Direct Red BWS (Direct Red 243)

1. Product Overview

Direct Red BWS, also known as Direct Red 243, is a brilliant bluish-red azo direct dye. It is widely used in the textile and paper industries, offering level dyeing on cotton, viscose, and blends. With strong affinity for cellulose fibers, it provides vivid reddish shades at economical cost, making it a popular direct dye for bulk applications.

• CI Name & No.: Direct Red 243

• CAS No.: 5413-75-2

• Category: Direct dye (azo type)

• Appearance: Reddish powder

• Shade: Brilliant bluish-red with strong tinting strength

• Key Features: Good solubility, strong build-up, uniform shade, affordable

2. Technical Specifications

3. Performance & Benefits

• Bright bluish-red shade – vivid, eye-catching color for textiles & paper

• Excellent level-dyeing – ensures uniform results across fabrics

• Good penetration – suitable for both medium and deep shades

• Compatible with other direct dyes – useful for shade adjustments

• Cost-effective – widely applied in large-scale industries

4. Applications

• Textiles: Cotton, viscose, rayon, and blends

• Paper: Bright red coloring for tissue, packaging, and printing paper

• Leather: Reddish tones for leather finishing

• Inks: Used in water-based ink formulations

5. Quality & Compliance

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

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

• Heavy metals controlled within international limits

• 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) / 1 MT (bulk order)

• Delivery: 7–10 days ex-warehouse

• Shelf life: 24 months (store in dry, ventilated conditions)

• Main ports: Tianjin / Qingdao / Shanghai

7. Samples & Support

• Free samples (10–50 g) available

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

• Technical support: shade matching, dyeing process optimization

8. Related Products

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

• Direct Red 23 (Direct Fast Scarlet 4BS) – scarlet red direct dye, complementary within the red family

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