CN214691045U

CN214691045U - Transparent ultrahigh-barrier vacuum fresh-keeping bag

Info

Publication number: CN214691045U
Application number: CN202121023715.0U
Authority: CN
Inventors: 陈万祥; 陈梁; 肖海瑞; 于长丽
Original assignee: Harbin Botai Packaging Co ltd
Current assignee: Harbin Botai Packaging Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-11-12
Anticipated expiration: 2031-05-13

Abstract

A transparent ultrahigh-barrier vacuum fresh-keeping bag. The vacuum packaging bag aims at solving the problems that the existing vacuum packaging bag is single in product structure, poor in toughness resistance, poor in puncture resistance, high in product transportation breakage rate, uneven in bag body, poor in sealing performance and air leakage, poor in oxygen and moisture resistance, poor in product freshness, inconvenient in use of tearing openings and the like. The utility model discloses the bag body is a back sealing bag, the heat-seal edge (10) of the bag body is provided with an easy-to-tear opening (2), the heat-seal edge below the easy-to-tear opening is provided with an opening prompt mark (3), and the folding edges (5) at the two sides of the bag body are provided with a forming pressure angle (4); the easy-tearing opening is formed by N punctiform easy-tearing lines (11) and an arrow (12); the bag body is a multilayer composite bag formed by compounding a PA/PET layer, a PVA layer, a PA layer and a PE/CPP layer which are arranged from outside to inside. The utility model is suitable for a package bag which can block oxygen, moisture, toughness and tear easily.

Description

Transparent ultrahigh-barrier vacuum fresh-keeping bag

Technical Field

The utility model relates to a transparent superelevation separation vacuum freshness protection package.

Background

The existing packaging bag has the defects of single product structure, poor toughness resistance, poor puncture resistance, high product transportation breakage rate, uneven bag body, poor air leakage in sealing property, poor oxygen and moisture resistance, poor freshness of the product and inconvenient use of a tearing opening.

Disclosure of Invention

The utility model discloses a solve present wrapping bag physical properties poor, hinder the oxygen performance poor, the bag body unevenness tears the problem of difficulty, provides one kind and hinders the oxygen performance good, easily tear transparent superelevation separation vacuum freshness protection package.

The above purpose is achieved by the following scheme:

a transparent ultrahigh-barrier vacuum freshness protection package is characterized in that a package body of the transparent ultrahigh-barrier vacuum freshness protection package is a back-sealing package, an easy-to-tear opening is punched at a heat-sealing edge of the package body, an opening mark is scalded at a heat-sealing edge at the lower side of the easy-to-tear opening, and forming pressure angles are arranged at folding edges at two sides of the package body;

the easy-tearing opening is formed by N punctiform easy-tearing lines and an arrow;

the bag body is a multilayer composite bag formed by compounding a PA/PET layer, a PVA layer, a PA layer and a PE/CPP layer which are arranged from outside to inside.

The transparent ultrahigh-barrier vacuum fresh-keeping bag is characterized in that: when the secondary inner layer is a PA layer, the innermost layer of the bag body is a four-layer composite bag with a PE/CPP layer.

When the inner layer is the PE layer, the bag body is a three-layer composite bag.

The transparent ultrahigh-barrier vacuum fresh-keeping bag is characterized in that N is a positive integer,

。

the transparent ultrahigh-barrier vacuum fresh-keeping bag is characterized in that N punctiform easy-to-tear lines are arranged in parallel with the side surface of the bag body.

Advantageous effects

1. The utility model discloses the bag body is by outer and the compound multilayer bag that forms of the compound PA/PET layer of arranging in, PVA layer, PA layer, PE/CPP layer. Has high barrier performance, high freshness keeping performance, high strength and toughness and high impact strength.

2. The utility model discloses an easily tear mouth is easily torn the mouth that line and arrow point are easily torn by N punctiform and constitutes, makes its wrapping bag easily tear.

3. The utility model discloses bag body both sides have the shaping and press the angle, press the angle through this shaping and can make the product be the square brick state after loading the evacuation, can prevent that the grain of rice from entering into the wrapping bag bottom, punctures the sack, and the laminating nature is good simultaneously, the roughness is good, difficult virtual sealing, and is whole pleasing to the eye.

4. The utility model discloses a bag body easily tears mouth and anti-fake sword department has the heat-seal and strengthens the sword, can guarantee that the product gas tightness is good, prevents to leak gas.

Drawings

FIG. 1 is a front view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is a schematic view of a first construction of the pouch;

FIG. 5 is a schematic view of a second construction of the pouch;

FIG. 6 is a schematic view of a third construction of the pouch;

FIG. 7 is a schematic view of a fifth construction of the pouch;

FIG. 8 is a schematic view of a sixth construction of the pouch;

in the figure: 1. a bag body; 2. an easy-to-tear opening; 3. an anti-counterfeiting knife; 4. forming and pressing corners; 5. folding edges; 6. a PA layer; 7. a PVA layer; 8. a PE layer; 9. a PET layer; 10. performing hot edge sealing; 11. a punctiform easy-to-tear line; 12. marking the opening; 13. a CPP layer; 14. a heat seal reinforcing knife.

The specific implementation mode is as follows:

in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the first specific embodiment, the bag body of the transparent ultrahigh-barrier vacuum freshness protection package is a back-sealing bag, an easy-to-tear opening 2 is punched at a heat-sealing edge 10 of the bag body, an anti-counterfeiting knife 3 is scalded at a heat-sealing edge below the easy-to-tear opening, and forming pressing angles 4 are scalded at folding edges 5 at two sides of the bag body;

the easy-tearing opening is formed by N punctiform easy-tearing lines 11 and an arrow 12;

the bag body is a multilayer composite bag formed by compounding a PA/PET layer, a PVA layer, a PA layer and a PE/CPP layer which are arranged from outside to inside;

the PVA layer is a high-barrier coating layer, the transparency of the product is ensured, the oxygen barrier capability of the product is increased, and the oxygen barrier rate can reach less than 5 cm (m.24 h.0.1 MPa).

The PE layer is formed by blending and extruding POE, MLLDPE, LDPE and LLDPE, and can improve tensile breaking strength, elongation, puncture resistance, impact resistance and the like, wherein the tensile strength can reach 50MPa, the elongation can reach 600%, the puncture resistance can reach 7N, and the pendulum impact force of the bag can reach more than 1.5J.

As shown in fig. 4, the first structure of the bag body is composed of a PA layer 6, a PVA layer 7 and a PE layer 8 from outside to inside in sequence, wherein the PA layer and the PVA layer are bonded by their own viscosity, and the PVA layer and the PE layer are bonded by a composite adhesive;

as shown in fig. 5, the second structure of the bag body is composed of a PA layer, a PVA layer, a PA layer and a PE layer in sequence from outside to inside, wherein the PA layer is bonded to the PVA layer through its own viscosity, and the PVA layer is bonded to the PA layer and the PA layer through a composite adhesive;

as shown in fig. 6, the third structure of the bag body is formed by sequentially arranging a PET layer 9, a PVA layer, a PA layer and a PE layer from outside to inside, wherein the PET layer is bonded with the PVA layer through self viscosity, the PVA layer is bonded with the PA layer, and the PA layer is bonded with the PE layer through a composite adhesive;

the fourth structure of the bag body is: the PA layer 6, the PVA layer 7 and the PE layer 8 are arranged from outside to inside in sequence, the PA layer and the PVA layer are bonded by a coating strength adhesive, and the PVA and the PE are bonded by a composite adhesive;

as shown in fig. 7, the bag body has a fifth structure, which comprises a PET layer, a PVA layer and a PE layer from outside to inside in sequence, wherein the PET layer and the PVA layer are bonded by a coating strength adhesive, and the PVA layer and the PE layer are bonded by a composite adhesive;

as shown in fig. 8, the sixth structure of the bag body is formed by sequentially forming a PET layer, a PVA layer, a PA layer and a CPP layer 13 from outside to inside, wherein the PET layer is bonded with the PVA layer through a coating strength adhesive, the PVA layer is bonded with the PA layer, and the PA layer is bonded with the CPP layer through a composite adhesive;

the seventh structure of the bag body is: by outer and interior PET layer 9, PVA layer, PA layer and the PE layer of being in proper order, can adopt coating strength adhesive to bond between PET layer and the PVA layer, between PVA layer and the PA layer, all bond through compound adhesive between PA layer and the PE layer.

In a second embodiment, the second embodiment further describes the transparent ultrahigh-barrier vacuum fresh-keeping bag of the first embodiment, when the secondary inner layer is PA, the innermost layer of the bag body is a four-layer composite bag of PE/CPP.

In a third specific embodiment, the present embodiment further describes the transparent ultrahigh-barrier vacuum fresh-keeping bag in the first specific embodiment, when the inner layer is PE, the bag body is a three-layer composite bag.

In a fourth specific embodiment, which is a further description of the first specific embodiment, the transparent ultra-high-barrier vacuum fresh-keeping bag, N is a positive integer,

。

in a fifth embodiment, the present embodiment further illustrates the first embodiment, wherein the N punctate easy-tear lines are parallel to the side surface of the bag body.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A transparent ultrahigh-barrier vacuum fresh-keeping bag is characterized in that: the bag body of the transparent ultrahigh-barrier vacuum freshness protection bag is a back-sealing bag, an easy-to-tear opening is punched at the heat-sealing edge of the bag body, an opening mark is scalded at the heat-sealing edge at the lower side of the easy-to-tear opening, and forming pressing angles are arranged at the folding edges at the two sides of the bag body;

the bag body is a multi-layer composite bag formed by compounding an outer PA/PET layer, a PVA layer, a PA layer and a PE/CPP layer.

2. The transparent ultra-high barrier vacuum fresh-keeping bag as claimed in claim 1, wherein: when the secondary inner layer is a PA layer, the innermost layer of the bag body is a four-layer composite bag with a PE/CPP layer.

3. The transparent ultra-high barrier vacuum fresh-keeping bag as claimed in claim 1, wherein: when the inner layer is a PE layer, the bag body is a three-layer composite bag.

4. The transparent ultra-high barrier vacuum fresh-keeping bag as claimed in claim 1, wherein: the N is a positive integer, and the N is a positive integer,

。

5. the transparent ultra-high barrier vacuum fresh-keeping bag as claimed in claim 1, wherein: the N punctiform easy-to-tear lines are arranged in parallel with the side surface of the bag body.