WO2013180669A1

WO2013180669A1 - Packaging bag with carrying handle

Info

Publication number: WO2013180669A1
Application number: PCT/TH2012/000021
Authority: WO
Inventors: Pornchai WONGPRASERTPHOL
Original assignee: Wongprasertphol Pornchai
Priority date: 2012-05-29
Filing date: 2012-05-29
Publication date: 2013-12-05
Also published as: CN204096306U; AU2012381135A1

Abstract

The present invention disclosed a packaging bag (15) comprising a body portion (20) and a handle portion (25) formed from sheet material. The body portion (20) and the handle portion is separated by a seal A (30). The body portion comprising a first wall (35), a second wall (40), a first side edge 45, and a second side edge 50 wherein the first wall (35) and the second wall (40) are selectively sealed at a predetermined position to define a bottom (85) and an opening (60) for receiving feeding of a product into the said packaging bag (15). The present invention is characterized in that the handle portion (25) is continuously formed from the same sheet material which formed the body portion (20) and the handle portion (25) defines an insert (65) configured to receive a handle strip (70) inserted therein. The handle portion (25) comprising a cut away section (75) prepared at the middle exposing a portion of the handle strip (70) inside the insert (65). The handle strip (70) is secured in position to the insert (65) of the handle portion (25) at a predetermine location by a seal C (80) on either side of the cut away section (75) along the length of the handle strip (70).

Description

PACKAGING BAG WITH CARRYING HANDLE

FIED OF THE INVNETION

This is invention related to a packaging bag, especially packaging bag with a carrying handle. BACKGROUND OF THE INVENTION

Packaging bag nowadays plays an important role in retail business. Many packaging bags are designed to serves various aspects of the trade, such as packaging convenience, attracting customer attention, reducing waste, extending shelf life of the product, etc. Once of the most important aspect of the trade is customer needs and satisfaction, including providing the customer with the ability to carry the purchased item away without the assistance of a shopping cart, or the need of re-bagging with a separate plastic bag such as T-shirt bag. Bags with carrying handle are developed to fulfill such needs.

However, many of such bags still have flaws and do not satisfactory fulfill such need. Known prior art includes, for example, a bag with finger holes on the handle. This type of handle, however, proof to be inadequate for carrying the item for a long distance as the handle tend to bit into the palm or fingers of the handler causing discomfort when carrying for a long distance is needed. Another common flaw for this type of bag is that the handle cannot withstand the weight of the product and stretching or tearing of the handle is a common incident.

US Patent No. 3,774,837 disclosed a carrier bag having two wide sides and a folded bottom manufactured from a tubular synthetic resin wed. At the open end of the bag is provided with a reinforcing folds or reinforcing strips extending transversely of the bag. Grip opening are punch out in the centre of the opening edge. The reinforcing folds or strips are welded to the wide sides of the bag by means of weld seams extending obliquely toward the opening edge, one on either side of the grip opening and across the entire width of the fold strips. The carry grips are thus formed by the centre part of the reinforcing folds or strips between the inclined welded seams.

International Patent Application Publication WO2008/056694 disclosed a packaging material which can be formed into package each having a carrying handle and which can be wound into a roll and then continuously unwound. The packaging bag material includes an elongated tube body made of resin film and including a front sheet and a back sheet. A sheet strip is disposed between portions of the front and back sheets extending from a first heat-bonded portion toward a second side edge with the longitudinal direction of the strip sheet conincident with the longitudinal direction of the tube body. The front and the back sheet are bonded to the strip sheet at bond portions having a predetermined length and longitudinally spaced from each other with a predetermined pitch, thereby defining unbounded portions between the adjacent bonded portions deriving a large number of bags connected to each other arranged in a row in the longitudinal direction. The portion of the sheet strip at each unbounded portion serves as a carrying handle.

International Patent Application Publication WO2009/054 disclosed a packaging bag material for constructing a package with carrying handle part that allows roll winding and back winding for continuous supply. A tape for carrying handle is inserted at a constant pitch in the longitudinal midstream of a tubular base material across the base material. Both end portions of the tape are fusion bonded to surface and backside sheets by providing second heat seal areas. The superior edge side of the bag material is sealed by providing a third heat seal area. The base material at a predetermined location along the opposite side edge of the tape for carrying handle is cut off in the longitudinal direction thereof. After packing the bag with a matter to be packed and opening sealing, at a nonseal area, the tape for carrying handle is pulled outside from the interspace of the sheets to thereby form a carrying handle part. It is, therefore, an object of the present invention to provide an alternative arrangement of the packaging bag with carrying handle with improved load bearing.

SUMMARY OF THE INVENTION

The present invention disclosed a packaging bag with a carrying handle. In one embodiment, the packaging bag comprising a body portion and a carrying handle portion made from a folded single sheet material. The body portion and the handle portion are separated from each other by a seal A. The body portion defines a pocket for holding the product, comprising a first wall and a second wall and a first side edge and a second side edge. One of the side edges is sealed by a second seal area. The non-seal side edge defines an opening for receiving filling of products. The handle portion defines a pocket having a handle strip inserted there through. The handle portion includes a cut away section position at the middle, exposing a portion the handle strip inserted therein. The handle strip is bonded to the handle portion by a third seal on either side of the cut away section along the length of the handle strip. In another embodiment, the packaging bag comprising the body portion that is further include a expandable portion located opposite and parallel to handle portion.

In another embodiment, the packaging bag comprising two handle portions and a bridge section position between the two handle portions.

In another embodiment, the packaging bag comprising the two handle portions and the bridge section position between the two handle portions, and a body portion that is further include a expandable portion located opposite and parallel to the two handle portions.

In another embodiment, the packaging bag comprising further seal on each corner of the body opposite the handle portion. Further and specific embodiments, features and advantages according to the principle of the present invention are described in detail below

BRIEF DESCRIPTION OF DRAWINGS OF EMBODIMENTS OF THE

INVENTION

The accompanying drawings illustrate various embodiments of the principles described herein and are a part of the specification. The illustrated embodiments are merely examples, and do not limit the scope of the claims. The description will be made in reference to the accompanying drawings, in which:

FIG. 1 shows a method of folding of sheet material for producing an embodiment of packaging bag with carrying handle according to the principle of the present invention;

FIG. 2 shows an embodiment of a packaging bag with carrying handle according to the principle of the present invention using the folding method of FIG. 1;

FIG. 3 shows a method of folding of sheet material for producing an embodiment of packaging bag with carrying handle according to the principle of the present invention;

FIG. 4 shows an embodiment of a packaging bag with carrying handle according to the principle of the present invention using the folding method of FIG. 3;

FIG. 5 shows a method of folding of sheet material for producing an embodiment of packaging bag with carrying handle according to the principle of the present invention;

FIG. 6 shows an embodiment of a packaging bag with carrying handle according to the principle of the present invention using the folding method of FIG. 5;

FIG. 7 shows a method of folding of sheet material for producing an embodiment of packaging bag with carrying handle according to the principle of the present invention;

FIG. 8 shows an embodiment of a packaging bag with carrying handle according to the principle of the present invention using the folding method of FIG. 7;

FIG. 9 shows an embodiment of a packaging bag with carrying handle according to the principle of the present invention;

FIG. 10 shows an embodiment of packaging bag with carrying handle according to the principle of the present invention; FIG. 11 shows use of carrying handle of an embodiment of the packaging bag with carrying handle according to the principle of the present invention;

FIG. 12 shows use of carrying handle of an embodiment of the packaging bag with carrying handle according to the principle of the present invention;

FIG. 13 shows an embodiment of the packaging bag with carrying handle according to the principle of the present invention

FIG. 14 shows an embodiment of the packaging bag with carrying handle according to the principle of the present invention prepared in a roll form.

■ FIG. 15 shows an embodiment of the packaging bag with carrying handle according to the principle of the present invention illustrating a re-position of the opening of the bag.

DETAIL DESCRIPTION OF EMBODIMENTS OF THE INVENTION

While specific configurations and arrangement are discussed, it should be understood that this is done for illustrative purposes only. A person skilled in the art will recognized that other configurations and arrangements can be used without departing from the spirit and scope of the present invention.

Further, it should be noted that reference in the specification to "an embodiment", "one embodiment", etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic, or necessarily referring to the same embodiment.

Fig. 1 shows a method of folding of single sheet material forming into an embodiment of a packaging bag 15 with carrying handle according to the principle of the present invention as shown in Fig. 2. In this embodiment, the packaging bag 15 comprising a body portion 20 and a handle portion 25 formed from sheet material. The sheet materials are preferably plastic sheet, with or without laminate coating, and includes plastic that are produced from known method, including blowing, casting, weaving, spundbonding and other methods. The sheet materials may also be other kinds of plastic composite materials, plastic coated natural or synthetic fibers such as paper, wood, fabric, aluminum foil, etc.

The body portion 20 and the handle portion 25 are separated by a seal A 30 which bond a first wall 35 and a second wall 40 of the body portion 20 at a predetermined location. The seal A 30 may be a lap seal or a fin seal and inducing bonding may be by heat, welding, or any other techniques as generally known in the art.

The body portion comprising a first wall 35, a second wall 40, a first side edge 45, and a second side edge 50, a bottom 85 and an opening 60 wherein the first wall 35 and the second wall 40 are selectively sealed by seal B 55 at predetermined position(s) to designate the opening at a predetermined position. The opening 60 is configured to receive feeding of a product into the said packaging bag 15. For example, as shown in FIG. 2 and FIG. 4, as the first wall 35 and the second wall 40 of the body portion 20 is sealed by the seal B 55 on the second side edge 50 it defines a pocket for holding a product, the non-seal side edge 45 or 50 defines an opening 60 for receiving feeding of the products to be packaged. Similarly, if the first side edge 45 were to be sealed, then the opening 60 would form on the second side edge 50. The far edge of the body portion 20, opposite the handle portion became the bottom 85 of the packaging bag 15. The handle portion 25 which is also continuously formed from folding the sheet material defines an insert 65 having at least one handle strip 70 inserted there through. The handle portion 25 includes a cut away section 75 prepared at the middle, exposing a portion of the handle strip 70 inserted therein. The handle strip 70 is a separate strip of material inserted through the insert 65 in the handle portion 25. The handle strip 70 is secured in position inside the insert 65 of the handle portion 25 at a predetermine location, preferably by a seal C 80, at least one seal on each side of the cut away section 75 along the length of the handle strip 70. Other means for securing the handle strip 70 to the handle portion 25 is also possible. The handle strip 70 preferably is made of a separate strip of materials, preferably of different, i.e. greater tensile strength than that of the sheet material making up the packaging bag 15 in order to ensure that the handle strip can withstand the carrying load of the product. The handle strip 70 may be made of the same material as with the sheet material making up the packaging bag 15, but with greater thickness. The handle strip 70 may be also made of other materials including composite or reinforced materials such as plastic, plastic composite material, reinforce natural or synthetic fibers such as fabrics, paper, etc. It is possible to insert more than one handle strips 70 into the insert 65 of the handle portion 25 to enhance strength of the handle strip 70. Preferably the handle strip 70 is made of sheet material with sufficient width such that the said handle strip 70 will not deform or roll and bit into the palm or fingers of handler while the package is being carried. Further, the length of the handle strip 70 at the cut away section 75 may be pre-adjusted prior to securing the handle strip 70 to the handle portion 25. Such length will become the length of the carrying handle of the packaging bag 15. Preferably, the handle portion 25 is positioned longitudinal to the finish packaging bag to ensure a better load distribution of the packaging bag 15 and hence ensure satisfactory performance of the packaging bag 15, i.e. easy to carry and with less or no possibility of stretching or tearing of the handle.

FIG. 4 show a further embodiment of the packaging bag 15 with carrying handle according to the principle of the present invention. In this embodiment, the bottom 85 of the packaging bag is configured to be expandable. In this embodiment, the sheet material is folded as shown in FIG. 3, wherein the sheet material is double folded at the region which is determined to be the bottom of the packaging bag 15 hence the expandable bottom 85 is formed. It is possible to fold the sheet material several times to achieve a greater expansion of the bottom 85 of the packaging bag 15. However, this is less preferred since bonding multilayer of overlaying sheet material together can be difficult.

In a further embodiment, as shown in FIG. 6, the packaging bag 15 with carrying handle may be prepared with double handle portion 25. In this embodiment, the sheet material is folded as shown in FIG. 5. In this embodiment, the sheet material is double folded at the region which is determined to be the handle portion 25 wherein each fold becomes a separate handle portion 25. The arrangement of the handle portion 25 and the handle strip 70 are the same as previously described. Since the packaging bag 15 is made from a continuous single sheet of sheet material, the two handle portions 25 share a common bridge section 90 disposed between them. Once the packaging bag 15 are filled with the pre-weighted produce, the side edge 45, including the opening 60, and bridge section 90 and the insert 65 having the handle strip 70 secured therein are sealed. Thus, in this embodiment, the customer may cut along the bridge section 90 to gain access to the content of the packaging bag 15. Hence, the empty packaging bag 15 may be reused as a carrying bag.

In. a further embodiment, as shown in FIG. 8, the packaging bag 15 includes double handle portions 25 and an expandable bottom 85. The double handle portion 25 and the expandable bottom 85 are formed from the folding method as shown in FIG. 7. The arrangement and configuration of the handle portion 25 and the expandable bottom 85 are as previously described. The packaging bag 15 according to this particular embodiment is useful for large size package with higher load.

In a further embodiment as shown in FIG. 9, the packaging bag 15, further includes an incisionlOO disposed at each corner of the expandable bottom 95 and at each end of each of the handle portion 25, in order to aid bonding of multilayer of sheet material. This is because in an embodiment where double folding is utilized to form either expandable bottom 85 or double handle portion 25, it is more difficult to effectively bonded the multilayer of sheet material together or certain surface of certain type of sheet material is not susceptible to heat bonding, removing the inner layer of sheet material (other than the first wall 35 and the second wall) will improve bonding of multilayer of sheet material.

In a further embodiment, as shown in FIG. 10, the packaging bag 15 further include an diagonal seal 105 disposed at each corner of the expandable bottom 85. This embodiment is particular useful when a full expansion of the expandable bottom 85 is not desired or intentionally restricted. The diagonal seal 105 will crimp each corner of the expandable bottom 85, behind the incision 100, hence the expandable bottom 85 will not fully expand in that corner. This embodiment is useful and desirable for packaging bag 15 for packaging of grain produce such as rice. This feature will avoid accumulation of rice grain in the corner of the packaging bag where is can potentially cause puncture to the bag.

Again as shown in FIG. 1 1 once the packaging bag 15 is filled with pre-weighted product, the side edge 45, including the opening 60, and bridge section 90 and the insert 65 having the handle strip 70 secured therein are sealed to contain the product therein. The cut away section 75 provide easy hand or fingers access to gain access to the exposed handle strip 70, enable the customer to carry the good with comfort. The same is also shown in FIG. 12, for an embodiment with double handle portion 25. In the embodiment as shown in FIG. 12, once the packaging bag 15 is cut open along the along the bridge section 90 to gain access to the content of the packaging bag 15, the empty packaging bag 15 may be reused as general purposes carrying bag.

FIG. 13 shows a further embodiment of the packaging bag 15 according to the present invention. In this embodiment, the packaging bag 15 is further provided with a zipper 95 disposed between the handle portion 25 and the body portion 20. More specifically, the zipper 95 is disposed below the bridge section 90. The zipper 95 is preferably a non-permanent seal zipper, i.e. the zipper is able to disengaged or disengaged as desired. The zipper 95 includes a male and female strip (not shown) disposed on the respective wall first and second walls 35, 40 of the body portion 20 of the packaging bag 15. The male and female strip is configured to couple to one another and that such coupling able to withstand that pressure of the content of the packaging bag 15 such that unwanted disengagement of the zipper 95 cannot occur. In order to access the content of the packaging bag 15, the user can cut along the bridge section 90 and then disengage the zipper 95 to gain access to the content of the packaging bag 15. As the packaging bag 15 is empty of its content, the packaging bag 15 may be reused for other purposes where the bag may be reseal with the zipper 95. FIG. 14 shows an embodiment of the packaging bag 15 in a roll form. This embodiment is particularly suitable for automate packaging of the product. In this embodiment, each individual bag is connected to form a continuous roll. The second and subsequent packaging bag 15 adjacent from the first packaging bag 15 with the opening 60 is originally prepared without the existing opening 60. However, once the first packaging bag 15 is filled with the product, the automate packaging apparatus will cut off the filled the packaging bag below the seal B 55, hence creating an opening 60 for the next packaging bag 15 permitting continue operation of the packaging.

As certain embodiment of the packaging bag 15 with carrying handle according to the present invention is intended for automate or industrial scale packaging, it is, therefore, preferable that the packaging bag 15 is produced from a single sheet material. However, it will be appreciate by a person skilled in the art that with the modification of manufacturing apparatus or changes in manufacturing process, including manual production, use of more than one sheets of the material is also possible. Further, while the packaging bag 15 may be in a continuous roll to facilitate automate or industrial scale packaging, it is also possible to prepared the packaging bag 15 as individually separate packaging bag 15 for use in small to medium enterprises where to the packaging may be done manually. Also, it is possible to reposition the arrangement of the first and second side edge 45, 50, the opening 60, and the bottom 85 and such reposition of the elements are regarded to be within the scope and spirit of the present invention. For example, it is possible to seal side edge 45 and designate the opening 60 to locate at the side edge 50. It is also possible to seal both on side edges 45 and 50 and designate the opening 60 to locate at the bottom of the packaging bag 15, as shown in FIG. 15. Designating the opening 60 at the bottom 85, however, is less preferred for an embodiment which the bottom 85 is an expandable bottom. Further, it is also possible that the handle strip 70 is not necessary a strip-like material. The handle strip 70 may be in a form of rope-like or rod-like materials of which permit securing to the handle portion of the packaging bag 15 and that the means for securing the handle strip 70 may be in a form others than heat seal or welding. The said means may be change to suit each different structure or materials of the handle strip. As it is apparent from the above description, the configuration of the packaging bag 15, in particular, the arrangement and configuration of the handle portion 25 and the handle strip 70 as set out above provides a higher performance packaging bag 15 with carrying handle enable the customer to carry the purchased item comfortably and without failing of the carrying handle as set out in the object of the invention above.

Claims

CLAIMS We claim:

1. A packaging bag (15) comprising a body portion (20) and a handle portion (25) formed from sheet material, the body portion (20) and the handle portion (25) is separated by a seal A (30); the body portion (20) comprising a first wall (35), a second wall (40), a first side edge 45, and a second side edge 50, an opening (60) and a bottom (85); the first wall (35) and the second wall (40) are selectively sealed at a predetermined position to designate the opening (60) at a predetermined position to receive feeding of a product into the said packaging bag (15);

characterized in that the handle portion (25) is continuously formed from the same sheet material which formed the body portion (20); and wherein the handle portion (25) defines an insert (65) configured to receive at least one handle strip (70) inserted therein, the said handle portion (25) comprising a cut away section (75) prepared at the middle exposing a portion of the handle strip (70) inside the insert (65); the in-exposed portion of the handle strip (70) is secured in position to the insert (65) of the handle portion (25) at a predetermine location by a seal C (80) on each side of the of the cut sway section (75) along the length of the handle strip (70).

2. The packaging bag (15) according to claim 1, wherein the handle portion (25) is a double handle portion; the said double handle portions (25) derived from double folding the same sheet material forming the body portion (20) of the packaging bag (15) at the region which is determined to be the handle portion (25); the two handle portions (25) is separated by a bridge section (90) disposed between the said two handle portions (25).

3. The packaging bag (15) according to claim 1 or 2 wherein the bottom (85) of the packaging bag is configured to be expandable.

4. The packaging bag (15) according to claim 3, further comprising incisions (100), each of which is disposed at each corner of the of the expandable bottom (85), and at each end of each handle portion (25) where multilayer of sheet material is to be bonded.

5. The packaging bag (15) according to claim 4, wherein the handle strip (70) is a separate strip of material having greater tensile strength than that of the sheet material forming the body portion (20) and the handle portion (25) of the packaging bag (15).

6. The packaging bag (15) according to claim 5, wherein the said packaging bag (15) further includes a diagonal seal (105) disposed at each corner of the expandable bottom (85) behind the incision 100.

7. The packaging bag (15) according to any one of claim claims 2- 6 further comprising a zipper disposed below the bridge section 90; the said zipper comprising a male and a female strip disposed on the respective first and second wall of the body portion 20.

8. The packaging bag (15) according to any one of the preceding claims, wherein the handle strip (70) is made composite or reinforced materials including plastic, plastic composite material or reinforced natural or synthetic fibers including fabrics, paper.

9. The packaging bag (15) according to any one of the preceding claims, wherein the body portion (20) and the handle portion (25) is made of sheet material including plastic, reinforced natural or synthetic fibers including fabrics, paper wood, aluminum foil.

10. The packaging bag (15) according to claim 9, wherein the sheet material is plastic, including plastic with laminate coating, plastic without laminate coating.

1 1. The packaging bag (15) according to any one of the preceding claim wherein the packaging bag (15) is connected in a continuous roll.