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Natural fibre products Quiz 14

Theme: Natural Fibre Products NFP Quiz 14 Natural fibre products Quiz 14

Natural fibre products Quiz 14

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Question 1 of 10

1. Question
1. What are the main functions of binders in the coating process?
- A) To add color to the paper
- B) To increase the weight of the paper
- C) To bind pigment particles to the base paper and to each other, and to affect viscosity and water retention of the coating colour
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Question 2 of 10

2. Question
2. What is an ideal binder characterized by?
- A) High cost and low availability
- B) Poor mechanical and chemical durability
- C) Good binding power, water retention properties, and compatibility with other coating components
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Question 3 of 10

3. Question
3. What are the three types of binders based on their relative amounts in the coating?
- A) Main binders, co-binders, and sole binders
- B) Primary binders, secondary binders, and tertiary binders
- C) Natural binders, synthetic binders, and hybrid binders
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Question 4 of 10

4. Question
4. What is the main advantage of water-soluble binders over latexes that are not soluble in water?
- A) They are cheaper
- B) They give the coating layer better water retention and affect the rheological properties of the coating colours
- C) They are transparent
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Question 5 of 10

5. Question
5. What is the main purpose of a co-binder in a coating formulation?
- A) To add color to the coating
- B) To affect the rheology and water retention properties of the coating colour
- C) To increase the weight of the coating
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Question 6 of 10

6. Question
6. What is the main factor influencing the design of steam and condensate systems in paper machines?
- A) The machine speed and desired grammage-range
- B) The produced grade
- C) Machine speed
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Question 7 of 10

7. Question
7. 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 8 of 10

8. Question
8. 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
Correct

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Question 9 of 10

9. Question
9. What is the main advantage of using latex as a binder in the coating process?
- A) It is the cheapest binder available
- B) It provides good binding strength and print quality
- C) It is transparent
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Question 10 of 10

10. Question
10. What is the main disadvantage of using latex as a binder in the coating process?
- A) It is very expensive
- B) It has low brightness
- C) It can be destabilized by factors such as shear stress, chemicals, and biological attack
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This page has been updated 07.01.2026

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