Polypropylene Fabrics:
Woven (WPP) • vs • Non-Woven (NWPP)
& Custom Printing
• Polypropylene Printing • Printing Methods Explained • Screen-printing • Heat-Transfer Printing • Flexo-gravure • BOPP Lamination • Custom Branding • Woven Fabric Printing • Non-Woven Branding • Industrial Printing • High-Resolution Bag Printing • Flexographic Branding • Printing Guide
• Woven PP WPP Bags
• Bulk Bags
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What is Polypropylene?
Non-Woven & Woven Polypropylene
Polypropylene
must be recycled to retain it's eco-friendly status!
Polypropylene is a petrol chemical by-product
(petroleum-based plastic).
It is non-toxic and recyclable.
Branding: Printing Polypropylene
Printing Non-Woven & rPET(recycled plastic)
Screen-printing, Heat-Transfer, Flexo printing
continue reading...
•
The cheapest option is screen-printing.
•
Screen-printing allow inks to bond effectively
to the surface without compromising the
material’s strength or flexibility.
Water-based or eco-conscious inks are commonly used,
producing durable, vibrant prints that resist
cracking and fading with normal use.
These printing methods are well suited to logos, text,
and simple designs,
making non-woven and rPET products ideal for promotional,
event, and awareness applications while maintaining
their recycled and reusable benefits.
•
Non-Woven Polypropylene & rPET
Heat Transfers
Do’s and Don’ts for Heat Transfer
•
Polypropylene and rPET bags are plastic-based fabrics
and are naturally heat-sensitive.
•
When printing on these materials, special care
must be taken to avoid damage to the fabric.
•
Below are some practical do’s and don’ts
when decorating non-woven polypropylene and rPET bags.
•
Don’t
Do not
heat-press
non-woven polypropylene
at high temperatures,
as the fabric can melt or distort.
•
Non-woven polypropylene must always
be pressed at low temperature settings.
•
Choose heat transfer materials specifically designed
for low-temperature application.
•
As a general guideline, non-woven polypropylene bags
should not be pressed above 275°F (135°C),
as higher temperatures may cause melting or surface damage.
•
Low-temperature screen-printed transfers are recommended.
For correct printing on Non-woven & rPET
contact your printer.
•
Flexographic (Flexo) Printing
Printed using flexo print
(a high-speed industrial printing method ideal for large runs)
•
Because non-woven fabric bags are relatively inexpensive,
branding costs can easily exceed the cost of the bag itself.
•
For small quantities,
the most affordable branding option is usually
a one-colour screen print.
•
Flexographic printing, commonly known as flexo printing,
uses flexible printing plates.
In the past these plates were made from rubber,
but today they are typically produced from photopolymer.
•
The plates are mounted on cylinders in
a web press and rotate at high speed.
The inked plates carry a raised image
and transfer ink via an anilox roll, which controls
ink distribution through microscopic cells.
•
Each colour requires its own printing plate.
Thanks to advances in anilox rolls, plates, inks,
and printing presses, flexo printing is now capable
of producing high line-count images with excellent consistency.
•
Flexo printing adapts well to a wide range of materials,
including paper, cardboard, shrink sleeves, flexible packaging,
and non-woven polypropylene.
It supports multiple ink types,
such as water-based inks and UV inks,
making it a versatile and durable printing method.
•
Because of this adaptability,
flexo printing can be used on many substrates,
including plastic, clear polypropylene, metal, and paper.
•
Multicolour Printing
For multicolour designs,
flexo printing or offset printing is generally
the most cost-effective option.
•
Please note that the fabric must be printed
before the bag is manufactured.
•
Flexo printing becomes especially cost-effective
for large production volumes.
•
Advantages of Flexo Printing
Extremely high printing speeds
Ideal for long
and large print runs
Durable plates suitable
for repeat orders
Disadvantages of Flexo Printing
Printing plates are relatively expensive
compared to other methods.
Plate changes and version updates
can be time-consuming and costly.
Branding Laminated Non-Woven and rPET...
•Print designs can be as elaborate as you
need them to be including Photographs.
•
Laminated non-woven and rPET BOPP materials feature a smooth,
protective film layer that allows for high-quality, full-colour printing.
•
Designs are typically applied using rotogravure or flexographic printing,
resulting in sharp detail, rich colours, and excellent durability.
•
The laminated surface enhances water resistance,
improves scratch resistance, and helps
protect the print during repeated use.
•
This makes laminated non-woven and rPET BOPP products
especially suitable for branding, retail, promotional, and event applications
where visual impact and longevity are important.
•
Printing WPP (Woven Polypropylene)
Bags and Bulk Bags
continue reading...
•
Woven Polypropylene & Bulk Bag Printing
Woven polypropylene (PP) is a strong,
durable material commonly used for bulk bags,
sandbags, and industrial packaging.
•
The fabric is made by weaving PP strips into a tight, flexible structure,
giving it excellent tensile strength and resistance to tearing.
•
Its lightweight nature, combined with high load capacity,
makes it ideal for transporting and storing large
quantities of materials like
grains, minerals, and chemicals.
•
Printing on •Woven PP, especially •Bulk bags,
requires techniques that can handle the textured surface and large format.
•
The most common methods include flexographic printing,
which uses flexible plates to apply ink evenly across the woven fabric,
Flexo printing is the preferred printing methos,
because it is efficient for long runs and produces
lasting, detailed and
consistent results.
•
Print designs can be as elaborate as you
need them to be including Photographs.
•
While Lamination is not necessary,
Laminated WPP, Woven Polypropylne, BOPP
(printed film, that gets bonded with WPP)
feature a smooth,
protective film layer that allows for
high-quality, full-colour printing and
further strengthens the bags,
creates a water resistane barrier,
improves scratch resistance, and
helps protect the print during repeated use.
•
Designs are typically applied using rotogravure or flexographic printing,
resulting in sharp detail, rich colours, and excellent durability.
•
While screen printing, which is simpler and cheaper,
can be applied, there are draw backs:
•
Screen-prints rub off over time,
unless a special film (undercoat) is applied.
•
On small runs, this works out to be
the most cost effective print method,
despite the hi-tech undercoat.
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est 2006