Packaging spool and process for producing same

a technology of packaging spools and spools, which is applied in the direction of lamination, lamination apparatus, chemical apparatus and processes, etc., can solve the problems of affecting the use effect of solid cores, bending, and becoming twisted, so as to achieve aggressive and effective adhesive

Inactive Publication Date: 2005-07-07
RIDGEWAY LAWRENCE M JR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011] The present invention is an improvement of reel or spool packages. The package of the present invention comprises opposing sidewalls or flanges formed of the specified or appropriate substrate which are connected by a core. The core is formed by a partition which acts as a mold, such as a simplified paper ring, filled with a flowable material which hardens. The flowable material may be a two part expandable polyurethane foam which is applied into the partition by a metering and injection device. The chemistry of the foam formulation may be altered to change density, rigidity and flexibility as required by package stresses. The foam is a very aggressive and effective adhesive medium, which forms the core while connecting the sidewalls to form the package.

Problems solved by technology

Additionally, packages for these products have sidewalls or flanges which act as retainers to keep the product from slipping off and becoming twisted, bent, damaged or difficult or impossible to use.
Other packages are of such large diameter that factors such as weight and cost make solid cores impractical.

Method used

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  • Packaging spool and process for producing same
  • Packaging spool and process for producing same

Examples

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Embodiment Construction

[0014] The reel package of the present invention comprises opposing sidewalls 2, 4 or flanges formed of the specified or appropriate substrate. FIG. 1. The sidewalls are connected by a core 6 formed of polyurethane. The core is formed or molded by preparing a partition, which may be a ring 8. The ring may be made of paper or other suitable material, which is filled with a flowable material 10, and acts as a mold, and forms the flowable material.

[0015] The flowable material is a liquid or semi-liquid material, which will harden or set to form a core. The flowable material also acts as adhesive to connect the sidewalls to the core.

[0016] The flowable material is preferred to be comprised of two-part expandable polyurethane foam. Polyurethanes are formed by isocyanates, which are reacted with agents having a hydroxyl group, such as polyols. These materials may be produced as foam which expands as it is dispensed. The foam is delivered into a defined void in a metered dosage. The foam...

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Abstract

A reel or spool package has opposing sidewalls or flanges formed of the specified or appropriate substrate and connected by a core formed of a flowable material which sets or cures to harden, such as a two part expandable polyurethane foam. The foam is applied into a partition, which may be a paper ring, by an injection and metering device. The chemistry of the flowable material may be altered to change density, rigidity and flexibility as required by package stresses. The polyurethane foam is an effective adhesive medium, thereby forming the core and connecting the sidewalls to form the package.

Description

[0001] This Application is a continuation of application Ser. No. 10 / 042,687, having an effective filing date of Aug. 26, 1999.FIELD OF THE INVENTION [0002] This invention relates to packaging materials generally, and is more specifically related to reels or spools for packaging. BACKGROUND OF THE INVENTION [0003] Reel packages and spool packages are used for the packaging of products which are produced in a continuous and connected manner and are packaged in large number or high count continuous lengths for long run use, including automated use. These products are typically packaged in a “ribbon wound” (layer on layer) or convolute manner on a central core of a size closely matching the width of the manufactured product, so that the user of the product may unwind the product in an orderly, controlled manner for use or installation in other products. Products which are packaged on reels and spools are made of a wide variety of raw materials including metals, plastics, textiles and o...

Claims

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Application Information

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IPC IPC(8): B65H75/14
CPCB65H2701/51528B65H75/14
InventorRIDGEWAY, LAWRENCE M. JR.LEE, JAMES M.
OwnerRIDGEWAY LAWRENCE M JR