JPS62240396A - 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 [Field of Industrial Application] The present invention relates to a cleaning composition that has low foaming properties and excellent rinsability.

[Conventional technology and problems]

As modern lifestyles have significantly increased water use,
Situations such as insufficient water supplies occur during the summer dry season. Washing water accounts for a considerable amount of water used in a typical household, and housewives have expressed a desire to conserve this water. By the way, our research on rinsing revealed that about 80% of households rinse with running water, and the average rinsing time is about 9 minutes. When rinsing is performed while running water, most of the water in the washing water is rinsing water. When rinsing time is considered from the perspective of detergent components remaining on clothes, it is known that rinsing time of about 5 minutes is sufficient under conditions that are considered standard, and if rinsing time is too long, There have also been reports that the iron contained in clothing adheres to clothing and accelerates yellowing of clothing. The general consumer's guideline for rinsing completion is based on the amount of foaming during rinsing, how well the liquid spreads, and the time, but based on these factors, it is possible to shorten the rinsing time to a reasonable level by suppressing foaming during rinsing. It appears to be. If the rinsing time is shortened, water will inevitably be saved.
Economical.

From this point of view, detergents with excellent rinsing properties seem to meet consumer needs.

Conventionally, as a method for controlling the foam of detergents containing anionic surfactants, a mono-long chain alkyl quaternary ammonium salt is added and mixed into a slurry containing anionic surfactants and higher fatty acid salts, and then spray-dried. Method (Tokuko 44-4
No. 658) was known. However, the detergents obtained by this method still have a drawback that the rinsability improvement effect is not sufficient and the quality varies.

[Means for solving problems]

As a result of extensive research, the present inventors have discovered that a detergent containing specific amounts of α-olefin sulfonate, higher fatty acid salt, polyethylene glycol, and quaternary ammonium salt particles with specific properties has low foaming properties and The present invention was completed after discovering that the product has excellent rinsability and stable quality.

That is, the present invention provides: (A) α-olefin sulfonate 3 to 20% by weight (B) Higher fatty acid salt 2 to 10% by weight (C) Polyethylene glycol with an average molecular weight of 1000 to 20000 0.5 to 5 stars % (D) Ratio (1) of the first-order diffraction peak intensity (1) of the long side spacing and the maximum peak intensity (n) of the side spacing in X-ray diffraction
) / (II) is 2.0 or less, a cleaning composition comprising 0.5 to 5% by weight of powder particles of a mono- or di-long-chain alkyl quaternary ammonium salt is provided.

To explain in more detail, the (8) component has an average of 10~
α-olefin sulfonates having 22, preferably 14 to 18 carbon atoms are preferred, and sodium salts are common, and the amount incorporated is in the range of 3 to 20% by weight. 3
If it is less than 20% by weight, a sufficient foam suppressing effect cannot be obtained;
Exceeding this level is undesirable as it may cause caking during sales and distribution.

The (IS) component is preferably a saturated or unsaturated fatty acid salt having an average carbon number of 10 to 20, and the amount thereof is in the range of 2 to IO weight %. If it is less than 2% by weight, a good rinsing improvement effect cannot be obtained, and if it is more than 10% by weight, the anti-caking performance of detergent particles decreases, and a characteristic fatty acid odor remains on the clothes after washing, which is undesirable. The preferred range is 3.5-7%. Ions that serve as counter ions for fatty acids are preferably sodium, potassium, and magnesium, but are not particularly limited.

Component (C) is polyethylene glycol with an average molecular weight of 1,000 to 20,000, preferably 4,000 to 15,000, and its blending ratio is 0.5 to 5% by weight, preferably 1 to
This is 3%. If it is less than 0.5% by weight, a sufficient rinsing improvement effect cannot be obtained, and if it is added in an amount of 5% by weight or more, not only no further effect can be obtained, but it also has a negative impact on the physical properties of the slurry during detergent production.

Component (D) used in the present invention has the following general formula [wherein R is an alkyl group having 10 to 20 carbon atoms, R2 is the same as R or a lower alkyl group, Ih, I? , is a lower alkyl group, , one or two of the four groups bonded to it are hydrophobic groups with a long-chain alkyl structure, and the molecular shape is elongated (asymmetrical). The X-ray diffraction pattern of such a crystal has diffraction lines originating from repeating units in the direction of the molecular chain in the long surface region, and diffraction lines originating from the cross section of the molecular chain in the short surface region. Diffraction lines derived from repeating units can be obtained.By specifying the degree of crystal growth in the molecular chain direction and the degree of crystal growth in the cross-sectional direction of the molecular chain, quaternary ammonium salt particles with excellent rinsability improvement effect can be obtained. This includes the ratio (1) of the first-order diffraction peak intensity (1) of the long-plane spacing to the maximum peak intensity (n) of the short-plane spacing in X-ray diffraction of a mono- or di-long-chain alkyl quaternary ammonium salt. /
It is necessary that (■) be 2.0 or less.

If this ratio exceeds 2.0, sufficient rinsing improvement effect cannot be obtained.

Component (D) is blended in an amount of 0.5 to 5% by weight. 0
．． If it is less than 5% by weight, sufficient rinsing improvement effect cannot be obtained;
If the amount exceeds 5% by weight, a complex is formed with the anionic activator, resulting in a decrease in detergency. Preferably it is in the range of 1 to 3% by weight. Furthermore, it is desirable that the particle size of the quaternary ammonium salt particles is in the range of 300 to 50 microns. If it is more than 300μ, insoluble substances will be generated during washing,
It remains undesirable on clothing. In addition, if it is less than 50μ, sufficient rinsing improvement effect cannot be obtained.

Preferred quaternary ammonium salts include dimethyl dihardened beef tallow alkylammonium methosulfate-1 and dimethyl dihardened beef tallow alkylammonium chloride. The rinsing improvement effect of these quaternary ammonium salts is particularly excellent.

The cleaning composition of the present invention may contain other surfactants, for example, anionic surfactants such as alkylbenzene sulfonates, alkyl ether sulfates, alkyl sulfates, polyoxygen Nonionic surfactants such as alkylene alkyl ether, polyoxyethylene alkylphenyl ether, higher fatty acid alkanolamide or its alkylene oxide adduct, alkylamine oxide, fatty acid monoglyceride, carboxy or sulfohetaine type amphoteric surfactant, etc. can be blended.

Other sequestrants include aluminosilicates, tripolyphosphates, nitrilotriacetates, ethylenediaminetetraacetates, citrates, and polyacrylates; alkaline agents or inorganic salts such as silicates, carbonates, and sulfates. , anti-recontamination agents such as carboxymethylcellulose, enzymes such as protease, amylase, lipase, and cellulase, bleaching agents such as sodium percarbonate and sodium perborate, and bleaching activities such as pentaacetylglucose and p-acetoxyhenzenesulfonate soda. peroxide stabilizers such as magnesium silicate and magnesium sulfate, antioxidants such as tert-butylhydroxytoluene, fluorescent dyes, blue tinting agents,
It may contain ingredients commonly used in detergents such as fragrances, but there is no particular limitation on this, and the formulation may be made depending on the purpose.

In the production of the composition of the present invention, it is an essential component (A
), (B), (C) and other detergent components by a known manufacturing method such as spray drying or granulation, and it is necessary to after-blend component (D) into the detergent fabric. When component (D) is added to the detergent fabric, the effects of the present invention cannot be obtained.

Incidentally, fragrances, bleaching agents, etc. may be added later.

〔Effect of the invention〕

The composition of the present invention not only has low foaming properties and excellent rinsability, but also has good detergency and powder properties, and is further characterized in that it does not leave any foreign odor on clothes after washing.

〔Example〕

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

Example 1 A foaming rinse test was conducted using a cleaning agent having the following composition. The results are shown in Table 1.

Tl) Detergent composition Blend amount (overlapping %) α
- Sodium olefin sulfonate (014-, 8) Hardened beef tallow alkyl fatty acid soda 5 Polyethylene glycol (MW 6000) 2 Quaternary ammonium salt
1.5 Zeo Lai
G 17 awns
Glass balance saw −
Da ash 12 silicate
- da 6 firefly light
Dye 0.2 incense
A small amount of water
4 (2) Quaternary ammonium salts Di-long-chain alkyldimethyl quaternary ammonium salts or mono-long-chain alkyltrimethyl quaternary ammonium salts shown in Table 1 with various crystal forms measured by the methods shown below Chain alkyl: C, 8/C,, = 53.6/46.4 (
weight ratio), particle size 50-300μ (average particle size 200-2
50μ)] was blended (after-blend) into a detergent fabric whose composition did not contain the quaternary ammonium salt.

The first-order diffraction peak intensity (1) of the long side spacing and the maximum peak intensity (■) of the side spacing were measured by the following method.

A sample was uniformly pressed into a glass cell for X-ray measurement, and an X-ray diffraction spectrum was measured under the following conditions.

The first-order diffraction peak height (2θ = 3.10”) of the long side spacing and the maximum peak height (2θ = 21.7°) of the side spacing were measured from the Hess line, and the intensity ratio (1) / (
II) was obtained.

(3) Foaming and rinsing test method Equipment: Washing machine Toshiba Galaxy 2.2 kg Experimental conditions: Detergent concentration: 0.133% Water temperature: 20°C Water used: Tap water 30 liter bath Ratio: l/25 (T/ C dress shirt 480g
, 720 g of cotton underwear) Stains: 2.4 g of model stains (Composition) Cottonseed oil 60% Cholesterol 10% Oleic acid 10% Palmitic acid 10% Liquid and solid paraffin 10% Experimental procedure ■) Pour 30 liters of water into a washing machine.

2) Add detergent and stir for 3 minutes.

3) Add the clothes and model dirt and start washing.

4) Evaluate foaming 5 and 10 minutes after starting washing. 5) While draining water, transfer the laundry to a spin-drying tank and spin-dry for 1 minute. Wash the washing tub thoroughly and drain the suds.

6) Pour 401 J knots of rinse water, loosen the laundry and add.

7) Stir for 3 minutes and evaluate rinsability from two points: turbidity and foam.

8) Repeat steps 5), 6), and 7) one more time.

Evaluation: Foaming rating rank 1: 10cm or more bubbles cover the entire liquid surface 25-9cm
32-4cm bubbles cover the entire liquid surface, or 5cm island-shaped bubbles remain 4. Rinse with 2-3cra bubbles covering about half of the liquid surface. Evaluation 5 Bubbles remain on the entire liquid surface 4 Approximately 172 bubbles remain on the liquid surface 3 Approximately 174 bubbles remain on the liquid surface 2 Fine bubbles remain on the liquid surface l Example 2 with no bubbles Cleaning agent with the following composition were adjusted and evaluated for foaming properties and water rinsability. The results are shown in Table-2.

Formulation ff1 (wt%) α-olefin sulfonic acid so'y'' (C10-11
1) (hereinafter abbreviated as AO5) Table 2 Linear alkylbenzenesulfonate sodium (CtZ) (hereinafter abbreviated as LAS) Table 2 Hardened beef tallow alkyl fatty acid soda (hereinafter abbreviated as soap) Table 2 Polyethylene glycol (MW 15000) ( Below P
I! (abbreviated as G) Table 2 Quaternary ammonium salt Table 2 (Used in Example 1, Experiment N15) Zeolite
20 pieces of salt
balance soda ash
lO silicate soda
10 carboxymethyl cellulose
Firefly light dye
0.2 fee Small amount of bone 4 Procedures (i1i official document (spontaneous) May 30, 1985 1, Indication of the case Patent Application No. 1983-83413 2, Name of the invention Detergent composition 3, Person making amendment case Relationship with Patent Applicant (091) Kao Co., Ltd. Company 4, Agent Nakai Building 6, 1-3 Nihonbashi Yokoyama-cho, Chuo-ku, Tokyo, Contents of Amendment

Claims (1)

[Claims] 1 (A) α-olefin sulfonate 3 to 20% by weight (B) Higher fatty acid salt 2 to 10% by weight (C) Polyethylene glycol having an average molecular weight of 1000 to 20000 0.5 to 5% by weight (D) Ratio of the first-order diffraction peak intensity (I) of the long side spacing and the maximum peak intensity (II) of the side spacing in X-ray diffraction (I
)/(II) is 2.0 or less, a cleaning composition comprising 0.5 to 5% by weight of powder particles of a mono- or di-long-chain alkyl quaternary ammonium salt.