DE1815170A1 - Production and use of peroxymonosulphate compositions containing aliphatic carboxylic acids as oxidation accelerators - Google Patents

Description

E. I. Du POKT DE j ^ MOURS AND COMPANY 10th and Marko "Street", Wilmington, Delaware 19898 "V.St.A.

Production and use of aliphatic carboxylic acids as an oxidation accelerator containing Peroxyfflonoeuifate S compositions

Because of their well-known oxidative properties there are many Applications for peroxymonosulfur acid and their salts (pefoxymonosuifate) has been suggested in the patent and chemical literature. Such applications include shrink-proofing von Volle, the bleaching of textiles, the removal of fleoken from textiles and solid surfaces and cleaning dentures. Peroxymonosohifeficure and its salts are also known to have bactericidal activity exhibit.

Peroxyraonosohulphuric acid (HLgSOe) is sometimes also called monopereohulphuric acid or Caro'sohe acid and its sal sa, d. H. the Peroxynionosulfate, are sometimes also Monopersulfate or called cardate.

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Although peroxyraonosulphuric acid and its salts for the above » and similar applications are suitable because of their oxidative properties »is their effectiveness for them Purposes not as big as it is wanted. The present Invention is based on the discovery that certain «easily accessible Substances actively accelerate the oxidative effect of peroxy ·· monosulphates and thereby their effectiveness and Increase suitability for the aforementioned uses.

The invention relates to particulate compositions of Mixtures of a water-soluble Ptroxymonosulfat and 0.2 to 10 moles per mole of the peroxymonoaulfate of a water soluble one Salt of an aliphatic carboxylic acid having 1 to 4 carbon atoms.

The invention also relates to compositions whose aqueous Solutions have a pH of about 5 to 10 and the peroxymonosulfate ions (HSOc) and about 0.2 to 12 moles per mole Peroxymonosulfatlon on acylate ions of an aliphatic carboxylic acid with 1 to 4 carbon atoms.

The invention also relates to a method of bleaching Textiles that can be bleached with peroxymonooulfats are, or the removal of stains from textiles ,, where the textiles are subjected to the action of such a solution.

Finally, the invention never also relates to the use of a such a solution for bleaching textiles that are alkali-sensitive are, d. Ii · of fabrics containing cellulose triacetate fibers Contained, and of solitary fabrics, dyed in parts are with a delicate dye.

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15170

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Every aliphatic acid with 1 to 4 carbon atoms or its water-soluble salts which contain no heavy metals or other cations "which react in the undesired sense" or which catalyze the decomposition of the peroxymonoaulphate is a source of the aoylation accelerator for the process soaked in the invention oxidizing effect of peroxynonosulphate suitable. Suitable sources of aoylate ions are, for example, formic acid, acetic acid, propionic acid and butyric acid, the alkali, ameonium, alkali metal, magnesium, cadmium and zinc aces, solobar acids and mixtures of three or more such acids and / or their salts. Examples of unsuitable sources for aeylatlocia are the Sohwera metal salts of the aforementioned carboxylic acids, ie the bis, cobalt, copper, chromium and nanganese salts, which would introduce Sohwemetalions, which tend to catalyze the decomposition of the Peroxyeonosulfate. The preferred sources for the acylate ion accelerators are the carboxylic acids themselves. ä @ r @ n ammonium and alkali salts. The m most preferred accelerator 1st the Aoetation, with acetic acid and the Amaonlum- and alkali metal acetates, in particular sodium and Kallumacetat that bevorcugten sources therefor.

Each of the mineral salts of feroxymonosulphuric acid can suMoaen with a water-soluble salt of the carboxylic acid of the aforementioned kind as a suitable source of acylation accelerators in the formulation of the finely divided composition according to the present invention will. Examples of such peroxymonosulphates are the alkali *, the alkaline earth and amoonium salts of peroxymonosulphuric acid and mixtures of two or more thereof. Because of their "outstanding stability, the

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Potassium salts, wio potassium peroxymonosulphate monohydrate, KBSO ^ and the triple salt dee kallumperoxymonosulfate of the formula KHSO ^ .KgSO ^ .2KHS0. preferred. The commercial form of this Trlppelaalzes has an active oxygen content of around 4.7 Qew. £ and represents the most preferred peroxymonosulfate For reasons of stability, the part-coil shape should Settlement to be practically dry, ie. that they are essentially should not contain any free water or looker-bound water in the form of crystal water. Preferably all should Components are in practically anhydrous form.

In formulating the solution compositions according to the invention can be any of the aforementioned peroxymonosulfates or the Peroxymonosulfate cure itself as a source for the peroxymonosulfatlonen, BSOc * can be used. In the same catfish can all of the aforementioned carbonalurs or their salts as a source of the. Acylation ion accelerators can be used. the aqueous solution containing both peroxymonosulfate and acylate ions contains, but should have a pH value in the Bereloh of 5 to 10, because no noticeable accelerating effect is found by the aforementioned aoylatiohen with regard to their oxidizing effect on the peroxymonosulphate when the pH values are higher or lower. Solutions.with -A pH value in Bereloh of 6 to 8 is preferred. The division of the pH value of the solution to bring it into the pH range from 5 to 10, preferably 6 to 8 can "bring" with help the usual soluble alkaline materials are made, if an increase in the pH value is required or not at all 1st, or by the addition of any of the ubiquitous acidic substances, if a downward adjustment is warranted or required will. Oil-friendly alkaline substances for this purpose are the alkali and ammonium hydroxides and alkaline-reactive

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rende salt ", such as alkali carbonate" phosphates and the like. Suitable acidic materials are nitric acid, sulfuric acid, Phosphoric acid and peroxymonosulfurstture, as well as acid salts, like sodium and potassium bisulfates *

over the considerable acceleration of the oxidizing effect of the To achieve peroxymonosulphate ions * the molar ratio of Acylation see peroxymonosulfatlon in the solution in general be at least 0.2 s 1 «with a molar ratio of about 0.7 to 5: 1 is preferred. Molar ratios of acylation to ^ Peroxymonosulfate ion of up to 12: 1 or even higher are ™ also effective and usable »but for reasons of cost they are 1» generally not attractive. Oa the finely divided compositions of the invention are particularly suitable for preparing solutions, which have the above requirements the · f one-part compositions in general Mix the selected peroxynonosulphates and carboxylic acid salts made in such proportions that «ie the above Requirements for the molar ratio of acylation ion

su peroxymonosulfurization correspond to

The particulate compositions erflndungagenlseen IeOn * NEN completely free of compounds other than the. Peroxynono- ä sulfate and be the Carbonslfureealz. However, they can also, and preferably, contain a source of an alkaline and / or buffering agent, such as tetrasodium pyrophosphate, in such amounts that, when the composition is dissolved in water, the resulting solution has a pH in the desired range of Has 5 to 10. Other substances, such as stabilizers, wetting agents or optical brighteners, can also be mixed in, generally in smaller proportions.

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SAD OWGiNAL

PC-3464

The particulate compositions of the invention containing both a peroxymonosulfate and a carbonic acid salt can be used as sources of peroxynonosulfate for any of the numerous previously published uses of peroxymonosulfates. Thus, the compositions can be used for the formulation of drying agents, for example for household laundry, for additional compositions for removing stains and all components of detergents and cleaning agents. They can also be used to keep the water clean in swimming pools or as components of compositions for dentures.

A dry bleach for household linen can be formulated by mixing a 1% by weight mixture of sodium acetate and the commercially available Kaliuraperoxynionosulfattri: »* pelsals; A bleach containing 50 % of such a mixture and a slightly granulated soda as the rust can be used effectively as a bleach for household laundry when this composition is added to the washing water to achieve an active oxygen concentration of about 20 to 30 ppm The incorporation of a small amount, ie, $ 0.1, of an optical brightener is generally beneficial. Solo compositions can also be added directly to washing machine wash water to maintain an equally active oxygen concentration. The same composition can also be used to remove stains that are difficult to get out of clothes, especially when added to normal tap water (49 to 60 ^C C) to achieve an active oxygen concentration in the water of about 100 to 200 ppa. Solo compositions are suitable for washing fabrics made of all natural or synthetic fibers, with the eventual

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Except for silk and wool, which are at lower temperatures should be hand washed. They are also used for washing or removing stains from easy-care fabrics, those colored with common ilipene or sulfur dyes are «suitable.

Mixtures of sodium acetate and the aforementioned potassium peroxynonosulphate triple salt, for example in a weight ratio of 1: 1, are also suitable for formulating household detergents. Such wet-out detergent can contain 5 % 20% of such a mixture, 20 % of an alkylarylsulphonate 35 to 50 % sodium tripolyphosphate, 10% sodium sulphate and 10% sodium sulfate. The incorporation of a small amount of # in®s soot dissolving agent such as sodium carboxymethylo # Uul © g <s, xm & eiaa »optissto & n brightener is generally a« n

Powdered cleaning fluids to remove stains from the surface of porcelain, aluminum utensils, and stainless steel ware can also be formulated using a 1: 1 mixture of sodium acetate and the potassium peroxymonosulfate trap salt. Such ailments can be formulated. Using 5 % of such a mixture, 5 % of an alkylarylsulfonate, 5 % of anhydrous tetrasodium pyrophosphate, 5 % of sodium carbonate and 80 % of mixed silica. Such additives are generally applied to damp surfaces from which the stain is to be removed, or they are applied to a damp cloth and then rubbed over the stained surface to effectively remove the stain. Mixtures of a SbIz of a carboxylic acid with 1 to h carbon atoms, such as sodium acetate, together with the above-mentioned potassium per-

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oxymonosulfate tripple salt, ζ. B. a 1 s 1-Qewiohtsmisohung, can be used directly to prepare solutions for cleaning dentures. These solutions can, on the other hand, also contain a synthetic detergent such as an alkylarylsulfonate, sodium pyrophosphate, and a palatable agent. A dry denture cleaning composition can be formulated containing about 50 pounds of such a mixture, 15 % anhydrous sodium pyrophosphate, 1 $ synthetic detergent, 10 % trisodium phosphate, 19 % sodium sulfate, and 5 % sodium metalate. If such a composition is added to water in such an amount that an active oxygen content of 50 to 250 ppm is guaranteed, a solution is obtained which is effective as a dental prosthesis cleaning agent.

Beabelohtlgt »to use the inventive finely divided composition for the production of a solution for bending textiles, so it should preferably contain a peroxymonosulfet and a salt of a carboxylic acid with 1 to 4 carbon atoms together with a buffering agent in an amount equal to that of the composition when it dissolves results in a Blelch solution in water, which has the desired active oxygen content, for example 0.02 to 0.2 % and preferably 6.01 to 0.1%, and the solution also has the usual pH value, e.g. B. from 5 to 10 and preferably 6 to 8, without the separate addition of an agent for anglelohen the pH is required. Suitable buffers for use in preparing such compositions are sodium polyphosphate (NaeP ^ O ^ Q), sodium metalloate (Ma ₂ SO,), sodium tetraborate (Na ₂ B ^ O,), disodium phosphate (Na ₂ HPO ^), tetrasodium pyrophophate (Na ₄ P ₂ O ₇ ), soda (Na ^ CO,) and sodium phosphate (Na, PO ^). These substances are generally

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my soda, tetrasodium pyrophosphate (TSPP) _x trisodium phosphate (TNP) and disodium phosphate (DHP) is preferably * These preferred agents are extremely effective and act similarly in general, particularly in solutions for Textilbleiohen, s * B. at temperatures between room temperature and 100 ⁰ C, preferably 66 to 88 ^D C

When formulating the particulate containing buffer substances Compositions are said to be the peroxymonosulfate, the Salt of the carboxylic acid and the buffer substance? so proportioned that when dissolving the composition in water.in a concentration at which the desired active oxygen content is obtained, the solution also the desired pH, and also the salt of the carboxylic acid is present in such a concentration that it is desired Molar ratio of acylate ion to peroxymonosulfate ion is present. As stated earlier, the molar ratio can from acylate ion to perozymonosulfate ion in general in the range from 0.2 to 12: 1, the preferred wood ratio is about 0.7 to 5: 1.

If sodium acetate is used as the carboxylic acid salt component and the commercial form of the triple salt of potassium peroxymonosulphate of the formula KHSO ^ .KgSO ^ .2KHSOt (active oxygen content about 4.7 %) as the peroxymonosulphate component, the weight ratio of sodium ao acetate to triple 05 to 3 «2: 1 and preferably in the range from 0.2 to 1.4: 1. The amount of buffering agent, ie soda, tetrasodium pyrophosphate (TNPp), trinatylum phosphate (TNP), dinatriutaphosphate (DKP) or mixtures thereof, should be so large in the particulate mongrel that one can produce a 3># aqueous solution

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the composition is given a solution having a pH of 5 to 10 »preferably 6 to 8.

One such application for the compositions according to the invention is the bleaching of textiles "which contain parts" which have been dyed with a sensitive dye. For such applications, the bleaching solution, which contains peroxy monosulphate and acetate, is preferably buffered to a pH of 6 to 8. B. by using one of the aforementioned buffering agents. The Blelohen can be done at normal room temperatures, but temperatures la Bereloh 38-100 ⁰ C are preferred. At such temperatures, lead times of 10 minutes to 5 hours can be used, the lower temperatures generally requiring longer times than the higher temperatures. Blelohening can be done by dipping the fabric in the bleach solution and holding it at the desired temperature. Preferably, the fabric is impregnated or saturated with a solitary amount of the bleaching solution, which corresponds to about 50 to 150 # des etoffgewiohtes, and the saturated fabric is then heated to the desired temperature, e.g. by adding live steam or a mixture of water vapor and brings air together, depending on the desired temperature. It is particularly advantageous if the bleaching is carried out using an apparatus such as the well-known J-box, which allows a continuous procedure.

The following examples describe the effectiveness of the inventive Compositions for removing stains from textiles and for bleaching textiles · In den Examples and throughout the description mean parts by weight and percentages are percentages by weight.

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example 1

You make a normal cotton fabric stained with tea and coffee. The whiteness of the stained fabric is then determined using a Hunter Rectometer. With this determination, the weight values are obtained as a percentage reflection. . Percentage reflection is the percentage of light "that is reflected from a sample when measured using a Hunter reflectometer with a blue filter and at which a reflection of 100 % is obtained with magnesium oxide". Samples of this stained cloth are then used for lead-in old household linen using a standard Laund "r ~ O ~ M" t & r & r &. In one series of tests, the wasehfltlasiefit contains a detergent which is composed of a conventional alkylbenzenesulphane in a concentration of 0.1 % without any further additives. In the case of Ines * Parsllelversuehszeile the choice susäfelieti sm am 0.1 $> detergent contains a quantity of the aforementioned ha »d®le! ÄMl © & i @! A potassium perox ^ aonosulphate tripeleals (active sour tea content 4.7 %), to that 25 pp »Are available in active oxygen. In a third Versuohsaerie the washing liquid contains, in addition to the detergent and the Kaliumperoxymonosulfatprodukt in the above-mentioned concentrations of sodium formate or sodium acetate or Natrlumbutyrat in a concentration of 1.25 $>> In any Vereuohsserie is the washing operation eight times for 10 minutes at 54.4 ⁰ C (150 ⁰ P) is repeated in the Launder-O-Meter, and then the swatches are washed and dried and their wise values determined. The results are shown in the table below. In the table, "improvement in points over the stain fabric" means the point gain of the reflection of the washed fabric over the reflection of the original stain fabric, while "improvement in points

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ten compared to the stain fabric + detergent "the point gain the reflection versus the reflection of the stain cloth means after it has been washed with the detergent alone has been"

Improvement improvement in points in points over that over that Pleckenstoff Fleokenatoff + detergent

Detergent alone 5.5 ' Detergent + monopersulphate 9 * 4 3.9 Wasohmlttel + monopersulphate

+ Sodium formafc 9 * 9 4.4

Detergent + monopersulphate

+ Sodium acetate 12.2 6.7

Detergent + monopersulphate

+ Sodium butyrate 10.3 4.8

The above values show that the addition of either sodium formate, sodium acetate or sodium butyrate to the wash liquor containing peroxymonosulfate results in a significant increase in the wisdom of the fabric. These salts clearly increase the lead connectivity of the peroxymonosulphate. The increasing effect of the sodium acetate lat excellent because the gain in year-over-Refloxionapunkten Pleokenetoff + detergent 6.7 is, compared to only 2.9 when using only the Feroxymanoculfat with ^one detergent. The 2.8 point increase, which can be traced back to the improving effect of the Hatrumaoetat3, means an increase of approximately 72 % with regard to the Welsee, compared to the Voisse, which is obtained when using the peroxymonosulphate alone with the detergent.

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Bel a p i β 1

Two strips of stained fabric are made by making two rags of a very stained cotton fabric (obtained from Test Fabrics, Inc.) sewed together so that each test strip was made from rags of different stains Fabric, together with rags of the same fabric that has been previously bleached, and together with rags "the." have not been bleached e.g. B. gray fabrics. Each test strip is subjected to a stain removal test, wherein one solutions of the aforementioned, commercially available potassium peroxymonosulfate tripel salt used with and without sodium acetate as an accelerator.

The Fleokentfemungslösung contains 0.2 % of the PeroxymonosuX-fattrippelaalzes and 0.4 % sodium pyrophosphate deoahydrate «One of the test solutions, A> contains no sodium acetate, while the other test solution, B, contains 0.5 % sodium acetate« The pH value * of both solutions is 8.6. The test strips are soaked in the solutions in a liquid / substance-weight ratio of 20: 1 and the soaking time lasts 3 hours while the solutions are kept at a temperature of βΟ ⁰ ° C. The test strips are then removed, washed thoroughly with water and dried.

The dried strips are then examined by three people and in all examinations the persons independently determined that there were <3ic spots on the stripes, which had been treated with formulation B, lighter were as the corresponding spots on the strips that had been treated with formulation A. Any rag Each test strip was then turned into one through the opening

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Hunter reflectors held and on the back with a Standard provided a reflection of £ 83 and the percentage Reflection Each one of the lobes was determined. The results are given in the following table »

fi reflection Formulie stains Formulie tion B tion A 61.4 red wine •
58.9 11.1 Blood, milk and Japanese ink 10.0 41.0 cocoa 40.5 31.0 hemoglobin 27.7 17 · 1 oily earth 16.3 36.2 Sulfur dye 32.8 59.7 gray fabric 58.3 82, & bleached fabric 82.2

With the above results show, the Fleokenentfer * the various stains from the test strips Formulation B solutions containing sodium acetate are essential more effective than with solutions of the formulation Δ.

Example 3

A solution is prepared which contains 1.5 % of the aforementioned, commercially available potassium peroxymonosulfate trippel salt and 0.7 2 of sodium pyrophosphate decahydrate. A similar solution B is made, except that it also contains 1.6 % sodium acetate trihydrate. The pH value of the solutions is 6.0 in each case. Samples of a basic washed 78 χ 73,

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is

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8.1 ra / kg of cotton fabric "ground with the one or the other of the abovementioned ventilation systems so saturated" she dase 100 Gev. £ contain the solution, and the saturated samples are then gebleioht In an atmosphere of saturated water vapor at 100 ⁰ C for 10 minutes . After rinsing and drying, the weight of the fabric samples is determined. The percentage reflectance of the sample treated with solution A is 82.1 %, while that of the sample treated with solution B and containing sodium acetate is 86.2 % .

Bel ep 1 e 1 4

Samples of the same substance as used in Example 3 are treated as described in Example 5, with the exception that the treatment solutions contained 2% (instead of 1.5 <£) of the Kallunperoxymonosulfattrippelsalzes and each of the solutions 5 £ hatriunpyrophosphate decahydrate 1.5 % acid sodium pyrophore added to adjust the pH of all vents to 6.0. The bleaching results obtained with four of these vents containing 0, 1, 2, and 5 % sodium acetate hydrate are shown below.

% Sodium acetate £ reflection trlhydrate O 86.4 1 87.7 2 87.9 5 88.4

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5AO ORIGINAL

PC-5464
example

The procedure of Example 3 is repeated using a bleaching solution which contains 1.5 % of Kalumperoxymonosulfattrippelealzes with varying amounts of sodium pyrophosphate to change the pH Contains 1.6 % sodium acetate trihydrate. The percentage reflectance, as reported in the following table in column A, represents that obtained using a solution without sodium acetate, while those given in column B represent those obtained using Lb * -. solutions containing sodium acetate were obtained.

% Sodium pyrophoephate 6th PH f> JIe flexion B. Increase, by A. 86.0 the acetate 1 6.8 84.7 86.7 1.3 1.5 7.7 84.6 86.8 2.1 2.0 8.0 85.2 1.6 example

200 g of the commercially available Kaliumperoxmonosulfattrippelsalsee are 20 minutes in a twin-shell mixer with the glelohen Mixed anhydrous sodium acetate as tightly as possible. Man make a bleach solution by adding 20 g of the mixture obtained Dissolve in 880 ml v / ater and then the nH value of the solution with a mixture of 35 ml of water and 89 ml of an oily solution of tetrasodium pyrophosphate decahydrate. One Sample of a basic washed 78 χ 73 Baurawolltuehes (8.1

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4 yd./Ib.) Is saturated with the Bloich solution so that it contains 100% by weight of the solution, and the saturated sample is then heated ^{to 88 ° C. with steam for 20 minutes.} The whiteness (% reflectance) of the swatch was increased from 68.8 to 85.1 by this bleaching treatment. If another pattern of a fabric in the same catfish is bleached with the solution for 20 hours at room temperature, the percentage reflection is increased from 68.0 to 84.7.

Example 7

A particulate composition is prepared by dry blending 2 parts of anhydrous sodium acetate with 3 parts of the commercially available potassium peroxymonosulfate tripple salt in a twin shell mixer. A 2.5 ^ 1go solution of this composition in water has a pH value of 5 * 3. toteile de? The resulting mixtures are buffered by the addition of various buffer substances in the amounts given in the table below, each of the solutions obtained having a pH of 6.4 Ms 6.5. The solutions obtained are used to bleach a 10 g sample of a basisoh washed, printed fabric which had an unbleached whiteness © (^ reflection) of 67.7. The bleaching was carried out by the cloth NIIT an equal amount of saturated and then BleiohlÖsung dac saturated cloth was heated for one hour at 71 ⁰ C. After the bleaching treatment, the fabric was rinsed with 500 ml of water, the pH of the rinsing water and the percentage of residual active oxygen therein were determined, and the whiteness of the bleached fabric was measured. The results, together with the amounts of buffer substances used, are given in the following table *

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in the following table, TNP means trisodium phosphate, DNP means disodium phosphate and TNPP means tetranatriurophosphate.

Ver
search buffer • ■ 0.26 pH of the winding % Reat
active water
, Oxygen 40 % Re
fle
xion A. % in solution 0.50 5.5 35 88.1 B. anhydrous
TNP 0.14 5.45 52 87.8 C. anhydrous
DNP 0.33 5.35 47 87.5 D. anhydrous
.Sodium meta-
silioot 0.47 5.4 48 86.8 B. Borax penta-
hydrate 5.6 88.0 anhydrous
TNPP powder

example

cat «well

A dry mixture ia weight ratio 3 is made! 2 from the commercially available Kalluiaperoxymonoeulfattrippelsalz and anhydrous sodium acetate. Particulate Composition A is then prepared by dry blending 25 parts of the mixture with 2.25 parts of the anhydrous granulated tri-sodium phosphate. Composition A thus contains about 55 # of the triple salt, 2> 6.7 % sodium acetate and about 8.3 # TNP. TeilchenfiSraiige Ziisar.unensetzungen B and C are prepared in the same manner untor using 5.2 parts of anhydrous NatriuBspyrophcsphatpulvers (TllPP) and i, 85 parts waeserfreiem soda, ^if instead of 2.25 parts on I ¹ NP. The compositions A, B and C are each dissolved in about 970 parts of water and result in equilibrium solutions with pH values

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of 6.4, which contain 1.5% of the above mentioned Trlppelaal ore.

The solutions obtained are used for bleaching samples of a base-washed, printed cotton cloth which has an initial welsse (reflection) of 68.0 to 68.7. -The bleaching was effected by a same old Qewichtsmenge the Bleiohlusung saturates the cloth pattern, and then heating the saturated sample to 71 ⁰ C. The Bleiohdauer at 71 ⁰ C, the percentage of the remaining or non-consumable · ten active oxygen at the end of Blelohzeit and Bleichergebnias.e "ground reproduced in the following table.

used to « Bleaching tent remaining Reflection, samoMneetsung in minutes Oxygen, j A. 30th 85.1 A. 75 35 86.1 A. 120 17th 86.5 B. 30th ■ iac 85.2 B. 75 Kl 85.4 B. 120 27 87.6 C. 30th 85.0 C. 75 29 84.7 C. 120 17th 85.4

If the above bleaching process is repeated using a composition of 54.7 % of the triple salt, 27.2% sodium acetate and 18.1 % disodium phosphate instead of οθγ composition A, essentially the same results are obtained as those obtained when using composition A.

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Example 9

5 coughs of differently colored fabrics, all about 1.82 ro χ 25.4 QO in size, are sewn together, and the resulting arrangement is placed in the middle of a 91 » 4 w x. 25 »k on pattern sewn from unbleached cotton wool so that nan receives a sheet of cloth. The colored patterns are:

(a) A cotton goose fabric that has a 12.7 nm large checked pattern, colored with a blue copper » phthaloeyanine dye, contains;

(b) a 50:50 cotton / polyester fabric a 1.7 on large check pattern, the dispersing and naphtha red dyes contains;

(e) a goose made of cotton, more capable of laughing Fabric with a 2.54 on large checked pattern, dyed nlt Naphthol red dye;

(d) a goose made of cotton, medium weight Fabric that contains stripes of naphthol red and yellow stripes against a white background and

(e) a striped fabric made entirely of cotton, the alternating 3 »17 nan catfish and green stripes that nlt contains a green vat dye.

The web of fabric is continuously saturated with the same amount of a bleaching solution which consists of a 2.8% solution of a particulate composition of 8.3 % anhydrous sodium phosphate, 36.7 % anhydrous sodium acetate and 55% of the commercially available Kallunperoxymonoeulfättrippelealzes, and one of them Has a pH of 6.4. The saturated fabric is continuously drawn through a J-box which is held a mixture of steam and air at about 85 ⁰ C. with the aid, wherein the Durohzlehgesohwlndlgkelt through the J-Box

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is set so that a dwell time of the substance of about an hour is given. 33er leaded fabric is then taken out of the J-3ox and washed with hot water, whereby men determines that all dyed swatches on the panel are well bleached without bleeding or The dyes are washed away on the non-colored parts of the The substance has taken place.

If the above procedure is repeated using a bleaching solution composed of the same particulate admixture, Containing anhydrous soda, anhydrous tetrasodium pyrophosphate or anhydrous disodium phosphate has been prepared instead of tri-sodium phosphate, then in general the same results are achieved. Such bleach solutions are also effective for bleaching alkali-sensitive fabrics such as those "containing cellulose triacetate fibers"

The above examples show the effectiveness of the sodium format « Natrlunacet & ts and Sodium Butyrata to speed up the oxidizing effect of potassium peroxymonosulphate when removed on stains from textiles and when bleaching textiles «similar results are obtained by using other salts of aliphatic carboxylic acids with 1 to 4 carbon atoms or if you use the acids themselves instead of sodium format, sodium acetate or sodium butyrate. Xn same As a result, you get the same results when you look at others water-soluble .beroxyinonosulphates, such as sodium or ammonium oxymonosulphate, instead of potassium peroxyraonosulfate " Trpple salt as used in the examples was used. The effectiveness of the acylate compounds in loading accelerate the oxidative process of feroxymonosulphate

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«Ar completely unexpected and is very obvious except · neatly advantageous and practical.

The positive effect of the aoylates of the aforementioned type on the oxidative effect of peroxymonosulphate can be determined under all the conditions under which peroxynonosulphates are known to be active, for example when bleaching or removing stains or sur spots * distance at ordinary or elevated temperatures "in bleaching process according to the Tauohnethode or those processes in which the substance is simply sdt 50 to 150 £, preferably 80 to 120% _$ the Bleiehlueung containing the Peroxymonoeulfat and the accelerator, saturated and where in the saturated state the bleaching is either "used" at building temperature or at higher temperatures, see for example the WaaeerdanpftenperntttP

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Claims (1)

* ft f 17th Duember 1968 Patents »ρ r ü ο h e ftllehenföraige Zuessnensetung, characterized in, that si · a · mixture of a «water-soluble Perojajjr« ■ One sulfate is a water-soluble salt of an aliphatic Carboic acid with 1 to 4 carbon atoms contains gnnittwen-tguns NaOH Anepruoh X ₉ characterized in ·! · OIS towards IS MoX of Carboneäuresalzes per mole * Per contains. 3 · Sasinaeneeimipg saäh ^ ssp ^ e ^ 1 «. Saäureh marked, the« the V $ ®Q3 & waBam & t & @ fc EeJLlwptiOx ^ onoealfet and the SaIs der Carfmotture @ ä ^ ^ m ^: !> · Coherent naoh
that the PeroxTBonosulfa « eels der FöraeX KHSO ^ '«KgSO ^« 2TiSSOg and at SaIs der Carbonsture an Aoetat is. u Sosssnensetung naoh claim % _t characterized in that the acetate is Hatrluaaoetat. The sanitary facility according to claim 2, characterized in that the peroxynonosulphate is potassium peroxynonosulphate and the salt of the carbonic acid is hatritnnacetat, the composition also containing a buffer substance which is effectively acidic, to a 350% aqueous solution of the composition, which is 0.002 to 0 ₉ S £ -active oxygen from the above 309842/1617 BATH ORIGINAL Contains peroxymonosulphate, to a pH in the range of 5 to 10 to be set. 7. Composition according to claim 6, characterized in that the peroxymonosulphate is potassium peroxymonosulphate trippel salt of the formula KHSO ^ .K ₂ SO ^ .SKHSOc 1st and that the buffer substance belongs to the group sodium tripolyphosphate, sodium metasilicate, sodium tetrodium phosphate, disodium phosphate phosphate or sodium tetrasodium phosphate tri-sodium phosphate. 8. Composition according to claim 7, characterized in that that the weight ratio of sodium acetate to thorn ga » called triple salt 0.05 to 3.2: 1 is «noble the Composition Soda Contains in such an amount that a 3 liter aqueous solution of the composition has a pH » Has value from 5 to 10. 9. Composition according to claim 7, characterized in that that the weight ratio of sodium acetate to the ge * called Trippelaals 0.05 to?, 2: 1, Motel the Composition fetasodium pyrophosphate in such Set contains that a year solution of the composition has a pH of 5 to 10. 10. Composition according to claim 7, characterized in that the usual ratio of sodium acetate to com mentioned Triple salt is 0.05 to 3.2: 1, trobei the Composition Trisodium phosphate in such an amount that contains a 3-liter aqueous solution of the additive The intη pH value is from 5 to 10. »09842/1617 - 24 - BAD ORtGlNAL is PC-3464 11. Composition according to claim 7 # characterized in that that the weight ratio of sodium acetate to the mentioned triple salt is 0.05 to 3 * 2 j 1, the Composition contains disodium phosphate in such an amount that a ^ ige solution of the composition a Has a pH of 5 to 10. 12. The composition according to claim 10, characterized in that it consists essentially of 55 0EW. # Of the triple salt, is about 26.7 wt. ^ * Sodium acetate and about 8.3 wt.% Trina- m triumphosphat " 13 * Composition according to claim 11, characterized in that that they essentially consist of about 5 ^, 7% by weight of the triple salt, about 27.2 wt. ^ sodium acetate and about 13.1 wt. # Disodium phosphate. 14. Composition from an aqueous solution having a pH from 5 to 10, which is the peroxymonosulfate ion and 0.2 to 12 Mol of the aoylafcion of an aliphatic carboxylic acid old 1 contains up to 4 carbon atoms per Hol of the peroxymonosulfatlons which is present in the solution mentioned. 15 * Composition according to claim 14, characterized in that that the acylation ion is an acetate ion, whereby the LtSaung a puff from the group sodium tripolyphosphate, sodium metalate, Sodium tetraborate, disodium phosphate, soda, tetranatriuinpyi'ophoaphat and trisodium phosphate contains. 16. Composition according to claim 15, characterized in that it has a pH of 6 to 8, 909842/1617
- 25 - 17 · Process for the lead of textile fabrics «those with peroxymonosulphate Can be bleached, because it is characterized by the fact that one of the mentioned textile substances is exposed to it subject to a composition according to claim 14. 18 «Process for the lead-ing of textile materials, which are carried out by Peroxymonobulphate are bleached, daduroh labeled, that one of the mentioned textlien substances of the action subject to a composition according to claim 15. 19 · Process for bleaching textiles, partially are colored with sensitive dyes, characterized in that the substances mentioned are exposed to the effects subject to a composition according to claim 15. 20. A process for the bleaching of text lien substances that are partly colored with sensitive dyes, characterized in that the "one whitens the said substances with a composition according to claim 15 at a temperature of Jf, 8 to 100 ⁰ C. 909842/1617 - 26 -