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Resin circulates throughout a coniferous tree and a few others, and serves to seal damage to the tree. Harvesting pine resin dates back to Gallo-Roman times in Gascony . Tapping pines may either be done so as to sustain the life of the tree, or exhaustively in the years before the tree is cut down.
Three methods are used to collect rosin. Rosin exudates are collected from gashes in the bark of living pine trees. Alternatively (see below) rosin is extracted from stumps. Yet another source is pulp mills that use the Kraft process. Tall oil rosin is produced during the distillation of crude tall oil, a by-product of the kraft paper making ...
Between 3 and 4 kilograms of Pitch could be obtained from a single trunk in one year. So, in order for a Resin Worker to live modestly with his family, he had to extract resin from about 3000 trees. [3] The workdays usually began before sunrise with the commute to the work area in the pine forest, and Resin Workers would often work 10 to 12 hours.
Resin extraction – Process of collecting sap or resin from pine trees; Balsam of Peru – Type of tree balsam – used in food and drink for flavoring, in perfumes and toiletries for fragrance, and in medicine and pharmaceutical items. Mastic (plant resin) – Resin traditionally obtained from the mastic tree on the island of Chios
Turpentine (which is also called spirit of turpentine, oil of turpentine, terebenthine, terebenthene, terebinthine and, colloquially, turps) [2] is a fluid obtained by the distillation of resin harvested from living trees, mainly pines.
Using wood as a raw material, resinous pine wood (Kienholz) was turned into resin and pitch through a burning process. The burning of resin was sometimes strictly regulated in order to prevent the wanton damage of the forest. [citation needed] In the 19th century, larger and larger facilities were built to extract resin.
In the United States the pine tree Pinus palustris, known as the longleaf pine, once covered as much as 90,000,000 acres (360,000 km 2) but due to timber harvesting was reduced by between 95% and 97%. The trees grow very large (up to 150 feet), taking 100 to 150 years to mature and can live up to 500 years.
Tall oil, also called liquid rosin or tallol, is a viscous yellow-black odorous liquid obtained as a by-product of the kraft process of wood pulp manufacture when pulping mainly coniferous trees. [ 1 ] [ 2 ] The name originated as an anglicization of the Swedish tallolja ('pine oil'). [ 3 ]