Title:
GRANULAR POWDER PACKAGING MATERIAL EXCELLENT IN HEAT SEALABILITY
Document Type and Number:
Japanese Patent JP2002326300
Kind Code:
A
Abstract:
To provide a packaging material having air permeability, not leaking a granular powder and having efficient heat salability.
The packaging material is obtained by integrating a melt-blown nonwoven fabric (A-layer) comprising a thermoplastic synthetic resin with a flow starting temperature of 125°C or lower and a nonwoven fabric (C-layer) comprising a synthetic resin with a melting point of 200°C or higher by an adhesive. The air permeability of the packaging material is not more than 55 cm3/cm2/sec.
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Inventors:
TSUKAGOSHI TAKESHI
Application Number:
JP2001170242A
Publication Date:
November 12, 2002
Filing Date:
May 01, 2001
Export Citation:
Assignee:
K S T KK
International Classes:
B65D65/40; B32B5/26; B32B27/32; D04H1/4291; D04H1/593; D04H3/011; D04H3/16; (IPC1-7): B32B5/26; B32B27/32; B65D65/40; D04H1/42; D04H1/58; D04H3/00; D04H3/16
Attorney, Agent or Firm:
Ueda Shigeki