CN114229219A

CN114229219A - One-way exhaust wrapping bag of shape returns

Info

Publication number: CN114229219A
Application number: CN202111619562.0A
Authority: CN
Inventors: 张迎波
Original assignee: Tsud Zhongshan Packaging Co ltd
Current assignee: Tsud Zhongshan Packaging Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-03-25

Abstract

The invention discloses a clip-shaped one-way exhaust packaging bag, and relates to the technical field of packaging bags. The invention comprises a bag body, wherein the upper side and the lower side of the bag body are provided with sealed edges, and one side or two sides of the bottom of the bag body are provided with a clip structure; the special structure of the bag body is that a plurality of one-way needle holes are arranged inside the clip-shaped structure. According to the invention, the plurality of one-way needle holes are arranged in the square-shaped structure of the bag body, so that when the interior of the bag body is in positive pressure, the air can be naturally exhausted through the square-shaped structure; when the interior of the bag body is negative pressure, the supporting material around the one-way needle hole is uniformly stressed to achieve natural closing, and the purposes of blocking air and preventing the gas of other components from exchanging with the gas in the bag body are achieved.

Description

One-way exhaust wrapping bag of shape returns

Technical Field

The invention belongs to the technical field of packaging bags, and particularly relates to a clip-shaped one-way exhaust packaging bag.

Background

At present, in some packaging bags needing moisture-proof exhaust, such as coffee, chemical raw materials and the like, in the market, single exhaust valve is mainly adopted for unidirectional exhaust, and in actual use, the cost of the unidirectional exhaust valve is increased, the more complex manual installation cost is also required, and the packaging and transportation cost of extra space is increased.

Disclosure of Invention

The invention aims to provide a clip-shaped one-way exhaust packaging bag, which is characterized in that a clip-shaped structure with a one-way pinhole is arranged on a bag body to realize natural exhaust through the clip-shaped structure when the interior of the bag body is in positive pressure; when the interior of the bag body is negative pressure, the one-way needle holes of the clip-shaped structure are formed, the supporting materials around the one-way needle holes can be uniformly stressed, so that the bag body can be naturally closed, air can be blocked, and gases of other components can be prevented from exchanging with the gases in the bag body.

In order to solve the technical problems, the invention is realized by the following technical scheme:

a one-way exhaust packaging bag of shape of returning, mainly include the bag, characterized by that, the upside of the said bag has upper edge seals, and the underside has lower edge seals, wherein both sides of the said lower edge seal can form the structure of returning to the shape of one side or symmetry; the clip structure is formed by arranging one or more circles of sealing edges at equal intervals, and a one-way pinhole is arranged at the center of the clip structure.

Preferably, the one-way pinhole is breakdown type or semi-breakdown type.

Preferably, in the square-shaped structure, an air flow channel is reserved between the sealing edge and extends from the inner cavity of the bag body to be connected to the one-way needle hole.

Preferably, each of the clip structures at least comprises and is provided with a one-way pinhole.

Preferably, the bag body can be made of a composite material matrix of PE or PET + AL + ONY + PE, PE + AL + ONY + PE, and PET + PE + ONY + PE.

Preferably, when the bag body is made of PE material, the manufacturing process comprises the steps of firstly blowing the film, then embossing and then making the bag.

Preferably, when the bag body is made of aluminum foil, the manufacturing process comprises the steps of film blowing, compounding, printing and bag making.

Preferably, in the bag making process, the bag making machine is required to complete the punching and the hot pressing of the splayed knife so as to complete the forming of the clip structure and the punching of the one-way pinholes, wherein the punching of the one-way pinholes specifically comprises the number, the size and the positions of the holes.

The embodiment of the invention has the following beneficial effects: the invention utilizes the characteristics of the soft packaging bag material, realizes the discharge of internal gas or the separation of gas exchange between the inside and the outside of the bag body by arranging the clip-shaped structure on the bag body, and specifically comprises the following steps: when the interior of the bag body is in positive pressure, the air can be naturally exhausted through the clip-shaped structure; when the inside of the bag body is negative pressure, the one-way needle holes of the clip-shaped structure are formed, the supporting materials around the one-way needle holes can be evenly stressed, so that the bag body can be naturally closed, the air can be blocked, and the gas inside the bag body can be prevented from being exchanged with the outside air. It is worth mentioning that the air flow channel is reserved in the bag body to exhaust air during manufacturing so as to realize one-time completion of manufacturing. The design can realize the one-way exhaust effect of the packaging bag under the condition of not adding any external accessories, and the advantages of energy conservation, environmental protection, high efficiency, labor conservation, and packaging and transportation cost conservation are achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram according to an embodiment of the present invention.

FIG. 2 is an enlarged view of the clip structure of the present invention.

FIG. 3 is a schematic view of another design structure of the clip structure of the present invention.

Wherein the figures include the following reference numerals: 1-bag body; 2-sealing the upper edge; 3-lower edge sealing; 4-a clip structure; 5-one-way pinhole; 6-airflow channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.

Referring to fig. 1 to 3, in the present embodiment, a one-way exhaust packaging bag in a shape of a Chinese character 'hui' is provided, which mainly includes a bag body, and is characterized in that an upper sealing edge is provided at an upper side of the bag body, and a lower sealing edge is provided at a lower side of the bag body, wherein a structure in a shape of a Chinese character 'hui' can be formed at one side or symmetrically at two sides of the lower sealing edge; the clip structure is formed by arranging one or more circles of sealing edges at equal intervals, and a one-way pinhole is arranged at the center of the clip structure.

This example illustrates an example application in conjunction with the above scheme:

before use, the lower sealed edge 3 is subjected to heat sealing during manufacture, and when materials are loaded, the materials to be stored are placed into the inner cavity of the bag body 1, then the upper sealed edge 2 is subjected to heat sealing, and then transportation or storage is carried out; if the material needs to be taken out, the upper sealed edge 2 or the lower sealed edge 3 of the bag body 1 is torn, and then the material is taken out from the bag body 1.

The bag body is characterized in that the clip structure is designed in a clip shape, a long and narrow air flow channel is reserved in the clip structure, the tail end of the air flow channel is provided with a one-way needle hole in a matching manner, and the one-way needle hole is formed in a needle punching manner and can be a puncture type or a semi-puncture type.

In the process of transportation or storage of the normal sealing bag, materials in the bag can move left and right under the action of external force, so that the accumulated volume is gradually reduced, positive pressure can be formed inside the bag body during stacking or natural placement, the gas in the bag body can prop open the gas flow channel from inside to outside, and the gas in the bag body is conveyed to the one-way needle hole through the gas flow channel to discharge redundant gas outwards; in addition, when air flows through the air flow channel, the pressure is reduced, the internal pressure of the bag body is reduced to be insufficient to expand the exhaust channel, and the air flow channel is closed due to the external air pressure, the material property of the bag body, the tension and the like; and when the bag body is filled with contents, the surface of the bag body can form a curved surface, and the clip structure is composed of two layers of same sheets, so that when the outer layer curved surface is stretched to wrap the inner layer, the attaching effect of the one-way needle hole is enhanced, thereby effectively isolating components such as water, air and the like in the outside air and realizing the function of one-way exhaust.

The special structure of the embodiment is that one side or two sides are provided with a single or a plurality of the clip structures.

The clip structure in this embodiment is provided with a narrow air flow passage.

The clip structure of this embodiment can have a plurality of one-way pinholes.

The clip structure of the present embodiment includes fig. 2 and 3 but is not limited to fig. 2 and 3.

The above embodiments may be combined with each other.

It should be noted that in the description of the present specification, descriptions such as "first", "second", etc. are only used for distinguishing features, and do not have an actual order or meaning, and the present application is not limited thereto.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A one-way exhaust packaging bag of shape returns mainly includes the bag body (1), characterized by that, the upside of the said bag body (1) has upper edge seals (2), and the underside has lower edge seals (3), wherein both sides of the said lower edge seal (3) can form the structure of shape returns (4) unilaterally or symmetrically; the clip structure (4) is formed by arranging one or more circles of sealing edges at equal intervals, and a one-way needle hole (5) is further formed in the center of the clip structure (4).

2. The one-way venting package of claim 1, wherein the one-way needle hole (5) is of a puncture type or a semi-puncture type.

3. The one-way exhaust packaging bag of the clip shape according to claim 1, wherein the clip structure (4) has an air flow passage (6) between the sealed edge and the sealed edge, extending from the inner cavity of the bag body (1) and connecting to the one-way needle hole (5).

4. A one-way venting package of a clip type according to claim 1, wherein each of said clip structures (4) includes at least one-way pinhole (5).

5. The one-way exhaust packaging bag of claim 1, wherein the material of the bag body (1) can be PE or PET + AL + ONY + PE, PE + AL + ONY + PE, PET + PE + ONY + PE composite material matrix.

6. The bag of claim 5, wherein when the bag body (1) is made of PE, the bag is made by blowing a film, embossing and then making a bag.

7. The bag of claim 5, wherein when the bag body (1) is made of aluminum foil, the bag is made by blowing a film, then compounding, printing, and then making a bag.

8. The clip-shaped one-way exhaust packaging bag according to claim 6 or claim, wherein in the bag making process, the forming of the clip-shaped structure (4) and the punching of the one-way needle holes (5) are completed by performing punching and hot pressing of a splayed knife on the bag making machine, wherein the punching of the one-way needle holes (5) specifically comprises the number, size and positions of the punching.