KODAK

KODAK COLOR NEGATIVE

C-41 FILM PROCESSING KIT
C-41Processing Instructions

This kit will process all conventional C-41 compatible color negative films. Chromogenic B&W films may also be processed. This kit is a non replenisher kit that is designed for small tank and rotary tube processing.

KODAK C-41 Negative Developing kit is the premier chemical processing kit for color negative films in rotary processors and small tanks. All of the processing chemicals are concentrates. Actual number of rolls that can be processed depends on individual processing considerations.

Safety Data Reference:
Developer 1ASDS# CAT 519 9005A 1BSDS# CAT 519 9005B 1CSDS# CAT 519 9005C Bleach 2ASDS# CAT 5199039A 2BSDS# CAT 5199039B Fixer 3SDS# CAT 519 9047 Final Rinse 4SDS# CAT 519 9062

1. KODAK C-41 Film Processing Kit Contents

Process Chemical
Concentrate
1 L 2.5 L 5 L
Developer 1ADeveloper A 75.2 ml 188 ml 376 ml
1BDeveloper B 17.52 ml 43.8 ml 87.6 ml
1CDeveloper C 37.84 ml 94.6 ml 189.2 ml
Bleach 2ABleach A 200 ml 500 ml 1000 ml
2BBleach B 400 ml 1000 ml 2000 ml
Fixer 3Fixer 200 ml 500 ml 1000 ml
Final Rinse 4Final Rinse 9 ml 22.5 ml 45 ml

2. Making Working Solutions

To make: Process
Step
Water Part A Part B Part C Total
1L Developer 870.24 ml 75.2 ml 17.52 ml 37.84 ml 1000 ml
Bleach 400 ml 200 ml 400 ml - 1000 ml
Fixer 800 ml 200 ml - - 1000 ml
Final Rinse 991 ml 9 ml - - 1000 ml
2.5L Developer 2175.6 ml 188 ml 43.8 ml 94.6 ml 2500 ml
Bleach 1000 ml 500 ml 1000 ml - 2500 ml
Fixer 2000 ml 500 ml - - 2500 ml
Final Rinse 2477.5 ml 22.5 ml - - 2500 ml
5L Developer 4351.2 ml 376 ml 87.6 ml 189.2 ml 5000 ml
Bleach 2000 ml 1000 ml 2000 ml - 5000 ml
Fixer 4000 ml 1000 ml - - 5000 ml
Final Rinse 4955 ml 45 ml - - 5000 ml

Smaller amounts of working solutions can be mixed, but careful attention must be paid to the mixing ratios.

For 500 ml: divide 1L volumes by 2. Example: 500 ml Fixer = 400 ml water + 100 ml concentrate.

Chemistry can be used one-shot or replenished with the appropriate KODAK Color Negative replenisher solutions.

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3. Standard Processing Steps

Rotary Tube Processors

Solution/Step Time*
(min:sec)
Temperature
°C (°F)
Optional Warm-Up† 2:00 - 6:00 38 - 45 (100 - 113)
COLOR NEGATIVE Developer ‡3:15 37 - 39 (99 - 102)
COLOR NEGATIVE Bleach 6:30 24 - 38 (75 - 100)
Wash 1:30 24 - 41 (75 - 105)
COLOR NEGATIVE Fixer 6:30 24 - 38 (75 - 100)
Wash 3:15 24 - 38 (75 - 100)
COLOR NEGATIVE Final Rinse§ 1:30 24 - 38 (75 - 100)
Dry As needed 20 - 60 (68 - 140)

* Times include a 10-second drain time at the end of each step. Solution volume depends on the type of processor.

† Tube is loaded with film and ready for processing. Do not immerse the film in a warm water pre-soak. Warm-up step is done by warming the outside of the tube in a tempered water bath.

‡ Determine the correct time for your processor by running a test with your tube.

§ If final rinse foaming in the tube is a problem, you can do the final rinse of the film in a separate tank.

Small Tank

Solution/Step Time*
(min:sec)
Temperature
°C (°F)
Comments
Developer 3:15 37 - 39
(99 - 102)
Initial agitation for 30 seconds, followed by 2 seconds of agitation every 15 seconds.
Bleach 6:30 24 - 41
(75 - 105)
Initial agitation for 30 seconds, followed by 2 seconds of agitation every 30 seconds.
Wash 1:30 24 - 41
(75 - 105)
Use running-water wash at a rate that will fill tank every 4 seconds. Or fill tank with water, agitate for 5 seconds, and dump. Repeat cycle throughout wash time.
Fixer 6:30 24 - 41
(75 - 105)
Initial agitation for 30 seconds, followed by 5 seconds of agitation every 30 seconds.
Wash 3:15 24 - 41
(75 - 105)
Repeat procedure used for first wash.
Final Rinse 1:30 24 - 41
(75 - 105)
Initial agitation for 30 seconds; no further agitation required.
Dry As needed 24 - 43
(75 - 110)
Remove film from reel, and hang film to dry in dust-free place or drying cabinet. Attach film clip to top to hang it, and add weighted clip to bottom to prevent curl.
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Agitate the tank by turning the tank over (inverting it) with a slight rotation (quarter turn), then return the tank to an upright position. Do this at a rate of one agitation cycle per second.

4. Storage Conditions

Chemical Concentrate
Once Opened
Working Solution
Color Developer 12 weeks 1 week
Bleach 24 weeks 24 weeks
Fixer 24 weeks 24 weeks
Final Rinse Indefinite Indefinite
Care should be taken to store the solutions in clean bottles with as much air expelled as possible. Keep concentrates in their original packaging when mixing less than the full volume of the kit.

5. Safety and Environmental

Each KODAK C-41 kit complies with environmental regulations and each component is labelled accordingly. In addition, SDS's are available for each component that discuss safe disposal of the chemicals and more details on any chemical hazards. Consult your dealer for the latest SDS.

6. Troubleshooting

Fault Possible Cause Remedy
Negative too dark Overexposure in camera
Developing time of color developer too long
Contamination of color developer
Check camera and exposure
Shorten developing time by 15-30s
Rinse equipment and reels thoroughly
Negative too light Underexposure in camera
Prewash/Prewarming of the tank has been omitted
Developing time of color developer too short
Check camera and exposure.
Add a prewash time of 3 to 5 min. to the program
Extend developing time by 15-30s
Uneven color areas, streaks and stripes Insufficient filling quantity
Prewash has been omitted
Color developer was poured in too slowly
Check filling amount
Add a prewash time of 3 to 5 min. to the program.
Pour in the color developer quickly
Color fog Mixing vessels of the processor are not clean
Contamination of the developer by other chemicals.
Use individual mixing vessels and mixing rods for each bath
Drying spots on the dry film Tap water is too hard when preparing the stabilizer bath Mix tap water with distilled or demineralized water in the proportion 1:2
Negatives appear magenta and print cyan Insufficient bleach and fixing Re-bleach and fix the film and then re-dry
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