The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 2022
Filed:
Oct. 02, 2020
Valmet Technologies Oy, Espoo, FI;
Rauno Enqvist, Espoo, FI;
VALMET TECHNOLOGIES OY, Espoo, FI;
Abstract
A dryer fabric has a weft of cross machine direction yarns () and a first warp of first machine direction yarns () and a second warp of second machine direction yarns (). The yarns of the first warp are arranged above the yarns of the second warp on a first surface (FS) side. The first warp has primary yarns () of PPS or PK yarns whose breaking load remains substantially stable within 15 days in conditions where RH=100%, T=125° C. and p=2.3 bar; and secondary yarns () of PET with breaking loads which substantially decrease under the same conditions. At least every second yarn of the first warp is a secondary yarn (). The secondary yarns () may be two out of three or three out of four of the first machine direction yarns (). PET reduces cost and adds elasticity to the dryer fabric.