Title:
CUSHIONING MATERIAL FOR HELMET
Document Type and Number:
Japanese Patent JPH11124790
Kind Code:
A
Abstract:
To obtain a biodegradable cushioning material comprising a natural pulp fiber most preferable for the environmentals, excellent in weight (low density), air permeability, moisture permeability and cushioning characteristics.
This cushioning material for a helmet comprises a low-density material having 0.05-0.40 g/cm3 obtained by deliquoring and drying an aqueous slurry containing a curled fiber having 0.4-1.0 wet curl factor as a main raw material. In the operation, preferably the aqueous slurry contains a microfilament having ≥0.15 bond strengthening factor and the cushioning material is subjected to waterproofing treatment and/or water-repellent treatment.
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Inventors:
YOSHIMURA CHITOSE
SUENAGA HIROSHI
ISHIKAWA HISAO
SUENAGA HIROSHI
ISHIKAWA HISAO
Application Number:
JP28390697A
Publication Date:
May 11, 1999
Filing Date:
October 16, 1997
Export Citation:
Assignee:
OJI PAPER CO
International Classes:
A42B3/06; D21H11/00; D21H15/02; D21H15/04; D21J3/00; (IPC1-7): D21H15/04; A42B3/06; D21H15/02; D21J3/00
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