Solid unbleached board, also known as SUB, is a grade of
paperboard
Paperboard is a thick paper-based material. While there is no rigid differentiation between paper and paperboard, paperboard is generally thicker (usually over 0.30 mm, 0.012 in, or 12 Inch#Equivalents, points) than paper and has certain superior ...
typically made of unbleached chemical pulp. Most often it comes with two to three layers of mineral or synthetic pigment
coating
A coating is a covering that is applied to the surface of an object, or substrate. The purpose of applying the coating may be decorative, functional, or both. Coatings may be applied as liquids, gases or solids e.g. powder coatings.
Paints ...
on the top and one layer on the reverse side. Recycled fibres are sometimes used to replace the unbleached chemical pulp.
The main end use for this type of board is for packaging of
frozen or
chilled food,
beverage
A drink or beverage is a liquid intended for human consumption. In addition to their basic function of satisfying thirst, drinks play important roles in human culture. Common types of drinks include plain drinking water, milk, juice, smoothie ...
carriers,
detergent
A detergent is a surfactant or a mixture of surfactants with Cleanliness, cleansing properties when in Concentration, dilute Solution (chemistry), solutions. There are a large variety of detergents. A common family is the alkylbenzene sulfonate ...
cereals
A cereal is a grass cultivated for its edible grain. Cereals are the world's largest crops, and are therefore staple foods. They include rice, wheat, rye, oats, barley, millet, and maize (Corn). Edible grains from other plant families, suc ...
,
shoes
A shoe is an item of footwear intended to protect and comfort the human foot. Though the human foot can adapt to varied terrains and climate conditions, it is vulnerable, and shoes provide protection. Form was originally tied to function, but ...
,
toys
A toy or plaything is an object that is used primarily to provide entertainment. Simple examples include toy blocks, board games, and dolls. Toys are often designed for use by children, although many are designed specifically for adults and ...
and others.
See also
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Folding boxboard
Folding boxboard, also referred to as FBB or by the DIN Standard 19303 codes of GC or UC, is a paperboard grade made up of multiple layers of chemical and mechanical pulp. This grade is made up of mechanical pulp in between two layers of chemical ...
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Solid bleached board
Solid bleached board (SBB) or solid bleached sulphate (SBS) is a virgin fibre grade of paperboard.
This grade is made purely from bleached chemical pulp and usually has a mineral or synthetic pigment coated top surface in one or more layers (C1 ...
*
White lined chipboard
Further reading
Antidumping DutyFaltkarton(in German)
An overview of paper and paper based food packaging materials: health safety and environmental concerns
References
Paperboard
Coated paper
Paper
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