The meaning and standard of sofa sponge density

Sponge is one of the indispensable materials in the composition of the sofa, and it is also the most important, it plays a decisive role in the soft and hard comfort of the sofa. Generally, sponges are classified according to density, and the so-called density refers to the weight of each cubic meter of sponge.

Density is an important indicator of sponge quality. The denser the sponge, the smaller the space between the sponges inside. For example:

30-density sponge means that the weight of a cubic meter of sponge is 30 kilograms, 40-density sponge means that the weight of a cubic meter of sponge is 40 kilograms, and so on. However, some manufacturers, in order to meet the high density standard, will not meet the standard sponge by adding talcum powder to increase the weight of the sponge, therefore, to identify the quality of the sponge standards we should focus on the rebound or compression of the effect of deformation. Normally, the denser the sponge, the harder it will be, but if an ultra-soft additive is added, it will become ultra-soft again.

Therefore, the hardness and softness of sponges of the same density are not necessarily the same.

The more intuitive feeling of sponge is its elasticity and softness. Therefore, sponges can be divided into high resilience, low resilience, hard, soft and ultra-soft. According to the explanation of the density of the sponge by the relevant national departments, the density is higher than 45 for the high-density sponge, the density between 45-18 is the medium-density sponge, and the low-density sponge is less than 18.

Used to make sofa material sponge, sponge with different densities can be selected according to different parts of the sofa, but high-quality sponge is generally high resilience.