| Problem
| |
Solution |
BACKING
New ink fails to flow and replace ink removed
by fountain roller. resulting in progressively
lighter
color
| Insuficient in fountain,
or ink is too thixotropic. |
Add more ink in fountain with
knife to keep it fluid. |
| Ink too short and buttery. |
Consult ink manufacturer to reformulate
ink for better flow. |
| Problem
| |
Solution |
BACK TRAP MOTTLE
Ink is pulled from the printed surface (back trapped)
on to the blanket as the sheet passes through
successive printing nips, creating a mottle image.
| Fast setting work and turn inks. |
Use a more stable, slower drying
ink with a lower solvent content. |
| Critical inks (usually dark colors
or cyan and magenta) are printed in the first
and second units. |
Change ink sequence. |
| Poor layout or sequence. (Solid
is overprinted in another solid or a screen tint.) |
Change layout and / or sequence
if possible to print lighter. |
| Improper tack sequence. |
Use tack graded inks, and print
the highest tack first, the lowest tack last;
or use properly formulated uniform tack inks. |
| Ink is drying during long make
readies. |
Clean press to shorten make ready
time. |
| Excessive ink solvent evaporation
due to fast press speed. |
Reduce press speed and use fresh
ink. |
| Certain gloss coated sheets have
a high potential for back trap. |
Try other stocks. |
| Press design; the greater the
distance from the first to last printing until,
the greater the potential for mottle. |
Change printing sequence if possible. |
| Excessive paper - to - blanket
squeeze. |
Reset to manufacturer's specification. |
| Certain compressible blankets. |
Change to quick release conventional
blankets with high solvent resistance.. |
| Problem
| |
Solution |
CHALKING
Ink pigment does not bind to stock
| Too much vehicle has penetrated stock too fast. |
Use overprint varnish or a sealing size to
bind ink to paper. |
| Ink does not contain enough drier for stock
involved.. |
Consult ink manufacturer to formulate ink for
stock. |
| Stock too acidic, causing slow drying. |
Consult ink manufacturer to formulate ink for
stock, or change stocks. |
| Ink film too thin (strong). |
Consult ink manufacturer to adjust ink for
less strength. |
| Fountain solution pH too low. |
Adjust fountain solution to higher pH. |
| Ink too soft, providing no hold - out. |
Consult ink manufacturer to reformulate ink
for more hold - out. |
| Problem
| |
Solution |
INCONSISTENT COLOR REPRODUCTION
| Proofing substrate does not match
printing substrate. Paper press proofs area different
brightness than printing substrate. |
Consult manufacturer to adjust
color hue and hold out of ink to match the proof.
If a change in printing substrate is possible,
attempt to closely duplicate the proofing substrate. |
| Process color prints do not match
supplied proofs. |
a) Consult color separator
to determine what ink hue is best or reproduction
of the supplied proof.
b) Obtain a new color separation prepared for
condition of press room. This may be done by
providing color separator with printed samples
of previousjobs which exhibit typical inks and
production standards realistically reproducible.
c) Establish standard procedures. Attempts
to make the job on press lead to color variation.
All phases of color separation, pre-press and
press operations must be carefully coordinated. |
| Special, spot color does not match
proof. |
Consult ink manufacturer. |
| Different Pantane Color Formula
Guides. |
The Pentane color formula Guides
are reproductions of colors and subject to variations.
If exact matches are required, the printer's customer,
the printer and ink manufacturer must all use
the same Formula Guide. |
|
Problem
|
|
Solution |
CRYSTALLIZATION
Succeeding colors do not adhere to previously
dried ink.
| Intial ink film is high in hard
waxes. |
Consult ink manufacturer to formulate
succeding inks for better lay. |
| Too long a delay between first
and succeeding colors. |
Run succeeding colors as quickly
as possible. If job requires imprinting later
leave area blank so later colors are printed on
plain paper. |
| Excessive spray powder used on
initial colors prevents adhesion. |
Handwipe prints to remove excess
powder. |
| Dry inks colors have formed a
hard continuous film. |
Consult ink manufacturer to add
solvent to succeeding inks to soften previously
printed colors for better adhesion. |
| Initial ink film contains too
much drier. |
Consult ink manufacturer to reformulate
ink. |
| Too much heat generated by infra
- red dryer forms a hard film. |
Reduce drying temperature. |
|
Problem
|
|
Solution |
DOT SHARPNESS
Printed screens and reverses are plugged, appearing
muddied, and show higher values than the "prog"
proof shows
| Too much form roller-to-plate,
plate -to-blanket, or blanket -to-blanket pressure. |
Check setting and correct to proper
pressure. |
| Doubled or slurred dots. |
See SLURRED OR DOUBLE IMAGE. |
| Ink body is too long and is squashing
at the point of impression. |
Consult ink manufacturer and have
provide stiffer ink. |
| Ink is too water receptive. |
Consult ink manufacturer. |
| Poorly ground ink. |
Consult ink manufacturer and have
ink reworked. |
| Piling. |
See PILLING. |
| Plate was not sharp enough to
compensate for normal dot spread from film to
plate to press. |
Have cameraman and plate maker
cooperative in making sharper halftones, negatives,
positives, and plates. |
| Plate poorly desensitized causing
image coating between halftones to print. |
Desensitize or remake plate. |
| Insufficient dampening solution. |
Increase dampening solution to
cover plate evenly. Check or dirty dampener cover;
replace if necessary. |
| Ink roller train is carrying too
much ink. |
Reduce ink and reduce water. |
| Blankets or rollers too soft. |
Recondition blankets or rollers;
replace if necessary. |
| Blankets packed incorrectly |
Check packing. |
| Problem
| |
Solution |
DRYING
Ink film remains wet or tacky in the touch
| Ink is taking on too
much water. |
Adjust ink/ water
balance; consult ink manufacturer for proper adjustment. |
| Ink film thickness excessive. |
Run less ink or consult
ink manufacturer to increase strength for this
purpose. |
| Plate dampening is uneven. |
Keep dampeners clean
and clean from accumulated dirt. Prevent drafts,
check windows, vents, and forced air system. |
| Stock is not porous enough
or has too high water content. |
Switch stock to correct
porosity or water content. |
| PH/conductivity of
fountain solution is incorrect. |
Check pH/ conductivity
and adjust to 4.0 - 4.5 pH. |
| Ink not formulated for
the stock. |
Consult ink manufacturer. |
| Insufficient air/
oxygen circulation. |
Wind sheets between printing
and other operation. Use anti- set- off spray
to keep sheets apart. Imprevious sheets such as
plastic and foil should be kept in small lifts,
slip sheetfed or winded frequently. |
| Relative humidity is
too high. |
Control Pressroom humidity.
|
| Problem
| |
Solution |
FADED COLOR
Color is lost during drying or when exposed to
light usually in large solids or solid tints.
| Insufficient oxygen for complete
drying causes oxidation of pigments, bleaching
or burning them out. |
Consult ink manufacturer. If pigments
are susceptible to oxidation, intermittently wind
the sheets during the first few hours after printing. |
| Ink pigments are especially susceptible
to fading. |
Where light fastness is important,
consult ink manufacturer about using permanent
pigments. |
| Problem
| |
Solution |
GHOSTING, GLOSS
(Also called CHEMICAL or GAS GHOSTING) A large
solid on the back-up side of a sheet shows excessive
gloss opposite the ink on the side printed first.
| Large solids printed on a back
- up form. |
Print the heavy form first, and
the light form on the back up side. |
| Large lifts. |
Run small lifts when backing up
the sheets. |
| The first side is backed-up too
soon after it is rum. |
Hold lifts three days ( per GATF
) before printing back-up side. |
| Glossy sheetfeld inks. |
Wind sheets before printing back
up side. Keep lifts in sequence for back up. Keep
lifts away from sources of excessive heat or cold.Run
sheets through the press without printing to supply
fresh air before the back up side is printed.
On small expensive runs, slip - sheet the stock
while printing the second side. |
| Problem
| |
Solution |
GHOSTING MECHANICAL
A light ot dark print of another part of the form
appears in large solids of dense halftone
| Poor Layout. |
Improve layout. |
| Ink film too thin. |
Consult ink manufacturer to weaken
ink so a heavier ink film may be carried. |
| Ink too transparent. |
Consult ink manufacturer to make
ink opaque, if possible. |
| Problem
| |
Solution |
GLOSS
(POOR) There is a decrease in the normal reflection
of light from the dried ink surfae
| Paper too ink absorbent. Paper
surface too rough and grainy has poor gloss. |
Consult paper manufacturer to
obtain stock with more ink hold out Obtain stock
with smoother surface better gloss. |
| Press dampeners (too much water
being introduced in to inking system). |
Cut back on amount of fountain
solution used. Consult ink manufacturer to decrease
water receptivity of ink. |
| Ink film thickness too low. |
Increase ink film thickness. |
|
Problem
|
|
Solution |
GRAY AND WEAK SOLIDS
Solids appear weak, lack density
| Improper ink and water balance. |
Adjust to proper ink and water
balance. |
| Improper concentration of fountain
solution. |
Check fountain solution and adjust
to proper pH/ conductivity. |
| Non-uniform dampening. |
Check condition of brushes flicker
blades etc.; clean or replace. |
| Loss of image area.
NOTE : Additional solution to correct gray
and weak solid. |
See PLATE WEAR.
Check for improperly set form rollers. |
| Problem
| |
Solution |
HICKIES
Blemishes in the printed ink film
| HICKLES WITH DARK FILLED OR
OPEN GOUGHNUT SHAPED CENTERS -
Generally indicate presence of a particulate. |
|
| Dried ink particles. |
Avoid skin when removing ink from
cans or kits. Protect against skin formation by
placing a sheet of waxed paper on the surface.
Clean the press thoroughly and prevent fresh ink
from mixing with dried ink around the fountain
edges. Eliminate caking on ends of rollers by
regular manual washing. |
| Roller particles. |
Recondition rollers and drums.
Scrub rollers with pumice water and blanket wash
to remove dried ink, water soluble gum deposits
and glaze. Work drums with petroleum jelly to
remove surface oxidation or rust. Replace worn
or disintegrating rollers as needed. |
| Dampener cover particles. |
Replace suspect sleeves or rollers
as needed. |
| Plate particles. |
Check plates for loose coatings
or aluminum shaving from packages. Make certain
coating have been completely removed during processing. |
| Foreign particles. |
Inspect pressroom and press for
cleanliness. Check heating and air conditioning
systems for circulation of dust or particulates.
Vacuum surface or overhead fixtures such as lights.
Hang Plastic sheeting over the press to catch
falling particles. Reduce application of spray
power. |
| HICKIES WITH OPEN PINHOLE CENTERS
- indicate paper may be involved. |
|
| Loose paper coating or dust |
Check incoming paper. Vacuum edges
before feeding in to the press. Install sheet
cleaning devices. |
| Old, used, or tacky ink. May pull
coating from paper. |
Consult your ink manufacturer
to adjust tack and / or viscosity of ink. |
| Excessive dampening solution ma
lift coatings from sheets. |
Reduce setting or dampening system.
Also see INK / WATER BALANCE. Note : Properly
maintained hickie - picker rollers do work. Teflon
shrink wrapped rider rollers leather covered or
gained rubber may be used effectively All type
require frequent scrubbing for optimum performance. |
| Problem
| |
Solution |
INK / WATER BALANCE
Frequent adjustment required on press to maintain
print quality
| Excessive fountain solution. ("Orange
peel effect " occurs in solid areas of print.) |
Reduce dampener settings. Isopropyl
alcohol or an alcohol replacement can help reduce
amount of fountain solution required to keep plate
clean . |
| Fountain solution mixed too strong.
(commonly seen as washed out looking color.) |
Ink will readily emulsify. Adjust
pH to a 4.0 - 4.5 range. |
| Fountain solution too weak, (commonly
seen in solid areas as print as " poor ink
lay" or " orange peel effect ".) |
Increase fountain concentrate
in solution to 4.0 - 4.5 range. |
| Improper dampening Roller setting. |
Reset rollers. Be sure dampener
form rollers are driven by the vibrator roller
and not the plate. |
| Improper ink form roller setting. |
Conduct ink stripe test to check
form roller pressure. |
| Improper ink fountain Settings.
|
Adjust the amount of ink at fountain.
Allow adequate time for adjustment to take full
effect. |
| Weak ink, i.e. low color strength. |
Consult ink manufacturer for proper
adjustment. |
| Ink taking up too much water.
|
Consult ink manufacturer. |
| Problem
| |
Solution |
MILEAGE
More ink used per impression than normal
| Lack of control on color densities. |
Adjust color densities to minimum,
consistent with satisfactory print quality. |
| Ink penetration into stock too
rapid. |
Consult ink manufacturer for ink
with more hold -out. Change to less porous stock.
|
| Improper ink and water balance. |
Reduce amount of water carried. |
| Low pigmented inks. |
Consult ink manufacturer for proper
tinctorial strength. |
| Excessive waste at start up of
run. |
Improve start - up procedures. |
| Improper estimate of coverage
from job to job. |
Establish ink usage history so
that these figures can be used to more accurately
predict ink usage. |
| Problem
| |
Solution |
MOTTLED SOLIDS
Printed solid area is not uinform (smooth) ink
appearance or density.
| Stock has non - uniform surface
formation. |
Get better grade of paper. Consult
ink manufacturer to provide weaker ink and minimize
and penetrating tendencies. |
| Too much printing pressure. |
Reduce printing pressure. |
| Improperly set ink form roller
or roller ink poor condition. |
Check condition and reset ink
from roller to specification. |
| Improper ink and water balance. |
Adjust to paper ink and water
balance. |
| Blanket has not been changed for
a long time and has become worn and rough in certain
areas. |
Replace with a new blanket. |
| Problem
| |
Solution |
MUDDY HALFTONES
Halftones lack sharpness in highlight arease.
| Excessive ink being applied to
the plate. |
Reduce ink. |
| Poor materials for good reproduction. |
Check reproduction process. |
| Plate improperly processed. |
Re - check exposure using Gray
scale (Stouffer scale). |
| Excessive linting. |
See PICKING/ LINTING. |
| Improper form roller settings. |
Adjust setting toManufacturer's
specification. |
| Improper ink and water balance.
Note : Additional solutions to correct Muddy
Appearance of Halftones. |
Adjust to proper ink and water
balance. Check for glazed blanket. |
| Problem
| |
Solution |
PICKING / LINTING
PICKING - Lifting
of the coating from coated stocks onto blankets,
plates or rollers.
LINTING
- Pulling fibers uncoated stock
| Too much water reaching papers. |
Reduce dampener setting for proper
performance. |
| Paper surface trash, coating dust,
slitter or trimmer dust. |
Make tape pulls from blanket,
consult paper manufacturer. |
| Base stock picks. |
If serious, reject paper, change
to more lint or pick - resistant stock. |
| Pressure set too high for ink/
stock combination being used. |
Reduce impression pressure, repack
to manufacturer specifications. |
| Blankets is too tacky. |
Consult blanket manufacturer.
Treat blanket or change to a less tacky blanket.
Check blanket wash. |
| Ink is too tacky for stock being
run. |
Consult ink manufacturer to lower
tack of ink. |
| Problem
| |
Solution |
| 
PILING
Build o paper coating, lint or ink on rollers,
blankets or plates
| PAPER :
See PICKING / LINTING
INK : |
See PICKING / LINTING |
| Ink is water logged due to insufficient
body or tack. |
Reduce dampener settings. Consult
ink manufacturer. |
| Ink is poorly ground, contains a coarse
heavy pigment. |
Consult ink manufacturer. Have ink
reworked orreformulated. |
| Improper packing of cylinders or rollers
not set correctly. |
Check specifications and adjust it
necessary. |
| Problem
| |
Solution |
PLATE BINDING
(LOSS OF IMAGE) Part or all of image on plate
does not take ink
| MECHANICAL : |
|
| Excessive amount of lint being deposited on
place. |
Refer to PICKING/ LINTING |
| Excessive plate - to - blanket pressure causing
plate wear. |
Re-set to specification. Use packing gauge
to check pressure. |
| Improperly set ink and dampening form rollers. |
Roller could be to hard check durometer. Also
check setting; re-set if too much pressure exists. |
| Abrasive particles destroying image. |
Check ink grind, fountain solution, solvents,
etc. Replace all contaminated material. |
| CHEMICAL : |
|
| Too much acid in the fountain solution. |
Check pH/ conductivity and adjust to 4.0
- 4.5 pH. |
| Too much gum in fountain solution. |
Re - etch plate and rub up image areas with
press ink. Drain fountain solution and refill
with tap water. If image returns, replace tap
water with fountain solution containing less gum. |
| Plate cleaners and / or scratch removers
have dried on plate image. |
Always rinse plate thoroughly and immediately
after using such item. |
| Detergent remains or has somehow entered the
fountain system. |
Make sure that all parts that comes in contact
with cleaning detergent have been thoroughly rinsed
before reinstalling in press. |
| Ink will not adhere to image area due to excess
amount of fountain solution being accepted by
the ink. |
Reduce dampener setting to minimum, if problem
persist consult ink manufacturer. |
| Plate not completely developed; gum remains
on image areas. |
Wash plate. If problem persist have plate remade.
|
| Problem
| |
Solution |
PLATE WEAR
Gradual loss of image area.
| Improperly processed plates. |
Check plate developing process include Stouffer
scale. Check for excess Diazo on plate preventing
complete development. |
| Ink and / or water form rollers improperly
set. |
Adjust to manufacturer's specification. |
| Excessive linting. |
See PICKING / LINING. |
| Fountain solution too concentrated. |
Check conductivity and reduce to proper amount. |
| Improperly packed plate and blanket cylinders. |
Check with Colight or Baldwin guage and set
to manufacturer's specification. |
| Running plate far beyond their capabilities. |
Switch to higher quality plate which will result
in longer plate life. |
| Using extremely strong inks - starvation of
image area. |
Reduce strength of inks to improve plate lubrication. |
| Extremely poor grind of ink. |
Consult ink manufacturer to check ink grind. |
| Form rollers too hard. |
Replace form rollers. |
| Problem
| |
Solution |
REGISTER
After the press has beeb set for proper registration,
some condition prevention consistently good register,
either in the press running direction, or side
-to-side
| Register problems can be caused by poor alignment
of press, plate, blanket, paper or film.. |
If after checking these elements the problem
persists, contact our press supplier. |
| Problem
| |
Solution |
ROLLER STRIPPING
Rollers do not accept inks.
| Fountain solution too
acid. |
Check pH/ conductivity
level and adjust to 4.0 - 4.5 pH. |
| Too much water being run. |
Reduce dampener setting. |
| Desensitized metal vibrator rollers. |
Clean rollers, copperize, wash
thoroughly. Then ink rollers and wash again. |
| Glazed form roller. |
Remove rollers from press and
deglaze per manufacturer's procedures. Rinse thoroughly. |
| Excessive gum in fountain solution. |
Copperize rollers. Use less gum
in fountain solution. Too much gum combined with
too much acidity can cause gum to precipitate
on to rollers. |
| Ink too strong. |
Consult ink manufacturer for adjustment. |
| Ink too water resistant. |
Consult ink manufacturer for adjustment. |
|
| |
|
RUBBING AND SCUFFING
Printed ink film appears dry but exhibits poor
rub and / or scratch resistance when abraded
| Too much water run on job or paper
contains too much water. |
Reduce dampener settings. Change
paper. |
| pH of fountain solution too high. |
Check pH/conductivity and adjust to 4.0
- 4.5 pH. |
| Ink not fully dry. |
See DRYING. |
| Roughness of paper surface creates poor rub
between unprinted paper surface and printed paper
surface (e.g. some dull coat type stocks). |
Consult ink manufacturer to provide ink with
better rub resistance. |
| Too much ink. |
Lower level of ink carried. |
| Ink is not properly formulated or rub resistance. |
Consult ink manufacturer for adjustment. |
| Insufficient binding vehicle in ink. |
Consult ink manufacturer for adjustment. |
| Problem
| |
Solution |
SCUMMING
The non - image area of alithographic plate accepting
ink random area.
| Low alcohol content
in dampening system. |
Bring alcohol content
to correct concentration. |
| Glazed blanket, ink rollers, or
dampening rollers. |
Clean thoroughly and recondition
per manufacturer's instruction. |
| Excessive printing pressure. |
Make on - press adjustment to
proper pressures. |
| Ink body too greasy; ink spreading
in to non - printing area. |
Consult ink manufacturer to assure
ink is on standard reformulate if necessary. |
| Plate improperly exposed to light
after being allowed to dry. |
Desensitizer or remake plate. |
| High bichromated fountain solution. |
Check fountain solution and adjust
accordingly. |
| Ink too soft. |
Replace with stiffer ink or consult
ink manufacturer to reformulate if for heavier
body. |
| Fountain solution pH out of balance. |
Check fountain solution pH/
conductivity and adjust to 4.0 - 4.5 pH. |
| Poorly adjusted or warn dampeneing
rollers. |
Adjust pressure to specification;
replace cover. |
| Overheated ink rollers. |
Check for warn bearings, adjust
roller pressure if necessary. |
| Problem
| |
Solution |
SET - OFF / BLOCKING
SET - OFF - Ink transfer
to the back side of the sheet on top of it.
BLOCKING
Sheets in a bundle or load stick together
| Ink too slow setting. |
See DRYING. |
| Insufficient spray powder. |
Increase powder application. |
| Lift too heavy. |
Run shorter lifts; tray the lifts. |
| Rough handling of loads |
Do not drop or jack loads. |
| Problem
| |
Solution |
SLINGING
Ink being thrown from rollers or filaments
| Too much in on rollers. |
Make press adjustment
to decrease amount of ink carried. Consult ink
manufacturer to increase ink strength and carry
less ink on rollers. |
| Improper ink and water balance,
resulting in emulsification. |
Adjust ink an water balance. |
| Ink is too long in body. |
Consult ink manufacturer. |
| Rollers are incorrectly set or
in poor condition. |
Reset rollers based on manufactured's
specifications. Replace rollers if in poor condition.
|
| Problem
| |
Solution |
SLURRED OR DOUBLE IMAGE
Dots have shadowsm, and reverse letters fill in.
| SLURRED IMAGE - dots
appear elongated or smeared, occurs on a single
unit. |
|
| Over or under packed cylinders,
resulting in different speeds between cylinders,
causing slippage. |
Adjust packing to equalize diameters
of cylinders. |
| Lose, uneven or soft blanket. |
Tighten blanket clamps, adjust
packing or replace blanket. |
| Excessive play in gears and debearing
of plate and blanket cylinders. |
Adjust according to manufacturer's
specification. |
| Too much pressures between plate
and blanket cylinders when running smooth plates
at high speeds. |
Use "Kiss " impression,
check form roller stripe or uniformity and width. |
| Running too much ink on coated
stock. |
Reduce amount of ink, then adjust
water feed if necessary to maintain color density. |
| DOUBLE IMAGE - Second image appears
along side first; occurs on multiple units. |
|
| Improper slipper settings. |
Adjust packing to equalize diameters
of cylinders. |
| Unstable paper: paper is tanning
in successive units. |
Check ink / water balance;
adjust water to minimum possible. |
| Loose plate. |
Check plate and secure. |
| Loose blanket. |
Tighten blanket clamps, adjust
packing or replace blanket. |
| Problem
| |
Solution |
TINTING / TONING
Fine particles of ink transmitted by press water
dampener to non - image areas of plate
| Ink bleeding in to
fountain solution. |
Check concentration
of alcohol or alcohol substitute in fountain solution..
Consult ink manufacturer to reformulate . |
| Improper fountain solution concentration. |
Check pH/ conductivity and
adjust to 4.0 - 4.5 pH. |
| Improper ink and water balance. |
Adjust to proper ink and water
balance. |
| Too much pressure between plate
and blanket. |
Check and re- set to manufacturer's
specification. |
| Improper setting or durometer
of dampener or ink rollers. |
Check and re - set rollers to
manufacturer's specification; if rollers are old,
check durometer. |
| Ink not sufficiently water resistant. |
Consult ink manufacturer to be
sure ink is on-standard. Reformulate if necessary. |
| Plate improperly exposed, developed. |
Check platemaking procedure; correct
if necessary. |
| Prolonged use of a detergent,
wash - up solution. |
Wash up, remove detergent with
water or petroleum solvent and change solution. |
| Paper coating contaminating the
ink train |
Use low tack ink, low water setting,
and low pressure setting. |
| Problem
| |
Solution |
TRAPPING
Cannot achieve good color coverage
| Tack of inks out of sequence. |
Make sure inks are of successively
decreasing tacks. |
| Strength of ink improperly balanced. |
Each succeeding ink should carry
a heavier film for optimum trap. |
| Improper ink viscosities. |
In general each succeeding color
requires a lower viscosity ink. |
| Hue error or grey balance not
keyed to color separations. |
Have suppliers coordinate efforts. |
| Unequal press stability of links.
Ink tacks up quicker than preceding ink. |
Consult ink manufacturer to coordinate
stability of all ink color(s). |
| Ink contains additive that creates
a film preventing succeeing ink layers from adhering. |
Consult ink manufacturer. See
CRYSTALLIZATION. |
| Ink and water balance. |
See MOTTLED SOLIDS. |
| Poor ink release from blanket. |
Consult blanket and/or ink manufacturer. |
| Improper register causing poor
appearance. |
See MISREGISTER. |
| Process color prints do not match
supplied proofs. |
See INCONSISTENT COLOR REPRODUCTION
No. 2. |
|
|
|
