Acid Blue 80 has several applications in various industries. Here are some of its common uses:

1. Textile Industry: Acid Blue 80 is widely used for dyeing natural and synthetic fibers in the textile industry. It is specifically used for dyeing protein-based fibers such as wool, silk, and nylon. The dye provides a vibrant blue color and exhibits good colorfastness.

2. Paper Industry: Acid Blue 80 is employed in the paper industry for dyeing paper and board products. It can be used to add color to paper for decorative purposes or to create specific effects in paper manufacturing.

3. Leather Industry: Acid Blue 80 finds application in the leather industry for dyeing leather products such as shoes, handbags, and garments. It helps in achieving a desirable blue color on leather surfaces.

4. Ink Manufacturing: Acid Blue 80 is used in the production of inks, including water-based inks. It is chosen for its ability to provide a bright blue color and good solubility in water.

5. Colorant and Stain Industry: Acid Blue 80 is utilized as a colorant and stain in various industries. It can be used to impart a blue shade in products such as paints, coatings, varnishes, and wood stains.

6. Laboratory and Research Applications: Acid Blue 80 is sometimes used in laboratory settings as a dye or stain for visualization purposes. It can be applied in techniques like microscopy, histology, or cell biology to stain specific structures or components.

7. Dyeing of Other Materials: Acid Blue 80 may also be used to dye other materials like feathers, plastics, or certain types of resins, depending on the specific application requirements.