Low protein natural latex articles
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United States of America Patent
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Sep 14, 2004
Issued Date -
N/A
app pub date -
Aug 16, 2002
filing date -
Aug 16, 2002
priority date (Note) -
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Abstract
The present invention is directed to a process for producing a powder free natural latex article and the articles produced by the process. In one embodiment, the process of the present invention may be used to form a powder free natural latex glove which has very low levels of extractable protein without being subjected to a halogenation processes. The process includes forming a natural rubber article on a former and then, either before or after stripping the article from the former, contacting the article with a rinse solution comprising the ionic species of a disassociated metal salt. In one embodiment, the metal salt may be sodium chloride. Contact with the rinse solution may lower protein levels in the latex. When the article is stripped from the former prior to contact with the rinse solution, the rinse solution may also remove any residual powders from the glove in order to produce a powder free natural rubber article. The non-chlorinated product may have good gripping characteristics and an extended shelf life when compared to similar chlorinated products.
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