The diaper has a pungent smell

The choice of diapers is very important for babies, which requires mothers to keep their eyes open and keep a close eye on their babies. The baby's skin is delicate and the anus is more susceptible to infection. Once the baby uses inferior and smelly diapers, the baby will have a red buttocks in mild cases, and a urethral infection or anal inflammation in severe cases. The baby will cry out if he is uncomfortable, so mothers must pay attention to the baby's condition.

1. If the diaper has an odor, it may be a product quality problem. Since we don’t know what the substance is, it is hard to say whether it will affect the baby. It is recommended that you do not use diapers with this kind of odor, as it may be a problematic product. It is recommended to buy it in a regular store or supermarket.

2You need to pay attention to the discomfort symptoms caused by local moisture and infection caused by the use of diapers. Then be careful not to use diapers in time. At the same time, pay attention to local dryness and hygiene, so that the discomfort can be improved in time.

3 1. This is the taste of the raw materials

Generally, the structure of diapers is divided into three layers: surface covering layer, absorbent core layer and bottom layer. The surface layer is made of non-woven fabric, the absorbent core layer is made of absorbent beads and fluff fibers, and the bottom layer material is mainly made of PE film or PE film + non-woven fabric. Do these raw materials of diapers have smell?

Let’s first look at the surface coating.

The surface layer of diapers is mainly non-woven fabric. Non-woven fabrics have the advantages of good strength, breathability and waterproofness, environmental protection, flexibility, non-toxic and odorless, and low price. The words "non-toxic and odorless" stand out. The smell of diapers probably has little to do with non-woven fabrics.

Next is the absorbent core layer, which is the absorbent beads and fluff fibers.

Water-absorbent beads are highly absorbent resins, mostly polyacrylic acid series, mainly sodium polyacrylate. Do the strong water-absorbing beads have any smell themselves? Sodium polyacrylate is a white powder or granule, odorless and tasteless, swells in water, and is easily soluble in caustic soda aqueous solution; it is highly hygroscopic. The four words "odorless and tasteless" tell us the answer.

Finally, there is the outer layer (bottom layer) of the diaper, which is the PE film.

PE film, also known as polyethylene film, is mainly used to prevent urine penetration. So does the polyethylene film itself have any smell?

"Polyethylene is odorless and non-toxic...has excellent low-temperature resistance and good chemical stability." Note that polyethylene is "odorless" rather than "tasteless." From this point of view, polyethylene film is not tasteless, but it has no odor.

After dissecting it layer by layer, if we insist that the smell of diapers comes from the raw materials, then the bottom layer (PE film) seems to be more likely.

From this, it can be inferred that the smell of diapers after opening the package may come from the bottom layer (PE film).

2. Does the smell of disinfectant hurt you?

In addition to the PE film of the diaper, where else can the smell after the diaper is opened come from?

"All sanitary paper must be sterilized at high temperatures." From this, we can infer that the smell of diapers is the smell of disinfectant, which means that the diapers have been sterilized.

Xiaolu Dingding once mentioned that the diaper production process needs to undergo high-temperature sterilization, ozone sterilization, ultraviolet disinfection, or other disinfection and sterilization methods. In addition, the diaper production line will be shut down for cleaning and disinfection regularly. Therefore, diapers that are packaged directly without ventilation may have some residual odor.

From this, it can be inferred that the smell of diapers after opening the package may come from disinfectant.

3. Glue smell?

Some friends think that diapers have an odor, which may be the smell of glue. During the production process, diapers need to go through multiple glue spraying and scraping steps. After being made, the diapers are directly packaged and sealed without being ventilated, so it seems understandable that they have a slight smell of glue. The problem is, the adhesive used in diapers has an odor?

The adhesive used in diapers is pressure-sensitive adhesive, mostly hot-melt pressure-sensitive adhesive.