DE1467666A1 - Solid, speckled detergent mixture - Google Patents

Description

Dr. Walter Beil 19 Ηαν. 1965

Alfred Hocppener
Dr.n -J3: .tl in Wolff
Dr. Bans Chr. Hatchet

Lawyers ^ ._ ■ '

Frankfurt a. M.- Höchst Γ "^ \ '\ ·''■ Λ

Adeionstrasse 58 - TeL 3126 49 * $ ί ΓΓ i ^ i

Our No. 12 1J4

The Procter & Gamble Company Cincinnati, Ohio, V.St.A.

Solid, speckled ϊ / ash mixture

The present invention relates to solid detergent mixtures, whose content of dyes gives the mixtures a "speckled" Give appearance.

Colored, granular detergent mixtures have been in use for years Trade. The pale or pastel shades that these mixtures usually show are given to them by dyes, which do not adhere to the fabrics during washing; however, if handled incorrectly, the fabrics in the wash sometimes become a little bit blotchy.

Recently, granular as well as pressed granular products, e.g. briquette-shaped pellets, have been produced by the The clearly colored particles or speckles contained therein are more noticeable to the consumer and are easily recognized by him · In order to make these particles easily distinguishable from the bulk of the rest of the detergent mixtures they are relatively large and vividly colored. That's why Such particles tend to be easy to dissolve in the washing liquid, which is why undissolved strongly colored ones Particles easily come into contact with the tissues and even

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get stuck in it. " Cause under such conditions also non-stick dyes stains in the fabrics that can only be removed with difficulty by rinsing and even subsequent washing.

Try to greatly reduce or eliminate this risk by the fact that the color particles were produced from soluble components very quickly did not bring complete success Even tiny flakes of color that dissolve very quickly can cause strong dye concentrations on the surface of the fabric, if the dry or only moist detergent for some time remains on a damp tissue and there is not enough water to completely dissolve the color particles is.

It has now been found that such staining can be largely or essentially completely eliminated in this way can that the colored particles colored by a white dye which is discolored by the alkalinity of the washing solution used. In this way, even if the vtfaschmit— tel is applied under conditions which are worst promote staining if, for example, it is poured dry on moist tissue and left on it, every patchy four de η of the fabric largely during the wash or completely prevented.

According to the invention, a solid "speckled" detergent - mixture provided that contains an active detergent component - part contains, the mixture in water giving an alkaline solution and dispersed, protruding colored particles contains, the dye of which is essentially due to the alkaline solution is decolorized. By "protruding colored particles" are to be understood such particles, the color of which differs strongly from the color (if any) of the rest of the composition.

The mixture is preferably of a granular nature, can ·

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but also in the form of pellets, which are provided by Preesen of the granular Gemitch, e.g. in a suitable press box. The detergent mixture with the color particles must be of such a nature that they give an alkaline solution in water. Usually this is achieved by adding one or more of the alkaline, inorganic or organic * see salts clogging detergent mixtures normally ■ are added, such as alkali metal carbonates, silicates, Phosphates and polyphosphates or alkaline salts of aminopolycarboxylic acids. Neutral, inorganic salts such as alkali metal sulfates and chlorides can also be added provided that the mixture is an overall alkaline solution. The presence of soaps and / or organic, Synthetic detergents are not absolutely necessary, but desirable. The mixtures can also common additives, e.g. foam improvers, soil suspending agents, optical brighteners, fragrances, lime soap inhibitors Contain bactericidal agents and bleaches.

The colored particles may contain some or all of the components of the complete Contain detergent mixtures, of course under the

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Prerequisite that the dye added to them or they are incorporated so that no discoloration occurs before the mixture is added to the water for washing purposes. The color particles can have any desired physical shape, Se e.g. flake, chip or ITudelform, or they can be spray-dried Represent granules or agglomerations of even finer particles. They preferably contain one or several water soluble, inorganic salts and especially roar hydrate forming salts. Usually the larger ones own the Color particles with dimensions of 0.2 - 1.5 mm. Smaller particles are not recognized as individual particles, but mostly merge with the surrounding mass to form a pale overall color. Larger particles often only dissolve in the gas solution undesirably slow.

In the preferred manufacturing process the color particles are combined

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the water-soluble, inorganic hydrate-forming salt or salt mixture in the form of particles of a size that is smaller than the size of the color particles to be produced, by spraying or mixing with a liquid binder under conditions such that agglomerations occur, e.g. in a rotating drum or granulating mill. Water or a solution, preferably a solution, of an organic glue, for example dextrin glue, can be used as the binder. The dye can be mixed or sprayed onto the organic salts before or after the addition of the detergent, but it is expediently dissolved or dispersed in the binder in such a way that dyeing and agglomeration are carried out in one process.

The inorganic salt or the salt mixture can react either neutral, acidic or alkaline in the solution. Suitable Salts are e.g. sodium sulfate, primary sodium orthophosphate, sec. Sodium pyrophosphate, sodium tripolyphosphate, sodium carbonate and bicarbonate or mixtures of two or more of the foregoing Salts. A preferred mixture contains 95-80 parts by weight of pentane sodium tripolyphosphate and 5-20 parts by weight of sec. trium pyrophosphate

The coloring agents may be any dyes or dispersible ones Be pigments that are discolored by the alkalinity of the washing solution used. The suitability one? s dye can be demonstrated, for example, by using dye particles of the desired color strength either as described above or in any other way (if they are to be incorporated into the detergent mixture). the Color particles are then placed on a piece of dry fabric, which is then placed on a piece of damp cotton fabric or on a material that is equally absorbent. On this lays one more piece of the damp cotton fabric. After letting it stand in the heat for the whole 10 minutes, e.g. at 26.67 ° C, the discolored tissue sample is rinsed.

Then it is in the usual way in a solution of the alkaline

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see mixed detergent washed. The suitability of the dye is proven when the stains have been substantially discolored. Lissamine Green SF 150, for example, is suitable as a dye (CI. 4-2095), Lissamine Green V 200H (G.I. -44025), and Ink blue (CI. 42755) The G.I.-numbers in brackets refer to the "Color-Index-Second Edition 1956" ("Color Index, 2 · 1956 Edition") published by the Society of Dyers and Golouriets and the American Association of Textile Chemists and Colorists.

The following examples serve to illustrate the invention:

example 1

Blue colored granules were obtained in the following way: A mixture was prepared consisting of 816 parts by weight of granular anhydrous sodium tripolyphosphate, 64% of which had a particle size of 422Ju, and 91 parts by weight of anhydrous secondary sodium pyrophosphate, of which at least 75% had a particle size of 152 / U. To 201 parts of a sizing solution, the -tfatriummetaborat 65 parts dextrin, 18 parts of a mixture of borax and the balance water and contained, 40.2 parts of a solution of 2.5 parts of blue crystals Ink _r (CI. 42755) were placed in water , the temperatures of the solutions being adjusted so that the temperature of the mixture was about 37-78 ° O. Within 15 minutes of making the glue-paint mixture, it was sprayed onto the mixed phosphates in a granulating mill at a rate such that the duration of the spraying process was 5-7 minutes. The agglomerated, finished granulate produced in this way was passed through a sieve with a mesh size of. 1405.U given, the sieved product being 55% by weight of particles with a size of 699 / U. duration.

Am part of the colored granules was examined whether if they

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used as a speckle of color in a detergent mixture, the fabric washed in it could be discolored by them " The examination was carried out according to the procedure described above, with the discolored tissue sample taking 3 minutes at 60 ° C. was washed in a v / a solution containing 0.27% by weight a spray-dried, granular, synthetic detergent mixture contained the following composition:

Linear Alkylbenzölsulfonet 22 wt.%

(Alkyl chain 12 G)

Sodium tripolyphosphate 36 w / w

Sodium sulfate 22% by weight

Sodium Silicate Solids 7.5 wt%

(Weight ratio of
SiO ₂ : Na ₂ OI, 6: 1)

Foam stabilizer (fatty acid ethanolamide) 2% by weight Moisture, fragrances, optical brighteners

etc .. 10.5% by weight

The discoloration on the tissue sample was the essentially completely discolored by this treatment. A blue speckled, non-staining detergent composition was prepared by dissolving 2.5 parts by weight of the colored granules almost uniformly in 97 »5 parts of the above spray-dried, granular, synthetic detergent mixture were dispersed.

Example 2

2,000 g of a granular sodium tripolyphosphate were combined with 530 g of a glue solution, the 141 g of Destrin, 11 g of Lissamine Green V 200H (CI. 44025) and 40 g of a mixture of borax and metaborate and the remainder water, sprayed into a granulating pan. The resulting agglomerate was used for removal larger particles passed through a sieve with a mesh size of 1405 / U. .

Its aliquot of the screened, colored particles obtained .. became so with a spray-dried soap composition

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mixed so that they almost uniformly dispei ^ therein was yaws · The resulting, Farbspisnkel having v / aschmittelgemisch contained 65 wt .- #> sodium soap, 11.5 wt .-% of sodium silicate (with a weight ratio of siop: Na ₂ O of 2: 1), 14.5 % moisture, 2.5 % colored particles, smaller amounts of additives such as sodium phosphate, low-carbon suspending agents, optical brighteners, fragrances, but no bleaching agents.

For the purpose of demonstrating that the colored particles are speckled in the Detergent composition did not cause discoloration of the fabrics washed with this mixture, became another Part of the sieved colored particles tested as follows:

The other part of the colored particles was placed on a dry piece of test fabric, which was then placed on a damp cloth Piece of cotton fabric was brought. Another piece of damp cotton was placed on top and the grains underneath held under these conditions for 10 minutes at a temperature of 26.67. The tissue sample that is discolored by this treatment was rinsed and then 3 minutes at 60 G in a washing solution containing 0.29 g of the spray-dried soap-

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mixed ge liters of solution, washed.

The discoloration on the tissue sample was caused by this treatment essentially completely discolored.

Similar results were obtained when using Soluble Blue 3M 200 (G.I. 42755) instead of Lissamine Green V 200H.

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Claims (13)

U67666 PATENT CLAIMS: 1. Jüin solid, speckled detergent mixture, characterized by a content of an active detergent, the mixture in water giving an alkaline solution, and dispersed, strikingly colored particles, the dye of which is essentially decolorized by the alkaline solution. la) a solid, speckled detergent mixture comprising (a) a detergent active, and (b) abstechend colored particles containing and solution gives an alkaline Lö in water, characterized denotes ge "" that the colorant of the particles in the alkaline solution is substantially decolorized will. 2. Detergent mixture according to claim 1, characterized in that the colored particles are a water-soluble inorganic Contain salt or a mixture of such salts. 3. detergent mixture according to claim 2, characterized in that that the inorganic salt or salt mixture contains one or more hydrate-forming salts. 4. detergent mixture according to claims 2 or 3, characterized characterized in that the inorganic salt or the mixture of these salts is agglomerated by a liquid binder and by a solution or dispersion of a dye which is essentially decolorized by the alkaline solution, has been colored " 5 detergent mixture according to claim 4, characterized in that that the dye is dissolved or dispersed in the binder 6. detergent mixture according to claims 4 or 5, characterized characterized in that the binder is an organic LeLm. BATH ORIGINAL 909803/0998 U67666 7. Detergent mixture according to ₁ claim 6, characterized in that the organic glue is a dextrin glue. 8. detergent mixture according to one of claims 2 Ms 7 »characterized in that the mixture of inorganic salts Contains 95-80 parts by weight of pentasodium tripolyphosphate and 5-20 parts by weight of secondary sodium pyrophosphate 9 · detergent mixture according to one of claims L to 8, characterized characterized in that the colored particles consist predominantly of those whose large dimensions are in the range between 0.2 and 1.5 mm. 10. WaßchmittelgemiBch according to one of claims 1 to 9 «thereby marked that the dye Ink blue (GI 42755) » Lissamine Green SP 150 (CI 42095) or Lissamine Green V 200H (OI 44025). or has the same chemical structure. 11 · detergent mixture according to one of claims 1-10, characterized characterized in that it is granular. 12 · Process for the preparation of a speckled detergent mixture according to claim 1, characterized in that a water-soluble inorganic hydrate-forming salt or a · Mixture of these salts is sprayed or mixed with a liquid binder, with an agglomeration of the salts 8 or of the salts takes place into particles, most of which have a size in the range from 0.2 to 1.5 mm, and the binder a dye or dispersible pigment (the can be essentially decolorized by an alkaline solution), whereby the particles are colored and that the particles are mixed with a particulate active detergent to form a "speckled" detergent mixture to build· 13. The method according to claim 12, characterized in that 909803/0998 H67666 the inorganic salt or salt mixture of sodium sulfate, prim _f sodium orthophosphate, sek.Natriumpyrophosphat, sodium tripolyphosphate, sodium carbonate and / or sodium "bicar" carbonate-containing 14. The method according to claim 13, characterized in that the mixture of inorganic salts 95-80 parts by weight of penta sodium tripolyphosphate and 5-20 parts by weight sec. Sodium- contains pyrophosphate. 15 · The method according to any one of claims 12 to 14, characterized characterized in that an organic glue solution is used as the binding agent 16. The method according to claim 15, characterized in that a dextrin glue is used as the organic glue 17 · The method according to any one of claims 12 to 16, characterized in that the dye or dispersible pigment Ink blue (O.I. 4-2755), Lissamine Green SF 150 (CI. 42095), Lissamine Green V 200H (G.I. 44025) or a substance same chemical structure is used. Pur The Procter & Gamble Company Cincinnati, Ohio, V.St.A. BATH ORIGINAL 909803/0998