Why fabric can turn shiny

Short answer: Shiny patches appear when the fibre surface is flattened by pressure and heat. It happens most often when ironing on too high a heat and in places with a lot of friction, such as elbows and the seat.

The iron is the main cause

Too much heat presses the fibres flat, and the surface can fuse slightly. Light is then reflected evenly instead of scattered, which shows as a shiny patch. It happens quickly if the iron is too hot or pressed down hard. Avoid it by using low heat on the items in bamboo tops for women.

Why light makes the difference

A matte fabric has a surface of many tiny fibres pointing in different directions. They scatter the light, so the fabric looks soft and muted. When the fibres are pressed flat and lie the same way, they reflect light like a mirror. It is the same effect you see on a polished table. The colour has not changed, but it looks different.

Friction does the same

On elbows, the seat and other high-pressure areas, the fibres get flattened over time. The same happens where a bag strap or seat belt rubs against the fabric. This applies to all materials, not just bamboo viscose. You also see it in all men's clothing, especially trousers and sweat that are worn often.

Dark colours show it most

On black and navy, the contrast between matte and shiny is greatest, so the patches stand out quickly. On grey and pale colours you hardly see it, even though the fibres are just as flattened. If you choose dark colours, careful ironing matters even more. See the colours in most popular at Copenhagen Bamboo.

How to iron without shiny patches

Turn the garment inside out and iron on low heat. If needed, place a thin cloth in between so the iron never touches the surface itself. Use steam rather than pressure, and lift the iron instead of pushing it hard across the fabric. Many knits do not need ironing at all if you hang them up damp.

Washing and drying play a part

Hot washes and tumble drying make fibres more prone to wear, because they bend and rub against each other. Wash at 30 or 40 degrees, turn the garment inside out and skip the dryer. That way the surface keeps its matte finish longer. Avoid overloading the machine too, or the clothes rub against each other more.

What to do once it has happened

Shiny patches can often be reduced if the fibres are allowed to stand up again. Steam the fabric well and brush it gently with a soft brush while it is damp. Some people also use a cloth with a little vinegar in the water. The result is rarely perfect, but the patch usually becomes less obvious.

Everyday habits that help

Rotate between several garments instead of wearing the same one every day, so the fabric gets time to rest. Hang clothes up after wearing them, so the fibres can straighten out. Consider a cushion or blanket on hard chairs if you sit a lot. Small habits like these keep the surface matte and neat for longer.

Frequently asked questions

Can shiny patches be removed

Partly. Steam the fabric and brush it gently with a soft brush while it is damp, so the fibres stand up again. The patch becomes less visible but rarely disappears completely.

How do I avoid it when ironing

Iron inside out on low heat and put a cloth in between. That way the iron never touches the surface, and the heat does not press the fibres flat.

Is shine a sign of wear

Yes, usually. It means the fibres have been flattened by pressure, heat or friction and will not fully recover on their own.