METHOD FOR SPINNING FANCY YARNS, MACHINE FOR SPINNING FANCY YARNS WITH SAID METHOD AND FANCY YARN PRODUCED WITH SAID METHOD

摘要

Method for spinning fancy yams (16) comprising the steps of: a) injecting continuously a bundle (3) of base fibres to a bundle (3) of base fibres in a drafting train (1), b) when said bundle (3) of base fibres is continuously injected, injecting intermittently a bundle (10) of effect fibres to said same drafting train (1) to add intermittently said bundle (10) of effect fibres to said bundle (3) of base fibres, and after the injection of step b) the following step is carried out: c) acceleration of the injection speed of the bundle (3) of base fibres for producing a slubby (17) in said bundle (3) of base fibres, said acceleration being done at the moment when a fragment of the bundle (10) of effect fibres is added to the base fibres, the injection place of said fragment matching with said slubby (17). The fancy yam (16) manufactured by the method comprises a plurality of slubbies (17) of said bundle (3) of base fibres, each of said slubbies (17) including one of said fragments of a bundle (10) of effect fibres matching with an over-thickness of base fibres, said over-thickness being obtained by the punctual reduction of the drafting ratio of the bundle (3) of base fibres.