TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 DEF

... a bicomponent filament with a core of high melting point polymer surrounded by an outer coaxial sheath of lower melting point polymer.  2, fiche 1, Anglais, - heterofilament

Record number: 1, Textual support number: 1 CONT

A special technique of introducing a second polymer into a thermally bonded geotextile is to incorporate some heterofilaments within the geotextile matrix. These filaments simply consist of one polymer enclosed within a sheath of another polymer. A good thermal bond can be achieved between all the constituent filaments provided the outer sheath is made from the same polymer as any monofilaments within the geotextile matrix.  3, fiche 1, Anglais, - heterofilament

Fiche 1,  Justifications,  Français

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

The bonding methods include :(1) homofil bonding, in which all filaments are composed of a single polymer type, but some of the filaments have different melting characteristics. Bonding is achieved by a high-temperature calendering operation, accomplished by passing fabric between two hot rollers; and(2) heterofil bonding, in which some of the filaments comprise two types of polymers having different melting points(heterofilaments), while others have only one polymer(homofilaments). The heterofilaments have different softening characteristics from the homofilaments, and strong flexible bonds can therefore be formed at the heterofilament crossover points by controlled application of heat and pressure to fuse only the lower melting point polymer forming the sheat, while leaving the core and homofilaments unaffected.  1, fiche 2, Anglais, - homofilament

Fiche 2,  Justifications,  Français

Fiche 2,  Justifications,  Espagnol