CN1308255A - Direct platemaking printing equipment and printing plate - Google Patents

Abstract

The present invention relates to a directly plate-making equipment and its printing plate. It solves effectively the prolems of expensive CTD equipment and printing plate, and said invented equipment is comprised of image screening software, directly plate-making machine, special-purpose printing plate and matched embossing and flexible-printing press. It possesses the advantages of low cost, good quality and high efficiency, can be used for directly making plate for offset printing, embossing printing and flexible filmless colour printing.

Description

Direct platemaking printing equipment and forme

The present invention is direct platemaking printing equipment and forme, belongs to the plate making technology.Numeral directly forme-producing system is called for short CTP, is to have entered sophisticated technology and 99 years 9 phase 28-30 pages or leaves of equipment (seeing＜printed magazine) of practicability at present abroad.Printing＜today〉2000 4 phase 67-68 of magazine page or leaf).The present invention seeks to provides a kind of cheap and good-quality direct platemaking printing equipment and forme for the user.

Implementation method is as follows: after the picture and text workstation has been arranged version, carry out monochrome or color proofing color correction output earlier, with direct platemaking machine graph text information is recorded on the specialized version with digital form again behind the no problem, negative is removed the China ink of picture and text part with laser, expose following photographic layer, technologies such as positive is removed the non-graphic part, following printing down are roughly the same with tradition plate-making, just become exquisite colored printing through polychrome printing.

The present invention and existing thermosensitive CTP.Flexo CDI technology than advantage is: 1. price is honest and clean.About more than the 30 ten thousand dollars/platform of import machine, and the present invention only be its about 10%.2. cost is low, about 30 dollars of import temperature-sensitive version/open, and specialized version be about its 10%, adopt identical roasting version mode, available existing equipment, import flexo CDI version reaches hundreds of units, and a specialized version dozens of yuan.3. efficient height.External CDI numeral mask-making technology needs 7 procedures, and flexo technology of the present invention 4 roads only.With existing phototypesetting, the photomechanical production technology than advantage is: 1. cost is low.Color printing plate-making is annual to need a large amount of films, and the whole province of the present invention goes.2. efficient height.Existing plate-making needs film development, oven dry, and operations such as copy, and the present invention does not want entirely.3. quality is good.The plate elongation distortion can appear during existing flexographic printing, during printing down because of the light diffuse scattering, poor sealing, influences such as dust quality problems can occur, and the present invention can avoid entirely.4. easy to control.Existing technology is analog imaging, difficult control of time shutter; And the present invention adopts the imaging of computer control figure, and is easy.

Below be the present invention and the contrast of flexo CDI numeral plate-making technological process abroad, this technology is made up of digital imagery → exposure → flushing → operations such as baking version, and CDI technology is made up of digital imagery → back of the body exposure → main exposure → wash → dry → go to glue → operations such as post exposure.The two is compared the former and adopts thin version thermosetting technology, and cost is low, and operation is few, the efficient height, and the latter is the solid technology of thick version light, the cost height, and operation is many, and efficient is low, and the former can be used for glue, and is protruding, flexo, and the latter can only be used for flexo.

Directly platemaking machine is by ink-jet, and stylus printer or laser stamp improve and form, and remove and get ready, driving switch and circuit, controller, outside the difference of interface section, the word car, the paper feed part is roughly the same; And take technical measures such as linear electric motors, modulating net software, make repeatable accuracy reach 0.001mm.Specialized version is that China ink is coated on the forme equably, replaces the interception of film, does not have the Grains metal forming with chemical treatment and replaces the terylene base, replaces thick version photosensitive hardening with thin version photo-thermal curing.Below be the overall process of flexo of the present invention plate-making.Digital imagery is to control direct platemaking machine with computer, with digital form graph text information is recorded on the specialized version, and non-Ultra-Violet Laser can not influence the ultraviolet photographic layer; After the imaging version is placed on the platform, with 4 40 watts of daylight lamp proximity lithographies side by side, Yin Mo and photographic layer combine together, so need not vacuumize, leakage phenomenon can not take place; Wash available gas heater and replace washer, the China ink and the unexposed resin of shading were dissolved when negative developed, and formed the embossed layer of projection; More than two be on the basis of the existing conditions no matter how simple and crude indigenous method, be mainly economical, the rich professional equipment of buying.The baking version needs to use professional baking oven, can temperature be set by producer's explanation, the time, realize control automatically, and there is vent port on the machine top, and the systemic solvent of version is discharged in the gas evaporation mode.Will glue one deck air cushion rubber and cloth earlier before the sticking version, purpose is in order to strengthen elasticity, treats that forme dry by the fire sticking again version behind the natural cooling, dries by the fire an edition purpose and is for further quickening forme set time, and add the great seal amount, strengthens the property, and reduces cost, and raises the efficiency.Plate-making place best 3 or partition, 1 imaging gold-tinted bulb, 1 exposure daylight lamp, in order to avoid forme exposes too early, 1 is used for flushing and baking version.

Claims (4)

1. Directly platemaking printing equipment and forme be by image screening software, direct platemaking machine, and specialized version, supporting gentle, compositions such as embossing machine mainly show as 4 big features, and claim is as follows:

   1. directly platemaking machine is formed by printer or laser stamp improvement, adopts straight line (stepping) motor, and semiconductor pulse ultrahigh frequency laser instrument, controller are picture and text workstation main frame, and soft RIP adopts USB interface, 8 bit parallel mouths; Universal for imitating 24 pins or imitative ink jet type, high-speed type is a line.
2. 2. specialized version is the black version of being coated with of 0.4-0.6mm, the thick about 0.1mm of China ink, and protruding gentle version base is the chemically treated no Grains metal forming of thick 0.05mm, sensitization bed thickness 0.25-0.45mm.
3. 3. the supporting commentaries on classics embossing machine of taking turns changes roller platen into rubber roll, and forme wind cooling temperature lowering device is housed; Accurate stacked flexible printing press is equipped with accurate digital control closed loop polychrome cover Barebone.
4. 4. the image screening is a modulating net software.