How does pouch lamination
work?
Laminating pouches
are pockets of laminating film into which the item to be laminated
is placed. In most cases a hot laminator is used to seal
the pouch and bind the layers together so that your document is
laminated. Cold pouch laminators are available, although they are
not as common as hot pouch laminators.
Two
layers: Hot
laminating pouches consists of two layers, a polyester-base film
layer and an adhesive resin layer that are bonded together. When
you run the pouch through your hot laminator, the heat melts the
adhesive resin layer, which then spreads over the document, hardening
as it cools and creating a bond between the paper and the polyester-based
layer of the pouch.
Hot
lamination material:
The polyester and adhesive content in hot laminating pouches is
defined as a ratio, sush as 3/2 or 1/4. The first number represents
the polyester content, while the second represents the adhesive
content. Ratios with larger polyester contents produce stiffer lamination.
Ratios with more adhesive contents will have a stronger bond. Stronger
bonds are neccessary when laminating thicker materials such as substrate
backing or hard plastic.
Cold
lamination material:
Cold lamination is used for heat sensitive documents. Cold laminating
pouches use a "sticky" adhesive that is activated by pressure instead
of heat allowing you to laminate items such as faxes, photos and
ink-jet printer paper without damaging them.
How pouch laminating works
Weights
and finishes
Hot
or cold pouch laminating?
Reasons
to use laminating pouches
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