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System and method for forming carton blanks

  • US 5,783,030 A
  • Filed: 01/17/1996
  • Issued: 07/21/1998
  • Est. Priority Date: 12/21/1992
  • Status: Expired due to Term
First Claim
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1. A system for forming a laminate of materials comprising:

  • a pair of laminating rolls having facing portions to form a nip therebetween;

    first feeding means which feed a continuous strip of a relatively rigid material into said nip;

    second feeding means which feed a continuous film of a relatively flexible fluid impervious material into said nip;

    said continuous strip of a relatively rigid material and said continuous film of a relatively flexible fluid impervious material having substantially the same transverse width;

    third feeding means which feed a plurality of continuous strips of a relatively flexible material in spaced apart relationship into said nip and located between said continuous strip of a relatively rigid material and said continuous film of a relatively flexible fluid impervious material;

    coating means which apply a coating of an adhesive material as required so that said pair of laminating rolls secures said plurality of continuous strips of a relatively flexible material only to spaced apart portions of said continuous film of a relatively flexible fluid impervious material and other portions of said continuous film of a relatively flexible fluid impervious material to portions of said continuous strip of a relatively rigid material as they pass through said nip; and

    processing apparatus for further processing said laminated material.

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