摘要:
High quality .beta.-form copper phthalocyanine pigment printing ink is produced by the present method, this method reducing the large amount of time and labor required in the process of pigmentation of crude copper phthalocyanine and production of the pigment printing ink.To this end, the production method of printing ink according to the present invention is characterized by adding to crude copper phthalocyanine, 20-80 weight % of printing ink resin based on the amount of the crude copper phthalocyanine, dry-milling the mixture at 80-170.degree. C., and heating the ground material in printing ink solvent. The printing ink obtained contains copper phthalocyanine particles of .beta.-form crystals with an aspect ratio of 1-2.
摘要:
According to the present invention, a resin is added to crude copper phthalocyanine comprising an .alpha.-form and a .beta.-form crystals in combination and dry-milling is performed in a deoxygenated atmosphere, to provide copper phthalocyanine pigment composition of superior quality which reduces considerable expenditure of time and labor associated with the pigmentation process of crude copper phthalocyanine and the printing ink production process of a pigment, and printing ink comprising .beta.-form copper phthalocyanine pigment superior quality.
摘要:
According to the present invention, a resin is added to crude copper phthalocyanine comprising an &agr;-form and a &bgr;-form crystals in combination and dry-milling is performed in a deoxygenated atmosphere, to provide copper phthalocyanine pigment composition of superior quality which reduces considerable expenditure of time and labor associated with the pigmentation process of crude copper phthalocyanine and the printing ink production process of a pigment, and printing ink comprising &bgr;-form copper phthalocyanine pigment superior quality.
摘要:
The present invention is a method for preparing a .beta.-form copper phthalocyanine pigment comprising the steps of; dry milling crude copper phthalocyanine at a temperature between 110.degree. and 200.degree. C., and transforming an .alpha.-form crystal to a .beta.-form crystal by treating the resulting .alpha.-.beta. mixture of copper phthalocyanine in an organic solvent or a liquid mixture of water and an organic solvent. The preparation method of the present invention offers a .beta.-form copper phthalocyanine pigment at lower cost having equivalent or superior quality in color strength, clearness, fluidity and hue compared to the pigment produced by the conventional salt milling method.
摘要:
A compound of the formula [I] wherein R1, R2 and R3 are the same or different and each is hydrogen atom, wherein each symbol is as defined in the specification, a salt thereof or a prodrug thereof. The compound of the present invention, a salt thereof and a prodrug thereof are useful as factor Xa inhibitor and blood coagulation inhibitor, and are useful for the prophylaxis and/or treatment of diseases caused by blood coagulation or thrombus.
摘要:
A printer head comprising a plurality of driving arms provided corresponding to a like plurality of printing elements and a like plurality of electromagnetic driving devices for driving the corresponding driving arms independently. Each of the electromagnetic driving devices includes a movable yoke fixed to a corresponding driving arm, a core piece facing the yoke and having a coil mounted around the core piece, and a magnet adjacent to the core piece. Each of the magnetic circuits includes an adjusting member for adjusting the magnetic reluctance thereof.
摘要:
The present invention relates to a process for the continuous production of prepreg sheets unidirectionally arranged in parallel which involves contacting a plurality of fiber bundles arranged unidirectionally in parallel with each other with a solvent and continuously taking up the individual fiber bundle units under tension over curved surfaces of spreader bodies, such as cylinders while in a wet state, thereby spreading out said fiber bundles over the curved surfaces by means of said tension and subsequently drying the thus-spread out fibers. The invention also contemplates impregnating the dried fiber bundles with a specified quantity of molten resin to prepare the final prepreg resin-containing sheets. According to applicants' method, the fiber bundles are spread with a solvent prior to being impregnated with a resin and this method greatly decreases the frictional resistance between the fiber bundles and the curved surfaces making it possible for the fiber bundles to be spread out by only using a slight tension.
摘要:
An object of the present invention is to provide a process of producing propylene by contacting ethylene with a catalyst, where propylene is produced with high selectivity. The present invention relates to a production process of propylene, comprising contacting ethylene with a catalyst, wherein the catalyst comprises a zeolite as an active ingredient and an acid content in the outer surface of the zeolite is 5 % or less based on an acid content of the entire zeolite.
摘要:
A printing method to increase the printing speed of a dot printer. Before printing on the basis of the dot data representative of an original dot pattern showing fonts, graphics and the like, the original dot pattern is converted by converting M (M.gtoreq.3) dots successive in the line direction into N (M>N.gtoreq.2, M.noteq.2N) dots. Then, printing is performed on the basis of the thus converted dot data. In a modification, conversion is performed by converting each dot into n (n.gtoreq.2) successive intermediate dots in the line direction and when 2n or more intermediate dots are successive, selecting every m {(2n-1).gtoreq.m.gtoreq.(n+1)}-th intermediate dot. In another modification, pattern conversion is effected by converting each dot into n (n.gtoreq.2) successive intermediate dots, in a zone where printing is possible at the same dot interval as that of the original dot pattern, selecting only dots out of the intermediate dots that are arranged at the same dot interval as that of the original dot pattern, and in the other zone, selecting every m {(2n-1).gtoreq.m.gtoreq.(n+1)}-th intermediate dot.
摘要:
A serial printer for printing recording paper has a printing head movable at a right angle with respect to the feeding direction of the recording paper. Vibration applying means, such as a piezoelectric element, is mounted on the outer circumference of the printing head for vibrating the printing head finely during the printing operation.