Invention Grant
- Patent Title: Method and apparatus for heating nonwoven webs
- Patent Title (中): 非织造纤维网的加热方法和装置
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Application No.: US10207627Application Date: 2002-07-29
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Publication No.: US08129297B2Publication Date: 2012-03-06
- Inventor: John C. Cleary , Michael C. Davis , Todd A. McCoy , Edgar N. Rudisill
- Applicant: John C. Cleary , Michael C. Davis , Todd A. McCoy , Edgar N. Rudisill
- Applicant Address: US DE Wilmington
- Assignee: E. I. du Pont de Nemours and Company
- Current Assignee: E. I. du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: D04H1/00
- IPC: D04H1/00

Abstract:
A process for drying/heat-treating nonwoven webs in which the web is partially dried under tension in a first drying zone and further heat treated under low tension or in a substantially tensionless state a second drying zone. The process significantly reduces the occurrence of stretch-type defects in the nonwoven webs.
Public/Granted literature
- US20040016143A1 Method and apparatus for heating nonwoven webs Public/Granted day:2004-01-29
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