DK154781B - NON-TOXIC POWDER PREPARATION AND PROCEDURES FOR PREPARING THEREOF AND PROCEDURE FOR CLEANING LARGE TEXTILES WHEN USING IT - Google Patents

Description

in

DK 154781 B

The present invention relates to a non-toxic powder-based cleaning agent for fast and gentle cleaning of carpets, upholstery and other large-surface textile coatings.

5 In situ cleaning of carpets, rugs and upholstery upholstered in textile materials raises considerable practical difficulties.

The use of classical stain removers and cleaners, which are in the form of anhydrous or aqueous liquids or foam, actually exhibits the major disadvantages.

During the use of these types of products, more or less complete, in-depth impregnation of some or all of the fibers constituting the treated textile material cannot be avoided, impregnation which always results in some migration or some leaching of dyes and of finishing agents. as well as formation of aureols or sometimes even a shrinkage or felting of the treated textile material.

Among other things, the classic liquid detergents, which generally contain surfactants, after drying generally leave residues of the surfactants on the fibers, giving the textile material a glossy appearance and an extended tendency to repaint.

Furthermore, the drying time of the fibers, which are profoundly impregnated with liquid, is always very long, which is another disadvantage of using such products, especially on carpets affixed to narrow passages.

The present invention provides a new cleaning agent for carpets and furniture fabrics, which agent does not show the disadvantages described above and faster than the previously known products leads to a better cleaning of .2

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different way soiled textile surfaces.

Powdered cleaning agents for textile maintenance are already known. Thus, French Patent No. 1,321,148 discloses a urea-formaldehyde resin powder impregnated with a mixture of carbon tetrachloride, trichloroethylene and gasoline. Such a product can only be applied in places to grease stains and does not show any cleaning ability against more water-soluble stains.

Other powdery cleansers consisting of a powdery macromolecular synthetic substance such as polyurethane resins, polystyrenes, polyethylenes, polypropylenes, polyvinyl compounds, acrylic compounds or the like, which are impregnated with anhydrous or aqueous solvent mixtures are described in French Patent Specifications. 2,015,972, 2,163,692 and 2,240,287, in German Patent Application No. 2,021,677 as well as in British Patent Specification No. 1,215,972.

However, none of these products is able to ensure a completely satisfactory cleaning of the various 20 possible types of dirt or to give the treated textile a lasting new look.

The previously known powdered products actually have a poorer cleaning ability than the liquid products and have the disadvantage, among other things, that they are later difficult to remove completely from the textile material, since they tend to adhere to and remain adhered to the surface thereof.

According to the present invention, these disadvantages are remedied by the provision of a new large-surface textile garment cleaner which is characterized in that it contains the following combination (A) + (B): 3

DK 154781 B

(A) 30 to 70 parts by weight - of a liquid aqueous solvent mixture containing: (a) 15 to 90% by weight of water, (b) 10 to 85% by weight of an organic solvent 5, or of a mixture of organic solvents selected from : (oc) one or more terpenic hydrocarbons are liquid at 20 ° C and distill between 150 ° C and 250 ° C at atmospheric pressure, 10 (β) mixtures of terpenic solvents (oc) and of aliphatic hydrocarbons which are liquid at 20 ° C and distilling between 90 and 300 ° C at atmospheric pressure, (Y) mixtures of aliphatic hydrocarbons as specified under (β) and one or more oxygen containing solvents selected from monoalkyl and dialkyl ethers of ethylene glycol, wherein the alkyl group contains 1 to 5 carbon atoms, the monoacetate of ethylene glycol and the monoacetate of the above monoalkyl ethers, 20 (B) 30 to 70 parts by weight of a powdered absorber, the carrier where the mean size of the particles in the non-impregnated state is between 5 µ and 1000 μ which carrier is selected from: (i) powders of woody cellular vegetable materials, (ii) starch powders, (iii) husks of husk. and (iiii) binary and temporal mixtures of constituents (i), (ii) and (iiii), all of which are calculated on the total weight of the aqueous mixture of solvents (A).

Leg aqueous solvent mixture (A) according to the invention

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The composition generally contains 30 to 89 and preferably 40 to 60% by weight water and from 11 to 60% by weight of an organic solvent selected from the above-defined solvents (a) and (β). This amount of water imparts an excellent cleaning ability to water-soluble stains according to the invention, in particular a large number of stains due to food products.

The surfactants of the invention may contain various additives, such as fragrances, antistatic agents, anti-precipitating agents, optical clarifiers, pigments and, above all, surfactants, microbicides, fungicides and antioxidants, in an amount of 0 to 10% by weight.

These additives can be readily soluble in the aqueous phase (a) or in the dailipophilic phase of the mixture of components (b) of the solvent mixture (A). They may also consist of insoluble particles dispersed homogeneously in the carrier (B).

These additives are generally dissolved in one or the other of constituents (a) or (b) of the mixture (a) or admixed in the carrier (B). They are generally present in amounts of the order of 0.05 to 10 and preferably 0.05 to 5 weight- $, calculated either in relation to the total weight of (A) or to the total weight of (B).

The powdery cleansers of the invention contain, completely and uniformly absorbed (adsorbed) in (on) a powdered carrier, a liquid aqueous mixture (A) of the indicated solvents which allows a very effective cleaning for virtually all ordinary types of stain. utes and dirt.

According to the invention, component (b) in this mixture (A) contains an organic solvent or a mixture of organic solvents selected from (a) one or more terpenic hydrocarbons which are liquid at 20 ° C and distill between 150 and 250 ° C at atmospheric pressure, 5 (β) mixtures of terpenic solvents (a) and of aliphatic hydrocarbons which are liquid at 20 ° C and distill between 90 and 300 ° C at atmospheric pressure, (Y) mixtures of aliphatic hydrocarbons as defined 10 "under (β) and of one or more oxygen-containing solvents selected from monoalkyl and dialkyl ethers of ethylene glycol, wherein the alkyl group contains 1 to 5 carbon atoms, the monoacetate of ethylene glycol and the monoacetates of the above monoalkyl ethers.

A preferred cleaning agent according to the invention is one in which the mixture (A) consists essentially of 30 to 88.9% by weight water and of a mixture (β 2) consisting essentially of: (Z) 10 to 50% by weight of an aliphatic hydrocarbon or of a mixture of aliphatic 20 hydrocarbons which at atmospheric pressure distils between 90 and 300 ° C and whose evaporation rate at 20 ° C, measured in relation to diethyl ether, is between 10 and 100, ( Z-1) 1 to 10% by weight of a terpenic solvent or of a mixture of terpenic solvents which, at atmospheric pressure, distils between 150 and 250 ° C and whose evaporation rate at 20 ° C, measured in relation to diethyl ether , is between 20 and 80, (C ·) 0.05 to 5% by weight of a surfactant detergent and (C2) 0.05 to 5% by weight of a bactericidal and / or fungicidal preservative, all 30 quantities being indicated. in relation to the total weight of (A).

the component (Z) in the mixture (β - ^) advantageously consists of a crude oil distillation fraction which advantageously distills between 130 and 250 ° C under normal atmospheric pressure. Such a solvent can e.g. be mineral turpentine, a petroleum distillation fraction which distils between '6

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EA. 130 and 210 ° C, or any other volatile mineral oil.

However, this component may also consist of one or more synthetic alkanes whose boiling points are within the limits specified above, such as decane and / or dodecane.

The evaporation rate of this component at 20 ° C, measured relative to the time required to evaporate the same volume of diethyl ether, using this time as a unit, may be between 10 and 100, preferably between 20 and 80 (with the evaporation rate of diethyl ether being 1). This evaporation number is measured by depositing 0.5 cm 2 of the hydrocarbon on a filter paper by means of a pipette and measuring the time required for its complete evaporation while simultaneously conducting a diethyl ether comparison test.

The terpenic solvent component (a) is selected from the indicated terpenic hydrocarbons, such as the gross formula terpenic hydrocarbons and optionally among alcohols, aldehydes and esters derived from these terpenes. A fundamental feature of the terpenic solvent (oc) is its volatility: at ordinary pressure its boiling point is preferably between 150 and 250 ° C, especially between 150 and 200 ° C, its evaporation rate at room temperature (20 ° C) is preferably between 20 ° C. and 80 (relative to diethyl ether whose evaporation number is 1), especially between 20 and 50.

The terpenic solvent (a) may e.g. are selected from the pine (boiling point 157-166 ° C), caren (boiling point 165 ° 0), sabine (boiling point 165 ° C), myrrh (boiling point 167 ° C), menthen (boiling point 168 ° 0), phellandren (boiling point 30) 171-175 ° C), oximine (boiling point 177 ° C), sylvestrene (boiling point 177 ° C), limonene (boiling point 177 ° C), dipenten (boiling point 178 ° C), terpine (boiling point 176-183 ° 0), terpinol (boiling point 184 ° C), terpinol (boiling point 168 ° C), .7

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which is a mixture of terpineols, terpinol, terpine and dipentene; of these terpenic hydrocarbons, in particular, the dipentene and especially limonene as well as natural plant extracts obtained by pressing or distillation are preferred and contain a high proportion of these terpenic solvents.

The terpenic solvent (a), on the other hand, may consist of or contain terpenic alcohols of the gross formulas C ^ qH₂O and C- qH₂ qO having the evaporation characteristics given above.

Such alcohols are e.g. ocimenol (boiling point 196 ° C), linalol (boiling point 198 ° C), terpinenols (boiling point 210-212 ° C), myrcenol (boiling point 213 ° C), methyl geraniol (boiling point 216 ° C), myrtenol (boiling point 224 ° C), citronellol (boiling point 225 ° C), nerol (boiling point 227 ° C) or geraniol (boiling point 230 ° C).

The terpenic aldehydes (a) may e.g. are selected from citral (boiling point 214-228 ° C), ethyl citral, isocycloxytral, phellandral (boiling point 174 ° C), citronellal (boiling point 206 ° C), hydroxycitronellal or dihydrocitronellal.

The terpenic esters which may comprise the solvent (a) in whole or in part are e.g. formates, acetates and propionates of menthyl, citronellyl, bomyl, isobomyl, anisyl, dihydroterpinyl or the like having the above-mentioned general physical characteristics.

These compounds are advantageously introduced into the present purifying agents in the form of whole essences or of extracts obtained by distillation or by pressing natural products containing a greater amount of terpenic products.

The cleaning agents in question may, in addition to components (b) '8

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in amounts generally not exceeding 30% by weight of (A), optionally also containing other complementary solvent components of the most different solvent species: cycloaliphatic hydrocarbons, halogenated 5 aliphatic hydrocarbons, oxygen-containing heterocyclic compounds, cycloaliphatic and araliphatic alcohols, and non-hydroxyl-substituted aliphatic ethers, aliphatic, cycloaliphatic and araliphatic esters, aliphatic, cycloaliphatic, terpenic and aromatic ketones, and the various possible mixtures of these solvents.

Cycloaliphatic hydrocarbons include, in particular, cyclohexane, methylcyclohexane, tetraline and decaline.

The halogenated aliphatic hydrocarbons may be selected from carbon tetrachloride, methylene chloride, chloroform, dichloro-1,1-ethane, dichloro-1,2-ethane, dichloro-1,1-ethylene, dichloro-1,2-ethylene, triehloro-1, 1,1-ethane, trichloro-1,1,2-ethane, trichlorethylene, tetrachloro-1,1,2,2-ethane, tetrachlorethylene, pentachloroethane, trichloro-trifluoroethane and perfluoroethane.

The aliphatic hydroxyl compounds may e.g. are selected from ethanol, n-propanol, 2-propanol, butanols, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol-1,2, propylene glycol-1,3, ethers of aliphatic diols and alcohols such as mono- and dimethyl-, ethyl and propyl ethers of ethylene glycol, diethylene glycol or propylene glycol, or butoxyethanol.

The araliphatic hydroxyl compounds which can be used as complementary solvents are e.g. phenoxy-ethanol or phenoxypropanol.

The water constitutes the second mandatory component (a) of the solvent mixture (A). This component ensures easy-

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9 equals an effective cleaning for stains and dirt, which are especially water-soluble ..

Components (a) and (b) of the solvent mixture (A) are generally immiscible with water in the amounts used in the detergents of the invention. This is not important as they in turn impregnate the powdery absorbent carrier (B) to form a homogeneous-looking microscopically heterogeneous mixture.

The solvent, solvent mixture (β) present in the present cleaning agents has an unexpected, synergetic cleaning and staining effect on most of the particularly oil-soluble stains and dirt. The simultaneous presence in the present purifier of significant quantities of water, as defined above, significantly enhances the activity spectrum of the solvent mixture (β) and leads to a temporary mixture of the solvent components (a) + (β) with near-universal staining properties. a relatively high evaporation rate, despite the large amounts of water it contains.

For example, an excellent detergent according to the invention is one in which the solvent mixture (A) consists of: (a) approx. 2 to 7 and preferably 5 to 7 parts by weight of water and (β) approx. 1 to 5 and preferably 3 to 5 parts by weight of mineral turpentine and approx. 0.5 to 2 parts by weight of limonene or terpenes from oranges (a).

Dissolving in the solvent mixture a small amount of surfactant detergent which, although not absolutely necessary, is nevertheless advantageous, as it allows a considerable increase in the purification effect of the present detergent. This surfactant may be of anionic, nonionic, cationic or amphoteric nature.

10

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It is generally present in the solvent in amounts of the order of 0.05 to 10 weight, and preferably of the order of 0.05 to 5 weight- $, calculated in pre-5 to the total weight of the component (a).

Advantageously, a surfactant which is particularly hydrophilic or a mixture of lipophilic and / or hydrophilic surfactants which are preferably soluble in water is selected.

10 surfactants with these properties are found in most of the chemical classes of surfactants.

Among these, the anionic surfactants are particularly advantageous to use: it is e.g. alkyl sulfonates, alkyl benzene sulfonates, sulfonic acid esters, fatty alcohol sulfates, condensation products of an alkylene oxide with higher molecular weight fatty alcohols, with fatty acid amides or with propylene glycols having a molecular weight of between 900 and 4000. Anionic surfactants in the form of lithium salts are particularly preferred.

Advantageously, the present cleaning agents contain a preservative which is capable of protecting the finished product from microbial or fungal degradation. The preservative is advantageously introduced into the aqueous phase (A): it can be selected from all the known microbicides: substances such as sodium o-phenylphenate, hexylresorcinol, methyl, propyl and benzyl-p-hydroxybenzoate, p-chloro -m-cresol, o-, m- and p-hydroxybenzoate of triethanolamine, dichloroacetamide and the like.

They may also contain antioxidants such as butyl hydroxyanisole, butyl hydroxytoluene, citric acid and mixtures of these products.

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11

The basic characteristic features of the powdery vein (B) are its absorbency and the average size of the particles of which it consists.

The powdered carrier (B) is advantageously capable of absorbing at least 80 to 300% by weight of the liquid (A), these amounts being calculated on the weight of the non-impregnated carrier.

The average size of the particles from which it is formed is preferably between 3 and 1000 µ, and more preferably between 30 and 300 µ.

Numerous powdered carriers already disclosed in the art which upon absorption of the solvent mixture (A) of the invention may constitute excellent cleansers.

Such powdered carriers are e.g. mineral powders, e.g. those of mineral oxides, or natural or synthetic alkali metal, alkaline earth metal and ammonium salts, 13 such as aluminum hydroxide, silica, silicates, clay soils, glass microspheres, carbonates, hydrogen carbonates, such as ammonium hydrogen carbonate, borates, chlorides, phosphates, citrates and various sulfates.

They are also various polymeric or copolymeric resins and solid, powdery, synthetic polycondensation products derived from ethylene, propylene, styrene, aerylates, aerylonitrile, alkadiene, amides, maleic anhydride, and urea-formaldehyde, phenol-formaldehyde and polyurethane resins.

They are also various powdered synthetic cellulose materials such as regenerated cellulose and cellulose acetates.

However, the preferred carrier for the present cleansers is selected from natural organics of vegetable origin and especially from powders of woody substances.

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12 flour of peeled grain and starch powder.

In particular, the carrier (B) of the detergents according to the invention may consist entirely of one or more of these materials of vegetable origin, provided that the granuloinetry of this material 5 and its absorbency correspond to the above-mentioned fundamental characteristics.

The vegetable origin material (s) which can be used as a carrier (B) is selected e.g. among wood flour, cork flour, cereal flour, powdered from pickled corn cobs, brewery-10 mask, cereal flour, such as wheat, corn, tapioca, rice, rye, soy, barley and oats, and starch powders extracted from potato, mushroom, oats, wheat, green peas, beans rice, corn, buckwheat, rye, barley etc.

One. carrier (B) which is particularly absorbent, exhibits excellent mechanical properties and ensures optimum cleaning efficiency with the cleaning agent of the invention? contains: (i) Approx. 40 to 80% by weight of woody vegetable matter, preferably with cellular structure; which is capable of absorbing at least $ 100 of its weight in the dry state of the solvent mixture (A), (Li) approx. 5 to 20% by weight of a grain meal and (Lii) approx. 15 to 40% by weight of a starch powder, all of the weight amounts being calculated on the total weight of the carrier (B).

The preferred vegetable wood-containing substances are those which at one time have a high hardness and preferably cellular structure, and which allow reversible absorption or adsorption of significant amounts of liquid.

A particularly preferred woody material in the compositions of the invention is a powder of pickled corn cobs: it has a good hardness and a cellular structure which at one time allows a good absorption of the liquid (A)

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13 and a rapid release thereof on the fiber during the cleaning operation.

The average size of the particles of the wood-containing material (a) is advantageously between 100 and 300 µ, with the ideal 5 medium dimensions being between 150 and 200 µ.

Namely, during the cleaning operation, the thus-sized particles of the vegetable wood-containing material exert a mechanical rubbing action on the fiber, which rubbing action, without destroying the fiber surface, facilitates the release of the dirt solubilized by one of the components (a) or (b) of the solvent mixture delivered of the carrier (B) on the fiber, and then immediately absorbed by that carrier (B).

The presence in the carrier (B) of a cereal flour, in which the mean size of the particles is also advantageously between 3 and 1000 µ and preferably between ca. 100 and 300 µ; effectively completes the properties of the present cleaner by facilitating a rapid and homogeneous distribution over the entire textile surface and by significantly increasing the ease with which the powder resting on the fiber after evaporation of the solvent mixture can be removed from the fiber.

The ideal average granulometry of the cereal flour particles is preferably within the limits of 125 "to 280 µ. Among the cereal flour species listed above are rice powders of particular interest in the cleaners of the invention due to the hardness, density and rounded shape of its particles.

The cleaning agents according to the invention also advantageously contain starch which, due to the very special granular structure and the average dimensions of these particles of between 30 and 25Ο μ, imparts excellent mechanical properties, fluidity and storage properties and sliding properties to the fibers, without any

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14 way to strengthen its adhesion to the textile materials.

The optimum mean granulometry of the starch powder used in the cleaning agents in question is preferably between 40 and 200 µ.

The powdered carrier (B) of the invention has the advantage of being able to absorb the entire solvent mixture (A) without losing its powdery, dry or semi-dry appearance and while fully maintaining excellent fluidity properties, even after very long storage.

10 The owner also has the advantage that it does not clog vacuum cleaner bags and above all does not cause breakage of these.

The powdered carrier (B) has, inter alia, the advantage of absorbing several solvent components which are not miscible, and then, when the absorbent is contacted with a textile material, to be able to release most of its solvent components, absorb the dirt and dry, thereby transferring to a powder in which the various particles does not in any way adhere to the textile fibers and thus can be easily removed by simple brushing or by means of a medium power vacuum cleaner.

The preparation of the detergents according to the invention is carried out by simple impregnation and homogenization of the entire powdery absorbent mixture (B) by successively adding small amounts of each solvent component.

Preferably, the powdered carrier (B) is first impregnated with the homogeneous mixture of the solvents (b) and then when the entire amount of the solvents (b) is uniformly distributed in this powder, the water and successively the rest of the ingredients are added in small amounts. until the powdered mixture is completely homogenized.

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15

After sieving, a dry, semi-dry or moist powder is obtained which does not deposit dust when spreading it on a textile surface and which, after drying, can be removed from this carpet by brushing or by vacuuming without leaving 5 dust.

For cleaning a textile surface or a rug by means of a composition according to the invention, uniformly, approx. 10 to 50 S5, preferably 25 to 40 g, of the product 2 per ml. m of the textile surface, and the product is then rubbed quickly over the entire carpet surface by brushing it with a stiff brush. After drying, the composition does not adhere to the carpet at all and can be immediately and easily sucked up, leaving no trace, using a medium strength vacuum cleaner; the carpet thus treated has a clean, airy and new look.

The use of a composition according to the invention has numerous advantages. It allows efficient and quick cleaning of a carpet or carpet without in-depth wetting.

It also allows frequent repetition of the cleaning operations without damaging the carpet or runner thus treated.

Complete drying takes place very quickly, generally in 20 to 30 minutes. Immediately after application of the product, it is possible to walk on the carpet without risk of destroying it and without risk of counteracting the effect of the product. The drying is very fast; because the powdered composition of the invention in no way soaks the substrate, but only moistens a very small portion of the fibers which are cleaned, while the drying is always long lasting when the cleaning 30 is carried out with the various known products.

Actually, the cleaning agents in question release only the amounts of solvent on the fibers that are strictly necessary to loosen the dirt.

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16

Another advantage when using a composition according to the invention lies in the fact that one does not risk the formation of anreoles or the bleaching of colors, as is very often the case with compositions in the form of solutions or foams. In addition, the dust and dirt released from the fibers during treatment are immediately absorbed by the powdered carrier, and there is no risk of it tearing loose or being deposited on the carpet to eventually give it a matte and pale appearance.

10 For example, the detergent according to the invention can advantageously be used for cleaning delicate textile materials without any damage to them.

On the other hand, the present compositions allow a very easy removal of oil-soluble stains, which are the most common and the most sticky and which essentially remove aqueous shampoos only partially.

After treatment with a composition according to the invention, the carpet is given a lasting clean and airy appearance. It shows a similar resistance to dirt as a new carpet, which is not the case with carpets treated with an aqueous shampoo and especially with such a surfactant containing agent.

An important feature of the present compositions is that they preferably contain one or more detergents or surfactants which, after cleaning, leave no static or sticky residue on the fiber.

The use of the compositions in question is among other things especially advantageous because it does not require a special device.

It is suitable for all types of vegetable, animal or synthetic fibers such as wool, cotton, jute, silk, regenerated cellulose, acetate rayon, polyamide, polyester, polyolefin, polyvinylidene chloride and polyacrylic fibers and mixtures of these fibers and for all types of dyes of these fibers.

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17

The compositions of the invention are particularly suitable for the maintenance of any type of rug, such as tufted rugs, needled rugs and especially long-pile rugs (houclé), which are always very difficult to maintain with liquid or foamy compositions, as these products tend to glue the wires together.

In the following examples, parts by weight and percent by weight, unless otherwise stated, are "calculated relative to the total weight of the composition.

Examples 1-9

600 g of each of the compositions listed in Table 1 are prepared (the figures indicated are by weight) by mixing for 10 minutes in a powder mixer of the powdered constituents which form the solid support in the formulation. The total amount of solvent (b) and then the aqueous component (a) is then added, preferably during milling. The mixing is continued for 1 hour.

label 1

Composition__125456789 20 Wood flour 30 26

Brewery mask 15 LO

Powdered urea-formaldehyde resin 3 25 Bran 25

Cork powder 15

Powdered pickled corn cobs (1) 30 30 ^ 25 27 30 Ice powder 8 7 2P '10 10

Eugmel 8

Pearl barley 2 7

Corn starch (2) 14 15 26 22

Potato starch 22___21 _ 5 I j

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18

Table 1 (continued)

Composition, 1 2 5 4 5 6 7) 8 9

Mine. turpentine (a) 19 20 19 19 20 15 20 19 20

Isopropyl Glycol 5 5 Dipenten 3.5 2.5 2 5

Limonene 3.5 10 3¾ 5;

Terpenes from oranges (b). 3.5 1.5 4

Perfume 0.5 10 Water 24 24 24 24-; 15.5 2 ^ 5 30 24 29.5

Chloroacetamide (c) 0.3 0.2 0.3 0.3 0.5 Q3 1 0.3

Ultravon ¥ (d) 1.2 1.2 1.2 1.2 1.5 1, 2 4 1.2 0.5

Dirt-repellent 0.2 15 Antistatic agent _______ L_J__0 * 3 (1) Product derived from the woody ring, which is a component of the cylindrical cored portion of corn cobs, by grinding and calibrating through a sieve that leaves 20 particles of 170 µm diameter including passports.

(2) Powdered product in which 93% of the particles have a diameter of between 40 and 80 µ and the rest of the particles a diameter of up to 200 µ.

(A) Aliphatic carbohydrates containing 5% aromatic hydrocarbons.

Distillation range: 149 to 195 ° C ·

Steam evaporation rate relative to diethyl ether: 21 (b) Terpenic products obtained by extraction of orange peel oil; this solvent consists mainly of limonene.

Distillation range: 170 to 185 ° C.

Evaporation rates in relation to diethyl ether: 49.

(c) Di chloroacetamide of the formula CHCC -CO-KH ^.

(D) The disodium salt of heptadecyl-2-benzimidazole disulfonic acid prepared from fa. CIBA-GEIGX AG, Basel, Switzerland.

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19

Experiment I

Comparison of the cleanability of the products described in the present invention with the substrate used by known liquid shampoos and aerosol products. The 5 Fe substrate consists of a beige colored, needlecloth with vertical loops. The fibers are composed of a mixture of 60% polyamide and 40% polyester.

The back consists of a styrene butadiene foam.

The thickness of this needled rug is 6 mm and its weight approx.

10 100 g / ml m ^.

The substrates used are squares with 10 cm edge length.

The tests consist of dirtying the substrates with standard dirt, and then cleaning them with a suitable product, the removal of the cleaning product 13 being carried out by means of a vacuum cleaner.

The process is repeated six times in a row.

This allows at the same time to measure the cleaning ability of the products and to assess their possible tendency to grease the textile material by leaving detergents 20 which are not completely removed with the vacuum cleaner on the fibers.

The soiling of the substrates is carried out by means of a rotary drum using 1 g of standard hub for 10 substrates of 10 x 10 cm.

The standard hub is ground and sieved to 100 μ.

Its composition is as follows (% by weight): 39.0% soil 17.7% cement 18.0% silica

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20 0.5% carbon black 0.3% ferric oxide 2.5% Vaseline oil with 5.1 degree viscosity Angels at 50 ° C 18.0% clay soil 2.0% stearic acid 2.0% oleic acid.

The cleaning ability of each product is assessed by performing photometric measurements with the help of Dr. Langes photoelectric 10 gloss meter, manufactured by fa. ERICHSM, Hemer-Sundwig, (West Germany).

Thus, the product described in Example 4 is compared with 5 products A, B, C, D and E, which are currently the most representative on the French market: 3 liquid shampoos 15 and 2 aerosol products for cleaning runners.

The reflectometric values thus obtained are summarized in Table II below:

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21

Table II

Reflectometric values

Liquid Liquid Liquid Product Product Product Product shampoo shampoo shampoo in aerosol according to 5 ABC sol D E example J______4 t

Initial sample 91.7 92.1 90.7 go, 7 90, J

After 1st soiling 8l, 0 85.2 84.4 81.5 84.7 83.7

After 1st cleaning * 87.4 87.1 87.4 84.9 $ 5.9 87.2

After the second soiling 8l '° 84.4 81.5 84.7 83.7

After 2nd cleaning 86.7 86.0 87.5 86.1 86.6 88.6 15 After 3 · soiling 8 °, 7 81.2 8l, 4 81.2, 79.1 80.7

After 3 · cleaning 85.2 84.9 95.1 84.0 $ 4.1 87.4

After 4th soiling 79.2 78.9 80.3 79.0 76j5 jQ2

After 4th cleaning 83.0 82.8 82.4 79.8 79.4 85 ^ 4

After 5 · contamination 78.6 78.4 78.5 75.7 75.2 jst2 25 After 5 * cleaning 82.5. 81.7 81.9 76.8 78.0 84i7

After 6 soiling 76.9 76.5 77.3 71.3 73.0 74.4

After 6th cleaning? 2.7 76.3 83.4

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22 (*) [The quantities of shampoos; used according to the dosages and methods of application recommended by the manufacturers (expressed as the weight amount of the product used for a substrate of 10 x 10 cm):

5 0.50 g of liquid shampoo A

0.25 g of liquid shampoo B 0.25 g of liquid shampoo C 0.35 g of aerosol product D 0.35 g of aerosol product E 0.40 g of product of Example 4.

These results show that the use of a composition according to the invention leads to a final cleaning of the fibers which is more extensive than using known liquid or aerosol products.

13 Study II

Comparison of the drying times of the products of the present invention with the drying times of known liquid shampoos and aerosol products.

A natural colored tufted bouquet blanket of 100% polyamide fibers is used. The back is made of polyvinyl chloride.

2

The thickness is 8 mm and the weight approx. 1875 g per m.

island

The substrates used include a surface of 3 m (rectangles of 2 x 1.5 m).

The products mentioned in Example 1 are used in the dosages recommended by the 25 manufacturers, ie: 2 50 g of liquid shampoo A per day. m surface of the textile substrate, by diluting in 150 g of water, 2 25 g of the liquid shampoo B m surface of the textile substrate, by dilution in 300 g of water,

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23 p 25 g of liquid shampoo C m surface of the textile substrate; by dilution in 175 g of water, 35 g of the aerosol product D per ml. m surface area of the textile backing., when used without rubbing, 2 5 35 g of the aerosol product E per m. m surface of the text substrate when used during rubbing, 40 g of the product of Example 4 per m surface of the textile substrate.

The times required for complete drying of product 10 are given in the tatel III below:

Table III

drying

Eating shampoo A 8 hours

Oily shampoo B 12 hours

Glowing Shampoo G 9 hours 15 Shampoo on aerosol D 1 hour and 30 minutes

Shampoo on aerosol E 3 hours and 30 minutes

Product of Example 4 30 minutes

These results show that the drying time of the product according to the present invention is 3 to 24 times shorter than that of known liquid or aerosol products.

Claims (19)

A non-toxic powder form cleaner for cleaning large textile surfaces, characterized in that it contains the following combination of components 5 (A) and (B): (A) 30 to 70 parts by weight of a liquid aqueous solvent mixture containing: ( (a) 15 to 90% by weight of water, (b) 10 to 85% by weight of an organic solvent or a mixture of organic solvents selected from: (cc) one or more terpenic hydrocarbons: * which are liquid at 20 ° C and distils at between 150 and 250 ° C at atmospheric pressure, 15 (β) mixtures of terpenic solvents (a) and of aliphatic hydrocarbons which are liquid at 20 ° 0 and distill at 90 to 300 ° C at atmospheric pressure, (γ) mixtures of aliphatic hydrocarbons as defined under (β) and of one or more oxygen-containing solvents selected from monoalkyl and dialkyl ethers of ethylene glycol, wherein the alkyl group contains 1 to 5 carbon atoms, the monoacetate of ethylene glycol and monoacetate of said 25 monoalkyl ethers, (B) 30 to 70 parts by weight of a powdered absorbent carrier wherein the mean size of the particles in the non-impregnated state is between about 5 and 1000 µ which carrier is selected from: 50 (i) powders of woody cellular vegetable material, (ii) starch powders, G_ii) peeled cereal flour, and (Liii) binary and ternary mixtures of components (i), 35 ( ii) and (iii), DK 154781 B, all quantities being given relative to the total weight of the aqueous solvent mixture (A). The detergent according to claim 1, characterized in that the mixture (A) consists essentially of: (a) 30 to 89% by weight water, (b) 11 to 60% by weight of an organic solvent or of a mixture of organic solvents selected from: (a) one or more terpenic hydrocarbons which are 10 liquid at 20 ° 0 and distill at 150 to 250 ° C at atmospheric pressure, (β) mixtures of terpenic solvents (a) and aliphatic hydrocarbons which are liquid at 20 ° C and distillate at between 90 and 300 ° C at 15 atmospheric pressure and (c) 0 to 10% by weight of one or more additives and that the particles in the component (B) have an average size of between approx. 5 to 500 µ. Purifier according to claim 2, characterized in that it contains about 0.05 to 10% by weight, calculated in relation to the weight of the liquid (A), of one or more additives (c). A cleaning agent according to any one of claims 1 to 35 k e n characterized in that the mixture (A) consists essentially of 30 to 88.9% by weight of water and of a mixture (β · 2); consisting essentially of: (Z) 10 to 50% by weight of an aliphatic hydrocarbon or a mixture of aliphatic hydrocarbons which distill at atmospheric pressure at between 90 and 300 ° C, 30 and whose evaporation rate at 20 ° C , measured in relation to diethyl ether, is between 10 and 100, (Z 2) 1 to 10% by weight of a terpenic solvent or of a mixture of terpenic solvents which distill at atmospheric pressure at between 150 and 250 ° C. if the evaporation rate at 20 ° G is between 20 and 80, (01) 0.05 to 5% by weight of a surfactant detergent and (C1) 0.05 to 5% by weight of a bactericidal and / or fungicidal agent. 5 cid preservative, all quantities being given in relation to the total weight of (A). Purifier according to claim 4, characterized in that the component (Z) in the "mixture (A) substantially 10" consists of a crude oil distillation fraction having a boiling point of between 150 and 250 ° C. A cleaning agent according to any one of claims 1 to 5? can also be understood that the component (a) in the mixture (A) consists essentially of the limonene. 15 A cleaning agent according to any one of claims 1 to 6, characterized in that the component (a) in the mixture (A) consists essentially of citrus fruit scales. A cleaning agent according to any one of claims 1 to 75 k e n characterized in that the component (a) in the mixture (A) 20. consists essentially of terpenes from orange. Cleaner according to one of claims 1 to 8, characterized in that the mixture (A) consists essentially of: (a) 3 to 7 parts by weight of Water and 25 (β) 1 to 5 parts by weight of mineral turpentine and 0, 5 to 2 parts by weight of limonene (a). Purifier according to one of Claims 1 to 9, characterized in that, as component (c), dissolved in water, it contains 0.05 to 5% by weight, relative to the weight 30 of (A), of sodium or the disodium salt of a 2-alkyl-benzimidazole-sulfonic acid or -disulfonic acid, wherein the alkyl group contains 10 to 20 carbon atoms. Purifier according to claim 10, characterized in that, as component (c), the solvent (A) contains 0.05 to 5% by weight, relative to the weight of (A) of the disodium salt of 2-heptadecyl-henzimidazole acid. disulfonic. Cleaning agent according to one of claims 1 to 11, characterized in that the powdered carrier (B) consists essentially of one or more natural organic materials of vegetable origin, in which the average size 10 of the particles is between 5 and 300 µ. A cleaning agent according to claim 14, characterized in that the woody vegetable substance (i) is a powder of pickled corn cobs. A cleaning agent according to claim 12, characterized in that the carrier (B) consists essentially of a mixture of woody, powdered vegetable materials, of peeled grain flour and of a starch powder. A cleaning agent according to any one of claims 1 to 13, characterized in that the carrier (B) contains: (i) approx. 40 to 80% by weight of one or more woody vegetable materials with cell structure (i), (Li) approx. 15 to 40% by weight of a starch powder (ii) and 20 G 3 to 20% by weight flour of peeled grains of one or more grains (iii), all weight amounts being given in relation to the total weight of (B). Cleaner according to claim 13, characterized in that the powdered carrier (B) consists essentially of particles having an average size of less than 300 µ containing: DK 154781 B (, i) powder of pickled corn cobs, Cii) rice powder and (iii) corn starch. A cleaning agent according to any one of claims 1 to 16, characterized in that it contains from 0.05 to 5% by weight of dichloroacetamide, calculated in relation to the weight of the liquid (A). Method for cleaning large textile surfaces, characterized in that a cleaning agent according to any one of claims 1 to 17 is spread regularly over the textile surface in an amount of 10 to 80 g per minute. m, it evenly spreads over the entire textile surface during rubbing and removes it after 10 to 10 minutes of drying. Process for preparing a detergent according to one of claims 1 to 17, characterized in that in two steps (i) and (ii) an absorbent, powdery carrier (B) is impregnated, in which the mean size of the particles is between approx. 5 to 300 µ, the two steps being carried out in any order, one being that (i) impregnate the carrier (B) or a portion of the carrier (B) 20 regularly with organic solvents (b) each for or in admixture, these solvents optionally containing one or more additives (c), in the dissolved state, and the other consisting in impregnating the carrier (B) or part of the carrier (B) with it on a regular basis. aqueous component (a), optionally containing one or more additives (c) in the dissolved state, and then homogenizing the blend obtained after mixing all the components to obtain a uniform appearance of powder in which the various components are uniformly distributed.