Dispersing apparatus, dispersion method, and method of manufacturing dispersion
AssigneeTokyo Printing Ink Mfg. Co., Ltd.
InventorsKengo Imai, Toshinari Sekine, Tatsuya Nozaki, Kazuhiro Kabasawa
Life of this patent
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Abstract
There is provided a dispersion method of stirring a material to be dispersed in a cavity of a container, so as to create a laminar flow of the material by the stirring action, and a dispersing apparatus including a bottom member and a column-shaped rotating shaft that rotates in the cavity of the container, in which the rotating shaft is provided with two vanes attached thereto with a predetermined inclination, at positions circumferentially spaced by 180 degrees, and the vanes are located at non-overlapping positions in an axial direction.
Claims32
A dispersing apparatus, comprising a container having a cylindrically shaped cavity;
- a stirring member pivotally supported rotatably and coaxially with said cavity, and disposed inside said cavity;
- and a rotational driving unit that rotationally drives said stirring member in a predetermined direction, to thereby stir a material to be dispersed introduced into said cavity of said container, with said stirring member rotationally driven by said rotational driving unit;
- wherein said stirring member includes a column-shaped rotating shaft rotatably supported so as to be rotationally driven by said rotational driving unit, and a plurality of vanes provided at an even number of positions on an outer circumferential surface of said rotating shaft at regular intervals along a rotation direction;
- an odd-numbered one of said vanes counted along said rotation direction has an attack angle of a negative value and is located at a relatively lower position and an even-numbered one of said vanes has an attack angle of a positive value and is located at a relatively upper position, with an axial direction of said rotating shaft being taken as up-and-down direction;
- and
- −A/2≦B≦A/2 is satisfied, where A represents a vertical width of said vane and B represents a distance between an upper edge of said odd-numbered vane and a lower edge of said even-numbered vane.
A dispersing apparatus, comprising a container including a bottom member, a cylindrically shaped wall member, and a lid member;
- and a column-shaped rotating shaft that rotates inside said cavity of said container,
- said rotating shaft being attached to said bottom member or said lid member such that an axial center of said rotating shaft becomes parallel to said cylindrically shaped wall member;
- a pair of vanes attached to said rotating shaft with a predetermined inclination with respect to a rotation direction, and circumferentially spaced by 180 degrees and axially shifted from each other;
- wherein said vane on said bottom member side is inclined such that a rear portion with respect to a rotation direction is elevated from said rotation plane toward said lid member;
- said vane on said lid member side is inclined by the same angle as said vane on said bottom member side, such that a rear portion with respect to said rotation direction is lowered from said rotation plane away from said lid member;
- a vane closest to said bottom member and a vane closest to said lid member out of said pair of vanes thus attached are located close to said bottom member and to said lid member respectively, but not in contact therewith;
- and
- a laminar flow is created when a material to be dispersed is stirred in said cavity of said container.
A dispersing apparatus, comprising a container having a cylindrically shaped cavity;
- a stirring member pivotally supported rotatably and coaxially with said cavity, and disposed inside said cavity;
- and a rotational driving unit that rotationally drives said stirring member, to thereby stir a material to be dispersed introduced into said cavity of said container, with said stirring member rotationally driven by said rotational driving unit;
- wherein said stirring member causes, by rotating in a predetermined direction, said material to be dispersed to rotate generally parallel to an inner circumferential surface of said cavity and to reciprocate axially of said rotating shaft.
(canceled)
Dependencies are inferred from the claim text.