Woolley Tube offset printing machine

The principle of the tube offset printing machine is mainly based on offset printing technology, and its core lies in the use of the principle of “water and oil do not mix” to achieve printing. The printing plate of the offset printing machine is divided into two parts: one is the blank part that is hydrophilic and oleophobic, and the other is the pattern part that is oleophilic and hydrophobic. During the printing process, the printing plate is first watered and then inked. The blank part and the pattern part selectively absorb water and ink to form a water film and an ink film. The ink is transferred to the rubber cloth through the pressure of the machine roller, and finally the ink on the rubber cloth is transferred to the printed material through the pressure of the impression roller.‌

Ⅰ.Structure of tube offset printing machine

The main components of the printing machine include:

·1.‌Plate cylinder‌: used to carry the printing pattern.

·2.‌Rubber cylinder‌: transfers the ink on the plate to the hose.

·3.‌Impression cylinder‌: used to press the ink on the rubber cylinder onto the hose.

·4.‌Conveying mechanism‌: responsible for the conveying and positioning of the hose.

·‌Ink fountain‌: provides ink‌2.

Ⅱ.Application

Tube offset printing machine is widely used in printing various tubes, including toothpaste tubes, shoe polish tubes and medical ointment tubes. Since the hose materials are mostly non-ferrous metals or plastics, it is usually necessary to print a layer of white ink or other base color ink on the surface before printing to ensure the printing effect and ink adhesion

Ⅲ.Maintenance and care of tube offset printing machine

In order to ensure the normal operation and extend the service life of the hose offset printing machine, regular maintenance and care are required:

·‌ 1.Clean the plate cylinder and rubber cylinder: Regularly clean the ink stains and impurities on the cylinder.

·‌ 2.Check the water-ink balance: Ensure the balance of the water film and the ink film to avoid printing quality problems.

·‌ 3.Lubricate the machine parts: Lubricate the transmission parts of the machine to reduce wear.

·‌ 4.Check the water delivery roller and the water distribution roller: Ensure that the water film is uniform to avoid water marks or uneven ink marks during printing