Title:
良好なバリア特性を有するフィルムを製造するための方法
Document Type and Number:
Japanese Patent JP6886457
Kind Code:
B2
Abstract:
The present invention relates to a method for manufacturing a film having an oxygen transmission rate in the range of from 1 cc/m2/24 h to 500 cc/m2/24 h according to ASTM D-3985, at a relative humidity of more than 50% at 25° C., or higher than 75% at 25° C., or higher than 85% at 25° C., wherein the method comprises the steps of: providing a first suspension comprising a microfibrillated cellulose, wherein the dry content of the suspension is in the range of from 0.1 to 10% by weight, adding a wet strength additive to said first suspension, at an amount of from 0.1 to 10 weight-% based on the amount of microfibrillated cellulose (dry/dry), thereby forming a mixture of the microfibrillated cellulose and the wet strength additive, applying said mixture to a substrate to form a fibrous web and drying said web to form said film. The present invention also relates to a film produced according to the method.
Inventors:
Heiskanen, Isto
Back folk, chi
Saukkonen, food
Ruohoniemi, Nina
Reetikainen, Kacha
Back folk, chi
Saukkonen, food
Ruohoniemi, Nina
Reetikainen, Kacha
Application Number:
JP2018512939A
Publication Date:
June 16, 2021
Filing Date:
September 16, 2016
Export Citation:
Assignee:
Stra Enso Oijay
International Classes:
D21H11/18; D21H17/54; D21H19/34; D21H21/14
Domestic Patent References:
| JP2010168572A | ||||
| JP2012000550A | ||||
| JP2011001706A1 | ||||
| JP2013042654A1 | ||||
| JP2010167411A |
Attorney, Agent or Firm:
Asamura patent office