Vinalon

Vinalon ( Korean : Vinylon 비닐론 ) vinylal or Juche fiber called, is a synthetic fiber consisting of polyvinyl alcohol is prepared.

Anthracite and limestone are used as raw materials . Vinalon's production begins with the manufacture of carbide from coal and lime. Polyvinyl acetate is made by synthesizing vinyl acetate from carbide (to ethyne ) and then polyvinyl alcohol is extracted by melting polyvinyl acetate in methanol. The Vinalon fiber is obtained through the following additional steps.

Vinalon was developed in 1939 by the Korean scientist Ri Sŭng-ki and the Japanese scientists Ichiro Sakurada and H. Kawakami at the Takatsuki Chemical Research Institute , Osaka Prefecture in Japan . In 1954 production was started on a trial basis in North Korea , and in 1961 the large Vinalon plant “8. February “ in Hamhŭng . Today Vinalon is also produced at the Vinalon Sunch'ŏn plant. A department of the Academy of Sciences in Hamhŭng deals with Vinalon.

Vinalon is used for clothing, but also for ropes and as filling material. The fiber is resistant to heat and chemicals, but it is also stiff, shiny and difficult to dye. Vinalon is not produced outside of Korea.

Quote from Kim Il-sung on Vinalon:

“Vinalon is an excellent chemical fiber that we invented. Vinalon is more durable than cotton . The basic raw materials for Vinalon are limestone and anthracite, which our land is rich in. These extremely useful and valuable natural resources are really precious treasures for us. "

- Kim Il-sung : On the Struggle of the Korean People to Enforce the Juche Ideology , 1983

Web links

Eric Croddy: Vinalon, the DPRK, and Chemical Weapons Precursors (NTI)
Vinalon production goes up ( KCNA ) (May 26, 1998, not available on February 20, 2016)

literature

Intl. Business Publications: Korea North: Doing business for everyone guide. Intl. Business Publications, 2013, ISBN 1-4387-7247-5 , p. 130.

Individual evidence

^ Bernhard Schrader, Paul Rademacher: Short textbook of organic chemistry. 3rd edition, De Gruyter, Berlin 2009, ISBN 978-3-11-019447-0 , p. 194.
↑ Kim Il Sung: On the Struggle of the Korean People for the Implementation of the Juche Ideology. ( Memento of May 18, 2007 in the Internet Archive ) After a conversation with the delegation of the People's Revolutionary Alliance of America from Peru, June 20, July 1 and July 5, 1983 ( Pyongyang , Verlag für Fremdsprachige Literatur 1983; online version: KDVR. de ).

[1] Bernhard Schrader, Paul Rademacher: Short textbook of organic chemistry. 3rd edition, De Gruyter, Berlin 2009, ISBN 978-3-11-019447-0 , p. 194.

[2] Kim Il Sung: On the Struggle of the Korean People for the Implementation of the Juche Ideology. ( Memento of May 18, 2007 in the Internet Archive ) After a conversation with the delegation of the People's Revolutionary Alliance of America from Peru, June 20, July 1 and July 5, 1983 ( Pyongyang , Verlag für Fremdsprachige Literatur 1983; online version: KDVR. de ).