CA2197325A1 - Self-supporting solvent package - Google Patents
Self-supporting solvent packageInfo
- Publication number
- CA2197325A1 CA2197325A1 CA 2197325 CA2197325A CA2197325A1 CA 2197325 A1 CA2197325 A1 CA 2197325A1 CA 2197325 CA2197325 CA 2197325 CA 2197325 A CA2197325 A CA 2197325A CA 2197325 A1 CA2197325 A1 CA 2197325A1
- Authority
- CA
- Canada
- Prior art keywords
- package
- sealing seam
- base
- edge
- over
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5861—Spouts
- B65D75/5872—Non-integral spouts
- B65D75/5877—Non-integral spouts connected to a planar surface of the package wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/008—Standing pouches, i.e. "Standbeutel"
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Cartons (AREA)
- Laminated Bodies (AREA)
Abstract
The description relates to a self-supporting solvent package of flexible, sealable material, with a base (1), side walls (2, 2', 4, 5), sealing seams bonding the walls and a pourer. In order to be able to use less material of simpler quality, e.g. with a lower modulus of elasticity in tension, while retaining good self-supporting properties for a predetermined capacity, the invention proposes that the quotient of the relation between the filling volume of the package to the latter's area and the ratio between the filling volume and the spherical area be between 0.8 and 0.85 and the dimension of the package be such that A:B = 0.5 to 0.99, ((A+B)/2):C = 0.9 to 1.7, ((A+B)/2.C):E = 50 to 120 units of length, F:[(A+B)/2+C] = 1 to 0, and G:A = 0 to 1.3, in which A = bottom front edge of the package; B = bottom rear edge; C
= lateral bottom edge; E = front height projection; F = front longitudinal edge; G = rear upper edge; with a good modulus of elasticity in tension, ratio between the thickness of the package material and its filling volume and good angles of inclination.
= lateral bottom edge; E = front height projection; F = front longitudinal edge; G = rear upper edge; with a good modulus of elasticity in tension, ratio between the thickness of the package material and its filling volume and good angles of inclination.
Description
-The invention relates to a standable package for flowable media made from flexible, sealable material, with a base, with side walls, with sealing seams joining the walls and with a pouring means.
Known packages for flowable media of this type are presently sold commercially as coloured bags and refill packs for cleaning agents. The material of the package is a sealable plastics in several layers in order to produce a sealed and rigid package such that it is also capable of standing 15 when filled. The side walls are pressed flat at the top and joined to a longitudinal sealing seam extending as far as the base, while the base is sealed in additionally and thereby the lower edges of the side walls are spread out such that the known package, which is wider at the bottom and narrower at the top, can stand on the lower edges of the side walls. Either a closure or 20 a cut-out or a marking is provided in the upper area as the pouring means, sothat the end-user either opens the closure or tears off or cuts off a tab in order to pour out the liquid.
The known standing bag achieves its standing capability at a high cost in 25 terms of multi-layered plastics foil material, which causes re-cycling problems because the separation of the individual layers by material is difficult. The insertion of an additional material strip for the base lining increases the costof the materials and the manufacturing process of the known package.
30 The object of the present invention is therefore to improve a package for flowable media of the type described in the introduction such that for a pre-determined amount of contents less, and qualitatively more simple, material - 219732~
can be used, for example a material with a low elongation modulus at a pre-determined thickness, wherein an acceptable standing capability is maintained and the package can preferably also be used for larger filling volumes.
5 This object is solved according to the invention in that a) the quotient (Q) of the ratio of filling volume of the package to the surface of the package and the ratio of volume of a sphere to the surface of a sphere is between 0.8 and 0.85;
b) the dimensions of the package are selected such that aa) A:B = 0.5 to 0.99, preferably 0.7 to 0.95, and particularly preferably 0.85 to 0.9;
bb) ((A+B)/2):C = 0.9 to 1.7, preferably 0.95 to 1.4, and particularly preferably 1.05 to 1.25;
cc) ((A+B) C): E = 50 to 120 length units, preferably 55 to 82 length units, and particularly preferably 60 to 65 length units;
dd) F:[~] + C] = 1 to 0, preferably 0.5 to 0, and particularly preferably 0.25 to 0;
ee) G: A = 0 to 1.3. preferably 1.2 to 0.8, and particularly preferably 1.1 to 0.9;
wherein A = front base edge of the package B = rear base edge C = side base edge E = front vertical projection F = front longitudinal edge G = rear upper edge and (A+B) . C is the surface of the possibly trapeze shaped base (1) 2197~25 c) the elongation modulus is in the range of 200N to 1500N preferably mm mm 200N to 750N and particularly preferably in the range of mm2 mm 200N to 375N
mm2 mm2 d) the ratio of the thickness of the package material cubed to the filling volume of the package is in the range of 0.000027 mm3 to dm3 0.004 mm3 dm3 e) the tip-over angle (a, ~, y) at which, when exceeded, the package tips over by itself is greater than 10~ in the longitudinal direction and is greater than 8~ in the lateral direction.
In comparison with the known packages for flowable media, the novel package according to the invention requires significantly less material, which moreover is qualitatively more simple, wherein the standing capability of the package is nevertheless comparably as good as with the known package.
25 The features for the solution according to the invention described hereinabove teach the provision of a different design compared to the known coloured bag-type packages. In other words a bag of the known type could not be manufactured at the cost and with the quality of the material used according to the invention, or it would not be capable of standing. If the features for a 30 solution according to the invention are used, a package is obtained which alters from its manufactured shape when filled but in the end guarantees the properties required from such a package, in particular good standing capability and ease of handling. The internal pressure of the contents allows the known package to assume an approximately cylindrical shape, wherein the package 35 material can absorb the tensile stresses.
Feature a) refers to two ratios. The first ratio is the filling volume of the package to the surface of the package; while the second ratio is the volume of a sphere to the surface of a sphere. The skilled person knows that on the one hand the optimising of the surface of a package, which is manufactured 5 in particular from a flexible material and changes its shape when filled is sought and on the other hand wishes to obtain an approximation to the ratios in the case of a sphere. The teaching according to the invention states that to determine the quotients concerned from the two ratios for the package on the one hand and a sphere on the other hand naturally requires the same 10 filling volume.
It has also been shown that the same advantageous properties can be incorporated into the package according to the invention particularly advantageously for filling volumes of, for example, three litres or more.
While the advantageous feature a) according to the construction described above should be observed, at the same time it is advantageous when the package dimensions according to feature b) are provided. For this, a theoretical package shape should be assumed in which the package has a 20 quadratic, preferably trapeze shaped base, from the side base edges of which two side walls project such that they meet in the front area at an upper line, that above the front base edge a front wall extends to the same upper line of the two side walls, wherein this same line can also be envisaged as the front longitudinal edge. Correspondingly, a rear wall extends above the rear base 25 edge, which ends at a rear upper edge perpendicular to the longitudinal edge.Between this and the front longitudinal edge an approximately triangular upper wall can also be provided. If the package is viewed from the front in a direction parallel to the plane on which the base stands, then a front vertical projection can be seen, that is to say an elevation from the front base edge 30 upwards to the front longitudinal edge. At the same time from the opposite direction of view from the rear onto the rear wall a rear vertical projection can '~197325 be seen which extends from the rear base edge upwards to the rear upper edge. In this theoretical model it has been assumed that both the base and the walls are planar. In this case the front wall is preferably triangular, the rear wall can be trapeze shaped or preferably triangular. The iong sides are called "side base edges" here, while the short sides are the so-called front and rear base edges.
Using the definitions described above the skilled person can select the dimensions of the package in the manner desired.
The ratio A:B described within feature b) is always positive according to the invention, with the condition that both A and B are larger than 0 and A is smaller than B. It is recognised that the trapeze shape of the base resulting from this A:B ratio is considered the preferred configuration. The standing capability is positively influenced by this dimensioning. In particular, when filled the package leans somewhat to the rear, and the pouring side of the package is almost perpendicular, that is to say the height of the triangular front wall is approximately vertical. For better comprehension, it should be assumed that the planar base lies on a horizontal plane and the triangular front wall projects approximately perpendicularly, while the side walls are correspondingly inclined along the legs of the triangle of the front wall and meet in the centre above the base vertically at the top along the longitudinal edge.
With an optimal selection according to the invention of the package dimensions an optimum use of material is achieved. This means a good ratio of the package surface to the filling volume already discussed above.
When in feature b) the ratio of F: (A+B +C) equals 1, this means that no rear upper edge G is sealed off, that is to say the side walls meet at the top - 219~25 along a front longitudinal edge F which is approximately A+B longer than the side base edge C. When, however, at the other extreme this ratio is 0, this means that from the front point, that is to say above the front wall at the tip 5 of the top point of the triangle, sealing off as far as the rear upper edge takes place.
When, correspondingly the next ratio described under feature b), that is to say G:A, is particularly preferably at 0, this means that no tab is sealed off. It has 10 been shown that in this case the range in which the ratio of G:A is between 1.1 and 0.9 also produces advantageous package geometry. In other words, the result of this and the meaning of it is that triangular tabs are sealed off.
When the skilled person considers the features according to b) of the solution, 15 there results a standable bag-type package with relatively large tip-over angles. This also means that the package does not empty out by itself after opening of the pouring means.
The feature c) with the elongation modulus ranges means that qualitatively 20 more simple material can be used, which, for example has a lower elongation modulus at a pre-determined thickness than the known bags made from a single or multi-layer thicker plastics. These ranges of elongation moduli relateto values which can be determined according to DIN 53457. Within the framework of the range described above for the ratio of the thickness of the 25 package material cubed to the filling volume of the package, with some embodiments it has proved preferable when this ratio is in the range of 0.0007 mm3 to 0.001 mm3 dm3 dm3 30 With somewhat thicker package materials the behaviour of the package has been shown to be particularly robust.
2197~25 The tip-over angle according to feature e) according to the invention is the angle at which, when exceeded, the package tips over by itself. A larger tip-over angle thus means a good standing capability, which is obtainable according to the invention in spite of the thin plastics foil described above.
5 The tip-over angle is tested when the package is filled. A differentiation is made here between a first tip-over angle a which indicates the tipping over forwards of the filled package over the so-called front wall; the tip-over angleB which indicates the sideways tipping of the package over the respective side base edge (to either one side or the other; the package is preferably 10 constructed symmetrically with respect to the longitudinal centre line of thebase); and the third tip-over angle y indicates the possibility for tipping overof the package backwards over the rear base edge (opposite with respect to the tip-over angle a).
15 The standing capability of the package according to the invention can also bedefined in that the standing moment is greater than the tipping-over moment.
When the package stands "upright" in the manner defined here, this means that at least a part of the height of the package is greater than the lengths ofthe edges of the base area of the package. The testing procedure for 20 establishing the respective tip-over angle employs a horizontally arranged planar table upon which the base of the filled package is placed. The table is then, for example, tilted at increasing angles and the package remains standing on the table in the inclined position. The angle is increased until thepackage tips over the corresponding base edge. Advantageously, a tilting 25 table with an angle scale can be used as an appropriate testing device.
Actually, the tip-over angle is measured in three directions perpendicular to one another, but because the sideways directions are the same because of the symmetrical construction of the package (tip-over angle ~) according to the invention only the three tip-over angles a, ,~ and y are given.
Despite a soft, flexible package material with the properties described - 2~97325 according to the invention a standable package for flowable media with a very low centre of gravity can be obtained, and it has been established that the height of fall of the package according to the invention is high compared to known packages. By means of the measures according to the invention a 5 single material with correspondingly good recycling properties can also be used. A folding of the base is known from the general manufacturing of packages for liquids from plastics coated paper wherein in a tube a cross-sealing seam is provided in the base area, the ends of which each form the points of triangular tabs opposite one another with respect to the base. These 10 triangular tabs are folded down in the known packages for liquids and fixed to the base in order to provide a planar, quadratic standing base for the package for liquids.
In the case of similar manufacturing processes for the standable package 15 according to the invention, triangular tabs can be provided adjacent to the front and/or rear base edges, which can be folded down and sealed off in a manner similar to the known packages for liquids.
According to the invention, the packages can also be configured, however, 20 such that the front and/or the rear base edge is provided with a sealing seam.
This sealing seam can then be used as a dividing line, the provision of which separates the triangular tab from the base and allows re-working. By means of the sealing off of a triangular tab after or even before the filling of the package, the standing capability of the novel package is improved. With this 25 it is particularly preferred when the pouring means or the tab on the side ofthe package to be opened is smaller than the other tab arranged on the opposite side. In this way the rearward tilting of the package is obtained and tipping over prevented. At the same time, by means of the differently sized triangular tabs the trapeze shape of the base can be produced, by means of 30 which the standing capability and stability can be positively influenced in the sense described above.
Furthermore, it is advantageous according to the invention when two side walls and also a front wall and a rear wall are joined by means of the side base edges to the base, and when in the base a cross-sealing seam is applied running from the front to the rear base edge and an upper cross-5 sealing seam on the upper ends of the side walls. In a manner similar to thetheoretical package shape described above, it is preferred to attach the two side walls and the front and rear wall to the base and to provide cross-sealing seams both at the bottom in area of the base and above at a distance in the area of the upper ends of the side walls. With this the sealing off according 10 to the upper cross-sealing seam is either from the front at the top point of the triangular front surface rearwards to the rear upper edge or from the rear upper edge frontwards to where the front longitudinal edge begins. The theoretical considerations can be understood particularly well when straight cross-sealing seams are assumed. In the case of the planar base it is clear 15 that the lower cross-sealing seam is naturally straight. However, the upper cross-sealing seam can be imagined with more or less lengthy front longitudinal edges, wherein the angle at which it is placed against the cross-sealing seam on the base side can be more or less acute, preferably between 0 and 30~, particularly preferably 5~ to 25~. In this case 0~ means that the 20 upper cross-sealing seam runs parallel to the lower cross-sealing seam.
When differently sized corners are sealed off in the base area, that is to say the triangular tabs described are kept differently sized in the sense defined hereinabove, when the pouring means is opened, the package does not 25 empty out when the lower cross-sealing seam lies parallel to the upper one.
The angled placement of the upper cross-sealing seam with respect to the lower one, that is to say the inclination of the upper cross-sealing seam with respect to the lower one has the advantage that the volume of air in the package above the contents is reduced and thereby less contents comes into 30 direct contact with the air. With the upper cross-sealing seam inclined with respect to the base, the package can be filled to a higher level with good 21~7325 pouring properties. In addition, the centre of gravity of the contents is advantageously shifted forwards towards the front base edge, and pouring out is facilitated.
5 It is furthermore advantageous when the upper cross-sealing seam is composed of at least two straight and/or curved part sections. With this preferred embodiment the upper cross-sealing seam does not run in a straight line over the whole upper area of the package but divides into different sections. This measure allows the volume of the head of air in the package 10 to be reduced, the centre of gravity to be shifted in the desired manner and also pouring to be improved.
It is also advantageous according to the invention when at least partially over the upper cross-sealing seam there is attached an upper tab formed from 15 doubled over sections of material, forming a handle. When the upper cross-sealing seam is placed at an angle to the lower one, during manufacturing of a package from a tube in accordance with the invention there remains a section of doubled-over material which can be used as a handle and possibly reinforced with another end sealing seam. The package according to the 20 invention would then have three cross-sealing seams counting from the base to the top, namely the one in the base, the cross-sealing seam delimiting the side walls at the top and the latterly described so-called end sealing seam, which delimits the upper doubled-over section of material and will be described again later. According to the path of the upper end sealing seam 25 this can be joined to the so-called upper cross-sealing seam which delimits the side walls at the top, or can run into it. The user can be provided with a good handle by means of the section of material formed in this way, even when the sections of material above the upper cross-sealing seam are gripped between the fingers of one hand only.
The end sealing seam which is arranged above the upper cross-sealing seam 21~7325 can be arranged everywhere or at certain places at a distance above the upper cross-sealing seam. In this way the section of material formed between the upper cross-sealing seam and the end sealing seam is considerably strengthened and reinforced. In this way it can be used better as a handle or 5 for providing additional measures for forming better handles.
For example, according to the invention it can be advantageous when an elongate load distributing means is set into in the doubled over upper tab under the straight end sealing seam. A rod, a pipe or an elongate plate can 10 be envisaged as such a load distributing means, which is placed under the uppermost cross-sealing seam, that is to say the end sealing seam, and is supported thereby.
In addition, to further improve a handle it can be particularly advantageous 15 when according to the invention holes or cut-outs are provided at a distance from one another - similar to the arrangement of the fingers of one hand - in the upper tab, forming a handle. Elongate holes in sections of plastics are known per se as handles. When, however, a plurality of holes, similar to the arrangement of the fingers of one hand - are arranged in the doubled over 20 upper tab under the straight end sealing seam, this provides a better load distribution resulting in an increased resistance to stress of a handle made in this way. By means of the arrangement of the handle in the upper area of the package, it can be more easily removed from bundles, shelves or the like.
When the measures according to the invention are taken into account, it is 25 also possible to attach the handle in the rear upper area of the package, that is to say at a distance from the pouring means, in order to in this way facilitate and to improve the pouring out of the contents. In addition it is also possible to more easily attach differently configured pouring means on the front wall or at least in the front area of the package at the top.
As a further advantage, the provision of holes or cut-outs makes strengthening of the material in the doubled-over upper tab between the two upper cross-sealing seams unnecessary. By means of the arrangement of the holes similar to the fingers of one hand, the load can be distributed better on the edges of the holes. For example, it can be advantageous to configure such a hole at 5 more than 20 mm, preferably 22 mm, whereby an ergonomic arrangement and minimal loading of the material is produced.
When the ratio of the package material to the filling volume is described hereinabove, the above-mentioned figures do not include the material in the 10 area of the handle.
In connection with the package according to the invention, the handles can be configured in many ways and with the most varied advantages. The embodiment with the finger holes in the doubled-over tab ensures better 15 strength and tensile stress distribution in the material without a rod or the like as a load distribution means. The handles can also be arranged advantageously in the area of the doubled-over upper tab in accordance with the invention when above the upper cross-sealing seam which joins the two side walls at the top, a doubled-over upper tab is formed whether it is 20 strengthened by a further end sealing seam right at the top or is without such an end sealing seam. In each case with an angled upper cross-sealing seam an upper tab is formed and at the same time the head room over the contents becomes narrower towards the front with the associated advantages of improved pouring, the distribution of the centre of gravity and so forth.
The most important advantage, however, is the improvement to the standing capability and the considerably less costs for the material when the measures according to the invention are taken into account.
30 Further advantages, features and possibilities for application of the presentinvention will be shown by the following description of preferred embodiments together with the attached drawings. In these is shown in:
Figure 1 the theoretical model of a package with precise representation of various edges and walls, 5 Figure 2 an embodiment, similar to Figure 1 but more concrete, of a package for flowable media with sealing seams, Figures 3 - 5 further other embodiments of packages for flowable media, in which the upper cross-sealing seam is placed at different angles to the end sealing seam,~0 Figure 6 a schematic, perspective view of a further embodiment of the package for flowable media according to the invention, in which, however, an elongate pipe is fitted above the end sealing seam as a load distribution means, Figures 7 - 9 similar diagrams as in Figure 6, wherein the handle is reproduced by holes in the doubled-over upper tab, Figures 10 - 12 schematic views of a typical package for flowable media, in which the respective tip-over angle is shown during measurement, Figure 13 in perspective a filled package for flowable media with a handle and folded triangular tabs.
Figure 1 shows a theoretical or ideal example of a standable package for flowable media with straight edges and planar walls. The base 1 is planar and is conceived of as Iying on a horizontal planar support. It is delimited by a front base edge A, a rear base edge B and the two side base edges, the 25 front one of which is labelled C. Two side walls 2 and 2' are joined above the two side base edges C to the base 1, which touch at the top along the front longitudinal edge F above the central longitudinal centre line 3 of the base.
Further, a front wall 4 and a rear wall 5 are joined to the base above the frontbase edge A and the rear base edge B. The foot of the front vertical 30 projection E is located where the longitudinal centre line 3 of the base 1 intersects the front base edge A. The upper terminal point of this front vertical ~197325 elevation E is labelled 6 and represents the point of the equilateral triangle of the front wall 4, from where the front longitudinal edge F extends rearwards parallel to the side base edge C to the point 7. The distance between the points 6 and 7 thus represents the length of the front longitudinal edge F.
In a similar manner when viewing perpendicularly from the rear towards the rear wall 5, the rear vertical projection D can be seen, which reproduces the vertical distance apart of the two lines B running parallel to one another, namely the rear base edge and G, namely the rear upper edge. It can be 10 seen that in the embodiment of Figures 1 and 2, the rear upper edge G is greater than 0, that is to say the rear wall 5 is trapeze shaped and a triangular surface 8 extends between the rear terminal point of the front longitudinal edge F and the rear upper edge G. If the length of the rear upper edge G is 0, then the upper triangular surface 8 disappears, and the rear wall 5 is an 15 equilateral triangle.
In numerous embodiments, in particular in the case of the embodiments shown in Figures 3 to 13, the rear upper edge G is eliminated, that is to say G = 0. The ratio G:A is then also 0. This is a preferred practical embodiment, 20 which demonstrates many positive properties.
A common plane could be conceived, running through the front base edge A
and the rear upper edge G, which then, in the case of the embodiments of Figures 1 and 2 divides the package into two geometrical part bodies, namely 25 an inclined wedge with the base 1 and an inclined pyramid with the front wall4 and the triangular surface 8. The total volume of this package can also be considered as being a sum of the wedge described and of the pyramid.
In all the embodiments the pouring means, not described in more detail, is 30 labelled 9. It can be provided either with a tear-off tab (Figures 2 to 5) or a screw cap (Figures 6 to 9 and 13) or with other means such as, for example, cut-outs or markings, upon which the basic idea of the invention is not dependent.
The basic figure shown in Figure 1 is represented in a somewhat more concrete manner in Figure 2 as a package for flowable media with sealing seams. In particular, a sealing seam 10 runs along the front base edge A, and a sealing seam 11 parallel thereto in the rear base edge B. Both are crossed by a longitudinal centre sealing seam 12 which runs parallel to the longitudinal centre line 3 in the base 1. While the front wall 4 is smooth and the pouring means 9 is only provided in the upper area, a sealing seam 13 passes across the rear wall 5. Along the rear upper edge G there runs a further sealing seam 14 which lies parallel to the sealing seam 11 and is crossed by an upper cross-sealing seam 15 which begins at the rear upper edge G, passes across the upper wall 8 and the height of an equilateral triangle as far as the rear terminal point 7 and then extends at an angle along the front longitudinal edge F as far as the front corner 6.
While in the case of the embodiments according to Figures 2 to 5 the front base edge A is provided with a sealing seam 10 and the rear base edge B
with a sealing seam 11, without triangular tabs being present, the embodiment of Figure 8 shows two triangular tabs 16 which are not sealed off although the two sealing seams 10 and 11 are provided. Along the latter the triangular tabs 16 are simply folded down and affixed to the base 1 such that the package in Figure 8 is again capable of standing.
When the upper cross-sealing seam 15 runs straight or with a bend from the front corner 6 of the front wall 4 upwards to the rear corner 17, which should be thought of as being approximately pointed as the rear upper edge G has become 0, the embodiments are produced as are shown in Figures 3 to 9 and 13. In Figures 3 and 5 the upper cross-sealing seam 15 runs firstly along the front longitudinal edge F to the rear terminal point 7 thereof and then bends at na angle not equal to 0 to the central longitudinal sealing seam 12 in the base 1. The cross-sealing seam as a whole labelled 15 is composed in this case from a straight part section 15a which provides the front longitudinal edge F and the rear angles part section 1 5b which ends at the rear terminal 5 point 17. As previously, the upper cross-sealing seam 15 extends, however, as in the case of the other embodiments, from the front upper terminal point 6 to the rear terminal point 17, whereby the filling volume of the package is limited. In the embodiment according to Figures 4 and 6 an upper tab 18 formed from a doubled-over section of material is fixed above the whole upper 10 cross-sealing seam 15, which can be used as a handle 19. With the other embodiments according to Figures 3, 5 and 6 a doubled-over tab 18 is formed above the part section 15b of the upper cross-sealing seam 15. If the sections of material of the side walls 2 and 2' are left uncut and extend above the part section 15b of the upper cross-sealing seam 15, the upper tab 18 15 made from the doubled-over material sections 18 is formed.
This upper tab 18 can now be strengthened in that a further sealing seam, namely the end sealing seam 20 is applied at a distance above the upper cross-sealing seam 15. When in addition the rear edge of the doubled-over 20 upper tab 18 is sealed off, that means provided with the strengthening seam 21, a further stiffening is provided. In other words in the embodiments according to Figures 3 and 5 the doubled-over upper tab 18 bordered by three sealing seams in a triangle, namely the part section 15b of the upper cross-sealing seam 15 and the latterly described sealing seams 20 and 21, which 25 in this case are perpendicular to one another. In the embodiment of Figùre 4 also, the upper tab 18 is triangular with the upper cross-sealing seam 15 as the hypotenuse and the sealing seams 20 and 21 with are perpendicular to one another. This triangular tab can in each case be used as a handle for supporting pouring.
The ratios in Figures 6 to 9 with respect to the triangular tab 18 are the same.
- 219732~
However, in the embodiment of Figure 6, in the doubled-over upper tab 18 an elongate tube 22 is set in above the straight end sealing seam 20 in a supporting section 23 made from doubled-over plastics material, and retained by means of a further retaining sealing seam 24 arranged above the upper 5 end sealing seam 20. It is understood that the gripping of a tube 22 provides an improvement and additionally facilitates pouring.
In the embodiment according to Figures 7 to 9 and 13, holes 25 are arranged at a distance apart in the upper tab 18 forming the handle labelled as a whole 10 19, which could, however, also be replaced by a U-shaped cut-out. According to Figure 4 this relates to four holes 25, which are provided in configuration and arrangement in a manner similar to that of the fingers of one hand in the tab 18.
15 In the embodiment of Figure 8, the four holes 25 are replaced by an elongate hole 25a, and in the embodiment in Figure 9 in the case of a handle 19 by two elongate holes 25a arranged at a slight angle in an easily grippable manner.
20 Two elongate holes 25a are also shown in Figure 13 in the doubled-over, more strip-like tab 18. This is delimited at the top by the end sealing seam 20 and at the bottom by the upper cross-sealing seam 15. The latter is divided into a curved front section 15a and two slightly curved rear part sections 15b.
25 In this embodiment of Figure 13, in the lower area the triangular tabs are shown without sealing seams, folded downwards and affixed to the base 1.
When Figure 11 is considered, the longitudinal direction 26 of the package is viewed, which is reproduced by the arrow pointing to the left towards the front 30 wall 4 in Figure 10. A tilting table 28 is placed on a horizontal support 27 and tilted in the manner shown with respect to the horizontal support 27.
219732~
In the case of Figure 10, the filled package is tipped about the front base edge A in the direction of the curved arrow 29 such that the base 1 together with the tilting table 28 assumes the angle a with respect to the support 27.
If the package remains standing without tipping over, the angle a is increased 5 until the angular limit is reached, the so-called tip-over angle a.
In the opposite direction, according to Figure 12, the titling table 28 is tilted rearwards about the rear base edge B in the direction of the curved arrow 30 such that the base 1 and thereby the tilting table 8 assumes the angle y with 10 respect to the horizontal support 27. In this case also, the process is carried out in the manner described above and it is determined whether the package stands or tips over at the selected angle ~.
The sideways tipping over is determined according to Figure 11, which is the 15 same in one direction as in the opposite direction, as the package is constructed symmetrically with respect to the longitudinal centre line 3. In this case also, the tilting table 28 is tilted by an angle which, die to the sidewaystipping over according to the curved arrow 31 is the sideways tip-over angle ~-- 18A ~
List of designations base 2,2' side walls 3 longitudinal centre line 4 front wall rear wall 6 upper terminal point of the front vertical projection E
7 rear terminal point 8 upper wall, triangular surface 9 pouring means sealing seam 11 sealing seam 12 longitudinal central sealing seam 13 sealing seam 14 sealing seam upper cross-sealing seam 15a part section 15b part section 16 triangular tabs 17 rear corner 18 tab, material section 19 handle end sealing seam 21 strengthening seam 22 pipe 23 supporting section 24 retaining sealing seam holes 25a elongate hole 26 longitudinal direction 219~32~
27 support 28 tilting table 29 arrow arrow 31 arrow A front base edge of the package B rear base edge C side base edge E front vertical projection 10 F front longitudinal edge G rear upper edge
Known packages for flowable media of this type are presently sold commercially as coloured bags and refill packs for cleaning agents. The material of the package is a sealable plastics in several layers in order to produce a sealed and rigid package such that it is also capable of standing 15 when filled. The side walls are pressed flat at the top and joined to a longitudinal sealing seam extending as far as the base, while the base is sealed in additionally and thereby the lower edges of the side walls are spread out such that the known package, which is wider at the bottom and narrower at the top, can stand on the lower edges of the side walls. Either a closure or 20 a cut-out or a marking is provided in the upper area as the pouring means, sothat the end-user either opens the closure or tears off or cuts off a tab in order to pour out the liquid.
The known standing bag achieves its standing capability at a high cost in 25 terms of multi-layered plastics foil material, which causes re-cycling problems because the separation of the individual layers by material is difficult. The insertion of an additional material strip for the base lining increases the costof the materials and the manufacturing process of the known package.
30 The object of the present invention is therefore to improve a package for flowable media of the type described in the introduction such that for a pre-determined amount of contents less, and qualitatively more simple, material - 219732~
can be used, for example a material with a low elongation modulus at a pre-determined thickness, wherein an acceptable standing capability is maintained and the package can preferably also be used for larger filling volumes.
5 This object is solved according to the invention in that a) the quotient (Q) of the ratio of filling volume of the package to the surface of the package and the ratio of volume of a sphere to the surface of a sphere is between 0.8 and 0.85;
b) the dimensions of the package are selected such that aa) A:B = 0.5 to 0.99, preferably 0.7 to 0.95, and particularly preferably 0.85 to 0.9;
bb) ((A+B)/2):C = 0.9 to 1.7, preferably 0.95 to 1.4, and particularly preferably 1.05 to 1.25;
cc) ((A+B) C): E = 50 to 120 length units, preferably 55 to 82 length units, and particularly preferably 60 to 65 length units;
dd) F:[~] + C] = 1 to 0, preferably 0.5 to 0, and particularly preferably 0.25 to 0;
ee) G: A = 0 to 1.3. preferably 1.2 to 0.8, and particularly preferably 1.1 to 0.9;
wherein A = front base edge of the package B = rear base edge C = side base edge E = front vertical projection F = front longitudinal edge G = rear upper edge and (A+B) . C is the surface of the possibly trapeze shaped base (1) 2197~25 c) the elongation modulus is in the range of 200N to 1500N preferably mm mm 200N to 750N and particularly preferably in the range of mm2 mm 200N to 375N
mm2 mm2 d) the ratio of the thickness of the package material cubed to the filling volume of the package is in the range of 0.000027 mm3 to dm3 0.004 mm3 dm3 e) the tip-over angle (a, ~, y) at which, when exceeded, the package tips over by itself is greater than 10~ in the longitudinal direction and is greater than 8~ in the lateral direction.
In comparison with the known packages for flowable media, the novel package according to the invention requires significantly less material, which moreover is qualitatively more simple, wherein the standing capability of the package is nevertheless comparably as good as with the known package.
25 The features for the solution according to the invention described hereinabove teach the provision of a different design compared to the known coloured bag-type packages. In other words a bag of the known type could not be manufactured at the cost and with the quality of the material used according to the invention, or it would not be capable of standing. If the features for a 30 solution according to the invention are used, a package is obtained which alters from its manufactured shape when filled but in the end guarantees the properties required from such a package, in particular good standing capability and ease of handling. The internal pressure of the contents allows the known package to assume an approximately cylindrical shape, wherein the package 35 material can absorb the tensile stresses.
Feature a) refers to two ratios. The first ratio is the filling volume of the package to the surface of the package; while the second ratio is the volume of a sphere to the surface of a sphere. The skilled person knows that on the one hand the optimising of the surface of a package, which is manufactured 5 in particular from a flexible material and changes its shape when filled is sought and on the other hand wishes to obtain an approximation to the ratios in the case of a sphere. The teaching according to the invention states that to determine the quotients concerned from the two ratios for the package on the one hand and a sphere on the other hand naturally requires the same 10 filling volume.
It has also been shown that the same advantageous properties can be incorporated into the package according to the invention particularly advantageously for filling volumes of, for example, three litres or more.
While the advantageous feature a) according to the construction described above should be observed, at the same time it is advantageous when the package dimensions according to feature b) are provided. For this, a theoretical package shape should be assumed in which the package has a 20 quadratic, preferably trapeze shaped base, from the side base edges of which two side walls project such that they meet in the front area at an upper line, that above the front base edge a front wall extends to the same upper line of the two side walls, wherein this same line can also be envisaged as the front longitudinal edge. Correspondingly, a rear wall extends above the rear base 25 edge, which ends at a rear upper edge perpendicular to the longitudinal edge.Between this and the front longitudinal edge an approximately triangular upper wall can also be provided. If the package is viewed from the front in a direction parallel to the plane on which the base stands, then a front vertical projection can be seen, that is to say an elevation from the front base edge 30 upwards to the front longitudinal edge. At the same time from the opposite direction of view from the rear onto the rear wall a rear vertical projection can '~197325 be seen which extends from the rear base edge upwards to the rear upper edge. In this theoretical model it has been assumed that both the base and the walls are planar. In this case the front wall is preferably triangular, the rear wall can be trapeze shaped or preferably triangular. The iong sides are called "side base edges" here, while the short sides are the so-called front and rear base edges.
Using the definitions described above the skilled person can select the dimensions of the package in the manner desired.
The ratio A:B described within feature b) is always positive according to the invention, with the condition that both A and B are larger than 0 and A is smaller than B. It is recognised that the trapeze shape of the base resulting from this A:B ratio is considered the preferred configuration. The standing capability is positively influenced by this dimensioning. In particular, when filled the package leans somewhat to the rear, and the pouring side of the package is almost perpendicular, that is to say the height of the triangular front wall is approximately vertical. For better comprehension, it should be assumed that the planar base lies on a horizontal plane and the triangular front wall projects approximately perpendicularly, while the side walls are correspondingly inclined along the legs of the triangle of the front wall and meet in the centre above the base vertically at the top along the longitudinal edge.
With an optimal selection according to the invention of the package dimensions an optimum use of material is achieved. This means a good ratio of the package surface to the filling volume already discussed above.
When in feature b) the ratio of F: (A+B +C) equals 1, this means that no rear upper edge G is sealed off, that is to say the side walls meet at the top - 219~25 along a front longitudinal edge F which is approximately A+B longer than the side base edge C. When, however, at the other extreme this ratio is 0, this means that from the front point, that is to say above the front wall at the tip 5 of the top point of the triangle, sealing off as far as the rear upper edge takes place.
When, correspondingly the next ratio described under feature b), that is to say G:A, is particularly preferably at 0, this means that no tab is sealed off. It has 10 been shown that in this case the range in which the ratio of G:A is between 1.1 and 0.9 also produces advantageous package geometry. In other words, the result of this and the meaning of it is that triangular tabs are sealed off.
When the skilled person considers the features according to b) of the solution, 15 there results a standable bag-type package with relatively large tip-over angles. This also means that the package does not empty out by itself after opening of the pouring means.
The feature c) with the elongation modulus ranges means that qualitatively 20 more simple material can be used, which, for example has a lower elongation modulus at a pre-determined thickness than the known bags made from a single or multi-layer thicker plastics. These ranges of elongation moduli relateto values which can be determined according to DIN 53457. Within the framework of the range described above for the ratio of the thickness of the 25 package material cubed to the filling volume of the package, with some embodiments it has proved preferable when this ratio is in the range of 0.0007 mm3 to 0.001 mm3 dm3 dm3 30 With somewhat thicker package materials the behaviour of the package has been shown to be particularly robust.
2197~25 The tip-over angle according to feature e) according to the invention is the angle at which, when exceeded, the package tips over by itself. A larger tip-over angle thus means a good standing capability, which is obtainable according to the invention in spite of the thin plastics foil described above.
5 The tip-over angle is tested when the package is filled. A differentiation is made here between a first tip-over angle a which indicates the tipping over forwards of the filled package over the so-called front wall; the tip-over angleB which indicates the sideways tipping of the package over the respective side base edge (to either one side or the other; the package is preferably 10 constructed symmetrically with respect to the longitudinal centre line of thebase); and the third tip-over angle y indicates the possibility for tipping overof the package backwards over the rear base edge (opposite with respect to the tip-over angle a).
15 The standing capability of the package according to the invention can also bedefined in that the standing moment is greater than the tipping-over moment.
When the package stands "upright" in the manner defined here, this means that at least a part of the height of the package is greater than the lengths ofthe edges of the base area of the package. The testing procedure for 20 establishing the respective tip-over angle employs a horizontally arranged planar table upon which the base of the filled package is placed. The table is then, for example, tilted at increasing angles and the package remains standing on the table in the inclined position. The angle is increased until thepackage tips over the corresponding base edge. Advantageously, a tilting 25 table with an angle scale can be used as an appropriate testing device.
Actually, the tip-over angle is measured in three directions perpendicular to one another, but because the sideways directions are the same because of the symmetrical construction of the package (tip-over angle ~) according to the invention only the three tip-over angles a, ,~ and y are given.
Despite a soft, flexible package material with the properties described - 2~97325 according to the invention a standable package for flowable media with a very low centre of gravity can be obtained, and it has been established that the height of fall of the package according to the invention is high compared to known packages. By means of the measures according to the invention a 5 single material with correspondingly good recycling properties can also be used. A folding of the base is known from the general manufacturing of packages for liquids from plastics coated paper wherein in a tube a cross-sealing seam is provided in the base area, the ends of which each form the points of triangular tabs opposite one another with respect to the base. These 10 triangular tabs are folded down in the known packages for liquids and fixed to the base in order to provide a planar, quadratic standing base for the package for liquids.
In the case of similar manufacturing processes for the standable package 15 according to the invention, triangular tabs can be provided adjacent to the front and/or rear base edges, which can be folded down and sealed off in a manner similar to the known packages for liquids.
According to the invention, the packages can also be configured, however, 20 such that the front and/or the rear base edge is provided with a sealing seam.
This sealing seam can then be used as a dividing line, the provision of which separates the triangular tab from the base and allows re-working. By means of the sealing off of a triangular tab after or even before the filling of the package, the standing capability of the novel package is improved. With this 25 it is particularly preferred when the pouring means or the tab on the side ofthe package to be opened is smaller than the other tab arranged on the opposite side. In this way the rearward tilting of the package is obtained and tipping over prevented. At the same time, by means of the differently sized triangular tabs the trapeze shape of the base can be produced, by means of 30 which the standing capability and stability can be positively influenced in the sense described above.
Furthermore, it is advantageous according to the invention when two side walls and also a front wall and a rear wall are joined by means of the side base edges to the base, and when in the base a cross-sealing seam is applied running from the front to the rear base edge and an upper cross-5 sealing seam on the upper ends of the side walls. In a manner similar to thetheoretical package shape described above, it is preferred to attach the two side walls and the front and rear wall to the base and to provide cross-sealing seams both at the bottom in area of the base and above at a distance in the area of the upper ends of the side walls. With this the sealing off according 10 to the upper cross-sealing seam is either from the front at the top point of the triangular front surface rearwards to the rear upper edge or from the rear upper edge frontwards to where the front longitudinal edge begins. The theoretical considerations can be understood particularly well when straight cross-sealing seams are assumed. In the case of the planar base it is clear 15 that the lower cross-sealing seam is naturally straight. However, the upper cross-sealing seam can be imagined with more or less lengthy front longitudinal edges, wherein the angle at which it is placed against the cross-sealing seam on the base side can be more or less acute, preferably between 0 and 30~, particularly preferably 5~ to 25~. In this case 0~ means that the 20 upper cross-sealing seam runs parallel to the lower cross-sealing seam.
When differently sized corners are sealed off in the base area, that is to say the triangular tabs described are kept differently sized in the sense defined hereinabove, when the pouring means is opened, the package does not 25 empty out when the lower cross-sealing seam lies parallel to the upper one.
The angled placement of the upper cross-sealing seam with respect to the lower one, that is to say the inclination of the upper cross-sealing seam with respect to the lower one has the advantage that the volume of air in the package above the contents is reduced and thereby less contents comes into 30 direct contact with the air. With the upper cross-sealing seam inclined with respect to the base, the package can be filled to a higher level with good 21~7325 pouring properties. In addition, the centre of gravity of the contents is advantageously shifted forwards towards the front base edge, and pouring out is facilitated.
5 It is furthermore advantageous when the upper cross-sealing seam is composed of at least two straight and/or curved part sections. With this preferred embodiment the upper cross-sealing seam does not run in a straight line over the whole upper area of the package but divides into different sections. This measure allows the volume of the head of air in the package 10 to be reduced, the centre of gravity to be shifted in the desired manner and also pouring to be improved.
It is also advantageous according to the invention when at least partially over the upper cross-sealing seam there is attached an upper tab formed from 15 doubled over sections of material, forming a handle. When the upper cross-sealing seam is placed at an angle to the lower one, during manufacturing of a package from a tube in accordance with the invention there remains a section of doubled-over material which can be used as a handle and possibly reinforced with another end sealing seam. The package according to the 20 invention would then have three cross-sealing seams counting from the base to the top, namely the one in the base, the cross-sealing seam delimiting the side walls at the top and the latterly described so-called end sealing seam, which delimits the upper doubled-over section of material and will be described again later. According to the path of the upper end sealing seam 25 this can be joined to the so-called upper cross-sealing seam which delimits the side walls at the top, or can run into it. The user can be provided with a good handle by means of the section of material formed in this way, even when the sections of material above the upper cross-sealing seam are gripped between the fingers of one hand only.
The end sealing seam which is arranged above the upper cross-sealing seam 21~7325 can be arranged everywhere or at certain places at a distance above the upper cross-sealing seam. In this way the section of material formed between the upper cross-sealing seam and the end sealing seam is considerably strengthened and reinforced. In this way it can be used better as a handle or 5 for providing additional measures for forming better handles.
For example, according to the invention it can be advantageous when an elongate load distributing means is set into in the doubled over upper tab under the straight end sealing seam. A rod, a pipe or an elongate plate can 10 be envisaged as such a load distributing means, which is placed under the uppermost cross-sealing seam, that is to say the end sealing seam, and is supported thereby.
In addition, to further improve a handle it can be particularly advantageous 15 when according to the invention holes or cut-outs are provided at a distance from one another - similar to the arrangement of the fingers of one hand - in the upper tab, forming a handle. Elongate holes in sections of plastics are known per se as handles. When, however, a plurality of holes, similar to the arrangement of the fingers of one hand - are arranged in the doubled over 20 upper tab under the straight end sealing seam, this provides a better load distribution resulting in an increased resistance to stress of a handle made in this way. By means of the arrangement of the handle in the upper area of the package, it can be more easily removed from bundles, shelves or the like.
When the measures according to the invention are taken into account, it is 25 also possible to attach the handle in the rear upper area of the package, that is to say at a distance from the pouring means, in order to in this way facilitate and to improve the pouring out of the contents. In addition it is also possible to more easily attach differently configured pouring means on the front wall or at least in the front area of the package at the top.
As a further advantage, the provision of holes or cut-outs makes strengthening of the material in the doubled-over upper tab between the two upper cross-sealing seams unnecessary. By means of the arrangement of the holes similar to the fingers of one hand, the load can be distributed better on the edges of the holes. For example, it can be advantageous to configure such a hole at 5 more than 20 mm, preferably 22 mm, whereby an ergonomic arrangement and minimal loading of the material is produced.
When the ratio of the package material to the filling volume is described hereinabove, the above-mentioned figures do not include the material in the 10 area of the handle.
In connection with the package according to the invention, the handles can be configured in many ways and with the most varied advantages. The embodiment with the finger holes in the doubled-over tab ensures better 15 strength and tensile stress distribution in the material without a rod or the like as a load distribution means. The handles can also be arranged advantageously in the area of the doubled-over upper tab in accordance with the invention when above the upper cross-sealing seam which joins the two side walls at the top, a doubled-over upper tab is formed whether it is 20 strengthened by a further end sealing seam right at the top or is without such an end sealing seam. In each case with an angled upper cross-sealing seam an upper tab is formed and at the same time the head room over the contents becomes narrower towards the front with the associated advantages of improved pouring, the distribution of the centre of gravity and so forth.
The most important advantage, however, is the improvement to the standing capability and the considerably less costs for the material when the measures according to the invention are taken into account.
30 Further advantages, features and possibilities for application of the presentinvention will be shown by the following description of preferred embodiments together with the attached drawings. In these is shown in:
Figure 1 the theoretical model of a package with precise representation of various edges and walls, 5 Figure 2 an embodiment, similar to Figure 1 but more concrete, of a package for flowable media with sealing seams, Figures 3 - 5 further other embodiments of packages for flowable media, in which the upper cross-sealing seam is placed at different angles to the end sealing seam,~0 Figure 6 a schematic, perspective view of a further embodiment of the package for flowable media according to the invention, in which, however, an elongate pipe is fitted above the end sealing seam as a load distribution means, Figures 7 - 9 similar diagrams as in Figure 6, wherein the handle is reproduced by holes in the doubled-over upper tab, Figures 10 - 12 schematic views of a typical package for flowable media, in which the respective tip-over angle is shown during measurement, Figure 13 in perspective a filled package for flowable media with a handle and folded triangular tabs.
Figure 1 shows a theoretical or ideal example of a standable package for flowable media with straight edges and planar walls. The base 1 is planar and is conceived of as Iying on a horizontal planar support. It is delimited by a front base edge A, a rear base edge B and the two side base edges, the 25 front one of which is labelled C. Two side walls 2 and 2' are joined above the two side base edges C to the base 1, which touch at the top along the front longitudinal edge F above the central longitudinal centre line 3 of the base.
Further, a front wall 4 and a rear wall 5 are joined to the base above the frontbase edge A and the rear base edge B. The foot of the front vertical 30 projection E is located where the longitudinal centre line 3 of the base 1 intersects the front base edge A. The upper terminal point of this front vertical ~197325 elevation E is labelled 6 and represents the point of the equilateral triangle of the front wall 4, from where the front longitudinal edge F extends rearwards parallel to the side base edge C to the point 7. The distance between the points 6 and 7 thus represents the length of the front longitudinal edge F.
In a similar manner when viewing perpendicularly from the rear towards the rear wall 5, the rear vertical projection D can be seen, which reproduces the vertical distance apart of the two lines B running parallel to one another, namely the rear base edge and G, namely the rear upper edge. It can be 10 seen that in the embodiment of Figures 1 and 2, the rear upper edge G is greater than 0, that is to say the rear wall 5 is trapeze shaped and a triangular surface 8 extends between the rear terminal point of the front longitudinal edge F and the rear upper edge G. If the length of the rear upper edge G is 0, then the upper triangular surface 8 disappears, and the rear wall 5 is an 15 equilateral triangle.
In numerous embodiments, in particular in the case of the embodiments shown in Figures 3 to 13, the rear upper edge G is eliminated, that is to say G = 0. The ratio G:A is then also 0. This is a preferred practical embodiment, 20 which demonstrates many positive properties.
A common plane could be conceived, running through the front base edge A
and the rear upper edge G, which then, in the case of the embodiments of Figures 1 and 2 divides the package into two geometrical part bodies, namely 25 an inclined wedge with the base 1 and an inclined pyramid with the front wall4 and the triangular surface 8. The total volume of this package can also be considered as being a sum of the wedge described and of the pyramid.
In all the embodiments the pouring means, not described in more detail, is 30 labelled 9. It can be provided either with a tear-off tab (Figures 2 to 5) or a screw cap (Figures 6 to 9 and 13) or with other means such as, for example, cut-outs or markings, upon which the basic idea of the invention is not dependent.
The basic figure shown in Figure 1 is represented in a somewhat more concrete manner in Figure 2 as a package for flowable media with sealing seams. In particular, a sealing seam 10 runs along the front base edge A, and a sealing seam 11 parallel thereto in the rear base edge B. Both are crossed by a longitudinal centre sealing seam 12 which runs parallel to the longitudinal centre line 3 in the base 1. While the front wall 4 is smooth and the pouring means 9 is only provided in the upper area, a sealing seam 13 passes across the rear wall 5. Along the rear upper edge G there runs a further sealing seam 14 which lies parallel to the sealing seam 11 and is crossed by an upper cross-sealing seam 15 which begins at the rear upper edge G, passes across the upper wall 8 and the height of an equilateral triangle as far as the rear terminal point 7 and then extends at an angle along the front longitudinal edge F as far as the front corner 6.
While in the case of the embodiments according to Figures 2 to 5 the front base edge A is provided with a sealing seam 10 and the rear base edge B
with a sealing seam 11, without triangular tabs being present, the embodiment of Figure 8 shows two triangular tabs 16 which are not sealed off although the two sealing seams 10 and 11 are provided. Along the latter the triangular tabs 16 are simply folded down and affixed to the base 1 such that the package in Figure 8 is again capable of standing.
When the upper cross-sealing seam 15 runs straight or with a bend from the front corner 6 of the front wall 4 upwards to the rear corner 17, which should be thought of as being approximately pointed as the rear upper edge G has become 0, the embodiments are produced as are shown in Figures 3 to 9 and 13. In Figures 3 and 5 the upper cross-sealing seam 15 runs firstly along the front longitudinal edge F to the rear terminal point 7 thereof and then bends at na angle not equal to 0 to the central longitudinal sealing seam 12 in the base 1. The cross-sealing seam as a whole labelled 15 is composed in this case from a straight part section 15a which provides the front longitudinal edge F and the rear angles part section 1 5b which ends at the rear terminal 5 point 17. As previously, the upper cross-sealing seam 15 extends, however, as in the case of the other embodiments, from the front upper terminal point 6 to the rear terminal point 17, whereby the filling volume of the package is limited. In the embodiment according to Figures 4 and 6 an upper tab 18 formed from a doubled-over section of material is fixed above the whole upper 10 cross-sealing seam 15, which can be used as a handle 19. With the other embodiments according to Figures 3, 5 and 6 a doubled-over tab 18 is formed above the part section 15b of the upper cross-sealing seam 15. If the sections of material of the side walls 2 and 2' are left uncut and extend above the part section 15b of the upper cross-sealing seam 15, the upper tab 18 15 made from the doubled-over material sections 18 is formed.
This upper tab 18 can now be strengthened in that a further sealing seam, namely the end sealing seam 20 is applied at a distance above the upper cross-sealing seam 15. When in addition the rear edge of the doubled-over 20 upper tab 18 is sealed off, that means provided with the strengthening seam 21, a further stiffening is provided. In other words in the embodiments according to Figures 3 and 5 the doubled-over upper tab 18 bordered by three sealing seams in a triangle, namely the part section 15b of the upper cross-sealing seam 15 and the latterly described sealing seams 20 and 21, which 25 in this case are perpendicular to one another. In the embodiment of Figùre 4 also, the upper tab 18 is triangular with the upper cross-sealing seam 15 as the hypotenuse and the sealing seams 20 and 21 with are perpendicular to one another. This triangular tab can in each case be used as a handle for supporting pouring.
The ratios in Figures 6 to 9 with respect to the triangular tab 18 are the same.
- 219732~
However, in the embodiment of Figure 6, in the doubled-over upper tab 18 an elongate tube 22 is set in above the straight end sealing seam 20 in a supporting section 23 made from doubled-over plastics material, and retained by means of a further retaining sealing seam 24 arranged above the upper 5 end sealing seam 20. It is understood that the gripping of a tube 22 provides an improvement and additionally facilitates pouring.
In the embodiment according to Figures 7 to 9 and 13, holes 25 are arranged at a distance apart in the upper tab 18 forming the handle labelled as a whole 10 19, which could, however, also be replaced by a U-shaped cut-out. According to Figure 4 this relates to four holes 25, which are provided in configuration and arrangement in a manner similar to that of the fingers of one hand in the tab 18.
15 In the embodiment of Figure 8, the four holes 25 are replaced by an elongate hole 25a, and in the embodiment in Figure 9 in the case of a handle 19 by two elongate holes 25a arranged at a slight angle in an easily grippable manner.
20 Two elongate holes 25a are also shown in Figure 13 in the doubled-over, more strip-like tab 18. This is delimited at the top by the end sealing seam 20 and at the bottom by the upper cross-sealing seam 15. The latter is divided into a curved front section 15a and two slightly curved rear part sections 15b.
25 In this embodiment of Figure 13, in the lower area the triangular tabs are shown without sealing seams, folded downwards and affixed to the base 1.
When Figure 11 is considered, the longitudinal direction 26 of the package is viewed, which is reproduced by the arrow pointing to the left towards the front 30 wall 4 in Figure 10. A tilting table 28 is placed on a horizontal support 27 and tilted in the manner shown with respect to the horizontal support 27.
219732~
In the case of Figure 10, the filled package is tipped about the front base edge A in the direction of the curved arrow 29 such that the base 1 together with the tilting table 28 assumes the angle a with respect to the support 27.
If the package remains standing without tipping over, the angle a is increased 5 until the angular limit is reached, the so-called tip-over angle a.
In the opposite direction, according to Figure 12, the titling table 28 is tilted rearwards about the rear base edge B in the direction of the curved arrow 30 such that the base 1 and thereby the tilting table 8 assumes the angle y with 10 respect to the horizontal support 27. In this case also, the process is carried out in the manner described above and it is determined whether the package stands or tips over at the selected angle ~.
The sideways tipping over is determined according to Figure 11, which is the 15 same in one direction as in the opposite direction, as the package is constructed symmetrically with respect to the longitudinal centre line 3. In this case also, the tilting table 28 is tilted by an angle which, die to the sidewaystipping over according to the curved arrow 31 is the sideways tip-over angle ~-- 18A ~
List of designations base 2,2' side walls 3 longitudinal centre line 4 front wall rear wall 6 upper terminal point of the front vertical projection E
7 rear terminal point 8 upper wall, triangular surface 9 pouring means sealing seam 11 sealing seam 12 longitudinal central sealing seam 13 sealing seam 14 sealing seam upper cross-sealing seam 15a part section 15b part section 16 triangular tabs 17 rear corner 18 tab, material section 19 handle end sealing seam 21 strengthening seam 22 pipe 23 supporting section 24 retaining sealing seam holes 25a elongate hole 26 longitudinal direction 219~32~
27 support 28 tilting table 29 arrow arrow 31 arrow A front base edge of the package B rear base edge C side base edge E front vertical projection 10 F front longitudinal edge G rear upper edge
Claims (9)
1. Standable package for flowable media made from flexible, sealable material, with a base (1), with side walls (2, 2', 4, 5), with sealing seams (10-15) joining the walls and with a pouring means (9), characterised in that a) the quotient (Q) of the ratio of the filling volumes of the package to the surface of the package and the ratio of the volumes of the sphere to the surface of the sphere is between 0.8 and 0.85;
b) the dimensions of the package are selected such that aa) A:B = 0.5 to 0.99, preferably 0.7 to 0.95 and particularly preferably 0.85 to 0.9;
bb) ((A+B)/2):C = 0.9 to 1.7, preferably 0.95 to 1.4, and particularly preferably 1.05 to 1.25;
cc) = 50 to 120 units of length, preferably 55 to 82 units of length and particularly preferably 60 to 65 units of length;
dd) = 1 to 0, preferably 0.5 to 0, and particularly preferably 0.25 to 0;
ee) G:A = 0 to 1.3, preferably 1.2 to 0.8 and particularly preferably 1.1 to 0.9;
wherein A = front base edge of the package B = rear base edge C = side base edge E = front vertical projection F = front longitudinal edge G = rear upper edge and is the area of the possibly trapeze shaped base (1) c) the tensile elasticity modulus is in the range of to preferably to and particularly preferably in the range of to d) the ratio of the thickness of the package material cubed to the filling volume of the package is in the range of to e) the tip-over angle (.alpha., .beta., .gamma.) at which, when exceeded, the package tips over by itself is greater than 10° in the longitudinal direction andis greater than 8° in the lateral direction.
b) the dimensions of the package are selected such that aa) A:B = 0.5 to 0.99, preferably 0.7 to 0.95 and particularly preferably 0.85 to 0.9;
bb) ((A+B)/2):C = 0.9 to 1.7, preferably 0.95 to 1.4, and particularly preferably 1.05 to 1.25;
cc) = 50 to 120 units of length, preferably 55 to 82 units of length and particularly preferably 60 to 65 units of length;
dd) = 1 to 0, preferably 0.5 to 0, and particularly preferably 0.25 to 0;
ee) G:A = 0 to 1.3, preferably 1.2 to 0.8 and particularly preferably 1.1 to 0.9;
wherein A = front base edge of the package B = rear base edge C = side base edge E = front vertical projection F = front longitudinal edge G = rear upper edge and is the area of the possibly trapeze shaped base (1) c) the tensile elasticity modulus is in the range of to preferably to and particularly preferably in the range of to d) the ratio of the thickness of the package material cubed to the filling volume of the package is in the range of to e) the tip-over angle (.alpha., .beta., .gamma.) at which, when exceeded, the package tips over by itself is greater than 10° in the longitudinal direction andis greater than 8° in the lateral direction.
2. Package according to claim 1, characterised in that the ratio of the thickness of the package material cubed to the filling volume of the package is in the range of to
3. Package according to claim 1 to 2, characterised in that the front and/or the rear base edge (A, B) is provided with a sealing seam (10, 11).
4. Package according to one of claims 1 to 3, characterised in that a) above the side base edges (C), two side walls (2, 2') and b) a front wall (4) and a rear wall (5) are joined to the base (1) and that - in the base (1) a cross-sealing seam (12) is applied, running from the front base edge (A) to the rear base edge (B) and an upper cross-sealing seam (15) is applied to the upper ends of the side walls (2, 2').
5. Package according to one of claims 1 to 4, characterised in that the upper cross-sealing seam (15) is composed of at least two straight and/or curved part sections (15a, 15b).
6. Package according to one of claims 1 to 5, characterised in that an upper tab (18) formed from doubled-over material sections is attached at least partially above the upper cross-sealing seam (15), forming a handle (19).
7. Package according to one of claims 1 to 6, characterised in that an end sealing seam (20) is applied at least partially at a distance above the upper cross-sealing seam (15) on the upper, outer ends of the doubled-over upper tab (18).
8. Package according to one of claims 1 to 7, characterised in that an elongate load distribution means (22) is set into the doubled-over upper tab (18) below the straight end sealing seam (20).
9. Package according to one of claims 1 to 8, characterised in that holes (25, 25a) or cut-outs at a distance apart from one another -similar to the arrangement of the fingers of one hand - are provided in the upper tab (18), forming a handle (19).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19944436725 DE4436725A1 (en) | 1994-10-14 | 1994-10-14 | Stable plastic packaging |
| DEP4436725.2 | 1994-10-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2197325A1 true CA2197325A1 (en) | 1996-04-25 |
Family
ID=6530753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2197325 Abandoned CA2197325A1 (en) | 1994-10-14 | 1995-09-15 | Self-supporting solvent package |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0784578A1 (en) |
| JP (1) | JPH10507150A (en) |
| CN (1) | CN1159791A (en) |
| AU (1) | AU3567695A (en) |
| BR (1) | BR9509333A (en) |
| CA (1) | CA2197325A1 (en) |
| DE (1) | DE4436725A1 (en) |
| MX (1) | MX9701615A (en) |
| PL (1) | PL319575A1 (en) |
| WO (1) | WO1996011859A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5843540A (en) * | 1996-11-15 | 1998-12-01 | Tetra Laval Holdings & Finance, S.A. | Multi-layer flexible container for flowable materials |
| US8992085B2 (en) * | 1999-06-24 | 2015-03-31 | Alan D. Olin | Self-supporting storage bag with resealable pour spout |
| JP2003026193A (en) * | 2001-07-18 | 2003-01-29 | Daio Paper Corp | Packaging bag with handle and precursor thereof |
| DE20312280U1 (en) | 2003-08-05 | 2003-11-13 | Hänsel, Holm, 06108 Halle | Multichamber or tetraid packing has each individual packing as 3-sided truncated pyramid, the side faces of which meet over roundings as well as over widening roundings connected to them and so form hollow body |
| DE10355429A1 (en) * | 2003-11-27 | 2005-06-23 | BSH Bosch und Siemens Hausgeräte GmbH | Dishwasher with a device for storing rinsing liquid |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7112116U (en) * | 1972-07-06 | Jentsch H | Plastic bottom bags for packaging | |
| GB502266A (en) * | 1937-10-25 | 1939-03-15 | Kenneth Bertram James Blakemor | Improvements relating to cartons and like containers |
| FR1464641A (en) * | 1965-08-10 | 1967-01-06 | Packaging system | |
| SE325102B (en) * | 1966-12-21 | 1970-06-22 | G Bjoerk | |
| US3387701A (en) * | 1967-08-29 | 1968-06-11 | Wayne V Rodgers | Dispensing container |
| YU139471A (en) * | 1970-06-11 | 1984-08-31 | Jentsch Hans G | Method of manufcturing bags from multifoil plastics |
| FR2171001A1 (en) * | 1972-02-03 | 1973-09-21 | Basmadjian Ieria | Flexible plastic sachet - free standing and readily gripped while discharging liquid contents |
| FR2417445A2 (en) * | 1978-02-15 | 1979-09-14 | Vittel Eaux Min | CONTAINER IN SYNTHETIC, THIN AND FLEXIBLE MATERIAL |
| US4484351A (en) * | 1983-05-23 | 1984-11-20 | Union Carbide Corporation | Non-glass chemical container |
| DE8718085U1 (en) * | 1987-11-17 | 1993-10-28 | Hennig, Hans Jürgen, 83071 Stephanskirchen | Tightly stackable tube or bottle-like vessel with a pyramid-like shape that can be emptied essentially completely |
| FR2674825A1 (en) * | 1991-04-05 | 1992-10-09 | Prepac | Pouch which stands upright made from a flexible film and manufacturing method |
| DE9109145U1 (en) * | 1991-07-24 | 1991-09-12 | Josef W. Ostendorf GmbH & Co, 4420 Coesfeld | Flexible container filled with paint of pasty consistency |
| DE9207558U1 (en) * | 1992-06-04 | 1992-10-29 | Imer, Rodney Haydn, Dipl.-Ing., 4000 Düsseldorf | Packaging bags for liquid, pasty and granular substances |
-
1994
- 1994-10-14 DE DE19944436725 patent/DE4436725A1/en not_active Ceased
-
1995
- 1995-09-15 BR BR9509333A patent/BR9509333A/en not_active Application Discontinuation
- 1995-09-15 PL PL95319575A patent/PL319575A1/en unknown
- 1995-09-15 CN CN 95195415 patent/CN1159791A/en active Pending
- 1995-09-15 WO PCT/EP1995/003630 patent/WO1996011859A1/en not_active Application Discontinuation
- 1995-09-15 CA CA 2197325 patent/CA2197325A1/en not_active Abandoned
- 1995-09-15 EP EP95932755A patent/EP0784578A1/en not_active Withdrawn
- 1995-09-15 JP JP8512876A patent/JPH10507150A/en active Pending
- 1995-09-15 MX MX9701615A patent/MX9701615A/en unknown
- 1995-09-15 AU AU35676/95A patent/AU3567695A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE4436725A1 (en) | 1996-04-18 |
| PL319575A1 (en) | 1997-08-18 |
| EP0784578A1 (en) | 1997-07-23 |
| MX9701615A (en) | 1997-06-28 |
| BR9509333A (en) | 1998-01-27 |
| CN1159791A (en) | 1997-09-17 |
| WO1996011859A1 (en) | 1996-04-25 |
| JPH10507150A (en) | 1998-07-14 |
| AU3567695A (en) | 1996-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU731023B2 (en) | Container formed of lamination sheet | |
| DK2643235T3 (en) | REFILLING THE BAG | |
| US5025925A (en) | Flexible container for fluids | |
| JPH08508960A (en) | A bottle containing a fluid | |
| JPH04503345A (en) | upright storage bag | |
| CA2197325A1 (en) | Self-supporting solvent package | |
| JP2020517529A (en) | Flexible container | |
| US5145093A (en) | Toothpaste dispenser | |
| JP4913743B2 (en) | Pouch container with spout and method for producing the same | |
| WO2014012212A1 (en) | Flexible packaging bag | |
| MXPA97001615A (en) | Self-packable container for solven | |
| JP3108868B2 (en) | bag | |
| US6607084B1 (en) | Holder assembly for tubular containers | |
| US6488171B1 (en) | Container for viscous fluids | |
| JP3284954B2 (en) | Standing pouch | |
| JP3130627U (en) | Packaging bag holder | |
| US20020100699A1 (en) | Cookie packing container | |
| JP7455022B2 (en) | Packaging bags and filled packaging bags | |
| JP3132937U (en) | Packaging bag holder | |
| JP2000025744A (en) | Packaging container | |
| JP3600356B2 (en) | Powder container with measuring instrument | |
| JP2001322654A (en) | Refilling bag | |
| JP2020121730A (en) | Measuring pouch | |
| RU3271U1 (en) | LOW CONSUMPTION CAPACITY WITH A LIQUID OR PASTE PRODUCT | |
| JP2024093283A (en) | Spouts and Pouches |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |