摘要:
A plurality of driver modules for energizing selected electrodes are mounted on a printing head. The printing head has 64 driver modules, each driver module connected to corresponding electrodes included in respective groups. Specifically, driver module No.1 is connected to electrode No.1 in group 1, electrode No.1 in group 2, ..., and electrode No.1 in group 32. Driver module No.2 is connected to electrode No.2 in group 1, electrode No.2 in group 2, ..., and electrode No.2 in group 32. During operation, at a time tl, each driver module sends a signal to a conductor connected to an associated electrode therewith in group 1. Then, at times t2, t3, ..., each driver module operates as above with respect to groups 2, 3, ..., sequentially. Meanwhile, when the pixel density values in a single group are partially different each other, a correction is performed.
摘要:
Disclosed is a novel method for ink jet printing on a surface of a substrate made of a synthetic resin, the method comprising the steps of conducting a surface treatment to the surface so as to provide it with a specific surface free energy of 65-72 mJ/m 2 ; providing an activation energy beam-curable ink having a surface tension of 25-40 mN/m; discharging the ink onto the surface with an ink jet printing device thereby forming printed portions of the ink on the surface; and projecting an activation energy beam onto the printed portions. According to the disclosed method, printing articles having desirable image qualities are obtained by achieving a uniform dot diameter of the drop of ink on a synthetic resin substrate by utilizing an ink jet printing process.
摘要:
The present invention provide an aqueous type pigment dispersing agent having one portion which has a high affinity with a pigment and which has at least one type of selected from the group consisting of an organic dye, anthraquinone and acridone and only at a terminal end or at both terminal ends of at least one aqueous polymer selected from an aqueous linear urethanic polymer and an aqueous linear acrylic polymer, a pigment composition using the same and a pigment dispersion. The portion having a high affinity with the pigment can be adsorbed efficiently on the surface of a pigment. At the same time, for example, a pigment, used for ink or paint can be dispersed stably due to the affinity between the polymer portion and a disperse medium to improve the adaptability in use and the quality of coating articles.
摘要:
There is disclosed a method for producing copper phthalocyanine, which comprises running a reaction for synthesizing copper phthalocyanine by using a compound represented by the formula (1), phthalic acid or derivative thereof excluding the compound represented by the formula (1), copper or a copper compound and urea to obtain a reaction product: wherein R 1 to R 4 respectively represent a hydrogen atom or a substituent represented by the formula (2) wherein at least one of R 1 to R 4 is a substituent represented by the formula (2) and A and B respectively represent a carboxyl group, an alkoxycarbonyl group, a carbamoyl group, a carboxylate group or a nitryl group wherein the A and B may be further cyclized with each other to form an imide or an acid anhydride: wherein R 5 and R 6 respectively represent a hydrogen atom, a substituted or non-substituted alkyl group, a substituted or non-substituted alkenyl group or a substituted or non-substituted cyclic group wherein R 5 and R 6 are not a hydrogen atom simultaneously and may form a five- or six-membered ring which may have a nitrogen atom.
摘要:
A colourless or only slightly coloured pigment dispersing agent which can be used to disperse pigments having various hues, and which has the general formula (1) wherein k is from 1 to 3, 1 is from 0 to 2, R 1 is an amino group, R 2 is a halogen atom, an amino group, a nitro group, a hydroxyl group, an alkoxy group, a carboxyl group, a sulfonic acid group, an optionally substituted alkyl group or an optionally substituted alkenyl group, X 1 is -O- or -NR 3 - wherein R 3 is a hydrogen atom, an optionally substituted alkyl group or an optionally substituted alkenyl group, Y 1 is a amino derivative and Y 2 is an amino derivative, a hydroxyl group, an alkoxy group or a group wherein X 1 , R 2 , R 2 k and l are defined above.