Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1995-11-09
1997-10-07
Loney, Donald
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
264138, 532661, 53285, 53467, 493224, 493340, 493361, 493967, 206584, 206814, B32B 3100, B65B 100, B31B 114
Patent
active
056743440
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
THIS INVENTION relates to a packaging material. In particular, the invention concerns a loose fill packaging material, which may be used in conjunction with an outer container for receiving the packaging material and the goods to be shipped.
BACKGROUND OF THE INVENTION
Loose fill packaging material is known and in one earlier proposal consisted of shredded fibreboard or paper. Typically, waste fibreboard or paper was used. The outer container was partially filled with the loose fill packaging material, the goods being shipped were then placed within the outer container and further loose fill packaging material was then deposited over the goods to fill the remainder of the outer container. After this, the container was sealed and was then ready for shipping.
The goods being packaged often consisted of bottles containing liquids and a plurality of like containers were usually packed on a pallet for shipment. If the liquid from one of the containers should leak it was not unusual for all of the containers on that pallet to be damaged in some way.
Packaging of this type did afford a limited degree of moisture absorption but the nature of the packaging was such that it tended to settle or become compressed during shipping and its impact resistance was therefor greatly impaired.
Another type of known loose fill packaging material was made from beads or other shapes of polystyrene foam. Such material provided as satisfactory degree of impact resistance but could not be recycled and offered no absorptive properties. In addition, polystyrene is not particularly environment friendly.
Loose fill protective packaging, both for cushioning and void fill, plays an increasingly important role in the packaging and distribution industries. These loose fill protective products have been made from a variety of materials, namely plastic, paper, popcorn, gelatine, pulp and starch based materials.
The elements of an entire "packaging system" for audio equipment for example would typically be covered EPS from the product.
This system was composed of at least three different packaging materials (ignoring the adhesive) derived from cellulose and oil. Although all were ultimately recyclable, the present consumer waste collection scheme does not lend itself easily to the complete recycling of this system and ready disposal.
It is an object of the present invention to provide a loose fill packaging material, which at lease minimises the disadvantages referred to above.
DISCLOSURE OF THE INVENTION
According to one aspect the invention provides a loose fill packaging material consisting of discrete elements having a liner of fibrous material having a corrugated fibrous material medium secured to each face.
It is preferred that the corrugated medium be either A, B or C flute although other flute sizes may also be used. It is preferred that the corrugated medium on each face of the liner be of the same flute size although this need not be the case.
The elements may be of any convenient peripheral shape. It is preferred that the elements be other than square or rectangular in shape since elements of such a shape exhibit a greater tendency to nest or stack together in the outer container rather than maintain a random relationship relative to each other. It is preferred that the elements be of a quadrilateral shape. Alternatively, the elements may have only two sides which are parallel and the remaining sides may be curved or of any other suitable shape.
As mentioned, there is at least one liner of fibreboard material. Depending upon the method used to make the elements there may be a double thickness liner which has a respective fluted medium on each outer face thereof.
The elements of the invention may be by securing two sheets of single faced corrugated fibreboard together so that the liners of each sheet are secured to one another. The resultant sheet may than be cut into strips of a desired width and elements cut from the strips to yield loose fill packaging material of the type discussed.
An alternative me
REFERENCES:
patent: 2045733 (1936-06-01), Spatford
patent: 3743568 (1973-07-01), De Wolf
patent: 3785914 (1974-01-01), Fing
patent: 3961119 (1976-06-01), Thomas
patent: 5188880 (1993-02-01), Tether
Thompson Neil Anthony
Van Den Hout Frederick Walter
Amcor Limited
Loney Donald
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