METHOD FOR PRODUCING SHEET CONTAINING FINE-FIBROUS CELLULOSE

• Main Authors: MIKAMI EIICHI, NOGUCHI YUICHI, TSUNODA MITSURU, FUSHIMI HAYAO
• Format: Patent
• Language: English; Japanese
• Published: 23.10.2014
• Subjects: IMPREGNATING OR COATING OF PAPER; METHODS OF PRODUCING PAPER THEREON; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PAPER-MAKING MACHINES; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G

PROBLEM TO BE SOLVED: To provide a method capable of achieving a good sheet peel-ability in a method for producing a sheet containing fine-fibrous cellulose using a wire for papermaking.SOLUTION: The method for producing a sheet containing fine-fibrous cellulose includes: a process for filtration of fine-fibrous cellulose having an average fiber width of 2-50 nm obtained by subjecting a lignocellulose raw material to a chemical treatment and a loosening treatment with a wire for papermaking composed of a substrate at least one surface of which is hydrophobized; and a process for peeling a sheet containing the fine-fibrous cellulose from the wire for papermaking after the filtration. 【課題】抄紙用ワイヤーを用いて微細繊維状セルロース含有シートを製造する方法において良好なシート剥離性を達成できる方法を提供すること。【解決手段】リグノセルロース原料を化学的処理及び解繊処理することにより得た平均繊維幅２〜５０ｎｍの微細繊維状セルロースを、少なくとも一方の面が疎水化されている基材からなる抄紙用ワイヤーで濾過する工程、及び濾過後に前記抄紙用ワイヤーから微細繊維状セルロース含有シートを剥離する工程を含む、微細繊維状セルロース含有シートの製造方法。【選択図】なし