JPS6160796A - Transparent liquid detergent composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transparent liquid detergent composition, in particular a liquid detergent composition that has an excellent softening effect on synthetic fibers and has good stability over a wide temperature range. The present invention relates to a drug composition.

In the past, Jobeitech has developed anionic surfactants and cationic surfactants to compensate for the lack of flexibility imparting effect, which is a drawback of anionic surfactants, and the lack of cleaning power, which is a drawback of cationic surfactants. It is known that it can be used in combination with drugs. for example,
As fabric softeners, US Pat. No. 3,920,563, US Pat. No. 3,920,565, British Patent No. 1
, 329,429, JP-A-53-38794 and JP-A-53-52,799, etc., and the compositions described in US Pat. No. specification, JP-A-52-
Compositions described in JP-A-114604 and JP-A-53-6437 have been proposed.

However, the softening effect on fibers is not necessarily common to all fibers, and even though it is effective on cotton fabrics, they are usually washed with light detergents.
It is often ineffective on protein fibers such as silk and wool, and synthetic fibers such as acrylic, so conventional softening agents for cotton fabrics are used to impart flexibility to protein fibers and synthetic fibers. A common problem with these liquid light detergents is that, especially when they contain cationic surfactants, their cold stability decreases when trying to increase the effect of imparting flexibility to fibers. However, the product value is significantly reduced due to precipitation of crystals and cloudiness. Therefore, for this type of light detergent, it is important to simultaneously impart cleaning effects and flexibility to synthetic fibers such as acrylic and protein fibers such as wool, and to improve cold stability. It had become.

In recent years, research has been carried out to address these issues. Detergent compositions have been reported in which detergent compositions are combined with surfactants to enhance cleaning and softening effects and to improve cold stability.

However, a common drawback of these compositions is that
Furthermore, in an attempt to improve the flexibility imparting effect, even if the total amount of cationic surfactant and 7-ion surfactant is increased, the flexibility imparting effect does not increase, and the flexibility imparting effect is not necessarily sufficient. In some cases.

The present invention provides a transparent liquid detergent that has excellent cold stability, can effectively improve the effect of imparting flexibility to synthetic fibers, and is capable of imparting desired flexibility to clothing. The purpose is to provide a composition.

JBUi mouth 1 belly The transparent liquid cleaning composition of the present invention has the following (a).

(b) and (c) components, (a) component and (b)
The molar ratio of the components is 1:1.70 to 1:
At 0.70.

and the blending ratio of component (b) and component (C) is 1 by weight.
:5 to 1:20.

(a) At least one type of 7-ion surfactant selected from the following (a-1) to (a-3): (a-1) An alkylbenzene sulfonate whose alkyl group has 8 to 16 carbon atoms.

(a-2) Olefin sulfonate having 12 to 20 carbon atoms.

(a-3) Alcohol ethoxy sulfate having an alkyl group having 10 to 15 carbon atoms and having an average number of added moles of ethylene oxide of 1 to 5.

(b) at least one kind selected from the quaternary ammonium salts represented by the following general formula (I) (wherein R1 is an alkyl group, alkenyl group or hydroxyalkyl group having 12 to 22 carbon atoms; R8 is an alkyl group or hydroxyalkyl group having 1 to 4 carbon atoms, each of which may be the same or different, or a halogen atom.) (c) selected from the following (c-1) and (c-2): At least one nonionic surfactant: (c-1) Higher alcohol ethoxylate having an alkyl group having 8 to 20 carbon atoms and having an average number of added moles of ethylene oxide of 13 to 20.

(c-2) Higher alcohol propoxyethoxylate having an alkyl group having 8 to 20 carbon atoms and an average number of added moles of propylene oxide of 1 to 3 and an average number of added moles of ethylene oxide of 8 to 20 Below, more details about the present invention will be explained. Explain.

Among the 7-ion surfactants of component (a), the alkylbenzene sulfonate has 8 to 16 carbon atoms, preferably 10 to 16 carbon atoms.
It has 14 straight-chain or branched alkyl groups, and preferred salts include sodium salt, potassium salt, magnesium salt, ammonium salt, or alkanolamine salt.

In addition, the olefin sulfonate has an average carbon number of 12 to 2
0, preferably 14 to 18, or a sulfonated inner olefin having an average of 12 to 20, preferably 12 to 18 carbon atoms, which mainly contains alkenesulfonate and hydroxyalkanesulfonate. As an ingredient. α-olefins can be obtained, for example, by a wax cranking method or an ethylene polymerization method using a Ziegler catalyst. Inner olefins have unsaturated bonds inside the carbon chain other than between α and β. Suitable salts of the olefin sulfonate obtained through the chemical reaction (JP-A-59-27995) include sodium salts, potassium salts, magnesium salts, ammonium salts, and alkanolamine salts.

In addition, alcohol ethoxy sulfate has 10 to 15 carbon atoms.
, preferably having 12 to 14 linear or branched alkyl groups, for example.

It is obtained by adding an average of 1 to 5 moles of ethylene oxide to a primary or secondary alcohol having a similar alkyl group as a carbon skeleton as a raw material, converting it into a sulfuric acid ester, and then making it into a neutralized salt. . Preferred salts include sodium salts, potassium salts, magnesium salts, ammonium salts, and alkanolamine salts.

In the present invention, it is necessary to use the specific anionic surfactants shown in (a-1) to (a-3) above, and if anionic surfactants other than these are used, the flexibility imparting effect will be insufficient. and cold stability cannot be improved.

The cationic surfactant as component (b) is represented by the general formula (I)
The quaternary ammonium salt shown is used.

(In the formula, R1: C1□4□ alkyl group, alkenyl group, or hydroxyalkyl group R'': C1,4 alkyl group or hydroxyalkyl group, and each may be the same or different.

X: halogen atom) In this general formula, R1 is preferably an alkyl group or alkenyl group of GOG~2, particularly C-6. .

A tallow alkyl group is preferred, or a chlorine atom, a bromine atom, a fluorine atom, an iodine atom, etc.

In the present invention, one of the N-substituents is used as a cationic surfactant.
is a long-chain alkyl group (alkenyl group), and
It is necessary to use mono-long chain type quaternary ammonium having benzyl group as the N-1iW converter, and the effects of the present invention cannot be obtained with other cationic surfactants.

Among the nonionic surfactants as component (c), (c-1)
Higher alcohol ethoxylate has the following general formula (II)
It is expressed as

R"-0+CH,-CH,-0+i-H(II)(R'
: C, -□. Alkyl group m: represents the average number of added moles and is +13 to +20.

) In the above general formula (n), the softening effect of detergent compositions containing compounds with an average added mole number m of less than 13 deteriorates, and in particular, those with m of 5 or less have an anionic surfactant and a cationic surfactant. It does not dissolve the surfactant complex, and if m exceeds 20, the foaming power and detergency of the detergent composition will decrease.
This higher alcohol ethoxylate, which is more preferably an alkyl group of 9 to □, is a primary or secondary aliphatic alcohol whose carbon skeleton is an alkyl group having the above number of carbon atoms, and an average value of the degree of polymerization of 13. It can be obtained by condensing 20 to 20 polyoxyethylenes.

(c-2) Higher alcohol propoxyethoxylate of component (e) has the following general formula % formula % (R': C, , alkyl group k: average number of moles added, 8 to 20) n: Indicates the average number of moles added, and is 1 to 3.However, the order in which ethylene oxide and prokylene oxide are added does not matter, and any of block addition polymerization, reverse block addition polymerization, and random addition polymerization may be used. In formula (m), R4 is more preferably a C,1, alkyl group.

In the present invention, the anionic surfactant (a) component and (
The cationic surfactant of component b) has a 1 molar ratio of (a):
(b) = 1:1.70 to 1:0.70, preferably 1:1.2 to 1
: range of 0.90. If the proportion of component (a) is either smaller or larger than this range, the effect of imparting flexibility to synthetic fibers will be significantly reduced.

Further, the cationic surfactant as the component (b) and the nonionic surfactant as the component (C) are in a 1 weight ratio (b):(c).
The ratio is in the range of 1:5 to 1:20, preferably 1:8 to 1:15. (b) and (
If the blending ratio of component c) deviates from the above range, the stability of the liquid detergent will deteriorate significantly and it will become cloudy even at room temperature.

It is appropriate that the liquid cleaning composition of the present invention contains (a) an anionic surfactant, (b) a cationic surfactant, and (c) a nonionic surfactant in a total amount of 10 to 90% by weight, and more preferably. is 20 to 50% by weight. In addition, if necessary, other optional ingredients such as foam enhancers such as fatty acid alkanolamide, lower alcohols, polyhydric alcohols, viscosity modifiers such as lower alkylbenzene sulfonates, ethylenediaminetetraacetates, citrates, etc. A blocking agent, a fluorescent whitening agent, a dye, a fragrance,
Antioxidants, emulsifying agents, bacteriostatic agents, enzymes, etc. may also be included.

According to the present invention, by blending specific 7-ionic surfactants, cationic surfactants, and nonionic surfactants in specific proportions, excellent stability is achieved not only at room temperature but also at low temperatures. A transparent liquid detergent composition that does not become cloudy over time can be obtained, and this detergent composition also has an excellent softening effect on synthetic fibers and has a low active agent content. If the number is increased, the flexibility imparting effect can be further improved, and arbitrary flexibility can be imparted to clothing.

The transparent liquid detergent composition of the present invention is particularly useful as a light detergent for synthetic fibers.

Next, the present invention will be explained in more detail with reference to Examples.

Example 1 As shown in Table 1, the type and mixing ratio of the 7-ionic surfactant and the cationic surfactant were varied, and the nonionic surfactant was used as the 1st RC.

Liquid detergent compositions of the present invention and comparative examples were prepared as aqueous solutions containing 25% by weight of alcohol ethoxylate (average added mole number of ethylene oxide E OP = 14), and the stability of these compositions at room temperature was investigated. . Furthermore, the effect of imparting flexibility to synthetic fibers was investigated using a 0.25% by weight aqueous solution of these compositions as a washing liquid.

The results are shown in Table 1, and each test method and
The abbreviations in the table are as follows.

(I) Stability at room temperature and stability After leaving 100IIft of the composition in a constant temperature room at 25°C or -5°C for one week, its appearance was visually judged, and the stability at room temperature and cold was determined to be 0 (transparent) and Δ (slight). Kana cloudy)
, × (cloudy).

(2) Effect of imparting flexibility to synthetic fibers Washing liquid 5Q was used in a small reversible washing machine with a capacity of approximately 10Ω.

Add acrylic jersey cloth so that the bath ratio is 50 times.
After washing for 0 minutes, it was dehydrated to a moisture content of 100%, then rinsed twice with 5Q tap water, dried in the shade, and left in a constant temperature and humidity room (25°C, 65%) for 2 days. Each cleaning cloth was subjected to sensory evaluation by 10 panelists according to the following criteria, and the average value was taken as the softness evaluation score. An evaluation of 3 points or higher is required.

1 point...Not soft 2 points...A little soft 3 points...Very soft 4 points...Sufficiently soft 5 points...Very soft (3) Abbreviation in Table 1 LAS-Na: C1 , sodium salt of linear alkylbenzenesulfonic acid (average molecular weight: 346) AO8-
Na: Sodium salt of α-olefin sulfonic acid of C14 (average molecular weight: 307) 10S-Na: Sodium salt of internal olefin sulfonic acid of C, ..., 4 (average molecular weight: 306) AES-N
a: C, □ ~ Co Sodium salt of primary alcohol ethoxysulfate (E Op = 3) (Average molecular weight: AS
-Na: C, 2 alcohol Sodium salt of sulfuric acid (average molecular weight: 28g) Sodium salt of soap nioleic acid (average molecular weight:
305) PS-Na: C1,, Sodium salt of alkylsulfonic acid (average molecular weight: 328) N E S -Na: Sodium salt of Cs alkylphenol ethoxysulfate (E Oi> = 8.6)
(Average molecular weight: 677) CX, BC: octadecyl-dimethylbenzylammonium chloride (average molecular weight: 423) B O'-z Tbenzyldimethyl-4-t-meritylphenoxyethoxyethylammonium chloride (average molecular weight: 450) c ,,pc: Hexadecylpyridium chloride (average molecular weight: 360) C to C dioctadecyl-dimethylammonium chloride (average molecular weight: 567) C1,MC: Octadecyltrimethylammonium chloride (average molecular weight: 34g) Example 2 C1□ The mixture ratios of linear alkylbenzenesulfonic acid sodium salt (LAS-Na) and C1, dimethylbenzylammonium chloride (C1, B C) were varied, and various alcohol ethoxylates were used to produce the results shown in Table 2. Liquid cleaning compositions of the present invention and comparative examples were prepared. These cleaning compositions were tested and evaluated in the same manner as in Example 1, and the results were used in a second test.
Shown in the table.

(Margin below)

Claims (1)

[Scope of Claims] 1. (a) An alkylbenzene sulfonate having an alkyl group having 8 to 16 carbon atoms, an olefin sulfonate having 12 to 20 carbon atoms, and an ethylene oxide average having an alkyl group having 10 to 15 carbon atoms. At least one anionic surfactant selected from alcohol ethoxy sulfates with an added mole number of 1 to 5, and (b) General formula (I) ▲There are mathematical formulas, chemical formulas, tables, etc.▼(I) (Formula where R^1 is an alkyl group, alkenyl group, or hydroxyalkyl group having 12 to 22 carbon atoms, and R^2 is an alkyl group or hydroxyalkyl group having 1 to 4 carbon atoms, each of which may be the same or different. , X is a halogen atom); and (c) an average addition of ethylene oxide having an alkyl group having 8 to 20 carbon atoms. Higher alcohol ethoxylates having a mole number of 13 to 20 and higher alcohol propoxyethoxylates having an alkyl group having 8 to 20 carbon atoms and an average number of added moles of propylene oxide of 1 to 3 and an average number of added moles of ethylene oxide of 8 to 20. and at least one nonionic surfactant selected from among the above, and the molar ratio of component (a) and component (b) is in the range of 1:1.70 to 1:0.70. can be,
A transparent liquid detergent composition characterized in that the blending ratio of the component (b) and the component (c) is in the range of 1:5 to 1:20 by weight.