Acrilic, Catyonic, Basic Dyes

What Acrylic Dyes Are

• Definition: Acrylic dyes are cationic (basic) dyes designed to bond strongly with acrylic fibers.

• Chemistry: They are positively charged dye molecules that attach to the negatively charged sites in acrylic polymers.

• Form: Supplied as powders or concentrated liquids, often with strength indicators (% values).

How Dyeing Is Done

• Preparation: Acrylic fibers are cleaned and sometimes pre‑treated to improve dye uptake.

• Dye Bath:

  • Dyes are dissolved in water with auxiliaries (leveling agents, retarders).

  • Temperature is raised (often 95–105°C) to open fiber pores.

  • The cationic dye molecules penetrate and fix onto the fiber.

• Fixation: Strong ionic bonds form between dye and fiber, giving good fastness.

• After‑Treatment: Fibers are rinsed, neutralized, and sometimes treated with softeners.

Why Acrylic Dyes Are Preferred

• Affinity: Excellent bonding to acrylic fibers, ensuring bright and durable shades.

• Color Range: Wide palette — vivid yellows, reds, blues, greens, and deep blacks.

• Fastness: Good resistance to washing, light, and perspiration.

• Efficiency: High dye uptake, reducing waste and improving cost‑effectiveness.

• Versatility: Suitable for fashion textiles, upholstery, carpets, and blends.

Definition

• Cationic dyes are also known as basic dyes.

• They are positively charged dye molecules that bond strongly to fibers with negatively charged sites.

• They are especially suitable for acrylic fibers (polyacrylonitrile), which have anionic groups that attract cationic dye molecules.

Applications

• Textiles: Acrylic fibers, modacrylic blends, some modified polyesters.

• Products: Knitwear, upholstery, carpets, decorative fabrics.

• Specialty: Often chosen when bright, brilliant shades are required.

Dyeing Process

1. Preparation: Fibers are cleaned and sometimes pre‑treated.

2. Dye Bath:

   • Dye is dissolved in water with auxiliaries (leveling agents, retarders).

   • Temperature is raised (typically 95–105°C) to open fiber pores.

   • Cationic dye molecules penetrate and attach to the fiber.

3. Fixation: Strong ionic bonds form, ensuring durability.

4. After‑Treatment: Rinsing, neutralization, and softening.

Advantages

• Brilliant Colors: More vivid than many other dye classes.

• High Affinity: Strong bonding to acrylic fibers, giving excellent uptake.

• Durability: Good fastness to washing, light, and perspiration.

• Efficiency: High exhaustion rates reduce waste and improve cost‑effectiveness.

Considerations

• Rapid Uptake: They bind quickly, which can cause uneven dyeing if not controlled.

• Solution: Careful temperature control and use of auxiliaries to ensure level shades.

ACRYLIC DYES (BASIC, CATIONIC DYES)

• 💛 BETACRYL BRILL. FLAVIN YELLOW 10-GFF %300

• 🟡 BETACRYL OREMIND N %100

• 💛 BETACRYL YELLOW X-8GL %250

• 💛 BETACRYL G. YELLOW X-GL %400

• 💛 BETACRYL YELLOW 5 GL %200

• 🟠 BETACRYL CHRYSOIDINE G %100

• 🔴 BETACRYL RED X-GRL %400

• 🔴 BETACRYL RED X-5GN %400

• 🔴 BETACRYL RED X-GTL %200

• 🟣 BETACRYL MAGENTA CONC

• 🟣 BETACRYL RED VIOLET 3R %300

• 🔵 BETACRYL BLUE X-GRL %300

• 🔵 BETACRYL BLUE X-GRL %400

• 🔵 BETACRYL TURKISH BLUE X-GB %200

• 🔵 BETACRYL BLUE GRF %200 Ed

• 🔵 BETACRYL NAVY BLUE 2RN %200

• 🟢 BETACRYL GREEN 4 %100

• ⚫ BETACRYL BLACK X-FBL %300

• ⚫ BETACRYL BLACK FDL %200

• ⚫ BETACRYL BLACK SD-FDL %200