DE2360408A1 - DETERGENT COMPOSITION - Google Patents

Description

PATENT LAWYERS

DR. ING. A. VAN DERWERTH D ¹ R. FRAN Z LE DE RER

²¹ HAMBURG 90 _β MÖNCHEN SO

WlLtTOKFEKFTRSa TEL. (040) 77 OS 61 LUCUE-GRAHN-STR. 2S ■ TEt. (OS 111 4729 47

Munich, December 4, 1973

UNILEVER NV

Burgemeester s'Jacobplein 1, Rotterdam, Netherlands

Detergent composition

The "invention relates to a particularly for washing fine textile goods, detergent composition suitable in particular from wool and synthetic materials.

The term cleaning agents is understood to mean detergents, these can be both soap-free and soap-based.

The washing of fine textiles and woolen items requires Care and the use of special preparations to avoid shrinking, matting and / or bleeding of colors.

Under the conditions currently in use, washing produces wool articles still have a hardness or roughness of the article

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and sometimes felting and / or shrinking and / or Bleeding of colors.

Common laundry detergent compositions known in the art generally include the following Basic components:

10-60% by weight of active detergent, usually

anioni see fabrics;

10-50% by weight of builders, e.g. B. sodium tripolyphosphate} 0-50% by weight of filler electrolytes such as sodium sulfate and sodium chloride; as

minor amounts of other additives such as suspending agents for dirt, brighteners, dyes and fragrances.

Buileans are detergent enhancers or structural substances, In US Pat. No. 3,177 14-9 it has already been proposed a so-called "lubricant" for the wool fibers such as lanolin, mineral oil and fatty alcohols in detergent compositions for Adding wool articles to give the goods resilience and a soft handle. The disadvantage of these known "lubricants" lies in the fact that the required amount to be incorporated into the detergent composition will obviously generally be is very high, this amount according to the information in US Pat. No. 3,177 14-9 in the order of 10-4 C%, based on the dry composition. Since these lubricants are normally insoluble in water, they produce as This results in problems of dispersibility at such high amounts.

Has it been found now? that hydrogenated lanolin is much better Softening effect for woolen articles and delicate textile goods as the previously known lubricant results.

The object of the invention is to create an improved method for washing fine textiles, especially wool textiles,

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which gives the washed textile a noticeably softer one Grip without the resulting matting, shrinking and bleeding of colors.

Furthermore, the creation of an improved detergent ' composition Object of the invention, which is particularly suitable for washing woolen textiles and fine textiles.

The object of the invention can be achieved in that hydrogenated lanolin in the detergent composition as Softener is added for the fibers that are sensitive to washing.

Without a binding, theoretical explanation being given, it is assumed that in the washing liquor, hydrogenated lanolin is rapidly absorbed into wool causing softening of the woolen items, a phenomenon those for woolen items washed under conventional conditions cannot be observed.

The detergent composition according to the invention mainly comprises an anionic and / or nonionic surfactant Agents, builders and a hydrogenated lanolin. As previously described, the effect of hydrogenated lanolin is far better than that of the previously known lubricants, and therefore a smaller amount than 10%, based on the total, dry composition, generally sufficient to achieve the desired effect. The preferred amounts of the Basic ingredients make up about 10-65% by weight of the surfactant By means of about 10-50% by weight of the builder and about 0.5-8% by weight of the hydrogenated lanolin, the percentages being refer to the dry ingredients. Normally about 1.0-5> 0% by weight of hydrogenated lanolin has been found in the composition proved to be advantageous and appropriate.

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The surfactants used according to the invention are all commonly known, anionic, surface-active agents, such as the alkali metal, ammonium or Alkanolamine salts of alkylbenzenesulfonic acids, ζ. B. dodecylbenzenesulfonate, of alkanoic or alkene sulfonic acids, e.g. B. Cg-Cp ~ - Olefin sulfonates, of alkyl sulfuric acids, e.g. B. Lauryl sulfate, of alkyl ether sulfuric acids, ζ. B. Lauryl (4-ethylene oxide) sulfate, and of carboxylic acids, ζ. B. tallow and / or coconut fatty acid soaps, and all customarily known, nonionic, surface-active agents such as the alkylene oxide condensate ion products, especially ethylene oxide and propylene oxide, the aliphatic, straight-chain or branched-chain alcohols, alkylphenols and fatty amides, e.g. B. C ^ -C ^ c-sec-alcohol, condensed with 7-12 ethylene oxide residues, tallow fatty amide, condensed with 11 ethylene oxide residues, and nonylphenol, condensed with 10-12 ethylene oxide residues, although other types of surfactants Substances can be used just as well if necessary.

The types of builders which can be used according to the invention are organic and inorganic builders such as Sodium nitrilotriacetate and the many well-known phosphate builders, z. B. sodium tripolyphosphate, sodium or potassium pyrophosphate, Sodium hexametaphosphate, sodium orthophosphate, etc.

The hydrogenated one used in the composition of the invention Lanolin is a product normally used in high pressure, high temperature hydrogenation from lanolin or by reducing lanolin with sodium. Hydrogenated lanolin is of course, basically no more lanolin at all. Lanolin undergoes a radical chemical process when it is hydrogenated Change so that hydrogenated lanolin differs in its basic properties from lanolin in many ways. Hydrogenated lanolin is an almost white, soft, waxy product with a very faint odor that is not attached to lanolin

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remind. A detailed description of hydrogenated Lanolin can be found in the Handbook of Cosmetics and Fragrances, Volume I (1969), pages 580-593 by Hugo Janistyn.

Hydrogenated lanolin is commercially available under various trademarks available, and it was z. B. used in cosmetics as an emollient or superfatting agent. Its application in detergent compositions and in particular its surprisingly good effect in improving softness of wool and delicate textile goods were previously unknown.

The composition according to the invention can of course - although this is not required - other conventional ingredients such as Sodium sulfate, hydrotropes, e.g. B. sodium toluene or xylene sulfonate and urea, foam boosters, e.g. B. Coconut fatty acid diethanolamide, Suspending agents for dirt, e.g. B. Sodium arboxymethyloellulose, Polyvinylpyrrolidone, copolymers of vinylpyrrolidone and vinyl acetate etc., optical bleaching agents, fragrances, Coloring agents, etc. included.

The composition of the invention can be in powder form or in Are in the form of an aqueous liquid and there are no problems whatsoever in preparing the compositions.

In the case .One powdered composition, the conventional production route of spray drying may be a _t-shaped mud composition to be followed, in which the hydrogenated lanolin can be entered in an appropriate manner and mixed with the other components' in the slurry.

The invention is explained in more detail below with the aid of examples. "·

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example 1

Eg became a detergent composition of the following Composition made;

Components% by weight

Sodium lauryl sulfate 20.0

Sodium tripolyphosphate 20.0

Sodium sulfate 50.0

Sodium carboxymethyl cellulose 1.5

hydrogenated lanolin (trade name

Lanoce-rina from Esperis S.p.A., Milan) 1.0

Fragrance and optical bleach 0.5

Water best

The composition described above was produced according to the usual spray drying process »

With a solution of the detergent composition of 5 g / l Woolen items hand-washed in lukewarm lye exhibited a remarkably soft hand. Ss were, neither matting nor shrinkage nor bleeding of colors observed.

For comparison, a similar product was produced, but without the addition of the hydrogenated lanolin. In the same Weise, a second batch of woolen articles was created with this product washed. The woolen articles felt not as soft to the touch as the composition containing the hydrogenated lanolin washed items.

Example 2

The following composition is a liquid product according to the invention and was made by simply mixing the ingredients made in an aqueous system.

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Components. Wt%

Sodium C 1-4 alkylbenzenesulfonate 10.0

Sodium lauryl (3-EO) sulfate ♦) 12.0 Potassium Pyrophosphate 8.0

Sodium xylene sulfonate 3.0

hydrogenated lanolin (trade name

Lanocerina from Esperis S.p.A., Milan) 1.0

ethoxylated lanolin 1.0

Perfume / dye / salts 1.0

Water . rest

*) EO f ethylene oxide residue

All wool articles washed with this product were remarkable soft.

Woolen articles which have been washed with the product of the same composition but without the content of hydrogenated lanolin, felt less soft.

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Claims (2)

Claims ι .. Especially for washing full items and sensitive items A detergent composition suitable for textiles, characterized in that it consists essentially of about 10 to about 65 weight percent of an anionic and / or nonionic surfactant, about 10 to about 50% by weight of a detergency builder (builder substance) and contains from about 0.5 to about 8 weight percent of a hydrogenated lanolin, the percentages being based on the dry ingredients relate. 2. detergent composition according to claim 1, characterized marked that the proportion of hydrogenated lanolin is from about 1.0 to about 5.0% by weight. 409824/1022