Detergent article

Abstract

To create a high sense of detergency and inhibit color migration of a pigment contained in pigment-containing particles into a fiber or the like.SOLUTION: There is provided a detergent article which comprises a detergent composition containing (a) pigment-containing particles [hereinafter, referred to as a component (a)] and (b) a surfactant and a water-soluble film comprising (c) a water-soluble polymer [hereinafter, referred to as a component (c)] for packaging the detergent composition as a constituent component, wherein the detergent composition contains 2 mass% or more and 15 mass% or less of the component (a) and the mass ratio (a) / the water soluble film of the mass of the component (a) contained in the detergent composition packaged in the water-soluble film to the mass of the water-soluble film comprising the component (c) as a constituent component is 0.1 or more and 10 or less.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a cleaning agent article comprising a cleaning agent composition packaged in a water-soluble film. [Background technology]

[0002] In recent years, with an increasing preference for convenience among consumers, there has been a demand for cleaner compositions that are easier to use. From the viewpoint of improving the usability of the cleaner composition, for example, a cleaner article in which the cleaner composition is packaged in a water-soluble film has been disclosed. Furthermore, in recent years, from the viewpoint of reducing chemicals and the environmental load, there has been a demand to reduce the amount of detergent compositions used, particularly the amount of surfactants. In order to better reflect the performance of the detergent composition, a coloring component such as a dye is used for the purpose of imparting aesthetics to the composition.

[0003] Patent Document 1 discloses a laundry detergent composition containing a hue dye and a pearlescent agent, in which the hue dye exhibits a hue efficiency of at least 10 and a cleaning removal value in the range of about 30% to about 85%. Patent Document 2 discloses a liquid composition comprising a transparent or translucent liquid medium and solid particles contained in the liquid medium, the liquid composition being contained in a pouch made of a transparent or translucent water-soluble material such that the individual solid particles are visible from the outside of the pouch. Patent Document 3 discloses a non-fibrous laundry detergent sheet having a first plane and a second opposing plane, the first plane including a first predetermined individual area and a second predetermined individual area, and the first individual area and / or the second individual area including one or more fabric hueing agents selected from the group consisting of dyes, dye-clay complexes, organic pigments, inorganic pigments, and combinations thereof. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 2009-530478 [Patent Document 2] Special Publication No. 2004-518003 [Patent Document 3] Special Publication No. 2020-507646 Summary of the Invention [Problem to be solved by the invention]

[0005] It is believed that by incorporating a large amount of pigment-containing particles into a detergent composition, a feeling of strong detergency can be created. On the other hand, from the viewpoint of finish quality, it is required that the pigment-containing particles dissolve quickly in a washing bath and that the pigment contained in the pigment-containing particles does not transfer to fibers or the like. The present invention provides a detergent article in which a detergent composition is packaged in a water-soluble film, which can create a feeling of high cleaning power and inhibits color transfer of the pigment contained in the pigment-containing particles to fibers, etc. [Means for solving the problem]

[0006] The present invention relates to a detergent article comprising: a detergent composition containing (a) dye-containing particles [hereinafter referred to as component (a)] and (b) a surfactant; and a water-soluble film packaging the detergent composition and containing (c) a water-soluble polymer [hereinafter referred to as component (c)] as a constituent component, wherein the detergent composition contains 2 to 15% by mass of component (a), and the mass ratio (a) / water-soluble film of the mass of component (a) contained in the detergent composition packaged in the water-soluble film to the mass of the water-soluble film containing component (c) as a constituent component is 0.1 to 10. Effect of the Invention

[0007] According to the present invention, there is provided a detergent article in which a detergent composition is packaged in a water-soluble film, which can create a feeling of high cleaning power and suppress the remaining undissolved pigment-containing particles and the transfer of the pigment contained in the pigment-containing particles to fibers, etc. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The mechanism by which the cleaning article of the present invention can create a strong feeling of cleaning power and inhibit the color transfer of the pigment contained in the pigment-containing particles to fibers and the like is not clear, but is presumed to be as follows. It is presumed that the cleaning article of the present invention is able to create a sense of high cleaning power by packaging (a) a cleaning composition containing a specified amount of dye-containing particles in (c) a water-soluble film containing a water-soluble polymer as a constituent component. Furthermore, by packaging this detergent composition in a water-soluble film containing the water-soluble polymer (c), the dye-containing particles do not come into direct contact with the object to be washed, such as textile products, before mechanical force is applied, and further, the water-soluble polymer (c) dissolves before the dye contained in the component (a), which is presumably preventing the dissolved dye from approaching the object to be washed. Furthermore, the surfactant (b) stably disperses the dye in the wash water, which is presumably preventing the dye contained in the dye-containing particles from transferring to textile products, etc. It is believed that this makes it possible to achieve both a strong feeling of cleaning power and suppression of color transfer of the dye to the object to be cleaned. However, the action mechanism of the cleaning article of the present invention is not limited to the above.

[0009] The cleaning article of the present invention comprises a cleaning composition containing (a) dye-containing particles (hereinafter referred to as component (a)) and (b) a surfactant (hereinafter referred to as component (b)), and a water-soluble film for packaging the cleaning composition. This water-soluble film is a water-soluble film containing, as a constituent component, (c) a water-soluble polymer (hereinafter, also referred to as "component (c)").

[0010] [Cleaning agent composition] First, the cleaning composition of the present invention will be described in detail. The cleaning composition of the present invention contains component (a) and component (b).

[0011] <Component (a)> Component (a) is a pigment-containing particle. Component (a) is, for example, a pigment-containing particle that includes a particle group containing one or more types selected from clay minerals and inorganic salts, and (a1) one or more pigment components selected from dyes and pigments [hereinafter, also referred to as component (a1)]. The particle group includes a particle group containing one or more selected from component (d), component (e), component (f) and component (h), which will be described in detail later. Component (d) is a water-insoluble chelating agent, component (e) is a clay mineral, component (f) is an alkali agent, and component (h) is one or more compounds selected from inorganic sulfates and inorganic halogen compounds. Furthermore, when the particle group contains the component (d), the component (e), the component (f) or the component (h), the content of the component (d), the component (e), the component (f) or the component (h) contained in the particle group, i.e., the content of the component (d), the component (e), the component (f) or the component (h) contained in the pigment-containing particles, is not included in the content of the component (d), the component (e), the component (f) or the component (h) in the detergent composition. The component (a) may be a particle group containing one or more types selected from clay minerals and inorganic salts, and the particle group colored with one or more coloring components selected from dyes and pigments.

[0012] Specifically, the particle group of the component (a) is preferably one or more types selected from sodium sulfate (mirabilite) and bentonite.

[0013] <dye> Examples of the dye of the color component contained in the component (a) include water-soluble dyes. The water-soluble dyes of the component (a) can be selected from those described in, for example, Dye Handbook (edited by the Organic Synthetic Chemistry Association, published on July 20, 1970, Maruzen Co., Ltd.), Dye Note 22nd Edition (Irosensha Co., Ltd.), and Legal Dyes Handbook (edited by the Japan Cosmetic Industry Association, published on November 28, 1988, Yakuji Nippo Co., Ltd.). The component (a) is preferably at least one selected from acid dyes, direct dyes, reactive dyes, and food colorings, more preferably at least one selected from acid dyes and food colorings, and even more preferably at least one selected from acid dyes. The component (a) is preferably one having a hydrophilic group in the molecule, and can include at least one compound selected from water-soluble blue dyes, green dyes, red dyes, purple dyes, and yellow dyes having an amino group or a sulfonyl group, or both an amino group and a sulfonyl group in the molecule. The amino group used here does not mean a cyclic amino group such as a phthalocyanine-based group. Examples of the water-soluble dye of component (a) include the following dyes.

[0014] (Blue dye) C.I. Direct Blue1, C.I. DirectBlue2, C.I. Direct Blue6, C.I. DirectBlue15, C.I. Direct Blue41, C.I. DirectBlue86, C.I. Acid Blue1, C.I. AcidBlue7, C.I. Acid Blue9, C.I. AcidBlue15, C.I. Acid Blue22, C.I. AcidBlue29, C.I. Acid Blue62, C.I. AcidBlue74, C.I. Acid Blue83, C.I. AcidBlue90, C.I. Acid Blue93, C.I. AcidBlue100, C.I. Acid Blue103, C.I. AcidBlue104, C.I. Acid Blue112, C.I. AcidBlue117, C.I. Acid Blue138, C.I. FoodBlue2, C.I. Reactive Blue13, C.I. ReactiveBlue49, C.I. Reactive Blue78, C.I. BasicBlue75, C.I. Basic Blue129.

[0015] (Green series dyes) C.I. Direct green1, C.I. Acidgreen5, C.I. Direct green6, C.I. Directgreen28, C.I. Acid green3, C.I. Acidgreen9, C.I. Acid green16, C.I. Acidgreen20, C.I. Acid green28, C.I. Foodgreen3.

[0016] (Red series dyes) CIDirect Red2, CIDirectRed13, CIDirect Red17, CIDirectRed28, CIDirect Red33, CIDirectRed46, CIDirect Red75, CIDirectRed79, CIAcid Red18, CIAcidRed27, CIAcid Red32, CIAcidRed33, CIAcid Red37, CIAcidRed42, CIAcid Red51, CIAcidRed52, CIAcid Red87, CIAcidRed92, CIAcid Red94, CIAcidRed138.

[0017] (purple dye) CIDirect Violet1, CIAcid Violet11, CIAcid Violet15, CIAcid Violet41, CIAcid Violet49,.

[0018] (yellow dye) CIAcid Yellow3, CIAcidYellow17, CIAcid Yellow23, CIAcidYellow36, CIReactive Yellow2, CIReactiveYellow102, CIReactive Yellow18, CIReactive Yellow85, CIBasic Yellow28, CIBasic Yellow36, CIBasicYellow51, CIBasic Yellow67, CIFood Yellow3.

[0019] The dye component of the component (a) of the present invention is preferably one or more dyes selected from dyes having a triphenylmethane structure, an azo structure, a xanthene structure, a quinoline structure, a phthalocyanine structure, and an anthraquinone structure, and more preferably one or more dyes selected from dyes having a quinoline structure, a phthalocyanine structure, an azo structure, and a xanthene structure.

[0020] Suitable dyes include one or more dyes selected from CI Acid Yellow 3 having a quinoline structure, CI Acid Blue 9, CI Acid Blue 83, CI Acid Blue 90, CI Acid Blue 93, CI Acid Blue 100, CI Acid Blue 103, CI Acid Blue 104, CI Acid green 3, CI Acid green 5, CI Acid green 9, CIFood green 3, CIFood Blue 2 having a triphenylmethane structure, CI Direct Red 33, CI Acid Red 33, CIFood Red 1 having an azo structure, CI Direct Blue 86 having a phthalocyanine structure, and CI Acid Red 52 having a xanthene structure.

[0021] <Pigments> The pigment of the color component contained in component (a) is not particularly limited as long as it is used in cosmetics, etc. For example, any pigment selected from inorganic pigments and organic pigments can be used. Among them, organic pigments are preferred from the viewpoint of storage stability.

[0022] Specific examples of inorganic pigments include one or more selected from chromium oxide, yellow ferric oxide, black iron oxide, red iron oxide, cobalt oxide, ultramarine, chromium hydroxide, and manganese violet. The organic pigment is preferably at least one selected from azo pigments, phthalocyanine pigments, and condensed polycyclic pigments, and more preferably a condensed polycyclic pigment. The azo pigment is preferably at least one selected from the group consisting of azo lake pigments, insoluble azo pigments, and condensed azo pigments. The phthalocyanine pigment is preferably one or more selected from phthalocyanine blue and phthalocyanine green. As the phthalocyanine blue, pigment blue 15:3 is preferable. The condensed polycyclic pigment is preferably one or more selected from anthraquinone, quinacridone, diketopyrrolopyrrole, perylene, perinone, Pigment Violet 23, and indigoid (Red No. 226). These may be used alone or in combination of two or more. Among these, diketopyrrolopyrrole or indigoid is more preferred, and indigoid is even more preferred.

[0023] Examples of the colorant component of component (a) include one or more dyes or pigments having a color selected from purple (wavelength 380 to 430 nm), blue (wavelength 430 to 490 nm), and green (wavelength 490 to 550 nm). However, the colorant component of component (a) is not limited to these dyes or pigments.

[0024] The average primary particle size of component (a) is preferably 10 μm or more, more preferably 50 μm or more, even more preferably 100 μm or more, and preferably 2,000 μm or less, more preferably 1,000 μm or less, even more preferably 500 μm or less. The average primary particle size of component (a) is measured using a low-tap type sieve shaker. Specifically, the average primary particle size of component (a) is determined from the mass fraction based on the size of the sieve mesh after vibrating for 5 minutes using a standard sieve of JIS Z 8801.

[0025] The component (a) contains the (a1) colorant component in an amount of preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and even more preferably 0.2% by mass or more from the viewpoint of cleaning power, and in an amount of preferably 10% by mass or less, more preferably 5% by mass or less, and even more preferably 1% by mass or less from the viewpoint of preventing color transfer.

[0026] <(b) Component> The component (b) is a surfactant. The component (b) is at least one selected from the group consisting of (b1) a nonionic surfactant (hereinafter referred to as the component (b1)), (b2) anionic surfactant (hereinafter referred to as the component (b2)), (b3) cationic surfactant (hereinafter referred to as the component (b3)), and (b4) amphoteric surfactant (hereinafter referred to as the component (b4)). From the viewpoints of cleaning power and pigment dispersibility, the component (b1) and / or the component (b2) are preferred.

[0027] <(b1) component> The component (b1) is a nonionic surfactant. From the viewpoint of cleaning power and pigment dispersibility, the component (b1) can be one or more selected from polyoxyalkylene alkyl or alkenyl ethers, alkyl (poly)glycosides (glycoside-type nonionic surfactants), sorbitan-based nonionic surfactants, compounds in which alkylene oxide is added between the ester bonds of long-chain fatty acid alkyl esters, fatty acid monoglycerides, and sucrose fatty acid esters.

[0028] As the nonionic surfactant of the component (b1), (b1-1) a nonionic surfactant containing an alkyleneoxy group and having an average added mole number of the alkyleneoxy group of 1 or more and 30 or less [hereinafter referred to as component (b1-1)] is preferable. The alkyleneoxy group of the component (b1-1) is preferably one or more groups selected from alkyleneoxy groups having from 2 to 4 carbon atoms, and more preferably one or more groups selected from an ethyleneoxy group and a propyleneoxy group. The average number of moles of alkyleneoxy groups added in the component (b1-1) is, from the viewpoint of cleaning power and pigment dispersibility, 1 or more, preferably 6 or more, more preferably 10 or more, and 30 or less, preferably 25 or less, more preferably 20 or less.

[0029] The component (b1-1) is preferably a nonionic surfactant represented by the following general formula (b1-1). R 1b (CO) m O-(A 1b O) n -R 2b (b1-1) [In the formula, R 1b is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, R 2b is a hydrogen atom or a methyl group. CO is a carbonyl group, and m is the number 0 or 1. A 1b The O group is an alkyleneoxy group containing an ethyleneoxy group and having 2 to 4 carbon atoms. n is the average number of moles added and is a number of 1 to 30.

[0030] In general formula (b1-1), R 1b From the viewpoint of detergency and pigment dispersibility, the number of carbon atoms is 8 or more, preferably 10 or more, more preferably 12 or more, and 18 or less, preferably 16 or less, more preferably 14 or less. R 1b is an aliphatic hydrocarbon group, preferably a group selected from an alkyl group and an alkenyl group.

[0031] In general formula (b1-1), A 1b The O group is an alkyleneoxy group having 2 to 4 carbon atoms and containing an ethyleneoxy group, preferably an alkyleneoxy group having 2 to 3 carbon atoms and containing an ethyleneoxy group, and more preferably an ethyleneoxy group. 1b The O group may be an alkyleneoxy group, including an ethyleneoxy group and another alkyleneoxy group, such as a propyleneoxy group. The other alkyleneoxy group is preferably a propyleneoxy group. 1b When the O group contains an ethyleneoxy group and a propyleneoxy group, the ethyleneoxy group and the propyleneoxy group may be bonded in a block type or a random type.

[0032] In the general formula (b1-1), n ​​is A 1b The average number of moles of O groups added is a number of 1 or more and 30 or less. In general formula (b1-1), n ​​is 1 or more, preferably 6 or more, more preferably 10 or more, and 30 or less, preferably 25 or less, more preferably 20 or less, from the viewpoints of detergency and pigment dispersibility. In general formula (b1-1), m is preferably 0 from the viewpoint of cleaning properties. In general formula (b1-1), R2b From the viewpoint of cleaning properties, is preferably a hydrogen atom.

[0033] Specific examples of nonionic surfactants having no alkyleneoxy group other than the component (b1-1) include one or more selected from sucrose fatty acid esters, glycerin fatty acid esters, sorbitan fatty acid esters, alkyl glycosides, and glyceryl monoethers.

[0034] <(b2) component> The component (b2) is an anionic surfactant. From the viewpoint of cleaning power and pigment dispersibility, the component (b2) is preferably at least one selected from alkylarylsulfonic acid type surfactants, sulfate ester type surfactants, alkanesulfonic acid type surfactants, olefinsulfonic acid type surfactants, sulfosuccinic acid alkyl ester type surfactants, sulfofatty acid ester type surfactants, and fatty acids and their salts, more preferably at least one selected from alkylarylsulfonic acid type surfactants, sulfate ester type surfactants, sulfosuccinic acid alkyl ester type surfactants, and fatty acids and their salts, and even more preferably at least one selected from alkylarylsulfonic acid type surfactants, and fatty acids and their salts. When component (b2) is a salt, examples of the salt include inorganic salts such as sodium salt, potassium salt, ammonium salt, magnesium salt, etc., and organic salts such as monoethanolamine salt, diethanolamine salt, triethanolamine salt, morpholine salt, etc. The salt of component (b2) is preferably an inorganic salt selected from alkali metal salts such as sodium salt, potassium salt, etc. and alkaline earth metal salts such as magnesium salt, etc., more preferably an alkali metal salt, and even more preferably a sodium salt.

[0035] Examples of the component (b2) include one or more compounds selected from the group consisting of compounds represented by the following general formula (b2-1), compounds represented by the general formula (b2-2), compounds represented by the general formula (b2-3), and compounds represented by the general formula (b2-4). R 3b -B-SO3M (b2-1) [In formula (b2-1), R3b represents an alkyl group having 8 to 18 carbon atoms, B represents a benzene ring, and R bonded to the carbon atom of B 3b The carbon atom of is a secondary carbon atom, and M represents a cation. 3b whereas the sulfonic acid group is bonded at the ortho, meta or para position. R 4b -COOM (b2-2) [In formula (b2-2), R 4b represents an alkyl or alkenyl group having 8 to 18 carbon atoms, and M represents a cation. R 5b -O-(AO) n -SO3M (b2-3) [In formula (b2-3), R 5b is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, the AO group is one or more alkyleneoxy groups selected from an ethyleneoxy group and a propyleneoxy group, n is a number of 0 to 20, and M is a cation. R 6b -CH(SO3M)COOR 7b (b2-4) [In formula (b2-4), R 6b represents an alkyl group having 8 to 18 carbon atoms, and R 7b represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, and M represents a cation.

[0036] In general formula (b2-1), R 3b is an alkyl group having 8 or more carbon atoms, preferably 10 or more, more preferably 12 or more, and preferably 18 or less, more preferably 16 or less, and even more preferably 14 or less. In the general formula (b2-1), M is preferably a hydrogen atom, an alkali metal such as sodium or potassium, an alkaline earth metal (1 / 2 atom) such as magnesium or calcium, or an organic ammonium. The organic ammonium salt may be a salt with an amine such as monoethanolamine, diethanolamine, or triethanolamine. M is preferably an alkali metal such as sodium or potassium, or an alkanolammonium such as monoethanolammonium or diethanolammonium, more preferably sodium.

[0037] As the compound represented by general formula (b2-1), p-alkylbenzenesulfonate salts in which the alkyl group has 11 or more and 14 or less carbon atoms are preferable, and sodium p-alkylbenzenesulfonate salts in which the alkyl group has 11 or more and 14 or less carbon atoms are more preferable. That is, the component (b2) is represented by the general formula (b2-1), 3b is an alkyl group having 11 to 14 carbon atoms, and M is sodium.

[0038] In general formula (b2-2), R 4b R is an alkyl or alkenyl group having 8 or more carbon atoms, preferably 10 or more, more preferably 12 or more, and 18 or less, preferably 16 or less, more preferably 14 or less. 4b may be saturated or unsaturated and have a straight or branched chain, and is more preferably saturated and has a straight chain. In the general formula (b2-2), M is preferably a hydrogen atom, an alkali metal such as sodium or potassium, an alkaline earth metal (1 / 2 atom) such as magnesium or calcium, or an organic ammonium. The organic ammonium salt may be a salt with an amine such as monoethanolamine, diethanolamine, or triethanolamine. M is preferably an alkali metal such as sodium or potassium, or an alkanolammonium such as monoethanolammonium or diethanolammonium, more preferably sodium.

[0039] The compound represented by general formula (b2-2) is preferably one or more selected from lauric acid, myristic acid, palmitic acid, isopalmitic acid, stearic acid, isostearic acid, and salts thereof, and more preferably one or more selected from lauric acid, myristic acid, and salts thereof. That is, the component (b2) is represented by the general formula (b2-2), 4b is an alkyl group having 11 to 14 carbon atoms, and M is a cation, and one or more compounds selected from the group consisting of compounds in which M is hydrogen or sodium are more preferred.

[0040] In general formula (b2-3), R 5b is preferably 10 or more, more preferably 11 or more, even more preferably 12 or more, and is an aliphatic hydrocarbon having a value of 18 or less, preferably 16 or less, more preferably 14 or less. 5b is a straight-chain or branched-chain aliphatic hydrocarbon, preferably a straight-chain aliphatic hydrocarbon, more preferably a straight-chain alkyl group.

[0041] In the general formula (b2-3), the AO group is one or more alkyleneoxy groups selected from an ethyleneoxy group and a propyleneoxy group. When the AO group contains an ethyleneoxy group and a propyleneoxy group, the ethyleneoxy group and the propyleneoxy group may be in a block bond or a random bond. From the viewpoint of cleaning power and pigment dispersibility, the AO group is preferably a group containing an ethyleneoxy group.

[0042] In general formula (b2-3), n is the average number of moles of AO groups added and is a number from 0 to 20. From the viewpoints of detergency and pigment dispersibility, n is preferably 1 or more, more preferably 2 or more, and from the viewpoints of detergency and pigment dispersibility, n is 20 or less, preferably 16 or less, more preferably 12 or less, even more preferably 8 or less, and still more preferably 4 or less.

[0043] In general formula (b2-3), when AO contains a propyleneoxy group, the average number of moles of the propyleneoxy group added is preferably 4 or less, more preferably 3 or less, and preferably 0 or more. In general formula (b2-3), the average number of moles of the propyleneoxy group added may be 0. In general formula (b2-3), when AO contains an ethyleneoxy group, the average number of moles of the ethyleneoxy group added is preferably 0.5 or more, more preferably 1 or more, even more preferably 2 or more, and preferably 10 or less, more preferably 5 or less, even more preferably 4 or less.

[0044] In the general formula (b2-3), M is preferably a hydrogen atom, an alkali metal such as sodium or potassium, an alkaline earth metal (1 / 2 atom) such as magnesium or calcium, or an organic ammonium. The organic ammonium may be a salt with an amine such as monoethanolamine, diethanolamine, or triethanolamine. M is preferably an alkali metal such as sodium or potassium, or an alkanolammonium such as monoethanolammonium or diethanolammonium, and more preferably sodium.

[0045] In general formula (b2-4), R 6b is an alkyl group having 8 or more carbon atoms, preferably 10 or more carbon atoms, and 18 or less, preferably 16 or less carbon atoms. In general formula (b2-4), R 7b is preferably an alkyl group having 1 or more carbon atoms and preferably 5 or less, more preferably 4 or less carbon atoms.

[0046] In the general formula (b2-4), M is preferably a hydrogen atom, an alkali metal such as sodium or potassium, an alkaline earth metal (1 / 2 atom) such as magnesium or calcium, or an organic ammonium. The organic ammonium may be a salt with an amine such as monoethanolamine, diethanolamine, or triethanolamine. M is preferably an alkali metal such as sodium or potassium, or an alkanolammonium such as monoethanolammonium or diethanolammonium, and more preferably sodium.

[0047] The compound represented by general formula (b2-4) includes, in general formula (b2-4), R 6b Alkyl groups with 11 to 14 carbon atoms, R 7b is a methyl group.

[0048] <Component (b3)> Examples of the cationic surfactant of component (b3) include alkyltrimethylammonium salts in which the alkyl group has 8 to 22 carbon atoms, dialkyldimethylammonium salts in which the alkyl group has 8 to 22 carbon atoms, alkyldimethylbenzylammonium salts in which the alkyl group has 8 to 22 carbon atoms, and benzethonium salts. Examples of the salts include halogen salts and alkyl sulfates in which the carbon number is 1 to 3. These cationic surfactants can be used alone or in combination of two or more kinds.

[0049] <(b4) component> Examples of the amphoteric surfactant of the component (b4) include N-alkanoylaminopropyl-N,N-dimethylamine oxide, N-alkyl-N,N-dimethylamine oxide, N-alkanoylaminopropyl-N,N-dimethyl-N-carboxymethylammonium betaine, N-alkyl-N,N-dimethyl-N-carboxymethylammonium betaine, N-alkyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, N-alkyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine, N-alkanoylaminopropyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, and N-alkanoylaminopropyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine. In these, the alkanoyl group is, for example, lauroyl or myristyl. In addition, in these, the alkyl group is, for example, a lauryl group or a myristyl group.

[0050] <Composition, etc.> The detergent composition of the present invention contains component (a) in an amount of 2% by mass or more, preferably 3% by mass or more, and more preferably 5% by mass or more from the viewpoint of cleaning power, and in an amount of 15% by mass or less, preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 6% by mass or less from the viewpoint of preventing color transfer to clothing.

[0051] The cleaning agent composition of the present invention contains component (b) in an amount of preferably 1% by mass or more, more preferably 5% by mass or more, and even more preferably 10% by mass or more from the viewpoint of suppressing color transfer to clothing, and in an amount of preferably 50% by mass or less, more preferably 30% by mass or less, and even more preferably 20% by mass or less from the viewpoint of storage stability. In addition, when component (b) is an anionic surfactant, the mass of the anionic surfactant in component (b) is to be calculated as the value converted into the sodium salt.

[0052] In the detergent composition of the present invention, the mass ratio (a) / (b) of the content of the component (a) to the content of the component (b) is preferably 0.01 or more, preferably 0.1 or more, more preferably 0.3 or more, from the viewpoint of the feeling of detergency, and is preferably 10 or less, more preferably 5 or less, even more preferably 2 or less, and still more preferably 1 or less, from the viewpoint of color transfer to clothes.

[0053] <(d) component> The detergent composition of the present invention may optionally contain (d) a water-insoluble chelating agent (hereinafter referred to as component (d)). The type of component (d) is not particularly limited, but from the viewpoint of retaining fragrances and the like, it is preferable that the component has an oil absorption capacity of 120 mL / 100 g or more. The upper limit is not particularly limited. From the viewpoint of cleaning power and storage stability, it is preferable that component (d) is one or more selected from crystalline aluminosilicates and amorphous aluminosilicates. The oil absorption capacity of the component (d) can be measured in accordance with JIS K 5101-13-2. Regarding component (d), "water-insoluble" means that no more than 0.1 g of the component dissolves in 100 g of water at 20°C.

[0054] The average primary particle size of component (d) is preferably 0.1 μm or more, more preferably 1 μm or more, and preferably 1000 μm or less, more preferably 500 μm or less, and even more preferably 100 μm or less. The average primary particle size of component (d) is measured by a laser diffraction / scattering type particle distribution measuring device. This average primary particle size is the D50 (median size) of the cumulative particle size distribution based on volume.

[0055] Specific examples of component (d) include amorphous aluminosilicates (oil absorption capacity: 285 mL / 100 g) described in JP-A-9-132794, JP-A-7-10526, JP-A-6-227811, JP-A-8-119622, etc. More specifically, as the amorphous aluminosilicate of component (d), TIXOREX25 (manufactured by Hanfu Chemical Co., Ltd., 220 to 270 mL / 100 g) or the like can be used.

[0056] In addition, the crystalline aluminosilicate may be zeolite. Specific examples of zeolites include crystalline aluminosilicates such as A-type, X-type, and P-type zeolites. A-type zeolite (e.g., trade name "Toyobuilder" manufactured by Tosoh Corporation, oil absorption capacity according to JIS K 5101 method: 40 mL / 100 g or more) is preferable as the crystalline aluminosilicate. Other suitable examples include P-type (e.g., trade names "Doucil A24", "ZSEO64", etc.; both manufactured by Crosfield; oil absorption capacity 60 to 150 mL / 100 g), X-type (e.g., trade name "WessalithXD" manufactured by Degussa; oil absorption capacity 80 to 100 mL / 100 g), and hybrid zeolites described in International Publication No. 98 / 42622.

[0057] When the cleaning composition of the present invention contains the component (d), from the viewpoint of storage stability, the cleaning composition of the present invention contains the component (d) in an amount of preferably 1 mass % or more, more preferably 5 mass % or more, even more preferably 10 mass % or more, and preferably 50 mass % or less, more preferably 30 mass % or less, and even more preferably 20 mass % or less.

[0058] <(e) component> The detergent composition of the present invention may optionally contain (e) a clay mineral (hereinafter referred to as component (e)).

[0059] An example of the component (e) is bentonite. The bentonite preferably has an ion exchange capacity of 50 to 100 meq / 100 g. The bentonite may be at least one selected from the group consisting of alkali metal or alkaline earth metal montmorillonite, smectitic clays selected from the group consisting of saponite or hectorite, illite, attapulgite, and kaolinite. Powdered or granulated bentonite may be used. For example, reference may be made to the granulated clay mineral in JP 2008-189719 A.

[0060] The average primary particle size of component (e) is preferably 0.1 μm or more, more preferably 1 μm or more, even more preferably 10 μm or more, and preferably 1000 μm or less, more preferably 500 μm or less, even more preferably 100 μm or less. The average primary particle size of component (d) is measured by a laser diffraction / scattering type particle distribution measuring device. This average primary particle size is the D50 (median size) of the cumulative particle size distribution based on volume.

[0061] When the cleaning composition of the present invention contains the component (e), the cleaning composition of the present invention contains the component (e) in an amount of preferably 0.1% by mass or more, more preferably 1% by mass or more, and even more preferably 3% by mass or more from the viewpoint of detergency and softening effect, and preferably 20% by mass or less, more preferably 10% by mass or less, and even more preferably 5% by mass or less from the viewpoint of suppressing undissolved residue.

[0062] <Component (f)> The cleaning composition of the present invention may optionally contain (f) an alkaline agent (hereinafter referred to as component (f)). Component (f) may be one or more alkaline agents selected from alkali metal carbonates, alkali metal hydrogencarbonates, alkali metal silicates, and tripolyphosphates. Examples of the alkali metal carbonate include sodium carbonate and potassium carbonate, with sodium carbonate being preferred. Examples of the alkali metal hydrogen carbonate include sodium hydrogen carbonate and potassium hydrogen carbonate. The alkali metal silicate includes sodium silicate and potassium silicate. Tripolyphosphates include alkali metal salts of tripolyphosphate.

[0063] From the viewpoint of storage stability, the component (f) is preferably one or more alkaline agents selected from alkali metal carbonates and alkali metal hydrogen carbonates, more preferably one or more alkaline agents selected from alkali metal carbonates, even more preferably one or more alkaline agents selected from sodium carbonate and potassium carbonate, and even more preferably sodium carbonate.

[0064] When the cleaning composition of the present invention contains the component (f), the cleaning composition of the present invention contains the component (f) in an amount of preferably 1 mass % or more, more preferably 10 mass % or more, and even more preferably 20 mass % or more from the viewpoint of detergency, and preferably 50 mass % or less, more preferably 40 mass % or less, and even more preferably 30 mass % or less from the viewpoint of solubility.

[0065] <(g) component> The detergent composition of the present invention may optionally contain one or more enzymes selected from proteases, lipases and amylases (hereinafter referred to as component (g)). Proteases include, for example, serine proteases (EC 3.4.21) and metalloproteases (EC 3.4.17 or EC 3.4.24). Examples of suitable proteases include neutral or alkaline serine proteases such as subtilisin (EC 3.4.21.62). Examples of lipases include triacylglycerol lipase (EC 3.1.1.3), phospholipase A2 (EC 3.1.1.4), lysophospholipase (EC 3.1.1.5), monoglyceride lipase (EC 3.1.1.23), galactolipase (EC 3.1.1.26), phospholipase A1 (EC 3.1.1.32), and lipoprotein lipase (EC 3.1.1.34). Examples of amylases include α-amylase (EC 3.2.1.1), β-amylase (EC 3.2.1.2) and / or glucoamylase (EC 3.2.1.3), etc. Suitable examples of amylases include neutral or alkaline α-amylases, preferably of microbial origin, such as bacteria or fungi.

[0066] When the cleaning composition of the present invention contains the component (g), from the viewpoints of detergency and safety, the cleaning composition of the present invention contains the component (g) in an amount of preferably 0.01 mass % or more, more preferably 0.1 mass % or more, even more preferably 0.5 mass % or more, and preferably 30 mass % or less, more preferably 10 mass % or less, even more preferably 5 mass % or less, and still more preferably 1 mass % or less.

[0067] <(h) component> The cleaning composition of the present invention may optionally contain, as component (h), one or more compounds selected from inorganic sulfates and inorganic halogen compounds. Examples of component (h) include compounds selected from sodium sulfate, magnesium sulfate, sodium chloride, and magnesium chloride. Component (h) may be either a hydrate or an anhydride.

[0068] When the cleaning composition of the present invention contains the component (h), from the viewpoint of detergency, the cleaning composition of the present invention contains the component (h) in an amount of preferably 2 mass % or more, more preferably 5 mass % or more, even more preferably 10 mass % or more, still more preferably 15 mass % or more, and preferably 60 mass % or less, more preferably 50 mass % or less, and even more preferably 40 mass % or less.

[0069] <Component (i)> The cleaning composition of the present invention may optionally contain, as component (i), a polymer having a carboxylic acid group or a salt thereof and having a weight average molecular weight of 3,000 or more. The component (i) may be a polymer selected from polyacrylic acid or a salt thereof, and a copolymer of acrylic acid and maleic acid or a salt thereof (hereinafter referred to as component (i1)). Examples of polyacrylic acid or a salt thereof include polyacrylic acid, sodium polyacrylate, potassium polyacrylate, etc., and preferably sodium polyacrylate and potassium polyacrylate. Examples of the copolymer of acrylic acid and maleic acid or its salt include a copolymer of acrylic acid and maleic acid, a sodium salt of a copolymer of acrylic acid and maleic acid, a potassium salt of a copolymer of acrylic acid and maleic acid, etc., and preferably a sodium salt of a copolymer of acrylic acid and maleic acid, or a potassium salt of a copolymer of acrylic acid and maleic acid. The molar ratio of the copolymer of acrylic acid and maleic acid, in terms of the number of moles of acrylic acid / the number of moles of maleic acid, is preferably 1 / 99 or more, more preferably 10 / 90 or more, and is preferably 99 / 1 or less, more preferably 90 / 10 or less.

[0070] The component (i1) may be a copolymer containing a monomer other than acrylic acid and maleic acid that is copolymerizable with acrylic acid and / or maleic acid, so long as it does not interfere with the development of the effects of the present invention. Examples of the monomer other than acrylic acid and maleic acid that is copolymerizable with acrylic acid and / or maleic acid include vinyl monomers, acrylic monomers, styrene monomers, etc., and more specifically, examples of the monomer include methacrylic acid, methyl acrylate, ethyl acrylate, methyl methacrylate, styrene, etc. The molar ratio of the monomer other than acrylic acid and maleic acid that is copolymerizable with acrylic acid and / or maleic acid in the component (i1) is preferably 0 mol% or more, and preferably 5 mol% or less, more preferably 3 mol% or less, and even more preferably 0 mol%. Therefore, the polyacrylic acid or a salt thereof, and the copolymer of acrylic acid and maleic acid or a salt thereof of the present invention may be a polymer or copolymer containing, among all the constituent monomers, monomers other than acrylic acid and maleic acid that are copolymerizable with acrylic acid and / or maleic acid in an amount in the range of 0 mol % or more and 5 mol % or less.

[0071] The weight average molecular weight of component (i) is 3,000 or more, preferably 3,500 or more, more preferably 4,000 or more, even more preferably 5,000 or more, even more preferably 6,000 or more, even more preferably 7,000 or more, even more preferably 8,000 or more, even more preferably 9,000 or more, even more preferably 10,000 or more, and preferably 100,000 or less, more preferably 50,000 or less. The weight average molecular weight can be measured according to the following method for measuring weight average molecular weight. <Method for measuring weight average molecular weight> The weight average molecular weight of the component (i) can be measured by GPC (gel permeation chromatography) and the weight average molecular weight (Mw) can be calculated using a conversion standard substance. The GPC measurement conditions are as follows. Column: Tosoh Corporation, product name: TSK-GEL guard PWXL Manufactured by Tosoh Corporation, product name: TSK-GEL G4000 PWXL Manufactured by Tosoh Corporation, product name: TSK-GEL G2500 PWXL Mobile phase: 0.1 mol / L potassium dihydrogen phosphate and 0.1 mol / L sodium dihydrogen phosphate aqueous solution / acetonitrile = 90 / 10 (volume ratio) Detector: Refractive index detector Column temperature: 40℃ ·Flow rate: 1.0mL / min Conversion standard material: Polyacrylic acid (American Standard Corporation) Sample: Add ion-exchanged water to an aqueous polymer solution containing 0.8 g of solids to make the total volume 200 mL, and then take 10 μL of this solution and inject it into the column.

[0072] When the cleaning composition of the present invention contains component (i), the cleaning composition of the present invention contains component (i) in an amount of preferably 0.1 mass % or more, more preferably 1 mass % or more, even more preferably 3 mass % or more, and preferably 20 mass % or less, more preferably 15 mass % or less, and even more preferably 10 mass % or less, from the viewpoints of cleaning performance and stability.

[0073] <(j) component> The cleaning composition of the present invention may optionally contain, as the component (j), a polyalkylene glycol having a weight average molecular weight of 100 or more and 100,000 or less. The component (j) may be one or more selected from polyethylene glycol and polypropylene glycol. The weight average molecular weight of component (j) is 100 or more, preferably 1,000 or more, and 100,000 or less, preferably 10,000 or less, and more preferably 2,000 or less. The weight average molecular weight herein is a value determined by gel permeation chromatography using polystyrene as a standard substance.

[0074] When the cleaning composition of the present invention contains the component (j), from the viewpoint of stability, the cleaning composition of the present invention contains the component (j) in an amount of preferably 0.001 mass% or more, more preferably 0.01 mass% or more, even more preferably 0.1 mass% or more, still more preferably 0.5 mass% or more, and preferably 30 mass% or less, more preferably 10 mass% or less, and even more preferably 2 mass% or less.

[0075] The detergent composition of the present invention may optionally contain other components known in the field of laundry detergents, such as bleaching agents (perborates, bleach activators, etc.), anti-redeposition agents, reducing agents (sulfites, etc.), fluorescent brightening agents, foam suppressors (silicones, etc.), organic solvents, fragrances, antibacterial agents, etc. (excluding those corresponding to components (a) to (j)).

[0076] The detergent composition of the present invention may be a solid detergent composition. The detergent composition of the present invention may be in a powder, granular or granular form. From the viewpoint of solubility, the detergent composition of the present invention is preferably one or more detergent compositions selected from a powder, granular and granular form. The detergent composition of the present invention may be a powder detergent composition.

[0077] The detergent composition of the present invention can be produced by a known method, for example, a spray drying method, a dry neutralization method, a dry granulation method, a dry blending method, a fluidized bed drying method, a thin film drying method, an extrusion granulation method, a tumbling granulation method, agitation granulation method, a compaction granulation method, a surfactant supporting method, or a combination of methods selected from these.

[0078] The bulk density of the detergent composition of the present invention varies depending on the production method, but is preferably 0.2 g / cm 3 More preferably, 0.3 g / cm 3 More preferably, 0.35 g / cm 3 More than 1 g / cm 3 Less than or equal to 0.95 g / cm 3 More preferably, 0.9 g / cm 3 The following is the result.

[0079] When the cleaning composition of the present invention is a powder cleaning composition, the average particle size of the cleaning composition of the present invention is preferably 100 μm or more, more preferably 150 μm or more, even more preferably 200 μm or more, and preferably 1000 μm or less, more preferably 700 μm or less, even more preferably 500 μm or less. The average particle size is measured using a low tap type sieve shaker. Specifically, the average particle size is determined from the mass fraction based on the size of the sieve openings after vibrating the sample for 5 minutes using a standard sieve of JIS Z 8801.

[0080] <Method of producing the cleaning composition> The cleaning composition of the present invention can be produced by mixing component (a), component (b), and other optional components. The amounts of components (a) to (j) and other optional components in the cleaning composition of the present invention can be applied by replacing the preferred contents in the cleaning composition of the present invention with the blending amounts.

[0081] <Cleaning products> The cleaning article of the present invention comprises the cleaning composition of the present invention and a water-soluble film that contains a water-soluble polymer (c) [hereinafter referred to as component (c)] as a constituent component and packages the cleaning composition. The cleaning article of the present invention may be a cleaning article comprising the cleaning composition of the present invention packaged in a water-soluble film containing the component (c) as a constituent.

[0082] In the present invention, the term "water-soluble" in relation to a water-soluble film and a water-soluble polymer means that, after placing 500 g of 30°C ion-exchanged water in a 1-liter glass beaker, placing a Teflon (registered trademark) stirrer with a diameter of 8 cm, adding 1 g of the film to be evaluated, and stirring at 100 rpm for 30 minutes, no insoluble matter is apparent.

[0083] <Water-soluble film> The water-soluble film is a water-soluble film containing component (c) as a constituent. The water-soluble film can be obtained by a method known in the art, such as casting, blow molding, extrusion, injection molding, etc. of a polymer. In addition, from the viewpoints of preventing accidental ingestion and solubility, the thickness of the water-soluble film is preferably 1 μm or more, more preferably 10 μm or more, even more preferably 50 μm or more, and preferably 300 μm or less, more preferably 200 μm or less, even more preferably 150 μm or less, and even more preferably 100 μm or less.

[0084] <(c) component> The component (c) is a water-soluble polymer. The component (c) may be polyvinyl alcohol (PVA), vinyl alcohol copolymers, polyvinylpyrrolidone, polyalkylene oxides, (modified) cellulose, (modified) cellulose-ethers or -esters or -amides, polycarboxylic acids and their salts such as polyacrylates, maleic acid / acrylic acid copolymers, polyamino acids or peptides, polyamides such as polyacrylamides, polysaccharides such as starch and gelatin, and natural gums such as xanthan and carragum. The vinyl alcohol copolymers are copolymers of vinyl alcohol and other monomers such as ethylene and acrylic acid. The component (c) is preferably a polymer selected from the group consisting of polyacrylates and water-soluble acrylates, methylcellulose, sodium carboxymethylcellulose, dextrin, ethylcellulose, hydroxyethylcellulose, maltodextrin, polymethacrylates, polyvinyl alcohol, vinyl alcohol copolymers, hydroxypropylmethylcellulose (HPMC), and combinations thereof. The component (c) is more preferably a polymer selected from polyvinyl alcohol, vinyl alcohol copolymers, and hydroxypropylmethylcellulose. The component (c) is further preferably polyvinyl alcohol, for example, Solvron available from Aicello Co., Ltd. Suitable polymers for producing water-soluble films are described, for example, in U.S. Pat. No. 6,995,126.

[0085] In the detergent article of the present invention, the total area of ​​the water-soluble film that comes into contact with the detergent composition of the present invention is preferably 2 cm2 or less from the viewpoint of further improving the product stability. 2 More than 5cm, preferably 5cm 2 More than 7cm, more preferably 2 More preferably, 15 cm 2 From the same viewpoint, preferably 100 cm 2 Less than or equal to 70cm, preferably 2 Less than 60cm, more preferably 2 Less than 45cm, more preferably 45cm 2 The following is the result.

[0086] In the detergent article of the present invention, the mass ratio (a) / water-soluble film of the mass of component (a) contained in the detergent composition packaged in the water-soluble film to the mass of the water-soluble film containing component (c) as a constituent component is, from the viewpoint of the feeling of detergency, 0.1 or more, preferably 0.2 or more, and more preferably 0.6 or more, and from the viewpoint of suppressing color transfer to clothing, is 10 or less, preferably 5 or less, more preferably 2 or less, even more preferably 1 or less, and still more preferably 0.8 or less.

[0087] In the detergent article of the present invention, the mass ratio (a1) / water-soluble film of the content of the colorant component (a1) contained in the detergent composition packaged in the water-soluble film to the mass of the water-soluble film containing the component (c) as a constituent is preferably 0.0001 or more, more preferably 0.001 or more, and even more preferably 0.002 or more, from the viewpoint of the feeling of cleaning power, and is preferably 0.1 or less, more preferably 0.05 or less, and even more preferably 0.01 or less, from the viewpoint of color transfer to clothing.

[0088] The cleaning article of the present invention can be made by any suitable process known in the art, such as known detergent pouch making processes. Exemplary pouch making processes are described in U.S. Patent Nos. 6,995,126, 7,127,874, 8,156,713, 7,386,971, 7,439,215, and U.S. Patent Application Publication No. 2009 / 199877.

[0089] The amount of contents per cleaning article of the present invention is preferably 5 g or more, more preferably 8 g or more, even more preferably 10 g or more, and preferably 50 g or less, more preferably 30 g or less, even more preferably 25 g or less.

[0090] The preferred shape and size of each of the cleaning articles of the present invention is, for example, a quadrilateral, with the length of one side being preferably 1 cm or more and 5 cm or less, and the thickness being preferably 1 cm or more and 5 cm or less, more preferably 1 cm or more and 4 cm or less. The weight of each of the cleaning articles of the present invention is preferably 5 g or more, more preferably 10 g or more, even more preferably 15 g or more, and preferably 50 g or less, more preferably 40 g or less, even more preferably 30 g or less.

[0091] Another preferred shape and size of each of the detergent articles of the present invention is, for example, a rectangular parallelepiped shape, with a vertical length of preferably 5 cm to 20 cm, a horizontal length of preferably 1 cm to 4 cm, and a thickness of preferably 1 cm to 5 cm, more preferably 1 cm to 4 cm. The mass of each of the detergent articles of the present invention is preferably 5 g or more, more preferably 10 g or more, and preferably 50 g or less, more preferably 40 g or less, even more preferably 30 g or less, and even more preferably 20 g or less.

[0092] From the viewpoint of preventing color transfer, it is preferable that the water does not contain the component (a) after 30 seconds from immersing the cleaning article in water at 20° C. This water is ion-exchanged water. It is preferable that the water does not contain the component (a) after immersing the cleaning article in water at 20° C. for 30 seconds from the viewpoint of preventing color transfer. By configuring the thickness of the water-soluble film used in the cleaning article of the present invention and the water-soluble polymer of component (c) in the preferred embodiments described above, it is possible to adjust the thickness so that component (a) does not dissolve in water 30 seconds after the cleaning article is immersed in water.

[0093] The detergent article of the present invention can be suitably used for textile products, for hard surfaces such as tableware, and for automatic dishwashers, and is preferably used for textile products.

[0094] When a textile product is cleaned with the cleaning agent article of the present invention, the fiber to be cleaned may be either hydrophobic or hydrophilic. Examples of hydrophobic fibers include protein fibers (milk protein casein fiber, promix, etc.), polyamide fibers (nylon, etc.), polyester fibers (polyester, etc.), polyacrylonitrile fibers (acrylic, etc.), polyvinyl alcohol fibers (vinylon, etc.), polyvinyl chloride fibers (polyvinyl chloride, etc.), polyvinylidene chloride fibers (vinylidene, etc.), polyolefin fibers (polyethylene, polypropylene, etc.), polyurethane fibers (polyurethane, etc.), polyvinyl chloride / polyvinyl alcohol copolymer fibers (polycral, etc.), polyalkylene paraoxybenzoate fibers (benzoate, etc.), polyfluoroethylene fibers (polytetrafluoroethylene, etc.), glass fibers, carbon fibers, alumina fibers, silicone carbide fibers, rock fibers (rock fibers), slag fibers (slag fibers), and metal fibers (gold thread, silver thread, steel fiber). Examples of hydrophilic fibers include seed hair fibers (cotton, kapok, etc.), bast fibers (hemp, flax, ramie, hemp, jute, etc.), leaf vein fibers (Manila hemp, sisal, etc.), palm fibers, rush, straw, animal hair fibers (wool, mohair, cashmere, camel hair, alpaca, vicuna, angora, etc.), silk fibers (domestic silk, wild silk), feathers, and cellulosic fibers (rayon, polynosic, cupra, acetate, etc.). From the viewpoint of finishing quality, the fiber is preferably a fiber containing cotton fiber. From the viewpoint of finishing quality of the fiber, the content of cotton fiber in the fiber is preferably 5% by mass or more, more preferably 10% by mass or more, even more preferably 15% by mass or more, still more preferably 20% by mass or more, still more preferably 40% by mass or more, still more preferably 60% by mass or more, still more preferably 80% by mass or more, and preferably 100% by mass or less, and may be 100% by mass.

[0095] In the present invention, the textile product refers to fabrics such as woven fabrics, knitted fabrics, and nonwoven fabrics using the hydrophobic fibers or hydrophilic fibers, and products obtained using the same, such as undershirts, T-shirts, dress shirts, blouses, slacks, hats, handkerchiefs, towels, knitwear, socks, underwear, and tights.

[0096] <How to wash textile products> The present invention provides a method for cleaning textile products, which comprises cleaning the textile products with a cleaning liquid (hereinafter referred to as the cleaning liquid of the present invention) comprising a mixture of the cleaning agent article of the present invention and water. In the method for cleaning textile products of the present invention, the embodiments described in the detergent article of the present invention and the detergent composition of the present invention can be applied. In the method for washing textile products of the present invention, the cleaning agent article of the present invention and water may first be charged into a washing tank and mixed to prepare the cleaning solution of the present invention, and then the textile product to be washed is charged and the textile product is washed. However, from the viewpoint of enjoying the effects of the present invention, a method is preferred in which the cleaning agent article of the present invention, water, and the textile product are charged into a washing tank, and the cleaning solution of the present invention is prepared while the cleaning agent article of the present invention is dissolved in the water, and the textile product is washed at the same time.

[0097] In the cleaning solution of the present invention, the amount of water when mixing the cleaning article of the present invention with water is prepared so that the total amount of the cleaning composition of the present invention contained in the cleaning article of the present invention is preferably 0.01 g or more, more preferably 0.1 g or more, even more preferably 0.3 g or more, and preferably 10 g or less, more preferably 1 g or less, and even more preferably 0.5 g or less, per 1 L of water, from the viewpoints of environmental consideration and cleaning performance.

[0098] The method for washing textile products of the present invention is suitable for a method of immersing textile products in a liquid used for scouring while feeding the textile products with rollers or the like, and a rotary washing method. The rotary washing method means a washing method in which a textile product not fixed to a rotating device rotates around a rotating shaft together with the washing liquid. The rotary washing method can be carried out by a rotary washing machine. Therefore, in the present invention, it is preferable to wash textile products using a rotary washing machine in order to finish the textile products more neatly. Specific examples of the rotary washing machine include drum washing machines, pulsator washing machines, and agitator washing machines. These rotary washing machines can be commercially available for home use. EXAMPLES

[0099] <Composition ingredients> In the examples and comparative examples, the following components were used. [Component (a)] Pigment-containing particles: Blue Glauber's salt (A), pigment content 0.3% by mass (pigment: Pigment Blue 15:3), Glauber's salt 95%, sodium silicate 2.5%, sodium carboxymethylcellulose 0.6%, water 1.6%, manufactured by Anhui Liaoyuan (China), Anhui Liaoyuan Trading Co., Ltd. [(b) component] (b1) Component Nonionic surfactant: Polyoxyethylene alkyl ether (alkyl group carbon number 12, average number of oxyethylene added moles 10), Emulgen 110L, Kao Corporation (b2) Component LAS-Na: Sodium laurylbenzenesulfonate, Neopelex G-65, manufactured by Kao Corporation AS: Sodium lauryl sulfate, Emal 10G, manufactured by Kao Corporation AES: Sodium polyoxyethylene lauryl ether sulfate, Emal 270J, manufactured by Kao Corporation [(c) component] Water-soluble polymer: Polyvinyl alcohol, water-soluble film consisting of polyvinyl alcohol (13 cm long, 2 cm wide, M8685, 76 μm, manufactured by Monosol Co., Ltd.) cut with scissors to 5 mm or less and powdered [(d) component] Zeolite: Synthetic zeolite, A-4, powder, 75μm (200mesh), Fujifilm Wako Pure Chemical Industries, Ltd. [(e) component] Bentonite: Bulk density 1100g / L, Kurosaki Shirato Co., Ltd. [Component (f)] Sodium carbonate, Fujifilm Wako Pure Chemical Industries, Ltd. [(g) Component] Enzymes: Protease, Savinase 18T, Novozymes A / S [(h) component] Sodium sulfate: Fujifilm Wako Pure Chemical Industries, Ltd. [Component (i)] Polyacrylic acid: sodium polyacrylate, trade name Poise 536, weight average molecular weight 10,000, manufactured by Kao Corporation [(j) component] Polyethylene glycol: weight average molecular weight 6,000, Fujifilm Wako Pure Chemical Industries, Ltd. Fragrance: Kao Corporation

[0100] <Preparation of cleaning composition> Component (b) and component (f) were mixed in the formulation ratio shown in Table 1, and component (b) was allowed to be adsorbed by component (f). Then, component (a), and optionally components (c), (d), (e), (g), (h), (i), (j) and a fragrance were added in the formulation ratio shown in Table 1 and stirred to prepare each of the powdered detergent compositions shown in Examples 1-1 to 1-13 and Comparative Examples 1-1 to 1-5.

[0101] <Preparation of cleaning agent article> Two sheets of water-soluble film (length 13 cm, width 2 cm, M8685, thickness 51 μm or 76 μm, manufactured by Monosol Corp.) containing polyvinyl alcohol as a constituent component and having a thickness as shown in Table 1 were stacked and sealed at three sides using a heat sealer (manufactured by Fuji Impulse Corp.) to prepare a bag with only one side open, and 13 g of each of the cleaning compositions as shown in Table 1 was placed in this bag. The water-soluble film having a thickness of 152 μm in Example 1-4 was obtained by applying a thin layer of water to one side of each of the two sheets of the water-soluble film having a thickness of 76 μm, stacking them, and adhering them together. Thereafter, the open side of the bag was heat sealed to obtain a cleaning article in which each cleaning composition was packaged in a water-soluble film. The total area of ​​the water-soluble film in contact with the cleaning composition was 30 cm. 2 The cleaning article of the present invention is not limited to the above-mentioned production method.

[0102] [Evaluation of color transfer] The color transfer of the cleaning agent articles in Table 1 was evaluated based on the color change after washing a white cloth. 1 kg of a cotton shirt (100% cotton, Gunze) was washed in a fully automatic washing machine (NA-FR80H6, Panasonic) with 20 L of water for 3 minutes and one rinse with city water (20°C). Two of the detergent articles prepared by the above method and shown in Table 1 were placed on the clothes and washed. In Comparative Examples 1-2 and 1-4, which did not have packaging with a water-soluble polymer, 26 g of the detergent composition was placed on the clothes. The water temperature of each washing solution was 20°C. After washing, the cotton shirts were dried in a dryer (OT-20S, manufactured by Tosen Corporation). The reflectance of the cotton shirt at a wavelength of 460 nm before and after washing was measured using a spectrophotometer (SE2000, manufactured by Nippon Denshoku Co., Ltd.), and the degree of color transfer was calculated based on the difference in reflectance before and after washing using formula (1), and the color transfer of the detergent article was evaluated. The color-transferred part of the cotton shirt is the part of the cotton shirt that is most darkly colored. The lower this value, the less color transfer the detergent article will have to the washed object. Degree of color transfer = (reflectance of cotton shirt before washing - reflectance of color-transferred part of cotton shirt after washing) / reflectance of cotton shirt before washing (1)

[0103] [Evaluation of cleaning power] Ten evaluators visually observed the appearance of the detergent articles in Table 1 and evaluated the cleaning power of the detergent articles based on the following evaluation criteria. The cleaning power was evaluated based on the detergent articles of Comparative Examples 1-5. Table 1 shows the average scores of the 10 evaluators. The higher the score, the better the cleaning power of the detergent article. The cleaning power is the impression that a detergent article has excellent cleaning power when visually observed. Evaluation criteria 5: The cleaning performance seems very high 4: The cleaning performance seems to be high 3: Neither 2: The cleaning performance seems a little low 1: The cleaning performance seems very poor

[0104] [Table 1]

Claims

1. A cleaning composition comprising (a) pigment-containing particles (hereinafter referred to as component (a)) and (b) a surfactant (hereinafter referred to as component (b)), and a water-soluble film for packaging the cleaning composition, the film comprising (c) a water-soluble polymer (hereinafter referred to as component (c)), The cleaning composition contains 2% by mass or more and 15% by mass or less of component (a), a mass ratio (a) / water-soluble film of the mass of the component (a) contained in the detergent composition packaged in the water-soluble film to the mass of the water-soluble film containing the component (c) as a constituent component, wherein (a) / water-soluble film is 0.1 or more and 10 or less.

2. The detergent article according to claim 1 , wherein the detergent composition contains 3% by mass or more and 8% by mass or less of component (a).

3. 3. The detergent article according to claim 1, wherein in the detergent composition, a mass ratio (a) / (b) of the content of the component (a) to the content of the component (b) is 0.01 or more and 10 or less.

4. The cleaning article according to claim 1 or 2, wherein, after immersion of the cleaning article in water at 20°C, the water does not contain component (a) 30 seconds later.

5. 3. The detergent article according to claim 1, wherein the component (a) comprises a particle group containing one or more types selected from clay minerals and inorganic salts, and one or more coloring components selected from dyes and pigments.

6. The detergent article according to claim 1 or 2, wherein the water-soluble film has a thickness of 10 μm or more and 300 μm or less.

7. The cleaning article according to claim 1 or 2, wherein component (c) is polyvinyl alcohol.

8. The cleaning article according to claim 1 or 2, wherein the cleaning composition is in the form of a powder, particles, or granules.

9. The cleaning article according to claim 1 or 2, which is for textile products.