Offset Printing Ink CMYK

Product Description

Specification

More details

Our factory
Our factory located in Shanghai. It has two producing plant and independent oil producing line. The productivity reaches up to 4000000 tons. It is certified by ISO, Rohs. You can visit at any time.

Knowledge for sheet offset printing ink, web offset printing ink and UV ink, digital printing ink.
Offset printing ink is used for lithographic offset presses. It is thick and tacky. Offset printing ink consists 3 parts, the ink vehicle, the pigment and additives. It can be used on web set printing and sheet fed printing. Web offset printing ink tend to be more fluid and have less tack than sheet offset lithographic ink.

UV ink usually means UV-curable ink. UV ink dries faster. So the presses can run faster and there is led risk of offset. There is led absorption of ink in the substrate, so colors are more vivid and glossy. UV ink has lower emissions of organic solvents and it is more suitable for printing on plastic and other non-porous substrates.

Digital printing ink is transferred directly onto the surface, rather than relying on aluminum plate and rubber blanket to transfer an image. It is liquid ink and quick drying.

What to do for specific color requirements from customers?
Customers sometimes need ink in specific color or ink with specific characteristics, like drying speed, smell, resistance to fading, gloss. Customers please send us detailed ink sample or pantone no# so that we can produce carefully for you.

How to storage offset printing ink?
The ideal process and storage temperature for offset inks is between 18ºC-25ºC. If the offset inks are too high in viscosity due to storing at low temperatures problems may occur by insufficient flow in the duct and picking at sensitive stocks. If the inks will be processed in higher temperatures, so because of low viscosity misting, ink/water problems or high sot gain may occur.
The ink cans have to be stored vertically standing under exclusion of daylight.

Tips before ink processing and after processing.
Do not judge the color of ink by the looking into the package only. All inks appear in thick layer n the container darker and dirtier as in the print. You may mistake the black to the blue or red.
You may find bubbles in the ink which is nitrogen mixed in producing to exclude oxidative drying problems. Do not worry, the bubbles will disappear on the rolls of the inking unit and will not lead to printing problems.
During longer print interruptions the rolls have to be cleaned and ink in the ink duct has to been sprayed on with antioxidant.
Remove skin whenever you find in the opened container regardless how small the skin is.
Inks which was mixed with printing aids should not filled backed to the original ink.

Package of our ink.
The normal package is in aluminum can per 1 kg or 2.5 kg, vacuumed to secure tightly sealing and safe transportation. 6 drums or 12 drums packed in a carton which has partition board to protect and fix each drum from collision. It is standard package with enough protective layers and reasonable design.

Other supporting chemistry in this procedure for your reference.
Roller wash.
Blanket wash
Spray powder.

Producing And Packaging

From producing to delivery, we make every details very carefully to guarantee the good product quality and service to customers.