DE641190C - Process for washing and carbonizing raw wool - Google Patents

Description

Process for washing and carbonizing raw wool In the main patent 639 535 describes a process for washing and carbonizing raw wool, where in a single work process the washing of the raw wool and the preparation for carbonization take place in such a way that, with the addition of C sulfonic acids, the aliphatic or alicyclic series with at least ao carbon atoms in the molecule or their salts _ the usual carbonizing agents are used.

It has now been found that in the same way also C sulfonic acids general formula R-X Y- (S 0, H) "can be used where R is in agreement with the main patent an alkyl or alkylene group with at least 10 carbon atoms or is a cycloalkyl group, X is oxygen, sulfur, a substituted or unsubstituted imino or a sulfone group and Y can be a short, aliphatic Denotes a chain or an aromatic radical which is unsubstituted or hydroxyl-substituted could be. The terminal sulfonic acid group or groups are carbon-bonded.

For the purposes of the process, for example, ß-octadecenyloxyethanesulfonic acid is suitable, it being possible for the dodecyl, myristic, cetyl, octadecyl group to take the place of the octadec_enyl group. Substances of the type der_3-laurylthio-2-oxypropane-x-sulfonic acid can also be used. The aromatic amino- or aminooxysulfonic acids which are substituted in the amino group by at least one high molecular weight hydrocarbon radical of the aliphatic or acyclic series, such as, for example, the 2-dodecylaminonaphthalene-6,8-disulfonic acid, are suitable. Compounds of the p-dodecyl mercaptobenzenesulfonic acid type are also useful.

The proposed substances are used as described in Art and way how. described in the main patent. A common carbonizing sulfuric acid for example 0.2% 3-laurylthio-2-oxypropane-i-sulfonic acid C12 H2s- S-C H2- C H 0 H-C H2 -S 03H added and raw sweat wool treated with it. The wool is then dried at 100 ° after a brief spin-off. It'll be a good one Carbonization effect achieved. The neutral washed fiber material can be acidic Dye wool dyes evenly and without staining.

Claims (1)

PATENT CLAIM: Modification of the procedure according to Hau t4 .; patent 639 535. characterized. instead of the C- # i 'used there Fonic acids those of the general formula RXY- (S03H) x or their salts are used, where R is an alkyl or alkylene group with at least xo carbon atoms in the molecule or a cycloalkyl group, X is oxygen, sulfur, a substituted or unsubstituted imino or a Sulphone group and Y is a short, aliphatic chain or an aromatic radical, which can be unsubstituted or hydroxyl-substituted.