Foam and sponge sofa
Foams are substances of different chemical compounds that appear directly or indirectly in special heat furnaces. The foam has a longer resistance and life than sponges and clouds. That is why it is used in high quality goods. Keep in mind that foams are raw materials used in many industries. In the furniture and decoration industries, they use foam specifically. In each industry a particular form of foam is used.
Foam types
In general, foam can be divided into the following three groups:
• Polyurethane
• Polyethylene
• Polystyrene
Polystyrene foam and polyethylene foam are more commonly used in thermal, acoustic or bumpers insulation. Note that in sleep and mattresses, decoration and furniture use polyurethane foam. Polyurethane foams are also divided into two categories: hot and cold.
Cold foam
Cold foam is one of the types of polyurethane foam known as cold foam or foam memory. Products made from cold foam have long life and high quality.
Warm foam
Hot foam, as its name implies, is obtained against heat and high temperatures in the furnace. The main characteristic of hot foam is its hardness. Keep in mind that the same feature decreases over time. The hot foam has very low elasticity. Warm foams have a long shelf life and longer life. Use more hot foams in furniture and car seats.
Special foam
Special foam is a type of foam that has the properties and properties of hot and cold foam in one place. Special foam has a characteristic between hot and cold foam. Now this type of foam is used in some comfortable sofas.
Good quality foam
Foam
Flexibility and durability are two characteristics that are intended to specify the lifespan for foams. If you use foam with high flexibility, shelf life and lifespan will be guaranteed in your furniture.
Resistance and strength in foams
All foams used in the construction of sofas must be very resistant to fire. If your foam doesn't have this feature, you need to review your purchase. To be able to choose the right foam furniture so that it can be resistant to fire, it must be written on the FR Foam Label. Note that some manufacturers also use this label on foams.
Diagnosis of hot foam from cold
In most cases the foams are visible. To determine that it is a hot or cold foam, just press your finger on the foam and take it after a few seconds, as if your finger was not on the foam, that foam is cold. If your finger was left on the foam you will conclude that the foam is warm.
Sponge
sponges are the same as the clouds of cream. To determine the life of the sponges, it is enough to pay attention to their thickness. The longer the sponge is thick, the longer it is. Currently, the best sponge used to produce sofas has a 30kg density. Keep in mind that most people know sponges as clouds. Sponge with different thicknesses is used for many parts of the furniture. For example, the back and furniture handle uses low thickness sponge. At the bottom of the furniture, they use a 30kg sponge or outer. Their 30kg sponge means their density. The longer the density and density in the sponges, the longer their lifespan.
Sponge
In general, sponge or cloud ingredients consist of three important substances:
• Water
• First bridge
• Iso cyanate
Water in the sponge increases the volume and expansion in the sponge. During the production process, raw materials change. After this process, the resulting compound reaches 20 to 25 degrees Celsius. Keep in mind that this temperature is the best temperature for the sponge and the contaminated elements such as methylene chloride are removed.
Foam
When buying furniture you may encounter different terms such as sponges, hot foam and cold foam. You need to know about the difference between these terms so that you can make the best choice. The foam comes with special chemicals in the furnace and has a variety of types. This diversity causes foam to be different quality. But sponge is a typical cloud made in different thicknesses.
Foam and sponge application in furniture
Cold foam in general is better than sponge, but sponge is also used in different parts of sofas including handles. In fact, both of these products are widely used in the manufacture of sofa, but the location of their use in furniture is different. Keep in mind that using sponges is not suitable for the base of the base. For the bottom of the sofas, they use hot and cold foam or special foam. Using a 30 -kg sponge is used for sofas. Sometimes sponges with density and low density may be used to make cheap sofas. If the density of the sponge is high does not cause any problems for the living room sofa; But it affects the comfort of the sofa. When shopping, you need to try sofas in terms of stiffness and softness. High density sponge has a longer life span compared to low -density sponges; But more density will cause more stiffness. In fact, the sofa loses its comfort to sit and becomes stiff.
Sometimes sponges or foam may be damaged or lost in furniture earlier than the sofa surface. This will eliminate the comfort of sitting on the furniture. But you can change the foam or sponge of the sofa in the event of this problem.
