To provide a bag in which not only the peripheral edge of a bag port is strong but also the strength improvement can be freely adjusted, a failure of looking unnatural since an emboss pattern or a picture pattern executed on the outer surface of the bag is seen through at a fold-over part does not occur, and it is not needed to separately use a reinforcing member for increasing the strength of the peripheral edge of the bag port further.
The bag composed of nonwoven fabric is provided with a thick belt-like reinforcing part 4 on the peripheral edge of the bag port. The reinforcing part is composed of a single continuous structure without a boundary made of the same fiber material as the fiber material of a bag body 5, is thicker than the bag body to be about four times of the thickness of the bag body.
MIWA SHINICHIRO
| JPH0719020A | 1995-01-20 | |||
| JPH11198739A | 1999-07-27 | |||
| JPS6484851A | 1989-03-30 | |||
| JP2001190317A | 2001-07-17 | |||
| JP2005204965A | 2005-08-04 | |||
| JPH11107153A | 1999-04-20 |
Miyazaki Yoshio
Mitsuo Tateishi
Toshio Nakamura
Tsutomu Kato
Kaoru Onozuka
High Masahiro
Yusuke Murakoshi