A method for dewatering a web comprising microfibrillated cellulose and a film produced from the dewatered web

The present invention relates to a method for dewatering a web comprising microfibrillated cellulose， wherein the method comprises the steps of: providing a suspension comprising between 50 weight-% to 100 weight-% of microfibrillated cellulose based on total dry weight， forming a fibrous web of said suspension on a support wherein said web has a dry content of 1-25% by weight， applying a dewatering felt into direct contact with the fibrous web， conducting said fibrous web， arranged between said dewatering felt and said substrate， through a pressing equipment. The invention further relates to a film produced from said method.

本发明涉及一种含微纤化纤维素（microfibrillated cellulose）的纤维网脱水方法，该方法包含如下步骤：制备一悬浮液，以总干重计，该悬浮液中的微纤化纤维素含量为50质量%至100质量%；在支撑体上由所述悬浮液成型得到纤维网，所述纤维网的干度为1质量%至25质量%；将脱水毛毯（dewatering felt）与所述纤维网直接贴合接触；将夹设于所述脱水毛毯与所述支撑体之间的所述纤维网输送通过压榨设备。本发明还涉及通过上述方法制备得到的薄膜。