Barrier packaging container

Abstract

The barrier packaging container comprises a body and a sealing cover, the body is provided with an opening, the sealing cover is arranged at the opening of the body, the body comprises a body base paper layer, a body bonding resin layer, an aluminum-plated PET layer and a body heat-sealing resin layer, the aluminum-plated PET layer is arranged between the base paper layer and the heat-sealing resin layer, and the body bonding resin layer is arranged between the aluminum-plated PET layer and the heat-sealing resin layer. The bonding resin layer is arranged between the base paper layer and the aluminized PET layer, the sealing cover comprises a cover base paper layer, a cover bonding layer, an aluminum foil layer and a cover heat-sealing layer, the aluminum foil layer is arranged between the cover base paper layer and the cover heat-sealing layer, the cover bonding layer is arranged between the base paper layer and the aluminum foil layer, and the cover heat-sealing resin layer and the cover heat-sealing layer are bonded together. The packaging container has the following beneficial effects that the aluminized PET is adopted in the body for sealing and blocking, the aluminum foil is adopted in the cover body for sealing and blocking, the aluminized PET and the aluminum foil cannot crack during film spraying treatment, and the sealing integrity can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of packaging containers, in particular to a barrier packaging container. Background Art

[0002] Currently, many liquid beverages (including but not limited to yogurt) or solid foods (including but not limited to instant noodles) are packaged in paper and alumina composite containers. During preparation, the paper and alumina composite containers need to be coated (coating is for subsequent thermal bonding and sealing). If the temperature during the coating process is too high, the alumina coating may crack. Once the alumina coating cracks, the barrier properties of the entire container will be greatly reduced, thereby reducing the storage period of the edible items stored in the container. Utility Model Content

[0003] Aiming at the above problems, the utility model provides a barrier packaging container.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A barrier packaging container comprises a body and a sealing cover, wherein the body has an opening, and the sealing cover is arranged at the opening of the body, the body comprises a body base paper layer, a body adhesive resin layer, an aluminum-plated PET layer and a body heat-sealing resin layer, the aluminum-plated PET layer is arranged between the base paper layer and the heat-sealing resin layer, the adhesive resin layer is arranged between the base paper layer and the aluminum-plated PET layer, the sealing cover comprises a cover base paper layer, a cover adhesive layer, an aluminum foil layer and a cover heat-sealing layer, the aluminum foil layer is arranged between the cover base paper layer and the cover heat-sealing layer, the cover adhesive layer is arranged between the base paper layer and the aluminum foil layer, and the body heat-sealing resin layer and the cover heat-sealing layer are bonded together.

[0006] In this packaging container, the body can be a truncated cone barrel-shaped body or a round barrel-shaped body, and the sealing cover is arranged at the opening of the barrel body.

[0007] In this packaging container, aluminized PET is used in the main body for sealing and barrier, and aluminum foil is used in the cover for sealing and barrier. The aluminized PET and the aluminum foil will not crack during the lamination process, thus ensuring the integrity of the seal.

[0008] Optionally, it further includes a printing layer, which is arranged on the cover base paper layer through an adhesive glue layer, the adhesive glue layer and the cover adhesive layer are respectively located on both sides of the cover base paper layer, and an ink printing layer is arranged on the printing layer, and the ink printing layer is located between the adhesive glue layer and the printing layer. The specific printing layer is a PET film with a thickness of 6 to 12 um.

[0009] Optionally, the base paper layer is white cardboard or kraft cardboard, and the gram weight is 200-400g / m 2 .

[0010] Optionally, the thickness of the aluminum-coated PET is 12 um.

[0011] Optionally, the body adhesive resin layer is a PE resin layer with a gram weight of 10-30 g / m 2 .

[0012] Since the body adhesive resin layer adopts a PE resin layer, the body adhesive resin layer can be attached to the aluminized PET by laminating. After the laminating is completed, the body base paper layer is attached to the aluminized PET. The body adhesive resin layer plays a role in bonding the body base paper layer and the aluminized PET together.

[0013] Optionally, the body heat-sealing resin layer is a PE resin layer, and the body heat-sealing resin layer contains an oxygen absorbent.

[0014] Since the body heat-sealing resin layer is made of PE resin layer, the body heat-sealing resin layer can be attached to the aluminized PET by laminating, and a certain amount of white masterbatch can be added during laminating. The purpose of adding white masterbatch to the body heat-sealing resin layer is to make the entire body heat-sealing resin layer white, thereby covering the color of the aluminized PET. The role of the oxygen absorber is to absorb excess oxygen inside after the body and the cover are sealed.

[0015] Optionally, the cover base paper layer is offset paper, coated paper or kraft paper, and has a grammage of 40-150g / m 2 .

[0016] Optionally, the thickness of the aluminum foil is 4 to 10 um.

[0017] Optionally, the cover adhesive layer is a PE resin layer or a glue layer.

[0018] The cover adhesive layer can be PE resin or glue. When the cover adhesive layer is PE resin, it can be attached to the aluminum foil by laminating. When glue is selected, it can be solvent-based, solvent-free or water-based glue.

[0019] Optionally, the cover heat sealing layer is a PE heat sealing film or a PE resin layer; when the cover heat sealing layer is a PE heat sealing film, the thickness is 15-60um; when the cover heat sealing layer is a PE resin layer, the weight of the cover heat sealing layer is 10-60g / m 2 , and contains oxygen absorbent.

[0020] The specific function of the oxygen absorber is to absorb excess oxygen inside after the body and the cover are sealed. The specific oxygen absorber can be an unsaturated polyether.

[0021] The utility model has the beneficial effects that: the main body adopts aluminized PET for sealing and isolation, and the cover adopts aluminum foil for sealing and isolation; the aluminized PET and the aluminum foil will not crack during the laminating process, and the integrity of the seal can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the barrier packaging container structure;

[0023] Figure 2 It is a schematic cross-sectional view of the body;

[0024] Figure 3 It is a schematic cross-sectional view of the cover.

[0025] The reference numerals in the figure are: 1. body; 101. body base paper layer; 102. body adhesive resin layer; 103. aluminized PET; 104. body heat sealing resin layer; 2. cover; 201. printing layer; 202. ink printing layer; 203. adhesive glue layer; 204. cover base paper layer; 205. cover adhesive layer; 206. aluminum foil; 207. cover heat sealing layer. DETAILED DESCRIPTION

[0026] The utility model is described in detail below in conjunction with the accompanying drawings.

[0027] As attached Figure 1 And attached Figure 2 As shown, a barrier packaging container includes a body 1 and a cover 2, the body 1 has an opening, the cover 2 is arranged at the opening of the body 1, the body 1 includes a body base paper layer 101, a body adhesive resin layer 102, an aluminized PET 103 layer and a body heat-sealing resin layer 104, the aluminized PET 103 layer is arranged between the body base paper layer 101 and the heat-sealing resin layer, the adhesive resin layer is arranged between the body base paper layer 101 and the aluminized PET layer, the cover 2 includes a cover base paper layer 204, a cover adhesive layer 205, an aluminum foil 206 layer and a cover heat-sealing layer 207, the aluminum foil 206 layer is arranged between the cover base paper layer 204 and the cover heat-sealing layer 207, the cover adhesive layer 205 is arranged between the body base paper layer 101 and the aluminum foil 206 layer, and the body heat-sealing resin layer 104 and the cover heat-sealing layer 207 are bonded together.

[0028] In this packaging container, the main body 1 can be a truncated cone barrel-shaped main body 1 or a cylindrical barrel-shaped main body 1, and the sealing cover 2 is arranged at the opening of the barrel body.

[0029] In this packaging container, the main body 1 uses aluminum-plated PET 103 for sealing and isolation, and the cover body uses aluminum foil 206 for sealing and isolation. The aluminum-plated PET 103 and the aluminum foil 206 will not crack during the lamination process, which can ensure the integrity of the seal.

[0030] As attached Figure 1 And attached Figure 2 As shown, it also includes a printing layer 201, which is arranged on the cover base paper layer 204 through an adhesive glue layer 203, and the adhesive glue layer 203 (the glue can be solvent-based, solvent-free or water-based glue.) and the cover adhesive layer 205 are respectively located on both sides of the cover base paper layer 204, and an ink printing layer 202 is arranged on the printing layer 201, and the ink printing layer 202 is located between the adhesive glue layer 203 and the printing layer 201. Specifically, the printing layer 201 is a PET film with a thickness of 6 to 12 um.

[0031] As attached Figure 1 And attached Figure 2 As shown, the base paper layer 101 is white cardboard or kraft cardboard, and the gram weight is 200-400g / m 2 .

[0032] As attached Figure 1 And attached Figure 2 As shown, the thickness of the aluminum-plated PET 103 is 12 um.

[0033] As attached Figure 1 And attached Figure 2 As shown, the body adhesive resin layer 102 is a PE resin layer, and the gram weight is 10-30g / m 2 .

[0034] Since the body adhesive resin layer 102 is made of PE resin layer, the body adhesive resin layer 102 can be attached to the aluminized PET 103 by lamination. After the lamination is completed, the body base paper layer 101 is attached to the aluminized PET 103. The body adhesive resin layer 102 plays the role of bonding the body base paper layer 101 and the aluminized PET 103 together.

[0035] As attached Figure 1 And attached Figure 2 As shown, the body heat-sealing resin layer 104 is a PE resin layer, and the body heat-sealing resin layer 104 contains an oxygen absorbent.

[0036] Since the body heat-sealing resin layer 104 is made of PE resin layer, the body heat-sealing resin layer 104 can be attached to the aluminized PET 103 by laminating, and white masterbatch can be added during laminating. The white masterbatch is added when the body heat-sealing resin layer 104 is extruded to make the entire body heat-sealing resin layer 104 white, thereby covering the color of the aluminized PET 103. The role of the oxygen absorber is to absorb excess oxygen inside after the body 1 and the cover 2 are sealed.

[0037] As attached Figure 1 And attached Figure 2 As shown, the cover base paper layer 204 is offset paper, coated paper or kraft paper, and has a grammage of 40-150g / m 2 .

[0038] As attached Figure 1 And attached Figure 2 As shown, the thickness of the aluminum foil 206 is 4-10 um.

[0039] As attached Figure 1 And attached Figure 2 As shown, the cover adhesive layer 205 is a PE resin layer or a glue layer.

[0040] The cover adhesive layer 205 may be PE resin or glue. When the cover adhesive layer 205 is PE resin, it may be attached to the aluminum foil 206 by laminating. When glue is used, it may be solvent-based, solvent-free or water-based glue.

[0041] As attached Figure 1 And attached Figure 2 As shown, the cover heat seal layer 207 is a PE heat seal film or a PE resin layer; when the cover heat seal layer 207 is a PE heat seal film, the thickness is 15-60um; when the cover heat seal layer 207 is a PE resin layer, the weight of the cover heat seal layer 207 is 10-60g / m 2 , and contains oxygen absorbent.

[0042] The specific function of the oxygen absorber is to absorb excess oxygen inside after the body 1 and the cover 2 are sealed. The specific oxygen absorber can be an unsaturated polyether.

[0043] Combined with Figure 2 And attached Figure 3 As shown in , when the body and the cover are matched together to form a sealed container, the body base paper layer 101 is located outside the container, the body heat-sealing resin layer 104 is located inside the container, the cover heat-sealing layer is located inside the container, and the printing layer 201 is located outside the container.

[0044] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent transformations made using the contents of the present invention specification, directly or indirectly used in other related technical fields, are also included in the protection scope of the present invention.

Claims

1. A barrier packaging container, comprising a body and a cover, wherein the body has an opening, and the cover is arranged at the opening of the body, characterized in that: The body comprises a body base paper layer, a body adhesive resin layer, an aluminum-plated PET layer and a body heat-sealing resin layer, the aluminum-plated PET layer is arranged between the base paper layer and the heat-sealing resin layer, the adhesive resin layer is arranged between the base paper layer and the aluminum-plated PET layer, the cover comprises a cover base paper layer, a cover adhesive layer, an aluminum foil layer and a cover heat-sealing layer, the aluminum foil layer is arranged between the cover base paper layer and the cover heat-sealing layer, the cover adhesive layer is arranged between the base paper layer and the aluminum foil layer, and the body heat-sealing resin layer is bonded to the cover heat-sealing layer.

2. The barrier packaging container according to claim 1, characterized in that: It also includes a printing layer, which is arranged on the cover base paper layer through an adhesive glue layer, the adhesive glue layer and the cover adhesive layer are respectively located on both sides of the cover base paper layer, and an ink printing layer is arranged on the printing layer, and the ink printing layer is located between the adhesive glue layer and the printing layer; the printing layer is a PET film.

3. The barrier packaging container according to claim 1, characterized in that: The base paper layer is white cardboard or kraft cardboard, and the gram weight is 200-400g / m 2 .

4. The barrier packaging container according to claim 1, characterized in that: The thickness of the aluminized PET is 12 um.

5. The barrier packaging container according to claim 1, characterized in that: The body adhesive resin layer is a PE resin layer, and the weight is 10-30g / m 2 .

6. The barrier packaging container according to claim 1, characterized in that: The body heat-sealing resin layer is a PE resin layer, and the body heat-sealing resin layer contains an oxygen absorbent.

7. The barrier packaging container according to claim 1, characterized in that: The cover base paper layer is offset paper, coated paper or kraft paper, and the weight is 40-150g / m 2 .

8. The barrier packaging container according to claim 1, characterized in that: The thickness of the aluminum foil is 4-10 um.

9. The barrier packaging container according to claim 1, characterized in that: The cover adhesive layer is a PE resin layer or a glue layer.

10. The barrier packaging container according to claim 1, characterized in that: The cover heat sealing layer is a PE heat sealing film or a PE resin layer; when the cover heat sealing layer is a PE heat sealing film, the thickness is 15 to 60 um; When the cover heat seal layer is a PE resin layer, the weight of the cover heat seal layer is 10-60g / m 2 , and contains oxygen absorbent.

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