对于纤维结构施加甲醛和acylnitrilfreie丙烯酸类树脂分散体的合并，树脂组分包括至少40重量含有在烷基中至少4个碳原子，任选地至多57重量％的丙烯酸烷基酯或甲基丙烯酸酯具有至多丙烯酸烷基酯和/或甲基丙烯酸酯的％ 3在烷基或苯乙烯构成C原子，小于1重量％的丙烯酸或甲基丙烯酸和不饱和羧酸的3至15重量％的羟烷基酯和任选的其它单烯键式不饱和单体。 所述固结纤维结构由低粘合剂煮沸洗涤损耗和高的湿强度为特征。

For the consolidation of fibrous structures formaldehyde and acrylnitrllfreie acrylic resin dispersions are applied, the resin component consists of at least 40 wt .-% of alkyl acrylates and / or methacrylates containing at least 4 carbon atoms in the alkyl radical, optionally Falla up to 57 wt .-% alkyl acrylates or methacrylates having at most is constructed 3 carbon atoms in the alkyl or styrene, less than 1 wt .-% acrylic or methacrylic acid and 3 to 15 wt .-% hydroxyalkyl esters of unsaturated carboxylic acids and optionally other monoethylenically unsaturated monomers. The consolidated fiber structure characterized by low binder boil wash losses and high wet strength.