Osaka Gas Company Limited

Matsushita Electric Industrial Co., Ltd.

Mitsubishi Pencil Kabushiki Kaisha

Michio Saito

Toshiyuki Maeda

Narutoshi Kanazawa

Shinichiro Kobayashi

Masao Shimizu

Katsunori Kitazawa

Mitsuaki Yamada

Toshimitsu Kurumizawa

Toshihide Nakamura

Hiroaki Matsuyoshi

Toru Taniguchi

Yoji Nishimoto

An iron comprising a bottom member as an ironing face, which is provided with a plated metal film containing fluorine compound fine particles, so that the ironing face provides high surface hardness which shows less wear, good slidability and less generation of static electricity.

Iron bottom surface with plated metal film

Novel non-baked color pencil leads are here disclosed which can be obtained by forming a blend composition from a filler, a pigment, a binder and the like without using any wax, at least one of the pigment and the filler being all or partially covered with a fluorinated aromatic compound, kneading the blend composition with a solvent and/or a plasticizer, extruding the kneaded material, drying the extruded articles to remove the solvent and/or the plasticizer therefrom, and then impregnating the porous articles with an oil, a fat and/or a wax. The thus obtained non-baked color pencil leads are remarkably excellent in mechanical properties such as bending strength and pointed end strength, has a smooth writing performance, and permits the drawing of uniform lines. A high-temperature and short-time drying treatment is possible, which can remarkably decrease a manufacturing cost. The color pencil leads which can be erased with an eraser or the color pencil leads which cannot be erased with an eraser can be selectively prepared.

Non-baked color pencil leads and method for preparing same

Growing community of inventors

Senboku-gun, Japan

Michio Saito