Method for preparing large-area structural coloration pattern by ink-jet printing
A technology of inkjet printing and structural color generation, applied in the directions of copying/marking method, printing, ink, etc., can solve the problems of high price and limited use of the second equipment, and achieve the effect of strong practicability and low cost
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Embodiment 1
[0029] Inkjet printing CdS ink to obtain large-area red structural color patterns.
[0030] First prepare monodisperse CdS colloidal microspheres, the specific preparation method is as follows:
[0031] Take by weighing 6g polyvinylpyrrolidone powder (PVP), add 150mL diethylene glycol, then add the cadmium nitrate and thiourea powder of equal amount of substance, the amount of substance of cadmium nitrate and thiourea is 15mmol, stir until all powders dissolve completely . The solution was heated to 160° C., kept for 5 hours, and then naturally cooled to room temperature. The product was centrifuged, washed with ethanol and water three times and dried.
[0032] Weigh a certain amount of monodisperse CdS microsphere powder and grind it fully, wherein the content of monodisperse colloidal microspheres is 12wt%, the content of ethylene glycol is 5wt%, the content of ethanol is 10wt%, and the content of glycerin is 5wt%. , the content of PVP is 2.7wt%, the content of tributyl ph...
Embodiment 2
[0035] Inkjet printing CdS ink to obtain large-area red structural color patterns.
[0036] First prepare monodisperse CdS colloidal microspheres, the specific preparation method is as follows:
[0037] Take by weighing 6g polyvinylpyrrolidone powder (PVP), add 150mL diethylene glycol, then add the cadmium nitrate and thiourea powder of equal amount of substance, the amount of substance of cadmium nitrate and thiourea is 20mmol, stir until all powders dissolve completely . The solution was heated to 162°C, kept for 6 hours, and then naturally cooled to room temperature. The product was centrifuged, washed with ethanol and water three times and dried.
[0038] Weigh a certain amount of monodisperse CdS microsphere powder and grind it fully, wherein the content of monodisperse colloidal microspheres is 15wt%, the content of ethylene glycol is 5wt%, the content of ethanol is 10wt%, and the content of glycerol is 5wt%. , the content of PVP is 3wt%, the content of tributyl phosph...
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