Nippon Paper Industries Co., Ltd.

Moe Fukuoka

Shisei Goto

Toru Nakatani

Masatoshi Oishi

Koji Ninagawa

Hiroaki Noguchi

Ayaka Hasegawa

To provide a new inorganic particle composite fiber including a large amount of adhering inorganic particles, An inorganic particle composite fiber includes: fiber; and inorganic particles fixed to the fiber, the fiber being thread-like in shape, the inorganic particles being fixed to the fiber via an ionic polymer.

Inorganic particle composite fiber, method for manufacturing same, and molded article

The present invention aims to provide techniques for efficiently synthesizing inorganic microparticles. According to the present invention, inorganic carbonate microparticles can be synthesized by generating ultrafine bubbles containing carbonic acid gas by injecting a gas containing carbonic acid gas and a liquid into a reaction vessel through a nozzle to deposit an inorganic carbonate having an average primary particle size of 300 nm or less in the presence of the ultrafine bubbles.

Processes for preparing inorganic carbonates

The present invention aims to provide cellulose fibers covered by inorganic particles on the fiber surface. According to the present invention, complexes of a cellulose fiber and inorganic particles wherein 15% or more of the surface of the cellulose fiber is covered by the inorganic particles can be obtained.

Complexes of cellulose fibers and inorganic particles

The present invention provides a method for reducing web break caused in preparing, by continuous paper making, a fiber sheet containing a high content of functional inorganic substance. The composite fiber sheet manufacturing method includes: generating composite fibers composed of cellulosic fibers and inorganic particles by synthesizing the inorganic particles in slurry containing the cellulosic fibers; and continuously generating a sheet by supplying composite-fiber-containing slurry including the composite fibers to a continuous paper machine. In the composite fiber generating step, at least one of (i) slurry containing cellulosic fibers having a length of 1.2 mm to 2.0 mm in an amount of 16% or more in terms of length-weighted fiber length distribution (%) and (ii) slurry containing cellulosic fibers having a length of 1.2 mm to 3.2 mm in an amount of 30% or more in terms of length-weighted fiber length distribution (%) is used.

Method for manufacturing inorganic particle composite fiber sheet

The present invention aims to provide techniques for preparing complexes of magnesium carbonate particles and a fiber. The complexes of magnesium carbonate microparticles and a fiber can be synthesized efficiently by synthesizing the magnesium carbonate in a solution containing the fiber.

Complexes of magnesium carbonate microparticles and fibers as well as processes for preparing them

The present invention aims to provide techniques for preparing complexes of calcium phosphate particles and a fiber. According to the present invention, complexes of calcium phosphate particles and a fiber are provided. According to the present invention, calcium phosphate-fiber complexes in which titanium is retained can be further obtained.

Complexes of calcium phosphate microparticles and fibers as well as processes for preparing them

The present invention aims to provide techniques for preparing complexes of calcium carbonate particles having an average primary particle size of less than 1 &#x3bc;m and a fiber. Complexes of calcium carbonate microparticles having an average primary particle size of less than 1 &#x3bc;m and a fiber can be synthesized efficiently by synthesizing calcium carbonate in a solution bearing the fiber while injecting a liquid into a reaction vessel.

Complexes of calcium carbonate microparticles and fibers as well as processes for preparing them

The present invention aims to provide techniques for efficiently preparing calcium carbonate particles having an average primary particle size of less than 1 &#x3bc;m. Calcium carbonate microparticles having an average primary particle size of less than 1 &#x3bc;m can be synthesized efficiently by synthesizing calcium carbonate in the presence of cavitation bubbles.

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Tokyo, Japan

Moe Fukuoka