Invention Grant
- Patent Title: Process for forming a high loft, nonwoven web exhibiting excellent recovery
-
Application No.: US15428265Application Date: 2017-02-09
-
Publication No.: US10704173B2Publication Date: 2020-07-07
- Inventor: Douglas B Brown , Jeffrey D Stark , Mohammad A. Hassan
- Applicant: Biax-Fiberfilm Corporation
- Applicant Address: US WI Greenville
- Assignee: Biax-Fiberfilm Corporation
- Current Assignee: Biax-Fiberfilm Corporation
- Current Assignee Address: US WI Greenville
- Agency: Boyle Fredrickson, S.C.
- Main IPC: D04H1/559
- IPC: D04H1/559 ; D04H1/56 ; D04H3/02 ; D01D5/26 ; B29C48/05 ; B29C48/00 ; D04H1/74 ; D04H3/16 ; D04H1/407 ; B29L7/00

Abstract:
A process for forming a high loft, nonwoven web is disclosed. The process includes introducing a single molten polymer to a die having a plurality of nozzles. Emitting the molten polymer through the nozzles to form a plurality of filaments. Using air streams to facilitate movement and drawing of the filaments. Directing the filaments, which are transformed into fibers, towards a pair of heated moving surfaces. The pair of heated moving surfaces forming a convergent passage having an entry and an exit. Depositing the fibers into the entry of the convergent passage and routing the fibers between the pair of heated moving surfaces in a machine direction to form a high loft, non-woven web. The web having a fiber size distribution of from 0 μm to about 15 μm with at least about 25% of the fibers being above 4 μm.
Public/Granted literature
- US20170211216A1 PROCESS FOR FORMING A HIGH LOFT, NONWOVEN WEB EXHIBITING EXCELLENT RECOVERY Public/Granted day:2017-07-27
Information query
IPC分类: