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Validation Items Validation Service
2015-03-10
Inkjet inks are manufactured in a variety of formulations, including aqueous or solvent based fluids, pigments and dyes. Cleanliness of the ink is of utmost importance to avoid plugging of the print head or nozzle, ensuring printer performance and longevity.
Manufacturers of pigment based inks are looking for effective filtration. These filters must remove oversized pigments, gels and other contaminants, while still allowing the desirable sized pigments to pass through the filter and remain in solution. ANOW can offer special filters that may satisfy these demands of inkjet inks filtration, keeping reliable retention of particulates.
Please check chemical compatibility when selecting filters for solvent based ink applications.
Separation Goals
● Remove oversized particulates and agglomerates while leaving desirable sized pigments
Application Requirements
● Filters must have low extractables, not to introduce foreigners.
● Filters must remove oversized particles while allowing desirable sized pigments remaining.
● Terminal filters must keep reliable retention of particulates for a long time.
● Filters must provide consistent high flow rates and be robust to satisfy mass manufacturing processes.
Recommendation
Filtration Step | Recommendation |
Clarification | LP |
Prefiltration | LPF/LGF |
Final filtration | LPF/LGF |
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