Size, Shape, Colour and Adhesive
What are the limitations on the size and shape of a label?
Answer: There are a few restrictions on label
size, but hardly any on shape. Just about any shape that can be
drawn by hand or by computer can be made into a label, the main
constraint being the possible problem in removing the matrix (i.e.
the unneeded material between labels) if the size and detail of a
label component is very small or intricate. Imagine, for example, a
"holiday sun" image with very fine or spikey rays. Peeling off the
matrix between the rays, without ripping it (and leaving some
behind on the liner,) could be difficult. So something to keep in
mind is that a label with the matrix left in place is only suitable
for hand application.
As for the size, there are limiting factors for maximum length
and width, but essentially none for smallness. In theory, a label
can be as long as the roll of stock it is printed on, i.e. several
thousand feet. However, the plate cylinder that prints the label
image introduces a hairline gap on each rotation, (every 24 inches
for the largest cylinder.) Hence a solid line or design could not
be printed on the whole roll, but a repeating pattern or text
message, with spaces for the tiny break, could be. (There are ways
to disguise the gap - it need not be a straight line, for example -
and there are special laser engraved plate cylinders available
without a seam.)
In practical terms, though, a standard butt- or die-cut label is
limited in length to 24 inches or less, because that is all the
rotating cutting tool allows. Maximum width is determined by the
web size and the complexity of a label's printed image. Full width
of the Aquaflex web is 10 inches, but this could only be used if
there were no requirement for registration marks, standard for most
jobs.
Accordingly, 9 1/2" is the largest practical width, and 9 1/4"
is more common. Within the basic 24" x 9 1/4" dimensions, Label
Innovation Inc. has manufactured some very small labels, including
a set of tiny printed circles designed for sticking on the top of
golf tees!
How do I decide between a butt-cut or a die-cut label?
Answer: The main factor in choosing one of the
label cuts is how the label will be applied and used. Another
important factor is cost, with die-cut labels being relatively more
expensive. A butt-cut label is separated from its neighbours on the
label liner by a simple, straight-line cut, like a peel and stick
postage stamp. It might be called utilitarian - less costly to
produce than a die-cut label, and economical for application on an
inexpensive product, or on one where the label will be seen only
once, or thrown away. A butt-cut label will naturally have straight
sides and square corners. (A die-cut label can have square corners,
too, but added to the cost of the required die is the extra expense
of "sharpening" the die's inside corners.)
A die-cut label can be produced in almost any shape, from round
to angular, with various combinations of straight lines and curves
being the usual. The rounded corners possible with a die-cut label
are less likely to dog-ear, or peel after application, and a
die-cut label generally has a nicer look than a butt-cut one.
Labels to be applied automatically need to have spaces between
them, calling for die-cutting. The press removes the extra material
(i.e. the matrix) surrounding each label. This unused material adds
to the cost in large runs, essentially because the press is
generating fewer labels per unit width and length of stock.
Label Innovation carries a wide variety of dies, which alone or
in combination can meet most customer label specifications. The
most costly option, a custom die, involves the preparation of a
die-line (i.e. artwork for the die's shape) and an added label
production delay while the die is manufactured.
Will my printed label look exactly like the image on my designer’s colour laser proof?
Answer: No it will not, although that should
not be a problem if you are happy with the proofs and are confident
that colour specifications will be rigorously followed in the
printing process.
While the quality of computer-generated images is very good
today, laser printers are not exactly colour-faithful. Laser
printers show the location and "look" of fonts, shapes and the
precision of colour breaks well, but fall somewhat short when it
comes to colour (tint) accuracy. This is particularly true for
images rendered in process colour. In the simplest case, when a
designer specifies an ink colour for the graphics software, the
shade will appear different on the printer output compared to the
computer screen. There would be a further difference if the image
were printed on another laser printer, and/or with another paper
stock. However, by means of design software, specified colour will
be transmitted to the plate maker and to the label printer's ink
management system, and you can be assured it is what will be
applied on the press.
But there is another fly in the "ink-ment": a selected colour
may look different when printed on the chosen label stock. The
answer to this and other concerns about your label's printed look
is to work with Label Innovation's production team from an early
stage, tapping into the available design and printing techniques to
translate your expectations into an acceptable end product.
I am having a two-colour label printed on clear stock. Why was a third colour of opaque white added behind the image?
Answer: Delivering quality products to you is
Label Innovation's top priority. So for quality and speed of
drying, Label Innovation uses a thin film of ink which results in a
translucent colour. In order for any colour to show its true
intensity, light must be reflected back from a white surface --
such as a white label stock. Of course labels do not have to be
printed on white stock only, many labels are printed on clear stock
for a variety of reasons. If you choose to print a label on clear
stock though, there is not a white background from which to reflect
the light and so the colours may appear dull. To avoid this, opaque
white is printed on the clear stock first to provide the white
background and then the image is printed over this. This white
layer can be seen by looking at the label from the back.
In addition, it also depends on what type of surface the label
is to be applied to. If the clear label is going to be applied to a
white surface, the opaque white layer is not needed. If, however,
the surface is darker, it is still needed to reflect the light and
show the intensity of the colour.
How do you determine what adhesive to use?
Answer: There are a number of
factors that dictate the choice of adhesive, and these may be
grouped in three categories. The first two of these might be
combined under the term "performance".
Environmental factors include such things as the
temperature, humidity and physical abuse to which the adhesive will
be exposed. Does it have to function in a freezer, or on a hair
dryer? Will it remain working on a product subject to knocks and
abrasion, or submersion in water or other liquids?
Special usage factors cover matters like the
required ease or difficulty of removal; the necessary staying power
(One year? Ten?); and the existence of any regulations or standards
governing application, something particularly important with
medical products. For instance, the adhesive sticking a label to a
plastic blood bag must be certified as unable to permeate through
the bag to contaminate the contents.
Fundamentally, though, the type of adhesive is
determined by the surface upon which it is to be used. Adhesion is
the force of attraction between unlike materials, similar to a
magnetic force. The strength of attraction is determined by the
surface energy of the material - the higher the energy the greater
the attraction.*
Surface energy is measured in units of dynes/cm.
Knowing that Teflon® has a surface energy of 18, while aluminium's
surface energy is 840, for example, you can see why very different
adhesives would be needed for labelling the inside and outside of a
non-stick fry pan.
Label Innovation has considerable experience in
selecting adhesives based on the required application, and works
closely with customers to ensure they get the adhesion performance
they need.
(*Ref.: "Fundamentals of Adhesion", 3M Corp.)
Ordering
How much will my label cost?
Answer: There is no rule of thumb, but 1,000
six-colour labels on film can cost one to two dollars a label,
while 50,000 one-colour, paper labels might cost a few cents each.
Since press set up represents most of the cost for a short run, it
is always advisable to buy the largest quantity consistent with
your application requirement. Additional thousands on an order are
relatively inexpensive, whereas a re-order will mean a set up cost
again.
For example, if we take a 3" x 2" label using four-colour
process, white high gloss paper, a permanent adhesive and a
standard die, the cost would be:
| Quantity |
Unit |
Total Cost |
| 1,000 |
$1.23 |
$1,230.00 |
| 5,000 |
$0.26 |
$1,300.00 |
| 25,000 |
$0.06 |
$1,500.00 |
| 50,000 |
$0.04 |
$2,000.00 |
| 100,000 |
$0.03 |
$3,000.00 |
Label Innovation will present your cost to you in a detailed job
estimate. For a custom label, the estimate will be calculated on
the basis of a number of factors and specifications, including:
- Material (paper, foil, film)
- Size, for material usage
- Custom die or not
- Quantity
- Number of colours
- Special inks
- Rolls, sheets, or fanfolded?
- Special adhesive
- Durability (varnished or laminated?)
If any of these details are adjustable, while still realizing
the job objective, the Label Innovation Team will work with you to
achieve the lowest cost for your order.
How can I avoid the time-wasting business of alteration and re-submission of electronic artwork?
Answer: There are a number of things that may
go wrong between sending in an artwork e-file and the final proof
sign-off, but the simplest answer to the question is, "just follow
the LINC formula."
Label Innovation actually prefers receiving electronic artwork
for most jobs, and accordingly has set out guidelines to ensure the
smoothest path between original art and final proof.
The initial criteria cover the requirements for the basic way
the design must be constructed, to reflect the differences between
standard offset and flexographic printing. So one potential "return
to sender" for the artwork can be avoided by ensuring your artist
is working with LINC's
Graphic Designers' Guide to Flexo Labels. Anyone who uses a
computer knows how frustrating it is to receive a message or a file
that cannot be opened and read. If this happens with a customer's
artwork, LINC has little option but to send it back for
reformatting.
There are detailed requirements set out in LINC's Graphic
Designers' Guide to Flexo Labels.These guide your designer in the
technical necessities for file preparing, saving or exporting,
compressing, and sending to LINC. Adhering to these is a simple
recipe for once-through art.
A final word of caution: nearly everyone uses a computer these
days, and it may be tempting to submit what amounts to "do it
yourself" electronic artwork. This is unlikely to meet any of the
written requirements mentioned above, and will surely wind up being
returned to you for extensive modification. "Make it go - use a
pro."
What are the steps in obtaining a product from Label Innovation Inc.?
Answer: Step 1: Client Enquiry
The process begins with the customer making an inquiry, often
over the telephone. There follows an in-depth investigation by
Client Services of precisely what is required, including any
special needs the customer may have, and how LINC can manufacture
the item.
Step 2: Quote
This results in a custom quote, with Client Services following
up with the customer to ensure everything is clear.
Step 3: Placing an Order
The customer's placing an order for the item initiates internal
records to keep the job on track. A work docket is generated which
will contain all the necessary information to produce the job.
Materials such as facestocks, adhesives, liners, inks and dies (if
necessary) are ordered.
Step 4: Artwork (if Required) Received
The artwork for the product is then processed, (LINC can do
basic typesetting and layout, but the customer must arrange for
anything more involved, like design work.) The art generated for
plate making is submitted for the customer's proofing and
approval.
Step 5: Production
Upon acceptance of the final artwork, the plates are made and
die(s) ordered as necessary. Press time is scheduled at this
point.
Step 6: Re-winding
When the job comes off the press it is rewound (if required in
rolls) and given a preliminary inspection. With packaging comes a
final inspection, and then the product is shipped.
Step 7: Invoicing
Finally, an invoice is prepared and sent to the customer. Client
Services then follows up to ensure that all aspects of the work
were satisfactory.
Converting
What can a Converter do in addition to printing labels?
Answer: Converter is an industry name for a
manufacturer like Label Innovation that turns bulk, normally rolled
material, into a serviceable product or specialty component which
may itself be delivered in rolls, or sheets. The process may or may
not involve printing on the end product, but the main tool used in
converting is a high-speed web process.
What is a specialty component?
Answer: In the converting business, one of the
simplest products is an adhesive label - a piece of material with
or without printing, temporarily stuck to a liner in sheet or roll
form. The precision equipment used to make this may also be
employed in manufacturing component parts that customers use in the
assembly of their own products.
The components are called "specialty" because they are custom
designed to the specifications necessary for incorporation in the
end product, making each pattern quite different from others.
Contrast this with adhesive labels; where the difference between
any two types may only be their shape or colour, and many may even
be available "off the shelf".
Label Innovation has developed considerable expertise in
fabricating complex specialty components using a variety of
materials. In the medical field, for example, it has produced the
components of an electrode connector for a life-saving device; and
the precision seals and gaskets in the disposable cartridge for a
hand-held blood analyzer. Another health and safety product is the
seal on an air filter replacement cartridge. In the security area,
LINC has manufactured over-laminates for products, (including
"black light" readability of invisible inks.)
The raw material used for specialty components takes many forms,
including film and foil as well as paper and latex rubber. It is
often laminated or multi-layered, with the final product bearing an
adhesive to either hold it together or use in its application
elsewhere. With or without printing, the component may have a
special coating applied to enhance durability or other
properties.
Finally, there is die cutting, through which the final product
is given not only an image or a coating, but also a shape. The
die-cut specialty component may be removed from its backing or
liner by hand or by machine in the customer's assembly process.
Discussion of specialty components would not be complete without
mention of custom packaging arrangements to suit the customer's
particular requirements. For example, LINC ships one of its
specialty components wound on movie film projector reels rather
than standard wind-on cores. The manufacture of a new specialty
component, particularly one that has little or no production
precedent, is a welcome challenge for Label Innovation.
What is Industrial Adhesive Tape?
Answer: Industrial tapes are laminating
adhesives used in specialty applications. Most often, these types
of adhesives are very aggressive and cannot be removed easily.
VHB (Very High Bond) from 3M is an extremely aggressive
industrial adhesive that can be used in a wide variety of
applications. This adhesive can be sourced in several different
thicknesses and converted into many different shapes and sizes. VHB
is solid adhesive rather than a thin coating of adhesive on both
sides of a foam. It is visco elastic (i.e. once stretched, it will
return to its original shape.) This adhesive's aggressiveness
accelerates over time to create a bond that is virtually
unbreakable. This specific adhesive is used to bond the wings of
aircraft. It is also used to mount satellite communications
hardware. Do you need a bond second to none? This might be the
product you require. Do you need it converted into a specific
shape? Give us a call to find out more.