KODAK PRECISION LINE Duplicating Film LPD4
KODAK PROFESSIONAL PRECISION LINE Duplicating Film LPD7

Contents

Instruction Sheet
Data Sheet

Instruction Sheet

  • Moderately high contrast, orthochromatic film.
  • Projection or contact speed.
  • Direct-image duplication of printed-circuit masters, engineering drawings, and line negatives generated on photoplotters.
  • Low matte level.
  • Dyed gel backing (green) for halation protection and to permit exposure through the base when required.
  • Dimensionally stable ESTAR Base and ESTAR Thick Base.
  • Suitable for lith or rapid access development.

These films are suitable for making one-step duplicates — either to the emulsion or through the base — using a process camera, enlarger, or contact printer. They are intended for duplicating printed-circuit masters, engineering drawings, maps, renderings, or similar positive or negative line copy. They are also suitable for printed circuit board positives on vector-type photoplotters, and can be used for the initial reduction in multiple-reduction systems.

Use a KODAK 1A Safelight Filter / light red, in a suitable safelight lamp equipped with a 15-watt bulb. Keep the film at least 1.2 metres (4 feet) from the safelight.

Keep unexposed film and processed film in a cool, dry place. Process film as soon as possible after exposure.

These films can be exposed by either projection or contact methods in a photoplotter, process camera, enlarger, or contact printer. Since this is a direct-reversal film, an increase in exposure or a decrease in development will cause a reduction in image density.

  • Photoplotter Exposure:
    The exposure required is a function of both the photoplotter characteristics and development conditions. To determine the optimum exposure, trials will need to be run.
  • Line or Camera Exposure:
    For a same-size (1:1) line reproduction with two 1500-watt pulsed-xenon lamps at 0.9 metre (3 feet) from the copyboard, use the following time for trial exposures: 8 seconds at f/22

    Note: It is recommended that the manufacturer of the pulsed-xenon or quartz-halogen lamps be consulted for safety information pertaining to ultraviolet radiation and ventilation requirements due to ozone generation.

  • Contact Exposure:
    Recommended exposures should be used as test guides. Expose a contact using a variable voltage point-source 100-watt lamp, set at 16 volts at a distance of 1.5 metres (5 feet) from the exposure plane. Provide approximately 4.0 footcandles of illumination (43.0 lumens/sq metres). Use the following times for trial exposures:

    Original

    Exposure Time[1]

    Film

    4 to 8 seconds

    Vellum

    5 to 10 seconds

    [1] The indicated time is for exposure to the emulsion, with lith development. Increase by 25% for exposure through the base; by 60% for non-lith development; or by 100% with both changes.

  • Relative Exposure Index
    These indexes are provided primarily as indicators of the relative speed of this film when compared with other Kodak graphic arts films or KODAK PRECISION LINE Films using pulsed-xenon, tungsten, or quartz-halogen light sources.

    System

    Developers

     

    Lith

    Non-Lith

    ISO

    5

    3.2

    DIN

    8

    6

Notice: Observe precautionary information on product labels and on the Material Safety Data Sheets.

MECHANIZED PROCESSING:

The recommended starting points for optimum results in a deep tank processor are:

KODALITH Blender Concentrate

1 min, 30 sec at 27°C (80°F)

KODAK ULTRALINE Developer and Replenisher

80 sec at 27°C (80°F)
60 sec at 29.5°C (85°F)

The recommended starting points for optimum results using a rapid access processor are:

KODAK ACCUMAX Rapid Access Developer and Replenisher

30 seconds at 35°C (95°F)

KODAK ULTRALINE Developer and Replenisher

45 sec at 32°C(90°F)
38 sec at 35°C (95°F)

Please contact your Kodak representative for starting point recommendations for other Kodak lith and rapid access developers.

Use KODAK Rapid Fixer and Replenisher (diluted 1:3).

Replenishment Rates

Developer

Fixer

465 mL/sq m
(0.30 mL/sq in.)

540 mL/sq m
(0.35 mL/sq in.)

If you have questions or need assistance, contact your local Kodak representative.

The contents of this publication are subject to change without notice.

Data Sheet

Support

Dimensionally stable support:

LPD4

4-mil (0.004-in., 0.10 mm)

ESTAR Base

LPD7

7-mil (0.007-in., 0.18 mm)

ESTAR Thick Base

Dimensional Stability

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 and aging. The absence of solvent in ESTAR Base is one of the reasons why ESTAR Base films show excellent dimensional stability. The dimensional properties of ESTAR Base may vary slightly in different directions within a sheet; the differences that may exist, however, are not always equal in both the length and width directions.

Differences in size change between length and width should be within 10% of each other.

Determined in accordance with ISO Standard, see TI1450 for footnotes.

Thermal Coefficient of Linear Expansion —

Unprocessed or processed:

0.0018% per degree C

 

0.001% per degree F

Humidity Coefficient of Linear Expansion —

LPD4

Unprocessed:

0.0020% per % RH

 

Processed:

0.0017% per % RH

LPD7

Unprocessed:

0.0015% per % RH

 

Processed:

0.0013% per % RH

Processing Dimensional Change —

Dependent upon drying conditions.

Reciprocity

With recommended processing, the reciprocity speed change is negligible (1/3-photographic stop or less) within exposure range of 1/1000 second 100 seconds; there is no change in contrast.

Curves

These graphs are designed to be printed in landscape mode. They will print properly on most printers in their current page set-up of 100%. However, some printers may require adjustments to the browser page set-up in order to have the graph print on a single 8 1/2 x 11 inch sheet of paper.

Characteristic

Curve KODALITH Blender Concentrates, Tungsten
Curve KODAK 55 Developer, Machine, Tungsten
Curve KODAK 55 Developer, Tray1
Curve KODALITH Blender Concentrates, Xenon Flash
Curve KODAK 55 Developer, Machine, Xenon Flash

Spectral Sensitivity

Curve KODALITH Blender Concentrates

If you have questions or need assistance, contact your local Kodak representative.

The contents of this publication are subject to change without notice.

Kodak, Precision Line, Accumax, Dektol, D-11, Estar, Ultraline, Kodagraph, and Kodalith are trademarks.

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Footnotes\Notices

1 Although tray recommendations for KODAK 55 Developer have been replaced by KODAK RA 2001 Developer, the curve remains representative of tray processing.

NOTICE: The data in this publication represent product tested under the conditions of exposure and processing specified. They are representative of production coatings, and therefore do not apply to a particular box or roll of photographic material. They do not represent standards or specifications that must be met by Eastman Kodak Company. The company reserves the right to change and improve product characteristics at any time.

TI1080 • Revised 3-02