Characteristics and Properties

• What is the main source material for paper?

  Wood pulp
• Paper can be made from recycled material
• Paper is only used for packaging and drawing.

  False
• What are the two main characteristics of papers and boards?

  Density and transparency
• Density is the measure of how tightly a material is pressed together, or its compactness
• What is the equation for density?

  $\text{Density} =$$\frac{\text{Mass}}{\text{Volume}}$
• Match the type of paper with its transparency level:

  Tracing paper ↔️ Transparent

  Cartridge paper ↔️ Opaque
• Texture refers to how a paper feels
• What is laid paper characterized by?

  Ribbed appearance
• Match the working property with its description:

  Flexibility ↔️ Ability to bend without breaking

  Printability ↔️ Ability to accept a printed image

  Biodegradability ↔️ Ability to be broken down biologically
• What unit is used to convey the weight of paper?

  Grams per square metre
• A higher weight of paper indicates it is lighter.

  False
• Surface finish affects how smooth or rough the surface of the paper is.
• What are examples of surface finishes for paper?

  Embossing, varnishing, foil blocking
• Absorbency affects the quality of printed images on paper.