What are the dressing principles of health science?

The new clothes you just bought often have a smell, which is the smell of formaldehyde, and it is used to deal with the wrinkles of cotton cloth. In high pressure and high temperature environment, formaldehyde molecules can combine with cotton fiber molecules to produce anti-wrinkle effect. But if the treatment process is not rigorous, or the cleaning after treatment is not thorough, formaldehyde will be released from the body, and even the cloth itself will contain formaldehyde. Studies have found that formaldehyde not only causes cough, allergic rhinitis and other diseases, but also induces cancer. Therefore, after buying new clothes, you should wash them first. It can also be soaked in light salt water, because salt can sterilize and prevent cotton cloth from fading, so that the treated new clothes are healthier and safer to wear.

Dry cleaning is the use of detergents or solvents to remove stains from clothes. The solvent can be alcohol or mineral oil. Modern people often take clothes to the laundry for dry cleaning for convenience. But the solvent used for dry cleaning clothes is very harmful to human health.

At present, the common solvent for dry cleaning is tetrachloroethylene, and once the skin absorbs the gas of tetrachloroethylene, it will appear dizziness, nausea and other symptoms. In addition, the research report of the United States Environment Agency shows that tetrachloroethylene emitted by wet dry cleaning clothes is one of the main substances that pollute indoor air. Carrying bags with dry cleaning clothes will also retain solvents containing toxins.

So the clothes should be dry-cleaned as little as possible. If it must be dry-cleaned, don't take the dry-cleaned clothes home and wear them immediately. Instead, take off the plastic cover immediately, hang the clothes in a ventilated place to dry, and then wear them after the dry cleaning solvent on the clothes evaporates.

Plastic sandals should not be worn for a long time in summer because they are mainly made of polyethylene and some anti-aging agents. Therefore, some people wearing these shoes are prone to "plastic allergy" and dermatitis, such as skin flushing, water sores, exudation, decay and itching. At this time, as long as you immediately stop wearing plastic sandals, put on cloth shoes and use some anti-allergic drugs, dermatitis will soon heal.