109 besides the compulsory components a b and c where r is a linear saturated alkyl chain containing 8 to 22 carbon atoms and g p is a glycoside or oligoglycoside unit with a degree of oligomerization x of 1 to 10 for deinking waste paper alkyl glycosides corresponding to general formula iv are very well known surface active agents which can be obtained by acetalization from sugars and aliphatic primary alcohols containing 8 to 22 carbon atoms a preferred sugar component glycoses is glucose although fructose mannose galactose telose gulose allose altrose idose arabinose xylose lyxose libose and mixtures thereof may also be used by virtue of their ready availability and their favorable performance properties the acetalization products of glucose with fatty alcohols obtainable for example from natural fats and oils by known methods more particularly with linear primary saturated and unsaturated c 8 22 fatty alcohols are preferably used so far as the glycoside unit g p is concerned both monoglycosides p 1 where a sugar unit is attached to the fatty alcohol by a glycoside linkage and oligomeric glycosides with a degree of oligomerization p of 2 to 10 are suitable mixtures of mono and oligoglycosides are generally present alkyl glycosides iv where r is an alkyl containing 8 to 22 carbon atoms and g p is a glycoside or oligoglycoside unit with a degree of oligomerization p of 1 to 10 are particularly suitable in one most particularly preferred embodiment r is an alkyl group containing 8 to 14 carbon atoms the average degree of oligomerization is preferably in the range from 1 to 1 5 fatty alcohol polyglycol ethers may be characterized by general formula v where r 9 is a linear saturated alkyl chain containing 8.