BE1029134A1 - Resealable lid for a hollow object and method to make the same - Google Patents

Abstract

Resealable lid (100) for a hollow object (200), the lid comprising a base layer (BL), a carrier layer (DL) and an adhesive layer (LL). The base layer has a first base layer cut line (B1). The carrier layer has a first carrier layer cut line (D1) at a first distance (d1) from the first base layer cut line (B1) to provide a first adhesive zone (k1) formed to adhere the lid to the hollow object (200). The base layer has a second base layer cut line (B2) at a second distance (d2) from the first support layer cut line (D1) to form a closure member (SL); The support layer has a second support layer cut line (D2) at a third distance (d3) from the second base layer cut line (B2) to provide a re-adhesion zone (k2) between the second support layer cut line (D2) and the second base layer cut line (B2).

Description

Reclosable lid for a hollow object and method of making the same The invention relates to a reclosable lid, wherein the lid is adapted to close a hollow object, such as for instance a packaging tray, such that a user can open and close the lid again.

In the packaging industry there are several types of lids that have been developed to at least partially close a hollow object, including for example "a receptacle" or "a packaging tray", and to provide it with an opening whereby the opening can be opened and closed.

Various designs have been made to make the opening resealable.

A first type of lid that is reclosable and can be secured to a package is described in EP0447329. The perimeter of that lid is mechanically snapped onto a suitable rim of a container.

Although the design is often used, it is subject to several drawbacks.

The design is in fact difficult to produce from a production point of view, typically using thermoforming or casting techniques.

This design is also disadvantageous in terms of sustainability.

Not only is a lot of energy required to produce the lid, a relatively large amount of material is also required to manufacture the lid.

This is undesirable for environmental reasons, among other things.

Further, for producing such a lid for different hollow objects, different molds have to be produced and provided, which greatly reduces the flexibility and greatly increases the cost.

In addition, a custom matching rim is needed on the container so that the lid can click into place.

Another kind of lid is described in EP2243716, more specifically in the passage related to the embodiment shown in Figure 9. Thereby, a lid in the form of a flexible laminate is used to cover a container.

This laminate is secured to the container by means of heating, also known as a “heat seal” or “heat-sealing”.

This is a complex manufacturing step and requires high energy consumption to secure the laminate to the container, typically with a hot melt adhesive or hot melt foil.

Securing is complex because the heating must be selectively provided where the laminate is to be fixed to the tray.

The technique of heat sealing is less suitable for small runs because the equipment on the production line has to be adapted to the format of the laminate and/or container.

These techniques are also harmful to the environment due to the energy consumption required to provide the heating.

The object of the invention is to provide an alternative reclosable lid which is easy to apply to different types of hollow objects.

To this end, the invention provides a lid having the features as described in claim 1. More particularly, the invention provides a reclosable lid for a hollow object, the lid comprising: a base layer, wherein a back side of the base layer is provided with a carrier layer, and wherein an adhesive layer is present between the base layer and the carrier layer, and wherein the base layer has a first base layer cut line to form a peripheral edge of the lid; the support layer having a first support layer cut line located substantially within contours and a first distance from the first base layer cut line to provide a first adhesive zone when a support layer portion outside the first support layer cut line is removed; wherein the first adhesive zone is formed to adhere the lid to the hollow object; wherein the base layer has a second base layer cut line located substantially within the contours and a second distance from the first support layer cut line to form a closure member; wherein the support layer has a second support layer cut line located substantially within contours and a third distance from the second base layer cut line to provide a re-adhesion zone between the second support layer cut line and the second base layer cut line.

The invention is based on the insight that material for making labels and stickers can be used for making a reclosable lid through an ingenious provision and arrangement of cutting lines.

This makes the resealable lid not only easy to produce, but also easy to apply to various types of hollow objects, in particular both plastic packaging trays and trays made of paper and cardboard or any other material.

Using the first adhesive zone provided by the first base layer cutting line and the first carrier layer cutting line, the lid can be provided directly on a hollow object without using complex heating equipment.

In addition, the resealable lid is easy to manufacture from materials that are already available and in circulation in the label and sticker industry.

The regular label and/or sticker materials can be used to provide the base layer and the carrier layer.

After having been provided with the cutting lines as described herein, these can be transported as a 'sticker roll' to the packer who wants to use a resealable lid to provide a hollow object with a resealable lid.

Due to the smart provision of the cutting lines, the packer does not have to rely on complex heating temperatures and the packer can provide the resealable lids on hollow objects in a sustainable way, preferably sustainable packaging containers such as containers made of paper, cardboard, wood, biobased plastics such as polylactic acid (PLA) and/or trays based on bamboo fibres, vegetable starch, biopolymers, paper pulp, rice pulp.

The application of the lids can be performed by a packer with known labeling machines which are typically known to be flexible in use especially for different types and widths of labels. This provides an alternative reclosable lid that is easy to apply to various types of hollow objects.

Preferably, the first distance is discontinuous over at least a segment of the first carrier layer cut line, which segment has a segment length that is at least 20% of a total length of the first carrier layer cut line. This has the advantage that the cover can be fixed better on a hollow object. More specifically, the width of the first adhesive zone will periodically increase due to the first distance being discontinuous, so that the width of the first adhesive zone between the hollow object and the lid also periodically increases. This improves the adhesive force distribution, so that shear forces that may occur are better absorbed. At the same time, the carrier layer is fixed in an improved manner relative to the hollow object. The better fixation also ensures that the stackability of the hollow objects can be improved.

Preferably, the first carrier layer cut line at the location of the segment is non-linear. As a result, a better force distribution can be provided through the cover and/or the connection between cover and hollow object and the cover can be fixed properly on a hollow object. In this case, the carrier layer can also be properly secured with respect to the hollow object without having to provide an additional adhesive element between the carrier layer and the hollow object. Preferably, the segment follows a trajectory that exhibits a repetitive pattern. The repetitive character of the pattern provides production advantages and a balanced distribution of the first adhesive zone so that the lid can be fixed equally along the edges of the hollow object.

Preferably, the first carrier layer cut line extends along substantially the entire first base layer cut line. This is so that the first adhesive zone can extend along almost the entire base layer, so that an optimum connection between cover and hollow object can be provided.

Preferably, the second base layer cutting line is located substantially in edge zones of the lid. Thus, it is desirable that more than 40%, preferably more than 50% of the second base layer cut line is located in edge zones of the lid. The edge zones indicate the zones closer to the peripheral edges of the lid than the center of the lid.

This is so that a desired opening can be provided so that a user has easy access to a contents of the hollow object, such as for instance a strawberry.

Preferably, the second base layer cut line and/or the second carrier layer cut line is substantially C or U shaped. An opening is hereby provided between the legs so that the contents of the hollow object are available. Due to the C or U shape there is, between the ends of the legs of the C or U, a connection of the carrier layer and/or base layer to the part of the lid which is connected to the hollow object. This connection ensures that the closing member of the lid remains in the vicinity of the lid. In this way it is prevented that the closing member is lost during the functional use of the lid and/or the hollow object. The connection provides a hinge function of the closing member.

Preferably, the base layer is substantially manufactured from a first material and the carrier layer is substantially manufactured from a second material; and wherein the first material and the second material have substantially the same density and/or substantially the same melting temperature. Since both materials have substantially the same density and/or melting temperature, it is assumed that both materials belong to the same kind and/or type, for instance both materials from one of PET, PE, PP, PVC and the like. This ensures that the lid can be recycled more easily and/or more efficiently in a later recycling process. This benefits sustainability. Preferably, the first material has substantially the same color as the second material, also in favor of recyclability. Suitable materials will be discussed further in more detail. Preferably, the adhesive layer substantially contains a pressure-sensitive adhesive adhesive. The adhesive glue is mainly composed of pressure-sensitive adhesive, which is a kind of non-reactive adhesive that forms a bond when pressure is applied to adhere the adhesive to a surface.

Typically, no solvent, water or heat is required to activate the adhesive. As a result, the lid can simply be fixed to the hollow object and without the need for lengthy curing steps or heating steps. Suitable pressure sensitive adhesives are those typically used in the label and sticker industry. Examples of suitable pressure sensitive adhesives are discussed further in more detail.

In one embodiment, the cover is provided with one or more ventilation holes located substantially within the contours of the second carrier layer cut line. This allows the contents of the hollow object to be ventilated.

In one embodiment, the closing member is further provided with an opening tab which is surrounded by the overlap of the first base layer cutting line and the second base layer cutting line at the location of the opening tab. Preferably, the opening tab is provided with a carrier layer portion formed by a third carrier layer cut line that is at least partially outside the contours of the first carrier layer cut line. This has the advantage that a user of the opening tab comes into contact with the adhesive layer less, which contact may be experienced by a user as unpleasant. Furthermore, the invention relates to the hollow article comprising at least one reclosable lid as described herein. Because the hollow object has this label, the object as a whole is easier to recycle. Especially when durable materials are used for the hollow object. Such materials will be discussed further in more detail. Preferably, the reclosable cover is fixed on the hollow object via the first adhesive zone. This has the advantage that the need for and/or the use of other adhesive layers is reduced and/or avoided.

The invention further relates to a method for manufacturing a reclosable lid, comprising the steps of: - providing a laminate with a base layer and a carrier layer on a back side of the base layer and providing an adhesive layer between the base layer and the carrier layer ; - providing a first base layer cut line on the base layer to form a peripheral edge of the lid; - providing a first carrier layer cut line on the carrier layer, substantially within the contours and at a first distance from the first base layer cut line, to provide a first adhesive zone; - providing a second base layer cut line on the base layer, substantially within the contours and a second distance from the first support layer cut line, to form a closure member; - providing a second carrier layer cut line to the carrier layer, substantially within contours and a third distance from the second base layer cut line, to provide a re-adhesion zone between the second carrier layer cut line and the second base layer cut line. In this way, the method provides for manufacturing a reclosable lid in a production-technically simple manner, in particular without making use of complex production techniques such as, for example, heating techniques. The advantages and effects described above with reference to the reclosable lid also apply at least largely to the method. In addition, in this way a relatively large number of reclosable lids can be provided in a short period of time. Preferably, the method further comprises - placing the reclosable lid on a hollow object by removing a first carrier layer portion outside the first carrier layer cut line.

The invention will now be described in more detail with reference to the accompanying drawings shown in the figures, in which some but not all embodiments of the invention are shown. The invention may be embodied in many different forms and should not be construed as being limited only to the embodiments described herein. Figure 1 shows a schematic representation of a top view of an embodiment of a reclosable lid mounted on top of a hollow object. Figure 2A shows the section through section line IV shown in Figure 1. Figure 2B shows the section through section line III shown in Figure 1. Figure 3 shows a detailed explanation of the lid shown in Figure 2B. Figure 4 shows a schematic representation of a cross-section of an explanation of a reclosable lid and hollow article.

Figure 5 shows a schematic representation of a top view of an embodiment of a reclosable lid mounted on top of a hollow object with an opening tab. Figure 6 shows the section through the section line VI shown in Figure 5.

Figure 1 shows a top view of one of the possible embodiments of a reclosable lid according to the invention. This reclosable lid (100) is mounted on top of a hollow object 200 such as, for example, a packaging tray. The top surface (Ad1) of the packaging tray is shown by the dotted lines (210) and (220) which are respectively representative of the outer edge and inner edge of the top surface (Ad2) of the packaging tray (200). The reclosable lid (100) has a base layer with a first base layer cut line (B1) and a second base layer cut line (B2), these are shown in solid line. Further, the reclosable lid (100) has a carrier layer (DL) having a first carrier layer cut line (D1) and a second carrier layer cut line D2. The base and carrier layer intersecting line (B2) and (D2) create a locking member SL. The second carrier layer cut line is located substantially along the edge regions of the lid (100). In Figure 1, the closing member (SL) is partially opened along the upper right corner. An opening (150) is thus formed so that a substance (250), for example a strawberry, located in the hollow object is made accessible. Those skilled in the art understand that many kinds of substances can be packed in the hollow object.

The cut lines are mainly located from the peripheral edge of the lid inwards, largely in the order: - first base layer cut line; - first carrier layer cutting line; - second base layer cutting line; and - second carrier layer cutting line.

In other words, the first carrier layer cut line will be substantially within the contours of the first base layer cut line. Also, the second base cut line will be substantially within the contours of the first carrier layer cut line. Furthermore, the second carrier layer cut line will be substantially within the contours of the second base layer cut line. The term substantially within the contours refers to at least 50% of the cut line, more preferably at least 70% of the cut line, most preferably at least 90% of the cut line. It will be clear here that the ratio and relative position of the cutting lines can deviate, for example with the closing tab described below, without negatively influencing the functionality and overall operation.

A first adhesive zone k1 is provided in that the first base layer cut line (B1) is spaced from the first carrier layer cut line (DI). This allows to remove a portion of the carrier layer which is outside the contours of the first carrier layer cut line D1 to make the base layer with adhesive layer directly accessible and thus form the first adhesive zone. The cover can be directly connected to the hollow object via the first adhesive zone (k1). Thus, the lid (100) can adhere to the top surface (Ad1) of the hollow object. The first support layer cut line (D1) extends along the entire length of base layer cut line (B2). A re-adhesion zone k2 is provided in that the second base layer cut line B2 is spaced (d3) from the second support layer cut line (D2). The closure member (SL) can reclose the opening because a portion of the adhesive layer (LL) is present in the re-adhesion zone and substantially at the edges of the closure member. The part of the adhesive layer at the edges of the closure member (SL) can re-adhere to the re-adhesive surface (Ad2) of the base layer (BL), thereby imparting a resealable property to the lid.

The locking member (SL) is shown in Figure 1 in a U-shaped shape. Also, the second carrier layer cutting line (D2) and the second base layer cutting line B2 have a U-shaped shape. It is also possible that only the second carrier layer cutting line (D2) or only the second base layer cutting line (B2) has a U or C shape.

In Figure 1 it can be seen that the distance (d3) is discontinuous over a segment of the first carrier layer intersecting line (D1) wherein the segment length is more than 20% of the total length of the first carrier layer intersecting line (D1). As already mentioned, this has the advantage that the lid can be fixed better and that the stackability of the hollow objects can thus be improved.

For example, when stacking a second hollow object on a first hollow object with a lid, wherein the hollow objects typically have the same dimensions, the bottom of the upper second hollow object may rest on the lid of the first hollow object.

Certainly in the case when a flexible cover is used, it is important to provide a good connection or adhesion between the cover and the hollow object, since the cover can be subjected to forces because the weight of the upper hollow object rests on the cover.

In cases of a flexible lid, these forces may be distributed and transferred to the connection or adhesion between lid and hollow object and/or to the fixation of the carrier layer with respect to the hollow object.

It is thereby advantageous that the first distance (d1) is discontinuous over at least the segment with a segment length of at least 20% of the total length of the first carrier layer cutting line, preferably at least 30%, even more preferably at least 40% and most preferably at least 50%. This also ensures that the carrier layer is fixed better with respect to the hollow object.

For production-technical reasons, it is desirable not to have to provide an extra glue layer or other additional adhesive element between the carrier layer and the hollow object.

Nevertheless, it is desirable that the carrier layer is fixed relative to the hollow object.

In order to provide for this, the first support layer cutting line at the segment is non-linear, as shown in Figure 1. The first adhesive zone k1 allows to connect the base layer directly to the hollow object.

Because the base layer is directly connected to the hollow object, and the carrier layer is connected to the base layer, the carrier layer is also indirectly connected to the hollow object.

The discontinuous distance d1 improves this indirect connection between the hollow object and the carrier layer.

Figure 1 shows that the carrier layer cut line (D1) at opposite edges of the lid follows a non-linear trajectory (T) which exhibits a wavy character.

The non-linear trajectory has the advantage that the lid can be fixed better on a hollow object.

This is illustrated, for example, in Figure 2A.

Figure 2A shows the cross-section through section line IV shown in Figure 1. Due to the non-linear first carrier layer cutting line (D1), the carrier layer is indirectly secured to an upper surface (Ad) of the package (200) without having to provide an additional adhesive element therebetween.

Figure 2B shows the section through section line III shown in Figure 1. It can be seen here that the lid can be directly connected to the package via the adhesive zone (k1). This has production technical and sustainable advantages.

With a minimum number of layers, in particular a base layer (BL), an adhesive layer (LL) and a carrier layer (DL), the lid can be provided on the hollow object.

As a result, no additional adhesive elements are required at the bottom of the carrier layer to fix the lid to the hollow object.

Figure 3 shows a detailed explanation of the cover shown in Figure 1. The carrier layer part (DD) is removed before being fixed to a hollow object so that the cover (100) can be fixed to a hollow via the first adhesive zone (k1) object.

The cut lines may initially cut substantially only partially through the respective layer to form a notch.

Secondly, the cut lines may cut substantially through the entire thickness of the respective layer to form an entire cross-section.

As well as in a third instance, a combination of notch and an entire cross-section is possible.

If a notch is used, a local weakening of the respective layer, i.e. the base layer and/or the carrier layer and also the adhesive layer, if this is present at the cutting line, is ensured.

The notch on an edge of the closing member, being the second base layer cut line and at the edge zone of the closing member, being the second carrier layer cutting line, can thus be easily torn by the local weakening so that the cover can be opened through the cover at least partially along the local area. tear open weakening.

When the adhesive layer (LL) is present at one of the cut lines as described herein, this layer will also be cut or cut in the same or similar manner as the respective cut line present.

The cutting lines can be provided using various cutting techniques such as mechanical punching, using a knife or using laser cutting methods.

The cut lines can be provided wholly or partly through the thickness of the base layer and the carrier layer, respectively.

With a partial provision of the cut line, a notch is formed which weakens the base layer and/or carrier layer at the location of the notch.

This weakening allows the notch to easily separate the adjacent portions of the layer by tearing the layer along the notch.

Also, the combination of a full or partial cross-section along the length of the cutting line can be provided, such as, for example, a combination in which the full cross-section and the partial cross-section alternate sequentially.

A partial cross-section, for instance at the location of the second base layer cut line (B2) can thus indicate that the lid has already been opened as it will then be torn.

Such an indication is also called a tamper or tampering element.

Tampering elements are often desirable in packages to visually confirm to a consumer or user that the package is being opened for the first time.

The first base layer cutting line (B1) may also be formed at least partly by the side edges of a supply base layer coming from e.g. supply roll or supply roll providing a film, e.g. a PET film to provide the base layer. Also the first carrier layer cutting line (D1) may be formed by the side edges of a supply carrier layer coming from, for example, a supply roll or supply roll providing a film, for example a PET film to provide the carrier layer. In this way, it is only necessary to provide the other cutting lines, i.e. the second base layer cutting line (B2) and the second carrier layer cutting line (D2) and optionally the third carrier layer cutting line (D3), with the known cutting line provisioning techniques.

The base layer (BL) may contain one or more flexible layers with, for example, a polymer film, paper, metal foil, and the like. Typical polymer films are films based on a synthetic plastic, such as Polyethylene (PE), LLD, LD and HD, Polypropylene (PP), Polycarbonate (PC), Polyvinyl chloride (PVC), Polyamides (PA), Polystyrene (PS), Polyethylene terephthalate ( CAP). In other embodiments, polymer films based on bio-based polymers and/or biodegradable polymers can also be used. Preferably, the base layer comprises a layer of polyester such as polyethylene terephthalate (PET). This material can be easily printed with inks to provide, for example, data on the contents of the hollow object. In another embodiment, the base layer is transparent and printed on the surface facing the support layer.

The support layer (DL) may contain one or more flexible layers with, for example, a polymer film, paper, metal foil, and the like. Typical materials to form the base layer include paper, plastic, or a combination thereof. An example base layer is a synthetic layer based on PP, PE, Polyester or a combination thereof. Typically used paper types are for example: Paper Coated, Paper Un-coated, Metallized Paper, Thermo Top Paper, Thermo Eco Paper, Opaque Paper, Wet Strength Paper. It must be said that other types of paper are also possible. Preferably, the base layer comprises a polymer film as described above. Compared to paper, a synthetic base layer has the advantage that the lid is made suitable for a wider field of application, for example to also be used in humid conditions.

In connection with the base layer and the carrier layer, the base layer (BL) is preferably manufactured substantially from a first material (m1) and the carrier layer (DL) is substantially manufactured from a second material (m2). The first material (ml) and the second material (m2) preferably have substantially the same density and/or substantially the same melting temperature. Preferably, the density of the first material differs from the density of the second material by a maximum of 2%, preferably a maximum of 1%, most preferably a maximum of 0.5%. Preferably, the melting temperature of the first material differs from the melting temperature of the second material by a maximum of 2%, preferably a maximum of 1%, most preferably a maximum of 0.5%. For example, in the event that synthetic plastics are used for the first material and the second material, and it is desirable to be able to recycle these plastics, it is advantageous that the plastic is manufactured from the same polymer type for both materials. For example, a base layer and a carrier layer which are mainly made of PET, mainly means here for more than 50% of the total layer.

When the base layer (BL) is manufactured substantially from the same type of material as from which the carrier layer (DL) is manufactured, technical recycling advantages are envisaged. In a recycling process it is advantageous if the input materials contain the same types of materials in large sizes. As a result, one will have to rely less on separation processes. These aspects benefit the purity of the output materials in the recycling process. One or more sublayers may be provided on both the base layer and the support layer. For example, a barrier layer which forms a barrier against the passage of moisture and/or oxygen can be provided. In some applications, such as packaging moisture-sensitive products, it is important to provide a moisture barrier. The barrier layer may contain various barrier materials such as ethylene vinyl alcohol copolymer (EVOH), polyamide (PA) or polyolefin films such as polyethylene (PE), polypropylene (PP), oriented polypropylene and the like. Also, films with aluminum foil, an AlOx coating or SiOx coating and the like can be used. Another exemplary sub-layer is an tack-reducing coating that reduces the tack and/or affinity of the adhesive layer and does not remove it completely. In one embodiment, the tack-reducing coating is applied at least at the re-adhesion zone (k2). In addition, an ink layer with data can also be provided on the base layer. Before providing the base layer with the ink layer, the base layer may be subjected to various treatments such as, for example, a flame treatment or a corona treatment to make the surface more receptive to an ink layer. In addition or alternatively, a separate label can also be adhered to the base layer. This label typically shows data related to the contents of the hollow object. The adhesive layer (LL) may contain one or more types of adhesives. Preferably, an adhesive is chosen that can typically be used in the label and/or sticker industry. Such adhesives are chosen such that the adhesive force is appreciably lower towards the carrier layer than towards the base layer. Due to the lower adhesive strength on the carrier layer, the adhesive becomes re-adhesive to the carrier layer. The adhesive has also been chosen in such a way that a good bond with an external surface can be achieved. The skilled person understands that the intended application has an influence on the chosen adhesive.

Examples of adhesives with a re-adhesive character are pressure-sensitive adhesives such as adhesive glues or adhesive tapes. Biodegradable and bio-based adhesives can also be used and these also have environmental advantages. Examples include adhesives based on vegetable matter, starch, casein, dextrin, glucose, methylcellulose.

From a production point of view, it is advantageous if the adhesive layer is provided as a continuous adhesive layer with an adhesive of the same type. In this case, the adhesive layer can have a higher affinity with the base layer than with the carrier layer as shown in the figures. The degree of affinity can be adjusted by coating layers and/or material selection of the carrier layer and base layer. However, it is preferable to provide a higher affinity between the base layer and the adhesive layer.

Preferably, the adhesive layer comprises the same type of adhesive, which has technical advantages for production. Preferably a pressure sensitive adhesive is used. This is because pressure-sensitive adhesives can provide an adhesive force to the nearby components by simply pressing or pressing these components together, this does not require significant heating. During pressing, a plastic deformation of the adhesive layer occurs, so that a good initial adhesion is obtained. Examples of these are adhesives based on natural rubber, block copolymers (for example SBS), PIB or butyl rubber, acrylates, silicones and polyvinyl ethers. The glue layer is preferably applied as a continuous glue layer along the base layer on the side of the base layer which is directed towards the carrier layer, this side can also be understood as the underside of the base layer. For reasons of production, among other things, it is advantageous to provide a pressure-sensitive adhesive over substantially the entire underside of the base layer.

An example of a suitable adhesive layer is the S4700 adhesive adhesive. This adhesive is commercially available through AVERY DENNISON.

The hollow object (200) may be, for example, a packaging tray. Such a hollow object preferably has a bottom and upright walls on all edges of the bottom. The upright walls have an upper edge at the top. The top edge is preferably continuous, i.e. uninterrupted. Such a tray can be made from a variety of article materials, such as, for example, a plastic. In order to benefit sustainability, it is preferable to use sustainable materials for the hollow object, such as materials based on paper, cardboard and/or materials based on biodegradable and/or biodegradable polymers such as polylactic acid (PLA). and/or trays made of wood and/or based on bamboo fibres, vegetable starch, biopolymers, paper pulp, rice pulp, etc. The hollow object can be used to package a certain content or substance (230). For instance, a hollow object can be provided for packaging strawberries, cherry tomatoes, mushrooms, herbs, nuts, chewing gums and the like. Figure 4 shows a schematic cross-sectional view of an embodiment of a reclosable lid (100) adhered to a hollow object (200). The base layer (BL) of the cover (100) is directly connected to the hollow object (200) via the adhesive layer (LL). It is thereby not necessary to provide additional adhesive elements between the carrier layer (DL) and the hollow object (200). The hollow object is provided to package a substance (230). Some vent holes (180) through the closure member (SL) are shown. The vent holes may contact the contents (230) packed in the hollow article with an outer substance (231). In this way an air supply can be provided to the contents of the hollow package. The ventilation holes can be made by means of perforation techniques.

Figure 5 shows an embodiment of the invention having the same features as described above and showing the opening tab. The opening tab (OL) is formed in that the first base layer cutting line (BI) and the second base layer cutting line (BI) overlap locally. The opening tab (OL) is further provided with a carrier layer portion (700) which is surrounded by a third carrier layer cutting line (D3) which is outside the contour of the first carrier layer cutting line.

Figure 6 shows the section through the section line VI shown in Figure 5. The carrier layer portion (700) is surrounded by the third cut line (D3) and allows a user using the opening tab (OL) to open the lid (100). , does not come into direct contact with the adhesive layer (LL).

Based on the description above, those skilled in the art will appreciate that the invention can be practiced in different ways and on the basis of different principles. In addition, the invention is not limited to the embodiments described above. The embodiments described above, as well as the figures are merely illustrative and serve only to enhance the understanding of the invention. The invention will therefore not be limited to the embodiments described herein, but is defined in the claims.

Claims (17)

Conclusions A reclosable lid (100) for a hollow article (200), the lid comprising: a base layer (BL), wherein a back side (110) of the base layer is provided with a carrier layer (DL), and wherein between the base layer and the carrier layer has an adhesive layer (LL), and the base layer has a first base layer cut line (B1) to form a peripheral edge of the lid; wherein the carrier layer has a first carrier layer cut line (D1) located substantially within contours and at a first distance (d1) from the first base layer cut line (B1), to provide a first adhesive zone (k1) when a carrier layer portion (DD) is outside the first carrier layer cutting line has been removed; wherein the first adhesive zone (k1) is formed to adhere the lid to the hollow object (200); wherein the base layer has a second base layer cut line (B2) located substantially within the contours and at a second distance (d2) from the first support layer cut line (D1) to form a closure member (SL); wherein the support layer has a second support layer cut line (D2) located substantially within contours and at a third distance (d3) from the second base layer cut line (B2), to provide a re-adhesion zone (k2) between the second support layer cut line (D2) and the second base layer cutting line (B2). The reclosable lid according to claim 1, wherein the first distance (d1) is discontinuous over at least a segment of the first carrier layer cutting line (D1), which segment has a segment length which is at least 20% of a total length of the first carrier layer cutting line (D1 ). The reclosable lid according to the preceding claim, wherein the first carrier layer cut line (D1) at the location of the segment is non-linear. The reclosable lid according to claim 2 or 3, wherein the segment follows a trajectory (T) which exhibits a repetitive pattern. A reclosable lid according to any one of the preceding claims, wherein the first carrier layer cut line (D1) extends along substantially the entire first base layer cut line (B1). A reclosable lid according to any one of the preceding claims, wherein more than 40%, preferably more than 50% of the second base layer cut line (B2) is located in edge zones of the lid. A reclosable lid according to any one of the preceding claims, wherein the second base layer cut line (B2) and/or the second carrier layer cut line (D2) is substantially C or U-shaped; A reclosable lid according to any one of the preceding claims, wherein the base layer (BL) is substantially made of a first material (ml) and the carrier layer (DL) is substantially made of a second material (m2); and wherein the first material (m1) and the second material (m2) have substantially the same melting temperature and/or density. A reclosable lid according to any one of the preceding claims, wherein the adhesive layer (LL) comprises a pressure-sensitive adhesive adhesive. A reclosable lid according to any one of the preceding claims, wherein the lid is provided with one or more ventilation holes (180) located substantially within the contours of the second carrier layer cut line (D2). The reclosable lid according to the previous claim, wherein the ventilation holes extend through the base layer, the glue layer and the carrier layer. The reclosable lid according to any one of the preceding claims, wherein the closing member (SL) further comprises an opening tab (OL) formed by the first base layer cutting line (B1) and the second base layer cutting line at the opening tab (OL). (B2) overlap. The reclosable lid according to the preceding claim, wherein the opening tab (OL) comprises a carrier layer portion (700) surrounded by a third carrier layer cut line (D3) located at least partially outside the contours of the first carrier layer cut line (D1). . A hollow object comprising at least one reclosable lid according to claims 1-13. 15. Hollow object according to preceding claims 1 - 14, wherein the reclosable lid is fixed directly on an upper surface of the hollow object via the first adhesive zone. A method for manufacturing a reclosable lid (100), comprising the steps of: - providing a base layer (BL) and a carrier layer (DL) and an adhesive layer (LL) between the base layer and the carrier layer; - providing a first base layer cut line (B1) on the base layer to form a peripheral edge of the lid; - providing a first carrier layer cut line (D1) on the carrier layer, substantially within the contours and at a first distance (d1) from the first base layer cut line (B1), to provide a first adhesive zone (k1); - providing a second base layer cutting line (B2) on the base layer substantially within the contours and at a second distance (d2) from the first support layer cutting line (D1) to form a closure member (SL); - providing a second carrier layer cut line (D2) on the carrier layer, substantially within contours and at a third distance (d3) from the second base layer cut line (B2), to provide a re-adhesion zone (k2) between the second carrier layer cut line (D2 ) and the second base layer cutting line (B2). The method according to the previous claim, further comprising: - placing the reclosable lid on a hollow object by removing a first carrier layer portion outside the first carrier layer cut line.