RECYCLED FIBRE
Quiz
Complete these exercises at your leasure and mail me with your score. Good Luck!
Which of the following is NOT an economic reasons for using waste paper
- Reduce UK balance of payments,
- Cheaper to refine
- Contains useful chemicals
- Reduces mill water usage
Which of the following is NOT a social reason for using waste paper?
- Conserves trees
- Reduces land fill
- Removes inks
- Creates employment
The process responsible for the strength loss of recycled fibres is known as?
- Double bonding
- Hornification
- Delamination
- Bonding reversion
State the simplified form of the Page equation?
- 1/T = 1/Z - 1/B
- 1/T = 1/Z + 1/B
- 1/Z = 1/T + 1/B
- 1/T = 1/B - 1/Z
In recycled fibres, what property is responsible for the reduction of bond strength?
- Flexibility
- Fibre length
- Hydrogen bonding
- Fibre length to width ratio
Which strength property will first increase with number of recycles?
- Tensile
- Smoothness
- Density
- Tear
Give an examples of pernicious contraries
- Glue
- Nuts
- Staples
- Paperclips
Give an examples of non-pernicious contraries
- Polythene
- Latex
- Sand
- Plastic