Title:
セルロースフィラメントのスパンボンド不織布を製造する方法及び装置
Document Type and Number:
Japanese Patent JP5065873
Kind Code:
B2
Abstract:
The filaments are spun by a spinneret (1) from a cellulose solution. They enter a cooling chamber (2) with two cooling sections (2a, 2b). Here the filaments are subjected to process- or cooling air in two different quantities, temperatures and/or humidities. The filaments are spun as lyocell filaments. The solution of cellulose is a mixture with water and a tertiary amine oxide. The cellulose concentration is 1-22 wt%. Air is supplied to the two sections, 2, 2b respectively, in a preferred ratio 4.5 : 10. Temperatures in these sections are 18-80[deg] C (2a) and 18-35[deg] C (2b). Aerodynamic stretching (4) follows cooling. This in turn is followed by laying, but first it is ensured that the cellulose is coagulated. Following laying, the fleece is treated with an aqueous medium or is washed. It is then dewatered. The preferred spinneret perforation density is 1.5-7.5 holes/cm 2>. The connection between cooling chamber and stretching unit is sealed from the exterior. A laying unit (6) with a diffuser (13, 14) is used between the stretching unit and the further laying equipment. An independent claim IS INCLUDED FOR the equipment used.
Inventors:
Hans-Georg Gois
Hans-Berndt Krunter
Hans-Berndt Krunter
Application Number:
JP2007328121A
Publication Date:
November 07, 2012
Filing Date:
December 20, 2007
Export Citation:
Assignee:
Leifenhauser Gesellschaft Mito Beschlenktel Haftung und Companion Commande Date Gesellschaft Maschinenfabrik
International Classes:
B29C48/92; D04H3/013; D01D5/04; D01F2/00; D04H3/015; D04H3/16
Domestic Patent References:
| JP10505886A | ||||
| JP2004003080A | ||||
| JP2002517630A |
Attorney, Agent or Firm:
Mitsufumi Esaki
Blacksmith
Blacksmith