8. Rayon
Avoid putting your rayon clothing in the dryer since this material wasn’t made to handle high temperatures, so it will probably shrink. The tumble movement of the dryer can result in snags, tears, and pills even at moderate temperatures.
Lay them flat on a rack far from heat sources and direct sunlight to dry rayon garments. Use a low-heat iron to smooth out wrinkles if necessary.
9. Backpacks, lunch bags, and reusable shopping bags
It is clear that reusable shopping bags, backpacks, and lunch bags require frequent washing and cleaning when you consider all the items that wind up in them. But unless they are composed entirely of cotton, none of these items should be dried in a dryer.
The interior structure of insulated bags can be destroyed by the high heat of a dryer, which can also cause the outside materials to melt, warp or shrink.
