| abstract |
Provided is a surface-treated powder wherein the surface of a powder comprising a silicone resin and/or an organic powder (at least one selected from among PMMA, nylon, polystyrene, cellulose, a silicone elestomer powder, a silicone rubber powder, benzoguanamine, a styrene-divinylbenzene pinhole polymer, ethylene tetrafluoride, a polyethylene powder, a polypropylene powder, a polyurethane powder, a silk powder, an organic pigment and a composite comprising one or more of these materials and a metal oxide and/or a metal hydroxide) is hydrophylized with a hydrophilizing agent comprising a water-soluble polyoxyalkylene glycol derivative. |