Fujifilm Superia Color Paper Coupler Concentrate
Fujifilm Superia coupler concentrate is a precise chemical mix for color negative photographic paper, enabling vibrant dye images in RA-4 processing. Diluted for use in automatic processors, it's essential for retail photo labs. HTS 3707.90.32.20 applies as a chemical preparation specifically for color negative paper couplers.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If intended for silver halide diffusion transfer processes
Diffusion transfer couplers have unique chemistry, warranting a distinct subheading.
If the primary function is synthetic organic coloring matter
Dye couplers without photo-specific formulation may classify as pigments rather than photo chemicals.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Declare exact concentration and dilution ratios in entry docs to confirm it's a 'ready for use' preparation
• Test for hazardous material status (corrosive liquids common in couplers) and prepare proper hazmat shipping papers
• Avoid common error of classifying with films; couplers are paper-specific chemicals under Chapter 37
Related Products under HTS 3707.90.32.20
Kodak Color Negative Paper Coupler Solution
This is a specialized chemical coupler formulation designed specifically for developing color negative photographic paper in darkroom processing. It facilitates the formation of color images by reacting with exposed silver halide emulsions during the color development stage. Classified under HTS 3707.90.32.20 as a coupler for color negative photographic paper, part of unmixed chemical preparations for photographic uses.
B&H Darkroom Color Coupler for Negative Paper
B&H's professional-grade color coupler is formulated for use in color negative photographic paper processors, ensuring sharp dye images. It's sold in convenient retail bottles for amateur and pro photographers. HTS 3707.90.32.20 covers this as a specific coupler chemical preparation for photographic paper.
Ilford Ilfochrom Coupler for Color Negative Paper
Ilford's Ilfochrom coupler is a ready-to-use chemical preparation optimized for high-quality color negative paper processing in professional labs. It ensures accurate dye formation in the C-41 process for negative-to-positive prints. Falls under HTS 3707.90.32.20 due to its role as a dedicated coupler in color negative photographic paper workflows.
Agfa Color Negative Paper Coupler Kit
Agfa's coupler kit contains measured portions of chemicals for color negative photographic paper development, packaged for retail darkroom use. It supports consistent color reproduction in professional printing. Classified in HTS 3707.90.32.20 for its dedicated coupler function in negative paper processes.