ktp-ii operating instruction - sc-component.rusc-component.ru/d/1074460/d/ktp-iioi.pdf · kodak...
TRANSCRIPT
Konita KTP-II is a positive working Thermal CTP Plate
currently manufactured in Wenzhou, offering long press
run, wide processing latitude and good imaging speed.· Plate imaging speed, when used with
Konita DV-T1 developer imaging speed
= 120 – 150 mJ/cm2 .
The variance in imaging speed is to
cater for different plate setters imaging
heads, and a ±20mJ/cm2 batch to
batch variation.
Compatible with Konita DV-T1, DV-T8
developer and other brand developers
such as Kodak Gold star premium,
Huaguang GP-10 etc.
KTP-II General Appearance
Category Specification
Interleaving White interleaving
Image color Blue
Image color –
baked
Dark brown
KTP-II Product Specification
Category Specification
Alloy 1050 alloy, EC Graining
Spectral sensitivity 780-850 nm
Image energy
Requires 120 to 180 mJ/cm2 to achieve a 50%
dot (mJ/cm2 varies based on platesetter manufacturer)
Resolution (platesetter
dependant)
1 to 99% @ 300lpi @ 2400 dpi, 10 μm spot
Gauge range .0055” (.14mm) ---- .015”(.38mm)
Maximum plate width 58” (1480mm)
Packaging 20, 30, 60 and 100 plate packs depending on
size and gauge,
Shelf life 18 months under recommended storage
conditions
Operating & Storage Conditions
Category Specification
Operating conditions 16°C – 26°C (61°F-78°F)
Humidity 30% – 60%
Safelight
Allowed under white light operation 2 hours
@ 1500 lux (ambient room lighting)
Transport & storage Store plates flat in their packaging, away
from excessive cold, heat, high humidity or
direct sunlight.
Proper plate storage
conditions
Temperature 61°F– 78°F (15°C –
25.5°C)
Humidity 40% – 60%
Handling Instruction
When manual handling , the plates must be carried vertically to avoid
bending or kinking.
Plates carried with any kind of bend may distort the plates and effect the
loading and punching of the plate in the platesetter .
The punching and loading of plates in any platesetter needs to be very
careful. Problems will occur in both loading and imaging of the plate if the
plates are bent or kinked. This can be seen as the plate background having
areas of undeveloped coating.
Out of focus situations can also be caused by dirt, debris or any foreign
body on the platesetter drum or on the back of a plate.
Damage to the plate edges and introducing edge wave by poor handling
of the product will incur platesetter errors in loading, registration and
imaging of the plate. In most cases this will cause the plate to be rejected by
the platesetter.
Press Performance
Category Specification
Unbaked run length
(Alcohol fountains, 8-12%
Isopropanol)
150,000 impressions, depending on
press and paper conditions
Unbaked run length
(Alcohol replacement)
20,000 – 40,000 impressions,
depending on press and paper
conditions
Baked run length
(Aim temperature 500°F
Oven )
1,000,000 impressions, depending on
press and paper conditions
Ink / water balance Can be used in all offset applications
UV ink application Requires postbaking
Processor Set-Up and Configuration
Ensure that your processor is installed and set up correctly. Incorrect
processor installation or set-up can compromise imaging quality. The
developer cover and processor lids are to be in place at all times during
operation to reduce the oxidation of the developer that could lead to shifts in
developer conductivity and activity.
Konita Thermal Plate Developer (DV-T1)
Category Specification
Color Colorless/pale yellow
Dilution Ready for use
pH >13
Conductivity (at 25°C) 88 – 95 mS
1x1 2x2 3x3 4x4
1x1 2x2 3x3 4x4
1x1 2x2 3x3 4x4
Checkerboard Patterns
Checkerboard Patterns
Checkerboard Patterns
Under Exposure
(Increase laser power)
Correct Exposure
Match the 2x2, 3x3,and 4x4 pixel
patches with the lower half of the
checkerboard pattern
Over Exposure
(Decreased laser power)
Establishing Exposure on Kodak Platesetters
1x1 2x2 3x3 4x4
1x1 2x2 3x3 4x4
1x1 2x2 3x3 4x4
Checkerboard Patterns
Checkerboard Patterns
Checkerboard Patterns
Establishing Exposure on Screen and Topsetter Platesetters
Under Exposure
(Increase laser power)
Correct Exposure
Match the 2x2, 3x3,and 4x4 pixel
patches with the lower half of the
checkerboard pattern
Over Exposure
(Decreased laser power)
Competitor’s Plates
KTP-II is designed to compete with following products:
Agfa ----- Thermostar 970
Kodak ----- Achieve EM
IBF ----- Million
Ipagsa ----- Arte IP21, Rubi T-50
Huaguang ----- TP-II, TP-26, TP-P
Strong ----- STP
Xingraphics ----- FIT
and other similar plates. (any questions, please contact us)
To compete with those high-end products, such as Agfa’s
Energy Elite, Kodak’s Sword, Fuji’s LH-PA, please consider our
KTP-SR plate.
Processor Compatibility for KTP-II
Most of dipping tank processors will be suitable for KTP-II .
Below are listed some of them:
Kodak Mercury series
Kodak T series
Kodak Quartz series
G&J Interplater series
G&J Raptor Thermal
Grafmac all models
Protek all models
Tung Shung all models
Debao DB-CTP
Konita all models
Developer Compatibility for KTP-II
Best compatible :
Konita’s DV-T, DV-T1 and DV-T8
Kodak’s Gold star Premium
Compatible but probably requiring some adjustments on
temperature, dwell time, or brush pressure/speed:
Agfa’s THD-100
Huaguang’s TPD-II,TPD-III
Ipagsa’s IP-T8/T9
Not compatible :
Kodak’s K300, K400, 980, or SP200
Fuji’s LHD2-WA
Agfa’s THD-200
IMAF’s Therm-830
Xingraphics’s Arto
IBF Million HP
KTP-II Processing Conditions
Below are recommended parameters, however, depend on
processor configuration and brush pressure, the processing
conditions for KTP-II may vary on each individual case.
Category Recommended settings
Actual Developer
Temperature
23°C – 27°C
Dwell time 25– 35 seconds
replenishment 80-120 ml /m2
Anti-ox replenishment 50-100 ml /hour
Brush speed 80-120 rpm
Filter 50-150 micro cotton wound filter
Processor Maintenance
Even though some customers processing the plate up to
5,000 ~ 8,000 m2 without requiring clean the processor, we
recommend a maintenance at about 2,000 m2 along with filter
replacement.
Troubleshooting (1)
Symptom Possible root
cause
Suggestive action
Coating
debris in
non image
areas
(coating
redeposit)
Transport rollers dirty Clean all rollers.
Developer overextended
or filter blocked
Drain developer and replace with
fresh developer, or change filter
Developer re-circulation
pump failed
Fix recirculation or replace with a
high volume pump and hoses
Developer temperature
too low
Set developer temperature higher
Not enough water spray Adjust water spray
Developer brush not set
@ right speed or not
enough pressure
Check and adjust developer brush
speed and pressure
Not enough
replenishment
Adjust replenish rate
Processor speed too fast .Check and adjust processor speed
Troubleshooting (2)
Symptom Possible root
cause
Suggestive action
banding in
image areas
Laser power too low Increase exposure power
Weak Developer Check conductivity/ pH, change to
fresh developer
Laser setting incorrect Check power, focusing, reflectivity,
surface depth etc. Call trained
technician
Developer temperature
incorrect
Adjust developer temperature
Developer brush not set
@ right speed or not
enough pressure
Check and adjust developer brush
speed and pressure
Processor speed too fast .Check and adjust processor speed
Troubleshooting (3)
Symptom Possible root
cause
Suggestive action
Ghosting or
image attack
Laser power too high Reduce exposure power
Developer temperature
too hot
Set developer temperature lower
developer not compatible Change to right developer
Developer brush too
much pressure or speed
too fast
Check and adjust developer brush
speed and pressure
Too much replenish Adjust replenish rate
Processor speed too slow Check and adjust processor speed
toning at
start-up
Plate is underexposed Increase the laser power
Troubleshooting (4)
Symptom Possible root
cause
Suggestive action
Tinting or
scrumming
in the Non-
image area
Plate is underexposed Increase the laser power
Developer temperature
too low
Set developer temperature higher
Developer overextended
or filter blocked
Drain developer and replace with
fresh developer, or change filter
Developer brush not set
@ right speed or not
enough pressure
Check and adjust developer brush
speed and pressure
Developer depleted or
water contamination
Drain developer and replace with
fresh developer (check replenish
rate)
Plate batch variation Call your Konita representative
Troubleshooting (5)
Symptom Possible root
cause
Suggestive action
Roller marks
on the image
area
Roller pressure too high Check and adjust roller pressure
Developer temperature
too hot
Set developer temperature lower
developer too strong Change to right developer
voids Developer drops on the
entrance rollers
Clean the rollers
Corrosive debris in
processor tank
Clean the processor tank and
change the developer