DE1942966A1 - Aseptic packaging - Google Patents

Description

Dipl.-Ing. Egon Prinz 22 Aug 1960

Dr. Gertrud Hauser Dipl.-Ing. Gottfried Leiser

Patent Attorneys 1 Q I OQ C. C

ΘΟΟΟ MUn9hen-Pa8lna I -J t Z. CJ O Q

Ernsbergerstrasse 19

! COVER PRODUCTS, IHO. 1150 South Willis Avenue Chicago, Illinois / V.St.A.

Our reference: Q? 787

Aseptic packaging

The present invention relates to aseptic packaging and relates in particular to fine sterile packaging for, for example, medical Ineti unente as well medical accessories. This packaging is then used if a considerable degree of sterility is to be guaranteed.

In particular, the invention relates to packaging made from consists of individual foils of material, whereby this pollen uragefold are, so that opposing walls are created that can be welded to their bands in a thermoplastic way. These welds can to be released again in the cold. According to the invention Packaging can be designed in such a way that the packaging can then be sterilized, for example in an atmosphere of sterile nitrogen, ethylene oxide, flatrium hypoohloriddampf or other known ones

Dr So / ßl sterilizing

009810/0478

sterilizing gases or mixtures thereof »where also a sterilization using What kind of steam can it do in an autoclave?

As mentioned above, there is the packaging according to the invention from a single sheet of material that is folded over, There are longitudinal seals as well as near the side edges a transverse seal extending from the folded hand. In this state, an object can be placed in the packaging be introduced, whereupon the remaining open ends or edges are closed, then is the sealed package subjected to the sterilization described above.

The polienmaterial from which the packaging according to the invention is made can be made of a metal foil, paper, such as glassine, or another paper that is coated with a synthetic resin-like material, or of a transparent or translucent EXinetatoffmaterial, which is made of a synthetic resin , such as polyethylene, polypropylene or Ψ a cellulosic material composed, such as cellophane, cellulose acetate or the like. They linear Abdichtunga- or splices may be made of a coating on the inner surface of the folded sheet are made · The coating may further be applied to selected locations ₀ The resin or adhesive, which is applied to one of the inner surfaces may be different from that which is piled up on the opposite surface. In this way, a heat-sensitive coating can be formed which causes a seal in the heat, whereby the

Final 009810/0478

End, however, without the action of heat by pulling it off again can be solved. Ser-like peelable coatings are known. Bs comes any of the well known peelable or resealable ones Coating in embossing, with the new verse * - gelability or closability not essential Factor is.

The film material from which the packaging according to the invention is produced preferably consists of a mixture of a high-density polyethylene and about 30 to about 55 weight percent of a synthetic rubber such as polyisobutylene. This material is characterized in that it has been melted and extruded, for example by blow extrusion, ^{at a temperature of approximately 271-304 0} C ( ^{520-580 0 P).}

The invention is explained in more detail with reference to the accompanying drawings. . .

FIG. 1 is a perspective view of one according to the invention manufactured packaging.

FIG. 2 shows a perspective view of the packaging according to FIG. 1, which has been partially opened.

Figure 3 is also a perspective view showing the separation of the opposing foils that make up the packaging according to Figures 1 and 2 assembled, shows.

FIG. 4 is a plan view of the bag or the envelope according to FIG of the present invention before it has been finally sealed.

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FIG. 5 shows a section along the line 5-5 of FIG.

Figure 6 is a perspective view of a sheet of material, those for the production of the bag or the envelope according to FIG. 4 is folded over.

In the drawings (in particular in FIGS. 4 »5 and 6) the reference number 10 indicates a material film which has the surfaces 11 and 12. The film is folded in the tube along the line 13, whereby the surface 12 is folded against the surface 11, as can be seen from FIGS. 4 and 5

The double film is then closed along its side edges 14 and 15, the linear seal extending along the full length of the bag. This seal extends as far as the fold line 13 and at least between the longitudinal seals 14 and 15. The cover is provided with one or two notches 17, 17 at the bottom, which are tucked away by Serbs. found outside the Abälchtungdn 14 and 15 and zvi- "see the folded strip 13 and the sealing sixteenth

Then you can put an object in the non-locked end Insert 18 of the pouch, whereupon the pouch transversely by means of the seal 19 to form a completely closed packaging.

The packaging can then be sterilized in the manner mentioned will.

To get to the contents of the packaging, the folded End of the packaging with the help of the notches 17 in the transverse

direction to the packaging are torn open · In a two-way manner, the procedure is such that the packaging is held in such a way "that the orientation direction runs in the transverse direction to the packaging yar, as indicated by the! colors 17" After the duroh ^! The seals 14, 15 and 16 as well as the bag defined by the fold 13 has been broken by removing the sand 20, for example by tearing it in the manner indicated in FIG. 2, the layers 11 and 12 can be separated in the manner shown in FIG , and swar by pulling apart the Ziängsabdiohtungen 14 and 15 and attaching the seal 16. In this way you can get to the contents of the packaging without dragging in dirt, for example by means of tweezers, which are easily located between the folds or 11 and 12 brings in »

It should be pointed out that the area above the seal 16 and between the longitudinal seals 14 and 15 and the fold line 1? is kept fully closed and can be sterilized, ao that it can have no accumulation of dust, bacteria or the like held between the film layers 11 and 12 at the open end of Beutele. Such impurities can also not get to the packaged product during opening. This is the main difference to the previously known packaging. These also consist of seals similar to the seals 14, 15 »16 and 19, as well as two separate layers, but they are open at the folding line 13. If a folding line 13 is provided, openings are made on the rare sites of the packaging between the sealing line and the fold line 13 is created. It is therefore obvious that the packaging according to the invention is particularly suitable for medical purposes, since it is supplied with a product

pleases. 009810/0478

Sealed and sterilized duroh exposure to heat can be. Optionally, the product can be made from this packaging can be removed on aseptic catfish without being a contradiction occurs »as in the case of use the mower's usual packaging was the case.

009810/0478

Claims (1)

Claims Bags or bags made of an at least partially transparent or translucent thermoplastic material, characterized in that a film is formed opposing faces, which are integrally connected in a fold line at one of their ends, is folded » linear seals in the height of the opposite side edges of the pollen are attached and one inner linear seal is provided »which in the saw "but located at a certain distance from the integrally connected ends", the faces at the opposite ends are designed in such a way that after the introduction of an object they are together can be connected. 2. Bag or envelope according to claim 1 »characterized in that it is designed in such a way» that an object can be introduced »whereupon the ends are closed. 3. Bag or envelope according to claim 1, characterized in »that the inner linear seal of the closed side edges extended towards the folded end 4 · Bag or envelope according to claim 1 »characterized» that the linear seals from one another are separable " Ü08810 / 0478 5. Bsratel oäar casing according Anspntoh 1, characterized in that _f lake at least one side with a notch provided »DL® aiseserhalb to the side seal line and swieehen isx middle üMichtungsliiaie and the folded 6-, Sh © rm © gl®stie © lieiiig Tsrsühly edible eowie cold apartis.ishijaafes Felieaiaaeial! gekennselchnet through an Mi-P Bcliung au® a high density polyethylene and about 30 his about 35 weight ^ of polyisobutylenes _t wherein äse material at a Semper * door of about 271 - 304- ⁰ O (§2Q - 580®F) göBohmolzen has been. 7. Bag or envelope according to claim 1 _S ip ^ mroh characterized that the eioh opposite Wx, ^ n consist of separate foils _f which at one of their ends mi% ^^, ^ Mü ⁽ BT connected in a sealing manner, BAD ORSGiNAL 0098 10/04 78