ES2307260T3 - IMPROVEMENTS RELATED TO THE WASHING OF DOMESTIC COLADA. - Google Patents

Abstract

An aqueous textile treatment liquor suitable for use in a domestic laundering process comprising a detersive surfactant, positively charged, particulate material having a particle size of 5-200nm, and, an emulsified, water-dispersible silicone blend comprising both silicone and at least one amino-silicone, the weight ratio of silicone to amino silicone being in the range 20:1 to 3:1 and said silicone blend having a droplet size of 5-20 microns.

Description

Improvements related to laundry washing domestic.

Technical field

The present invention relates to the treatment of textile materials during a laundry wash process. In In particular, it refers to treatments that will soften the tissues and reduce the incidence of wrinkle formation during use.

Background of the invention

Physical techniques for reducing wrinkles, such as heat and pressure (for example pressing / ironing with steam) are long established forms and are Effective ways to flatten clothing. However the effect is not permanent and wrinkles reappear "during the use "due to a series of shear, torsion and compression deformation Heat and body moisture increase The effect of these forces.

Chemical techniques are also known for reduce wrinkles These can be organized in three strategies:

(a) the use of lubricants to improve the recovery after crease formation,

(b) the use of crosslinking agents and agents film formers to reinforce the fibers so that they resist the formation of folds first, and

(c) the combination of (a) and (b).

A wide range of lubricants has been proposed and crosslinking agents. The lubricants used in the technique Above include silicones such as polydimethyl siloxane (PDMS), aminosilicones, modified silicones, silicone copolymers, softeners (for example, quaternary ammonium compounds) and others lubricants such as clays, waxes, polyolefins, oils Synthetic and natural

The film-forming agents and agents of crosslinking suggested in the prior art include: polymers natural (such as enzymatic proteins, cyclodextrins, polysaccharides, for example, starch, chitin, chitosan, cellulose, 1,4-polysaccharides, SCMC, guar gum, HEC, etc.) and synthetic polymers (such as polyamides, polyurethanes, polyamines, polyolefins, polyols, PEG, polystyrene, PVA, PVC, vinyl polymers, acrylics). Functionally, some of these have been described as film-forming polymers, polymers reagents (such as materials containing epichlorohydrin, which contain isocyanate, contain epoxy or can be cured) or elastomeric polymers (including both thermoplastic elastomers as silicone elastomers).

Other attempts to prevent wrinkles have employed small molecules such as salts, amino acids, sugars,  saccharides, oligosaccharides, alcohols and acids. The agents of Known crosslinking also include compositions based on methylol urea, carboxylic acid, formaldehyde, ammonia, triazine and epoxide

WO 2002/0193276 A1 describes a laundry detergent powder formulation comprising one or more wrinkle reducing agents selected from copolymers linear aminopolydimethylsiloxane-poly (oxide alkylene); high molecular weight polyacrylamides and copolymers of alkyl lactam and siloxane.

WO 2004/018762A1 (Philips) describes the use of elastomeric film-forming agents that can melt with crosslinked particles to improve recovery after wrinkle formation in spray applications or ironing cartridge.

WO 2004/0486 (Philips) describes film forming agents for application recovery spray or ironing cartridge that include elastomers melts + polycationic salts for crosslinking of elastomers

WO 2001 / 25381-5 (Ciba) describes compositions with (A) a fabric softener, (B) an additive and (C) polyorganosilicones selected to provide tissue in domestic applications with anti-ball formation properties, elasticity, hydrophilicity, draping and recovery after wrinkle formation, respectively. These properties are provided by organosilicone. Among the additives, polysi- acid is mentioned
lyrical

WO 2002/088293 and US-A1-2002 / 019236 (Unilever) describe tissue care compositions comprising coated particles comprising a solid core with a size D 3.2 particle medium comprised between 10 and 700 nm of diameter and a bonded silicone polymer coating covalently to the solid core. In a list of materials Suitable for the solid core is silica.

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The document EP-A-1201817 (Procter & Gamble) describes aminosilicones with impaired functional groups sterically to achieve resistance to wrinkle formation during use, which are preferably supplied by spraying during the domestic ironing process.

WO 2004/046452 describes a formulation to treat natural and synthetic fiber materials comprising at least one nitrogen-free polysiloxane compound, at least one polyamino polysiloxane and / or polyammonium compound polysiloxane, and / or at least one amino polysiloxane compound and / or polysiloxane ammonium

The document EP-A-1096060 (Procter & Gamble) describes water soluble silicone lubricants in combination with various polymeric compounds (film formers) that, reportedly, they provide the tissues with a recovery angle at the wrinkle of at least +15 units above the water.

The document EP-A-953675A2 (Dow Corning) describes a textile material coated with an elastomeric compound based in silicone with a reinforcing load, preferably a load of silica and a second laminar load preferably talc and mica. Coated tissues, among other beneficial effects, have less friction and are used for seat belts cars There is no teaching on the beneficial effect  in relation to wrinkles of mixed silicone charges + particles

GB 842027 (Monsanto Chemicals) describes compositions that improve textile friction based on silica nanoparticles dispersed within drops of an emulsion of oil. The oil can be any of the textile oils known including mineral or vegetable oils. The relationship between oil and silica exceeds 6 and levels of deposition of 3-7% of oil and 0.1-0.5% silica with respect to the weight of the tissue.

It has been proposed to use the so-called "nanoparticles" for tissue treatment. The document WO 02/064877 (P&G) describes coating compositions that they comprise a system of "nanoparticles" of a smaller size or equal to 750 nm, with a lower limit of "0" nm. The examples provided include synthetic silica (10-40 nm), boehemite alumina (2-750 nm) and "nanotubes" (2-50 nm). Clays are considered adequate, particularly the plate-type laponites (of 25-40 nm wide and ~ 1 nm thick) and it they propose organic materials such as nanoltex.

EP 1371718 (Rohm and Haas) describes 1-10 nm polymer nanoparticles as additive for tissue care. These can be modified organically with silicones

WO 02/18451 (Rhodia) describes the use of nanoparticles in a polymeric or nanoltex form.

DE 10248583 (Nanogate Technologies GmbH) describes the use of inorganic nanoparticles as support for a silane material.

The previous request of those present Applicants WO 2006/063693-A1 not published in the date of submission of this application, describes the use of 1-10 nm negatively charged nanoparticles, organic / inorganic hybrids, in a surfactant composition Suitable for the treatment of cotton. It is believed that you are particles penetrate the pores of the cotton fiber and that this Strengthens the fiber.

US 2635056 (Monsanto) describes the treatment of textile materials and fabrics with a solution Aqueous silica plus a polyhydric alcohol such as glycerol. The mixtures are called alco-aqueous solutions and provide exceptional slip resistance to textile materials and surprisingly improve handling and tissue touch, which is attributed to the presence of glycerol. The The ratio between silica and glycerol used in the example is 1.4. Be has stated that the level of polyhydric alcohol should not exceed twice that of the silica.

WO-2001/083875 (Ajinomoto Co.) describes the application of silica and a softener with a cationic acrylic binder followed by the application of a treatment solution containing arginine to nylon braces to provide beneficial effects in relation to care. of the skin when wearing the
suspenders.

The document EP-A-1024119 (Relats) describes textile articles made of fibers containing SiO2 and a procedure to improve its thermal stability.

JP 04255767 (Nichihan Kenkyusho K.K.) describes coating compositions for materials textiles comprising a synthetic emulsion (acrylic), gel silica with colloidal or microparticle metal oxide and a zeolite to provide textile coatings with good antibacterial, deodorant, drying and retention properties of heat.

The document NL 8900473 (Hesco Fashion Netherlands) describes the manufacture of viscose rayon-polyester coated with a mixture of a non-ionic fatty acid condensate fabric softener and a acid silica dispersion of a blocking agent (which blocks the free warp and weft movement - enhancer friction). The ratio between softener and silica is 1: 1 and The level applied is 1% silica and 1% softener.

Despite all this effort, no product known meets the consumer's need for resistance effective against wrinkles during use by a composition that can be easily administered in the main wash while the tissues maintain good handling properties, softness and comfort during use. This composition should not have adverse effects for the user due to the reactive nature of the chemical agent involved. In addition, it is particularly desirable. that a product provides resistance to the formation of wrinkles during use after the first wash cycle in which it's used.

Similar difficulties are known in relation to with the administration of softness in the main wash. It has been tried to administer softening agents in the main wash, but these have generally provided a reduced level of softness due to the cleansing effects of surfactants present or to other interactions between surfactants and softeners

Brief Description of the Invention

It has been determined that a combination of positively charged particles with a relatively size small and a specific class of lubricant drops can provide beneficial effects in relation to folds and wrinkles "during use" when supplied in the wash principal. These compositions can also provide a beneficial softening effect. This allows the formulation of a main wash product provided by the so-called benefit "two in one" and avoids the need to use another composition added in the rinse or used in a treatment after washing, such as during ironing. The composition avoid the use of reactive chemical species.

The present mention provides an aqueous liquor for the treatment of textile materials suitable for use in a domestic laundry washing process, comprising:

a) 0.1-10 g / l of a surfactant detersive,

b) 0.001-1 g / l of a material in particle shape, positively charged that has a size of 5-200 nm particles, and

c) 0.001-1 g / l of a mixture of water dispersible silicone, emulsified, comprising silicone and at least one aminosilicone, the weight ratio being between silicone and aminosilicone in the range of 20: 1 to 3: 1 and said silicone mixture having a droplet size of 5-20 micrometers

Although it is not desired to limit the invention by reference to any theory of operation, the material is believed in Particle shape is associated with the thread / fibers of the textile material reinforcing the yarn / fibers and, therefore, providing resistance to wrinkle formation. At the same time, the mixture of silicone lubricates the thread / fibers to aid recovery after the formation of folds and wrinkles while also ensuring that there is a uniform touch in the whole textile material.

The particle / silicone mixture also provides softness In a particularly preferred embodiment of the invention, this softness is "non-greasy" that has no an "oily" touch, and is described by the jury as a "dry" softness.

Detersive surfactants are present in The composition to help clean. Typically, the detersive surfactant will comprise anionic surfactants, nonionic surfactants or a mixture thereof. In the case of the present mention, the anti-wrinkle effect and the effect softener, surprisingly, they are not nullified by the presence of surfactant Adjuvants may also be present, as well as other components generally present in wash compositions of laundry.

Another aspect of the invention comprises a concentrate for dilution to form a liquor according to the present invention, said concentrate comprising more than 10% in surfactant weight. This concentrate can be in solid form or liquid and is suitable to be added to water to form the liqueur.

Another additional aspect of the invention is based in the use of the liquor according to the present invention in the washing step of a laundry washing process for garments wear.

Detailed description of the invention

The invention is described below by making particular reference to various preferred features of the compositions and the methods that materialize it. Preferably, the method of the invention applies to textile materials that they comprise cellulosic fibers, more preferably materials textiles comprising at least a proportion of fibers of cotton, for example, cotton per se or cotton blends (i.e. cotton / polyester blends).

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Detersive surfactant

The purpose of the detersive surfactant is clean. Many suitable active detergent compounds are available to the person skilled in the art and are described with detail in the bibliography, for example, in "Surface-Active Agents and Detergents", Volumes I and II, by Schwartz, Perry and Berch (published by Wiley Interscience).

Preferred surfactants that can be used are the soaps and, more preferably, the anionic compounds and non-ionic synthetic non-soaps that are known and are used in the formulation of detergent compositions suitable for Use in laundry.

Anionic surfactants are well known. for specialists in the art. Examples include alkylbenzene sulphonates, particularly alkylbenzene sulphonates linear having an alkyl chain length of C 8 -C 15; primary alkyl sulfates and secondary, particularly primary alkyl sulfates C 8 -C 15; alkyl ether sulfates; olefin sulfonates; alkyl xylene sulfonates; dialkyl sulfosuccinates; Y fatty acid sulfonate ester. Salts are generally preferred of sodium.

The nonionic surfactants that can be used include alcohol primary and secondary ethoxylates, especially aliphatic alcohols C_ {8} -C_ {20} ethoxylates with an average of 1 to 20 moles of ethylene oxide per mole of alcohol, and more especially primary and secondary aliphatic alcohols C_ {10} -C_ {15} ethoxylates with an average of 1 to 10 moles of ethylene oxide per mole of alcohol. Surfactants Nonionic non-ethoxylated include alkyl polyglycosides, monoethers of glycerol and polyhydroxyamides (glucamide).

The cationic surfactants that can be used include quaternary ammonium salts of the general formula R 1 R 2 R 3
R 4 N + X - in which the R groups are independently hydrocarbyl chains with a length of C 1 -C 22, typically alkyl, hydroxyalkyl or ethoxylated alkyl groups and X is a solubilization cation (for example, compounds in which R 1 is a C 8 -C 22 alkyl group, preferably a C 8 -C 10 or C 12 -C_ alkyl group {14}, R2 is a methyl group and R3 and R4, which may be the same or different, are methyl or hydroxyethyl groups); and cationic esters (eg, choline esters) and pyridinium salts. Since the present invention does not comprise a conditioner for use in rinsing, levels and types of cationic surfactant other than those of other surfactants that are detersive will be used, that is, that are adapted for cleaning rather than for conditioning.

The total amount of detergent surfactant in the concentrate is conveniently 11 to 60% by weight, for example 10 to 55% by weight, such as 10 to 50% by weight. Be they prefer higher levels of surfactants for reasons of economy of transport and to reduce packaging levels employees.

Preferably, the amount of surfactant anionic (when present) is in the range of 1 to 50% by weight of the total concentrate. More preferably, the amount of anionic surfactant is in the range of 3 to 35% by weight, for example 5 to 30% by weight.

Preferably, the amount of surfactant does not ionic when present is in the range of 2 to 25% in weight, again expressed in terms of the concentrate, more preferably from 5 to 20% by weight.

Amphoteric surfactants can also be used, for example, amine oxides or betaines.

The particulate material

As indicated above, it is believed that the particulate material acts, in part, to reinforce the fibers of the textile material. Some indications suggest that in the cotton case, this is achieved by adsorption and coating of cotton fibers. Depending on the size of the material in particle form, part can also enter the pores of the cotton fibers These pores have a diameter of approximately  90 nm Therefore, at the lower end of the range of particle sizes (5 nm) will produce some input from particles in the pores. The fact that the particles are positively charged helps the interaction of particles with cotton, since cotton tends to carry a load slightly negative.

It is believed that there is an interaction between particles and silicone drops in the liquor and that this interaction is important for both disposition morphology end of the components on the tissues as for the attributes tactile treated tissues.

It is also believed that during drying, the particles improve the degree and uniformity of the extent of the silicone resulting in better and more uniform lubrication. This leads to a smooth uniform touch throughout the garment. The drops of silicone mixtures without particles are less substantial for the fibers, and during drying a coalescence can occur of the drops resulting in a poor distribution to what length of the garment, which provides softness in the form of "greasy" patches.

A particulate material Particularly preferred (b) is a colloidal silica. A material Particularly suitable is Ludox SP532-10519, 50 nm polydispersed cationic silica (from Grace Davison).

Silicones

The mixture containing aminosilicone (c) is characterized by both its composition and its range of particle sizes

The range of droplet sizes of the mixture containing aminosilicone is preferably 5 to 15 \ mum. It is believed that this range of sizes provides a excellent combination of deposition and dispersion on the substratum.

They are suitable silicones with amino functionality for use in the mixture those with a mole percentage of amino functionality in the range of 0.5 to 2.5, for example "Dow Corning 2-8566 "(DC8566), available in the market in Dow Corning as a thermal protection agent for the hair as well as DC Q2-8220 available in the market in Dow Corning as a conditioning additive.

The mixture containing aminosilicone comprises both silicone and aminosilicone. The silicone is present in a excess weight with respect to aminosilicone. Weight ratio Between silicone and aminosilicone is in the range of 20: 1 to 3: 1. At low relative levels of aminosilicone, the deposition of the Silicone is deficient and not uniform. At low relative levels Silicone, the touch becomes greasy and flaccid.

More particularly, relationships are preferred by weight of about 9: 1, preferably from 12: 1 to 6: 1 (silicone / aminosilicone). This relationship provides a combination Excellent deposition and tactile sensation.

It is preferred that the silicone component of the Silicone mixture be viscous. More preferably, the silicone must be significantly more viscous than aminosilicone at a shear speed and at a given temperature. It is believed that this influences the viscoelastic properties of the fibers after of treatment However, silicone should not be so viscous Let it become a rubber. Therefore, it is preferable that the viscosity of the silicone is below 800,000 mPa \ cdots.

Preferably, the viscosity of the silicone in The silicone mixture is 100,000 to 600,000 mPac, at a temperature of 25 ° C. Suitable materials include "Dow Corning 200 (R) 300,000 CST ", commercially available at Dow Corning

Preferably, the viscosity of the Aminosilicone in the silicone mixture is less than 5,000 mPa · dots, at a temperature of 25 ° C. The right materials include DCQ8220, DC8566 from Dow Corning, as described previously.

More preferably, the viscosity of the Aminosilicone in the silicone mixture is 1,000 to 5,000 mPa \ cdots.

The mixture containing emulsified aminosilicone preferably it is present in excess weight with respect to the particles. If an insufficient proportion of the mixture is used which contains aminosilicone, textile materials become rigid. The preferred weight ratio between the material in the form of particles (b) and the emulsified mixture (c) is in the range 1: 10-50. Relationships of approximately 1:30. It is believed that at effective levels, the particles are associated with the surface of the emulsified mixture and they form a monolayer that helps the deposition of the emulsion and its stability.

Preparation

The compositions of the present invention are they preferably prepare by separately preparing an emulsion of the silicone components and then combining this emulsion with the components in the form of particles. This premix is later combines with the other components of the product completely formulated

It is convenient to use an emulsifier to stabilize the emulsion of silicone components. The Suitable emulsifiers include non-ionic surfactants, particularly non-ionic ethoxylated alcohol surfactants. The Suitable materials include 3% by weight with respect to the emulsion of non-ionic surfactants (Brij 30/35) and 3% in weight with respect to the emulsion of Pluronic 127.

In Dow Corning an emulsion of silicone and aminosilicone suitable for use in the present invention with serial number DC 18371-140.

Product form

The fully formulated products of according to the present invention they can take the form of liquids and solids and the series of pastes and intermediate gels. They can be in a unit dosage format or be dosed whenever necessary. Solids for being in the form of tablets or various particle shapes and sizes from pellets and granules to powders. Fully formulated products can be homogeneous in as for the composition or components can be segregated to prevent unwanted interactions during storage or use.

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So that the present invention can be understood additionally and better, hereafter described by doing reference to various specific embodiments by way of example. These embodiments are not considered limiting although they illustrate additionally preferred and particular characteristics of the invention.

Examples

The following paragraphs describe the preparation of materials used in the examples.

a) Silicone mix

A silicone mixture emulsion was obtained in Dow Corning as a sample identified by the code number DC 18371-140.

DC 18371-140 is believed to be a Linear PDMS mix with a viscosity of 200,000 / 300,000 mPa \ cdots (Dow Corning DC200 (R) FLUID 300,000 CST) and a aminosilicone (Dow Corning DCQ-8220) with a 150 mPa · viscosity (25 ° C) at a ratio of 9: 1 p / p; stabilized with 3% by weight of Brij 30/35 non-ionic surfactant (of ICI) plus 3% by weight of Pluronic 127 (of BASF).

The average droplet size was 10 µm and The viscosity of the mixture was 240,000 mPa · d at 25 ° C.

b) Preparation of the silica / silicone mixture

The silicone mixing emulsion described previously mixed with Ludox silica particles SP532-10519 (polydispersed cationic silica, size of particles 50 nm, from Grace Davison). No conditions needed special mixes other than temperature stirring ambient (at high temperature silica could gel inside the silicone mixture). The relationships used are provided in the following examples and typical lot size for purposes Experimental was approximately 100 ml.

c) Preparation of the wash liquor

A mixture of silica / silicone (b) was added with agitation to a model base formulation ("BASE") comprising  a liquid detergent composition consisting of a mixture of surfactants LAS (BDA-2), SLES 3EO (BSS-T) and Neodol® 25-7 in one 1: 1: 1 ratio and demineralized water (hardness = 0.5 ppm in the form of CaCO_ {3}). The final dosage of surfactant by washing was of 1 g / l and the pH of 8. When necessary, the pH was adjusted with Borax (STB).

Example 1 Washing experiments (soft test by a jury)

In a model wash (Linitest®) they were washed Plush samples (fabric weight 14 g) in the "BASE" liquor described above at a weight ratio between garment and liquor of 1: 8.

Two levels of mixing addition of silicone / silica with respect to tissue weight (rpt): 0.2% rpt and 0.4% rpt. The samples were washed at 40 ° C for 45 minutes and then they were clarified twice (for 10 minutes in each of the rinsed) with demineralized water. For reference, the Plush samples were washed in the silicone mixture alone (0.2% rpt) in the presence of the detergent base and in the presence of the base alone.

After washing and drying, the clothes are conditioned at a relative humidity of 65% and 20 ° C for 24 hours and its softness properties were evaluated by trials with a trained and untrained jury.

TABLE 1 Results of the softness test after washing through a jury

one

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The results shown in table 1 are obtained at an addition level of 0.2% rpt with the jury trained. The same trends were obtained in the experiments with 0.4% rpt.

Rehearsals with the trained jury and the trials with the untrained jury demonstrated the following: a beneficial effect of softness on the plush samples at two applied ratios of the silicone / silica mixing system (1A - 30: 1 and 1B -1: 2) with respect to items washed only with base (see the first comparative example). This is reflected in the Higher scores for softness. A rigidity and sensation greasy reduced to the two mixing ratios of silicone / silica compared to the softness supplied by the silicone mixture alone (see the second comparative example). This It is reflected in the lower scores.

The wrinkle formation properties of fabrics were evaluated on cotton woven sheets and controls poplin using two techniques: fold recovery angle (CRA) and wrinkle recovery test (WRT).

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Example 2 Washing experiments (Fold Recovery Angle)

Woven cotton sheets were washed (weight of tissue 2.7 g) according to the protocol described in example 1. The effect against the formation of folds of the system was evaluated silicone / silica mixture at different ratios: (30/1, 3/1, 1/2) and the silicone mixture alone at an addition level of 0.2% rpt.

After washing and drying in series, the clothes were ironed, conditioned to a relative humidity of 65% and at 20 ° C for 24 hours and its recovery angle was measured of folds (CRA). This was done according to AATCC 66-1990 through:

a) the formation of folds in the garment of 5 cm x 2.5 cm for one minute under a load of 1 kg,

b) the release of the garment and the unfolding the fold, and

c) measuring the angle of recovery of the fold one minute after releasing the folded garment.

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In comparison with the samples treated in the base alone, the silicone mixture alone provided an effect against the folds less than 15%, that is, a minor increase of 15% in the value of CRA.

The examples of the present invention using silicone / silica mixture (1: 2 and 3: 1) provided an improvement of 25% in the value of CRA compared to treated samples only with base. The silicone / silica mixture at a ratio of 30: 1 provided a 35% improvement compared to samples treated only with base.

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Example 3 Impregnation experiments (recovery test for wrinkles)

In this example a recovery test was used of wrinkles (WRT) to compare a number of technologies that believes that they provide a better recovery after training of wrinkles A Werner Mathis AG foulard was used to remove the excess fluid from the controls by compression between two rubber cylinders The pressure applied to the tissue was selected by the user.

This method was used to apply an amount. Known chemical treatment to garments. The solutions of assay were prepared (concentration = the desired rpt percentage) and they stabilized overnight in a bank of cylinders. He general principle is that the tissue is soaked in a solution of known composition and then compressed between the cylinders of the foulard so that it retains twice its original weight in solution - the so-called "100% uptake". Therefore it is possible to calculate the amount of composition in the tissue given the concentration of the starting solution.

Each test control was weighed (W1) and then soaked in the test solution. The control was then compressed between the Werner Mathis AG foulard cylinders to a weight = (W1 x 2). The control subjected to impregnation was then allowed to dry at a controlled temperature (T) and relative humidity (RH) (20 ° C / 65% RH) for 24 hours and then reweighed (W2). (W2-W1) = weight of additive on the tissue from which the
% rpt.

All treatments were impregnated on a cotton poplin without resin at 0.5% rpt. The treated tissues were preconditioned at 85% RH before the formation of folds by being packaged and sealed in polyethylene bags in an environmental chamber. Fold recovery was allowed at 65% RH. The controls were folded in a Wrinkle Recovery Tester model 155 (supplied by James H Heal & Co Ltd.) so that the plot direction was vertical. The tissue was then compressed (wrinkled) without using an additional weight for 8 minutes. Images of the controls will be taken after 10 minutes and 24 hours of recovery. A scale (the "U" scale) covering a broad spectrum of wrinkles (0 = no wrinkles-flat and 10 = very wrinkled) has been used to distinguish wrinkles. Compared to the conventional AATCC128 scale, which shows a rather flat insensitive region at a score of 3, the new U scale allows to distinguish between the intensity of wrinkles around this region. Table 2 shown below indicates the scores obtained from the
wrinkles

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TABLE 2 Wrinkle scores (the lower the better score is the result)

2

For the results provided in table 2 it can be seen that the silicone / silica mixing system provided lower wrinkle score than the other strategies indicated. The silicone / silica mixing technology showed the best score anti-wrinkle after 10 minutes and 24 hours of recovery.

Example 4 Tissue deterioration

The deterioration of blue denim was evaluated (from Abakhan, Mostyn) impregnated with 0.2% rpt of the mixing system silicone / silica (30: 1) by means of the SEM analysis of the tissue surface and friction coefficient measurement tissue-tissue using the Eldredge® tribometer. This it was compared with the deterioration of untreated denim after 100 cycles

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Surface friction measured in conditions wet (wash liquor, pH 10) for treated denim With the silicone / silica mixing system it is significantly less than the friction of the untreated garment at all friction conditions mentioned above. The ones were obtained following results:

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TABLE 3 Friction measurements (the lower the score better is the result)

3

SEM images showed fewer lesions superficial in the tissues treated with the mixture of silicone / silica compared to untreated tissues.

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Example 5 Microscopic studies

An SEM location was performed and SEM-Si optics using a probe microanalyzer electronics (EPMA) in cotton fibers treated with mixtures of silica / silicone mixture and with the silicone mixture alone. When the mixture is used alone there is a deposition in the form of patches on Cotton fibers In the presence of silica, the deposition is much more uniform.

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Example 6 Tension / strain measurements on a single fiber

Stress / strain tests were used and Diastron® tension / relaxation to measure the effect of the system silica / silicone mixture on a single cotton fiber. He Silica / silicone mixture treatment showed a measurable effect of stiffness over the fiber.

Example 7 Interactions between skin and tissue

Both blood flow and blood flow were measured. itchy skin response to histamine exposure to sheet-shaped cotton fabrics treated with the system silicone / silica mixture. The silicone / silica mixing system shows a low blood flow response to induced abrasion by tissue, and no hives / itching response to exposure With histamine

Claims (8)

1. An aqueous liquor for the treatment of textile materials suitable for use in a washing process of domestic laundry, comprising: a) 0.1-10 g / l of a surfactant detersive, b) 0.001-1 g / l of a material positively charged, in the form of particles, which has a size of 5-200 nm particles, and c) 0.001-1 g / l of a mixture of emulsified, water dispersible silicone, comprising both silicone as at least one aminosilicone, the ratio being in weight between silicone and aminosilicone in the range of 20: 1 to 3: 1 and said silicone mixture having a droplet size of 5-20 micrometers 2. A liquor according to claim 1, in which the particulate material (b) is a silica colloidal 3. A liquor according to claim 1, in which the weight ratio between the material in the form of particles (b) and the emulsified mixture (c) is in the range 1: 10-50. 4. A liquor according to claim 2, in which the viscosity of the silicone in the silicone mixture is from 100,000 to 600,000 mPa \ cdots. 5. A liquor according to claim 2, in which the viscosity of the aminosilicone in the mixture of Silicone is 1,000 to 5,000 mPa \ cdots. 6. A liquor according to claim 1, wherein the surfactant comprises an anionic surfactant. 7. A concentrate for dilution to form the liquor of any preceding claim, said said concentrated more than 10% by weight of surfactant. 8. Use of a liquor according to any previous claim in the washing step of a process of laundry wash for clothing.