Continuous process for indirect printing of polymeric films having texture
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United States of America Patent
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Jan 13, 2004
Grant Date -
Jun 26, 2003
app pub date -
Dec 21, 2001
filing date -
Dec 21, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Described is a method of indirect printing on a thermoplastic film having texture, wherein said method comprises: a) providing a heated thermoplastic melt; b) providing a tool having a molding portion that comprises a texture having a surface and a plurality of cavities in said surface, and that comprises a material having a surface energy sufficient to release ink; c) applying ink to said texture; d) substantially drying or curing said ink; e) contacting said thermoplastic melt with said molding portion having ink applied to it; f) forming a texture in said thermoplastic melt, wherein said texture comprises a plurality of protrusions and an area between said protrusions, that is the inverse of the texture of said molding surface; g) transferring said ink from said molding portion to said thermoplastic melt; h) quenching said thermoplastic melt to form a thermoplastic film; and i) removing said thermoplastic film from said molding portion.
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