High-internal-bonding-strength heat-sealing tea filter paper of three-layer structure and preparation method and application of high-internal-bonding-strength heat-sealing tea filter paper

The invention belongs to the technical field of new materials of specialty paper, and particularly relates to high-internal-bonding-strength heat-sealing tea filter paper of a three-layer structure, a preparation method and application. A heat-sealing tea filter paper with a three-layer structure an...

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Bibliographische Detailangaben
Hauptverfasser:	ZHENG BO, LIU CHENGYUE, YAN LUMING, ZHOU ZHENYU, ZHENG RONG, ZUO LEIGANG, KONG YULING, GUO WAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL IMPREGNATING OR COATING OF PAPER METHODS OF PRODUCING PAPER THEREON PACKAGES PACKAGING ELEMENTS PACKING PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PAPER-MAKING MACHINES PERFORMING OPERATIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS STORING TEXTILES TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	The invention belongs to the technical field of new materials of specialty paper, and particularly relates to high-internal-bonding-strength heat-sealing tea filter paper of a three-layer structure, a preparation method and application. A heat-sealing tea filter paper with a three-layer structure and high internal bonding strength is composed of a base layer and a heat-sealing layer, the base layer is made of 100% first natural plant fiber, and the mass ratio of the base layer to the whole paper sheet is 20-40%; the heat-sealing layer is formed by two layers of heat-sealing layer papermaking, the first heat-sealing layer is located in the middle of the paper sheet, the second heat-sealing layer is located on the outer layer of the paper sheet, the mass ratio of the first heat-sealing layer to the whole paper sheet is 25-45%, and the mass ratio of the second heat-sealing layer to the whole paper sheet is 20-40%. The tea filter paper with the structure has better internal bonding strength after being soaked in