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Colored composition
| Details |
Inventors: Sato, Takeshi; Nishida, Atsushi;
Assignee: Toyo Ink Mfg. Co., Ltd. (Tokyo, JP)
Primary Examiner: Green; Anthony J.
Assistant Examiner:
Attorney, Agent or Firm: Greenblum & Bernstein, P.L.C.
A colored composition is disclosed that includes a pigment carrier, formed from a transparent resin, its precursor or a mixture thereof, and a halogenated phthalocyanine pigment that has been treated with a higher fatty acid. If required, this colored composition may also include a dye derivative with a basic group, and/or a dye derivative with an acidic group or a salt thereof. |
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DETAILED DESCRIPTION OF THE EMBODIMENTS As follows is a description of preferred embodiments of a colored composition of the present invention.
This colored composition comprises a pigment carrier, formed from a transparent resin, its precursor or a mixture thereof, and a halogenated phthalocyanine pigment that has been treated with a higher fatty acid (hereafter also referred to as simply the "treated pigment").
The treated pigment is preferably used in an amount of 30 to 70% by weight based on the weight of the nonvolatile fraction of the colored composition.
In addition, the colored composition preferably also comprises a dye derivative with a basic group, and/or a dye derivative with an acidic group or a salt thereof.
First is a detailed description of the treated pigment.
The quantity of the treated pigment is preferably within a range from 30 to 70% by weight, and even more preferably from 40 to 55% by weight, based on the weight of the nonvolatile fraction of the colored composition.
Higher fatty acid treatment of the halogenated phthalocyanine pigment refers to a treatment in which the surface of the pigment is coated with the higher fatty acid.
Simply mixing the higher fatty acid with the halogenated phthalocyanine pigment does not generate the desired improvement in the electrical properties and the like, but if the higher fatty acid is kneaded together with the halogenated phthalocyanine pigment, thereby coating the pigment surface with the higher fatty acid, then an improvement in the electrical properties and the like is achieved.
A halogenated phthalocyanine pigment is a pigment represented by a general formula (1) shown below, and specific examples include C.
I.
Pigment Green 7, 36, and 37.
##STR00001## (wherein, X.
sub.
1 to X.
sub.
16 each represent, independently, H, F, Cl, Br, or I, and at least one of the groups must represent a halogen atom.
Z (the central metal) represents an element belonging to one of group 4 through group 14 of the periodic table.
) Examples of the central metal Z of the halogenated phthalocyanine pigment include Cu, Al, Co, Ni, Ti, and Zn
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Manufacturing Materials 
