Direct Fast Scarlet 4BS (Direct Red 23)

1. Product Overview

Direct Fast Scarlet 4BS, also known as Direct Red 23, is a bright scarlet azo direct dye. It is widely applied in the textile and paper industries, providing vivid red shades with excellent     level-dyeing properties. With strong affinity to cotton and viscose, it is a popular choice for bulk production of affordable red tones.

• CI Name & No.: Direct Red 23

• CAS No.: 3441-14-3

• Category: Direct dye (azo type)

• Appearance: Scarlet red powder

• Shade: Brilliant scarlet red, high tinctorial strength

• Key Features: Good water solubility, uniform shade, cost-effective

2. Technical Specifications

3. Performance & Benefits

• Bright scarlet shade – brilliant, eye-catching red

• Good level-dyeing – uniform coloring across cotton & viscose fabrics

• Strong build-up – suitable for both medium and deep shades

• Flexible blending – can be combined with orange or violet direct dyes for shade adjustment

• Cost-effective – widely used in paper and textile coloring

4. Applications

• Textiles: Cotton, viscose, rayon, and blends

• Paper: Brilliant red coloring for packaging, tissue, and specialty paper

• Leather: Red-orange tones for finishing leather goods

• Inks: Can be applied in water-based ink formulations

5. Quality & Compliance

• COA with every batch (shade, strength, purity, moisture)

• APEO-free, conforms to EU restricted azo dye regulations

• Heavy metals controlled to international safety standards

• SDS available in English and other languages

6. Packaging & Logistics

• Standard packaging: 25 kg fiber drums / cartons with inner PE bag

• MOQ: 100 kg (trial order) / 1 MT (bulk order)

• Delivery: 7–10 days ex-warehouse

• Shelf life: 24 months in dry, ventilated storage

• Main ports: Tianjin / Qingdao / Shanghai

7. Samples & Support

• Free lab samples (10–50 g) available

• Courier cost borne by customer (DHL / UPS account preferred)

• Technical support: shade matching & application guidance

8. Related Products

• Direct Red FGG (Direct Red 224) – bright red direct dye, close shade range

• Direct Red BWS (Direct Red 243) – another red direct dye for cotton & viscose

• Direct Orange S (Direct Orange 26) – orange direct dye often combined with scarlet for warm shades