Abstract:
A laminating apparatus for laminating extensible plastic film material to a paper backing material to form a laminated composite. The apparatus comprises mechanical stretch control means for controlling the stretch or relaxation of the film material prior to lamination with the paper material. The apparatus also comprises means for monitoring the amount of film stretch in the laminated composite and providing data therefrom to a data processing unit which provides control signals to operate the mechanical stretch controlling means.
Abstract:
A method and apparatus for monitoring and controlling the longitudinal and lateral deformation and the lateral position of a moving web (12) of plastic film material which is laminated (27) to a moving web (16) of paper material to form a laminated composite (22).
Abstract:
A method and apparatus for detecting predetermined register indicia (12) on a moving web (10) of material having an obstructing field of indicia (18) positioned about the register indicia (12).
Abstract:
A method and apparatus for monitoring and controlling the longitudinal and lateral deformation and the lateral position of a moving web (12) of plastic film material which is laminated (27) to a moving web (16) of paper material to form a laminated composite (22).
Abstract:
A laminating device for laminating a continuous web of paper material to a continuous web of film material for forming a continuous web of laminated composite material at a laminating nip. Apparatus for dividing the paper web into at least two segregated tension zones upstream of the laminating nip and for dividing the composite web into at least two segregated tension zones downstream of the laminating nip are described. Control systems for monitoring and maintaining the tension in each tension zone at different, preset values, are also described.
Abstract:
@ An apparatus and a method for laminating a continuous roll of extensible plastic film material (12) to a continuous roll of paper backing material (16) wherein the apparatus has a system for controlling the amount of stretch in the plastic film material (12) to ensure proper registry of the film material (12) with the paper material (16).
Abstract:
A method and apparatus for detecting predetermined register indicia (12) on a moving web (10) of material having an obstructing field of indicia (18) positioned about the register indicia (12).