MX2013014520A

MX2013014520A - A package of sheet products and method of manufacturing thereof.

Info

Publication number: MX2013014520A
Application number: MX2013014520A
Authority: MX
Inventors: Björn Larsson; Annie Sporre Thorburn; Magnus Falk
Original assignee: Sca Hygiene Prod Ab
Priority date: 2011-06-15
Filing date: 2011-06-15
Publication date: 2014-01-31
Also published as: EP2720593A4; US20140110299A1; CN103987305A; WO2012173533A1; EP2720593A1; AU2011371023A1; RU2014101064A; RU2558897C1

Abstract

The invention relates to a package (1) of folded sheet products, in particular hand wipes, made of tissue paper or nonwoven. The package (1) comprises a stack (2) of said sheet products, which stack (2) having an upper surface (3), a lower surface (4), and four side surfaces (5, 6, 7, 8) connecting said upper and lower surfaces (3, 4). A binding material (17) is applied on at least two opposite side surfaces (5, 6; 7, 8) of said stack (2) and bonded to at least two of said sheet products for retaining package integrity during handling thereof, whilst allowing separation of end sheet products (9; 11) from said package (1). A method for producing a package (1) is also provided.

Description

A PACKAGE OF LEAF PRODUCTS AND METHOD OF MANUFACTURE OF THE SAME TECHNICAL FIELD The present invention relates to a package of folded sheet products, in particular hand wipes, made of tissue or non-woven paper. The package comprises a stack of the sheet products, where the stack has an upper surface, a lower surface, and four side surfaces connecting the upper and lower surfaces.

PREVIOUS TECHNIQUE Distributors located in restrooms and other places where absorbent hand-drying items are desired may contain folded sheet products. The folded sheet products may come in a package containing a stack of folded sheet products where the outer wrap must be removed before loading the dispenser. After removing the outer wrapper from the stack of folded sheet products, it has to be handled with care so that the sheet products do not fall out of the stack. This makes the handling of a stack of folded sheet products difficult, and the loading of such distributors can be time consuming for a custodian or janitor responsible for loading the distributors.

DE 101 59 570 Al describes a package of products of folded sheet wherein each sheet product is attached to at least one other sheet product by means of a bonding agent located on contact surfaces of the sheet products, such that sheet products can be distributed even in a state where the package is disposed outside of a sheet product distributor without risking the pile collapsing.

The problems with the solution according to DE 101 59 570 Al is that the bonding agent can adhere to the surface of the leaf products which makes drying undesirable. In the case where the binding agent is very strong or unevenly distributed over the sheet products, the sheet products may tear or break during the separation of the sheet products.

Therefore, there is a need for an improved package of folded sheet products that eliminates the disadvantages mentioned in the above.

THE INVENTION The object of the present invention is to provide an inventive package comprising a stack of folded sheet products where the previously mentioned problems are partially avoided. The object is achieved by the characteristics of the characterization portion of claim 1, wherein the bonding material is applied on at least two surfaces opposite sides of the stack and joins at least two of the sheet products to retain the integrity of the package during handling thereof, while allowing a separation of the end sheet products from the package. A method of manufacturing a package is also described. This is achieved by the characteristics of the characterization portion of claim 15, which comprises the steps of: providing a package comprising a stack of the sheet products, the stack of which has a top surface, a bottom surface, and four side surfaces connecting the top and bottom surfaces; - applying the bonding material on at least two opposite side surfaces of the stack and joining the joining material to at least two of the sheet products to retain the integrity of the package while allowing a separation of the end sheet products from the package .

The present invention relates to a package of folded sheet products, in particular hand wipes, made of tissue or non-woven paper. The package comprises a stack of sheet products, where the stack has a top surface, a bottom surface, and four side surfaces connecting the top and bottom surfaces. A bonding material is applied over at least two opposite side surfaces of the stack and at least two of the sheet products are attached to retain the integrity of the package during the handling thereof, while allowing a separation of the extreme sheet products of the package.

A package according to the invention allows a quick and economical solution to provide improved package integrity and results in a package where handling becomes easier and faster, for example, during the loading of a package in a distributor. By applying the joining material to the side surfaces of the stack, the integrity of the package is conserved and the risk of the package collapsing is reduced.

An additional advantage is that a person responsible for loading a distributor with sheet products more easily can handle the package with only one hand thus reducing the time needed to load the distributor. When a single hand is used to load the package, a part of the package, such as an extreme part thereof can be held by the person. The bonding material applied on at least two opposite sides of the pack ensures that the integrity of the pack remains intact. The adhesive bond between the bonding material and the sheet product is preferably not permanent, that is, the sheet product can be separated from the pack by breaking the adhesive bond, and without tearing the separated sheet product.

The separation of the extreme sheet products from the package can be accompanied by breaking the unions of the material of joining on at least two opposing side surfaces by exerting a pushing force of any of the end sheet products.

A pushing force exerted on an end sheet results in the breaking of the joints of the bonding material thus allowing the removal of the end sheet. By having the bonding material applied to the side surfaces, the risk of tearing the end sheet while it is removed is greatly reduced compared to having a bonding agent applied to the contact surfaces of the sheets, as described by the art. previous.

At least two opposite side surfaces of the package are formed by the edge surfaces of the sheet products. The bonding material may be applied and attached to at least the edge surfaces of each end sheet of the pack. The bonding material can directly or indirectly provide a force transfer connection between at least the end sheets, so as to prevent the pack from collapsing.

By having at least the end blades connected by means of a force transfer connection in the form of for example, the binding material the package is prevented from collapsing. The force transfer connection means, for example, the ability to transfer stress load between the top and bottom sheet product of the stack, so that the package can be lifted and handled by holding the upper portions of the glued side surfaces. This results in a person handling the package not lifting the package for a long time from below to avoid collapse or alteration of the battery.

An indirect force transfer connection is provided between the end sheets by means of the bonding material if the bonding material transfers the tension load together with another member, which in this way also transfers stress load. The other member can, for example, be the carrier sheet of a pressure sensitive tape that is adhesively attached to the stack. The tensile load is transferred from one end sheet through the bonding material to the carrier layer, and subsequently, to the other end sheet through the bonding material again. Here, the other member functions as a retention element, which retains the integrity of the stack. The bonding material indirectly provides the force transfer connection because the force is also transferred by the carrier layer of the tape. Many other designs can result in an indirect force transfer connection, such as when the joining material is reinforced, for example, with a reinforcing element, which is arranged and is capable of transferring the stress load. Even another type of indirect force transfer connection is provided when all the contiguous sheet products of the stack are joined together. yes due to the force that can then be transferred between the extreme sheet products through each sheet product of the stack. After an indirect force transfer connection, the requirement for structural rigidity of the bonding material itself is reduced in favor of the bonding capacity at least in the end sheets and the retaining element.

A direct force transfer connection is provided between the end sheets by means of the joining material if the bonding material itself transfers the stress load between the top and bottom sheet product of the stack, and thus form by itself the retention element. This, for example, can be achieved by forming the joining material of a relatively thick chain of hot melt glue which is applied continuously over the entire top of the package. A direct force transfer connection is then provided by means of the bonding material, ie, hot melt glue, which joins at least the end sheets and is capable of transferring the surge of stress load between them. . Other types of direct force transfer connection are provided after the use of for example, thermo-adhesive films such as bonding material.

The height of the stack when measured from the top surface of the stack towards the bottom of the The stack can be at least 15 cm, preferably at least 20 cm. Without a container package, a stack can be limited in height while still being able to be handled as an integral unit using only one hand. For the invention to be more effective, a larger pula may be desired. Battery compression may arise during the manufacture or transport of the battery. The height of the package can be varied depending on the type of sheet product used and may also depend on the type of distributor of the package for which it is intended.

The lateral surfaces of each sheet product disposed between the end sheet products are preferably free of the bonding material. A small amount of the bonding material, for example, an adhesive, can nevertheless penetrate a certain distance in the sheet products depending mainly on the viscosity of the adhesive and the absorption rate of the sheet material.

A direct or indirect force transfer connection can be provided between at least the end sheets by means of one or more structural retainers which join at least the end sheets and extend along at least two opposite side surfaces of the stack. .

A structural retainer can advantageously work as reinforcement in cases where the strength transfer capacity of the bonding material alone is not enough to ensure the integrity of the package, or in cases where a structural retainer is considered necessary for other reasons. The structural retainer can result in improved stability and handling of the package.

Each sheet product of the package comprises two side surfaces, and one or more structural retainers may also be attached at a certain distance on an outer side surface of the end sheets to improve the attachment of the structural retainers to the end sheets.

The improved union of the structural retainers to the end sheets results in improved stability and robustness of the package. One or more structural retainers may be formed by the bonding material itself, which may be applied over the total height of each of at least two opposite side surfaces by means of at least one continuous band of bonding material or segmented multiple bands. of bonding material.

When multiple segmented structural retainers are used with the end segments thereof joined to the end sheets of the stack, the segments must overlap in the direction of the stack height. This means that one end of a structural retainer extends beyond one end of another structural retainer in the height direction, so that all the sheet products are covered by at least one structural retainer with the purpose of providing the required integrity of the stack.

By having separate structural retainers of the joining material that can provide more flexibility with respect to the desired characteristics of the package such as stability, flexibility, elasticity, etc. Having separate structural retainers also allows increased freedom in the type of bonding material used.

One or more structural retainers can be joined to the end sheets by means of the joining material.

One or more structural retainers may be formed by tape, net, cloth, web, or gasket, and made of paper, cardboard, polymer, or plastic material.

One or more structural retainers can be formed by either a continuous structural retainer that attaches to the end sheets, or multiple segmented structural retainers that extend over the total height of the package, and with the end segments thereof that join the bundles. extreme sheets of the pile.

The package may comprise a single structural retainer extending over the total height of each of at least two opposite side surfaces. The width of a bonding surface of the structural retainer is preferably less than half the width of the associated side of the sheet product, and more preferably less than a quarter of the width of the associated side of the sheet product, facilitating the improved separation of the extreme sheet products from the package.

A reinforcing element may be attached or integrated into the band or bands of the joining material to increase the rigidity and integrity of the package. The reinforcement element can be formed by tape, net, cloth, band, or gasket, and made of paper, cardboard, polymer, or plastic material.

At least 50% of all the sheet products in the package can be attached to the package by means of the joining material, preferably at least 75% of all the sheet products in the package, and more preferably at least 90% of all the products of the package sheet.

A joint may be provided by the joining material between each adjacent pair of sheet products on at least two opposite side surfaces of the stack.

The joining material preferably provides a non-permanent bond between the sheet products and the retaining element and / or between the adjacent sheet products. A non-permanent joint is allowed for easier separation of the sheets in the stack.

The invention further relates to a method for manufacturing a package of folded sheet products, in particular hand wipes, made of tissue or non-woven paper. The method comprises the steps: - provide a package comprising a stack of sheet products, whose stack has a top surface, a bottom surface, and four side surfaces connecting the top and bottom surfaces; - applying the bonding material on at least two opposite side surfaces of the stack and joining the joining material to at least two of the sheet products to retain the integrity of the package while allowing a separation of the end sheet products from the package .

BRIEF DESCRIPTION OF THE FIGURES The present invention will now be described in detail with reference to the figures, wherein: Figure 1 schematically shows a package of folded sheet products according to the invention; Figure 2 schematically shows a package of folded sheet products according to a first aspect of the invention; Figure 3 schematically shows a package of folded sheet products according to a second aspect of the invention; Figure 4 schematically shows a package of folded sheet products according to a third aspect of the invention; Figure 5 schematically shows a package of sheet products folded according to a fourth aspect of the invention; DETAILED DESCRIPTION In Figures 1 to 5, similar characteristics have the same reference numbers.

Figure 1 shows schematically a pack 1 according to the invention. The package comprises a stack 2 of folded sheet products made for example of tissue paper or nonwoven. The stack 2 of folded sheet products has an upper surface 3, a lower surface 4, a first long side surface 5, a second long side surface 6 opposite the first long side surface 5, a first short side surface 7 and a second short side surface 8 opposite the first short side surface 7. The stack 2 of the sheet products comprises a first end sheet product 9 located at a first end 10 of the stack 2 of the sheet products and a second end sheet product 11 located at a second end 12 of the stack 2 of the leaf products. In Figure 1, the first end sheet product 9 is located at the bottom of the stack 2 of the sheet products and the second end sheet product 11 is located at the top of the stack 2 of the sheet products . Of course, this being the other way depending on whether the stack 2 of the sheet products is placed in a distributor with a distribution opening located in a top of the distributor.

Each sheet product comprises a first edge surface 13 and a second edge surface 14. In Figure 1, this is only illustrated for the end sheet products 9, 11. However, this applies to all sheet products in the stack 2. In FIG. 1, the edge surfaces 13, 14 are located on the short sides of the sheet products. Alternatively, the edge surfaces 13, 14 can be located on the long sides of the sheet products. Each sheet product also comprises a first external lateral surface 15 and a second external lateral surface 16, whose external lateral surfaces 15, 16 form the main surfaces of each sheet product. The stack 2 extends in the direction of the height, hereinafter denoted as the z-direction. Each sheet product is then arranged in a plane defined by a direction x and an address and both are perpendicular to the z direction. the directions x, y, and z are axes in a three-dimensional system of Cartesian coordinates. In Figure 1, the first and second side surfaces 7, 8 extend in a plane defined by the direction x and the z direction.

The sheet products in the stack 2 can be interfolded in any suitable manner, for example, by C-fold, W-fold or Z-fold. The sheet products in the stack 2 can also be placed on the part between yes without interrogating.

The joining material 17 is applied to the first short side surface 7 of the stack and the second short opposite side surface 8 of the stack. The joining material 17 can cover only a part of the short side surfaces 7, 8 or can completely cover the short side surfaces 7, 8. This is described in more detail below. In Figure 1, the joining material 17 additionally covers part of the upper surface 3 and similarly part of the lower surface 4 of the stack 2. This is a simple example of how to apply the bonding material 17. The joining material 17 does not have to extend towards the upper surface 3 or the lower surface 4 as long as the edge surfaces 13, 14 of the first end sheet product 9 and the second end sheet product 11 are covered and joined to the surface. union material 17.

The location of the bonding material 17 on the short side surfaces 7, 8 in Figure 1 is simply understood as an illustration. Of course, it is possible to have the bonding material 17 applied on the first long side surface 5 and the second long opposite side surface 6. The first and second edge surfaces 13, 14 of the sheet products then correspond to the long sides of the sheet product.

The bonding material can of course alternatively provided on three or four side surfaces of the stack to even increase the integrity thereof.

Figure 2 schematically shows a package 1 of folded sheet products 5 according to the invention. Here, the bonding material 17 is shown to extend through the entire first short side surface 7 and the second short side surface 8 of the stack 2 of the sheet products in the z direction of the package 1. The bonding material 17 covers and joins at least one edge surface 13 of the first end sheet product 9 and one edge surface 13 of the second end sheet product 11. The joining material 17 ensures that a force transfer connection is achieved between at least the first end sheet product 9 and the second end sheet product 11, so that the stack 2 can retain its integrity. The force transfer connection thus prevents the first and second end sheet products 9, 11 from separating in the z direction, unless a separating force exceeds either the bond strength of the bonding material 17 or the tensile strength of the bonding material itself exerted to at least one of the end sheet products 9, 11. The binding material 17 at least has to adhere to the first end sheet product 9 and the second end sheet product 11 in order to achieve the function of the invention. Depending on the resistance In the desired embodiment of the force transfer connection, the joint material 17 can be arranged to adhere to the additional sheet products. The joining material 17 is preferably arranged to adhere to all the sheet products of the stack 2, but binding to a certain amount of sheet products may be lost due to for example, insufficient alignment or placement of the sheets of the stack during the application of the bonding material, and / or joints that have failed after their manufacture.

The hot melt adhesive or the like can for example be used as the joining material 17. The bonding material 17 can be applied to cover the entire width of the short side surface 7 in a direction x resulting in increased pile integrity, or applied as a continuous band covering only a part of the short side surface 7 in the x direction which results in the simplified resistance of the sheet products of the stack 2. The joining material 17 can additionally be attached to a part of the first outer side surface 15 and / or the second external side surface 16 of the products 9, 11 of Extreme blade for increased stability and bond strength. A reinforcing element (not shown) can also be attached to or embedded in the joining material 17 for increased rigidity and integrity of the package. The reinforcement element can be formed by tape, net, cloth, band, or board, and are made of paper, cardboard, polymer, or plastic material.

Figure 3 schematically shows a package 1 of sheet products folded according to another aspect of the invention. If for example, the force transfer connection provided by the joining material 17 by itself as shown in Figure 2 is considered to be not strong enough, ie if the package 1 is still unable to retain its integrity in To a sufficient degree, one or more structural retainers 18 may be used. One or more structural retainers 18 can be formed by tape, web, web, web, or gasket, and are made of paper, cardboard, polymer, or plastic material and provide increased strength transfer capability. The structural retainer 18 may have the bonding material 17 applied thereto prior to clamping the combined structural retainers 18 and the bonding material 17 to the side surfaces 7, 8 of the stack. Alternatively, the bonding material 17 can be applied to the surfaces 78 of the stack 2 before placing the structural retainer 18 on top of the joining material 17. As shown in Figure 3, the joining material 17 does not necessarily have to cover all the sheet products in the stack 2 because the structural retainer 18 alone can comply with the force transfer connection between the sheets 9. 11 ends of the stack 2. Consequently, in the same way as described together with the 2, the joining material 17 has at least one to adhere to the first end sheet product 9, the second end sheet product 11 and the structural retainer 18 in order to achieve the function of the invention. According to a preferred aspect of the invention, the structural bonding and retaining material 17 extends the same, and both preferably cover and adhere to each sheet product of the stack 2. The structural retainer 18 and consequently the material 17 may cover a portion of the first outer side surface 15 and / or the second outer side surface 16 of the end sheet products 9, 11 for increased bond strength and stability.

As mentioned previously, instead of applying the first binding material 17 to the stack 2 of the sheet products, a structural retainer 18 comprising the bonding material 17 directly to the stack 2 of the sheet products can be applied. In this case, the bonding material 17 is composed, for example, of the adhesive of a tape, or glue applied to the structural retainer forming a carrier layer, such as a paper web. The tape or paper web is then applied to the stack 2 and joined thereto by means of the bonding material 17. In this case, the first binding material 17 is intended to secure the structural retainer 18 to the stack 2 of sheet products and secondly to function as a force transfer connection, and it is intended that the structural retainer 18 function as the main force transfer connection between the end sheets 9, 11 of the stack 2.

Figure 4 shows schematically the application of more than one band of the bonding material 17 or more of a structural retainer 18. In Figure 4, four strips of the joining material 17 or four structural retainers 18 are used, which collectively cover the total height of the short side surfaces 7, 8 in the z direction of the stack 2 of the sheet products. As can be seen from Figure 4, each of the bands of the bonding material 17 or structural retainers 18 overlap each other at least in the band of structural bonding material 17 which means that a connection is provided. of force transfer through the webs and the sheet products in the areas that are superposed in the direction of the height, that is to say in a direction perpendicular to the plane of the individual sheets. The use of four bands of bonding material 17 or four structural retainers 18 is illustrative only as a possible number of bands of bonding material 17 or structural retainers 18 that can be used. Two or more, in the x-direction, continuously moves the bands of bonding material 17 or structural retainers 18 which can alternatively be applied to each of the first and second short side surfaces 7, 8 to ensure the integrity of the pack. East Alternative design is advantageous in particular when the width of the stack 2 in the x direction is much larger than the width of the web of the joining material 17 or structural retainers 18 in the x direction, so that the substantially initial rectangular shape of the package 1 is also maintained after a certain level of compression of the stack 2 during manufacture. This design is particularly advantageous when the continuous bands of bonding material 17 or structural retainers 18 are applied to the first and second long side surfaces 5, 6 of the pack 1.

Figure 5 schematically shows a pack 1 according to another aspect of the invention. In Figure 5, the bonding material 17 is in the form of an adhesive with a relatively low viscosity which can be applied, for example, by spraying, laminating, brushing, or the like. In addition to forming a relatively thin coating layer on the lateral surfaces 7, 8, the joining material 17 in this aspect can penetrate a distance into each sheet product thereby joining the sheet products together not only by means of the material 17 Union on surfaces 78 short sides of the stack 2 but also when joining at least a part of a first external lateral surface 15 of a sheet product to a second external lateral surface 16 of a contiguous sheet product. The direct transfer force capability of the bonding material 17 between the sheets 9, 11 The ends of the stack 2 according to this aspect of the invention can be low or completely lost, but since the joining material 17 instead of joining each adjacent sheet product, a force transfer connection is provided by each sheet the stack inside the end sheets 9, 11, together with each joint between each of the adjacent sheets. This aspect of the invention can be combined with the structural retainers 18 and the method of applying multiple structural retainers 18 or bands of bonding material 17 as described in conjunction with Figure 4, for the purpose of increasing the stability and integrity of the package.

The term "attached" or "joining" means that the binding material is arranged to bond at least two of the sheet products in an adhesive manner. The bound sheet products do not have to be adjacent.

The expression retaining the integrity of the package during handling means, for example, the ability of the package to remain intact during normal handling, transport, storage, reloading and potential resistance of the distributor by a user. Leaf products are primarily intended to dry hands after washing or for cleaning purposes. Other suitable uses may be possible.

The bonding material can be an adhesive, a pressure sensitive adhesive, a hot melt adhesive, an organic solvent adhesive, a plastisol, an adhesive in water-based solution, a water-based dispersion adhesive, or a chemically-cured adhesive. The bonding material is preferably applied as a film or atomized to the stack.

The reference signs mentioned in the claims should not be regarded as limiting the degree of the subject matter protected by the claims, and their sole function is to make claims easier to understand.

As will be understood, the invention is capable of modification in various obvious aspects, all without departing from the scope of the appended claims. Therefore, the figures and the description thereof should be considered as illustrative in nature, and not restrictive.

Claims

1. A package of folded sheet products, in particular hand towels, made of tissue or non-woven paper, the package comprises a stack of sheet products, the stack of which has a top surface, a bottom surface, and four side surfaces connecting the upper and lower surfaces, wherein a joining material is applied to at least two opposite surfaces of the stack and joined to at least two of the sheet products to retain the integrity of the package during the handling thereof, while allowing the separation of the end sheet products from the package, wherein at least two opposite side surfaces are formed by edge surfaces of the sheet products, the bonding material is applied and attached at least to the edge surfaces of each end sheet of the package, wherein the bonding material directly or indirectly provides a force transfer connection between at least the end sheets, so as to prevent the pack It is then brought down, characterized in that the force transfer connection between at least the end sheets is carried out by means of applying one or more combined structural retainers and the joining material to the side surfaces of the stack, wherein one or more structural retainers are attached at least to the end sheets and extend along at least two opposite side surfaces of the stack, and wherein one or more Structural retainers are formed by tape, net, cloth, band, or board, and are made of paper, cardboard or plastic material.

2. The package according to claim 1, characterized in that the separation of the end sheet products from the package is carried out by breaking the joints of the bonding material on at least two opposite side surfaces by exerting a pushing force of any of the extreme sheet products.

3. The package according to claim 1, characterized in that each sheet product comprises two external lateral surfaces, and in which one or more structural retainers also join at a certain distance on an external lateral surface of the end sheets to improve the bonding of the structural retainers to the extreme sheets.

4. The package according to claim 1, or 3, characterized in that one or more structural retainers are joined to the end sheets by means of the joining material.

5. The package according to claim 1, 3 or 4, characterized in that one or more structural retainers are formed by either a continuous structural retainer attached to the end sheets, or multiple segmented structural retainers that extend together over the total height of the package, and with the end segments thereof attached to the end sheets.

6. The package according to any of claims 1 to 5, characterized in that a single structural retainer extends over the total height of each of at least two opposite lateral surfaces, and in that the width of a joining surface of the structural retainer is less than half the width of the associated side of the sheet product, and preferably less than a quarter of the width of the associated side of the sheet product. Facilitating the improved separation of extreme sheet products.

7. The package according to any of the previous claims, characterized in that at least 50% of all the sheet products of the package are attached to the package by means of the binding material, preferably at least 75% of all the sheet products of the package and more preferably at least 90% of all the sheet products in the package.

8. The package according to any of the preceding claims, characterized in that a connection is provided by the joining material between each of the adjacent sheet products on at least two opposite side surfaces of the stack.

9. The package according to any of the previous claims, characterized in that the bonding material provides a non-permanent bond between the products of sheet and retention element and / or between adjacent sheet products.

10. A method for manufacturing a package of folded sheet products, in particular hand wipes, made of tissue or nonwoven paper, characterized by the steps of: - providing a package comprising a stack of sheet products, the top of which has a top surface, a bottom surface, and four side surfaces connecting the top and bottom surfaces, wherein at least two opposite side surfaces are formed by edge surfaces of the leaf products; - applying one or more combined structural retainers and bonding material to at least two opposite side surfaces of the stack and attaching this combined structural retainer and bonding material to at least the edge surfaces of each end sheet of the package to retain integrity of the package while allowing the separation of the end sheet products from the package, whereby the bonding material together with the structural retainer provides a force transfer connection between at least the end sheets, so as to prevent the package comes down, where one or more retainers, structural are formed by tape, net, cloth, band or board, and are made of paper, cardboard or plastic material.