Invention Grant
- Patent Title: Process to manufacture low weight high quality paper for use as a support layer of a release liner with a belt assembly
-
Application No.: US15510843Application Date: 2014-09-15
-
Publication No.: US10280562B2Publication Date: 2019-05-07
- Inventor: Jukka Kotilainen , Jussi Leinonen , Janne Antila , Jari Tamminen
- Applicant: UPM Specialty Papers Oy
- Applicant Address: FI Helsinki
- Assignee: UPM SPECIALTY PAPERS OY
- Current Assignee: UPM SPECIALTY PAPERS OY
- Current Assignee Address: FI Helsinki
- Agency: Cantor Colburn LLP
- International Application: PCT/FI2014/050702 WO 20140915
- International Announcement: WO2016/042198 WO 20160324
- Main IPC: D21F2/00
- IPC: D21F2/00 ; D21F3/04 ; D21F5/00 ; D21G1/00 ; D21F11/00 ; D21H19/10 ; D21H25/04 ; D21H27/00

Abstract:
The invention relates to manufacturing low weight high quality paper suitable for use as a support layer of a release liner. A paper web is formed from pulp slurry, the moisture content of the paper web is reduced by a press section (PSEC), the paper web is supported by a belt (BELT1) from a first contact point (CP1) in the press section (PSEC) to a first separation point (SP1) in a drying section (DSEC), and the paper web is dried to form paper. The temperature profile of the paper web may be non-decreasing. When supported, the temperature of the paper web of the paper web may be higher than or equal to 56° C. to obtain a paper web having a dry content of at least 40 wt.-% at the first separation point.
Public/Granted literature
Information query