EP1740476B1 - Bag with an information surface - Google Patents

Abstract

The invention relates to a bag with a wall (1), which is comprised of at least one ply made of flexible material from which a tubular shape with two open ends is formed by folding down sections in a longitudinal direction and by a strip-shaped permanent joining (2) together of the sections, which are folded down and placed against one another, said joining extending in a longitudinal direction. Of the two ends, a first end is closed for filling the bag, and a second end is to be closed once the bag has been filled. An outer side of an outer ply (3) of the wall (1) is printed. Additional easily accessible information surfaces (10, 10') are produced during the production of the bag in such a manner that one of the sections of the outer ply (3), together with an end piece (4), projects beyond the bonding (2) and, together with its free end, can be attached in an easily detachable manner to the area of the outer ply (3) located thereunder, and in that an additional information surface (10, 10') can be exposed after the end piece (4) has been detached.

Description

The invention relates to a bag with a wall consisting of at least one layer of flexible material, from which formed by folding over portions in a longitudinal direction and a longitudinally extending strip-shaped permanent connection of the folded and superimposed portions with each other a tubular shape with two open ends is, of which a first end for filling the bag closed and a second end is provided for closing after filling, wherein an outer side of an outer layer of the wall is printed.

Such bags can be made in many embodiments. In particular, plastic films and paper layers, in particular power sack paper layers, come into consideration as flexible materials. In heavy-duty bags made of kraft sack paper layers usually a multilayer construction is realized, with an intermediate layer can be inserted as a vapor or moisture barrier from a plastic film. In particular, for lower loads, the bag can also be formed in one layer, so that the one layer also forms the outer layer of the bag wall.

FR 2 667 846 A1 discloses a single-ply bag in the form of a shopping bag, which has a large front and back, which are interconnected via a fold line. In the area of the fold line additional layers are fixed, which are fixed with their free ends with adhesive dots on the said large areas. By tearing the adhesive points on the covered by the double layers, the front and back of the bag forming pieces of wall and on the inside of the additional wall existing information and illustrations can be perceived. By tearing open the double walls thus additional information surfaces are available.

The closure of the bag at its first (the bottom forming end) can be done by gluing, welding or preferably by the formation of a folded and glued bag bottom. Conventional are cross bottoms and block bottoms, which require a rectangular bottom shape an at least approximately rectangular cross-section of the bag during filling.

The bag can be filled as an open-topped bag and then closed the opening of the top, for example, by multiple folding and / or gluing, sewing or the like. It is also known, even before filling and at the second end form a folded and glued bottom, which has an optionally provided with a valve tube filling opening. The closure of such a valve bag takes place after filling by closing the valve by gluing, welding or merely flattening, for example by means of the filling pressure of the filled bag when it is dropped after filling on the bottom provided with the filling valve.

The known bags are at least partially printed on their outer layer to identify the bag contents, to carry out a product promotion and give the user information on the use of the contents. The internationalization of trade implies that the instructions for use must be given in several languages so that the instructions for use can be understood in all the countries to which the product is exported. Already by the enlargement of the common European market a considerable increase of official languages of the concerned countries is to be noted. As a result, more and more information surface for user instructions must be made available on sacks of the type mentioned. For a given bag size, the available information surface is limited. In order to accommodate the required information, therefore, they must be printed smaller and smaller, whereby the readability of the information that must be given in everyday use, is severely impaired.

The DE 203 12 185 U1 contains an indication of a suggestion to print the inner side of the outer layer in a multi-ply bag, so that when opening the bag, the outer layer is torn to note the instructions for use on the inside of the outer layer. This solution is unusable, because the stability of the bag must be fully maintained even during or after opening in order to handle the optionally opened sack everyday use. As a result, therefore, the bag would have to be made with an additional layer just to print the information. Since the outer layer is directly subject to the environmental influences during transport, the outer layer must be resistant, so consuming, constructed, for example, with kraft sack paper. The costs resulting from the additional location make the solution uneconomical. DE 203 12 185 U1 Therefore, there is the suggestion to attach subsequently to the bag information material, for example in the form of a Leporello, for example by gluing. This solution is also expensive, requires special process steps after the preparation of the bag and also does not ensure that the additional notes attached are not demolished during rough handling of bags during transport and storage and therefore are no longer available to the user ,

The present invention is therefore an object of the invention to provide a bag of the type mentioned above, having additional information surfaces, without having to be subsequently attached to him.

To achieve this object, a bag of the type mentioned is inventively characterized in that both ends of the wall are folded and glued to a rectangular bag shape of the filled bag conditional soil and the bottom at the second end has a filling opening that one of the sections of the outer layer with an end piece protruding beyond the connection, extending around an edge to an adjacent side of the wall and being fastened with its free end easily detachable to the underlying outer layer, that an additional information surface can be exposed after release of the end piece and that End piece is included in the folding of the floors and at the transition to the folded bottom has a tear perforation, which extends to the permanent connection.

The release of the easily detachable connection of the tail from the underlying portion of the outer layer leads to a Aufklappbarkeit the tail around the required for the tubular shape strip-shaped permanent connection around.

The additional information surface can preferably be exposed by printing on the inside of the tail for the user, without affecting the stability of the bag is affected. Alternatively or additionally, a printed insert sheet may preferably be introduced between the end piece and the underlying region of the outer layer, whereby an information surface corresponding to the size of the two sides of the insert sheet is available.

According to the invention, both ends of the bag are folded and glued to form the rectangular bag shape of the filled bag. The tail is in the Folding of the soil included. This is favorable in terms of production, because the production of the bag can be done in a conventional manner with a widened to the tail outer layer, which has the same length in the region of the tail, as needed for the preparation of the bag with the bottom folds. The tail has a tear perforation at the transition to the folded bottom which extends to the permanent connection. The tearing of the tail in the width direction of the bag required by the folding of the tail in the bottom area can be accomplished with a tear perforation cleaner and without the risk of tearing required information surfaces.

The permanent connection is preferably arranged as a strip-shaped adhesive bond and preferably centrally on a large side of the parallelepiped-shaped bag in the filled state. The tail may then extend to an edge of the bag representing the transition to a small sack side, but preferably also around the edge except for the adjacent small side of the sack. An enlargement of the hinged end piece is of course also possible in that the position of the permanent connection on the large side of the bag is moved away from the edge to which the end piece extends.

In the additional enlargement of the information surface by an inserted insert sheet preferably also the insert sheet is included in the folding of the soil. This makes it possible to fix the insert sheet exclusively by the folding of the bottom of the outer layer. Since the insert sheet is protected by the outer layer of the bag, it may be formed of a comparatively simple paper and is thus easily torn off in the area of the transition to the folded bottom in the width direction of the bag, whereby this tearing can be supported by a tear perforation.

The present invention thus makes it possible to realize at least one additional information surface for which the manufacture of the bag does not fundamentally have to be changed and which is made available in the production process of the bag, that is to say no subsequent steps, for example for attaching a separately prepared and packed information surface. requires.

• Fig. 1 eine perspektivische Ansicht einer Ausführungsform eines erfindungsgemäßen Sackes in einem gefüllten Zustand;
• Fig. 2 eine perspektivische Darstellung gemäß Fig. 1 mit einem zur Freilegung von Informationsflächen aufgeklappten Abschnitt der Außenlage;
• Fig. 3 eine Ansicht gemäß Fig. 2 mit einem zusätzlich eingebrachten Einlegeblatt.

The invention will be explained in more detail below with reference to an embodiment shown in the drawing. Show it:

• Fig. 1 a perspective view of an embodiment of a bag according to the invention in a filled state;
• Fig. 2 a perspective view according to Fig. 1 with a section of the outer layer unfolded to expose information surfaces;
• Fig. 3 a view according to Fig. 2 with an additional insert sheet.

The in Fig. 1 in the filled state illustrated bag has a cylindrical jacket wall 1, which is closed in a tubular manner by means of a strip-shaped adhesive bond 2. The bonding is in FIG. 1 drawn dashed lines for an outer layer 3 of the multi-layer paper bag. The outer layer 3 is extended with an end piece 4 on the bond 2 addition. The end piece 4 is fixed with its free end 5 to an underlying region of the outer layer 3, for example by a (not shown) applied strip-shaped pressure-sensitive adhesive, which is easily solvable.

In the illustrated embodiment, the tube formed by the wall 1 is closed with a first bottom 6 at the bottom and a second bottom 7 on the top. For this purpose, the corresponding ends of the wall 1 in a known manner to the bottom 6, 7, here in each case a cross bottom, folded and glued. In a known manner, a valve tube 8 is inserted between the ground impacts and the corner impact of the cross bottom and the bottom covered with a bottom cover sheet 9.

In Fig. 1 is indicated by dashed lines one of the tail 4 covered information surface 10, which is provided for printing, for example, with instructions for use.

Fig. 1 further illustrates that starting from the free edge 5 of the tail 4, starting at the transition to the bottom 6, 7 each have a perforation 11 is provided in the end piece 4, which extends up to the bond 2 out.

Fig. 2 illustrates that the tail 4 at the free edge 5, for example, by peeling off the pressure-sensitive adhesive surface and by tearing along the perforation 11 to the permanent adhesive line 2 is hinged, so that the information surface 10 on the originally covered by the tail 4 outside of the outer layer 3 is exposed. In addition, the end piece 4 may also be printed on its inner surface 12 with an information surface 10 '.

The FIGS. 1 and 2 make it clear that the end piece 4 has a length such that it is folded into the bottoms 6, 7. For the in Fig. 2 shown folding down the End piece 4 of the outer layer 3 of the wall 1, therefore, both the fixation of the end edge 5 of the tail 4 must be solved as well as a separation of the tail 4 of the protruding into the floors 6, 7 sections, which is facilitated by means of the perforation lines 11.

The illustrated embodiment shows an end piece 4 which extends from the glue line 2 on the middle of a large side of the wall 1 around an edge 13 to an adjacent small side wall of the wall 1. This has the advantage that the fastening of the end piece 4 to the underlying region of the outer layer 3 takes place on the small side wall, so that the large side wall is available up to the edge 13 for the information surface 10.

At the in Fig. 3 illustrated embodiment, an insert sheet 14 is introduced into the space between the end piece 4 and the underlying portion of the outer layer 3, which can be printed on both sides and thus provides more information surfaces available.

The insert sheet 14 has a width which is slightly smaller than the distance between the bond 2 and the edge 13. The length of the insert blade 14 is selected so that the insert sheet 14 is folded with both ends into the bottoms 6, 7 and is thus connected to the outer layer 3. A further connection with the outer layer 3, for example by gluing or the like, therefore unnecessary, so that the information surface of the insert sheet 14 is not reduced by adhesive surfaces or the like.

It is readily apparent to those skilled in the art that the insert sheet 14 during the normal manufacturing process of Sackes is introduced, so that after the actual manufacturing process of the bag for the information surfaces 10, 10 'nor for the information surfaces of the insert 14 additional process steps are required.

Since the tail 4 is formed from the material of the resistively formed outer layer 3, the information surfaces 10, 10 'and the approximately introduced insert sheet 14 are reliably protected during transport, without requiring additional effort would be required.

Claims (6)

1. Bag having a wall (1) which consists of at least one layer of flexible material, from which, by means of folding over sections in a longitudinal direction and a strip-like permanent connection (2) running in the longitudinal direction between the sections folded over and placed on one another, a tubular form having two open ends is formed, of which a first end is closed in order to fill the bag and a second end is provided to be closed after the filling, an outer side of an outer layer (3) of the wall (1) being printed, characterized in that both ends of the wall (1) are folded and bonded adhesively to form a base (6, 7) causing a rectangular bag shape of the filled bag, and the base (7) at the second end has a filling opening (8), in that one of the sections of the outer layer (3) projects with an end piece (4) beyond the connection (2), extends around an edge (13) as far as an adjacent side of the wall (1) and is fixed by its free end (5), such that it can be detached easily, to the outer layer (3) lying under it, in that an additional information area (10, 10') can be exposed after the end piece (4) has been detached, and in that the end piece (4) is incorporated into the fold of the bases (6, 7) and, at the transition to the folded base (6, 7), has a tear-off perforation (11) which extends as far as the permanent connection (2).
2. Bag according to Claim 1, characterized in that the end piece (4) is printed on its inner side.
3. Bag according to Claim 1 or 2, characterized in that the permanent connection (2) is arranged centrally on a large side of the wall (1) of the bag.
4. Bag according to one of Claims 1 to 3, characterized in that a printed insert sheet (14) is introduced between the end piece (4) and that region of the outer layer (3) which is located underneath it.
5. Bag according to Claim 4, characterized in that the insert sheet (14) is incorporated into the fold of the base (6, 7).
6. Bag according to Claim 5, characterized in that the insert sheet (14) is fixed to the outer layer (3) exclusively by the fold of the base (6, 7).

Images