Recent content by engin

Thank you Erik for your good explained application in offset for the equation that I wrote .

In engineering ( Mechanical and Chemical), Mass transfer and Heat transfer are the fundamental concepts ( breakdowns called as diffusion, conduction, convection, radiation, etc) and, for the engineers all the designs of the equipments for any process based on mass and heat transfer...

There is a saturation point ( or equilibrium stage) where the mass transfer occurs at which the concentartion difference of the two systems is zero, means ,there is no driving force to flow the concentration any more ( in this case water evaporation from paper to the environment of the printing...

This phenomenon is called as "mass transfer" in which the flow ( of anything mass, heat,light,etc) always from the high concentration to the low concentration and this concentration difference is also called as "driving force" which creates this flow to occur . But the flow rate depends on many...

Actually the formula selection of the founts by the chemist will help in such problems, actually I do not know the phenomenon but just ask to the formulator and he gives only the product name nothing more, but the suggested founts works better than normal one. At a printing house, we've seen a...

Some pdf's

In winter, while visiting a newspaper where the logo design was solid cyan and 40 % magenta dots. The cyan was not transferring on to the paper and picking the paper surface and the operators were trying to increase the cyan level from control panel. Around 50000 copies after the press got...

Before the ink transferred from plate to blanket,on the plate it absorbs some amount water ( 15-20 % may be) in it called as emulsification, without absorbing the desired amount of water ink does not transfer from plate to the paper (In winter or cold environments since the viscosity or the body...

There are food grade LMQ UV inks available in the markets, but due to recent REACH regulations in EU, the photoinitiators are been investigated and sone PI's will be out of use which results in poor adhesions and drying. or misting of UV inks, a suitable fount solution search will help and...

Hi Kees, All the conventional inks are based on oils, either purely vegi or in combination of vegi+mineral oils. Oil is oil and either vegi or mineral, they are water pollutant. Vegi inks are preferred for packaging prints to minimise the mineral oil migration and the extreme point is LMQ inks...

Conventional LMQ offset inks contain vegi based oils and esters. In their natural circulation, from an independent Institute ( like ISEGA) certification for a certain time ( for 2 years) should be exists. Their main feature is not the environment but to give safe printing conditions for foods to...

Dear Cemetary, in Turkish Market we saw some glazing and ink built up on the rollers.

One more info over D Ink Man: For aluminum , ask for non-leafing type with vegi oil based ( which dries oxidatively). Non-leafing silver looks weaker but after application on it, looks better. It is also better in color mixing and pantone catalogue with 10000 series, uses this silver. Even some...

For those who interested..

For those who interested..