High-strength tear-resistant composite aluminum foil paperboard

Abstract

The utility model discloses a high-strength tear-resistant composite aluminum foil paperboard, and belongs to the technical field of packaging materials, the high-strength tear-resistant composite aluminum foil paperboard comprises a composite aluminum foil paperboard main body, the composite aluminum foil paperboard main body comprises a base material layer, the base material layer adopts high-quality kraft paper as a raw material, and a stretch-resistant net is arranged on the upper surface of the base material layer; the high-quality kraft paper is selected as the raw material of the base material layer, good printing applicability and low cost can be guaranteed, the stretch-resistant net is arranged between the base material layer and the aluminum foil layer, and the base material layer, the aluminum foil layer and the stretch-resistant net are fixedly bonded together through the adhesive layer to form a whole. The tensile net formed by weaving the vertical cellulose filaments and the transverse cellulose filaments in a staggered mode has excellent mechanical performance due to the strong interaction force between molecules, so that the tearing strength and the overall mechanical stability of the composite aluminum foil paperboard main body can be greatly improved, the composite aluminum foil paperboard main body can bear large external force such as stretching, compression and bending, and the service life of the composite aluminum foil paperboard main body is prolonged. And firmness and durability are realized.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of packaging materials, in particular to a high-strength tear-resistant composite aluminum foil cardboard. BACKGROUND

[0002] With the continuous development of society, the continuous refinement of social division of labor and the continuous improvement of people's demand, the printing and packaging industry has developed rapidly in China, among which the paper packaging develops the most rapidly. Cardboard is a commonly used packaging material in paper packaging, and composite aluminum foil cardboard is welcomed by the packaging industry because of its beautiful and high-grade appearance and is one of the most commonly used cardboard.

[0003] The existing composite aluminum foil cardboard has structural design defects, and the tensile and compressive strength of the composite aluminum foil cardboard is weak, which cannot meet the packaging demand in many cases. Therefore, the high-strength tear-resistant composite aluminum foil cardboard is improved. CONTENT OF THE INVENTION

[0004] In view of the shortcomings of the prior art, the application provides a high-strength tear-resistant composite aluminum foil cardboard, which overcomes the shortcomings of the prior art and aims to solve the problem that the tensile and compressive strength of the existing composite aluminum foil cardboard is weak and cannot meet the packaging demand in many cases.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a high-strength tear-resistant composite aluminum foil cardboard, comprising a composite aluminum foil cardboard main body, the composite aluminum foil cardboard main body comprises a base material layer, the base material layer uses high-quality kraft paper as raw material, the upper surface of the base material layer is provided with a tensile-resistant net, the tensile-resistant net is a net-like structure formed by interlaced weaving of vertical cellulose filaments and horizontal cellulose filaments, the upper surface of the tensile-resistant net is provided with an aluminum foil layer, and the base material layer and the aluminum foil layer are fixedly bonded through an adhesive layer passing through the mesh holes of the reinforcing net.

[0006] By using the above technical scheme, by selecting high-quality kraft paper as the raw material of the base material layer, good printing applicability and low cost can be ensured, the tensile-resistant net is arranged between the base material layer and the aluminum foil layer, and the three are fixedly bonded together to form a whole through the adhesive layer, due to the rigidity and stability of the cellulose molecular chain and the strong intermolecular interaction force, the tensile-resistant net formed by interlaced weaving of the vertical cellulose filaments and the horizontal cellulose filaments has excellent mechanical properties, so that the tear resistance and overall mechanical stability of the composite aluminum foil cardboard main body can be greatly improved, so that it can withstand greater tensile, compression and bending external forces and is more solid and durable.

[0007] As a preferred technical scheme of the application, the adhesive layer uses an environmentally friendly water-based polyurethane adhesive.

[0008] By adopting the technical scheme, the environment-friendly water-based polyurethane adhesive is adopted, so that firm combination between layers is ensured while harmful substance emission is reduced.

[0009] As a preferred technical scheme of the present application, the vertical cellulose filaments and the horizontal cellulose filaments are perpendicular to each other and both enclose the communication hole.

[0010] By adopting the technical scheme, the communication hole provides a necessary condition for the adhesive layer to pass through.

[0011] As a preferred technical scheme of the present application, the upper surface of the aluminum foil layer is coated with a varnish layer, and the outer side of the varnish layer is coated with a golden colorant.

[0012] By adopting the technical scheme, the surface glossiness of the aluminum foil layer can be improved, and the aluminum foil layer is more bright and beautiful, and the golden colorant adds a golden appearance effect to the aluminum foil layer.

[0013] As a preferred technical scheme of the present application, the upper surface of the varnish layer is provided with a protective layer, and the protective layer is a PE film made of LLDPE material.

[0014] By adopting the technical scheme, the PE film made of LLDPE material has excellent toughness and transparency and is easy to be processed into a film, and the PE film as the protective layer can further enhance the moisture-proof performance and mechanical strength.

[0015] As a preferred technical scheme of the present application, the lower surface of the substrate layer is brushed with a waterproof agent, and the waterproof agent is a fluorine resin preparation.

[0016] By adopting the technical scheme, the waterproof agent is applied to the substrate layer in the form of brushing to form a waterproof layer, so that the waterproof effect is enhanced.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1. In the present application, high-quality kraft paper is selected as the raw material of the substrate layer, so that good printing applicability and low cost are ensured, a tensile-resistant net is arranged between the substrate layer and the aluminum foil layer, and the three are fixed and adhered together to form an integral whole by the adhesive layer, due to the rigidity and stability of the cellulose molecular chain and the strong intermolecular interaction force, the tensile-resistant net woven by the vertical cellulose filaments and the horizontal cellulose filaments has excellent mechanical properties, so that the tear resistance and overall mechanical stability of the composite aluminum foil paper main body can be greatly improved, so that the composite aluminum foil paper main body can withstand greater tensile, compression and bending external forces and is more durable.

[0019] 2. The utility model discloses a varnish layer can improve the surface gloss of aluminium foil layer, make it more bright, and gold colorant adds the golden appearance effect of aluminium foil layer, and PE film as the protection layer can further enhance the moisture-proof performance and mechanical strength, and waterproof agent is applied to the substrate layer through the mode of brushing, forms waterproof layer to enhance its waterproof effect.

[0020] The specific embodiments of the utility model are disclosed in detail with reference to the following description and drawings, and the principle of the utility model can be adopted, and it should be understood that the embodiments of the utility model are not limited in scope. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation of the utility model, and in the drawings:

[0022] Figure 1 It is the whole structure schematic diagram of the application;

[0023] Figure 2 It is the component structure schematic diagram of the composite aluminium foil card paper main body of the application;

[0024] Figure 3 It is the structure schematic diagram of the tensile resistance net of the application.

[0025] In the drawing: 1, composite aluminium foil card paper main body;11, substrate layer;12, aluminium foil layer;13, adhesive layer;14, tensile resistance net;141, vertical cellulose silk;142, horizontal cellulose silk;143, communicating hole;15, varnish layer;16, protection layer;17, waterproof agent. DETAILED DESCRIPTION

[0026] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0027] As Figure 1 - Figure 3As shown, the high-strength tear-resistant composite aluminum foil card paper provided by the embodiment comprises a composite aluminum foil card paper body 1, and the composite aluminum foil card paper body 1 comprises a substrate layer 11, the substrate layer 11 uses high-quality kraft paper as raw material, the upper surface of the substrate layer 11 is provided with a tensile-resistant net 14, the tensile-resistant net 14 is a mesh structure formed by interlaced weaving of vertical cellulose filaments 141 and horizontal cellulose filaments 142, the upper surface of the tensile-resistant net 14 is provided with an aluminum foil layer 12, and the substrate layer 11 and the aluminum foil layer 12 are fixedly bonded by an adhesive layer 13 passing through the mesh holes of the reinforcing net 2, in use, by selecting high-quality kraft paper as the raw material of the substrate layer 11, good printing applicability and low cost can be ensured, the tensile-resistant net 14 is arranged between the substrate layer 11 and the aluminum foil layer 12 and the three are fixedly bonded together by the adhesive layer 13 to form an integral whole, due to the rigidity and stability of the cellulose molecular chain and the strong intermolecular interaction force, the tensile-resistant net 14 formed by interlaced weaving of the vertical cellulose filaments 141 and the horizontal cellulose filaments 142 has excellent mechanical properties, so that the tear resistance and overall mechanical stability of the composite aluminum foil card paper body 1 can be greatly improved, so that it can withstand greater tensile, compression and bending external forces, and is more solid and durable.

[0028] As a preferred technical solution of the present application, the adhesive layer 13 uses an environmentally friendly water-based polyurethane adhesive, which ensures firm bonding between the layers while reducing harmful substance emissions.

[0029] As a preferred technical solution of the present application, the vertical cellulose filaments 141 and the horizontal cellulose filaments 142 are perpendicular to each other and form a communication hole 143 therebetween, which provides a necessary condition for the adhesive layer 13 to pass through in use.

[0030] As a preferred technical solution of the present application, the upper surface of the aluminum foil layer 12 is coated with a varnish layer 15, and the outer side of the varnish layer 15 is coated with a golden colorant, which can improve the surface gloss of the aluminum foil layer 12 and make it more bright and beautiful, and the golden colorant adds a golden appearance effect to the aluminum foil layer 12.

[0031] As a preferred technical solution of the present application, the upper surface of the varnish layer 15 is provided with a protective layer 16, and the protective layer 16 is selected from a PE film made of LLDPE material, which has excellent toughness and transparency and is easy to process into a film, and the PE film as the protective layer 16 can further enhance the moisture-proof performance and mechanical strength.

[0032] As a preferred technical scheme of the present application, the lower surface of the substrate layer 11 is brushed with a waterproof agent 17, which is a fluorine resin preparation, and in use, the waterproof agent 17 is applied to the substrate layer 11 by brushing to form a waterproof layer, thereby enhancing the waterproof effect.

[0033] The working principle of the utility model is: when using the high-strength tear-resistant composite aluminum foil card paper, high-quality kraft paper is selected as the raw material of the substrate layer 11, which can ensure good printing applicability and low cost, the tensile-resistant net 14 is arranged between the substrate layer 11 and the aluminum foil layer 12 and the three are fixed and adhered together by the adhesive layer 13 to form a whole, due to the rigidity and stability of the cellulose molecular chain and the strong intermolecular interaction force, the tensile-resistant net 14 formed by the vertical cellulose filaments 141 and the horizontal cellulose filaments 142 interlaced weaving has excellent mechanical properties, thereby the tear resistance and overall mechanical stability of the composite aluminum foil card paper main body 1 can be greatly improved, so that it can withstand greater tensile, compression and bending external forces, and is more solid and durable.

[0034] In the description of the utility model, it needs to be explained that the directions or position relations indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication between two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to the specific situation.

[0036] The utility model has been described above in combination with specific embodiments, but those skilled in the art should know that these descriptions are exemplary and are not a limitation on the protection scope of the utility model. Those skilled in the art can make various modifications and changes to the utility model according to the spirit and principles of the utility model, and these modifications and changes are also within the scope of the utility model.

Claims

1. A high-strength tear-resistant composite aluminum foil card paper comprising a composite aluminum foil card paper main body (1), characterized by, The composite aluminum foil card paper body (1) comprises a base material layer (11), the base material layer (11) uses high-quality kraft paper as raw material, the upper surface of the base material layer (11) is provided with a tensile-resistant net (14), the tensile-resistant net (14) is a net structure which is interlaced and woven by vertical cellulose filaments (141) and horizontal cellulose filaments (142), the upper surface of the tensile-resistant net (14) is provided with an aluminum foil layer (12), and the base material layer (11) and the aluminum foil layer (12) are fixedly bonded through an adhesive layer (13) which passes through the mesh of the reinforcing net (2).

2. The high-strength, tear-resistant, composite aluminum foil paperboard of claim 1, wherein, The adhesive layer (13) adopts an environmentally-friendly water-based polyurethane adhesive.

3. The high-strength, tear-resistant, composite aluminum foil paperboard of claim 1, wherein, The vertical cellulose filaments (141) and the horizontal cellulose filaments (142) are perpendicular to each other and both enclose a communication hole (143).

4. The high-strength, tear-resistant, composite aluminum foil paperboard of claim 1, wherein, The upper surface of the aluminum foil layer (12) is coated with a varnish layer (15), and the outer side of the varnish layer (15) is coated with a golden colorant.

5. The high-strength, tear-resistant, composite aluminum foil paperboard of claim 4, wherein, The upper surface of the varnish layer (15) is provided with a protective layer (16), and the protective layer (16) is a PE film made of LLDPE material.

6. The high-strength, tear-resistant, composite aluminum foil paperboard of claim 1, wherein, The lower surface of the base material layer (11) is brushed with a waterproof agent (17), and the waterproof agent (17) is a fluorine resin preparation.

Images