Multiple width fiber strip and method and apparatus for its production
Номер патента: CA2126160C
Опубликовано: 23-09-1997
Автор(ы): Klaus P. Raufer (Deceased), Rudiger Dollhopf
Принадлежит: Rhone Poulenc Rhodia AG
Опубликовано: 23-09-1997
Автор(ы): Klaus P. Raufer (Deceased), Rudiger Dollhopf
Принадлежит: Rhone Poulenc Rhodia AG
Реферат: The invention relates to a multiple width fiber strip consisting of curled, interlaced filaments and having several zones extending in longitudinal direction of the fiber strip as well as at least one tear line (4) extending in longitudinal direction of the fiber strip, wherein the tear strength (daN) of the fiber strip, referred to the total titer (dtex) is at least about 1.7 x 10-4 daN/dtex (determined in analogy to DIN 53 834 Tl, February 1976, under a tension of 2.5 N). Further it relates to a method for producing one or several such fiber strips, with several separate bands (1, 2) being formed of substantially parallelly extending filaments and the formed bands being curled jointly to produce one or several curled fiber strips. The apparatus for carrying out this method is characterized by a transport roll pair (8, 9) for jointly transporting the supplied bands (1, 2) and a curling unit (10.1, 10.2, 11, 12) which is arranged after the transport roll pair (8, 9), for curling the bands (1, 2) leaving the transport roll pair. The invention makes possible, in the case of the production of a multiple width fiber strip with the tear line referred to, processing on a double skein filter rod machine with a single (individual) treatment section.
Multi-component elastic yarn, textile fabrics and method of making and apparatus thereof
Номер патента: US20150184319A1. Автор: Hoi Hung Eddie Yeung. Владелец: DAI CHUNG TRADING (HONG KONG) Ltd. Дата публикации: 2015-07-02.