Note: Descriptions are shown in the official language in which they were submitted.
CA 02727361 2011-01-11
BOOKLET WITH ULTRA REMOVABLE ADHESIVE LABEL
Field
This technology relates to a booklet for application to media. In particular,
the
technology concerns a booklet having an ultra removable adhesive label layer
that is
removable from newsprint without damaging the newsprint. The booklet may
include
printed matter, such as advertising materials.
Background
It is known to have booklets attached to labels, which are utilized in
connection with
media. A typical booklet includes a folded booklet portion that is applied to
a label, which is
then adhered to a surface with a permanent adhesive. One type of assembly
utilizes a clear
plastic liner, such as polypropylene. The plastic liner remains permanently
affixed to the
newspaper, but the paper is still readable through the liner. The booklet may
be torn
completely from the plastic liner. When the booklet is removed, it does not
have any
adhesive or sticky surfaces. Because of the use of a plastic liner that is
applied directly to the
newsprint, these types of booklets have been known to foul up the production
line when
labels are misapplied. In addition, the permanently adhered plastic layer on
newsprint poses
a recyclability issue.
Fig. 1 shows a prior art booklet that is positioned on a liner 1. The liner 1
is a web
that may be pulled through a printing press. A clear plastic label 2 is
attached to the liner 1
with a permanent adhesive (not shown). A booklet 3 is coupled to a clear
plastic cover 4 that
adheres to the underlying plastic label 2. The clear plastic cover 4 is longer
than the length
of the booklet 3 and adheres to the top surface of the booklet. Perforations 5
are provided at
the ends of the cover 4 to allow a user to tear off the excess plastic when
removing the
booklet 3 from the plastic cover 2.
Summary
In accordance with the teachings described herein, a booklet with a label
having an
ultra removable adhesive is described.
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Brief Description of the Drawing Figures
Fig. 1 is a plan view of a prior art label and booklet that incorporates a
permanently
adhered label;
Fig. 2 is a plan view of a plurality of example labels and booklets applied to
a release
liner;
Fig. 3 is a cross-sectional view of an example booklet and label applied to a
release
liner;
Fig. 4 is a perspective view of two labels/booklets applied to a liner with
one of the
booklets in an open position to reveal underlying pages of the booklet;
Fig. 5 is a perspective view of an example booklet after the example label has
been
removed;
Fig. 6 is a plan view of the eight page booklet of Fig. 5 in an unfolded
position;
Fig. 7 is a perspective view of an example six page booklet;
Fig. 8 is a plan view of the six page booklet of Fig. 7 in an unfolded
position;
Fig. 9 is a perspective view of a four page booklet;
Fig. 10 is a plan view of the four page booklet of Fig. 9 in an unfolded
position;
Fig. 11 is a plan view of a perforation pattern that may be utilized with the
example
label and booklet;
Fig. 12 is a schematic of an example process that may be utilized to form the
example
label/booklet combination; and
Fig. 13 a microscopic view of the ultra removable adhesive that is applied to
the label
as part of the example booklet and label.
Detailed Description
The example booklet with removable adhesive label 10 is utilized on newsprint
and
other media to provide an advertising booklet 16 that is wholly removable from
the
newsprint. An ultra removable adhesive 12 is utilized that adheres properly to
the newsprint
during dispensation of the label 14 from a dispensing apparatus and
installation of the label
14 onto newsprint on a moving printing press. A label 14 is removable from a
booklet 16 so
that the newsprint is not damaged or torn when the label 14 is removed and no
or minimal
adhesive 12 remains on the newsprint. The booklet 16 may be torn from the
label 14 so that
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only the booklet remains. The example booklet with label 10 may be applied
successfully
with both high speed and slower speed printing presses.
The example booklet with label 10 may be dispensed onto the pages of a
newspaper.
It is important to recognize that if the adhesive that is utilized is too
weak, the labels 14 will
fly off the newsprint and be wasted. The labels 14 may also be prematurely
dispensed from
the liner 18 by the application machinery and may never reach the newsprint.
With the
higher speed machines of today, it is important to match the various materials
of the
booklet/label 10 to the paper and the speed of the printing process. A goal of
the example
booklet with label 10 is to provide a high success rate in the application of
the booklet/label
10 to newsprint with high speed printing presses, such as those in an
approximate speed
range of 40,000-60,000 papers per hour. If the adhesive is too gummy, it may
cause damage
to the newsprint or foul the printing press.
Prior art label applications with a label that included a plastic liner that
was
permanently applied often resulted in the plastic labels fouling the printing
presses. Prior art
techniques had an approximately 60% application success rate, which is
generally
unacceptable. A desired success rate is in the range of 90-95% or greater
application
success.
Fig. 2 depicts a series of example booklets with labels 10 applied to a web
18, which
in this case is a liner. Fig. 3 depicts a cross-sectional view of a completed
booklet with label
10, as applied to a web 18, such as is shown in Fig. 2.
The example booklet with label 10 shown in Figs. 2 and 3 incorporates the
following
layers. A top or cover layer 20 is a clear plastic material, such as
polypropylene.
Alternatively, the top layer 20 could be a paper layer with printed material
applied to the
paper layer. A permanent or a removable adhesive 22 may be applied to the
underside of the
top layer 20 and may or may not adhere to the top page of the booklet 16. When
the entire
top layer 20 is coated with adhesive 22, the adhesive 22 adheres to both the
booklet 16 and
the label 14. There are examples where the adhesive 22 may be provided only on
the ends 42
of the cover 20, in which case the cover 20 will not adhere to the booklet 16.
Any type of
adhesive, whether permanent or removable, may be used, as known by those of
skill in the
art. The top layer 20 with adhesive 22 may be manufactured in advance on a
roll in a
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preassembled manner, or the adhesive 22 may be applied to the top layer 20
during printing.
An example of a top layer cover material 20 is polypropylene that is
manufactured by Mobil.
A booklet 16 is folded and positioned below the top layer 20 and above a paper
stock
layer 14. The paper stock layer 14 is referred to herein as a label 14 and is
the layer that is
adhered to newsprint during dispensing. The booklet 16 does not adhere to the
label 14, but
could, if desired. The paper stock layer 14 includes an ultra-removable
adhesive layer 12
attached to the lower surface thereof. The paper stock layer 14 is adhered to
a release liner
18 that may be coated with a release agent 24, such as a silicon material.
This allows for
easy removal of the label 14 from the release liner 18. The adhesive 12 on the
label 14 is
coupled with the release agent 14 so that the label 14 remains in place on the
liner 18 when
desired and is removable from the liner 18 when desired. The adhesive 12 is an
ultra
removable adhesive that has tack and peel qualities that allow it to be
applied to and removed
from newsprint without tearing the newsprint. In addition, the release liner
18/release agent
14 combination has a release level that assists in removal of the label 14
therefrom.
The booklets 16 shown are formed with a plow fold or double parallel fold.
Other
types of folds may also be used, including accordion fold and roll fold, among
others, the
invention not being limited to a particular type of fold. An example of a
double parallel fold
is shown in Fig. 5.
The top layer 20 has a width that is slightly greater than the width of the
booklet 16.
The top layer 20 has the same size as the label 14 because everything above
the liner 18 is
cut away into the label 14 shape during the printing process using a cutter,
such as a die
cutter 68. The booklet 16 is sandwiched between the top layer 20 and the label
14. In order
to remove the booklet 16 from the label 14, the top layer 20 may include
perforations 26,
although they are not required. The perforations 26 may be provided between
the edge of the
booklet 16 and the edge of the top layer 20 at both sides thereof. The
perforations 26 may be
defined immediately adjacent the edge of each side of the booklet 16 such that
when the
booklet 16 is torn from the label 14, plastic flaps do not remain on the cover
of the booklet
16. Alternatively, where no perforations are provided, a small tab of plastic
material will
remain on either side of the booklet 16 and may be torn or cut off, if
desired.
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Spacing is provided around each booklet with label 10 such that a small space
is
provided between each label 14 and on the sides of each label 14 where the
booklet 16 is not
present. The release liner 18 is present in these spaces.
In the newspaper industry, different paper and ink types are utilized by
different
newspaper publishers. Adhesives work differently on different types of paper.
Paper types
may be broken into groups based upon recycled content. The groups identified
herein are (1)
papers with less than 40% recycled content and (2) papers with greater than
40% recycled
content. Based upon the type of paper, adhesives will exhibit different
characteristics. Other
groups of paper type may also be identified based upon recycled content, as
well as other
factors. Other factors that affect how an adhesive will work on a particular
media include
supplier of paper, type of paper, type of grain of the paper, and chemicals
present in the
paper, among other factors.
Different types and thicknesses of stock may be utilized in producing the
various
layers of the assembly 10. For example, the cover layer 20 may be about 0.5 -1
mil thick.
One type of material that may be used is a clear film polypropylene. The label
14 may be a
60 lb per ream paper stock with two sides of gloss. Alternatively, the label
14 thickness
could range from about 40-80 lbs per ream with one or no sides of gloss. The
release liner 18
material may be a 52.5 lb per ream material. Other liner materials may also be
used such as
those ranging from about 40-60 lbs per ream. Types of liner materials that may
be utilized
include paper, poly coated paper, and polyester, among other types of
materials. The booklet
16 may be formed from a paper or other stock having a weight ranging from
about 40-60 lbs
per ream. More particularly, the booklet stock may have a weight of about 60
lbs per ream,
if desired. The adhesive 12, 22 may be applied to the various layers with a
chemically
engraved gravure cylinder, or other types of cylinders. Moreover, while a
booklet 16 is
disclosed herein, it is anticipated that other materials could be applied
using the process
taught herein, such as samples, objects, or other materials. Use of the term
"booklet" herein
is meant to encompass any type of booklet, object, or other material.
An ultra removable adhesive 12 is utilized that allows the label 14 to adhere
to the
newsprint properly during installation, but that is fully removable by a user
such that the
newsprint does not tear during removal. Depending upon the type of ink and ink
quality that
is applied to the newsprint, some print may transfer with the label 14, but
the newsprint will
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be fully readable after the label 14 is removed. Removal of the label 14 may
result in slight
lightening of the newsprint.
One type of adhesive 12 that has been found to work well with the first group
of
papers-those with 40% or less recycled content-has a peel strength of about 25-
60
grams/1" width, a loop tack ranging from about 140-300 grams/2" width and a
liner release
of about 10-60 grams/2" width. One type of adhesive 12 that has been found to
work well
with the second group of papers - those with 40% or greater recycled content-
has a peel
strength of about 10-25 grams/1" width, a loop tack of about 40-150 grams/2"
width, and a
liner release of about 15-150 grams/2" width.
A preferred adhesive 12 is a microsphere-based adhesive. Microspheres are
tiny,
microscopic beads in the adhesive that range in size from about 10 microns to
about 200
microns. The microspheres provide off-contact points which help to make the
adhesive
coating 12 more discontinuous than previously known techniques, which involved
smoothing
out the adhesive. A microscopic view of the roughness of the adhesive 12 when
applied with
a chemically engraved gravure cylinder, without smoothing, is shown in Fig.
13.
The liner 18 selection in connection with the adhesive 12 selection is also
important
to the success of dispensing of the booklet/labels 10 onto newsprint, and
converting, slitting,
die cutting, and stripping of the web material 10. The liner 18 must be
properly coupled with
the adhesive 12. Where a higher tack adhesive may work with one liner 18, it
may not work
with another, for example. The relationship of the label 14 to the liner 18 is
known as
release-how tight the label 14 adheres to the liner 18. One type of liner 18,
also referred to
as release paper, that may be utilized is silicon coated. The silicon coating
24 allows the
adhesive 12 to be peeled off the liner 18.
While prior techniques that utilized a plastic layer against the newsprint
often
gummed up the presses, the ultra removable adhesive labels 10 of the present
invention do
not foul up the machinery if they miss the target. In addition, the ultra
removable adhesive
12 leaves little, if any, adhesive behind.
Respective example booklets 16 are shown in Figs. 5-10. The booklet 16 in
Figs. 5
and 6 has 8 pages, four on the front and four on the back, and three fold
lines 28. The folding
pattern is referred to as a double parallel fold, among other names. The page
that is
positioned at the top is considered the cover page. The plastic cover material
20 and tabs are
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shown applied to the booklet 16 in Fig. 5. The tabs may be removed, if
desired. The booklet
16 in Figs. 7-8 has six pages, three on the front side and four on the back
side, and two fold
lines 28. The folding pattern of this booklet 16 is referred to as a roll
fold. The booklet 16 in
Figs. 9-10 has four pages, two on the front side and two on the back side, and
one fold line
28. The folding pattern of this booklet 16 may be referred to as a half fold,
among other
names. In Figs. 6, 8, and 10, multiple lines are shown around the edges of the
booklet 16.
The outer line 30 represents a bleed area for the printed matter, the center
line 32 represents
the die line (where the booklet 16 will be cut), and the inner line 34
indicates the printed
image area of the booklet 16. Other edges may alternatively be utilized. A
single unfolded
sheet of paper could also be used, such that the booklet 16 has two pages.
More than 8 pages
may be utilized. For example, 10, 12, 14, 16, or more pages could be used and
could be
folded in any folding pattern known to those of skill in the art.
The liner 18 shown in the figures has a width of about 3 1/8" + tolerances.
This
coincides with the width that may be utilized with label 14 applying machinery
that most, if
not all, newspaper printers utilize. Other sizes could be manufactured to be
hand applied, or
if a newspaper printer has a different size label applicator. The label 14
shown in the figures
has a width of about 3" tolerances. The cover 20 shown in the figures has
the same width
as the label 14. The booklet 16 shown in the figures has a folded width of
about 2.6"
tolerances and a height of about 2.375" tolerances. An about 0.0625" spacing
36 may be
provided between the edge of the label 14 and the edge of the liner 18. A
similar spacing
may be provided between each label 14. Alternatively, a slightly larger
spacing 38 may be
provided between the labels 14, such as about 0.125" spacing. Any size
spacing, label 14,
booklet 16 and cover 20 may be utilized. As shown in Fig. 4, perforations 26
may be
provided along the sides of the booklet 16 through the cover material 20.
These perforations
26 may be spaced about 0.1" + tolerances or another distance from the edge of
the label 14.
Other sizes of booklets 16 may also utilize the teachings of the example
booklet with
label 10, the invention not being limited to a particular size label 14 or a
particular size
booklet 16. While the finished, unfolded booklet 16 is described as being long
and thin, it
alternatively could be a larger sheet of paper that is folded into a smaller
size, such as credit
card size. Other shapes and sizes may be utilized.
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Numerous types of printing may be used on the booklet 16 or other parts of the
web,
if desired. Various types of printing that may be used, including water based
printing, UV
flexo printing, offset printing, and other types of printing.
Process of Production:
Fig. 12 depicts a schematic of the printing and assembly process 50 for a web
10 like
that shown in Fig. 2. While the various materials are shown in one location
relative to one
another, other locations could be used. For example, a label/liner stock 52 is
shown on the
right side with a booklet stock 54 on the left side. The location is not
critical, as long as the
web 10 can be assembled. All the materials could be positioned at one end of
the press, for
example, if desired.
A booklet stock 54 is provided for the booklets 16 and is positioned on a roll
at one
end of the machine. Depending upon the type of folding machine 62 utilized and
the number
of pages desired for the booklet 16, a width and type of paper is selected. In
the example
booklet 16, a paper having a width equal to the desired width of the booklet
16, such as
shown in Figs. 6, 8, and 10, is typically utilized. The booklet stock 54 goes
through a first
printing assembly 56 to print a first side of the paper. Then the paper is
turned using a turn
bar 58 or other assembly and the other side is printed in a second printing
assembly 60. The
booklet stock 54 then enters a folding unit 62 where the paper is folded from
a first width to a
second, smaller width. Any variety of intermediate rollers (not shown) may be
utilized
between the various steps to assist in guiding the web 10. The booklet stock
54 then enters
the nip rollers 64 to be assembled into a web 10 with the other materials. One
type of folding
technique that is useful is a fan folding technique. A fan folding technique
allows the
booklet stock 54 to run at high speeds consistently. Other folding techniques
may
alternatively be utilized, as described above.
A preformed label/liner material 52 may be utilized where a roll of material
is
produced in advance and added to the web assembly. In the example shown, the
label/liner
stock 52 is positioned on a right end of the press and enters the nip rollers
64 below the
folded booklet paper 54. This stock 52 is made in advance and then installed
on the press.
Alternatively, the label/liner stock 52 can be produced in the process 20 of
creating
the web 10 on a single or multiple machines. In particular, a roll of liner
and a roll of label
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stock (not shown) could be provided. Silicon 24 is applied to the upper side
of the liner 18
and an ultra removable adhesive 12 is applied to the lower side of the label
stock using a
chemically etched gravure roller or other application device and then the two
are joined
together with nip rollers. Once the two have been joined together, they may
enter the nip
rollers 64 where the final web 10 is produced.
A cover material having an adhesive applied thereto 66 is also installed on
top of the
web 10 at the nip rollers 64 where the final web 10 is produced. The cover
material/adhesive
roll 66 is a plastic cover, as discussed above and may be produced in advance
in a roll having
a pre-applied adhesive attached to the underside of the cover material. A roll
66 of this type
may be produced with or without a liner (not shown). Where a liner is
installed, the liner is
removed before the cover material roll 66 enters the nip rollers 64 where the
final web 10 is
produced. Where a preformed roll of cover material 66 is utilized, the roll 66
is positioned
on the press and the cover material 66 is then applied to the top of the
booklet 16 and over
the label/liner stock 52 at the nip rollers 64 where the final web 10 is
produced, as shown in
Fig. 12. The cover material 66 enters the nip rollers 64 above the folded
booklet paper 54
with the adhesive 22 facing downward. Alternatively, the adhesive 22 could be
applied to
the cover material 20 as part of the process 20 of creating the web 10, such
that cover
material stock is provided on a roll and adhesive is applied via a cylinder or
other applicator.
The nip roller 64 joins all three types of stock 52, 54, 66 into a single web
of material
10. Then a die cutter 68 cuts out the individual label portions 14 to provide
the spacing 36,
38 discussed above and as shown in Fig. 2. The die cutter 68 does not cut
through the liner
material 18, so the liner 18 remains intact. The waste material 70 is disposed
of and the
completed web 10 is then stacked upon itself 72 for shipping purposes. One
type of stack 72
may be an accordion fold stack where five booklet/labels 10 are provided in
each section. In
order to assist in folding the web into an accordion stack 72, perforations 40
may be
positioned through the liner 18 after every fifth label 14. An example
perforation pattern 40
is shown in Fig. 11. Other perforation patterns may alternatively be utilized.
The
perforations 40 may be formed through the liner 18 either before, after, or
during die cutting
step of the process 50. As an alternative to perforations, creases or other
folding techniques
(not shown) can be utilized to force the web to lie down properly in a stack.
In addition, an
indenting machine (not shown) may be used to assist in folding the web 10
sections into a
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stack 72. Alternatively, the web 10 may be rolled onto a roll. The completed
web of
booklets with labels 10 is then shipped to the respective newspapers for
application either
with a label applicator or by hand.
A firing mark (not shown) may be utilized on the rear surface of the release
liner 18
to signal when the booklets 16 are to be positioned on the label 14. The cover
material 20
may be perforated along the sides before it is fed into the nip rollers 64 and
then applied
inline with the booklet and liner/label stock 54, 52.
As discussed above, the label/liner stock 52 may be produced in advance or as
part of
the web creation process 20. In manufacturing the label/liner stock 52, ultra
removable
adhesive 12 is applied to the lower surface of the label stock 14. In order to
apply the
adhesive 12 to the label stock 14, a kiss coating technique is utilized along
with a chemically
engraved gravure cylinder. This provides a more consistent adhesive coating. A
photograph
of the adhesive applied to a label surface is shown in Fig. 13. A narrower
coat rate, e.g.,
thickness of the coating, is desired, along with better consistency of the
coating. In addition,
the adhesive is not smoothed out and is allowed to remain rough, which assists
in adhering
the final label 14 to newsprint. Alternatively, a direct roll coating could be
utilized. Both the
kiss coating technique and the direct roll coating technique may utilize a
Gravure cylinder
that is engraved. One preferred engraving technique is chemical engraving.
Other
techniques are also know for engraving cylinders and may be utilized.
During application of the cover plastic material 66, tension is applied to the
polypropylene layer to deter curling. Proper tension in the various layers of
the web 10
results in a flat-lying web. In addition, the speed of application is timed in
order to provide
layers that lie flat and do not curl. A variety of speeds must often be used
based upon the
particular newspaper that the labels 14 are being applied to. The adhesive 12
and liner 18
must be matched to allow the web 10 to lie flat and to dispense properly and
not pre-
dispense, or to inaccurately dispense.
The following factors should be considered in determining the types of
materials to
utilize with the process 20: cylinder type, adhesive 12 type, liner 18 type,
coating type 24 on
the liner 18, coating value and weight, and adhesive pattern, among other
factors. When the
adhesive 12 is applied to the label 14, it is desirable to provide a
microscopic pattern, such as
that shown in Fig. 13, which is somewhat uneven and discontinuous, and to keep
the coating
CA 02727361 2011-01-11
weight up, not smashed down. It is less desirable to smooth out the adhesive
coating since
less than 100% contact between the label 14 and the coating is preferred. The
uneven
coating creates random microscopic peaks and valleys. Others have defined
specific patterns
for adhesive patterns. Different patterns can be provided by using different
rollers, including
different random patterns.
An ultra removable booklet with label for application to media is provided for
a first
type of media having a recycled content of 40% or less and a second type of
media having
recycled content of 40% or greater. The booklet with label includes a release
liner, an ultra
removable adhesive layer, a paper stock layer, a booklet, an adhesive layer,
and a clear
plastic cover layer. The ultra removable adhesive layer has a peel strength in
a range of
about 25 gms/1" width to about 60 gms/1" width for the first type of media,
and a peel
strength in the range of about 10 gms/1" width to about 25 gms/1" width for
the second type
of media. The clear plastic cover layer has the adhesive layer applied to a
bottom surface
thereof and the bottom surface is positioned over the booklet. The booklet is
positioned over
the paper stock. The ultra removable adhesive layer is attached to the lower
surface of the
paper stock. The release liner is applied to the ultra removable adhesive
layer.
In an another example, an ultra removable booklet with label for application
to media
includes a release liner, an ultra removable adhesive, a paper stock layer, a
booklet, and a
covering layer. The covering layer is positioned over the booklet, the booklet
is positioned
over the paper stock, the ultra removable adhesive layer is attached to the
lower surface of
the paper stock, and the release liner is positioned below the ultra removable
adhesive layer.
The booklet with label may also include a silicon layer coupled to the release
liner
and positioned between the release liner and the ultra removable adhesive
layer. The booklet
with label may further include an adhesive layer positioned on a lower surface
of the
covering layer. The covering layer may be one of a paper stock or a plastic
layer. The
plastic layer may be a clear plastic layer. The clear plastic layer may have a
width that is
greater than a width of the booklet.
The ultra removable adhesive layer may have a preferred peel strength range
and the
preferred peel strength range varies based upon the recycled content of the
media. The media
may be newsprint having a recycled content that includes a first group having
a recycled
content of 40% or below and a second group having a recycled content of 40% or
above. For
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the first group of newsprint, peel strength may be in the range of about 25
gms/1" width to
about 60 gms/1" width. For the second group of newsprint, peel strength may be
in the
range. For the first group of newsprint, loop tack range for the ultra
removable adhesive may
be about 140 gms/2" width to about 300 gms/2" width. For the second group of
newsprint,
loop tack range for the ultra removable adhesive may be about 40 gms/2" width
to about 150
gms/2" width. For the first group of newsprint, the liner may have a release
characteristic of
about 10 gms/2" width to about 60 gms/2" width. For the second group of
newsprint, the
liner may have a release characteristic of about 15 gms/2" width to about 60
gms/2" width.
The covering may be a polypropylene that is coated with a permanent adhesive.
The booklets with labels may be spaced from one another on the liner and from
the
edges of the liner.
An example process for forming a web having a booklet positioned on a label
with an
ultra removable adhesive includes forming the label stock, forming a booklet,
applying the
booklet to the label stock, and applying a cover material over the label
stock. The forming a
label stock step includes providing a liner that is coated with a silicon
material; providing a
roll of paper stock, applying an ultra removable adhesive to a paper stock
utilizing a kiss
coating technique and a gravure cylinder; attaching the paper stock, adhesive
side down, to
the liner to form a label stock, with the silicon material being positioned on
an upper face of
the liner so that the silicon and ultra removable adhesive contact each other.
The forming the
booklet step includes printing indicia on at least a first side of a booklet
paper stock, cutting
the booklet paper stock, and folding the booklet paper stock.
The process may further include removing any excess material from the web of
materials to define distinct booklets with labels on a liner. The cover
material may be one of
a clear plastic material or a printed paper stock. The process may also
include perforating the
cover material in the vicinity of both ends thereof. The process may further
include
perforating or creasing the liner and stacking respective sections of the web
upon itself into
an accordion pattern so that each section lies flat.
The example process may also include controlling the tension of the label
stock,
booklets, and/or cover material as they move through the process so that
sections of the web
lie flat when completed. The example process may also include controlling the
speed of the
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label stock, booklets, and cover material as they move through the process in
order to avoid
curling of the booklets or labels.
The term "substantially," as used herein, is a term of estimation. The term
"about" as
used herein, means approximately 10%.
While various features of the claimed examples are presented above, it should
be
understood that the features may be used singly or in any combination thereof.
Therefore,
the claimed examples are not to be limited to only the specific examples
depicted herein.
Further, it should be understood that variations and modifications may occur
to those
skilled in the art to which the claimed examples pertain. The examples
described herein are
exemplary. The disclosure may enable those skilled in the art to make and use
alternative
designs having alternative elements that likewise correspond to the elements
recited in the
claims. The intended scope may thus include other examples that do not differ
or that
insubstantially differ from the literal language of the claims. The scope of
the disclosure is
accordingly defined as set forth in the appended claims.
13
