The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 2011
Filed:
Mar. 24, 2006
Jianfu Liu, Changsha, CN;
Xinliang Tan, Changsha, CN;
Jianshan Fu, Changsha, CN;
Dafeng Yin, Changsha, CN;
Changjian Deng, Changsha, CN;
Gang Chen, Changsha, CN;
Jianfu Liu, Changsha, CN;
Xinliang Tan, Changsha, CN;
Jianshan Fu, Changsha, CN;
Dafeng Yin, Changsha, CN;
Changjian Deng, Changsha, CN;
Gang Chen, Changsha, CN;
Abstract
This invention relates to a production process of tobacco sheet by papermaking. The technical arrangement of this invention are: (a). to immerge and to extract tobacco stem and leaf scrap respectively by water-soluble solvents to respectively obtain solid tobacco stem and solid leaf scrap, and tobacco stem extract and leaf scrap extract via solid/liquid separation; (b). to defibrilate solid tobacco stem and solid leaf scrap respectively, to mix the obtained tobacco stem fiber and leaf scrap fiber and combined with dust to prepare fiber base; (c). to wholly or partly abnegate the tobacco stem extract obtained by Step (a), and to evaporated and to concentrate other extracts that then are sprayed or immerged to coat the formed fiber base that is then dried, threshed and shaped. The tobacco sheet production process offered by this invention has improved the tobacco sheet's filling capacity and its sensory quality.