CN102333707A

CN102333707A - Flat-ended bag

Info

Publication number: CN102333707A
Application number: CN2010800094687A
Authority: CN
Inventors: D.博塞尔; R.梅纳德; O.姆格利; J.皮奇; T.雷维尔
Original assignee: Alcan Technology and Management Ltd
Current assignee: 3A Composites International AG
Priority date: 2009-02-26
Filing date: 2010-02-17
Publication date: 2012-01-25
Also published as: AU2010219188A1; RU2486119C2; WO2010097176A1; EP2401211A1; EP2223866A1; RU2011139117A; UA100941C2; US20120014623A1

Abstract

In a flat-ended bag (10) made of a flexible film material, two bag wall parts (20, 22) are connected via two longitudinal seams running substantially in a longitudinal direction (z) to form a bag wall that forms a tubular body (12) and has sealing edge strips (24, 26) projecting from the bag wall. The tubular body (12) is closed at both ends, at least one end of the tubular body (12) has a base part disposed substantially perpendicular to the longitudinal axis (z) and serving as a standing surface, and a resealable opening is provided on at least one end of the tubular body (12). In order to increase the rigidity of the tubular body (12), the sealing edge strips (24, 26) are folded over onto the bag wall and sealed or glued to the bag wall.

Description

Vertical bag

The present invention relates to a kind of vertical bag that constitutes by the membrane material of flexibility; Should vertical Bao Eryan, two bag wall parts connect into a bag wall along two longitudinal seams that stretch in the vertical basically, and this bag wall forms hose body; And have the sealing lip edge strip that is stretched on the bag wall; Wherein hose body at both ends sealing, at least one end of hose body have the bottom as facade that is substantially perpendicular to vertical layout, and offer the opening of Reclosable at least one end of hose body.

In order for example to leave mayonnaise or ketchup in the refrigerator in, usually use the plastic bottle that can be out of shape easily through hand pressure, so-called squeeze bottle.This bottle is placed on handstand ground usually, thereby product is because gravity is all mobile towards outlet all the time.Usually be equiped with valve at passage port, thereby only utilize the pressure that is applied on the bottle by hand just can take out fill quantitatively.This be packaged in over be mainly used in ketchup, mayonnaise and the solid-state product of other part, but because its solid make and relatively costly.

Be used for bulk products for example the vertical bag of coffee powder also be known, it is made up of flexible film material, have flat or the end of reeling as facade, and have the opening with the slide fastener form of the opposed Reclosable of facade.The major defect of this vertical bag is its less robust, causes thisly to wrap in that take out usually can't be upright again after the fill, perhaps completely loses upright ability.

By the known a kind of tubular type bag that is made up of membrane material of EP 0 966 390 B1, it has the available osed top outlet connection of renovating.Be set for the pipe that is placed on the top and have two bag wall parts, these bag wall parts along two pipe vertically on the longitudinal seam that stretches connect into a bag wall, this bag wall forms hose body, and has the sealing lip edge strip that protrudes in the bag wall.This assuring also has relatively little impregnability, and causes impregnability to reduce along with the lasting taking-up of fill.

Known by WO 2008/013275 A; Go into the flat package of processing by two thermoplastic edge around mutual leak free bag wall parts in the tubular metal mould; Packed bottom of this flat band and enclosure portion; And expand owing to being blown into hot air, abut on the inwall of metal die and produce vertical bag until the bag wall part via enclosure portion.Here, at the beginning side as the sealing lip edge strip protrude in the bag wall longitudinal seam owing to metal die institute applied pressure is translated into Bao Bishang.The sealing lip edge strip of translating on the bag wall is not sealed to or bonds to Bao Bishang under the distortion situation, also regulation is not like this.

The objective of the invention is to, the vertical bag of the said type of the beginning part is improved,, and wrap in the good upright ability of maintenance between used life even make hose body under the situation of membrane material relative thin, also have good impregnability.

According to the present invention, the sealing lip edge strip has improved the impregnability of hose body, realizes said purpose thus.

One side of the formation bag wall medial surface of flexible film material can seal, and the zone of translating into the sealing lip edge strip covering of wrapping the sealing lip edge strip on the wall and/or having been turned down can be provided with sealable coating or bond layer.But two sides of preferred flexible membrane material are all salable.

In first kind of embodiment of vertical bag, facade is made up of the closure member that is installed in hose body one end, it have flange with outlet with can be with exporting osed top closing cap again.Closing cap may be screwed on the flange, perhaps is configured to preferably be hinged on renovating on the flange.

The other end of hose body can seal with lateral slot.In order to strengthen the volume of bag, also can perhaps be set to bottom seals the curling folding end.

According to second kind of embodiment of vertical bag, facade is by constituting in an end of the hose body flat bottom folding and that sealing produces through membrane material, and perhaps the bottom by good seal constitutes.The other end of hose body can be provided with closure member, and closure member has the outlet of Reclosable.Closure member can and can constitute exporting again osed top closing cap or zip mode closure member by the flange with outlet.

In flat bottom or in leak free bottom, also can be provided with closure member, closure member have flange with outlet with can be with exporting osed top closing cap again, wherein closing cap may be screwed on the flange, perhaps is configured to preferably be hinged on renovating on the flange.

That vertical bag of the present invention is particularly suitable for packing is starchy, creamy, part is solid-state/operative liquid, liquid and loose fill nutriment particularly.

As the membrane material of flexibility, can use the packing of all known flexibilities basically.Packing should be the machine general-duties, that is to say, are suitable on packaging machine, using.Flexible membrane material can be single layer in principle, but in most cases is multilayer.Each material layer can be lacquer coating, metallic membrane, metal level or plastic film, particularly thermoplastic plastic, or the compound of metallic membrane and plastic film.One or more material layers can be extruded layers, or the thermoplastic plastic membrane, and are compound with metallic membrane or plastic film in case of necessity.At least one metal level can be lacquer coating such as varnish, colored lacquer, hot melt coating etc.At least one metal level can be a metal level, or by the vacuum-deposited thin layers of ceramic.

Lining cement, extruding lining cement can be arranged between each layer, increase and attach agent and/or priming paint.In order to improve the tack between the layer, can for example carry out corona, flame, ozone or plasma treatment to the surface of material layer.

The thermoplastic material layer can be transparent, printing opacity or opaque.For example, the material layer, film or the layer that are positioned at outer package can have pull.Under the situation that is positioned at the transparent or printing opacity of exterior material layer, film or layer, can design back side pull (Konterdruck) or be positioned at exterior pull or back side pull.

As metallic membrane, for example can use steel membrane, preferably use the aluminium film.Film thickness for example can be 5-100 μ m, is preferably 8-30 μ m.

The suitable plastics materials film preferably is made up of thermoplastic plastic such as polyester, polyolefin such as polypropylene or poly-vinyl, polyamide, polyvinylchloride, polycarbonate etc., perhaps constitutes by containing cellulosic material such as cellophane.Plastic film thickness for example can be 8-100 μ m, is preferably 12-30 μ m, particularly 12-23 μ m.

Extrudate or layer for example can be made up of polyolefin such as polypropylene or poly-vinyl.Extruding layer thickness for example can be 8-100 μ m, is preferably 12-30 μ m, particularly 12-23 μ m.

The side that is positioned at package interior of membrane material is preferably salable.Composite material to be positioned at exterior side preferably also salable.

Flexible film material for example is the compound that is made up of at least two material layers.First material layer can be film such as single film or complex film, and it is made up of thermoplastic plastic such as polyester, polyolefin such as polypropylene or poly-vinyl, polyamide, polyvinylchloride, polycarbonate etc., perhaps constitutes by containing cellulosic material such as cellophane or paper.Film can be printed on and/or back up the packing that makes outwards towards the side on, and preferably be provided with for example sealing lacquer of sealable layer.Second material layer can be a metallic membrane for example, or have be installed in the packing that makes inwardly towards the side on sealing layer or the metallic membrane of sealable film.In another embodiment, second material layer can be the sealable film that is made up of thermoplastic plastic, or the preferred sealable extruded layer that is made up of thermoplastic plastic.In case of necessity, as second material layer, also can unusable paper coated paper for example.Can use enamelled coating or lacquer coating as second material layer in case of necessity.Lacquer can be transparent, opaque, colourless or colored.According to the article that will pack, composite material can have the barrier properties that can stop liquid, gas, steam, aqueous vapor, smell or odoriferous substance etc. to be invaded.In order to obtain barrier properties; Can use the metallic membrane, the metal level that for example constitute by aluminium; The thin layers of ceramic of passing through sputter or being coated that for example constitutes through vacuum moulding machine by monox and/or aluminium oxide, the plastic film that perhaps for example constitutes by series material styrol copolymer, ethyl vinyl (Ethyl-Vinyl) ethanol poly-mer or polyvinylidene chloride.The salable material that is used for film or extrudate for example is polyolefin such as poly-vinyl, polypropylene, or ethene and acrylic acid two yuan and terpolymer.The leak tightness of membrane material also can realize through applying the sealing lacquer.

Vertical bag is usually during taking out product or floating towards facade afterwards.What also can consider is that bag is reeled from its end.For latter instance, preferably select the membrane material that has dead pleat (dead-fold) characteristic for use.

Other advantage of the present invention, characteristic and details can obtain by following description of a preferred embodiment and with reference to accompanying drawing, and accompanying drawing only is used for setting forth, and should not be construed as restriction.Accompanying drawing is schematically illustrated:

Fig. 1 is the lateral plan that has first embodiment of the vertical bag of renovating;

Fig. 2 is the lateral plan of second embodiment of vertical bag that has bottom and the zip mode closure member of good seal;

Fig. 3 is that the vertical bag of Fig. 1 and Fig. 2 is according to line I-I side cross sectional view;

Fig. 4 is the enlarged drawing of the detail section of Fig. 3.

The vertical bag 10 of the tubulose shown in Fig. 1 has and at one end transversely stitches 14 lasting osed top hose bodies 12.The other end at hose body 12 is provided with flange portion 16, and this flange portion has and can take out the hole through renovating 18 osed tops.

Hose body 12 is made up of two

bag wall parts

20,22, and these two bag wall parts connect into a bag wall along the longitudinal seam that on vertical z of hose body 12, stretches basically.Exist with the form of sealing

lip edge strip

24,26, turn over from the longitudinal seam of the outside projection of bag wall and to put on the bag wall, and with bag wall be permanently connected (Fig. 3 and 4).Renovate 18 as facade, it is substantially perpendicular to vertical z of hose body 12.

Replace lateral slot 14, hose body 12 to amass also and can be closed with the bottom 17 or the flat of winding of the good seal shown in Fig. 2 in order to increase to contain.

The vertical bag 110 of the common erected package bag form shown in Fig. 2 also has hose body 12, and this hose body is made up of two

bag wall parts

20,22, and these two bag wall parts connect into a bag wall along the longitudinal seam that on vertical z, stretches basically.Bottom 17 as facade seals at an end of hose body 12.At its other end, hose body 12 seals along discerptible lateral slot 14 securely.Below discerptible lateral slot 14, zip mode closure member 19 is wrapping wall part 20, is sealing between 22.Exist with the form of sealing

lip edge strip

24,26, also turn at this from the longitudinal seam of the outside projection of bag wall and to put on the bag wall, and with bag wall be permanently connected (Fig. 3 and 4).

Vertical bag 110 shown in Fig. 2 also can have the bottom 17 of winding.The bottom 17 of vertical bag 110 also can be equipped with band to renovate 18 bounded system.

Particularly, turn over the sealing lip edge strip of putting on bag wall or the bag wall part 22 26 and be connected enduringly with the bag wall through adhesive substance or sealing substance 28 as visible by Fig. 4.This adhesive substance or sealing substance 28 for example can adopt chromatography (Registerdruck) method to be coated on the membrane material partly at predetermined position before making bag.If membrane material is provided with sealable internal layer and skin in both sides, then need not in the zone of sealing

lip edge strip

24,26, to apply sealing substance extraly.

Claims

1. vertical bag that constitutes by the membrane material of flexibility; Should vertically wrap (10,110); Two bag wall parts (20,22) connect into a bag wall along going up two longitudinal seams that stretch at vertically (z) basically, and this bag wall forms hose body (12), and has the sealing lip edge strip (24,26) that is stretched on the bag wall; Wherein hose body (12) at both ends sealing; At least one end of hose body (12) has the bottom as facade that is substantially perpendicular to vertical (z) layout, and offers the opening of Reclosable at least one end of hose body (12)

It is characterized in that,

Sealing lip edge strip (24,26) is translated into Bao Bishang for the impregnability that improves hose body (12), and is sealed to or bonds to Bao Bishang.

2. vertical bag as claimed in claim 1 is characterized in that, two sides of flexible film material are all salable.

3. vertical bag as claimed in claim 1; It is characterized in that; One side of the formation bag wall medial surface of flexible film material can seal, and the zone of translating into sealing lip edge strip (24, the 26) covering of wrapping the sealing lip edge strip (24,26) on the wall and/or having been turned down is provided with sealable coating or bond layer (28).

4. vertical bag as claimed in claim 1 is characterized in that, facade is made up of the closure member that is installed in hose body (12) one ends, and this closure member has flange (16) with outlet and can be with exporting again osed top closing cap (18).

5. vertical bag as claimed in claim 4 is characterized in that, closing cap (18) can be screwed on the flange, perhaps is configured to preferably be hinged on renovating on the flange (16).

6. like claim 4 or 5 described vertical bags, it is characterized in that the other end of hose body (12) seals with lateral slot (14).

7. like claim 4 or 5 described vertical bags, it is characterized in that the other end of hose body (12) perhaps is provided with the curling folding end for the volume that strengthens bag seals to bottom (17).

8. vertical bag as claimed in claim 1 is characterized in that, facade is passed through the folding of membrane material and sealed the flat bottom that produces by the end at hose body (12) to constitute, and perhaps the bottom (17) by good seal constitutes.

9. vertical bag as claimed in claim 8 is characterized in that, the other end of hose body (12) is provided with closure member, and closure member has the outlet of Reclosable.

10. vertical bag as claimed in claim 9 is characterized in that, closure member is by the flange with outlet (16) and can constitute exporting again osed top closing cap (18) or zip mode closure member (19).

11. vertical bag as claimed in claim 8 is characterized in that, in flat bottom or in leak free bottom (17), is provided with closure member, this closure member has flange (16) with outlet and can be with exporting again osed top closing cap (18).

12. vertical bag as claimed in claim 11 is characterized in that, closing cap (16) can be screwed on the flange (16), perhaps is configured to preferably be hinged on renovating on the flange (16).

13. according to each vertical bag in the aforementioned claim be used to pack starchy, creamy, part is solid-state/operative liquid, liquid and the loose particularly application of nutriment of fill.