Does wallpaper contain high formaldehyde content?

There are all kinds of wallpapers on the market now, and you can buy them in many home decoration stores. In addition, you can also easily buy wallpapers online. The patterns on these wallpapers are very beautiful, and the designs are very exquisite. They are especially convenient to stick on the wall, and can be replaced at will in the future. The prices are also relatively low, so wallpapers are very popular nowadays. So, is the formaldehyde content of general wallpapers high?

Does wallpaper contain high formaldehyde content?

Although all wallpapers on the market claim to be "zero formaldehyde", there are almost no wallpapers that are truly formaldehyde-free. The only problem is the high or low formaldehyde content. So, does wallpaper contain high formaldehyde content? How to judge?

Sources of formaldehyde in wallpaper

Raw materials: First of all, the reason why wallpaper contains formaldehyde is mainly because the raw materials used contain formaldehyde. Wallpapers are mainly divided into pure paper wallpaper, PVC wallpaper, non-woven wallpaper, metal wallpaper, etc. according to the materials. No matter which kind of wallpaper, the raw materials used contain a certain amount of formaldehyde.

Wall glue: The saying goes "no formaldehyde, no glue". Although many businesses claim that their glue does not contain formaldehyde, the fact is that almost all glues contain formaldehyde. Glue is used in the process of wallpapering, so it is understandable that wallpaper contains formaldehyde.

Is the formaldehyde content in wallpaper high?

Whether the formaldehyde content in wallpaper is high or not depends mainly on the quality of the raw materials and the quality of the wall glue. Usually, the raw materials of wallpaper are formaldehyde-treated during the production process to reduce the formaldehyde content to a level that will not harm human health. However, some inferior wallpapers use materials that have not undergone rigorous processing and review and contain high levels of formaldehyde.

In addition, the viscosity of the glue is directly proportional to the formaldehyde content. The better the viscosity of the glue, the higher the formaldehyde content.

The environmental performance of the adhesive used to bond wallpaper. Wallpaper needs to be pasted on the wall, which requires adhesive, and the adhesive generally contains formaldehyde. Adhesives are mainly divided into two types: organic solvent type and water-based type. Organic solvent-based adhesives not only contain formaldehyde, but in most cases also contain organic volatiles such as toluene and xylene. In recent years, most of the environmentally friendly adhesives on the market are water-based, such as glutinous rice adhesive. Although this type of adhesive is more environmentally friendly, formaldehyde is still added as a preservative, so formaldehyde is still released to a certain extent. However, the formaldehyde in this type of adhesive has two characteristics: one is that the release amount is relatively low, and the other is that the formaldehyde release period is relatively short, generally about half a year.