SACS EZ

EZ-USE BAGS

Abrégé anglais

A continuous roll of plastic bags is formed from a flattened elongate tube of
suitable
material such as a thermoplastic. The roll may be separated along a first
straight perforated line
separator disposed between two seals which close the tube to form the bottom
of each bag.
The roll may also be separated along a second separator which comprises first
and second
perforated lines which are substantially sinusoidal or wavy and intersect at
least once.
Preferably, the first line is the inverse of the second line. The first and
second separators are
alternated along the roll.

Revendications

Claims:
1. A continuous roll comprising an elongate flattened tube of a thermoplastic
material,
separatabLe into a plurality of thermoplastic bags; said roll comprising a
first layer and a
second layer; said roll having a plurality of first separators each comprising
two seals where
the first and second layers are fused together along a line substantially
orthogonal to the
longitudinal axis of the tube and the two seals are separated by a perforated
line across both
first and second layers; said roll further having a plurality of second
separators comprising a
first perforated line across the first layer and a second perforated line
across the second
layer wherein the first and second perforated lines do not overlap; wherein
said first and
second separators are spaced apart and alternate along the length of the roll.
2. The roll of claim 1 wherein the first and second perforated lines are
substantially sinusoidal
lines that intersect at least once.
3. The roll of claim 2 wherein the first perforated line is the inverse of the
second perforated
tine.
4. A plurality of thermoplastic bags joined together into an elongate
continuous flattened tube
having a first layer and a second layer wherein:
(a) ~each bag has a closed end and a mouth;
(b) ~each closed end abuts the closed end of an adjacent bag;
(c) ~each mouth abuts the mouth of an adjacent bag;
(d) ~each pair of closed ends is separatable along a perforated line that is
orthogonal
to the longitudinal axis of the tube and positioned between the closed ends;
and
(e) ~each pair of mouths is separatable along a first perforated line in the
first layer
and a second perforated line in the second layer where the first perforated
line
does not overlap the second perforated line.
5. The plurality of thermoplastic bags of claim 4 wherein the first and second
perforated lines
separating the mouths of adjacent bags are substantially sinusoidal lines that
intersect at
least once.
6. The plurality of thermoplastic bags of claim 5 wherein the first perforated
line is the inverse
of the second perforated line.

Description

CA 02254320 1998-12-04
November 20 1998
EZ-USE BAGS
Rolls of packaging bags which are generally mounted on a dispenser permits the
user to
tear off a bag, one at time, along a straight perforated line.
By this method, the user is subjected to normal and frequent problems such as
the
following:
1 identifying which end of the bag is the opening
2 once the opening is finally located, the user experiences the added problem
of separating the two layers of this material at the opening
3 once the bag is opened, the user then needs to close the opening after
filling the bag with the desired items by using a fastener device such as a
twist tie, strap or similar gadget. These fasteners are obtained from a
separate container which are often empty or not readily available in the
areas where the bags are dispensed
This invention will permit the user to tear off a bag, identify the opening,
open and fill the
bag and close the opening more easily than the traditional method.
This invention relates to the method of dispensing packaging bags by
permitting the user
to tear off a bag, one at a time, from the dispenser. The unevenness of the
opening will
permit the user to easily identify the opening. The wave design of the opening
produces
two single-layer protruding edges. This allows for easy separation by pulling
the
protruding single-layer edges of the opening. In addition, the design of the
opening of the
bag with its two protruding edges, permits the user to tie the bag closed
without resorting
to the use of additional fastening devices.
It is the current practice for these bags to be dispensed in a roll with a
straight line
perforation and one parallell seam establishing the outside boundaries of each
bag. The
user has to pull the bag off, one at a time, identify the opening and separate
the two layers
of the material at the opening which are generally stuck together and, when
the bag is
filled, to search for a fastener to secure the opening.
I have found these disadvantages can be easily overcome by separating the bags
with a
wave-shaped perforation for the two connected and consecutive openings. The
corresponding bottoms of the bags are separated by two parallell straight
seams or heat
seals with a perforated straight line equidistant between these two seams.
The wave-shaped design of the opening permits the user to identify the opening
of the bag
once torn off the roll while the protruding edges of the opening allows the
bag to be
opened easily. The protruding edges can be used to tie the opening once the
bag is filled,


CA 02254320 1998-12-04
thus eliminating the need to provide other closing devices and the dispenser
to contain
these closing devices.
SEE ENCLOSED 4 DIAGRAMS
This design encompasses variations in sizes of the bag, types of pliable soft
material, color
of the material, shapes of the bag. etc.
In addition. the uneven opening of the bag can have a variation of different
shapes
providing the protruding edges are uneven enough to allow for the separation
of the
opening of the bag easily. Consequently, the shape of the protrusions may
differ without
compromising its design purpose. Tearing off a bag from a roll suspended on a
dispenser
adds to the efficiency but is not entirely necessary.

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