JPH0753994A - Stable flowable water-based liquid detergent composition containing peroxy acid bleacher and highly concentrated nonionic surfactant - Google Patents

Abstract

PURPOSE: To obtain a stable flowable aqueous liquid detergent composition by mixing a solid substantially water-insoluble organic peroxyacid with an 8-20C alkyl ethoxylate, a bleach-compatible anionic surfactant, a specified pH jump system, a xanthan polysaccharide, and a fatty acid.

CONSTITUTION: There is provided a composition containing the following components (a) to (f):(a) about 1 to about 30 wt.% solid substantially water- insoluble organic peroxyacid; (b) about 10 to about 40 wt.% 8-20C alcohol ethoxylated with about 2 to about 20 mol, on the average per mold of the alcohol, of ethylene oxide; (c) 0 to about 10 wt.% bleach-compatible anionic surfactant; (d) about 2 to about 40 wt.% pH jump system (desirably, borax/ sorbitol system) giving a pH of about 3 to about 6 to the composition and giving a pH of about 7 to about 10 to a diluted solution when the composition is diluted; (e) about 0.05 to about 2 wt.% agar or xanthan polysaccharide; and (f) about 0.5 to about 3 wt.% 10-14C fatty acid.

COPYRIGHT: (C)1995,JPO

Description

Detailed Description of the Invention

[0001]

This invention relates to a stable, substantially water-insoluble organic peroxy acid, a C _8-20 alkyl ethoxylate, a fatty acid, an agar or a xanthan polysaccharide, and a stable pH jump system. Flowable aqueous liquid detergent.

[0002]

PRIOR ART AND PROBLEMS TO BE SOLVED BY THE INVENTION US Pat. Nos. 4,992,194 and 5,07.
3,285, Aqueous structured heavy duty liquid detergent formulations containing a solid, granular, substantially water-insoluble organic peroxy acid, a mixed surfactant, a pH adjusting system, and a debinding polymer of interest. Things are listed.

US Pat. No. 4,879,057 discloses an aqueous bleaching suspension containing a peroxycarboxylic acid suspended in a carrier liquid in the presence of an organic thickening agent and an acidifying agent. ing. This suspension contains agar or xanthan polysaccharide as a thickener and a hydrate-forming neutral salt.

Aqueous liquid detergent products containing suspended solids, such as solid, substantially water-insoluble peroxyacids, have problems of phase stability, especially at fluctuating ambient temperatures to which such products may be exposed. There is.

Yet another problem is product pH and wash solution pH. The reason is that low product pH is required for bleach stability, while alkaline wash liquor pH favors cleaning and bleaching efficacy (US Pat. No. 4,25).
Refer to the specification of No. 9,201).

Finally, when product detergent surfactant levels are increased with such compositions for better cleaning and bleaching performance, product viscosity often increases to unacceptable levels.

[0007]

SUMMARY OF THE INVENTION A stable, fluid, aqueous liquid detergent composition provides a phase-stabilizing xanthan polysaccharide together with a specific pH-jump system for cleaning performance and product bleach stability. It has now been found that it can be formulated by incorporating 2% by weight into a suspension containing peroxyacid. This is achieved without the use of stability enhancing polymers which are copolymers of hydrophobic and hydrophilic monomers.

In order to improve the cleaning performance without adversely affecting the product viscosity, the ethoxylated nonionic surfactant can be added in an amount greater than that of the anionic surfactant (containing peroxy acid and xanthan polysaccharide). It has also been found that a stable flowing aqueous liquid detergent composition can be achieved which (in said composition) is reasonably well washed and bleached (even in the absence of enzymes and an effective amount of detersive builders). In this second class of high nonionic surfactant compositions with product stability and good detergency,
Some small amounts of fatty acids are also included for phase stability.

The present invention is based on the weight of the composition: (a) about 1 to about 1% solid, substantially water-insoluble organic peroxy acid.
About 30%; (b) about 10 to about 40% _C8-20 alcohol ethoxylated with an average of about 2 to about 20 moles of ethylene oxide per mole of alcohol; (c) bleach compatible anionic surfactant. 0 to about 10%;
And (d) about 2 to about 40 pH jump system which results in a pH in the composition of about 3 to about 6 and upon dilution of the composition a pH of about 7 to about 10.
%; (E) Agar or xanthan polysaccharide about 0.05 to about 2%;
And (f) a stable flowable aqueous liquid detergent composition, characterized in that it comprises from about 0.5 to about 3% of _C10-14 fatty acids.

The composition according to the invention is aqueous and preferably about 30 to about 70% water (preferably distilled and deionized water), preferably about 40 to about 40% by weight of the composition.
About 60% and about 30 to about 70% active ingredient, preferably about 40 to about 60%.

A. Peroxy Acid The composition of the present invention comprises from about 0.5 to about 30% by weight of the composition,
Preferably about 1 to about 20% by weight, most preferably about 1.
5 to about 5% by weight solids of substantially water-insoluble organic peroxy acid. The organic peroxyacid should be uniformly suspended throughout the liquid detergent composition.

The following organic peroxy acids (IUPAC name)
Are preferred: 4-nonylamino-4-oxoperoxybutyric acid (“NAPSA”); 6-nonylamino-6-oxoperoxyhexanoic acid (“NAPAA”); 1,12
-Diperoxide decanedioic acid ("DPDA"); heptylsulfonylperpropionic acid; decylsulfonylperpropionic acid; heptylsulfonylperbutyric acid, octylsulfonylperbutyric acid, nonylsulfonylperbutyric acid, and decylsulfonylperbutyric acid; and phthaloylaminoperoxy. Caproic acid.

Of the organic peroxy acids, amido peroxy acids (amide substituted peroxy carboxylic acids) are preferred. Suitable amidoperoxy acids for use herein include
U.S. Pat. Nos. 4,634,551 and 4,6
86,063. Suitable amidoperoxy acids have the formula

[0014]

[Chemical 1] Or

[0015]

[Chemical 2] Wherein R ¹ is an alkyl group having about 6 to about 12 carbon atoms and R ² is alkylene having 1 to about 6 carbon atoms. Preferably, R ¹ is an alkyl group having about 8 to about 10 carbon atoms and R ² is an alkylene group having about 2 to about 4 carbon atoms.

Further, peroxy fumarate described in US Pat. No. 4,852,989 and US Pat. Nos. 4,758,369, 4,824,591, and 5,004. The sulfone peroxy acids (sulfone peroxy carboxylic acids) described in US Pat.

The most preferred amido peroxy acids are monononyl amido peroxy adipic acid (NAPAA; most preferred), monononyl amido peroxy succinic acid (N
APSA), and 1,12-diperoxide decanedioic acid (DPDA).

Another name for NAPAA is 6- (nonylamino) -6-oxocaproic acid. The chemical formula of NAPAA is

[0019]

[Chemical 3] Is. The molecular weight of NAPAA is 287.4.

Example I of US Pat. No. 4,686,063 is at column 8, line 40 through column 9, line 5 for a description of the synthesis of NAPSA, column 9, line 15 through column 9, NAP in 65 lines
Includes a description of the synthesis of AA. At the end of the amidoperoxy acid synthesis, the reaction mixture is quenched with water, filtered, washed with water to remove some excess sulfuric acid (or other strong acid used in forming the peroxy acid) and filtered again. .

The amidoperoxyacid wet cake thus obtained can be contacted with a phosphate buffer at a pH of about 3.5-6, preferably about 4-5 according to US Pat. No. 4,909,953. . US Pat. No. 5,055,
No. 218 describes bleach granules containing amido peroxy acid.

The NAPAA filter cake of the present invention is preferably washed twice in phosphate buffer. Two sequential phosphate buffer washes give optimal stability to NAPA.
It was found to give to A.

NAPAA can be generated, for example, as follows. First, NAAA (monononylamide of adipic acid)
React with sulfuric acid and hydrogen peroxide. The reaction product is quenched by addition to ice water, then filtered, washed with distilled water and subjected to a final suction filtration to recover the wet cake. Washing can be continued until the pH of the filtrate is neutral.

The preferred NAPAA is thermally annealed (or thermally agglomerated) (meaning heating to 70 ° C.), then quenched and filtered.

Phtharoylaminoperoxycaproic acid ("PA" described in US Pat. No. 5,073,285)
P ") are also suitable for use herein.

Particulate (solid) organic peroxy acids having a theoretical AvO (available oxygen) of about 3 to about 15, most preferably 5 to 12, are preferred.

B. Detergent Surfactant The present composition comprises from about 5 to about 50% by weight of the composition, preferably from about 10 to about 40%, most preferably from about 15 to about 30%.
% Of detergent surfactant, preferably nonionic and / or anionic surfactant. Preferred compositions for the second high nonionic surfactant type composition having phase stability are from about 10 to about 40% by weight of the composition, preferably from about 12 to about 30%, most preferably about 15. To about 20% by weight, on average about 2 to about 2 per mole of alcohol.
C _8-20 ethoxylated with 0 mol of ethylene oxide
Alcohol; and bleach compatible anionic surfactant 0
To about 10%, preferably about 5 to about 8%.

An average of about 4 to about 15 per mole of alcohol
More preferred are C _10-18 alcohols ethoxylated with moles, more preferably from about 6 to about 12 moles ethylene oxide. Blends of blends and C _{10 to 18} alkyl ethoxylate C _{10 to 18} alkyl ethoxylate and additional detergent surfactants are also encompassed here. Per mole of alcohol average 6-9 moles of ethylene oxide in the ethoxylated C _{12 to 15} alcohol is a C _{12 to 15} alkyl ethoxylates (E6~9) is most preferred. The most preferred anionic surfactant is a C ₁₂ linear alkylbenzene sulfonic acid.

Preferably, the composition is ethoxylated in a ratio of about 1: 1 to about 30: 1, preferably about 2: 1 to about 20: 1, most preferably about 2: 1 to about 4: 1. Nonionic surfactant: Includes anionic surfactant.

[0030] These groups preferably consisting of C _{9 to 20} linear alkylbenzene sulfonates, C _{8 ~ 18} alkenyl carboxymethyl sulfonate, E _{2 to 20} ethoxylated C _{10 to 20} alcohols, polyhydroxy fatty acid amides, and mixtures thereof Chosen from. C _{10 to 14} linear alkylbenzene sulfonate (most preferred), and E _{2 ~ 5}
More preferred are ethoxylated _C12-18 alcohols.

1. Anionic Surfactants Anionic surfactants useful for cleaning purposes are included in the composition. These soaps, C ₉ -C ₂₀ linear alkylbenzene sulfonates, C ₈ -C ₂₂ primary or secondary alkane sulfonates, C ₈ -C ₂₄ olefinsulfonates, pyrolyzed product of alkaline earth metal citrates A sulfonated polycarboxylic acid produced by sulfonation of
For example, fatty acids such as those described in British Patent 1,082,179, alkyl glycerol sulfonates, fatty acyl glycerol sulfonates, paraffin sulfonates, alkyl phosphates, isothionates such as acylisothionates, N-acyl taurates, methyl taurides. Amides, alkylsuccinamates and sulfosuccinates, monoesters of sulfosuccinates (especially saturated and unsaturated C ₁₂ -C ₁₈ monoesters), diesters of sulfosuccinates (especially saturated and unsaturated C ₆ -C) ₁₄ diesters), N-acyl sarcosinates (nonionic non-sulfated compounds described below), branched primary alkyl sulphates, alkyl polyethoxycarboxylates, for example the formula RO (CH ₂ CH ₂ O) _K CH ₂ COO. ^- M ⁺ (in the formula,
R is a C ₈ -C ₂₂ alkyl, k is an integer of 0, M is one of a soluble salt-forming cation), and neutralized with esterified and sodium hydroxide with isethionic acid Mention may be made of salts of fatty acids. Also suitable are resin acids and hydrogenated resin acids, such as rosins, hydrogenated rosins, and resin acids present in or derived from tall oil and hydrogenated resin acids. Still other examples are given in "Surfactants and Detergents" (Schwartz, Perry and Birch, Volumes I and II). A variety of such surfactants are also generally available from U.S. Pat. No. 3,929,678 at column 23, line 58-.
It is disclosed in Column 29, Line 23.

One type of anionic surfactant preferred for use in the liquid detergent compositions of the present invention is an alkyl ester sulfonate, which is preferably of the structural formula

[0033]

[Chemical 4] Where R ³ is C ₈ -C ₂₀ hydrocarbyl, preferably alkyl or combinations thereof, and R ⁴ is C ₁
˜C ₆ hydrocarbyl, preferably alkyl or combinations thereof, where M is a soluble salt-forming cation) alkyl ester sulfonate surfactant. Suitable salts include metal salts such as sodium salts, potassium salts, lithium salts and the like. Preferably R ³
Is C ₁₀ -C ₁₆ alkyl and R ⁴ is methyl, ethyl or isopropyl. Methyl ester sulfonates in which R ³ is C ₁₄ -C ₁₆ alkyl are particularly preferred.

C _{9 to} C ₂₀ linear alkylbenzene sulfonates (preferably sodium salts) are preferred for use in the liquid detergent compositions of the present invention.

Preferably, the nonionic surfactant is C ₁₀
~ C ₂₀ alcohol and about 2 to about 2 per mole of alcohol
It is a condensate with 0 mole of ethylene oxide (" _E2-20 ethoxylated _C10-20 alcohol").

2. Nonionic Surfactants Suitable nonionic detergent surfactants are generally those disclosed in US Pat. No. 3,929,678 at column 13, line 14-16.
It is disclosed in column 6, line 6. Illustrative, non-limiting types of useful nonionic surfactants are described below.

1. Polyethylene oxide, polypropylene oxide and polybutylene oxide condensates of alkylphenols.

2. Condensates of aliphatic alcohols with about 1 to about 25 moles of ethylene oxide. The alkyl chain of the aliphatic alcohol can be straight or branched primary or secondary and generally has from about 8 to about 22 carbon atoms.

3. A condensate of ethylene oxide with a hydrophobic base produced by the condensation of propylene oxide and propylene glycol.

4. A condensate of ethylene oxide with the product resulting from the reaction of propylene oxide with ethylenediamine.

5. Semipolar nonionic surfactants are a special category of nonionic surfactants that include one alkyl moiety having from about 10 to about 18 carbon atoms and an alkyl group and hydroxyalkyl having from about 1 to about 3 carbon atoms. A water-soluble amine oxide containing two moieties selected from the group consisting of groups; alkyl moieties of about 10 to about 18 carbon atoms
And a water-soluble phosphine oxide containing two moieties selected from the group consisting of alkyl groups having about 1 to about 3 carbon atoms and hydroxyalkyl groups; and one alkyl moiety having about 10 to about 18 carbon atoms and about 1 carbon atoms. Water-soluble sulfoxides containing one moiety selected from the group consisting of 1 to about 3 alkyl and hydroxyalkyl moieties are included.

6. Hydrophobic groups of about 6 to about 30 carbon atoms, preferably about 10 to about 16 carbon atoms and about 1.3 to about 10 carbon atoms.
A polysaccharide containing about 1, preferably about 1.3 to about 3, and most preferably about 1.3 to about 2.7 sugar units (eg,
Polyglycoside) U.S. Pat. No. 4,56 having hydrophilic groups
Alkyl polysaccharides disclosed in 5,647.

7. formula

[0044]

[Chemical 5] [In the formula, R ⁶ has about 7 to about 21 carbon atoms (preferably about 9 to
About 17) alkyl group, each R ⁷ is hydrogen, C ₁ -C
₄ alkyl, C ₁ -C ₄ hydroxyalkyl, and-
A fatty acid amide surfactant having (C ₂ H ₄ O) _X H, wherein x is selected from the group consisting of about 1 to about 3. Polyhydroxy fatty acid amide surfactant component has the structural formula

[0045]

[Chemical 6] [Wherein R ¹ is C ₁ -C ₄ hydrocarbyl, 2-hydroxyethyl, 2-hydroxypropyl, or a mixture thereof, preferably C ₁ -C ₄ alkyl, more preferably C ₁ or C ₂ alkyl, most preferably Is C ₁ alkyl (ie methyl); R ² is C ₅ -C ₃₁ hydrocarbyl, preferably linear C ₇ -C ₁₉ alkyl or alkenyl, more preferably linear C ₉ -C ₁₇ alkyl or alkenyl, most preferably Preferred are linear C ₁₁ -C ₁₅ alkyl or alkenyl, or mixtures thereof; Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain having at least 3 hydroxyls directly linked to the chain or an alkoxylated derivative thereof ( Preferably, it is ethoxylated or propoxylated). Z will preferably be derived from a reducing sugar in a reductive amination reaction; more preferably Z will be glycityl. Suitable reducing sugars include glucose, fructose, maltose, lactose, galactose,
Mannose, and xylose. Z is preferably _{-CH 2 - (CHOH) n -CH} 2 OH, -C
H (CH ₂ OH)-(CHOH) _n-1 -CH ₂ OH,-
_{CH 2 - (CHOH) 2 (} CHOR ') (CHOH) -
CH ₂ OH, and their alkoxylated derivatives, where n is an integer from 3 to 5 and R ′ is H or a cyclic or aliphatic monosaccharide, will be selected. glycityls wherein n is 4, particularly -CH ₂ - (CHO
H) ₄ —CH ₂ OH is most preferred.

C. The pH-jump solids, substantially water-insoluble peroxyacids are more stable at acidic pH, while the cleaning and bleaching effectiveness of liquid detergents in wash liquors is better at alkaline pH. Therefore, the incorporation of peroxyacid bleach into liquid detergents, especially heavy duty liquids, was considered impractical.
Achieving these different pH requirements in the product and in the wash liquor is to maintain the product pH at about 3 to about 6 and to achieve a pH of about 7 to about 10 in the wash liquor (ie, when diluted). This is accomplished by using a jump (ie coordination) system.

The composition has a pH in the composition of about 3 to about 6, preferably about 3.5 to about 5, most preferably about 4 to about 4.
PH jump system (about 2 to about 40% by weight of the composition, preferably about 5 to about 5 to about 10, preferably about 7.5 to about 9 in dilute solution upon dilution of the composition. ~ About 3
0% by weight, most preferably about 10 to about 25% by weight).

1. Borate / Polyol pH Jump System Preferably, the composition of the present invention comprises (1) a borate and (2) a polyol (wherein the polyol forms a complex with the borate when the composition is in concentrated form to bring the pH of the composition to about pH. 3-6
Is a cis-1,2-polyol, which can be reduced to a value of 7 and the complex dissociates in a dilute solution to liberate the borate when the composition is diluted to bring the pH in the solution to a value of about 7-9. Can be increased and the weight ratio of polyol to borate is from 1: 1 to 10: 1), about 2 to about 40% by weight of the composition, preferably about 5 to about 30% by weight, Most preferably about 10 to about 25% by weight).

Most preferably, the composition comprises from about 1% to about 20% by weight of the composition, preferably from about 2% to about 10%.
Boron compounds such as borax (preferred), boron oxide, sodium orthoborate, sodium pyroborate: and about 1 to about 20% by weight of the composition, preferably about 5 to about 1.
It contains 5% by weight of sorbitol, dulcitol, xylitol, fructose, arabitol, mannitol, galactitol, catechol, pinacol, glucose, polyols such as polyhydroxy fatty acid amides. Preferred polyols for use herein are sorbitol, xylitol and dulcitol. The most preferred composition comprises about 4 to about 6% by weight of the composition of borax and about 10 to about 15% by weight of the composition of sorbitol.

Preferably, the polyol is dissolved in a portion of the water to be added to the formulation and then the salt or electrolyte in the formulation is added to this mixture. Finally, the boron compound
Mix in this premix. This clear pH jump solution is added to the rest of the formulation after the surfactant.

It is believed that the mechanism of action of this borate-polyol system is the formation of acidic borate-polyol complex in concentrated solution. Upon dilution, the complex dissociates and produces borate ions with a buffer pH of about 9.

2. Other pH Jump Systems In addition to borate / polyol, other pH jump systems may be useful herein. These may include insoluble alkaline salts in the product that dissolve in the wash liquor due to their more alkaline pH. These may include sodium carbonate, sodium bicarbonate, sodium silicate, sodium pyrophosphate and sodium orthophosphate.

D. Xanthan polysaccharide The composition of the present invention comprises from about 0.05 to about 2% by weight of the composition,
Preferably about 0.1 to about 1% by weight, most preferably about 0.1 to about 0.15% by weight of agar or xanthan polysaccharide (also called xanthan gum). Xanthan gum is produced by fermentation and extraction of the naturally occurring plant bacterium, Xanthomonas campestrias.

E. Preferred compositions for the second fatty acid high nonionic surfactant composition are from about 0.5 to about 3.5% by weight of the composition, preferably from about 1 to about 3%, most preferably about 1. 5-2.5
Wt% of C _{10 to 16} fatty acids, preferably comprising a C _{10 to 12} fatty acids. Lauric acid, myristic acid, palmitic acid, and stearic acid are preferred. Lauric acid is most preferred. These small amounts of fatty acids are included for product phase stability.

F. Other Parameters The aqueous detergent composition of the present invention does not include a stability enhancing polymer which is a copolymer of a hydrophobic monomer and a hydrophilic monomer. The second type of composition (high nonionic surfactant) preferably does not include such a copolymer. Stability enhancing polymers generally do not need to be compounded here.

The following are preferably not included in the composition: enzyme, effective amounts of detersive builders, urea, and glycerol. An effective amount of detersive builder is preferably greater than about 4% and less than about 30% by weight of the composition (excluding the low fatty acid content mentioned above).

The composition preferably has a viscosity of about 100 at 20 ° C. as measured on an RVT Brookfield viscometer using a No. 3 spindle and a setting of 100 rpm.
To about 3000, more preferably about 300 to about 1000,
Most preferably about 400 to about 900 centipoise (cps)
Have. This viscosity is desirable for convenient dosing from the container by the liquid detergent user.

G. Optional Ingredients The ingredients of the present invention should be combined in such a way that they will disperse or dissolve uniformly in the composition and do not interfere with their action. The preferred order of addition is as follows: surfactant, lauric acid, pH jump, electrolyte,
Chelating agents, peroxy acids, xanthan gum, polyacrylates, brighteners, polyvinylpyrrolidone and water (balance).

Optional preferred ingredients include polyvinylpyrrolidone (preferred) and / or polyvinyl alcohol from about 0.5 to about 5% by weight of the composition, preferably 1 to 2%. PVP, including substituted and unsubstituted vinylpyrrolidone polymerization products, and PVA are:
Molecular weight of about 4,000 to about 200,000, preferably about 5,000 to about 100,000, most preferably 10,
000 to 30,000. Different molecular weight PVP
A combination of and / or PVA can also be used.

Another optional preferred ingredient is about 0.05 to about 2% by weight of the composition, preferably about 0.1 to 1% by weight.
Is a stable stilbene optical brightener ("FWA"). It preferably has the following structural formula

[0061]

[Chemical 7] Where R ₁ is hydrogen, halogen, alkyl, alkoxy or phenyl, R ₂ is hydrogen or alkyl, M is hydrogen, an alkali metal or ammonium ion, n is 0-2, Is at least one S
Must contain an O ₃ M group, m is 1-2,
When m is 1, the substituent on the bond carbon is hydrogen)
Have.

Stilbene FW suitable for use herein
A is US Pat. No. 4,30, if it is bleach-stable.
9,316 and 4,298,490, and US Pat. No. 5,035,825.

The most preferred stilbene FWA for use herein because of its bleach stability is Tinopal (Tinop).
al ^R ) CBS-X, which is benzenesulfonic acid-
It is a disodium salt of 2,2 '-((1,1'-biphenyl) -4,4'-diyldi-2,1-ethenediyl) bis- (CA index name). Chino Pearl ^R CBS
The formula for -X is as follows.

[0064]

[Chemical 8] Sufficient sodium hydroxide (0.4N) is added just before water balancing (usually 2-5% by weight) to bring the pH of the composition at 20 ° C to a preferred pH of 4.5.

Sodium xylene sulfonate, potassium xylene sulfonate, sodium toluene sulfonate,
Hydrotropes such as potassium toluene sulphonate, sodium cumene sulphonate, potassium cumene sulphonate, and mixtures thereof and related compounds (such as those disclosed in US Pat. No. 3,915,903).
Can be utilized in the compositions of the present invention. They are about 0.5
May be present in an amount of from about 10% by weight, preferably from about 1 to about 5% by weight.

An example of a chelating agent suitable for use herein is ethylenediamine tetraacetate (EDT
A), diethylenetriamine pentaacetate (DTP
A) and other carboxylates; sodium acid pyrophosphate (SAPP), tetrasodium pyrophosphate (TSP)
P), polyphosphates such as sodium tripolyphosphate (STPP); ethyl hydroxy diphosphonate [Dequest (Dequest ^R) 2010 (1-hydroxyethylidene) bisphosphonic acid], other sequestering agents sold under Dequest ^R tradename And a combination of the above. Other sequestering agents for use herein are 2,6-pyridinedicarboxylic acid (dipicolinic acid), picolinic acid, and 8-hydroxyquinoline, and combinations thereof. Ethyl hydroxydiphosphonate and dipicolinic acid (alone or in combination) from about 0.05 to about 0.5% are the preferred chelating agents.

The composition may additionally contain magnesium sulphate which is commercially available in the form of the heptahydrate (if anhydrous magnesium sulphate is used, said amount should be adjusted accordingly). . The composition may further contain sodium or potassium sulfate.

The present invention comprises a fabric, by weight of the composition, of: (a) a solid, substantially water-insoluble organic peroxy acid of from about 1 to about 1;
About 30%; (b) about 5 to about 50% detergent surfactant; (c) produces a pH of about 3 to about 6 in the composition and about 7 to about 10 in dilute solution when the composition is diluted. An effective amount of an aqueous liquid detergent composition comprising about 2 to about 40% of the resulting pH jump system; and (d) about 0.05 to about 2% of agar or xanthan polysaccharide (wherein the detergent composition is hydrophobic monomer and hydrophilic). Further provided is a method for cleaning and bleaching a fabric in a wash liquor by contacting it with a stability-enhancing polymer that is a copolymer with a monomer).

The fabric may also be coated with (a) a solid, substantially water-insoluble organic peroxyacid in an amount of about 1 to about 1% by weight of the composition.
About 30%; (b) about 10 to about 40% _C8-20 alcohol ethoxylated with an average of about 2 to about 20 moles of ethylene oxide per mole of alcohol; (c) bleach compatible anionic surfactant. 0 to about 10%;
And (d) about 2 to about 40% of a pH jump system that results in a pH of about 3 to about 6 in the composition and about 7 to about 10 in dilute solution upon dilution of the composition; (e) agar or xanthan. About 0.05 to about 2% polysaccharides;
And (f) a method for cleaning and bleaching fabrics in a wash liquor by contacting with an effective amount of an aqueous liquid detergent composition comprising about 0.5 to about 3% _C10-14 fatty acids.

The following example illustrates the composition of the present invention.
All parts, percentages and ratios used herein are by weight unless otherwise noted.

Example I The composition of the present invention is as follows. Ingredient Active ingredient% C _12-15 Alkyl ethoxylate (E9) 5.2 C _12-13 Linear alkylbenzene sulfonic acid 12.1 Monononylamide peroxyadipic acid 1.6 Ethylhydroxydiphosphonate 0.2 Magnesium sulfate 7 hydrate 2.25 Sodium sulfate 2.25 Sorbitol 10.5 Borax 3.8 Xanthan gum 0.10 Sodium polyacrylate (molecular weight 10,000) 0.15 Optical brightener (“FWA”) 0.30 Hydroxylation Sodium (4N) pH 4.5 Total water balance 100 Viscosity: 800 centipoise (cps) fluidity pH jump: 4.38 (product); 8.00 (washing solution) Method for preparing the composition containing peroxy acid bleach Is
It is as follows.

1. Xanthan gum is dissolved in enough water to make a 1% solution. 2. The pH jump premix is prepared by dissolving sorbitol and borax in an equal volume of water. If the electrolytes are in the composition, they too can be dissolved in the pH jump premix. 3. Add the composition to a suitable sized beaker (typically 2
Prepare in a liter beaker). First, a beaker is charged with linear alkylbenzene sulfonic acid, alkyl ethoxylate and, if present, lauric acid, mixed and dissolved. 4. Add the pH jump premix to the stirred surfactant mix. 5. Add the chelating agent under stirring. 6. The desired amount of solid peroxy acid (eg NAPA
Add A) and disperse. 7. Add the xanthan gum solution. 8. Then sodium polyacrylate is added. 9. Then, if present, optical brightener and PV
Add P. 10. The resulting mix is homogenized with a homogenizer at low speed for about 1 minute. 11. The pH of the composition is adjusted with 4N sodium hydroxide solution.
Adjust to 5.

The product obtained is a fluid creamy suspension. The jumping ability of the composition is checked by diluting 1.5 g of the composition into 1,000 g of water.

Other peroxyacids can be used in the formulations in place of monononylamide peroxyadipic acid, for example 1,12-diperoxidedecanedioic acid or sulfoneperoxy acids or phthaloylaminoperoxycaproic acid. Agar polysaccharide can be used instead of xanthan polysaccharide. Other detergent surfactants can be used in place of those mentioned above. Water can replace magnesium sulfate heptahydrate and sodium sulfate in the formulation.

Example II A composition of the present invention containing 1,12-diperoxidedecanedioic acid as a peroxy acid is as follows.
The method of preparation is as described in Example I. Ingredient Active ingredient% C _12-13 Alkyl ethoxylate (E6.5) 12.1 C ₁₂ Linear alkylbenzene sulfonic acid 5.2 1,12-diperoxide Decanedioic acid 2 Dipicolinic acid 0.3 Magnesium sulfate heptahydrate 6.8 Sodium sulphate 5.38 Sorbitol 10.6 Borax 2.4 Lauric acid 2.5 Xanthan gum 0.12 Sodium polyacrylate (molecular weight 10,000) 0.1 FWA 0.1 Polyvinylpyrrolidone (molecular weight 10, 000) 1.0 Sodium hydroxide (4N) 2.0 Water balance 100 Viscosity: 430 centipoise pH jump: 4.5 (product) to 7.78 (washing solution) In the above formulation, 1,12-diperoxide decane Instead of dionic acid, other peroxy acids such as monononylamide peroxyadipic acid or Sulfonic peroxy acid or phthaloyl amino peroxy caproic acid can be used. Agar polysaccharide can be used instead of xanthan gum. Other detergent surfactants can be used in place of those mentioned above. Water can replace magnesium sulfate heptahydrate and sodium sulfate in the formulation.

Example III A composition of the present invention (high nonionic surfactant) containing 1,12-diperoxidedecanedioic acid as a peroxy acid is as follows. Ingredient Active ingredient% C _12-13 Alkyl ethoxylate (E6.5) 15 Linear alkylbenzene sulfonic acid 5.2 1,12-Diperoxide decanedionate 2 Dipicolinic acid 0.3 Magnesium sulphate heptahydrate 4.2 Sorbitol 14.1 Borax 5.1 Lauric acid 2.0 Xanthan gum 0.12 Sodium polyacrylate 0.25 FWA 0.20 Polyvinylpyrrolidone (molecular weight 4,500) 1.0 Sodium hydroxide (4N) To pH 4.5 Water balance 100 Viscosity: 660 centipoise pH jump: 4.5 (product) to 7.85 (wash solution) In the above formulation, instead of 1,12-diperoxide decanedionate, another peroxy acid such as monononyl. Amido peroxyadipic acid or sulfone peroxy acid or phthaloylaminope The hydroxycaproic acid can be used. Agar polysaccharide can be used instead of xanthan gum. Water can replace magnesium sulfate heptahydrate and sodium sulfate in the formulation.

Example IV The composition of the present invention (high nonionic surfactant) is as follows. The method of preparation is as described in Example I. Ingredient Active ingredient% C _12-15 Alkyl ethoxylate (E9) 15 C ₁₂ Linear alkylbenzene sulfonic acid 6.4 Monononylamide peroxyadipic acid 2 Ethyl hydroxydiphosphonate 0.2 Magnesium sulphate heptahydrate 6.0 Sorbitol 20 Borax 5.0 Laurate 2.0 Xanthan gum 0.15 Sodium polyacrylate (molecular weight 4,500) 0.20 FWA 0.20 Sodium hydroxide (4N) To pH 4.5 Water balance 100 Viscosity: 910 centipoise (Cps) pH jump: 4.5 (product) to 7.95 (wash solution)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display part // (C11D 3/60 3:39 3:04 3:20 3:22 3: 382) (72 ) Inventor Kathleen, Brenner, Hunter United States Kentucky, Vila, Hills, Rogers, Road, 855

Claims (20)

[Claims] 1. About 1 to about 1) a solid, substantially water-insoluble organic peroxy acid, based on the weight of the composition.
About 30%; (b) about 10 to about 40% _C8-20 alcohol ethoxylated with an average of about 2 to about 20 moles of ethylene oxide per mole of alcohol; (c) bleach compatible anionic surfactant. 0 to about 10%;
And (d) a pH jump system of about 2 to about 40% that produces a pH of about 3 to about 6 in the composition and about 7 to about 10 in dilute solution upon dilution of the composition; (e) agar or xanthan. About 0.05 to about 2% polysaccharides;
And (f) a stable flowable aqueous liquid detergent composition, characterized in that it comprises from about 0.5 to about 3% of C _10-14 fatty acids. 2. Containing about 0.1% to about 2% xanthan polysaccharide,
A stable, flowable, aqueous liquid detergent composition according to claim 1. 3. Nonylamino-4-oxoperoxybutyric acid; 6-nonylamino-6-oxoperoxyhexanoic acid; 1,12-diperoxidedecanedioic acid; heptylsulfonylperpropionic acid; decylsulfonylperpropionic acid; heptylsulfonyl. Containing from about 1% to about 20% of a solid, substantially water-insoluble organic peroxy acid selected from the group consisting of perbutyric acid, octylsulfonylperbutyric acid, nonylsulfonylperbutyric acid, and decylsulfonylperbutyric acid; and phthaloylaminoperoxycaproic acid. , Claim 2
A stable, fluid aqueous liquid detergent composition as described in 1. 4. An average of about 2 to about 20 per mole of alcohol.
_C8-20 alcohol ethoxylated with moles of ethylene oxide about 10 to about 40%, preferably about 12 to about 30.
%, Most preferably about 15 to about 20%, and about 0 to about 10% bleach compatible anionic surfactant. A stable flowable aqueous liquid detergent composition according to claim 2. 5. A stable flowable aqueous liquid detergent composition according to claim 4 which comprises from about 30 to about 70% distilled deionized water, based on the weight of the composition. 6. A pH of about 3.5 to about 5 is produced in the composition and a pH of about 7.5 in dilute solution upon dilution of the composition.
A stable flowable aqueous liquid detergent composition according to claim 5 comprising from about 10 to about 25% pH jump system yielding about 9. 7. A stable flowable aqueous liquid detergent composition according to claim 5 comprising about 1.5 to about 5% monononanoylamide peroxyadipic acid or 1,12-diperoxide decanedioic acid. 8. A stable flowable aqueous liquid detergent composition according to claim 2 comprising from about 0.1 to about 0.5% xanthan polysaccharide. 9. A borate (1) and a polyol (2), wherein the polyol forms a complex with the borate when the composition is in concentrated form to reduce the pH of the composition to a value of about 3-6. Is a cis-1,2-polyol that is capable of and the complex can dissociate in a dilute solution upon release of the composition to liberate the borate and increase the pH in the solution to a value of about 7-10. The weight ratio of polyol to borate is 1: 1.
From about 10: 1) to about 40 to about 40
9. The stable flowable aqueous liquid detergent composition of claim 8 comprising%. 10. The stable flowable aqueous liquid detergent composition of claim 8 comprising about 1.5 to about 5% monononanoylamide peroxyadipic acid. 11. A borate and (2) a polyol (wherein the polyol forms a complex with the borate when the composition is in a concentrated form to reduce the pH of the composition to a value of about 3-6). Is a cis-1,2-polyol that is capable of and the complex can dissociate in a dilute solution upon release of the composition to liberate the borate and increase the pH in the solution to a value of about 7-10. The weight ratio of polyol to borate is 1: 1.
To about 10: 1) to about 5 to about 30 pH jump system
11. The stable flowable aqueous liquid detergent composition of claim 10, comprising%. 12. A stable flowable aqueous liquid detergent composition according to claim 11 comprising from about 40% to about 60% distilled deionized water. 13. No. 3 spindle and set value 100 rp
A stable flowable aqueous liquid detergent composition according to claim 12 having a viscosity of about 400 to about 900 cps at 20 ° C as measured on a RVT Brookfield viscometer using m. 14. About 1 to about 20% by weight of the composition,
Boron compound selected from the group consisting of borax, boron oxide, sodium orthoborate and sodium pyroborate: and about 1 to about 20% of sorbitol, dulcitol, xylitol, arabitol, mannitol, fructose, galactitol, catechol, pinacol, 14. The stable, flowing aqueous liquid detergent composition according to claim 13, comprising a polyol selected from the group consisting of glucose and polyhydroxy fatty acid amide. 15. From about 0.5 to about 3.5 by weight of the composition.
_15. A stable, flowable, aqueous liquid detergent composition according to claim 14 comprising% _C10-16 fatty acids. 16. A stable flowable aqueous liquid detergent composition according to claim 15 comprising about 4 to about 6% borax and about 10 to about 15% sorbitol, by weight of the composition. 17. An ethyl hydroxydiphosphonate of about 0.
20. The stable, flowable, aqueous liquid detergent composition of claim 16, comprising 0. 05 to about 0.5%. 18. The stable fluid aqueous liquid detergent composition according to claim 5, which is free of a stability-enhancing polymer which is a copolymer of a hydrophobic monomer and a hydrophilic monomer. 19. The stable flowable aqueous liquid detergent composition of claim 18, wherein the ratio of ethoxylated nonionic surfactant to anionic surfactant is from about 1: 1 to about 30: 1. 20. About 1 to about 1) a solid, substantially water-insoluble organic peroxy acid, based on the weight of the composition.
About 30%; (b) about 10 to about 40% _C8-20 alcohol ethoxylated with an average of about 2 to about 20 moles of ethylene oxide per mole of alcohol; (c) bleach compatible anionic surfactant. 0 to about 10%;
And (d) about 2 to about 40% of a pH jump system that results in a pH of about 3 to about 6 in the composition and about 7 to about 10 in dilute solution upon dilution of the composition; (e) agar or xanthan. About 0.05 to about 2% polysaccharides;
And (f) a method of cleaning and bleaching a fabric in a wash liquor by contacting the fabric with an effective amount of an aqueous liquid detergent composition comprising about 0.5 to about 3% _C10-14 fatty acid.