DE1769844A1 - Fabric softeners - Google Patents

Description

Laundry softeners It is known that textiles, and especially terrycloths and underwear, become hard and rough after repeated washing processes. This is particularly the case when the time-saving washing process, ie in the washing machine and with subsequent rapid drying, is used.

It is also known (German Patent 914 490) that you can increase the utility value of textiles if you wash them with higher molecular weight cation-active compounds, expediently mixed with emulsifiers. treated gatoreng. Laundry that has been treated with agents such as those listed in the cited reference already shows advantages over non-aftertreated laundry, but the absorption and distribution of the softener on the textile material does not yet take place with sufficient uniformity post-treated laundry left something to be desired.

It has now been found that the above-mentioned disadvantages to lasäen avoid the prior art, when fabric softening enthaltenz based on relatively high molecular cation-active compounds a) 11-37 Gewichtsprozentg preferably 18 to 22 weight percent, of products # Mm erhältgdurch rolling-up of a Kol a compound of formula -in the R denotes Oxäthyl- or Oxypropylrent # with a Kol of a compound of the formula in which R 1 denotes an n-alkyl radical with 16 to 20 carbon atoms, at temperatures of 120 a 190 0 and preferably 160 bin 170 0 0, and subsequent action a bole of an acid of the formula in which R2 denotes a alkyl or oxalkyl radical with 1 to 2 carbon atoms at 50 to 90 ° C., preferably 80 to 85 ° C .; b) 33 to 59 percent by weight, preferably 48 to 52 percent by weight, of products # obtained by reacting one col of triethanolein with one col of a compound of the formula in which Ri has the above meaning: at temperatures of 120 to 190 ° C., preferably 160 to 170 ° C. and subsequent action of a fetching acid of the formula In R2, the meaning given above has the meaning at 50 to 90 OC *, preferably 80 to 85 OC; c) 1 to 5 percent by weight, preferably 3 to 4 percent by weight, of a compound of the formula 4 is a iiaseeratoffatcm in which R 3 is an n-Alkylreet having 8 to 18 carbon atoms, and R or Oxyäthylrest means # d) remainder to i00 weight percent b # Tis; ur and conventional additives. The component a) is Herl-e .-, telltg by a kiol N-OxMthyläthylen-diamine or OAER with one mole Ialmitinritures Gtearinuüure arachidic acid or mixtures aue serve in'Temperuturbereich.von acids 120 to 180 0 Co preferably at about 160 to 170 0 C is implemented. The condensation ends in a period of about 4 to 10 hours. The end of the reaction is determined by means of the acid number; this should be below 7 mg KOH / g.

There are formed next to each other acid amides and esters # so that receives nian a mixture in the condensation.

Hydrazine hydrate is, as is customary in such condensations, as Lightening agent added.

The mixture of condensation products is cooled to 70 to 0 G and in the presence of water and a solubilizer, for example 1,2-propylene glycol, the equivalent amount of formic acid, acetic acid, glycolic acid or lactic acid is added. The corresponding salts are formed. Component b) is prepared analogously to component a). Lan adds triethanolamine to a drop of triethanolamine, kol of a higher fatty acid such as lalmitic acid, itearic acid or arachidic acid or mixtures of these acids and heated to 120 to 180 0 09, preferably to about 160 to 170 0 C. The condensation lasts between 4 and 10 z; t. The acid number, which should be below 7 μg KOH / mg product , is also measured.

In this condensation reaction, mono- and diesters and smaller L.en, -en triesters arise side by side. Here too, hydrazine hydrate is added as a lightening agent during the condensation. After the condensation has ended, the mixture is cooled to 70 to 90 ° C. and the equivalent amount of a lower carboxylic acid, such as formic acid, acetic acid, glycolic acid or lactic acid, is added in the presence of water and a solubilizer (e.g. 1,2-propylene glycol).

Since components a) and b) are obtained in the same way, it is advisable, because of the lower cost, to prepare both products in the same batch as a mixture.

The salts of diethanolamine or triethanolamine and alkylbenzenesulfonic acids with 8 to 18 carbon atoms in the alkyl chain, such as, for example, octylbenzenesulfonic acid, nonylbenzenesulfonic acid, decylbenzenesulfonic acid, undecylbenzenesulfonic acid, undecylbenzenesulfonic acid, Mixture of paraffin benzol sulfonic acids with an alkyl chain with 10 to 18 carbon atoms, the average chain length of which of the alkyl chain is 12 to 14 carbon atoms.

The final setting of the laundry softener is usually added with even smaller amounts of non-ionic detergent substances such as fatty alcohol polyglycolate or alkylphenol polyglycol ether, since this increases the resistance to hard water, and small amounts of perfume are also added. Example 1 89.0 kg of stearic acid techn. were melted in a stirred tank and condensed with the addition of 3290 kg of triethanolamine 11 9 0 kg of β-aminoethyl amine anol and 193 kg of hydrazine hydrate 24 Aig at 160 am-170 0 6 hours.

12590 kg of the resulting condensation product were at 70 to 90 0 0 with constant stirring with 2590 kg of 192 propylene glycol 4295 kg of glycolic acid 57 Aig 295 kg of hydrazine hyarate 24 # gig 3590 kg of water 7 # 5 kg of n-alkylbenzolphonate triethanolamine polyglycol ether 50 Aig and 1295 kg of pettalcohol 20 to 25 Vols of ethylene oxide mixed. Example 2 7198 kg of stearic acid techn. were melted in a stirred tank and, with the addition of 2195 kg of triethanolamine, 1193 kg of 0-aminoethylaminoethanol and 190 kg of hydrazine hydrate were condensed for 24 hours at 160 to 170 ° C. for 112 hours.

10090 kg »of the Yondenaationsproduktes obtained were at 70 to 90 0 0 with constant stirring with 2090 kg 1,2-propylene glycol 2990 kg lactic acid 80 % 290 kg hydrazine hydrate 24 Aig 349-0 kg water and 1490 kg n-alkylbenzenesulfonate triethanolamine 50 % mixed.

Comparative Example 1 67 percent by weight of getyltrimethylammonium chloride 20, percent by weight of isopropanol and 13 percent by weight of water are mixed with one another. Comparative Example 2 512 percent by weight of ethyltrimethylammonium chloride, 0.8 percent by weight of alkylphenol oxyethylate, 17.0 percent by weight of isopropanol and 77.0 percent by weight of water are mixed with one another. The surprising technical progress achievable with the inventive formulations above the relevant prior art indicated above lies in the softening effect and in the absorbency of the treated items of laundry. The acidity The absorbency of the treated textiles was determined with the "Saugprilfgerüt nach Oxb-öcliur-ter" (cf. Seifen-Öle-Fette-Wachse-Ur. 25- (lgbl) -seite ö97). As krüferewebe selects one Frefelder StanuartE.ewebe cotton, and the Verßuchaeinstellungen were 10 ml Neichmacher / kg dry tissue eini-and replaces them in a Flottenverhültnis 1: 10 dinuten treated during 3). If the application method quakes, the same tests were carried out on the padder.

The suction times are p'in seconds: Plasticizer b.iurf # - 'liii-keit in.seconds after the Tauet.ver-f -. Firen padding process Example 1 46 Example 2 307 50 Comparative example 1 #: 0 68 Compare example 2 7 #) 100 It turns out that the absorbency of the textile goods which have been post-treated according to the invention turns out to be considerably lower than that of such textile goods which have been treated according to the relevant prior art. The softening effect was determined subjectively on white Prottee towels using 5 g of finished product per liter of liquor (drinking water) by 9 Teutpereons. Pertiaproduct 'Dip process misc . Washing machine ten types fleet 1140 1:10 1s5 A B C Example 1 2 1 1 1 1 1 Example 2 2 2 1 1 1 1 Comparative example 1 1 2 1 3 1 1 Comparative example 2 1 1 2 2 3 1 very soft, 2 m soft 3 - sufficient When the test fabrics treated in the washing machine were repeatedly tested, 9 test persons found that, with the same application arrangement, the softening effect, which was caused by the formulations of the comparative examples, varied significantly as a result of uneven drawing and distribution on the textile.

This could be demonstrated when using the inventive recipes notobsactite'l v-erJen.

Claims (1)

Patent claim fabric softening composition based on high molecular weight cationic-active compounds, comprising a) 11-37 Gewichtsprozentg bis.22 preferably 18 weight percent, of products obtained by Umaetzung from an idol a compound of Yorwel in the R denotes the oxattyl or oxypropy12est with a. one mole of a compound of the formula wherein R, a n-alkyl radical having 16 to 20 carbon atoms, at temperatures of 120 0 bis.190 preferably at 160 to 170 0 G, Bind subsequent exposure einde Moles an acid of formula In der.R2 an alkyl or Oxalkylrest 0 with 1 to 2 carbon atoms, at 50 to 90 C is preferably 80 to 85 # 00; b) 33 to 59 percent by weight, preferably 48 to 52 percent by weight, of products which are obtained by reacting one mole of tri # nthanolamine with one mole of a compound of the formula in which Ri was the meaning given above, at temperatures of 120 to 190 oC, preferably 160 to 170 oce and subsequent exposure to a volen of an acid of the formula in which R 2 has the meaning given above, at 50 to 90 OCP preferably 80 to 85 001 e) 1 to 5 percent by weight, preferably 3 to 4 percent by weight of a compound of the formula - In which R is an n-alkyl radical with 8 to 18 carbon atoms and R4 is a hydrogen atom or an oxyethyl radical, d) the remainder is 100 percent by weight of water and customary additives.