FR2571756A1 - SOFTENER DETERGENT COMPOSITIONS FOR HOT WATER WASHING CYCLE - Google Patents

Abstract

THE INVENTION CONCERNS COMPOSITIONS OF SOFTENING DETERGENT FOR A HOT WATER WASH CYCLE AT A TEMPERATURE OF AT LEAST 60C. THE SAID COMPOSITIONS INCLUDE A NON-IONIC WATER-SOLUBLE SURFACTANT WITH A TROUBLE POINT LOWER THAN THE SAID TEMPERATURE, A SPECIFIED TISSUE SOFTENING AGENT OF THE CATIONIC COMPOUND TYPE, INSOLUBLE IN WATER, QUATERNARY AMMONIUM QUATERNARY, AND A QUATERNARY AMMONIUM, AN AMOUNT SUFFICIENT TO RAISE THE TROUBLE POINT OF THE COMPOSITION TO A TEMPERATURE ABOVE THE SAID TEMPERATURE.

Description

The present invention relates to a composition and a method for

  cleaning and softening of tissues

  during the wash cycle of a laundry operation.

  More particularly, the present invention relates to softening compositions for use in the wash cycle of a laundry operation, particularly using hot water, the composition

  comprising an inert cationic quaternary ammonium compound

  soluble in water as softening agent and a surfactant

  a nonionic active agent having a cloud point below the wash temperature and an amphoteric surfactant to raise the cloud point of the composition above

the washing temperature.

  The compositions useful for the treatment of

  in order to improve their flexibility characteristics

  and touch are known in practice.

  When used in domestic laundry

  that fabric softeners are generally added to the rinse water during the rinse cycle which has a duration of only about 2 to 5 minutes. Therefore, the consumer

  must monitor the laundry operation or take

  take care so that the fabric softener is added at the correct time. This requires the consumer to return to the washing machine either immediately before the start of the rinsing cycle of the washing operation, or at the beginning of this cycle, which naturally is tedious

  for the consumer. In addition, care must be taken

  to use the correct amount of

  softening it to avoid an overdose that could

  make the clothes hydrophobic by placing a coat

  greasy fat on the surface of the tissues, as well as

  giving them some degree of yellowing.

  As a solution to the aforementioned problems, we know

  the use of fabric softeners that are compatible with

  with common laundry detergents,

  that softeners can be combined with detergents in a single package to be used during the

  washing cycle of the laundry operation. Examples

  of such fabric softening compositions, add

  during the wash cycle, are described in the following

  United States vets 3,351,438, 3,660,286 and 3,703,480. In general, these fabric softening compositions for

  wash cycle contains an ammo-type softener

  cationic quaternary nium and other ingredients which

  softening compounds compatible with

common laundry detergents.

  It is known, however, that the cationic softening compounds added to the washing cycle, either in the form of an ingredient of a detergent-softening composition,

  as a softener for the wash cycle, interfering with

  with the color brightening action as well as the

  cleaning power of the detergent. Thus, we sought to

  think to a certain extent this interference of com-

  detergent-softener positions using nonionic surfactants, higher levels of

  brightener, carboxymethylcellulose, anti-

  yellowing, brighteners, etc. However, we did not

  obtained a slight improvement in the compositions

  wrinkles for washing cycle using various detergents

  gents, most of which are anionic.

  However, there are a large number of descriptions

  in the art concerning detergent compositions containing cationic softening agents, comprising

  softening agents of the ammonium compound type quater-

  and non-ionic surfactants. Representative of this technique is U.S. patents. 4,264,457, 4,239,659, 4,259,217, 4,222,905, 3,951,879, 3,360,470, 3,351,483, 3,644,203, and the like. In addition, U.S. 3,537,993, 3,583,912, 3,983,079, 4,203,872 and 4,264,479 describe in particular

  combinations of nonionic surfactant,

  cationic fabric pleat and another surfactant or ionic modifier, for example two zwitterionic surfactants, amphoteric surfactants, etc. Although many of these formulations of

  the prior art provide cleaning and / or

  satisfactory in many different conditions, they still have the disadvantages of not providing comparable

  softeners added to the rinse cycle, for example

  especially in washing conditions in hot water, that is to say at a temperature of 60 ° C. and higher;

  to require the formation of complexes of the cationic compound

  lunch; to use water-soluble cationic compounds

  weaker softening power, for example

  cationic poses of the mono (higher alkyl) quaternary ammonium type; to be limited to liquid compositions, etc.

  Although it is common for the compositions to

  current laundering habits and that conventional domestic automatic washing machines, in particular

  in the United States, be capable of washing / cleaning

  age of soiled fabrics using cold wash water

  or lukewarm, especially for delicate fabrics,

  Since this does not require ironing, folded

  etc., it is nevertheless realized that a more efficient cleaning (removal of dirt) requires higher washing temperatures. In addition, in Europe and other countries, domestic washing machines operate at high temperatures of 60 C or higher, up to the boiling temperature of

  washing. Although these high temperatures are beneficial

  to eliminate soiling, we do not take advantage of

  equal to the softening action.

  The Applicant has discovered that the power of

  pleating of a detergent system based on a mixture of a

  nonionic detergent compound and a fabric softener

  cationic quaternary ammonium compound is

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  significantly improved by using a limited class of

  non-ionic poses characterized by cloud points

  higher than the washing temperature. In addition, this

  softening power is achieved without

  harmfully or only minimally

  the washing power (that is cleaning). This de-

  is the basis of an application filed the same

  the present application and entitled "Composite

  detergent-softener for washing cycle "with

  the description is quoted here for reference.

  The Applicant has also discovered that the cloud point of nonionic surfactants with problem points below 60 ° C. can be raised to more than 60 ° C. by incorporating an amphoteric surfactant into the detergent composition. It has also been discovered

  mixtures of nonionic / amphoteric mixed surfactants

  photéres are compatible with fabric softeners

  cationic quaternary ammonium compound

  soluble in water, for example diniethyl chloride

  taryl ammonium (CDMDSA) and improving the flexibility of

  cationic fabric softeners in the same

  as the nonionic compounds with cloud point

  who, by themselves, have higher trouble points

  at the washing temperature. I-1 was also

  covered now that the system of mixed surfactants nonionic / amphoteric, even in the presence of the softener

  cationic composition for tissues, has synergistically

  a surprisingly superior cleaning action to that achieved by equal or greater amounts of each

  both surfactants used in the absence of the other.

  A relationship between cleaning power and the point

  of a mixture of nonionic / cationic detergents

  is known from U.S. patents. No. 4,222,905 and 4,259,217. More particularly, as set forth in column 5, lines 40-61 of the aforesaid patent 4,259,217: "Methods for laundering are described herein.

  tissues with the compositions of the present invention.

2r71756

  which provide for the elimination of

  oily and oily skin and benefits for the maintenance of superior tissues. In these

  processes, laundry detergent compositions

  are used in conditions of temperature such as the aqueous solution of laundering

  is at or near the same temperature (that is,

  that is, at about 20 C) of the cloud point (i.e., the temperature at which a nonionic surfactant-rich O10 phase separates in the

  laundry solution) of the surfactant mixture

  nonionic / cationic tif. This can preferably

  it can be obtained by formulating these surfactant mixtures

  non-ionic / cationic agents so that their cloud point falls between approximately 0 and 95 C, in

  particularly between about 10 and 70 C, in particular

  bind between about 20 and 70 C, more preferably between about 30 and about 50 C. During the operation

  the temperature of the white liquor solution

  is maintained in this temperature range.

  temperatures and at 20 C from the temperature of the

  corn. The yield is further improved when the

  the aqueous laundering solution is at 15 ° C, more

   10 C of the cloud point of the surfactant mixture.

nonionic / cationic actives.

  Apparently, the need to operate at wash temperatures equal to or below the cloud point is based on the initial data that the cloud point of the mixture

  of surfactants in the wash water corresponds to the

  temperature at which micelles of the agent aggregate tend to

  sio-active, agglomerate to such an extent that

  The particles enlarge to the extent that they separate from the solution and, consequently, turbidity is observed. An additional rise in temperature leads to a separation

  complete phases of water and non-ionic surfactant

- 2571756

  that and, consequently, the detrimental action exerted on

  sus smear and overall cleaning ability are lost.

  However, although it is established by the US Patent. That the nonionic / cationic mixtures can, depending on the identity and the concentration of the cationic component, provide the advantages known in the art.

  the prior art with respect to these cationic compounds

  However, it is clear that there is no mention or suggestion that the softening effects of cationic compounds can be greatly improved by the use of the fabric softening effects.

  certain non-ionic compounds having in themselves

  high erase of cloud point. This is tantamount to saying that, although U.S. Nos. 4,222,905 and 4,259,217 disclose a relationship between the cloud point of the nonionic / cationic mixture, the temperature

  washing and cleaning power, we have now discovered

  that the relationship between the point of

  nonionic compound alone (or nonionic compound and any electrolyte present in the wash water) and

  the washing temperature which determines the action

  softeners of the ammonium compound type

  cationic ternary insoluble in water. Contrary to

  the need of the present invention to utilize

  nonionic compounds at high cloud point temperature (that is, above

  greater than about 90 C, more preferably

  greater than about 100 ° C), the aforementioned patents prefer nonionic surfactants having relatively low cloud points. Therefore, the nonionic surfactants used in the composition described in these patents are ethoxylated fatty alcohols with a maximum of 12 moles of ethylene oxide, preferably a maximum of

  of 9 moles of ethylene oxide, and having a hydro-

  phile-lipophilic (HLB) content of about 5 to 17,

preferably between about 6 and 15.

  Therefore, it was totally unexpected that the softening power of the cationic softener could be greatly improved without decreasing and in fact with

  improving the cleaning power of the non-ionic surfactant

  using a mixed system of nonionic / amphoteric surfactants that has a higher cloud point

at the washing temperature.

  It is on the basis of this discovery that the pre-

  This invention has been developed.

  Therefore, the present invention aims to

  to improve the softening power of deter-

  containing ammo-type softening agents

  quaternary and non-ionic detergent compounds without significantly affecting, to a significant extent, the

overall cleaning power.

  The present invention proposes to reinforce

  significantly softening power and power

  cleaner of a detergent-softening composition

  containing water-insoluble cationic fabric softening compounds and nonionic surfactants having a cloud point temperature of less than C when used to wash soiled fabrics in

  water at a temperature of at least 60 C.

  These and other objects of the invention

  will come out of the following description are achieved

  by having a laundry detergent composition capable of washing soiled fabrics in an aqueous liquid

  washing, at a high temperature at least equal to

  60 C and can reach the boiling point

  about 100 C, which comprises a surfactant

  nonionic having a cloud point below the temperature

  a cationic quaternary ammonium compound

  as insoluble in water as a softening agent and a

  amphoteric surfactant in an amount effective to

  ver the cloud point of the composition at a temperature

  higher than the high temperature. In the preferred form

  In one embodiment, the detergent composition comprises at least one additional detergent additive selected from detergency builders, thickeners, anti-redeposition agents, corrosion inhibitors, bleaches, enzymes, colorants, agents, and the like.

  brighteners, optical brighteners, perfumes, etc.

  The proposed nonionic compounds are not limited

  only by their solubility in water and their

Cloud point cloud.

  Preferred nonionic surfactants are

  commercially available and come from the

  alkylene oxide or a reactant

  and a hydrophobe comprising hydrogen reactive

  tif. The hydrophobic organic compounds can be

  phatic, aromatic or heterocyclic, although

  Fairy the first two classes. Preferred types of hy-

  drophobes are higher aliphatic alcohols and alkyl phenols, although other

  carboxylic acids, carboxamides, mercaptans,

  tans, sulfonamides, etc ... The condensation products of ethylene oxide and (higher alkyl) -phenols or

  of higher fatty alcohols, represent pre-

  of non-ionic compounds. In general, the hy-

  drophobe must contain at least about 6 carbon atoms.

  ne, and preferably at least about 8 carbon atoms,

  and it may contain as much as 50 atoms

  or more, with a preferred range being about 8 to 22 carbon atoms, more preferably 10 to 18 carbon atoms for the aliphatic alcohols and 12 to 20 carbon atoms for the (higher alkyl) phenols. The amount of alkylene oxide varies considerably depending on the hydrophobe, but as a rule, a quantity of

  minus about 3 moles of alkylene oxide per mole of hydro-

  up to about 14 moles of alkylene oxide per

  the hydrophobic will give the solubility in the required water,

  cleaning power and hot spot temperatures

less than about 60 C.

  Therefore, the nonionic surfactants pre-

  Fe can be represented by the formula: RO (CH 2 CH 2 O) n H (I) wherein R is a primary or secondary alkyl chain of about 8 to 22 carbon atoms

  and n has an average value of 3 to 14, preferably

  from 4 to 12, especially 6 to 11; or R 'O- (CH 2 CH 2 O) mH (II) wherein R' is a primary or secondary alkyl chain of 4 to 12 carbon atoms, and m is on average 3 to 14, preferably 4 to 12,

better still 6 to 11.

  Preferred alcohols from which the compounds

  of formula I are prepared include lauryl alcohols

  than, myristyl, cetyl, stearyl and oleyl and mixtures thereof. Particularly preferred values for R are C 10 to C 18 alkyls, C 12 alkyls to

  C15 and mixtures thereof being particularly preferred.

  Preferred values of R 'are C6 to C12 alkyl groups, C8 and C9 groups, including

  octyl, isooctyl and nonyl, being particularly

ferred.

  Representative examples of nonionic compound of formula (I) are lauryl alcohol condensed with 5 or 7 or 11 moles of ethylene oxide. A representative example of a nonionic compound of formula II is isooctyl phenol

  or nonyl-phenol condensed with 3 to 8

thylène.

  Other nonionic compounds that can be used

  Ser 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 in the acidic moiety and about 3 to about

  12 moles of ethylene oxide or its equivalent.

  Other nonionic surfactants are

  alkylene oxide condensation compounds with the higher fatty acid amides.The fatty acid group generally contains about 8 to about 22 carbon atoms and

  is condensed with about 3 to about 12 moles of

  thylene as a preferred example. We can also use

  the corresponding carboxamides and sulfonamides

appropriate equivalent.

  The amount of the nonionic compound is generally the minimum amount which, when added to the wash water with the amphoteric surfactant, provides adequate cleaning power. In general, quantities included

  between about 0.5 and about 20%, preferably between about

  viron 1 and about 15%, and even better between about 1

  and 10% by weight of the composition may be used.

  The compositions of the present invention are primarily for use with domestic and industrial laundry washing machines which

  operate at high washing temperatures, especially

  especially at water temperatures above about C, preferably above 80 C, and better still

  boiling, that is to say at 100 ° C or more.Natural-

  However, these compositions, although being particularly

  highly effective when used at these times.

  high washing temperatures, can also exercise their

  better softening power at lower temperatures

  res, between less than 60 C and about 20 C or less. When the compositions are formulated for use at washing temperatures in a wide range, for example between 20 and 60 C, as well as

  than at higher temperatures to present their maximum

  Of utility for a wide range of fabrics including delicate natural and synthetic fibers, as well as more temperature-insensitive fabrics such as cotton, etc., the amphoteric nonionic combination and the ratio can be selected to provide a cloud point temperature that exceeds the temperature of the water of

  washing of at least about 20 C, for example a temperature of

  the cloud point of the composition between

    and 90 C. However, when the formulation is intended

  to be used mainly at elevated temperatures.

  washings of 60 C or more, as is generally the case

* the case in Europe as well as when it is used in

  industrial washing machines, the composition will then have

  significantly higher trouble points, for example

  reaching up to about 50 ° C above the washing temperature. Thus, for a wash temperature of 60 ° C, the nonionic / amphoteric must have a cloud point of at least about 65 ° C, preferably at least about C and up to about 90 ° C, preferably

  in the range of about 70 to 85 C. For temperatures of

  of the washing water of 100 ° C., the cloud point of the composition is chosen in the range of about 105.degree.

  at about 150 ° C, preferably from 105 ° C to 120 ° C.

  As used here, the term "cloud point" refers to the temperature at which a graph

  which carries the light scattering intensity of the com

  position according to the temperature of the solution,

  to increase sharply to its maximum value in the

  following experimental conditions -

  The intensity of light scattering is measured

  using a Photogoniodiffusometer Model VM-12397, -fa-

  broken by the French Society of Control and Analysis Instruments, France (the device is hereinafter referred to as (SOFICA)). The sample cell of SOFICA and its

  lid are washed with hot acetone and left to

  expensive. The surfactant mixture is prepared and brought into solution with distilled water at a concentration of 1000 ppm. A sample of about 15 ml of the solution is placed in the sample cell using a

  syringe provided with a 0.2 μm nucleopore filter. The aiguil-

  the syringe passes through the cover of the sample cell so that the interior of the cell is not exposed to atmospheric dust. The sample is left in a variable temperature bath and the bath and the sample are both shaken.

  constant. The bath is maintained at temperature by heating

  ge using the SOFICA heater and is cooled by adding ice (heating rate =

  1 C / minute); the temperature of the sample is determined

  undermined by the temperature of the bath. The intensity of light scattering (angle of 90) of the sample is then determined at various temperatures, using a filter

  green and no polarizer in the SOFICA.

  In the present invention, cloud point measurements are made for both nonionic / amphoteric solutions (1% by weight) in distilled water and in

  water containing 10% NaCl, although the latter case exceeded

  is usually by far the amount of salts and electrolytes

  you are actually met with. Therefore, if the nonionic / amphoteric cloud point measured in a 10% solution of NaCl satisfies the cloud point conditions of the present invention, then there is no problem for the formulation of compositions containing concentrations. very high in detergency builder salts and other electrolytes, for example up to about 85%

of the composition.

  In this regard, it is known that the cloud point temperature for a given composition in the wash solution

  depends on the physical and chemical properties (eg the concentration of

  the cationic, nonionic / amphoteric and other components of this commosition, and will be lowered by increasing the length ethoxylation of the nonionic component, or by adding electrolytes such as phosphates, polyphosphates, perborates, carbonates, sulphates, etc., especially in relatively small amounts (eg between about 1 and about 15% of a given composition ). Because in the present invention, cationic softening compounds insoluble in

  water, cationic compounds will not have appreciably

  any effect on the point of trouble of the com-

  total position. In fact, since the cationic compounds

  softeners used in the present invention are insoluble in water, the temperature of the

  disorder of the total formulation is very difficult to me-

  because the mixes are naturally quite cloudy. As a result, the cloud point of the mixture of nonionic and nonionic / amphoteric compounds with or without the addition of electrolytes is determined in the absence

  cationic compound and this ensures a sufficient measurement.

  precise point of cloud point of the total composition

comprising the cationic compound.

  For washing temperatures between

  60 and 70 OC, all the nonionic surfactants de-

  written above, but which are ethoxylated with at least 15

  moles of ethylene oxide, usually 15 to 30 moles

  ethylene oxide, provide higher cloud

  at the washing temperature, and can provide a

  improved softening power without the amphio surfactant

tery.

  However, for wash temperatures higher than

  at 71.degree. C. to 100.degree. C., in particular from 80.degree. to 100.degree. C., only the most highly ethoxylated surfactants,

  25 to 30 moles of ethylene oxide per mole of hydro-

  phobe, for example C8-Cg alkylphenols ethoxylated with

  to 30 moles, especially 28 to 30 moles, and still more preferably about 30 moles, of ethylene oxide, have points

  sufficiently high to provide flexibility

257 1756

  improved without the amphoteric compound.

  While detergent compositions based on high cloud point nonionic surfactants can provide improved softening as described in the aforementioned patent application, these compositions often have the disadvantage of slightly deteriorating the cleaning power. In addition, highly ethoxylated nonionic compounds are more expensive and less readily available commercially than the compounds

  non-ionic low temperature cloud point

in the present invention.

  These disadvantages are avoided in the present

  as the addition of the amphio surfactant

  allows the use of nonionic compounds less

  expensive and readily available commercially,

  characterized by cloud points of less than 60 C and hydrophilic-lipophilic (HLB) equilibria of about 5 to about 17; it requires much lower amounts of total surfactants to achieve cleaning power

  equivalent or superior; and she raises the point of

  of the composition to a value greater than the temperature

  washing pattern chosen to reinforce the power of

  wrinkling of the cationic fabric softener.

  It has now been discovered that for any of the nonionic compounds, the cloud point may be

  as high as about 40 C, in general

  from about 5 to 20 OC by adding to the composition a

  amphoteric surfactant compound, for example an amphoteric compound

  higher alkyl type photoprene (eg coprah) -

  carboxyethylated imidazoline, generally in a proportion

  about 1 to 20%, preferably 1 to 15%, and more preferably

  core of about 1 to 10% by weight of the composition.

  Therefore, in a preferred embodiment

  of the invention, which is particularly useful for washing soiled fabrics, in a wash water at a high temperature in the range of about 80 C to 100 C,

  the detergent composition comprises, in addition to the surfactant

  nonionic acid of formula I or formula II and the

  water-insoluble cationic quaternary ammonium salt used as a fabric softener of formula III or formula IV, an amphoteric surfactant in an amount of

  sufficient to raise the cloud point of the composi-

  at a value higher than the temperature of 80 to

   C, in particular greater than about 105 C.

  Although we do not want to be bound to a theory

  operation, it is assumed that the surfactants

  Amphoteric and non-ionic agents form mixed micelles that are more soluble than the micelles formed at

  from nonionic compounds alone. These micelles mix-

  provide greater resistance to the formation of aggregates large enough to separate from the solution,

  in order to raise the cloud point.

  Virtually all known amphoteric surfactants can be used to raise the cloud point of the

  cationic fabric softener composition and

sio-nonionic actives.

  Examples of suitable amphoteric detergents are those in which both the anionic group and the cationic group have a hydrophobic organic group, which is preferably a higher aliphatic radical, for example about 10 to 20 carbon atoms. Among these, mention may be made of alkylaminocarboxylic acids with a long nitrogen chain (for example of formula RR2NR'COOM); alkylimino-dicarboxylic acids with a long nitrogen chain (for example of the formula RN (R'COOM) 2) and long-chain alkylbeta-alkyls (for example of the formula RR3R4N + R'COO-) o R is a group long-chain alkyl, for example from about 10 to 20 carbon atoms, R 'is a

  divalent radical linking the amino and carboxyl

  that an amino acid (for example an alkylene radical of 1 to 4 carbon atoms), M is hydrogen or a salt-forming metal, R2 is a hydrogen substituent or the like

  monovalent substituent (for example methyl or other alkyl

  the lower), and R3 'and R4 are monovalent substituents

  slow nitrogen-bound nitrogen carbon bonds

  (for example, methyl or other

  férieur). Examples of particular amphoteric detergents are N-alkyl-beta-aminopropionic acids; the

  N-alkyl-beta-imino-dipropionic acids and N-alkyl-N, N-

  diméthylglycine-; the alkyl group can be for example

  that derived from copra fatty alcohol, lauryl alcohol

  that of myristyl alcohol (or a mixture of

  and myristyl), of hydrogenated tallow alcohol,

  tyl, stearyl or mixtures of such alcohols. The

  amino-propionic and iminodipropionic acids

  The kills are often provided in the form of sodium salt or other salts which may also be used in the practice of the present invention. Examples

  other amphoteric detergents are imidazolines

  such as those obtained by reacting an acid

  long chain fatty acids (eg from 10 to 20 carbon atoms

  bone) with diethylenetriamine and mono-

  geno-carboxylic acids of 2 to 6 carbon atoms, for example 1-coco-5-hydroxyethyl-5-carboxyethyl imidazoline; betaines containing a sulfonic group in place of a

  carboxylic group; betaines in which the subsi-

  The long-chain ester is connected to the carboxyl group without the intervention of a nitrogen atom, for example the internal salts of 2-trimethylamino type fatty acids such as 2-trimethylaminolauric acid, and compounds of any previously mentioned types in which

  the nitrogen atom is replaced by phosphorus.

  A particular class of amphoteric surfactants

  res are the complex amido fatty surfactants of general formula (V) Ck

N 2

he {C2.

R - C - N ± - R1 - OM (V):

OH- R2 COOM

  in which R is a saturated or unsaturated straight or branched chain aliphatic group having 12 to 18 carbon atoms (for example lauryl, tridecyl, tetradecyl,

  pentadecyl, palmityl, heptadecyl, stearyl, tallow, co-

  prah, soy, oleyl, linoleyl), R1 and R2 represent each

  each, independently, a divalent aliphatic hydrocarbon group of 2 to 5 carbon atoms (for example methylene,

  ethylene, propylene, butylene, 2-methylbutylene, pentyl

  born,. etc.), and M is hydrogen or an alkali metal (for example sodium, potassium, cesium and lithium). Examples

  compounds of formula V which are available in the

merce include

N - CH2

  CH2CH2-OH OH-CH2COONa

  available under the designation Miranol CM (liquid) and Mi

  ranol DM (paste) at Miranol Chemical Co .; Soro-

  AL and Soromine At from GAF Corporation and the compounds

Deriphat of General Mills.

  The amphoteric compounds described in columns 3 and 4 of the U.S. 4,203,872 can also be used. They include the following seven groups

of compounds.

  (1) Detergents of the betaine type of formula: o

R O

12 "I

R1-N ± R4-C-O-

11 4

R3 An appropriate example is

CH3 0

I. II

  (Clo-C14) n-alkyl-N + CH2COI CH3 (2) Alkylene-bridged betaine-type detersters of the formula

0 R2 0

H t

  0 RR1 - CH2 _ C _-N _ CH2CH2CH2 _N + _R4C

R3 An appropriate example is

0 CH3 0

"H I 3

  (ClO-C14) n-alkyl-CH2-C12N-CH2CH2CH2-N + -CH2CO-

  CH3 (3) Imidazoline type detergents of formula CH2COOH o

R - C N N R4-- - CH2CO

1 I11 4 - C

N CH

- - \ CH2

  An appropriate example is CH2COOH o I 'aI

  (ClOC14) n-alkyl-C N + _CH2CH20CH2CO-

N 7CH2

CH2

  (4) Alkyl iminopropionate detergents of the formula H ## STR5 ## (5) Alkyl iminodipropionate detergents of the formula

C H2 C H2COOH

Ri-N OCH2CH2CH2

CH2CH2COOH

  (6) Ethyl bromine iminodipropionate type detersters of the formula

CH2CH2COOH

R1-OCH2CH2CH2-N

\ CH2CH2COOH

  (7) Amphoteric detergents made from copraimidea

zoline of formula

H O

R1-C -N-CH20CH2CH2CO

N CH2

  Any mixtures of the amphoteric detergents with each other and with

  the amine oxide type detergents listed above;

  In formulas (1) to (7) above,

  R1 is a straight or branched chain radical,

  saturated or unsaturated containing about 7 to about 20, preferably

  about 8 to 18, and more preferably about 10 to 14 carbon atoms,

  R2 and R3 each represent a lower alkyl group

  C1 to C4, preferably methyl or ethyl, preferably

  R4 is a divalent C1-C4 alkylene group of

  preferably methylene or ethylene, preferentially ethyl

lene.

  A particularly preferred group of amine compounds

  photers are carboxyethoxylated imidazoline (higher fatty alkyl) compounds of formula (8) CH2

P.C HpF ± CH2CH2COO-

HOR4 - N C- R1

  wherein R1 is a straight chain aliphatic group

  or branched, saturated or unsaturated 7 to 20 carbon atoms

  preferably from 8 to 18 carbon atoms, more preferably

  10 to 14 carbon atoms, and R4 is an alkyl group

  the lower divalent of 1 to 4 carbon atoms, preferably

  1 or 2 carbon atoms. Preferred R 1 groups include coconut, tallow, heptadecyl, oleyl,

  decyl and dodecyl, in particular copra (that is to say

  living from coconut fatty acid). The preferred R4 group is

  ethylene (-CH2CH2-). The coconut imidazoline carbon compound

  xyethylated is available under the designation Rexoteric CSF, which is a trademark for a Rexelin product, 100% active ingredient, or as a solution to

45% of active ingredient.

  The derivatives of (higher fatty alkyl) carboxy amine

  ethylene chain are another class

  of amphoteric compound. They include the above groups (4), (5) and (6), i.e., alkyl iminopropionate and alkyl iminopropionate detergents.

  with ether bridge. The carboxyethylated octylamine which is available

  under the designation Rexoteric OASF of Rexolin is a

  particularly preferred element of this group.

  Other classes of amphoteric surfactants such as sarcosines, taurines, isothionates, etc.,

  can also be used.

  Although there is no strict rule, there are no combinations of combinations.

  nonionic surfactants and amphoteric surfactants

  photons or the appropriate amounts of each to obtain

  the required cloud point temperature in excess

  washing temperature to promote the power of

  softening cationic fabric softener, it is generally sufficient to use the amphoteric surfactant with the amount of nonionic surfactant mentioned

  above, in a proportion of about 1 to 20%,

  from about 1 to about 15%, more preferably about

  1 to about 10%, based on the total weight of the composition

  tion. Suitable nonionic: amphoteric ratios within the above-mentioned amounts are in the range of about 1: 5 to 10: 1, preferably

  1: 3 to 6: 1, more preferably 1: 2 to 4: 1.

  However, some general principles and rules relating to cloud point factors such as the fact that the longer alkyl chain groups of the amphoteric generally lower the cloud point of the composition have been described above. Accordingly, it can be appreciated that within the above general ranges, the amount and nature of the amphoteric can vary widely, depending on the particular nature and desired temperature of the formulation activity, as well as nature and quantities of

  other ingredients, in particular nonionic surfactant,

and electrolytes.

  Representative examples to show the ef-

  the rise of the amphoteric cloud point can

  The results of the following experimental results

  are obtained by measuring the

  (C) by the method described above for

  1% active ingredient in distilled water or in saline solution (10% NaCX: Cloud point (C) Surfactant (weight ratio) H20 Dissolved NaCi 10% A. Alcohol C12-C15 alkyl EO * 7: 1 43-2 <25 B. C12-C15 alkyl alcohol EO * ll: 85 + 2 59 + 2 A. + Rexoteric OASF (1: 2) 75 + 2 50 + 2 A. + Rexoteric OASF (4: 1) 58t2 28 + 2 A. + Rexoteric CSF (4: 1) 55 2 42 + 2 B. + Rexoteric OASF (1: 2)> 100 85 + 2 B. + Rexoteric OASF ( 4: 1) 95t2 70t2 B. + Rexoteric CSF (4: 1)> 100 80 2

Isooctyl-phenol EO * 30: 1> 100 -

  Nonyl-phenol EO * 20: 1> 100 72 Nonyl-phenol EO * 15: 91

* EO: Ethylene oxide.

  The results above also show, as

  comparison, the cloud point values of some

  nonionic surfactants of the alkylphenol

strongly ethoxylated.

  The third essential ingredient of the formulations of the present invention is the cationic softener of the

  tissue. Softening agents are used to

  textiles or textiles, and the terms "softening" and "softening" refer to the

  hand, touch or sensation; it is the tacit sensation

  textile or textile materials on the hand or the body and this is an important aesthetic and commercial criterion. In general, the cationic fabric softeners consist of at least one hydrophilic functional group carrying a negative charge and

  a hydrophobic group containing an ammonium atom quater-

who is positively charged.

In order to impart sufficient flexibility to the treated fabrics, it is essential that the cationic compound is insoluble in water. As used herein, a compound is considered insoluble in water if its solubility in water at the wash temperature is less than

  about 1%, preferably less than about 0.5%.

  It is generally desirable that the compound relaxes

  cationic fold is included in the composition under

  a form ensuring great dispersibility in the liquid

  washing and therefore maximum fixation to the treated fabric. This can be achieved by using particle sizes dispersed in the liquid of

  washing between about 10 and about 50 micrometers.

  very preferably between about 10 and about 20 micro-

  meters for the cationic softening compound.

  Fabric softeners of the ammo-

  appropriate water insoluble quaternary nium which are

  known in the trade may be represented by the

following mule:

X (III)

2 5 +

R5 NI X_ 0 (IV)

  R6 R1 and R1 and R5 and R6 are each independently a long chain aliphatic radical of 16 to 22 carbon atoms, R3 and R4 and R7 are, independently, lower alkyl radicals, or R6 may be the group -R9NHCR8 o R8 is a long-term aliphatic radical

I0

  chain having 16 to 22 carbon atoms, and R9 is a divalent alkyl group of 1 to 3 carbon atoms, and X is a

  anion forming a water-soluble salt, for example a halogenated

  Nure, that is to say chloride, bromide, iodide; a sulphate,

  acetate, hydroxide, methosulphate, ethosulphate or a radi-

  mono- or dibasic calcium mineral or similar organic solubilization. The carbon chain of the aliphatic radical containing 16 to 22 carbon atoms, in particular 16 to

  carbon atoms, may be straight or branched, saturated

  or unsaturated. The lower alkyl radicals have 1 to 4 carbon atoms and may contain a hydroxy radical. Preferably, the carbon chains are obtained

  from long chain fatty acids such as those derived from

  with tallow and soybean oil. The terms "di-soy" and "di-tallow", etc., as used herein, refer to the source from which the long chain fatty alkyl chains are derived. Mixtures of the foregoing and other insoluble quaternary ammonium surfactants may also be used if desired.

  the water. The preferred ammonium salt is a dialkyl chloride

  kyldimethylammonium in which the alkyl group is

  hydrogenated tallow or stearic acid, or chlorine

  re di (higher alkyl) imidazolinium. Examples from

  of softening agents of the ammonium quater-

  of formula III, suitable for use in the

  composition of the present invention include the following

  solvents: hydrogenated di-tallow-dimethylammonium chloride,

  dimethyl distearyl ammonium chloride, dimethyl bromide

  stearyl-cetyl-ammonium, dimethyl-diketyl chloride

  ammonium, di-soya-dimethyl ammonium chloride, sulphate

  fate, methosulphate, ethosulphate, bromide and hydroxide cor-

  respondents, etc. Examples of ammonium softening agents

  quaternary compounds of formula IV include 1-methyl chloride.

  1-ethyl-2-diheptadecylimidazolinium (bromide, methosulfate),

  1,2-dieicosylalkylamidoethyl-1-methyl-imino chloride

  dazolinium (bromide, methosulfate, etc.), methylsulfate

  2-hexadecyl-1-methyl-1 [(2-dodecoylamido) ethyl] imidazo

  linium, 2-heptadecyl-11-methyl-l1 [2-stearate methylsulphate

  roylamido) ethyl] imidazolinium, 2-nonadecyl chloride / heneicosyl-1 [(2-eicosoyl / docosoylimido) ethyl] imidazolinium chloride. Dimethyldistearylammonium chloride is particularly preferred because of its superior softening power, biodegradability and low solubility.

  in the water, its availability and its cost.

  The amount of cationic fabric softener may be generally from about 1 to about 1%, preferably from about 4 to about 16%, and most preferably from about 6 to 9% by weight of the weight of the fabric.

the composition.

  The ratio by weight of the nonionic surfactant

l5

  cationic fabric softener can be

  between about 1:10 and 5: 1, preferably between

1: 8 and 4.5: 1.

  The detergent compositions of the present invention

  are preferably provided in the form of powders which are

  freely, but they can also be under-

liquid me.

  The detergent composition of the invention may also

  and generally include, water-soluble builder salts. Water-soluble inorganic alkaline detergency builder salts which can be used alone with the detergent compound or in admixture with

  other adjuvants are carbonates, borates, phospha-

  alkali metal salts, polyphosphates, bicarbonates and silicates. (Ammonium and substituted ammonium salts can also be used). Particular examples of such salts are sodium tripolyphosphate,

  sodium, sodium tetraborate, sodium pyrophosphate

  dium, potassium pyrophosphate, bicarbonate

  sodium, potassium tripolyphosphate, hexametaphos

  sodium pith, sodium sesquicarbonate, mono-

  and di-orthophosphates of sodium and potassium bicarbonate

  sium. The silicates of alkali metals are salts

  useful detergents that also serve to make the anti-corrosive composition for machine parts

  to wash. Sodium silicates having

  Na 2 O / SiO 2 ports of 1.6 / 1 to 1 / 3.2, in particular about 1/2 to 1 / 2.8. Silicates can also be used

  of potassium in the same ratios.

  Another class of detergency builders useful here are the water-insoluble aluminosilicates, as well as

  of the crystalline type that amorphous. Various crystal zeolites

  lines (ie, aluminosilicates) are described in British Patent No. 1,504,168, U.S. Pat. No. 4,409,136 and Canadian Patents No. 1,072,835

  and No. 1,087,477, all of which are cited here as references.

  ence. An example of amorphous zeolites useful herein can be found in Belgian Patent No. 835,351, which patent is also incorporated herein by reference. The zeolites generally have the formula: (M2 (Al 2 O 3) y '(SiO 2) z'WH 2 O wherein x is 1, y is between 0.8 and 1.2, and is preferably equal to 1, z is between 1.5 and 3.5 or more, and preferably between 2 and 3 and w is between 0 and 9, preferably between 2.5 and 6

  and M is preferably sodium. A representative zeolite

  tive is type A or similar structure, type 4A

  being particularly preferred. The aluminosilicates

  have the power to exchange calcium ion from

  200 milliequivalents per gram or more, for example

400.

  Other materials such as clays, in particular

  to bind insoluble types in water, may be ad-

  useful in the compositions of the present invention.

  tion. Bentonite is particularly interesting. This material is mainly montmorillonite which is a hydrated aluminum silicate in which about 1/6 of the aluminum atoms can be replaced by magnesium atoms and with which various amounts of hydrogen, sodium, potassium, calcium , etc., can be

  poorly combined. Bentonite in its most

  (ie, free from sandstone, sand, etc.) suitable for detergents invariably contains at least% montmorillonite and thus its cation exchange capacity is at least about 50 to 75 milliequivalents per 100 g of bentonite. A particularly preferred bentonite is Wyoming bentonites or

  of the United States of America sold under the

  Thixo-jels 1,2,3 and 4 signatures by Georgia Kaolin Co. These bentonites are known to soften textile materials as described in British Patent Nos.

401,413 and N 461,221.

  Examples of sebum detergency builder salts

  alkaline organic treats that can be used alone with the detergent or in admixture with other

  organic or inorganic detergents are the aminopolycarbon

  alkali metal, ammonium or ammonium

  such as sodium and potassium ethyl-diaminotetraacetates, sodium nitrilotriacetates

  potassium and N- (2-hydroxyethyl) -nitrilodiacetane

  triethanolammonium. Mixed salts of these polycarb

boxylates are also suitable.

  Other suitable detergency builders

  organic compounds include succinates tartronates and glyco-

  Carboxymethyl lates. Polyacetal carboxylates are of particular interest. Polyacetal carboxylates and

  their use in detergent compositions are de-

  written in U.S. patents No. 4,144,226; Nos. 4,315,092 and 4,146,495. Other patents relating to similar detergency builders include N

  4,141,676; N 4 169 934; No. 4,201,858; No. 4,204,852;

  No. 4,224,420; N 4,225,685; N 4,226,960; N 4,233,422;

  N 4,233,423; Nos. 4,302,564 and 4,303,777. European Patent Applications No. 0015024; N 002-1491 and N 0063399

are also relevant.

  Various other additives or detergency builders may be present in the detergent product to impart other desired properties, of a functional nature.

  or aesthetic. Thus, one can incorporate into the

  mulation of the minor amounts of release agents

  pension or anti-redeposition of dirt, for example polyvinyl alcohol, fatty amides, sodium salt

  carboxymethyl cellulose, hydroxypropyl methylcellulose

  lulose; optical brighteners, for example cotton brighteners, polyamides and polyesters, for example stilbene, triazole and benzidine sulphone, in particular substituted sulphonated triazinyl stilbene, naphthotriazole stilbene sulphone, benzidine sulfone, etc., the stilbene and triazole combinations being preferred. It is also possible to use bluing agents such

  that ultramarine blue; enzymes, preferably

  proteolytic zymes, such as subtilisin, bromelain,

  papain, trypsin and pepsin, as well as

  zymes of the amylase type; bactericides, for example the

  tetrachlorosalicylanilide, hexachlorophene; fungi

  of; dyes; pigments (dispersible in water); conservatives; ultraviolet absorbers; anti-yeasting agents such as the sodium salt of carboxymethyl cellulose, an alkyl alcohol complex

  C12-C22 with a C12-C18 alkylsulfate; changes

  pH indicators and pH buffers; agents of white

  preserving colors, perfumes, and defoamers or suds suppressors, e.g.

silicon compounds.

  Bleaching agents are classified roughly

  for convenience, chlorinated bleaching agents and oxygen bleaching agents. Bleaching agents

  are exemplified by hypochlorine

  sodium rite (NaOCl), potassium dichloroisocyanurate

  sium (59% available chlorine) and trichloroiso-

  cyanuric (85% available chlorine). Agents of white

  Oxygenated chiment are represented by sodium and potassium perborates and potassium monopersulfate.

  Oxygen bleaches are preferred. Stabii-

  lighteners and / or activators of bleaching agents such as, for example, tetraacetylethylenediamine can

also be included.

  The proportions of the components that can be pre-

  in the preferred total compositions, as a percentage

  by weight (of active substances) on the basis of the total weight of the final product are as follows:

  ionic - about 0.5% to about 20%, preferably

  about 1% to about 15%, especially 1% to 10%; amphoteric surfactant - about 2 to 20%, preferably 1 to

  %, and in particular 1 to 10%; quater ammonium salt

  from about 1% to about 20%, preferably from about 4% to about 16%, more preferably from about 6% to 9%; alkali metal detergency builder salts - from about 20% to about 85%, and preferably from about 35% to about 80%, and particularly preferably from about 60% to 75%,

  remainder consisting of detergent additives,

  and humidity. Suitable ranges of detergent additives are: O-2%, in particular 0.7-1.3%; corrosion inhibitors approximately 0 to 40%; and preferably 5 to 30%; defoamers and suds suppressors - 0 to 15%, preferably 0 to 5%, for example

  0.1 to 3%; suspending agents or anti-redeposition agents

  dirt and anti-yellowing agents - 0 to 10%,

  preferably 0.5 to 5%; dyes, perfumes, agents of

  and bleaching agents totaling from about 0% to about 2%, and preferably from about 0% to about 1%; pH modifiers and pH buffers - 0 to 5%, preferably 0 to 2%; bleaching agent -0% to about 40%, and preferably 0% to

  about 25%, for example 2 to 20%; stabilizers and

  bleaching agents - 0 to about 15 X,

  preferably 0 to 10%, for example 0.1 to 8%. With regard to

  identify the adjuvants, we will choose them

  compatible with the principal constituents

  of the detergent composition. Although nonionic and amphoteric compounds

  are preferably the only surfactant detergent compounds

  active ingredients in the compositions of this invention.

  small amounts of other surface-active compounds, including other nonionic, anionic, and

  zwitterionic substances can also be used, preferably

  in proportions up to 20% by weight, in

  especially 10% by weight, and more preferably 5% by weight.

  Examples of other nonionic compounds include

  all those mentioned above but which comprise, for example, more than 15 moles of alkylene oxide per mole

  hydrophobic material, for example 15 to 30 moles of ethylene oxide.

lene per mole of hydrophobe.

  Examples of suitable anionic detergents include water-soluble salts, for example salts

  sodium, potassium, ammonium and alkylammonium

  higher fat containing about 8 to 20 atoms of

  carbon, preferably 10 to 18 carbon atoms.

  Suitable fatty acids can be obtained from oils and waxes of animal or vegetable origin,

  for example, tallow, fat, coconut oil, talc

  lol and mixtures thereof. Particularly useful are the sodium and potassium salts of fatty acid mixtures

  derived from coconut oil and tallow, for example salt

  Sodium coconut and potassium soap of tallow.

  The anionic class of detergents also includes

  water-soluble sulfated and sulfonated synthetic detergents having an alkyl radical of 8 to 26, and preferably of about 12 to 22 carbon atoms, in their

  molecular structure. (The term alkyl includes

  alkylation of the higher acyl radicals).

  Examples of sulfonated anionic detergents

  are the (higher alkyl) aromatic sulphonates mono-

  such as (higher alkyl) benzene sulfonates containing from 10 to 16 carbon atoms in the straight or branched chain alkyl group, for example the sodium salts thereof.

  dium, potassium and ammonium of (higher alkyl) benzene-

  sulphonates, of (higher alkyl) toluene-sulphonates,

  (higher alkyl) phenol-sulfonates, and naphthalene-

  upper sulfonate. A preferred sulfonate is an alkyl

  linear) benzene sulfonate having a high content of iso-

  substituted phenyl mothers in position 3 (or a position

  higher) and a corresponding low

  less than 50%) in phenyl isomers substituted in

  2 (or a lower position), that is to say in which the benzene ring is preferably largely connected to the 3-position or a higher position (for example 4, 5, 6 or 7) of the alkyl group and the isomeric content in which the benzene ring is attached to the 2 or 1 position is weak in correspondence. Particularly preferred materials are indicated in the patent

United States of America N 3 320 174.

  Other suitable anionic detergents are olefin sulfonates, including alkene sulfonates with

  hydroxyalkane sulphonates with a long chain

  or mixtures of alkene sulfonates and hydroxyalkane

  sulfonates. These olefin-sulfonate detergents may be

  be prepared in a known manner by the reaction of SO 3 with

  long chain olefins containing from 8 to 25, preferably

  12 to 21 carbon atoms and having the formula RCH-

  Wherein R 1 is a lower alkyl group of 6 to 23 carbon atoms and R 1 is an alkyl group of 1 to 17 carbon atoms or hydrogen to form a mixture of sultones and alkenesulfonic acids which is

  then treated to transform sultones into sulfonates

  your. Other examples of detergent sulphates or sulphonates are paraffin sulphonates containing about 10 to 20,

  preferably about 15 to 20 carbon atoms, for example

  the primary paraffin sulfonates prepared by reacting long-chain alpha-olefins, bisulphites

  and paraffin sulfonates in which the sulphonate groups

  fonate are distributed along the paraffinic chain as described in U.S. patents. 2,503,28; N 2,507,088; No. 3,260,741; No. 3,372,188 and German Patent 735,096, the sodium and potassium sulphates of higher alcohols containing 8 to 18 carbon atoms,

  for example sodium lauryl sulphate and tallow alcohol

  sodium sulfate; sodium and potassium salts of alpha-sulfonated fatty acid esters containing about

  to 20 carbon atoms in the acyl group, for example

  methyl alpha-sulfomyristate and alpha-sulfo

  methyl tallow, ammonium sulphates of mono- or diglycerides of higher fatty acids in Co10-C18, for example stearic monoglyceride monosulphate; the

  sodium and alkylolammonium salts of alkylpolyethoxy

  ether sulphates produced by the condensation of 1-5

  ethylene oxide with one mole of higher alcohol

  (C8-C18); (C10-C18 higher alkyl) glyceryl ether

  sodium sulfonates; and alkylphenol-polyethenoxy-

  Sodium or potassium ether sulphates with about 1 to 6 oxyethylene groups per molecule and o radicals

  alkyl contains about 8 to about 12 carbon atoms.

  bone. Suitable anionic detergents also include C8-C18 acyl sarcosinates (eg sodium lauroyl sarcosinate), sodium salts and the like.

  of the reaction product of higher fatty acids

  containing 8 to 18 carbon atoms in the molecu-

  the, esterified with isethionic acid, and salts

  of sodium and potassium (C8-C18 acyl) -N-methyl-

  taurides, for example sodium cocoyl-methyl-taurate

  and potassium stearoyl-methyl-taurate.

  Examples of zwitterionic surfactants include

  take the quaternary ammonium compounds derivatives

257 1756

  containing an aliphatic straight chain group of 14 to 18 carbon atoms and an anionic sulfate or sulfonate solubilization group. Specific examples

  include 3- (N, N-dimethyl-N-hexadecyl-ammonio) -2-hy-

  hydroxypropane-1-sulfonate, 3- (N, N-dimethyl-N-tallow) .am-

  monium) -2-hydroxypropane-1-sulfonate, 3- (N, N-dimethyl)

  N-tetradecyl-ammonio) -propane-1-sulfonate and 6-N, N- (di-

  methyl-N-hexadecyl ammonio) hexanoate. It has now been discovered that the mixture of nonionic / amphoteric surfactants has surprisingly improved cleaning properties compared to

  equal weight of the same nonionic surfactant alone or

  relatively to the corresponding nonionic surfactant ethoxy-

  with enough ethylene oxide to give the same cloud point. For example, using an (alkyl)

  carboxyethylated imidazoline) as surfactant

  amphoteric active, about 50 to 90% of the nonionic compound can be replaced by only about 10 to 40% of the amphoteric surfactant to obtain an equal relaxation

  or higher (depending on the washing temperature) and a

see cleaner equal or greater.

  Since the amphoteric surfactant can act synergistically with the nonionic surfactant in terms of cleaning power, the total amount of nonionic and amphoteric surfactants in the detergent formula can be greatly reduced by example 3

  at 20%, in particular 5 to 10% of the composition. Rap-

  nonionic surfactant to amphoteric surfactant is not particularly important, but

  given non-ionic surfactant, the cloud point

  rises as the amount of amphoteric surfactant

  increases. In general, ratios of the nonionic surfactant

Amphoteric surfactant content of about 1: 5 to 10: 1,

  preferably from 1: 3 to 6: 1, more preferably from 1: 2 to 4: 1

  cleansing power as well as

  improved (when it is necessary to raise the point

  of nonionic surfactant disorder over the time

  washing temperature). In addition, in these ranges of

  above, the mixed nonionic / amphoteric surfactant blend will be fully compatible with the quaternary ammonium softener

cationic.

  In addition to the so-called active materials of these composi-

  other important constituents are the

  salts of inert filler and moisture. A salt of charge

  It promotes the improvement of the mechanical properties of the product, generally improving the flow velocity and combating the tendency of adhesion. It can also promote rapid dissolution of the product in the wash water. Of the payload salts, the best is

  sodium sulphate, preferably in the anhydrous state. This-

  during, other charges, including sodium chloride,

  dium, sodium acetate and alkali metal salts

  of these acids, can also be used, as can

  such as starches, talcs, silicas and dif-

  its other charges that provide a support function.

  The proportion of charge or mixture of charges is

  ra between 5 and 50%, preferably between 10 and 30%, and

  even better, it will be around 20%, especially when

  that anhydrous sodium sulphate is the charge salt. The percentages of moisture will normally vary between 1 and%, preferably between 5 and 12%, and better still they

  will be around 8%. When these proportions are used

  In this process a finely particulate granular or powdery product is obtained which, by adjusting the particle size and the moisture content,

  can be prevented from being too powdery.

  Whatever the form of the laundry detergent

  wise, its use in the washing process is essen-

  the same. The particulate composition is normally

  badly added to the washing water in a washing machine.

  automatic worm so that the concentration in the water

257 1756

  The amount of wash may be from about 0.05 to 1.5%, generally from 0.1 to 1.2%. The water to which it is added is preferably of medium or low hardness, for example of a hardness equivalent to 30 to 120 parts per million in the form of calcium carbonate, but gold can

  just as much, use softer and harsher waters.

  The temperature of the water can be from 20 C to 100 C and

  is preferably 60 to 100 C in case the material

  textile or linen is able to withstand

  high levels without deterioration or attenuation of the

  you. When it is desired to perform a low-level laundering

  The temperature can be maintained at 20-40 ° C and the correct cleaning and softening can be achieved under these conditions, although the product may not be as clean as when it is washed at higher temperatures. At concentrations of compositions

  detergents mentioned, the pH of the washing water is

  usually at 7 to 11, preferably 8 to 10. At such pH, the composition is effective as a detergent, is not too harsh for the washing material nor for the

  skin of the human body and it cleans and softens effectively

  cement. The ratio by weight of the laundry to the washing water is

  typically from about 1: 4 to 1:30 or 1:10 to 1:30.

  The compositions of the present invention provide

  significantly improved softening power, at wash temperatures of at least 60 C, compared with, for example, identical formulations, unlike

  that the amphoteric surfactant is not used to

  The effect could not have been predictable from the prior art because there was no known correlation between the point

  of non-ionic surfactant disorder and the power of

fabric softener.

  An example of a formulation of a composition of

  The softener-softener powder according to the invention is

  hereinafter all parts and percentages being by weight:

COMPOSITION A

  C12-C15 / EO Fatty Alcohol 11: 1 2.0 Rexoteric OASF 45 (45% active ingredient) 8.9 Sodium metasilicate 8.0 Sodium tripolyphosphate 28.0 Sodium pyrophosphate.10 H20 24.0 Sodium orthophosphate 0.5 Nitrilotriacetate (NTA), sodium salt 8.0 Dimethyldistearylammonium chloride (93% active ingredient) 8.0 Minor and miscellaneous additives (eg

perfume, optical brighteners, -

  moisture, etc.) the rest The soiled fabrics are washed at 60 C in about liters of water with a hardness corresponding to 0.12 g / liter using about 100 g of Composition A.

  Washed fabrics are evaluated for their

  plesse by a jury of 4 specialists on replicas

  multiples after a cumulative wash. As a comparison

  sound, an identical composition is prepared for the

  what is not used with Rexoteric OASF and the amount of C12-C15 / EO: 11: 1 fatty alcohol is increased to 8% (Comparative Example), or about 15% of fatty alcohol is used in C12-C15 / EO 30: 1 (Reference Example 1) or 15% nonyl-phenol / EO 20: 1 (Reference Example 2) in place of the nonionic surfactant and the amphoteric surfactant used in the Composition D, and each of these compositions is evaluated in the same manner as for Composition A. Each of the compositions is rated on a scale of 1-10, the score "10l" corresponding to

  better quality and representing the same composition de-

  tergente (without cationic softener) and

  added to the rinse cycle (dimethyldis

  téaryl-ammonium). On this scale, Composition A and Reference Examples 1 and 2 obtain a score of -6 and have equal cleaning power. The composition

  of the Comparative Example receives a score of 2-3 only.

  When in Composition A, the C12-C15 / EO 11: 1 fatty alcohol is replaced by an equal amount of nonyl phenol / EO 4: 1 or nonylphenol / EO 8: 1 or a C 12 -C 15 fatty alcohol / EO 7: 1 or a C14-C16 / EO fatty alcohol 5: 1,

  a score of 5-6 is also obtained.

  Good results are also achieved by replacing

  dimethyl distearyl ammonium chloride in the

  Composition A with hydrogenated dimethyl disulfide

  (b) ammonium, diethyl-disoja-ammonium chloride,

  dimethyl stearyl ketal ammonium chloride or methyl

  2-hexadecyl-1-methyl-1 [2-dodecoylamido) ethyl] imidazolinium sulphonate, and their bromides, sulphates and hydroxides

correspondents.

  Good results are also achieved by replacing

  Rexoteric OASF of Composition A by Rexoteric CSF, Miranol DM,

CH O

at 3 "

(Cl-C14) n-alkyl-N + CH2CO-

  CH3 or HIl n-alkyl (C12-C18-C N + CH20CH2CH2CO I

N CH

  C / H2 The detergent-softening compositions of the present invention have the particular advantage that, because they can provide better

  cleaner with lower total amounts of

  If active, more concentrated formulations can be prepared and packaged for use.

by the consumer.

  The processes for producing the compositions

  here are generally well known in the art

  and in particular reference is made to the U.S. Patent.

  No. 4,269,722 in which nonionic powders of

  relatively high capacity and loaded with a detergency additive are produced from spray-dried base beads which are spray-coated with non-ionic detergent (which may contain other minor conventional additives such as dyes, perfumes, brighteners, bleaching agents, etc.). This patent is

cited for reference.

Claims (9)

R E V E N D I C A T I 0 N S   1 - Laundry detergent composition, capable of washing and softening soiled fabrics in an aqueous washing liquid at a high temperature of at least 60 ° C., said composition being characterized in that it comprises (a) a water soluble nonionic surfactant   having a cloud point below the elevated temperature EBV;   (b) a fabric softening agent of the type com   cationic, water-insoluble, ammonium quater-   and selected from the group consisting of compounds of formulas III and IV: 1N5 ["R3 X (III) LR2 J4 5 N] X (IV) [R5 <N) L 6 R7   in which R1 and R2, and R5 and R6 each represent, 2   independently, long-chain aliphatic radicals of 16 to 22 carbon atoms, R3 and R4, and R7 are each independently lower alkyl radicals, or R6 can be the group -R9NHCR8 wherein R8 is a 0   long chain aliphatic radical of 16 to 22 carbon atoms, and R9 is a divalent alkyl radical of 1 to 3 carbon atoms, and X is a salt forming anion; and   (c) an amphoteric surfactant in a sufficient amount   fisante to raise the cloud point of the composition   at a temperature above the elevated temperature. 257 1756   2 - Composition according to claim 1, characterized   in that the nonionic surfactant (a) is selected from the group consisting of the compounds of formulas I and II: 5.R0 (CH2CH2O) nH (I) R - + 'O (CH2CH2O) mH (II) )   in which R is a primary alkyl chain or se-   straight or branched from 8 to 22 carbon atoms, R 'is a primary or secondary alkyl group of 7 to 12 carbon atoms, and each of n and m is a number having an average value of 4 to 14.   3 - Composition according to claim 1, characterized   in that the amphoteric surfactant is selected from the group consisting of: (1) betaine-type detergents of the formula: R 0 " R1- N ± R4-C-O-   R3 (2) alkyl-bridged betaine-type detergents of the formula: R2 R1-CH2-C-N-CH2CH2CH2-N ± R4-C0   R (3) imidazoline type detergents of the formula CH2COOH 0 l u R1-C N ± R4-O-CH2CO N / CH2 CH2   (4) alkyl iminopropionate detergents of the formula R1 N-CH2CH2COOH   (5) Alkyl iminodipropionate detergents of the formula: CH2 CH2COOH R1-N C CH2CH COOH   (6). detergents of the iminodipropionate type of al- kyle with ether bridge of formula CH2CH2COOH R1-OCH2CH2CH2-N CH2CH2COOH   (7) Amphoteric detergents made from coconut imidazoline of formula H O0 R1-C N -CH20CHCH2CH2O He I N CH   CH 2 (8) amphoteric detergents based on (higher fatty alkyl) carboxyethylated imidazoline of formula 3O H2C HN -CH2CH2COO HOR2- '=== - R1 and their mixtures,   in which R 1 represents an aliphatic radical than 7 to 20 carbon atoms,   R2 and R3 each represent a lower alkyl group   less than 1 to 4 carbon atoms, and R4 represents a divalent lower alkyl radical of 1 to 4 carbon atoms.   4 - Composition according to claim 1, characterized   in that it includes, on the basis of the weight of   active ingredients in relation to the total weight of the   about 0.5 to about 20% of (a) about 1 to about 20% of (b) about 1 to about 20% of (c) and the remainder (d) of detergency builders, inert charges and humidity.   5 - Composition according to claim 4, characterized   in that the ratio of (a) :( b) is 1:10 to 5: 1,   and the ratio of (a) :( c) is from 1: 5 to 10: 1.   6 - Composition according to claim 1, characterized   in that it includes, in addition, at least one addi-   detergency agent selected from the group consisting of inorganic salts detergency adjuvants, organic adjuvant salts   detergents, agents for suspending soil   res, anti-redeposition agents, fatty amides, suds suppressors, defoamers, optical brighteners,   soluble dyes, pigments, brighteners, anti-   yellowing, enzymes, corrosion inhibitors,   pH indicators, pH buffers, bactericides, fungicides, preservatives, bleaches, bleach stabilizers, bleach activators, fragrances and water.   7 - Composition according to claim 1, characterized   in that it includes, on the weight basis of the active substances,   (a) about 0.5 to about 20% of the surfactant nonionic active;   (b) about 1 to about 20% of the fabric softener tionique;   (c) about 1 to about 20% of the amphoteric surfactant   photère; (d) about 20 to about 85% of builder salts; (e) 0 to about 40% corrosion inhibitors (f) 0 to about 40% bleaching agents and activators; (g) 0 to about 10% soil suspending agents or anti-redeposition agents; (h) 0 to about 10% of anti-yellowing agents (i) 0 to about 2% of each of the following additives:   optical brighteners, dyes, brighteners, bac-   tericides, fungicides and enzymes; (j) 0 to about 15% of antifoaming or suds suppressing agents (k) 0 to about 5% of each of the following additives: pH modifiers and pH buffers; and (1) the rest being water.   8 - Composition according to claim 3, characterized   comprising about 1 to 10% of (a), about 6 to 9% of (b), about 1 to 10% of (c), and the remainder (d) of detergent builders, inert charges and humidity, -   the weight ratio of (a) :( b) being from 1: 8 to 4.5: 1 and the   ratio of (a) :( c) being from 1: 2 to 4: 1.   9 - A method for cleaning and softening soiled fabrics in a washing water at a temperature of at least about 60 C, characterized in that it consists in washing   the tissues in an aqueous solution of the composition se- according to claim 1.   - Process according to claim 9, characterized in that the temperature of the wash water is approximately C.