High-intensity medical composite base paper and production method thereof

• Main Authors: CAI ZHAOBIN, LI CHANGRONG, CHEN GUOPING, CHEN YUANXING, GU KEQIANG, DAI LUOGEN, TAN NINGHUA
• Format: Patent
• Language: Chinese; English
• Published: 25.05.2016
• Subjects: IMPREGNATING OR COATING OF PAPER; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; 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

The invention belongs to the technical field of paper making, and relates to high-intensity medical composite base paper and a production method thereof. High-intensity composite packaging paper comprises paper pulp and substrate paper, wherein the paper pulp is prepared from hardwood pulp and softwood pulp, and the substrate paper is prepared by mixing the paper pulp and a chemical additive; ; the chemical additive is prepared from sodium carboxymethylcellulose; the used hardwood pulp and softwood pulp are pretreated by the sodium carboxymethylcellulose; through being metered by weight, the ratio of the hardwood pulp to the softwood pulp in the substrate paper is (70 to 50):(30 to 50), and the ratio of the chemical additive to the paper pulp is (0.8 to 5):100. A product of the high-intensity medical composite base paper has ultra-high fiber inside bonding intensity and ultra-high surface anti-tearing intensity, so that the base paper can meet the intensity and tearing performance requirements of the medical