The Fiber Made from Milk - A Hidden Japanese InnovationDid you know You can make fiber from milk!

Did you know that milk can be turned into fiber? That’s right—you can actually make fiber from milk.

Milk Fiber “Promix”

Promix” is a fiber developed by Toyobo in the 1970s. It combines animal protein (milk casein, also known as chinin) with acrylic nitrile, the raw material for acrylic fiber. Since animal protein is found in milk, this fiber is often referred to as milk fiber. For reference, approximately 1.4 liters of milk are needed to produce 100 grams of “Promix”.

Features of Promix

Developed as an alternative to silk, it features a soft texture and luster similar to silk.

It has good hygroscopic properties, as the amino acids in the fiber help retain moisture and absorb sweat quickly. It is comfortable to wear, alleviating stuffiness when sweating and providing warmth after sweating stops. Additionally, it has good dyeability and excellent light resistance.

Versatility of Promix

Being made from milk protein, it is gentle on the skin and moisturizing, with excellent moisturizing properties. As a result, it is used in products that come into direct contact with the skin, such as:

• Underwear
• Towels
• Scarves
• Baby products
• Bedding

As it mimics the qualities of silk, it is also ideal for luxury women’s clothing, including:

• Formal dresses
• Party dresses
• Luxury blouses
• Elegant knitwear
• Kimonos

Summary

Many wonderful fibers have been developed in Japan, but it seems they haven’t received much attention. Going forward, I would like to promote more of these materials globally and showcase the excellence of Made in Japan!

*Note: Our company does not currently handle this product.