JPH0959671A - Detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a detergent compsn. excellent in detergency, softness and low-temp. stability without detriment to a voluminous feel after finish of washing by blending a specific nonionic surfactant with a specific cationic surfactant and no anionic surfactant at a predetermined proportion. SOLUTION: This detergent comprises (A) 20-50wt.% nonionic surfactant of formula I: R<1> O-(CH2 H4 O)m H wherein R<1> is an alkyl, an alkenyl, an alkylaryl, or an acyl; and (m) is 1 to 100), (B) 3-20wt.% cationic surfactant of formula II(wherein R<2> , R<3> and R<5> are at least 1 kind of an alkyl, an alkenyl and an alkylaryl; R<4> is an alkylene; and X is a halogen or an anionic atomic group), and the balance contg. no anionic surfactant. The (A):(B) blending proportion is 10:1 to 1:1 in terms of wt. ratio. The compsn,. further comprises 1-20wt.% blend stabilizer of formula III: R<6> O-(R<7> -O)n H (wherein R<6> is an alkyl, an alkenyl, an alkylaryl, or an acyl; R<7> is at least 1 kind of an alkylene; and (n) is 1 to 100).

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a novel detergent composition.

[0002]

2. Description of the Related Art Generally, a neutral light detergent is used for washing fashionable clothes such as sweaters, cardigans and blouses made of wool or silk. The reason why the neutral light detergent is used is that the fibers constituting the fashionable clothes are weak against acid and alkali, importance is attached to the flexibility after washing, and shrinkage and deformation are prevented. In recent years, due to the resource saving of containers, efficiency of transportation, convenience of carrying along with the increase of housewives,
There is an increasing demand for high-concentration detergents that are used only once.

As a conventional technique relating to a liquid light detergent for clothes, for example, a combination of a nonionic surfactant, an amphoteric surfactant and a monoalkylammonium salt type cationic surfactant (Japanese Patent Publication No. 59-14077), Nonionic surfactant, a combination of a mono- or dialkyl ammonium salt type cationic surfactant and an anionic synthetic polymer (JP-A-1-132692), a nonionic surfactant,
Combination of fatty acid polyglycol diester and imidazoline type quaternary ammonium type cationic surfactant
(Japanese Patent Publication No. 59-3518), a combination of a nonionic surfactant, an imidazoline type quaternary ammonium type cationic surfactant, and a carboxylic acid type anionic surfactant (JP-A-1-14496). To be

However, those using a monoalkylammonium salt type cationic surfactant represented by the composition disclosed in Japanese Examined Patent Publication No. 59-14077 do not show sufficient flexibility, and the method disclosed in Japanese Patent Laid-Open No. What uses a dialkylammonium salt type cation surfactant typified by the composition disclosed in 132692, and an imidazoline quaternary ammonium cation represented by the composition disclosed in Japanese Patent Publication No. 59-3518. A composition using a surfactant shows excellent flexibility, but it does not give a sufficient feeling of volume (fluffiness) after washing, and is inferior in low temperature stability. Was impossible to build. Further, those using an anionic surfactant and a cationic surfactant disclosed in JP-A No. 1-144496,
Precipitation when high concentration of cationic surfactant is used,
There was a problem with gelation and low temperature stability.

Therefore, the object of the present invention is to provide excellent detergency,
Shows flexibility and volume after washing (fluffiness)
To provide a high-concentration transparent liquid light detergent composition which is excellent in low-temperature stability and which uses a cationic surfactant at a high concentration and which has a smaller usage amount per time than conventional products. .

[0006]

The present inventors have arrived at the present invention as a result of extensive studies to solve the above problems.
That is, the present invention provides, as the component (1), a compound represented by the general formula

Embedded image R ¹ O— (C ₂ H ₄ O) _m H (1) (In the formula, R ¹ represents an alkyl group, an alkenyl group, an alkylaryl group or an acyl group, and m is 1-100. A nonionic surfactant represented by
~ 50% by weight, and the general formula as component (2)

Embedded image (In the formula, R ² , R ³ and R ⁵ represent one kind or two or more kinds of alkyl groups, alkenyl groups or alkylaryl groups which may be the same or different, R ⁴ represents an alkylene group, X Is a halogen atom or an anionic atomic group) and contains 3 to 20% by weight of a cationic surfactant, and the balance does not include an anionic surfactant.

The detergent composition of the present invention further comprises the following components:
As (3), the general formula

Embedded image R ⁶ O— (R ⁷ —O) _n H (3) (In the formula, R ⁶ represents an alkyl group, an alkenyl group, an alkylaryl group or an acyl group, and R ⁷ represents one kind or two kinds. The above alkylene groups are represented, provided that R ⁷ is not an ethylene group at all, and n represents a number in the range of 1 to 100).

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION In the nonionic surfactant represented by the above general formula (1), R ¹ is any of an alkyl group, an alkenyl group, an alkylaryl group or an acyl group.

Examples of the alkyl group represented by R ¹ include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, isopentyl, neopentyl, tert-pentyl, hexyl, heptyl, octyl, 2-ethylhexyl and nonyl. , Decyl, undecyl, lauryl, tridecyl, isotridecyl, myristyl, palmityl, stearyl, docosyl, tetracosyl, triacontyl, 2-octyldodecyl, 2-dodecylhexadecyl, 2-tetradecyloctadecyl, monomethyl-branched-isostearyl and the like.

Examples of the alkenyl group include vinyl, allyl, propenyl, isopropenyl, butenyl,
Examples thereof include isobutenyl, pentenyl, isopentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, undecenyl, dodecenyl, tetradecenyl, oleyl and the like.

Examples of the alkylaryl group include phenyl, toluyl, xylyl, cumenyl, mesityl, benzyl, phenethyl, styryl, cinnamyl, benzhydryl, trityl, ethylphenyl, propylphenyl, butylphenyl, pentylphenyl, hexylphenyl, heptyl. Examples thereof include phenyl, octylphenyl, nonylphenyl, α-naphthyl and β-naphthyl groups.

Examples of the acyl group include groups in which a carbonyl group is bonded to the bonding terminal of the above-mentioned alkyl group, alkenyl group and alkylaryl group. Examples include acetyl, propionyl, butyryl, isobutyryl, valeryl, isovaleryl, pivalyl, lauroyl, myristoyl, palmitoyl, stearoyl, acryloyl, propioloyl, methacroyl, crotonoyl, oleiroyl, benzoyl, phthaloyl, succinyl, and the like.

Of these, if the number of carbon atoms in R ¹ is small, the detergency tends to decrease, and if it is too large, the low temperature stability tends to decrease, so the number of carbon atoms in R ¹ is preferably 6 to 3.
6, and more preferably 8-18.

In the general formula (1), m represents the degree of polymerization of the oxyethylene group and is a number in the range of 1-100. However, when the degree of polymerization is low, low-temperature stability is deteriorated, and when the degree of polymerization is high, the detergency of the detergent composition tends to be lowered. Therefore, m is preferably a number in the range of 5 to 30, more preferably 6 to 12. The number of ranges.

In the cationic surfactant represented by the general formula (2), R ² , R ³ and R ⁵ may be the same as or different from each other and may be one or more kinds of alkyl group, alkenyl group and alkylaryl. Is one of the groups. Specifically, the alkyl group, the alkenyl group, and the like exemplified for R ¹ .
It is the same as the alkylaryl group.

Among these, for R ² and R ⁵ ,
When the number of carbon atoms is small, the flexibility tends to decrease, so that the number of carbon atoms is preferably 8 to 24, more preferably 1
4 to 20.

Further, R ³ is preferably an alkyl group having 1 to 3 carbon atoms because it is difficult to quaternize nitrogen when the number of carbon atoms is large.

Further, R ⁴ is an alkylene group. The cationic surfactant represented by the general formula (2) usually uses dialkylenetriamine as a raw material, and R ⁴ is determined by the compound used as the raw material. However, since diethylenetriamine is easily available, R ⁴ Is preferably an ethylene group.

X is a halogen atom or an anionic atomic group, and is usually a counter ion atom when the compound of the general formula (2) is quaternized. Halogen atoms are fluorine, chlorine,
Examples of the anionic atomic group include bromine and iodine, and examples of the anion atomic group include a carboxylate anion, a nitrate anion, a hydrogen sulfate anion, an alkylsulfate anion, and a phosphate anion.
Among these, alkylsulfate anion and chlorine useful as a quaternizing agent are preferable.

In the cleaning composition of the present invention, the components
The compounding amount of (1) is 20 to 50% by weight, preferably 25 to 40% by weight, based on the whole composition. When the amount of the nonionic surfactant which is the component (1) is small, sufficient detergency cannot be obtained, and the finished product has a "stiff feel".
Further, if too much, the compounding stability and the solubility in water decrease,
There is a "feeling of fatigue" in the finish, and there is a tendency to hinder the fluffy finish.

The content of the component (2) is 3 to 20% by weight, preferably 5 to 15% by weight. When the amount of the component (2), a cationic surfactant, is small, the texture at the time of finishing, especially "softness" and "puffiness" cannot be obtained, and when it is too large, the compounding stability is lowered and the finish is "smooth". Feeling "
Is felt and tends to hinder the fluffy finish.

The mixing ratio of the component (1) and the component (2) is
If the ratio of (1) is too large, sufficient detergency cannot be obtained and the compounding stability tends to deteriorate. If the ratio of the component (2) is too large, a sufficient texture at the time of finishing, particularly "softness" and "puffiness", may not be obtained. Therefore, the mixing ratio of the component (1) and the component (2) is preferably 10: 1 to 1: 1 in weight ratio, more preferably 7: 1.
~ 3: 1.

The detergent composition of the present invention also comprises the above components.
It is characterized in that no anionic surfactant is used in the rest of (1) and (2). In the present invention, since the cationic surfactant represented by the general formula (2) is used at a relatively high concentration,
When an anionic surfactant is used, precipitation, gelation, and low temperature stability are impaired, so that the effects of the present invention are not exhibited.

The detergent composition of the present invention containing the components (1) and (2) as essential components is a composition which maintains a stable blending state, and further, a blending stabilizer of the component (3) is added. When compounded, the compounding stability is further improved, and a high-concentration detergent composition having good low-temperature stability, solubility, and film-tightness preventing property can be obtained.

In the compounding stabilizer represented by the general formula (3), R ⁶ is any of an alkyl group, an alkenyl group and an alkylaryl group. Specifically, it is the same as the alkyl group, alkenyl group, and alkylaryl group exemplified for R ¹ . Among these, the blending stability tends to be lowered when the number of carbon atoms is large, so that the preferred number of carbon atoms is 1 to 8.

R ⁷ is one kind or two or more kinds of alkylene groups, and among them, alkylene groups having 2 to 4 carbon atoms are preferable, but not all R ⁷ are ethylene groups.
The (R ⁷ —O) _n part is obtained by adding ethylene oxide, propylene oxide, butylene oxide or the like, and the alkylene oxide or the like to be added may be homopolymerization, two or more kinds of random polymerization or block polymerization. Further, of the alkylene groups having 2 to 4 carbon atoms, a propylene group is particularly preferable, and when two or more kinds of alkylene oxides are added, one of them is preferably propylene oxide.

N is a number in the range of 1-100, where n
When the ratio is large, the compounding stability tends to decrease, so n
Is preferably a number in the range of 1-15.

The compounding amount of the compounding stabilizer of the component (3) is not particularly limited, but if it is too small, sufficient low temperature stability, solubility, and
The film-tightness-preventing property cannot be obtained, and if the amount is too large, the effect corresponding to the amount cannot be obtained, which is technically meaningless. Therefore, it is preferably 1 to 20% by weight, more preferably 5 to 18% by weight, based on the entire composition.

The detergent composition of the present invention can be preferably used as a liquid light detergent for textile products. Textile products include natural fibers such as cotton, wool, and silk, semi-synthetic fibers such as acetate, synthetic fibers such as nylon, acrylic, polyester, polypropylene, and knitted fabrics made of various fibers mixed with them, and textile products such as woven fabrics. It can be used as an example, and it can be preferably used particularly for household textile products (sweater, muffler, cardigan, lingerie).

When the detergent composition of the present invention is actually used for washing clothes or the like, it is diluted with water so as to have a desired concentration. Usually, it is used after being diluted about 1000 to 2500 times. Generally, liquid light detergents that are commercially available are diluted with hand washing by 400 times and by machine washing by 750 times, and the cleaning composition of the present invention is about 3 times higher than conventional products. Concentration.

In the detergent composition of the present invention, in addition to the above components, other optional components can be added in an amount usually used in a range not impairing the effects peculiar to the present invention. . Examples thereof include water-soluble silicones, cationic polymers such as dialkyldiallylammonium, lower alcohols such as ethanol, solubilizing agents such as urea, preservatives, metal ion scavengers (chelating agents), inorganic electrolytes, dyes, and fragrances.

[0032]

EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples. <Preparation of detergent composition> In prepared water heated to 40 ° C,
Ingredients shown in Tables 1 to 3 below (3) if necessary,
Samples are blended in order of component (1) and component (2), and after blending, 20 ℃
The samples cooled in this manner were used as samples of the product of the present invention and the comparative product.

<Compounding Stability> The appearance of the liquid at 20 ° C. immediately after the composition obtained by the above-mentioned preparation method was visually observed. The judgment criteria at this time are as follows: ○: Transparent liquid △: Opaque liquid ×: Gelation / solidification

<Low Temperature Stability> 100 ml of each composition was sampled in a glass bottle, and after sealing, the appearance after storage at 0 ° C. for 24 hours was visually observed. The judgment criteria at this time are as follows: ○: Transparent liquid △: Opaque liquid ×: Gelation / solidification

<Solubility> 1 on magnetic stirrer
In a liter glass beaker, add 1 liter of tap water (20
(° C) and a stirrer were put in, and the mixture was rotated at a constant speed. 1 ml of the detergent composition was added dropwise to the water bath, and the time point at which it was uniformly dispersed in water was taken as the end point, and the time was measured. The criteria for judgment at this time are as follows: ○: within 10 seconds △: 10 to 30 seconds ×: 30 seconds or more

<Handling at the time of finishing> Wool thread cloth and acrylic muffler are washed with a detergent composition diluted with water at a temperature of 25 ° C. by about 1000 times 20 times for 30 seconds, lightly dehydrated, and then washed. Rinsing was performed by tap washing with tap water at ℃ 10 times. After changing the water and rinsing twice, it was dehydrated for 30 seconds, and flat-dried in a constant temperature and constant humidity chamber at 22 ° C. and 50% RH. After drying, sensory evaluation was performed for fluffiness and softness. The sensory evaluation was performed by comparing with a commercially available light liquid detergent and evaluated as the total score of 10 panelists according to the following criteria. Superior to commercially available products ... + 2 points Somewhat superior ... + 1 point Equivalent ... 0 points Somewhat inferior ...- 1 point Inferior ...- 2 points

<Evaluation of Detergency> For 1 liter of detergent aqueous solution,
Wet artificial soil cloth marketed by Japan Laundry Science Association
Ten (4 cm x 4 cm) sheets were put in, a non-contaminated cloth was further added so that the bath ratio became 1/30, and the cloth was washed with a tergotometer at 120 rpm under the following conditions. Detergent concentration: 13 ml / 30 liters Hardness of water used: 50 ppm Temperature: 20 ° C. Washing time: 10 minutes Rinsing: 3 minutes x 2 times at 50 ppm Detergency is measured by measuring the reflectance of the contaminated cloth before and after cleaning, Kube
The cleaning rate was calculated from the lka-Munk formula. The detergency of a sample is shown when the detergency of a commercially available light detergent for clothes (detergent concentration: 40 ml / 30 liters) is 100.

Component (1) Nonionic surfactant 1: Coconut oil alcohol polyoxyethylene adduct (R ¹ = lauryl group: myristyl group = 3:
One. m = 8) nonionic surfactant 2: coconut oil alcohol polyoxyethylene adduct (m = 12) nonionic surfactant 3: decanol polyoxyethylene adduct (R ¹ = decyl group, m = 8) non Ionic surfactant 4: Decanol polyoxyethylene adduct (R ¹ = decyl group, m = 6) Nonionic surfactant 5: Isotridecyl alcohol polyoxyethylene adduct (R ¹ = isotridecyl group, m = 1)
2)

Component (2) Cationic surfactant 1: R ² and R ⁵ in the general formula (2)
= Oleyl group, R ³ = methyl group, R ⁴ = ethylene group, X =
Methyl sulfate group cationic surfactant 2: R ² and R ⁵ in the general formula (2)
= Stearyl group, R ³ = methyl group, R ⁴ = ethylene group, X
= Chlorine cationic surfactant 3: R ² and R ⁵ in the general formula (2)
= Lauryl group, R ³ = methyl group, R ⁴ = ethylene group, X =
Methyl sulfate group cationic surfactant 4 (comparative product):

[Chemical 7] (R = stearyl group) Cationic surfactant 5 (comparative product):

Embedded image (R = stearyl group)

Component (3) Compounding stabilizer 1: In the general formula (3), R ⁶ = methyl group,
R ⁷ = propylene group, n = 2 compounding stabilizer 2: in the general formula (3), R ⁶ = ethyl group,
R ⁷ = propylene group, n = 5 Compounding stabilizer 3 (comparative product): glycerin

Anionic surfactant 1: sodium dodecylbenzenesulfonate Anionic surfactant 2: sodium dodecyl sulfate

[0042]

[Table 1]

[0043]

[Table 2]

[0044]

[Table 3]

[0045]

The effect of the present invention is that it exhibits excellent detergency and flexibility, does not impair the feeling of volume (fluffiness) after washing, has excellent low temperature stability, and uses a cationic surfactant at a high concentration. The purpose of the present invention is to provide a novel detergent composition in which the amount used per time is smaller than that of conventional products.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Nakamura 7-35 Higashiohisa, Arakawa-ku, Tokyo Asahi Denka Kogyo Co., Ltd.

Claims (7)

[Claims] 1. As the component (1), a compound represented by the general formula: R ¹ O— (C ₂ H ₄ O) _m H (1) (wherein R ¹ is an alkyl group, an alkenyl group or an alkylaryl group) Or an acyl group, and m represents a number in the range of 1 to 100).
˜50% by weight and the general formula as component (2): (In the formula, R ² , R ³ and R ⁵ represent one kind or two or more kinds of alkyl groups, alkenyl groups or alkylaryl groups which may be the same or different, R ⁴ represents an alkylene group, X Is a halogen atom or an anionic atomic group), and contains 3 to 20% by weight of a cationic surfactant, and the balance does not include an anionic surfactant. 2. Component (3) has the general formula: R ⁶ O— (R ⁷ —O) _n H (3) (wherein R ⁶ is an alkyl group, an alkenyl group, an alkylaryl group or an acyl group). R ⁷ represents a group, and R ⁷ represents one or more kinds of alkylene groups, provided that all R ⁷ are not ethylene groups, and n represents a number in the range of 1 to 100). The cleaning composition according to claim 1, further comprising a compounding stabilizer. 3. The cleaning composition according to claim 2, wherein the content of the component (3) is 1 to 20% by weight based on the total weight of the composition. 4. R ³ in the general formula (2) has from 1 to 1 carbon atoms.
The cleaning composition according to any one of claims 1 to 3, which is 3 alkyl groups. 5. The detergent composition according to claim 1, wherein R ⁴ in the general formula (2) is an ethylene group. 6. R ⁶ in the general formula (3) is 1 to 10 carbon atoms.
The cleaning composition according to any one of claims 2 to 5, which is an alkyl group of 8. 7. A detergent composition for fibers, which comprises the detergent composition according to any one of claims 1 to 6.