公开(公告)号：US4348251A

公开(公告)日：1982-09-07

申请号：US218251

申请日：1980-12-19

Applicant: Walter L. Pauls ,  Raymond A. Dunleavy, III

Inventor： Walter L. Pauls ,  Raymond A. Dunleavy, III

IPC: B05D1/26 ,  B29C44/30 ,  B29C44/46 ,  B29C48/31 ,  D04H1/68 ,  D21H21/56 ,  B29D27/00 ,  B29J5/00

CPC classification number: B05D1/26 ,  B29C44/461 ,  B29C44/505 ,  B29C47/0816 ,  B29C47/16 ,  B29C47/165 ,  D04H1/68 ,  D21H21/56 ,  D21H25/00 ,  D21H25/02 ,  D21H5/2664 ,  B29C47/0021 ,  B29L2007/00

Abstract: A method and system for applying a foamed binding agent to a fibrous web is disclosed. The invention is characterized by the use of an extruder having an upper lip extending 1/16 to 1/4 inch beyond the lower lip, and by the drawing of a vacuum beneath the applied foam, said characteristics being critical to the formation of a uniform foam layer atop the web. A second, more substantial vacuum is then applied beneath the web to essentially completely draw the binding agent into the web thereby providing substantial inter-fiber bonding.

Abstract translation: 公开了一种将发泡粘合剂施加到纤维网上的方法和系统。 本发明的特征在于使用具有超过下唇延伸1/16至1/4英寸的上唇的挤出机，并且通过在所施加的泡沫之下拉出真空，所述特征对于形成均匀的 泡沫层在网上。 然后在网下面施加第二个更实质的真空，以基本上将粘合剂完全拉成纤维网，从而提供实质的纤维间粘合。

公开(公告)号：US4385954A

公开(公告)日：1983-05-31

申请号：US400360

申请日：1982-07-21

Applicant: Walter L. Pauls ,  Raymond A. Dunleavy, III

Inventor： Walter L. Pauls ,  Raymond A. Dunleavy, III

IPC: B05D1/26 ,  B29C44/12 ,  B29C44/32 ,  B29C44/46 ,  B29C48/31 ,  D04H1/68 ,  D21H21/56 ,  B29D27/00 ,  B29J5/00

CPC classification number: B05D1/26 ,  B29C44/32 ,  B29C44/461 ,  B29C44/505 ,  B29C47/0021 ,  B29C47/0816 ,  B29C47/16 ,  B29C47/165 ,  D04H1/68 ,  D21H21/56 ,  D21H25/00 ,  D21H25/02 ,  D21H5/2664 ,  B29L2007/00

Abstract: A method and system for applying a foamed binding agent to a fibrous web is disclosed. The invention is characterized by the use of an extruder having an upper lip extending 1/16 to 1/4 inch beyond the lower lip, and by the drawing of a vacuum beneath the applied foam, said characteristics being critical to the formation of a uniform foam layer atop the web. A second, more substantial vacuum is then applied beneath the web to essentially completely draw the binding agent into the web thereby providing substantial inter-fiber bonding.

Abstract translation: 公开了一种将发泡粘合剂施加到纤维网上的方法和系统。 本发明的特征在于使用具有超过下唇延伸1/16至1/4英寸的上唇的挤出机，并且通过在所施加的泡沫之下拉出真空，所述特征对于形成均匀的 泡沫层在网上。 然后在网下面施加第二个更实质的真空，以基本上将粘合剂完全拉成纤维网，从而提供实质的纤维间粘合。