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CN-224225670-U - Food packaging film with high-barrier aluminized layer

CN224225670UCN 224225670 UCN224225670 UCN 224225670UCN-224225670-U

Abstract

The utility model discloses a food packaging film with a high-barrier aluminized layer, which belongs to the technical field of food packaging films and comprises a bag body, wherein an opening is formed in the right side of the bag body, the bag body comprises a printing layer, a wear-resistant layer, a barrier layer, a high-temperature-resistant layer and a fresh-keeping antibacterial layer which are sequentially overlapped, and the barrier layer comprises an outer high-barrier aluminized film layer, an aluminum foil layer and an inner high-barrier aluminized film layer which are sequentially arranged from outside to inside. According to the utility model, through the structural design of the barrier layer, the outer high-barrier aluminized film layer, the aluminum foil layer and the inner high-barrier aluminized film layer, the barrier layer is formed by combining the outer high-barrier aluminized film layer, the inner high-barrier aluminized film layer and the aluminum foil layer, the defects that the barrier performance is reduced and the barrier performance of a single high-barrier coating film is not ideal due to micro pinholes in the aluminum foil can be avoided, so that the barrier performance is improved, the shelf life of the food is prolonged, and the use effect is good.

Inventors

  • ZHU ZHENJU
  • WANG ZHOU

Assignees

  • 海宁易通包装科技有限公司

Dates

Publication Date
20260512
Application Date
20250512

Claims (6)

  1. 1. The food packaging film with the high-barrier aluminized layer comprises a bag body (1) and is characterized in that an opening (2) is formed in the right side of the bag body (1), the bag body (1) comprises a printing layer (3), a wear-resistant layer (4), a barrier layer (5), a high-temperature resistant layer (6) and a fresh-keeping antibacterial layer (7) which are sequentially stacked, and the barrier layer (5) comprises an outer high-barrier aluminized film layer (8), an aluminum foil layer (9) and an inner high-barrier aluminized film layer (10) which are sequentially arranged from outside to inside.
  2. 2. The food packaging film with the high-barrier aluminum plating layer according to claim 1, wherein the outer high-barrier aluminum plating layer (8) and the inner high-barrier aluminum plating layer (10) are obtained by vapor deposition of an aluminum layer with a thickness of 200-900A on a polyolefin or polyester substrate with a thickness of 15-35 um, and the thickness of the aluminum foil layer (9) is soft aluminum foil with a thickness of 5-8 um of the barrier layer.
  3. 3. The food packaging film with the high-barrier aluminized layer according to claim 1, wherein the printing layer (3) is a PET film layer or a pearlescent OPP film layer, and the thickness of the printing layer (3) is 10-15um of the inner high-barrier aluminized film layer.
  4. 4. A food packaging film with a high barrier aluminized layer according to claim 1, characterized in that the wear layer (4) consists of a polyester film.
  5. 5. A food packaging film with a high barrier aluminized layer according to claim 1, characterized in that the high temperature resistant layer (6) consists essentially of cast polypropylene.
  6. 6. The food packaging film with the high-barrier aluminized layer according to claim 1, wherein the fresh-keeping antibacterial layer (7) mainly consists of chitosan and an aluminum film layer.

Description

Food packaging film with high-barrier aluminized layer Technical Field The utility model relates to the technical field of cutting devices, in particular to a food packaging film with a high-barrier aluminized layer. Background At present, the puffed food on the market is taken as a leisure snack, is popular among people, is cooked by a frying mode, is crisp and delicious to eat, cannot be stored for a long time under the normal environment due to the characteristics of the food, and is stored in a gas-filled package or box-packed mode in order to prevent the food from being broken in the process of packaging and storing and transporting, so that the quality of the product is affected. According to the application, improvement is carried out under the prior art, in the prior art, most of the packaging materials of the puffed food in the market are compounded by BOPP films and CPP films, and although the requirements of the aerated package of the food can be met, the original crispy taste of the puffed food is lost after the packaging materials are stored for a long time due to insufficient barrier property, so that the shelf life of the food is usually only a few months. The above information disclosed in this background of the application is only for enhancement of understanding of the background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. Disclosure of utility model The utility model aims to provide a food packaging film with a high-barrier aluminized layer, so as to solve the problems in the background art. In order to achieve the aim, the food packaging film with the high-barrier aluminized layer comprises a bag body, wherein an opening is formed in the right side of the bag body, the bag body comprises a printing layer, a wear-resistant layer, a barrier layer, a high-temperature resistant layer and a fresh-keeping antibacterial layer which are sequentially overlapped, and the barrier layer comprises an outer high-barrier aluminized film layer, an aluminum foil layer and an inner high-barrier aluminized film layer which are sequentially arranged from outside to inside. According to the utility model, the outer high-barrier aluminized film layer and the inner high-barrier aluminized film layer are obtained by evaporating an aluminum layer with the thickness of 200-900A on a polyolefin or polyester substrate with the thickness of 15-35 um, and the thickness of the aluminum foil layer is soft aluminum foil with the thickness of 5-8 um of the barrier layer. As a further scheme of the utility model, the printing layer is a PET film layer or a pearlescent OPP film layer, and the thickness of the printing layer is 10-15um of an inner high-barrier aluminized film layer. As a further aspect of the utility model, the wear-resistant layer is composed of a polyester film. As a further aspect of the present utility model, the high temperature resistant layer is composed mainly of cast polypropylene. As a further scheme of the utility model, the fresh-keeping antibacterial layer mainly consists of chitosan and an aluminum film layer. The utility model has the following beneficial effects: (1) Through the structural design of the barrier layer, the outer high-barrier aluminized film layer, the aluminum foil layer and the inner high-barrier aluminized film layer, the barrier layer is formed by combining the outer high-barrier aluminized film layer, the inner high-barrier aluminized film layer and the aluminum foil layer, the defects that the barrier performance is reduced due to micro pinholes in the aluminum foil and the barrier performance of a single high-barrier coating film is not ideal are avoided, the barrier performance is improved, the shelf life of the food is prolonged, the use effect is good, the problem that the shelf life of the food is usually only a few months due to the fact that the packaging material of the food on the market is mostly compounded by BOPP film and CPP film is solved, the requirement of the food gas-filled package can be met, but the original crisp taste of the puffed food is lost after the storage time is long due to the insufficient barrier performance; (2) Through the mutually supporting of printing layer, wearing layer, high temperature resistant layer and fresh-keeping antibacterial layer, through the setting of printing layer, can increase the aesthetic property of the bag body, through the setting of wearing layer, the wearing layer mainly by the polyester film for bag body mechanical properties is good, rigidity, hardness and toughness are high, puncture resistant, antifriction, high low temperature resistant, chemical resistance, oil resistance, gas tightness and fragrance retention are good, through the setting of high temperature resistant layer, high temperature resistant layer mainly comprises casting polypropylene, make the bag b