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ITP 408 - Chapter III Paperboard Study Guide
Terms in this set (91)
True or false: paperboard manufacturing is a continuous process.
What is the consistency of paperboard when entering the machine?
What is the consistency of paperboard when exiting the machine?
3) drying and size pressing
4) precoat calendering
6) dry calendering
7) winding and slitting
What is the seven step sequence of operations for the Fourdrinier machine when producing paperboard?
Which step of paperboard manufacturing has the biggest impact on the properties of the finished product?
What is it called when fibers tend to align in the direction in which the slurry travels through the papermaking machine?
slurry or furnish
What are two words that describe the water-fiber mixture that enters the papermaking machine?
virgin vs. recycled fibers
What is furnish composition?
pressure and vacuum suction
Fill in the blanks: a combination of blank and blank is used to reduce water content form 80% to 40-60% in the pressing process of the papermaking machine.
What is the largest section of the papermaking machine?
to remove water through evaporation
What is the purpose of the drying and size pressing processes?
60% to 5%
Water content in the drying and size pressing section goes from what percentage to what percentage?
applies starch or sizing resins on paperboard surface
What does a size press do?
1) assist in bonding of fibers to sheet surface
2) aid in water holdout (for subsequent coating and printing processes)
What are the two purposes of size pressing?
Fill in the blanks: sizing aids the water holdout of the paperboard which means that it helps reduce the paper's tendency to blank blank.
True or false: sizing is conducted to help allow inks and paints remain on the surface of the paper.
What is it called when a starch solution is applied on a wet stack calender?
What is the step of paperboard making when pigments, binders, and additives are applied to enhance the appearance and surface characteristics of the paperboard?
pigments, binders, and additives
Fill in the blanks: coating is when a blend of blank, blank, and blank are applied to enhance the appearance and surface characteristics of the paperboard.
True or false: when multiple coating units are in use for the manufacturing of paperboard, each unit does not dry the coating before moving the paperboard onto the next unit.
Fill in the blank: coatings are blank based.
What is used as a vehicle to carry coatings as applied?
balde coater, rod coater, or air knife
What are the three types of devices used to apply coatings?
Each mechanism used to apply coatings yields different what?
Which type of coating mechanism fills in more valleys and less at peaks?
Which coating mechanism is used in SBS manufacturing?
Which coating mechanism is better for recycled and unbleached kraft?
Which coating mechanism results in some small impurities?
air knife coater
Which coating mechanism uses a thin jet of air?
air knife coating
Which coating mechanism is the most uniform coating?
air knife coater (blade coater is better)
Which coating mechanism can be used for recycled and kraft, but not necessarily as good to use as another method?
kaolin clay and titanium dioxide
What two pigments are used to achieve white paperboard?
styrene butadiene rubber, polyvinyl acetate, protein-based binders
What three binders can be used to bond pigments to each other and to fibers?
What is used to enhance the paperboard-making process by maintaining quality and stability?
What is a finishing step used to polish the sheet and control thickness?
What step improves the smoothness and increases the gloss of the finished sheet of paperboard?
hard nip vs. soft nip calendering
What are two types of dry calendering?
hard nip calendering
What type of calendering involves the paperboard web passing through a stack of calendering rolls made of polished steel?
soft nip calendering
What type of calendering involves the paperboard web passing between highly polished heated cylinder engaged against a resilient rubber roll?
100" to 300"
What is the width range of a paperboard reel?
What is the typical width of a commercial paperboard roll?
What unit of measure is used for paperboard thickness?
16pt to 28pt
What is the most common range of paperboard thickness?
1 to 4
Fourdrinier paperboard is usually how many plies?
SBS, CUK/CNK/SUS, CCNB, FBB, URB
List these paperboard grades from most to least expensive: CCNB, FBB, CUK/CNK/SUS, SBS, URB
SBS, CUK, CNK, SUS, CCNB are all produced using what machine?
Folding box board and uncoated recycled board are both produced using what machine?
solid bleached sulfate
What does SBS stand for?
What is the most popular paperboard grade in the United States?
What is the most expensive grade of paperboard?
SBS accounts for what percentage of the folding carton market?
coated unbleached kraft
What does CUK stand for?
CNK (clay natural kraft) or SUS (solid unbleached sulfate)
What two other acronyms are used for CUK
Which paperboard grade is considered to be superior in strength?
beverage cartons, frozen food packaging, pharmaceutical packaging
What are the three major markets for CUK?
uncoated recycled board
What does URB stand for?
True or false: URB is produced from 100% recovered paper.
What paperboard grade represents the single largest market for recovered paper in the US?
What is the least expensive paperboard grade?
shoeboxes, composite cans, set-up boxes
What are the three major market segments for URB?
coated recycled board
What does CRB stand for?
What is CRB usually coated with?
What is the largest category of paperboard grades that accounts for 40% of total folding carton market in the US?
True or false: CRB is an all bending grade, meaning it can be bent at a 180 degree angle without cracking.
clay coated news back
What does CCNB stand for?
corrugated and newspaper waste
What is CCNB made up of?
What is the most popular type of CRB?
- soap and laundry detergent packaging
- cookie and cracker packaging
- paper goods packaging
- cake mix packaging
- cereal boxes
- other dry food packaging
What is a major market segment for CRB?
- International paper
- Graphic Packaging International
Who are the four major paperboard industry players?
What is the processing technique wherein commercially thermally sterilized liquid products (typically food or pharmaceutical) are packaged into previously sterilized containers under sterile conditions to produce shelf-stable products that do not need refrigeration?
When and where was the first aseptic filling plant for milk?
What does FFS stand for?
Who became one of the leading suppliers of processing and packaging equipment for dairies?
Fill in the blank: materials and equipment are blank goods
paperboard, polyethylene, aluminum
Paperboard-based aseptic packages are typically a mix of what three materials?
gable top cartons
Refrigerated cartons are also known as what?
True or false: gable top cartons are shelf-stable therefore they do not need refrigeration.
paperboard and polyethylene
What two things are gable-top packages usually made up of?
True or false: gable-top packages include an aluminum layer.
The top seal of gable-top packages is formed using what method?
True or false: gable-top packages are designed to be tight but also be able to be peeled open.
Fill in the blank: both refrigerated and aseptic cartons are difficult to blank
hard to separate layers
Why are refrigerated and aseptic cartons difficult to recycle?
Containers made up of 12-24pt paperboard are usually shipped: formed or flat?
What are set-up boxes also known as?
What is a rigid container of laminated heavy-gage paperboard that cannot be flattened or folded for shipment to the packers?
Clay coating is usually applied to: blister packs or skin packs?
can have built-in graphics
What is the benefit of composite cans?
What is the most common practice used to manufacture composite cans?
liner, paperboard body, label, can ends
What four materials are used to produce composite cans?
True or false: paper is the most inexpensive packaging material
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