Folding Carton Substrate Grades

1. Folding Carton Substrate Grades
redimark.com
Grade
SBS
Solid Bleach
Sulphate
CUK
Coated
Unbleached Kraft
CRB
Coated Recycled
Board
UKB
Uncoated Kraft
Boxboard
Fiber
Virgin bleached
hardwood, coated on 1
or 2 sides
90% unbleached virgin
pine, 10% hardwood
kraft fiber, coated one
side
100% recycled fiber,
bleached top, many (5-
9) plies, coated one
side
Approximately 85%
virgin pine, 15%
hardwood kraft fiber,
uncoated
Appearance Clean white Natural back side Gray back side
Natural, earthtone
appearance.
Print Quality
Very smooth surface,
high printability by
offset, flexo and gravure
Smooth surface, good
printing by offset, flexo
and gravure
Acceptable surface,
good printing by flexo
and offset
Less smooth, but
reasonable printing by
offset and flexo
Density 1X 1X 1.03X 0.73X
Strength Moderate strength Highest strength Acceptable strength High strength
Costs (approx.) 1.2X 1X 0.8X 0.8X
Sustainability
Renewable resource,
coated fiber
Renewable resource,
up to 17% total recycled
content, certified fiber
Renewable resource,
100% recycled content
Renewable resource,
reduced weight,
certified fiber
Common Applications
Personal care, medical,
pharmaceutical,
confectionary, media,
tobacco
Frozen foods, dry
foods, beverage, multi-
packs, automotive,
electronics, sporting
goods, fiber frames
Multi-purpose, setup
boxes, breakfast cereal,
dry foods, toothpaste,
snack crackers, facial
tissue, pancake mix,
powdered laundry
Institutional food
packaging, lawn &
garden, hardware,
sporting goods