Melt spinning process
Номер патента: GB867194A
Опубликовано: 03-05-1961
Автор(ы): Eric Ivan Riseley
Принадлежит: Imperial Chemical Industries Ltd
Опубликовано: 03-05-1961
Автор(ы): Eric Ivan Riseley
Принадлежит: Imperial Chemical Industries Ltd
Реферат: <PICT:0867194/IV (a)/1> <PICT:0867194/IV (a)/2> In a melt-spinning process of the type in which molten polymer is extruded through the holes of an annular spinneret and the filaments so made are subsequently stretched so that the denier of each filament does not exceed 2,5, an annular spinneret is used in which the holes are arranged in at least four compact groups each containing not more than 25 holes, the distance between the centres of the holes within a group being at least 0,06 inches and the shortest distance between the centres of the holes in adjacent groups being at least 0,3 inches. As shown, groups of holes 1 are arranged in the trough 2 of a spinneret plate 3. Use of such a spinneret enables filaments and yarns to be made which show 'short-term denier variability' (i.e. variability of the drawn filament and yarn deniers between successive short lengths of yarn) to a less extent.
Melt spinning method and spinning spinneret of flat cross section synthetic fiber
Номер патента: KR100222724B1. Автор: 윤준영,강태현,최영백. Владелец: 구광시. Дата публикации: 1999-10-01.