发明授权
US06752907B2 Wet crepe throughdry process for making absorbent sheet and novel fibrous product
有权
用于制造吸收性片材和新型纤维制品的湿绉纱干燥工艺
- 专利标题: Wet crepe throughdry process for making absorbent sheet and novel fibrous product
- 专利标题(中): 用于制造吸收性片材和新型纤维制品的湿绉纱干燥工艺
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申请号: US10042513申请日: 2002-01-09
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公开(公告)号: US06752907B2公开(公告)日: 2004-06-22
- 发明人: Steven L. Edwards , Greg A. Wendt , Robert J. Marinack , Michael J. Vander Wielen , Stephen J. McCullough , Jeffrey C. McDowell , Guy H. Super , Gary L. Worry
- 申请人: Steven L. Edwards , Greg A. Wendt , Robert J. Marinack , Michael J. Vander Wielen , Stephen J. McCullough , Jeffrey C. McDowell , Guy H. Super , Gary L. Worry
- 主分类号: D21F518
- IPC分类号: D21F518
摘要:
An improved process for making sheet from a fibrous furnish includes: depositing the furnish on a foraminous support; compactively dewatering the furnish to form a nascent web; drying the web on a heated cylinder; creping the web therefrom and throughdrying the web to a finished product. The microstructure of the web is controlled so as to facilitate throughdrying. The product exhibits a characteristic throughdrying coefficient of from 4 to 10 when the airflow through the sheet is characterized by a Reynolds Number of less than about 1. The novel products of the invention are characterized by wet springback ratio, hydraulic diameter and an internal bond strength parameter.
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