Plate cleaning roller for gravure printing and its manufacture

A technology of manufacturing process and wiping roller, applied in printing process, printing, printing machine, etc., can solve the problem of peeling off of the surface layer and the epoxy layer, and achieve the effect of reducing production cost and improving printing durability

Inactive Publication Date: 2004-12-08
南昌印钞厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditionally, when making 82-type wiping plate, the epoxy resin layer on the rubber surface is mainly considered to improve the bonding strength between plastic and rubber. It has been verified by practic

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Prepare the slurry first: get 2.5 kg each of polyvinyl chloride resin (produced in Shanghai) and polyvinyl chloride resin (produced in Hefei), 2.16 kg of DOP (diethylhexyl phthalate) produced in China, and 2.16 kg of polyvinyl chloride resin produced in Japan. Polyether TD-1500 methacrylic acid polyether monomer 0.10 kg, polyester plasticizer 0.10 kg, filler colloidal calcium carbonate 0.20 kg, polytetrafluoroethylene modifier 0.10 kg, nanoscale graphite 0.09 kg, polyethylene derivative 0.02 kg of dispersant and 0.09 kg of tin mercaptide stabilizer, after mixing the above ingredients, stir for 1 hour with a vacuum defoamer, filter to obtain the required slurry, and set aside. Then, the prepared metal roller core is coated with epoxy layer at the bottom layer, roughened, non-epoxy bottom layer, plastic coating at the middle layer, cooling, turning and forming, cooling, roughening at the middle layer, and slurry on the upper layer.

[0025] The present invention has the f...

Embodiment 2

[0032] Get 3.2 kg of polyvinyl chloride resin (produced in Shanghai), 2.0 kg of polyvinyl chloride resin (produced in Hefei), 2.2 kg of domestic DOP (diethylhexyl phthalate), propylene X-980 trihydroxy 0.08 kg of trimethyl methacrylate monomer, 0.22 kg of colloidal calcium carbonate filler, 0.09 kg of nanoscale graphite, 0.03 kg of dispersant for polyethylene derivatives, 0.08 kg of tin mercaptide stabilizer, prepared by the same method as in the embodiment Get the slurry and set aside.

[0033] When using a rubber-coated roller, the drying roller is prone to produce air bubbles, so the new rubber-coated roller should be dried for more than 2 hours at a low temperature stage (about 110°C). When the formula is used in winter, due to the low temperature and slow gelation of the slurry, the sizing temperature can be increased, and the heating schedule can be:

[0034] Preheating temperature 120-130℃ 50-70 minutes

[0035] Sizing temperature 170-185℃ for 5-7 minutes

[0036] Pl...

Embodiment 3

[0047] Get 3.0 kilograms of polyvinyl chloride resins for the P-1069 paste produced by the emulsion method of Shanghai Tianyuan Chemical Plant and 2.2 kilograms of polyvinyl chloride resins for the MSP-3 polyvinyl chloride-1302 paste produced by Tianjin Chemical Plant micro-suspension method, 2.0 kg of domestically produced DOP, 0.2 kg of trimethylolpropane triacrylate monomer produced in Tianjin, 20 kg of colloidal calcium carbonate filler, 0.09 kg of nanoscale graphite, 0.03 kg of dispersant for polyethylene derivatives, tin mercaptide Stabilizer 0.08 kilograms, the engraved gravure wiping roller of the present invention is obtained by the same process of embodiment 2.

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PUM

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Abstract

A plate wiping roller for the carved-plate gravure printing of paper money is made up through preparing slurry from PVC resin, plasticizer, filler, stabilizer, lubricant, monomer, teflon and modifier ABS, preparing raw roller, preheating the roller, coating said slurry on said roller and plasticizing. Its advantages are low cost and high quality.

Description

technical field [0001] The invention relates to an engraved gravure wiping roller, in particular to a raw material formula and a manufacturing process of the engraving gravure wiping roller. Background technique [0002] For a long time, gravure wiping rollers have been processed and produced by various enterprises. Due to the low printing durability, the frequency of use and replacement is high, resulting in a huge consumption of raw materials for making wiping rollers. The process technology basically follows the process standard and formula provided by the foreign party when the super wiring notch is used. The raw materials used are all imported raw materials, which are expensive, the purchase channel is quite complicated, and sometimes the quality is not stable enough. In addition, in order to meet the sizing requirements in the production of gravure wiping rollers, the prepared slurry is required to have a low viscosity value at a high shear rate. After coating, the co...

Claims

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Application Information

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IPC IPC(8): B41F31/00B41M3/14
Inventor 李桂华曹建华
Owner 南昌印钞厂
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