发明名称 |
METHOD AND APPARATUS FOR DEPOSITING MOISTURE-ABSORBENT AND THERMOPLASTIC MATERIAL IN A SUBSTRATE |
摘要 |
A method and apparatus for forming a non-woven pad of fibrous material is provided in which highly moisture-absorbent particles and fibers of thermoplastic material are intermixed with the fibrous material throughout one or more predetermined portions of the thickness of the non-woven pad while maintaining other portions of the thickness of the pad substantially free of highly moisture-absorbent particles and/or thermoplastic fiber material. The non-woven pad is formed on one side of a conveyor moving through a forming chamber which has a duct connected to a source of vacuum operable to draw fibrous material injected into the chamber onto the conveyor. One dispenser discharges the highly moisture-absorbent material at a predetermined location relative to the fibrous material being drawn onto the conveyor, and at least one other dispenser discharges the thermoplastic fiber material into the chamber at a location to intermix the thermoplastic fiber material with the fibrous material and highly moisture-absorbent material being drawn onto the conveyor at the predetermined location, and/or to intermix the thermoplastic fiber materials with the fibrous material in areas of the thickness of the non-woven pad on one or both sides of the highly moisture-absorbent material.
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申请公布号 |
US5143680(A) |
申请公布日期 |
1992.09.01 |
申请号 |
US19900525880 |
申请日期 |
1990.05.17 |
申请人 |
NORDSON CORPORATION |
发明人 |
MOLNAR, JULIUS J.;FENA, ERNEST J.;FOLDEN, DAVID W.;SCHNEIDER, DOUGLAS A.;BECKER, RICHARD A.;FIMMEN, CHARLES L.;SELESTAK, DAVID M.;SHLAPAK, ROBERT |
分类号 |
A61F13/53;A61F13/15;A61F13/49;D04H1/04;D04H1/48;D04H1/54;D04H17/00 |
主分类号 |
A61F13/53 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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