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Specifications

CTcP Plate

UV-P UV-CTP Plate is a kind of special high-level high-sensitive plate developed in early 2006 to meet the demands of UV-CTP (CTcP)’s development. It fits both UV-CTP (CTcP) platemaking and conventional CTF platemaking. Its unique formulation and technology ensure that it features high sensitivity, strong compatibility and stable quality. So it is not only suitable for the superb color business printing, but also qualified for the requirement of high speed/ efficiency for newspaper printing.
1. Technical Specifications
Sensitivity (mj/cm²): 60-70
Clear step on gray scale: 3rd step, clear
Dot reproduction (%): 2-98%
Micro-line reproduction (um): 10-6
Run length (impression): 100,000
Storage Conditions Tem: 10-30 centigrade, Humidity: Rin≤65%, 18 months
 
2. Recommended Processing Conditions
Dilution ratio: TIGER PD: water = 1:4 (by machine); = 1:6 (by hand)
Developer conductance (mS/cm, 25 centigrade):   58-54 (by machine); 47-43 (by hand)
Developing TEMP (centigrade): 21-25
Developing Time (S): 30-50
Contamination removal: Retouching paste: 40s; Retouching solution: 10s
Gumming: A even thin coating, 20ml/m²
Baking:  240- 260 centigrade, 8-4 mins

3. Features
a) High-quality aluminum substrate
Guarantee the flatness of plates, precise plate sizes and various physical mechanical properties.

b) Complex grain structure & dense oxidize layer
Multilayered complex grain structure and dense oxidized layers are formed on the surface of the substrates through graining treatment with a series of chemical and electric-chemical methods to ensure that plate possesses precise dot reproduction and excellent anti-abrasion.

c) The substrate of hydrophilic treatment
Guarantee the adherence of the photosensitive layer to the substrate; the ink/water balance improved and also overcome the normal contaminations at shut-down time or during printing.
d) Perfect coating formulation
Even cosmetic coatings, extremely high sensitivity, fine dot reproduction, wide processing latitude, runlength up to 100,000 impressions. The extremely high sensitivity and the wonderful dot reproduction ensure that it fits UV-CTP (CTcP) plate-making very much. It is the best choice of the superb color business printing and the newspaper printing.
4. Characteristics

Excellent spectral property matches with UV platesetters. Platemaking speed reaches 10-15 2-up sheets/ hour with good dot reproduction. It has good developing property with broaden compatibility and higher run length up to 100,000 impressions, so it is proper for precise color printing.

The positive plate is a sort of light-decomposition plate. The photosensitive layer decomposes when exposed to light and it is removed during developing. So the non-image area is formed and unexposed region turns out to be printing image area. Generally speaking, during UV-CTP plate-making we need to remove a larger area which takes longer time to expose and plate-making is slower than the negative plate comparatively.

5. Application
The positive plate suitable for business printing has a good dot reproduction and processing adaptation.
 
6. Guarantee Period
18 months under above recommended storage condition.

7. Standard
HG/T2694-2003

CTcP Plate