JPS6361093A - Liquid detergent composition - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid detergent composition. This invention relates to a liquid detergent composition containing a lyoxyalkylene type nonionic surfactant, which is less sticky during washing and rinsing, and has an extremely good feeling of use.

(Prior art and its problems) In liquid detergents such as dish detergents, shampoos, and light detergents for clothing, in addition to their original performance such as cleaning power and foaming power,
High quality performance as a product is also required, such as low temperature stability, appearance, and odor.

Furthermore, since the objects to be cleaned are tableware, vegetables, hair, or delicate clothing such as silk, wool, acetate fibers, etc., hand washing is generally performed as a cleaning method. For this reason, it is preferable to use a product that has less sliminess from the detergent during washing and rinsing and has an excellent feeling of use.

Conventionally, in liquid detergents, cleaning power is the main focus.

For reasons of foaming power, anionic surfactants are used as the main cleaning base.

However, synthetic anionic surfactants, which are generally produced by synthetic chemical methods, have a high adsorption property to the skin, so they become slimy when washed, and also remain on the skin when rinsing hands after washing, leaving them slippery for a long time. There was a problem that it did not work properly. This kind of sliminess is not just a tactile problem, but also causes actual damage, such as making the dishes easier to wash and causing them to drop and break.

Also, there is less slimy feeling when using and rinsing.

Fatty acid salts are natural anionic surfactants that are easy to use. However, whether fatty acid salts are used alone or in combination with other anionic surfactants, they have poor low-temperature stability, are alkaline, which is unfavorable for skin physiology, and hardness components in water during rinsing. Ca"j
It combines with Mg"") to form an insoluble Ca salt, 1Mg salt, which remains on the skin, resulting in drawbacks such as a residual fatty acid odor.

In this way, great efforts have been made to improve the inherent performance such as cleaning power and foaming power, as well as quality aspects such as low-temperature stability, appearance, and odor, and have achieved great results. As for the feel, little improvement has been made, and there has been a need to provide a cleaning composition with an excellent feel.

[Means for understanding problems]

Under these circumstances, the inventors of the present invention have conducted intensive research to overcome the above problems.

Surprisingly, by using a synthetic anionic surfactant in combination with a specific polyoxyalkylene type nonionic surfactant, there is no deterioration in quality performance such as low temperature stability and odor. The present invention was completed based on the finding that a liquid detergent composition that reduces sliminess during washing and rinsing and has an excellent feeling of use can be obtained.

That is, the present invention uses the following component (A) and button (Al
Synthetic anionic surfactant 10-40 weight 9 (J31
Provided is a liquid cleaning composition containing 0.1 to 10% by weight of a polyoxyalkylene nonionic surfactant having an HLB value of 18 or more, and having a pH of 5 to 9. It is something to do.

The synthetic anionic surfactant, which is a component of the present invention, refers to anionic surfactants produced by synthetic chemical methods using mainly petroleum as raw materials other than fatty acid salts. as straight chain alkyl (C, ~C,,) benzenesulfonate, alkyl (C, ~CtS) sulfate, ?
Lyoxyethylene (EO = 1-10) alkyl (cs
~C1゜) Ether sulfates, alkanes (C8~C2゜)
Sulfonate, α-olefin (C8~Vo Cx.)
Sulfonate, α-sulfo fatty acid (C8-C1゜) ester salt, ? lyoxyethylene (EO=1-10) alkyl (ca-C1゜) ether carboxylate, monoalkyl (C8-C7゜) phosphate, N-acyl (C, ~
C1°) Glutamate and the like.

This (A) component is usually blended in the composition in an amount of 10 to 40% (expressed simply as percentage).

In addition, examples of the I (?saoxyalkylene type nonionic surfactants having an LB value of 18 or higher) of the present invention include oxyethylene alkyl ether%?lyoxyethylene alkylphenyl ether, ?lyethylene glycol fatty acid ester, Zerioxyethylene solpitan fatty acid ester, ?Rioxyethylene glycerin fatty acid ester, ?
Lyoxyethylene Rubit fatty acid ester,? Lioxyethylene? Lioxyderopyrene alkyl ether%?
Among the active agents such as lyoxyethylene castor oil and hydrogenated castor oil, those having a HLBLB value or higher are mentioned, and in particular, ? Lioxyethylene alkyl ether,? The HLBLB value or higher of the lyethylene glycol fatty acid ester is preferred.

In addition, in this specification, the HLB value is the following 2〇)
0 HLB = Σ (number of bases of hydrophilic groups) - Σ (number of bases of lipophilic groups) + 7 using the value determined by
(1) Main HLB base numbers in the following margin (R formula) Conventionally, when using a ?
3 to 15 are used as a cleaning base.1 Like the liquid cleaning composition of the present invention, 1 (an example in which a highly hydrophilic nonionic surfactant with LB of 18 or more is used as a cleaning base) Example of using IJ oxyalkylene alkyl ether with a large number of added moles of alkylene oxide in heavy powder detergents for the purpose of preventing caking (Japanese Patent Laid-Open No. 52-416)
No. 12, @Kokai No. 58-160400) is known, and no others are known. Moreover, the idea of using it for the purpose of improving usability can be said to be completely new. Moreover, the effect of improving the usability of the present invention is significantly improved when the HLB value is 18 or more, and the effect is small when the HLB value is 18 or less, which could not be achieved by the formulation of conventional cleaning compositions. .

The content of the component (B) of the present invention on paper is 0.1% of the total composition.
-10% preferably 0.5-5%, 0.1
If it is less than 10%, the effect will be small, and if it exceeds 10%, foaming will be inhibited, which is undesirable. It is prepared by adjusting the pH to 5 to 9, preferably 6 to 8. If the pH is outside this range, the effects of the present invention will not be achieved and this is not preferred.

The liquid detergent composition of the present invention further includes a nonionic surfactant such as a fatty acid alkanolamide as an optional component;
Ampholytic surfactants such as alkyl betaines, alkyl sulfobetaines, alkylimidacillins, and alkyl amine oxides can also be blended. Furthermore, conventionally known low-temperature stabilizers can also be used in combination. For example, ethanol, isopro, Q
Lower alcohols such as alcohol, ethylene glycol b
"f") Ethylene glycol: r-A/, 7' propylene glycol, glycols such as gelJ propylene glycol, Hensensulfone e salt, p-) lower glycols such as luenesulfonate, xylene sulfonate, etc. Examples include alkyl (C1-C8) benzenesulfonic acids, aromatic carboxylic acids such as benzoates and salicylates, and urea. Furthermore, with some exceptions, various known substances that can be incorporated into detergents can be used in combination for the purpose. These include organic builders and inorganic builders for improving cleaning power such as citric acid, malic acid, gluconic acid, or their salts, as well as anti-roughing agents, enzymes, protein derivatives, opacifying agents, colorants, etc. Preservatives 1. Additives such as fragrances.

However, the effects of the present invention are limited to three. These compounds are inhibited by builders such as sodium lyphosphate, sodium silicate, sodium carbonate, sodium nitrilotriacetate, aluminosilicate, etc., which are generally added to heavy detergents. It is necessary to substantially eliminate

[Effect]

It is believed that the effects of the present invention are achieved for the following reasons.

in general,? It is known that the alkylene oxide group of a saoxyalkylene type nonionic surfactant is partially cationized as an oxonium ion in an aqueous solution. On the other hand, one synthetic anionic surfactant is thought to bind to oxonium ionized alkylene oxide groups, be electrostatically neutralized, and reduce adsorption to the skin. Therefore, nonionic surfactants with a large number of added moles of ethylene oxide and high HLB capture a large amount of anionic surfactants, inhibiting their adsorption to the skin, resulting in dryness during use and rinsing. This is thought to reduce stickiness and improve the feeling of use.

〔Effect of the invention〕

The liquid detergent composition of the present invention described above has improved usability while retaining the functions of conventional similar detergents, such as stain removal and foaming, and is therefore suitable for use in dishwashing detergents, shampoos, and light laundry detergents. It is useful as a detergent.

〔Example〕

The present invention will be explained below with reference to Examples, but the present invention is not limited by these Examples.

In addition, in the following examples, each detergent composition was tested by the following method.

Test method〉 Two types of detergents, A and B, were placed in a 2 ton beaker at 40°C.
Prepare a 10% by weight detergent solution. The feel of the aqueous solution of detergent B was compared by a sensory test as described below.

■ Feeling of liquid Immerse your left and right wrists separately in an aqueous solution of detergent H.

The feel of the liquid after 1 minute of immersion is evaluated using the following evaluation points based on the detergent.

■ Ease of rinsing hands Rinse each soaked hand with running water at 40°C, and rate the ease of rinsing using the following evaluation points based on the detergent person.

■ Feeling after use After rinsing thoroughly and wiping your hands with a dry towel, rate the feel of your hands using the following evaluation points based on the detergent person.

The above test was conducted on 10 subjects, and the usability of Detergent B was evaluated based on the sum of the nine scores obtained for each item.

Example 1 The feeling of use of the following detergent B was evaluated according to the above test method. The results are shown in Table-1.

(Composition) Detergent Detergent B Sodium dodecylbenzenesulfonate 20% heavy economy 20% by weight Ethanol 5% by weight 5% by weight Water Balance Balance pill '7.0 7.0 or less Margin Example 2 For the following detergent A%B, the above The feeling of use was evaluated according to the test method. The results are shown in Table-2.

(Composition) Detergent Detergent B Tetraoxyethylene dodecyl ether 15% by weight
15% by weight Sodium sulfate Coconut oil fatty acid jetanolamide 0.5% by weight 0
．． 5% by weight Ethanol 5% by weight 5N% Water Balance Balance pH 7,07,0 Shimikuchi Example 3 Kitchen detergent C with the following composition and commercially available kitchen detergent D
Regarding (PH7), ordinary household housewives under 49 years old 5
A blind in-home use test using the paired comparison method was conducted on 0 people. The period of use was one week.

The results are shown in Table-3.

(Composition) Detergent C Coconut fatty acid jetanolamide 10% by weight
pox(100) stearyl ether 5% by weight ethanol
5! Amount % pH 7.0 (Results) Table-3 and above

Claims (1)

[Claims] 1. The following components (A) and (B) (A) Synthetic anionic surfactant 10 to 40% by weight (B) Polyoxyalkylene type nonionic interface with an HLB value of 18 or more A liquid detergent composition containing 0.1 to 10% by weight of an active agent and having a pH of 5 to 9. 2. The liquid detergent composition according to claim 1, which does not substantially contain a builder for heavy detergent formulation.