CN1612829A

CN1612829A - Resealable packaging bag

Info

Publication number: CN1612829A
Application number: CN02827018.5A
Authority: CN
Inventors: R·埃尔萨塞
Original assignee: ELSAESSER VERPACKUNGE AG
Current assignee: ELSAESSER VERPACKUNGE AG
Priority date: 2002-01-11
Filing date: 2002-01-11
Publication date: 2005-05-04
Also published as: JP2005514280A; DE50206265D1; AU2002216870A1; US20050047686A1; EP1461260B1; WO2003057578A1; EP1461260A1

Abstract

The aim of the invention is to produce a resealable packaging bag in a simple, cost-effective manner. Said bag consists of a flexible material and has an opening at the top. A backing is permanently fixed to one side of the bag and a portion, of flexible material, which is provided with a self-adhesive layer, is detachably fixed onto said backing. Part of the backing and part of the portion project beyond the edge of the opening of the bag. To close the bag, one part of the backing is pulled off and the exposed part of the portion is placed across the opening and stuck onto theo pposite side. The detachably fixed part of the portion which is located on the part of the backing that remains on the bag is used to open and reseal the bag. The particular advantages of the invention are that the bag canbe produced from any material including paper and that the backing comprising the self-adhesive portion can be a commercially available self-adhesive label.

Description

The packaging bag of Reclosable

The present invention relates to a top has the packaging bag of Reclosable opening, that make with a kind of flexible material.

The packaging bag of Reclosable is known in many different embodiments.Known most packaging bag made from flat band, the packaging bag of the flat band manufacturing of described usefulness is sealed by the detachable cap that is provided with from bonding layer.If packaging bag outer made of plastic at least particularly, adhesive is attached to it not too doughtily, and it is no problem opening so repeatedly and seal again such bag.Bag with side-foldable particularly seals by folding edge of opening after opening for the first time bag again.

Task of the present invention is, proposes a kind of packaging bag of Reclosable, and this packaging bag can be made with the simplest mode and very little cost.

This task is finished by a kind of packaging bag, described packaging bag is characterised in that, a carrier can not be fixed in side at bag with unclamping, on described carrier, releasably fix one and be provided with, and the part of the part of described carrier and described section exceeds the edge of opening of bag from section adhesive linkage, that make with flexible material.

This advantage according to the solution of the present invention can be with material arbitrarily-comprise with paper and making particularly in, described bag, and the described carrier that has from bonding section can be commercially available from bonding label.

According to a specific embodiment of the present invention, described carrier has a defiber, and this defiber constitutes the line that attenuates, and perhaps with the carrier separated into two parts, and is parallel to the edge of opening extension at least approx.Like this, when sealing for the first time described bag, this makes the part that exceeds bag edge of removing carrier become easy.

According to another embodiment of the invention, described carrier and/or described section have a groove, and this groove stretches out from the edge of carrier, and its side summit (Scheitelpunkt) is positioned on the position of defiber.When sealing for the first time described bag, this scheme prevents unexpectedly partly removing from unclamping the ground bonded assembly with bag from bonding section.

According to another preferred embodiment of the present invention, the flexible material of described packaging bag has at least one layer made of paper, and this layer made of paper is in the outside of packaging bag, and perhaps this material is all made of paper.Described bag can have a side folding line according to another preferred embodiment of the present invention.

If packaging bag can be closed edge (Siegelrand) according to the described edge of opening of another embodiment of the invention sealing after the sealing for the first time so.

Schematically describe special embodiment of the present invention with reference to the accompanying drawings in detail.Accompanying drawing illustrates:

The trailing flank transparent view of the packaging bag of Fig. 1 first embodiment of the present invention,

Fig. 2 from first embodiment seen previously before sealing bag,

Fig. 3 from first embodiment seen previously at the later bag of sealing,

First embodiment that Fig. 4 sees from the side reopening later bag,

The transparent view of packaging bag from seeing previously of Fig. 5 second embodiment,

The bag according to Fig. 5 of Fig. 6 in the process of opening for the first time,

Fig. 7 and 8 is respectively the part of the bar of carrier material, and this conduct is used for the label according to packaging bag of the present invention.

Bag shown in Fig. 1 to Fig. 6 relates to so-called square bottom bag (Klotzboden-beutel).Yet the invention is not restricted to square bottom bag, but comprise the various bags of making by flexible material.For example can use the paper manufacturing in the packaging bag shown in Fig. 1 to 4, be provided with the thin plastic layer of one deck where necessary in the inboard of bag, this plastic layer guarantees certain leak tightness, and makes it possible to connect this two kinds of materials by sealing (Siegel).Described bag has trailing flank 1 and leading flank 2, and its lateral parts preferably has side folding line 3 in known manner.Lower end at bag forms bottom 4, and in the upper end opening 5 is arranged, and fills and emptying for described bag by described opening 5.

Near the edge of opening of bag and exceed edge of opening ground for example gluing or carrier 6 of sealing ground permanent fixation on trailing flank 1.Carrier 6 is separated into two parts 8 and 9 by a defiber 7, wherein the defiber 7 described bag edge that for example just aligns in an illustrated embodiment.Defiber 7 can run through the material of carrier 6 fully, and perhaps defiber 7 can constitute the line that attenuates that not exclusively runs through carrier material in known manner.On carrier 6, adhere to one be provided with one deck from adhesive linkage by the made section of a kind of flexible material.According to a particularly preferred embodiment of the present invention, described section is a kind of commercially available from bonding label, and therefore is called label 10 in the following description.Carrier 6 is provided with the layer that can take label 10 off at it on the side of label 10, promptly so-called " unclamping layer ".

Fig. 1 illustrates packaging bag, delivers ground like that as it by packing maker supply with by food processing enterprises, and described enterprise fills this bag for the first time.Fig. 2 illustrates identical bag, erects and performs the preparation of filling, has wherein reversed 180 ° with respect to the position shown in Fig. 1 in the figure, thereby can be clear that opening 5.Seal in order to prepare after filling, to carry out the first time, the part that exceeds bag edge 8 of the carrier 6 of tearing, this has become easily by defiber 7.Find under study for action, can be by mistake when this is torn from bag bonded assembly part 9 label being torn regularly of carrier, particularly when more this situation occurring along at the parts that have on the direction that stretches on the part 8 from trailing flank 1 traveling of 2 pairs of bags of leading flank of bag the time.For fear of this situation, the fact shows advantageously, if there is a groove 11 on the position of defiber 7 in carrier 6 and/or in label 10.This groove 11 can be round as shown in the figure, but it also can have the shape at a tip, and it is such to tear cutting as is well known.The part that exceeds bag edge 8 of crooked label 10 in next step, and sticking on the leading flank 2 of bag the label 10 that exposes owing to the part 8 of the carrier 6 of tearing from adhesive linkage.At this moment, as shown in Figure 3, the osed top bag just can provide to the customer like this.

In order to take out content, can open the package with simple mode, wherein the label 10 on the trailing flank 1 of bag is unclamped from the part 9 that is permanently connected with described trailing flank of carrier 6, for this purpose, described part 9 has one as described and unclamps layer.Described packaging bag after Fig. 4 illustrates the customer and opens, wherein the bag shown in Fig. 4 has reversed 180 ° with respect to the bag shown in Fig. 3.If the customer thinks to seal again described bag, he just is pressed onto the part that exceeds bag edge of label among Fig. 4 on the part 9 at the opposed bag of being positioned at of carrier edge simply again.Certainly this process is close to and can at random repeats.

According to first the above embodiments, described packaging bag can not be sealed hermetically, therefore is not suitable for the content that contains liquid component certainly.The preferred application target of this bag is the food of packing solid, for example is identified for the sandwich that eats for the birdman.

Second illustrates a kind of at the embodiments of the invention shown in Fig. 5 and Fig. 6 is the packages sealed bag after sealing for the first time.After filling for the first time, seal described bag in known manner by means of a closed edge 12 for this reason.Carrier 6 so is fixed on the trailing flank 1 of this bag, makes it not stick on the closed edge 12.Therefore the opening and can be undertaken by tearing closed edge 12 with simple mode of described bag, this can be by tearing cutting and/or making that by being arranged in the packing, the not shown line that attenuates tearing closed edge 12 becomes easy.If the customer wants that he just unclamps the part 8 of carrier 6 from label 10 the bag of opening like this sealing again, as shown in Figure 6, on the leading flank 2 that the outshot of label is placed on the opening 5 of bag and it is bonded at bag.When for the second time opening this bag, the user is from the label 10 of tearing of the part 9 on being provided with of carrier 6 trailing flank 1 " unclamping layer ", that be arranged in bag, and is as described above with reference to Figure 4.

Fig. 7 and Fig. 8 illustrate one at last respectively and have the part that is used for according to the bar of the carrier material of the label of packaging bag of the present invention.All be to make the carrier 6 that adopts the band forms of no end points according to packaging bag of the present invention in two kinds of situations, on described carrier 6, adhere to a sequence label 10.Defiber 7 and groove 11 can just have originally on this.Bar shown in Figure 7 is used to make the bag of being made by a flexible pipe, and wherein Dai edge of opening is transverse to manufacturing direction.Bar shown in Figure 8 is used to make the bag of being made by one or more bands, and wherein edge of opening is parallel to the direction of band respectively, for example is positioned on the edge of band.

Label needn't have shown in the above embodiments, the shape of rectangle substantially, but can at random constitute.Described label can also be equipped in flakes one or more, described make in flakes open the bag become easy.Described in addition label can be made with material arbitrarily, and for example can be transparent.Label can print, and for example has explanation and/or guide for use about its purposes.Certainly label can also comprise date of expiration about the packing content thing with known mode.This is suitable for too for carrier 6.The part 8 that for example will remove can have description of operation and/or in flakes.In the explanation that below label 10, to print again closing bag on the part 9 on the bag that is retained in of carrier 6, thereby as long as after opening bag, can see this explanation.

Reference numerals list

1 trailing flank

2 leading flanks

3 side folding lines

4 bottoms

5 openings

6 carriers

7 defibers

The part of 8 carriers of tearing

9 are retained in the part of the carrier on the bag

10 labels

11 grooves

12 closed edge

13 tear cutting

14 edge of opening

Claims

1. the packaging bag of osed top again of making by a kind of flexible material, this packaging bag has an opening (5) up, it is characterized in that, on a side (1) of bag, can not fix a carrier (6) with unclamping, on this carrier (6), releasably fix one and one deck is set from section (10) adhesive linkage, that make with flexible material, and the edge of opening (14) that exceeds bag of the part of the part (8) of described carrier (6) and described section (10).

2. packaging bag as claimed in claim 1, it is characterized in that described carrier (6) has a defiber (7), this defiber (7) is the line that attenuates, perhaps described carrier is separated into two parts (8,9), and this defiber is parallel to the extension of edge of opening ground at least approx.

3. packaging bag as claimed in claim 1 or 2, it is characterized in that grooves (11) in described carrier (6) and/or in described section (10), this groove (11) stretches out from the edge of carrier (6), and its side summit is on the position of defiber (7).

4. as the described packaging bag of one of above claim, it is characterized in that the flexible material of packaging bag has at least one layer made of paper, this layer made of paper is on the lateral surface of packaging bag.

5. as described packaging bag one of in the claim 1 to 3, it is characterized in that the flexible material of packaging bag is a paper.

6. as the described packaging bag of one of above claim, it is characterized in that described bag has a side folding line.

7. as the described packaging bag of one of above claim, it is characterized in that described edge of opening (14) is closed edge (12).