Monday, May 25, 2015

Discusses the application of tissue paper in the digital printing machine on the difficulty

http://www.lprinting.net/content/?942.html
The digital printing technology has developed to a new level, toner, ink jet technology, or electronic ink technology, etc, have been relatively mature.But the application of tissue paper in the digital printing presses, still is a problem not to conquer.Described in this paper, tissue paper digital printing office paper Zhang Jun for gram below 35 g/m2 of bible paper.This kind of problems that exist in the tissue paper in the digital printing process is mainly paper paper and ink penetration.Either a ink technology, tissue paper feed problems always exist, and for inkjet technology still exist ink penetration and resolution is not high.Other tissue paper with the traditional digital printing binding postpress more multifarious.
With 5600 HP Indigo digital printing machine as an example, this machine use electronic ink, the machine can print the paper thickness is 0.07 mm, the equivalent of 60 ~ 70 g/m2 g/m2 of the paper.Tissue paper to print below 35 g/m2, the equipment has carried on the proper transformation and adjustment.Here are 5600 HP Indigo in the process of transforming test, adaptability in paper, electronic ink, paper, deformation, static and binding the problems and solutions are discussed in this paper.
1. The paper ark choose
HP Indigo digital printer paper 5600 cabinet is composed of four lost cartons.The first box direct docking feed bridge channel, transmission distance closer, and paper in the process of transmission, don't turn, unchanged, suitable for placing tissue paper printing paper box.And the second, three, four cartons due to vertical thin paper, paper is not smooth, so it is not recommended as tissue paper carton.
2. Feida paper absorption,
Paper pulp spraying onto the felt cloth, through extrusion, drying, calender, rewinding.Felt cloth fiber left many pinhole on the paper.The existence of the pinhole is a big obstacle to a tissue paper printing.The less the thick paper, pinhole, in contrast the thinner paper pinhole.Pinhole brought difficulties to feida adsorption paper, conventional feida adsorption, prone to double a tissue paper.To solve this problem the paper and feida suction systems need to begin.Digital printing with tissue paper to paper formation, quality of a material is tight, and less paper pinhole.HP Indigo digital press printed tissue paper, feida suction systems need to make corresponding adjustment.Compared with traditional printing presses, 5600 HP Indigo digital printing machine has simple structure, blowing and suction, paper briefly.But the machine being limited by the space, the structure is hard to do complex transformation (such as increasing blowing paper, paper).But can consult traditional principle of printer paper institutions, increase the appropriate paper parts, reduce the double a paper moves because of friction.In order to reduce paper pinhole of breathable, double card, can also be based on original feida suction systems increase the air conditioning system, for tissue paper with big volume, small pressure adjustment method, precise carefully adjust inspiratory capacity.
3. Bridge the paper
HP Indigo digital press 5600 bridge the paper system has a neat paper positioning function, operation mode is using inhalation suspension transfer paper way.For tissue paper printing, suction pressure and gas in the process of transfer must be adjusted to the appropriate state, to make the tissue paper transmission stability, no edge.
4. Diao teeth bite paper
Tissue paper digital printing and traditional printing, diao teeth of smoothness and paper pressure uniformity is printing the key to success.5600 HP Indigo digital press rubber roller with high temperature properties and paper by the diao teeth biting through high temperature rubber cloth and embossing roller, if smoking tooth pressure uneven, the paper will produce deformation or ruffle stress, after high temperature rubber cloth, wrinkles will come true, so diao teeth smooth and uniform pressure is very important.
5. Swing arm suction nozzle of paper
HP Indigo in the 5600 paper flip and output paper way is to use suction nozzle swing arm.In order to ensure the paper transmission stability, uniform distribution of suction nozzle to swing arm, symmetry.Inspiratory capacity, air pressure size adjusted accordingly to make paper stable adsorption, does not produce wrinkles.
6. Double transmitter to send paper
Double transmitter is playing the printing of paper of paper, it adopts the steel ball rolling paper tape transport mode.Tissue paper printing, need according to the stiffness of the tissue paper surface smoothness, and the corresponding adjustment of steel ball or material quality, guarantee the smooth the transmitting tissue paper.You also need to increase the appropriate guide device, in order to overcome the impact of airflow for tissue paper machine run time, the paper stable operation.

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