Method of making pile fabrics with deformed pile-thread ends
AssigneePatax Trust Reg.
InventorHugo Buhler
Life of this patent
Estimating the term…
Abstract
Two warp sheds are formed from warp threads at least some of which are meltable. The warp threads are preheated to make them deformable and weft threads are inserted into the respective sheds and beaten-up in order to form two superimposed fabrics which are connected by the meltable warp threads. During the beating-up the weft threads and the meltable warp threads are simultaneously heated so as to make them adhere to one another. The resulting fabrics are cooled to reverse the deformability of the meltable warp threads, and thereupon the latter are severed intermediate the fabrics by application of heat while the severed ends of the meltable warp threads are simultaneously deformed.
Claims15
A method of making separable pile-type fastening fabrics, comprising the steps of forming two warp sheds from a plurality of warp threads of which at least some are meltable;
- preheating the warp threads to make them deformable;
- inserting weft threads into the respective sheds;
- beating up the inserted weft threads to form two superimposed fabrics which are connected by said meltable warp threads, and during such beating up both heating and adhering the weft threads and said meltable warp threads together;
- cooling the resulting fabrics to reverse the deformability of said meltable warp threads;
- and severing said meltable warp threads in a plane intermediate said fabrics by application of heat so as to obtain two fabrics each having a pile of meltable warp threads, while at the same time also deforming the severed ends of said meltable warp threads of said two fabrics so as to form such ends with terminal enlargements.
Dependencies are inferred from the claim text.