TECHNICAL DATA / INDUSTRIAL MATERIALS GROUPPc

KODAK ACCUMAX Photoplotter
Film APR7

Printed Circuit
Board Products—High Complexity PCB Starts With the Right Phototools—June 2019• TI-2648

Creating high complexity phototools starts with the rightfilm. Now from Kodak, you get hard line edge quality andsuperior dimensional stability with KODAK ACCUMAX
Photoplotter Film APR7. APR7 Film uses the latest
Integrated Booster Technology (IBT processing)—technology pioneered by Kodak. APR7 Film is specificallydesigned for PCB phototool creation, and pre-conditionedby Kodak in a clean-room environment to make it "ready touse" right out of the box. Some of its outstanding featuresare:• Extremely sharp line edge quality with the latest in
Integrated Booster Technology processing(Recommended for processing in IBT compatible
developers such as KODAK ACCUMAX Rapid Access
Developer and Replenisher)• Superior dimensional stability with Kodak’s exclusive
one-sided gel coating structure—delivers low
humidity coefficient of linear expansion of 0.0009%
per % RH
• Ready to use—pre-conditioned at the factory to better
match the relative humidity of the photoplotter
environment (50% RH)• Durable emulsion structure for longer phototool life
• Improved fine-line image consistency• Coated on specially manufactured low-inclusion
ESTAR support (0.007-inch, 0.18 mm)• Permanent anti-static performance to resist theattraction of dust and dirt
• Excellent scratch and abrasion resistantovercoat—resists photoabrasion• Contains ultra-fine matte on the emulsion side to
improve handling and vacuum draw-down to photoresist• Dual red sensitivity at 633 nm and 670 nm for use
with photoplotters using helium-neon (HN) orred-laser-diode (RLD) exposing sources©Eastman Kodak Company, 2019

APR7 Film is designed for the use with the following
photoplotters:
Manufacturer*Model

UCAMCO / Barco

BG-7300, BG-7400, BG-3800, BG-3900,
BG-7500, SilverWriter, Calibr8tor

Dainippon Screen

RG 7000, RG 7500, RG 8000, RG 8500

First EIE SA

RP 200, RP 300, RP 500, RP 700, RP 800

UCAMCO / Gerber Crescent 30, Crescent 40
Lavenir

PULSAR 8000SE

Orbotech

LP 7008 and LP 9008, LP-9

* Products are trademarks of the respective manufacturer.

SUPPORT
Dimensionally stable support.
7-mil (0.18 mm)

ESTAR Thick BaseDARKROOM RECOMMENDATIONS
Darkrooms can be illuminated using an EncapSulite
T20⁄ND0.75 “cyan” filter. The light should be at least 4feet (1.2 metres) from any area where the film will behandled. Where possible, the safelights should be locatedas to maximize room lighting for safety but minimize direct
exposure to the film surface itself. The farther away thelights are located from the film, the greater the margin ofsafety. This filter should provide up to 4 minutes of
acceptable safelight performance, under the statedconditions.
European Office:

US Address:

EncapSulite International Ltd.
Frau Karia Hoppe,
EncapSulite Sales
Postfach 900-3285
Koln 90 Germany

EncapSuliteInternational Inc.
505 Julie Rivers Road
#170
Sugar Land, TX 77478-2848

STORAGE AND HANDLING
Keep unexposed film and processed film in a cool, dryplace. Process film as soon as possible after exposure.

PROCESSING
Notice: Observe precautionary information on product labels and on theMaterial Safety Data Sheets.

EXPOSURE
The exposure required is a function of both thephotoplotter characteristics and development conditions.
Optimum exposure must be determined by means of a trial
exposure series following the equipment manufacturer's
recommended procedures. The calibration test will
determine optimum exposure for required line width andD-max. The resulting image quality and D-max can be
influenced by variations in time and temperature ofdevelopment. Many customers may find that a change tothe recommended time and temperature will provide amore suitable result for their particular exposing
conditions.

KODAK
ACCUMAX Rapid
Access Developerand Replenisher

KODAK Rapid
Fixer andReplenisher

Note: For Gerber Crescent 30 and 40 models, use a neutral
density filter of 1.7 to 1.8 ND.

Size

CAT No.

2x5 Lconcentrate

662 0009(US, Canada, andGreater Asia)

1x5L
2x5L
concentrate

Dilution

527 2869 (2x5L)
662 0082 (1x 5L)

1:2 withwater(Europe, Middle
East, and Africa)

2x5 L
concentrate

662 0017(Us, Canada, andGreater Asia)

1 x 10 L
concentrate

378 1192(Europe, Middle
East, and Africa)

1:3 withwater

Recommended Starting Points
Developer Temperature

RECIPROCITYTime

ACCUMAX Rapid Access Developer

With recommended processing, the reciprocity speed
change is negligible (1⁄3-photographic stop or less) within
exposure range of 1⁄1000 second to 1 billionth second,
there is no change in contrast.

35°C (95°F)*

45 seconds*

38°C (100°F)

30 seconds

32°C (90°F)

60 seconds*Optimum starting point recommendation for ACCUMAX Developer.

Fixer: Use a fixer temperature of 32 - 35°C (90 - 95°F).
Replenishment Rates:
Developer*

Fixer†

350 mL / sq m

540 mL / sq m

* Anti-oxidation replenishment rates should be set to achieve one tankturnover per week.
† As a starting point, do not add hardener to the fixer. If abrasion or transport

problems occur in processing, a small amount of KODAK Rapid Fixer, Part B
can be added(CAT No. 173 3013, 72-ounce bottle). Start with 8 mL of Part B
per litre of well mixed, working strength fixer, and increase as necessary to amaximum of 25 mL per litre. Add Part B slowly and mix thoroughly.

Recommendations at Setup:✔

Confirm processing time and temperature with calibrated
stopwatch and digital thermometer. Adjust control settings
to achieve the desired set points.

✔

Measure replenishment rates with a graduated cylinder orbeaker. Adjust replenishment settings to deliver required
volume of developer and fixer for sheet size being used.

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KODAK ACCUMAX Photoplotter Film APR7 • TI-2648

Dimensional stability is an all-inclusive term. In
photography, it applies to size changes caused by changes
in humidity and in temperature, and by processing andaging.
Generally, humidity has the greatest impact on thedimensional change of phototools. There are two criticalfactors:
1. Humidity difference between the film package and theroom environment
2. Humidity variability during the contact printing
operation
APR7 Film is advantaged in both aspects. Because APR7
Film is pre-conditioned by Kodak to 50% RH, it isready-to-use right out of the box. And the low humidity
expansion coefficient of APR7 Film helps it resist sizechange due to humidity variability.
The dimensional properties of ESTAR Base may varyslightly in different directions within a sheet. Differences insize change between length and width should be within 10percent of each other.

CURVES
Spectral Sensitivity Curve
1.0

Effective Exposure: 10 seconds
Densitometry: Diffuse visual
0.0

LOG SENSITIVITYDIMENSIONAL STABILITY-1.0

D=0.6>D-min
-2.0

-3.0
250

300 350

400450500

550

600 650

700750WAVELENGTH (nm)*Sensitivity = reciprocal of exposure (erg/cm ) required
to produce specified density
F010_323AA

Characteristic Curve

Thermal Coefficient of Linear Expansion:

6.0

Unprocessed or processed

5.00.001% per degree F
0.0018% per degree C

Humidity Coefficient of Linear Expansion:
0.0010% per % RH

Processed

0.0009% per % RH

Processing Dimensional Change:
Dependent upon drying conditions.
Recommended dryer
temperature starting point

35°C (95°F)

4.0

DENSITY

UnprocessedExposure: Laser Diode (3LS Ch28)
Development: KODAK ACCUMAX Rapid Access
Developer and Replenisher, 1:2, 95 F (35 C), 45 seconds

3.0

2.0

1.0

0.0
-3.0
F010_0322AC-2.0-1.0

0.0

1.0

LOG EXPOSURE (lux-seconds)

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KODAK ACCUMAX Photoplotter Film APR7 • TI-2648

KODAK ACCUMAX Photoplotter Film APR7
MORE INFORMATION
For the latest version of technical support publications for Kodak
products, visit Kodak on-line at:
http://www.kodak.com/go/PCBproducts
If you have questions about Kodak products, call Kodak.
In the U.S.A.:
1-800-242-2424, Ext. 19, Monday–Friday
9 a.m.–7 p.m. (Eastern time)
In Canada:
1-800-465-6325, Monday–Friday
8 a.m.–5 p.m. (Eastern time)
From outside the US/Canada: 1-585-724-4000

Note: The Kodak materials described in this publication for
use with APR7 Film are available from dealers who supply
Kodak products. You can use other materials, but you may
not obtain similar results.

NOTICE: While the sensitometric data in this publication are typical of production coatings, they do not
represent standards which must be met by Kodak. Varying storage, exposure, and processing conditions willaffect results. The company reserves the right to change and improve product characteristics at any time.

Kodak, Accumax, and Estar are trademarks.

Revised 6-19
KODAK ACCUMAX Photoplotter Film APR7KODAK Publication No. TI-2648

Industrial Materials GroupEASTMAN KODAK COMPANY • ROCHESTER, NY 14650-0505