Published at Thursday, 22 March 2018. Sofa Design. By kruzz.
Sofa leather can come from cow or buffalo. From other perspectives, there are three types of leather, top grain, split (the second layer of leather beneath top grain) and third layer leather. Top grain is the most durable type of leather used for sofas, because it holds color well, is more resistant to mechanical strength, and has a rich, high-quality appearance with good air permeability. Split leather is the inner layer of a hide that has been split into two pieces and is inferior to top grain leather.
First, inspect your sofa-bed. Some are constructed with solid padded sections under the fabric, in others the fabric is stretched over a hollow frame. if the sofa-bed with hollow frame is incorrectly laid on its back on a moving dolly, the frame may crack under the weight of the sofa-bed. Also, if you load anything heavy on or against one of these hollow sections - the fabric might deform permanently and this will damage the sofa.
Inspect foam sponge For modern sofas, the high-end seat cushion has a density of 30 kg per cubic meter with high-elastic foam and sponge. For the back side, cushion should be more than 25 kg per cubic meter in density with high elastic foam. To make a better feel and comfort, sofa makers make the cushions more soft or more stiff depending on the customer needs and preferences. Sometimes, metal springs are used for a higher elasticity and anti-aging purpose. As rules of thumb, when you sit on a sofa cushion, it should not sink or sag for more than 10 cm.
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