YUPO® is a synthetic paper made mostly from
polypropylene film to which inorganic fillers and
small amounts of additives are added. In principle,
the film is formed while creating microvoids by
stretching it biaxially. The most distinguishing feature
is its multilayer construction, which consists of a base layer
and paper-like layers laminated on either side,
whose thickness can be adjusted to provide products
ranging from thin to thick.
YUPO® 's unique production
method is patented
around the world.
YUPO® is made up of 3 layers. The base layer
is stretched both lengthwise and crosswise,
while the surface layer is stretched crosswise
(bi-axially oriented film forming process).
This production method is only possible because
of our unique technology, which is protected by
patents around the world, including in Japan,
America, and China.
YUPO® 's Structure
Strength comes from the base layer,
while the paper-like characteristics
come from the surface layers.
YUPO® is a synthetic paper made up of 3 layers:
a base layer and a surface layer laminated to each side.
The base layer gives YUPO strength, while the stretching
process provides the surface layer with innumerable
micro-voids (microscopic pores), which make it very white,
as well as lightweight and suitable for handwriting.
Check YUPO® 's grain
Just like paper, YUPO® has a grain.
The grain runs along the first dimension listed in the label,
so make sure you check this before use. Many YUPO®
sheets have a short grain; however some products
that are prone to fanning out (inaccurate registration)
have a long grain.
The grain direction
has double the stiffness.
For uses that require stiffness, such as swing POPs,
make sure the grain is aligned with the curve.
The stiffness in the direction of the grain
has twice that of the grain.