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Sell conventional negative ps plate

Sell conventional negative ps plate

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Sell conventional negative ps plate
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Date Posted : 2009/12/29
Category : Printing & Publishing > Printing Plate
Offer Type : Sell
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Anhui Phoenix Plate Technology CO,.LTD

Membership Type : Free member
Registration Date : 2009-08-19
Country/Region : Malaysia China
Address : Hongyingtao Industrial Zone,Sanshitou Town Hefei Anhui, China
Phone : 86-0551-6331111
Fax : 86-0551-6333700
Contact : Zhang Qing

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    Negative Pre-sensitized Offset Printing Plate Introduction
  Phoeneagle negative PS plate have high pressrun,proper exposure rate,simple plate making,and perfect dot reproduction advantages and so on. In order to make the plate reach its best printing efficiency,please use it under the following conditions.
1.Printing down(Exposure):
Negative ps plate's exposure is finished by negative film jointing nearly with sensitive plate,spectrum range is between blue ray and ultraviolet ray(320-450nm),while exposing,the iodine gallium lamp is the most proper lamp-house and around 150mj/cm2 exposure quantum is recommended,in the actual operation,the exposure time can be different according to different exposure equipment and different film sort.So the exposure time must be decided by actual experiment result.
(1)Put FUJI gray scale(0.15tier)on the edge of plate and under the film,choose the proper exposure quantum to expose the plate,after finishing exposing,wash the plate,the optimum exposure quantum can be determined on the ninth step without printing ink.
(2)Use UGRA PCW82 control strip,choose proper exposure quantum to expose it,when the 15-20um weenie line appear on the control strip,the exposure quantum reach its optimum state.
(3)Remark:
In order to reach the most pressrun,the exposure quantum must be enough:
In order to prevent halftone(net dot)being scale-up,the exposure quantum cannot be added or decreased optinally.Avoid the tone value,transferred from film with halftone to printing plate,increasing excessively and decreasing excessively so than the thin part of the dark area diappearing;the tone value must be controlled in the permitted range.
(4)Before using our plate to print,please operate it under the yellow safe light to prevent exposing before printing for fear it influences quality.
.Develop
Kodak-956 developer and our company's negative developer are strongly recommended.
Develop temperature:25+-2


Related Keywords: printing plate, negative ps plate, ps plate, offset printing
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