DE1631603U - AIR-TIGHT PACKAGING, IN PARTICULAR FIRE CHOCOLATE BARS AND BARS. - Google Patents

Description

Utility model registration Airtight packaging, in particular for chocolate bars and Bars.

The innovation concerns a chocolate packaging, which is airtight Envelopment of the chocolate bars and bars is guaranteed and, at the same time, a mothproof packaging results.

Nan already has aluminum or plastic foils for such packs is used and the type of folding achieves a tight-fitting closure, but the folds did not allow a material connection between the folds.

Even when applying a hot-melt adhesive coating to the wrapping film only a sealing of the paint layers was achieved, but the disadvantage occurred, that by the action of heat when sealing by means of thermally heated press jaws the packaged goods were impaired or showed signs of melting.

Therefore, it is proposed according to the innovation, an envelope made of weldable Polymer-plastic films or associated aluminum or paper webs that z. B. are made using polymerized vinyl chloride, to be used, which are placed around the packaged goods as a folding pack and on the one on top of the other Rebate layers are materially welded by heat impulses. The Wrap folded in a U-shape around the packaging item, the open ones Ends of the envelope are welded at the edges and the protruding ends on the packaging item folded.

The envelope can also consist of 2 parts, e.g. D. from a folded Lower part and an applied cover sheet consist of both t> are welded together at the edges.

After this airtight wrapping process, the packaging in known way, e.g. B. provided with a wrapper in the case of chocolate bars or else be closed with a full-page envelope.

In this way, the packaged goods can be airtight and mothproof envelop and is therefore against external influences that promote drying out and also completely protected against loss of moisture and aroma.

The packaging is particularly suitable for wrapping chocolate bars and bars - especially since the edge parts of the casing are only briefly welded Heated to the width of the weld seam by a heat impulse and cooled under pressure can be so that the welding heat is not transferred to the packaged goods. This welding process creates a material monitoring at the weld seam, which favors the tearing off of an edge part in order to open the pack. The serving remainder can still be used as a closed bag for the The rest of the product can be used again.

The tearing of the edge part can also be promoted through incisions at the ends of the weld seam.

Figures 1-4 show an example of the new type of packaging.

According to Fig. 1, the plastic film section (I) is folded into a U-shape around the object to be wrapped (2).

The protruding edges (3) are shown in Fig. 2 at the points (4) and then turned over by a welding process with a limited welding area, e.g. B. materially welded in the case of a heat pulse or high frequency and onto the pack folded around as shown in Fig. 3. This is followed by the third edge (5) of the envelope Fig. 3 welded in the longitudinal line (6).

Then the welded edge part (5) according to Fig. 4 folded onto the pack. t> To facilitate opening of the packaging, at the edge points (7) Incisions or cutouts are made.

This type of packaging can be used for prismatic objects of all kinds, such as snacks and luxury foods, chemical and pharmaceutical products with high air and water vapor density, envelop and also keep textiles mothproof. Protection requirements

Claims (4)

Protection claims 1. Airtight packaging - especially for chocolate bars and bars - characterized by an envelope made of a heat-weldable plastic film, which z. B. made of polymer eated vinyl chloride or related. lu or paper webs are produced, which are placed around the packaged goods as a folding pack and welded together at the edges. 2. Airtight packaging according to claim 1, characterized in that that the packaging object u-shaped fallen surrounding envelope to the open Edges welded and with their protruding ends on the packaging item is folded. 3, airtight packaging according to claim 2, characterized in that that the packaging is provided with a wrapper, or in a gas-side Envelope takes place. 4. Airtight packaging according to claims 1-3, as described and shown.