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1. (WO2015042874) PROCESS AND APPARATUS FOR FORMING ROLLED OR FOLDED BRIM ON MOLDED FIBER PULP ARTICLE

Pub. No.:    WO/2015/042874    International Application No.:    PCT/CN2013/084462
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Sat Sep 28 01:59:59 CEST 2013
IPC: B31F 5/02
B65D 3/00
D21J 3/00
B29C 53/34
Applicants: SABERT ASIA HOLDINGS LIMITED
Inventors: WONG, Kam Yiu
Title: PROCESS AND APPARATUS FOR FORMING ROLLED OR FOLDED BRIM ON MOLDED FIBER PULP ARTICLE
Abstract:
The present invention relates to a process and apparatus for forming a rolled or folded brim on a molded fiber pulp article and articles formed by such processes and apparatuses. The process includes steps of pre-treating the molded fiber pulp article with chemical solvent to temporarily reduce rigidity of a brim portion of the molded fiber pulp article, and rolling or folding a brim on the molded fiber pulp article. The apparatus for forming a rolled or folded brim on a molded fiber pulp article includes a moving mechanism having a pretreating station for pre-treating the molded fiber pulp article with chemical solvent to temporarily reduce rigidity of a brim portion of the molded fiber pulp article and a forming mechanism for rolling or folding a brim on the molded fiber pulp article. The process and apparatus can improve the strength, and rigidity of the molded fiber pulp article and reduce the weight thereof compared to such articles with flat rims.