- Rubber tapping
Rubber tapping is the process by which
rubberis gathered. An incisionis made in the bark of a rubber tree, which cuts through the latexvessels that flow between the bark and the cambium. The latex then drips into a vessel.
This industry is prevalent in areas of
tropical rainforest, such as Brazilin the Roraimaarea or Malaysiaand generally grows within a band 10° north or south of the equator, which offers optimum growing conditions. It is less destructive to the environment and rainforestand provides a renewable source of wood which can be used within the furniture industry. Large scale plantations operate on a 20 - 25 year planting cycle to optimise the latex yield.
Each night a rubber tapper must remove a thin layer of bark along a downward half spiral on the tree trunk. If done carefully and with skill, this tapping panel will yield
latexfor up to 5 years. Then the opposite side will be tapped allowing this side to heal over. The spiral allows the latex to run down to a collecting cup. The work is done at night so the latex will drip longer before coagulating and sealing the cut.
Depending on the final product, additional chemicals can be added to the latex cup in order to preserve the latex for longer. Ammonia solution helps prevent natural coagulation and allows the latex to remain in its liquid state. This form of latex is used as the raw material for latex concentrate, which is used for dipped rubber products or for the manufacture of Ribbed Smoke Sheet grades.
Naturally coagulated latex, sometimes referred to as cup lump, is collected for processing into block rubbers, which are referred to as Technically Specified Rubbers (TSR).
For the rubber tappers to legally extract the latex, they must first buy land that contains rubber trees. Even on huge pieces of land there are usually very few of these trees, so the tapper must buy lots of unused trees.
* [http://sarawak-rubbertapper.tripod.com/process.htm The Rubber Tapping Process]
Wikimedia Foundation. 2010.
Look at other dictionaries:
rubber — rubber1 rubberless, adj. rubberlike, adj. /rub euhr/, n. 1. Also called India rubber, natural rubber, gum elastic, caoutchouc. a highly elastic solid substance, light cream or dark amber in color, polymerized by the drying and coagulation of the… … Universalium
Para rubber tree — Taxobox name = Rubber Tree image width = 200px image caption = Hevea brasiliensis regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Malpighiales familia = Euphorbiaceae subfamilia = Crotonoideae tribus = Micrandreae… … Wikipedia
Natural rubber — Rubber and India rubber redirect here. For other uses, see Rubber (disambiguation). This article is about the polymeric material natural rubber. For man made rubber materials, see Synthetic rubber. Latex being collected from a tapped rubber tree … Wikipedia
Firestone Tire and Rubber Company — Infobox Company company name = Bridgestone Firestone, LLC company company type = Subsidiary of Bridgestone foundation = 1900 (Akron, Ohio) location = Nashville, Tennessee United States key people = Mark A. Emkes, CEO industry = Manufacturing num… … Wikipedia
South Thailand insurgency — The southern provinces of Thailand showing the Malay Muslim majority areas Date November 7, 2004– on … Wikipedia
Chico Mendes — Born December 15, 1944(1944 12 15) Xapuri, Brazil Died December 22, 1988(1988 12 22) (aged 44) Xapuri, Brazil … Wikipedia
Sitiawan — (alternate spelling: Setiawan; origin: from Malay, a portmanteau of , meaning Loyal Friend ) is a region in the Manjung district of Perak, Malaysia.The region covers an area of 331.5 square kilometers (128 square miles) and as of year 2000, its… … Wikipedia
Chandi Town — Chandi (Town) (Thai: จันดี) (Chinese|曾理) is a sub district (Amphoe) in the Chawang district of Nakhon Si Thammarat Province, southern Thailand in the middle of the Malay Peninsula. Chandi is a medium town in Chawang district of Nakhon Si… … Wikipedia
Mengkuang Titi — Kampung Mengkuang Titi Village Motto: Maju, Mampan, Manfaat, Teguh dan Ternama ( Progressive, Enduring … Wikipedia
Raub — is both a town and a district in Pahang, Malaysia. The town is situated 110km from the Malaysian capital of Kuala Lumpur and 265km from Pahang s capital, Kuantan. Raub is one of the oldest towns in Pahang.About RaubIt is a historic gold mining… … Wikipedia