DE731241C - Process for the production of as neutral as possible, preferably liquid soaps - Google Patents

Description

Process for producing as neutral as possible, preferably more liquid Soaps The soaps useful as detergents, i. H. the alkali salts of the higher molecular ones Fatty acids are known to have two shortcomings: I. They are caused by the hardness of the Water precipitated and thus ineffective; 2. Their aqueous solutions are subject to @@ ylrolysc; they have an alkaline reaction and are therefore suitable for both skin and hair also the textile fiber.

Attempts to remedy these deficiencies last for many decades return. One got over the turquoise clear oils, which corresponded to their low foaming power as detergents are few @ ignored, more recently to the so-called alkalifrelen detergents, Its best-known representatives are the fatty alcohol sulfonates, the Isitlionsäitt and taurine fatty acid derivatives And the protein fatty acids are atoll products. You are w @ ittlh @ ld ul- @ mptindlicl the shepherds' artisans use water and do not hydrolyze under alkaline conditions. They refresh all the downside. since it is only through its less complicated procedure fatty acids become sufclbatt and dltlr are much more expensive than these. While So by deforming the soap molecule it was possible to obtain products that Both of the disadvantages of the soaps hardly have any more, the attempts made the same Effect can be achieved simply by adding additives to the soaps, so far only about 50 Hardness @ sensitivity successful. 'In recent years substances have been found which can be added to the soaps and the hardness components of the water Able to eliminate complex salt formation; known are the alkali lexametaplosphates. the tertiary sodium salt of triglycolatidic acid and the alkali salts of ethylenediaminetetraacetic acid.

It was found now, with the help of the salts of @ tlylendia @ int @ tracacetic acid tightly only the Hirteempltidlllilkit the Seif @ l w @ ltgeb @ nd remove, but also Their alkalinity is completely unclear. Discovery Cll The quaternary triitlanolaminesa @@ thyleldiamine tetraacetic acid become soaps Oul mixtures of alkali and or tri-, ithancllanainalzcn this acid are added. Which in. / t molar solution have an @ H value of about @ to 7.

The tetravalent Äthylendiami @ era @ ssigsäure finitely forms three alkalis Series of water @ soluble salts; of them the secondary reacted sourly, the tcrtiirel sclwacl alkaline, the quaternary strongly alkalisct. The pH of the mineral solutions the potassium salts z. B. for doll sctundiren is 4.5 for the tertiary 8, o, at the quarternary i in. From these sees tan can be finite L @ i @ htigk @ it by mixing Solutions of any desired p @ -value in the non-white, harmless alkaline Make D @ rci @ h from p @ 7 his S; one uses these soaps, in particular @ üssieen, to. so you can reduce their p @ value up to 7 and dartnter.

Similar neutralizing effect as the mixtures of the schielenwertigen Also has the quaternary triethanolandn salt of ethyl @ dia @ i @ tetraacetic acid, which reacts weakly alkaline and in 1/1 molar solution the p @ -value So @at. 'Man llll with 1hm or s @ in @ t mixture with a quaternary or other alkali salt lzw. neutralize the corresponding mixed saline soaps to a large extent and grade the i @ value of the same in learning area 7 lis @ as you wish.

One leaches to the same result, if instead of the alkali soaps and the triethanolamine salt of Ätlleiidiamiit @tra- @sigsäure trietanolamine soaps and beverages of alkali salts of ethyl @ndiamitetraacetic acid are used. It has been shown, however, that the p @ value of the aqueous solutions of the triethanolamine soaps is different for the individual fatty acids. While the p @ value of a solution of the triethauolanine is above 5.2, the point of impact of phenolphthalein, the solution of the triethauolanine reacts. Example i ; oo parts potash soap, entlialtmid 25f, # ci fatty sweet, e6; inolar solution: g of the 1 of the I: \ thvlen- tertiary potassium salts @ dianiin- I Letl'a- O6 11101arC 1_ÜSLI = des secondary potassium salt,; crazy, 50 - I'ropy1enh-kol, ; o - isopropyl alcohol, 15 - sulfonate of iniuryl alcohol, d estilliertes water, oho parts. The soap has a pll- @ ""el't 1 "i) 21 i 2i1 '; 1 .O; the dilution 1: 5 finite water of 2 IlÄrtc remains Lingere Zcit .clear. Ethanolamine about neutral and reddened even with a large excess of phenolphthaline base. 'One can finitely neutralize the @ i @ i @ tlsaureif Triätlano @ anin Alkalis @ if @ n; Di @ Triäthanolaminseifet dcr-Ötsäure and the K @ kos-2nd Palmk @ rnfetssäur @ n have a similar effect.

The soaps, ethyleniamine etraacetic acid, are important for practice and from V @ rtcil contain salts. in solutions in hard water show lower p @ values than in Solutions of finitely distilled water act as hardness builders and bicarbonate in this phenomenon together.

S @ ifcn with a pt-ert of 8 and below tend to be in snappy dilutions in addition to becoming cloudy after standing for a while as a result of the separation of fat saturation. This turbidity HIM prevent or delay himself through additives of various Ar @, z. H. by polyhydric and monohydric alcohols. through gc ringe M @ ngen (around Il) from Dislelgttoret, such as alcohol sulfonates. Fettsälrekondensa @ onsprodukt @ n and similar, by lignin @ ul @ osaure S @ lze u. I. 1n. If you wash with @ arn @ m water, the cloudiness does not occur.

The technical advantages of the s @ ifen according to the invention can mainly be seen in the fact that their yield is so much greater as a result of the elimination of the hardness of the water. that they are far superior to ordinary soap in their washing effect, and (that thanks to their weak alkalinity they do not attack skin, hair and textile fibers, which you can easily convince yourself by a washing experiment to compensate for the previously existing noticeable lead of so-called alkali-free detergents worldwide, but also to achieve significant savings in fermentation acids. Example a 500 parts of potash soap. containing = 5c? -cl fat- acids; this consists of 2o1111 Oil fat bag, 6o, 1 coconut fetlSäUl'C, 30 @ ',, rlil'iIIOISiitlI-C. 133 mohlrC Iikan, g des 1 l @ r quartärmi Katittnisalze #: \ lh: @ en- = oo - 1 L inol.arc @ üstnt # @ des; qmn.mllI'rialllaltnl- Len '; l- t ussIW; iUft, allllll> a1lCS too - 1'ropylcngikol, ( ); - distilled water, i oho Tuilc. Dic> c Suite has a pll - @@ "crt from" twa , o until the dilution t: 5 tnit Wa-, scr vccn 12- II: it-tc # bIribt klirr. Example 3 Example q. 500 parts potassium soap, containing 250.0 fat- 500 parts trietlranolamine soap acids; these consist of 2ool, ö 250'o fatty acids, order this Olein; 6o0'o coconut fatty acid, 200_o from 2oo'o olein, 6oo "o I1okoS- Ricinoleic acid, hydrofluoric acid, 200; 'o P-, icllio, lic acid, 300 - 1/1 molar solution of the i der 30a - 1/1 molar solution of the der tertiary potassium salt I tertiary straw salt.es iylen- Eth @ -len- diamine- j3 - 1/1 molar solution of the diamine 33 - 1/1 molarc solution of the tetra- qttartären Triäthano @ l- tetsa- c: SS1 @ SilU1'G quaternaryllaliuruSalzes # essigsätlre, , amine salt - 5o - propylene glycol, 50 - propylene glycol, 5o - isopropylalkodiol, 50 - isopropyl alcohol, 25 - lignillsulfosatires _sodium, 25 - ligninsulfos: auresodium, 5 _ sulfoi.iat des 1, aurylalkohols, 5 - sulfonate of lauryl alcohol, 37 - distilled water, 37 - distilled water, 100o parts. iooo parts. I. This soap has a pH of about 7, o; the dilution I: 5 with water of 12 ° hardness remains clear for a long time.

All four soaps remain on when diluted with water of I2 ° hardness the hundredfold still completely clear; as they are further diluted, they become gradual always stronger This soap has a pII-Wcrt of approx. 7, o; the dilution I: 5 with water of I2 hardness, Engere Geit remains clear.

opalescent clouded, but retain their foaming power up to one Dilution to about the two-tenth factor. The thinning reddened phenolphthalein not.

Claims (3)

PATENT CLAIM: I. Process for the production of neutral, preferably liquid soaps, characterized in that these are the quaternary Triethanolanine salt of ethylenediaminetetraacetic acid or trietbanolamine genes undior adding alkali salts to this acid, which in 1/1 molar solution have a p @@ value from about S to 7. 2. The method according to claim I, characterized gekennzcichnet, that to carry out the process the triethanolamine soaps of oleic acid, ricinoleic acid as well as coconut or palm kernel fatty acids are used exclusively or in part. 3. The method according to claim I, characterized in that additional dispersants, such as fatty alcohol sulfonates, fatty acid condensation products, lignosulfonic acid salts or similar used.