CN114671136A - Packaging bag and preparation method thereof - Google Patents

Abstract

The application relates to the field of commodity packaging, and particularly discloses a packaging bag, which mainly solves the problem that a closing opening of an opening end of the existing packaging bag is provided with residual materials. The packaging bag comprises: the upper end of the first surface is an opening end; a second surface disposed at a lower end of the first surface, the first surface and the second surface being perpendicular; a third surface disposed at one side of the first surface, the first surface being perpendicular to the third surface; a second seal disposed between the first surface and the third surface, the second seal configured to join the first surface and the third surface such that edges of the first surface and the third surface are in contact; the second sealing edge is linear, so that the opening end is in a straight-through design, and an oblique angle is arranged at the opening end of the second sealing edge.

Description

Packaging bag and preparation method thereof

Technical Field

The application relates to the field of chemical material packaging, in particular to a packaging bag and a preparation method of the packaging bag.

Background

The packaging bag is used for packaging various articles, so that goods are convenient to transport and easy to store in a production flow process, the commodity property of the package is more and more obvious, the packaging bag becomes a special product which is not attached to commodity production any more, and the packaging bag is a widely applied product which can not be separated from all commodities and is widely applied to daily life and industrial production. The composite flexible packaging bag has the advantages of good barrier property, beautiful appearance, high strength, impact resistance and the like. With the continuous development of science and technology, new products in the packaging bag industry emerge endlessly.

In the prior art, the opening end of a chemical material packaging bag is generally in a closing-up design, so that the chemical material packaging bag is convenient to seal after being packaged. But has the problem that the closing part of the opening end has residual materials after discharging, which is inconvenient to clean and wastes materials. In order to meet the market demand and solve the above technical problems, improvements to the prior art are urgently needed.

Disclosure of Invention

One of this application purpose is to provide a wrapping bag to the receipts mouth of opening has the problem of residual material behind the current wrapping bag blowing of solution.

The second purpose of the present application is to provide a method for preparing a packaging bag.

In order to achieve one of the purposes, the following technical scheme is adopted in the application: a packaging bag, comprising: the upper end of the first surface is an opening end; the second surface is arranged at the lower end of the first surface, and the first surface and the second surface are vertical; the third surface is arranged on one side of the first surface, and the first surface is vertical to the third surface; the second sealing edge is arranged between the first surface and the third surface and is used for connecting the first surface and the third surface to ensure that the edges of the first surface and the third surface are attached; the second sealing edge is linear, so that the opening end is in a straight-through design, and an oblique angle is arranged at the opening end of the second sealing edge.

By adopting the technical means, the second sealing edge is linear, so that the opening end of the packaging bag is designed to be straight-through, the closing type design in the prior art is changed, and no material is left at the opening end after material is discharged. Furthermore, the second banding at open end department is provided with the oblique angle for the wrapping bag demonstrates a cuboid after the material filling is accomplished and is sealed, and the tip can not appear in the wrapping bag, and the wrapping bag pile up neatly is accomplished the back like this, and the outward appearance is more pleasing to the eye, and the stability of assurance tray that can be better. And when the user of the packaging bag uses the materials in the packaging bag, the materials can be better poured out of the packaging bag, the materials cannot be left in a plurality of dead angles, the materials cannot be poured out, the utilization rate of the materials is improved to a certain extent, and unnecessary waste is avoided.

According to one embodiment of the present application, a first edge seal is provided between the first surface and the second surface, and the first edge seal is used for connecting the first surface and the second surface to make edges of the first surface and the second surface fit.

According to an embodiment of the application, the first sealed edge and the second sealed edge have a crease therebetween, and the first sealed edge and the second sealed edge are connected into a whole through the crease.

According to an embodiment of the application, wherein the bevel angles are inclined outwards.

According to an embodiment of the present application, wherein the third surface is provided with ventilation holes.

According to an embodiment of the application, wherein the ventilation holes are evenly distributed on the third surface.

According to one embodiment of the application, wherein the first surface is provided with cleats.

According to one embodiment of the present application, wherein the open end is provided with a heat-seal area.

According to an embodiment of the application, wherein the first surface comprises: two sheets of wrapping material and a cloth-like absorbent material sandwiched between the two sheets of wrapping material.

According to one embodiment of the application, wherein the absorbent material is made of synthetic fibres stretched to a fibrous form, the synthetic fibres are hydrophilically treated.

In order to achieve the second purpose, the invention adopts the following technical scheme: a preparation method of a packaging bag comprises the following steps:

connecting the first surface and the second surface to form a first seal;

connecting the first surface and the third surface to form a second seal; the second sealing edge is linear, so that the opening end is in a straight-through design, and an oblique angle is arranged at the opening end of the second sealing edge.

Has the advantages that:

this application is through being the linear type with the second banding for the open end design of wrapping bag has changed the design of the binding off formula among the prior art for there is not the material residue at open end department behind the blowing. Furthermore, the second banding at open end department is provided with the oblique angle for the wrapping bag demonstrates a cuboid after the material filling is accomplished and is sealed, and the tip can not appear in the wrapping bag, and the wrapping bag pile up neatly is accomplished the back like this, and the outward appearance is more pleasing to the eye, and the stability of assurance tray that can be better. And when the user of the packaging bag uses the materials in the packaging bag, the materials can be better poured out of the packaging bag, the materials cannot be left in a plurality of dead angles, the materials cannot be poured out, the utilization rate of the materials is improved to a certain extent, and unnecessary waste is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a packaging bag in an embodiment of the present application.

Fig. 2 is a side view of fig. 1.

Fig. 3 is a partially enlarged view of a portion a in fig. 1.

1. First surface 11, antislip strip

2. Open end 21, heat seal area

3. Second surface 31, first seal 32, crease

4. Third surface 41, second sealing edge 42 and air holes

5. Bevel angle

Detailed Description

For the purpose of clearly and completely describing the objects and technical solutions of the present application and better understanding, the embodiments of the present application are described in further detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are illustrative of some, but not all embodiments of the invention, and are intended to be included within the scope of the invention.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

The first embodiment is as follows:

fig. 1 shows a detailed structure of a packing bag according to a first embodiment of the present application, fig. 2 is a side view of fig. 1, and fig. 3 is a partially enlarged view of a portion a of fig. 1. As shown in fig. 1 to 3, a packaging bag in this embodiment includes a first surface 1, a second surface 3 and a third surface 4, the second surface 3 is disposed below the first surface 1 and perpendicular to the first surface 1, and the third surface 4 is disposed at one side of the first surface 1 and perpendicular to the first surface 1. Specifically, the number of the first surfaces 1 is two, and the first surfaces are the front and the back of the packaging bag. The number of the second surfaces 3 is one, and is the bottom surface of the packaging bag. The number of the third surfaces 4 is two, which are the left and right side surfaces of the packing bag. Wherein, a second sealing edge 41 is arranged between the first surface 1 and the third surface 4, and the second sealing edge 41 is used for connecting the first surface 1 and the third surface 4, so that the edges of the first surface 1 and the third surface 4 are attached. Between the second surface 3 and the third surface 4 there is a first sealing edge 31, which first sealing edge 31 is used to connect the second surface 3 and the third surface 4, so that the edges of the second surface 3 and the third surface 4 are attached. The first sealed edge 31 and the second sealed edge 41 are provided with a folding seam 31 therebetween, and the first sealed edge 31 and the second sealed edge 41 are connected into a whole through the folding seam 31 to realize the sealing of the side edge and the bottom of the packaging bag.

Further, the upper ends of the first surface 1 and the second surface 3 in this embodiment are the opening ends 2, and in order to solve the problem that the opening end 2 of the packaging bag has residual materials after being discharged in the prior art, the second sealing edge 41 in this embodiment is linear, so that the opening end of the packaging bag is designed to be straight-through, the closing design in the prior art is changed, and no materials are left at the opening end 2 after being discharged.

Further, second banding 41 in open end 2 department is provided with oblique angle 5, and this oblique angle 5 leans out for the wrapping bag is in the material filling completion and seals the back that finishes, demonstrates a cuboid, and the wrapping bag can not appear two points, and the wrapping bag pile up neatly is accomplished the back like this, and the outward appearance is more pleasing to the eye, and the stability of assurance tray that can be better. And when the user of the packaging bag uses the materials in the packaging bag, the materials can be better poured out of the packaging bag, the materials cannot be left in a plurality of dead angles, the materials cannot be poured out, the utilization rate of the materials is improved to a certain extent, and unnecessary waste is avoided.

In addition, the third surface 4 is provided with an air hole 42, and the air hole 42 is processed before the packaging bag is used. The air holes of the packaging bag in the prior art are formed in the front side and the back side, and the air holes need to be manually pricked out after the materials are filled, so that a long time is needed, manpower and material resources are consumed, the defects of inconvenience in use and difficulty in protecting the materials exist, the air holes 42 are formed in the side surface of the packaging bag body, the air exhaust is more uniform and faster, the materials are better protected, and the materials are not prone to caking; thus, the side is exhausted evenly from top to bottom, while the traditional exhaust port is above the bag, which is more even than the rear side; the air holes 42 are processed before the packaging bag is used, and the use is convenient.

Secondly, a cleat 11 is provided on the first surface 1. The anti-skidding effect of heavily wrapping bag seems especially important in the wrapping bag transportation of filling with the material, because chemical products are many and all pass through the shipment export, therefore can float a long period of time at sea, if the frictional force between wrapping bag and the wrapping bag is not enough, whole tray will scatter, this is the technical problem that wrapping bag user (carrier) faced always, this application wrapping bag passes through the coining mill, adopt special technology to set up high-quality antislip strip 11 on first surface 1, antislip strip 11 has not only played fine anti-skidding effect, and can not influence the intensity of whole sack again.

Finally, be provided with heat-seal region 22 on the open end 2, the heat-seal interval in heat-seal region has for 20 degrees to in the wrapping bag use, workman easy operation, and seal and be difficult to receive ambient temperature to influence, fine having avoided because workman's operation and the influence that the ambient temperature difference sealed to the wrapping bag. The technical means well solves the sealing problems that the packaging bag is easy to seal and is not firm or some bags are burnt and rotten due to heat sealing pollution caused by factors such as unskilled operation of workers, influence of air temperature, adsorption of powder on the heat seal of the packaging bag during product filling and the like in the using process of the packaging bag in the prior art.

The second embodiment:

on the basis of the first embodiment, the first surface 1, the second surface 3 and the third surface 4 in the present embodiment are made of the following materials: an absorbent material in the form of a cloth obtained by hydrophilically treating synthetic fibers stretched into a fibrous form is sandwiched between two sheets of wrapping material made of a synthetic resin film having thermoplasticity. In contrast, when the absorbent material is sandwiched between the synthetic resin films and heat-welded, the fiber structure of the absorbent material is successfully lost, and a transport packaging bag that does not leak even if a highly water-absorbent material liquid is sandwiched between the entire heat-welded surfaces is obtained, and it is possible to package and transport a material without the liquid leaking to the outside of the bag body, and it is possible to keep humidity so that the articles in the bag body do not dry, and it is possible to reduce the cost.

Example three:

on the basis of the first embodiment, the whole packaging bag in the embodiment is optimized by the friction coefficient. Specifically, the friction coefficient of the outer layer of the packaging bag body is increased, and the friction coefficient of the inner layer of the packaging bag body is reduced. By adopting the technical means, the outer friction coefficient of the packaging bag is increased, so that the friction force between the packaging bag and the packaging bag is increased when the packaging bag is stacked, and the smooth stacking of the packaging bag and the stability of the tray are ensured. The friction coefficient of the inner layer is reduced, so that the friction between the materials and the bag body when the packaging bag is fed in the material filling process can be reduced as much as possible, the smooth feeding is ensured, the problems that the feeding is not smooth and the bag falls off due to the impact of the materials on the bag body are solved, and the waste of the materials caused by the falling off of the packaging bag due to the impact of the materials on the packaging bag body is avoided; in addition, the static electricity generated by friction of the materials and the packaging bag body can be well reduced, so that damage to people or equipment is reduced.

In contrast, in the production of LDPE (low density polyethylene), LLDPE (linear low density polyethylene), HDPE (high pressure low density polyethylene) and PP (polypropylene) films, 0.1-0.3% of plastic opening powder 58 auxiliary agent is added, so that the cracking phenomenon of a melt can be effectively prevented under a high-speed shearing rate, the products are endowed with good opening property, slip property, anti-adhesion property, brightness and antistatic property, the adhesion among the films is effectively prevented, the waterproof and moisture-proof performance of the films is improved, the dynamic and static friction coefficients of the surfaces of the products are obviously reduced, the easy processing property and the packaging operation efficiency are improved, and the effect is better when the film is matched with pulvis talci and other powders for use.

Example four:

the implementation discloses a preparation method of a packaging bag, which comprises the following steps:

connecting the first surface and the second surface to form a first seal;

connecting the first surface and the third surface to form a second seal; the second sealing edge is linear, so that the opening end is in a straight-through design, and an oblique angle is arranged at the opening end of the second sealing edge.

Although the illustrative embodiments of the present application have been described above to enable those skilled in the art to understand the present application, the present application is not limited to the scope of the embodiments, and various modifications within the spirit and scope of the present application defined and determined by the appended claims will be apparent to those skilled in the art from this disclosure.

Claims (11)

1. A package, comprising:

the packaging bag comprises a first surface, a second surface and a third surface, wherein the upper end of the first surface is an opening end, and the number of the first surfaces is two, so that the front surface and the back surface of the packaging bag are formed;

a second surface disposed at a lower end of the first surface, the first surface and the second surface being perpendicular;

the number of the third surfaces is two, the third surfaces are arranged on two sides of the first surface, and the first surface is vertical to the third surfaces;

a second seal disposed between the first surface and the third surface, the second seal configured to join the first surface and the third surface such that edges of the first surface and the third surface are in contact;

the second sealing edge is linear, so that the opening end is in a straight-through design, and an oblique angle is arranged at the opening end of the second sealing edge.

2. The package of claim 1, wherein a first seal is provided between the first surface and the second surface, the first seal configured to join the first surface to the second surface to form a seal between edges of the first surface and the second surface.

3. The package of claim 2, wherein the first and second seals have a crease therebetween, the crease joining the first and second seals together.

4. The package of claim 1 wherein said angle is outwardly inclined.

5. The package of claim 1 wherein the third surface is provided with vents.

6. The package of claim 5 wherein said vents are evenly distributed on said third surface.

7. A pack as claimed in claim 1, wherein the first surface is provided with anti-slip strips.

8. The package of claim 1 wherein said open end is provided with a heat seal area.

9. The package of claim 1, wherein the first surface comprises: two sheets of wrapping material and a cloth-like absorbent material sandwiched between the two sheets of wrapping material.

10. The package of claim 9, wherein said absorbent material is made of synthetic fibers that are drawn into a fibrous form, said synthetic fibers being hydrophilically treated.

11. A method of making the package of claim 1, comprising the steps of:

connecting the first surface and the second surface to form a first seal;

connecting the first surface and the third surface to form a second seal; the second sealing edge is linear, so that the opening end is in a straight-through design, and an oblique angle is arranged at the opening end of the second sealing edge.

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