Note: Descriptions are shown in the official language in which they were submitted.
1
POtJCf~ PERFUME SAMPLERS AND PROCESS FOR THEIR MANUFACTURE
BACKGROUND OF THE INVENTION
The field of this invention is distribution systems for
sampling perfume, particularly sample pouches designed to
Carry small amounts of perfume for advertising purposes, for
example as inserts in fashion magazines or as
point-of-purchase samplers.
compositions and devices designed to distribute a
"sample" amount of a fragrance to potential customers are
known. These known devices generally hold a perfume sample
in a magazine where they either emit the fragrance
continuously or contain the perfume in a fragile package.
However, each of the known devices has some disadvantage
which may include high cost, inadequate rate of and/or
premature release of fragrance, difficulty in forming and
maintaining a desired shape, or difficulty in preserving the
quality of the fragrance in the sampling device.
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2
one established device for sampling perfume delivered
in magazines is known in true trade as the "Scent Strip".
The process for making these devices involves
micr.oencapsulation of the fragrance in a manner similar to
the microencapsulation of inks in carbonless forms. One
drawback of these microcapsules is that they are fragile and
tend to burst during shipping and handling of the magazines,
resulting in unintentional release of fragrance.
Processing conditions for making devices which
encapsulate perfume, such as heat, pressure, and Chemical
agents may make it difficult to maintain the integrity of
the desired fragrance within the device. These
disadvantages have led to a continuing search for
improvements in fragrance-sample containers or devices.
when used in conjunction with a mailed article such as
a magazine, a perfume pouch must remain firmly secured
during transport. Firm adherence ensures that the pouch will
actually reach the user. Further, it must remain sealed
until opened by the user, to protect the user from unwanted
release of fragrance. Of course, a good seal protects the
perfume from leakage or contamination that could degrade the
fragrance and quality of the pouch itself.
CA 02073922 1998-09-14
3
One possible method of securing a perfume emitting
article to the page of a mailer is by an adhesive layer on
the bottom side of the article. However, many known
fragrances or perfumes used in conjunction with perfume
emitting devices, especially oil based fragrances, can
migrate to and/or through the adhesive layer that attaches
the article to its position on a surface. The fragrance oil
can mix with the adhesive considerably reducing the internal
strength of the adhesive as well as degrading the fragrance
in the containing device. Fragrance oils can also "bleed
through" to the mailer page.
A recent development in the technology of fragrance
sampling is the perfume patch disclosed in U.S. Patent No.
4,880,690, assigned to the assignee of the present
invention.
The perfume patch of that patent
includes a barrier layer to prevent migration of the
fragrances to an adhesive layer that attaches the patch to
its position on a surface, such as the skin of a wearer or a
page of a magazine, thereby preserving the internal strength
of the adhesive and preventing unintentional release of
fragrance.
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4
However, neither that patent nor any other prior art
known teaches an inexpensive, tightly-sealed fragrance sampler
which can be manufactured readily, shipped, and handled without
premature release of fragrance, then peeled for a sampling of
the fragrance. The prior art also does not teach a mailable
perfume pouch sampler of that type which also has artwork on
its top surface, and which can be readily and precisely applied
to a magazine page so as to become a part of the larger artwork
on the magazine page.
SUMMARY OF THE INVENTION
The invention provides a pouch label for use in the
sampling of fragrances comprising: (a) a bottom barrier member
for providing bottom containment for fragrance, said member
having an adhesive coating on its lower surface; (b) a top
barrier member hermetically and releasably joined to said
bottom barrier member to form a fragrance impermeable enclosure;
(c) means for releasing fragrance contained within the
enclosure; and (d) means for separating said top barrier member
from said bottom barrier member to enable the fragrance to be
sampled.
The invention also provides a pouch for use in the
sampling of fragrances comprising: (a) a bottom barrier member
for providing bottom containment for fragrance; (b) a top
barrier member hermetically and releasably joined to said bottom
barrier member to form a fragrance impermeable enclosure; (c)
means for releasing fragrance attached to said top and bottom
barrier members; and (d) means for separating said top barrier
member from said bottom barrier member to enable the fragrance
to be sampled.
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CA 02073922 1998-09-14
The invention further provides a method of manufactur-
ing a fragrance pouch label comprising: (a) continuously
applying a bottom barrier member onto a support web having an
adhesive coating that is releasable to the bottom barrier
member, said bottom barrier member being heat sealable to
another barrier member and being impervious to oil and fragrance;
(b) applying fragrance to selected zones of the upper surface of
the bottom barrier member; (c) continuously depositing a top
barrier member over the structure resulting from step (b), said
top barrier member being heat sealable to the bottom barrier
member and being impervious to oil and fragrance; (d) releasably
sealing the top barrier member to the bottom barrier member to
form continuous hermetic seals enclosing each of said zones to
which fragrance has been applied; (e) cutting through selected
portions of the top barrier member and the bottom barrier member
to the support web; (f) stripping away said cut portions of the
top and bottom barrier members surrounding said zones to leave
separate fragrance-containing pouch labels held on said support
web; and (g) collecting said support web containing fragrance
pouch labels onto a holder from which individual fragrance pouch
labels may later be removed and adheringly applied to surfaces.
The invention still further provides a method of
distributing fragrance samples so that the fragrance can be
easily sampled comprising: providing fragrance pouch labels,
each including a top barrier member which prevents leakage of
fragrance and has artwork on its top surface, a bottom barrier
member which prevents leakage of fragrance, the two barrier
members being hermetically and releasably sealed to contain the
60412-2352
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6
fragrance between inner surfaces thereof, and an adhesive layer
on the exposed side of the bottom barrier member, the adhesive
allowing for the attachment of the pouch label to a surface;
and delivering the pouch labels so provided to samplers so that
the top barrier member can be removed from the pouch label to
allow release of fragrance vapors.
The perfume pouch label should remain firmly attached
to a mailer or other surface during transport and handling so
that a potential purchaser of the perfume can open the pouch
label and sample the perfume.
Also disclosed is a well-sealed perfume pouch label
whose perfume-containing member can be removed from a magazine
and sampled.
There is also described an efficient and economical
method of manufacturing a well-sealed perfume pouch label with
artwork on its top surface and which can be readily applied to
a surface such as a magazine page, and an inexpensive means to
entice potential perfume customers to sample perfume.
The perfume containing pouch label offers an
advertiser more creativity in allowing the pouch label to be
printed and die cut to match or become part of the advertising
art.
The invention provides an inexpensive yet effective
means for disseminating sample quantities of perfume through
the mail and/or as a magazine insert in a structure which can
be opened to release the fragrance.
The pouch label (or pouch if no pressure-sensitive
adhesive back is included) contains perfume which may be stored
60412-2352
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6a
in a perfume-doped layer carried between two barrier members
which prevent unwanted release or migration of fragrance or its
oils. The top barrier member is peelably removable for sampling
of the perfume
60412-2352
~~'"~ ~'9 A~:
stored within the pouch. Artwork rnay be provided on a
surface of the top barrier member to match or become part of
a larger artwork on a magazine page to which the pouch label
is attached.
A preferred method of manufacturing the perfume pouch
label in accordance with the present invention is a nine
zone process. In zone one, a bottom barrier member is
continuously laid down onto a continuous web having a
releasable adhesive coating. In zone two, perfume is
applied to the surface of the lower barrier member, as by
zone-coating selected areas with a perfume doped oligomer
similar to that taught in U.S. Patent 4,860,690, and then in
zone three, the oligomer patches are cured with ultraviolet
radiation into patches of perfume-releasing polymer. In
zone four, a second layer or top barrier member is deposited
on the surface of the web/adhesive/bottom
barrier/perfume-doped polymer structure. In zone five, the
top and bottom barrier members are heat sealed forming a
continuous hermetic sealed area enclosing each perfume doped
polymer patch and preferably leaving an unsealed corner of
each patch to produce a tab for peeling. In zone six,
artwork is printed on the top barrier member. In zone
seven, the structure is die cut at areas all around the
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multiple hermetically-sealed perfume-doped polymer patches.
The depth of_ the cut is up to but not penetrating the
support web so as to produce separate sealed perfume pouch
labels, with unsealed tabs, affixed to the uncut support
web. In zone eight, the waste material outside the
perimeters of the perfume pouch labels is stripped away
leaving separate pouch labels secured to the support web and
having individual "peel-away" tabs. In zone nine, the
support web is slit to form strips of desired widths arid the
strips are wound onto rolls containing perfume pouches for
subsequent machine attachment to surfaces such as pages of
magazines.
9
F3RIEF DESCRIPTION OF THE DRAWING
FIG. 1 i.s a schematic diagram that illustrates the method
for manufacturing a finished roll of magazine attachable
perfume pouch labels in accordance with a preferred
embodiment of the present invention.
FIG. 2 is a top plan view of perfume pouch labels made in
accordance with the process shown in FIG. 1 before the
support web is slit into strips for roll formation and
without showing any artwork on its top surface.
FIG. 3 is a cross-sectional view taken along line 3-3 of
FIG. 2 of a perfume pouch label affixed to the support web.
FIG. 4 is a schematic diagram of a portion of the process of
forming perfume pouch labels and showing a cross-sectional
view of an intermediate product formed when the bottom
barrier member is deposited onto the adhesive-coated support
web.
FIG. 5 is a a top plan view of the intermediate product
following application of perfume or perfume containing
article to the bottom barrier member.
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FIG. 6 is a cross-sectional view 'taken along line 6-6 of
FIG. 5 of the support web/barrier/perfume structure.
FIG. ~ is a cross-sectional view of the intermediate product
following application of the top barrier member to the top
of the structure.
FIG. 8 is a schematic diagram of a preferred process of
sealing the perfume pouch and a cross-sectional view of the
intermediate product being heat sealed.
FIG. 9 is a view in perspective of a rotary heat sealing die
for sealing the top and bottom barrier members to each other
to form a hermetically sealed perfume pouch label.
FIG. 10 is a cross-sectional view of the product after being
die cut thereby making separate perfume pouch labels affixed
to the uncut support.
m
FIG. la is a cross-sectional view of the product carried by
the support web after the matrix outside the
perfume-containing areas of the pouch labels has been
stripped away leaving separated perfume pouch labels and is
similar to a cross section taken along line 11-11 of FIG. 2.
FzG. 12 is a schematic diagram of a perfume pouch label with
artwork attached to a magazine for customer viewing and
sampling.
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12
DESCRIP'PION OF PREFERRED EMBODIMENTS
At the outset, the invention is described in its
broadest overall aspects with a more detailed description
following. The invention is a tightly-sealed arid economical
fragrance emitting perfume pouch label or pouch, formed with
two barrier members or layers sealed together and optionally
readily attachable tc most surfaces by an adhesive located
directly below the bottom barrier member. Positioned
between the barrier members is perfume, preferably in the
form of zones or patches of cured perfume-containing
oligomer coated onto the top surface of the bottom barrier
member. Each barrier member is constructed of materials that
are impermeable to outflowing perfume vapors and liquids as
well as inflowing oxygen, and yet capable of being sealed
together. At least one of the barrier members is peelable
and removable from the other barrier layer so as to release
the perfume fragrance stored in the pouch.
The top barrier member also may include paper in its
upper structure so that artwork can be applied to the paper
surface. With creative artistry, the artwork can suggest to
the user to detach the pouch label from the mailer and apply
the perfume to the skin. Moreover, the bottom barrier
13
member, cured oligome.r patches, and adhesive may be
transparent and the artwork on the top barrier member may be
identical to that on the portion of the page to which the
pouch label is attached so that removal of the top barrier
member releases the fragrance without disruption or
alteration of the artwork seen by the reader.
A preferred use of the perfume pouch label of the
present invention is the economical, efficient, and visually
stimulating distribution of fragrance samples to the public
through placement in various magazines and other consumer
articles. The pouch label may be permanently affixed to the
consumer article or may be removably attached so that
consumers can remove the pouch label or perfume-containing
portion of the pouch label from the article and apply the
perfume directly to the skin.
A preferred process of manufacturing perfume pouch
labels aCCOrding to the present invention produces a
fragrance containing material in individual adhesive,
coated, peelable pouch labels in a form suitable for use
with high-speed label applicator and insertion equipment.
With reference to FIGS. 2,3, and 11, the pouch label 66 sits
on a support web 20 which may be wound onto a roll similar
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14
r_o a roll of pressure sensitive labels to facilitate this
process of application to surfaces such as pages to be bound
into a magazine.
A method for manufacturing the perfume pouch label in
accordance with a preferred embodiment of the present
invention is a nine zone manufacturing method. The first
three zones can be somewhat similar to those disclosed in
U.S. Patent No. 4,880,690.
With reference to FIG. 1, which illustrates a preferred
manufacturing method, in zone 1 an adhesive coated support
web 20 and a barrier member 24 are unwound from rolls 28 and
30 respectively, and are pressed together by passing through
hip rolls 34. The support web is preferably made of
silicone-coated 30-40# (weight) release paper 20 or
silicone-coated Mylar sheet with an adhesive coating 40 on
its upper surface and a release coating 36 between the web
20 and the adhesive coating 40 (see FIGS. 3 and 4). The
silicone coating 36 (see rIG. 3) on the support web or paper
20 acts as a release liner, allowing clean removal of the
adhesive from the support web, thereby resulting in the
maintenance of the integrity of the adhesive on the barrier
member 24 when the paper 20 is removed during operation of
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automated label application machinery to apply perfume pouch
labels to specific areas of magazine pages or to other
surfaces. The barrier member 24 is a thin layer or laminate
of materials) suitable for preventing migration or seepage
of perfume to the adhesive, for preventing oxygen from
moving inside the pouch, and for hermetically sealing, as by
heat, to another member. Gne preferred harrier member 24 is
a laminate of polyethylene 24', nylon 24 " , and polyethylene
24 " '. The polyethylene 24', 24 " ' or like material and
nylon 24 " in the barrier layer, as used in the present
invention, eliminate potential seepage of the perfume to the
adhesive layer and the diffusion of oxygen to the inside of
the pouch label, which would degrade the integrity of the
adhesive and fragrance, respectively. Alternatively, the
barrier member 24 may consist of a laminate of "Saran"
polyvinylidene dichloride (PVDC) type material ("Saran" is a
registered trademark of Dow Chemical & Plastics Company),
nylon, and polyethylene or any paper and/or polymer laminate
having an element such as polyethylene on its top side for
heat sealing and having an element which acts as an
impervious barrier to fragrance oils and oxygen such as
metal foil or "Saran". In one important embodiment of the
invention, barrier member 24 is transparent, as is the
adhesive 40 transferred from the support web 20 so that the
16
surface to which perfume pouch label 66 is attached may be
seen through the barrier rnember 24. The barrier member 24
rnay in some applications consist of a single layer such as
Saran (PVDC) material.
Roll 30 feeds the barrier member 24, while roll 28
feeds the silicon coated 30-40# paper support web 20 with
the adhesive 40 on its top surface, through the nip rolls
34. (The support web 20 preferably already contains an
adhesive before unwound from the roll 28 in zone 1). FIG. 4
shows the support web/barrier member structure 38 after
passage through nip rolls 34, with adhesive 40 lodged
between the barrier member 24 and the silicone coating 36 on
the support web 20.
In zone 2 of the process shown in FIG. 1, the top
surface of the member 24 (hereafter referred to as the
bottom barrier member 24) is zone-coated, as to a thickness
of 0.001 - 0.005 inches, with perfume-doped oligomer using a
suitable applicator 42 such as a gravure coater, screen
coater, or glue applicator apparatus. The oligomer and the
method for its preparation and curing may be as disclosed in
U.S. Patent No. 4,880,690, and the perfume or fragrance may
be dispersed in the oligomer by stirring. It should be
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17
noted, however, that the invention is not limited to the use
of perfume doped oligomers; indeed, pure perfume can be
dropped onto the structure if there is no need to solidify
or cure the perfume-containing medium to solid or semi-solid
patches. Figs. 5 and 6 show a number of perfume-doped
oligomer patches 44 positioned on the bottom barrier member
24 after coating of the member 24 in zone 2.
In zone 3 of the process shown in FIG. 1, the perfume
doped oligomer patches 44 are U.V.- Cured into solid polymer
patches. This is done through exposure of the perfume doped
oligomer patches 44 to ultraviolet radiation, as from U.V.
lamp 45 positioned above the bottom barrier member 24 being
drawn through the perfume pouch-making apparatus of FIG. 1.
This contains the perfume in a solid polymer matrix to
prevent inadvertent physical transfer of perfume to other
surfaces after the pouch label is peeled during use. A
variation in zone 2 can be the application of drops of
perfume oil, or a perfume sponge, or an article with
microcapsules of perfume, or any flat article ("chip")
impregnated with or containing perfume, instead of the
perfume doped oligomer in which case no curing (zone 3) is
required.
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In zone 4 the process shown in FIG. 1, a top barrier
member 50 is added to the support web/polymer-coated bottom
barrier member structure 52. The top barrier member 50 is
fed from a roll 54 and is passed with the structure 52
through nip rolls 56 which press the member 50 and the
structure 52 together to form intermediate structure 60. A
preferred embodiment of the top barrier member 50 (FIG. 7)
is a laminate of paper 50', polyethylene 50 " , metal foil
50 " ' and polyethylene 50 " , coated with a low melt
temperature polymer 50 " " such as EVA (ethylene vinyl
acetate) or an ionomer with paper forming the top surface
so that printing may later be applied. FIG. 7 shows the
intermediate product 60 after passage through the rolls 56
of zone 4 wherein the top barrier member 50 lies above the
multiple cured polymer patches 44 positioned on the surface
of the bottom barrier member 24 which in turn is adhered to
the support web 20.
In zone 5 of the process shown in FIG. 1, the multiple
layered, perfume-doped polymer structure 60 of FIG. 7 is
heat-sealed. As shown in FIG. 8, the structure 60 may be
heat-sealed with a rotary heat sealing die 64 (FIG. 9),
which results in a continuous hermetic seal 65 (also see
FIG. 2 and FIG. 3) around each perfume-doped polymer patch
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19
44. Preferably the die 54 has spaced recesses 63 so as to
leave a corner of each perfume pouch label 66 unsealed to
facilitate later removal of its top barrier member 50. In
FIG. 2, the Sealed areas 65 (remaining after
matrix-stripping in zone 8) are shown shaded for
illustration purposes and the perfume-doped polymer patches
44 are drawn in phantom. The heat-sealing die 64 uses heat
and pressure to fuse the top and bottom barrier members 50
and 24 via the low melt temperature coating 50 " " ' applied
to member 50. At this stage, the hermetic seal 65 covers
the entire area of the web excluding the corners left
unsealed icy the die recesses 63.
In zone 6 of the process shown in FIG. 1, artwork is
printed on the paper surface 50' of the top barrier member
50 of the perfume pouch labels 66 by a printer 68. Any
suitable printing process, such as flexographic, rotary
letterpress, or rotogravure, may be utilized.
In zone 7 of the process shown in FIG. 1, the
multiple-layered, perfume-doped polymer sealed-pouch label
structure 70 from zone 6 is die cut by means of dies 74 to
allow removal of excess material 78 and to further separate
individual perfume pouch labels. The depth of the cuts 72
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are up to but not penetrating the support web 20 of the
structure 70. The cuts 72 are made in the spaces
surrounding the multiple hermetically sealed perfume doped
polymer patches and include a small unsealed area 81,
thereby creating a tab which may be used to release the
fragrance. Those skilled in the art know this technique as
"kiss Cutting". Since the support web 20 is not cut, the
entire structure is held together for processing in
subsequent zones.
zn zone 8 and in the portion of zone 7 downstream of
the dies 74 of the process shown in FIG. 1, the matrix 78,
around the perfume doped polymer pouch labels 66 is stripped
away As shown in FIG. 10 by the empty spaces, the matrix 78
consists of the portions of the top and bottom barrier
members 5o and 24 which surround the area of each perfume
pouch label 66 and the underlying adhesive layer 40. After
the matrix 78 is pulled away, (the matrix 78 may be wound on
roll 80 and then discarded), separate raised areas of
perfume pouch labels 66 remain as shown in FIGS. 3 and 11.
As indicated in FIG. 2, an unsealed corner 81 of each
perfume pouch label 66 is included in each pouch label to
facilitate later sampling of the perfume contained in the
pouch.
21 ~~,'~9 e~,'.~~ A
In zone 9 of the process shown in FIG. 1, the support
web 20 containing the manufactured perfume pouch labels 66
is slit as by a rotary knife 82 to form strips such as the
strips 83 and 84 containing one or more rows of pouch labels
66. Each strip (two being shown in FIG.1) is then wound
onto a roll such as the rolls 86 and 88, as shown in FIG. 1,
thereby completing the method of manufacture.
FIG 2 shows the finished product resulting from these
operations before the support web 20 is slit and the
resulting strips 83 and 84 are wound onto rolls 86 and 88.
The perfume pouch labels 66 sit upon the support web 20 like
pressure sensitive labels. This product configuration
readily permits high speed application from the rolls 86 and
88 to magazine pages during or before binding of the
magazine. Because of the release liner of the support web
20, the pouch labels 66 can be readily transferred from the
web 20 onto a properly positioned page by rapidly drawing
the web over a support roller which turns the web to move at
a substantial angle (e. g., ninety degrees) to its original
direction. Suction may also be employed to aid in transfer
of the labels.
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22
As shown i.n FzG. 12, the perfume pouch label 66 with
artwork 90 on its top barrier member, is firmly attached by
the adhesive 40 to an advertisement 92 of a magazine page.
A reader may sample the perfume in the perfume pouch label
by peeling the top barrier member 50 from the pouch,
allowing the perfume vapors or fragrance to emanate from the
perfume patch of the pouch label.
One alternative method of forming perfume pouch labels
according to this invention is to seal perfumes or fragrance
oils between barrier members without utilizing oligomer.
For this embodiment, no curing (zone 3) is required;
however, the perfume may be somewhat more likely to transfer
to other surfaces (e. g. adjoining page of magazine) during
subsequent use.
Another alternative embodiment is to eliminate the
silicone coated paper and adhesive so as to produce
individual pouches instead of pouch labels. These pouches
could be used as samplers, and would be suitable for direct
insertion into magazines by the later application of
adhesive; this is known in the trade as "tipping on". If
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23
used as individual samplers, the pouches can be stacked and
shrink-wrapped in quantities of, for e~cample, 1000 pouches
rather than being wound onto rolls as are the pouch labels.
Tn another embodiment, oligomer patches are bound to
the inside (bottom) surface of the top barrier member of
each pouch label instead of, or in addition to, the oligomer
patches attached to the inside (top) surface of the bottom
barrier member. A fragrance layer then remains with the top
barrier member when peeled, and this can be removed from the
mailer or magazine. Fabrication of this embodiment would
involve applying perfume to the inside (bottom) surface of
the top barrier member (and curing the oligomer if used)
prior to nipping together and sealing the top and bottom
barrier members in zones 4 and 5 (FIG. 1)
An alternative packaging method is to seal the top and
bottom barrier members or films with a pressure sensitive
adhesive or other adhesive, thereby eliminating the
necessity of heat sealing. This method is effective,
however, only with adhesives which prevent the fragrance
from escaping through the adhesive seal over a period of
time.
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The perfurne pouch and pouch label of the present
invention is further described with reference to the
following non-limiting example:
EXAMPLE
A roll of about 1500 perfume pouch labels was prepared
utilizing as a starting material a silicone coated release
liner 20 from James River Corporation consisting of 30#
paper coated on one side with silicone and a generic
pressure-sensitive acrylic-adhesive layer 40. A laminate of
polyethylene 24', nylon 24 " , polyethylene 24 "', (total
thickness about 0.003 inch, with nylon comprising about 10~
of thickness) from James River Corporation was laid down on
the silicone and adhesive coated release liner 20. A
fragrance-doped polyurethane having a thickness of about
0.0015 inches containing a polyurethane oligomer (see
Example in U.S. patent 4,880,690 for manufacture of
oligomer) was printed onto the top surface of laminate 24.
The fragrance-doped polyurethane consisted of, by weight,
about 730 oligomer, 25~ Calvin Klein Obsession fragrance,
and 2o photoinitiator (Irgacure 651 from Ciba-Geigy
Corporation of Hawthorns, New York). The oligomer patches
were cured by ultraviolet radiation during travel (at web
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speed of about 80 feet per minute) past a lamp providing
radiation at an intensity of about 200 watts per inch. A
top barrier film 50 about 0.004 inches thick from American
Packaging Corporation and consisting of a laminate of 26#
paper 50', polyethylene 50 " , aluminum foil (0.0003 inch
thick) 50 " ', and polyethylene 50 " " , coated with the low
melting temperature polymer EVA (ethylene vinyl acetate)
50 " " ' was applied to the top surface of the structure.
The top and bottom laminates 50 and 24 were heat sealed with
a rotary die, printed with single color text, then die cuts
were made and the matrix 78 was peeled away. About 1500
units of the finished pouch labels were wound for storage
onto a twelve-inch diameter roll with three-inch core. The
pouch labels were later successfully transferred from the
roll to magazine pages, utilizing standard label transfer
machinery.
while the foregoing invention has been described with
reference to its preferred embodiments, it is not limited to
such forms. For example, the printing performed in zone 6
can be performed earlier in the process, e.g. prior to
heat-sealing, or as a separate operation in preparing the
~?
26
top barrier member wound onto and supplied as a roll 54.
The invention includes all embodiments and their equivalents
within the scope of the appended claims.
