PE FILMS / POLYETHYLENE FILMS

What are Polyethylene Films?
Generally Polyethylene films can be extruded by two ways
1. Blown Films
2. Cast Films
Basically polyethylene films are a blend of different polymers in different layers according to demand of packing commodity.

To manufacture three layer blown films following Polymers are being used :

a. High Density Polyethylene
b. Low Density Polyethylene
c. Linear Low Density Polyethylene
d. High Molecular High Density Polyethylene

Click here to see the Applications of Three Layer Blown Films

High Density Polyethylene {HDPE}
- HDPE is being used to improve following properties of films :
    1. WVTR & OTR
    2. Stiffness

Low Density Polyethylene {LDPE}
- LDPE is being used to improve the following properties of films :
   1. Softness
   2. Bonding

Linear Low Density Polyethylene {LLDPE}
- Linear Low Density Polyethylene
  LLDPE is being used to improve the following properties of films :

   1. Bubble Stability
   2. Easy to Process with Master Batches
   3. Sealability.
    4. Elongation
    5. Puncture Resistance
    6. Dart Impact
    7. Seal Through Contamination

High Molecular High Density Polyethylene {HM-HDPE}
- HM-HDPE is being used to improve the following properties of films:
  HM-HDPE improves all properties mentioned in HDPE,
  but has better properties than HDPE. On the other hand HM- HDPE has some drawbacks also: -
    1. Plays Negative role in sealing
    2. Poor Elongation
    3. Allows Cracks to develop

APPLICATIONS OF THREE LAYER BLOWN FILMS :
» Hydrogenated Oil (Vanasapti Films)
» Edible Oil Films
» Milk & Milk Products
» Mineral Water · Shrink Films
» Surface Protection Films
» Explosives Packaging Films (Chub Films)
» Release Films
» Stretch / Cling Films
» Lamination Grade Films like Lube oil films, Shampoo, Coconut, Tea, Biscuit, Namkeen, Candies, Ketchup, Rice, Detergent, Pan Masala, Tobacco, Nitrogen Flushing etc.
» Hot Pressure Lamination Films