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Natural fibre products Quiz 12

Theme: Natural Fibre Products NFP Quiz 12 Natural fibre products Quiz 12

Natural fibre products Quiz 12

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Question 1 of 10

1. Question
1. What is the main purpose of pigment coating in paper and board production?
- A) To increase the weight of the paper
- B) To improve the surface properties for printing and converting
- C) To make the paper waterproof
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Question 2 of 10

2. Question
2. What are the main components of a pigment coating formulation?
- A) Wood pulp, recycled paper, and additives
- B) Plastic, metal, glass, and rubber
- C) Pigments, binders, additives, and water
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Question 3 of 10

3. Question
3. What is the most important component of a pigment coating formulation?
- A) Binder
- B) Additive
- C) Pigment
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Question 4 of 10

4. Question
4. What is the typical particle size range for coating pigments?
- A) 0.5-1.5 μm
- B) 5-10 μm
- C) 10-20 μm
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Question 5 of 10

5. Question
5. What is the main advantage of using kaolin as a coating pigment?
- A) It is the cheapest pigment available
- B) It has a platy particle shape that improves gloss and print quality
- C) It is transparent
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Question 6 of 10

6. Question
6. What is the main disadvantage of using precipitated calcium carbonate (PCC) as a coating pigment?
- A) It is very expensive
- B) It has low brightness
- C) It is energy-intensive to produce due to the high energy required for lime burning
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Question 7 of 10

7. Question
7. What is the main purpose of a binder in a coating formulation?
- A) To add color to the coating
- B) To bind pigment particles to the base paper and to each other
- C) To increase the weight of the coating
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Question 8 of 10

8. Question
8. What is the typical amount of binder in a coating formulation?
- A) 5-20 wt% of the amount of dry pigment
- B) 50-70 wt% of the amount of dry pigment
- C) 80-90 wt% of the amount of dry pigment
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Question 9 of 10

9. Question
9. What is the main purpose of adding a thickener to a coating formulation?
- A) To increase the weight of the coating
- B) To modify the rheology and increase the water retention of the coating colour
- C) To add color to the coating
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Question 10 of 10

10. Question
10. What is the main purpose of water in a coating formulation?
- A) To make the coating colour easier to mix and apply
- B) To increase the weight of the coating
- C) To make the coating waterproof
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This page has been updated 07.01.2026

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