FR2713237A1 - Detergent compsn. contg. tenside, builder - Google Patents

Abstract

A detergent and softening compsn. contains (a) a tenside system, (b) a builder, (c) a softener comprising a silicone, pref. an amino-functionalised oil, and opt. (d) a bleaching/disinfecting/deodorising system, and/or (e) additives.

Description

DETERGENT AND SOFTENING COMPOSITION, SYSTEM
SOFTENER THAT CAN BE CONTAINED IN SAID COMPOSFFLON, PREPARATION AND APPLICATIONS OF THIS SYSTEM
The field of the invention is that of detergency, more particularly of household detergency and, more precisely still, of detergent products used in washing and softening linen.

Within this field, the invention aims in particular,
on the one hand, both detergent and softening compositions,
of the type comprising those:
at least one surfactant system,
at least one "Builder" system,
at least one softening system,
and eventually,
at least one whitening / disinfection / deodorization system,
and / or at least one specific additive system,
- and on the other hand a softening system, capable of being implemented
works, among others, in such compositions.

 Without this being limiting, the invention relates more specifically still to detergent or washing detergent compositions for washing powder or liquid, preferably powder.

 It is known that a laundry detergent is a complex mixture of four groups or systems of products each having very distinct functions.

These systems are as follows: the surfactant system, the builder or active adjuvant system, the bleaching / disinfection / deodorization system and the specific additive system.

 The surfactant system, which is essential in the formula, has the function of wetting textile fibers, emulsifying grease and producing foam. It is generally formed from nonionic, or possibly amphoteric, anionic compounds. Conventionally, these surfactants are in liquid form.

The "builder" system acts as an aid and as a complement to the action of surfactants. In powdery forms, it is it which constitutes the pulverulent filler, useful as a support for generally liquid surfactants. The "builder" must satisfy the following properties:
- elimination of calcium and magnesium,
- dispersing power against solid soiling,
- contribution of alkalinity (pH 9.5 - 10.5).

 The bleaching system acts as an active oxygen donor for the oxidation treatment of colored stains. Generally use persalts such as perborates, capable of allowing the formation of H 2 O 2 during washing.

 The specific additives of a detergent can be enzymes for degrading various messy substrates (carbohydrates, lipids, proteins), polymers, such as CMC, active in the anti-redeposition phenomenon, optical brighteners for improving whiteness, perfumes, anti-caking agents, dyes, among others ...

 Washing the laundry using such detergents causes various mechanical or physicochemical modifications or attacks on the textile fibers. This results in an alteration of the touch qualities of the washed textile articles, an alteration which only increases with the number of washings. Such rough articles, of course, provide particularly negative sensations to users during use.

 This state of affairs therefore opened the way for fabric softeners which have developed to try to remedy these drawbacks.

 The objectives of these fabric softeners are to restore the linen, after washing, softness, flexibility, a smooth and slippery character but also a swelling effect, bringing volume.

 The natural approach which was first proposed to provide solutions to the negative effects of intense washing, especially in a machine, consists of using fabric softeners after washing, that is to say in the rinsing phases and, in particular, during the last rinse.

 The cationic quaternary ammonium derivatives have thus become widespread and imposed as active principles in softening rinse compositions. It is clear that, because of their cationic nature, these quaternary ammonium derivatives can be expressed effectively only outside the washing medium, by anionic nonionic or amphoteric nature.

 In addition, these compounds suffer from a number of defects.

 The first of them refers to the cationic-anionic incompatibility referred to above. One can, indeed, see appearing on the fibers, after use of quaternary ammoniums in rinsing, a precipitate consisting of a complex between residual anionic surfactants originating from washing and the cationic softener. This precipitation causes a veiling of colors.

 Another disadvantage of quaternary ammoniums is that they can cause a possible partial "hydrophobisation" of the treated articles, due to an excessive presence of hydrophobic fatty chains on the surface, which is very annoying, in particular for hand towels.

 Finally and above all, these quaternary ammoniums, cationic, have proved to be allergens, especially vis-à-vis young children and babies.

This defect attracts the wrath of consumers and affects the brand image of products formulated with quaternary ammoniums.

 Faced with this, the reaction of the formulators is now to associate these cationic ammoniums with nonionic products. Complex rinsing softener compositions are thus known which integrate, in addition to the softener, many other additives.

 By way of illustration, mention may be made of softening compositions based on quaternary ammonium derivatives and aminofunctionalized silicones, of a cationic nature and in the form of emulsions. Such compositions are described in particular in GB patent No. I S49,180.

 European patent application No. 0300525 relates to an aqueous emulsion based on crosslinkable aminofunctionalized silicone and preferably combined with cationic quaternary ammoniums, useful as liquid rinsing softener.

 Such previous proposals do not radically eliminate the use of these cationic quaternary ammoniums, which are open to criticism in many respects.

 In addition, it can be considered that the principle of implementing the softening of the laundry during rinsing, does not agree with modern requirements, more and more sought after, of simplicity, speed and rationalization.

 It follows that the most recent generation of compositions having both the detergency and softening functions is likely to satisfy an increasing number of consumers. Such softening detergent compositions I are also called "softergents".

 These products therefore incorporate fabric softener into the laundry itself. A priori, this proceeds from a challenge, given the marked anionic character of the washing agents and the cationic character of the conventional softening agents.

 This is why the known softergents are based on the use of products with little or no cation, such as clay and its derivatives, which, by depositing on the linen in a submicron manner, gives a pleasant touch effect. This therefore does not constitute a softening effect which is limited compared to that obtained with rinsing softeners, the principle of action of which derives from their cationic nature.

 In addition, the accumulation of clay on the tissues can lead to their mineralization, or even their graying. The mineralization of fibers by clay affects the washing performance of the softergent system.

 In addition, clay could also prove to be an allergen against certain individuals.

 In addition, the new so-called "compact" laundry formulas, operating at very low concentration, do not readily accommodate clay as an additive.

Indeed, this must be present in relatively large quantities, to be able to be active. It therefore clogs the formulation to the detriment of the other active softergent systems.

 In such a technical environment, one of the essential objects of the present invention is to provide a softergente composition which advantageously integrates both the detergency and softening functions, with a view to rationalization and simplification.

 Another object of the invention is to provide a softergente composition whose detergent and softening performances are optimal, without antagonism between the functions in question.

 Another object is to provide a softergente composition which does not have side effects of the mineralization and graying type of the linen.

 Another object of the invention is to provide a softergente composition which is perfectly hypoallergenic.

 Another object of the invention is to provide a softergente composition which makes it possible to envisage compact formulas.

 Another object of the invention is to provide a softening system capable of being used inter alia, in softergente compositions.

 Another object of the invention is to provide a softening system which can be used in household detergency and which provides, even at low doses, high level softening performance, while satisfying all the requisites of anallergicity and economy. .

 To satisfy all these objects, the plaintiff has implemented a whole series of studies and tests, at the end of which it had the merit of demonstrating that, against all expectations, it is advisable to have recourse to at least one silicone, preferably an aminofunctionalized oil, as active ingredient in the softening system. In the present case, the inventive character proceeds, surprisingly and unexpectedly, from the discovery of the correct and effective behavior of such silicones under unfavorable anionic and alkaline conditions, which are those of detergency.

The present invention thus relates to a detergent and softening composition (softergent), of the type of those comprising:
- at least one surfactant system,
- at least one "Builder" system,
- at least one softening system,
and eventually
- at least one whitening / disinfection / deodorization system,
- and / or at least one specific additive system,
characterized in that the softening system comprises at least one silicone, preferably an aminofunctionalized oil.

 According to a preferred embodiment of the invention, the above composition is in powdery or granular solid form.

 Aminofunctionalized silicones are active softeners and viscous liquids. They are not soluble in water and are therefore conventionally used, in an emulsified or microemulsified form.

According to the invention, we can distinguish two ways of understanding the integration of the softening system within the composition.
a) - the softening system is prepared independently and
separated to form a premix or additive
individualized, the latter then being incorporated into the
composition;
b) - the softening system is generated during preparation by
mixture of all the constituents of the composition.

 This determines two different types of new and original compositions.

 The present invention also relates to a softening system which could, for example, be used in the compositions referred to above and which consists of particles of soluble support, on which are adsorbed at least one aminofunctionalized silicone and optionally at least one surfactant.

In addition to their softening and softening properties, the composition and the system according to the invention have the advantage of having anti-foaming properties, which are very appreciable in many contexts of application of the invention.
It is advantageous that the solid and pulverulent support is soluble in water and, moreover, that it dissolves by producing a solvating energy, which is used, within the framework of the invention, for the purpose of emulsion (self-emulsion) of the aminofunctionalized silicone active ingredient.

 Given the aim sought, it is easily understood that it is preferable that at least one surfactant is adsorbed with the aminofunctionalized silicone on the soluble powder support.

 The other quality required for the pulverulent soluble support is the power or the adsorption capacity, which must be such as to allow the retention of the silicone (aminofunctional oil) and of the possible surfactant. This is in fact a form of storage of the active softening principle, prior to its incorporation into its site of action, that is to say the aqueous liquid washing / softening medium.

 To clarify the ideas, it may be indicated that, according to the invention, the solid support advantageously has an adsorption capacity which is greater than or equal to 1%, preferably 5% and more preferably still which is between 10 and 100 %.

 The adsorption power considered is evaluated using a method, according to which said adsorption power is deduced from the measurement of the flow capacity of the support. This method consists of spraying a surfactant on powdered sodium carbonate until saturation. This saturation point of the solid support corresponds to the adsorbing power.

The material used is relatively simple. n consists of a glass beaker, a spatula. The surfactant used is a nonionic, eg that marketed under the name CémulsolZ DB311. The test portion is 50 g of sodium carbonate. Cémulsol DB311 (nonionic surfactant) is poured in 5% by weight fraction onto the carbonate. The mixture is stirred with a spatula in order to disperse and impregnate the surfactant evenly. The behavior of the powder is characterized by its fluidity and its level of sticking. When the bonding becomes relatively large, the fraction added is reduced until the support is saturated. This point generally corresponds to a powder, the appearance of which can be defined as follows:
- Bonding: on the walls of the beaker, on the spatula (remaining grains
glued). On the other hand, we also observe the presence of
surfactant on the glass.

- Fluidity of the powder: loss of fluidity, the powder forms lumps
hardly redispersible by agitation.

The adsorbing power is expressed as follows:
PA (%) = mass of surfactant (in grams) / 100 g of sodium carbonate.

 The adsorption power can also be obtained by other measures.

The reading of the bulk density apparent of the mixture T.A / Na2CO3 after each addition of surfactant makes it possible to trace the increase in density as a function of the level of surfactant added. The P.A is in this case given by the slope break in the increase in density. This phenomenon corresponds in fact to a limit of flow of the powder which beyond this point flows only in clods and includes "voids" contributing to a drop in density.

 It is also possible to carry out measurements of flow angles which give a limitable flowability of the powder, also leading to the determination of the adsorbent power.

 However, the method used here has the advantage of being rapid, easy to implement and sufficiently precise (approximately + 2%).

 It should also be noted that the accuracy of the measurement depends on the physico-chemical characteristics of the product tested.

 This adsorption capacity is directly linked to the porosity of the particles of the solid support.

 According to the invention, the soluble support is therefore preferably selected from the electrolytes producing solvating energy by ionic dissociation in an aqueous medium. Without excluding weak electrolytes, it should be noted that strong electrolytes are more advantageous, because they ionize easily and completely.

 In practice, the following soluble mineral or organic products are used, for example: salts of mono and / or mineral and / or carboxylic polyacids, used alone or in mixtures; mineral products being more particularly preferred.

 It can thus be e.g. carbonates, percarbonates, bicarbonates, sulfates, phosphates, polyphosphates, borates, perborates, silicates chlorides, nitrates, acetates or their mixtures.

 The cations associated in these salts advantageously belong to the family of alkalis or alkaline earths. n can be, for example, sodium.

avec R3, R4, R5 identiques ou différents entre eux et représentant chacun un aikylène linéaire en Cl - C4

The active principle at the center of this presentation is an aminofunctionalized silicone constituted by at least one polyorganosiloxane having amine functions and comprising per mole, at least one silicon unit of the following formula:
X (R) a (Z) bSi (O) 3 - (a + b) 2 in which:
- X is chosen from the radicals indicated below:
(i) - R (NHCH2 CH2) j NHR2
with:
.R '= divalent hydrocarbon group, belonging to
preference to the family of linear or branched C1-C6 aikylenes;
.j = O, 1, 2 or 3;
.R2 = H or monovalent hydrocarbon group, of
preference chosen from linear or branched allyles
in Cl - C ,, R2 can also represent a group
monovalent of formula:

with R3, R4, R5 identical or different between them and each representing a linear aikylene in Cl - C4

with:
. Rl being as defined above,
. t = O or 1,
. z = O or 1,
. R7, R8 identical or different and each of which may correspond to
H or a linear or branched hydrocarbon radical, preferably
CH2 CH2 O-) n R9 with n = 1 - 10 and R9 representing H, C1-C6 alkyl or - Rl - NH2 with Rl = (CH2) m with m = 1 - 6;
the radical (s) R being linear hydrocarbon radicals or
branched, identical or different, and preferably selected
from the following radicals: preferably C1-C4 alkyl
optionally perhalogenated such as trifluoro - 3, 3, 3 propyl,
aryl such as aralkyl phenyl;
the radical (s) Z being identical hydrocarbon radicals or
different and preferably selected from the following radicals
: OH, Cl - Cll alkoxyls.

- a = 0, 1 or 2,
- b = 0.1 or 2 with a + b <2;
This polyorganosiloxane can comprise several X units per mole,
identical or different from each other in their nature and / or in their position in the
(or the) molecule (s).

The polyorganosiloxane used can optionally comprise, in addition,
one or more motif (s) M and / or D, and / or T and / or Q of general formula:
(R) c (Z) dSi (O) 4 - (c + d) / 2
(11)
in which:
- R and Z are as defined for formula (I) above.

- c = 0, 1, 2 or 3
- d = 0, 1, 2 or 3, -c + d = 3
These motifs (II) M, D, T and Q do not carry amine functionalities.

If, in the polyorganosiloxane used, there are units T (those of formulas (I) with a + b = 0 and / or (11) with c + d = 1 and (or units Q (those of formula (11) with c + d = O, these units are in the proportion of at most 10% relative to the number of units D (those of formulas (I) with a + b = 1 and / or (11) with c + d = 2).

When the polyorganosiloxane comprises several units M and / or D and / or
T and / or Q, these can be the same or different from each other.

dans laquelle: . les significations de X et R ont été spécifiées dans la formule (I) supra, . Y peut représenter un radical X, R ou OH, . R' peut représenter R ou à Z, - p est généralement compris entre 0 et 1000 et - q est généralement compris entre 0 et 100, avec, dans le cas où q = O, au moins un Y = X.The polyorganosiloxane considered corresponds, for example, to a general average formula of linear type:

in which: . the meanings of X and R have been specified in formula (I) above,. Y can represent a radical X, R or OH,. R 'can represent R or at Z, - p is generally between 0 and 1000 and - q is generally between 0 and 100, with, in the case where q = O, at least one Y = X.

. r is generally between 0 and 100.

dans laquelle les significations de X et R sont identiques à celles données pour la formule (1), . R' correspond à R ou à Z tels que défini supra pour la formule (I), . u = 0 à 20 . v =1 à 10. This polyorganosiloxane can also be represented by a general formula of cyclic type:

in which the meanings of X and R are identical to those given for formula (1),. R 'corresponds to R or to Z as defined above for formula (I),. u = 0 to 20. v = 1 to 10.

 Advantageously, the polydiorganosiloxane comprises on average per mole: from 10 to 150 silicon atoms and from 1 to 10 X groups.

Generally, 100 g of polydiorganosiloxane previously defined comprise 5 to 20, preferably approximately 15 milliequivalents (meq) of function X
Preferably, a polydiorganosiloxane corresponding to at least one of the following definitions is used: * X = radical (i) with:
+ R '= linear alkyl C2 - C4
&commat; j = 0.1
oe R2 = H, linear acyl Cl - C3 or in addition, when j = O, the group:

with
R3, R4 and R5 being identical or different and represent a C2 - C3 * X = radical (ii) with:
+ R '= linear alkyl C2 - C4
+ t = 1
(13 R7 = R8 = - (CH2 CH2 O) n R9 with n = 1 and R9 = H or n = 2 - 6 and R9 = C1 - C3 alkyl.

More preferably, a polydiorganosiloxane corresponding to the following definitions is used: * X = radical (i) with:
Rl = linear alkyl C3 C4
j = 0.1
R2 = H, CH3
The polysiloxanes previously defined are known products which can be prepared in a similar manner to those described in patent US 247592 and in patent US-A-3,389,160 (using a dialcanolamine instead of a dialkylamine if necessary).

By way of nonlimiting example of aminofunctionalized silicone oil, one should cite that of the following structure:

with R11 = H, OH or aryl, preferably CH3.
It should be noted that all combinations of aminofunctionalized silicone (s), (advantageously in the form of oil (s)) as described above with one or more dihydroxylated or non-dihydroxylated polydiorganosiloxanes also fall within the scope of the invention. .

 The softening active ingredient comprising the silicone described above, can be in pure form or as a mixture with other ingredients. In addition, it can be envisaged to use it in a form comprising several heterogeneous phases (O / W), preferably emulsified.

In accordance with the preferred embodiment, the softening system comprises:
- at least one solid, powdery and water-soluble support,
- at least one aminofunctionalized silicone oil,
- and at least one surfactant.

According to a preferred form of the invention, the surfactant (s) are chosen from nonionic or anionic surfactants.
These are preferably fatty and linear alkoxylated alcohols and / or alkoxylated fatty acids. Even more preferably, the aikyl- or aralkylphenolalcoxylates and in particular the alkoxylated dodecylphenol (eg ethoxylate) are retained.

 The weight proportions of amino surfactant silicone are between 10: 1 and 0.1: 1, preferably between 4: 1 and 1: 1 and more preferably still, are of the order of 2: 1.

 In fact, the proportion of surfactant relative to the softening active ingredient is fixed such that an emulsion of said active ingredient is easily and quickly formed after dissolution of the softening system in water. This emulsion is, moreover, advantageously stable for a relatively long period (several tens of minutes) to allow optimal action of the softener.

 It is important that the softener is not overdosed in the system and more particularly in the aqueous liquid medium of use. Indeed, excesses are likely to cause waterproofing of textile articles, which is not necessarily desirable, especially in the case of hand towels.

 Given the limit imposed by the maximum adsorption capacity of the soluble support, the risks of overdosing of the system according to the invention are limited.

 In addition, according to a particular characteristic of the invention, it is provided that the total amount of filler adsorbed on the support, ie of aminofunctionalized silicone oil and of surfactant, is such that 40 to 80%, preferably 50 to 70%, and , more preferably still, 50 to 60% of the adsorbing power of the pulverulent support is used.

 Thanks to these particular weight provisions, the applicant has managed to further improve the efficiency of the softening system according to the invention.

The softening active principle is in fact better and more quickly dispersed in the anionic, nonionic or amphoteric washing medium. It can thus effectively fulfill its function without observing an antagonism with the detergency function also active at the same time, in the medium.

To illustrate these weight / load considerations a little more
Support, it can be specified that the amount of filler adsorbed is advantageously less than or equal to 40, preferably 30, and more preferably still 25% by weight relative to the total filler + support.

 In the preferred embodiment in powder form of the system according to the invention, it appears advantageous to provide an average particle size between 50 and 700 zm, preferably between 80 and 500 zm.

 Whether it is part of an implementation by route a (premix) or by route b (simultaneous preparation with that of the detergent), the softening system according to the invention makes it possible to achieve qualities of touching everything. quite satisfactory for the treated textile articles. In addition, this softening takes place without harming the detergency performance of the composition in which said system is capable of being incorporated.

 Furthermore, it appears that the system does not cause untimely "hydrophobisation" of the treated tissues. It is also established that the softener system according to the invention is not allergenic.

The present invention also relates to a process for preparing the softening system described above. This process consists of:
- to use a solid support powder with a particle size
average less than or equal to 700 ym, preferably between
50 and 600 zm and more preferably still, between 80 and 500 ym,
- And to mix, homogeneously, this powder with the aminofunctionalized silicone and, if necessary, with the possible surfactant, these
last two compounds, preferably in the form
liquid.

 In accordance with the invention, it is important that the mixing of the powder forming the solid support with the active charge consisting of aminofunctionalized silicones and optionally of surfactant takes place using powerful means of homogenization in order to obtain a careful and homogeneous mixture of the various ingredients. It should in particular that the adsorption of the active and liquid charge takes place under the best possible conditions, that is to say those guaranteeing a uniform distribution of the charge within the support.

 The silicone (s) used may be in the form of an oily and homogeneous phase or in the form of an emulsion, e.g. H I </ RT

 The invention will be better understood, its advantages and its variants of implementation will emerge clearly from the examples, which follow, of preparation and functional evaluation of the softening system and of softergente compositions containing it.

EXAMPLES:
A - Raw materials used.

1 - Detergents. known fabric softeners and softergents
Detergent with unique detergent functionality marketed under the trademark ARIEL ULTRA by the company PROCTER & GAMBLE. "Compact" detergent, without phosphates and with zeolites.

 Rinse softener sold under the SOUPLINE brand by the company PROCURER & GAMBLE. "Compact" detergent, without phosphates and with zeolites.

. Detergent-softener composition (softergent) comprising clay as softener, sold under the registered trademark DASH 3
ULTRA by the company GAMBLE. "Compact" detergent without phosphates and with zeolites.

 2 - Fabric softening active ingredients according to the invention.

 Polyorganosiloxane emulsion containing 35% w / w of aminofunctionalized silicone oil and marketed under the name RHODORCILZ EP6736 by the company RHONE-POUINC.

et commercialisée par la Société RHONE POULENC sous la dénomination RHODORCIL 21637, cette huile pouvant également être à moitié neutralisée.Amino silicone oil with structure:

and marketed by the company RHONE POULENC under the name RHODORCIL 21637, this oil can also be half neutralized.

3 - Surfactant
Product marketed under the registered trademark CEMULSOL 860 P by the company RHONEPOULENC.I1 it is an alcohol branched in C10 and ethoxylated with 6 groups ethylene oxide (EO) of formula C10 - 6 EO.

4 - Soluble solid support
Na carbonate = commercial product of RHONE POULENC designed by the registered trademark CARBONATE LEGER.

 This product has an average particle size of 100 m and an apparent density, without compaction, of 0.76.

 B - Mixture for obtaining softergente compositions and softening systems according to the invention.

The device used is a type laboratory powder mixer
LODIGE M5G.

 Various mixtures, in different proportions and orders of introduction of the compounds to be mixed, have been produced. The durations used are between 5 and 15 minutes.

C - Application tests
It is essentially a question of carrying out real washing of linen, in a household washing machine of big brand, this under standard, repetitive conditions, but as close as possible to daily reality. It is possible to carry out a single wash, or alternatively washings on the same load of linen, before carrying out various examinations or measurements on the textile articles thus treated.

 The main test is a sensory test on the quality of the soft touch of terry towels, since the aim is to improve the feeling of touching treated articles.

 This test is carried out in the framework of a sensory analysis laboratory.

It uses a panel of 16 to 20 judges under perfectly predefined conditions, namely:
O Principle: - The judge positions the product on a scale of
flexibility whose zero (lack of flexibility) is
marked with a control towel (washed without fabric softener).

- he himself creates bars checking the rule
equal intervals.

O Protocol: - test carried out on batches of air-dried towels
free.

- 16 trained judges,
each judge evaluates each lot 1 time.

 The evaluation results, analyzed statistically, allow a relative classification of the articles subjected to the examination, on a scale of "flexibility", compared to a witness (note out of 10).

 The volume of terry towels, expressed by the height of a stack of 10 towels folded under predefined conditions is also a factor in assessing the softening performance. The measurement can be made under different crushing pressures obtained by weights placed on the stack of towels, for a given time.

 The same measurement is repeated under different increasingly strong pressures, and one can obtain the behavior of the linen to the crushing, with a graphic representation giving the height of the pile of towel according to the applied pressure. This determination can give some insight into elasticity, or wrinkle resistance.

 In addition, it is also possible to check whether any negative effects of the silicones thus used exist in terms of the washing performance of the detergent.

 To do this, we proceed to the introduction, during the washings, of specimens of soiled fabrics, standard, supplied by specialized laboratories recognized internationally by the profession which are mixed with the load of white linen.

 These test pieces are collected at the end of the operation, their color or whiteness is measured by photometry, and a performance in removing the soiling in question is thus obtained by comparison with the initial measurements. The results make it possible to assess whether or not there has been a disturbance, by the silicone, of the cleaning capacities of the detergent composition.

EXAMPLE 1 Preparation of a detergent and softening composition according to the invention (type a) using an emulsion of aminosilicon softening active principle
A commercial emulsion, namely RHODORCIL EP 6736, is used.

This emulsion is introduced as a softening system in a commercial detergent without a "softergent" system, the Ariel Ultra product from PROCTER &
GAMBLE.

The emulsion was added at the rate of 7 per 100 gr of Ariel detergent
Ultras in the mixer.

 A sufficient quantity of each composition was prepared to carry out 5 cumulative washes on a 2 kg load of linen comprising white terry towels and kitchen towels. The concentration of use of the detergent is in each case of 5 g / l, (that is to say 100 g for each washing which implements 201 of bath) added or not (control) of the silicone emulsions.

The following tests are carried out
Trial 1: Ariel Ultra alone 100 g
Test 2: Ariel Ultra 100 g + 7 g of rinsing softener introduced at the last wash (Soupline).

 Test 3: Ariel Ultra 100 g + 7 g of EP 6736 emulsion, premixed.

 The tests were carried out with static drying, on a hanger.

 No negative effect relating to the washing performance or to a possible hydrophobisation of the towels is observed for test 3.

The evaluation by touch test gives the following results:
Test 1: Note O
Test 2: Note 3.2.

 Test 3: Note 4.2.

 The behavior of the composition of the invention (test 3) is better than that of a conventional rinsing softener, which is a particularly interesting result, if we refer to the performance of conventional softergents, which are notoriously inferior to those of rinsing softeners.

 The result of the compressive strength which is visually translated by Flg. single annexed. It is noted, when there is softening treatment either with rinsing (test 2), or with the aid of the softergent of the invention, (test 3), the pressure compaction ceases at a certain level of pressure, then that it is continuously growing for test 1.

EXAMPLE 2: Preparation and comparative functional evaluation of a softening system in the form of a premix (preemulsion = type a)
A premix is prepared by introducing powdery sodium carbonate and surfactant into the mixer first. After 5 minutes of mixing at 600 rpm, the softening active ingredient is incorporated, which is the aminofunctionalized silicone oil 21637.

After 5 minutes of homogenization, a powdery premix with an average particle size equal to 300 m and the following composition is obtained:
Na carbonate 79% Surfactant 7%
Oil 21637 14%.

 To assess the softening performance of this premix according to the invention, comparative tests of application in a washing machine are carried out with different commercial detergent compositions. Once washed, rinsed and statically dried, the test sample terry towels are subjected to sensory analysis tests.

The compositions used in the tests are as follows:
Test 4: control = ARIEL ULTRAS commercial, without incorporated fabric softener, without fabric softener when rinsing.

 Test 5: DASH 3 ULTRAe, commercial detergent containing an incorporated softener system based on clay.

 Test 6: ARIEL ULTRAS combined with a softener of the SOUPLINE brand> introduced at the last rinse.

 Test 7: ARIEL ULTRA added and mixed with the above premix, at a rate of 8.5% w / w.

The classification obtained on a "softness" scale, by the 16 judges consulted is established as follows:
Trial 4: 0
Trial 6: 2.9
Trial 7: 3.4
Test 5: 3.7
n is therefore a confirmation of the interest and the advantages of the system according to the invention, which appears to be more efficient than the combination of detergent + rinsing softener and substantially comparable to the known softergent, while nevertheless being endowed with an important superiority over him, namely: to be free from clay.

Claims (19)

CLAIMS:  1 - Detergent and softening composition, of the type comprising:  - at least one surfactant system,  - at least one "Builder" system,  - at least one softening system,  and eventually  - at least one whitening / disinfection / deodorization system,  - and / or at least one specific additive system,  characterized in that the softening system comprises at least one silicone, preferably an aminofunctionalized oil.  2 - Composition according to claim 1, characterized in that it is in powder form.  3 - Composition according to claim 1 or claim 2, characterized in that the softening system is prepared by premixture and in that this premixture is then incorporated into the composition.  4 - Composition according to claim 1 or claim 2, characterized in that the softening system is generated during the preparation by mixing all the constituents of the composition.  5 - Softening system capable of being used, in particular, in the composition according to any one of claims 2 to 4, characterized in that it consists of particles of soluble support on which at least one silicone is adsorbed aminofunctionalized and optionally at least one surfactant.  6 - Softening system according to claim 5, characterized in that the soluble support is selected from electrolytes, preferably from strong mineral electrolytes, capable of adsorbing the aminofunctionalized silicone and the possible surfactant and of producing solvating energy .  7 - System according to claim 5 or claim 6, characterized in that the soluble support has an adsorption power which is greater than or equal to 1%, preferably 5% and more preferably still, which is between  10 and 100%.  8 - System according to any one of claims 5 to 7, characterized in that the soluble support consists of at least one salt of mono and / or inorganic and / or carboxylic polyacids and in that it is preferably chosen from the following list of salts: carbonates, percarbonates, bicarbonates, sulfates, phosphates, polyphosphates, borates, perborates, silicates, chlorides, nitrates, acetates and their mixtures.  9 - Fabric softener according to any one of claims 5 to 8, characterized in that the aminofunctionalized silicone consists of at least one polyorganosiloxane having amine function (s) and comprising, per mole, at least one silicon unit of the following formula :  X (R (Z) Si (O) 3 - (+ b)  2  (I) in which:  - X is chosen from the radicals indicated below  (i) - R '(NHCH2 CH2) j NHR2  with:  .R '= divalent hydrocarbon group, appearing from  preference to the family of linear aikylenes or  branched at C, at C6;  .j = 0, 1, 2 or 3  .R2 = H or monovalent hydrocarbon group, of  preference chosen from linear aikyls or  branched at C, - Ç6, R2 which may also represent  a monovalent group of formula:

 with R3, R4, R5 identical or different between them and each representing an all: linear ylene in C1 - C4

 : OH, C, -C, alkoxyls.  different and preferably selected from the following radicals  the radical (s) Z being identical hydrocarbon radicals or  aryl such as aralkyl phenyl;  optionally perhalogenated such as trifluoro - 3, 3, 3 propyl,  from the following radicals: preferably C 1 -C 4 alkyl  branched, identical or different, and preferably selected  the radical or radicals R being linear hydrocarbon radicals or  or - R10 - NH2 with R10 = - (CH2) m with m = 1 - 6;  R7, R8 which are identical or different and which may each correspond to H or to a linear or branched hydrocarbon radical, preferably to HCH2CH2O- R9 with n = 1 - 10 and R9 representing H, a C, - C alkyl,  .t = 0 or 1, z z = O or 1,  R1 being as defined above,  with:  - b = 0,1 or 2 with a + b # 2  - a = 0, 1 or 2,  10 - System according to claim 9, characterized in that the  amino polysiloxane meets the formula (ma) below

 (IIIa) in which - the meanings of X and R have been specified in the formula (I) above - Y may represent X, R or OH, - R 'may represent R or Z, - p is generally between 0 and 1000 and - q is generally between 0 and 100, with, in the case where q = 0, at least one Y = X. - r is generally between 0 and 100.  11 - System according to claim 9, characterized in that the amino polysiloxane corresponds to the following formula (IIIb):  This polyorganosiloxane can also be represented by a general formula of cyclic type.

 v v = 1 to 10.  .u u = 0 to 20  . R 'corresponds to R or to Z as defined above for formula (I),  the meanings of X and R are identical to those given for formula a),  in which:  12 - System according to any one of claims 5 to 11, characterized in that the surfactant is chosen from nonionic or anionic surfactants, preferably from alkoxylated linear fatty alcohols and / or from alkoxylated fatty acids, and more preferably still among alkoxylated alkyl- or aralkylphenols, and in particular dodecylphenolalcoxylated (eg ethoxylated).  13 - System according to any one of claims 5 to 12, characterized in that the weight proportions of amino silicone: surfactant are between 10: 1 and 0.1: 1, preferably between 4: 1 and 1: 1 and more more preferably, are of the order of 2: 1.  14 - System according to any one of claims 5 to 13, characterized in that the total amount of charge adsorbed on the support is chosen so that 40 to 80% preferably 50 to 70% and more preferably still 50 to 60 % of the adsorption capacity of the soluble powder support is used.  15 - System according to claim 14, characterized in that the quantity of adsorbed charge is less than or equal to 40, preferably 30 and more preferably still 25% by weight, relative to the total charge + support.  16 - Process for preparing the system according to any one of claims 5 to 15, characterized in that it consists in using a solid support powder with an average particle size less than or equal to 700 zm preferably between 50 and 600 zm and more preferably still between 80 and 500 zm and to mix, in a homogeneous manner, this powder with the aminofunctionalized silicone and, if necessary, with the possible surfactant, these last two compounds preferably being in liquid form.  17 - Process according to claim 16, characterized in that the powder is first mixed with the surfactant and then with the aminofunctionalized silicone.  18 - Process according to claim 16 or claim 17, characterized in that the solid support powder is at least partly constituted by the "builder" system of a composition according to claim 4.  19 - Application of the softening system according to any one of claims 5 to 15 as a constituent element of detergent and softening composition, of drying softening composition, of rinsing softening composition, or of textile treatment composition.