Lead refill for writing, drawing and/or painting devices and method for the production thereof
A polymer-bound lead refill for writing, drawing and/or painting devices, in particular for pencils or colored pencils, including at least one binding agent, at least one wax, at least one coloring agent and at least one filling agent. The lead refill including at least one surfactant.
1. A polymer-bonded colored pencil refill for writing, drawing and/or painting tools, comprising:
at least one polymeric binder, wherein the at least one polymeric binder is formed from at least one polymer from the group consisting of: polystyrene (PS); styrene/acrylonitrile (SAN); polylactide (PLA); styrene/butadiene (SB); polyolefins (PO); and acrylonitrile/butadiene/styrene (ABS);
at least one wax and/or oil fraction;
at least one colorant;
at least one filler; and
at least one cationic surfactant which is quaternary ammonium, wherein the quantity of the at least one surfactant is 0.2 to 3% by weight, wherein the refill comprises
12% to 30% by weight
polymeric binder
2% to 20% by weight
wax and/or oil
remainder
graphite or graphite and
carbon black as the
colorant and filler.
2. The refill as claimed in claim 1 , further comprising an anionic surfactant which is sodium alkyl sulphonate.
3. A method for manufacturing a polymer-bonded refill according to claim 1 , comprising the steps of extruding the refill.