1. Look, the surface layer of natural latex will be skinned. It looks like a substance like milk skin. Pressing will produce natural wrinkles. When the synthetic latex passes through high-temperature distillation, the added powder will turn black. Therefore, a large amount of fluorescent agent and whitening agent will be added to the synthetic latex to cover this phenomenon. Therefore, the synthetic latex will look very white and the surface will be oily. The natural latex will turn yellow when it is distilled at high temperature, and then it will be washed once, and after washing, it will show a light yellow or yellow white color. There will be bubbles in the production of natural latex, which can not be avoided in the process. Therefore, too perfect products need to be careful.
2. Actually, latex is originally another name for natural rubber juice, so the essence of natural latex is still rubber juice. Although the rubber juice looks like milk, its essence is different, so there is no so-called milk flavor. Pure natural latex products should present a light rubber flavor, rather than the so-called milk flavor. During the production of synthetic latex, chemical substances will volatilize and give off a pungent smell. In order to cover this smell, essence will be added. To get down to business, natural latex itself has a strong rubber smell. When washing, most of the smell will be washed away, which is why there is a slight rubber smell. However, some workers did not wash thoroughly when washing, so some of them were yellow or had strong rubber smell.
3. Touch, natural rubber feels soft and moist, a little like touching clothes that are not dry, a little moist. It feels good, like touching the baby's skin. Moreover, the product can be folded in half and then let go. The natural latex will be more elastic and bounce away, while the silicone products do not have this ability.
4. Tear: the natural latex is of medium firmness, so it cannot be torn by force, which will tear the natural latex products. Synthetic latex is very strong and tear resistant because of the addition of adhesive. Some products will be damaged when touched or gently pulled. This is the problem of the product itself, so we should be careful.
5. In addition, natural latex products cannot be kept in vacuum for a long time. Due to its slow rebound characteristics, it takes about one hour after vacuum to recover to its original state, and more than one month. Moreover, it is very likely to damage its molecular structure, resulting in a situation where it cannot rebound. If it cannot be recovered, the product can only be scrapped. Therefore, the general natural latex products will not be evacuated. The synthetic can be kept in a vacuum state for a long time, expand rapidly after being opened, and return to the original state.