CN219133475U

CN219133475U - Packaging bag layered structure for strong-acid-resistant composite condiment

Info

Publication number: CN219133475U
Application number: CN202221348028.0U
Authority: CN
Inventors: 邬帅帆; 苗集海; 苗自婷; 卢佳佳; 陆君
Original assignee: Shanghai Totole Food Co ltd
Current assignee: Shanghai Totole Food Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2023-06-06
Anticipated expiration: 2032-05-23

Abstract

The utility model provides a packaging bag layered structure for strong acid resistant composite seasonings, wherein an ENE co-extrusion structural layer is adhered to the inner layer of the packaging bag through a second adhesive layer, and is a nylon and polyethylene composite structural layer. EAA material is used as a bonding layer between the aluminum foil layer and the inner layer co-extrusion structural layer, and the polymer material with thermoplasticity and extremely high cohesiveness is used for replacing the traditional dry-method composite adhesive, so that the problem that the traditional adhesive is not resistant to strong acid can be avoided, and the composite fastness of the composite film is greatly improved.

Description

Packaging bag layered structure for strong-acid-resistant composite condiment

Technical Field

The utility model relates to the technical field of food packaging, in particular to a packaging bag layered structure for a strong-acid-resistant composite condiment.

Background

The composite seasoning is an edible shaped seasoning product which is prepared by using two or more seasonings as raw materials and adding or not adding auxiliary materials through corresponding processes. Compared with single seasoning, the composite seasoning effectively simplifies the cooking process, enables consumers to make professional chefs and delicates at home, meets the requirements of consumers on the diversity of delicates in different regions, and can be used in the catering industry, instant foods, meat products and leisure foods, so that the composite seasoning is rapid in development and is favored. The composite seasoning is characterized in that the composite seasoning is produced by the combination of various seasoning substances, and the composite seasoning is affected by factors such as temperature, humidity, illumination, chemical components and the like to different extents in the storage process, so that the quality of products such as appearance, taste and flavor is changed, and the shelf life of the products is further affected. Therefore, proper packaging is required to ensure the stability of the flavor and nutritional quality of the product.

In order to adapt to the characteristics of convenient and quick use of the composite condiment, the composite condiment is mostly packaged by adopting a composite packaging bag, and the light-shielding property, the stability and the like of the product are considered. The current composite condiment packaging bags in the market mainly comprise an aluminum foil composite bag and a nylon composite bag, wherein the aluminum foil composite bag is formed by compounding aluminum foil with other materials, has the characteristics of high barrier property, low oxygen permeability, light impermeability and the like, and the nylon composite bag is formed by compounding polyamide (commonly called nylon) with other materials, so that the composite condiment packaging bag has good visibility. The two kinds of packaging bags can meet the quality stability requirement of common composite seasonings, but are not applicable to strong acid (PH value is 3-4) products, and the composite film layering phenomenon, even leakage, bag breaking and other larger quality problems often exist.

Disclosure of Invention

The utility model aims to provide a packaging bag layered structure with a stable preservation effect on a strong-acid compound condiment.

In order to achieve the above purpose, the utility model provides a packaging bag layered structure for strong acid resistant composite seasonings, wherein an ENE co-extrusion structural layer is adhered to the inner layer of the packaging bag through a second bonding layer, and the ENE co-extrusion structural layer is a nylon and polyethylene composite structural layer.

Further, the packaging bag further comprises an outer layer, wherein the outer layer comprises an ink printing layer, a first adhesive layer and an aluminum foil layer;

the printing ink printing layer is adhered to the aluminum foil layer through the first adhesive layer, and the aluminum foil layer is adhered to the ENE co-extrusion structural layer through the second adhesive layer.

Further, the ink printing layer is a PET layer or a BOPP layer, and the thickness of the ink printing layer is 10-30um.

Further, the first adhesive layer is a polyurethane adhesive for food, and the thickness is 3-5 um.

Further, the thickness of the aluminum foil layer is 7-9 um.

Further, the second adhesive layer is an ethylene and acrylic acid copolymer adhesive layer, and the thickness is 10-30um.

Further, the thickness of the ENE co-extrusion structural layer is 20-200 um.

Compared with the prior art, the utility model has the advantages that:

1. the ENE co-extrusion composite structure is used in the inner layer, so that the permeability resistance of the packaging material to strong acid and other volatile substances can be obviously enhanced and stabilized, and the barrier effect of the composite condiment packaging bag is further enhanced.

2. EAA material is used as a bonding layer between the aluminum foil layer and the inner layer co-extrusion structural layer, and the polymer material with thermoplasticity and extremely high cohesiveness is used for replacing the traditional dry-method composite adhesive, so that the problem that the traditional adhesive is not resistant to strong acid can be avoided, and the composite fastness of the composite film is greatly improved.

3. The packaging bag of the utility model can ensure the oxygen transmittance<0.1CC/(m ² X 24 h), water vapor transmission rate<0.1g/(m ² X 24 h) and prevents the delamination of the composite film due to the strong acidity of the composite seasoning, thereby meeting the shelf life requirements of the corresponding product.

Drawings

Fig. 1 is a schematic diagram of a layered structure of a package bag for a strong acid resistant composite seasoning in an embodiment of the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be further described below.

As shown in figure 1, the packaging bag for the strong acid resistant composite seasoning comprises a PET layer 1, a polyurethane adhesive layer 2, an aluminum foil layer 3, an EAA bonding layer 4 and an ENE co-extrusion layer 5.

The PET layer 1 is used as the surface layer of the ink printing layer on the packaging bag, the printing performance is excellent, and the thickness of the PET layer 1 is 12um. The PET layer 1 is combined with the aluminum foil layer 3 through the polyurethane adhesive layer 2, and the thickness of the aluminum foil layer 3 is 7um.

The EAA tie layer 4 has a thickness of 20um. The thickness of the ENE coextruded layer 5 is 70um. EAA and ENE are used cooperatively, so that the permeability of the packing material against strong acidity and other volatile gases can be enhanced, and meanwhile, the packing material has extremely strong adhesion capability with an aluminum foil layer, so that the problem of layering of the packing material can be effectively prevented.

The ENE co-extrusion layer 5 is formed by co-extrusion compounding of nylon, adhesive and polyethylene serving as basic materials, has excellent strong acid resistance and other volatile substance permeation prevention performances, and has good flexibility and excellent heat sealing performance.

Different compound condiment shelf lives are tested on the packaging bag for the strong acid resistant compound condiment, and test data show that: after 15 months of normal temperature shelf life, the oxygen permeability of the packaging material is 0.05 CC/(m) ² X 24 h), the water vapor permeability was 0.03 g/(m) ² ×24h)。

The packaging bag for the strong acid-resistant composite seasoning has a simple structure and reasonable design, and can obviously enhance the acid resistance and the permeation resistance of other volatile gases of the packaging bag by using the polyethylene, the nylon co-extrusion structure and the EAA copolymer bonding layer in the inner layer, so that the quality guarantee period of the composite seasoning is prolonged.

The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any person skilled in the art will make any equivalent substitution or modification to the technical solution and technical content disclosed in the utility model without departing from the scope of the technical solution of the utility model, and the technical solution of the utility model is not departing from the scope of the utility model.

Claims

1. The packaging bag layered structure for the strong acid resistant composite seasoning is characterized in that an ENE co-extrusion structural layer is adhered to the inner layer of the packaging bag through a second bonding layer, and the ENE co-extrusion structural layer is a nylon and polyethylene composite structural layer;

the thickness of the ENE co-extrusion structural layer is 20-200 um;

the packaging bag further comprises an outer layer, wherein the outer layer comprises an ink printing layer, a first adhesive layer and an aluminum foil layer;

the printing ink printing layer is adhered to the aluminum foil layer through the first adhesive layer, and the aluminum foil layer is adhered to the ENE co-extrusion structural layer through the second adhesive layer;

the second bonding layer is an ethylene and acrylic acid copolymer bonding layer with the thickness of 10-30um.

2. The packaging bag layered structure for strong acid resistant composite seasoning according to claim 1, wherein the ink printing layer is a PET layer or BOPP layer, and the thickness of the ink printing layer is 10-30um.

3. The laminated structure of packaging bags for strong acid resistant composite seasonings according to claim 2, wherein the first adhesive layer is a polyurethane adhesive for food and has a thickness of 3-5 um.

4. The laminated structure of a packaging bag for a strong acid resistant composite seasoning according to claim 2, wherein the thickness of the aluminum foil layer is 7 to 9 μm.