| (19) |
 |
|
(11) |
EP 1 270 429 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
15.06.2005 Bulletin 2005/24 |
| (43) |
Date of publication A2: |
|
02.01.2003 Bulletin 2003/01 |
| (22) |
Date of filing: 10.08.2001 |
|
| (51) |
International Patent Classification (IPC)7: B65D 33/00 |
|
| (84) |
Designated Contracting States: |
|
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
Designated Extension States: |
|
AL LT LV MK RO SI |
| (30) |
Priority: |
12.06.2001 CN 01114789
|
| (71) |
Applicant: Chum, Tung Hang |
|
Fo Tan, Shatin New Territories, Hong Kong (CN) |
|
| (72) |
Inventor: |
|
- Chum, Tung Hang
Fo Tan, Shatin New Territories, Hong Kong (CN)
|
| (74) |
Representative: Godwin, Edgar James |
|
Marks & Clerk 90 Long Acre
London WC2E 9RA
London WC2E 9RA (GB) |
|
| |
|
| (54) |
Easy-Open film bag, dispensing arrangement and method of manufacture for same |
(57) A manufacturing method for plastic bags recombines a layer of plastic (1) to the
outside surface of the bag (2) to provide a portion of the outside surface with a
lower melting point than the inside surface of the bag. The bags are arranged in stacks
and heat is applied to bond the low melting point layer. A relatively weak bond is
formed between adjacent outside bag surfaces while the bag inside surfaces remain
free of each other. The weak bond is positioned along the median of the bag and near
the bag opening. A second bag is drawn open by the bond during retrieval of a first
bag. A flexible separation tab (14) is arranged to maintain the separation between
the inside surfaces of the open bag. The separation tab may also be made conspicuous
to present an obvious retrieval point for the top bag in a hanging bag dispensing
arrangement.