【Text, Pictures/Excerpted from If I publish "We Can't Fart Without Microorganisms", author Marcus. Eigert, Franc. Taduis】
My colleague at Hangao once said something like a warning bell, and it still sounds like a slut in my ears: "The biggest danger when washing clothes is to touch the clothes with your hands." He said it too well.
In ordinary homes, there are fewer problems in spreading diseases through laundry machines. After all, modern work is becoming less and less physically active. Many people do customer service work, and the workplace is often office. Therefore, the degree of dirty clothes is no longer as good as before. Nowadays, cooking and washing processes are rarely needed (90 degrees Celsius).
However, there are still risks in theory that even at home, they may be infected with bacteria that cause harm to each other by changing laundry, such as strong bacteria such as podiatum or Norovirus. However, more often, trouble is actually caused by direct contact between people, especially by contacting hands or touching the surface of a problem when working in the house.
We should remind ourselves at any time that the primary purpose of cleaning clothes in general households is to remove dirt, spots and odor, not to disinfect. Disinfection is important in hospitals or care institutions where many severe patients or people with poor immunity live. In these places, people use special chemicals and high temperatures to clean, disinfect and change laundry. The specialized sculpting products in the surgical room have very laborious processing procedures, namely, 120 degrees of steam, and high pressure of two bars to kill bacteria. There is no need to pay for this at home, modern laundry machines and full-effect laundry are definitely enough to clean clothes. However, the R&D department of the laundry company is still breaking its head to launch new ideas. What is the reason?
Magical Ingredients: The laundry trend and laundry hygiene under bleaching are just opposite. In order to save energy and extend the service life of clothes, the temperature of laundry is getting lower and lower. In addition, it is also because many materials are particularly expensive now, and they cannot withstand chemical washing or high temperature.The more irritating and the comprehensive benefits of liquid laundry detergent, which is easier to measure and dosage than powder, and will not be left on the clothes after washing. However, it does not contain bleach, which is the main ingredient in antibacterial.
During the cleaning process, the bleach produces oxides (Peroxide, a kind of reactive oxygen species), which can eliminate soil and microorganisms through oxidation. This substance is only intentional when added to the powdered full-effect laundry agent. It cannot be preserved in liquid laundry essence. Adding bleach to the colored laundry essence will damage the color of the clothes.
Liquid laundry essence has a high moisture content. Once the moisture content is high, it is susceptible to microbial contamination. As a result, the main detergent ingredient in the laundry serum, the interface active agent (Tenside, a carbon dioxide compound) has just become a microbial food.
So in order to preserve, liquid laundry serum must be added with preservatives, otherwise it will corrode quickly like other easily decayed items, and the disgusting smell will make it difficult for people not to notice. I don't know which microorganism report magazine, I read a description of liquid laundry sock, which is very convincing. He said: laundry sock itself must be made into a dense form to prevent microorganisms. From this fact, we can realize that it cannot be a sharp killer in the laundry machine.
When working at Hangao Company, the department I am staying for is also responsible for checking the liquid laundry serum sent back by angry consumers. The reason for return may be that the laundry essence has odor or the components have been separated, which is often caused by insufficient amount of preservatives, such as a certain pipe line being blocked during production. Internal insiders call the cabinets that store damaged or odorous samples "Horror Small Wall". Of course, the official news manuscript does not have this verb ……
The killing rate of 99% means that there are still millions of millions of powder laundry that survive, so there is no problem with shelf life. In the 60-degree washing machine, it is a powerful weapon for household sterilization. Depending on the bacterial species and clothing conditions, the bacteriostatic effect can exceed 99%. Nine.The industry currently attempts to use the addition of so-called bleach activators to produce full-effect laundry agents that also have good bleaching functions at low temperatures. Combining health and durability, this path is right. Liquid laundry can kill almost 99% of the bacteria, but don’t forget: from a certain number of cases, the amount of laundry in a laundry machine at a time is estimated to contain tens of billions of bacteria. In other words, even if 99% of the microorganisms are eliminated during the cleaning process, there are still millions of bacteria to survive. For a person with poor immunity, there is still a difference.
The bacteria-killing effect of a washing process is affected by many factors. A situation that allows both microbiologists and users to be satisfied is usually not too friendly to the environment. Generally speaking, the better the bacterium is, the more energy it consumes - for example, killing bacteria through high temperature or longer cleaning time.
In addition, there are some suggestions here that can help us prevent bacteria from contaminating with just-washed clothes.
Suggestions on laundry and hygiene for microorganisms
• The decisive factor against microorganisms is the correct amount of laundry serum. In addition, general washing processes (higher temperatures) should also be used frequently.
• Too much clothing will reduce the cleaning effect, especially when the clothes are very dirty.
• The more you blow, the more you can eliminate bacteria and laundry residue.
• Use full-effect laundry agent and the air-to-washing machine to operate at 60 to 90 degrees Celsius to prevent the washing machine from smelling. Clean the box and door frame rubber mat where the laundry serum is stored, and turn on the laundry machine to dry properly.
• The stronger the drainage stroke, the better. Sunshine and continuous ironing can further kill bacteria.
• High temperature laundry can prevent the washing machine from smelling. Synthetic clothing materials are more likely to adhere to bacteria and produce odors than cotton, but they are not resistant to high-temperature washing.
• Relatively expensive functional clothing is cleaned separately from general clothing, and should be washed immediately with high-end laundry agent after wearing it.