JPS5822079B2 - detergent composition - Google Patents

Description

[Detailed description of the invention] FIELD OF THE INVENTION This invention relates to detergent compositions.

More specifically, the present invention relates to a detergent composition having an excellent anti-recontamination effect.

Conventionally, the texture improvement treatment of clothes at home has been a two-step process in which dirt is removed with a detergent, and then texture-improving finishing agents such as fabric softeners and antistatic agents are dissolved in a clean water bath and the clothes are immersed. I came.

However, recently, cleaning agents have been developed that perform both the cleaning process and the texture improvement process simultaneously in one bath, and the market for such products is expanding from the viewpoints of shortening cleaning time and economical effectiveness.

However, since this product uses a cationic activator as a texture improving treatment agent such as a fabric softener, it is necessary to mainly use a nonionic activator as a cleaning base. Redeposition, or recontamination, is a problem.

The present inventors have conducted intensive research on prevention of soil re-deposition, that is, prevention of re-contamination, in combination systems of cationic activators and nonionic activators. It has been unexpectedly discovered that by using a specific anionic activator in combination, a re-staining prevention effect can be achieved without impairing the cleaning and texture improving effects, leading to the present invention.

That is, the cleaning composition of the present invention contains the following three components (1) to (iii) as essential components.

(1) A secondary alcohol ethoxylate represented by the general formula (1,) and having an HLB of 9 or more (in the formula, R and R' have a sum of carbon numbers in the range of 9 to 11 and an average phase of 9 .5 to 10.5, and n is a number from 3 to 12) (11) Cationic activator represented by general formula (2) [wherein at least one of R1 and R2 is an alkyl group having 14 to 20 carbon atoms, the remainder represents an alkyl group having 1 to 5 carbon atoms, and R3 is an alkyl group having 1 to 5 carbon atoms or -11-C
H2CH20-')-HH (m is a number such that the average number of moles of ethylene oxide added in one molecule is 5 to 30)
represents a halogen atom, CH3SO4 or CH3
Represents CH2SO4.

] (4) A weight ratio of 70/30 to 10/90 between the linear alkyl polyoxyethylene sulfate salt represented by the general formula (3) and the branched chain alkyl polyoxyethylene sulfate salt represented by the general formula (4). Mixture R4-0-(CH2CH20 sho-80M (3)
3 (wherein, R4 is a straight chain alkyl group having a carbon number distribution of 6 to 15 and an average carbon number of 8 to 14, and p is an average value of the mixture of 0.5 to 3. 5
It is.

M is any one of an alkali metal, an alkaline earth metal, ammonium, or an alkanolamine having 2 or 3 carbon atoms.

) (wherein, R5 is a straight chain alkyl group having 1 to 13 carbon atoms, R6 is a straight chain alkyl group having 1 to 4 carbon atoms, and the prime number is 8 to 1.
It is a group having a carbon number distribution such as 4.

p and M represent the same meanings as the symbols in formula (3).

) The appropriate proportions of these three essential components in the detergent composition are as shown below (% is an abbreviation for weight %).
.

Secondary alcohol ethoxylate of component (1) 0.5 to 40% preferably 5 to 25% Cationic activator o, i of component (11) to 10% preferably 0.5 to 5% component (11)
1) Alkyl polyoxyethylene sulfate ester salt mixture 0.01 to 50%, preferably 0.25 to 25% The mutual blending ratio of these three components is not particularly limited, but the alkyl polyoxyethylene sulfate salt mixture of component (ili) o of the amount of the cationic activator of component (11) in the salt mixture;
Most preferably, it is blended in an amount of i to 5 times by weight.

The nonionic activator used in the present invention is a secondary alcohol ethoxylate represented by the general formula The effects of the present invention cannot be achieved with nonionic active agents such as ethylene sorbicun fatty acid esters, etc.).

In addition, the number of carbon atoms in the alkyl chain of the secondary alcohol ethoxylate and the number of moles of hyethylene oxide added need to be specifically limited. If the material is soft, the softening effect is poor and the effects of the present invention cannot be obtained.

In the present invention, the average number of carbon atoms in the alkyl chain length of the secondary alcohol ethoxylate is 10.5 to 115, that is, the average number of carbon atoms in R and R' of the general formula (1) is 9.5 to 10. Must be 5.

Furthermore, it is required that the lipophilicity-hydrophilicity balance (HLB) be 9 or more.

The cationic activator used as a clothing softener in the present invention is represented by the general formula (2), and preferred cationic activators include di-tallow alkyldimethylammonium chloride and mono-tallow alkyltrimethylammonium chloride. , mono-tallow alkyldipolyoxyethylene (
Average number of moles of ethylene oxide added is 5 to 12) Monomethylammonium chloride is exemplified.

The anionic activator used in the present invention is a mixture of alkyl polyoxyethylene sulfate salts represented by general formulas (3) and (4), which are the cationic activator represented by general formula (2). The general formula (3), which is an anionic activator with limited effect, has the effect of preventing recontamination without reducing the softening effect of clothing by forming a complex with
It is unexpected that this was observed only in the alkyl polyoxyethylene sulfate salt mixtures represented by ) and (4).

Although the mechanism for preventing recontamination of the present invention has not yet been completely elucidated, it is thought that the degree of branching of the alkyl chain of the alkyl polyoxyethylene sulfate salt is involved.

Such effects cannot be achieved with anionic activators such as alkylbenzene sulfonates, alkyl sulfates, α-olefin sulfonates, higher fatty acid salts, and zwitterionic activators such as alkylbetaines and alkylsulfobetaines.

The mixing weight ratio of the linear alkyl polyoxyethylene sulfate salt represented by the general formula (3) and the branched chain alkyl polyoxyethylene sulfate salt represented by the general formula (4) is 70:30 to 10:90. It requires that.

The powder or liquid detergent composition for clothing containing the above-mentioned essential components of the present invention may optionally contain various anionic surfactants and amphoteric surfactants shown in (1) to (9) below, either alone or in combination. It can be blended in an amount of 1 to 50% by weight, preferably 5 to 40% by weight.

In the case of anionic surfactants, the counter ions include alkali metal ions such as sodium and potassium, alkaline earth metal ions such as calcium and magnesium, ammonium ions, and alkanol groups having 2 or 3 carbon atoms. Examples include alkanolamines having 1 to 3 alkanolamines (for example, monoethanolamine, jetanolamine, triethanolamine, triimpropanolamine, etc.).

(1) A straight or branched alkylbenzene sulfonate having an alkyl group having an average carbon number of 10 to 16; (2) having a straight or branched alkyl group or alkenyl group having an average carbon number of 10 to 20; Alkyl or alkenyl ethoxy sulfate with an average of 0.5 to 8 moles of ethylene oxide added in one molecule (3) Alkyl or alkenyl sulfate having an alkyl or alkenyl group with an average of 10 to 20 carbon atoms (4) Average of 10 Olefin sulfonate having ~20 carbon atoms in one molecule (5) Alkanesulfonate having an average of 10 to 20 carbon atoms in one molecule (6) An average of 10 to 24 carbon atoms in one molecule Saturated or unsaturated fatty acid salt (7) having an alkyl group or alkenyl group with an average carbon number of 10 to 20, and an average of 0.5 to 8 moles of ethylene oxide, propylene oxide, butylene oxide, or ethylene oxide/ Alkyl or alkenyl ether carboxylic acid added to propylene oxide in a ratio of 0, 1/9.9 to 9.970.1 or ethylene oxide/butylene oxide in a ratio of 1/9.9 to 9.910.1 Salt (8) α-sulfo fatty acid salt or ester represented by the following formula [wherein Y is an alkyl group having 1 to 3 carbon atoms or a counter ion of the anionic surfactant, and Z is the anionic surfactant] is the counterion of the agent.

R7 represents an alkyl group or alkenyl group having 10 to 20 carbon atoms.

] (9) Ampholytic surfactant represented by the following formula [wherein R
8 represents an alkyl group or alkenyl group having 10 to 20 carbon atoms, R9 and Rlo are an alkyl group having 1 to 4 carbon atoms,
p' is an integer of 1 to 3, and X represents -COO◯ or -5O3e group.

] Also, in the present invention, a nonionic surfactant other than the above-mentioned essential components may be added as an optional component.

Such nonionic surfactants are not particularly limited as long as they are used in ordinary detergent compositions, and examples include the following.

(A) Polyoxyethylene alkyl having an alkyl group or alkenyl group with an average carbon number of 10 to 20 and to which 1 to 20 moles of ethylene oxide has been added (excluding secondary ones)
) or alkenyl ether (B) has an alkyl group with an average carbon number of 6 to 12, and 1
Polyoxyethylene alkyl phenyl ether with ~20 moles of ethylene oxide added (0 average carbon number 10
~20 alkyl or alkenyl groups, 1~20
Polyoxypropylene alkyl or alkenyl ether (D) having an average carbon number of 10 to 20 alkyl or alkenyl groups and having 1 to 20 moles of butylene oxide added to it. (8) A nonionic surfactant having an alkyl group or alkenyl group with an average carbon number of 10 to 20 and adding a total of 1 to 30 moles of ethylene oxide and propylene oxide or ethylene oxide and butylene oxide (ethylene oxide and propylene oxide). oxide or butylene oxide is 0.179.9 to 9,910.1) (
PI Higher fatty acid alkanolamide or its alkylene oxide adduct represented by the following general formula [wherein R11 is an alkyl group or alkenyl group having 10 to 20 carbon atoms, R1□ is H or CH3, and n' is 1 m' is an integer of 0 to 3; m' is an integer of 0 to 3;

] (G) Sucrose fatty acid ester consisting of a fatty acid with an average carbon number of 10 to 20 and sucrose Fatty acid glycerin monoester consisting of a fatty acid with an average carbon number of 10 to 20 and glycerin (I) Alkylamine represented by the following general formula Oxide [In the formula, R13 is an alkyl group or alkenyl group having 10 to 20 carbon atoms, and R14 and R15 are an alkyl group having 1 to 3 carbon atoms.

] Furthermore, in addition to the above-mentioned essential components, one or more of the following various alkali metal salts may be contained in an amount of 0 to 50% as a builder component.

Condensed phosphates such as tripolyphosphate, pyrophosphate, metaphosphate, aminopolyacetates such as nitrilotriacetate, ethylenediaminetetraacetate, diethylenetriaminepentaacetate, citrate, malate, glycolate, etc. Polymer electrolytes such as oxycarboxylic acid salts, polyacrylic acid, alkali hydrolyzed salts of vinyl acetate-maleic anhydride copolymers, etc.

Furthermore, the composition may contain 1 to 50% by weight, preferably 5 to 30% by weight of one or more of the following various alkali metal salts as an alkaline agent or an inorganic electrolyte.

Silicates, carbonates, sulfates.

Furthermore, alkanolamines represented by triethanolamine, jetanolamine, monoethanolamine, triisopropanolamine, etc. can also be contained as an organic alkali agent.

Further, one or more of the following compounds can be contained in the composition in an amount of 0.1 to 5% as a redeposition preventive agent.

Polyethylene glycol, polyvinyl alcohol, polyvinylpyrrolidone, carboxymethyl cellulose, etc.

As a bleaching agent, use sodium percarbonate, sodium percarbonate, sodium sulfate, sodium chloride, hydrogen peroxide adduct, etc. As a whitening agent, in addition to commercially available fluorescent dyes, fragrances, enzymes, blue tinting agents, etc. may be used as necessary. Can be blended.

Additionally, water-insoluble substances such as talc, finely powdered silica, clay, calcium silicates (e.g. Johns-
Manvi 11 microcell, etc.), and 11 zeolite 1', which has a divalent metal ion exchange ability as shown below, can also be blended as necessary.

A crystalline or/and amorphous aluminosilicate represented by the following u) x (M20) ・A 1203 ・y (S 10
2) ・NV (R20) (u) (wherein M represents a sodium and/or potassium atom, x, y, w
represents the number of moles of each component within the following numerical range.

0.7≦X≦1.2 1.6≦y≦2.8 W is any positive number including O) Crystalline or/and amorphous zeolite represented by the following 1EQv);・Y (5102)
・Z (P2O5) ''' (R20)
(v) (where M is Na or K, X, Y, Z, ω
represents the number of moles of each component within the following numerical range.

0.20≦X≦1.10 0.20≦Y≦4.00
0.001≦2≦0.80 ω: Any positive number that is equal to 0) Fluorescent dye, for example, the following structural formulas (b), (X), (y)
Those shown in can also be blended.

Furthermore, viscosity reducing agents such as lower alcohols such as ethanol and ingropanol, ethylene glycol, propylene glycol, etc., urea, benzenesulfonate, P-toluenesulfonate, xylene sulfonate, and benzoate. , salicylates, clouding agents such as polyvinyl acetate, M vinyl-styrene copolymer, polystyrene, etc. can also be blended.

When water is used in the present invention, tap water, ion exchange water, etc. can be used.

In the case of powdered detergent, the volatile content calculated from the weight loss after drying at 105°C for 2 to 4 hours is also considered to be water.

The detergent composition of the present invention can be in the form of solid, powder, liquid, paste, slurry, etc.

Furthermore, it is possible to produce products that do not contain or contain the various alkali builders mentioned above depending on the intended use.

Thus, according to the present invention, it is possible to obtain a detergent composition that has excellent cleaning effects, is free from re-staining properties, and imparts excellent flexibility to objects to be cleaned.

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

% in the examples indicates weight %. In addition, evaluation in Examples was performed by the following method.

Recontamination Prevention 1F Test> After dissolving detergent composition 2.52 in tap water 11, 0.2
0P carbon black was added and ultrasonic waves were applied for 10 minutes to uniformly disperse the carbon black.

After transferring this test bath to the washing bath of the turbotometer,
4 clean test white cloths (10c111X 10CrrL)
The mixture was stirred for 15 minutes using a turbotometer at 25°C.

Thereafter, the test bath was discarded, clean tap water 11 at 25°C was added, and the mixture was stirred for an additional 5 minutes and rinsed.

After rinsing, the test fabrics were centrifuged and air dried.

"Wool'", "acrylic" mentioned in the examples,
``Momen'' indicates the following fabric; ``Wool''1; Commercially available preshrunk white sweater 11 Acrylic + 1; Acrylic jersey knit cloth 11 Momen''; JI
S LO206 The test cloth after the white cloth test, in which Kanakin was boiled and washed with water, was classified into the following two stages and the recontamination prevention effect was determined; ○: As white as the original test cloth. X: // It became blacker.

<Flexibility test> 301X60 with water temperature 30℃, 025% detergent aqueous solution 51
Five CrrL acrylic chassis or one recontamination prevention test wool sweater were hand washed.

After air-drying, the acrylic chassis or wool sweater was subjected to a tactile test by five judges, and ranked as follows.

A: The detergent was softer than the standard detergent.

B: 〃 Finished the same or hard.

Example 1 Table 1 shows the results of the anti-resoiling test and softness test for the following light liquid detergent composition.

Detergent Composition Example 2 The results of examining the effects of various nonionic surfactants are shown in the second example.
Shown in the table.

Detergent Composition Example 3 The powder and liquid heavy-duty detergents shown in Table 3 were examined for anti-recontamination effect and softening effect.

Claims (1)

[Claims] 1(1) A secondary alcohol ethoxylate represented by the general formula (1) and having an HLB of 9 or more, (wherein R and R' have a total number of carbon atoms in the range of 9 to 11) is an alkyl group with an average sum of 9.5 to 10.5, and n is 3
1) A cationic activator represented by the general formula (2), [wherein at least one of R1 and R2 is an alkyl group having 14 to 20 carbon atoms, and the remainder is an alkyl group having 1 to 5 carbon atoms] represents an alkyl group of
R3 is an alkyl group having 1 to 5 carbon atoms or +CH2CH2
OCH3CH2O represents a number such that the average number of moles of ethylene oxide added in H is 5 to 30, and X represents a halogen atom, CH3SO4 or CH3CH2SO4. ] (111) Weight ratio of linear alkyl polyoxyethylene sulfate salt represented by general formula (3) to branched chain alkyl polyoxyethylene sulfate salt represented by general formula (4) 70/30 to 10/90 A mixture of .5
It is. M is any one of an alkali metal, an alkaline earth metal, ammonium, or an alkanolamine having 2 or 3 carbon atoms. ) (wherein, R5 is a straight chain alkyl group having 1 to 13 carbon atoms, R6 is a straight chain alkyl group having 1 to 4 carbon atoms, and the prime number is 8 to 1.
It is a group having a carbon number distribution of 4. p and M represent the same meanings as the symbols in formula (3). ) as an essential component. 2. The detergent composition according to claim 1, wherein the amount of the alkyl polyoxyethylene sulfate salt mixture as component (111) is o, i to 5 times by weight the amount of the cationic activator as component (11). thing. 3. Claim 1, wherein R3 of the cationic activator represented by general formula (2) is an alkyl group having 1 to 5 carbon atoms.
The detergent composition according to item 1 or 2. 4. The detergent composition according to claim 1 or 2, wherein R3 of the cationic activator represented by the general formula (2) is +CH2CH2OCH3CH2O (same as H).