CN210590904U

CN210590904U - High-barrier beer packaging inner bag

Info

Publication number: CN210590904U
Application number: CN201921366747.3U
Authority: CN
Inventors: 卓友敬; 杨浩文
Original assignee: Huizhou Logos Packaging Material Co ltd
Current assignee: Huizhou Logos Packaging Material Co ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-05-22
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a high-barrier beer packaging inner bag, the bag wall of which is provided with only a high-barrier nylon film and a polyethylene film formed by film blowing which are sequentially laminated, and the high-barrier nylon film and the polyethylene film are mutually bonded and fixed through a polyurethane adhesive layer; the high-barrier nylon film comprises a first nylon surface layer, a first nylon core layer, a barrier layer, a second nylon core layer and a second nylon surface layer which are sequentially laminated; the thickness of the high-barrier nylon film is 15 micrometers, and the thickness of the polyethylene film is 30-50 micrometers. The high-barrier nylon film with the structure has outstanding oxygen barrier property, can prolong the shelf life of food, has outstanding aroma retention property, and can keep the original flavor of the food for a long time, thereby avoiding the loss of carbon dioxide or smell in beer. In addition, the high-barrier nylon film has good shrinkage rate, so that the packaging inner bag has good flexibility, the beer liquid can better stretch the bag, the packaging inner bag is better attached to the inner wall of the barrel, and the space of the barrel is utilized to the maximum extent.

Description

High-barrier beer packaging inner bag

Technical Field

The utility model relates to a soft-packing technical field, concretely relates to high resistant separates beer packaging inner bag.

Background

The beer is a low-concentration alcoholic beverage called 'liquid bread', which is brewed by using barley malt, hops and water as main raw materials through yeast fermentation and contains carbon dioxide. The beer has low ethanol content, and is beneficial to health if drunk in small amount. Beer is one of indispensable drinks in daily life nowadays, and the classification and packaging modes of the beer are diversified, and the most common packaging modes are bottling, barreling and filling. Wherein barreled beer is more applicable to large-scale meeting place, uses when being fit for many people to have a dinner, and barreled beer barrel repeatedly usable, the ladle body is provided with the bung hole valve, if directly pour beer into the bucket, it is volatile to store ethanol for a long time and leads to losing flavor. The inner packaging bag is sleeved in a barrel to contain beer, and a pipe opening valve is arranged in a bag body of the inner packaging bag, wherein the valve is in a rotary opening type, a pressing type, an extrusion type and other types. The inner bag is vacuumized after beer is filled so as to ensure that gas in the bag is discharged, when a consumer opens the valve to take beer, the beer in the bag flows out under the forced pressure of the outside atmosphere, air cannot flow into the bag from the valve, and the beer is always in a fully-closed oxygen-isolated environment in the whole taking process, so that the flavor of the beer is effectively ensured, and meanwhile, the consumer can control the outflow of the beer according to the drinking amount of the consumer, and the beer taking machine is very convenient and fast. The packing inner bag is sleeved in the barrel, the packing inner bag is required to have good flexibility, so that the beer liquid can better prop the bag open, the packing inner bag is enabled to be better attached to the inner wall of the barrel, the space of the barrel is utilized to the maximum extent to contain the beer, meanwhile, the packing inner bag is required to have good barrier property, the loss of carbon dioxide or smell in the beer is avoided, or oxygen enters the beer, however, the existing beer inner bag cannot meet the requirement.

Disclosure of Invention

There is above-mentioned technical problem to prior art, the utility model provides a high resistant separates beer packaging inner bag can avoid carbon dioxide or smell in the beer to run off.

In order to achieve the above object, the utility model provides a following technical scheme:

the high-barrier beer packaging inner bag is provided, the wall of the bag is only provided with a high-barrier nylon film and a polyethylene film formed by film blowing which are sequentially laminated, and the high-barrier nylon film and the polyethylene film are mutually bonded and fixed through a polyurethane adhesive layer; the high-barrier nylon film consists of a first nylon surface layer, a first nylon core layer, a barrier layer, a second nylon core layer and a second nylon surface layer which are sequentially laminated; the thickness of the high-barrier nylon film is 15 micrometers, and the thickness of the polyethylene film is 30-50 micrometers.

Wherein the barrier layer is an EVOH layer.

Wherein the thickness of the polyethylene film is 35 μm.

Wherein the polyethylene film is formed by blowing.

The utility model has the advantages that:

the utility model discloses a high resistant separates beer packaging inner bag because high resistant separates the nylon film including the first nylon top layer, first nylon sandwich layer, barrier layer, second nylon sandwich layer, the second nylon top layer that stack gradually, and the high resistant of this structure separates the nylon film and has outstanding oxygen separation nature, can prolong the shelf life of food, has outstanding fragrance preserving nature, can remain the original flavor of food for a long time, consequently can avoid carbon dioxide or smell loss in the beer. In addition, the high-barrier nylon film has good shrinkage rate, so that the packaging inner bag has good flexibility, the beer liquid can better stretch the bag, the packaging inner bag is better attached to the inner wall of the barrel, and the space of the barrel is utilized to the maximum extent.

Drawings

FIG. 1 is a schematic diagram showing the positions of layers of the bag wall of the inner bag of the high-barrier beer packaging bag in the embodiment.

Reference numerals:

the high-barrier nylon film comprises a high-barrier nylon film 1, a first nylon surface layer 11, a first nylon core layer 12, a barrier layer 13, a second nylon core layer 14 and a second nylon surface layer 15;

a polyethylene film 2.

Detailed Description

The present invention will be described in detail with reference to the following embodiments and accompanying drawings.

As shown in FIG. 1, the inner high-barrier beer packaging bag of the present embodiment has only a high-barrier nylon film 1 and a blown film-molded polyethylene film 2 laminated in this order on the bag wall, wherein the overall thickness of the high-barrier nylon film 1 is 15 μm, and the thickness of the polyethylene film 2 is 30 to 50 μm, preferably 35 μm. The high-barrier nylon film 1 and the polyethylene film 2 are bonded and fixed with each other through a polyurethane adhesive layer. The high-barrier nylon film 1 is composed of a first nylon surface layer 11, a first nylon core layer 12, a barrier layer 13, a second nylon core layer 14 and a second nylon surface layer 15 which are sequentially stacked, wherein the barrier layer 13 is an EVOH (ethylene/vinyl alcohol copolymer), the high-barrier nylon film 1 with the structure has outstanding oxygen barrier property, can prolong the shelf life of food, reduces the addition amount of food additives, prolongs the shelf life, has outstanding aroma retention property, and can keep the original flavor of the food for a long time; the strength, the shrinkage rate, the flatness, the smoothness, the haze and other properties are excellent, and the rubbing resistance is good. In practice, the polyethylene film 2 is formed by blowing the low-odor resin pellets and the linear low-density resin pellets through a film blowing machine, has excellent mechanical strength, further ensures that the inner packaging bag has good flexibility and can bear the pressure of beer, and has low resin taste and does not affect the quality of the beer.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A high-barrier beer packaging inner bag is characterized in that: the bag wall is provided with only a high-barrier nylon film and a polyethylene film which are sequentially laminated, and the high-barrier nylon film and the polyethylene film are mutually bonded and fixed through a polyurethane adhesive layer; the high-barrier nylon film consists of a first nylon surface layer, a first nylon core layer, a barrier layer, a second nylon core layer and a second nylon surface layer which are sequentially laminated; the thickness of the high-barrier nylon film is 15 micrometers, and the thickness of the polyethylene film is 30-50 micrometers.

2. The inner high-barrier beer packaging bag as claimed in claim 1, wherein: the barrier layer is an EVOH layer.

3. The inner high-barrier beer packaging bag as claimed in claim 1, wherein: the thickness of the polyethylene film was 35 μm.

4. The inner high-barrier beer packaging bag as claimed in claim 1, wherein: the polyethylene film is formed by blowing.