Electrostatic flocking method
AssigneeMicrofibres, Inc.
InventorWilliam F. Laird
Life of this patent
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Abstract
An AC electrostatic flocking method having a variable frequency alternating electrostatic field that optimizes flocked product characteristics and/or processing efficiency. The optimized frequency can be determined on-line or from a chart or computerized database containing pre-determined optimized frequencies. The optimized frequency varies depending upon the precursors used and the processing conditions and parameters. Multiple in-line flocking modules having alternating variable frequency electrostatic fields operating at different frequencies may be utilized.
Claims15
A method for applying flock fibers to a substrate comprising:
- moving the substrate relative to a supply of flock fibers;
- dispensing the flock fibers relative to the substrate;
- determining an optimum frequency of an alternating electrostatic field;
- and
- subjecting the dispensed flock fibers to an alternating electrostatic field having the determined optimum frequency to deposit the dispensed flock fibers into the substrate.
A method for applying flock fibers to a substrate comprising:
- moving the substrate relative to a supply of flock fibers;
- dispensing the flock fibers relative to the substrate;
- subjecting the dispensed flock fibers to an alternating electrostatic field having a first frequency to deposit the dispensed flock fibers into the substrate;
- and
- adjusting the frequency of the alternating electrostatic field to an optimum frequency.
A method of applying flock fibers to a substrate comprising:
- determining an optimum frequency of an alternating electrostatic field;
- positioning the substrate relative to a supply of flock;
- apply an alternating electrostatic field having the optimum frequency between the substrate and the supply of flock;
- and dispensing the flock relative to the substrate to deposit the dispensed flock into the substrate.
A method of applying flock to a substrate comprising:
- positioning the substrate relative to a first module for dispensing flock;
- dispensing flock from the first module relative to the substrate;
- subjecting the dispensed flock from the first module to an alternating current electrostatic field having a first optimum frequency to deposit the dispensed flock into the substrate;
- positioning the substrate relative to a second module for dispensing flock;
- dispensing flock from the second module relative to the substrate;
- and
- subjecting the dispensed flock from the second module to an alternating current electrostatic field having a second optimum frequency to deposit the dispensed flock into the substrate.
Dependencies are inferred from the claim text.