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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 [ 1 ] coated top surface in one or more layers (C1S) and often also a coating on the reverse side (C2S).
The Paper & Paperboard market size (2007) had a value of US$630.9 billion and a volume of 320.3 million metric tons. [5] Of that market 40.1% is European. About 50% of all produced paper is used for packaging, followed by printing and writing. [ 5 ]
Cardboard is a generic term for heavy paper-based products. The construction can range from a thick paper known as paperboard to corrugated fiberboard which is made of multiple plies of material. Natural cardboards can range from grey to light brown in color, depending on the specific product; dyes, pigments, printing, and coatings are available.
The substrate can be either made specifically for skin packaging, or converted from other paper stock, such as corrugated board. The specially made sheets Solid Bleached Sulfate (SBS) are porous, and allow the vacuum to flow directly through the paper. Most other stocks need to have the sheet perforated with pinholes to allow airflow.
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. [1]
Magic Slate (also known as Magic Slate paper saver) is a children's drawing toy. It was invented by R. A. Watkins in 1923 in the United States, and has remained in production for over seven decades. It was invented by R. A. Watkins in 1923 in the United States, and has remained in production for over seven decades.
5) Pulp or white recovered fiber 6) Back coating. White-lined chipboard (also referred to as WLC, GD, GT or UD) is a grade of paperboard typically made from layers of waste paper or recycled fibers. Most often it comes with two to three layers of coating on the top and one layer on the reverse side.
[4] [5] [6] Some of these medieval European accounts are still preserved in the library archives of the Vatican and Oxford University among many others. [7] Around 1450, German goldsmith Johannes Gutenberg invented the metal movable-type printing press, along with innovations in casting the type based on a matrix and hand mould.