Basics Calculation Ink

How to calculate ink required for printing layer ?

Liquid Ink = 4 times of dry ink. Assuming 25% solid content in liquid ink.

Printing Layer – Pet

Film Density – 1.4

Film Micron – 12

Film gsm – 16.8

Job Sample Ink gsm – 1.2

Printing Layer Quantity – 300 kg

Dry ink required = (ink gsm x printing Quantity)/printing Layer gsm

= (1.2 x 300) / 16.8

= 21.42 (dry ink)

Liquid Ink = 4 times x dry ink (solid content of liquid Ink 25%)

= 4 x 21.42 = 85.68 kg (Liquid ink)


What is PET?

Density 1.4

Polyester film is a high-performance, crystal clear thermoplastic made from Polyethylene Terephthalate (PET) resin.

In comparison with other common plastic films, PET film has high tensile strength, excellent dimensional stability, low moisture absorption, and good retention of physical properties over a fairly wide temperature range.

It also has superior UV resistance and excellent electrical properties, and good optical clarity. Because of its higher price relative to PVC, PE, and PP film, it is generally considered a specialty film.

PET Film – 150°C (302°F) and as cold as -70°C (-94°F)


  • higher tensile strength
  • excellent dimensional stability
  • low moisture absorption
  • good retention of physical properties over a fairly wide temperature range
  • superior UV resistance
  • excellent electrical properties
  • good optical clarity
  • high gloss
  • good gas barrier
  • moderate moisture barrier


  • aroma barrier film (e.g. coffee and tobacco packaging)
  • release films
  • microwave
  • printed films
  • medical packaging
  • plastic wrap
  • tape backing
  • plastic cards
  • protective coatings such as solar
  • safety window films
  • transformer insulation films
  • flexible printed circuits