Latex technology and applications need heating system after the printing system in order to
cure/dry the ink placed on the substrate and to fix it to obtain the desired durability. Moreover,
other printing technologies also need a heating system to instantly dry the ink after the printing
process in order to speed it up and achieve higher productivities.
Heating systems usually consist of a hot air chamber warmed thanks to some heaters and blown on
the substrate where the ink is placed.
To optimize power consumption of the heating systems it is fundamental to close and seal as much
as possible the hot chamber. Additionally, the chamber must be fully closed to avoid hot air and
unpleasant vapors scape from the printer to the outside and reach printer users.
On the other hand, in applications where printing begins close to the leading edge of the substrate,
some moving part or mechanism is necessary to temporary open the chamber and let the leading
edge leave the chamber without any crashes. As soon as the leading edge leave the chamber, curtain
must be closed again to not lose heating efficiency.
The following document describes a novel and very cost‐effective curtain based on solenoids instead
of motors for a semi‐automatic heating system.
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This work is licensed under a Creative Commons Attribution-Share Alike 4.0 License.
INC, HP, "SEMI-AUTOMATIC SOLENOID-BASED VAPOR CURTAIN FOR COST EFFECTIVE HEATING SYSTEM", Technical Disclosure Commons, (October 15, 2021)