Nano-Ferrofluids in function as MICR Ink for the Inkjet Printing

Magnetic fluids made of magnetic material (subdomain nanoparticles) dispersed in a solution so that an agglomeration of the material particles is excluded even under the effect of an external magnetic field. This is ensured by a corresponding coating of the particles. If a magnetic field is applied vertically, they take almost the character of solids. Steadily growing the economic value of nanomaterials consisting of particles. smaller in at least one dimension than 100 nm. The latter are located outside of magnetic fields in thermodynamic equilibrium.

When it comes to print applications for security purposes, such as the printing of the MICR line of bank compliant checks, so it depends mainly on a precise adjustment of the particle size of the magnetic material at the nanoscale. Two parameters are decisive: the nozzle size of the inkjet printheads on the one hand, and the signal strength as required by the magnetic check reader on the other.

In the preparation of such special magnetic inks, we have many years of experience. Our inks are formulated so that they are tuned precisely to the high-performance digital MICR cheque printing, which in many countries, especially in the US, UK, Australia and India continues to play a prominent role. Approximately 90% of the use of magnetic ink is aimed at the production of bank cheques and payment and remittance documents. It is about the fulfillment of the MICR safety function (MICR = Magnetic Ink Character Recognition). The remainder is in the production of vouchers and insurance policies.

Lastly, the most important consideration for evaluating our MICR ink solution is that our MICR ink is both de facto and de origine universal in the sense that it harmonizes with all printheads and machine types, which in the entire inkjet market (whether office or high speed production). occur, without problems. This can be said with almost logical certainty. Namely, the metal nano particles, colloidally dispersed in the ink, are so small (20 nm-1 nanometer = 1 billionth of a meter) compared to the nozzles of the printheads used in the commercial inkjet systems, that physical damage or even deterioration of these functional elements is completely eliminated. At the same time, the MDT MiCR ink is absolutely neutral in pH, so the question of a possible chemical interaction of the MDT MICR ink with the printheads of inkjets can be negated also a priori.

To repeat it: We produce MICR ink which is compatible to all printhead types of High Speed Inkjets (Panasonic, Ricoh, Xerox, Kyocera, Konica Minolta, Canon, Memjet , Hewlett Packard, Epson) due to the uniformity of the dispersed nano-particles (20-50nm). The Ricoh Machine Types need a slightly higher density of particles. If here problems were found, they stand in connection with the filters installed by default. This standard filters used in the various high-speed presses are adapted to pigment and dye inks, and sometimes have peculiarities that do not match the MICR ink (eg, some are made of metallic material that does not work with magnetic fluid, or they are too narrow for a "colloidal dispersion" - in contrast to what is called in the chemistry "solutions" and what the normal inks are all just). The "normal" filters are adapted to inks that are solutions in the chemical sense. In contrast, our MICR ink is a "colloidal dispersion" in which nanostructured particles (nanometers: 1 millionth of a millimeter) are in a perpetual state of suspension. Experience has shown that slightly wider meshed plastic filters ensure a smooth printing process with our MICR ink. Such custom filters are included in our delivery of MICR ink for high-speed inkjets.

What does our strange as well as miserable competition say on the subject? Well, she claims to have invented a mysterious "flex adapt" that supposedly allows her to adapt, as if by magic, the chemical and physical properties of the ink we developed and manufactured to the specific needs of the various printheads. Interesting phenomenon. Basically. But who is this who makes the miserable claim? A notorious tax evader, a notorious infringer of consumer rights (the FTC's files are on display), a notorious ignorant of environmental regulations, a notorious neglect of health and safety. And what do the even stranger corrupt employees of the printer manufacturers say? That which the individual offered to them is "their ink" and thus only usable in "their" printers. A most unholy alliance to the detriment of consumers.

And what is the name of this competition? Well, she has a fair amount of aliases in the right criminals way. It's called:; Diversified Productivity Solutions Ltd., San Diego; DNSC, 2161 Blount Rd., Pompano Beach, 33069, FL; Other companies are located in Switzerland (Diersified Poductivity Systems SA, Diersified Productivity Systems PS, Diversified Productivity Systems Ltd. are all located in 6460 Altdorf, procuration: Rudolf Oskar Frauchiger) and in Germany (Digital Ink Solutions in Bad Kissingen) with the straw man Nicolas Naatz. You do not have to be an Einstein to realize that such a corporate conglomerate has something to do with tax evasion.


Example of a Japanese cheque with MICR line

In order to process large quantities of cheques automatically magnetic readers are useful. This is the reason why magnetic ink is required to print cheques. At the end of them have to appear rows of magnetic signals emitting characters.

MICR INK – UV curable

Many inkjet printers now have so-called UV print heads. These are designed to dry or cure the respective inks

on the printing substrate using UV radiation of determined wave lenght, which is integrated into the printing process.
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Manufacturing Process

In the production of magnetic special inks, we have many years of experience.

Within the framework of an extensive series of experiments, we have succeeded in discovering an unusually simple method for industrial scale production.
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Magnetic Fluids

Mips Dataline offers magnetic fluids mainly designed for two functionalities,

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