公开(公告)号：EP1558796B1

公开(公告)日：2008-10-01

申请号：EP03766144.4

申请日：2003-07-09

申请人： Oerlikon Textile GmbH & Co. KG

发明人： HELBING, Ulrich ,  STAUSBERG, Georg ,  ALEXANDER, Jörg ,  HASENBURG, Jürgen

IPC分类号： D01D1/06 ,  B29C47/10 ,  B29B7/94 ,  B01F15/04 ,  F04C2/08 ,  F04C11/00 ,  F04B23/02

CPC分类号： F04C14/08 ,  B29B7/94 ,  B29C47/0023 ,  B29C47/1063 ,  B29C47/364 ,  B29C47/367 ,  B29K2105/0005 ,  B29K2105/0032 ,  B29K2995/002 ,  D01D1/065 ,  F04B13/00 ,  F04B23/14 ,  F04C11/001 ,  F04C13/001 ,  F04C13/002 ,  F04C2220/24 ,  F04C2270/18 ,  Y10T137/86139

摘要： The invention relates to a device and method for injecting a liquid colour into a polymer melt, for which a dosing pump with a dosing inlet and a dosing outlet is provided. The dosing inlet is connected to a tank and the dosing outlet to a supply means leading to the polymer melt. According to the invention, the liquid colour may be introduced into the supply means with as exact and consistent a dosing of the polymer melt as possible, whereby the dosing inlet of the dosing pump is connected to a supply outlet of a supply pump, connected to the tank with a supply inlet. A supply pressure is thus generated at the dosing inlet of the dosing pump, which can be matched to an injection pressure at the dosing outlet of the dosing pump.