product can be appropriately selected depending on the use scene and the like, and examples thereof include washing with a washing machine using the treatment liquid, hand washing, and soaking and washing. In particular, in the case of washing with a washing machine, a plurality of clothes can be processed collectively.

In the case of washing with a washing machine, a processing agent and water are put into the washing tub of the washing machine, and the processing agent is dissolved or dispersed in the water introduced into the washing tub to obtain a processing liquid, which is stored in the washing tub. The treated textiles are brought into contact with the treatment liquid. At this time, by using the stirring function of the washing machine, the uniformity of the treatment liquid is promoted, and the treatment liquid can be quickly permeated into textile products such as clothes.

In the case of washing by hand washing or soaking, the treating agent and water are put into a washing tub, and the textile products are immersed in the homogenized treating solution by sufficiently stirring. After the immersion, it is preferable to carry out pressing washing, rubbing washing, or the like to sufficiently permeate the treatment liquid into textile products such as clothes. In the case of soaking and washing, leave for a predetermined time after immersion.

The time period during which the textile product is kept in contact with the treatment liquid is preferably from 1 minute to 12 hours, more preferably from 1 minute to 2 hours, and even more preferably from 1 minute to 30 minutes. The temperature of the treatment liquid when brought into contact with the textile product is preferably 10 to 50°C, more preferably 20 to 40°C.
After contacting the textile with the treatment liquid, it is preferable to rinse the textile. Moreover, in order to perform rinsing efficiently, dehydration is preferably performed prior to rinsing. After rinsing, dehydration and drying can be performed in the same manner as normal washing.

<Virus to be removed>
According to the virus removal method of the present embodiment, both enveloped and non-enveloped viruses are removed or inactivated despite the low concentration of component (A).
Examples of enveloped viruses include influenza virus, novel coronavirus (COVID-19), and rubella virus.
Non-enveloped viruses include norovirus, feline calicivirus, poliovirus, and the like.
At least, if it is confirmed that both influenza virus and feline calicivirus are removed or inactivated, it can be said that both enveloped and non-enveloped viruses can be removed or inactivated.

[EXAMPLES] Hereafter, although an Example is shown and this invention is demonstrated in detail, this invention is not limited by the following description.
Raw materials used in this example are as shown in the following <raw materials used>.

<Raw materials used>
[(A) Component]
a-1: Sodium percarbonate (trade name “Sodium percarbonate”, manufactured by JINKE Corporation).

[(B) component]
b-1: Sodium 4-dodecanoyloxybenzenesulfonate (OBS12, a compound in which R ¹⁰ is an alkyl group having 11 carbon atoms and M ¹ is sodium in the above formula (I), a granule obtained by the following synthesis method ).

(Method for synthesizing b-1 (OBS12) granules)
3000 g (15.3 mol) of pre-dehydrated sodium 4-hydroxybenzenesulfonate (manufactured by Kanto Chemical Co., Ltd., reagent) was dispersed in 9000 g of N,N-dimethylformamide (manufactured by Kanto Chemical Co., Ltd., reagent) and stirred with a stirrer. With stirring, 3347 g (15.3 mol) of lauric acid chloride (reagent manufactured by Tokyo Chemical Industry Co., Ltd.) was added dropwise at 50° C. over 30 minutes. After 3 hours from the completion of dropping, N,N-dimethylformamide was distilled off at 100° C. under reduced pressure (0.5-1 mmHg (66.7-133.3 Pa)). After washing with acetone (manufactured by Kanto Kagaku Co., Ltd., reagent), purification was performed by recrystallization in water/acetone (= 1/1 mol) solvent to obtain crystals of sodium 4-dodecanoyloxybenzenesulfonate. . Yield was 90%.

70 parts by mass of the obtained sodium 4-dodecanoyloxybenzenesulfonate, 20 parts by mass of PEG (polyethylene glycol #6000M (trade name), manufactured by Lion Corporation), sodium α-olefin sulfonate having 14 carbon atoms (Liporan PJ-400 (trade name), manufactured by Lion Corporation) at a rate of 5 parts by mass, a total of 5000 g, is put into Extrude Ohmix EM-6 type (trade name, manufactured by Hosokawa Micron Corporation), kneaded and extruded to obtain a diameter A noodle-like extrudate with a diameter of 0.8 mm was obtained. This extruded product (60 ° C.) and 5 parts by mass of A-type zeolite powder are supplied to a Fitzmill DKA-3 type (trade name, manufactured by Hosokawa Micron Corporation) and pulverized to activate bleaching with an average particle size of 700 μm. Granules of agent OBS12 were obtained.

[(C) component]
c-1: Sodium carbonate (trade name “Soda Ash Dense”, manufactured by Tokuyama Corporation).

[(D) component etc.]
d-1: Protease (Savinase12T, manufactured by Novozymes).
d-2: Protease/amylase complex enzyme (MedleyCore200T, manufactured by Novozymes).
dx-1: Amylase (Stainzyme PlusEvity 12T, manufactured by Novozymes).

[(E) component]
e-1: Sodium α-olefin sulfonate (trade name “Liporan LB-840”, manufactured by Lion Corporation).

[(F) Component]
f-1: polyoxyethylene (EO9) alkyl ether (in the above formula (IV), R ¹ is an alkyl group having 12 carbon atoms (C12) and an alkyl group having 14 carbon atoms (C14) (mass ratio: C12:C14= 70:30), a compound in which R ² is a hydrogen atom, —X— is —O—, the carbon atom of R ¹ to which X is bonded is a primary carbon atom, s is 9, t is 0, and u is 0. Trade name “Brownon EL-1509”, manufactured by Aoki Oil Industry Co., Ltd.).

[(G) Component]
g-1: perfume, perfume composition A described in Tables 11 to 18 of JP-A-2002-146399.
g-2: Antibacterial agent, diclosan (4,4'-dichloro-2-hydroxydiphenyl ether) (manufactured by BASF, trade name "TINOSANHP100").
g-3: Antibacterial agent, polyhexamethylene biguanide hydrochloride (trade name “ProxelIB”, manufactured by Lonza Japan Co., Ltd.).

<Examples 1 to 9, Comparative Examples 1 to 7>
By dissolving or dispersing each component in water so as to have the composition shown in Tables 1 and 2 (unit: mass ppm), the treatment liquid of each example was prepared. In each table, blank components were not blended (concentration: 0 mass ppm).

Specifically, as the first treatment agent, a powder bleaching agent containing a part of components (A), (B), (C), (D), and (F) is dissolved in water. This was used as the first liquid. Moreover, the liquid detergent composition containing the remainder of the component (E) and the component (F) as the second treatment agent was used as the second liquid.
The first liquid and the second liquid were combined and further diluted with water to obtain the treatment liquid of each example.

The pH values shown in the tables were measured at 25° C. using a glass electrode pH meter (HM-30G, manufactured by Toa DKK Co., Ltd.). The measurement method was performed in accordance with JIS Z 8802:1984 "pH measurement method".
The virus removal effect of the treatment solution obtained in each example was evaluated by the following antiviral test. Tables 1 and 2 show the results.

<Evaluation method>
An antiviral test was conducted according to the method described in JIS L1922:2016 "Antiviral test method for textile products".
The following two types of viruses were used.
• Influenza virus: Influenza A virus (A/PR/8/34 (H1N1)), ATCC strain VR-1469.
• Feline calicivirus: Feline calisivirus strain F9, ATCC strain VR-782.

Three 2.5 cm×3.75 cm square cotton cloths were inoculated with 0.02 mL of each test virus solution (>10 ⁸ PFU/mL) of influenza virus and feline calicivirus.
A cotton cloth inoculated with the test virus solution was placed in a beaker containing 100 mL of the treatment solution of each example, and stirred at 60 rpm and 25° C. for 10 minutes. After stirring, the cotton cloth was taken out, and 30 mL of SCDLP medium placed in a 50 mL centrifuge tube was stirred well to extract the virus remaining on the cotton cloth. According to JIS L1922:2016 Annex C, the virus infectivity titer was measured by the TCID50 measurement method. The virus infectivity of a blank (cotton cloth treated with a 0.05 (w/v) % polysorbate 80 aqueous solution) and the virus infectivity of each treated solution were determined. The difference between the blank virus infectivity titer and the virus infectivity titer when each treatment solution was used was calculated as the reduced value of the virus infectivity titer.

The virus removal effect was evaluated based on the following evaluation criteria from the reduction value of the virus infectivity titer. Tables 1 and 2 show the results. A reduction value of 2.0 (evaluation “◯”) or more in the virus infection titer was judged to be acceptable.

"Evaluation criteria"
⊚: Decreased value of virus infection titer is 2.5 or more.
◯: Decreased value of virus infectivity titer is 2.0 or more and less than 2.5.
Δ: Decreased value of virus infectivity titer is 1.0 or more and less than 2.0.
x: Decreased value of virus infectivity titer is less than 1.0.

As shown in Table 1, in the treatment liquids of Examples, although the concentration of component (A) is as low as about 100 ppm by mass, both influenza virus and feline calicivirus are sufficiently removed. showed an effect.
On the other hand, as shown in Table 2, the virus-removing effect of the treatment liquid of the comparative example was low, and the effect of removing feline calicivirus was particularly poor.

Claims (4)

(A) component: a hydrogen peroxide supplier that dissolves in water to generate hydrogen peroxide;
(B) component: one or more selected from the group consisting of compounds represented by the following formula (I) and compounds represented by the following formula (II);
(C) component: an inorganic alkaline agent;
(D) component: a protease preparation;
(E) component: an anionic surfactant (excluding the (B) component);
(F) component: a nonionic surfactant;
Component (G): A method for removing viruses from textile products, comprising contacting a textile product with a treatment liquid obtained by dissolving an optional component added as necessary in water to remove viruses adhering to the textile product,
The concentration of the (A) component in the treatment liquid is 50 to 180 mass ppm, the concentration of the (B) component is 8 to 50 mass ppm, the concentration of the (C) component is 50 to 250 mass ppm, and the (D). A method for removing viruses from textile products, wherein the concentration of the component is 2.5 to 30 mass ppm, and the total concentration of the component (E) and the component (F) is 100 to 500 mass ppm.

[In formula (I), R ¹⁰ is an alkyl or alkenyl group having 7 to 13 carbon atoms, and M ¹ is a hydrogen atom or a salt-forming cation. In formula (II), R ²⁰ is a C 7-13 alkyl or alkenyl group, and M ² is a hydrogen atom or a salt-forming cation. ] 2. The method for removing viruses from textile products according to claim 1, wherein at least both influenza virus and feline calicivirus can be removed or inactivated. A treatment agent that can be dissolved or dispersed in water to obtain the treatment liquid and water are put into a washing tub of a washing machine, and the put-in treatment agent is dissolved or dispersed in the water introduced into the washing tub. 3. The method for removing viruses from textiles according to claim 1, wherein a treatment liquid is obtained and brought into contact with the textiles accommodated in the washing tub. 4. The method for removing viruses from textile products according to claim 3, wherein the treating agent comprises a first treating agent containing at least the component (A) and a second treating agent not containing the component (A).