FR2593516A1 - DETERGENT AND LIQUID SOFTENING COMPOSITION FOR FABRICS CONTAINING ALKYL GLYCOSIDE AND METHOD FOR SIMULTANEOUSLY CLEANING AND SOFTENING FABRICS - Google Patents

Abstract

A liquid detergent and softener composition is disclosed. The composition contains, as four essential ingredients, an alkyl glycoside, a quaternary ammonium softening compound, a nonionic surfactant and an anionic surfactant, in an aqueous vehicle. The invention also relates to a method for simultaneously cleaning and softening fabrics without the detergency and brightening performance being reduced, which consists in treating the fabrics with said composition during the washing cycle of a laundering operation. Field of application: detergents.

Description

The present invention relates to novel liquid compositions

detergents and fabric softeners

  to use in laundering fabrics, which include

  an alkyl glycoside in an amount effective to improve cleaning power and properties.

  softening in the presence of softening compounds

  quaternary ammonium and surfactants

anionic and nonionic.

  The use of many and various chemical substances, including compounds

  cationic quaternary ammonium compounds, as

  textiles are very well known in the art.

  It is also well known to use such substances for their softening effects during the laundering operation and in particular in the wash cycle of the laundering process. This last modality was necessary because the aforementioned quaternary compounds used up to now, being of mainly cationic nature, are not compatible with anionic detergents.

  which constitute one of the main types of deter-

  used in the wash cycle. In addition, cationic quaternary compounds are relatively

  inefficient in the presence of nonionic detergents.

  It is also well known that articles

  bleached tend to turn yellow or suffer an alteration

  when treated by the com-

above mentioned quaternary poses.

  Another disadvantage associated with the use of these cationic agents for bleaching tissues in their presence is that they interfere with the optical brightener deposit on the tissue, thus reducing the power

  optical brightening of a detergent composition

holding such an optical brightener.

  Another disadvantage of a more flexible

  anti-static agent of the cationic ammo-

  The quaternary solution is that it counteracts the cleaning properties of the detergent by reducing the detergent removal of soiling, resulting in less efficient washing. The presence

  anionic detergent substantially cancels out the

  tissue softening properties of the compounds

cationic quaternary ammonium compounds.

  For these reasons, the aforementioned quaternary agents have been associated with various compounds

  intended to counteract their anti-deterrent

  or these quaternary softening agents have been replaced by other softening agents

  to improve the cleaning power.

  (Higher alkyl) -mono- and poly-glyco-

  Sides useful as detergents, fabric softeners, surfactants, gelling agents, food emulsifiers and lubricants, as well as processes for their preparation, have been disclosed in US Pat. Nos. 3,598,865, 3,707,535, 3,839,318, 3, 3,839,318 and 3,839,318. 772

269 and 3,219,656.

  To obtain good detergency, (higher alkyl) polyglycosides were used

  as nonionic surfactants in various composi-

  detergents in conjunction with surfactants

  anionic, as described in U.S. Pat.

  Nos. 3,721,633 and European Patent Nos. 0,070,074, 0,070,075, 0,070,076 and 0,092,877, together with anionic surfactant and another nonionic surfactant.

  ionic, as described in U.S. patents.

  Nos. 4,483,779, 4,483,780 and 4,483,787 and European Patent Nos. 0 075 994, 0 075 995, 0 075 996 and 0 105 556. The prior art also discloses

  detergent compositions containing an alkyl polyglycerol

  side, a conventional nonionic surfactant and a cationic fabric softening compound to achieve during laundering at the same time softening and detergent properties, as described in US Pat.

  U.S. Patent No 4 493 773 and the European patents

  0 094 118 and O 106 692. However, these

  patents specifically omit anionic surfactants

  as being harmful to the composition.

  The U.S. Patent No. 4,014,808 discloses an aqueous detergent composition for cleaning hard surfaces such as soils, which comprises alkaline detergency builders, a mixture of (higher alkyl) -mono- and poly-glycosides, a nonionic ethoxylate or any ethoxylate modified by a

  anionic group in acid form, and a flocculant

  such as poly-diallyl-dimethyl chloride

  ammonium, which causes the dirt to congregate in floating flakes, and possibly an alkylarylsulphonate

  sodium as flotation agent.

  However, none of the cited references of the prior art discloses a liquid detergent and softening composition for simultaneously cleaning and softening fabrics, comprising four essential ingredients, namely an alkyl glycoside

  an effective amount to improve the deter-

  gent and softening properties, in the presence of a quaternary ammonium compound softening and

  anionic and nonionic surfactants.

  It has now been discovered that the addition of a surfactant alkyl polysaccharide to a quaternary ammonium softener-containing liquid softener-softener formula in a nonionic-anionic surfactant system enhances detergency and provides improved properties. of

  flexibility to tissues treated with this detergent-softener

  creaser. Therefore, a main object of the present invention is to provide a liquid detergent composition whose cleaning power is improved in the presence of cationic compounds

  quaternary ammonium softeners.

  Another object of the invention is to provide a liquid detergent composition which cleans and

  simultaneously relaxes the tissues during the

  bleaching agent, comprising an alkyl glycoside, a

  quaternary ammonium softener compound, a

  non ionic faction and anionic surfactant

of the four essential ingredients.

  Yet another object of the invention is to provide a liquid detergent-softening composition having improved cleaning properties and

  softeners due to the presence of an alkyl

  glycoside in a detergent composition containing a mixture of anionic, nonionic and cationic surfactants. Other purposes, advantages and novel features of the present invention will be apparent for

  part of the following description and, for the

  remain, will become clear to the specialist or

  result from the practice of the invention.

  To achieve the above and other aims in accordance with the present invention, such as

  illustrated and summarily described here, the

  The liquid detergent-softening composition for fabric laundering according to the present invention comprises four essential ingredients, namely an alkyl glycoside in an amount effective to improve the detergency and softening properties in the presence of a quaternary ammonium softening compound, an anionic surfactant and a nonionic surfactant in an aqueous vehicle; and the method for simultaneously cleaning and softening the fabrics without reducing the brightening and detergency performance is to treat the fabrics with this composition during the wash cycle of the operation

laundering.

  More particularly, the present invention relates to a stable liquid detergent-softening composition comprising about 2% to 25% by weight of a C1-C30 alkyl-mono- or poly-glycoside in an amount sufficient to counterbalance the reduction in detergency. due to the compound about 2 to 8% in

  weight of an ammonium quencher compound quater-

  from about 8 to 25% by weight of a nonionic surfactant and about 1 to 12% by weight of a surfactant.

  anionic, in an aqueous vehicle.

  The alkyl glycosides act as softening agents and reinforce the softening of the tissues in the presence of cationic surfactants. Alkyl glycosides are thought to coat the surface of tissues and / or alter the structure of tissues,

  thus giving them more flexibility.

  It is believed that the alkyl glycosides can break the hydrogen bonds thereby increasing the softening properties. The alkyl glycosides do not interfere with the detergent action and / or the brightener deposition which is another delicate issue in the detergent softeners.

  The alkyl glycosides used in the new

  The detergent-softener caliper of the present invention may be defined as having one or more hydrophobic groups containing 1 to 30 carbon atoms per hydrophobic group, and preferably 8 to 15 atoms.

  of carbon, and a hydrophilic group of glycoside con-

  holding 1 to about 10, and preferably about 1 to 3, saccharide radicals. The alkyl glycosides may be represented by the following formula: RO (R'O) x Zn wherein R is a C1-C30 alkyl radical, (R'O) is an ethoxy, propoxy or glyceryl group, x has a numerical value from 0 to 10, preferably 0, Z is a reducing saccharide containing 5 or 6 carbon atoms, and has a numerical value of 1 to 10, preferably 1.0 to 3. The hydrophobic alkyl group may be straight chain or branched, saturated or unsaturated, preferably linear and saturated, containing 1 to 30 carbon atoms, preferably 8 to 23 carbon atoms. Suitable alkyl glycosides include methyl, ethyl, propyl, octyl, nonyldecyl, undecyl, dodecyl, tridecyl, tetradecyl, hexadecyl, heptadecyl, octadecyl, etc., and mixtures thereof. mono-glycosides, diglycosides, triglycosides, tetraglycosides, pentaglycosides, hexaglycosides, etc. The glycoside units may be glucose, galactose, mannose, lactose and / or fructose. Methods for preparing the aforementioned glycosides are described in U.S. Nos. 3,598,865, 3,707,535, 3,839,318, 3,772,269 and 3,219,656. The addition of the alkyl glycoside to the detergent-softener increases its cleaning power. The amount of glycoside should be sufficient to counteract the loss of detergency due to the presence of cationic softeners of the quaternary ammonium compound type in the detergent-softener. Thus, the glycoside improves the detergency of the detergent-softening composition and constitutes 1 to 30% of

  preferably 2 to 25%, by weight of the composition.

  Quaternary cationic softening agents are well known in the art and include quaternary ammonium compounds, typically at least one of the four nitrogen-bonded groups being an alkyl group of about 10-20 carbon atoms. carbon, at least two of the groups linked to

  the nitrogen atom are alkyl groups which contain

  The fourth group may be either another C10-C20 alkyl group or a C1-C3 alkyl group, and an anion such as halide, acetate, methosulphate, etc., is present. Typical quaternary ammonium compounds are chloride

  of ethyl-dimethyl-stearylammonium, tri-

  methylstearylammonium, trimethylketyl bromide

  ammonium, dimethyl-ethyl-dilauryl chloride

  ammonium, dimethylpropyl-myristyl chloride

  ammonium, tallow (tallow) yl-trimethylammonium chloride, di (hydrogenated tallow) yl-dimethylammonium chloride, di (coconut) yldimethylammonium chloride, distearyl dimethyl ammonium chloride, chloride octadecyl trimethyl ammonium, dodecyl trimethyl or triethyl ammonium chloride, and the corresponding methosulfates and acetates. Other suitable quaternary compounds include biammonium quaternary compounds,

  quaternaries of imidazolinium, quaternary compounds

  polyethoxylated compounds and amido-alkoxylated quaternary compounds. The proportion of quaternary cationic softener to be used in the present detergent-softening composition is preferably about

  2 to 8% by weight of the detergent composition

  softening. In accordance with the present invention, nonionic surfactants for use as fabric cleaners are of the type well known in the art.

  and they include aliphatic alcohol ethoxylates

  primary aliphatic alcohol ethoxylates

  alkylphenol ethoxylates and

  condensates of alcohols and ethylene oxide

  propylene oxide such as Plurafac series products (Wyandotte) and mixtures thereof. Nonionic synthetic organic detergents are generally condensation products of an organic compound

  aliphatic or alkyl-aromatic hydrophobic and

  hydrophilic pes of ethylene oxide. In practice, any hydrophobic compound having a carboxy, hydroxy, amido or amino group with a free hydrogen atom attached to nitrogen may be condensed with ethylene oxide or with its polyhydration product, polyethylene glycol, to form a nonionic detergent. In addition, the length of the polyethoxy chain can be adjusted to obtain the desired ratio between

  hydrophobic and hydrophilic fragments.

  The nonionic detergents comprise a polyethoxylated condensation product of one mole of an alkylphenol containing about 6 to 12 carbon atoms in a straight or branched chain configuration with about 5 to 30 moles of ethylene oxide, for example

  nonyl phenol condensed with 9 moles of ethylene oxide

  lene or dodecylphenol condensed with 15 moles of ethylene oxide. The condensation products of the corresponding alkylthiophenols with 5 to 30 moles

  ethylene oxide are also suitable.

  In the class of nonionic detergents are also the condensation products of a higher alcohol (for example an alkanol containing about 8 to 18 carbon atoms in a straight or branched chain configuration) condensed with about 5 to 30 moles of oxide. of ethylene, for example lauryl alcohol or myristyl alcohol condensed with about 16

moles of ethylene oxide.

  A preferred group of nonionic surfactants are Neodol ethoxylates (Shell Co.) which are ethoxylates of higher aliphatic alcohols containing about 5 to 20 oxyethylene groups per mole of aliphatic alcohol having about 10-18 carbon atoms per for example, a C12-C13 alkanol condensed with 6.5 moles of ethylene oxide, a C12-C15 alkanol condensed with 12 moles of ethylene oxide, a C14-C15 alkanol condensed with 13 moles of oxide; ethylene, etc. Ethoxamers with HLB (hydrophilic-lipophilic ratio) is about 8-15 give a

  good emulsification oil / water, while ethoxa-

  mothers with low HLB (less than 8) contain less than 5 oxyethylene groups and are poor

  emulsifiers and poor nonionic detergents.

  In the detergent-softening composition, this

  nonionic factic is present in a proportion equal to or greater than the alkyl polyglycoside content and which is about 8-25% by weight. The total nonionic surfactants, that is to say the ethoxylates of nonionic alcohols defined above and the glycoside which is also a nonionic surfactant, constitute the

  main detergent component of this detergent-

  softener, ie about 25-40%, preferably

-40%, by weight of the composition.

  The anionic surfactants used in the detergent-softener of the present invention are well known in the art and include alkylbenzenesulfonic acids and their salts, for example compounds of the formula alkyl-phenyl-SO 3 -M o the alkyl group is C 8 -C22, preferably C10-C18, and M is hydrogen or an alkali metal, these compounds constituting a well-known class of anionic detergents o include sodium dodecylbenzene sulfonate, potassium dodecylbenzenesulphonate,

  sodium laurylbenzene sulphonate and cetylbenzene

  sodium sulfonate. Other anionic surfactants

  include paraffin-sulfonates, alkyl-

  sulphates, (alcohol-ether) sulphates, olefins,

  sulfonates and ethoxylated alkylphenol sulphates

  (e.g. sodium sulphate dinonylphenoxy-

  nonaethoxyethanol), and other equivalent water-soluble salts, particularly of the alkali metal series. Among the alkylbenzenesulfonic acids mentioned above and their salts, the preferred compounds include those which are biodegradable and which are characterized in particular by a linear C10-C22 alkyl substituent and preferably

  C12-C15. It is of course, of course, that the length

  carbon chain is generally an average chain length since in the production processes of these products

  usually alkylating reagents o are mixed

  several lengths of chain. It is clear, however, that the substantially pure olefins as well as the substantially pure alkylating compounds used in

  other techniques can give, and actually give

  alkyl benzene sulfonates whose alkyl portion has substantially only one (i.e. at least 1% to 99%) a single chain length,

  for example C12, C13 C14 or C15. (Linear alkyl)

  area) benzene-sulfonates are further characterized by

  the position of the benzene ring in the alkyl chain

  than linear, all isomers of position (ie

  say from alpha to omega) being considered and usable.

  In addition to benzenesulfonates, one can also

  use benzene analogues at one or more

  lower (C1-C4) alkyl groups such as

  toluene, xylenes, trimethylbenzenes, ethyl-

  benzene, isopropylbenzene, etc. Sulfonates are generally used as water-soluble salts

  including as cations those of alkali metals, amines

  monium, lower amines and alkanolamines.

  Examples of (linear alkyl) benzene-

  Suitable sulfonates are as follows: sodium n-decyl benzene sulfonate sodium n-dodecyl benzene sulfonate sodium n-tetradecyl benzene sulfonate sodium n-pentadecyl benzene sulfonate sodium n-hexadecyl benzene sulfonate and homologues corresponding where benzene is

  substituted by one or more lower alkyl groups

  as well as the salts formed with the above-mentioned cations. We can obviously also use

  mixtures of these sulphonates, mixtures which may

  contain compounds in which the linear alkyl chain is smaller or larger than those indicated here, provided that the average chain length of the mixture meets the specific requirement of being

C10 to C22.

  Linear paraffin-sulfonates form

  also a group of well-known compounds

  the water-soluble salts (of alkali metals, amines, alkanolamine and ammonium) of: 1-decanesulfonic acid, 1-dodecanesulfonic acid, 1-tridecanesulfonic acid, 1-tetradecane acid sulfonic,

  1-pentadecanesulfonic acid, and

  1-hexadecanesulfonic acid, as well as other isomers of group position

sulfonic acid.

  In addition to the paraffin sulfonates exemplified above, other ones whose alkyl group is in the general range of C10 to

  C 22 'the most preferable range being C12 to C20.

  The (linear alkyl) sulphates which are

  Included in the present invention include those in the C10 to C20 range. Specific examples are sodium n-decyl sulphate, sodium ndodecyl sulphate and

  sodium, sodium n-hexadecyl sulphate, n-hepta-

  sodium decyl sulphate, sodium n-octadecyl sulphate, and their ethoxylated derivatives (1 to 100 mol)

  ethylene oxide) such as (ethoxylated

  the sulphates, and of course those formed with the other cations which generate water-soluble salts

mentioned above.

  In the group of anionic detergents which have been mentioned above as suitable in the present invention are olefinsulfonates, including (long chain alkene) sulfonates, (long chain hydroxyalkanes) sulfonates, as well as disulfonates. Examples of suitable olefin-sulfonates, purely illustrative of this general class, are sodium (dodecenyl) -sulfonate,

  sodium tetradecenyl sulphonate, hexadecenyl-

  1) sodium sulfonate and sodium (octadecenyl) sulfonate. The amount of anionic surfactant used in the present composition is about 1 to 12% by weight of the composition and is less than the amount by weight of the nonionic surfactant (ethoxylated aliphatic alcohol), and preferably less than

  % by weight of the amount of nonionic surfactants

  total (alkyl-glycoside plus ethoxylated aliphatic alcohol). The detergent-softening composition of the present invention may also contain conventional laundry additives such as brighteners, germicides, wetting agents and the like.

  in suspension of soiling, anti-redepositing agents

  antioxidants, coloring matter

  pigments), perfumes, hydro-alcohols

  soluble, foam boosters, hydrotropes

  such as xylene sulfonates of sodium and potas-

  sium, toluenesulfonates of sodium and potassium

  sium, cumene sulphonates, ethylbenzene sulpho

  enzymes and enzyme stabilizers, provided that they do not interfere with detergent

  and softeners of the composition.

  The following nonlimiting examples illustrate

the present invention.

Example 1

  Detergent-AssouDlisseur C12-C15 alcohol: 7 moles of ethylene oxide Alkyl-polyglycoside, C12-C13 alkyl: 3 moles of glycoside (Staley Industrial Products) Triethanolamine Monoalkyl-trimethylammonium chloride 1

  (C12-C15 alcohol: 3 moles of ethylene oxide

  lene) -sodium sulphate Xylene-sodium sulphonate Brightener Water q.s. %% 0.25% 8.0%

12%

4.0% 0.5% r 100%

chloride of (tallow radical) yl-

trimethyl-ammonium

  The liquid detergent is prepared in

  using the ingredients above until homogeneity

  to form a stable liquid composition.

  The detergency of this product is tested in a Tergotometer containing 1 liter of water at 150 millionths of hardness (calcium) at 48.9 ° C. and 21.1 ° C.

  with a concentration of 0.18% detergent-

  pliers, and compared to detergents

  which do not contain alkyl glycosides.

  A load of tissues composed of soiled pieces

  dye made of Nylon (TEN) and cotton (TEC) test fabric, 65-35% polyester-cotton blend (PC), 50-50% Dacron-cotton blend (DC) and EMPA 101 fabric, washed with detergents and dried in an electric drum dryer. The reflectance of the

  dirty parts as a measure of detergency (Rd).

  Soil removal (ES) is the sum of all Rd values found on all parts, and the soil removal index (SSI) is the average of all Rd values divided by the number

the rooms.

TABLE I

  Dynamo SOLO Example 1 TIDE Liquid BOLD 3

48.9-C,

  Total ES 212.5 202.2 220.9 219.5 181.3

21,1'C,

  Total ES 194.5 183.8 198.7 202.5 193.8 The product of Example 1 demonstrates a

  better cleaning power than Dynamo, Solo and Bold-3.

  There is no statistically significant difference

  between the product of Example 1 and Tide

Liquid at 48.9 ° C and 21.1 ° C.

  The elimination of Sebum at 48.9 ° C is equal to

  that of TIDE Liquid on cotton and DC at 50-50 and better

  that of most competitors on DC to

  -50. At 21.1-C, Liquid Tide is slightly higher than

  while most other competitors

  are equal to the product of Example 1.

TABLE II

  Dynamo SOQLO Example 1 TIDE Bold Liquid 3 Elimination of Sebum from

48,99C

Cotton

DC 50-50

, 71.5

67.8 66.5

  76.5, 6 74.0 71.2 72.3 62.4 Elimination of Sebum from

21.1 C

Cotton

DC 50-50

76.4 71.9 76.2

68.0 65.2 68.2

  , 5, 73,3, 5 A multiple spot test at 48.9 ° C and 21.1 ° C gives the following results, using TIDE

Liquid as a control.

TABLE III

Example 1

48, 9C

  Significant gains Not significant Significant losses

21.1 C

  Significant gains Not significant Significant losses

* Example 1

3

9 3

8 16

Liquid TIDE

48, 9C

Total of 22 rooms

21.1 -C

Total of 22 rooms

1351 1390 1240 1215

  Compared with Liquid TIDE, SOLO losses

BOLD 3

BOLD 3

SOLO

  the most significant detergent

  felt in the case of the enzyme at 48.9 ° C. This was to be expected since the formulation of Example 1

  contains no enzymes. However, we also observe

  losses with oxidizable stains (rye juice).

  sin and blueberry juice). The product of Example 1

  to be significant gains on double knitted Dacron in the case of oily soil (barbecue sauce

and vinaigrette).

  At 21.1VC, losses due to sensory spots

  enzymes are considerably reduced. This is because enzymes are usually more

  effective at high temperatures. At 48.9 ° C, the

  The process of Example 1 is a much more effective detergent

  TIDE Liquid in the case of oil soiling

  (sebum / particulate matter, barbecue sauce,

  Red Crisco food fat, salad dressing).

  BOLD 3 and SOLO do not act better at any temperature.

  The five-cycle test on the effects of

  Softness, antistatic and brightening gives the following results: The fluorescence of the cotton pieces is determined as a measure of the effectiveness

brightening (Rb).

TABLAU IV

  Rb value Example 1 269.94 TIDE Liquid 255.44

SOLO 120.80

DYNAMO 245.53

Bold 3,224.56

  The product of Example 1 is equal to BOLD 3 and better than SOLO for reducing static snagging. As far as relaxation is concerned, the product of Example 1 is slightly more efficient than SOLO but has a better flexibility than

  the formulation of Example 1 without the alkyl glycoside.

EXAMPLE 2

  Neodol 25% -71% Dodecylbenzenesulfonate 6% Sulfate (tallow) yltrimethylammonium quaternary 4% Methylglycoside 2% Moisturizer 0.4% Ethanol 8% Sodium xylene sulfonate 5% Dye 0 , 5% Water qs for 100%

  1 C12-C15 alcohol: 7 moles of ethylene oxide.

12 15

EXAMPLE 3 Detergent-Softener Neodol 25-7 21% Dodecylbenzenesulfonate

  sodium 4% tallow (tallow) yl-trimethyl-ammonium 4% methyl glycoside 2% brightener 0.4% ethanol 8% sodium xylene sulphonate 5% dye 0.5% water q.s. for 100% This formulation is tested in a five-cycle softening test on a clean load of 2.72 kg using Solo as a control having the

  greater softening effect (10). The rating of

  this is a 6.8-fold increase (average of the values recorded after the 1st, 3rd and 5th cycles) and compares favorably with that of Solo. The rating scale of flexibility ranges from 1 (the roughest) to 10 (the most flexible). The addition of 3% (tallow) yl-amine: 15 moles of ethylene oxide to this formulation reduces the softening rating to

  6.0. By removing the quaternary compound and

  both the proportion of methyl glycoside at 6%, the

easing to 7.2.

  The following Table V summarizes the results

  anti-static and brightening effects

  held in 5-cycle tests carried out on 5

test products and 2 witnesses.

21 2593516

TABLE V

Products Cookies 1 2 3 4 5

  DYNAMO SOLO Detergent Detergent Assou- Assou- Assou-

  liquid liquid folder

  6/6 5/5 / 6E 4/4 / 3E / 2MG 4/4 / 2MG 4/0 / 6MG

  Snap Moderate Low Very Low Very Low Moderate Static High to Very Low to Very Low to Very High to Low Low Low Frost 1st Wash 188.5 102.9214.7 211.1 216.3 227.7 228.5 3rd Wash 223.195 , 9240, 4 228.2 241.9 253.2 254.2 nd wash 209.790.5222.4 228.9 237.4 251.4 257, 0 Flexibility 1 10 5.9 5.8 6.0 6.8 7.2

  IES - 171.5 186.1 190.2 186.6 193.4 184.1

  Sodium dodecylbenzene sulfonate (DBS), 6% quaternary (tallow) yltrimethylammonium (quat), 6% 2. DBS, 5% / quat, 5% (tallow) yl-amine: 15 moles ethylene oxide (SAOE), 6% 3. DBS, 4% / quat, 4% / SAOE, 3% / methylglycoside (MG), 2% 4. DBS, 4% / quat, 4% / MG, 2% 5. DBS, 4% / quat, 0% / MG, 6% The above results show that the methyl glucoside gives a better flexibility to the tissues. Laboratory tests also show

  that glucoside gives better properties of

  vivage to liquid formulations. However, in the absence of quaternary compound one does not obtain

antistatic effect.

  It was surprisingly found that the deter-

  The alkyl glycoside-containing softener-softeners not only counterbalance the reduction in detergency due to the presence of the quaternary softening agent, but also improve the detergency and softening properties of the detergent-softening composition. This is clearly seen in Table V, where product 4 containing only 2% of methyl glycoside (Example 3) has a higher degree of softening (6.8) than Products 1 (5, 9), 2 (5,8) and 3 (6,0) which do not contain alkyl glycoside. Also, Product 4 gives more optical brightening after 1st, 3rd and 2nd wash cycles than Products 1, 2 and 3, as well as an increased IES compared to non-alkyl glycoside products. Alkyl glycoside proportions as low as 2% are effective for improving both the detergent and

  softeners of a detergent-softening composition

  pleating used in laundering fabrics. In addition, as shown by the comparative results of Tables I, II, IV and V, the present formulations show better cleaning power and a better performance.

  better softening power than other associations

  surfactant and / or fabric softener-

marketed.

Claims (17)

  A liquid detergent and softening composition for simultaneously cleaning and softening fabrics, characterized in that it comprises, as four essential ingredients, an alkyl glycoside in an amount effective to improve detergency and softening priorities in the presence of a quaternary ammonium softening compound,   anionic surfactant and a non-ionic surfactant that in an aqueous vehicle.   2. Composition according to claim 1, characterized in that the amount of alkyl glycoside is sufficient to counterbalance the reduction of   detergency due to the presence of the compound of am-   quaternary monium, and constitutes approximately 2 to 25% weight of the composition.   3.Composition according to claim 1, characterized in that the alkylglycoside comprises one or more hydrophobic groups containing 1 to 30 carbon atoms per hydrophobic group, and a hydrophilic glycoside group containing 1 to 10 radicals of saccharide reducer.   4. Composition according to Claim 1, characterized in that the alkyl glycoside is an alkyl C1-C30) -mono- or poly-glycoside.   5. Composition according to claim 4,   characterized in that the alkyl glycoside is an alkyl the C12-C13) -triglycoside.   6. Composition according to claim 4, characterized in that the alkyl glycoside is a methyl-monoglycoside.   7. Composition according to claim 1, characterized in that in the quaternary ammonium compound, at least one of the four groups bonded to the nitrogen atom is a C10-C20 alkyl group, at least two of the groups are C1-C3 alkyl groups, and the fourth group is either another group   C10-C20 alkyl, a C1-C3 alkyl group.   8. Composition according to Claim 7,   characterized in that the quarterly compound   to about 2 to 8% by weight of the composition.   9. Composition according to Claim 1, characterized in that the nonionic surfactant is chosen from the ethoxylates of primary aliphatic alcohols, the aliphatic alcohol ethoxylates.   alkylphenol ethoxylates,   condensates of alcohols and ethylene oxide   ne-propylene oxide, and mixtures thereof.   10. Composition according to claim 9,   characterized in that the nonionic surfactant   about 8 to 25% by weight of the composition.   11. Composition according to claim 9, characterized in that the total nonionic surfactant, consisting of the combination of the alcohol ethoxylate and the alkyl-glycoside, is the main detersive component which is present in a proportion of 'about   25 to 40% by weight of the composition.   12. Composition according to claim 9, characterized in that the nonionic surfactant is a   C12-C15 aliphatic alcohol carrying 7 oxy thylene per mole of alcohol.   13. Composition according to Claim 1, characterized in that the anionic surfactant is chosen from alkyl benzene sulphonates, (alcohol-ether) sulphates, olefin sulphonates, paraffin sulphonates, alkyl sulphates and sulphonates. (ethoxylated alcohol) sulfates.   14. Composition according to Claim 13,   characterized in that the content of anionic surfactant   It is less than the nonionic surfactant content and is about 1 to 12% by weight. 15. Composition according to claim 13, characterized in that the anionic surfactant is an ethoxylated C12-C15 alcoholic sodium sulphate containing   3 moles of ethylene oxide per mole of alcohol.   16. Composition according to claim 13, characterized in that anionic surfactant is the   sodium dodecylbenzene sulfonate.   17. A method for simultaneously cleaning and softening fabrics without reducing brightening and detergency performance, characterized by treating the fabrics with the composition of claim 1 during the wash cycle of a laundry operation.