JP2896218B2 - Liquid light detergent composition - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a liquid light detergent composition for clothing.

[Conventional technology / problems] For washing so-called fashionable clothes such as sweaters, cardigans and blouses made of wool or silk, besides the heavy detergent used for washing cotton clothing, neutral light Detergent is used.

The reason why the neutral light detergent is used is that the fibers constituting the fashionable clothes are susceptible to acids and alkalis, that the flexibility of washing is emphasized, and that shrinkage and shape loss are prevented.

The so-called hand-washing method, in which water or lukewarm water is poured into a washbasin or the like, a neutral light detergent is dissolved, and the clothes are immersed, is generally used for fashionable clothes in order to prevent shrinkage and shape loss. It was impossible to avoid the loosening of clothing and stiffness, often damaging precious fashionable clothes.

By using a softening agent, it is possible to avoid stiffness, but it is not possible to prevent sagging, and there has been a demand for the development of a stylishly worn cleaning composition that does not impair the feeling of washing.

Conventional techniques for improving washing flexibility include, for example, a combination of a nonionic surfactant, an amphoteric surfactant and a monoalkylammonium salt type cationic surfactant (JP-B-59-14077). Ionic surfactants,
A combination of a mono- or dialkylammonium salt type cationic surfactant and an anionic synthetic high molecular compound (Japanese Patent Application Laid-Open No. 1-126992) may be mentioned.

However, those using a monoalkylammonium salt type cationic surfactant, typified by the composition disclosed in JP-B-59-14077, do not show sufficient flexibility and are disclosed in JP-A-1-132926. A composition using a dialkylammonium salt-type cationic surfactant, represented by the composition disclosed in the Japanese Patent Publication, exhibits excellent flexibility, but is inferior in low-temperature stability and cannot produce a transparent composition. Met.

Accordingly, an object of the present invention is to provide a transparent liquid light detergent composition which exhibits excellent flexibility, good texture at the time of finishing, and excellent low-temperature stability.

[Means for Solving the Problems] As a result of intensive studies on the above problems, the present inventors have completed the present invention.

That is, the present invention provides a compound represented by the following general formula: R ₁ O (CH ₂ CH ₂ O) _n H (I) wherein R ₁ represents a linear or branched alkyl group having 8 to 22 carbon atoms; n represents a number of 5 to 20) with respect to 100 parts by weight of the nonionic surfactant represented by the following formula: (Wherein, R ₂ and R ₃ may be the same or different and each is a linear or branched alkyl or alkenyl group having 10 to 24 carbon atoms, and R ₄ and R ₅ may be the same or different 1 to 100 parts by weight of a cationic surfactant having one or more quaternary ammonium salts represented by the following formulas, and having an iodine value of 60 to 100 as a whole, (A) one or more selected from (b) and (c) (a) 0.1 to 50 parts by weight of water-soluble silicone (b) 0.1 to 50 parts by weight of homopolymer and / or copolymer of dialkyldiallylammonium salt Part (c) A liquid light detergent composition comprising 1 to 600 parts by weight of an amphoteric surfactant and 50 to 2000 parts by weight of water.

The nonionic surfactant used in the present invention is represented by the above general formula (I), wherein R ₁ has 8 carbon atoms.
Polyoxyethylene alkyl ethers having up to 22, preferably 10 to 18 linear or branched alkyl groups and having 5 to 20 moles, preferably 8 to 12 moles of ethylene oxide added thereto.

If the number of carbon atoms of R ₁ is less than the above, sufficient detergency cannot be obtained, and if the number of carbon atoms of R ₁ exceeds the above, the low-temperature stability decreases.

If the number of moles of ethylene oxide is less than the above, the low-temperature stability is significantly deteriorated, and if the number of moles of ethylene oxide exceeds the above, the foaming power and detergency of the detergent composition are reduced.

Cationic surfactants for use in the present invention is a quaternary ammonium salt represented by the general formula (II), R ₂ and
R ₃ is an alkyl or alkenyl group having 10 to 24, preferably 16 to 22 carbon atoms, and R ₂ and R ₃ may be the same or different.

When the number of carbon atoms of R ₂ or R ₃ is less than the above, the texture at the time of finishing is inferior, and when the number of carbon atoms of R ₂ or R ₃ exceeds the above, low-temperature stability decreases.

R ₄ and R ₅ are a methyl group or an ethyl group, and may be the same as or different from R ₄ and R ₅ .

The quaternary ammonium salt represented by the general formula (II) is, for example, an unsaturated higher fatty acid such as oleic acid, linoleic acid or linolenic acid, or a natural oil such as palm oil fatty acid, soybean oil fatty acid, safflower oil fatty acid or tall oil fatty acid. Fatty acids or a mixture thereof, or a mixture thereof with a saturated higher fatty acid such as tallow fatty acid is used as a starting material and produced by a conventional method.

In the present invention, it is particularly necessary that the quaternary ammonium salt has an iodine value of 60 to 100, preferably 70 to 90.

If the iodine value is less than the above, the low-temperature stability is remarkably deteriorated.

The cationic surfactant component used in the present invention is blended in an amount of 1 to 100 parts by weight, preferably 10 to 50 parts by weight, and most preferably 15 to 35 parts by weight based on 100 parts by weight of the nonionic surfactant. .

If the amount of the component is less than the above-mentioned amount, the texture at the time of a sufficient finish, particularly, “fluffiness” cannot be obtained, and if the amount exceeds the above-mentioned amount, not only “stiffness” but also low-temperature stability decreases.

The components that can be used in the present invention are selected from the following (a), (b) and (c), and these can be used alone or in combination.

The water-soluble silicone (a) that can be used in the present invention is not particularly limited, as long as it is a polysiloxane modified with ethylene oxide, and various water-soluble silicones can be used. (Wherein m is a number from 2 to 100, preferably from 3 to 80,
n is a number of 2 to 15, preferably 3 to 10, R ₆ is an alkylene group having 1 to 4 carbon atoms, and R ₇ is 1 to 4 carbon atoms.
A is 3 to 50, preferably 5 to 35
And b is a number from 0 to 50, and preferably from 0 to 25), and a copolymer of dimethylsiloxane and methyl (polyoxyethylene / polyoxypropylene) siloxane.

The polymerization of dimethylsiloxane and methyl (polyoxyalkylene) siloxane in the above formula (III) may be random or block-like, and the repetition of polyoxyethylene and polyoxypropylene in the (polyoxyalkylene) siloxane unit may be random. Shape or block shape.

The water-soluble silicone represented by the above formula (III) is most preferably m = 3 to 8 and n = 5 when b = 0 in the formula.
10, a = 5 to 10 is good, and if b = 1 to 14, m = 5 to 6
0, n = 4 to 9, and a = 8 to 30 are good. When b = 15 to 25, m = 60 to 80, n = 3 to 8, and a = 25 to 35 are good.

When the water-soluble silicone (a) is used in the present invention, 0.1 to 50 parts by weight based on 100 parts by weight of the nonionic surfactant regardless of the presence of other components [i.e., (a) or (c)]. Parts, preferably 0.3 to 7 parts by weight, most preferably 0.3 to 4 parts by weight.

If the amount of the water-soluble silicone (a) is less than the above amount, the texture at the time of a sufficient finish, especially “good skin feel”
When the amount exceeds the above range, a "slimy feeling" is generated and the texture is rather deteriorated.

The homopolymer and / or copolymer (b) of the dialkyldiallylammonium salt that can be used in the present invention is not particularly limited as long as it can be used for a detergent composition. ) Wherein R ₈ and R ₉ may be the same or different and are a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, preferably a hydrogen atom or an alkyl group having 1 to 2 carbon atoms,
R ₁₀ and R ₁₁ may be the same or different and are an alkyl group having 1 to 3 carbon atoms or a hydrogen atom, and X is a halogen (preferably chlorine or bromine), an inorganic acid residue (preferably a sulfuric acid residue). , A nitric acid residue) and an organic acid residue (preferably a methylsulfuric acid residue or a hydroxycarboxylic acid residue), for example, a homopolymer obtained in the same manner as ordinary radical polymerization. (However, the homopolymer referred to here is one or more polymers of the dialkyldiallylammonium salt represented by the above general formula) or one of the dialkyldiallylammonium salts represented by the above general formula or 2 or more of the general formula _{R 12 -CH = CH-CO-} T ·· (V) ( wherein, R ₁₂ is a hydrogen atom or a methyl group, T is -O
H or —NH ₂ )
Copolymers obtained by polymerizing at least one species with the same as above can be given.

The molecular weight of the homopolymer and / or copolymer that can be used in the present invention is not particularly limited, but is preferably 5,000 to 1,300,000 from the viewpoint of the texture at the time of finishing.
Is good.

The homopolymer and / or copolymer which can be used in the present invention is preferably a homopolymer and / or copolymer of dimethyldiallylammonium halide, and particularly preferably a homopolymer and / or copolymer of dimethyldiallylammonium chloride. Is good.

Specific examples of such a homopolymer or copolymer include, for example, MERQUAT100 (registered trademark: manufactured by MERCH).
Dimethyldiallylammonium chloride polymer), ME
MERQUAT500 (registered trademark: dimethyldiallylammonium chloride / acryloamide copolymer) manufactured by RCH can be mentioned, and a copolymer with amide is preferable as the copolymer.

When the above copolymer is used, the proportion of the monomer represented by the general formula (V) among the monomers constituting the homopolymer and / or copolymer (b) of the dialkyldiallylammonium salt accounts for 50% by weight or less, preferably Is preferably 45% by weight or less.

When the homopolymer and / or copolymer (b) of the dialkyldiallylammonium salt is used in the present invention, the nonionic surfactant is used irrespective of the presence of other components [ie, (a) or (c)].
0.1 to 50 parts by weight, preferably 0.3 to 7 parts per 100 parts by weight
Parts by weight, most preferably 0.3 to 4 parts by weight.

If the amount of (b) is less than the above-mentioned amount, a texture at the time of a sufficient finish, especially “good texture” cannot be obtained, and if the amount exceeds the above-mentioned amount, “stiffness” occurs.

The amphoteric surfactant (c) that can be used in the present invention is not particularly limited, but is preferably a betaine-type amphoteric surfactant and / or an imidazoline-type amphoteric surfactant, and is preferably a betaine-type amphoteric surfactant. As the activator, particularly the general formula [Wherein, R ₁₃ is an alkyl group having 7 to 19 carbon atoms, preferably 10 to 16 carbon atoms, R ₁₄ and R ₁₅ are alkyl groups having 1 to 4 carbon atoms, and Q is 4 is a divalent group selected from the group consisting of an alkylene group of 4 and a hydroxyalkylene group having 2 to 3 carbon atoms, wherein Z is -COO or -S
O ₃ (where, when Z is —COO, Q is an alkylene group having 1 to 4 carbon atoms), m is 0 or 1, and n is a number of 2 to 5]. Betaine-type amphoteric surfactants such as decylbetaine (ie, N-decyldimethylglycine), laurylbetaine, cetylbetaine, stearylbetaine, cocobetaine, cocoamidopropylbetaine [ie, N- (coconut oil acylaminopropyl) ) -N, N-dimethyl-2-aminoacetate], laurylamidopropylbetaine, myristylamidopropylbetaine, palmitylamidopropylbetaine, stearylamidoethylbetaine and the like.

In addition, as the imidazoline type amphoteric surfactant, particularly, a general formula Wherein R ₁₆ represents an alkyl group having 10 to 20 carbon atoms,
₁₇ is a hydrogen atom, a -CH ₂ COOM, G is -COOM, -CH ₂ CO
OM or —CH (OH) CH ₂ SO ₃ M (where M
Represents Na or H)]], and is preferably an imidazoline-type amphoteric surfactant represented by the formula: coconut oil alkyl-N-carboxymethoxyethyl-N-carboxymethylimidazolinium betaine, coconut oil alkyl-N-carboxymethyl- N-hydroxyethyl imidazolinium betaine and the like can be mentioned.

When the amphoteric surfactant (c) is used in the present invention, regardless of the presence of other components [ie, (a) or (b)], 1 to 100 parts by weight of the nonionic surfactant is used. 600 parts by weight, preferably 6 to 50 parts by weight, most preferably 6 to 35 parts by weight.

If the amount of the component (c) is less than the above-mentioned amount, a sufficient texture at the time of finishing, especially “good texture” cannot be obtained, and if the amount exceeds the above-mentioned amount, foaming during washing is severe and not practical.

As a component to be blended in the present invention, water is blended in an amount of 50 to 2000 parts by weight per 100 parts by weight of the component.

When the amount of water is less than the above amount, the composition of the present invention has low-temperature stability, and when the amount exceeds the above amount, the low-temperature stability is deteriorated.

The liquid light detergent composition of the present invention is used by diluting with water so as to have a desired concentration when actually used for washing clothes and the like, and preferably has a water content of 20%.
0 to 1500 parts by weight, more preferably 400 to 600 parts by weight, is favorable in dispersibility and workability at the time of use dilution.

In addition to the above essential components, other optional components can be added to the liquid light detergent composition of the present invention, if necessary, as long as the effects of the present invention are not affected. For example, lower alcohols such as ethanol, glycols such as propylene glycol, solubilizers such as urea, preservatives,
Examples thereof include a metal ion scavenger, an inorganic electrolyte, a dye, and a fragrance. However, these are not particularly limited, and may be selected and blended according to the purpose within a range that can be blended with a general detergent.

[Examples] Hereinafter, the present invention will be described more specifically with reference to Examples, but the present invention is not limited thereto.

Prior to the description of each example, the adopted evaluation method will be described below.

<Low temperature stability> 100 ml of each composition was collected in a 100 ml glass bottle, and after sealing, -5
Visually observe the appearance after storage at 24 ° C for 24 hours. The criteria at this time are as follows.

○ ・ ・ ・ Transparent liquid × ・ ・ ・ Opaque or frozen <Texture at the time of finish> In a basin with a capacity of about 10, 12.5 ml of each of the composition shown in Table 1
Then, put a washing liquid at 25 ° C to which water 5 was added and a commercial sweater (M size for men: 80% wool, 20% nylon),
Press and wash at a rate of 30 times a minute for 5 minutes.
Pour tap water 5 at 25 ° C. and rinse in the same manner by pressing for 3 minutes. After rinsing twice with changing water, dehydrate for 15 seconds, and then dry flat. After drying, a sensory evaluation was performed for plumpness and skin feel.

The sensory evaluation was evaluated as an average score of six panelists according to the following criteria in comparison with a commercially available light liquid detergent.

Very excellent +2 points Good +1 point Same 0 points Inferior -1 point Clearly inferior -2 points A liquid light detergent composition having the composition shown in Table 1 was prepared and evaluated according to the above method. did. The results are shown in Table 1.

In addition, all the numbers in Table 1 are weight%, and the specific compound name of a composition is as follows. In the following, EO means ethylene oxide and PO means propylene oxide.

Nonionic surfactant 1 Coconut oil-derived higher alcohol polyoxyethylene adduct (EO 8 mole addition) Nonionic surfactant 2 Coconut oil-derived higher alcohol polyoxyethylene adduct (EO 3 mole addition) Nonionic surfactant 3 Polyoxy Ethylene nonyl phenyl ether (10 mol of EO added) Cationic surfactant 1 (Wherein, R represents an alkyl group or an alkenyl group having 18 carbon atoms, and its iodine value is 80) Cationic surfactant 2 (Wherein, R represents an alkyl group or an alkenyl group having 18 carbon atoms, and its iodine value is 50). Cationic surfactant 3 N- (3-lauroyl-2-hydroxypropyl) triethylammonium chloride Cationic surfactant Agent 4 N- (3-lauroyl-2-hydroxypropyl) dimethylstearylammonium chloride water-soluble silicone 1 Trade name: Silwet L-7600 (manufactured by Nippon Unicar) [dimethylsiloxane / methyl (polyoxyethylene) siloxane copolymer ( EO 5 to 10 mol)] Water-soluble silicone 2 Brand name: Silwet L-7001 (manufactured by Nippon Unicar) [Dimethylsiloxane / methyl (polyoxyethylene) siloxane / methyl (polyoxypropylene) siloxane copolymer (EO25 to 35) Mole addition, PO 15-25 mole addition)] Cationic polymer 1 dimethyldiallylammonium chloride homopolymer (average molecular weight of 50,000) of a cationic polymer 2 Product Name: MERQUAT550 [dimethyldiallylammonium chloride and copolymers of Akuriroamaido (average molecular weight of about 500,000, manufactured MERCH Co.) amphoteric surfactant 1 (Wherein, R represents an alkyl group having 7 to 17 carbon atoms) Amphoteric surfactant 2 (Wherein, R represents an alkyl group having 7 to 17 carbon atoms) Amphoteric surfactant 3 (Wherein, R represents an alkyl group having 7 to 17 carbon atoms) [Effect of the Invention] The effect of the present invention is to provide a transparent liquid light detergent composition which exhibits excellent flexibility, has a good texture at the time of finishing, and has excellent low-temperature stability.

Continued on the front page (51) Int.Cl. ⁶ Identification code FI C11D 1:72 1:90) (72) Inventor Etsumasa Nishiyama 7-35 Higashiogu, Arakawa-ku, Tokyo Asahi Denka Kogyo Co., Ltd. (56 References JP-A-63-15900 (JP, A) JP-A-2-103291 (JP, A) JP-A-57-105497 (JP, A) JP-A-2-1455862 (JP, A) (58) Surveyed fields (Int.Cl. ⁶ , DB name) C11D 17/08 C11D 1/94 C11D 1/62-1/72 C11D 1/90 C11D 3/37 WPI / L (QUESTEL)

Claims (1)

(57) [Claims] An essential component is a compound represented by the following general formula: R ₁ O (CH ₂ CH ₂ O) _n H (I) wherein R ₁ is a linear or branched alkyl having 8 to 22 carbon atoms. Represents a group, and n represents a number of 5 to 20), and 100 parts by weight of the nonionic surfactant represented by the general formula: (Wherein, R ₂ and R ₃ may be the same or different and each is a linear or branched alkyl or alkenyl group having 10 to 24 carbon atoms, and R ₄ and R ₅ may be the same or different 1 to 100 parts by weight of a cationic surfactant having one or more quaternary ammonium salts represented by the following formulas, and having an iodine value of 60 to 100 as a whole, (A) one or more selected from (b) and (c) (a) 0.1 to 50 parts by weight of water-soluble silicone (b) 0.1 to 50 parts by weight of homopolymer and / or copolymer of dialkyldiallylammonium salt Part (c) A liquid light detergent composition comprising 1 to 600 parts by weight of an amphoteric surfactant and 50 to 2000 parts by weight of water.