What an enzyme treatment does to the surface

Short answer: Enzymes remove the outermost loose fibre ends from the fabric. The surface becomes smoother, pills less and feels cleaner, without the fabric being treated hard mechanically. Here is how it works and what it costs the fabric.

Enzymes work in a targeted way

An enzyme breaks down one particular type of molecule and leaves the rest alone. Cellulases attack cellulose, and they do so mainly where the fibres stick out of the surface, because those parts are easiest to reach. That makes the method more precise than sanding, which affects the whole fabric equally.

Where the loose ends come from

When fibres are spun into yarn and yarn is woven or knitted into fabric, small fibre ends stick out of the surface. They are not loose from the start, but they are not held especially well. With wear and washing they rise up and tangle into small balls, which is called pilling.

The result is a cleaner surface

After the treatment there are fewer loose ends that can rise up and form pills. The fabric looks more even from the start and keeps its look longer. That is especially useful on fabrics that otherwise quickly look fuzzy, and on light colours, where pills and unevenness are easiest to see. See bamboo dresses.

Without hard mechanical treatment

The alternative to enzymes is often mechanical treatment, where the fabric is sanded or brushed so loose ends disappear. That can work too, but it is more uniform in how it affects the fabric. Enzyme treatment is gentler, because it works at molecular level and attacks only the outermost parts of the fibre.

The price is a little strength

The treatment removes material, and a fabric can lose a little of its weight and strength. So it is dosed precisely, and time, temperature and amount are tightly controlled. It is a balance between a smooth surface and a fabric that is not weakened. With good control the loss is small. See offers for women.

Can you feel the difference

Yes. An enzyme-treated fabric feels smoother and looks cleaner at the surface, and you can often see that it has a more even and slightly matte finish. The difference is biggest on new fabric and on softer fabrics that are more prone to pilling. You do not need to know about the process, because you can feel it with your hand.

Does the effect last

Yes, but not forever. The removed fibre ends do not come back, but new ones can be worn out over time through wear and washing. So a fabric may start to pill again after many washes. Gentle washing at a low temperature and without hard rubbing extends the time the surface stays neat. See Bamboo Basics.

Are enzymes used in detergent too

Yes, but there the purpose is to break down stains, not the fabric's surface. Enzymes in detergent work on fat, protein and starch. Some detergents also contain cellulases, which can smooth the surface of cotton, but for viscose and similar fibres many choose a mild detergent without extras if the fabric is delicate.

How to care for the fabric

Wash on a gentle programme at a low temperature, turn the clothes inside out, and avoid washing them with heavy items such as jeans and towels. That reduces friction, which is the main reason new fibre ends appear. That way the fabric keeps its smooth surface longer and looks good for several years.