Terminologies

Question 1

Bubble process

Answer 1

Process with tubular dye to extrude a relatively thick-walled tube in a vertical direction

Question 2

Casting

Answer 2

Stretching films using a frame (tenter frame / stenter)

Question 3

Corona

Answer 3

Treatment required before gluing or printing

Question 4

Co-extrusion

Answer 4

Extrusion with resin to make heat-sealable films

Question 5

Coating

Answer 5

Applying coat to the films

Question 6

Layered film

Answer 6

Film consisting of 3, 5 or 7 layers of typically co-polymer with homo-polymer in the middle

Question 7

Metalizing

Answer 7

The process of depositing vapor metal (such as aluminum) on the film to give a reflective surface. Aluminium wires and boats are used as raw material in the metallizing process.

Question 8

Tensilizer

Answer 8

Used in TiNA, normally after primary slitting to increase tensile strength (reduces width)

Question 9

BoPET

Answer 9

Biaxially-oriented polyethylene terephthalate

Question 10

BoPLA

Answer 10

Biaxially interoriented polylactic acid film

Question 11

MST

Answer 11

Microscale thermophoresis
Measures temperature related intensity change (TRIC) of the fluorescent probe, which can be affected by binding events. and thermophoresis, the directed movement of particles in a microscopic temperature gradient.

Question 12

Types of Printing Technologies

Answer 12

RotoGravure Printing
Flexo Graphic Printing
Digital Printing

Question 13

WVTR

Answer 13

Water Vapor Transmission Rate (WVTR)
WVTR is measured in (g/m2/d):
Water Vapor Transmission Rate (WVTR) or Moisture Vapor Transmission Rate (MVTR) is the rate at which water vapor will permeate through solid material over a specific period of time.

Question 14

O2TR

Answer 14

Oxygen Transmission Rate (OTR) (cm/m2/d):is the measurement of the amount of oxygen gas that passes through a substance over a given time period.