How long can the quilt be dried to kill mites? sun
What we call the smell of the sun is actually the smell of dead microorganisms mixed with the smell of ozone. From this, we can also learn a common sense that a sun-dried quilt cannot be covered immediately.
When is the best time to dry the quilt?
The best time to dry the quilt on a sunny day is from 11:00 am to 2:30 pm. If you want to dry the quilt for a while, it will be too late to collect the quilt, and there will be cold and moisture intrusion, dewy and counterproductive. Not all quilts can be exposed to the sun, such as synthetic fiber cotton wool, you should avoid exposure to the sun. Down quilts and wool quilts must not be used in the sun, because the high temperature of the sun will change the oil contained in down and wool, produce a rancid smell, and also deteriorate and become brittle, becoming a breeding ground for lice bacteria.
Pay attention to the details of drying the quilt
The quilt is prone to retain some human dander, sweat, etc. Even a clean quilt that is not exposed to the sun for three consecutive months can breed millions of mites, and ultraviolet rays in the sun can effectively sterilize.
In addition, since various wood-based panels and wooden furniture contain formaldehyde and other chemicals, the quilt placed inside will absorb a large amount of free formaldehyde over time. Therefore, choosing a sunny day and taking the quilt to the sun can not only kill harmful microorganisms in the quilt, but also make the cotton fibers stretch and fluffy, allowing you to fall asleep under a soft quilt with a "sunny smell".
When drying the quilt, you should also pay attention to the following details:
First of all, the quilt can be dried directly. From 11:00 am to 2:00 noon, the sun is the most abundant. After drying the quilt during this time period, the cotton fibers will expand to a certain extent. And the down quilt and wool quilt should not be exposed to the sun, just dry them in a ventilated place such as a balcony for 1 hour.
Secondly, quilts made of chemical fiber fabrics or mixed fiber fabrics should not be exposed to sunlight, because chemical fibers will release chemicals at high temperatures for a long time. This kind of quilt can be covered with a thin layer of cotton cloth before drying, which can protect the quilt surface from damage. In addition, wool quilts and down quilts have very good moisture absorption and moisture removal. It is best to cover them with a cotton cloth when drying.
Finally, the sun-dried quilt should not be beaten. Because the fibers of cotton are thick and short, they are easy to break. If you beat them hard, the fibers will become cotton dust and run out. Synthetic fibers are generally thin and long, and easy to deform. Once the fibers are tightened after beating, they are not easy to restore and become a piece of compaction. Down quilts should not be beaten, otherwise the down will break into fine "feather dust", which will affect the warm effect. In addition, after the quilt is beaten, the dust on the surface and the excrement of mites will fly up, which is easy to cause allergic reactions. Therefore, for a sun-dried quilt, just brush it with a brush to remove the floating dust.
How long does it take to dry the quilt?
After a rainy day, drying the quilt in the warm sun, the quilt has the smell of the sun and green trees ---- So, how long should the quilt be exposed to the sun to make it better?
1. The best time to dry the quilt on sunny days in winter is from 10:00 am to 2:30 pm. If you want to dry the quilt for a while, it will be too late to collect the quilt, and there will be cold and moisture intrusion, which will be dewy and counterproductive.
2. Put the quilt on the rope, and the quilt surface is inside, mainly inside the quilt. Sun the quilt surface after one o'clock in the afternoon, and you can collect it at four o'clock in the afternoon. It is best to pat it when collecting. If it is dirty, it is best to have something like a stick to beat it. The purpose of drying the quilt is to use ultraviolet rays to kill bacteria in the quilt. Sun the quilt often, and it is comfortable to sleep under it.
3. When drying the quilt, in order to avoid direct sunlight, it can be covered with sheets, but turn the quilt over halfway so that both sides can get even sunlight. Kapok is twice a week for three to four hours of sun exposure. Synthetic fiber cotton is once a week for two to three hours of sun exposure.
4. The wool is sun-dried twice a month and in a cool place for two hours. Feathers are sun-dried once a month, 30 minutes in summer and one hour in winter, and dried in a cool place.
5. The feather quilt can also be placed indoors on a chair, as long as it can be ventilated.
6. The quilt underwent three changes after being dried:
1. The moisture in the quilt has been dried;
2. The microorganisms in the quilt are killed by ultraviolet rays in the sun.
3. The oxygen in the quilt is excited by ultraviolet rays to form ozone. The final conclusion is that the smell of the sun is the smell of dead microorganisms mixed with the smell of ozone.
What are the details of drying the quilt?
The quilt is prone to retain some human dander, sweat, etc. Even a clean quilt that is not exposed to the sun for three consecutive months can breed millions of mites, and ultraviolet rays in the sun can effectively sterilize.
In addition, since various wood-based panels and wooden furniture contain formaldehyde and other chemicals, the quilt placed inside will absorb a large amount of free formaldehyde over time. Therefore, choosing a sunny day and taking the quilt to the sun can not only kill harmful microorganisms in the quilt, but also make the cotton fibers stretch and fluffy, allowing you to fall asleep under a soft quilt with a "sunny smell".
What is the smell after drying the quilt?
Since the quilt that has not been dried for a long time has no smell of the sun, it means that this smell must be produced by the sun. So, what is the taste after drying the quilt? I will take you to understand.
Sunlight exposure will have a heating effect, and it also contains ultraviolet rays of various wavelengths from 100nm to 400nm, which are divided into four segments: UVA (315 to 400nm), UVB (280 to 315nm), UVC (200 to 280nm), and vacuum ultraviolet (100 to 200nm). UVC can kill bacteria and stimulate oxygen to produce ozone. The main changes in the quilt are:
1. The moisture in the quilt has been dried
2. The microorganisms in the quilt are killed by ultraviolet rays in the sun
3. The oxygen in the quilt is excited by ultraviolet rays to form ozone
The smell of the sun after the quilt is generated by these three changes:
The first is that the water is dried in the sun. According to our daily experience, the process of evaporation of water does not produce any odor, which is ruled out.
Second, can ultraviolet rays kill microorganisms? The answer is yes. The nucleus of microorganisms contains RNA and DNA, both of which can absorb high-energy short-wave ultraviolet radiation, and this absorption can make new bonds between adjacent nucleotides form bimolecules or dimers, so that the genes of microorganisms are messed up and cannot be synthesized normally, thus dying. So if people are exposed to ultraviolet rays for a long time, skin cells will also be damaged, and microorganisms such as bacteria and viruses will directly return to the west. The disinfection effect of ultraviolet rays on quilts is obvious. So do microorganisms produce odors after death? Is this smell what we call the smell of the sun?
The third is the generation of ozone. We all know that ozone has a pungent smell. There is air in the quilt, and the air contains oxygen. Under the irradiation of ultraviolet rays with a wavelength of 243 nm, the chemical bonds of the oxygen will break and produce ozone. So the smell of the quilt after being exposed to the sun must also contain the smell of ozone. But ozone is an irritating smell, why is the quilt not irritating at all? That's because the air flows, and most of the ozone produced will drift away with the wind. The rest will absorb ultraviolet rays from 210 nm to 290nm and photolyze, so in the end only a small part of the ozone is left, so the smell is very weak, and there will be no irritation.
That's it, what we call the smell of the sun is actually the smell of dead microorganisms mixed with the smell of ozone. From this, we can also learn a common sense that a sun-dried quilt cannot be covered immediately. Because the residual microbial remains and ozone may affect health, you need to knock it and sweep it with a broom.
