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公开(公告)号：EP0651677A1
公开(公告)日：1995-05-10
申请号：EP93917026.0
申请日：1993-07-08
申请人： NORDSON CORPORATION
CPC分类号： B05D1/265 , B05B7/0884 , B05C5/0237 , B05C5/0254 , B05C5/0275 , B05D3/042 , B29C44/461
摘要： Apparatus and methods for producing intermittent, discrete patterns (123) of foam coating material, onto discrete substrates (120) or substrate areas, where the patterns have sharp, square leading (121) and trailing (122) edges, as well as side edges (175, 176). A slot nozzle die has elongated air slots (61, 62) along the slot extrusion opening (40). Air flow is initiated from both air slots (61, 62) prior to the initiation of the foam flow. Also, the air flow is continued beyond that point in time when the foam flow ceases. The delays between the operations of the air flow and the foam coating flow are on the order of micro seconds. Alternatively, the lead and lag air start and stop times on each side of the foam coating material are different to control the exact disposition of the square cut-on and square cut-off coating edge (121, 122) on the substrate.
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公开(公告)号：EP0651677B1
公开(公告)日：1997-10-01
申请号：EP93917026.2
申请日：1993-07-08
申请人： NORDSON CORPORATION
CPC分类号： B05D1/265 , B05B7/0884 , B05C5/0237 , B05C5/0254 , B05C5/0275 , B05D3/042 , B29C44/461
摘要： Apparatus and methods for producing intermittent, discrete patterns (123) of foam coating material, onto discrete substrates (120) or substrate areas, where the patterns have sharp, square leading (121) and trailing (122) edges, as well as side edges (175, 176). A slot nozzle die has elongated air slots (61, 62) along the slot extrusion opening (40). Air flow is initiated from both air slots (61, 62) prior to the initiation of the foam flow. Also, the air flow is continued beyond that point in time when the foam flow ceases. The delays between the operations of the air flow and the foam coating flow are on the order of micro seconds. Alternatively, the lead and lag air start and stop times on each side of the foam coating material are different to control the exact disposition of the square cut-on and square cut-off coating edge (121, 122) on the substrate.
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公开(公告)号：EP0649348A1
公开(公告)日：1995-04-26
申请号：EP93917034.0
申请日：1993-07-08
申请人： NORDSON CORPORATION
CPC分类号： B05D1/12 , B05C5/0254 , B05D5/10 , D04H1/56 , D04H3/16 , D06N3/009 , Y10T156/1798
摘要： A slot die for producing a fibrous web of adhesive material includes a segmented shim having a plurality of fingers in said slot dividing adhesive material into a plurality of adhesive streams. The fingers have tapered ends which are flush with or extend slightly beyond the slot nozzle outlet. Separate material streams emanate from the slot nozzle outlet where they merge and are engaged by air flow producing a fibrous web of adhesive material. The adhesive and air flow are started and stopped at intervals to produce discrete fibrous webs having square, sharp leading and trailing edges.
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公开(公告)号：EP0649348B1
公开(公告)日：1997-10-01
申请号：EP93917034.6
申请日：1993-07-08
申请人： NORDSON CORPORATION
CPC分类号： B05D1/12 , B05C5/0254 , B05D5/10 , D04H1/56 , D04H3/16 , D06N3/009 , Y10T156/1798
摘要： A slot die for producing a fibrous web of adhesive material includes a segmented shim having a plurality of fingers in said slot dividing adhesive material into a plurality of adhesive streams. The fingers have tapered ends which are flush with or extend slightly beyond the slot nozzle outlet. Separate material streams emanate from the slot nozzle outlet where they merge and are engaged by air flow producing a fibrous web of adhesive material. The adhesive and air flow are started and stopped at intervals to produce discrete fibrous webs having square, sharp leading and trailing edges.
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