| 摘要 |
The present invention discloses the use of ethercarboxylates for lubricating textile fibres, preferably spinning fibres. These ethercarboxylates have the general formula (I) <?in-line-formulae description="In-line Formulae" end="lead"?>R-(OCH<SUB>2</SUB>CH<SUB>2</SUB>)<SUB>n</SUB>-O-CH<SUB>2</SUB>COOX (I) <?in-line-formulae description="In-line Formulae" end="tail"?> where: R represents a C<SUB>6</SUB>-C<SUB>22 </SUB>aliphatic hydrocarbon chain, saturated or unsaturated, linear or branched, n is a number between 0.3 and 50, X is hydrogen, an alkali metal, an ammonium cation, an alkanolammonium cation or a C<SUB>6</SUB>-C<SUB>22 </SUB>alkylammonium cation. In addition, the present invention provides a process for lubricating textile fibres that consist of placing in contact these textile fibres with ethercarboxylates of general formula (I).
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