Strand treatment method and apparatus

In the interlacing of a running textile strand by fluid treatment within a region of temporary lateral confinement, the improvement comprising confining the strand more closely in one lateral dimension perpendicular to the running direction than in the lateral dimension perpendicular thereto, and directing a stream of fluid onto the strand substantially perpendicular to the running direction and from along the bisector of the more closely confining lateral dimension.

Apparatus for interlacing textile strands comprising a housing with a longitudinal bore therethrough having a substantially rectangular cross-section, with the aspect ratio of the major lateral axis to the minor lateral axis being on the order of several to one, and a transverse bore intersecting the longitudinal bore substantially perpendicular thereto and to the minor axis thereof, the longitudinal bore being adapted to receive a running strand, and the transverse bore being adapted to receive fluid under pressure thereinto and to deliver it into the longitudinal bore and onto any strand therein.

Apparatus for interlacing the filaments of a multifilament textile strand, comprising a housing with a longitudinal strand-receiving bore therethrough having a substantially rectangular cross-section having major and minor transverse axes, a plurality of fluid-receiving bores intersecting the longitudinal bore from opposite sides perpendicular thereto and to the minor axis, the loci of intersection of the fluid-receiving bores with the longitudinal bore being offset along the longitudinal bore a distance up to the width of such a fluid-receiving bore.

In a method of interlacing a multifilament textile strand, the steps which comprise stuffer crimping the strand, running the stuffer crimped strand lengthwise past an interlacing locus, confining the strand circumferentially at the interlacing locus, and subjecting the strand to a fluid stream substantially perpendicular to the running direction of the strand whereby an interlacing effect is developed, said strand being confined at least several times as closely in one lateral dimension as in the lateral dimension perpendicular thereto.

A method of texturizing a multifilament textile strand including crimping said strand and then running said crimped strand through a fluid treatment entangling means said step of running said crimped strand through a fluid treatment entangling means includes confining said strand more closely in one lateral dimension perpendicular to the running direction than in the lateral dimension perpendicular thereto and directing a stream of fluid onto the strand substantially perpendicular to the running direction and from along the bisector of the more closely confining lateral dimension.

A method of interlacing the filaments of a multifilament textile strand, comprising running the strand lengthwise through a longitudinal bore having a pair of intersecting transverse bores, deflecting the strand downwardly by the flow of fluid from a first transverse bore and then deflecting the strand upwardly by the flow of fluid through a second transverse bore, the respective transverse bores being offset from one another at their intersection with the longitudinal bore by a distance approximately one diameter of width of such transverse bore, whereby the strand is formed into an S-shaped configuration in the longitudinal bore.