| 摘要 |
PROBLEM TO BE SOLVED: To provide a kitchen sponge which not only satisfies hygiene but the requirements for foaming, foam sustaining, foam cutting, drying and other properties as well and is reduced in a cost. SOLUTION: This kitchen sponge is formed by respectively bonding and laminating hot press foams of a first layer consisting of an ester-base three- dimensional networked polyurethane foam subjected the surface side to profiling, a second layer of a polyurethane foam not removed of ester-base cellar films, a third layer of the ester-base three-dimensional networked polyurethane foam and a fourth layer of the ester-base three-dimensional networked polyurethane foam respectively by adhesives. 1... The first layer (the ester-base urethane foam removed of the cellar films), 1a... the profiling of the first layer, 2... the second layer (the ester-base urethane foam with the cellular films), 3... the third layer (the ester-base polyurethane foam removed of the cellar films), 4... the fourth layer (the hot pressed ester-base polyurethane foam removed of the cellar films).
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