Rattan processing divided into several steps. Each step has a specific purpose. However, all of the steps taken in the processing of rattan are basically to improve the quality of the rattan product. Rattan is raw materials that use in the commercial industry, so rattan must be served in a good condition whether it becomes semi-finished products or finished products such as furniture and other handicrafts.
Here are the steps of rattan processing before becoming a piece of furniture:
Frying Process
Rattan that already harvested has a high water content inside. This condition will make rattan susceptible to get attacked by pest such as fungi. This process aims to less a water content of rattan and make rattan more resistance to fungi. How to fry rattan is rattan pieces tied into a bundle, then put into a container that has been prepared and filled with the mix of diesel fuel and coconut oil.
Scrubbing and Washing Process
The frying process is only to make rattan’s water content reduced. Rattan is not clean yet. It still has any stains on the surface of the rattan. Thus, the scrubbing process is needed. First, drain the rattan for a few minutes. After that, scrub the rattan well by using napkin or coconut fiber to erase the sap of the rattan skin. Then, wash the rattan in order to make the rattan look more bright and shiny.
Drying Process
In this process, especially for Manau rattan needs 22-65 days to dry. The rattan is dried under the direct sunlight. This process aims to make sure that the water content of the rattan reduced well. The water content of the rattan must be on around 15% – 19%.
Stripping and Polishing Process
Stripping process aims to remove the rattan skin and polished the rattan stem. This process will make the shape and the color of the rattan look similar.
Fumigation Process
Basically, this process is the process of rattan oxidation with sulfur (SO2 gas) in order to get a bright color of the rattan and the color itself is prevalent with glossy effect. This process takes around 12 hours or a half of day.
Preserving Process
Rattan preservation is the process of chemical or physical treatment of rattan which aims to increase the life of the rattan. Besides having a function to prevent or minimize rattan damage due to destructive organisms, it also makes the long-lasting use of the rattan. This process usually uses preservatives that are toxic to destructive organisms. They can be anti fungi and insect products.
Bending Process
This process often uses for a large diameter rattan in order to get a specific shape depends on the frame and its use. The first step of this process is the rattan must be softened with hot water vapor (also called steaming) in the cylindrical tube or steamer. This will make the rattan fiber soft and easy to be bent.
Finally, the rattan that has been processed can be modified as a piece of good furniture or handicrafts.