Method for dewatering a web comprising microfibrillated celluose and a film produced from the dewatered web

A method for dewatering a web comprising microfibrillated cellulose, wherein the method comprises the steps of:

• providing a suspension comprising between 50 wt-% to 100 wt-% of microfibrillated cellulose based on a total dry weight,
• forming a fibrous web of said suspension on a support wherein said fibrous web has a dry content of 1-25% by weight, wherein the fibrous web comprises more than one layer of microfibrillated cellulose,
• applying a dewatering felt into direct contact with the fibrous web,
• conducting said fibrous web, arranged between said dewatering felt and said support, through at least one shoe press equipment at a high speed of at least 150 m/min to dewater the fibrous web at the high speed to produce a dewatered web without deteriorating barrier properties, wherein a linear load in the at least one shoe press equipment is between 250-1500 kN/m and
• drying the dewatered web to form a film which film has an Oxygen Transmission Rate (OTR) value (23° C., 50% RH) below 100 cc/m2/24 h according to ASTM D-3985.