Multi-layered, needle punched, felt-like cushioning material and production method thereof
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United States of America Patent
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Aug 18, 1981
Grant Date -
N/A
app pub date -
Jan 28, 1980
filing date -
Jan 30, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The specification describes a multi-layered, needle-punched, felt-like cushioning material for a hot-pressing machine. The cushioning material is made of at least two fibrous batts and at least one foundation fabric interposed between the batts and needle-punched with the batts. The specification also describes a method for producing the above cushioning material. The cushioning materials according to this invention have a high density and can maintain high elasticity and excellent cushioning properties over a relatively long period of hot-pressing operation.
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Cited Art Landscape
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