Title:
EQUIPMENT FOR PRODUCING POLYVINYL ALCOHOL FILM USING DRUM
Document Type and Number:
WIPO Patent Application WO/2009/127121
Kind Code:
A1
Abstract:
An equipment for producing polyvinyl alcohol film using drum includes a film forming machine comprising an inner cylinder (23) fixedly mounted on a frame and having a hollow front shaft and a hollow back shaft, an outer cylinder (22) rotating oppositely to the inner cylinder (23) and an inner heating device. A water jacket (30) is laid between the inner cylinder (23) and the outer cylinder (22). An outer evaporation device is provided outside of the outer cylinder (22) and utilized to evaporate moisture in the polyvinyl alcohol film attached to the surface of the outer cylinder (22).
Inventors:
LI, Qingrang (No. 810-1608, Fuli East RoadXigu District, Lanzhou, Gansu 0, 730060, CN)
Application Number:
CN2009/000394
Publication Date:
October 22, 2009
Filing Date:
April 14, 2009
Export Citation:
Assignee:
LI, Qingrang (No. 810-1608, Fuli East RoadXigu District, Lanzhou, Gansu 0, 730060, CN)
International Classes:
B29C41/26; B29C35/04; B29C41/46; B29K29/00; B29L7/00; B29C41/00; B29C35/04; B29C41/34
Attorney, Agent or Firm:
LUNG TIN INTERNATIONAL INTELLECTUAL PROPERTY AGENT LTD. (18th Floor Tower B, Grand Place No.5 Huizhong Road, Chaoyang District, Beijing 1, 100101, CN)