JPH07292389A - Cleaning agent composition for clothes - Google Patents

Abstract

PURPOSE:To produce a cleaning agent composition for clothes effective for preventing the dissolution of dye from dyed clothes, the transfer of color to white clothes in the cleaning bath, the re-staining of the cleaned clothes and the adsorption of iron by adding a cationie surfactant and a water-soluble magnesium salt to a nonionic surfactant. CONSTITUTION:This cleaning agent composition contains (A) 5-40wt.% of a nonionic surfactant, (B) 0.05-4wt.% of a cationic surfactant and (C) 0.5-20wt.% of a water-soluble magnesium salt. The component A is preferably e.g. an EO addition-type nonionic surfactant (alkyl ether ethoxylate) produced by adding 6-25mol% of ethylene oxide (EO) on an average to a 8-18C primary or secondary alcohol, an EO-PO addition-type nonionic surfactant produced by adding 10-25mol% of the EO on an average and 1-10mol% of propylene oxide (PO) or an ether of formula (R1C=0 is a 8-18C fatty acid residue; (n) is molar number of added ethylene oxide; R2 is a 1-5C alkyl).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition for clothes which can prevent color transfer and redeposition.

[0002]

2. Description of the Related Art When washing colored clothing, there is a problem that the dye is detached from the colored clothing during washing. When the colored clothing and the white clothing are washed in the same bath, the detached dye is removed. The problem of color transfer (transfer) to white clothing occurs. Especially in recent years
Due to the simplification of the dyeing process to reduce the cost of clothing and the increase in some overseas products with immature dyeing technology, detachment of dye and color transfer during washing have become serious problems. There is.

Several solutions have conventionally been proposed for these problems. One of them is JP-A-61-27.
No. 6898, it is disclosed that an effect of preventing color transfer can be obtained by blending a nonionic surfactant, a water-soluble cationic surfactant, polyvinylpyrrolidone and a strong electrolyte in an amount of 10% or less.

However, it has been confirmed that color transfer occurs at almost the same level not only in strong electrolytes such as sulfates and polyphosphates shown in 1) but also in other electrolytes. For example, sodium carbonate and sodium silicate as alkaline agents are essential components of detergents for clothes to improve detergency, but they cause color transfer to the same extent as strong electrolytes such as sodium sulfate and sodium chloride. . Further, the above-mentioned detergent composition described in JP-A-61-276898 has new problems such as recontamination of synthetic woven fabric (particularly polyester) by addition of a cationic surfactant and adsorption of iron in tap water. It may cause and is not preferable. In addition,
Recontamination refers to a phenomenon in which dirt that has once fallen due to washing reattaches to and contaminates clothing in the bath.

[0005]

DISCLOSURE OF THE INVENTION The present invention relates to a detergent composition for clothes, in which the dye is desorbed from the colored clothes and the white clothes in the same bath without causing recontamination and adsorption of iron. The purpose is to prevent color transfer to.

[0006]

The detergent composition for clothes of the present invention is characterized by containing the following components (a), (b) and (c). (A) Nonionic surfactant: 5 to 40% by weight. (B) Cationic surfactant: 0.05 to 4% by weight. (C) Water-soluble magnesium salt: 0.5 to 20% by weight. It is characterized by containing.

According to the present invention, by adding a cationic surfactant and a water-soluble magnesium salt to a detergent system containing a nonionic surfactant as a main component, various electrolytes (alkaline agents) required for a detergent composition are added. , Chelating agents, powder property improvers, etc.), it is possible to prevent desorption of dye from colored clothing and color transfer to white clothing in the same bath, and by adding magnesium salt. Recontamination prevention effect,
The effect of preventing iron adsorption is obtained at the same time. As a result, it has become possible to construct an ideal nonionic surfactant-based detergent composition.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The nonionic surfactant as the component (a) is compounded in the detergent composition of the present invention in an amount of 5 to 40% by weight, preferably 10 to 35% by weight, more preferably 15 to 30% by weight. It If the content is less than 5% by weight, sufficient detergency cannot be obtained, while if it exceeds 40% by weight, the performance will be saturated.

The following are examples of the nonionic surfactant as the component (a). 1) An EO-added nonionic surfactant (alkyl ether ethoxylate) obtained by adding 6 to 25 mol of ethylene oxide (EO) on average to a primary or secondary alcohol having 8 to 18 carbon atoms. 2) E prepared by adding 10 to 25 mol of ethylene oxide (EO) and 1 to 10 mol of propylene oxide (PO) on average to a primary or secondary alcohol having 8 to 18 carbon atoms.
O-PO addition type nonionic surfactant. 3) Fatty acid polyoxyethylene alkyl ether represented by the general formula (I)

[0010]

[Chemical 1] n: shows the number of moles of ethylene oxide added, 5 to 3 on average
Number of 0 R ₂ : alkyl group having 1 to 5 carbon atoms)

This nonionic surfactant is an alkyl ether of an ethylene oxide adduct of a fatty acid in which ethylene oxide is added during the ester bond, and ethylene oxide is added to the fatty acid by a conventional method, followed by alkyl etherification. The presence of a catalyst composed of magnesium oxide to which one or more metal ions selected from, for example, trivalent aluminum ions, gallium ions, indium ions, thallium ions, and divalent manganese ions are added. It can also be produced by a one-step method in which a fatty acid alkyl ester and ethylene oxide are reacted below (JP-A-4-279552).

4) A sugar ester nonionic surfactant comprising an ester of a C6-18 fatty acid and a C5-6 monosaccharide or a monoalkyl ether thereof. 5) A sugar alkyl ether-based nonionic surfactant represented by the general formula (II) of Chemical formula 2.

[0013]

Embedded image R ₁ O (CH ₂ CH ₂ O) n (Z) x (II) (R ₁ : an alkyl group having 8 to 18 carbon atoms, n: 0 to 12 Z: sugar residue having 5 to 6 carbon atoms Group x: 1.2 to 10)

6) Alkanolamides of fatty acids having 8 to 18 carbon atoms. 7) Alkyl (C8-18) dimethylamine oxide. The cationic surfactant as the component (b) is contained in the detergent composition of the present invention in an amount of 0.05 to 4% by weight, preferably 0.2 to 3% by weight, and more preferably 0.5 to 2.5% by weight. Be compounded. If the blending amount is less than 0.05% by weight, it is difficult to expect the effect of preventing discoloration of color clothing, and conversely, if it is increased, the effect of preventing redeposition of stains and Fe adsorption cannot be obtained even when magnesium salt is used in combination. .

Specific examples of the cationic surfactant as the component (b) include the following. 1) A di-long chain alkyl quaternary ammonium salt represented by the general formula (III)

[0016]

[Chemical 3] _{(R 1, R 2: C} 6 represents an alkyl or alkenyl group -C _26, the alkyl or alkenyl group is an ester bond, an amide bond, optionally R ₃ have an ether bond or the like in chain length , R ₄ : C _{1 to} C ₄ alkyl group, benzyl group, C ₂ to
C ₄ hydroxyalkyl group or polyoxyalkylene group X: halogen, CH ₃ SO ₄ , C ₂ H ₅ SO ₄ or CH ₃
-Φ-SO ₃ (φ represents a benzene ring, and SO ₃ is bonded to the p-position with respect to CH ₃ )) 2) Mono-long-chain alkyl quaternary represented by the general formula (IV) of Chemical formula 4 Ammonium salt

[0017]

[Chemical 4] (R _{1 represents a} C ₆ -C ₂₀ alkyl group or alkenyl group, which may have an ester bond, an amide bond, an ether bond or the like in the chain length R ₂ , R ₃ , R ₄ : a C ₁ -C ₄ alkyl group, a benzyl group,
C ₂ -C ₄ hydroxyalkyl group or a polyoxyalkylene group X: _{halogen, CH 3 SO 4, C 2} H 5 SO 4 or CH ₃
-Φ-SO ₃ (φ represents a benzene ring, SO ₃ is bonded to the p-position with respect to CH ₃ )) 3) The imidazolinium salt represented by the general formula (V) of Chemical formula 5

[0018]

[Chemical 5] (R _1: C ₆ alkyl group or alkenyl group -C ₂₀ R _2: hydrogen, C ₁ -C ₁₈ alkyl or alkenyl radical R _3: an alkyl or alkenyl group of C ₆ -C _20, the alkyl The group or alkenyl group may have an ester bond, an amide bond, an ether bond or the like in the chain length X: halogen, CH ₃ SO ₄ , C ₂ H ₅ SO ₄ or CH ₃
-Φ-SO ₃ (φ represents a benzene ring, SO ₃ is bonded to the p-position with respect to CH ₃ )) 4) An alkylpyridinium salt represented by the general formula (VI)

[0019]

[Chemical 6] (R: C ₆ -C ₁₈ alkyl group or alkenyl group X: halogen, CH ₃ SO ₄ , C ₂ H ₅ SO ₄ or CH ₃
-Φ-SO ₃ (φ represents a benzene ring, and SO ₃ is bonded to the p-position with respect to CH ₃ ))

The water-soluble magnesium salt as the component (c) is blended in the detergent composition of the present invention in an amount of 0.5 to 20% by weight, preferably 1 to 15% by weight, more preferably 2 to 10% by weight. . The water-soluble Agnesium salt needs to be dissolved at the concentration used. If the blending amount is less than 0.5% by weight, the effect of trapping the dye detached from the clothing and preventing the adsorption to the fiber is poor, while if it exceeds 20% by weight, the cleaning effect of the nonionic surfactant is obtained. Adversely affect.

As the water-soluble magnesium salt as the component (c), anhydrous salts and hydrous salts of inorganic magnesium salts such as magnesium chloride, magnesium nitrite, magnesium nitrate and magnesium sulfate are used.

In the present invention, in addition to the above-mentioned components (a), (b) and (c), other detergent components usually contained in laundry detergent compositions can be contained. Examples of these other components include inorganic builders such as sodium tripolyphosphate and sodium pyrophosphate; aluminosilicate (zeolite), sodium citrate, sodium ethylenediaminetetraacetate, nitrilotriacetate, sodium polyacrylate, acrylic acid. Sodium-sodium maleic anhydride copolymer, calcium ion trapping builder such as polyacetal carboxylate; Alkali builder such as sodium carbonate, potassium carbonate, silicate; Sulfite, sulfate; Anti-redeposition agent such as polyethylene glycol; Protease, Enzymes such as lipase, cellulase and amylase; softening agents such as quaternary ammonium salts and bentonite; bleaching agents, fluorescent agents, perfumes, dyes and the like can be used. The detergent composition of the present invention preferably contains substantially no anionic surfactant.

[0023]

According to the present invention, a nonionic surfactant,
By incorporating a cationic surfactant and a water-soluble magnesium salt into a detergent composition for clothes, it is possible to prevent the dye from being detached from the colored clothes and the color transfer to the white clothes in the same bath. Moreover, the effect of preventing recontamination and the effect of preventing iron adsorption can be obtained at the same time, and it becomes possible to construct an ideal nonionic surfactant-based detergent composition.

[0024]

EXAMPLES The effects of the present invention will be described more specifically below with reference to examples. Prior to this, the evaluation method used in the examples will be shown. The dyed cloths and white cloths used for the decolorization (discoloration) / transfer (color transfer) / recontamination / Fe adsorption experiments are shown below.

1) Dyeing Cloth As a standard dyeing cloth, cotton (weaving is knit) and reactive dye (Sumitomo Chemical Co., Ltd.) Sumifix Supra blue (BL
UE BRF Color Index REACTIVE
BLUE 221) was used. These are dyeing density 4
% (Owf.) Was used as a standard cloth.

2) White cloth As a white cloth, Yuka Kyofu (test cloth designated by the Japan Oil Chemistry Association) was used (at the time of recontamination and Fe adsorption experiment, plain weave polyester was also added). Using this test cloth, transfer tests (color transfer), recontamination, and Fe adsorption experiments were conducted.

1. Decolorization Experiment Evaluation Method Assuming complaints from consumers regarding discoloration 40
C, 1 hour, cleaning agent concentration 5000ppm (6 times concentration),
The experiment was conducted at a bath ratio of 50 times (100 g of dyed cloth / 5 L detergent solution). After completion of the washing, the washing liquid was filtered with 0.45μ filter paper, and then the dye concentration was measured with an absorptiometer (Hitachi 228).

2. Dyeing experiment evaluation method Assuming complaints from consumers regarding color transfer 40
C, 1 hour, cleaning agent concentration 5000ppm (6 times concentration),
The experiment was conducted with a bath ratio of 20 times (100 g of dyed cloth + 10 g of white cloth + 140 g of balanced cotton cloth / 5 L detergent solution). After the completion, the transferred white cloth was rinsed / dehydrated with 30 L of water at 25 ° C. for 3 minutes, dried with an iron, and visually evaluated (evaluated in blue). Evaluation score Criteria A No migration is observed. B Very slightly recognized. C Clearly transfer is observed. D Violent migration is observed.

3. Recontamination Evaluation Method A shirt with worn skin was used as dirt for recontamination evaluation. 25
Washing at 10 ° C. for 10 minutes, cleaning agent usage 833 ppm (standard usage concentration), bath ratio 30 times (recontamination evaluation cloth (cotton 10 g, polyester 10 g) + wearing shirt 980 g / 30 L detergent solution) . After finishing, put on the recontamination evaluation cloth 3
After rinsing and dehydrating for minutes, it was dried with an iron and visually evaluated (evaluated by darkening). Evaluation score Criteria A No recontamination is observed. B Very slightly recognized. C Clearly recontamination is observed. D Violent recontamination is observed.

4. Fe adsorption evaluation method Nail iron water was used as dirt for Fe adsorption evaluation. Iron nail 1kg
Is immersed in 20 L of ion-exchanged water for 48 hours, and the amount of iron eluted is measured to give a stock solution. Adjusted to 25 ℃, 30L, Fe concentration of 10ppm, cleaning agent usage 833p
pm (standard use concentration), bath ratio 30 times (Fe adsorption evaluation cloth (cotton 10 g, polyester 10 g) + balance skin shirt 980 g), washed for 10 minutes, rinsed for 3 minutes, (30
L, 10 ppm Fe). After the completion, it was dehydrated, dried with an iron, and visually evaluated (evaluated by redness). Evaluation score Standard A No Fe adsorption is observed. B Very slightly recognized. C Fe adsorption is clearly observed. D Vigorous Fe adsorption is observed.

Example A detergent composition for clothes having the composition shown in Table 1 below was produced. In this production, each component was mixed with a high speed mixer to obtain a granular detergent composition having a high bulk density. With respect to these compositions, the amount of decolorization, dye transfer (color transfer), recontamination, and Fe adsorption amount were evaluated, and the results are shown in Table 2.

[0032]

[Table 1] Table 1: Comparative example of cleaning composition Example Example No. 1 2 3 4 5 6 7 8 9 10 11 12 Composition (wt%): Nonionic activator AE Nonion 25 25 25 25-25 25 25 25 25 25 15 35 FME Nonion − − − − 25 − − − − − − − Cation activator Cation 1 1.5 − 5 1.5 − 1.5 1.5 1.5 1.5 4 4 4 Cation 2 − 1.5 − − 1.5 − − − − − − − Mg Salt Sulfuric acid Mg (heptahydrate) − − 20 5 − 0.5 1 2 2 10 10 10 Mg chloride (anhydrous salt) − − − − 5 − − − − − − − Optional component Zeolite 30 30 30 30 30 30 30 30 30 30 30 30 Sodium carbonate 10 Blc 10 10 10 10 10 10 10 10 10 10 Potassium carbonate 5 5 5 5 5 5 5 5 5 5 5 5 Cellulase 1 1 1 1 1 1 1 1 1 1 1 1 Lipalase 1 1 1 1 1 1 1 1 1 1 1 1 Protease 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Perfume BBBBBBBBBBBBBB fluorescent agent 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Na sulfate Blc − Blc balance PVP 4 − − − − − − − 4 −−− Moisture 7 7 7 7 7 7 7 7 7 7 7 7 7 AE Nonion: Average 12 mono-adducts of ethylene oxide of linear alcohol having 12 carbon atoms FME nonion: Of fatty acid methyl ester having 12 carbon atoms of fatty acid residue Ethylene oxide average 12 mol adduct Cation 1: Dioildimethylammonium chloride Cation 2: Dipalmityldimethylammonium chloride Ble: Balance

[0033]

[Table 2]Table 2: Evaluation results Comparative example Example Sample No. 1 2 3 4 5 6 7 8 9 10 11 12 Evaluation results Decolorization amount (ppm) 20 10 5 10 12 17 15 12 12 7 7 7 Transfer dye C C A A B B B B A A A A Recontamination C C C A A B B B A A B B B A Fe adsorption amount D D D A A C B A A B B B B AE nonion: C12 straight chain alcohol ethylene
Oxide average 12 mono-adducts FME nonion: fatty acid residue with 12 carbon atoms in fatty acid residue
Ethyl oxide average 12 mol adduct of tyl ester Cation 1: Dioil dimethyl ammonium chloride Cation 2: Dipalmityl dimethyl ammonium chloride
De Ble: Balance

Claims (1)

[Claims] 1. Containing (a) nonionic surfactant: 5-40% by weight (b) cationic surfactant: 0.05-4% by weight (c) water-soluble magnesium salt: 0.5-20% by weight A detergent composition for clothes, comprising: