Packaging and Label Design Packaging Materials and Substrates

Question 1

What does 'OTR' stand for in flexible packaging?

Accepted Answer

Oxygen Transmission Rate

Answer

Outer Tear Resistance

Answer

Opacity and Transparency Rating

Answer

Organic Treatment Required

Question 2

What is the main advantage of HDPE (High-Density Polyethylene) for packaging?

Accepted Answer

High stiffness, chemical resistance, and recyclability making it ideal for bottles and containers

Answer

Highest clarity among polyethylene resins

Answer

Flexibility for use in thin films

Answer

Highest barrier properties among plastics

Question 3

What is a 'coextruded' film in flexible packaging?

Accepted Answer

A film made of multiple polymer layers simultaneously extruded together for combined functional properties

Answer

A film stretched in two directions for clarity

Answer

A film printed on both sides

Answer

A film with embedded barrier coating

Question 4

What is 'SBS' board in packaging?

Accepted Answer

Solid Bleached Sulfate — a premium white paperboard used for cosmetics, food service, and folding cartons

Answer

Synthetic Barrier Substrate

Answer

Stretched Biaxially Sheet

Answer

Single Board Structure

Question 5

What is 'MVTR' (or WVTR) in packaging specifications?

Accepted Answer

Moisture Vapor Transmission Rate — measures how much water vapor passes through a material

Answer

Maximum Vacuum Temperature Range

Answer

Material Verification Test Result

Answer

Multi-layer Vapor Transmission Ratio

Question 6

Which substrate is typically used for pressure-sensitive labels on glass bottles that must survive refrigeration and condensation?

Accepted Answer

Biaxially Oriented Polypropylene (BOPP) film

Answer

Paper with water-based adhesive

Answer

Polyethylene film

Answer

Cast polypropylene