JPS5871999A - 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 detergent composition that can be applied to clothes when washing them to reduce their softness at the same time as cleaning.

Conventionally, in order to improve flexibility or antistatic effect (J-7-7 for textiles such as clothing), anionic surfactants and cationic surfactants have been used together. is known (Special Publication No. 36-8927)
It has also been proposed to use an anionic surfactant in combination with a sparingly water-soluble cationic surfactant and a nonionic surfactant in order to impart flexibility to clothing at the same time as cleaning (Canadian patent No. 818,419 specification)
.

However, in the combination of only surfactants,
Although the addition of a cationic surfactant improves the feel of clothing, the detergency tends to deteriorate. For this reason, in combination systems of anionic surfactants and cationic surfactants, enzymes are added (British Patent No. 1375450) and phosphate birgoo is used (West German Publication (Japanese Patent No. 2433079), or the ratio of anionic surfactant to cationic surfactant can be adjusted by increasing the amount of anionic surfactant and adding phosphate ester or polymer electrolyte as a builder ( Attempts have been made, such as in Japanese Unexamined Patent Publications No. 54-108814, No. 54-39416, and No. 54-39417).

However, in a system where cationic surfactant 1'1 is present, it is difficult to exert a sufficient effect of improving enzyme rinsing, and phosphoric acid'2A and phosphoric acid ester that have been depleted are a problem of environmental pollution. On the other hand, increasing the proportion of anionic surfactants is good in terms of detergency, but it also has the effect of improving the feel of clothing. 7'1. None of the three attempts were satisfactory.

The inventors of the present invention took this into account and decided that when washing clothes, the clothes should be washed at the same +1. ! I soft 11φ (
In order to obtain a cleaning agent that can impart The inventors have discovered that the objective can be achieved by blending trirotriacetate or ethylenediaminetetraacetate as a builder in the same proportion, and based on this knowledge, they have completed the present invention.

That is, the present invention provides at least one selected from (A) an alkylbenzene sulfonate having an alkyl group having 8 to 16 carbon atoms, an alkyl sulfate, a polyoxyethylene alkyl ether sulfate, and a polyoxyethylene alkylphenol ether sulfate. One type of anionic surfactant (B) General formula (R in the formula is an alkyl group or alkenyl group having 14 to 22 carbon atoms, R2, R3 and R4 are an alkyl group or hydroxyalkyl group having 1 to 4 carbon atoms) , X is a halogen atom) 2 to 10% by weight of a cationic surfactant represented by (C) general formula % formula % (2) (R5 in the formula is an alkyl group having 8 to 6 carbon atoms, n is 0~
1, m is an integer of 6 to 16), and (D) an alkali metal nitrilotriacetate or an alkali metal ethylenediaminetetraacetate, or both. Contains 1 to 20% by weight 1 to -1-k
The molar ratio of component (A) and component (B) is 0.2.
Cleaning compositions ranging from 1:1 to 0.6:I are provided.

The anionic surfactant as component (A) used in the cleaning composition of the present invention is an argylbenzenesulfonate or argyl sulfate in which the number of carbon atoms in the alkyl group present in the molecule is in the range of 8 to 16. , polyoxyethylene alkyl ether sulfate or polyoxyethylene alkylphenol ether sulfate, and these are Q
They may be used alone or in combination of two or more.

The argyl group of the anionic surfactant may be linear or branched, and polyoxyethylene alkyl ether sulfate and polyogia ethylene alkylphenol ether sulfate t11, the average number of added moles of ethylene oxide thereof is 1 to 1o. Something within a certain range is preferable.

Further, as the sulfonate or sulfate of these anionic surfactants, for example, salts such as sodium salt, potassium salt, magnenium salt, ammonium salt, and alkanolamine salt are suitable.

The cationic surfactant as component (B) used in the composition of the present invention is a compound represented by the general formula (1), in which one R1 of the four alkyl groups bonded to the nitrogen atom is carbon. A mono-long chain alkyl type quaternary ammonium in which the remaining R2, R3, and R4 are alkyl groups or hydroxyalkyl groups having 1 to 4 carbon atoms, and is an alkyl group or alkenyl group having a carbon number of 14 to 22, preferably 16 to 2. It's salt.

These alkyl groups may be linear or branched, and R2, R3 and R4 may be the same or different. R1 is particularly preferably a tallow alkyl group having 16 to 20 carbon atoms, and R2 is preferably a methyl group or a hydroxyethyl group. Furthermore, examples of X include a chlorine atom, a bromine atom, an iodine atom, and the like.

This mono-long chain alkyl type quaternary ammonium salt has an inferior softening effect on normal fibers compared to di-long chain type argyl type quaternary ammonium l-salt, and this tendency is similar to that of nonionic surfactants and fjl. However, in the present invention, tll, which has a low softening effect (]
(2) The mono-long chain argyl type quaternary ammonium salt of the component is combined with the anionic surfactant of the component (Δ), and the molar ratio of the component (Δ) to the disintegration component is 0.2.
1: l to l'1.6: l, preferably 0. '
By using a nonionic surfactant in the range of 3:1 to 0.5:1, an excellent softening effect on fibers was obtained.

In this case, even if the ratio of component (A) to component (R3) exceeds 60% on a molar basis or is less than 24%, the softening effect on the fibers is significantly reduced.

In addition, the amount of component (B) to be blended is 2 to 1% per cleaning composition.
If 111 is less than 2% by weight, the softening effect will be insufficient, while if it exceeds 10% by weight, the detergency will deteriorate without further improving the softening effect r1. There is a tendency to

The nonionic surfactant as component (C) used in the cleaning composition of the present invention is a higher alcohol ethoxylate or higher alcohol propoxyethoxylate represented by the general formula (2), in which the alkyl group R5 is Carbon number 8~
16, which may be linear or branched, or may be a mixed alkyl group derived from natural fatty alcohols. In this component (C), it is necessary that the average number of added moles of propylene oxide is in the range of 0 to 1, the average number of added moles of ethylene oxide is in the range of 6 to 16, and the average number of added moles of propylene oxide is 1. or the average number of added moles of ethylene oxide is less than 6 or 1
Even if it exceeds 6, the cleaning power decreases.

In addition, the amount of component (C) blended is 10% based on the cleaning composition.
~25% by weight, and this amount is 10% by weight.
If it is less than 25% by weight, the detergency is insufficient, and if it is less than 25% by weight.
No further improvement in cleaning power is observed even if the amount exceeds that amount.

It is desirable to use a nonionic surfactant as component (C) that does not have any off-flavors and has been removed from unreacted higher alcohols by topping or other operations.

(1)) Component 2) used in the cleaning composition of the present invention
The alkali metal of J-rotriacetic acid alkali metal salt is:
Examples include sodium, potassium, etc., but preferred
d: Sodium. 1t is dl, and the sodium salt is usually used.

These alkali metal salts of nitrile acetate, ethylene cyaminthi I, and alkali metal acetate J'a Kano 1 may be used alone or mixed together, and the amount to be blended depends on the cleaning composition. It is in the range of 1 to 20% by weight, preferably 5 to 15 tons 1i%. If this amount is less than 1% by weight L, the detergency will be insufficient, and if it exceeds 20% by weight, no further improvement in detergency will be observed.

In addition, the cleaning composition of the present invention may include other ingredients as specified in 1.94, such as foaming additives such as fatty acid alkylamide and alkylamine oxide, zeolite, alkali metal silicate, alkali metal carbonate, and sulfuric acid. Builders such as alkali metal salts, carboquine methylcellulose (CMC)
, anti-resoiling agents such as polyethylene glycol (PEG), and other additives such as fluorescent brighteners, foam control agents, bleaches, dyes, fragrances, antioxidants, and the like.

The cleaning composition of the present invention contains the above-mentioned (A) component, (B) component, (C) component, and (D) component as essential active ingredients, and these components are blended in a specific range of proportions. By doing so, it is possible to impart excellent flexibility to textile products such as clothing while simultaneously cleaning them.

Next, the present invention will be explained in more detail with reference to examples, and the evaluation results shown in each example were performed using the following test method.

(-) Detergent power test method (1) Artificial soil cloth As inorganic soil, clay mainly composed of crystalline minerals such as kaolinite and vermiculite was dried at 200℃ for 30 hours, and the average particle size was reduced to μm. It was crushed and used. ! Gelatin 3.57 and carbon 0 in 15 Flcc water
．． Dissolve the seratin at approximately 40°C with a flow rate of 11 degrees Celsius and then a strong 71 degrees Celsius. Polytron (
The carbon was dispersed in water using a water filter (manufactured by KTNIljMΔi'rCA, Switzerland). Next, inorganic dirt 14! Add +2 and wash with Polytron for 11 minutes, then remove oily dirt by 31.
: (5g was added and emulsified and dispersed with Poly I-ron to make a stable dirt bath. In this 76 dirt bath, 1 (I 11n
Prescribed clear αF cloth of X20 drawing (Japan/111 Chemistry 111r
After soaking a cotton cloth (No. 60 designated by the Association), squeeze the water with a single rubber roll, and then dry the soiled cloth at 105°C for 30 minutes. s'f
'jυ1) Both sides of the cloth were rubbed 25 times on each side. Cut this into 5cm x 5m and the reflectance is /112 or above 2%
A range of items were subjected to filtration. Kou 1-tei (Ira J
Table 1 shows the soil composition of this artificial 1tj canvas cloth.

Table 1 (2) Sebum cloth (cotton knitted 5 on x 5 cm) with 60 mg of oily dirt shown in Table 1 attached to each piece.

(3) Clean knitted cloth knitted knitted cloth (same cloth used for sebum cloth) (4) Cleaning method The cleaning device was Terg- by IJ, S, Testing.
Use 0-'rometer and add 10 pieces of artificial dirt cloth to it.
Insert the sheet and 3 pieces of Sebam cloth, and add 7+'t? 'H Add stockinette cloth, adjust the bath ratio to 30 times,
p. Wash with skin for 10 minutes at 25°C. 61. and fE liquid t
1. Even with a cleaning agent concentration of 0.133%)! Rinse with 900+n6 water for 3 minutes using l 00 we. Water used r1: 3° ■ River water was used.

(5) Detergency evaluation method RiI: tearl, Zelsc 3 companies ELRr! :P
, 110 fouling rate K1 is the measured reflectance.

The value in the test example is the F-average value of one piece of artificial material to be tested.

(d) Flexibility test method Nylon Tricot I/Cloth (: (o denier): n)
yxs acrylic jersey cloth (
H/X 2 cotton towels 8CHF X
A test cloth consisting of 6 sheets of 90 f×2 cotton knitted cloth was washed for 15 minutes in a normal two-tank electric washing machine using a commercially available heavy laundry detergent and tap water at 30°C.
Pre-treat the test fabric by rinsing 3 times for 3 minutes each with tap water at 30°C.

Tap water at 25°C (hardness approx. 0) in the washing tank of a two-tank electric washing machine (jet type for washing, centrifugal type for dehydration)
) 30 t, detergent 407 and the above pre-treated cloth) K
9, washed for 10 minutes, dehydrated for 1 minute, and then
The procedure of rinsing with tap water at 5°C for 3 minutes and then dehydrating for 1 minute was repeated twice.

After that, the test cloth was air-dried for 24 hours, and 10 people judged the softness of the towel after drying.
It was measured according to the method described in USK Publishing Co., Ltd., 1963), pages 300-309.

Scheffe's paired comparison method shows that there is a clear difference between the softness of a pair of towels washed with two different detergents, with l + +2 for the softer towel.
Points, put 12 points on the stiff towel, if there is a slight difference, add 1 point, -1 point, and if there is no difference between the two K. Give 0 points.

Like this! Convenience store 1. - The relative flexibility h (Ill
Turn it on.

Example 1 Anionic Kai 7 (+1 active 1/1 cutting angle) cleaning compositions (2 + 1) shown in Table 2 were prepared (Ban 1, Noni 2) and the flexibility of each cleaning agent was determined. The results are shown in Table 2.

The cleaning Al1 composition of the present invention, j6-11, has better flexibility than the comparative example B22./17. +i Table 2 Example 2 Various nonionic surfactants shown in Table 4 were added to the composition shown in Table 3 at an amount of 15% by weight based on the total cleaning composition. The detergent compositions were prepared and their detergency was measured. The results are shown in Table 4.

The detergent composition of the present invention, &, l, and flat: (11) had a higher saturation a1 power of /1\ compared to the comparative examples of eggplant 4 and eggplant 5.

No. 3 Table 4 Table 4 Example 3 Higher alcohols (012 to C15) in the amounts shown in Table 5
) Propoxy (average '115-1) ethoxylate (average -10) was added to the composition of Table 3 of Example 2 to prepare detergent compositions, and their detergency was measured.

The results are shown in Table 5.

Bread 1 and A6, which are the detergent compositions of the present invention, exhibited higher cleaning power than Bread 8, which is a comparative example. Comparative example 7 is still A6
It can be seen that the detergency is the same as that of the nonionic surfactant, and the detergency does not change even if the amount of nonionic surfactant exceeds 25% by weight.

Table 5 Example 4 Cleaning agent compositions were prepared with varying amounts of the anionic surfactant and Jy thionic surfactant shown in Table 6, and their flexibility was measured. The results are shown in Tables 4' and 'ri. It showed better softness than Flat 11 and Flat 12.

Example 5 Sodium carbonate 10 Sodium silicate 10 Carboxymethyl cellulose 1 Sodium sulfate
38 water 10"
A cleaning composition was prepared by adding various builders shown in Table 7 to the detergent composition described in Table 7 in an amount of 10% by weight based on the total cleaning composition, and the flexibility and cleaning power were measured. The results are shown in Table 7.

Flat 1 and A13, which are the cleaning compositions of the present invention, had better flexibility and detergency than the comparative examples AI'4 and Flat 15.

Table 7 Patent applicant Lion Corporation Agent Akira Agata 21- 737-

Claims (1)

[Scope of Claims] 1(A) selected from alkylbensene sulfonates, alkyl sulfates, polyoxyethylene alkyl ether sulfates and polyoxyethylene alkylphenol ether sulfates having an alkyl group having 8 to 16 carbon atoms; and at least one anionic surfactant (B) with the general formula (R in the formula is an alkyl group or alkenyl group having 14 to 22 carbon atoms, R2, R3 and R4 are an alkyl group having 1 to 4 carbon atoms or hydroxy alkyl group, X is a halogen atom) Cationic surfactant represented by 2 to 10% by weight, (C) General formula %) (R5 in the formula is a carbon number 8 to 16) Lugyl group, n and m are the average number of moles added, ηC1 (an integer from 1 to ■, m is 6
10 to 25% by weight of a nonionic surfactant represented by
and (D) contains 1 to 20% by weight of an alkali metal salt of nitrilotriacetate or C1: alkali metal 47ul of ethylenediaminetetoacetate or both, and the blending ratio of components (A) and (B) is molar. and f), an a1^1 group 1 compound in the range of 24:1 to 6.6:1.