1. Technical Field
The present principles relate to textiles. More particularly, it relates to a multi-layered textile construction that has particular applications in manufacturing flexible insulated bags used to maintain goods cold/hot when contained in the same.
2. Description of Related Art
Textiles for use in insulating environments are known. To date, most textiles used for insulating are in the form of flexible cooler bags for maintaining items cold and/or hot for an extended period of time without a cooling or heating system. These known textiles tend to be bulky (due to insulation layers).
In accordance with an aspect of the present principles, the multi-layered textile construction includes an outer set of layers and an inner set of layers. The outer set of layers and inner set of layers are laminated together under heat and pressure to form water tight cavities. A gel is then injected into the water tight cavities.
In accordance with another aspect, the water tight cavities further comprise soft hinges formed by the lack of lamination under heat and pressure. The soft hinges enable the folding of the multi-layered textile along the same after the gel has been injected into the water tight cavities.
Other aspects and features of the present principles will become apparent from the following detailed description considered in conjunction with the accompanying drawings. It is to be understood, however, that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the present principles, for which reference should be made to the appended claims. It should be further understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are merely intended to conceptually illustrate the structures and procedures described herein.
In the drawings wherein like reference numerals denote similar components throughout the views:
Referring to
The outer most layer 12 is preferably a polyester layer, the next layer is an insulating layer 14, for example a PE foam. A polyethylene film 16 is the next layer. The gel layer 20 is shown here, but is actually injected into the textile once the lamination process has been completed. This will be described in further detail below. On the inner side of the gel layer 20 is another polyethylene film layer 18, a polyethylene terephthalate file 22 and an inner most aluminum fabric 24.
In accordance with a preferred implementation, the layers (without the gel) are laminated together under heat and pressure. Those of skill in the art of the lamination process will appreciate that glue or other type of adhesives is used between the layers before the application of heat/pressure. By applying the heat/pressure in a predetermined pattern (discussed below) a complete gel panel with insulation can be manufactured in one process. This creates a significantly less bulky panel which makes for increased flexibility to design different shapes and sizes. In addition, the heat/pressure lamination process of these layers eliminates the need for stitching and thread which would otherwise be exposed on the inner most foil layer and has been proven to make the cleaning of the inside foil layer more difficult. Thus, by having no stitching needed to form the gel panels, the cleaning of the inside of the bag is simple and without any obstacles that can catch and retainer dirt/food/drink, etc.
As will be appreciated, this above described multi-layered textile design, in addition to the lamination process for making the respective panels allows for the thinnest possible panel while maintaining the strength, integrity and insulating (cooling or heating) characteristics of the same.
The openings 112 in the gel cavities 120 (see
As will be appreciated from FIGS.1, 4 and 5, and as shown in
1) layering (602) the outer set of layers 12, 14 and 16, and the inner set of layers 18, 22 and 24;
2) laminating (604) outer set and inner sets of layers to create the gel cavities and living or soft hinges in the desired locations, while leaving one or more gel injection sites in the lamination lines or locations;
3) injecting (606) the gel into the laminated panel using the one or more injection sites;
4) laminating (608) closed the injection sites;
5) cutting (610) the laminated panels with gel inserted along predetermined lamination points to form the insulated panel in the desired shape; and
6) constructing (612) the layered textile bag bas assembling the cut gel filled laminated panels.
Those of skill in the art will appreciate that “constructing” the bag is intended to mean assembling the panels so they form the desired bag, and adding a zipper or other closure means for the same. In addition, with this manufacturing, a minimum of two (2) layered panels can be used to construct a fully functional insulated bag in accordance with the present principles.
While there have been shown, described and pointed out fundamental novel features of the present principles, it will be understood that various omissions, substitutions and changes in the form and details of the methods described and devices illustrated, and in their operation, may be made by those skilled in the art without departing from the spirit of the same. For example, it is expressly intended that all combinations of those elements and/or method steps which perform substantially the same function in substantially the same way to achieve the same results are within the scope of the present principles. Moreover, it should be recognized that structures and/or elements and/or method steps shown and/or described in connection with any disclosed form or implementation of the present principles may be incorporated in any other disclosed, described or suggested form or implementation as a general matter of design choice. It is the intention, therefore, to be limited only as indicated by the scope of the claims appended hereto.
This application claims priority from U.S. Provisional Patent Application Ser. No. 62/128,762 filed on Mar. 5, 2015.
Number | Date | Country | |
---|---|---|---|
62128762 | Mar 2015 | US |