How to wash underwear (stay in a hotel)?

Every hotel has its own laundry room. If necessary, you can ask the laundry card in the laundry room of the front desk hotel. The laundry card has a price list of all kinds of clothes. Choose according to your own needs.

You can clean it yourself. Hotel faucets have two kinds of water temperature control: warm water and cold water. Laundry liquid needed for laundry can be purchased by yourself, or you can ask the hotel. After washing, just hang it in a ventilated place in the hotel room.

For underwear, I personally suggest that it is best to wash it yourself. Because underwear is small in size and light in weight, it is very convenient to clean, and this kind of close-fitting clothing is relatively safe to wash by itself.

Washing is a reversible process, and dirt removed from the fabric may return to the fabric. A substance that can properly disperse the removed dirt in the washing liquid and never return to the surface of the fabric is called an anti-redeposition agent.

Soap has good redeposition resistance, while anionic surfactants such as sodium alkylbenzene sulfonate have poor redeposition resistance. After washing the fabric with synthetic detergent without anti-redeposition agent for many times, the accumulated redeposition dirt will cause irreversible ashing of the fabric, which will affect the color depth and fastness of the fabric.