14-01-2021 дата публикации
Номер: US20210007942A1
A waterproof and air-permeable moist dressing which moisturizes and enhances color for aftercare of fresh tattoo. Therefore, the waterproof and air-permeable moist dressing can provide professional and medical repair, protection, isolation, and absorption of wound exudates and tattoo inks after tattooing to improve the aesthetical beauty of the tattoo. 1. A method for additive manufacturing a 3D-printed article , comprising:(a) printing and depositing one or more layers of a slurry by using a 3D printer, wherein the slurry comprises a ceramic powder composition;(b) further injecting an oil around the one or more layers of slurry;(c) repeating steps (a) and (b) until a main body with desired geometric shape is obtained; and(d) sintering the main body by heating to obtain the 3D-printed article wherein the temperature of a printing carrier of the 3D printer is from 30 to 80° C.2. The method of claim 1 , wherein the slurry is a composition which comprises ceramic powder claim 1 , glass powder claim 1 , or metal powder.3. The method of claim 2 , wherein the ceramic powder comprises hydroxylapatite claim 2 , tricalcium phosphate claim 2 , high density alumina claim 2 , zirconia claim 2 , bioglass claim 2 , carbide ceramic materials claim 2 , nitride ceramic materials claim 2 , aluminum silicate claim 2 , boride ceramic materials or silicide ceramic materials.4. The method of claim 1 , wherein the oil comprises polyglycol claim 1 , silicone oil claim 1 , fluorinated oil claim 1 , phosphoric ester claim 1 , polyether claim 1 , paraffin claim 1 , dodecyl alcohol claim 1 , olive oil claim 1 , soybean oil claim 1 , hydrocarbon mineral oil claim 1 , liquid paraffin claim 1 , or synthetic hydrocarbon.5. The method of claim 1 , wherein the viscosity of the slurry ranges from 100 to 900 cP.6. The method of claim 1 , wherein the size of a nozzle of the 3D printer ranges from 19 to 30G.7. The method of claim 1 , wherein the printing speed of the 3D printer ranges from 0.1 to 5 cm/s ...
Подробнее