Hangzhou Colon Digital Technology Co., Ltd.

High quality product, professional service, being the core supplier in laser industry!

Home > Knowledge > Content
What are the different configurations of the polishing device for a single paper offset machine
- Dec 14, 2017 -

Printing enterprises should choose different configurations of sheet fed offset printing machine for packaging based on the conditions of printed matter and enterprises, and there are 5 specific plans.

(1) add the optical system on the basis of the 5 color machine or the 6 color machine. The 1 glazing unit (water or UV), the increase of 1 water units and 1 UV increased 1 the glazing unit, disperse glazing unit and 1 water units, increasing 1 water units and 1 Golden 1 glazing unit, the increase of water a glazing unit and 1 lrodin (with pearl glazing effect pigments) glazing unit. The first three ways are mainly used for packaging materials, labels, brochures, covers and calendar printing. The latter two ways are mainly used for cigarette packaging paper, perfume packaging paper and brochure printing. The fourth way can also be used for labels and chocolate wrapping paper printing.

(2) 4 color standard ink + oil pressure upper light + water-based light, can produce light effect, suitable for high quality labels, packaging materials and brochure printing.

(3) mixed standard ink + oil glazing +UV glazing is superior to water-based polishing. It is suitable for packaging materials, labels, brochures and calendar printing.

(4) mixed standard ink +UV highlighting +UV dull light. The mixed standard ink +UV highlighting can achieve the effect of pure UV printing, and the effect of the dull light is far more than the Drip-off printing process based on the heat dispersive light.

(5) the opaque white +4 color standard ink + special color + waterborne light + golden glaze. There must be a drying device after the glazing, the use of an infrared drying device and a UV curing device on the UV. At present, there are 3 kinds of drying equipment used in the drying device, the integrated drying device equipped with the lengthening and paper collecting unit and the special drying unit.

As with a single paper offset press, a roll paper offset machine can also be single or double-sided light, humidified, and silicon. The main function of glazing is to improve the gloss of printed products and protect printed matter, or to coat wet glue (mouth glue). If we use glue containing special additives such as spices, after drying, we can destroy particles capsules by pressure friction, and the fragrance can be left on the paper tape. The main function of humidification is to prevent static electricity, supplement the moisture lost by drying the paper tape, restore paper properties and reduce temperature, and create conditions for rewinding and cutting sheets. Addition of silicon (silicon content in 2% to 10%) in addition to the above functions can also protect the printing products, to prevent dirt.

7. post print processing

The post press processing is a great advantage of the roll paper printing machine. Now the single paper offset press also adds this kind of function. At present, the post printing device of the single paper offset press can be connected with the line, such as on-line cutting, number, pressing, perforating, cutting, indentation, pressing and so on.

(1) online segmentation

In order to solve the small format printing by large format offset printing is required after off-line problem cutting, Roland, KBA and other companies have launched online cutting device, embossing drum is usually installed in the last of the unit. Roland online cutting device, its driving components; KBA's online cutting device, the pressure on the cutting knife impression cylinder controlled by air pressure.

(2) number and protruding

Numbers are often required in some packaging and bill printing. The previous work was done after printing, and the number was printed alone. Now this work can also be processed together, greatly improving the efficiency of production.

(3) punching, cutting, indentation, pressing and protruding

Some prints sometimes need perforation, cutting, indentation, and pressing. These special requirements can now be finished.