Writing article whose writing tip includes a drying retardant and process for the manufacture of such a tip
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United States of America Patent
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Nov 11, 2003
Grant Date -
Jun 12, 2003
app pub date -
Oct 3, 2002
filing date -
Mar 2, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention concerns a writing implement (1) comprising ink (5) in a fibrous or non-fibrous reservoir, a retarding agent soluble or dispersible in the ink and a nib (7) for transferring ink (5) from the reservoir to the writing medium and a method for making such a nib (7). The invention is characterised in that a retarding agent is included in the writing nib (7) and is adapted to be carried by the ink (5) when it is transferred into said nib (7). The inventive method consists in impregnating an already machined writing nib with a solution containing a specific amount of a retarding agent, drying the impregnated writing nib, without stirring, by heating at a temperature less than 60.degree. C.
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