| 摘要 |
This invention concerns a multifunctional cold pack comprising: a plurality of nonpermeable, flexible heat-sealable film layers each having a perimeter and being located in a first plane. The plurality of nonpermeable, flexible heat-sealable film layers are heat sealed together at the perimeters to form an interior cavity concentrically enclosed thereby and the interior cavity is geometrically contoured to coexist between the first plane and a second plane located parallel to the first plane. The plurality of nonpermeable, flexible heat-sealable film layers are constructed of a transparent material. A clear gelatinous material is encapsulated without substantial air contamination within the interior cavity and has temperature regulation, flexibility, and load-bearing properties. At least one insert is moldably movable and semi-rigidly placed in the clear gelatinous material and is sized, shaped, and dimensioned to be interposed between the plurality of nonpermeable, flexible heat-sealable film layers. The multifunctional cold pack thereby allows each insert to be viewed through the plurality of nonpermeable, flexible heat-sealable film layers and the clear gelatinous material and imparts optical effects when each insert is so viewed. The multifunctional cold pack has a pleasant tactual texture when applying external pressure force to touch the plurality of nonpermeable, flexible heat-sealable film layers or to flex the multifunctional cold pack. The multifunctional cold pack is elastic and aesthetically appealing and thereby provides means for cooling, supporting, medicinal, advertising, entertaining, and shipping. A method of making a printed cold pack is also provided and comprises the steps of: laying a coiled first film layer onto a support device; forming the laid first film layer to create a cavity; partially filling the cavity of the formed first film layer with a gelatinous material; chilling the gelatinous material in the partially filled cavity; placing a printed insert in the partially filled cavity; chilling the gelatinous material supporting the placed printed insert in the partially filled cavity; completely filling the partially filled cavity with the gelatinous material to encapsulate the placed printed insert; chilling the gelatinous material encapsulating the placed printed insert in the completely filled cavity; laying a coiled second film layer over the completely filled cavity; sealing the laid second film layer to the laid first film layer to sealingly enclose the gelatinous material and placed printed insert to form a printed cold pack; moving the support device aside and conveying the formed printed cold pack; cutting the sealed second film layer and the sealed first film layer on the conveyed printed cold pack; and ejecting the cut printed cold pack to a packaging device and collecting the scrap film layer.
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