Brief Explanation of Non-Woven Polybags Manufacturing amd Printing Process along with Applications in Daily Life.

1. Non-Woven Shopping
Bags
BY
Muhammad Sohail Aunjam [18-NTU-6009]

2. Contents
 What Is A Non-Woven?
 Non-Woven PP Bags
 Raw Materials
 Manufacturing Process
 Features
 Applications

3. What Is A Non-Woven?
 Non‐woven fabric is an engineered fabric, manufactured by putting small
fibers together in the form of a sheet and then binding them either
through thermal bonding, mechanical bonding, adhesion, or by
interlocking them with serrated needles such that the inter‐fiber friction
results in a strong fabric.

4. Non-Woven Polybags
 Non-woven poly bags are liquid resistant and offered in variety of
patterns. These can be used for regular purpose and manufactured to
meet the requirements of the end user.

5. Raw Materials
 Mainly homo-polymer polypropylene is used as raw material for non-
woven polybags manufacturing. Polypropylene is used in different grades
for non-woven as;
→Staple fiber process ‐ 12 to 25 MFI
→Spun‐bonded process ‐ 20 to 35 MFI
→Melt blown process ‐ 450 to 1200 MFI

6. Manufacturing Process
 Non-Woven polybags are made through spun-bonding manufacturing
technique and thermal bonding is used to join the ends. Steps involved in
manufacturing are;
1) Extrusion & Spinning
2) Web Formation
3) Thermal Bonding
4) Non-Woven Fabric Roll
5) Bag Cutting & Sealing
6) Auto handle Sealing
7) Printing

7. Manufacturing Process [Fabric Manufacturing]
Process Flow Schematic Diagram

8. Manufacturing Process [Bag Making]
Bag Making Machine:
 The function of this bag making
machine is to cut the fabric in the
desired size after passing through the
rollers.
 Auto-handle sealing is also integrated
in latest machines.

9. Manufacturing Process [Bag Printing]
Bag Printing Machine:
 This is required to print designs on the
fabric roll / Bags depending upon the
final requirement. It can be general
prints or as per the demand of the
customer.

10. Features of Non-Woven PP Bags
 Eco-friendly
 Suitable for advertisements
 Anti-pull, anti-tear, strong and extensible
 Acid-resistant, alkali-resistant, non-poisonous and no harm to human body
 Good in ventilation
 Recycle, environmentally friendly material
 Water resistant and moisture proof

11. Applications
 Usually used for gift/clothes packaging and craftwork.
 Used as a token of gratitude at wedding ceremonies.
 Replacing leather and jute hand bags.
 Used for fertilizer and chemical packages.
 Replaced jute bags in rice packaging.
 Utilized as shopping bags with exceptional re-use potential.