Multilayer film comprising highly refined cellulose fibers

A method for manufacturing a multilayer film comprising highly refined cellulose fibers, the method comprising the steps of:

• a) forming a first wet web by applying a first pulp suspension comprising highly refined cellulose fibers having a Schopper-Riegler (SR) value of 65 or higher, as determined by standard ISO 5267-1, on a first wire;
• b) partially dewatering the first wet web to obtain a first partially dewatered web;
• c) forming a second wet web by applying a second pulp suspension comprising highly refined cellulose fibers having a Schopper-Riegler (SR) value of 65 or higher, as determined by standard ISO 5267-1, on a second wire;
• d) partially dewatering the second wet web to obtain a second partially dewatered web;
• e) applying a binder between the first partially dewatered web and the second partially dewatered web by spray coating, curtain coating, or foam coating and joining the first partially dewatered web and the second partially dewatered web to obtain a multilayer web;
• and
• f) further dewatering the multilayer web to obtain a multilayer film comprising highly refined cellulose fibers,
• wherein a dry solids content of the first pulp suspension, the second pulp suspension, or both is in a range of 0.1-0.7 wt %.