Manufacturing Industry
New cold-cure foam system for seat cushions eliminates need for crushing. (automotive).(Kumho Mitsui Chemicals Inc.)
Urethanes Technology, December, 2001 by Park, Jaebeom
Although cold-cure moulded foams dominate in the manufacture of automotive seat cushions in Korea, they suffer from one major drawback: the presence of a high proportion of closed cells. While these cells can be readily opened by techniques such as mechanical crushing or by subjecting the cushions produced to a vacuum, this involves extra production equipment and time and can also result in some reduction in physical properties.
The hot-cure system is only used in Korea to make some seat backs and, despite the above-mentioned drawbacks, the use of the cold-cure process in making foam seat cushions is increasing because it uses less energy.
More recently, demands have been increasing to obtain car seats having excellent durability and comfort combined...
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