Painting instrument applying fluid medium to substrate

摘要

The tip of the painting brush is made of Alaun crystal, notably a potassium aluminium sulfate or simply aluminium sulfate with metal inclusion and the tip (13) is connected to a fluid accumulator or storage (15) ensuring constant flow of medium preferably using a capillary, felt or fibre accumulator. The connection ensures that a medium is applied all round the tip crystal and the accumulator comprises a radially elastic sheath (14) which also holds the crystal firmly to the brush tip using an annular spring for tension. The crystal is secured to the tip by a conical screw join. The tensile spring should be grooved or fitted to the capillaries on the side facing the crystal giving a helical path for the medium. The medium should partly dissolve the crystal and contains writing ink and liquid poster colour. The brush tip can be used to apply medium to optional substrates, to include cosmetic purposes.