Acid Dyes
Scarlet Red 3R
A vivid red acid dye for wool, silk, and polyamide fibres.
Overview
Scarlet Red 3R is an azo acid dye giving a bright, clean red in aqueous solution. Like other acid dyes, it applies from an acidic bath and bonds to the protonated amino groups in protein and polyamide fibres, which is what gives acid dyes their characteristic brightness and level dyeing where cellulosic dyes have no affinity. It is widely used across wool, silk, and nylon dyeing, alongside paper and leather colouration.
Colour Reference
Appearance, dilution, and application
Appearance
Dilution
Application
Applications
Where it is used
- Wool and silk dyeing
- Polyamide (nylon) fibres
- Paper and paper products
- Leather colouring
Benefits
Why mills choose it
Bright, clean red shade
Good affinity for wool, silk, and polyamide
Level dyeing behaviour
Suitable for paper and leather coloration
Identity & Data
Technical data
Typical values. For a full technical datasheet or safety data sheet, get in touch.
- C.I. Name
- C.I. Acid Red 18
- C.I. Number
- 16255
- CAS Number
- 2611-82-7
- Molecular Weight
- 604.47
- Molecular Formula
- C20H11N2Na3O10S3
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