Why do clothes get shiny when ironed?

Clothes can become shiny after ironing because too much heat or pressure flattens the fabric fibres. This happens most often with dark garments, synthetic fabrics, wool blends and school uniforms. When the iron presses directly onto the material at a high temperature, the fibres reflect light differently, creating a glossy or shiny patch.

Over-ironing is another common cause. Leaving the iron in one spot for too long can scorch the fabric surface and damage the texture. Steam irons can also create shine if the garment is slightly damp and exposed to excessive heat. Trousers, blazers, skirts and shirts are especially prone to this problem because they are ironed more frequently.

To prevent shiny marks, always check the care label before ironing. Use the correct heat setting for the fabric type and iron clothes inside out when possible. Placing a clean cotton cloth or pressing cloth between the iron and the garment also protects delicate fibres. Regularly cleaning the iron plate helps avoid residue marks and uneven heat.

If stubborn shine appears, professional pressing services such as Hello Laundry can help restore garments safely while protecting fabric quality.