Invention Application
- Patent Title: FLEXIBLE MICROFIBRILLATED FILM FORMATION
- Patent Title (中): 柔性微胶囊形成
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Application No.: PCT/IB2016/055522Application Date: 2016-09-16
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Publication No.: WO2017046749A1Publication Date: 2017-03-23
- Inventor: HEISKANEN, Isto , BACKFOLK, Kaj , LYYTIKÄINEN, Katja
- Applicant: STORA ENSO OYJ
- Applicant Address: P.O. Box 309 00101 Helsinki FI
- Assignee: STORA ENSO OYJ
- Current Assignee: STORA ENSO OYJ
- Current Assignee Address: P.O. Box 309 00101 Helsinki FI
- Agency: STORA ENSO OYJ
- Priority: SE1551196-7 20150917
- Main IPC: D21H27/30
- IPC: D21H27/30 ; B32B29/00 ; D21H11/18
Abstract:
A method of manufacturing a film comprising microfibrillated cellulose,, wherein the method comprises the steps of: providing a first suspension comprising microfibrillated cellulose, having a dry content of from 0.2 to 2.0 %, wherein the first suspension has a first Schopper-Riegler (SR) value; forming a first web of said suspension; at least partly dewatering said first web; applying a second suspension comprising microfibrillated cellulose, and/or fines and/or fibers onto a surface of said formed and at least partially dried first web, wherein the second suspension has a second Schopper- Riegler value which is higher than said first Schopper-Riegler value, thereby forming a film.
Information query