DE2946417A1 - PACKAGING FOR FOODSTUFFS AND METHOD FOR SEALING THIS PACKAGING - Google Patents

Description

Patent attorneys

3 ^ «= * ^29A6417

BüJü M'j

luc.lt uuf.r. SU U, Te !. IU89) 472947

UNILEVER N.V.

Burgemeester s'Jacobplein 1 Rotterdam / Netherlands

November 16, 1979 M / Tr "* ' U 2310 (R)

PACKAGING FOR FOOD AND METHOD FOR SEALING THIS PACKAGING

The invention relates to a cardboard packaging for essentially solid foods and similar filling goods. It is particularly suitable for semi-finished baked goods. It consists of a bag-like Inner packaging that holds the food and from a folding box that surrounds the inner packaging.

The internal coating is expediently made of a material this when preparing the food, especially when it is renewed Heating, can be used advantageously as a base or covering. Such a suitable material is, for example, parchment substitute paper, and it is favorable for this purpose if such a paper is heat-resistant and anti-adhesive on its outside is coated. A particularly suitable material is parchment substitute paper coated with silicone on the outside, which can also be used on hot pans, Baking trays o.a. does not stick. However, this coating is also adhesive-repellent.

For the packaging process, the use of very smooth and non-adhesive coated papers iedoch some difficulties,. ") since these papers can hardly be grasped and held by the usual holding means and folding tools of the packaging machines, or only with considerable inaccuracies.

The invention aims to provide a Verridckunn with an antiadhesive . '.' j tx "> thι chteten bag-like inrienirickung be improved so that

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a simple packaging process is possible.

The invention also relates to the method of closing the improved Packaging, the bag-like inner packaging at at least one end at the same time as the folding box is being closed should be completed and fastened in the cold box.

According to the invention it is provided that the bag-like or hose-like inner nacking consists of an externally heat-resistant and anti-adhesive coated material, preferably made of parchment substitute paper coated with silicone, a longitudinal seam in which the edges of the inner surface are glued together and one edge is extended and folded over over this longitudinal seam, IS that a strip of the inner surface next to the longitudinal seam to the outside has and this strip or parts of this strip are glued to the inside of the folding box blank, preferably the Connections between the inner packaging and the folding box are detachable in order to separate the two packaging parts again to be able to separate.

A folding box is preferably used, which has a means A longitudinal adhesive flap has a fuselage glued together in the form of a hose and closure flaps on two opposite sides. the The length of the inner packaging is greater than the length to be measured in the same direction (the longitudinal direction of the box body) finished folding box or its base, and the inner packaging with the strip of its inner surface facing outwards next to its longitudinal seam with at least one closure flap glued to the folding box so that it can be separated. The connection between the inner packaging and the foldable box is expediently made, before the blank is folded and glued using its longitudinal adhesive flap. At the back of the food Then the folding box is erected and the inner packaging

3b opened, for example, by blowing ^{air on its opening i +} , e.

After inserting the food «: the closing flap,

cover attached i ^ t,

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to which the internal coating is attached. by up to 45 to the outside

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bent over, causing the open ends of the inner packaging / usaiiniien 1 efjen. Then the on the narrow sides of the folding box located so-called dust flaps folded, the at least the side edges of the ingressive pack together.

^l press j. Now the inner closure flap with the end of the inner curtain attached to it is opened. As a result, the inner packaging is bent around an edge of the dust flaps by about 90 and is thus adequately closed, and the ends are clamped between the dust flaps and the inner closure flap.

Finally, the outer flap is folded onto the inner one and glued or sealed.

In particular if the inner packaging is a tube that is open at both ends, the folding box can protrude on the sides in the above Ib described way are closed.

Although the non-adhesive silicone coated outer surface of the inner packaging does not result in an adhesive bond mi ', the folding box, Thanks to the special design of the longitudinal seam of the inner packaging, it was possible to glue it to the box, and thereby it was still possible to use the inner packaging attached to the box To be handled in such a way that the packaging and sealing process can also be carried out with conventional, high-speed packaging machines can be done. The attachment of the inner packaging by gluing and pinching its ends prevents it from being able to slide on its very smooth surface Outer surface to slide back and forth in the folding box and thus contributes to the protection of the packaged product.

Further details of the invention can be found in the exemplary embodiment on the accompanying schematic drawings.

Fig. 1 shows a folding box blank with glued-on inner packaging ;

Fig. 2 shows a longitudinal section through a package that is attached to a The end is only partially closed is + .;

Mg. 3 shows a section through a LncJe piner closed packaging according to III-1I! in ^r <i. '? ,

Fig. 4 shows a section through the longitudinal seam of the inner packaging and the adhesive connection with "ικηπ. Faltschachteltei1.

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BATH ORIGINAL

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The folding box blank consists of a bottom surface 1, a upper surface 2, two narrow sides 3, 4, a longitudinal adhesive flap 5 and has outer closing caps 6, inner closing flaps 7 and dust flaps B. - The inner packaging 10 is a gusset -

b tube made of pen jament substitute, dds one on the outer surface has coating 11 made of silicone. The hose has a longitudinal seam 12 in which, after folding over an edge 13 of the hose blank the inner surfaces of both edges 13, 15 glued together by 180 ° are. The folded edge 13 is wider than required for the longitudinal seam 12 or than the other edge 15. As a result Of this, in addition to the longitudinal seam 12, the inner surface of the edge 13 points outwards as an adhesive strip 13a and can be at adhesive points 14 with a folding box part, e.g. an inner closing flap 7 are glued (Fig. 4).

After the inner packaging 10 has been placed on the bottom surface 1 and the inner closure flaps 7 located on it, the Strips 13a connected to the folding box blank at points at the adhesive points 14, the blank is folded up and the longitudinal adhesive flap 5 glued.

The folding box is erected for the packaging process Inner packaging opened and the product inserted. To close the packaging, the inner closing flap 7 is first outwards, i.e. bent against the direction of wear. Included pull the ends of the inner packaging 10 together and are about on the bending edge between the bottom surface 1 and the inner closure flap 7. Now the dust flaps 8 are folded in, with At least the side folds of the in-line packaging are clamped between one edge of the dust flaps 8 and the bottom surface 1. Now the inner closure flap 7 with the end of the inner packaging 10 attached to it is folded against the dust flaps 8. the previous jamming of the side folds leads to a relatively sharp kink of the Innenverpackurxj 10 made in this way as well as by the pinching of its end; · between the dust flaps 8 and the inner clasp 7 closed quite well will. Then the outer flaps 6 are on the inner flaps 7 attached.

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The adhesive points 14 hold the inner packaging 10 until after it has been inserted of the contents, not shown, e.g. a round frozen one Pizza base, securely in the folding box, firmly and enable thus a mechanical packaging process in those with silicone

b coated inner packaging. This and thus also the product are also held securely in the box by pinching the ends. After opening the box, the only point-by-point can be attached Inner packaging can be easily detached from the box and removed with the contents. The inner packaging can then be used in the further Preparation of the packaged food, e.g. as a base under the pizza on a baking sheet or in a similar way as protective paper. The longitudinal seam can be folded over by 180 ° so that the uncoated side of the strip 13a no longer points outwards.

The described process of closing the box can can of course also be used to advantage in the event that the Food first placed in a bag-like inner packaging and then in this inner packaging in the erected folding box is inserted. In this case, too, there is now a point-by-point Bonding between the strip 13a and the inner closure flap 7 and then the above-described folding process through which the layer the internal caking in the folding box 'is secured.

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L e r s e i t e

Claims (4)

U 2310 (R) ANSPRUC HJ. 1.! Packaging for food, especially for semi-finished products Baked goods, consisting of a bag-like inner packaging that the food takes up, and from a folding box that holds the Surrounds inner packaging, characterized in that the bag-like b Inner packaging (10) consists of parchment substitute paper or similar material that is heat-resistant and heat-resistant on the outer surface (11) is anti-adhesive coated, and the inner packaging (10) has a longitudinal seam (12) in which the edges (13, 15) of the inner surface are glued together and an edge (13) extended and folded over is that a strip (13a) of the inner surface next to the longitudinal seam (12) pointing outwards, and that the outwardly pointing strip (13a) is glued on the inside of the folding box in a separable manner. 2. Packaging according to claim 1 using a tubular Folding box to be glued with flaps on two opposite sides Pages, characterized in that the length of the inner packaging (10) is greater than that measured in the same direction Length of the erected folding box and the inner packaging (10) at both ends with the outward-facing strips (13a) of the inner surfaces with the closing flaps (7) of the folding box is glued. 3. Packaging according to claim 2, characterized in that the Ends of the inner packaging (10) at least between the folded dust flaps (8) and the inner flap (7) are jammed. 4. A method for closing a »Vc pack according to claim 2 or 3, characterized in that r.ac ¹ the fastening of the bag-like inner packaging to the inner closure flaps and the insertion of the food into cne erected folding box, the inner closure usskl .-. Pntr int the ends of the inner packaging bent slightly outwards, the dust flaps folded in and at least the rind * 'of the inner packaging pressed together, then the inner: / ^, closing flaps with the ends of the inner packaging up to'<V..age ^ n the dust flaps 130027/0006 BAD ORIGINAL ORIGINAL INSPECTED U 2310 (H) eiii () efolded and then the outer ones in a known manner left flaps on the inner cover flaps (folded and L will be. 1 30027/0006 COPY