JPS6197396A - Softening and antistatic liquid 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 Industrial Application: The present invention relates to liquid detergent and softening compositions and methods for cleaning and softening textiles during the wash cycle of a laundry operation. More particularly, the present invention relates to a softening antistatic composition adapted for use in the wash cycle of a laundry operation, the composition comprising a water-dispersible monohigher alkyl cationic quaternary Includes ammonium compound softeners, linear alkyl aromatic sulfonates, and nonionic surfactants.

BACKGROUND OF THE INVENTION Compositions useful in treating textiles to improve their softness and tactile characteristics are known in the art.

When used in household laundry, fabric softeners typically include:
It is added to the rinse water during the rinse cycle with a duration of only about 2 to 5 minutes. Therefore, consumers are required to monitor their laundry operations or take other precautions to add fabric softener at the appropriate time. This requires the consumer to return to the washer either just before or at the beginning of the rinse cycle of the wash operation.

This is clearly a hassle for consumers.

In addition, special care must be taken to use appropriate amounts of fabric softeners to avoid overuse, which may cause the fabric to become water repellent by depositing a greasy film on the fabric surface. At the same time, it imparts a certain degree of yellowness to the fabric.

A solution to the above problem is to use fabric softeners that are compatible with common laundry detergents, such that the softener is combined with the detergent in the same package for use during the wash cycle of the laundry operation. It is known to do. Such wash cycled fabric softening compositions are disclosed in U.S. Pat.
03,480. and many other patents. Generally, these wash cycle fabric softening compositions include a cationic quaternary ammonium fabric softener and additional ingredients that make the softening compound compatible with common laundry detergents.

However, cationic softening compounds added to the wash cycle, either as ingredients in detergent/softener compositions or as Forash cycle softeners, interfere with detergent whitening activity as well as cleaning efficiency. It is also known that... As a result, detergents can
There has been a need to compensate to some extent for this disturbance in softener compositions. However, little improvement has been made in wash cycle softening compositions using detergents that are predominantly anionic.

There are numerous disclosures in the art regarding detergent compositions comprising cationic softeners, including quaternary ammonium compound softeners, and nonionic surfactant compounds.

A typical example of this technique is U.S. Patent No. 4,264,
457.4, 239, 659.4.259, 217.4
,222,905.3,951,879.3.360,
470.3, 351, 483.3, 644, 203, etc. Additionally, U.S. Patent No. 3,537,993
゜3.583,912.3,983,079.4,20
3,872, and 4,264,479 specifically include other ionic surfactants or denaturants, such as nonionic surfactants, cationic offal softeners, and amphoteric surfactants;
It discloses combinations such as

Although many of these conventional formulations provide satisfactory cleaning and/or softening under different conditions, they still do not provide adequate softening properties - e.g. The company is having trouble because it does not provide drugs.

U.S. Pat. No. 3,920,565 discloses a cationic fabric softener containing from 2 to 15 carbon atoms and from 0.5 to 4.0% carbon atoms containing 1 carbon atom.
Liquid rinse cycle fabric softener compositions are disclosed that include 6 to 22 fatty acid alkali metal salts (soaps) and optionally up to 2% nonionic emulsifier, with the balance being water. Di-higher alkyldimethylammonium chloride is the preferred cationic agent, although mono-higher alkyl quaternary salts may also be mentioned.

It is generally known in the art that monohigher alkyl quaternary ammonium compounds, such as stearyltrimethylammonium chloride, are less effective softeners than dihigher alkyl cationic quaternary softeners because they are relatively water soluble. (See, e.g., U.S. Pat. No. 4,236,965)
It has therefore been proposed for use as a rinse cycle fabric softener, for example, with anionic detergents such as fatty acid soaps which can be used in combination to form softening complexes. Ta. The inventors have previously disclosed that a stable fabric softening composition with improved dispersibility in cold water when used in a rinse cycle combines a cationic quaternary ammonium compound as the sole softening agent. With anionic sulfonate,
It has been discovered that a weight ratio of cationic agent to anionic agent is provided at about 80=1 to 3=1 (see US Pat. No. 3,997,453). This patent discloses both mono-higher alkyl and di-higher alkyl cationic quaternary softening compounds and also discloses alkylbenzene sulfonates as anionic compounds. According to this patent, the addition of a small amount of anionic sulfonate to an excess water dispersion of a quaternary fabric softener reduces the viscosity of the dispersion and makes it easier to run in cold water (i.e., in the rinse cycle of an automatic washing machine). Produces a homogeneous liquid that is dispersive.

However, as mentioned above, it has long been recognized that it is highly desirable for convenience to use fabric softeners in fabric softening compositions at the same time as detergents in the wash cycle of a washing machine.

U.S. Pat. No. 4,222,905 (Kottukrell Jr.) discloses laundry detergent compositions which can be in liquid form and which include certain nonionic surfactants and tallowalkyltrimethylammonium chloride. and cationic surfactants, including monohigher alkyl quaternary ammonium compounds, such as, in a weight ratio of nonionic agent to cationic agent of from 5:1 to about 1:1.

This patent states that the amount of anion-forming material should be minimized, preferably eliminated altogether, but in any case, dissociation constants below 1 It teaches that anionic materials with a cationic surfactant should be included only in amounts up to 10 parts by weight of the cationic surfactant.

The weight ratio of nonionic agent to cationic agent is about 1:1 to 4.
0 = 1, the nonionic surfactant is limited to a type with a hydrophilic-hydrophobic balance (HLB) of about 5 to about 17, and the cationic surfactant is limited to a type of monohigher alkyl quaternary ammonium compound. Mixed nonionic/cationic surfactant compositions in which the higher alkyl is limited and has about 20 to about 30 carbon atoms are disclosed by Murphy in US Pat. No. 4,239,659.

The patent provides a general disclosure that other adjunct ingredients may be included at usage levels conventionally established in the art industry, stating that the levels are from about 0 to about 40%. . An extensive list of auxiliary ingredients includes semipolar nonionic, anionic, and amphoteric cosurfactants, virgoos,
It is given to contain dyes, fillers, enzymes, bleaches and many other things. There are no examples of using anionic surfactants, and no disclosure of anionic surfactants; however, the co-surfactant must be compatible with the nonionic and cationic agents, and The anionic agent may be any of the anionic agents disclosed in U.S. Pat. No. 4,259,217.

This latter Murphy patent has a fiLB of about 5 to about 17.
The nonionic to cationic weight ratio of the nonionic surfactant and the cationic surfactant, including the monohigher alkyl quaternary ammonium compound, is from 5.1:1 to about too much.
: 1 is disclosed. According to this patent, detergent compositions can contain up to about 50%, preferably from about 1 to about 15%, of anionic and/or zwitterionic surfactants. Anionic surfactants include, among others, linear alkylbenzene sulfonates. Example X■ in column 40 of this patent describes a heavy liquid laundry detergent composition with the following formulation: Sodium sulfate of C alcohol ethoxylated with 3 moles of ethylene oxide 5.06.5
20.0 coconut alkyltrimethylammonium chloride
3.5 glycine
&0 toluene sulfone j
1) LIU A 10.0 Water and Minor Ingredients 100 The following liquid anti-agent composition is shown in Example XVII (column 41): Triethanolamine salt of linear alkylbenzenesulfonic acid 20 .0C8-
18Furkylhydroxyethylmethylammonium chloride 1.5Ethanol
1O60 diethylenetriaminepentamethylphosphonic acid α3 citric acid
0.2 A 9=1 mixture of dimethylpolysiloxane and acrogel silicate emulsified in highly ethoxylated fatty acids (commercially available as DB31 from Dow Corning) 0.3 Alkyl of 16 to 22 longitudinal atoms Saturated fat with chains & 0.75 protease, 0.4 minor adjuvants and water, remaining from 100% by weight about 3-35% nonionic surfactant, about 3-30% by weight mono-higher alkyl quaternary A liquid laundry comprising an ammonium compound cationic surfactant and an anionic surfactant mixture comprising (a) a C4-010 alcohol sulfate and (b) a C12-022 alcohol ethoxylated ether sulfate or carboxylate salt. Detergent/softener compositions are disclosed in Beeks and Wysotsky U.S. Pat.
No. 264,457. The molar ratio of the total cationic surfactant to the total anionic surfactant is O, S
:1 to 10:1. According to the patentee, the selection and proportions of the two specific anionic surfactants to the exclusion of other known anionic surfactants are important for detergency, flexibility and antistatic properties. This is essential for maximum effectiveness.

Means for Solving the Problem: The inventors hereby demonstrate that the softening and antistatic performance of detergent compounds and cationic monohigher alkyl quaternary ammonium compound fabric softeners directly mimic cationic softeners. It has been discovered that significant enhancement is achieved by use in an approximately 1:1 complex with an anionic surfactant that is an alkyl aromatic sulfonate. Furthermore, this increase in unsoftened properties and antistatic performance comes at no cost and [
In most cases, whitening and cleaning are combined with significant improvement in performance.

It is based on this discovery that the present invention was completed.

[Accordingly, one object of the present invention is to improve the overall cleaning performance by improving the softening, whitening and antistatic performance of a liquid detergent composition containing a quaternary ammonium compound non-softening agent and a nonionic anti-agent compound. The goal is to improve without giving negative effects to the people.

Another object of the present invention is to formulate stable liquid detergent and fabric softener compositions using monohigher alkyl quaternary ammonium cationic fabric softeners together with nonionic surfactants as the main surfactant component. and that the composition is compatible with the fluorescent brightener.

These and other objects of the present invention, as will become apparent from the description below, are achieved by providing a liquid laundry detergent composition that is capable of washing soiled fabrics in an aqueous wash liquor; is a nonionic surfactant as the main surfactant, a monohigher alkyl quaternary ammonium compound cationic fabric softener, and a linear alkyl aromatic sulfonate in the same amount as the cationic fabric softener. including a surfactant and a liquid carrier. In a preferred embodiment, the detergent composition comprises at least one colorant and/or whitening agent, in particular dyes, bluing agents and brighteners, and mixtures thereof, and other optional detergent auxiliaries. .

Why are cationic/anionic unsoftened/antistatic systems compared to di-higher alkyl quaternary ammonium compounds cationic fabric softeners alone or in combination with anionic linear alkyl aromatic sulfonates? Although not wishing to be bound by any particular theory as to whether they provide enhanced softening, monohigher alkyl cationic red softeners are at least slightly water soluble and anionic. It forms a water-soluble complex with the surfactant, which is evenly and homogeneously and adhesively distributed over the laundry area, and the complex itself provides non-softening and antistatic properties. It is assumed that

The expected nonionic surfactant may generally be any nonionic agent known to be useful as a detergent for cleaning contaminated fabrics.

Suitable nonionic surfactants are commercially available and are derived from the condensation of alkylene oxides or equivalent reactants with reactive hydrogen hydrophobes. The hydrophobic organic compound may be aliphatic, aromatic or heterocyclic, with the first two types being preferred. Preferred types of hydrophobes are higher aliphatic alcohols and alkylphenols, with the exception of carboxylic acids, carboxamides,
Others such as mercaptans, sulfonamides, etc. can also be used. Ethylene oxide 9-condensates with higher alkylphenols or higher aliphatic alcohols represent a preferred class of nonionic compounds. Normally,
The hydrophobic moiety should contain at least about 6 carbon atoms, preferably at least about 8 carbon atoms, and may contain as many as about 50 or more carbons, with a preferred range being fatty acids. about 8 to 22 carbon atoms for group alcohols, especially 10 to 18 carbon atoms, and 12 to 2 carbon atoms for higher alkylphenols.
There are 0 pieces. The amount of alkylene oxide varies considerably depending on the hydrophobe, but as a general guideline and rule, from at least 3 moles of alkylene oxide per mole of hydrophobe to about 200 moles of alkylene oxide, preferably 1 mole of hydrophobe.
About 5 to 50 moles per mole of alkylene oxide provides desirable cleaning performance and compatibility with other ingredients.

A preferred type of nonionic surfactant is a surfactant with the formula %() where R is a primary or secondary alkyl chain of about 8 to 22 carbon atoms, and n is an average of 5 to 50. value, preferably from 5 to 20, especially from 6 to 13), or (wherein R' is a primary or secondary alkyl chain having from 4 to 12 carbon atoms and m is 5 to 50, preferably from 5 to 20, especially from 6 to 13), K
Therefore, it is expressed.

Preferred alcohols from which compounds of formula (II) are made include lauryl, myristyl, cetyl, stearyl, and oleyl, and mixtures thereof.

A particularly preferred value of R is C□. is C18, and C1□
to Cts alkyl and mixtures thereof are particularly preferred.

Preferred values for R' are from C6 to 0□2, with C8 and C3 being particularly preferred, including octyl, inoctyl, and nonyl.

A typical example of a nonionic compound of formula (1) is lauryl alcohol condensed with 5 or 7 or 11 moles of ethylene oxide. A representative example of a nonionic compound of formula (If) is inoctylphenol or nonylphenol condensed with 3 to 8 moles of ethylene oxide.

Other nonionic compounds that can be used include polyoxyalkylene esters of organic acids such as higher fatty acids, rosin acids, tall oil acids, acids from petroleum oxidation products, and the like. These esters usually contain about 10 to about 22 carbon atoms and about 3 to about 20 moles of ethylene oxide or its equivalent in the acid component.

Still other nonionic surfactants are alkylene oxide condensates with higher fatty acid amides.

The fatty acid group generally contains about 8 to about 22 carbon atoms, which, in a preferred example, is condensed with about 3 to about 30 moles of ethylene oxide.

The corresponding carboxamides and sulfonamides 9 may also be used as substantial equivalents.

The amount of nonionic agent is generally at least the minimum amount that provides adequate cleaning performance when added to the wash water. Generally, amounts ranging from about 1 to about 40%, preferably from about 4 to about 30%, and particularly preferably from about 10 to 30% can be used in the mold pan of the composition.

The second key ingredient in the formulation of the present invention is a cationic fabric softener. Fabric softeners are used to soften cloth or textiles, and the terms "softener" and "softener" refer to the texture, feel, and impression that a cloth or textile gives to the hands or body. and has both aesthetic and economic importance. The cationic fabric softener used in the present invention is a monohigher alkyl quaternary ammonium compound represented by the following formula: where Ro is a long chain aliphatic group having 16 to 22 longitudinal atoms; ,
The three R's are independently lower alkyl groups; is a water-soluble salt-forming anion such as The carbon chain of the aliphatic group having 16 to 22 carbon atoms, in particular 16 to 20 carbon atoms, may be straight-chain or branched and saturated or unsaturated. Lower alkyl groups have 1 to 4 carbon atoms and may include hydroxy groups. Preferably, the carbon chains are derived from long chain fatty acids such as those derived from beef tallow and soybean oil. Terms such as "disoya" and "citaro" as used herein refer to the source from which the 70-long aliphatic alkyl chain is derived. Mixtures of quaternary ammonium compound softeners may be used. Preferred ammonium salts are monohigher alkyltrimethylanthonium chlorides in which the alkyl group is derived from beef tallow, hydrogenated beef tallow, or stearic acid. Specific examples of quaternary ammonium softeners suitable for use in the present invention are as follows: Tallow) I
J methyl ammonium chloride, hydrogenated tallow-trimethyl ammonium chloride 9, trimethyl stearyl ammonium chloride 9, triethyl stearyl ammonium chloride 1, trimethylcetylammonium chloride, soya trimethyl ammonium chloride,
Stearyldimethylethylammonium chloride, tallow diisopropylmethylammonium chloride°
, their corresponding sulfates, methosulfates,
Including ethosulfate, bromide, and hydroxide salts, etc.

The amount of cationic carpet softener can generally range from about 1 to about 20%, preferably from about 4 to about 16%, and particularly preferably from about 5 to 10% by weight of the composition. .

The weight ratio of nonionic surfactant to cationic fabric softener is about 1=1 to 5:l, preferably about 1.1:l to 4
．． 5:1. Particularly preferably it can be in the range from about 1.1=1 to 4:l.

Examples of suitable anionic surfactants as the third essential component include water-soluble salts, such as about 8 to 26
and preferably from 10 to 22 carbon atoms. (The term alkyl includes the alkyl portion of higher acyl groups.) Preferred examples of straight chain alkyl aromatic sulfonates are those containing 10 to 16 carbon atoms in the straight chain alkyl group, such as straight chain higher alkyl benzene sulfones. sodium, potassium, and ammonium salts of acids, higher linear alkyltoluenesulfones rll, high R linear alkylphenolsulfonic acids, and higher linear alkylnaphthalenesulfonic acids. C8-016 alkyl, especially C1
0-014 alkyl, linear higher alkyl hensensulfonates such as C□2(n-dodecyl)alkylbenzenesulfonates are particularly preferred anionic surfactants. One preferred class of linear alkylbenzene sulfonates are those containing a high content of the 3-(or higher) phenyl isomer and a correspondingly lower content of the 2-(or lower) phenyl isomer, i.e. , the benzene ring is mostly attached in the 3-position or higher position (eg 4.5.6 or 7) of the alkyl group, and the content of isomers in which the benzene ring is attached in the 2- or 1-position is correspondingly low. Preferred materials falling within this category are shown in US Pat. No. 3,320,174.

The cationic softener/anionic surfactant mixture is surprisingly superior to the equivalent weight of di-higher alkyl quaternary ammonium compound alone or to the corresponding mixture of di-higher alkyl quaternary compound and alkylbenzene sulfonate. In comparison, it has been discovered that cleaning, softening and antistatic performance is improved.

Anionic surfactants may possibly form complexes with cationic softeners to provide unsoftened/unsoftened agents in detergent formulations without interfering with the cleaning performance of nonionic agents or without interfering with brighteners. The ratio of cationic to anionic agents is particularly critical as it enhances antistatic performance. A large excess of either component can interfere with overall performance. Thus, from about 1.3:1 to 1.3, preferably 1
．． 2:1 to 1:], 2, particularly preferably a ratio of 1.1:1 to 1:1.1, most preferably a ratio of about 1=1 provides improved cleaning and whitening performance as well as improved Provides softening and antistatic properties.

The total amount of cationic/anionic softener/antistatic agent mixture in the composition is not particularly critical and is generally about 8 to 30 inches by weight, preferably 10 inches, based on the total composition.
It is in the range of 20%.

Additionally, the total amount of cationic softener and anionic surfactant generally ranges from about 20 to 100 inches, preferably from 30 to 80 percent by weight, based on the nonionic surfactant. Moreover, within the amounts and ratios mentioned above, the cationic/anionic softener/antifluorescent mixture is compatible with nonionic surfactants, brighteners, and the like.

The solvent medium for the liquid detergent compositions of the present invention is an aqueous medium, which may be water alone or substantially water with additional solvent added for specific ingredients. Due to the availability of water and its lowest cost, it is preferred to use water as the main component present. Nevertheless, amounts of other solvents generally up to 20% of the total content, preferably up to 15%, may be used. Generally, such cosolvents are lower alkanols or lower diols or polyols, such as ethanol, isopro, e-ol, ethylene glycol, propylene glycol, glycerin, and the like. Etheric polyols such as diethylene glycol and those known as cellosolves can also be used.

In addition to co-solvents, it is also common to include hydrotropes in the formulation to maximize the compatibility of all the active ingredients and to make the liquid formulation more homogeneous and stable. preferred. Examples of suitable hydrotropes include alkali metal aryl sulfonates such as sodium benzenesulfonate, sodium toluenesulfonate, sodium xylenesulfonate, and the corresponding potassium salts.

The hydrotrope can be used in amounts up to about 15%, preferably up to 10%, by weight of the total composition.

Various selected compatibility aids may also be present in the liquid detergent composition to impart additional desired properties, either functional or aesthetic, to the composition. For example, enzymes;
bleaching agents; bleach activators and stabilizers; soil suspending agents or anti-redeposition agents such as polyvinyl alcohol, carboxymethylcellulose, human 90xypropylmethylcellulose; dyes, blue tints, pigments, fluorescent brighteners, such as Cotton, amide and polyester brighteners; preservatives such as methyl paracept or sodium benzoate; ultraviolet light absorbers; pH modifiers such as amines; pH buffers; and fragrances. The auxiliaries are of course selected to be compatible with the main components of the detergent formulation.

Of the above-mentioned auxiliaries, perhaps the most important for the functional effect are the fluorescent brighteners, since nowadays housewives want their washed clothes not only to be clean (but also bright in appearance). Fluorescent brighteners are direct (and selective) to the fabric being washed, and sometimes have relatively low solubility. Therefore, it is important to keep them in solution in liquid detergent compositions and, more importantly,
It must be immediately dispersed in the wash liquor to avoid producing laundry with visible glitter spots rather than a homogeneous glitter appearance. The selection of brighteners to obtain the best results is within the skill of the artist. It has been discovered that relatively small amounts of brightener should be used to avoid exceeding solubility limits. It has also been discovered that among these classes of substances, certain brighteners are particularly readily soluble and suitable for incorporation into these products. Fortunately, such preferred brighteners include both cotton brighteners and amide polyester brighteners, which are suitable for use in laundering cases involving both materials and synthetic materials. Among the commercial fluorescent brighteners used in the system of the present invention are Tinopal UNPC, Tinopal CBS
(Chipa Geigy), Arctic White CC (Hilton Davis) and the following 7 all whites from Verona: BKL.

BUP, BBC solution, BRV solution, DCRlJv-", DCBVF', EV IJ#71', DBS y
There are *, TSv, and ANR.

Other TL of fluorescent whitening agents that provide excellent whitening effect
These are components that do not have a sulfonate component. The preferred class a1 brightener for use in the present invention is 2-(4-styrylphenyl)-2H-1-phthol(1,2-d))
lyazole, 4,4'-bis(1°2,3-triazol-2-yl)-stilbene, 4,4'-bis(styryl)bisphenyl, and y-aminocoumarin.

Specific examples of these brighteners include 4-methyl-7-dinithylaminocoumarin, 1,2-bis(benzimidazole-
2-yl)ethylene, and 1,3-diphenyl-fragiline, and 2,5-bis(benzoxazole-2
-yl)-thiophene, 2-stylinuna 7) (1,2
-d]oxazole, and 2-(Styl is so4-i/')-2H-naf)(4,2-a)lJ7 sol.

The fluorescent brightener content of the liquid composition is usually from about 0.2% to about 3.0%, preferably from 0.25 to 27%. Such concentrations are soluble in the liquid detergents described;
Effective for significantly brightening washed fabrics.

It is preferable that the content of other auxiliary agents is kept below 5 by weight of the product. The use of such compounds in higher proportions can sometimes significantly change the properties of liquid detergents,
[Should be avoided.]

Although the detergent/softener compositions of the present invention are stable, clear, single phase liquids, compatible opacifiers can be added to impart a creamy appearance to the formulation.

This liquid composition is normally added to the wash water in automatic washing machines, either of the top-loading or front-loading type, and its concentration in the wash water is about 0.05 to 1.5%, usually 0.05%. It should be in the range of 1 to 1.2 inches. Generally, depending on the type of loom and the loading of the contaminated fabric, the amount of liquid composition to be added ranges from about 1/4 cup to about 11/4 cup, with a typical amount of about 1/2 cup (120ml).

The washing water used is fairly soft water or water of suitable hardness, and is generally used at elevated temperatures.

The compositions of this invention are also useful for laundering fabrics in very hard water and at low temperatures. For example, the hardness of water may range from 0 to 300 pI, calculated as calcium carbonate, and the wash temperature may be from 40'''F to 120'F. Washing may be done in an automatic washing machine; , followed by rinsing and centrifugation or other draining or squeezing cycles or operations. Of course, the detergent composition may also be used for manual laundry (in which case
It may sometimes be used at its highest concentration on certain stains on the laundry, or the laundry may be soaked in a highly concentrated detergent solution before washing.

The laundering process typically takes from 3 minutes to 1 hour, depending on the fabric being washed and the degree of soiling observed. washing and centrifugation,
It is preferable to immediately dry the laundry in an automatic dryer after the draining or squeezing operation is completed, although hang drying can also be used.

The detergent and fabric softener compositions of the present invention dissolve very easily in the wash water, whether it is hot or cold, and are highly effective at cleaning, softening, removing static electricity, and repelling fabrics and other laundry. Does not impart a water-based finish. The detergent may be used in either a top-loading or front-loading washing machine and may be desirably adjusted to the appropriate level of suds. The product is an attractive clear, stable liquid that maintains its activity and homogeneity even during long storage periods. In tests comparing the effectiveness of its use to the use of commercial liquid laundry detergents, it was rated very good.

This product can be made by simply mixing the various ingredients at room temperature with stirring to ensure their solubilization in the aqueous medium. The order of addition of each ingredient and the compounding temperature can be varied without adversely affecting the formation of the single phase clear liquid product of the present invention.

The liquid detergent/softener compositions of the present invention exhibit many desirable properties both in terms of physical properties and performance in use. Regarding its physical properties, the composition is pourable and free-flowing during manufacture and ripening. The composition exhibits storage stability with no noticeable precipitation when stored for many months at a normal room temperature of about 70'F.

As a result, the consumer can conveniently use it by adding small amounts to the laundry bath, ensuring that the detergent and fabric softener are present in a constant composition in each part. Although compatible auxiliary substances can be added to make the final product translucent or opaque as desired, a single-phase solution of the main chain components provides effective cleaning and softening power for each part. Promote stability and homogeneity of the resulting product. The liquid may be packaged in any container or packaging material such as metal, plastic or glass.

The following specific examples illustrate various embodiments of the invention. However, it should be understood that these examples are presented for illustrative purposes only and are not intended to be limiting in any way.

Example 1 The following liquid detergent formulation was made: Linear Dodecylbenzene Sulfonate 55 Neodol 25-7 25 25
Ethanol 1010 Tinopal UNPA O,60
, 6 Polar Brilliant Blue (1%) 11 Water
Remaining Remaining Using 172 cups of each of the above formulations A (inventive) and B (comparative) in a top-loading automatic washing machine at 120'F with wash water of 100 PP hardness, 2 A 6-bond load was cleaned, including two face cloths and a synthetic swatch (for electrostatic measurements). The following results were obtained: A-8-6,133,5 B-5-5,5412 1) 1 = zero flexibility, 10 = excellent flexibility 2) minus b
The value is high and the color is white. Approximately 0.5 units is a visible difference.

3) #j1. The lower the number, the better the antistatic properties. The number is 4
25% relative humidity (70°F) for fabrics (polyester, nylon, acetate, polyester/cotton)
is the sum of the electric current Fr (in kilovolts) at . The charge is generated by contact with a rotating CoolSwatch and measured with an electric field meter (Monroe Electronics Stat Arc Model 380B).

Example 2 A liquid detergent/softener composition is made by mixing together the following ingredients:
45.4 Tinopal UNPA Brightener 0 (Ciba Geigy) 0.5 Triethanolamine
1.7 baller brilliant blue 1%
0.5 fragrance 0
．． 3 100.0 Droxyethylnoamino)-2-triazin-2-yl)amine)-2,2'-stilbendisulfonic acid. Compare in clean road tests with commercially available liquid anti-softener formulations containing fabric softeners. I got the following results.

From the above results, it can be seen that the compositions of the present invention provide excellent performance in softening, whiteness, and antistatic properties.

Example 3 The following composition is made: Weight % Neodol 25-7 21 Adgen 471 6 (Active ingredient) Linear dodecylbenzenesulfonate 6 (Active ingredient) Tinopol U N P A O,5 Triethanolamine 1.7 Ethanol 5 Sodium xylene sulfonate 5 Polar Brilliant Blue (
1%) 0.5 perfume 0.3 water remainder This composition is a free-flowing, homogeneous, stable, clear liquid that provides excellent softness, antistatic properties, and whiteness.

Claims (1)

[Scope of Claims] 1. A liquid laundry detergent composition capable of washing and softening contaminated fabrics in an aqueous laundry solution, comprising (α) a nonionic surfactant as the main surfactant; ( b) A cationic quaternary ammonium compound fabric softener selected from the group consisting of compounds with the formula ▲ Numerical formulas, chemical formulas, tables, etc. (wherein R_1 is 16 to 2
(c) a cationic fabric softener (b); a long chain aliphatic group of 2 carbon atoms, each of the 3 R's independently being a lower alkyl group, and X being a salt-forming anion; about the same amount of an anionic surfactant, the activator being a linear C_8-C_2_6 alkyl aromatic sulfonate; and (d)
A composition comprising: a liquid carrier. 2. Nonionic surfactant (a) has formulas I and IIRO
(CH_2CH_2O)_nH(I) ▲Mathematical formulas, chemical formulas, tables, etc.▼(II) Selected from the group consisting of 22 alkyl chain, R' is a primary or secondary alkyl having 7 to 12 carbon atoms, and n and m each have 3 to 200 carbon atoms.
A composition according to claim 1, wherein the composition has a mean value of . 3. Anionic surfactant is linear C_1_0-C_1_
6-alkylbenzene sulfonate, linear C_1_0-C
_1_6 alkyltoluenesulfonate, linear C_1_
0-C_1_6 phenol sulfonate, and linear C
The composition of claim 1 selected from the group consisting of alkali metal salts and ammonium salts of _1_0-C_1_6 alkylnaphthalene sulfonates. 4. from about 1 to about 40% of the above nonionic surfactant (based on the weight of the active ingredient based on the total weight of the composition)
a) from about 1 to about 20% of the above cationic fabric softener (
b) from about 1 to about 20% of the above anionic surfactant (
A composition according to claim 1, consisting of c), and the remaining detergent aids and liquid carriers. 5, (a):(b) is about 1:1 to about 5:1, and (
5. The composition of claim 4, wherein the ratio b):(c) is from about 1.3:1 to about 1:1.3. 6. Stain suspending agent, redeposition prevention agent, fluorescent whitening agent, dye, pigment, bluing agent, enzyme, anticorrosion agent, pH adjuster, pH buffer,
Claim 1 further comprising at least one detergent aid selected from the group consisting of disinfectants, fungicides, preservatives, bleaches, bleach stabilizers, bleach activators, and fragrances. The composition described in. 7. The nonionic surfactant has an aliphatic alcohol of about 8 to 22 carbon atoms or about 12 to 20 carbon atoms ethoxylated with about 5 to 50 moles of ethylene oxide. higher alkylphenols; cationic fabric softeners include tallo-trimethylammonium chloride, hydrogenated tallo-trimethylammonium chloride, stearyltrimethylammonium chloride, stearyltriethylammonium chloride, cetyltrimethylammonium chloride, soyatrimethylammonium chloride, stearyldimethylethylammonium chloride, tallow-diisopropylmethylammonium chloride, and their corresponding sulfate, methosulfate, ethosulfate, bromide and hydroxide salts; and the liquid carrier is an aqueous medium containing up to 20% by weight of a lower alkanol, lower diol or polyol as a supplementary solvent. 8. (a) about 10 to 30% nonionic surfactant. (b) about 5 to 10% cationic fabric softener; (c)
about 5 to 10% anionic surfactant, and (d) the remainder detergent aids and aqueous liquid carrier, wherein the ratio of (a):(b) is 1.1:1 to 4. .5
:1, and the ratio of (b):(c) is 1.1:1 to 1.
1.1. 9. A method for cleaning and softening contaminated fabrics in an aqueous wash water, comprising washing the fabrics in an aqueous solution of the composition of claim 1.