Page 160 - C:\Users\Adik\Documents\Flip PDF Professional\Marketer PPT LR\

10. In-mould labelling (IML): In-mold labeling is a pre-decorating technique used
worldwide for blow molded bottles as well as injection molded and thermoformed
containers or other plastic objects. In-mold labeling is a process for labeling or
decorating a plastic object while the object is being formed in the mold. In the in-
mold labeling process, a label or appliqué is placed in the open mold and held in the
desired position by vacuum ports, electrostatic attraction or other appropriate
means. The mold closes and molten plastic resin is extruded or injected into the
mold where it conforms to the shape of the object. The hot plastic envelopes the
label, making it an integral part of the molded object. The difference between glue
applied labels and in-mold labels is that a glue applied label is stuck "on" the surface
of the plastic object; the in-mold label is imbedded "in" the wall of the object.
Advantages: Lower costs than other pre-decorating methods, No extra labeling
step or equipment, Increased packaging line speeds, Reduces in-house container
inventory, Improved appearance, Better stain resistance, Very good gloss and
finish, scratch resistant.
11. Decals: Decals can be either decorations or labels with instructions or
information. They are made of a pre-printed and pre-cut carrier, like a polymer film
or paper, with a pressure sensitive adhesive backing and a release sheet. The
release sheet is removed just before applying the decal to the surface of the part to
be decorated and the decal is then pressed into place. The compatibility of the
adhesive and the polymer film to the plastic must be checked. Decals generally use
a transparent plastic film, while labels normally use an opaque plastic, metallic,
multilayer sandwich base.
12 Hot Stamping: Hot stamping is a one-step, economical process for transferring
a high-quality image to a plastic part. . A heated die transfers the pattern from the
transfer tape (carrier), usually a metallized polyester foil, to a flat plastic surface to
be bonded permanently. In hot stamping, the decorative pattern is in the raised
pattern on the die or the part Patterns can vary from lettering to decorative designs
in pigmented, wood grain or metallic finishes. The process has limitations to be
used on flat surfaces. They can also be used to tip off a raised area on a part such as
raised letters or numbers.
13. Vacuum Metallizing: Process of depositing a metal layer onto a plastic part's
surface. Plastic parts are first applied with a base coat of enamel or lacquer to
provide leveling of the part surface and also act as adhesive. Part is fixtured onto a
rack is then placed in a vacuum chamber in which a metallic vapor is created and
deposited on the part. A protective, clear top coat is then applied over the thin metal
layer for abrasion and environmental resistance. Although aluminum is the most
frequently used coating, other metals such as gold, silver, brass, and copper may
also be used.
14. Painting: Painting involves application of a liquid coating onto the plastic
surface. Spraying, rolling and dipping methods are usually used. The coating is
dried in air or by heating in oven to solidify. As a general guide some types of plastic
can be painted, others can not. Generally the materials that can be solvent glued
can be painted. Some examples are Acrylic, HIPS, ABS and polycarbonate.
Generally the materials that have to be welded can not be painted. Some examples
are polypropylene and polyethylene.

DAVE TECHNICAL SERVICES 160