JP2008044987A - Detergent composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a detergent composition that exhibits high migration-preventing effects and fading-preventing effects even when white clothes are washed together with colored clothes or patterned clothes. <P>SOLUTION: The detergent composition comprises (a) an α-sulfofatty acid alkyl ester salt, (b) a clay mineral and (c) a reducing agent each at a specific ratio. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cleaning composition. The present invention preferably relates to a cleaning composition for clothing, particularly a cleaning composition for color and patterned clothing.

  For washing clothes, etc., some of the colored components such as dyes are decomposed and bleached by chlorine compounds mixed for sterilization in tap water, or the colored components are eluted in the washing liquid and fall off from the clothing etc. Discoloration of the object to be cleaned, such as “fading” that occurs, or discolored coloring components that adhere to other clothing, in particular, white clothing, may result.

Conventionally, a technique for capturing chlorine compounds in tap water using amines has been reported (for example, Patent Document 1). With respect to prevention of dye transfer, a technique for blending a dye transfer inhibitor capable of forming a complex with a color component eluted in a washing liquid has been reported. As the dye transfer inhibitor, for example, polyvinyl pyrrolidone (PVP), poly (vinyl pyridine betaine) (Patent Document 2, etc.), polyamine N-oxide polymer (Patent Document 3, etc.) and the like are disclosed.
JP-A-10-72772 Special table 2001-517730 gazette JP 2000-345192 A

  However, conventional knowledge is not enough to solve the problem of washing with mixed color / pattern clothing and white clothing, and separates color / pattern clothing and white clothing separately. There was a need to wash.

  An object of the present invention is to provide a detergent composition having a high anti-transfer effect and a fading-preventing effect even when a color / patterned apparel and a white apparel are washed together.

  The present invention comprises (a) an α-sulfo fatty acid alkyl ester salt (hereinafter referred to as component (a)) of 3 to 30% by mass, (b) a clay mineral (hereinafter referred to as component (b)) of 8 to 30% by mass, and (C) containing 0.1 to 2% by mass of a reducing agent (hereinafter referred to as component (c)), and (a) component / (b) component mass ratio of 1/6 to 4/3, (b) component It is related with the cleaning composition whose mass ratio of / (c) component is 100/1-6/1, and whose mass ratio of (a) component / (c) component is 100/1-2/1.

  Moreover, this invention contains (a) alpha-sulfo fatty-acid alkylester salt 3-30 mass%, (b) clay mineral 8-30 mass%, and (c) 0.1-2 mass% of reducing agents, The mass ratio of (a) component / (b) component is 1/6 to 4/3, the mass ratio of (b) component / (c) component is 100/1 to 6/1, (a) component / (c) The present invention relates to a detergent composition for color / patterned clothing having a mass ratio of components of 100/1 to 2/1.

  Moreover, this invention contains (a) alpha-sulfo fatty-acid alkylester salt 3-30 mass%, (b) clay mineral 8-30 mass%, and (c) 0.1-2 mass% of reducing agents, The mass ratio of (a) component / (b) component is 1/6 to 4/3, the mass ratio of (b) component / (c) component is 100/1 to 6/1, (a) component / (c) It is related with the washing | cleaning method which uses 5-10g per 1 kg of clothing cleaning compositions for clothing whose mass ratio of an ingredient is 100/1-2/1.

  Moreover, this invention contains (a) alpha-sulfo fatty-acid alkylester salt 3-30 mass%, (b) clay mineral 8-30 mass%, and (c) 0.1-2 mass% of reducing agents, The mass ratio of (a) component / (b) component is 1/6 to 4/3, the mass ratio of (b) component / (c) component is 100/1 to 6/1, (a) component / (c) The present invention relates to a washing method in which a clothing detergent composition having a mass ratio of components of 100/1 to 2/1 is used in a washing bath for clothing in which color / pattern clothing and white clothing are mixed.

  According to the present invention, it is possible to obtain a detergent composition having a high effect of preventing migration and fading even when color / patterned clothing and white clothing are washed together.

  The cleaning composition of the present invention contains (a) an α-sulfo fatty acid alkyl ester salt of 3 to 30% by mass, (b) a clay mineral of 8 to 30% by mass, and (c) a reducing agent of 0.1 to 2% by mass. The mass ratio of (a) component / (b) component is 1/6 to 4/3, the mass ratio of (b) component / (c) component is 100/1 to 6/1, (a) component / ( c) The mass ratio of the components is 100/1 to 2/1.

  From the viewpoint of the effect of preventing migration and fading, the mass ratio of component (a) / component (b) is preferably 1/5 to 6/5, more preferably 1/4 to 1/1, and 1/3. 5/6 is more preferable.

  From the viewpoints of the dye transfer prevention effect and the fading prevention effect, the mass ratio of the component (b) / (c) is preferably 80/1 to 8/1, more preferably 70/1 to 10/1, and 60/1 to 60/1. 12/1 is more preferable.

  From the viewpoints of the dye transfer prevention effect and the fading prevention effect, the mass ratio of the component (a) / (c) is preferably 70/1 to 4/1, more preferably 50/1 to 5/1, and 30/1. 6/1 is more preferable.

  From the viewpoint of cleaning performance and solubility, the surfactant equivalent of the cleaning composition of the present invention described in JIS K 3362: 1998 is preferably 20 to 50% by mass, more preferably 25 to 45% by mass, and more preferably 30 to 40%. More preferred is mass%.

  In the cleaning composition of the present invention, the pH of a 0.1% by mass aqueous solution measured at 20 ° C. described in JIS K 3362: 1998 is preferably 8 to 12 from the viewpoint of cleaning performance and damageability, and 9 to 11 .5 is more preferable, 9.5 to 11 is still more preferable, and 10 to 11 is particularly preferable. It is preferable to adjust to such a range with a pH adjuster, alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, alkali metal carbonates such as sodium carbonate and potassium carbonate, sodium silicate, potassium silicate Alkali metal silicates such as can be used.

  The cleaning composition of the present invention is preferably a powder from the viewpoint of stable blending of the component (b). When the cleaning composition of the present invention is a powder, the apparent density measured by the method defined by JIS K 3362: 1998 is preferably 1600 g / L or less, more preferably 1300 g / L or less, from the viewpoint of solubility. More preferably 1000 g / L or less. Further, from the viewpoint of convenience and reduction of waste (such as boxes), the apparent density is preferably 300 g / L or more, more preferably 600 g / L or more, and further preferably 700 g / L or more. From the viewpoint of solubility, the average particle size of the powder detergent composition obtained from the mass fraction according to the size of the sieve mesh is preferably 150 to 1000 μm, more preferably, after vibrating for 5 minutes using a standard sieve of JIS Z 8801. Is 150 to 800 μm, more preferably 180 to 600 μm. Further, from the viewpoint of convenience, it may be further compressed into a tablet form, and a single use amount can be stored in a water-soluble or water-insoluble container.

  From the viewpoint of the dye transfer prevention effect and the fading prevention effect, the cleaning composition of the present invention is preferably used in an amount of 3 to 15 g, more preferably 5 to 10 g, and still more preferably 6 to 9 g with respect to 1 kg of the object to be cleaned. The article to be cleaned is preferably a textile product, in particular, clothing, and in particular, clothing in which colored and white clothing is mixed.

  Hereinafter, each component of the cleaning composition of the present invention will be described.

<(A) component>
The cleaning composition of the present invention contains 3 to 30% by mass of an α-sulfo fatty acid alkyl ester salt as the component (a). The content of the component (a) in the composition is preferably 3.5 to 20% by mass, more preferably 4 to 15% by mass, and further preferably 5 to 10% by mass from the viewpoints of the dye transfer prevention effect and the fading prevention effect. preferable.

  From the viewpoint of cleaning performance, the α-sulfo fatty acid alkyl ester salt is methyl of saturated or unsaturated α-sulfo fatty acid having 8 to 20 carbon atoms (preferably 12 to 18 carbon atoms, more preferably 14 to 16 carbon atoms). , Ethyl or propyl ester salts are preferable, and methyl ester salts of saturated or unsaturated α-sulfo fatty acids having 12 to 18 carbon atoms (preferably 14 to 16 carbon atoms) are particularly preferable.

  From the viewpoint of dye transfer prevention effect and anti-fading effect, component (a) is composed of (a1) α-sulfomyristate alkyl ester salt (hereinafter referred to as component (a1)) and (a2) α-palmitate alkyl ester salt [ (Hereinafter referred to as “component (a2)”), in which case the total amount of (a1) α-sulfomyristate alkyl ester salt and (a2) α-palmitate alkyl ester salt is 80 in component (a). It is preferably at least mass%, more preferably at least 90 mass%, further preferably at least 95 mass%, particularly preferably at least 98 mass%.

  In addition, from the viewpoint of the dye transfer prevention effect and the fading prevention effect, the mass ratio of the component (a1) / (a2) is preferably 1/9 to 3/7, more preferably 12/88 to 28/72, 15 / 85-25 / 75 is more preferable.

  From the viewpoint of cleaning performance, the component (a) is a water-soluble salt such as an alkali metal or alkaline earth metal, and a sodium salt or potassium salt is preferable.

  From the viewpoint of the effect of preventing dye transfer and fading, the mass ratio of sodium salt / potassium salt is preferably 100/0 to 50/50, more preferably 95/5 to 60/40, and 90/10 to 70/30. Is more preferable.

<(B) component>
The cleaning composition of the present invention contains 8-30% by mass of clay mineral as component (b). The content of the component (b) in the composition is preferably 9 to 20% by mass, more preferably 10 to 18% by mass, and still more preferably 11 to 16% by mass from the viewpoint of the dye transfer prevention effect and the fading prevention effect.

As component (b), talc, pyrophyllite, smectite (saponite, hectorite, saconite, stevensite, montmorillonite, beidellite, nontronite, etc.), vermiculite, mica (phlogopite, biotite, chinwald mica, muscovite mica) , Paragonite, ceradonite, sea chlorite, etc.), chlorite (clinochlore, chamosite, nimite, penantite, sudite, dombasite, etc.), brittle mica (clinintite, margarite, etc.), sulite, serpentine mineral (antigolite) Lizardite, chrysotile, amicite, cronstedite, burcherin, greenerite, garnierite, etc.), kaolin minerals (kaolinite, dickite, nacrite, halloysite, etc.). Smectite type clay minerals are preferred from the viewpoint of the effect of preventing dye transfer and anti-fading, and among these, smectite type clay minerals represented by the following general formula (I) are preferred.
_{[Si 8 (Mg a Al b} ) O 20 (OH) 4] x- · Me x + (I)
(In the formula, 0 <a ≦ 6, 0 <b ≦ 4, x = 12-2−3a-3b, Me is at least one of Na, K, Li, Ca ^1/2 , Mg ^1/2 and NH _4. (However, the molar ratio of Na / Ca is 1.0 or more.)

  Further, in the formula, the molar ratio of Na / Ca is preferably 1.5 or more, and more preferably 2 or more.

  As a method for obtaining a clay mineral having a high Na / Ca molar ratio, if it is a natural product, the production area may be selected, or, for example, when a clay granulated product is produced, it is adjusted by adding Na salt or the like. It is also possible to do. Moreover, if it is a synthetic | combination product, it can adjust arbitrarily by a well-known method.

  The following production method is useful as a method for producing a clay granulated product having a high Na / Ca molar ratio. When a raw material clay ore containing 20% or more moisture is added with a sodium salt such as powdered sodium carbonate and then dried, or when granulating a powdered clay mineral using a granulator This is a production method including a step of adding a powder or an aqueous solution of Na salt such as sodium carbonate.

  The molar ratio of Na and Ca in the clay granulated product was determined by pulverizing the clay granulated product with a mortar and passing 0.1 g of the sample that passed through a sieve with an opening of 125 μm using a microwave wet ashing device (automatic). After hydrogenolysis, the volume can be made up to 50 mL with a volumetric flask, measured with an ICP emission analyzer, and the amounts of Na and Ca can be determined and calculated.

<(C) component>
The cleaning composition of the present invention contains 0.1 to 2% by mass of a reducing agent as component (c). From the viewpoint of the dye transfer prevention effect and the fading prevention effect, 0.15 to 1.5% by mass is preferable, 0.18 to 1.2% by mass is more preferable, and 0.2 to 1% by mass is still more preferable.

  Examples of the component (c) include sulfites, bisulfites, thiosulfates, dithionates, pyrosulfates, nitrites, borates and the like. These salts are preferably alkali metal salts such as sodium salts and potassium salts. From the viewpoint of the effect of preventing migration and fading, sulfites are preferred, and sodium sulfite is more preferred.

<(D) component>
From the viewpoint of the dye transfer prevention effect and the fading prevention effect, the cleaning composition of the present invention preferably contains 0.1 to 10% by mass of a nonionic surfactant as component (d), and 0.5 to 9% by mass. % Is more preferable, and 1-8 mass% is still more preferable.

As the component (d), polyoxyalkylene alkyl (carbon number 8 to 20) ether, alkyl polyglycoside, polyoxyalkylene alkyl (carbon number 8 to 20) phenyl ether, polyoxyalkylene sorbitan fatty acid (carbon number 8 to 22) Examples include esters, polyoxyalkylene glycol fatty acid (carbon number 8 to 22) esters, and polyoxyethylene polyoxypropylene block polymers. Among these, nonionic surfactants represented by the following general formula (II) are preferable.
^{R 1 -X - [(EO)} n / (PO) m] -R 2 (II)
(Wherein R ¹ represents a hydrophobic group having 8 to 20 carbon atoms, —X— represents —O—, —COO—, —CONH—, EO represents an oxyethylene group, PO represents an oxypropylene group, n and m) Represents the average number of moles added, n is 3 to 20, preferably 5 to 15, m is 0 to 6, preferably 0 to 3. The addition form of the EO group and the PO group may be block or random. R ² is a hydrogen atom or a hydrocarbon group, preferably an alkyl group or alkenyl group having 1 to 6 carbon atoms.

In the formula, R ¹ preferably has 12 to 18 carbon atoms, the hydrophobic group is preferably a hydrocarbon group, preferably an alkyl group or an alkenyl group, -X- is preferably -O-, m is preferably 0, R ² Is preferably a hydrogen atom.

<(E) component>
From the viewpoint of the dye transfer prevention effect and the fading prevention effect, the cleaning composition of the present invention preferably contains 5 to 40% by mass of alkali metal carbonate as component (e), more preferably 10 to 38% by mass, 20-36 mass% is still more preferable.

  (E) As a component, sodium carbonate and potassium carbonate are mentioned. Especially, it is preferable that both sodium carbonate salt and potassium carbonate salt are included. The mass ratio of sodium carbonate / potassium carbonate is preferably 9/1 to 2/3, more preferably 8/1 to 1/1, still more preferably 7/1 to 2/1, and 6/1 to 4/1. Is particularly preferred. In the component (e), the total amount of sodium carbonate salt and potassium carbonate salt is preferably 90% by mass or more, and more preferably 95% by mass or more.

<Other ingredients>
The detergent composition of the present invention comprises other surfactants, builders, anti-staining agents (such as carboxymethylcellulose), softeners, bleaches, bleach activators, fluorescent enhancers known in the field of detergents for clothing. Whitening agents, foam suppressants (silicone, etc.), enzymes, coloring agents, fragrances and the like can be contained.

  As the other surfactant, an anionic surfactant other than the component (a), an amphoteric surfactant, and one or more cationic surfactants can be used, but preferably (d In addition to the component (a), an anionic surfactant other than the component (a) is used in combination.

  As the anionic surfactant other than the component (a), alkylbenzene sulfonate, paraffin sulfonate, polyoxyalkylene alkyl ether sulfate, α-olefin sulfonate, α-sulfo fatty acid salt or fatty acid salt are preferable. In the present invention, linear alkylbenzene sulfonates having 10 to 14 carbon atoms in the alkyl chain and fatty acid salts (8 to 18 carbon atoms) are particularly preferred, and as the counter ion, alkali metal salts and amines are preferred. Sodium and / or potassium, monoethanolamine and diethanolamine are preferred. When using alkylbenzene sulfonate, 5-12 mass% is preferable and, as for content in a cleaning composition, 6-10 mass% is more preferable. Moreover, when using a fatty acid salt, 5-15 mass% is preferable and, as for content in a cleaning composition, 7-12 mass% is more preferable.

  (E) Builders other than the components include detergents and cleaning encyclopedias, Asakura Shoten Co., Ltd., November 25, 1990, first edition, first edition, Haruhiko Okuyama, edited by Motoki Minagawa, pages 56-74. It is done. Among them, zeolite, amorphous aluminosilicate, crystalline silicate, sodium tripolyphosphate, sodium pyrophosphate, and silicate are preferable as the inorganic builder, and aminocarboxylate and hydroxyaminocarboxylic acid are preferable as the organic builder. Salts, hydroxycarboxylates, cyclocarboxylates, ether carboxylates, and organic carboxylic acid (salt) polymers are preferred. In particular, zeolite and silicate are preferable as the inorganic builder, and organic carboxylic acid (salt) polymer is preferable as the organic builder.

  Surface modification may be performed from the viewpoint of fluidity of the detergent particles and caking resistance. Examples of the surface modifier include aluminosilicates, calcium silicates, silicon dioxide, clay minerals, amorphous silica derivatives, silicate compounds such as crystalline silicate compounds, and fine powders such as metal soaps. Aluminosilicates and crystalline silicates are more preferable, and aluminosilicates are more preferable. The content of the surface modifier is preferably 20% by mass or less, more preferably 15% by mass or less, and still more preferably 10% by mass or less in the cleaning composition of the present invention from the viewpoint of storage stability. Moreover, 1 mass% or more in the cleaning composition of this invention is preferable at the point of surface modification, 3 mass% or more is more preferable, and 5 mass% or more is still more preferable.

  The powder detergent composition shown in Table 1 was produced, and the dye transfer prevention effect, the fading prevention effect and the washing performance were evaluated by the following methods. In addition, as for the composition of Table 1, pH of 0.1 mass% aqueous solution measured at 20 degreeC of JISK3362: 1998 all was 10-11. Moreover, the apparent density measured by the method prescribed | regulated by JISK3362: 1998 was all 700-1000 g / L. Moreover, after vibrating for 5 minutes using the standard sieve of JISZ8801, the average particle diameter of the powder detergent composition calculated | required from the mass fraction by the size of a sieve mesh was 180-600 micrometers.

[Evaluation method of anti-transfer effect]
1.5 kg of cotton cloth (# 2003, 10 cm × 10 cm) dyed with a blue dye (CI Direct Blue 86) and 1.5 kg of cotton cloth (# 2003, 10 cm × 10 cm) are washed in a washing machine ( It was put into Matsushita Electric Industrial Co., Ltd. (NA-F60E), washed in standard mode using 24 g of the detergent composition shown in Table 1, and then shaded. The chlorine concentration of the tap water used at this time was 1 ppm. As an evaluation of the degree of discoloration of white cloth due to dye transfer, the E * value of each cotton cloth was measured before and after washing with a color difference meter (SE200 type) manufactured by Nippon Denshoku Co., Ltd., and five pieces of cotton cloth before and after washing. The average of the color tone change ΔE ^* values was determined. Judgment was made according to the following criteria.
ΔE ^* value is less than 5: ○
ΔE ^* value is 5 or more and less than 8:
ΔE ^* value is 8 or more: ×

[Evaluation method of anti-fading effect]
3 kg of cotton cloth (# 2003, 10 cm × 10 cm) dyed with a blue dye (CI Direct Blue 86) was put into a washing machine (NA-F60E manufactured by Matsushita Electric Industrial Co., Ltd.). After washing in the standard mode using 24 g of the detergent composition, the product was shaded. The chlorine concentration of the tap water used at this time was 1 ppm. This operation was repeated 30 times, and compared with a new product, the following criteria were used.
It was the same color as the new one: ○
Slightly amber color can be seen: △
Scarlet color is clearly seen: ×

[Evaluation method of cleaning performance]
A collar cover cloth described in JIS K3362: 1998 was prepared, and using this, the detergent composition and the index for determining the cleaning power shown in Table 1 according to the method for evaluating the cleaning power of a synthetic detergent for clothing described in JIS K3362: 1998 The detergency of the detergents was compared. The use concentration of the cleaning composition in Table 1 was 0.5 g / L. However, the calcium chloride dihydrate used in the water used was 270 mg / L. Judgment was made according to the following criteria.
Detergency is better than index detergent: ○
Equivalent detergent and detergency: △
Detergency is inferior to index detergent: ×

The components in the table are as follows. Note that EO is an abbreviation for ethylene oxide and PO is an abbreviation for propylene oxide.
Α-SFE-Na1: α-sulfolauric acid methyl ester sodium α-SFE-Na2: α-sulfomyristic acid sodium methyl ester α-SFE-Na3: α-sulfopalmitic acid methyl ester sodium α-SFE- Na4: α-sulfostearic acid methyl ester sodium α-SFE-K: α-sulfo fatty acid methyl ester potassium (14 fatty acids / 16 fatty acids = 20/80, mass ratio)
Clay mineral 1: Round rosyl DGA (manufactured by Zud Chemie, clay mineral of general formula (I), Na / Ca molar ratio = 2.5)
Clay mineral 2: Round rosyl DG (manufactured by Zud Chemie, with Na / Ca molar ratio of 0.01 in general formula (I))
Nonionic surfactant 1: Nonionic surfactant obtained by adding an average of 7 moles of EO to a linear primary alcohol having 12 to 14 carbon atoms. Nonionic surfactant 2: Second one having 12 to 14 carbon atoms. Nonionic surfactant with 7 moles of EO added on average to alcohol (Nippon Shokubai Co., Ltd., Softanol 70H)
Nonionic surfactant 3: Nonionic surfactant obtained by adding a block to a linear primary alcohol having 12 to 14 carbon atoms in the order of an average of 5 mol of EO, an average of 2 mol of PO, and an average of 3 mol of EO LAS-Na: Sodium alkylbenzene sulfonate having 10 to 14 carbon atoms in the alkyl group Soap: Palm kernel oil fatty acid sodium PEG: Polyethylene glycol (weight average molecular weight 13000)
-Sodium polyacrylate: weight average molecular weight 10,000
・ Fluorescent dye: Chino Pearl CBS-X (Ciba Specialty Chemicals)
Enzyme: Cellulase K (described in JP-A 63-264699) and Lipolase 100T (manufactured by Novo) at a mass ratio of 3: 1

Claims (11)

(A) α-sulfo fatty acid alkyl ester salt 3-30% by mass, (b) clay mineral 8-30% by mass, and (c) 0.1-2% by mass of reducing agent, (a) component / ( The mass ratio of b) component is 1/6 to 4/3, the mass ratio of component (b) / (c) is 100/1 to 6/1, and the mass ratio of component (a) / (c) is 100. A cleaning composition that is 1 to 2/1. The detergent composition according to claim 1, further comprising (d) 0.1 to 10% by mass of a nonionic surfactant. The detergent composition according to claim 1 or 2, further comprising (e) 5 to 40% by mass of an alkali carbonate metal salt, wherein the mass ratio of sodium carbonate / potassium carbonate is 9/1 to 2/3. object. The detergent composition according to any one of claims 1 to 3, wherein the amount of the surfactant corresponding to JIS K 3362: 1998 is 20 to 50% by mass in the detergent composition. The component (a) includes (a1) α-sulfomyristate alkyl ester salt and (a2) α-palmitate alkyl ester salt, and the mass ratio of (a1) / (a2) is 1/9 to 3/7 The cleaning composition according to any one of claims 1 to 4, wherein the total amount of the components (a1) and (a2) in the component (a) is 80% by mass or more. The cleaning composition according to any one of claims 1 to 5, wherein the component (b) is a smectite type clay mineral represented by the following general formula (I).
_{[Si 8 (Mg a Al b} ) O 20 (OH) 4] x- · Me x + (I)
(In the formula, 0 <a ≦ 6, 0 <b ≦ 4, x = 12-2−3a-3b, Me is at least one of Na, K, Li, Ca ^1/2 , Mg ^1/2 and NH _4. (However, the molar ratio of Na / Ca is 1.0 or more.) (C) A component is a sulfite, The cleaning composition in any one of Claims 1-6. The cleaning composition according to any one of claims 2 to 7, wherein the component (d) is a nonionic surfactant represented by the following general formula (II).
^{R 1 -X - [(EO)} n / (PO) m] -R 2 (II)
(Wherein R ¹ represents a hydrophobic group having 8 to 20 carbon atoms, —X— represents —O—, —COO—, —CONH—, EO represents an oxyethylene group, PO represents an oxypropylene group, and n and m represent This represents the average number of moles added, n is 3 to 20, and m is 0 to 6. The addition form of the EO group and PO group may be block or random, and R ² is a hydrogen atom or a carbon number of 1 to 6. It is a hydrocarbon group.) (A) α-sulfo fatty acid alkyl ester salt 3-30% by mass, (b) clay mineral 8-30% by mass, and (c) 0.1-2% by mass of reducing agent, (a) component / ( The mass ratio of the component b) is 1/6 to 4/3, the mass ratio of the component (b) / (c) is 100/1 to 6/1, and the mass ratio of the component (a) / (c) is 100. A detergent composition for color / patterned clothing that is / 1 to 2/1. (A) α-sulfo fatty acid alkyl ester salt 3-30% by mass, (b) clay mineral 8-30% by mass, and (c) 0.1-2% by mass of reducing agent, (a) component / ( The mass ratio of the component b) is 1/6 to 4/3, the mass ratio of the component (b) / (c) is 100/1 to 6/1, and the mass ratio of the component (a) / (c) is 100. A laundering method in which 5 to 10 g of the detergent composition for clothing that is 1 to 2/1 per 1 kg of clothing. (A) α-sulfo fatty acid alkyl ester salt 3-30% by mass, (b) clay mineral 8-30% by mass, and (c) 0.1-2% by mass of reducing agent, (a) component / ( The mass ratio of the component b) is 1/6 to 4/3, the mass ratio of the component (b) / (c) is 100/1 to 6/1, and the mass ratio of the component (a) / (c) is 100. A laundry method using the detergent composition for clothing that is 1 to 2/1 in a washing bath for clothing in which color / pattern clothing and white clothing are mixed.