Acid Orange II （Acid Orange 7）

1. Product Overview

Acid Orange II is a bright orange monoazo acid dye widely used for dyeing silk, wool, nylon, leather, and paper.

• CI Name & No.: Acid Orange 7

• CAS No.: 633-96-5

• Category: Acid dye

• Appearance: Orange powder

• Shade: Bright reddish-orange

• Key Features: Good solubility, excellent leveling, brilliant shade, cost-effective

• Markets: Textiles, leather, paper dyeing, and inks

2. Technical Specifications

3. Key Features & Benefits

• Brilliant reddish-orange shade with strong visual appeal

• Excellent leveling → uniform dyeing on wool, silk, and nylon

• Good compatibility with other acid dyes → suitable for shade matching

• Stable performance in textile and leather industries

• Versatile → can be used in paper and ink formulations

4. Applications

• Wool & wool blends — bright orange shade in yarn and fabric dyeing

• Silk — rich reddish-orange tone

• Nylon (polyamide fibers) — good affinity and uniform dyeing

• Leather — finishing applications with warm orange shade

• Paper & inks — widely used in colored paper and printing inks

5. Quality & Compliance

• COA provided with each batch (Shade, Strength, Moisture, pH)

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

• SDS available (English; other languages upon request)

6. Packaging & Logistics

• Standard: 25 kg P.W. bag / carton / iron drum

• Bulk: 500–1000 kg jumbo bags available

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

• Delivery: 7–10 days from warehouse

• Shelf life: 24 months (cool, dry storage)

• Ports: Tianjin / Qingdao / Shanghai

7. Samples & Support

• Free laboratory samples (10–50 g) available

• Courier freight to be borne by customer (DHL/UPS/FedEx account)

• Technical support: shade matching & dyeing process optimization

8. Related Products

• Acid Scarlet 3R (Acid Red 18) – acid red dye for wool, silk, nylon

• Acid Scarlet GR (Acid Red 73) – acid red dye with bright scarlet shade for textiles and leather

• Acid Gold Yellow G (Acid Yellow 36) – golden-yellow acid dye for wool, silk, and nylon