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The patent US 6,840,692 B2 describes a method and apparatus for creating nibs and ink reservoirs for writing and marking instruments using melt blown bicomponent fibers. These fibers consist of a polyethylene terephthalate sheath and a nylon 6,6 core, providing improved drainback, solvent resistance, and robustness compared to traditional materials. The invention aims to produce high-quality, cost-effective components for various writing instruments, including roller ball pens and felt-tip markers.

Author

saqr78692

Language

EN