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Dry Powder Deposition
Solvent-less electrostatic powder development technologies as
utilized in the digital reprographic industry are perfectly suited
to controllably deposit, coat, meter, dispense dry powder onto small
and large surfaces, both flat and three dimensional. Many billions
of dollars of R&D investments have been made over the last 50 years,
specifically directed at dry powder development for the
electrophotographic and electrostatic imaging applications.
The powder materials can be almost anything, conductive or
non-conductive material, magnetic or non-magnetic material, from 5
to 100 microns in size. However, it is imperative that the
properties of the dry powder material be matched to the right dry
powder electrostatic deposition technology, and there are hundreds
of variants of such. The good news is that TPR is uniquely
positioned as the definitive independent expert in all electrostatic
dry powder development technologies as used in the digital printing
industry.
All electrostatic development technologies are potentially
suitable for integration into your unique powder deposition
application. The specific selection of alternatives will depend upon
the details of your application requirements. The available
technologies include:
- Single Component Development (SCD) and Dual Component
Development (DCD)
- Contact and Non-contact Development
- Inductive and Tribo-active Charging
- Magnetic and Non-magnetic powders
- Conductive and Non-conductive powders and substrates
Torrey Pines Research understands how critical it is to match the
properties of the powder to the substrate to the electrostatic
deposition system hardware. With TPR's
extensive experience in the digital reprographics industry, TPR is
able to select from a smorgasbord of hardware implementation
examples suitable for quickly prototyping your specific application.
Typical application requirements for dry powder deposition
applications include the following:
- Dry powder materials
- From ~ 5 to 100 microns in size
- Solvent-less process
- High area coverage
- Large volumes of material
- Precise metering/thickness control Uniform coating
- Static (decorative) or variable information coating
- Contact or non-contact process
- Primarily for manufacturing
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