The quality of products produced by excellent sponge factories is guaranteed. Primary sponges have strict quality control from raw materials to processed products. They are not only superior in manufacturing machinery and technology, but also very different in after-sales and service. So how does our sponge manufacturer check the quality alone? How do we judge the quality of products?

Sponge density is a big criterion to measure its quality. Because the density reflects the amount of material used per cubic sponge, the general sponge sofa cushion is 25-30 kg per cubic meter, and the bag is 20-25 kg per cubic meter. Some domestic sponge manufacturers take part in talc powder in the production process. In the process of talc powder processing, many components containing formaldehyde and toluene are used to kill human body, and talc powder is added. Single drop seriously damages the service life and function of the sea surface. Sitting on it, the sofa is stiff and inelastic, and the sponge is crisp and easy to fall off. Excellent sponge factory sponge is refined from natural oil. The raw material is elastic, clean and tasteless. It can be released by holding it tightly with hands. It has good resilience.

Excellent sponge factory sponge is refined from natural oil. The raw materials are elastic, clean and tasteless. The more obvious the rebound is, the better the release is. The low-cost regenerated cotton is mostly processed from the scrap of sponge. It has dark color, strong smell, crisp and hard feel.

In order to improve the comfort of sitting, the foam should be soft treated under the premise of ensuring that the density is not lowered. Some vertical springs are installed in the cushion so that the sofa has higher resilience and anti-aging function. The quality of sponge sponge depends on density rather than its resilience or hardness. Sponge in the foaming process is the process of interaction of various components, so high rebound template strength does not mean that the rebound can be sustained, long service life. Many high-resilience sponge factories in shopping malls often begin to show different degrees of collapse after one year of use, which is due to the decrease of density, the soft sense of sitting and the good resilience of short time.