Title:
AIR PERMEABLE PACKAGING MATERIAL HAVING HEAT-SEALING PROPERTY AND PACKAGE
Document Type and Number:
Japanese Patent JP2004009509
Kind Code:
A
Abstract:
To provide an air permeable packaging material which can be easily fabricated and which has high mechanical strength and sealing strength.
The air permeable packaging material 1 includes a cross lamination nonwoven fabric 2 and a spun bonded nonwoven fabric 3 made of a polyolefin resin laminated on one side surface of the nonwoven fabric 2. The cross lamination nonwoven fabric 2 is constituted by laminating two unidirectionally oriented and arranged nonwoven fabrics 2a, 2b with which filaments are unidirectionally arranged and oriented so that arranging direction of the filament may intersect perpendicularly mutually.
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Inventors:
Kumehara, Yorio
Application Number:
JP2002000165747
Publication Date:
January 15, 2004
Filing Date:
June 06, 2002
Export Citation:
Assignee:
NIPPON PETROCHEMICALS CO LTD
International Classes:
B65D81/26; B32B5/26; B65D65/40; D04H3/00; D04H3/04; B65D81/26; B32B5/22; B65D65/40; D04H3/00; D04H3/02; (IPC1-7): B32B5/26; B65D65/40; B65D81/26; D04H3/00; D04H3/04