摘要:
The present invention provides an aqueous ink containing ≧3% silver particles having much improved adhesion. It has been found that the adhesion can be improved by adding an aqueous cationic dispersion of a styrene/acrylate copolymer, PEI (polyethyleneimine), or arabinogalactan as an additive to the ink. The advantage of using one of these materials to improve the adhesion of the silver ink is the stability of the ink is maintained and the resistivity goal is met when printed onto the specified media. In other words, this invention provides a silver ink with great adhesion properties while still able to meet the
摘要:
The present invention provides an aqueous ink containing ≧3% silver particles having much improved adhesion. It has been found that the adhesion can be improved by adding an aqueous cationic dispersion of a styrene/acrylate copolymer, PEI (polyethyleneimine), or arabinogalactan as an additive to the ink. The advantage of using one of these materials to improve the adhesion of the silver ink is the stability of the ink is maintained and the resistivity goal is met when printed onto the specified media. In other words, this invention provides a silver ink with great adhesion properties while still able to meet the
摘要:
Disclosed is an ejection device for an inkjet printer that includes an ejection chip having a substrate and at least one fluid ejecting element. The ejection device further includes a fluidic structure configured over the ejection chip. The fluidic structure includes a nozzle plate composed of an organic material and includes a plurality of nozzles. The fluidic structure further includes a flow feature layer configured in between the ejection chip and the nozzle plate. The flow feature layer is composed of an organic material and includes a plurality of flow features. Furthermore, the fluidic structure includes a liner layer encapsulating the nozzle plate. The liner layer further at least partially encapsulates each flow feature of the plurality of flow features. The liner layer is composed of an inorganic material. Further disclosed is a method for fabricating the ejection device.
摘要:
The present invention provides an aqueous ink containing ≧3% silver particles having improved jetting performance which can be used reliably for printing of silver traces to obtain desired conductivity on printed media. The humectant (cosolvent) type/loading and surfactant type/loading described herein prevents nozzle drop outs or clogs for a long period of time without an extensive maintenance which is normally required for high solid inks. In a preferred embodiment, the present invention provides silver ink formulation containing humectant mixture of 5-15% 1,2-propanediol and 5-15% of glycol ethers compound with the following structure: R—[OCH2CH2]n—OH wherein R is a C1-C4 alkyl group and n is 1 to 3. A preferred surfactant is ethoxylated 2,4,7,9-tetramethyl 5 decyn-4,7-diol.