Yarns for protective garments and manufacturing methods thereof
AssigneeFILTES INTERNATIONAL S.r.l.
InventorsSergio Carrara, Giuliano Gandossi
Life of this patent
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Abstract
Yarns are provided which may include a core having a continuous filament, a first covering of said filament, obtained by winding a first yarn in a first winding direction, a second covering superposed over the first covering, made by winding a second yarn in an opposite winding direction, so as to form an open-coiling cover, at least one third covering, obtained by winding at least one sliver having discontinuous fibers in the same winding direction as the second yarn, positioning the fibers at least in the interspaces of said open-coiling cover. Durable and comfortable textiles and garments made from such yarn and methods of making same are also provided.
Claims15
A yarn comprising:
- a core which comprises:
- i) at least one continuous or discontinuous filament;
- ii) a first covering of said filament, obtained by winding a first yarn in a first winding direction with a first number of windings (NW1) per linear meter;
- and
- iii) a second covering superposed over the first covering, made by winding a second yarn in a second winding direction, opposite the first, with a second number of windings (NW2) per linear meter, so as to form an open-coiling cover;
- where the second number of windings is lower than the first number of windings;
- and
- at least one third covering, obtained by winding at least one sliver comprising discontinuous fibers in the same winding direction as the second yarn, positioning said fibers at least in the interspaces of said open-coiling cover;
- the formation of the third covering entailing a distancing of the coils of the first covering and a reduction of the interspaces of the open-coiling cover to receive and retain said fibers.
A method of making a yarn comprising the steps of:
- providing at least one continuous filament;
- winding a first yarn in a first winding direction with a first number of windings (NW1) per linear meter to obtain a first covering of said filament;
- winding a second yarn in a second winding direction, opposite the first, with a second number of windings (NW2) per linear meter, so as to superpose a second covering with an open-coiling cover on the first covering and thereby form a core;
- where the second number of windings is lower than the first number of windings;
- and
- creating at least one third covering of the core by winding at least one sliver comprising discontinuous fibers in the same winding direction as the second yarn so as to position said fibers at least in the interspaces of said open-coiling cover;
- the formation of the third covering entailing a distancing of the coils of the first covering and a reduction of the interspaces of the open-coiling cover to receive and retain said fibers.
Dependencies are inferred from the claim text.