Light postal tubes are ideal for keeping the cost of your postage down while still providing protection for your rolled documents in the post.
Medium gauge postal tubes give that bit extra protection you sometimes need but with the trade off of a heavier postal tube and higher postal costs.
Heavy gauge postal tubes give the greatest protection but with the highest costs to postal charges. Coloured postal tubes are now available and are made of a lightweight durable plastic.
Postal tubes are available in A3, A2, A1, B2, B1 to cater for a wide range of product sizes.
Pine trees are the raw material used in the creation of postal tubes. The companies that make the cardboard usually own the land in which these trees are grown so they can harvest the trees and initiate the process of converting the trees into kraft paper. There are chemicals that are used to create a fibrous pulp from the wood chips of the trees. This is called the sulfate process. After the pulp is made, the remaining fibers are then placed into a paper machine that forms them into the large rolls of kraft paper through a process that presses, dries, and rolls the fibers. This is then turned into new postal tubes.
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Source: http://www.articlealley.com/article_1046929_15.html
Source: http://www.articlealley.com/article_1046929_15.html
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