Liquid cleaning agent composition for fiber products

Abstract

A liquid detergent composition for fiber products, which contains a carbonate component (A), a sulfate component (B), and a surfactant component (C) (excluding soap), the content of the component (A) being 0.3-1 mass% and the content of the component (B) being 1-10 mass% with respect to the total mass of the liquid detergent composition, and the pH of the liquid detergent composition being 8.5 or more.

Description

Technical Field

[0001] The present invention relates to liquid cleaning compositions for fiber products.

[0002] This application claims priority based on Japanese Patent Application No. 2022-202122 filed in Japan on December 19, 2022, and the contents are incorporated herein. Background Art

[0003] As an effort towards a sustainable society, it is required to reduce the content of surfactants composed of petroleum-derived raw materials in liquid detergent compositions for fiber products (hereinafter sometimes referred to as "liquid detergent compositions"). Reducing the content of surfactants is also useful for reducing the amount of water used in washing.

[0004] However, if only the content of the surfactant is reduced, the cleaning power is impaired. In addition, if only the content of the surfactant is reduced, the viscosity of the liquid cleaning agent composition decreases. When the viscosity of the liquid cleaning agent composition decreases, the fluidity is significantly improved, and the operation during measurement becomes complicated.

[0005] To address such a problem, a liquid detergent composition containing a specific surfactant and a water-soluble inorganic salt is proposed in Patent Document 1. According to the invention described in Patent Document 1, an increase in viscosity is achieved.

[0006] Patent Document 2 proposes a liquid detergent composition containing a specific surfactant and a specific inorganic salt or organic acid salt in specific amounts. According to the invention described in Patent Document 2, provision of appropriate viscosity is achieved.

[0007] Prior art literature

[0008] Patent Literature

[0009] Patent Document 1: Japanese Patent Application Publication No. 2014-062231

[0010] Patent Document 2: International Publication No. 2012 / 115250 Summary of the invention

[0011] Problem that the invention aims to solve

[0012] However, in the prior art, viscosity and cleaning power cannot be satisfied at the same time.

[0013] Therefore, an object of the present invention is to provide a liquid detergent composition for textile products which has an appropriate viscosity and is therefore excellent in workability, and which is easy to maintain at an alkaline pH when diluted with water to prepare a cleaning liquid and is therefore excellent in cleaning power.

[0014] Solutions for solving problems

[0015] The present invention has the following aspects.

[0016] <1>

[0017] A liquid detergent composition for fiber products, comprising component (A): carbonate, component (B): sulfate, and component (C): surfactant (excluding soap), wherein the content of the component (A) is 0.3 to 1% by mass, and the content of the component (B) is 1 to 10% by mass, relative to the total mass of the liquid detergent composition, and the pH of the liquid detergent composition is 8.5 or higher.

[0018] <2>

[0019] according to <2> The liquid detergent composition for fiber products described above, wherein the mass ratio of the component (A) to the component (B) is 0.05 to 0.5.

[0020] <3>

[0021] according to <1> or <2> The liquid detergent composition for fiber products further contains component (D): alkanolamine, and the content of the component (D) is 0.1 to 1% by mass relative to the total mass of the liquid detergent composition.

[0022] <4>

[0023] according to <3> The liquid detergent composition for fiber products described above, wherein the mass ratio of the component (A) to the component (D) is 0.1 to 4.

[0024] <5>

[0025] according to <1> ~ <4> The liquid detergent composition for fiber products according to any one of the preceding claims, wherein the pH of the washing liquid diluted with water to 300 to 1000 times by volume is 8.5 or higher.

[0026] <6>

[0027] according to <1> ~ <5> The liquid detergent composition for fiber products according to any one of the preceding claims, wherein the component (A) is a hydrogen carbonate salt.

[0028] <7>

[0029] according to <1> ~ <6> The liquid detergent composition for textile products described in any one of the preceding claims, wherein the content of the component (C) is 1 to 25% by mass based on the total mass of the liquid detergent composition for textile products.

[0030] <8>

[0031] A method for washing fiber products, wherein the fiber products are diluted with water <1> ~ <7> The liquid detergent composition for textile products described in any one of the above is prepared into a washing liquid having a pH of 8.5 or higher, and the washing liquid is used to wash the laundry.

[0032] Effects of the Invention

[0033] The liquid detergent composition for textile products according to the present invention has high viscosity and excellent cleaning power. DETAILED DESCRIPTION

[0034] (Liquid cleaning composition for fiber products)

[0035] The liquid detergent composition for textile products of the present invention (hereinafter, sometimes simply referred to as “liquid detergent composition”) contains components (A) to (C).

[0036] The viscosity of the liquid detergent composition at 30°C is preferably 300 to 2000 mPa·s, more preferably 900 to 1500 mPa·s. When the viscosity of the liquid detergent composition is above the above lower limit, the fluidity can be suppressed, making the metering operation easier. When the viscosity of the liquid detergent composition is below the above upper limit, the fluidity is improved and it is easy to put into the washing machine, and when applied to the laundry, it penetrates the laundry more quickly.

[0037] The viscosity of the liquid cleaning composition is a value measured by rotating the liquid cleaning composition adjusted to 30° C. for 60 seconds using a Burroughsfield viscometer (B-type viscometer) equipped with a No. 3 rotor at a rotor speed of 60 rpm.

[0038] The pH of the liquid detergent composition (hereinafter also referred to as "composition pH") is 8.5 or more, preferably 9.0 to 10.5, and more preferably 9.0 to 10.0. If the composition pH is above the lower limit, the cleaning power is improved. If the composition pH is below the upper limit, the liquid stability is further improved.

[0039] The pH of the composition is a value measured at 30°C using a pH meter (product name: HM-30G, manufactured by DKK-TOA CORPORATION).

[0040] When the liquid cleaning agent composition is diluted with water to 300 to 1000 times by volume to prepare a dilution, the pH of the dilution (hereinafter also referred to as "diluent pH") is preferably 8.5 or more, more preferably 8.7 or more, and even more preferably 9.0 or more. When the dilution pH is above the above lower limit, the cleaning power is further improved. The upper limit of the dilution pH is substantially 10.5.

[0041] The pH of the diluted solution is a value measured at 30° C. using a pH meter (product name: HM-30G, manufactured by DKK-TOA CORPORATION).

[0042] <(A)Component>

[0043] (A) Component is a carbonate. When the liquid detergent composition contains (A) component, the pH of the washing liquid is increased, and the cleaning power is improved.

[0044] As the component (A), an inorganic salt is preferred. Examples of the component (A) include carbonates, hydrogen carbonates, and sesquicarbonates of alkali metals, and carbonates and hydrogen carbonates of alkaline earth metals.

[0045] Examples of the alkali metal carbonate include sodium carbonate, potassium carbonate, sodium sesquicarbonate, potassium sesquicarbonate, and the like.

[0046] Examples of the alkali metal hydrogen carbonate include sodium hydrogen carbonate and potassium hydrogen carbonate.

[0047] Examples of the alkaline earth metal carbonate include calcium carbonate and magnesium carbonate.

[0048] Examples of the alkaline earth metal hydrogen carbonate include calcium hydrogen carbonate and magnesium hydrogen carbonate.

[0049] From the viewpoint of further improving the detergency and further increasing the viscosity, the component (A) is preferably an alkali metal carbonate or hydrogen carbonate, and more preferably sodium carbonate or sodium hydrogen carbonate.

[0050] The component (A) may be used alone or in combination of two or more.

[0051] The content of component (A) is 0.3 to 1% by mass, preferably 0.4 to 0.9% by mass, and more preferably 0.4 to 0.8% by mass relative to the total mass of the liquid cleaning composition. When the content of component (A) is above the lower limit, the cleaning power is improved. When the content of component (A) is below the upper limit, the viscosity of the liquid cleaning composition is improved.

[0052] <(B) Component>

[0053] (B) Component is a sulfate. The viscosity of the liquid detergent composition increases by containing (B) component.

[0054] As the component (B), an inorganic salt is preferred. As the component (B), for example, sulfates of alkali metals and sulfates of alkaline earth metals can be mentioned.

[0055] Examples of the alkali metal sulfate include sodium sulfate and potassium sulfate.

[0056] Examples of the alkaline earth metal sulfate include calcium sulfate and magnesium sulfate.

[0057] From the viewpoint of further increasing the viscosity and improving the appearance stability of the liquid detergent composition, the component (B) is preferably an alkali metal sulfate, and more preferably sodium sulfate.

[0058] The component (B) may be used alone or in combination of two or more.

[0059] The content of component (B) is 1 to 10% by mass, preferably 2 to 8% by mass, and more preferably 4 to 6% by mass relative to the total mass of the liquid cleaning composition. When the content of component (B) is above the lower limit, the viscosity of the liquid cleaning composition increases. When the content of component (B) is below the upper limit, the viscosity of the liquid cleaning composition increases.

[0060] In the liquid detergent composition, the mass ratio of the content of component (A) to the content of component (B), i.e., the mass ratio represented by component (A) / component (B) (hereinafter also referred to as "A / B ratio") is preferably 0.05 to 0.5, more preferably 0.06 to 0.35, and further preferably 0.07 to 0.25. If the A / B ratio is above the lower limit, the cleaning power is further improved. When the A / B ratio is below the upper limit, the viscosity is further improved.

[0061] <(C) Ingredients>

[0062] The component (C) is a surfactant other than soap. By containing the component (C), the cleaning power can be exerted.

[0063] As the (C) component, anionic surfactants ((C1) component), nonionic surfactants ((C2) component), cationic surfactants, amphoteric surfactants, semi-polar surfactants, etc. can be listed. Among them, as the (C) component, it is preferred to include at least one of the (C1) component and the (C2) component, and it is preferred to include both the (C1) component and the (C2) component. By containing these surfactants, the liquid detergent composition can further improve the cleaning power.

[0064] The component (C) may be used alone or in combination of two or more.

[0065] 《(C1) Ingredients》

[0066] The component (C1) is an anionic surfactant. Examples of the component (C1) include the following surfactants (1) to (11).

[0067] (1) Linear alkylbenzene sulfonate (LAS) having an alkyl group having 8 to 18 carbon atoms.

[0068] (2) Alkane sulfonates having 10 to 20 carbon atoms.

[0069] (3) α-olefin sulfonate (AOS) having 10 to 20 carbon atoms.

[0070] (4) Alkyl sulfate or alkenyl sulfate having 10 to 20 carbon atoms (AS).

[0071] (5) Alkyl (or alkenyl) ether sulfate (AES) having a linear or branched alkyl (or alkenyl) group having 10 to 20 carbon atoms, obtained by adding an average of 0.5 to 10 mol of any one of alkylene oxides having 2 to 4 carbon atoms or ethylene oxide (EO) and propylene oxide (PO) (molar ratio EO / PO = 0.1 / 9.9 to 9.9 / 0.1).

[0072] (6) Alkyl (or alkenyl) phenyl ether sulfate having a linear or branched alkyl (or alkenyl) group having 10 to 20 carbon atoms, obtained by adding an average of 3 to 30 moles of any one of alkylene oxides having 2 to 4 carbon atoms or ethylene oxide and propylene oxide (molar ratio EO / PO = 0.1 / 9.9 to 9.9 / 0.1).

[0073] (7) Alkyl (or alkenyl) ether carboxylates having a linear or branched alkyl (or alkenyl) group having 10 to 20 carbon atoms, obtained by adding an average of 0.5 to 10 mol of any one of alkylene oxides having 2 to 4 carbon atoms or ethylene oxide and propylene oxide (molar ratio EO / PO = 0.1 / 9.9 to 9.9 / 0.1).

[0074] (8) Alkyl polyol ether sulfates such as alkyl glyceryl ether sulfonic acid having 10 to 20 carbon atoms.

[0075] (9) Long chain monoalkyl, dialkyl or sesquialkyl phosphates.

[0076] (10) Polyoxyethylene monoalkyl, dialkyl or sesquialkyl phosphates.

[0077] (11) α-Sulfonic fatty acid ester salts.

[0078] The component (C1) may be a surfactant other than the above-mentioned (1) to (11). Examples of the component (C1) other than the above-mentioned include carboxylic acid-type anionic surfactants such as alkyl ether carboxylates, polyoxyalkylene ether carboxylates, alkylamide ether carboxylates or alkenylamide ether carboxylates, and acylamino carboxylates; and phosphate-type anionic surfactants such as alkyl phosphate ester salts, polyoxyalkylene alkyl phosphate ester salts, polyoxyalkylene alkylphenyl phosphate ester salts, and glycerol fatty acid ester monophosphate ester salts.

[0079] As the form of the salt of the component (C1), alkali metal salts, alkaline earth metal salts, alkanolamine salts, ammonium salts, etc. can be listed. As the alkali metal salt, sodium salts, potassium salts, etc. can be listed. As the alkaline earth metal salt, magnesium salts, etc. can be listed. As the alkanolamine salt, monoethanolamine salts, diethanolamine salts, etc. can be listed. Among them, as the form of the salt of the component (C1), alkali metal salts are preferred.

[0080] As the (C1) component, from the viewpoint of cleaning power, viscosity adjustment and stability, preferably, a linear alkylbenzene sulfonate (LAS) having an alkyl group having 8 to 18 carbon atoms, an alkyl (or alkenyl) ether sulfate (AES) having a linear or branched alkyl (or alkenyl) group having 10 to 20 carbon atoms obtained by adding an average of 0.5 to 10 mol of at least one of alkylene oxides having 2 to 4 carbon atoms; more preferably, an alkyl (or alkenyl) ether sulfate (AES) having a linear or branched alkyl (or alkenyl) group having 10 to 20 carbon atoms obtained by adding an average of 0.5 to 10 mol of at least one of ethylene oxide (EO) and propylene oxide (PO).

[0081] The component (C1) may be used alone or in combination of two or more.

[0082] When the liquid cleaning composition contains component (C1), the amount of component (C1) is preferably 1 to 20% by mass, more preferably 3 to 15% by mass, and further preferably 5 to 12% by mass relative to the total mass of the liquid cleaning composition. When the content of component (C1) is greater than or equal to the above lower limit, the cleaning power and viscosity are improved. When the content of component (C1) is less than or equal to the above upper limit, the environmental load can be further reduced.

[0083] 《(C2) ingredient》

[0084] The component (C2) is a nonionic surfactant. As the component (C2), a conventionally known nonionic surfactant can be used.

[0085] As the component (C2), an alcohol alkoxylate represented by the following formula (c21) (hereinafter also referred to as “component (c21)”) is preferred.

[0086] R 21 -O-(A 21 O) s -H(c21)

[0087] (In formula (c21), R 21 is a hydrocarbon group having 8 to 18 carbon atoms, A 21 O is an oxyalkylene group having 2 to 4 carbon atoms, and s represents A 21 The average number of repetitions of O is a number between 1 and 30.)

[0088] R 21It is a hydrocarbon group having 8 to 18 carbon atoms.

[0089] R 21 It can be a straight chain, a branched chain, or a cyclic structure. 21 It is preferably an aliphatic hydrocarbon group, more preferably a linear or branched alkyl group, or a linear or branched alkenyl group, and further preferably a linear alkyl group or a linear alkenyl group.

[0090] R 21 The carbon number of R is 8 to 18, preferably 10 to 16, and more preferably 10 to 14. 21 When the carbon number is within the above range, the cleaning power is further improved.

[0091] A 21 O is an oxyalkylene group having 2 to 4 carbon atoms.

[0092] A 21 O may be any one of an oxyethylene group, an oxypropylene group, or an oxybutylene group, or may be a mixture of two or more of these.

[0093] As A 21 O is preferably at least one of oxyethylene and oxypropylene, and more preferably oxyethylene.

[0094] When two or more of the oxyethylene group, the oxypropylene group or the oxybutylene group are mixed, they may be mixed randomly or in blocks.

[0095] s is a number of 1 to 30. From the viewpoint of cleaning power and appearance stability, s is preferably 3 to 15, more preferably 3 to 10.

[0096] It should be noted that s represents A 21 The "average" repeating number of O. That is, the (C21) component is an aggregate of molecules having different repeating numbers of oxyalkylene groups. 21 A collection of different molecules.

[0097] The component (C2) may be used alone or in combination of two or more.

[0098] When the liquid cleaning composition contains component (C2), the content of component (C2) is preferably 1 to 10% by mass, more preferably 2 to 7% by mass, relative to the total mass of the liquid cleaning composition. When the content of component (C2) is above the lower limit, the cleaning power is improved and the viscosity is improved. When the content of component (C2) is below the upper limit, the environmental load can be further reduced.

[0099] 《Other surfactants》

[0100] The component (C) may further contain one or more selected from the group consisting of a cationic surfactant, an amphoteric surfactant, and a semi-polar surfactant.

[0101] Examples of the cationic surfactants include long-chain aliphatic amide alkyl tertiary amines or their salts such as caprylic acid dimethylaminopropylamide, capric acid dimethylaminopropylamide, lauric acid dimethylaminopropylamide, myristic acid dimethylaminopropylamide, palmitic acid dimethylaminopropylamide, stearic acid dimethylaminopropylamide, behenic acid dimethylaminopropylamide, and oleic acid dimethylaminopropylamide; aliphatic ester alkyl tertiary amines or their salts such as palmitate propyl dimethylamine and stearate propyl dimethylamine; palmitic acid diethanolaminopropylamide and stearic acid diethanolaminopropylamide, etc.

[0102] Examples of the salt form of the cationic surfactant include alkali metal salts (sodium salt, potassium salt, etc.), alkaline earth metal salts (magnesium salt, etc.), and alkanolamine salts (monoethanolamine salt, diethanolamine salt, etc.).

[0103] These cationic surfactants may be used alone or in combination of two or more.

[0104] Examples of the amphoteric surfactant include alkyl betaine type, alkyl amide betaine type, imidazoline type, alkyl amino sulfone type, alkyl amino carboxylic acid type, alkyl amide carboxylic acid type, amide amino acid type, and phosphoric acid type amphoteric surfactants.

[0105] These amphoteric surfactants may be used alone or in combination of two or more.

[0106] Examples of the semi-polar surfactant include alkylamine oxides and alkylamidopropyldimethylamine oxides.

[0107] These semi-polar surfactants may be used alone or in combination of two or more.

[0108] The content of component (C) is preferably 1 to 25% by mass, more preferably 3 to 20% by mass, and further preferably 7 to 15% by mass relative to the total mass of the liquid detergent composition. When the content of component (C) is above the lower limit, the cleaning power is improved and the viscosity is improved. When the content of component (C) is below the upper limit, the environmental load can be further reduced.

[0109] The total amount of the components (C1) and (C2) (hereinafter also referred to as "the total amount of C1C2") is preferably 1 to 20% by mass, more preferably 3 to 15% by mass, and still more preferably 5 to 10% by mass relative to the total mass of the liquid detergent composition. If the total amount of C1C2 is greater than the above lower limit, the cleaning power is improved and the viscosity is improved. If the total amount of C1C2 is less than the above upper limit, the environmental load can be further reduced.

[0110] In the liquid detergent composition, the mass ratio of the content of the component (C1) to the content of the component (C2), that is, the mass ratio represented by the component (C1) / component (C2) (hereinafter also referred to as "C1 / C2 ratio") is preferably 0.5 to 10, more preferably 1 to 7, and even more preferably 1 to 5. When the C1 / C2 ratio is within the above range, the viscosity is further increased.

[0111] The liquid cleaning composition may contain any component other than components (A) to (C). Examples of the optional component include alkanolamine (component (D)), water, defoaming agents, chelating agents, detergents, dispersants, enzymes, preservatives, fluorescent agents, fragrances, antioxidants, colorants, pH adjusters, and the like.

[0112] 《(D) ingredient》

[0113] (D) Component is an alkanolamine. When the liquid detergent composition contains (D) component, the viscosity of the liquid detergent composition is further increased.

[0114] Component (D) includes monoalkanolamine, dialkanolamine, and trialkanolamine. The carbon number of each alkanol constituting component (D) is, for example, 2 to 4. Among them, monoalkanolamine is preferred, and monoethanolamine is more preferred, from the viewpoint of further increasing the viscosity of the liquid detergent composition and further improving the liquid stability.

[0115] The component (D) may be used alone or in combination of two or more.

[0116] When the liquid cleaning composition contains component (D), the amount of component (D) is preferably 0.1 to 1% by mass, more preferably 0.2 to 0.5% by mass, relative to the total mass of the liquid cleaning composition. When the content of component (D) is greater than or equal to the above lower limit, the viscosity of the liquid cleaning composition is further increased. When the content of component (D) is less than or equal to the above upper limit, the pH of the dilution liquid is further increased.

[0117] In the liquid detergent composition, the mass ratio of the content of component (A) to the content of component (D), i.e., the mass ratio represented by component (A) / component (D) (hereinafter also referred to as "A / D ratio") is preferably 0.1 to 4, more preferably 0.5 to 3.3, and even more preferably 1 to 2.5. When the A / D ratio is within the above range, the pH of the dilution liquid is further increased.

[0118] "water"

[0119] When the liquid cleaning agent composition contains water, the content of water is preferably 50 to 95% by mass, more preferably 60 to 90% by mass, and further preferably 70 to 85% by mass relative to the total mass of the liquid cleaning agent composition. When the content of water is above the above lower limit, the dispersibility of the liquid cleaning agent composition in water is further improved. When the content of water is below the above upper limit, the amount of the liquid cleaning agent composition used per time can be further reduced.

[0120] 《Defoaming agent》

[0121] Examples of the defoaming agent include higher fatty acids and salts thereof (so-called soaps) and siloxanes. The higher fatty acid has a hydrocarbon group having 8 to 18 carbon atoms.

[0122] The defoaming agent may be used alone or in combination of two or more.

[0123] When the liquid detergent composition contains a higher fatty acid, the content of the higher fatty acid is preferably 0.1 to 1% by mass based on the total mass of the liquid detergent composition.

[0124] Examples of the silicone include dimethyl silicone, polyether-modified silicone, and amino-modified silicone. Examples of these silicones include oil-based silicones, oil-composite silicones, solution-based silicones, emulsion-based silicones, and self-emulsifying silicones.

[0125] When the liquid cleaning composition contains siloxane, the content of siloxane is preferably 0.001 to 5% by mass based on the total mass of the liquid cleaning composition.

[0126] Chelating Agents

[0127] Examples of the chelating agent (metal ion scavenger) include acetic acid, adipic acid, glycolic acid, diglycolic acid, monochloroacetic acid, oxydisuccinic acid, carboxymethyloxysuccinic acid, lactic acid, tartaric acid, oxalic acid, malic acid, gluconic acid, carboxymethylsuccinic acid, carboxymethyltartaric acid and other acids or carboxylic acids of their salts; ethylenediaminetetraacetic acid (EDTA), triethylenetetraacetic acid (TTHA), methylglycine diacetic acid (MGDA), 1,3-propane-2-diaminetetraacetic acid (PDTA), hydroxyethylethylenediaminetriacetic acid (HEDTA), hydroxyethyliminodiacetic acid (HIDA), hydroxyethylhexylene glycol ... Aminocarboxylic acids such as iminodisuccinic acid (HIDS), nitrilotriacetic acid (NTA), diethylenetriaminepentaacetic acid (DTPA), propylenediaminetetraacetic acid, triethylenetetraaminehexaacetic acid, ethylenediaminetetraacetic acid, ethylenediaminetetrapropionic acid, cyclohexane-1,2-diaminetetraacetic acid, iminodisuccinic acid, aspartic acid diacetic acid, β-alanine diacetic acid, hydroxyiminodisuccinic acid, or their salts; organic phosphonic acids such as 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP), N,N,N',N'-tetrakis(phosphonomethyl)ethylenediamine (EDTMP), or their salts. Examples of the salt form of the chelating agent include sodium, potassium, calcium, and magnesium.

[0128] These chelating agents may be used alone or in combination of two or more.

[0129] When the liquid detergent composition contains a chelating agent, the content of the chelating agent is preferably 0.001 to 10% by mass based on the total mass of the liquid detergent composition.

[0130] Stain Remover

[0131] As the soil release agent, there can be mentioned a polymer having at least one repeating unit selected from the group consisting of an alkylene terephthalate unit and an alkylene isophthalate unit, and an oxyalkylene unit. Such a polymer can be listed, for example, as described in International Publication No. 2017 / 142012. As a commercially available product of the SR agent, for example, the trade name "TexCare SRN-170" manufactured by Clariant can be listed.

[0132] In addition, polymers (P) such as alkylene oxide adducts of polyalkyleneamines can be mentioned. Examples of alkylene oxide adducts of polyalkyleneamines include those in which a side chain represented by the following formula (p) is bonded to an alkyleneamine main chain and a nitrogen atom of the alkyleneamine main chain.

[0133] -(EO) a (PO) b Formula (p)

[0134] In formula (p), EO is oxyethylene, PO is oxypropylene, a is a number of 3 to 60 representing the average number of repetitions of EO, and b is a number of 0 to 60 representing the average number of repetitions of PO. As such a polymer (P), for example, polymers described in International Publication No. 2017 / 142012 and Japanese Patent Publication No. 2017-514967 can be cited. As a polymer (P), for example, a trade name "Sokalan HP20" manufactured by BASF can be cited.

[0135] In addition, cationized cellulose described in Japanese Patent Application Laid-Open No. 2019-90057 can be cited.

[0136] These detergents may be used alone or in combination of two or more.

[0137] When the liquid cleaning composition contains a detergent, the content of the detergent is preferably 0.1 to 20% by mass based on the total mass of the liquid cleaning composition.

[0138] Dispersants

[0139] Examples of the dispersant include polyacrylic acid and salts thereof, polymethacrylic acid and salts thereof, high molecular weight polycarboxylic acids and salts thereof, and the like.

[0140] The dispersant may be used alone or in combination of two or more.

[0141] When the liquid detergent composition contains a dispersant, the content of the dispersant is preferably 0.01 to 5% by mass based on the total mass of the liquid detergent composition.

[0142] Enzymes

[0143] Examples of the enzyme include protease, amylase, lipase, cellulase, mannanase, etc. Here, the "enzyme" refers to an enzyme preparation.

[0144] Examples of the protease include Progress Uno (registered trademark) 100L, Progress Uno (registered trademark) 101L, Medley (registered trademark) Core 210L, Savinase (registered trademark) 16L, Savinase Ultra 16L, Savinase Ultra 16XL, Savinase Evity 16L, Everlase (registered trademark) 16L Type EX, Everlase 16L, Everlase Ultra 16L, Esperase (registered trademark) 8L, Alcalase (registered trademark) 2.5L, Alcalase Ultra 2.5L, Liquanase (registered trademark) 2.5L, Liquanase Ultra 2.5L, Liquanase Ultra 2.5XL, and Coronase (registered trademark) 48L (all trade names) available from Novozymes as protease preparations; and Purafect (registered trademark) L, Purafect OX, and Properase L (all trade names) available from Genencor.

[0145] Examples of the amylase include Termamyl (registered trademark) 300L, Termamyl Ultra 300L, Duramyl (registered trademark) 300L, Stainzyme (registered trademark) 12L, Stainzyme Plus 12L, Amplify 12L (registered trademark), Amplify Prime 100L, and Medley (registered trademark) Core 210L (all trade names) available as amylase preparations from Novozymes, Maxamyl (trade name) available from Genencor, Pullulanase Amano (trade name) available from Amano Pharmaceutical Co., Ltd., and DB-250 (trade name) available from Seikagaku Kogyo Co., Ltd.

[0146] Examples of the lipase include Lipex (registered trademark) 100L, Lipex Evity 100L, and Lipolase (registered trademark) 100L (all trade names), which are available as lipase preparations from Novozymes.

[0147] Examples of the cellulase include Endolase (registered trademark) 5000L, Celluzyme (registered trademark) 0.4L, and Carzyme (registered trademark) 4500L (all trade names), which are available as cellulase preparations from Novozymes.

[0148] Examples of the mannanase include Mannaway (registered trademark) 4L (trade name) available from Novozymes as a mannanase preparation.

[0149] Among the above-mentioned proteases, preferred are Savinase 16L, Savinase Ultra 16L, SavinaseUltra 16XL, Savinase Evity 16L, Everlase 16L, Everlase Ultra 16L, Alcalase2.5L, Alcalase Ultra 2.5L, Liquanase 2.5L, Liquanase Ultra 2.5L, Liquanase Ultra2.5XL, Coronase 48L, and Progress Uno, and particularly preferred are Alcalase 2.5L, Everlase16L, Savinase16L, Savinase Evity 16L, Coronase 48L, and Progress Uno.

[0150] The enzyme may be used alone or in combination of two or more.

[0151] When the liquid detergent composition contains an enzyme, the content of the enzyme is preferably 0.01 to 10% by mass based on the total mass of the liquid detergent composition.

[0152] "preservative"

[0153] Examples of the preservative include "KATHON CG" (trade name) manufactured by Dow Chemical, "ACTICIDE MBS" (trade name) manufactured by Thor Japan, "NIPACIDE BIT20" (trade name) manufactured by Clariant, "Margal KN9" (trade name) and "Margal K20" (trade name) manufactured by Troy Siam Co., Ltd., "NEOLONE 950" (trade name) manufactured by Dupont, and "Sodium Benzoate" (trade name) manufactured by Toagosei Co., Ltd.

[0154] The preservative may be used alone or in combination of two or more.

[0155] When the liquid cleaning composition contains an antiseptic, the content of the antiseptic is preferably 0.001 to 1% by mass based on the total mass of the liquid cleaning composition.

[0156] Fluorescent Agent

[0157] Examples of the fluorescent agent include biphenyl-type fluorescent agents such as 4,4′-bis(2-sulfostyryl)biphenyl disodium salt and stilbene-type fluorescent agents such as 4,4′-bis((4-amino-6-morpholino-1,3,5-triazinyl-2)amino)stilbene-2,2′-disulfonate.

[0158] The fluorescent agent may be used alone or in combination of two or more.

[0159] When the liquid cleaning composition contains a fluorescent agent, the content of the fluorescent agent is preferably 0.01 to 10% by mass based on the total mass of the liquid cleaning composition.

[0160] "spices"

[0161] As the fragrance, fragrance raw materials alone, fragrances including fragrance compositions including fragrance raw materials, fragrance solvents, fragrance stabilizers, etc., and fragrances commonly used in liquid detergent compositions can be blended. In addition, capsule fragrances can also be blended as fragrances.

[0162] The fragrance may be a single kind or a combination of two or more kinds.

[0163] When the liquid detergent composition contains a fragrance, the content of the fragrance is preferably 0.01 to 5% by mass based on the total mass of the liquid detergent composition.

[0164] Antioxidants

[0165] Examples of the antioxidant include butylhydroxytoluene, distyrenated cresol, sodium sulfite, and sodium hydrogen sulfite.

[0166] The antioxidant may be used alone or in combination of two or more.

[0167] When the liquid cleaning composition contains an antioxidant, the content of the antioxidant is preferably 0.01 to 2% by mass based on the total mass of the liquid cleaning composition.

[0168] Colorants

[0169] Examples of the colorant include quinone-based dyes, triphenylmethane-based dyes, azo-based dyes, xanthene-based dyes, quinoline-based dyes, pyrene-based dyes, etc. In this specification, "CI" is an abbreviation for Color Index.

[0170] The structure of each pigment is described in the "Statutory Pigment Handbook" (edited by the Japan Cosmetic Industry Liaison Association) and the Dye Handbook (edited by the Society of Synthetic Organic Chemistry).

[0171] Examples of quinone-based pigments include CI Solvent Blue 63 (CI Solvent Blue 63, Blue No. 403), CI Solvent Violet 13 (CI Solvent Violet 13, Purple No. 201), CI Acid Green 25 (CI Acid Green 25, Green No. 201), CI Acid Blue 112, CI Solvent Green 3 (CI Green No. 202), CI Vat Blue 6 (CI Vat Blue 6, Blue No. 204), CI Solvent Blue 11, CI Solvent Blue 12, CI Solvent Blue 36, CI Acid Violet 43 (CI Violet No. 401), CI Acid Blue 41, CI Acid Blue 62, CI Acid Blue 78, CI Direct Green 28, CI Direct Blue 30, CI Direct Blue 31, CI Direct Blue 32, CI Direct Blue 33, CI Direct Blue 34, CI Direct Blue 35, CI Direct Blue 36, CI Direct Blue 37, CI Direct Blue 38, CI Direct Blue 39, CI Direct Blue 40, CI Direct Blue 41, CI Acid Blue 62, CI Acid Blue 78, CI Direct Green 28, CI Direct Blue 39, CI Direct Blue 30, CI Direct Blue 31, CI Direct Blue 32, CI Direct Blue 33, CI Direct Blue 34, CI Direct Blue 35, CI Direct Blue 36, CI Direct Blue 37, CI Direct Blue 38, CI Direct Blue 39, CI Direct Blue 38, CI Direct Blue 39, CI Direct Blue 30 CI Acid Blue 28), CI Acid Violet 34, CI Acid Violet 41, CI Acid Violet 51, CI Acid Blue 23, CI Acid Blue 25, CI Acid Blue 27, CI Acid Blue 40, CI Acid Blue 43, CI Acid Blue 45, CI Acid Blue 80, CI Acid Blue 126, CI Acid Blue 127, CI Acid Blue 129, CI Acid Blue 138, CI Acid Blue 143, CI Acid Blue 182, CI Acid Blue 183, CI Acid Blue 203, CI Acid Blue 204, CI Acid Blue 205, CI Acid Green 36, CI Acid Green 40, CI Acid Green 41, CI Acid Green 44, CI Acid Brown 27, CI Acid Black 48, CI Acid Black 50, CI Disperse Red 9 9), CI solvent violet 14, CI disperse violet 1, CI acid green 27, etc. In addition, among the above, for solvent-based (oil-soluble) pigments, water-soluble polymers such as polyethylene glycol and polypropylene glycol can also be chemically modified at the end of the structure of the chromophore to increase water solubility. Specifically, trade names such as Liquitint Blue HP, Liquitint Blue BL, and Liquitint Blue MC manufactured by Milliken can be cited.

[0172] Examples of the triphenylmethane dye include Blue No. 1 (CI42090) and Green No. 3 (CI42053).

[0173] Examples of the azo dye include Yellow 4 (CI19140).

[0174] Examples of xanthene-based pigments include Red No. 106 (CI Acid Red 52), Red No. 3 (CI Acid Red 51), Red No. 214 (CI Solvent Red 49), Red No. 215 (CI Solvent Red 49), Red No. 218 (CI Solvent Red 48), Red No. 223 (CI Solvent Red 43), Ancient Red No. 201 (CI Solvent Red 72), Ancient Red No. 206 (CI Solvent Red 73), Red No. 104 (1) (CI Acid Red 92), and Red No. 105 (1) (CI Acid Red 9 4), Red No. 213 (CI Basic Violet 10), Red No. 230 (1) (CI Acid Red 87), Red No. 230 (2) (CI Acid Red 87), Red No. 231 (CI Acid Red 92), Red No. 232 (CI Acid Red 94), Ancient Red No. 207 (CI Acid Red 95), Yellow No. 201 (CI Acid Yellow 73), Yellow No. 202 (1) (CI Acid Yellow 73), Yellow No. 202 (2) (CI Acid Yellow 73), Red No. 401 (CI Acid Violet 9).

[0175] Examples of quinoline dyes include Yellow No. 203 (CI Acid Yellow 3) and Yellow No. 204 (CI Solvent Yellow 33).

[0176] Examples of the pyrene-based dye include Green No. 204 (CI Solvent Green 7).

[0177] The colorant may be used alone or in combination of two or more.

[0178] When the liquid detergent composition contains a colorant, the content of the colorant is preferably 0.1 to 100 ppm by mass based on the total mass of the liquid detergent composition.

[0179] pH Adjuster

[0180] Examples of the pH adjuster include sulfuric acid, hydrochloric acid, and nitric acid. Among them, sulfuric acid is preferred from the viewpoint of ease of handling during production.

[0181] The pH adjuster may be used alone or in combination of two or more.

[0182] When the liquid cleaning composition contains component (D), the mass ratio of the content of component (C) to the total content of component (A) and component (D), i.e., the mass ratio represented by component (C) / [component (A)+component (D)] (hereinafter also referred to as "C / (A+D) ratio") is preferably 6.5 to 30.0, more preferably 8.0 to 28.5, and even more preferably 9.5 to 27.0. When the C / (A+D) ratio is within the above range, the viscosity is further increased.

[0183] (Manufacturing method)

[0184] The method for producing the liquid detergent composition is not particularly limited, and the liquid detergent composition can be produced according to a conventional method.

[0185] For example, the liquid cleaning composition is obtained by mixing the components constituting the liquid cleaning composition. Alternatively, for example, the above-mentioned component (B), component (C), component (D), a portion of water, and one or more optional components other than a pH adjuster as required may be mixed, and after adjusting to a predetermined pH using a pH adjuster as required, the component (A) and the remaining water may be mixed to produce the liquid cleaning composition.

[0186] (How to use)

[0187] Examples of methods for using the liquid detergent composition include a method of diluting the liquid detergent composition with water to prepare a washing liquid, and bringing the washing liquid into contact with the laundry. Examples of methods for bringing the washing liquid into contact with the laundry include a method of, for example, adding the liquid detergent composition to the liquid detergent composition inlet of the washing machine and then operating the washing machine; a method of putting the liquid detergent composition into water together with the laundry during washing; and a method of immersing the laundry in a washing liquid prepared by dissolving the liquid detergent composition in water in advance. Examples of methods for using the liquid detergent composition include a method of directly applying the liquid detergent composition to the laundry, for example, leaving it for 3 minutes to 24 hours, and then washing it normally.

[0188] In addition, it is also preferable to use a washing machine equipped with an automatic detergent injection device that has been put into practical use in recent years. The automatic detergent injection device is a device that automatically injects a liquid detergent composition from a tank containing the liquid detergent composition into a washing tank via a filter for removing garbage and an injection pipe provided at the bottom of the tank. A metering device such as an injection pump is provided in the middle of the injection pipe, and a certain amount set according to the amount of laundry, etc., can be transferred from the tank to the washing tank.

[0189] If the automatic detergent feeding device is used, not only can the labor of measuring be saved, but also the liquid detergent composition can be prevented from adhering to the hands or spilling during measuring to contaminate the washing machine and the surroundings.

[0190] In addition, it is also preferred to use an automatic dispenser that can automatically eject a specified amount of liquid. When using an automatic dispenser, even a small amount of liquid detergent composition can be accurately measured, so it is easy to exert sufficient cleaning power and waste caused by excessive use can be avoided, so it is preferred.

[0191] There are also commercially available automatic dispensers that use infrared sensors, etc., and automatically dispense even without touching a switch, etc. If such an automatic dispenser is used, the liquid detergent composition can be measured simply by extending the container held by one hand, which greatly reduces the burden on the user.

[0192] In addition, when using an automatic dispenser, it is also preferred to receive the liquid detergent composition sprayed into a soft container and directly put the soft container into the washing machine. In this way, the total amount of the sprayed liquid detergent composition can be reliably dissolved in the washing liquid.

[0193] Examples of the material of the soft container that can be directly put into a washing machine include silicone resin, polyvinyl chloride, elastomer, soft polyester, soft polypropylene, and polyurethane.

[0194] Examples of laundry include fiber products such as clothing (clothing materials), rags, towels, bed sheets, curtains, etc. The raw materials of the fiber products are not particularly limited, and natural fibers such as cotton, silk, and wool, and chemical fibers such as polyester and polyamide may be used.

[0195] The cleaning liquid is prepared by dispersing the liquid cleaning composition in water. The cleaning liquid is obtained, for example, by diluting the liquid cleaning composition with water to 5 to 6000 times by volume (dilution ratio). The dilution ratio is preferably 300 to 1000 times by volume, more preferably 400 to 700 times by volume.

[0196] The pH of the washing liquid (hereinafter also referred to as "washing liquid pH") is preferably 8.5 or more, more preferably 9 or more. When the washing liquid pH is at least the above lower limit, the cleaning power is further improved. The upper limit of the washing liquid pH is substantially 10.5.

[0197] The bath ratio (mass of detergent during washing / mass of clothes) of the washing liquid to the laundry is preferably 5 or more for a drum-type washing machine and 10 or more for a vertical-type washing machine.

[0198] Example

[0199] Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited to the following description.

[0200] (Raw materials used)

[0201] <(A)Component>

[0202] A-1: sodium carbonate, manufactured by Dahuachem / GHCL Limited, trade name “Soda Ash Dense”.

[0203] A-2: Sodium bicarbonate, manufactured by HENGYANG AIJIE TECHNOLOGY, trade name “Sodium bicarbonate”.

[0204] <(B) Component>

[0205] B-1: sodium sulfate, manufactured by Nippon Chemical Industry Co., Ltd., trade name “neutral anhydrous sodium sulfate”.

[0206] <(C) Ingredients>

[0207] C1-1: polyoxyethylene alkyl ether sulfate (AES (2)), average repeating number of oxyethylene is 2. Ethylene oxide is added to an aliphatic alcohol having 12 to 14 carbon atoms so that the average repeating number is 2. Manufactured by Kao Corporation, trade name: "EMAL270N"

[0208] C1-2: linear alkylbenzenesulfonic acid, manufactured by Lion Specialty Chemicals Co., Ltd., trade name “LIPON LH-200”.

[0209] C2-1: alcohol ethoxylate (AE(5EO)), average repeating number of oxyethylene is 5. Ethylene oxide is added to an aliphatic alcohol having 12 to 14 carbon atoms so that the average repeating number is 5. Made by THAI ETHOXYLATE, trade name: "DEHYDOL LS5 TH".

[0210] C2-2: alcohol ethoxylate (AE(7EO)), average repeating number of oxyethylene is 7. Ethylene oxide is added to an aliphatic alcohol having 12 to 14 carbon atoms so that the average repeating number is 7. Made by Lion Specialty Chemicals Co., Ltd., trade name: "LEOX CL-70".

[0211] C2-3: alcohol ethoxylate (AE(15EO)), average repeating number of oxyethylene is 15. Ethylene oxide is added to an aliphatic alcohol having 12 to 14 carbon atoms so that the average repeating number becomes 15. ETHOXYLATES MANUFACTURING PTEL T., trade name: "ECOLAT 24-15 / 85".

[0212] <(D) Component>

[0213] · D-1: monoethanolamine (MEA), manufactured by PETRONAS CHEMICALS DERIVATIVES DN BHD / INEOS NV, trade name “Monoethanolamides”.

[0214] <Optional Ingredients>

[0215] Citric acid: manufactured by Kanto Chemical Co., Ltd., trade name “Citric Acid”.

[0216] Detergent: Ethylene oxide adduct of polyethyleneimine, manufactured by BASF, trade name: "Sokalan HP20".

[0217] Protease: manufactured by Novozymes, trade name: "Progress UNO 100L".

[0218] ·Amylase: manufactured by Novozymes, trade name: “Amplify Prime 100L”.

[0219] Methylisothiazoline (MIT): manufactured by Dupont, trade name “NEOLONE 950”.

[0220] Sodium benzoate (Na benzoate): manufactured by Toagosei Co., Ltd., trade name: “Sodium benzoate”.

[0221] · 4,4'-bis(2-sulfostyryl)biphenyl disodium salt (CBS): manufactured by BASF, trade name “Tinopal CBS-X”.

[0222] · Flavor: Flavor composition A described in Tables 11 to 18 of JP-A-2002-146399.

[0223] Colorant: "LT Blue SE" manufactured by Milliken Chemical Co., Ltd.

[0224] Sulfuric acid: manufactured by Kanto Chemical Co., Ltd., trade name “3 mol / L sulfuric acid (6N)”.

[0225] · Water: Purified water.

[0226] (Examples 1 to 21, Comparative Examples 1 to 5)

[0227] According to the compositions shown in Tables 1 to 3, a portion of water and all the components except the component (A) were placed in a 500 mL beaker, and stirred using a magnetic stirrer (manufactured by MITAMURAKOGYO INC.).

[0228] Next, after adding an appropriate amount of a pH adjuster so that the pH at 30° C. exceeds 7.0, component (A) was added, and water was added so that the total amount became 100% by mass to obtain a liquid detergent composition of each example.

[0229] In addition, the compounding amount in a table|surface is a pure component conversion value. In addition, the component whose compounding amount is not described in a non-compounded table|surface.

[0230] The viscosity, composition pH, and dilution pH of the liquid detergent composition of each example were measured, and the results are shown in the table.

[0231] [Table 1]

[0232]

[0233] [Table 2]

[0234]

[0235] [Table 3]

[0236]

[0237] (Measurement method)

[0238] <Viscosity>

[0239] 60 g of the liquid cleaning composition of each example was filled into a glass bottle and adjusted to 30° C. in a thermostatic chamber. The sample solution adjusted to 30° C. was placed in a Burroughsfield viscometer (B-type viscometer) equipped with a No. 3 rotor. The rotation speed of the No. 3 rotor was set to 60 rpm, and the viscosity was measured after rotating for 60 seconds.

[0240] The obtained viscosities were classified according to the following evaluation criteria.

[0241] 《Evaluation Criteria》

[0242] ◎: 900mPa·s or more.

[0243] ○: 450 mPa·s or more and less than 900 mPa·s.

[0244] △: 300 mPa·s or more and less than 450 mPa·s.

[0245] ×: less than 300 mPa·s.

[0246] <Composition pH>

[0247] The liquid cleaning composition of each example was adjusted to 30° C. The pH of the liquid cleaning composition adjusted to 30° C. was measured using a pH meter (product name: HM-30G, manufactured by DKK-TOA CORPORATION).

[0248] <Dilution pH>

[0249] The liquid detergent composition of each example was diluted to 555 volume times (liquid detergent composition 1 mass + water 554 mass parts) with 900 mL of 2° DH hard water at 30° C. to prepare a dilution. The pH of the dilution adjusted to 30° C. was measured with a pH meter (product name: HM-30G, manufactured by DKK-TOA CORPORATION).

[0250] Classification was performed according to the following evaluation criteria.

[0251] When the pH of the dilution liquid is 8.5 or more, it is evaluated that the pH of the washing liquid is improved and excellent cleaning power can be exhibited.

[0252] 《Evaluation Criteria》

[0253] ◎: 9.0 or above.

[0254] ○: 8.5 or more and less than 9.0.

[0255] ×: less than 8.5.

[0256] As shown in Tables 1 to 2, the viscosities of Examples 1 to 21 were 300 mPa·s or more, and the pH of the compositions was 8.5 or more.

[0257] As shown in Table 3, the pH of the diluted solution of Comparative Example 1 in which the content of the component (A) was 0.2% by mass was evaluated as "x".

[0258] The viscosity evaluations of Comparative Example 2 in which the content of the component (A) was 3.5% by mass, Comparative Example 3 in which the content of the component (B) was 0.5% by mass, and Comparative Example 4 in which the content of the component (B) was 15.0% by mass were all "×".

[0259] The evaluation of the pH of the diluted solution of Comparative Example 5 in which the pH of the composition was 7.5 was "×".

[0260] From the above results, it was confirmed that the viscosity of the liquid detergent composition can be increased by applying the present invention, and excellent cleaning power can be exerted.

[0261] Industrial Applicability

[0262] According to the present invention, a liquid detergent composition for fiber products having high viscosity and excellent cleaning power can be provided.

Claims

1. A liquid detergent composition for fiber products, comprising (A) Ingredients: Carbonate, (B) Ingredients: Sulfate, and (C) Ingredients: Surfactants other than soap, Relative to the total mass of the liquid cleaning agent composition, The content of the component (A) is 0.3 to 1% by mass. The content of the component (B) is 1 to 10% by mass. The pH of the liquid cleaning composition is 8.5 or higher.

2. The liquid detergent composition for fiber products according to claim 1, wherein The mass ratio of the component (A) to the component (B) is 0.05 to 0.

5.

3. The liquid detergent composition for textile products according to claim 1 or 2, further comprising a component (D): an alkanolamine, wherein the content of the component (D) is 0.1 to 1% by mass based on the total mass of the liquid detergent composition.

4. The liquid detergent composition for fiber products according to claim 3, wherein The mass ratio of the component (A) to the component (D) is 0.1 to 4.

5. The liquid detergent composition for fiber products according to claim 1 or 2, wherein The pH of the washing liquid diluted 300 to 1000 times by volume with water is 8.5 or higher.

6. The liquid detergent composition for fiber products according to claim 1 or 2, wherein Component (A) is bicarbonate.

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