How to Calculate Ink or Adhesive without knowing substrate

Film Length = 18,000 Meter
Film Width = 890 mm
Ink gsm = 1.5

How to Calculate Dry Ink for above Film ?

dry ink (kg) = Film Length x Film Width x Ink gsm / 1,000,000

Adhesive Basics Calculation

Adhesive Weight to Adhesive gsm

Adhesive consumed – 100 kg
Laminated Meter – 50,000
Coil/Film Size – 1200 mm

Adhesive gsm = (Adhesive Consumed x 1000000) / (Coil x Meter)

Adhesive gsm = (100 x 1000000) / (1200 x 50000) = 1.66 gsm

Calculation Pouch

How to do 3 Ply Job Calculation using 2 different Methods

Convert Pouch Dimensions in Meter
Pouch Height – 225mm / 0.225 M
Pouch Width (open) – 370 mm / 0.37 M
Pouch Area – 0.225 x 0.37

Printing Layer – 12µ Pet
Film Density – 1.4
gsm = 12 x 1.4 – 16.8

1 Pouch Weight in grams – 0.225 x .37 * 16.8 = 1.398 grams

Order Qty – 50,000 pcs / 50 Thousand

Total Printing Quantity – .225 x .37 x 16.8 x 50 = 69.93 (kg)


What is SKU ?

SKU (pronounced “skew”), short for Stock Keeping Unit.


What is the Laminate Structure for Salt Packing

Mostly Salt Pack, are made of very basic Packaging material.

Pet + PE

Pet Film Laminated with Poly, either Natural or White.

Pet – 12µ
Poly – various microns, depending upon SKU.

Basics Pouch

What is the Structure of Retort Pouch?

Retort Pouch, is a flexible pouch for low-acid foods that are thermally processed in a pressure vessel, often called a “retort.”

The pouch is made of layered polyester, aluminum foil, and polypropylene. Commercial sterilization occurs at temperatures greater than 212 °F (100 °C), typically 240 to 250 °F (115. to 121 °C). The retort packaging is shelf stable at room temperature.

Structure of Retort Pouch

  • Polyester (Pet) – printing layer /excellent printable
  • Aluminum Foil – barrier layer / protect from sun light, grease, oil
  • Nylon – 2nd barrier layer / high melting point, exceptional strength and toughness, and good oxygen barrier properties
  • Polypropylene – sealing layer / direct food contact, heat seal surface, flexibility & strength

Basics Pouch

Different Pouches in Flexible Packaging

In Flexible Packaging we come across various type of Pouches every name.

  • 3 Size Seal Pouch
  • Center Seal Pouch / Pillow Pouch
  • Zipper Pouch
  • Spout Pouch
  • Retort Pouch
  • 3D Pouch
  • Stand Up Pouch
  • Off Center Pouch
  • Side Gusset
  • Bottom Gusset
  • Vacuum pouch

We may come across Pouch based on Application as well

  • Oil Pouch / Side Seal
  • Coffee Beans Pouch / Side Gusset
  • Chips / Center Seal / Pillow
Basics Extrusion

What is a Tie Layer

Tie Layers help adhere polar (EVOH, PA etc.) resins to non-polar (PE etc.) resins in single-step co-extrusion process.

Basics Film

What is EVOH Barrier Film

Ethylene-vinyl alcohol co-polymer or EVOH is a flexible, crystal clear, and glossy thermoplastic co-polymer with excellent flex-crack resistance, and very high resistance to hydrocarbons, oils and organic solvents.

It also has some of the best barrier properties to gases such as oxygen, nitrogen, and carbon dioxide making it especially suited for packaging of food, drugs, cosmetics, and other perishable or delicate products to extend shelf life.

When compared to other common films, EVOH is considered to have superior barrier properties. 

However, when exposed to moisture, EVOH loses its good gas barrier properties. For this reason, EVOH is often used in a multi-layer co-extruded film structure with materials such as HDPE, PP and PET, all of which have superior moisture barrier properties.

Basics Polymers

What is Polymer resin Polarity

A polymer is considered polar if the it’s charge can be measured as positive or negative. 

If a polymer has no charge, we say it is non-polar. 

Some examples of polar plastics are PA, PC, PMMA, and ABS.
The most common non-polar plastics are PP, PE, SEBS, PS and PTFE.