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US 2023/0314858 A1Published application
System with salt-based color adjustment of substrate
AssigneeBIC Violex Single Member S.A.
InventorNikolaos CHRYSANTHAKOPOULOS
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Abstract
In a first aspect, the present disclosure relates to a system comprising a writing instrument, wherein the writing instrument comprises a solution of one or more salts and a writing orifice. Furthermore, the system comprises a drawing substrate configured to change color based on the concentration of the one or more salts and/or water content, wherein the drawing substrate comprises cholesteric liquid-crystals.
Claims20
A system comprising:
- a writing instrument, wherein the writing instrument comprises a solution of one or more salts and a writing orifice;
- and
- a drawing substrate configured to change color based on the concentration of the one or more salts and/or water content,
- wherein the drawing substrate comprises cholesteric liquid-crystals.
1 more element
Dependencies are inferred from the claim text.