Liquid fabric softener composition

Abstract

To provide a liquid softener composition capable of holding a transparent appearance under a wide range of temperature, while imparting smooth feeling to a fiber product.SOLUTION: A compound contains the following components (A) to (D): (A) water-soluble cationic polymer, (B) polyether-modified silicone, (C) nonionic surfactant (C1) and / or quaternary ammonium salt type cationic surfactant (C2) (excluding component (B)), (D) a compound represented by general formula (D) (wherein R1 to R3 are independently a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R4 is a hydrogen atom or an acetyl group), and (E) a fragrance composition, a content of the component (D) is 0.1 to 15 mass%, and the content of the component (E) is 0.5 to 5 mass%, a mass ratio (A / B) of component (A) to component (B) is 0.5 to 100, and being transparent or translucent.SELECTED DRAWING: None

Description

[Technical Field]

[0001] This invention relates to a liquid fabric softener composition. [Background technology]

[0002] In recent years, liquid fabric softeners with a transparent or translucent appearance have been developed from an aesthetic standpoint. Specifically, transparent or translucent liquid fabric softener compositions containing a water-soluble cationic polymer and a polyether-modified silicone are known (Patent Documents 1 and 2). Other known examples include an aqueous finishing agent composition for textile products containing a cationic group-containing compound and a polyether-modified silicone (Patent Document 3), and a textile treatment agent composition for clothing that may contain 3-methoxy-3-methylbutanol as an organic solvent (Patent Document 4). [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] International Publication No. 2004 / 025017 [Patent Document 2] Japanese Patent Publication No. 2007-63741 [Patent Document 3] Japanese Patent Publication No. 2000-154476 [Patent Document 4] Japanese Patent Publication No. 2020-143257 [Overview of the project] [Problems that the invention aims to solve]

[0004] The inventors have found that in a liquid fabric softener composition containing a water-soluble cationic polymer and a polyether-modified silicone, increasing the content of the polyether-modified silicone increases the flexibility of the textile product after softening, but it also results in an oily, slimy feeling, and the smooth texture is lost. Therefore, when the content of polyether-modified silicone was reduced, it was found that cloudiness occurred in the composition at low and high temperatures, impairing its transparent appearance (reducing storage stability). Furthermore, the inventors have found that when the fragrance content in the liquid fabric softener composition is increased to improve the lingering fragrance of textile products after softening treatment, clouding occurs in the composition at low and high temperatures, impairing its transparent appearance (reducing storage stability). Therefore, the objective was set to provide a liquid fabric softener composition that imparts a smooth feel to textile products while maintaining a transparent appearance over a wide range of temperatures, even with a high fragrance content. [Means for solving the problem]

[0005] As a result of diligent research, the inventors have found that the aforementioned problems can be solved by setting the blending ratio of a water-soluble cationic polymer (component (A) of the present invention) and a polyether-modified silicone (component (B)) within a specific range, and further blending a specific type of surfactant (component (C)) and a specific amount of a specific compound (component (D)). The present invention is based on this finding.

[0006] In other words, the present invention relates to the following [1] to [6]. [1] A liquid fabric softener composition comprising the following components (A) to (D): (A) Water-soluble cationic polymer, (B) Polyether-modified silicone, (C) Nonionic surfactant (C1) and / or quaternary ammonium salt type cationic surfactant (C2) (excluding component (B)), (D) Compounds represented by general formula (D) TIFF0007888357000001.tif3291(in the formula, R 1 ~R 3 These are independently a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. R 4 (which is a hydrogen atom or an acetyl group), and (E) Fragrance composition containing, (D) component content is 0.1 to 15% by mass with respect to the total mass of the liquid softener composition, (E) component content is 0.5 to 5% by mass with respect to the total mass of the liquid softener composition, (A) component and (B) component mass ratio (A / B) is 0.5 to 100, the liquid softener composition is transparent or translucent characterized in that it is a liquid softener composition. 〔2〕The liquid softener composition according to 〔1〕 above, wherein the mass ratio (C / D) of component (C) and component (D) is 0.2 to 20. 〔3〕The liquid softener composition according to 〔1〕 above, wherein the mass ratio (C1 / C2) of component (C1) and component (C2) is 0.1 to 50. 〔4〕The liquid softener composition according to 〔1〕 above, wherein component (C) is a quaternary ammonium salt type cationic surfactant (C2) represented by the general formula (3). TIFF0007888357000002.tif2076(wherein, R 3 , R 4 , R 5 and R 6 two or three of them are independently an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms, and the rest are a linear or branched alkyl group or alkenyl group having 8 to 22 carbon atoms, Z - is a halogen ion or an alkyl sulfate ion.) 〔5〕The liquid softener composition according to 〔1〕 above, wherein the content of component (B) is 1.0 to 4.0% by mass with respect to the total mass of the liquid softener composition. 〔6〕The liquid softener composition according to 〔1〕 above, wherein component (C) is a nonionic surfactant (C1) represented by the general formula (V). R 1 -O-(C2H4O) r -H (V) (wherein, R 1 is a linear or branched alkyl group or alkenyl group having 10 to 18 carbon atoms, [[ID=...]] r is the average number of added moles and is 2 to 75.) [Effects of the Invention]

[0007] As shown in the examples described later, the liquid fabric softener composition of the present invention imparts a smooth feel to textile products while maintaining a transparent appearance over a wide range of temperatures, even with a high fragrance content (storage stability). Therefore, the present invention can provide a liquid fabric softener with added value not found in conventional products. [Modes for carrying out the invention]

[0008] [Component (A): Water-soluble cationic polymer] Component (A) is primarily added to textile products to give them a smooth feel. Furthermore, component (A) also has the effect of enhancing the adsorption of component (B) to textile products.

[0009] (A) The component is water-soluble. "Water-soluble" means that the solution obtained by adding 1 g of the test substance to 100 g of water at 25°C is colorless and transparent. Component (A) is cationic when dissolved in water. Component (A) preferably has a cationization degree of 0.1% or more (e.g., 0.1-35%), and more preferably 2.5% or more (e.g., 2.5-15%), as described later. When the cationization degree is within the above range, the adsorption of the coexisting component (B) to the textile product can be further enhanced, and the cost increase due to excessive formulation can be prevented.

[0010] (A) If component is (i) a polymer of cationic monomers, (ii) a copolymer of cationic monomers and nonionic monomers, or (iii) a nonionic polymer in which a portion is modified or substituted with cationic groups (such as cationized cellulose), the degree of cationization is defined as the value calculated by the following formula (1). Degree of cationization (%) = X × Y × 100 Equation (1) [X: Atomic weight of cationized atoms (such as nitrogen) in the cationic group of the polymer] Y: Number of moles of cationic groups contained in 1g of polymer.

[0011] (A) When component (i) is a copolymer of a cationic monomer and an anionic monomer, or (ii) a copolymer of a cationic monomer, anionic monomer and a nonionic monomer, the degree of cationization is defined as the value calculated by the following formula (2). Degree of cationization (%) = X × (YZ) × 100 Equation (2) [X: Atomic weight of cationized atoms (such as nitrogen) in the cationic group of the polymer] Y: Number of moles of cationic groups contained in 1g of polymer Z: Number of moles of anionic groups contained in 1g of polymer (Examples of anionic groups of Z include carboxyl groups and sulfonic acid groups contained in monomer units within polymer chains (for example, carboxylic acid groups in acrylic acid). However, counterions of cationic groups are not included.)

[0012] As an example, the procedure for calculating the degree of cationization of MERQUAT280 (manufactured by Lubrizol Nippon Co., Ltd.), represented by the following formula (III), which is a copolymer of a cationic monomer and an anionic monomer (mass ratio of dimethyldiallylammonium chloride to acrylic acid = 80:20; in formula (III), m:n = 65:35).

[0013] [ka]

[0014] X: 14 (atomic weight of a nitrogen atom) Y: 4.95 × 10 -3 (Calculated from the weight of cationic groups per gram: 0.8g and the molecular weight of the cationic groups) Z:2.78×10 -3 (Calculated from the weight of the anionic group per gram: 0.2g and the molecular weight of the anionic group) From equation (2), the degree of cationization (%) = 14 × (4.95 × 10 -3 -2.78 × 10 -3 ) × 100 = 3.0.

[0015] According to the calculation method described above, the degree of cationization of polymers of nonionic monomers and polymers of anionic monomers is 0.

[0016] The weight-average molecular weight of component (A), when measured by gel permeation chromatography using polyethylene glycol as a standard substance, is preferably 1,000 to 5,000,000, more preferably 3,000 to 2,000,000, and even more preferably 5,000 to 500,000. Within the aforementioned weight-average molecular weight range, the adsorption of component (B) to textile products is enhanced, and the increase in viscosity of the liquid softener composition is suppressed, resulting in excellent usability.

[0017] (A) Component can be any of the aforementioned water-soluble and cationic polymers without particular limitation, but preferably it is a water-soluble polymer having one or more cationic groups selected from amino groups, amine groups, and quaternary ammonium groups. (A) Examples of component are: MERQUAT100 (manufactured by Lubrizol Japan), Adeka Cathioace PD-50 (Adeka Corporation), Daidoll EC (manufactured by Daido Chemical Industries, Ltd.), and other polymers of dimethyldiallylammonium chloride. Dimethyldiallylammonium chloride / acrylamide copolymer such as MERQUAT550 JL5 (manufactured by Lubrizol Japan Co., Ltd.), Dimethyldiallylammonium chloride / acrylic acid copolymer such as MERQUAT280 (manufactured by Lubrizol Japan Co., Ltd.) Cationic cellulose such as Leoguard KGP (manufactured by Lion Corporation), Imidazolinium chloride / vinylpyrrolidone copolymer such as LUVIQUAT-FC905 (manufactured by BASF), Polyethyleneimine such as LUGALVAN-G15000 (manufactured by BASF), Cationic polyvinyl alcohol such as POVAL CM318 (manufactured by Kuraray Co., Ltd.) Natural polymer derivatives containing amino groups such as chitosan, Examples include copolymers with vinyl monomers having hydrophilic groups to which diethylamino methacrylate ethylene oxide or the like has been added. A particularly preferred component (A) is a water-soluble cationic polymer obtained by polymerizing a dimethyldiallylammonium salt represented by the following general formula (IV). The structure of this polymer is usually represented by the following general formula (V) or (VI). Furthermore, a single polymer chain may contain both the structural unit of general formula (V) and the structural unit of general formula (VI).

[0018] [ka] (In the formula, X - This represents any negative ion, such as chloride ions or bromide ions.

[0019] [ka]

[0020] [ka] (In each formula, c and d represent the average degree of polymerization, preferably 6 to 30,000, more preferably 20 to 6,000, and even more preferably 30 to 3,000, respectively.)

[0021] Examples of water-soluble cationic polymers obtained by polymerizing dimethyldiallylammonium salt of general formula (IV) include MERQUAT100 (manufactured by Lubrizol Nippon Co., Ltd.), Adeka Cathioace PD-50 (manufactured by Adeka Corporation), and Daidoll EC (manufactured by Daido Chemical Industries, Ltd.).

[0022] (A) The components are known substances and are readily available on the market or can be prepared.

[0023] (A) Component A may be a single type or multiple types may be used in combination.

[0024] The content of component (A) is not particularly limited as long as the purpose of formulation is achieved, but is preferably 0.1 to 10% by mass, more preferably 0.5 to 10% by mass, even more preferably 1.0 to 5.0% by mass, and particularly preferably 1.0 to 4.0% by mass, relative to the total mass of the liquid softener composition. A better formulation effect can be obtained within the above content range.

[0025] [Component (B): Polyether-modified silicone] (B) Component is added to give flexibility to textile products.

[0026] Examples of component (B) include copolymers of alkylsiloxane and polyoxyalkylene. The alkyl group constituting the alkylsiloxane preferably has 1 to 3 carbon atoms. The alkylene group constituting the polyoxyalkylene preferably has 2 to 5 carbon atoms. Preferred polyether-modified silicones include copolymers of dimethylsiloxane and polyoxyalkylene (such as polyoxyethylene, polyoxypropylene, or random or block copolymers of ethylene oxide and propylene oxide). Specific examples include compounds represented by the following general formula (I).

[0027] [ka] (In the formula, M, N, a, and b are the average degrees of polymerization, and R is hydrogen or an alkyl group.) In general formula (I), M is 10 to 10000, preferably 50 to 1000, and more preferably 100 to 300. N is 1 to 1000, preferably 5 to 300, and more preferably 5 to 100. Furthermore, it is preferable that M > N. a is 2 to 100, preferably 5 to 50, and more preferably 5 to 20. b is between 0 and 50, preferably between 0 and 10. R is preferably hydrogen or an alkyl group having 1 to 4 carbon atoms, more preferably hydrogen. Polyether-modified silicones of general formula (I) can generally be produced by an addition reaction between an organohydrogenpolysiloxane having a Si-H group and a polyoxyalkylene alkyl ether having a carbon-carbon double bond at its terminus, such as polyoxyalkylene allyl ether.

[0028] A preferred polyether-modified silicone is a linear polysiloxane-polyoxyalkylene block copolymer represented by the following general formula (II). [ka] (In the formula, A, B, h, and i are the average degrees of polymerization, R is an alkylene group, and R' is hydrogen or an alkyl group.) In general formula (II), A is between 5 and 10000. B is between 2 and 10000. h is between 2 and 100. i ranges from 0 to 50. R is preferably an alkylene group having 1 to 5 carbon atoms. R' is preferably hydrogen or an alkyl group having 1 to 4 carbon atoms. The weight-average molecular weight of the copolymer of general formula (II) is preferably 15,000 to 100,000,000. Copolymers of general formula (II) can be produced by reacting a polyoxyalkylene compound having a reactive end group with a dihydrocarbylsiloxane having an end group that reacts with the reactive end group of the compound.

[0029] Specific examples of polyether-modified silicones include: CF1188N, BY22-029, SH3772M, SH3775M, SH3748, SH3749, SF8410, SH8700, BY22-008, SF8421, SILWET L-7001, SILWET L-7002, SILWET L-7602, SILWET L-7604, SILWET FZ-2104, SILWET FZ-2120, SILWET FZ-2161, SILWET FZ-2162, SILWET FZ-2164, SILWET FZ-2171, SILWET FZ2222, ABN SILWET FZ-F1-009-01, ABN SILWET FZ-F1-009-02, ABN SILWET FZ-F1-009-03, ABN SILWET FZ-F1-009-05, ABN SILWET FZ-F1-009-09, ABN SILWET FZ-F1-009-11, ABN SILWET FZ-F1-009-13, ABN SILWET FZ-F1-009-54, ABN SILWET FZ-2222, X-20-8010N, KF352A, KF6008, KF615A, KF6016, KF6017, manufactured by Shin-Etsu Chemical Co., Ltd., Examples include TSF4450 and TSF4452 manufactured by GE Toshiba Silicone Co., Ltd.

[0030] (B) Component is a known substance and is readily available on the market or can be prepared.

[0031] (B) Component may be a single type or multiple types may be used in combination.

[0032] The content of component (B) is not particularly limited as long as the purpose of formulation is achieved, but is preferably 0.1 to 10% by mass, more preferably 0.4 to 8.0% by mass, even more preferably 1.0 to 4.0% by mass, and particularly preferably 1.0 to 3.0% by mass, relative to the total mass of the liquid softener composition. A better formulation effect can be obtained within the above content range.

[0033] [Component (C): Nonionic surfactant (C1) and / or quaternary ammonium salt type cationic surfactant (C2) (excluding component (B))] (C) Component is included to maintain the transparent appearance of the liquid fabric softener composition (to provide storage stability). Component (C) is (C1) a nonionic surfactant and / or (C2) a quaternary ammonium salt type cationic surfactant. However, the aforementioned polyether-modified silicone (component (B)) is excluded from component (C).

[0034] [(C1) Component: Nonionic surfactant] Examples of component (C1) include polyoxyalkylene alkyl ethers having one or more alkyl or alkenyl groups with 8 to 20 carbon atoms. The average number of moles of oxyalkylene groups added is 1 to 100, preferably 2 to 75. The preferred (C1) component is a compound represented by the following general formula (IV). R 1 -T-[(R 2 O) p -H] q (IV) In formula (IV), R 1 This is a linear or branched alkyl or alkenyl group having 10 to 18 carbon atoms, preferably 12 to 18 carbon atoms. R 2 This is an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group. p is the average number of moles added, and is 2 to 75, preferably 5 to 30, and particularly preferably 5 to 20. T is -O-, -N-, -NH-, -N(C2H4OH)-, -CON-, -CONH-, or CON(C2H4OH)-. If T is -O-, -NH-, -N(C2H4OH)-, -CONH-, or -CON(C2H4OH)-, then q is 1. If T is -N- or -CON-, then q is 2.

[0035] Specific examples of compounds of general formula (IV) include compounds represented by the following general formulas (V) or (VI). R 1 -O-(C2H4O) r -H (V) In formula (V), R 1 This is as defined in equation (IV). r is the average number of moles added, which is 2 to 75, preferably 5 to 30. R 1 -O-(C2H4O) s (C3H6O) t -H (VI) In formula (VI), R 1 This is as defined in equation (IV). s is the average number of moles added, which is 2 to 40, preferably 5 to 30. t is the average number of moles added, which is 1 to 20, preferably 1 to 10. The addition of (C2H4O) and (C3H6O) can be random or block-based.

[0036] (C1) Component is a known substance and is readily available on the market or can be prepared.

[0037] (C1) Component may be a single type or multiple types may be used in combination.

[0038] The content of component (C1) is not particularly limited as long as the purpose of formulation is achieved, but is preferably 0.1 to 10% by mass, more preferably 0.5 to 7.0% by mass, even more preferably 1.0 to 6.0% by mass, and particularly preferably 2.0 to 4.0% by mass, relative to the total mass of the liquid fabric softener composition. Within the above content range, a better formulation effect can be obtained while suppressing the decrease in handling properties due to the increase in viscosity of the liquid fabric softener composition.

[0039] [(C2) component: quaternary ammonium salt type cationic surfactant] Examples of component (C2) include quaternary ammonium salt type cationic surfactants represented by the following general formulas (3) or (4).

[0040] TIFF0007888357000009.tif2076

[0041] In formula (3), R 3 , R 4 , R 5 and R 6 Two or three of these are independently C1-C3 alkyl groups or hydroxyalkyl groups, preferably C1 alkyl groups. The remaining group consists of a linear or branched alkyl or alkenyl group having 8 to 22 carbon atoms, preferably 8 to 18 carbon atoms. Z - is a halogen ion (e.g., Cl - ) or alkyl sulfate ions (e.g., methyl sulfate ions).

[0042] TIFF0007888357000010.tif2076

[0043] In formula (4), R 7 and R 8 These are independently alkyl groups or hydroxyalkyl groups having 1 to 3 carbon atoms. R 9 This is a linear or branched alkyl or alkenyl group having 8 to 22 carbon atoms, preferably 8 to 18 carbon atoms. R 10 This is an alkylene group having 1 to 3 carbon atoms. Z - is a halogen ion (e.g., Cl - ) or alkyl sulfate ions (e.g., methyl sulfate ions).

[0044] A preferred example of component (C2) is: Cetyltrimethylammonium chloride (e.g., GenaminCTAC, manufactured by Clariant), Dodecyltrimethylammonium chloride (manufactured by Lion Specialty Chemicals Co., Ltd., Lipocard 12-37W), Tetradecyltrimethylammonium chloride, Hexadecyltrimethylammonium chloride (for example, "Arcard 16-50" manufactured by Lion Akzo Corporation), Octadecyltrimethylammonium chloride (for example, "Arcard T-800" manufactured by Lion Akzo Corporation), Coconut alkyldi(hydroxyethyl)methylammonium chloride (for example, "Esocard C / 12" manufactured by Lion Akzo Corporation), Didecyldimethylammonium chloride (for example, "Arcard 210-80E" manufactured by Lion Akzo Corporation), Dialkyldimethylammonium chloride (for example, "Arcard 2C-75" manufactured by Lion Akzo Corporation), and Examples include benzalkonium chloride (for instance, "Arcard CB-50" manufactured by Lion Akzo Corporation). Among these, cetyltrimethylammonium chloride, dodecyltrimethylammonium chloride, tetradecyltrimethylammonium chloride, hexadecyltrimethylammonium chloride, octadecyltrimethylammonium chloride, didecyldimethylammonium chloride, and benzalkonium chloride are preferred.

[0045] (C2) Component is a known substance and is readily available on the market or can be prepared.

[0046] The (C2) component may be a single type or multiple types may be used in combination.

[0047] The content of component (C2) is not particularly limited as long as the purpose of formulation is achieved, but is preferably 0.1 to 10% by mass, more preferably 0.5 to 5.0% by mass, even more preferably 0.5 to 2.5% by mass, and particularly preferably 0.7 to 1.5% by mass, relative to the total mass of the liquid softener composition. A better formulation effect can be obtained within the above content range.

[0048] When both (C1) and (C2) are used, the content of component (C) (the sum of (C1) and (C2)) is not particularly limited as long as the purpose of the formulation is achieved, but is preferably 1 to 20% by mass, more preferably 2 to 10% by mass, even more preferably 3 to 8% by mass, and particularly preferably 3 to 5% by mass, relative to the total mass of the liquid softener composition. A better formulation effect can be obtained within the above content range.

[0049] [(D) component] (D) Component is added to maintain the transparent appearance of the liquid fabric softener composition (to provide storage stability). Component (D) is given by the following general formula (D): TIFF0007888357000011.tif3291 (in the formula, R 1 ~R 3 These are independently a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. R 4 It is a compound represented by a hydrogen atom or an acetyl group.

[0050] In formula (D), R 1 ~R 3 It is preferable that all of them are hydrogen atoms, or that one is an alkyl group and the other two are hydrogen atoms. That is, R 1 ~R 3 Preferably, two or more of them are hydrogen atoms. 1 ~R 3 If two or more of the atoms are hydrogen atoms, a high blending effect can be obtained. R 1 ~R 3 If any of the elements is an alkyl group, its carbon number is preferably 1 to 2, and more preferably 1. A high blending effect can be obtained when the carbon number is within the aforementioned range. R 4 A hydrogen atom is preferred.

[0051] (D) component is, R in general formula (D) 4Those in which the atom is a hydrogen atom, for example, 3-methoxybutanol, 3-methoxy-3-methylbutanol, 3-methoxy-3-ethylbutanol, 3-methoxy-3-propylbutanol, 3-methoxy-2-methylbutanol, 3-methoxy-2-ethylbutanol, 3-methoxy-2-propylbutanol, 3-methoxy-1-methylbutanol, 3-methoxy-1-ethylbutanol, 3-methoxy-1-propylbutanol, etc. R in general formula (D) 4 Examples of acetates in which the group is an acetyl group include 3-methoxybutyl acetate, 3-methoxy-3-methylbutyl acetate, 3-methoxy-3-ethylbutyl acetate, 3-methoxy-3-propylbutyl acetate, 3-methoxy-2-methylbutyl acetate, 3-methoxy-2-ethylbutyl acetate, 3-methoxy-2-propylbutyl acetate, 3-methoxy-1-methylbutyl acetate, 3-methoxy-1-ethylbutyl acetate, and 3-methoxy-1-propylbutyl acetate. Among these, 3-methoxybutanol, 3-methoxy-3-methylbutanol, 3-methoxy-2-methylbutanol, 3-methoxy-1-methylbutanol, and 3-methoxy-3-methylbutyl acetate are preferred, with 3-methoxy-3-methylbutanol being more preferred.

[0052] (D) Component is a known substance and is readily available on the market or can be prepared.

[0053] (D) Component may be a single type or multiple types may be used in combination.

[0054] The content of component (D) is 0.1 to 15% by mass, preferably 1 to 10% by mass, and more preferably 3 to 8% by mass, relative to the total mass of the liquid fabric softener composition. Within this content range, the purpose of formulation can be achieved without affecting the fragrance of component (E) (fragrance composition), which will be described later.

[0055] [(E) Component: Fragrance composition] (E) Component is added to scent the liquid fabric softener composition itself and / or to scent the textile product after it has been treated with the composition. (E) As for the fragrance component, any substance known in the field of liquid fabric softeners can be used without particular restriction. Fragrances may be used in a single type or in combination of multiple types. Examples of fragrances include aldehydes, phenols, alcohols, ethers, esters, hydrocarbons, ketones, lactones, musks, fragrances with terpene skeletons, natural fragrances, and animal-derived fragrances. Specific examples of each fragrance are as follows. Examples of aldehydes include undecylenaldehyde, laurylaldehyde, aldehyde C-12MNA, miracaldehyde, α-amyl cinnamicaldehyde, cyclamenaldehyde, citral, citronellal, ethyl vanillin, heliotropin, anisaldehyde, α-hexyl cinnamicaldehyde, octanal, ligstral, lilial, liral, tripral, vanillin, and helional. Examples of phenols include eugenol and isoeugenol. Examples of alcohols include citronellol, dihydromyrcenol, dihydrolinalool, geraniol, linalool, nerol, sandalol, santarex, terpineol, tetrahydrolinalool, menthol, borneol, 1-decanal, bacdanol, and phenylethyl alcohol. Examples of ethers include Sedlumber, Grisalva, methyl eugenol, and methyl isoeugenol. Examples of esters include cis-3-hexenyl acetate, cis-3-hexenyl propionate, cis-3-hexenyl salicylate, p-cresyl acetate, pt-butylcyclohexyl acetate, amyl acetate, methyl dihydrojasmonate, amyl salicylate, benzyl salicylate, benzyl benzoate, benzyl acetate, cedyl acetate, citronellyl acetate, and decahydro-β-naphthyl acetate. Examples include acetate, dimethylbenzylcarbinyl acetate, erica propionate, ethyl acetate, erica acetate, geranyl acetate, geranyl formate, hedione, linalyl acetate, β-phenylethyl acetate, hexyl salicylate, styraryl acetate, terpinyl acetate, vetiveryl acetate, OT-butylcyclohexyl acetate, manzanate, and allyl heptanoate. Examples of hydrocarbons include limonene (especially d-limonene), α-pinene, β-pinene, myrcene, camphene, and terpinolene. Examples of ketones include α-ionone, β-ionone, methyl-β-naphthylketone, α-damascone, β-damascone, δ-damascone, damascenone, cis-jasmone, methylionone, allylionone, cashmeran, dihydrojasmone, isoesuper, beltfix, isolonediforanone, coavon, carvone, rosephenone, raspberry ketone, dynascone, and maltol. Examples of lactones include γ-decalactone, γ-undecalactone, γ-nonalactone, γ-dodecalactone, coumarin, and ambroxan. Examples of musk compounds include cyclopentadecanolide, ethylene brassirate, galaxolide, musk ketone, tonalide, tonalide, and nitromusks. Examples of fragrances containing a terpene skeleton include geraniol, nerol, linalool, citral, citronellol, menthol, mint, citronellal, myrcene, α-pinene, β-pinene, limonene, terpinellol, carvone, ionone (e.g., β-ionone), camphene, and borneol. Examples of natural fragrances include essential oils such as orange oil, lemon oil, lime oil, petitgrain oil, yuzu oil, neroli oil, bergamot oil, lavender oil, lavandin oil, abies oil, anise oil, bay oil, rose oil, ylang-ylang oil, citronella oil, geranium oil, peppermint oil, spearmint oil, eucalyptus oil, lemongrass oil, patchouli oil, jasmine oil, rose oil, cedar oil, vetiver oil, galbanum oil, oakmoss oil, pine oil, camphor oil, sandalwood oil, fragrant camphor oil, turpentine oil, clove oil, clove leaf oil, cassia oil, nutmeg oil, cananga oil, and thyme oil. Examples of animal-derived fragrances include musk, spirit cat incense, sea lion incense, and ambergris.

[0056] Component (E) preferably contains aldehydes, ketones, or hydrocarbons as fragrances, and more preferably the following fragrances. [Aldehydes] One or more substances selected from the group consisting of undecylenaldehyde, laurylaldehyde, aldehyde C-12MNA, miracaldehyde, α-amyl cinnamicaldehyde, cyclamenaldehyde, citral, citronellal, heliotropin, anisaldehyde, α-hexyl cinnamicaldehyde, octanal, ligstral, lilial, liral, tripral, vanillin, ethyl vanillin, and helional. [Ketones] One or more substances selected from the group consisting of α-ionone, β-ionone, methyl-β-naphthylketone, α-damascone, β-damascone, δ-damascone, cis-jasmone, methylionone (methyl ionone), allylionone (allyl ionone), cashmeran, dihydrojasmone, isoesuper, beltfix, isolonediphoranone, coavon, rosephenone, raspberry ketone, dynascone, and maltol. [Hydroxides] One or more substances selected from the group consisting of limonene, α-pinene, β-pinene, myrcene, and terpinolene.

[0057] (E) When component contains aldehydes, ketones, and hydrocarbons as fragrance components, the total content of these fragrance components is preferably 10% by mass or more, and more preferably 20% by mass or more, based on the total mass of the fragrance composition, from the viewpoint of fragrance release.

[0058] (E) Component may contain fragrance solvents commonly used in liquid fabric softeners. Examples of fragrance solvents include acetin (triacetin), MMB acetate (3-methoxy-3-methylbutyl acetate), sucrose diacetate hexisobutyrate, ethylene glycol dibutyrate, hexylene glycol, dibutyl sebacate, Deltil Extra (isopropyl myristate), methyl carbitol (diethylene glycol monomethyl ether), carbitol (diethylene glycol monoethyl ether), TEG (triethylene glycol), benzyl benzoate (BB), propylene glycol, diethyl phthalate, tripropylene glycol, avorin (dimethyl phthalate), Deltil Prime (isopropyl palmitate), dipropylene glycol (DPG), Examples include farnesene, dioctyl adipate, tributylin (glyceryl tributanoate), hydrolyte-5 (1,2-pentanediol), propylene glycol diacetate, cetyl acetate (hexadecyl acetate), ethyl abietate, avalin (methyl abietate), Citroflex A-2 (acetyl triethyl citrate), Citroflex A-4 (tributyl acetyl citrate), Citroflex No. 2 (triethyl citrate), Citroflex No. 4 (tributyl citrate), Durafix (methyl dihydroabietate), MITD (isotridecyl myristate), polylimonene (limonene polymer), and 1,3-butylene glycol. The content of the fragrance solvent is, for example, 0.1 to 30% by mass, preferably 1 to 20% by mass, relative to the total mass of the fragrance composition.

[0059] The content of component (E) is 0.5 to 5% by mass, preferably 0.8 to 3.0% by mass, and more preferably 0.8 to 2.0% by mass, based on the total mass of the liquid fabric softener composition. Within this content range, the purpose of incorporating component (E) can be achieved while maintaining the transparent appearance of the liquid fabric softener composition.

[0060] [Mass ratio of component (A) to component (B)] The mass ratio (A / B) of component (A) to component (B) is 0.5 to 100, preferably 1.0 to 50, more preferably 1.0 to 25, even more preferably 1.0 to 10, and particularly preferably 1.0 to 5. Within the aforementioned mass ratio range, flexibility can be imparted to textile products without creating an oily, slimy feeling.

[0061] [Mass ratio of component (C) to component (D)] The mass ratio (C / D) of component (C) to component (D) is preferably 0.2 to 20, more preferably 0.2 to 10, even more preferably 0.2 to 5, and particularly preferably 0.3 to 5. Within the aforementioned mass ratio range, the ability to maintain the transparent appearance (storage stability) of the liquid softener composition, especially at high and low temperatures, can be further enhanced.

[0062] [Mass ratio of component (C1) to component (C2)] The mass ratio (C1 / C2) of component (C1) to component (C2) is preferably 0.1 to 50, more preferably 0.2 to 25, even more preferably 0.3 to 10, and particularly preferably 1.0 to 10. Within the aforementioned mass ratio range, the ability to maintain the transparent appearance (storage stability) of the liquid softener composition, especially at low temperatures, can be further enhanced.

[0063] [Transparency of liquid fabric softener compositions] The liquid fabric softener composition is transparent or translucent. Transparent means that when the liquid fabric softener composition is placed in a measuring cell (a glass cell with a path length of 10 mm) and deionized water is placed in a control cell, the light transmittance at a wavelength of 660 nm is 95% or more. Translucent means that the transmittance is 30% or more and less than 95%.

[0064] [Optional ingredients] The following optional ingredients may be added, provided that they do not impair the combined effects of the essential ingredients (A) through (E).

[0065] [Semi-polar surfactant] Semipolar surfactants are added to further enhance the retention of the transparent appearance (storage stability) of the liquid fabric softener composition. Examples of semipolar surfactants include compounds represented by the following general formulas (C2-i) or (C2-ii). [ka] (In each formula, R4 is A linear or branched alkyl group having 8 to 18 carbon atoms, substituted or unsubstituted, or A linear or branched substituted or unsubstituted alkenyl group having 8 to 18 carbon atoms, R5 and R6 are each independently an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms. R7 is an alkylene group having 1 to 5 carbon atoms. Y is -CONR8-, -NR8CO-, -COO-, or -OCO-, R8 is either a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. The alkyl and alkenyl groups of R4 may optionally contain substituents such as hydroxyl groups and hydroxyalkyl groups. The number of carbon atoms in the alkyl and alkenyl groups of R4 is preferably 10 to 16, more preferably 12 to 14, and even more preferably 12. R5 and R6 are preferably a methyl group and an ethyl group. R7 is preferably an alkylene group having 1 to 3 carbon atoms. Y is preferably -CONH- and -COO-, and more preferably -CONH-.

[0066] Examples of compounds with the general formula (C2-i) include alkyl or alkenyldimethylamine oxides. Examples of compounds with general formula (C2-ii) include alkyl or alkenylamidopropyldimethylamine oxides.

[0067] As semi-polar surfactants, Alkyl or alkenyldimethylamine oxide, or alkyl or alkenylamidopropyldimethylamine oxide, Alkyl or alkenyldimethylamine oxide is more preferred. Alkyldimethylamine oxide is particularly preferred. Among these, alkyldimethylamine oxides in which R4 is an alkyl group having 12 carbon atoms in the general formula (C2-i) and R5 and R6 are both methyl groups are preferred.

[0068] Semipolar surfactants are known substances and are readily available on the market or can be prepared.

[0069] A single type of semipolar surfactant may be used, or multiple types may be used in combination. When using a mixture containing two or more compounds represented by the general formula (C2-i) and / or (C2-ii), it is preferable that the number of carbon atoms in R4 of each compound is the same, but they may be different. An example of a configuration in which the number of carbon atoms in R4 is different is a compound having a mixed alkyl (or alkenyl) chain length derived from coconut oil or palm kernel oil.

[0070] The content of the semipolar surfactant is not particularly limited as long as the purpose of formulation is achieved, but is preferably 0.1 to 5% by mass, and more preferably 0.5 to 3% by mass, based on the total mass of the liquid softener composition.

[0071] [Polyoxyalkyleneamines, their salts, or their quaternary compounds] Polyoxyalkyleneamines, their salts, or quaternary derivatives thereof (hereinafter also referred to as "polyoxyalkyleneamines, etc.") are added to further enhance the retention of the transparent appearance (storage stability) of the liquid fabric softener composition. Examples of polyoxyalkyleneamines include compounds represented by the following general formulas (C3-i) or (C3-ii), with the compound represented by (C3-ii) being preferred. [ka] (In the formula, R9 is an alkyl group having 8 to 20 carbon atoms, an alkenyl group having 8 to 20 carbon atoms, or an alkanoyl group having 8 to 20 carbon atoms. A 1 O and A 2 Each O is independently an oxyalkylene group having 2 to 4 carbon atoms. a and b are integers satisfying a + b = 1 to 100. The number of carbon atoms in the hydrocarbon group of R9 is preferably 8 to 18, more preferably 10 to 18, even more preferably 10 to 14, and particularly preferably 12. A 1 O can be either the same or different. Two or more types of A 1 If O is included, each A 1 O may be added in either a block-like or random manner. A 2 O can be either the same or different. Two or more types of A 2 If O is included, each A 2 O may be added in either a block-like or random manner. [ka] (In the formula, R 10 These are an alkyl group having 8 to 20 carbon atoms, an alkenyl group having 8 to 20 carbon atoms, or an alkanoyl group having 8 to 20 carbon atoms. R 11 is a hydrogen atom, a methyl group, an ethyl group, a benzyl group, or a hydroxyethyl group. m is an integer between 1 and 4. X m- This is an anion of an inorganic or organic acid with an m-valence. A 3 O and A 4 Each O is independently an oxyalkylene group having 2 to 4 carbon atoms. c and d are numbers that satisfy c + d = 1 to 100. However, R 10 R is an alkyl group having 8 to 16 carbon atoms or an alkenyl group having 8 to 16 carbon atoms. 11 is a methyl group, A 3 O and A4 (Excluding compounds in which O is an oxyethylene group, c is 1, and d is 1.) R 10 The number of carbon atoms in the hydrocarbon group is preferably 8 to 18, more preferably 10 to 18, even more preferably 10 to 14, and particularly preferably 12. R 11 The group is preferably a methyl group. X m- This is, for example, a methyl sulfate anion, a bromide ion, or a chloride ion, and preferably a chloride ion. A 3 O can be either the same or different. Two or more types of A 3 If O is included, each A 3 O may be added in either a block-like or random manner. A 4 O can be either the same or different. Two or more types of A 4 If O is included, each A 4 O may be added in either a block-like or random manner.

[0072] Examples of compounds represented by the general formula (C3-i) include: dodecylamine ethylene oxide 2 molar adduct, dodecylamine ethylene oxide 5 molar adduct, dodecylamine ethylene oxide 15 molar adduct, dodecylamine ethylene oxide 20 molar adduct, coconut alkyl (alkenyl)amine ethylene oxide 2 molar adduct, coconut alkyl (alkenyl)amine ethylene oxide 5 molar adduct, coconut alkyl (alkenyl)amine ethylene oxide 15 molar adduct, coconut alkyl (alkenyl)amine ethylene oxide 20 molar adduct, tetradecylamine ethylene oxide 30 molar adduct, hexadecylamine ethylene oxide 40 molar adduct, taloalkylamine ethylene oxide 2 molar adduct, taloalkylamine ethylene oxide 5 molar adduct, taloalkyl (alkenyl)amine ethylene oxide Examples include 10 mole hydroxide adduct, 2 mole hydrogenated tulosealkylamine ethylene oxide adduct, 2 mole oleylamine ethylene oxide adduct, 7 mole oleylamine ethylene oxide adduct, 10 mole oleylamine ethylene oxide adduct, 30 mole hexadecylamine ethylene oxide / 5 mole propylene oxide random adduct, 25 mole decylamine ethylene oxide / 5 mole propylene oxide block adduct, 22 mole hexadecylamine ethylene oxide / 3 mole propylene oxide random adduct, 27 mole hexadecylamine ethylene oxide / 5 mole propylene oxide random adduct, 40 mole hexadecylamine ethylene oxide / 10 mole propylene oxide random adduct, and 24 mole decylamine ethylene oxide / 3 mole propylene oxide block adduct.

[0073] Examples of compounds represented by the general formula (C3-ii) include dodecylmethylammonium ethylene oxide 15 molar adduct hydrochloride, dodecylmethylammonium ethylene oxide 20 molar adduct hydrochloride, coconut alkyl (alkenyl) methylammonium ethylene oxide 15 molar adduct hydrochloride, coconut alkyl (alkenyl) methylammonium ethylene oxide 20 molar adduct hydrochloride, tetradecylmethylammonium ethylene oxide 30 molar adduct methyl sulfate, tetradecylammonium ethylene oxide 30 molar adduct citrate, hexadecylethylammonium ethylene oxide 40 molar adduct ethyl sulfate, octadecylmethylammonium ethylene oxide 25 molar adduct hydrochloride, oleylmethylammonium ethylene oxide 2 molar adduct hydrochloride, and hexadecylethylammonium ethylene oxide 30 molar / propylene oxide 5 molar random adduct methyl sulfate.

[0074] Polyoxyalkyleneamines and the like are well-known substances and are readily available on the market or can be prepared.

[0075] Polyoxyalkyleneamines may be used individually or in combination of multiple types.

[0076] The content of polyoxyalkyleneamines, etc., is not particularly limited as long as the purpose of formulation is achieved, but is preferably 0.1 to 5% by mass, and more preferably 0.5 to 3% by mass, based on the total mass of the liquid softener composition.

[0077] [Amphoteric surfactants] Amphoteric surfactants are added to further enhance the retention of the transparent appearance (storage stability) of the liquid fabric softener composition. Examples of amphoteric surfactants include betaine, N-alkyl amino acids, N-alkenyl amino acids, and their salts. Examples of betaines include alkyl betaines, amidobetaines, amidopropyl betaines, carbobetaines, sulfobetaines, amidosulfobetaines, imidazolinium betaines, phosphobetaines, and aminopropionates. N-alkyl amino acids or N-alkenyl amino acids have a structure in which an alkyl group or alkenyl group is bonded to a nitrogen atom, and one or two "-R-COOH" groups (wherein R represents a divalent hydrocarbon group, preferably an alkylene group, and particularly preferably having 1 to 2 carbon atoms) are further bonded to it. In compounds with one "-R-COOH" group, a hydrogen atom is further bonded to the nitrogen atom. Compounds with one "-R-COOH" group are called mono-isomers, and those with two are called di-isomers; both can be used in this invention. The alkyl and alkenyl groups constituting N-alkyl amino acids and N-alkenyl amino acids may be linear or branched, and may be substituted or unsubstituted. The alkyl group preferably has 8 to 18 carbon atoms, and the alkenyl group preferably has 8 to 18 carbon atoms. The N-alkyl amino acids, N-alkenyl amino acids, and their salts are preferably sodium lauaminopropionate and sodium cocaminopropionate, and more preferably sodium lauaminopropionate.

[0078] Preferred amphoteric surfactants are, Alkyl (and / or alkenyl)aminoacetic acid betaine, Alkyl (and / or alkenyl)dimethylaminoacetic acid betaine, and Alkyl (and / or alkenyl)amidopropyl betaine The group is selected from the group consisting of the following. The alkyl and / or alkenyl groups constituting the betaine are substituted or unsubstituted alkyl and / or alkenyl groups having 8 to 18 carbon atoms. A more preferred amphoteric surfactant is, Lauryldimethylaminoacetic acid betaine, Lauric acid amidopropyl betaine, and It is coconut oil fatty acid amidopropyl betaine, Particularly preferred amphoteric surfactants are, It is lauryldimethylaminoacetic acid betaine.

[0079] Amphoteric surfactants are well-known substances and are readily available on the market or can be prepared. Examples of commercially available products include: Energy Call L-30B, Energy Call C-40H, Energy Call DP-30, and other products manufactured by Lion Corporation; Lion Akzo Corporation's Amforac L-18 and; Sanyo Chemical Industries' products include Rebon LD-36, Rebon 2000L, Rebon HC-30W, Rebon 101-H, Rebon APL, and; Examples include softazoline LPB, softazoline CPB, softazoline PKPB, softazoline LMEB, and softazoline LSB, all manufactured by Kawaken Fine Chemicals Co., Ltd.

[0080] Amphoteric surfactants may be used individually or in combination of multiple types.

[0081] The content of the amphoteric surfactant is not particularly limited as long as the purpose of formulation is achieved, but is preferably 0.1 to 5% by mass, and more preferably 0.5 to 3% by mass, based on the total mass of the liquid softener composition.

[0082] [Antifoaming agent] Antifoaming agents are added to improve the metering accuracy of fabric softener by suppressing foaming. Examples of defoaming agents include silicone-based defoaming agents, alcohol-based defoaming agents, ester-based defoaming agents, mineral oil-based defoaming agents, vegetable oil-based defoaming agents, and synthetic oil-based defoaming agents, with silicone-based or alcohol-based defoaming agents being preferred. Examples of silicone-based defoaming agents include oil-type defoaming agents, compound-type defoaming agents, self-emulsifying defoaming agents, emulsion-type defoaming agents, powder-type defoaming agents, and solid-type defoaming agents. Among these, self-emulsifying defoaming agents and emulsion-type defoaming agents are preferred, and emulsion-type defoaming agents are even more preferred.

[0083] Antifoaming agents are well-known substances and are readily available on the market or can be prepared. Examples of commercially available products include: Dow Toray Industries Ltd.'s FS Antifoam series includes DKQ1-071, DKQ1-1208, DKQ1-1086, 544, 001, 80, 81, 026A, 545, 013B, DK Q1-072, AFE, BE, DB-31, DB-110N, H-10, 025, EPL, F-18, F-20, F-51, CE, 90, 91, 92, 1122, DK Q1-1089, DK Q1-1056, DK Q1-1014, DK Q1-1074, and KS496A, KS502, KS506, KS508, KS530, KS531, KS536, KS537, KS538, KM73, KM73A, KM73B, KM73E, KM72, KM72A, KM72F, KM70, KM71, KM75, KM80, KM83, KM83A, KM85, KM87A, KM89, KM90, KM93, KM68-1F, KM68-2F, manufactured by Shin-Etsu Chemical Co., Ltd. Q2-3183A, BY28-503, SD5591, SH7PA, SH5503, SH5510, SM5513, SH5561, SH5507, BY22-517, SM5511, SM5512, SM5515, SM5517, SM5571, SM5572F, SM5573 and other products manufactured by Dow Toray Industries, Inc. Examples of products manufactured by Momentive Performance Materials Japan LLC include YSA6406, TSA780, TSA7341, TSA7343, TSA739, TSA732, TSA732A, TSA772, TSA730, TSA770, TSA775, TSA776, YMA6509, TSA737, TSA737B, TSA737S, TSA737F, and TSA737K.

[0084] A single type of defoaming agent may be used, or multiple types may be used in combination.

[0085] The content of the defoaming agent is not particularly limited as long as the purpose of formulation is achieved, but is preferably 0.001 to 0.1% by mass, and more preferably 0.005 to 0.02% by mass, relative to the total mass of the liquid softener composition.

[0086] [(D) Water-miscible solvents other than component (additional water-miscible solvents)] (D) Water-miscible solvents other than component (hereinafter also referred to as "additional water-miscible solvents") are added to improve the fluidity of the liquid softener composition. Examples of additional water-miscible organic solvents include monohydric alcohols having 2 to 4 carbon atoms, polyhydric alcohols having 2 to 4 carbon atoms, and glycol ether solvents represented by the following general formula (I). R 1 -(OR2) w OH (I) (In the formula, R 1 These are hydrogen, an alkyl group having 1 to 6 carbon atoms, or a phenyl group. R 2 This is an alkylene group having 2 to 4 carbon atoms. w represents the average number of moles added, ranging from 1 to 30,000.

[0087] Examples of monohydric alcohols with 2 to 4 carbon atoms include ethanol, 1-propanol, 2-propanol, and 1-butanol. Examples of polyhydric alcohols with 2 to 4 carbon atoms include ethylene glycol, propylene glycol, butylene glycol, and glycerin. Examples of glycol ether solvents represented by formula (I) include ethylene glycol monobutyl ether, ethylene glycol monohexyl ether, ethylene glycol monophenyl ether, propylene glycol monophenyl ether, diethylene glycol monomethyl ether, and diethylene glycol monobutyl ether (R 1 is an alkyl group having 4 carbon atoms, and R 2 Examples include an alkylene group with 2 carbon atoms and w being 2. R in equation (I) 1Examples of compounds in which the element is hydrogen include polyethylene glycol. Preferably, the polyethylene glycol has a w of 5 or more in formula (I). The mass-average molecular weight of polyethylene glycol is preferably 200 to 1,320,000, more preferably 200 to 5,000, even more preferably 200 to 2,000, and particularly preferably 200 to 1,000. The mass-average molecular weight of polyethylene glycol is calculated based on a calibration curve for polyethylene glycol, using GPC with methanol as the solvent. Among these, polyethylene glycol with a mass-average molecular weight of 1,000 (w of 22 to 24) is particularly preferred. As additional water-miscible solvents, ethanol, ethylene glycol, propylene glycol, and diethylene glycol monobutyl ether are preferred due to their excellent fluidity, mild odor, and ease of obtaining raw materials, with ethanol, diethylene glycol monobutyl ether, and ethylene glycol being more preferred.

[0088] The additional water-miscible solvent may be a single type or a combination of multiple types.

[0089] The content of the additional water-miscible solvent is not particularly limited as long as the formulation objective is achieved, but is preferably 0.5 to 10% by mass, more preferably 1 to 5% by mass, based on the total mass of the liquid softener composition.

[0090] [(D) Mass ratio of component to additional water-miscible solvent] The mass ratio of component (D) to the additional water-miscible solvent (D / additional water-miscible solvent) is preferably 0.05 to 40, more preferably 0.2 to 20, even more preferably 0.2 to 10, and particularly preferably 0.5 to 10. Within the aforementioned mass ratio range, the purpose of the formulation can be achieved without affecting the fragrance development of component (E) (fragrance composition) as described above.

[0091] [Antioxidant] As antioxidants, any substance known in the field of liquid fabric softeners can be used without particular restriction. Examples of antioxidants include 2,6-di-t-dibutyl-4-hydroxytoluene (BHT), t-butyl-p-hydroxyanisole (BHA), p-methoxyphenol, β-naphthol, phenyl-α-naphthylamine, tetramethyldiaminodiphenylmethane, γ-oryzanol, vitamin E (α-tocopherol, β-tocopherol, γ-tocopherol, δ-tocopherol), 2,2'-ethylidenebis(4,6-di-t-butylphenol), tris(tetramethylhydroxypiperidinol)·1 / 3 citrate, bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate, quercetin, and 4,4'-bis(α,α-dimethylbenzyl)diphenylamine. Preferably, it is 2,6-di-t-dibutyl-4-hydroxytoluene.

[0092] A single type of antioxidant may be used, or multiple types may be used in combination.

[0093] The content of the antioxidant is not particularly limited as long as the purpose of formulation is achieved, but is preferably 0.001 to 1% by mass, more preferably 0.01 to 0.1% by mass, relative to the total mass of the liquid softener composition.

[0094] 〔water〕 The liquid fabric softener composition is preferably an aqueous composition containing water. For the water used, tap water, purified water, deionized water, distilled water, or ion-exchanged water can be used. Of these, ion-exchanged water is preferable. The water content is not particularly limited, but is preferably 50 to 95% by mass, and more preferably 70 to 90% by mass, relative to the total mass of the liquid softener composition.

[0095] [Method for manufacturing liquid fabric softener composition] Liquid fabric softener compositions can be manufactured by known methods, for example, by following the same process as for liquid fabric softener compositions mainly composed of silicone compounds. For example, a liquid softener composition can be produced by mixing an oil phase containing components (B), (C), (D), and (E) with an aqueous phase containing component (A) and stirring the mixture.

[0096] [Method of Using Liquid Softener Composition] The method for treating textile products using the liquid softener composition is not particularly limited and can be used in the same manner as conventional liquid softeners. For example, the treatment can be carried out by dissolving the liquid softener composition in the rinsing water at the rinsing stage of washing, or by dissolving the liquid softener composition in water in a container such as a tub and further immersing the textile products. In both cases, it is used after diluting to an appropriate concentration, and the bath ratio (weight ratio of the treatment liquid to the textile product) is preferably 3 to 100 times, particularly 5 to 50 times. The types of textile products that can be treated with the liquid softener composition are not particularly limited, and examples include clothing, curtains, sofas, carpets, towels, handkerchiefs, sheets, and pillow covers. The materials can be natural fibers such as cotton, silk, and wool, or chemical fibers such as polyester.

Examples

[0097] Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto. The blending amounts of each component in the examples and comparative examples are all shown in mass% (except when specified, in terms of pure content).

[0098] [(A) Component: Water-Soluble Cationic Polymer] The following A-1 and A-2 were used. A-1: Polymer of dimethyldiallylammonium chloride (manufactured by Nippon Lubrizol Corporation. Trade name "MERQUAT100"). A-1 is a water-soluble cationic polymer obtained by polymerizing dimethyldiallylammonium salt (X - is chloride ion) represented by the general formula (IV) (degree of cationization according to calculation formula (1): 10.5%. Weight average molecular weight: 1.5×10 5 ). Further, the solution obtained by adding 1 g of A- to 100 g of water at 25°C was colorless and transparent. A-2: Dimethyldiallylammonium chloride / acrylamide copolymer (manufactured by Lubrizol Japan, product name "MERQUAT550"). Degree of cationization calculated by formula (1): 4.3%. Weight-average molecular weight: 1.6 × 10⁻⁶ 6 Furthermore, the solution obtained by adding 1 g of A-2 to 100 g of water at 25°C was colorless and transparent.

[0099] [Component (B): Polyether-modified silicone] The following B-1 and B-3 were used. B-1: Polyether-modified silicone (manufactured by Dow Toray Ltd., product name "CF1188N") B-2: Polyether-modified silicone (manufactured by Dow Toray Ltd., product name "SH3775M") B-3: Polyether-modified silicone (manufactured by Shin-Etsu Chemical Co., Ltd. Product name "X-20-8010N")

[0100] [(C1) Component: Nonionic surfactant] The following C1-1 and C1-2 were used. C1-1: Polyoxyethylene isotridecyl ether EO7 moles (manufactured by Lion Chemical Co., Ltd., product name "TAG-90"). C1-1 is general formula (V)(R 1 It is a compound represented by an alkyl group with 13 carbon atoms, where r is 7. C1-2: 60 moles of polyoxyethylene isotridecyl ether EO (BASF's rutenzol TO3 with added ethylene oxide (EO)). C1-2 is general formula (V)(R 1 It is a compound represented by an alkyl group with 13 carbon atoms and r = 60.

[0101] [(C2) component: quaternary ammonium salt type cationic surfactant] The following C2-1 and C2-2 were used. C2-1: Cetyltrimethylammonium chloride (manufactured by Clariant; trade name "Genamin CTAC"). C2-1 is a compound represented by the general formula (3) (wherein R 3 、R 4 and R 5 are all methyl groups, R 6 is a linear alkyl group having 16 carbon atoms, and Z - is a chloride ion). C2-2: Dodecyltrimethylammonium chloride (manufactured by Lion Specialty Chemicals Co., Ltd.; trade name "Lipocard 12-37W"). C2-2 is a compound represented by the general formula (3) (wherein R 3 、R 4 and R 5 are all methyl groups, R 6 is a linear alkyl group having 12 carbon atoms, and Z - is a chloride ion).

[0102] [(D) component] The following D-1 and D-2 were used. D-1: 3-Methoxy-3-methylbutanol (manufactured by Kuraray Co., Ltd.; trade name "Solfit"). D-1 is a compound represented by the general formula (D) (wherein R<0000l04>[[ID=3 \4]]~R 4 are all hydrogen atoms). D-2: 3-Methoxy-3-methylbutyl acetate (manufactured by Kuraray Co., Ltd.; trade name "Solfit AC"). D-2 is a compound represented by the general formula (D) (wherein R 1 ~R 3 are all hydrogen atoms and R 4 is an acetyl group).

[0103] [(E) component: fragrance composition] A fragrance composition E-1 having the following composition was used.<\ TIFF0007888357000015.tif134170

[0104] [Antifoaming agent] The following F-1 aircraft were used. F-1: Silicone emulsion type defoaming agent (manufactured by Shin-Etsu Chemical Co., Ltd. Product name "KM-90")

[0105] [Additional water-miscible solvents] The following G-1 and G-2 were used. G-1: Diethylene glycol monobutyl ether (butyl carbitol) (manufactured by Nippon Emulsifier Co., Ltd. Product name: "Butyl diglycol (84)") G-2: Ethanol (manufactured by Nippon Synthetic Alcohol Co., Ltd. Product name: "Specific Alcohol 95% Synthetic")

[0106] [Antioxidant] The following H-1 was used. H-1: BHT (Butylated Hydroxytoluene) (Manufactured by Sumitomo Chemical Co., Ltd. Product name: "SUMILIZER BHT")

[0107] [Preparation of liquid fabric softener composition] First, components (B), (C) ((C1) and / or (C2)), (D), (E), (H), and (G) were placed in a 1000 ml beaker and thoroughly stirred with a stirring blade to obtain an oil phase mixture. On the other hand, component (A) was dissolved in deionized water to obtain an aqueous phase mixture. Next, while stirring the oil phase mixture, the aqueous phase mixture was added, and then component (F) was added. The mixture was then thoroughly stirred until homogeneous to prepare 1000 g of liquid softener composition. The composition of each liquid fabric softener composition is shown in Table 1 below. The content values ​​in Table 1 represent the content (mass %) relative to the total mass of the liquid fabric softener composition. In Table 1, "A / B" indicates the mass ratio of component (A) to component (B). In Table 1, "C / D" indicates the mass ratio of component (C) to component (D). In Table 1, "C1 / C2" indicates the mass ratio of component (C1) to component (C2). In Table 1, "D / G" indicates the mass ratio of component (D) to component (G) (additional water-miscible solvent).

[0108] [Evaluation of the appearance (transparency) of liquid fabric softener composition immediately after manufacturing] For each liquid fabric softener composition in the examples and comparative examples, when the liquid fabric softener composition was placed in a measurement cell (a glass cell with an optical path length of 10 mm) and deionized water was placed in a control cell, the light transmittance at a wavelength of 660 nm was 95% or higher. Therefore, each liquid fabric softener composition in the examples and comparative examples was transparent.

[0109] [Evaluation of the feel of textile products treated with liquid fabric softener composition] 1. Preparation of evaluation cloth Commercially available cotton towels (100% cotton, Senshu towels) were subjected to the following pretreatment twice using a commercially available detergent containing anionic surfactants as the main cleaning agent, "Top Platinum Clear" (manufactured by Lion Corporation), and a twin-tub washing machine (Toshiba VH-30S). Pretreatment: Repeat the cycle of washing with standard usage amount (30 times the bath ratio) of detergent and tap water (45°C) for 10 minutes, followed by rinsing with water for 10 minutes, twice. After pretreatment, the evaluation fabric was dried for 20 hours under constant temperature and humidity conditions (20°C, 45%RH).

[0110] 2. Flexibility treatment The evaluation fabric was subjected to a washing process using the commercially available detergent "Top Platinum Clear" (manufactured by Lion Corporation, standard usage amount) in a drum-type washing machine (HITACHI BD-V1, standard course), and a softening process using a liquid fabric softener composition (usage amount: 10 mL per 1.5 kg of evaluation fabric). The bath ratio (ratio of the mass of water to the mass of the evaluation fabric) during the washing and rinsing (softening) processes was 10:1. After the softening process, the evaluation fabric was dried for 20 hours under constant temperature and humidity conditions (20°C, 45% RH), and then its feel was evaluated using the following method.

[0111] 3. Evaluation of the feel of the fabric after softening treatment. The evaluation fabrics after softening treatment were subjected to a sensory pairwise comparison according to the evaluation criteria below. As a control, evaluation fabrics softened with the commercially available liquid fabric softener "Soflan Aroma Rich" (manufactured by Lion Corporation) (same as in "2. Softening Treatment" above) were used. The average scores (rounded to the nearest whole number) of the expert panel (10 people) are shown in the "Feel of the Evaluation Fabric" column of Table 1. A score of 3 or higher was judged as passing. <Evaluation Criteria> 4: Compared to the control, it is very smooth. 3: Compared to the control, it is smoother. 2: Compared to the control, it is slightly smoother. 1: Compared to the control, it is oily and not smooth.

[0112] [Evaluation of the retention of the transparent appearance (storage stability) of liquid fabric softener compositions] Liquid fabric softener compositions were placed in glass containers, sealed tightly, and stored for one month at 50°C (high temperature) and 5°C (low temperature). Changes in appearance before and after storage were visually evaluated according to the evaluation criteria below. The average scores of the panel (10 people) (rounded to the nearest whole number) are shown in the "Storage Stability" column of Table 1. <Evaluation Criteria> 4: No change (turbidity) compared to the sample before storage. 3: Slightly changed (turbid) compared to the sample before storage. 2: Changed (cloudy) compared to the sample before storage. 1: Significantly changed (cloudy, separated) compared to the sample before storage. [Industrial applicability]

[0113] This invention is applicable to the field of liquid fabric softeners.

[0114] [Table 1-1] [Table 1-2]

Claims

1. A liquid fabric softener composition comprising the following components (A) to (D): (A) Water-soluble cationic polymer, (B) Polyether-modified silicone, (C) Nonionic surfactant (C1) and quaternary ammonium salt type cationic surfactant (C2) (excluding component (B)), (D) Compounds represented by general formula (D) (In the formula, R 1 ~R 3 These are independently a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. R 4 (where is a hydrogen atom or an acetyl group), and (E) Flavor composition It contains, The content of component (D) is 0.1 to 15% by mass relative to the total mass of the liquid softener composition. The content of component (E) is 0.5 to 5% by mass relative to the total mass of the liquid softener composition. The mass ratio (A / B) of component (A) to component (B) is between 0.5 and 100. The liquid fabric softener composition is transparent or translucent. Component (C1) is a nonionic surfactant represented by general formula (V), R 1 -O-(C 2 H 4 O) r -H (V) (In the formula, R1 is a linear or branched alkyl or alkenyl group having 10 to 18 carbon atoms. r is the average number of moles added, and ranges from 2 to 75. The (C2) component is a quaternary ammonium salt type cationic surfactant represented by general formula (3). (In the formula, Two or three of R3, R4, R5, and R6 are independently C1-C3 alkyl groups or hydroxyalkyl groups, and the remainder are C8-C22 linear or branched alkyl groups or alkenyl groups. Z- represents a halogen ion or alkyl sulfate ion. A liquid fabric softener composition characterized by the following features.

2. The liquid softener composition according to claim 1, wherein the mass ratio (C / D) of component (C) to component (D) is 0.2 to 20.

3. The liquid fabric softener composition according to claim 1, wherein the mass ratio (C1 / C2) of component (C1) to component (C2) is 0.1 to 50.

4. The liquid fabric softener composition according to claim 1, wherein the content of component (B) is 1.0 to 4.0% by mass relative to the total mass of the liquid fabric softener composition.

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