DuPont Fiber Identification Stain #4

Pylam Products has been offering DuPont Fiber ID Stain #4 since the 1970s. For nearly forty years we have been supplying one of the greatest fiber identification systems to the pharmaceutical, textile, and manufacturing industries. Whether you need to comply with USP guidelines, internal quality control metrics, or are trying to determine the fibers that are in your product, DuPont Fiber Identification Stain #4 will help.

By using DuPont Fiber Identification Stain #4 you will be able to visually determine fibers such as:

  • Spun diacetate
    spun_diacetate

  • Bleached cotton
    bleached_cotton

  • Spun viscose (Rayon)
    spun_viscose

  • Nylon 66
    nylon_66

  • Spun Polyester
    spun_polyyester

  • Spun Polyacrylic
    spun_polyacrylic

  • Spun Silk
    spun_silk

  • Worsted Wool
    worsted_wool

If you are unsure of how to use DuPont Fiber ID Stain #4, simply use these easy-to-follow instructions:

  1. Wet the fabric with hot water
  2. Make a dye bath that is 1% DuPont Fiber Identification Stain #4 and 99% water (NOTE: this equates to approximately 1 gram of dye per 100 ml of water)
    • a. The dye bath should have enough of this solution so that it’s 20 parts solution and 1 part fabric that will be tested.
  3. Place the fabric into the boiling water solution that is 1% DuPont Fiber Identification Stain #4
  4. Boil the fabric for 1 minute
  5. Remove, rinse and dry
  6. Evaluate the fabric against the color chart to determine if the fiber is correct
  7. If there are any difficulties in classifying “Dacron” polyester fibers from “Orlon” acrylic fibers, return the fabric to the bath an add 5% sulfuric acid and continue to boil for five minutes.
    • a. The “Dacron” will generate a golden shade and the “Orlon” will generate a dull orange shade.

Download Instructions for DuPont Fiber Identification Stain #4

DuPont fiber Identification #4 is just one type of fiber identification products we offer. Pylam also offers several types of indicators, for both dyes and pH identification purposes. Contact us today to find the right solution for your product.

2 thoughts on “DuPont Fiber Identification Stain #4

  1. steveturri Post author

    Thank you for your inquiry, which we have processed and responded to via email. In the future, it would be best to use the Contact form on our site, at http://www.pylamdyes.com/contact-us.html. We look forward to working with you, and please don’t hesitate to let us know if we can be of further assistance in any way.

    Reply

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