Kureha Kagaku Kogyo Kabushiki Kaisha

Tohshichi Kitago

Naohiro Murayama

Masayuki Funabashi

Masakazu Takaiwa

Seishiyo Kumagai

Masaharu Fujita

A laminate of layers of dissimilar fibrous substances having an electrophoretic charge is produced by the electrodepositing technique in an apparatus comprising an inner electrode disposed horizontally and adapted to accumulate the aforementioned fibrous substances on the surface thereof and a plurality of electrodes of the opposite sign and as many electrodepositing zones for accommodating aqueous suspensions of the aforementioned fibrous substances both disposed horizontally and coaxially in a spaced relationship. The production of the laminate is effected by a method which comprises the steps of feeding at least to adjacent electrodepositing zones the aforementioned aqueous suspensions of fibrous substances causing the fibrous substances to be oriented in different directions at least in the aforementioned adjacent electrodepositing zones, and applying an electric potential between the opposite electrodes thereby allowing the fibrous substances to be accumulated on the surface of the inner electrode.

Method and apparatus for manufacture of laminate of fibrous substance

Disclosed herein a method for producing shaped articles by electrodeposition utilizing the electrophoretic fibrous substance suspended in an aqueous medium, wherein by deflecting the direction of the flow of the above-mentioned aqueous suspension of the fibrous substance into at least two mutually different direction in the vicinity of the surface of electrode onto which the fibrous substance is deposited electrically in the course of electrodeposition, the thus obtained shaped articles are given a laminated layer-structure of the deposited fibrous substance, in which the direction of orientation of the fibrous substance in the layer is different from layer after layer resulting in a highly raised mechanical strength of the thus shaped articles, and a means for installing the device deflecting the direction of flow of the above-mentioned aqueous suspension into at least two mutually different directions.

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Iwaki, Japan

Tohshichi Kitago