JPS62240391A - 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 detergent composition that has excellent rinsability and detergent particle caking prevention performance.゛ [Conventional technology and problems] Due to the modernization of lifestyles, the use of water has increased significantly.
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. Furthermore, when considering the rinsing time from the perspective of detergent components remaining on the clothes, it is known that rinsing time of about 5 minutes is sufficient under conditions that are considered standard, and if the rinsing time is too long, water There have also been reports that the iron contained in clothing adheres to clothing and accelerates yellowing of clothing. 2) 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 seems to be.

If the rinsing time is shortened, rinsing water is necessarily saved, which is 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 method of blending a higher fatty acid salt and a mono-long chain alkyl quaternary ammonium halide (Japanese Patent Publication No. 44-4658
A method of blending a mono-long chain alkyl quaternary ammonium halide as a method for improving the rinsing properties of detergents containing α-sulfo fatty acid ester salts and zeolite (No.
JP-A No. 59-4693) was known. However, the effect of improving the rinsing properties of these detergents is still insufficient, and the detergent disclosed in JP-A-59-4693 has the disadvantage that detergent particles tend to cake.

[Means for solving problems]

As a result of extensive research, the present inventors have found that a detergent containing α-sulfo fatty acid ester salt, higher fatty acid salt, and specific di-long chain alkyl quaternary ammonium salt in a specific ratio has an excellent rinsing property improvement effect. Surprisingly, they found that a detergent with this composition is difficult to cause caking, and completed the present invention. That is, the present invention provides (A) α-
Sulfo fatty acid ester salt 3-20% (B) Higher fatty acid salt 2-10% (C) General formula (wherein R2 and R2 are CIO to Ct□ alkyl or alkenyl groups, R2, R4 and R represents a lower alkyl group), and the ratio of the first-order diffraction peak intensity (1) of the long side spacing to the maximum peak intensity (1) of the side spacing in X-ray diffraction (
1) To provide a cleaning composition characterized in that it contains 0.5 to 5% of powder particles of a quaternary ammonium salt having a ratio of /(II) of 2.0 or less.

To explain in more detail, the α-sulfo fatty acid ester salt of component (8) has the following general formula % formula %: 1 (However, 1 to 5 is an alkyl or alkenyl group of CIO to C2°, and R is an alkyl or alkenyl group of C1 to C2. The alkyl group represented by C1 represents an alkali metal or an alkaline earth metal.

The blending amount is in the range of 3 to 20% by weight, and if it is less than 3% by weight, sufficient rinsing improvement effect cannot be obtained, and if it exceeds 20% by weight, the anti-caking performance of detergent particles decreases, which is not preferable. Furthermore, the alkyl group (R
When the chain length of s) contains 70% or more of C14 and Cl11, its rinsability is further improved. Such α-sulfo fatty acid ester salts include, for example, α-sulfoper 1
1 fatty acid methyl sodium salt and α-sulbohardened beef tallow fatty acid methyl sodium salt.

Component (B) is preferably a saturated or unsaturated fatty acid salt having an average carbon number of 10 to 20, and the amount thereof is 2 to 10% by weight.
is within the range of If it is less than 2% by weight, a good rinsing improvement effect cannot be obtained, and if it exceeds 10% by weight, the anti-caking performance of detergent particles will decrease, and the characteristic fatty acid odor will remain on the clothes after washing, which is not desirable. do not have. Preferably it is in the range of 3.5 to 7 double stars. Ions that serve as counter ions for fatty acids are preferably sodium, potassium, and magnesium, but are not particularly limited.

The (C) component di-long-chain alkyl quaternary ammonium salt used in the present invention has a dissociable quaternary nitrogen as a polar group, and two of the four groups bonded to this have a long-chain alkyl structure. It is a hydrophobic group, and the molecular shape is elongated and asymmetrical. Crystals of these substances grow in the direction of their molecular chains and in the direction in which the molecular chains are arranged in parallel. In the X-ray diffraction pattern of such a crystal, diffraction lines originating from repeating units in the molecular chain direction are obtained in the long surface region, and diffraction lines originating from repeating units in the cross section of the molecular chain are obtained in the short surface region. 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 having an excellent rinsability improving effect can be obtained. This requires 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 determined by X-ray diffraction of a di-long-chain alkyl quaternary ammonium salt.
/ (II) must be 2.0 or less.

If the quaternary ammonium salt of the present invention is other than the quaternary ammonium salt of the present invention, for example, a mono long-chain alkyl quaternary ammonium salt, or if the salt is a halogen, even if this ratio is 2.0 or less, it is still considered as the object of the present invention. The effect of improving sootability and caking property cannot be obtained.

Component (C) 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 dicured tallow alkyl ammonium methosulfate and dimethyl dicured tallow alkyl ammonium sulfate. The rinsing improvement effect of these quaternary ammonium salts is particularly excellent.

The cleaning composition of the present invention may contain other surfactants, such as anionic surfactants such as alkylbenzene sulfonates, alkyl ether sulfates, alkyl sulfates, and olefin sulfonates, to the extent that the effects of the present invention are not impaired. activator,
Polyoxyalkylene alkyl ether, polyoxyethylene alkylphenyl ether, high Ngt fat fa
Nonionic surfactants such as alkanolamide or its alkylene oxide adduct, alkylamine oxide, fatty acid monoglyceride, carboxy or sulfobetaine type amphoteric surfactants, 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. , polyethylene glycol, recontamination inhibitors such as carboxymethyl cellulose, enzymes such as protease, amylase, lipase, cellulase, bleaching agents such as sodium percarbonate and sodium perborate, pentaacetyl glucose, p-acetoxybenzenesulfonate soda, etc. Contains common detergent ingredients such as bleach activators, peroxide stabilizers such as magnesium silicate and magnesium sulfate, antioxidants such as tert-butylated hydroxytoluene, fluorescent dyes, blue tints, and fragrances. However, this is not particularly limited and may be blended according to the purpose.

In the production of the composition of the present invention, it is an essential component (A
), (B), and other detergent ingredients by spray drying method,
It is necessary to after-blend component (C) into the detergent material produced by a known production method such as granulation. When component (C) 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 excellent rinsability and powder physical properties, but also has good washability, 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 rinsing test was conducted using a cleaning agent having the following composition. The results are shown in Table 1.

+11 Detergent composition Amount (weight%) α
-Sulfopam fatty acid methyl soda salt Hardened beef tallow alkyl fatty acid soda 5 Quaternary ammonium salt
1.5 Zeo Light
17 awns
Nitrate Neulanth Soda Ash 12-Silicic Acid Soda
- Da 6 polyethylene glycol (MW = 6000) 2 Firefly light dyeing
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: C1a/C+i =53.6/46.4
(weight ratio), particle size 50~300μ (average particle size 200~
250μ)] was blended (after-blended) 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.

[First-order diffraction peak height (2θ = 3.10”) at a bending rate of 2.0°/min long surface spacing
The maximum peak height (2θ = 21.7°) of the distance between the sides and the sides was measured from the baseline, and the intensity ratio (+) / shown in Table 1 was obtained.
(II) was obtained.

(3) Rinseability test method Apparatus: 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 shirt 480g
, 720 g of cotton underwear) Re: 2.4 g of model soil (Composition) Cottonseed oil 60% Cholesterol 10% Oleic acid 10% Palmitic acid 10% Liquid and solid paraffin 10% Experimental procedure l) 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 wash for 10 minutes.

4) While draining the water, transfer the laundry to the dehydration tank and spin it for 1 minute. Wash the washing tub thoroughly and drain the suds.

5) Pour 40 liters of rinse water, loosen the laundry and add.

6) Stir for 3 minutes and evaluate rinsability from foam.

7) Repeat steps 4), 5), and 6) one more time.

Evaluation: Rinse rating 5 Bubbles remain on the entire liquid surface 4 Approximately 1/2 bubbles remain on the liquid surface 3 Approximately 174 bubbles remain on the liquid surface 2 Fine bubbles remain on the liquid surface 1 No bubbles (4) Caking The test detergents were packaged in 2.65 kg each in detergent cartons that had not been subjected to moisture-proofing treatment, and heated at 30°C and 80RH.
It was left standing in a room adjusted to %.

After leaving it for a certain period of time, open the carton gently and open it for 5m.
The weight ratio of the detergent solidified to a size of 5 mm or more was determined using a No. m sieve, and the ease of caking was compared.

Example 2 A cleaning agent having the following composition was prepared and a rinsability test was conducted. The results are shown in Table-2.

Blend amount (wt%) α-Sulfohardened beef tallow fatty acid methyl soda salt (hereinafter α-3
(abbreviated as PE) Table 2 Linear alkylhenzenesulfonic acid sodium (C+□) (hereinafter abbreviated as LAS)
Table-2 Hardened beef tallow alkyl fatty acid soda (hereinafter abbreviated as soap) Table-2 Quaternary ammonium salt Table-2 (Example 1,
(Used in Experiment 5) Zeolite 20 awns
Glass balance saw −
Da ash 10 silicic acid
- Da 10 Polyethylene Glycol (MW 13000) 1 Firefly Light Dye 0.2 Fragrance
Fee: Small amount of water: 4 hands vE*ili official book (voluntary) May 1986: 50 units

Claims (1)

[Claims] 1 (A) α-sulfo fatty acid ester salt 3 to 20% by weight (B) Higher fatty acid salt 2 to 10% by weight (C) General formula (A) ▲ Contains mathematical formulas, chemical formulas, tables, etc. ▼ or (b) ▲ There are mathematical formulas, chemical formulas, tables, etc. Powder particles of a quaternary ammonium salt having a ratio (I)/(II) of the first-order diffraction peak intensity (I) of the long side spacing and the maximum peak intensity (II) of the side spacing in line diffraction of 2.0 or less 0
．． A cleaning composition characterized in that it contains 5 to 5% by weight.