Technical Field
[0001] The present disclosure generally relates to paper bags. In particular, it relates
to a paper bag for receiving and containing goods and comprising a handle.
Background and Prior Art
[0002] Recent development of new paper materials having enhanced properties and qualities
makes it possible to replace polymer and plastic materials by paper based materials
in many different applications. This is highly desirable since paper materials generally
have a much lower environmental impact than traditional plastic materials.
[0003] One area where it is desirable to replace plastics by paper is within the packaging
industry and especially in single use packaging. Such single use packages are used
e.g. in supermarkets and other food stores where products are sold by the weight.
Here, customers pick the desired quantity of an unpacked product from e.g. a shelf,
a tray, a table or the like and collect it in a single use package such as a bag.
For granular and other bulk products, the desired quantity may be dispensed into the
package from a so called gravity feed dispenser, a scope bin or the like. The so filled
single use package is thereafter brought to the check-out counter where it is weighted
and payed for. Alternatively, the customer weighs the package and attaches an automatically
printed price label which is scanned at the check-out counter.
[0004] At home, the customers often dispose the single use package when the product has
been unpacked. Presently, the vast majority of such single use packages are made of
plastics and the very large number of such packages being disposed each year, around
the world, constitutes a sever burden and threat to the environment.
[0005] In order to reduce the environmental impact of single use packages it has been suggested
to use paper for forming such single use packages. Such paper packages mat be recyclable
and/or biodegradable and thereby cause less environmental damages than traditional
plastic packages. Using paper for forming single use packages also gives the package,
to a higher degree than plastics, a sense of quality and naturalness which often is
appreciated by the user.
[0006] However, earlier attempts to utilize paper for forming bags e.g. for products that
are sold by the weight exhibit certain disadvantages. One problem relies in that it
is difficult to open the bag from a flattened state and to keep the mouth open during
loading of the products. Another problem is that it has proven difficult to grasp
and carry the bag when loaded with products.
Summary
[0007] One object of the present disclosure is to provide an enhanced paper bag for receiving
and containing goods.
[0008] Another object is to provide such a bag which is suitable for use as a single use
bag, e.g. for products, such as fruit and vegetables, that are sold by the weight.
[0009] A further object is to provide such a bag which is simple in use.
[0010] A still further object is to provide such a bag which facilitates loading the bag.
[0011] Yet another object is to provide such a bag which facilitates holding and carrying
the bag.
[0012] A still further object is to provide a such a bag that is environmentally friendly,
such as fully recyclable and/or biodegradable.
[0013] Still another object is to provide such a bag which is strong and durable and capable
of holding comparatively heavy loads without breakage.
[0014] Yet a further object is to provide such a bag which may be manufactured at a comparatively
low cost.
[0015] Another object is to provide such a bag which may be loaded through the open mouth
in an essentially horizontal direction.
[0016] Another object is to provide such a bag which has an esthetically appealing appearance
and gives a sense of quality and naturalness.
[0017] A still further object is to provide a bag that is compact to store.
[0018] A still further object is to provide a bag that solves several or all of the foregoing
objects.
[0019] According to one aspect, there is provided a paper bag for receiving and containing
goods. The bag comprises a body formed from a single first paper blank and a handle.
The body comprises: a first wall panel having two longitudinal side edges and an upper
edge; a second wall panel having two longitudinal side edges and an upper edge. Two
gusset sections are arranged such that each gusset section connects a longitudinal
side edge of the first wall panel with a corresponding longitudinal side edge of the
second panel. An open mouth portion is formed between the upper edges of the first
and second wall panels. A closed bottom section comprises mutually overlapping bottom
panels which form extensions of the first wall panel, the second wall panel and the
gusset sections. The handle comprises a handle panel made of paper, which handle panel
extends along the upper edge of the first wall panel and is attached to the first
wall panel by adhesive areas comprising two first adhesive areas arranged on the outside
of the first wall panel, below the first panel's upper edge.
[0020] The two first adhesive areas typically extend at a mutual distance, from the upper
edge of the first wall panel, a distance corresponding to the height of the handle
panel, in the direction towards the bottom section of the body. Hereby a downwardly
open handle forming pocket is formed between the outside of the first wall panel and
the inside of the handle panel, which pocket is sealed sidewise by said two first
adhesive areas.
[0021] In use, goods may be loaded into the bag through the upper open mouth portion. Grace
to the gusset sections, the bag adopts an expanded state when an item is contained
in the bag. The bag may adopt several expanded states, depending on the volume of
the goods received in the bag, i.e. the degree to which the bag is filled.
[0022] The handle arranged at the upper edge of the first panel may easily be grabbed and
held by introducing fingers into the downwardly open pocket which is formed between
the first wall panel and the handle panel. Since the handle is arranged at the upper
edge of the first wall panel, i.e. at the open mouth portion, the mouth portion will
be maintained open when the bag has been expanded and a first item has been loaded.
The arrangement of the handle at the upper edge of the first panel will, in combination
with the gravity exerted by a loaded item, prevent the open mouth portion from closing.
Hereby loading of the bag is highly facilitated.
[0023] Additionally, in comparison with known paper bags for products that are sold by the
weight, where no handle normally is provided, the handle arranged at the upper edge
greatly facilitates holding and carrying the bag, especially when the bag is heavily
loaded.
[0024] Further, the arrangement of the handle at the outside of the bag, in proximity to
the mouth allows for, in combination with the comparatively high stiffness of the
paper material forming the bag, that the bag may be loaded in a horizontal direction.
I.e. the paper bag may be held by the handle, such that the first and second wall
panels are oriented essentially horizontally and the products may be inserted through
the mouth in a horizontal direction. This way of loading the bag may be advantageous
in some applications, e.g. when a tool such as a scoop or a spade is used for loading
the bag.
[0025] According to one preferred embodiment, the handle panel is formed from a separate
second paper blank and the adhesive areas comprise at least one second adhesive area
arranged on the first wall panel at or in proximity to the first wall panel's upper
edge. By forming the handle panel from another paper blank than the body, it is possible
to individually select advantageous paper qualities and properties for the body and
the handle panel respectively. Additionally, this embodiment also reduces the spillage
of paper material during manufacturing the bag, when the first and second blanks are
cut out from respective webs of paper.
[0026] At an alternative embodiment the handle panel may be formed from the first paper
blank. At such embodiments the handle panel may comprise a flap which extends from
and is folded about the upper edge of the first wall panel.
[0027] A second adhesive area may be arranged on the outside of the first wall panel. At
such instances the second adhesive typically extends along the upper edge of the first
wall panel and forms the upper seal of a handle forming pocket arranged between the
first wall panel and the handle panel. This allows for that a single unfolded sheet
of paper may form the handle panel. Additionally, this also allows for that all adhesive
areas for attaching the handle panel to the body are arranged on the same side of
the first wall panel, which facilitates applying the necessary adhesive during manufacturing
of the bag.
[0028] Alternatively or in combination a second adhesive area may be arranged at the inside
of the first wall panel and the handle panel may then be folded over the first wall
panel's upper edge. At such instances, the second adhesive area arranged on the inside,
may preferably extend along the upper edge of the first wall panel. Thereby an alternative
upper seal of the handle forming pocket is formed. Such an inner second adhesive area
may increase the strength and durability of the handle.
[0029] The first adhesive areas may extend along or in proximity to a respective one of
the first wall panel's longitudinal side edges. By this means the width of the handle
panel is maximized, thereby allowing introduction of several fingers into the handle
forming pocket.
[0030] At some embodiments, the handle panel may comprise a handle flap formed from the
first paper blank, which handle flap is folded onto the outside of the first wall
panel. At such embodiments the second adhesive area may be omitted since the handle
forming pocket is sealed at the upper edge of the first wall panel by the fold connecting
the first wall panel with the handle panel.
[0031] A lower edge portion of the handle panel may comprise an edge flap folded about the
lower edge of the handle panel. Such a folded edge portion arranged at the lower opening
of the handle forming pocket reduces the risk of injuring the fingers when grabbing
the handle. The folded edge portion also increases the strength of the handle's lower
portion.
[0032] The edge flap may preferably be folded onto the inside of the handle panel, i.e.
the side facing the outside of the first wall panel. By this means, the folded flap
is concealed such the it does not influence the visual appearance of the bag.
[0033] The folded edge flap may extend over essentially the entire height of the handle
panel, thereby forming a double layer handle. By this means the strength of the entire
handle is increased.
[0034] The paper for forming the first paper blank used to form the body of the bag may
be given suitable properties according to the following, such that it may withstand
comparatively heavy loads.
[0035] The first paper blank may be formed of a kraft paper.
[0036] The first paper blank may be formed of a paper having a grammage of 35-85 g/m2 measured
according to ISO 536:2012.
[0037] The first paper blank may be formed of a paper having a geometric tensile energy
absorption (TEA) index of 1.9 - 3.3 J/g as measured according to ISO 1924-3:2005.
[0038] The first paper blank may be formed of a paper having a tear index of 9.0 - 16.0
mNm2/g in the machine direction and the cross direction as measured according to ISO
1974:2012.
[0039] The paper for forming the second paper blank used to form the handle panel of the
bag may be given suitable properties according to the following, such that it may
withstand the higher load concentrations and forces that apply to the handle panel
in use.
[0040] The second paper blank may be formed of a kraft paper having a grammage of 100 -
200 g/m2 measured according to ISO 536:2012.
[0041] The second paper blank may be formed of a kraft paper having a geometric tensile
energy absorption (TEA) index of 2.3 - 4.5 J/g as measured according to ISO 1924-3:2005.
[0042] The second paper blank may be formed of a kraft paper having a tear index of 13.0
- 20.0, preferably 14.0 - 20.0 mNm
2/g in the machine direction and 14.0 - 23.0, preferably 15.5 - 23.0 mNm
2/g the cross direction as measured according to ISO 1974:2012.
[0043] The first and/or second wall panels may comprises a see through window formed of
a transparent window material other than the material forming the first paper blank.
By this means goods carried in the bag may easily be seen and identified from outside
of the bag without the need to look through the mouth portion. This facilitates the
handling for example at the check-out counter when purchasing products sold by the
weight.
[0044] The first and/or the second wall panels may exhibit a cut out opening and the window
material may cover the cut out opening and be attached to the first and/or second
wall panel by at least one third adhesive area arranged around or in proximity to
the edge of the cut out opening.
[0045] The first blank may be formed of white MF kraft paper provided by BillerudKorsnäs
under the name "Axello Swan" and having a grammage of 70 - 80 g/m
2. Alternatively, the first blank may be formed of white sack kraft paper provided
by BillerudKorsnäs under the name "Preformance White SE" and having a grammage of
70 - 80 g/m
2.
[0046] The second blank may be formed of white kraft paper provided by BillerudKorsnäs under
the name "PulpWrap SE" and having a grammage of 130 - 145 g/m
2. Alternatively, the second blank may be formed of white sack kraft paper provided
by BillerudKorsnäs under the name "QuickFill® White Single" and having a grammage
of 110 - 120 g/m
2. A further alternative is to form the second blank from a kraft paper provided by
BillerudKorsnäs under the name of "FibreForm®" and having a grammage of 100-200 g/m
2.
[0047] The paper material of the first and/or the second blank may be coated, e.g. with
a pigment coating.
[0048] Each gusset section may for example comprise a pair of subpanels folded along a gusset
fold line. The two subpanels of the gusset may have a generally flattened "V" shape
when the bag is in a collapsed state. Thus, in the collapsed stated of the bag, the
gusset fold line may have an acute angle. In one expanded state of the bag, the gusset
fold line may have an obtuse angle such that the gusset section is concave. In a further
expanded state of the bag, the gusset fold line may have a more obtuse angle. Alternatively,
at least one gusset section of the bag may be flat or substantially flat when the
bag adopts one or more expanded states.
[0049] Since the bag may be substantially flat in a collapsed state, several empty bags
may be stored and/or transported in a stack which is space saving.
[0050] Further objects and advantages of the paper bag will appear from the following description
of exemplifying embodiments and from the appended claims.
Brief Description of the Drawings
[0051] Further details, advantages and aspects of the present disclosure will become apparent
from the following embodiments taken in conjunction with the drawings, wherein:
Fig. 1a is a perspective view from behind illustrating a paper bag according to a
first embodiment, in a collapsed state and fig.ib is a perspective view from the front
of the paper bag shown in fig. 1a.
Fig. 2a is a perspective view from the front the paper bag shown in fig. 1a in an
expanded state and fig. 2b is a perspective view from behind of the paper bag shown
in fig. 2a.
Fig. 3a is a plan view of a first blank for forming the body of the paper bag shown
in figs. 1a-b and 2a-b.
Fig 3b is a plan view of the first blank shown in fig 3a, to which a handle panel
formed of a second blank has been attached.
Fig. 4a is a perspective view from the front illustrating a paper bag according to
a second embodiment in a collapsed state and fig. 4b is a perspective view from behind
of the paper bag shown in fig. 4a.
Fig. 5a is a perspective view from the front the paper bag shown in fig. 4a in an
expanded state and fig. 5b is a perspective view from behind of the paper bag shown
in fig. 5a.
Fig. 6 is a plan view of a first blank for forming the body of the paper bag shown
in figs. 4a-b and 5a-b.
Detailed Description of Exemplifying Embodiments
[0052] In the following, a paper bag according to the invention for receiving and containing
goods will be described. The same reference numerals will be used to denote the same
or similar structural features.
[0053] Figs 1a-b illustrate a paper bag according to a first embodiment in a collapsed state
and figs. 2a-b show the same paper bag in an expanded state. Fig. 3a shows a first
blank for forming the body of the bag according to the first embodiment and fig. 3b
illustrates the first blank after attachment of a handle panel during manufacturing
of the bag.
[0054] With reference to figs. 1a-3b, the paper bag according to the first embodiment comprises
a body 1 formed of a first paper blank A and a handle 5 formed of a second paper blank
B. The first blank A is made of white MF kraft paper provided by BillerudKorsnäs under
the trademark "Axello Swan" and has a grammage of 80 g/m
2. The second blank B is made of a white kraft paper provided by BillerudKorsnäs under
the trademark "PulpWrap SE" and has a grammage of 130 g/m
2. However other paper materials exhibiting suitable strength, stretchability and bending
resistance may also be used for forming the first and second blank.
[0055] The body 1 comprises a first wall panel 10 forming a front panel and a second wall
panel 20 forming a rear panel. The first wall panel 10 exhibits a first 11 and a second
12 longitudinal side edge and an upper edge 13. Correspondingly, the second wall panel
20 exhibits a first 21 and a second 22 longitudinal side edge and an upper edge 23.
An open mouth portion 40 is formed between the upper edges 13, 23 of the first 10
and second 20 wall panels
[0056] A first gusset section 31 connects the first side edges 11, 21 and a second gusset
section 32 connects the second side edges 12, 22. As best seen in fig. 3a the first
gusset section 31 comprises a first gusset panel 31a connected to the first wall panel
10 by fold line 11a which constitutes the first longitudinal side edge 11 of the first
wall panel 10 and a second gusset panel 31b connected to the first gusset panel 31a
by fold line 31c. The second gusset panel is also connected to the second wall panel
by fold line 21a which constitutes the first longitudinal side edge 21 of the second
wall panel 20. Correspondingly, the second gusset section 32 comprises a first gusset
panel 32a connected to the first wall panel 10 by fold line 12a which constitutes
the second longitudinal side edge 12 of the first wall panel and a second gusset section
32b which is connected to the first gusset section 32a by fold line 32c.
[0057] A connection flap 33 is connected to the second longitudinal side edge 22 of the
second wall panel 20 by fold line 22a. When assembling the paper bag, the connection
flap 33 is attached to the rear side of the second gusset section's 32 second gusset
panel 32b by means of an adhesive area applied to the upper surface of connection
flap 33 as seen in fig. 3a.
[0058] The bag further comprises a closed bottom section 50 which is arranged longitudinally
opposite to the first upper edges 13, 23 and the open mouth portion 40. The bottom
section 50 constitutes a so called block bottom. The closed bottom section 50 is formed
of first 10', 20', 31a', 31b', 32a', 32b', 33' and second 10", 20", 31a", 31b", 32a",
32b", 33" longitudinal extension panels of the first wall panel 10, the second wall
panel 20, the first 31a, 32a and second 31b, 32b gusset panels and the connection
flap 33. These longitudinal extensions are connected by fold lines as seen in fig.
3a. The closed block bottom section 50 is formed by folding the extension panels in
an overlapping manner and connecting them by adhesive areas 10"g, 20"g, 33"g applied
to the extension panels 10", 20" and 33". Such forming of block bottom sections is
known in the art and not described more in detail here.
[0059] The handle 5 comprises a rectangular handle panel 6 of paper formed from the second
paper blank. The handle panel 6 is attached to the outside of the first wall panel
10 by means of two first 10g' and a second 10g" adhesive areas. The first adhesive
areas 10g' are arranged below the upper edge 13 of the first wall panel and extend
longitudinally towards the bottom section 50 in proximity to a respective side edge
11, 12 of the first wall panel 10. The sidewise outer edges of the first adhesive
areas 10g' extend in parallel with the side edges 11, 12 of the first wall panel and
the inner edges of the first adhesive areas 10g' tapers towards the bottom section
50, such that the mutual distance between the first adhesive areas 10g' increases
in the direction from the mouth portion 40 towards the bottom section 50 of the body
1.
[0060] The second adhesive area 10g" is, in this embodiment, also arranged on the outside
of the first wall panel 10 and extends along the upper edge 13 of the first wall panel,
between the two first adhesive areas 10g'. At this embodiment the first 10g' and second
10g" adhesive areas thus form a single joint, generally U-shaped adhesive area. The
rectangular handle panel 6 has a width which corresponds to the distance between the
sidewise outer edges of the first adhesive areas 10g' and a height which corresponds
to the distance between the upper edge of the second adhesive area 10" to the lower
edges of the first adhesive areas 10g'.
[0061] When the handle panel 6 has been attached to the first wall panel 10 by means of
the first 10g' and second 10g" adhesive areas, a downwardly open handle pocket is
formed. The handle pocket is sealed along the upper edge 13 and the side edges 11,
12 of the first wall panel 10.
[0062] The so formed handle 5 allows the user of the bag to insert one or a few fingers
of one hand from below into the handle pocket and to conveniently hold the bag with
the palm turned upwards and the inserted fingers slightly bent. By utilizing the handle
the bag may thus be held and carried by means of a form locking grip rather than friction
grip. In comparison to traditional single use paper bags without handles, where the
user needs to pinch a wall panel of the bag, this greatly reduces the effort for holding
and carrying the bag when loaded.
[0063] Since the handle 5 is arranged at the upper edge 13 of the first wall panel 10, the
gusset sections 31, 32 will tend to expand when a first product has been loaded into
the bag and to keep the mouth portion 40 open. Thereby, continued loading of the bag
is greatly facilitated.
[0064] In figs. 4a-b, 5a-b and 6 a paper bag according to a second embodiment is illustrated.
Just as in the first embodiment this paper bag comprises a body 100 formed of a first
paper blank C and a handle 105 formed from a second paper blank (not shown). The body
comprises a first wall panel 110 having longitudinal side edges 111, 112 and an upper
edge 113 as well as a second wall panel 120 having longitudinal side edges 121 and
122 and an upper side edge 123. The side edges 111, 112, 121, 122 of the first 110
and second 120 wall panels are connected by respective gusset sections 131, 132 and
connection flap 133 in the same way as shown in figs. 1a-3b and described above.
[0065] The handle 105 comprises a handle panel 106 which is attached to the outer side of
the first wall panel 110 by two first adhesive areas 110g' and a second adhesive area
110g". This also fully corresponds to what is described above with reference to figs.
1a-3b.
[0066] The bag according to the second embodiment differs to the first embodiment in that
the closed bottom section 150 form a so called V-bottom, instead of a block bottom.
The bottom section 150 is formed of a number of first extension panels 110', 120',
131a', 131b', 132a', 132b' forming longitudinal extensions of first wall panel 110,
second wall panel 120 and gusset wall panels 131a, 131b, 132a, 132b respectively.
A second extension panel 110" further extends first extension panel 110' of the first
wall panel 110. Adhesive areas 110"g, 120'g are applied to the second extension panel
110" and first extension panel 120' respectively. The closed V-bottom section 150
is formed by overlapping folding of the first extension panels 110', 120', 131a',
131b', 132a', 132b' and connecting them by means of adhesive area 120'g and by folding
the second extension panel 110" onto the outer side of second wall panel 120 where
it is attached by means of adhesive area 110"g. Such forming of V-bottom sections
is known in the art and not further described here.
[0067] The bag according to the second embodiment also differs from the first embodiment
in that it comprises a transparent window 160 arranged in the first wall panel 110.
The first wall panel 110 exhibits a circular cut-out opening 160a arranged below the
handle 105. In the shown example an adhesive area 160g surrounds the cut-out opening
160a on the side forming the outer side of first wall panel 110, when the bag has
been assembled. A circular sheet of transparent material 160b is attached to the first
wall panel 110 by means of the adhesive area 160g such that it covers the cut out
opening 160a. However, it may be preferable that the adhesive area and the transparent
sheet are applied on that side of the panel that forms the inner side of the bag.
This could be effected by applying the adhesive and the transparent sheet to the paper
web in a converting machine before the web has been folded to a tubular configuration.
The adhesive could either be applied to the paper web or to the transparent sheet
before the sheet is applied to the paper web.
[0068] The transparent sheet may be formed of plastic material, which preferably is recyclable
or biodegradable. Even more preferable, the transparent sheet is formed of recyclable
and/or biodegradable paper material.
[0069] The paper bag according to the second embodiment exhibits the same advantages as
the first embodiment with regard to the handle. In addition the transparent window
allows for identifying the content of the bag without looking through the mouth portion
140.
[0070] A common feature of the embodiments described above is that all adhesive areas are
applied to the upper side of the first blank A, C as seen in the figures. This greatly
facilitates manufacturing of the bag since all application of the adhesive may be
done from above in the converting machine during assembly.
[0071] A further advantage of the bag is that the same adhesive may be used both for forming
the body of the bag and for attaching the handle panel as well as the transparent
window sheet, when applicable. This also facilitates manufacturing. Preferably a starch
based biodegradable adhesive is used at all adhesive areas.
[0072] Instead of forming the adhesive areas as respective continuous zones, it is also
possible that some of the adhesive areas such as adhesive areas 10g', 10g", 110g',
110g" for attaching the handle panel are formed as intermittent or discontinuous lines
or dots.
[0073] According to an embodiment not shown in the figures, the handle panel is folded over
the upper edge of the first wall panel and attached by a second adhesive area to the
inside of the first wall in proximity to the upper edge. At such embodiments the second
adhesive area 10g", 110g" shown in the figures may be omitted or may be maintained.
Such attachment of the handle panel may increase the attachment force for the handle.
[0074] At a further not shown embodiment, a lower portion of the handle blank may be folded
about the lower horizontal edge of the handle panel, such as to provide a double layer
handle panel at least at the lower portion of the handle. Such folding of the lower
edge of the handle blank reduces the risk of being injured by cutting when grabbing
the handle. At a not shown variation of this embodiment, the folded portion of the
handle blank may extend over a longer portion, such as over the majority or essentially
the entire longitudinal length of the handle. By this means the strength of the handle
is further increased.
[0075] According to still a not shown embodiment, the handle panel is formed from and made
integral with the first paper blank for forming the body of the bag. At such embodiments
the handle panel may be formed as an upper extension of the first wall panel and be
connected to the first wall panel by a fold line which, when the bag is assembled
defines the upper edge of the first wall panel. The so formed handle panel may be
folded and attached onto the outside of the first wall panel by first adhesive areas
arranged generally as shown in the figures.
[0076] At another not shown embodiment, a see through window formed of a transparent material
extends over the entire longitudinal length of the bag. At such embodiments a first
longitudinal edge of the transparent sheet may be fixed by adhesive to a longitudinal
edge of the first, panel, the second panel, any of the gusset panels or the connection
flap before the paper web is folded into a tubular configuration in the converting
machine. After forming the tubular configuration, the second longitudinal edge of
the transparent sheet is fixed by adhesive to a longitudinal edge of a corresponding
panel formed of the first paper blank.
[0077] While the present disclosure has been described with reference to exemplary embodiments,
it will be appreciated that the present invention is not limited to what has been
described above. Although the bag may be produced with the dimension ratios presented
in the drawings, it will be appreciated that the dimensions of the parts may be varied
as needed. Accordingly, it is intended that the present invention may be limited only
by the scope of the claims appended hereto.
1. A paper bag for receiving and containing goods, the bag comprising a body (1, 101)
formed from a single first paper blank (A, C) and a handle (5, 105), wherein the body
comprises:
- a first wall panel (10, 110) having two longitudinal side edges (11, 12, 111, 112)
and an upper edge (13, 113) ;
- a second wall panel (20, 120) having two longitudinal side edges (21, 22, 121, 122)
and an upper edge (23, 123);
- two gusset sections (31, 32, 131, 132), each gusset section connecting a longitudinal
side edge (11, 12, 111, 112) of the first wall panel (10, 110) with a corresponding
longitudinal side edge (21, 22, 121, 122) of the second panel (20, 120);
- an open mouth portion (40, 140) formed between the upper edges (13, 23, 113, 123)
of the first and second wall panels;
- a closed bottom section (50, 150) comprising mutually overlapping panels which form
extensions of the first wall panel, the second wall panel and the gusset sections,
wherein
the handle (5, 105) comprises a handle panel (6, 106) made of paper, which handle
panel extends along the upper edge (13, 113) of the first wall panel and is attached
to the first wall panel (10, 110) by adhesive areas comprising two first adhesive
areas (10g', 110g') arranged on the outside of the first wall panel (10, 110), below
the first panel's upper edge (13, 113).
2. A paper bag according to claim 1, wherein the handle panel (6, 106) is formed from
a separate second paper blank (B) and wherein the adhesive areas comprise at least
one second adhesive area (10g", 110g") arranged on the first wall panel (10, 110)
at or in proximity to the first wall panel's upper edge (13, 113).
3. A paper bag according to claim 2, wherein a second adhesive area (10g", 110g") is
arranged on the outside of the first wall panel (10, 110).
4. A paper bag according to claim 2 or 3, wherein a second adhesive area is arranged
at the inside of the first wall panel and wherein the handle panel is folded over
the first wall panel's upper edge.
5. A paper bag according to any of claims 1-4, wherein the first adhesive areas (10g',
110g') extend along or in proximity to a respective one of the first wall panel's
longitudinal side edges (11, 12, 111, 112).
6. A paper bag according to claim 1, wherein the handle panel comprises a handle flap
formed from the first paper blank, which handle flap is folded onto the outside of
the first wall panel.
7. A paper bag according to any of claims 1-6, wherein a lower edge portion of the handle
panel comprises an edge flap folded about the lower edge of the handle.
8. A paper bag according to any of claims 1-7, wherein the first paper blank (A, C) is
formed of a paper having a grammage of 35-85 g/m2 measured according to ISO 536:2012.
9. A paper bag according to any of claims 1-8, wherein the first paper blank (A, C) is
formed of a paper having a geometric tensile energy absorption (TEA) index of 1.9
- 3.3 J/g as measured according to ISO 1924-3:2005
10. A paper bag according to any of claims 1-9, wherein the first paper blank (A, C) is
formed of a paper having a tear index of 9.0 - 16.0 mNm2/g in the machine direction and the cross direction as measured according to ISO 1974:2012.
11. A paper bag according to any of claims 1-10, wherein the second paper blank (B) is
formed of a kraft paper having a grammage of 100 - 200 g/m2 measured according to ISO 536:2012.
12. A paper bag according to any of claims 1-11, wherein the second paper blank (B) is
formed of a kraft paper having a geometric tensile energy absorption (TEA) index of
2.3 - 4.5 J/g as meassured according to ISO 1924-3:2005.
13. A paper bag according to any of claims 1-12, wherein the second paper blank (B) is
formed of a kraft paper having a tear index of 13.0 - 20.0, preferably 14.0 - 20.0
mNm2/g in the machine direction and 14.0 - 23.0, preferably 15.5 - 23.0 mNm2/g the cross direction as measured according to ISO 1974:2012.
14. A paper bag according to any of claims 1-13 wherein the first (110) and/or second
wall panels comprises a see through window (160) formed of a transparent window material
other than the material forming the first paper blank (A, C).
15. A paper bag according to claim 14, wherein the first (110) and/or the second wall
panels exhibit a cut out opening (160a) and the window material covers the cut out
opening and is attached to the first (110) and/or second wall panel by at least one
third adhesive area (110g) arranged around the in proximity to the edge of the cut
out opening.