PKSC 4300 Test 3 - VIDEO Lectures
1. liquid, extrusion, vacuum: What are the 3 coating types?
2. Extrusion: Which coat type is liquid often mistaken for?
3. molten solid: Extrusion coating is associated with...
4. low viscosity liquid: Liquid coating is associated with...
5. T: T/F: All liquid coaters have methods to apply the coating and to meter the coating
6. compatibility between the surface & coating and correct viscosity: What is required
to achieve a liquid coating?
7. surface tension: Coating must be at or below the substrate's critical in order to wet
8. Tape test: What is a test that can be used to determine compatibility between the coating and the surface?
9. viscosity: resistance to flow
10. solution, emulsion, suspension: Types of liquid coating that requires dry time
1/6
,11. solution coating: coating is chemically dissolved by solvents
12. emulsion coating: components held in solution by surfactants (ex. paint)
13. suspension coating: components dispersed, but not dissolved (ex. snowglobe)
14. % solid, viscosity: Higher = Higher
15. viscosity, % solid: Higher does not mean higher
16. cup efflux time: How is viscosity measured?
17. simple, easy to use, and resists vibration: Why do we use cup efflux time to measure viscosity
even though is a poor way to measure viscosity and % solid?
18. requires drying and doesn't require drying: What are the two broad categories of liquid
coating?
19. B. equal: Coating that is sitting on the web has a velocity that is relative to the web.
A. larger
B. equal
2/6
, C. smaller
D. equal to 0
D. not enough information
20. Decrease in Rubber bulk modulus
Increase in roll radius
Increase in roll pressure
Increase in ink viscosity
3/6
1. liquid, extrusion, vacuum: What are the 3 coating types?
2. Extrusion: Which coat type is liquid often mistaken for?
3. molten solid: Extrusion coating is associated with...
4. low viscosity liquid: Liquid coating is associated with...
5. T: T/F: All liquid coaters have methods to apply the coating and to meter the coating
6. compatibility between the surface & coating and correct viscosity: What is required
to achieve a liquid coating?
7. surface tension: Coating must be at or below the substrate's critical in order to wet
8. Tape test: What is a test that can be used to determine compatibility between the coating and the surface?
9. viscosity: resistance to flow
10. solution, emulsion, suspension: Types of liquid coating that requires dry time
1/6
,11. solution coating: coating is chemically dissolved by solvents
12. emulsion coating: components held in solution by surfactants (ex. paint)
13. suspension coating: components dispersed, but not dissolved (ex. snowglobe)
14. % solid, viscosity: Higher = Higher
15. viscosity, % solid: Higher does not mean higher
16. cup efflux time: How is viscosity measured?
17. simple, easy to use, and resists vibration: Why do we use cup efflux time to measure viscosity
even though is a poor way to measure viscosity and % solid?
18. requires drying and doesn't require drying: What are the two broad categories of liquid
coating?
19. B. equal: Coating that is sitting on the web has a velocity that is relative to the web.
A. larger
B. equal
2/6
, C. smaller
D. equal to 0
D. not enough information
20. Decrease in Rubber bulk modulus
Increase in roll radius
Increase in roll pressure
Increase in ink viscosity
3/6
