Apparatus for strip lamination of a polymer film and non-woven webs
AssigneeClopay Plastic Products Company, Inc.
InventorsRobert M. Mortellite, Kevin W. Preston, Thomas G. Mushaben
Life of this patent
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Abstract
An apparatus for lamination of a non-woven fibrous sheet and an extruded polymer sheet including a web slitter to divide the fibrous sheet into a plurality of webs, a plurality of folding means to fold each web, a plurality of separated turning bars to turn each folded web such that the webs are separated, and an extrusion laminator for laminating the polymer sheet to the separated webs to provide a laminate having a portion of the polymer sheet between the separated webs.
Claims23
An apparatus for in-line lamination of a non-woven fibrous sheet and an extruded polymer sheet to form a laminate, comprising:
- a web slitter for dividing said non-woven fibrous sheet into a plurality of narrow non-woven fibrous webs;
- a first plurality of folding means, each of the first folding means adapted to fold one of the plurality of narrow non-woven fibrous webs;
- a plurality of spaced turning bars positioned at an oblique angle to the incoming folded narrow webs for turning each of said narrow webs such that the plurality of webs are separated by a predetermined distance;
- and
- an extrusion laminator for laminating an extruded polymer sheet on a surface of the separated non-woven fibrous webs to provide a laminate of said extruded polymer sheet and the separated webs and having a portion of the extruded polymer sheet between the non-woven fibrous webs.
An apparatus for in-line lamination of a non-woven fibrous sheet and an extruded polymer sheet to form a laminate, comprising:
- a web slitter for dividing said non-woven fibrous sheet into a plurality of narrow non-woven fibrous webs;
- a first plurality of folding means, each of the first folding means adapted to fold one of the plurality of narrow non-woven fibrous webs;
- a plurality of spaced turning bars positioned at an oblique angle to the incoming folded narrow webs for turning each of said narrow webs such that the plurality of webs are separated by a predetermined distance;
- and
- an extrusion laminator for extruding a polymer sheet into a nip of opposed rollers to bond the extruded polymer sheet on a surface of the separated non-woven fibrous webs to provide a laminate of said extruded polymer sheet and the separated webs and having a portion of the extruded polymer sheet between the non-woven fibrous webs.
Dependencies are inferred from the claim text.