Detergent mixtures for textile products.

Abstract

DEPCT63 This invention is a detergent mixture for textile products, containing the following components (A): In amounts of 10% by mass or more and 40% by mass or less, the following component (B) in A quantity of 0.5% by mass or more and 5% by mass or less, the following components (C), and The following components (D), in which the ratio by mass (a2) / [(a1)+(a2)] is 0 or greater and 0.15. Or less, the ratio by mass (a3) / [(a1)+(a3)] is 0 or greater and 0.15 or less, and The ratio by mass (b2) / (b1) is 0 or greater and 1.5 or less: Component (A): anionic surfactant containing a sulfonate group or its salt (a1), and reducing agent. Non-ionic surface tension selectors with polyoxyalkylene group (a2) and alkyl sulfate selectors (a3); Component (B): Two specific cationic surfactants (b1) and (b2) containing a number Carbon is different; Component (C): One or more alkaline agents selected from inorganic carbonate and Inorganic bicarbonate, and Composition (D): A polymer containing a carboxylic acid group or its salt and having a molecular weight. Average weight 3000 grams or more. -----------------------------------------------------------

Description

Powder detergent composition for textile products

[0001] The present invention relates to a powder detergent composition for textile products and a method for washing textile products.

[0002] Background Art In powder detergent compositions for textile products such as clothing, anionic surfactants and nonionic surfactants are used as cleaning components. As anionic surfactants, anionic surfactants having a sulfonic acid group or its salt, represented by alkylbenzene sulfonates, and anionic surfactants having a sulfate ester salt, represented by alkyl sulfate esters and polyoxyalkylene alkyl sulfate esters, are known. Providers of laundry detergents use a plurality of anionic surfactants in combination from the viewpoint of detergency against various soils adhering to clothing. On the other hand, with the increasing awareness of hygiene among consumers, there has been a growing interest in the odor and bacteria of clothing. It is known that various bacteria existing in the skin commensal bacteria and the environment adhere to and propagate on clothing. As a means for suppressing the growth of bacteria adhering to clothing, it is known to use a quaternary ammonium surfactant.

[0003] JP-A-2014-141641 discloses a powder detergent composition for clothing containing an alkylbenzene sulfonate and an alkyl sulfate and having excellent detergency for sebum stains and mud stains. JP-A-2004-10681 discloses a granular detergent composition containing a specific amine compound, a sulfonate, a specific nonionic surfactant and a water-soluble inorganic salt, and a cationic surfactant and a polymer as a surface coating agent as optional components, and having excellent detergency, color fastness to storage, and prevention of discoloration and fading of the object to be washed. JP-A-62-230900 describes a granular detergent composition containing a surfactant, a soluble detergency builder, a fatty acid soap, a quaternary ammonium salt and a silicone liquid antifoaming agent and having excellent rinsability.

[0004] Summary of the Invention The present invention provides a powder detergent composition for textile products having a high bactericidal effect on bacteria present in the washing liquid, maintaining foaming properties, and having excellent rinsability.

[0005] The present invention relates to a powder detergent composition for textile products, containing 10% by mass or more and 40% by mass or less of the following component (A), 0.5% by mass or more and 5% by mass or less of the following component (B), and the following components (C) and (D), wherein the mass ratio of the content of component (a2) to the total content of components (a1) and (a2) is 0 or more and 0.15 or less, i.e., (a2) / [(a1) + (a2)]; the mass ratio of the content of component (a3) to the total content of components (a1) and (a3) is 0 or more and 0.15 or less, i.e., (a3) / [(a1) + (a3)]; and the mass ratio of the content of component (b2) to the content of component (b1) is 0 or more and 1.5 or less, i.e., (b2) / (b1). Component (A): the following component (a1), and optional components (a2) and (a3) Component (a1): an anionic surfactant having a sulfonic acid group or its salt Component (a2): a nonionic surfactant having a polyoxyalkylene group Component (a3): an alkyl sulfate salt Component (B): the following component (b1), and optional component (b2) Component (b1): a cationic surfactant in which the total number of carbon atoms of R １ and R ２ is 15 or more and 23 or less in the following general formula (1) Component (b2): a cationic surfactant in which the number of carbon atoms of R １ is 8 or more and 13 or less, R ２ is a hydrocarbon group having 1 or more and 3 or less carbon atoms, and the total number of carbon atoms of R １ and R ２ is 9 or more and 14 or less in the following general formula (1)

[0006]

[0007] [In the formula, R １ is an aliphatic hydrocarbon group having 8 or more and 16 or less carbon atoms, R ２ is a hydrocarbon group having 1 or more and 10 or less carbon atoms, R ３ and R ４ are each independently a group selected from a hydrocarbon group having 1 or more and 3 or less carbon atoms and a hydroxyalkyl group having 1 or more and 3 or less carbon atoms, and X －It is an anion. (C) Component: One or more alkaline agents selected from inorganic carbonates and inorganic bicarbonates (D) Component: A polymer having a carboxylic acid group or a salt thereof and having a weight-average molecular weight of 3000 or more

[0008] Furthermore, the present invention relates to a method for cleaning textile products, wherein the textile products are cleaned with a cleaning solution obtained by mixing the above-described powder cleaning agent composition for textile products of the present invention with water having a German hardness of 1°dH or more and 50°dH or less.

[0009] According to the present invention, a powder detergent composition for textile products can be obtained that has a high bactericidal effect on bacteria present in the detergent solution, maintains foaming ability, and has excellent rinsing properties. In the present invention, the terms "excellent rinsing properties" or "improved rinsing properties" may be used, which means that there is less foam during rinsing.

[0010] Modes for Carrying Out the Invention [Powdered Detergent Composition for Textile Products] The present inventors have found that, with respect to a detergent composition containing an anionic surfactant and a cationic surfactant, the bactericidal effect of the cationic surfactant can be further improved by limiting the content of alkyl sulfate ester salts in the anionic surfactant. Furthermore, they have found that by limiting the content of nonionic surfactants having polyoxyethylene groups in the detergent composition, the foaming performance during washing is improved, and the foam disappears easily during rinsing. Moreover, they have found that the foam dissipation properties can be further improved by controlling the number of carbon atoms in the cationic surfactant, which generally has a bactericidal effect.

[0011] <Component (A)> Component (A) is component (a1) below, as well as any component (a2) and any component (a3) ​​below. Component (A) includes component (a1) below, and optionally includes components selected from components (a2) and (a3) ​​below. Component (a1): Anionic surfactant having a sulfonic acid group or a salt thereof Component (a2): Nonionic surfactant having a polyoxyalkylene group Component (a3): Alkyl sulfate ester salt

[0012] The composition of component (A) of the present invention is limited in terms of its bactericidal effect in the washing solution, foaming during washing, or foam removal during rinsing. Specifically, the mass ratio of the content of component (a2) in the composition to the total content of components (a1) and (a2), which is component (a2) / [component (a1) + component (a2)], is 0 or more and 0.15 or less, and the mass ratio of the content of component (a3) ​​in the composition to the total content of components (a1) and (a3), which is component (a3) / [component (a1) + component (a3)], is 0 or more and 0.15 or less.

[0013] [Component (a1)] Component (a1) is an anionic surfactant having a sulfonic acid group or a salt thereof, which has excellent foaming properties during washing and a cleaning effect on dirt adhering to textile products. Examples of component (a1) include alkylbenzene sulfonic acid or its salt, alkyl sulfonic acid or its salt, alkenyl sulfonic acid or its salt, alkenyl sulfo fatty acid ester or its salt. Specific examples of component (a1) include one or more anionic surfactants selected from alkylbenzene sulfonic acid or its salt having an alkyl group having 8 to 20 carbon atoms, alkyl sulfonic acid or its salt having an alkyl group having 8 to 20 carbon atoms, alkenyl sulfonic acid or its salt having an alkenyl group having 8 to 20 carbon atoms, and alkenyl sulfo fatty acid ester or its salt having an alkenyl group having 8 to 20 carbon atoms.

[0014] Alkylbenzenesulfonic acid or its salt having an alkyl group with 8 to 20 carbon atoms is not particularly limited, but examples include alkylbenzenesulfonates having an alkyl group with 8 or more carbon atoms, preferably 10 or more, more preferably 12 or more, and 20 or less, preferably 16 or less, preferably a linear alkyl group. Counterions that form salts of alkylbenzenesulfonates having an alkyl group with 8 to 20 carbon atoms can be alkali metal salts such as sodium and potassium, or alkanolamine salts with 2 to 8 carbon atoms.

[0015] Component (a1) preferably contains alkylbenzenesulfonic acid or a salt thereof, from the viewpoint of further enhancing the bactericidal effect of the cationic surfactant, wherein the proportion of alkylbenzenesulfonic acid or a salt thereof in component (a1) is preferably 50% by mass or more, more preferably 55% by mass or more, even more preferably 65% ​​by mass or more, even more preferably 75% by mass or more, even more preferably 85% by mass or more, even more preferably 96% by mass or more, and 100% by mass or less. The alkylbenzenesulfonic acid or a salt thereof is preferably an alkylbenzenesulfonic acid or a salt thereof having an alkyl group with 8 to 20 carbon atoms.

[0016] [Component (a2)] Component (a2) is a nonionic surfactant having a polyoxyalkylene group. Component (a2) is an optional component. Component (a2) generally has the effect of cleaning dirt attached to textile products, but its foaming ability during washing is inferior to that of anionic surfactants, or its foam-removing ability during rinsing may be inferior in the powder detergent composition for textile products of the present invention, so its amount used is limited in the present invention.

[0017] (a2) Component is preferably a nonionic surfactant having polyoxyalkylene groups with an average number of added moles of 3 moles to 50 moles. (a2) Component is more preferably a nonionic surfactant represented by the following general formula (3). R １ａ - (CO) ｘ O-(AO) ｍ -R ２ａ (3) [In the formula, R １ａ is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, AO is an alkylene oxy group selected from an alkylene oxy group having 2 carbon atoms and an alkylene oxy group having 3 carbon atoms, x is a number of 0 or 1, m is the average number of moles of AO added, a number of 3 to 50, and R ２ａ This is a hydrogen atom or a methyl group.

[0018] R in general formula (3) １ａ The number of carbon atoms is preferably 10 or more, more preferably 12 or more, and preferably 16 or less, in order to further improve cleaning performance. Also, R in general formula (3) １ａThe number of carbon atoms in general formula (3) is preferably 10 or more, preferably 16 or less, and more preferably 14 or less, in that it does not hinder foaming during washing of the powder detergent composition for textile products of the present invention. １ａ Examples of aliphatic hydrocarbon groups include aliphatic hydrocarbon groups selected from alkyl groups and alkenyl groups, with alkyl groups being preferred. In general formula (3), x is a number of 0 or 1, and the number 0 is preferred in terms of cleaning performance. In general formula (3), m is the average number of moles of AO added, and in terms of further improving the cleaning performance of the powder detergent composition for textile products, it is preferably 4 or more, more preferably 5 or more, even more preferably 6 or more, even more preferably 7 or more, and preferably 45 or less, more preferably 40 or less, even more preferably 35 or less, even more preferably 30 or less, even more preferably 25 or less, even more preferably 20 or less, even more preferably 18 or less, even more preferably 16 or less, even more preferably 14 or less, and even more preferably 12 or less. AO is an alkylene oxy group selected from alkylene oxy groups having 2 carbon atoms and alkylene oxy groups having 3 carbon atoms. Examples of AO include one or more groups selected from ethylene oxy groups and propylene oxy groups. In terms of not hindering foaming when washing textile products with a powder detergent composition for textile products, it is preferable that AO is an alkylene oxy group containing an ethylene oxy group. AO is preferably an ethylene oxy group.

[0019] [Component (a3)] Component (a3) ​​is an alkyl sulfate ester salt. Component (a3) ​​is an optional component. Component (a3) ​​forms a complex with the cationic surfactant component (B), which will be described later, and significantly reduces the bactericidal effect of the cationic surfactant. Therefore, in this invention, the amount of component (a3) ​​used is limited.

[0020] (a3) The number of carbon atoms in the alkyl group of component (a3) ​​is preferably 16 or less, preferably 15 or less, and more preferably 14 or less, from the viewpoint of reducing the bactericidal effect of the cationic surfactant. And preferably 10 or more. In other words, component (a3) ​​is preferably an alkyl sulfate ester salt having an alkyl group with 10 or more carbon atoms and 16 or fewer carbon atoms, preferably a linear alkyl group.

[0021] (a3) Component is preferably an alkyl sulfate ester salt in which the proportion of linear alkyl groups in the total alkyl groups, and moreover, the proportion of linear alkyl groups having 12 or more carbon atoms and 16 carbon atoms, is 50% by mass or more and 100% by mass or less, from the viewpoint of reducing the bactericidal effect of cationic surfactants.

[0022] (a3) Component is preferably an alkyl sulfate ester salt in which the proportion of a linear alkyl group having 12 carbon atoms in the total alkyl group is preferably 40% by mass or more, more preferably 50% by mass or more, more preferably 60% by mass or more, and 100% by mass or less, from the viewpoint of reducing the bactericidal effect of the cationic surfactant.

[0023] (a3) From the viewpoint of reducing the bactericidal effect of cationic surfactants, the alkyl sulfate ester salt is more preferably one in which the proportion of linear alkyl groups having 12 or more carbon atoms and 16 carbon atoms in the total alkyl group is 50% by mass or more, and the proportion of linear alkyl groups having 12 carbon atoms in the total alkyl group is preferably 40% by mass or more, more preferably 50% by mass or more, more preferably 60% by mass or more, and 100% by mass or less.

[0024] (a3) Examples of salts that make up the component include alkali metal salts such as sodium and potassium, alkanolamine salts, and alkaline earth metal salts such as magnesium and calcium.

[0025] The powder detergent composition for textile products of the present invention may contain anionic surfactants other than component (a1) and any component (a3). The mass ratio of the total amount of component (a1) and any component (a3) ​​contained in the powder detergent composition for textile products to the total amount of anionic surfactant, which is [content of component (a1) + content of component (a3)] / total amount of anionic surfactant, is preferably 0.80 or more, more preferably 0.85 or more, even more preferably 0.90 or more, even more preferably 0.95 or more, and preferably 1.0 or less, and may even be 1.0. Examples of anionic surfactants other than component (a1) and any component (a3) ​​include fatty acids having 10 to 18 carbon atoms or salts thereof. Examples of salts include one or more selected from alkali metal salts such as sodium salts and potassium salts, and alkaline earth metal salts such as magnesium salts.

[0026] [Composition of component (A)] The powder detergent composition for textile products of the present invention has a mass ratio of component (a2) to the total content of component (a1) and component (a2), which is component (a2) / [component (a1) + component (a2)] is 0 or more and 0.15 or less. The ratio of (a2) component / [(a1) component + (a2) component] is 0.15 or less, preferably 0.14 or less, more preferably 0.13 or less, even more preferably 0.12 or less, even more preferably 0.11 or less, even more preferably 0.10 or less, even more preferably 0.09 or less, even more preferably 0.08 or less, even more preferably 0.07 or less, even more preferably 0.06 or less, even more preferably 0.05 or less, even more preferably 0.04 or less, even more preferably 0.03 or less, even more preferably 0.02 or less, even more preferably 0.01 or less, and 0 or more. The ratio of (a2) component / [(a1) component + (a2) component] may be 0.

[0027] The powder detergent composition for textile products of the present invention has a mass ratio of (a3) ​​component / [(a1) component + (a3) ​​component], which is the mass ratio of the content of component (a3) ​​to the total content of component (a1) and component (a3), which is 0 or more and 0.15 or less. From the viewpoint of enhancing the bactericidal effect of the cationic surfactant, (a3) ​​component / [(a1) component + (a3) ​​component] is 0.15 or less, preferably 0.14 or less, more preferably 0.13 or less, even more preferably 0.12 or less, even more preferably 0.11 or less, even more preferably 0.10 or less, even more preferably 0.09 or less, even more preferably 0.08 or less, even more preferably 0.07 or less, even more preferably 0.06 or less, even more preferably 0.05 or less, even more preferably 0.04 or less, even more preferably 0.03 or less, even more preferably 0.02 or less, even more preferably 0.01 or less, and 0 or more. The (a3) ​​component / [(a1) component + (a3) ​​component] may be 0.

[0028] The amount of component (a3) ​​used in the present invention is limited because it inhibits the bactericidal effect of the cationic surfactant. In the powder detergent composition for textile products of the present invention, the mass ratio of component (a3) ​​to component (B), which is component (a3) / component (B), is preferably 5.0 or less, more preferably 4.9 or less, even more preferably 4.8 or less, even more preferably 4.7 or less, even more preferably 4.6 or less, even more preferably 4.5 or less, even more preferably 4.4 or less, even more preferably 4.3 or less, even more preferably 4.2 or less, even more preferably 4.0 or less, even more preferably 3 or less, even more preferably 2 or less, even more preferably 1 or less, and even more preferably 0 or more. The mass ratio of component (a3) / component (B) may be 0.

[0029] The powder detergent composition for textile products of the present invention contains 10% by mass or more, preferably 11% by mass or more, more preferably 12% by mass or more, even more preferably 13% by mass or more, even more preferably 14% by mass or more, and even more preferably 15% by mass or more of component (A) from the viewpoint of further improving the cleaning performance of dirt adhering to textile products. Furthermore, the powder detergent composition for textile products of the present invention contains 40% by mass or less, preferably 35% by mass or less, and more preferably 30% by mass or less of component (A) from the viewpoint of being less likely to inhibit the bactericidal effect of cationic surfactants.

[0030] In the present invention, the masses of component (a1) and component (a3) ​​are the values ​​obtained by converting the counterions to sodium ions.

[0031] <Component (B)> Component (B) of the present invention is component (b1) below and an optional component (b2) below. Component (B) includes component (b1) below and optionally includes component (a2) below. Component (b1): In the general formula (1) below, R １ The number of carbon atoms and R ２ Cationic surfactant (b2) component: In the following general formula (1), R １ The number of carbon atoms is 8 or more and 13 or less, R ２ A hydrocarbon group having 1 to 3 carbon atoms, R １ The number of carbon atoms and R ２ Cationic surfactants whose total number of carbon atoms is between 9 and 14.

[0032]

[0033] [In the formula, R １ R is an aliphatic hydrocarbon group having 8 to 16 carbon atoms. ２ R is a hydrocarbon group having 1 to 10 carbon atoms. ３ and R ４ Each of these is independently selected from hydrocarbon groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms, X － It is an anion.

[0034] In the present invention, by using component (b1) and an optional component (b2) as component (B) in a predetermined mass ratio, it is possible to maintain foaming properties during washing while improving foam rinsing properties during rinsing. Specifically, the mass ratio of the content of component (b2) to the content of component (b1) in the composition, i.e., component (b2) / component (b1), is between 0 and 1.5.

[0035] [Component (b1)] Component (b1) is R in the general formula (1) above. １ The number of carbon atoms and R ２ The cationic surfactant has a total number of carbon atoms of 15 or more and 23 or less. Component (b1) can impart a bactericidal effect to textile products and can improve the ability to rinse away foam while maintaining the foaming properties during washing of textile products.

[0036] (b1) Component R １ The number of carbon atoms and R ２ The total number of carbon atoms is 15 or more, preferably 16 or more, more preferably 17 or more, and 23 or less, preferably 18 or less, and more preferably 17 or less, from the viewpoint of maintaining foaming properties during washing while improving foam removal during rinsing.

[0037] (b1) Component R １ The number of carbon atoms is 8 or more, preferably 9 or more, more preferably 10 or more, even more preferably 11 or more, even more preferably 12 or more, even more preferably 13 or more, even more preferably 14 or more, even more preferably 15 or more, and 16 or less, from the viewpoint of maintaining foaming properties during washing of textile products while improving foam rinsing properties.

[0038] (b1) Component R １ However, in the case of an aliphatic hydrocarbon group with 8 to 10 carbon atoms, R ２ From the viewpoint of maintaining foaming properties during washing while improving foam removal during rinsing, the hydrocarbon group preferably has 7 to 10 carbon atoms, and more preferably a benzyl group or an aliphatic hydrocarbon group has 8 to 10 carbon atoms.

[0039] (b1) Component R １However, in the case of an aliphatic hydrocarbon group with 14 or more carbon atoms and 16 or fewer carbon atoms, R ２ From the viewpoint of maintaining foaming properties during washing while improving foam removal during rinsing, it is preferably a hydrocarbon group having 1 to 7 carbon atoms, more preferably a group selected from methyl, ethyl, propyl, and benzyl groups, and even more preferably a group selected from methyl, ethyl, and benzyl groups. ２ The group is preferably selected from a methyl group, an ethyl group, and a propyl group, and more preferably selected from a methyl group and an ethyl group, as it is less likely to inhibit foaming during washing.

[0040] (b1) Component R ３ and R ４ These are groups independently selected from hydrocarbon groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms. Specific examples include groups selected from methyl, ethyl, propyl, and 2-hydroxyethyl groups.

[0041] (b1) Component X － X is an anion. － Examples of anions include halogen ions and alkyl sulfate ions having 1 to 3 carbon atoms. Examples of halogen ions include chlorine ions, bromo ions, and iodide ions. Examples of alkyl sulfate ions having 1 to 3 carbon atoms include methyl sulfate ions, ethyl sulfate ions, and propyl sulfate ions.

[0042] (b1) The component is preferably one or more cationic surfactants selected from N-alkyltrimethylammonium salt (alkyl group is an aliphatic alkyl group having 15 to 16 carbon atoms), N-alkyl-N,N-dimethyl-N-ethylammonium salt (alkyl group is an aliphatic alkyl group having 15 to 16 carbon atoms), N-alkyl-N,N-dimethyl-N-benzylammonium salt (alkyl group is an aliphatic alkyl group having 8 to 16 carbon atoms), N,N-dialkyl (alkyl group is an aliphatic alkyl group having 8 to 10 carbon atoms)-N,N-dimethylammonium salt, and N,N-dialkyl (alkyl group is an aliphatic alkyl group having 8 to 10 carbon atoms)-N-ethyl-N-methylammonium salt.

[0043] Specific examples of N-alkyltrimethylammonium salts (where the alkyl group is an aliphatic alkyl group having 15 to 16 carbon atoms) include one or more cationic surfactants selected from N-palmityltrimethylammonium salts.

[0044] Specific examples of N-alkyl-N,N-dimethyl-N-ethylammonium salts (where the alkyl group is an aliphatic alkyl group having 15 to 16 carbon atoms) include one or more cationic surfactants selected from N-palmityl-N,N-dimethyl-N-ethylammonium salts.

[0045] Specific examples of N-alkyl-N,N-dimethyl-N-benzylammonium salts (where the alkyl group is an aliphatic alkyl group having 8 to 16 carbon atoms) include one or more cationic surfactants selected from N-octyl-N,N-dimethyl-N-benzylammonium salt, N-decyl-N,N-dimethyl-N-benzylammonium salt, N-lauryl-N,N-dimethyl-N-benzylammonium salt, N-myristyl-N,N-dimethyl-N-benzylammonium salt, and N-palmityl-N,N-dimethyl-N-benzylammonium salt.

[0046] Specific examples of N,N-dialkyl (alkaline is an aliphatic alkyl group with 8 to 10 carbon atoms)-N,N-dimethylammonium salts include one or more cationic surfactants selected from N,N-dioctyl-N,N-dimethylammonium salt, N,N-dinonyl-N,N-dimethylammonium salt, and N,N-didecyl-N,N-dimethylammonium salt.

[0047] Specific examples of N,N-dialkyl (where the alkyl group has 8 to 10 carbon atoms in an aliphatic alkyl group)-N-ethyl-N-methylammonium salt include one or more cationic surfactants selected from N,N-dioctyl-N-ethyl-N-methylammonium salt, N,N-dinonyl-N-ethyl-N-methylammonium salt, and N,N-didecyl-N-ethyl-N-methylammonium salt.

[0048] The counterions that form the salts mentioned above include halogen ions and alkyl sulfate ions having 1 to 3 carbon atoms. Examples of halogen ions include chlorine ions, bromo ions, and iodide ions. Examples of alkyl sulfate ions having 1 to 3 carbon atoms include methyl sulfate ions, ethyl sulfate ions, and propyl sulfate ions.

[0049] [Component (b2)] Component (b2) of the present invention is R in the general formula (1) above. １ The number of carbon atoms is 8 or more and 13 or less, R ２ A hydrocarbon group having 1 to 3 carbon atoms, R ３ and R ４ Each of these is independently selected from hydrocarbon groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms, R １ The number of carbon atoms and R ２ The cationic surfactant has a total number of carbon atoms between 9 and 14. Component (b2) is any component. Component (b2) has excellent bactericidal effect in the cleaning solution and can maintain foaming properties when washing textile products.

[0050] (b2) Component R １ The number of carbon atoms and R ２The total number of carbon atoms is 9 or more, preferably 10 or more, more preferably 11 or more, and 14 or less, preferably 13 or less, from the viewpoint of improving the sterilizing effect in the washing solution and maintaining foaming properties when washing textile products.

[0051] From the viewpoint of enhancing the bactericidal effect in the washing solution or maintaining the foaming properties when washing textile products, component (b2) R １ The number of carbon atoms is 8 or more, preferably 9 or more, more preferably 10 or more, and 13 or less, preferably 12 or less.

[0052] From the viewpoint of improving the sterilizing effect in the washing solution and maintaining foaming properties when washing textile products, component (b2) R ２ The number of carbon atoms is 1 or more, preferably 3 or less, and more preferably 2 or less.

[0053] (b2) Component R ２ From the viewpoint of improving the bactericidal effect in the washing solution, the group is a hydrocarbon group having 1 to 3 carbon atoms, preferably an alkyl group having 1 to 3 carbon atoms, more preferably a group selected from a methyl group, an ethyl group, and a propyl group, and even more preferably a group selected from a methyl group and an ethyl group.

[0054] (b2) Component R ３ and R ４ Each of these is independently selected from hydrocarbon groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms. Specific examples include groups selected from methyl, ethyl, propyl, and 2-hydroxyethyl groups. (b2) Component R ３ and R ４ From the viewpoint of improving the bactericidal effect in the washing solution and maintaining foaming properties during washing of textile products, these are preferably, independently, a methyl group and an ethyl group.

[0055] (b2) In component X － X is an anion. －Examples of anions include halogen ions and alkyl sulfate ions having 1 to 3 carbon atoms. Examples of halogen ions include chlorine ions, bromo ions, and iodide ions. Examples of alkyl sulfate ions having 1 to 3 carbon atoms include methyl sulfate ions, ethyl sulfate ions, and propyl sulfate ions.

[0056] (b2) Specific examples of the component include one or more cationic surfactants selected from N-alkyltrimethylammonium salts (where the alkyl group has 8 to 13 carbon atoms) and N-alkyl-N,N-dimethyl-N-ethylammonium salts (where the alkyl group has 8 to 12 carbon atoms).

[0057] Specific examples of N-alkyltrimethylammonium salts (where the alkyl group has 8 to 13 carbon atoms in an aliphatic alkyl group) include one or more cationic surfactants selected from N-decyltrimethylammonium salt, N-undecyltrimethylammonium salt, and N-lauryltrimethylammonium salt.

[0058] Specific examples of N-alkyl-N,N-dimethyl-N-ethylammonium salts (where the alkyl group is an aliphatic alkyl group with 8 to 12 carbon atoms) include one or more cationic surfactants selected from N-decyl-N,N-dimethyl-N-ethylammonium salt, N-undecyl-N,N-dimethyl-N-ethylammonium salt, and N-lauryl-N,N-dimethyl-N-ethylammonium salt.

[0059] The counterions that form the salts mentioned above include halogen ions and alkyl sulfate ions having 1 to 3 carbon atoms. Examples of halogen ions include chlorine ions, bromo ions, and iodide ions. Examples of alkyl sulfate ions having 1 to 3 carbon atoms include methyl sulfate ions, ethyl sulfate ions, and propyl sulfate ions.

[0060] [Composition of component (B)] Component (B) is component (b1) and an optional component (b2). The powder detergent composition for textile products of the present invention has a mass ratio of component (b2) to component (b1), which is 0 or more and 1.5 or less. From the viewpoint of maintaining foaming properties during washing while improving foam removal properties during rinsing, the ratio of component (b2) to component (b1) is 1.5 or less, preferably 1.4 or less, more preferably 1.0 or less, more preferably 0.8 or less, even more preferably 0.7 or less, even more preferably 0.55 or less, even more preferably 0.45 or less, even more preferably 0.35 or less, even more preferably 0.25 or less, even more preferably 0.20 or less, even more preferably 0.18 or less, even more preferably 0.12 or less, even more preferably 0.06 or less, and 0 or more. The ratio of component (b2) to component (b1) may be 0.

[0061] The powder detergent composition for textile products of the present invention contains component (B) in an amount of 0.5% by mass or more, preferably 0.6% by mass or more, more preferably 0.7% by mass or more, even more preferably 0.8% by mass or more, and 5% by mass or less, preferably 4.5% by mass or less, more preferably 4% by mass or less, even more preferably 3.5% by mass or less, even more preferably 3% by mass or less, and even more preferably 2.5% by mass or less, in order to further enhance the bactericidal effect.

[0062] In this invention, the mass of component (B) is the value obtained by converting the counterion anion to a chlorine ion.

[0063] <Component (C)> Component (C) is one or more alkaline agents selected from inorganic carbonates and inorganic bicarbonates. Component (C) facilitates the formation of a complex by ionic bonding between the sufficiently dissociated carboxylic acid group of component (D) or its salt in the cleaning solution and component (B), which is a cationic surfactant having a quaternary ammonium group. As a result, even in the presence of component (A), which is an anionic surfactant, the bactericidal effect against bacteria is maintained without a decrease in activity.

[0064] Specific examples of inorganic carbonates include one or more inorganic carbonates selected from monovalent or divalent metal carbonates and ammonium carbonate. Examples of monovalent metal carbonates include alkali metal carbonates, more specifically, one or more compounds selected from sodium carbonate, potassium carbonate, and lithium carbonate. Examples of divalent metal carbonates include alkaline earth metal carbonates, more specifically, magnesium carbonate.

[0065] Specific examples of inorganic bicarbonates include one or more inorganic bicarbonates selected from monovalent or divalent metal bicarbonates and ammonium bicarbonate. Examples of monovalent metal bicarbonates include alkali metal bicarbonates, more specifically, one or more compounds selected from sodium bicarbonate, potassium bicarbonate, and lithium bicarbonate. Examples of divalent metal bicarbonates include alkaline earth metal bicarbonates, more specifically, magnesium bicarbonate.

[0066] In terms of being less likely to inhibit the decrease in the bactericidal effect of component (B) even if component (a1) and any component (a3) ​​are present, the preferred component (C) is a compound selected from monovalent metal carbonates, ammonium carbonate, monovalent metal bicarbonates and ammonium bicarbonates, more preferably monovalent metal carbonates and monovalent metal bicarbonates, even more preferably one or more compounds selected from alkali metal carbonates and alkali metal bicarbonates, and even more preferably one or more compounds selected from sodium carbonate, potassium carbonate, sodium bicarbonate and potassium bicarbonate.

[0067] The powder detergent composition for textile products of the present invention contains component (C) in an amount that is less likely to inhibit the decrease in the bactericidal effect of component (B) even if component (a1) and any component (a3) ​​are present, preferably 5% by mass or more, more preferably 8% by mass or more, even more preferably 10% by mass or more, even more preferably 12% by mass or more, and preferably 60% by mass or less, more preferably 55% by mass or less, even more preferably 50% by mass or less, and even more preferably 50% by mass or less. This content is a preferred range in that component (C) readily forms a complex by ionic bonding with the cationic surfactant having a quaternary ammonium group, which is component (B), by sufficiently dissociating component (D) in the detergent solution, and the bactericidal effect can be maintained without a decrease in the bactericidal action against bacteria, even in the presence of the anionic surfactant, which is component (A).

[0068] <Component (D)> Component (D) is a polymer having a carboxylic acid group or a salt thereof and having a weight-average molecular weight of 3000 or more. By using component (D) with a specific molecular weight, the decrease in the bactericidal effect of component (B) can be suppressed even if component (a1) is present. Component (D) is not particularly limited, but examples include polymers selected from polyacrylic acid or its salts and copolymers of acrylic acid and maleic acid or their salts [hereinafter referred to as component (D1)]. Examples of polyacrylic acid or its salts include polyacrylic acid, sodium polyacrylate, potassium polyacrylate, etc., with sodium polyacrylate and potassium polyacrylate being preferred. Examples of copolymers of acrylic acid and maleic acid or their salts include copolymers of acrylic acid and maleic acid, sodium salts of copolymers of acrylic acid and maleic acid, potassium salts of copolymers of acrylic acid and maleic acid, etc., with sodium salts of copolymers of acrylic acid and maleic acid and potassium salts of copolymers of acrylic acid and maleic acid being preferred. The molar ratio of the acrylic acid-maleic acid copolymer is preferably 1 / 99 or more, more preferably 10 / 90 or more, and preferably 99 / 1 or less, and more preferably 90 / 10 or less, as expressed as the number of moles of acrylic acid / the number of moles of maleic acid.

[0069] Component (D1) of the present invention may be a copolymer containing monomers other than acrylic acid and maleic acid that are copolymerizable with acrylic acid and / or maleic acid, as long as they do not hinder the expression of the effects of the present invention. Examples of monomers other than acrylic acid and maleic acid that are copolymerizable with acrylic acid and / or maleic acid include vinyl monomers, acrylic monomers, styrene monomers, etc., and more specifically, examples include methacrylic acid, methyl acrylate, ethyl acrylate, methyl methacrylate, styrene, etc. The molar ratio of monomers other than acrylic acid and maleic acid that are copolymerizable with acrylic acid and / or maleic acid in component (D1) is not limited as long as it does not affect the physical properties of component (D1), such as water solubility, or the expression of the effects of the present invention, but preferably it is 0 mol% or more, preferably 5 mol% or less, more preferably 3 mol% or less, and even more preferably 0 mol% in component (D1). Accordingly, the polyacrylic acid or its salt, and the copolymer of acrylic acid and maleic acid or its salt of the present invention may be polymers or copolymers that contain, in the total constituent monomers, monomers other than acrylic acid and maleic acid that are copolymerizable with acrylic acid and / or maleic acid in an amount of 0 mol% to 5 mol%.

[0070] Other preferred (D) components include polymers having monomer units having at least one selected from carboxylic acid groups and acid anhydrides (hereinafter referred to as acid-type monomer units) and monomer units of hydrocarbons having 3 to 10 carbon atoms (hereinafter referred to as hydrocarbon-type monomer units) [hereinafter referred to as (D2) component]. The acid anhydrides here include structures obtained by the dehydration condensation of two oxoacid molecules, and more specifically, an anhydride structure from two carboxylic acid groups.

[0071] Acidic monomer structural units are obtained by polymerization of monomers that form such structures through polymerization. Examples of monomers from which the structural units are derived include maleic acid and maleic anhydride. The acidic monomer structural units are preferably one or more monomer structural units selected from maleic acid and maleic anhydride.

[0072] Furthermore, hydrocarbon monomer units are obtained by polymerization of polymerizable hydrocarbon compounds having 3 to 10 carbon atoms. Examples of polymerizable hydrocarbon compounds include pentene, isobutylene, diisobutylene, and styrene. Hydrocarbon monomer units are preferably one or more monomer units selected from pentene, isobutylene, diisobutylene, and styrene, more preferably one or more monomer units selected from diisobutylene and styrene, and even more preferably styrene monomer units.

[0073] Component (D2) is a polymer compound containing one or more maleic acid type monomers selected from maleic acid and maleic anhydride, and one or more hydrocarbon type monomers selected from pentene, isobutylene, diisobutylene, and styrene as constituent monomers, wherein the total amount of maleic acid type monomer units and hydrocarbon type monomers in the constituent monomers is 80 mol% or more. Component (D2) has a molar ratio of acid type monomer constituent units to hydrocarbon type monomer constituent units that is preferably 20 / 80 or more, more preferably 30 / 70 or more, and preferably 90 / 10 or less, more preferably 80 / 20 or less. Component (D2) has a total amount of maleic acid type monomer units and hydrocarbon type monomers in the constituent monomers that is 80 mol% or more, preferably 90 mol% or more, and more preferably 100 mol%.

[0074] The weight-average molecular weight of component (D) is 3000 or more, preferably 3500 or more, more preferably 4000 or more, even more preferably 5000 or more, even more preferably 6000 or more, even more preferably 7000 or more, even more preferably 8000 or more, even more preferably 9000 or more, even more preferably 10000 or more, and preferably 100000 or less, in order to further enhance the bactericidal effect of the complex formed by ionic bonding with the cationic surfactant having a quaternary ammonium group, which is component (B). • Column: Tosoh Corporation, product name: TSK-GEL guard PWXL Tosoh Corporation, product name: TSK-GEL G4000 PWXL Tosoh Corporation, product name: TSK-GEL G2500 PWXL • Mobile phase: 0.1 mol / L potassium phosphate dihydrogen aqueous solution / acetonitrile = 90 / 10 (volume ratio) • Detector: Differential refractive index detector • Column temperature: 40°C • Flow rate: 1.0 mL / min • Conversion standard substance: Polyacrylic acid [American Standard Corporation] • Sample: An aqueous polymer solution containing 0.8 g of solids is mixed with deionized water to prepare a total volume of 200 mL, and 10 μL of this prepared solution is taken and injected into the column.

[0075] Component (D) is preferably one or more polymers selected from polyacrylic acid or its salts having a weight-average molecular weight of 3,000 to 100,000 and copolymers of acrylic acid and maleic acid or its salts having a weight-average molecular weight of 3,000 to 100,000, and more preferably one or more polymers selected from polyacrylic acid or its salts having a weight-average molecular weight of 3,000 to 100,000.

[0076] The powder detergent composition for textile products of the present invention contains component (D) in an amount preferably 1% by mass or more, more preferably 1.2% by mass or more, even more preferably 1.5% by mass or more, even more preferably 1.7% by mass or more, even more preferably 2% by mass or more, even more preferably 2.5% by mass or more, even more preferably 3.0% by mass or more, even more preferably 3.5% by mass or more, even more preferably 4.0% by mass or more, even more preferably 5.0% by mass or more, and preferably 10% by mass or less, even more preferably 9% by mass or less, and more preferably 8% by mass or less, in order to further enhance the bactericidal effect through a complex formed by ionic bonding with component (B), which is a cationic surfactant having a quaternary ammonium group.

[0077] From the viewpoint of further enhancing the bactericidal effect on bacteria present in the cleaning solution, the powder detergent composition for textile products of the present invention has a mass ratio of component (D) to component (B), which is preferably 0.5 or more, more preferably 1 or more, even more preferably 1.2 or more, even more preferably 1.5 or more, even more preferably 2.0 or more, even more preferably 2.5 or more, even more preferably 3.0 or more, even more preferably 3.5 or more, even more preferably 4.0 or more, even more preferably 4.5 or more, even more preferably 5.0 or more, and preferably 10 or less, more preferably 9 or less, even more preferably 8 or less, even more preferably 7 or less, and even more preferably 6 or less.

[0078] In this invention, the mass of component (D) is the value obtained by converting the counterion to sodium ions.

[0079] <Optional Components, etc.> [Component (E)] The powder detergent composition for textile products of the present invention preferably contains one or more metal ion scavenging agents selected from zeolite, tripolyphosphate, and alkali metal silicate as component (E). Component (E) is generally used to improve the cleaning performance of dirt attached to textile products. However, in the present invention, it particularly has the effect of enhancing the bactericidal effect of the cationic surfactant, which is component (B). This is thought to be because it enhances the adsorption of the complex of the cationic surfactant, which is component (B), with component (a1) and any component (a3) ​​to bacteria, or because it enhances the effect of the cationic surfactant, which is component (B), on bacteria even if component (B) forms a complex with component (a1) and any component (a3).

[0080] Zeolite is also called crystalline aluminosilicate. Specifically, it can contain crystalline aluminosilicates such as type A, type X, and type P zeolites. Its average primary particle size is preferably 0.1 μm or more, more preferably 1 μm or more, and preferably 10 μm or less, and more preferably 5 μm or less. A preferred crystalline aluminosilicate is type A zeolite (for example, trade name "Toyobuilder": manufactured by Tosoh Corporation, oil absorption capacity according to JIS K 5101: 40 mL / 100 g or more). Other suitable options include P-type (e.g., trade names "Doucil A24", "ZSEO64", etc.; both manufactured by Crosfield; oil absorption capacity 60-150 mL / 100 g), X-type (e.g., trade name "WessalithXD"; manufactured by Degussa; oil absorption capacity 80-100 mL / 100 g), and hybrid zeolites described in International Publication No. 9842622.

[0081] Alkali metal ions are preferred as counterions in tripolyphosphate, and ions selected from sodium ions and potassium ions are more preferred. The mass ratio of sodium ions to potassium ions in the total counterions is preferably 70% by mass or more, and more preferably 85% by mass or more. Orthophosphate and pyrophosphate can be used in combination with tripolyphosphate. The preferred mass ratio of tripolyphosphate, orthophosphate, and pyrophosphate is tripolyphosphate / orthophosphate / pyrophosphate = (80 parts by mass or more and 97 parts by mass or less) / (1 part by mass or more and 10 parts by mass or less) / (2 parts by mass or more and 10 parts by mass or less) (amounts are calculated as anhydrous, and the total of the three parts by mass is 100 parts by mass).

[0082] As the alkali metal silicate, one or more types of sodium silicate selected from crystalline sodium silicate, amorphous sodium silicate, and liquid sodium silicate are preferred.

[0083] The metal ion scavenger, which is component (E), can be two or more metal ion scavengers selected from zeolite, tripolyphosphate, and alkali metal silicate, as this can further enhance the bactericidal effect on bacteria in the washing solution. When two or more components of (E) are included, zeolite and alkali metal silicate are preferred.

[0084] When the powder detergent composition for textile products of the present invention contains component (E), the content of component (E) in the composition is preferably 5% by mass or more, more preferably 6% by mass or more, even more preferably 7% by mass or more, even more preferably 8% by mass or more, even more preferably 9% by mass or more, even more preferably 10% by mass or more, even more preferably 11% by mass or more, and preferably 30% by mass or less, and more preferably 20% by mass or less.

[0085] [Other Components] The powder detergent composition for textile products of the present invention may further contain the following components: (i) From the viewpoint of fluidity and non-caking properties of the detergent particles, a surface modifier may be included. Examples of surface modifiers include calcium silicate, silicon dioxide, bentonite, talc, clay minerals such as clay, carboxymethylcellulose, and polyethylene glycol. In terms of storage stability, the content of the surface modifier is preferably 20% by mass or less, and more preferably 15% by mass or less, in the powder detergent composition for textile products of the present invention. In terms of surface modification, the content is preferably 1% by mass or more, more preferably 3% by mass or more, and more preferably 5% by mass or more, in the detergent composition of the present invention. (ii) Color transfer inhibitors such as polyvinylpyrrolidone (iii) Enzymes such as cellulase, amylase, pectinase, protease, and lipase (iv) Fluorescent dyes, such as those commercially available as Chinopearl CBS (trade name, manufactured by Ciba Specialty Chemicals) and Whitex SA (trade name, manufactured by Sumitomo Chemical Co., Ltd.) (v) Antioxidants such as butylhydroxytoluene, distyrenated cresol, sodium sulfite, and sodium bisulfite (vii) Dyes, fragrances, antimicrobial preservatives, and antifoaming agents such as silicone (viii) Water such as deionized water, tap water, or deionized water to which sodium hypochlorite has been added at a rate of 0.1 to 5 mg / kg relative to the mass of water

[0086] The powder detergent composition for textile products of the present invention is suitable for hand washing. In the case of hand washing, from the viewpoint of improving the cleaning power against oil stains, the powder detergent composition for textile products of the present invention is preferably used at a concentration of 0.5 g or more, more preferably 0.7 g or more, even more preferably 1 g or more, per 1 L of water, and preferably 30 g or less, more preferably 20 g or less, even more preferably 10 g or less, and even more preferably 5 g or less.

[0087] The powder detergent composition for textile products of the present invention can also be used in a washing machine depending on the purpose. When washing in a washing machine, from the viewpoint of cleaning power against oil stains and pH during use, the powder detergent composition for textile products of the present invention is preferably used at a concentration of 0.3 g or more, more preferably 0.5 g or more, even more preferably 1 g or more, and preferably 10 g or less, more preferably 7 g or less, and even more preferably 3 g or less per liter of water.

[0088] The laundry detergent composition of the present invention is in the form of a powder. The method for producing the laundry detergent composition of the present invention as a powder is not particularly limited, but examples include extrusion granulation, compression granulation, melt granulation, spray drying granulation, fluid bed granulation, crushing granulation, stirring granulation, liquid crystal granulation, vacuum freeze-drying granulation, and dry neutralization granulation, and these production methods may be used individually or in combination.

[0089] The bulk density of the powder detergent composition for textile products of the present invention varies depending on the manufacturing method, but is preferably 200 g / L or more, more preferably 300 g / L or more, more preferably 350 g / L or more, and preferably 1000 g / L or less, more preferably 900 g / L or less, and more preferably 800 g / L or less.

[0090] The average particle size of the powder detergent composition for textile products of the present invention is preferably 100 μm or more, more preferably 150 μm or more, more preferably 200 μm or more, and preferably 800 μm or less, more preferably 750 μm or less, and more preferably 700 μm or less. Spray drying granulation is suitable for obtaining compositions having the above-mentioned bulk density and average particle size range. The powder detergent composition for textile products of the present invention is used for washing textile products such as clothing, towels, bedding, and textile products for bedding (sheets, pillowcases, etc.). Other textile products that can be washed can also be targeted.

[0091] [Method for cleaning textile products] As a cleaning method using the powder detergent composition for textile products of the present invention, one method for cleaning textile products is to clean the textile products using a cleaning solution obtained by mixing the powder detergent composition for textile products of the present invention with water. The present invention provides a method for cleaning textile products using a cleaning solution obtained by mixing the powder detergent composition for textile products of the present invention with water having a German hardness of 1°dH or more and 50°dH or less.

[0092] The pH of the cleaning solution is preferably 5.5 or higher, more preferably 6 or higher, even more preferably 7 or higher, even more preferably 8 or higher, even more preferably 8.5 or higher, even more preferably 9 or higher, even more preferably 10 or higher, and preferably 10.5 or lower. The pH of the cleaning solution of the present invention can be measured, for example, using a glass electrode. The pH is measured at the temperature of the cleaning solution during cleaning, but may be measured at 25°C.

[0093] The alkalinity of the water mixed with the composition for preparing the cleaning solution can be selected from 0 mg / L to 200 mg / L. Furthermore, the German hardness of the water mixed with the composition for preparing the cleaning solution can be selected from 1°dH to 50°dH. Therefore, the water mixed with the composition for preparing the cleaning solution can be water with an alkalinity of 0 mg / L to 200 mg / L and a German hardness of 1°dH to 50°dH.

[0094] The water used for washing is known to contain carbonic acid, carbonate ions, and bicarbonate ions due to geological influences and the presence of microorganisms, and alkalinity is used as an indicator of the amount of these ions. Since the pKa of carbonate ions and bicarbonate ions in water is 10.3 and 6.3 (20°C), respectively, they have a pH buffering capacity around pH 10.3 and 6.3. Therefore, as the pH of the washing solution approaches these pKa values, small amounts of acidic or alkaline components will not easily cause a change in pH.

[0095] According to the present invention's method for washing textile products, even when using water containing hardness components, a bactericidal effect on bacteria present in the washing solution can be achieved. From the viewpoint of lowering the pH of the water used for washing, the German hardness of the water can be 1°dH or higher, and more preferably 5°dH or higher. On the other hand, from the viewpoint of improving washing power, the German hardness of the water is 50°dH or lower, preferably 40°dH or lower, more preferably 30°dH or lower, and more preferably 25°dH or lower.

[0096] In this specification, German hardness (°dH) refers to the concentration of calcium and magnesium in water, as defined by CaCO3. ３ This refers to a converted concentration expressed as 1 mg / L (ppm) = approximately 0.056°dH (1°dH = 17.8 ppm). The German hardness of the water used for washing can be adjusted based on a value calculated from the type and amount of hardness component added, for example, as described in the examples of this specification. Furthermore, if water with unknown hardness, such as tap water, is used for washing, the German hardness of the water can be determined by the chelation titration method using ethylenediaminetetraacetate disodium salt described below. The specific method for measuring the German hardness of water in this specification is shown below.

[0097] <Method for Measuring German Water Hardness> [Reagents] ・0.01 mol / l EDTA-2Na solution: 0.01 mol / l aqueous solution of disodium ethylenediaminetetraacetate (titration solution, 0.01 M EDTA-Na2, manufactured by Sigma-Aldrich) ・Universal BT indicator (product name: Universal BT, manufactured by Dojin Chemical Research Institute Co., Ltd.) ・Ammonia buffer solution for hardness measurement (a solution made by dissolving 67.5 g of ammonium chloride in 570 ml of 28 w / v% ammonia water and diluting the total volume to 1000 ml with deionized water) [Measurement of German hardness] (1) Take 20 ml of water to be used as a sample into a conical beaker using a volumetric pipette. (2) Add 2 ml of ammonia buffer solution for hardness measurement. (3) Add 0.5 ml of Universal BT indicator. Confirm that the solution after addition is reddish-purple. (4) While shaking the conical beaker well, add 0.01 mol / l EDTA-2Na solution dropwise from the burette, and the titration is terminated when the sample water turns blue. (5) The total hardness is calculated using the following formula: Hardness (°dH) = T × 0.01 × F × 56.0774 × 100 / A T: Titration volume of 0.01 mol / l EDTA-2Na solution (mL) A: Sample volume (20 mL, volume of sample water) F: Factor of 0.01 mol / l EDTA-2Na solution

[0098] In the present invention's method for washing textile products, it is preferable to hand wash the textile products containing the washing solution. Hand washing methods include rubbing the textile products by hand, rubbing the textile products together by hand, and scrubbing the textile products using a tool such as a brush with fiber bundles implanted in it. In the case of hand washing, from the viewpoint of improving the washing power against oil stains, the washing agent composition for textile products of the present invention is preferably used at a concentration of 0.5 g or more, more preferably 0.7 g or more, even more preferably 1 g or more, per 1 L of water, and preferably 30 g or less, more preferably 20 g or less, even more preferably 10 g or less, and even more preferably 5 g or less.

[0099] The present invention also allows for washing textile products in a washing machine. When washing in a washing machine, the present invention's textile detergent composition is preferably used at a concentration of 0.3 g or more, more preferably 0.5 g or more, even more preferably 1 g or more, and preferably 10 g or less, more preferably 7 g or less, and even more preferably 3 g or less, per liter of water.

[0100] In the present invention's method for washing textile products, it is preferable to wash the textile product 10 to 60 minutes after the initial contact between the washing solution and the textile product. In the present invention's method for washing textile products, it is preferable to hand wash the textile product 10 to 60 minutes after the initial contact between the washing solution and the textile product. For example, in the present invention's method for washing textile products, the textile product can be hand washed after being immersed in the washing solution for 10 to 60 minutes.

[0101] The washing method of the present invention may include a step of rinsing the washed textile product with water. The water used for rinsing preferably has the aforementioned German hardness. The water used for rinsing preferably has the aforementioned alkalinity. The water used for rinsing preferably has the aforementioned German hardness and alkalinity.

[0102] The present invention discloses the following powder detergent compositions for textile products and methods for cleaning textile products. The matters described in the present invention regarding the powder detergent compositions for textile products and methods for cleaning textile products can be appropriately applied to the following embodiments. <1> A powder detergent composition for textile products, comprising the following components (A) in an amount of 10% to 40% by mass, the following component (B) in an amount of 0.5% to 5% by mass, the following component (C), and the following component (D), wherein the mass ratio of the content of component (a2) to the total content of components (a1) and (a2), i.e., (a2) / [(a1)+(a2)], is 0 to 0.15, the mass ratio of the content of component (a3) ​​to the total content of components (a1) and (a3), i.e., (a3) / [(a1)+(a3)], is 0 to 0.15, and the mass ratio of the content of component (b2) to the content of component (b1), i.e., (b2) / (b1), is 0 to 1.5. (A) Component: Component (a1) below, and any component (a2) and any component (a3) ​​below. (a1) Component: Anionic surfactant having a sulfonic acid group or a salt thereof. (a2) Component: Nonionic surfactant having a polyoxyalkylene group. (a3) ​​Component: Alkyl sulfate salt. (B) Component: Component (b1) below, and any component (b2) below. (b1) Component: In the following general formula (1), R １ The number of carbon atoms and R ２ Cationic surfactant (b2) component: In the following general formula (1), R １ The number of carbon atoms is 8 or more and 13 or less, R ２ A hydrocarbon group having 1 to 3 carbon atoms, R １ The number of carbon atoms and R ２ Cationic surfactants whose total number of carbon atoms is between 9 and 14.

[0103]

[0104] [In the formula, R １ R is an aliphatic hydrocarbon group having 8 to 16 carbon atoms. ２ R is a hydrocarbon group having 1 to 10 carbon atoms. ３ and R ４Each of these is independently selected from hydrocarbon groups having 1 to 3 carbon atoms and hydroxyalkyl groups having 1 to 3 carbon atoms, X － It is an anion. (C) Component: One or more alkaline agents selected from inorganic carbonates and inorganic bicarbonates (D) Component: A polymer having a carboxylic acid group or a salt thereof and having a weight-average molecular weight of 3000 or more

[0105] <2> The powder detergent composition for textile products according to <1>, wherein component (a1) is one or more anionic surfactants selected from alkylbenzenesulfonic acid or a salt thereof having an alkyl group having 8 to 20 carbon atoms, alkylsulfonic acid or a salt thereof having an alkyl group having 8 to 20 carbon atoms, alkenylsulfonic acid or a salt thereof having an alkenyl group having 8 to 20 carbon atoms, and alkenylsulfo fatty acid ester or a salt thereof having an alkenyl group having 8 to 20 carbon atoms.

[0106] <3> The powder detergent composition for textile products according to <1> or <2>, wherein component (a1) comprises alkylbenzenesulfonic acid or a salt thereof, preferably alkylbenzenesulfonic acid or a salt thereof having an alkyl group having 8 to 20 carbon atoms, and the proportion of the alkylbenzenesulfonic acid or a salt thereof in component (a1) is 50% by mass or more and 100% by mass or less.

[0107] <4> A powder detergent composition for textile products according to any one of <1> to <3>, wherein component (a2) is a nonionic surfactant represented by the following general formula (3). １ａ - (CO) ｘ O-(AO) ｍ -R ２ａ (3) [In the formula, R １ａ is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, AO is an alkylene oxy group selected from an alkylene oxy group having 2 carbon atoms and an alkylene oxy group having 3 carbon atoms, x is a number of 0 or 1, m is the average number of moles of AO added, a number of 3 to 50, and R ２ａ This is a hydrogen atom or a methyl group.

[0108] <5> The powder detergent composition for textile products according to <4>, wherein in general formula (3), AO is one or more groups selected from ethyleneoxy group and propyleneoxy group.

[0109] <6> The powder detergent composition for textile products according to <5>, wherein in general formula (3), AO is an ethylene oxy group.

[0110] <7> A powder detergent composition for textile products according to any one of <1> to <6>, wherein the number of carbon atoms in the alkyl group of component (a3) ​​is 10 or less and 16 or more carbon atoms.

[0111] <8> The powder detergent composition for textile products according to <7>, wherein component (a3) ​​is an alkyl sulfate ester salt having a linear alkyl group having 10 to 16 carbon atoms.

[0112] <9> The powder detergent composition for textile products according to <8>, wherein component (a3) ​​is an alkyl sulfate ester salt in which the proportion of a linear alkyl group having 12 to 16 carbon atoms in the total alkyl group is 50% by mass or more and 100% by mass or less.

[0113] <10> The powder detergent composition for textile products according to <9>, wherein component (a3) ​​is an alkyl sulfate ester salt in which the proportion of a linear alkyl group having 12 carbon atoms in the total alkyl group is 40% by mass or more and 100% by mass or less.

[0114] <11> A powder detergent composition for textile products according to any one of <1> to <10>, comprising (E) 5% by mass or more and 30% by mass or less of one or more metal ion scavenging agents selected from zeolite, tripolyphosphate and alkali metal silicate.

[0115] <12> The powder detergent composition for textile products according to <11>, wherein component (E) contains two or more metal ion scavenging agents selected from zeolite, tripolyphosphate, and alkali metal silicate.

[0116] <13> A powder detergent composition for textile products according to any one of <1> to <12>, wherein the mass ratio of the content of component (a3) ​​to the content of component (B), i.e., component (a3) / component (B), is 0 or more and 5.0 or less.

[0117] <14> (b1) Component is R in the general formula (1) above. １ However, it is an aliphatic hydrocarbon group having 14 or more carbon atoms and 16 or fewer carbon atoms, R ２ A powder detergent composition for textile products according to any one of <1> to <13>, wherein the hydrocarbon group has 1 to 7 carbon atoms.

[0118] <15> (b1) component is R in the general formula (1) above. ２ The powder detergent composition for textile products according to <14>, wherein the alkyl group has 1 to 6 carbon atoms.

[0119] <16> (b1) component is R in the general formula (1) above. ２ The powder detergent composition for textile products described in <15>, wherein the group is selected from a methyl group, an ethyl group, and a propyl group.

[0120] <17> (b2) component is R in the general formula (1) above. １ However, it is an aliphatic hydrocarbon group having 10 to 13 carbon atoms, R ２ A powder detergent composition for textile products according to any one of <1> to <16>, wherein the alkyl group has 1 to 3 carbon atoms.

[0121] <18> In the above general formula (1), the (b2) component is R ２ The powder detergent composition for textile products described in <17>, wherein the group is selected from a methyl group, an ethyl group, and a propyl group.

[0122] <19> In the above general formula (1), R ３ and R ４ However, each is independently a hydrocarbon group having 1 to 3 carbon atoms, as described in any of <1> to <18>.

[0123] <20> A powder detergent composition for textile products according to any one of <1> to <19>, wherein component (D) is one or more polymers selected from polyacrylic acid or a salt thereof having a weight-average molecular weight of 3,000 to 100,000 and acrylic acid / maleic acid copolymer or a salt thereof having a weight-average molecular weight of 3,000 to 100,000.

[0124] <21> A powder detergent composition for textile products according to any one of <1> to <20>, wherein the mass ratio of the content of component (D) to the content of component (B) in the composition, i.e., component (D) / component (B), is 0.5 or more and 10 or less.

[0125] <22> A powder detergent composition for textile products according to any one of <1> to <21>, wherein the content of component (C) is 10% by mass or more and 60% by mass or less.

[0126] <23> The powder detergent composition for textile products according to <22>, wherein the content of component (C) is 25% by mass or more and 60% by mass or less.

[0127] <24> A powder detergent composition for textile products according to any one of <1> to <23>, wherein component (C) is one or more alkaline agents selected from monovalent or divalent metal carbonates, ammonium carbonates, monovalent or divalent metal bicarbonates, and ammonium bicarbonates.

[0128] <25> The powder detergent composition for textile products according to <24>, wherein the monovalent metal carbonate is an alkali metal carbonate, the monovalent metal bicarbonate is an alkali metal bicarbonate, the divalent metal carbonate is an alkaline earth metal carbonate, and the divalent metal bicarbonate is an alkali metal bicarbonate.

[0129] <26> A powder detergent composition for textile products according to any one of <1> to <25>, for hand washing.

[0130] <27> A method for cleaning textile products, comprising cleaning textile products with a cleaning solution obtained by mixing a powder cleaning agent composition for textile products described in any one of items <1> to <26> with water having a German hardness of 1°dH or more and 50°dH or less.

[0131] <28> The method for washing textile products according to <27>, wherein the textile products are washed after 10 to 60 minutes have elapsed since the initial contact between the washing solution and the textile products.

[0132] Examples <Composition> The powder detergent compositions for textile products described in Tables 1 to 4 were prepared using the following: [(A) component] ・(a1) component (a1-1): sodium dodecylbenzenesulfonate [(a1) component] ・(a2) component (a2-1): polyoxyethylene (6) lauryl ether [(The number in parentheses is the average number of moles of oxyethylene groups added)] ・(a3) component (a3-1): sodium alkyl sulfate [(a3) component, alkyl group composition: lauryl group / myristyl group / palmityl group = 67 / 28 / 5 (mass ratio)]

[0133] [Component (B)] (b-1): Palmityltrimethylammonium chloride (manufactured by Wako Pure Chemical Industries, Ltd.) (b-2): Lauryltrimethylammonium chloride (manufactured by Wako Pure Chemical Industries, Ltd.)

[0134] [(C) Components] (c-1): Sodium carbonate (manufactured by Wako Pure Chemical Industries, Ltd.) (c-2): Sodium bicarbonate (manufactured by Wako Pure Chemical Industries, Ltd.)

[0135] [Component (D)] (d-1): Sodium polyacrylate (weight-average molecular weight 10,000)

[0136] [Component (E)] (e-1): Silicate (43% by mass sodium silicate aqueous solution (manufactured by Tokuyama SIAM Silica Co., Ltd.), the table shows the mass percentage of the effective content.) (e-2): Zeolite [Type 4A zeolite, average particle size 3 μm (manufactured by Tosoh Corporation)]

[0137] Sodium sulfate: anhydrous neutral mirabilite (manufactured by Shikoku Chemical Industry Co., Ltd.) Polyethylene glycol: manufactured by Sigma-Aldrich, Polyethylene glycol 6000 Carboxymethyl cellulose: manufactured by Daicel Finechem Ltd., CMC Daicel 1150 Tinopal CBS: fluorescent dye, manufactured by BASF Tinopal DM: fluorescent dye, manufactured by BASF Enzyme: Savinase 12T, manufactured by Novozymes, protease granule, the proportion of enzyme protein in 1 g of granule is 80 mg / g. The values in the table indicate the mass of enzyme protein. Fragrance: fragrance composition {the numbers in parentheses are parts by mass, phenylethyl alcohol (10), camphor (20), citronellal (10), l-menthol (20), aldehyde C-9 (10), nerol (10), diphenyl oxide (20)}

[0138] <Performance evaluation>For the powder detergent compositions obtained in the examples and comparative examples, the following evaluations were carried out. The results are shown in Tables 1 to 4.

[0139] [Sterilization test method for cleaning solution] The sterilization effect against Moraxella osloensis was evaluated. The bacteria used were Moraxella osloensis 49 isolated from worn clothing. The bacteria were pre-cultured in SCD-LP agar medium (manufactured by Nippon Pharmaceutical Co., Ltd.) in advance, and for 10 ml of the cleaning solution in which the detergent composition was completely dissolved so that the concentration of the detergent composition became 1 g / L, 0.1 ml of the bacterial solution (initial bacterial count 1.0×10 ９ CFU / ml) was inoculated. After contacting for 15 minutes at 25°C and 150 rpm using a shaking incubator, 0.5 ml of the inoculated cleaning solution was dropped into 4.5 ml of LP diluent (manufactured by Nippon Pharmaceutical Co., Ltd.), and after inactivating the sterilizing component, serial dilution of the extract was performed. After mixing on SCD-LP agar medium (manufactured by Nippon Pharmaceutical Co., Ltd.), static culture was carried out at 37°C for 1 day. The number of colonies obtained was measured, and the value obtained by subtracting the common logarithm value of the viable bacteria count of each example or comparative example from the common logarithm value of the viable bacteria count treated in the same manner with sterilized ion-exchanged water (logarithm value) was used as the sterilization activity value. In this evaluation, a sterilization activity value of 5 or more was considered qualified, and the higher the sterilization activity value, the higher the sterilization effect.

[0140] [Evaluation of Foaming and Rinsing Properties] <Evaluation Textile Products> Underwear, cotton knit fabric, or cotton / polyester broadcloth blend dyed fabric were used as evaluation textile products. Two pieces of the artificial soiled fabric shown below and one piece of the mud-stained fabric shown below were sewn onto the chest area of ​​each of three men's size L crew neck undershirts (manufactured by Gunze Corporation, product name Gunze YG, 100% cotton, approximately 100g / shirt). Furthermore, the following model sebum stain A, heated to 60°C, was applied to the collar area of ​​the undershirts using a dropper (φ: 2mm) so that the total amount for the three shirts was 1g (approximately 0.33g per shirt). These three shirts were used as evaluation garments. (1) Artificial stained cloth The artificial stained cloth used was a 6cm x 6cm cotton / polyester broadcloth blend dyed cloth (cotton / polyester ratio = 35 / 65, purchased from Tanigashira Shoten) that was gravure coated with 100mg of artificial stain consisting of the following composition per cloth. ・Artificial stain The composition containing A, B, C, D, and E below was used as the artificial stain. The mass % of each is the proportion in the final artificial stain composition, and the amount of B was adjusted so that the total was 100% by mass. A: Model sebum stain (used in an amount such that the mass percentages in the artificial stubborn dirt are 0.44% lauric acid, 3.15% myristic acid, 2.35% pentadecanoic acid, 6.31% palmitic acid, 0.44% heptadecanoic acid, 1.6% stearic acid, 7.91% oleic acid, 13.33% triolein, 2.22% n-hexadecyl palmitate, and 6.66% squalene) B: Hard water obtained by weighing 105 mg of calcium chloride dihydrate and dissolving it in distilled water to make 1,000 ml C: 1.98% by mass of egg white lecithin liquid crystal (prepared by dissolving 11.37 g of arginine hydrochloride, 4.20 g of histidine, and 2.44 g of serine in 80 ml of distilled water, adjusting the pH to 5.0 with concentrated hydrochloric acid, and then thoroughly mixing this solution with egg white lecithin in a mixer) D: 8.11% by mass of Kanuma red clay E: 0.025% by mass of carbon black

[0141] (2) Mud-stained cloth The mud-stained cloth used was prepared using 10 cm x 10 cm cotton knit fabric (100% cotton, purchased from Tanigashira Shoten) by the manufacturing method described in paragraphs 0030 to 0038 of Japanese Patent Publication No. 10-204769.

[0142] (3) Model sebum stain A Model sebum stain A had the following composition. This composition is the same mass ratio as A in the artificial stain. ・Composition of model sebum stain A: Lauric acid 0.44 parts by mass, myristic acid 3.15 parts by mass, pentadecanoic acid 2.35 parts by mass, palmitic acid 6.31 parts by mass, heptadecanoic acid 0.44 parts by mass, stearic acid 1.6 parts by mass, oleic acid 7.91 parts by mass, triolein 13.33 parts by mass, n-hexadecyl palmitate 2.22 parts by mass, squalene 6.66 parts by mass

[0143] <Evaluation of Foaming Properties of Detergent Composition> 3 liters of water at a temperature of 30°C were poured into a model circular washbasin (a cylindrical acrylic container with a base diameter (inner diameter) of 25 cm and a height of 15 cm). This water was prepared by adding calcium chloride and magnesium chloride to deionized water to achieve a German hardness of 5°dH (Ca / Mg = 7 / 3, mass ratio) or 10°dH (Ca / Mg = 7 / 3, mass ratio), then adding sodium bicarbonate to achieve an alkalinity of 60 mg / L, and adjusting the pH to 7 with hydrochloric acid. Next, 12 g of the powder detergent composition was added to the water and dissolved. Three garments for evaluation were placed in the detergent solution and left for 30 minutes, fully submerged in the solution. After the waiting period, each garment for evaluation was rubbed for 15 seconds for the artificially soiled cloth and for 30 seconds for the mud-stained cloth (one back-and-forth motion (approximately 1 second) while rubbing the cloths together was counted as one stroke). Next, the garments were removed and squeezed 10 cm above the basin so that their water content was approximately 100-140% of the garment's volume. After 5 minutes, the height of the foam from the liquid surface was measured against the wall of the basin. The foam height of the comparative composition was used as a baseline, and a composition was deemed acceptable if it produced foam equal to or greater than the comparative composition.

[0144] <Evaluation of Rinsing Properties of the Detergent Composition> 3 liters of water at a temperature of 30°C were poured into a model circular washbasin (a cylindrical acrylic container with a base diameter (inner diameter) of 25 cm and a height of 15 cm). This water was prepared by adding calcium chloride and magnesium chloride to deionized water so that the German hardness was 5°dH (Ca / Mg = 7 / 3, mass ratio) or 10°dH (Ca / Mg = 7 / 3, mass ratio), and then adding sodium bicarbonate to make the alkalinity 60 mg / L, and adjusting the pH to 7 with hydrochloric acid. Three garments that had been squeezed out in the foaming properties evaluation of the detergent composition were then placed in the water. After loosening the garments in the rinse water, each garment was lifted out of the water by holding the collar (lifting the entire garment to a height of approximately 5 cm above the washbasin), and then returned to the water. After repeating this up-and-down rinsing motion 10 times for each garment being evaluated, the garment was squeezed 10 cm above the basin so that its water content was approximately 100-140% of that of underwear. The rinse water was then observed immediately after rinsing and spinning of the three garments, and points were assigned according to the following criteria to evaluate the rinsability. The comparative example composition was evaluated first, and its rank was determined. Next, each example was evaluated using the same method as the comparative example. A rank lower than that of the comparative example was considered acceptable.

[0145] Rank 6: Bubbles with a foam height of 1 cm or more remain across the entire surface of the liquid. 5: Bubbles remain across the entire surface of the liquid (less than 1 cm). 4: Bubbles (less than 1 cm) remain on about half of the surface of the liquid, or the rinse water is so cloudy that the bottom of the basin cannot be seen. 3: Bubbles (less than 1 cm) remain on about a quarter of the surface of the liquid, or the rinse water is so cloudy that the bottom of the basin can barely be seen. 2: Fine bubbles remain on the surface of the liquid, but the rinse water is clear enough to see the bottom. 1: No bubbles remain on the surface of the liquid, and the rinse water is clear enough to see the bottom.

[0146] [Evaluation of cleaning power for sebum stains attached to clothing] (1) The artificially soiled cloth used was the artificially soiled cloth described above. (2) Five of the artificially soiled cloths were placed in a cleaning solution (30°C) made by adding 1 g of the powder cleaning agent composition described in Tables 1 to 4 to 1 liter of water with a cleaning hardness of 5°dH (Ca / Mg = 6 / 4, mass ratio). The cloths were washed using a turgotometer at 100 revolutions per minute for 10 minutes. The cleaning power was measured by measuring the reflectance at 550 nm of the unsoiled cloth and the artificially soiled cloth before and after washing using a colorimeter (Z-300A manufactured by Nippon Denshoku Industries Ltd.), and the cleaning rate (%) was calculated using the following formula. The average value was calculated by measuring each of the five soiled cloths. A cleaning rate of 30% or higher is considered acceptable, and a higher value is preferable. Cleaning rate (%) = 100 × [(Reflectance of artificially soiled fabric after cleaning - Reflectance of artificially soiled fabric before cleaning) / (Reflectance of raw fabric - Reflectance of artificially soiled fabric before cleaning)] All of the powder detergent compositions for textile products described in the examples and comparative examples in Tables 1 to 4 passed the test.

[0147]

[0148]

[0149] * Hardness of the water used for preparing the cleaning solution and rinsing (the same applies hereinafter)

[0150]

[0151]

Claims

DEPCT631. Detergent mixtures for textile products, which include: the following component (A) in amounts of 10% by mass or more and 40% by mass or less; the following component (B) in amounts of 0.5% by mass or more and 5% by mass or less; the following component (C); and the following component (D), where the ratio by mass of the amount of component (a2) to the total amount of component (a1) and component (a2), component (a2) / [component (a1) + component (a2)], is 0 or more and 0.15 or less; the ratio by mass of the amount of component (a3) ​​to the total amount of component (a1) and component (a3), component (a3) / [component (a1) + component (a3)], is 0 or more and 0.15 or less; and the ratio by mass of the amount of component (b2) to the amount of component (b1), component (b2) / component (b1), is 0 or more and 1.5 or less: Component (A): The following component (a1),and the following optional component (a2) and the following optional component (a3): Component (a1): anionic surfactant containing a sulfonate group or its salt; Component (a2): nonionic surfactant containing a polyoxyalkylene group; and Component (a3): alkyl sulfate; Component (B): the following component (b1) and the following optional component (b2): Component (b1): a cationic surfactant which, in the following formula (1), the sum of the number of carbons in R1 and the number of carbons in R2 is 15 or more and 23 or less; and component (b2): a cationic surfactant which, in the following formula (1), R1 has 8 or more and 13 or less carbons, R2 is a hydrocarbon group with 1 or more and 3 or less carbons, and the sum of the number of carbons in R1 and the number of carbons in R2 is 9 or more and 14 or less: [Formula 1](chemical formula) X-(1) where R1 is an aliphatic hydrocarbon group with 8 or more and 16 or less carbons, R2 is a hydrocarbon group with 1 or more and 10 or less carbons,Each independent R3 and R4 group is a group selected from hydrocarbon groups containing 1 or more and 3 or fewer carbons and hydroxyl alkyl groups containing 1 or more and 3 or fewer carbons, and X- is the anion; component (C): one or more alkali agents selected from inorganic carbonates and inorganic bicarbonates; and component (D): a polymer containing a carboxylic acid group or its salt and having a weight-average molecular weight of 3000 or more.

2. A detergent mixture for textile products according to claim 1, which consists of 1. A detergent mixture for textile products according to claim 1 or 2, in which the ratio by mass of the amount of component (a3) ​​to the amount of component (B), component (a3) / component (B), is 0 or more and 5.0 or less.

2. A detergent mixture for textile products according to any of claims 1 through 3, in which the formulation (1),Each independent group of R3 and R4 is a hydrocarbon group containing 1 or more and 3 or fewer carbons.

5. Detergent mixtures for textile products under any of the claims 1 through 4, in which component (D) is one or more polymers selected from polyacrylic acids with a weight-average molecular weight of 3000 or more and 100000 or less, or their salts, and acrylic acid / maleic acid copolymers with a weight-average molecular weight of 3000 or more and 100000 or less, or their salts.

6. Detergent mixtures for textile products under any of the claims 1 through 5, in which component (C) is present in an amount of 10% by mass or more and 60% by mass or less.

7. Detergent mixtures for textile products under any of the claims 1 through 6, for use in hand washing.

8. Methods for washing textile products.This includes: Washing textile products with washing liquids obtained by mixing the detergent mixture for textile products according to any of the claims 1 through 7 with water that is hard 1 degree of hardness or more and 50 degrees of hardness or less; 9. The method for washing textile products according to claim 8, where the textile products are washed after 10 minutes or more and 60 minutes or less from the time of the first contact of the textile products with the washing liquid.