Title:
PRODUCTION OF LOW-DENSITY MOLDED PRODUCT AND LOW-DENSITY SHEET
Document Type and Number:
Japanese Patent JP3511742
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To produce a low-density molded product and a low-density sheet which are excellent in cushioning properties and are both useful as cushioning materials for packaging by using pulp fibers.
SOLUTION: Finely fibrillated pulp with a water retention value of 210-450% is used in an amount of 3-65wt.% and curled fibers with a water retention value of 25-65wt.% and a wet curl factor of 0.5-1.0 in an amount of 35-97wt.% based on the whole fiber weight are mixed to prepare an aqueous slurry. Then, the slurry is cast in a mold provided with a mesh, molded by draining and dried to give a molded product. Further, the water slurry of this mixture is made into a sheet with a wet type paper-making machine and the sheet is dried to give the objective sheet.
Inventors:
Suenaga, Hiroshi
Yoshimura, Yoshihiro
Kitao, Osamu
Yoshimura, Yoshihiro
Kitao, Osamu
Application Number:
JP19019795A
Publication Date:
March 29, 2004
Filing Date:
July 26, 1995
Export Citation:
Assignee:
OJI PAPER CO LTD
International Classes:
D21J3/12; D21H11/00; D21H11/02; D21H15/04; (IPC1-7): D21J3/12; D21H15/04