Note: Descriptions are shown in the official language in which they were submitted.
CA 02510403 1997-07-09
POP-UP TISSUE DISPENSER
AND METHOD AND APPARATUS RELATING THERETO
This application is a divisional application of the parent Canadian Patent
Application
No. 2,260,843 having an international filing date of July 9, 1997, and
assigned to the same
assignee.
Background of the Invention
The present invention relates to tissue dispensers. More particularly, the
invention
pertains to an improved pop-up dispenser for tissue products, as well as a
method and
an apparatus for packaging tissues.
Pop-up style dispensers have been used for many years to dispense individual
folded
sheet products such as facial tissues or the like. In general, pop-up
dispensers typically
include a container and a stack or clip of prefolded interfolded tissues
disposed within the
container. The tissues may be C-folded or V-folded so that once the top tissue
in the clip
is withdrawn, subsequent sheets are individually presented for individual use.
One problem that has persisted through the years concerns the user being able
to
identify the proper location at which to grasp the top sheet to remove it
through the
opening in the container. tZuite commonly with present commercial tissue
containers, the
user ends up tearing tissues, separating tissue plies, or dispensing multiple
tissues when
attempting to remove the top tissue. Furthermore, many commercial tissue
dispensers
inGude a plastic film over the opening of the container. Once the top tissue
has been
raised through a dispensing slit in the plastic film, subsequent tissues are
held in an
upright position by the plastic film for individual use. If the user has to
search with his or
her fingers to identify the proper location to grasp the top sheet, the
plastic film can
become distorted. Particularly with larger size containers, this may result in
fall-backs,
which refers to subsequent tissues dropping back down into the container
rather than
staying upright and ready for use.
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A number of solutions have been proposed to address the problem of dispensing
the top
tissue in a pop-up dispenser. For example, it has been recommended that
portions of
the top sheet can be physically elevated, and thus, more readily identifiable
from
surrounding portions of the top sheet. It has also been suggested that the top
sheet can
be bonded to a removable panel of the carton, so that the top sheet is
automatically
raised through the opening when the panel is removed to forth the opening.
Other
solutions to the problem have suggested adding separate strips within the
stack of folded
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CA 02510403 1997-07-09
sheets, so that when the separate strips are pulled through the opening of the
container,
the top sheet is pulled through as well.
The foregoing and other proposed solutions attempting to facilitate proper
removal of the
top sheet in a pop-up dispenser have either been unsatisfactory or have
created new
problems. Most notably, past attempts to address the issue have increased the
difficulty
and/or expense of manufacturing pop-up dispensers, such as by adding new
elements
within the stack. Moreover, these past attempts to facilitate proper removal
of the top
tissue have not assisted the user in visually identifying the proper location
at which to
grasp the top sheet.
Therefore, what is lacking and needed in the art is an improved pop-up tissue
dispenser
that faalitates identification and removal of the top tissue without wasting
tissue, and that
can be economically manufactured.
Summary of the Invention
In response to the discussed deficiencies in the prior art, a new pop-up
tissue dispenser
has been developed. The dispenser improves the ease at which tissue products
are
dispensed from a pop-up carton.
In one embodiment, a pop-up tissue dispenser includes a carton and a clip of
tissues
disposed within the carton. The carton has a plurality of walls that define a
carton
opening through which the tissues may be removed from the carton. The clip
includes a
visually distinctive tissue and a plurality of other tissues. The visually
distinctive tissue
and the other tissues are substantially identical except that the visually
distinctive tissue
includes a visual indicator. The visually distinctive tissue is oriented
within the carton
such that the visual indicator is visible through the carton opening prior to
removal of any
tissues from the carton.
This embodiment allows correct dispensing of tissues from the carton by
providing visual
identification of the best location for the user to grasp the first tissue in
the carton. As a
result, the user is able to easily dispense the top sheet and initiate the pop-
up feature for
the underlying sheets. This aspect saves the user from having to waste time
examining
the clip to determine a good place to initiate removal, and the improved
dispensing
eliminates wasting sheets on first dispensing. Also, the first tissue comes
out easily
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without being tom and without distorting the plastic film covering the carton
opening, if
present.
The clip of tissues may be interfolded, prefolded interfolded, or non-
interfolded. As used
herein, the phrase "prefolded interfolded" tissues means that the tissues are
folded and
interleaved with neighboring tissues immediately above and/or below in the
clip of
tissues. The tissues can be interleaved by any suitable means, inGuding the
use of an
interfolder as is well known in the papertnaking arts. If an interfolder is
used, consecutive
tissues will be attached to each other at perforation lines. In such cases the
unperforated
segments of the perforation lines should be sufficiently weak to permit the
consecutive
tissues to separate from each other upon removal from the carton. This can be
controlled by the degree of perforation of the tissue sheet. Tissues in a non-
interfolded
clip are not interleaved with neighboring tissues but are releasably attached
to
neighboring tissues so that upon dispensing one tissue the next adjacent
tissue is then
ready for dispensing. Suitable means for releasably attaching neighboring
tissues in a
non-interfolded clip include adhesives, mechanical engagement, ultrasonic
bonds,
thermal bonds, lap seals, fin seals, or the like, as is known in the art.
The term "visual indicator" is used herein to mean a continuous or
intermittent pattern
disposed directly on andlor in a tissue to visually identify for the user the
best location to
grasp a tissue to initiate dispensing. The pattern may consist of designs or
symbols,
such as alphanumeric characters, that are visually distinguishable by the
human eye
from surrounding regions of the tissue. The pattern is desirably formed of a
color that
stands out from the surrounding portions of the tissue and is clearly
identifiable through
any plastic film covering the opening to the container.
Other than the presence of the visual indicator on the visually distinctive
tissue, the
visually distinctive tissue and the other tissues are desirably substantially
identical in all
other material respects. Thus, the visually distinctive and other tissues are
formed of
essentially the same material and have the same basis weight, size and other
visual
properties as one another. Further, each of the other tissues is desirably
substantially
visually uniform, which as used herein means that any particular region of one
of the
other tissues is macroscopically indistinguishable from any other region of
that tissue,
and in particular that the other tissues are all of the same color. Point
bonding between
plies of tissue, fold lines, or the like, typically do not provide color
differentiation to .
characterize a tissue as substantially visually nonuniform.
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In another embodiment, a pop-up tissue dispenser includes a clip of
interfolded tissues
disposed within a carton. The clip includes a visually distinctive tissue and
a plurality of
other tissues. The visually distinctive tissue has primary and secondary folds
and
includes a visual indicator disposed adjacent the secondary fold. The other
tissues have
a primary fold and are substantially visually uniform. The visually
distinctive tissue is
oriented within the carton such that the visual indicator is visible through
the carton
opening prior to removal of any tissues from the carton.
In particular embodiments, the visual indicator is located less than about 2
centimeters,
and more particularly less than about 1 centimeter, from the secondary fold,
for improved
performance. In other embodiments, the visual indicator has a length dimension
greater
than a width dimension, and the length dimension is oriented parallel to the
secondary
fold. The proximity and orientation of the visual indicator relative to the
secondary fold
facilitates identification of the proper location at which to grasp the top
tissue.
In another embodiment, a pop-up tissue dispenser includes a clip of tissues
disposed
within a carton, and the clip includes a visually distinctive tissue and a
plurality of
substantially visually uniform other tissues. The visually distinctive tissue
and the other
tissues are substantially identical except that the visually distinctive
tissue is a different
color than the other tissues. The tissues are oriented within the carton such
that the
visually distinctive tissue and at least one of the other tissues are visible
through the
carton opening prior to removal of any tissues from the carton.
This embodiment utilizes a visually distinctive tissue that is a different
color from the
other tissues to facilitate correct dispensing of the first tissue from the
carton. The
visually distinctive tissue and one of the other tissues having a different
color are both
visible through the carton opening. The color interface that is fornned on the
user-facing
surface of the clip indicates the best location for the user to grasp the
first tissue in the
carton. The term "different color" is used herein to refer to tissues that
appear dissimilar
to a user viewing the tissues through the carton opening, based on differing
qualities of
light reflected by the tissues.
Also in response to the above-noted deficiencies in the prior art, a new
method of
packaging tissues has been developed. The method includes the steps of:
providing
several tissue webs that ace substantially identical to one another, the
several tissue
webs including a first tissue web and a plurality of other tissue webs;
transporting the
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CA 02510403 1997-07-09
several tissue webs to a folding station; interfolding the several tissue webs
at the folding
station to form an interfolded assemblage of the first tissue web and the
other tissue
webs; printing a visual indicator on the first tissue web; cutting the
interfolded
assemblage to forth a plurality of clips of interfolded tissues, each of the
clips comprising
a visually distinctive tissue having the visual indicator printed thereon and
a pturality of
other tissues that are substantially visually uniform; providing cartons for
the clips, each
carton comprising a plurality of walls that define therein a carton opening;
and placing
each clip in a carton and orienting the visually distinctive tissue such that
the visual
indicator is visible through the carton opening.
Further in response to the deficiencies in the prior art, a new apparatus for
packaging
tissues has been developed. The apparatus includes a web supply system adapted
to
provide several tissue webs that are substantially identical to one another.
These several
tissue webs include a first tissue web and a plurality of other tissue webs. A
transport
system is adapted to transport the several tissue webs to a folding station,
where a
folding device is adapted to interfold the several tissue webs to form an
interfolded
assemblage of the first tissue web and the other tissue webs. A printing
device of the
apparatus is adapted to print a visual indicator on the first tissue web. The
apparatus
also includes a cutting device adapted to cut the interfolded assemblage into
a plurality
of clips of interfolded tissues. Each of the clips includes a visually
distinctive tissue
having the visual indicator printed thereon and a plurality of other tissues
that are
. substantially visually uniform. A packaging system of the apparatus is
adapted to place
each of the clips in a carton. Each carton includes a plurality of walls that
define therein
a carton opening, and the visually distinctive tissue is oriented within the
carton such that
the visual indicator is visible through the carton opening.
The disclosed method and apparatus provide an economical means to manufacture
a
pop-up tissue dispenser that provides convenient dispensing of the first
tissue without
waste. The visual indicator can be printed on the first tissue web either
before or after
formation of the interfolded assemblage. Thus, the printing operation can be
continuously operated rather than having to discretely print on each clip.
Numerous features and advantages of the present invention will appear from the
following description. In the description, reference is made to the
accompanying
drawings which illustrate preferred embodiments of the invention. Such
embodiments do
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CA 02510403 1997-07-09
not represent the full scope of the invention. Reference should therefore be
made to the
claims herein for interpreting the full scope of the invention.
Brief Description of the Orav~ng~s
Fig. 1 representatively shows a perspective view of a carton of prefolded
interfolded
tissues illustrating one embodiment of the present invention.
Fig. 2 representatively shows an enlarged perspective view of a clip of
prefolded
interfolded tissues such as those which could be longitudinally folded and
placed in the
carton shown in Fig. 1, with the first and second tissues in the Gip slightly
folded back to
more Dearly illustrate individual tissues.
Fig. 3 representatively shows the carton of Fig. 1, with the first tissue
having been
removed from the carton.
Fig. 4 representatively shows an alternative clip of prefolded interfolded
tissues, with the
first, second and third tissues in the clip folded back to more clearly
illustrate individual
tissues.
Fig. 5 representatively shows a further alternative clip of prefolded
interfolded tissues,
with the first and second tissues in the clip slightly folded back to more
clearly illustrate
individual tissues.
Fig. 6 representatively shows a schematic illustration of a method and
apparatus for
manufacturing cartons of the type illustrated in Fig. 1.
Fig. 7 representatively shows an enlarged perspective view of a printing
device shown in
block form in Fig. 6, the printing device functioning to print a visual
indicator on a first
tissue web of an in-process interfolded assemblage of multiple tissue webs.
Detailed Description of the Preferred Embodiments
With reference to Fig. 1, a pop-up tissue dispenser formed according to one
embodiment
of the present invention is shown for purposes of illustration as an upright,
pop-up facial
tissue dispenser 20. The invention may also be utilized to dispense other
types of folded
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CA 02510403 1997-07-09
sheet products. Thus, the term "tissue' is not intended to be limited to
facial tissues, but
is used herein to include any individual sheet product, such as dry or
moistened wipes,
for example household or industrial wipes, soap or fabric softening sheets, or
the like.
The tissue dispenser 20 includes a carton 22 and a clip 24 (Fig. 2) of
prefotded
interfolded tissues disposed within the carton. The carton 22 is illustrated
as a
rectangular parallelepiped comprising a top wall 26, and opposite bottom wall
28, and
four sidewalls extending between the top and bottom walls. The sidewalls that
are fully
visible in Fig. 1 have been given reference numerals 30 and 31. The carton 22
may be
constructed in a variety of sizes and shapes as are well known in the art from
materials
such as paperboard, plastic, or the like. For example, in an alternative
embodiment the
carton inGudes a single cylindrical-shaped sidewall extending between the top
and
bottom walls (not shown). Further, as illustrated in Fig. 1, any of the
sidewafls such as
sidewall 31 may be constructed of one or more panels that are bonded together
by
adhesives, thermal bonds, or other suitable means.
The top wall 26 of the carton 22 defines a carton opening 34 in the form of an
aperture
through which tissues may be individually removed from the carton. The carton
22
optionally includes a plastic film 36 overlaying the carton opening 34 and
incorporating
intersecting dispensing slits 38 and 39. The use of the plastic film 36 is
desirable,
particularly for larger carton openings, in order to protect the tissues
within the carton and
provide sufficient resistance to prevent multiple tissue dispensing. The
plastic film 36
may be bonded to the top wall 26 by adhesives or other suitable means, and the
dispensing slits 38 and 39 may assume other forms such as a single slit, an
aperture or
the like. The carton 22 may optionally be provided with a removable panel (not
shown)
that creates the carton opening when the panel is removed.
An individual clip 24 of prefolded interfolded tissues is illustrated in Fig.
2. The clip 24
comprises a series of tissues beginning with a first tissue referred to herein
as a visually
distinctive tissue 40 and also including a plurality of other, underlying
tissues 42. The
underlying tissue 42 that is interfolded with the visually distinctive tissue
40 is referred to
herein as a second tissue and has been given reference numeral 44. The
visually
distinctive tissue 40 and the second tissue 44 are partially raised with a
comer turned
back in Fig. 2 to better illustrate interfolding of the tissues.
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CA 02510403 1997-07-09
Each of the visually distinctive and underlying tissues 40 and 42 has a
primary fold 50
that divides the tissue into upper and lower halves 52 and 54. Ail of the
tissues 40 and
42 include opposite longitudinal side edges 56 and opposite transverse end
edges 58
that extend between the side edges. The primary fold 50 in the illustrated
embodiment is
formed generally parallel to and intermediate the longitudinal side edges 56.
The visually distinctive tissue 40, unlike the underlying tissues 42, also
includes a
secondary fold 60 formed in the upper half 52 of the tissue generally parallel
to the
primary fold 50. The secondary fold 80 divides the upper half 52 of the
visually
distinctive tissue 40 into an inner segment 62 disposed between the primary
and
secondary folds 50 and 60 and an outer segment 84 disposed between the
secondary
fold 60 and a longitudinal side edge 56.
Each of the visually distinctive and other tissues 40 and 42 are substantially
identical in
terms of material formation except that a visual indicator 70 is disposed on
the visually
distinctive tissue. The visual indicator 70 illustrated in Fig. 2 comprises a
continuous,
colored graphic design of alternating wide and narrow portions. The visual
indicator 70
has a length dimension that is greater than a width dimension. The length
dimension of
the visual indicator 70 is oriented parallel to the secondary fold 60 and
extends between
the transverse end edges 58 of the visually distinctive tissue 40.
The visual indicator 70 is desirably located on the outer segment 64 of the
upper half 52
less than about 2 centimeters (cm.) from the secondary fold 60. In particular
embodiments, the visual indicator 70 is located less than about 1 cm. from the
secondary
fold 60 for improved performance.
The visual indicator 70 may be established on and/or in the visually
distinctive tissue 40
by any suitable means such as rotogravure printing, non-contact printing, or
other
suitable means. The printing may utilize inks, dyes, adhesives, waxes, or the
like.
The clip 24 and the visually distinctive tissue 40 are oriented within the
carton 22 such
that the visual indicator 70 is disposed adjacent the carton opening 34 and
visible
therethrough, prior to the removal of any tissues. 1f a plastic film overlays
the carton
opening 34, the plastic film desirably comprises a transparent material so
that the visual
indicator 70 is visible through the plastic film.
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CA 02510403 1997-07-09
In use, the user can locate the proper location at which to grasp the visually
distinctive
tissue 40 for removal by observing the location of the visual indicator 70.
The user is
guided by the visual indicator 70 to grasp the proximately positioned
secondary fold 80 to
remove the visually distinctive tissue 40 from the carton 22. As the visually
distinctive
tissue 40 is removed, the second tissue 44 is pulled through the dispensing
slits 38 and
39 as a result of interfolding of the visually distinctive and second tissues.
This pop-up
dispensing feature is illustrated in Fig. 3 where the second tissue 44 is
shown as being
positioned for use and held in place by the plastic film 36. It will be
appreciated as well
by those skilled in the art that the top dispensing fold configuration could
include two,
three or more tissue instead of just one as illustrated. Alternatively, the
tissues can be
non-interfolded and releasably attached to one another sufficiently to enable
pop-up
dispensing.
Significantly, the other, underlying tissues 42 do not include the visual
indicator 70, and
as a result, they are considered to be substantially visually uniform. Thus,
except for the
composition of the visual indicator 70 an the visually distinctive tissue 40,
the visually
distinctive and underlying tissues 40 and 42 can beneficially consist
essentially of the
same materials in essentially the same configuration. The composition of the
tissues will
depend upon their intended function, as is well known to those skilled in the
art.
The following Example is provided to give a more detailed understanding of the
invention. The particular amount, proportions, compositions, and parameters
are meant
to be exemplary, and are not intended to specifically limit the scope of the
invention.
A number of pop-up tissue dispensers were constructed comprising a flat-style
carton
with a clip of prefolded interfoided tissues disposed within the carton. A top
wall of the
carton defined a carton opening that was overlaid with a plastic film having a
dispensing
slit formed therein. The top tissue of the clip had primary and secondary
folds, with the
top tissue oriented within the carton such that the secondary fold was
positioned beneath
the carton opening.
AN of the tissues were generally uniformly white in color and substantially
identical except
for a visual indicator that was printed on the top tissue adjacent the
secondary fold. The
visual indicator comprised a continuous band of repeating text reading
"KLEENEX
Leading Edge." The term "Kleenex" is a registered trademark of Kimberly-Clark
Corporation, Neenah, Wisconsin. The visual indicator was printed on the top
tissue
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CA 02510403 1997-07-09
using an ink-jet non-contact printing system with light blue ink in 12 point
type size. The
visual indicator was longitudinally oriented parallel to the secondary told
and spaced
within about 0.2 cm. of the secondary fold.
Various alternative embodiments are possible where the visual indicator 70 is
not
disposed on the first tissue in the clip 24. One such embodiment is
illustrated in Fig. 4,
wherein a dip 100 of prefolded interfoided tissues includes a first tissue 102
and a
second tissue 104 in a so-called "double pop" arrangement. As used herein, the
term
"double pop" refers to the first two tissues of a clip being folded together
in a common
manner such that both tissues are removed from the carton at the same time to
initiate
dispensing of tissues from the carton. A third tissue in the dip 100 includes
a visual
indicator 70 and will therefore be referred to as the visually distinctive
tissue 106.
Desirably, the visually distinctive tissue 106 is located within the first 3
tissues of the first
tissue.
The first and second tissues 102 and 104 include primary and secondary folds
50 and
60. The upper half 52 of the visually distinctive tissue 106 is disposed
between the
upper and lower halves 52 and 54 of the first and second tissues 102 and 104.
The
visual indicator 70 is desirably located adjacent the secondary fold 60 of the
first and
second tissues 102 and 104. In particular, the visual indicator 70 is
desirably located
within about 2 centimeters, and more particularly within about 1 centimeter,
of the
secondary fold 60 of the first and second tissues 102 and 104. Thus, the
visual indicator
70 is not covered by the upper half 52 of the first and second tissues 102 and
104 and
will be visible to the user through the carton opening 34 when the clip 100 is
positioned in
the carton 22. Despite the visually distinctive tissue 106 not being included
in the top
dispensing fold configuration, the close proximity of the visual indicator 70
to the
secondary fold 60 of the first and second tissues 102 and 104 provides the
necessary
indication to the user of the proper location to grasp the folded edge on the
user-facing
surface of the clip 100.
As illustrated in Fig. 5, a visually distinctive tissue 110 may also be
obtained by
incorporating a tissue that is of a different color than the other tissues.
More specifically,
a clip 112 of prefolded interfolded tissues includes a visually distinctive
tissue 110 and a
plurality of substantially visually uniform other tissues 114. The visually
distinct tissue
110 and the other tissues 114 are desirably substantially identical except
that the visually
distinctive tissue is a different color than the other tissues. For example,
the visually
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CA 02510403 1997-07-09
distinctive tissue 110 may be blue and the other tissues 114 may all be white.
In the
illustrated embodiment, the visually distinctive tissue 110 is the second
tissue in the clip
112, although its position may be altered as discussed above in relation to
the visually
distinctive tissues of the previous embodiments.
The clip 112 is oriented within a carton 22 so that the visually distinctive
tissue 110 and at
least one of the other tissues 114 form part of the user facing surface of the
clip and are
visible through the carton opening 34 prior to removal of any tissues from the
carton.
The different color of the visually distinctive tissue 110 and the other
tissues 114 creates
a color interface 120 that identifies for the user the best location to grasp
the first tissue
in the carton.
A particularly desirable method and apparatus for packaging tissues according
to the
present invention is schematically illustrated in Fig. 6. A web supply system
72 is
adapted to provide several tissue webs 74 (Fig. 7) that are substantially
identical to one
another. The web supply system 72 may comprise, for example, a plurality of
unwinds
for dispensing roll product. The tissue webs 74 include a first tissue web 75
(Fig. 7) and
a plurality of other tissue webs that are transported by a transport system 76
(Fig. 7) from
the web supply system 72 to a folding station 78. The transport system 76 may
comprise
a plurality of conveyors, vacuum belts, or the like.
The tissue webs 74 converge at the folding station 78, where a folding device
is adapted
to prefold and interfold the tissue webs into an interfolded assemblage 80
(Fig. 7) of the
first tissue web 75 and the other tissue webs. In one embodiment, the folding
device
provides each of the tissue webs with a primary fold 50 and additionally
provides the first
tissue web 75 with a secondary fold 60 (Fig. 2). The folding station 78 may
function
simply as an assembly station where the tissues are non-interfolded, as
discussed
previously.
The interfolded assemblage 80 may then be transported via the transport system
76 to
an optional marrying station 81. The marrying station 81 may be employed to
integrate
the interfolded assemblage 80 with other interfolded assemblages (not shown)
to form a
final assemblage having the desired number of tissue webs. The marrying
station 81
could alternatively be located later in the process or not be employed.
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CA 02510403 1997-07-09
The transport system 76 next conveys the interfolded assemblage 80 to a
printing device
82, which is adapted to print a visual indicator 70 on the first tissue web
75. Fig. 7
representatively shows operation of the printing device 82 as the interfolded
assemblage
80 passes beneath the printing device in the direction of arrow 84. One
suitable printing
device 82 is an ink jet printer available from Videojet Systems International,
Inc. of
Wood Dale, Illinois. The printing device 82 may be located within the
manufacturing
process so that the visual indicator 70 is printed on the first tissue web 75
after formation
of the interfolded assemblage 80. Alternatively, the printing device 82 may be
located
prior to the folding station 78, such as the alternative location designated
reference
numeral 86 in Fig. 6, whereby the visual indicator 70 would be printed on the
first tissue
web 75 before formation of the interfolded assemblage 80.
The complete assemblage is then transported to a cutting device 92. The
cutting device
92 is adapted to cut the interfolded assemblage 80 into a plurality of clips
24 of prefolded
interfolded tissues. The cut first tissue web 75 will form the visually
distinctive tissue 40
of the clip 24 and will include the visual indicator 70. The individual clips
24 are taken by
the transport system ?6 to a packaging system 94 that is adapted to fold the
clips if
necessary and place each of the clips in a carton 22. The clips 24 and the
visually
distinctive tissue 40 are oriented within the carton 22 such that the visual
indicator 70 is
visible through the carton opening 34. The process and apparatus may be
modified of
course to change the location of the visually distinctive tissue 40 to other
than the first
. tissue in the clip.
The foregoing detailed description has been for the purpose of illustration.
Thus, a
number of modifications and changes may be made without departing from the
spirit and
scope of the present invention. For instance, alternative or optional features
described
as part of one embodiment can be used to yield another embodiment.
Additionally, two
named components could represent portions of the same structure. Therefore,
the
invention should not be limited by the specific embodiments described, but
only by the
claims.
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