How to identify the advantages and disadvantages of sofa sponge? Which is the best sofa sponge?

1. Elastic comfort.

The elasticity of the sofa sponge is determined by the density of the sponge, the high-density sponge has good resilience and has a good bearing capacity for the human body. The low-density sponge has very poor resilience, and it cannot rebound after a long period of use, and the sofa made of such sponge is very hard to use, and it is not comfortable at all.

Second, the service life.

Usually, the sponge has good elasticity and is not easy to damage, and can be used for decades, but the poor sponge has poor resilience, and the knowledge may have been deflated after a year or two of effort, and the service life is very short.

3. Environmental protection.

High-quality sponges are usually soft and odorless, but low-quality sponges may have black color and pungent smell.

Fourth, the sofa sponge is good and bad to distinguish skills.

When choosing a sofa, we must pay attention to choosing a sponge with a more delicate surface and a relatively small pora (except for space sponge and chaotic space sponge), and choose a sponge that can quickly rebound and fluffy in the feel, smell the smell, if there is a pungent smell is an inferior sponge, and finally experience whether it is comfortable, the sofa that generally uses high-quality sponge will have a depression of about 10 cm after the human body sits, and it can rebound quickly.

1. The resilience factor must be taken into account, and the resilience of a good sponge is generally about 45%, so as to ensure that the frequency of use is high and the quality is also very good.

2. The resilience of the sofa is relatively easy to identify, and the direct experiment can be, the sofa person with high-quality sponge sits on it, generally speaking, there will be a depression of 5-10 cm, and the bounce time is very fast, and the surface is flat, and the sofa with inferior sponge is generally the opposite.

3. The tension factor is a problem that must be considered when using, and the test method of tension is also very simple, directly stretch the sponge by hand, and then see the reflection of the sponge.

There are several types of cushions for sofas:

1. Pure sea surface.

2. Snake spring plus sponge.

3. Which is good depends on the quality of the sponge, generally speaking, the cushion of the sofa should use 40 sponge, if it can't be reached, it is useless to use any spring, under normal circumstances, it is better to add a sponge to an independent bag.

The details are as follows: 1. Introduction.

High-density sponges are sponges that weigh more than 45 kg per cubic meter. Now that the sponge process has been improved, it is no longer advisable to judge the density of the sponge solely by weight. The sponge of the current process has high density and is much lighter than the sponge processed before.

High-density sponges are no longer judged by weight alone.

2. Use. Generally speaking, the hardness of high-density sponges is also high, but it is not excluded that some high-density sponges will add ultra-soft additives to make the sponge super soft, which is used to make sound-absorbing cotton, sofa cushions, and upholstery materials. Medium-density and low-density sponges are used as general protective materials.

The hardness and softness of sponges of the same density are also different.

3. Function. Generally, the density of the sponge used for sofa cushions is about 35, and there are specifications such as soft, hard, and ultra-soft. The number of mattresses is generally about 22. The so-called high-density sponge is a term commonly used by salespeople when introducing products. High-density sponges are generally not used to absorb water.

The sponge cushion of the sofa is a polyurethane high-resilience material, and the grades are high, medium and low. The high-grade sponge has good resilience, no filler, is a pure polymer, has good flexibility when pressed, has large resilience, no brittleness, can quickly return to the original when removing external force, no indentation, and has a long service life. The low-grade sponge adds more fillers, and its comprehensive performance can meet the basic requirements and has a short service life.

The mid-grade sponge pad is somewhere in between, and is used more for everyday items.

A good sponge has good resilience, fast recovery speed, and is not easy to damage, while inferior sponges may collapse and other problems after one or two years of use, with a short service life, and may contain harmful substances. There are several kinds of inferior low-cost sponges in the sofa, such as using cheap sponges, cutting up leftovers and filling them in the cushion or backrest, the worst and least environmentally friendly is the use of recycled cotton, recycled cotton contains more formaldehyde, and the elasticity is almost none, even if it is used to fill the bottom of the cushion.

1.Looking at the appearance, in general, the more delicate the appearance of the sofa sponge, the better, that is, the smaller the pores, the better, (except for space sponge and chaotic space sponge).

2.The fluffy sponge that rebounds quickly when pressed by hand is high-quality, and the sponge that shrinks into a ball is low-quality sponge.

3.Smelling the smell, a normal sponge will have a little smell, but if there is a pungent smell, it is an inferior sponge.

4.Looking at the strength of the sponge, the high-quality sofa sponge is not easy to be torn, if the sponge is broken with a little hand, it must be an inferior sponge.

5.Try it out for yourself, and the sofa made of high-quality sponge has a depression of about 10 cm when you sit on it.

Extended information: There are three main types of sofa filling:

A. Flexible polyurethane foam (commonly known as sponge): The sponge used for sofa filling is mainly divided into three categories: conventional sponge is a sponge generated by conventional polyether and TDI as the main body.

It is characterized by good resilience, softness and air permeability; High resilience sponge is a kind of sponge generated by active polyphosphorus and TDI as the main body, which is characterized by excellent mechanical properties and good elasticity. Large compressive load, good flame resistance and air permeability; The spongy sponge is a kind of sponge that is similar to natural seaweed of different sizes in the inner hole, which is characterized by good elasticity and excellent cushioning during compression and rebound.

b. Down filling: Down is used as sofa filling, which is comfortable to sit and small in long-term use, and the disadvantage is that the rebound is slow and the cost is high. It is generally used in combination with sponge in high-end sofas, or suitable as cushions.

c. Artificial cotton filling: Artificial cotton is used as sofa filling, which is very soft and comfortable to sit on, but has poor mechanical properties and small compression load, so it is only suitable for cushions. The choice of the filling of the sofa: depending on the type of filling, there is a big difference in use.

First, look at the bottom of the sofa, the smaller the pores, the better, if the bottom of the sofa is fully enclosed, you can't see the sponge and some frame parts, you should be cautious about buying.

Second, smell the smell The one with a pungent smell is not environmentally friendly.

Third, sit on it and feel that the sofa is generally moderately soft and hard, and if it is too soft, it will generally be tired after sitting for a long time.

Fourth, zone press to feel the rebound of the sofa The faster you play, the better with the palm of your hand.

I hope it helps you, I like to give it a thumbs up.

If you can see it, look at the pores, generally the smaller the better, the density.

Another smell smell, there is a pungent smell is generally worse.

In or press it, sit for a while, and see the degree of rebound, fast rebound is generally good, slow is not so good.

Shop around, buy a sofa and turn a few more, and you will know after the experience.

It will not turn black, it will not become moldy, it is not easy to collapse and it is elastic.

Hello, the two technical indicators of the sponge are: density and rebound index. The density of the town is good, and the high quality is good, and the ** is high.

1. The sponge with poor elasticity and comfort is not dense enough, so it either sits on the sofa or sits on wood and has no elasticity. The sofa is not like the feeling of the sofa. The jargon is called a very sitting feeling.

A good sponge has a spring-like feeling because of its sufficient density and elasticity. 2. The sponge with good use time has good elasticity, fast recovery, and is not easy to damage. The poor sponge sinks after sitting for a year or two, and the bad family is gone.