Use of a transfer belt for a soft tissue paper machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 1, 2004
Issued Date -
N/A
app pub date -
Sep 18, 2000
filing date -
Mar 20, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Use of an essentially impermeable transfer belt (16) for a soft tissue paper machine for conducting a soft tissue web (1) through a shoe press nip in the press section of the paper machine, and from the shoe press nip to a Yankee cylinder (5) in the dryer section of the paper machine in a closed draw. The Yankee cylinder forms, together with a transfer means (17), a transfer nip for transferring the soft tissue web from the transfer belt to the Yankee cylinder. The transfer belt comprises a carrier and an elastically compressible polymer layer on its side facing the web, the polymer layer having a hardness between 50 and 97 Shore A and having a web-contacting surface which has a pressure-sensitive, resettable degree of roughness, the web-contacting surface having a degree of roughness in a non-compressed state of R.sub.z =2-80 .mu.m, measured according to ISO 4287, Part I, and a lower degree of roughness of R.sub.z =0-20 .mu.m when the polymer layer is compressed by a linear load of 20-220 kN/m applied to the essentially impermeable transfer belt as measured in a non-extended press nip.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully