DETERGENT COMPOSITION FOR FIBERS

Abstract

The present invention is a detergent composition for fibers that contains components (a) and (b) described below and satisfies at least one requirement of the following: requirement (1) a proportion of a content of component (a) to a total content of components (a) and (b1) is 35 mass % or more and 80 mass % or less; and requirement (2) a proportion of the content of component (a) to a total content of components (a) and (b2) is 50 mass % or more and 80 mass % or less. Component (a) is a sulfosuccinic acid ester or a salt thereof having a branched hydrocarbon group with 5 or more and 18 or less carbons, and component (b) is one or more surfactants selected from the following components (b1) and (b2): component (b1) an anionic surfactant (excluding component (a)); and component (b2) one or more nonionic surfactants selected from an aliphatic alcohol alkoxylate and an ester alkoxylate.

Claims

1: A detergent composition for fibers comprising the following components (a) and (b), component (a): a sulfosuccinic acid ester or a salt thereof having a branched hydrocarbon group with 5 or more and 18 or less carbons, and component (b): one or more surfactants selected from the following components (b1) and (b2) (excluding component (a)), component (b1): an anionic surfactant, and component (b2): one or more nonionic surfactants selected from an aliphatic alcohol alkoxylate and an ester alkoxylate, wherein the composition satisfies at least one of the following requirements (1) and (2), requirement (1): a proportion of a content of the component (a) to a total content of the components (a) and (b1) is 35 mass % or more and 80 mass % or less, and requirement (2): a proportion of the content of the component (a) to a total content of the components (a) and (b2) is 50 mass % or more and 80 mass % or less.

2: The detergent composition for fibers according to claim 1, wherein the component (a) is a sulfosuccinic acid diester or a salt thereof having two branched hydrocarbon groups with 5 or more and 18 or less carbons, the two hydrocarbon groups having 20 or more carbons in total.

3: The detergent composition for fibers according to claim 1, wherein the component (a) is a compound represented by the following general formula (a1): ##STR00003## wherein R.sup.1 and R.sup.2 each represent a branched hydrocarbon group with 5 or more and 18 or less carbons, A.sup.1O and A.sup.2O each represent an alkyleneoxy group with 2 or more and 4 or less carbons, x1 and x2 represent an average number of added moles, and each represent a number of 0 or more and 10 or less, and M represents a cation.

4: The detergent composition for fibers according to claim 3, wherein the branched hydrocarbon groups of R.sup.1 and R.sup.2 in the general formula (a1) each have a side chain with 3 or more carbons.

5: The detergent composition for fibers according to claim 1, wherein the component (b1) is one or more compounds selected from a compound (b1-1) represented by the following general formula (b1-1) [hereinafter referred to as component (b1-1)], a compound (b1-2) represented by the following general formula (b1-2) [hereinafter referred to as component (b1-2)] and a compound (b1-3) represented by the following general formula (b1-3) [hereinafter referred to as component (b1-3)],
R.sup.1bO[(PO).sub.m(EO).sub.n]SO.sub.3M(b1-1) wherein in the formula (b1-1), R.sup.1b represents an alkyl group with 8 or more and 22 or less carbons, in which a carbon atom bonded to the oxygen atom is a primary carbon atom, PO represents a propyleneoxy group, EO represents an ethyleneoxy group, PO and EO are bonded in blocks or bonded at random, PO and EO are bonded in arbitrary order, m and n represent an average number of added moles, and m is 0 or more and 5 or less and n is 0 or more and 16 or less, and M represents a hydrogen atom, an alkali metal, an alkaline earth metal ( atom), ammonium or an organic ammonium,
R.sup.2bBSO.sub.3M(b1-2) wherein in the formula (b1-2), R.sup.2b represents an alkyl group with 9 or more and 21 or less carbons, B represents a benzene ring, a carbon atom of R.sup.2b bonded to a carbon atom of B is a secondary carbon atom, M represents a hydrogen atom, an alkali metal, an alkaline earth metal ( atom), ammonium or an organic ammonium, and a sulfonic acid group is bonded in an ortho, meta or para position relative to R.sup.2b bonded to B, and
R.sup.3bCH(SO.sub.3M)COOR.sup.4b(b1-3) wherein in the formula (b1-3), R.sup.3b represents an alkyl group with 6 or more and 20 or less carbons, R.sup.4b represents an alkyl group with 1 or more and 6 or less carbons, and M represents a hydrogen atom, an alkali metal, an alkaline earth metal ( atom), ammonium or an organic ammonium.

6: The detergent composition for fibers according to claim 1, wherein the component (b2) is a nonionic surfactant represented by the following general formula (b2):
R.sup.5b(CO).sub.mO-(AO).sub.nR.sup.6b(b2) wherein R.sup.5b represents an aliphatic hydrocarbon group with 9 or more and 18 or less carbons; R.sup.6b represents a hydrogen atom or a methyl group; CO represents a carbonyl group; m represents a number of 0 or 1; AO represents one or more alkyleneoxy groups selected from an alkyleneoxy group with 2 carbons and an alkyleneoxy group with 3 carbons; when AO includes an ethyleneoxy group and a propyleneoxy group, the ethyleneoxy group and the propyleneoxy group may be bonded in blocks or bonded at random; and n represents an average number of added moles, and represents a number of 1 or more and 70 or less.

7: The detergent composition for fibers according to claim 1, comprising the components (b1) and (b2) as the component (b), wherein a proportion of the component (b1) to the component (b2) by mass ratio, (b1)/(b2), is 0.01 or more and 1 or less.

8: The detergent composition for fibers according to claim 1, further comprising a solvent having a hydroxyl group as a component (c).

9: The detergent composition for fibers according to claim 8, wherein the component (c) is one or more organic solvents selected from the following components (c1) to (c4): component (c1): a monohydric alcohol with 2 or more and 6 or less carbons; component (c2): a dihydric or more and dodecahydric or less alcohol with 2 or more and 12 or less carbons; component (c3): an organic solvent having a hydrocarbon group with 1 or more and 8 or less carbons (excluding an aromatic group that may be partially substituted), an ether group and a hydroxyl group; and component (c4): an organic solvent having an aromatic group that may be partially substituted, an ether group and a hydroxyl group.

10: The detergent composition for fibers according to claim 8, wherein a proportion of the component (c) to the component (a) by mass ratio, (c)/(a), is 0.6 or more and 5.0 or less.

11: A method for treating a textile product comprising, washing the textile product with a washing liquid obtained by mixing the following components (a) and (b) with water, and thereafter rinsing the textile product with water, component (a): a sulfosuccinic acid ester or a salt thereof having a branched hydrocarbon group with 5 or more and 18 or less carbons, and component (b): one or more surfactants selected from the following components (b1) and (b2) (excluding component (a)), component (b1): an anionic surfactant, and component (b2): one or more nonionic surfactants selected from an aliphatic alcohol alkoxylate and an ester alkoxylate, wherein the washing liquid satisfies at least one of the following requirements (1) and (2), requirement (1): a proportion of a content of the component (a) to a total content of the components (a) and (b1) in the washing liquid is 35 mass % or more and 80 mass % or less, and requirement (2): a proportion of the content of the component (a) to a total content of the components (a) and (b2) in the washing liquid is 50 mass % or more and 80 mass % or less.

Description

EXAMPLES

[0190] The components used in the examples and comparative examples are listed below.

Component (a)

[0191] Sodium di-2 ethylhexyl sulfosuccinate [0192] Sodium bis-2-propylheptyl sulfosuccinate

Component (b)

Component (b1)

[0193] APES: a (polyoxypropylene) polyoxyethylene lauryl ether sulfate sodium salt in which the alkyl group is derived from lauryl alcohol, the average number of added moles of the propyleneoxy group is 2 mol, and the average number of added moles of the ethyleneoxy group is 2 mol [0194] LAS: a sodium alkyl benzene sulfonate (alkyl composition: C10/C11/C12/C13=11/29/34/26 (mass ratio), mass average carbon number=17.75)

Component (b2)

[0195] MEE: a fatty acid methyl ester ethoxylate (in which the fatty acid has 16 or more and 18 or less carbons and the average number of added moles of the ethyleneoxy group is 15 mol) [0196] C12/14EO.sub.9PO.sub.2EO.sub.9: a polyoxyethylene.Math.polyoxypropylene.Math.polyoxyethylene mixed alkyl ether (in which the polyoxyethylene group, the polyoxypropylene group and the polyoxyethylene group are bonded to the mixed alkyl group of an alkyl group with 12 carbons and an alkyl group with 14 carbons (7/3 by mass ratio) in this order, the average numbers of added moles of the oxyethylene groups are 9 mol and 9 mol, and the average number of added moles of the oxypropylene group is 2 mol) [0197] C12/14EO.sub.10: a polyoxyethylene mixed alkyl ether (in which the polyoxyethylene group is bonded to the mixed alkyl group of an alkyl group with 12 carbons and an alkyl group with 14 carbons (7/3 by mass ratio), and the average number of added moles of the oxyethylene group is 10 mol) [0198] C12/14PO.sub.3.7EO.sub.16.5: a polyoxypropylene polyoxyethylene mixed alkyl ether (in which the polyoxypropylene group and the polyoxyethylene group are bonded to the mixed alkyl group of an alkyl group with 12 carbons and an alkyl group with 14 carbons (7/3 by mass ratio) in this order, the average number of added moles of the oxyethylene group is 16.5 mol, and the average number of added moles of the oxypropylene group is 3.7 mol)

Component (c)

[0199] Propylene glycol [0200] Butyldiglycol

Examples and Comparative Examples

[0201] The liquid detergent compositions for fibers shown in Tables 1 to 6 were prepared in the following manner and evaluated for the items below. The results are shown in Tables 1 to 6.

[Preparation of Composition]

[0202] A Teflon stirrer piece with a length of 5 cm was placed in a glass beaker with a capacity of 200 mL, and the mass of them was measured. Next, 20 g of ion exchange water at 25 C., component (c), then component (b), and then component (a), were placed in the beaker in this order, and the top of the beaker was sealed with Saran Wrap. The beaker having the contents therein was put in a water bath at 60 C. set on a magnetic stirrer, and the contents were stirred at 100 r/min for 30 minutes while keeping the temperature of water in the water bath in the temperature range of 602 C. After that, the pH of the contents was adjusted to a pH of 7 with an alkali agent (monoethanolamine) or an acid agent (citric acid). The pH measurements were made by the pH measurement method described earlier. Next, water in the water bath was replaced with tap water at 5 C., and the composition in the beaker was cooled to a temperature of 25 C. and then stirred for 10 minutes. Next, Saran Wrap was removed and ion exchange water was added such that the mass of the contents reached 200 g, and the contents were stirred again at 100 r/min for 5 minutes, thus obtaining the liquid detergent compositions for fibers listed in Tables 1 to 6.

[Method for Evaluating Washing Performance]

(1) Preparation of Model Sebum Artificial Stain Cloth

[0203] A model sebum artificial stain liquid of the composition shown below was adhered to cloth to prepare model sebum artificial stain cloth. The model sebum artificial stain liquid was printed on the cloth with a gravure roll coater to adhere the artificial stain liquid to the cloth. The step of adhering the model sebum artificial stain liquid to the cloth to prepare the model sebum artificial stain cloth was carried out with a gravure roll cell capacity of 58 cm.sup.3/m.sup.2, a coating rate of 1.0 m/min, a drying temperature of 100 C. and a drying time of 1 minute. Cotton 2003 (manufactured by Tanigashira Shoten) was used as the cloth.

*The composition of the model sebum artificial stain liquid was as follows: lauric acid 0.4 mass %, myristic acid 3.1 mass %, pentadecanoic acid 2.3 mass %, palmitic acid 6.2 mass %, heptadecanoic acid 0.4 mass %, stearic acid 1.6 mass %, oleic acid 7.8 mass %, triolein 13.0 mass %, n-hexadecyl palmitate 2.2 mass %, squalene 6.5 mass %, egg white lecithin liquid crystal 1.9 mass %, Kanuma red soil 8.1 mass %, carbon black 0.01 mass %, and the balance of the composition was water (100 mass % in total).

(2) Evaluation of Washing Power

[0204] Five pieces of the above prepared model sebum artificial stain cloth (6 cm6 cm) were washed with a tergotometer (Ueshima, MS-8212) at 85 rpm for 10 minutes. All washes were made under the following washing condition: city water (3.5 dH, 25 C.) was added to the liquid detergent compositions for fibers listed in Tables 1 to 6 such that the concentration of the compositions was 0.083 mass %; and the water temperature was 25 C. After washing, rinsing with city water (25 C.) for 3 minutes, and then drying, were performed.

[0205] The washing rates (%) of the five pieces were measured by the following method, and the average value thereof was determined. The results are shown in Tables 1 to 6. Note that the reflectances at 550 nm of the original cloth before staining and before and after washing were measured with a colorimeter (manufactured by NIPPON DENSHOKU INDUSTRIES Co., Ltd., Z-300A). In this evaluation, a composition attaining a higher washing rate is preferable as it is more excellent in washing performance.

Washing rate (%)=100[(reflectance after washingreflectance before washing)/(reflectance of original clothreflectance before washing)]

[Method for Evaluating Ease of Removal]

(1) Pretreatment of Clothing to be Evaluated

[0206] About 4 kg of clothing to be evaluated was equally divided in advance into portions of about 2 kg, and each portion was repeatedly washed consecutive five times using a nonionic surfactant (an ethylene oxide adduct of lauryl alcohol (the average number of added moles was 8)) in the fully automatic washing machine Panasonic NA-F70PB11 (the used amount of the nonionic surfactant 4.5 g, standard course, water amount 45 L, water temperature 25 C., washing time 10 minutes and water-saving rinsing twice). After that, the clothing was dried for one day under the condition of 25 C. and 43% RH. Here, about 4 kg of the clothing to be evaluated was as follows: 5 commercially available towels (Senshu Towel, 100% cotton, 34 cm86 cm), 4 commercially available bath towels (Belle Maison, 100% cotton), 10 commercially available undershirts (Gunze YG undershirt (L), 100% cotton), 5 commercially available dress shirts (UNIQLO big silhouette shirt (M), 100% cotton), 5 commercially available T-shirts (UNIQLO crew-neck T-shirt, 100% cotton) and 2 pairs of commercially available pants (UNIQLO chino pants (XL), 100% cotton).

(2) Washing of Clothing to be Evaluated

[0207] 27 g of each composition in Tables 1 to 6 was weighed, with which 4 kg of the pre-treated clothing to be evaluated was washed with the standard course (washing for 8 minutes, rinsing once and dehydration for 6 minutes) of a fully automatic washing and drying machine (manufactured by TOSHIBA CORPORATION, AW-8D7) under the condition of 54 L of tap water (25 C.) and a total amount of 4 kg of the clothing.

(3) Evaluation of Ease of Removal

[0208] Evaluations were made for ease of removal of clothing when the clothing was removed one by one from a washing tub after dehydration into a laundry basket after the washing process (2). Evaluations were made in such a manner that 6 skilled persons gave scores on the basis of the following criteria with the case of washing with the composition of comparative example 1-1 as the reference case, and the average score of the 6 persons was calculated. The evaluation scores given by the 6 persons were totaled and the average score was calculated. The tables show the values rounded off to two decimal places. The results are shown in Tables 1 to 6. In this evaluation, a composition attaining a higher average score is preferable as it achieves more excellent ease of removal.

[0209] Such an evaluation of ease of removal of textile products after dehydration not only serves as an indicator of a finish with less entanglement of textile products with one another and suppressed damage to textile products, but also is an indicator relevant to ease of subsequent processes such as hanging or folding of clothing, from which it can be known how they are facilitated. [0210] 1 . . . compared to the case of washing with the composition of comparative example 1-1, the clothing was tangled and difficult to remove [0211] 0 . . . the clothing was removed as easily as the clothing washed with the composition of comparative example 1-1 [0212] 1 . . . compared to the case of washing with the composition of comparative example 1-1, the clothing was slightly less likely to be tangled and easier to remove [0213] 2 . . . compared to the case of washing with the composition of comparative example 1-1, the clothing was less likely to be tangled and easier to remove

TABLE-US-00001 TABLE 1 Example Comparative example 1-1 1-2 1-3 1-1 1-2 1-3 1-4 1-5 1-6 Liquid For- (a) Sodium di-2 10 20 detergent mulation ethylhexyl com- com- sulfosuccinate position ponent Sodium bis-2- 10 10 20 3 18 for (mass %) propylheptyl fibers sulfosuccinate (b) (b1) APES 10 10 10 20 17 2 (c) Propylene 10 10 10 10 10 10 10 10 glycol Butyldiglycol 10 Water Balance Balance Balance Balance Balance Balance Balance Balance Balance Total 100 100 100 100 100 100 100 100 100 (a)/[(a) + (b1)] (mass %) 50.00 50.00 50.00 100.00 100.00 0.00 15.00 90.00 (a)/[(a) + (b2)] (mass %) 100.00 100.00 100.00 100.00 100.00 100.00 100.00 (b1)/(b2) (mass ratio) (c)/(a) (mass ratio) 1.00 1.00 1.00 0.50 0.50 3.33 0.00 Washing rate (%) 37.00 26.48 26.51 0.34 5.55 1.80 40.72 38.76 2.43 Ease of removal 0.50 1.00 1.00 (Reference) 0.50 1.33 0.17 0.00 1.33

TABLE-US-00002 TABLE 2 Comparative Example example 2-1 2-2 2-1 2-2 Liquid Formulation (a) Sodium bis-2-propylheptyl 10 10 3 18 detergent component sulfosuccinate composition (mass %) (b) (b1) APES 10 5 10 1 for (b2) C12/14EO.sub.9PO.sub.2EO.sub.9 10 5 7 1 fibers (c) Propylene glycol 10 10 10 10 Water Balance Balance Balance Balance Total 100 100 100 100 (a)/[(a) + (b1)] (mass %) 50.00 66.67 23.08 94.74 (a)/[(a) + (b2)] (mass %) 50.00 66.67 30.00 94.74 (bl)/(b2) (mass ratio) 1.00 1.00 1.43 1.00 (c)/(a) (mass ratio) 1.00 1.00 3.33 0.00 Washing rate (%) 41.12 30.20 38.21 5.43 Ease of removal 1.17 1.33 0.00 1.33

TABLE-US-00003 TABLE 3 Comparative Example example 3-1 3-2 3-1 Liquid Formulation (a) Sodium di-2 ethylhexyl 10 detergent component sulfosuccinate composition (mass %) Sodium bis-2-propylheptyl 10 for sulfosuccinate fibers (b) (b1) LAS 10 10 20 (c) Propylene glycol 10 10 10 Water Balance Balance Balance Total 100 100 100 (a)/[(a) + (b1)] (mass %) 50.00 50.00 0.00 (a)/[(a) + (b2)] (mass %) 100.00 100.00 (b1)/(b2) (mass ratio) (c)/(a) (mass ratio) 1.00 1.00 Washing rate (%) 18.33 15.26 25.53 Ease of removal 0.67 1.33 0.17

TABLE-US-00004 TABLE 4 Com- parative Example example 4-1 4-1 Liquid Formulation (a) Sodium bis- 10 detergent component 2-propylheptyl com- (mass %) sulfosuccinate position (b) (b2) MEE 10 20 for fibers (c) Propylene 10 10 glycol Water Balance Balance Total 100 100 (a)/[(a) + (b1)] (mass %) 100.00 (a)/[(a) + (b2)] (mass %) 50.00 0.00 (b1)/(b2) (mass ratio) 0.00 (c)/(a) (mass ratio) 1.00 Washing rate (%) 20.85 46.40 Ease of removal 1.17 0.00

TABLE-US-00005 TABLE 5 Comparative Example example 5-1 5-1 5-2 Liquid Formulation (a) Sodium bis-2-propylheptyl 10 3 18 detergent component sulfosuccinate composition (mass %) (b) (b2) C12/14EO.sub.9PO.sub.2EO.sub.9 10 17 2 for (c) Propylene glycol 10 10 10 fibers Water Balance Balance Balance Total 100 100 100 (a)/[(a) + (b1)] (mass %) 100.00 100.00 100.00 (a)/[(a) + (b2)] (mass %) 50.00 15.00 90.00 (b1)/(b2) (mass ratio) 0.00 0.00 0.00 (c)/(a) (mass ratio) 1.00 0.00 0.00 Washing rate (%) 28.24 38.24 3.12 Ease of removal 1.00 0.00 0.17

TABLE-US-00006 TABLE 6 Example 6-1 6-2 6-3 6-4 6-5 Liquid Formulation (a) Sodium bis-2-propylheptyl 10 15 15 3 10 detergent component sulfosuccinate composition (mass %) (b) (b1) APES 5 for LAS 2 fibers (b2) C12/14EO.sub.10 10 5 5 C12/14PO.sub.3.7EO.sub.16.5 15 10 (c) Propylene glycol 10 10 10 10 10 Water Balance Balance Balance Balance Balance Total 100 100 100 100 100 (a)/[(a) + (bl)] (mass %) 100.00 100.00 75.00 60.00 100.00 (a)/[(a) + (b2)] (mass %) 50.00 75.00 75.00 16.67 50.00 (b1)/(b2) (mass ratio) 0.00 0.00 1.00 0.13 0.00 (c)/(a) (mass ratio) 1.00 0.67 0.67 3.33 1.00 Washing rate (%) 28.76 10.19 25.69 36.30 30.34 Ease of removal 0.83 1.33 1.33 1.00 1.00