Seed coating colorants are specialized pigments and dyes applied to seeds along with binders or protective coatings. Their primary roles are visual identification, quality control, safety differentiation, and improved product handling. These colorants are used in agriculture, horticulture, and seed treatment operations.

Functions of Seed Coating Colorants

1. Identification

Colorants allow easy recognition of:

• Different seed varieties

• Treated vs. untreated seeds

• Seed lots or production batches

2. Safety

Bright colors help ensure treated seeds are not mistaken for food or feed.

3. Uniform Appearance

Colorants improve the visual quality of seeds, masking natural discoloration.

4. Coating Performance

They integrate with polymer coatings and film coatings to:

• Improve adhesion

• Enhance uniformity

• Modify surface properties

5. Branding

Custom colors allow seed producers to maintain consistent brand identity.