Exam 1

Question 1

Papermaking Process

Answer 1

free fibers in water, deposit on grid, remove water

Question 2

Pulping process machines

Answer 2

wood = digester , recycled = hydrapulper

Question 3

Paper converted in North America is typically made from . . .

Answer 3

Cellulose Fiber derived from wood

Question 4

two major classifications of trees

Answer 4

softwoods and hardwoods (common to use a mixture)

Question 5

______________ is the most important characteristic in papermaking

Answer 5

Fiber Length (longer the fibers, the stronger the paper)

Question 6

Shorter fibers yield . . .

Answer 6

paper with a smoother surface and uniform density characteristics (have reduced physical strength properties)

Question 7

Cellulose Fiber separation techniques

Answer 7

Mechanical Abrade (Wood Cutting) & Chemical Processing

Question 8

The Paper Mill will adjust the _____________ to optimize the papers performance for specific applications

Answer 8

level of refining

Question 9

Fourdrinier Paper Machine Process

Answer 9

Forming, Pressing, Drying & Finishing

Question 10

Calendering

Answer 10

Compress-Denser / Smooth out the paper surface

Question 11

Surface Coatings

Answer 11

Starch, Clay, Calcium carbonate and Titanium dioxide

Question 12

Paper Mill Variables

Answer 12

-No two paper mills will product an identical paper.
-Paper can have slight tolerance difference levels from run to run

Question 13

Fiber Orientation

Answer 13

Direction in which the Fibers lie

Question 14

Formulation

Answer 14

Laydown of the Fibers

Question 15

Physical Characteristics that are Directional

Answer 15

Stiffness, Tear, Tensile, Stretch, Cutting, Scoring & Folding

Question 16

Relative Humidity (paper is hydroscopic) decreases

Answer 16

Burst, Tensile, Fold, Stiffness

Question 17

Paperboard Brightness

Answer 17

a measure of how the paper’s surface reflects light

Question 18

Recycled Folding Carton Substrates

Answer 18

Single White lined (SWL), Double White Lined (DWL), Coated Recycled Board (CRB) and Clay Coated Newsback(CCNB), Special Bending News (SBN), Kraftback

Question 19

Non-Recycled Folding Carton Substrates

Answer 19

Solid Bleached Sulfate (SBS), Thermal Mechanical Pulp (TMP), Solid Unbleached Sulfate (SUS)

Question 20

Paperboard Tests

Answer 20

Caliper, Basis Weight, Apparent Density, Taber Stiffness, Moisture, Brightness, Tensile, Tear, Viscoelasticity, Mullen, Curl, Smoothness, Glue-ability

Question 21

Folding Carton design categories

Answer 21

tube, tray, multi-pack, specialty

Question 22

Dimensions are always expressed

Answer 22

L (length) x W (width) x D (depth)

Question 23

Grain directions of the paperboard is important for:

Answer 23

integrity, compression, & Production Considerations

Question 24

Four Primary Printing Process:

Answer 24

Lithography, Flexography, Gravure, Digital

Question 25

Additional Printing Processes

Answer 25

Hot Stamping & Cold Foil

Question 26

Offset Lithography Theory

Answer 26

oil and water don’t mix

Question 27

Offset - Lithography steps

Answer 27

individual separations are repeated on the plate (more print positions)

Question 28

Key to Digital Printing

Answer 28

no plates to purchase on a digital press, and carton graphics are ready to print almost immediately

Question 29

Ink Jet Printing advantages

Answer 29

-produce high quality, short run folding carton packaging
-run at faster speeds (five times faster than toner-based systems)

Question 30

Die Cutting

Answer 30

process that turns printed paperboard sheets into cartons

Question 31

layout of the folding carton, _________ & __________ plays important role in _________

Answer 31

scores & scrap, efficient

Question 32

Die cutters size

Answer 32

40” to 63”

Question 33

Storage Conditions

Answer 33

Temperature - 50°F to 80°F
Relative Humidity - 50% to 60%