CN211845535U

CN211845535U - Open packaging bag

Info

Publication number: CN211845535U
Application number: CN202020409129.9U
Authority: CN
Inventors: 魏爱会; 魏爱桥
Original assignee: Shijiazhuang Kangyi Packing Co ltd
Current assignee: Hebei Liguang New Material Technology Co.,Ltd.
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-11-03
Anticipated expiration: 2030-03-26

Abstract

The utility model provides an open packaging bag, belonging to the technical field of powder material packaging, comprising a bag body, wherein the top end of the bag body is open, the bottom end is closed to form a sealed bottom, two sides are respectively provided with a hem, and the hem is a V-shaped structure which is folded inwards along the sidelines of the two sides; the bag body comprises at least two layers of packaging paper which are sequentially overlapped from inside to outside, wherein the inner surface and/or the outer surface of at least one layer of packaging paper is coated with a biodegradable material coating. The utility model provides an open packaging bag, after the material is filled, the V-shaped structure hems at two sides of the bag body are unfolded, the shape of the bag body can be supported, and the bag body keeps the square and regular appearance, thereby facilitating the stacking and placing of the bag body in the storage or transportation process; the inner surface and/or the outer surface coating of one layer of wrapping paper have biodegradable material coating, can enough provide dampproofing and waterproofing performance for the internal material of bag, can guarantee again that the bag body after the use need not the split, can directly carry out whole biodegradable, convenient environmental protection.

Description

Open packaging bag

Technical Field

The utility model belongs to the technical field of the powder material packing, more specifically says, relates to an uncovered wrapping bag.

Background

At present, packaging of decoration materials, particularly packaging of powder materials, is generally carried out by adopting an open packaging bag, the existing open packaging bag is formed by an outer packaging paper layer and an inner waterproof layer, and the shape of the bag cannot be maintained after the materials are filled due to the large opening of the open packaging bag, so that the bag is not easy to place in the process of storage or transportation; and the inner waterproof layer is made of plastic materials or paper-plastic composite materials, and because the materials are difficult to degrade, a large amount of packaging garbage generated in the decoration process is difficult to treat, so that great environmental protection pressure is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an uncovered wrapping bag, it is big to aim at solving the uncovered wrapping bag storage or the transportation in the degree of difficulty, and the poor problem of feature of environmental protection.

In order to achieve the above object, the utility model adopts the following technical scheme: the open packaging bag comprises a bag body, wherein the top end of the bag body is open, the bottom end of the bag body is closed to form a sealed bottom, two sides of the bag body are respectively provided with a folded edge, and the folded edges are of V-shaped structures which are folded inwards along side lines of the two sides of the bag body; the bag body comprises at least two layers of packaging paper which are sequentially overlapped from inside to outside, wherein the inner surface and/or the outer surface of at least one layer of packaging paper is coated with a biodegradable material coating.

As another embodiment of the present application, the biodegradable material coating layer is applied to the inner surface of the wrapper of the outer layer or the inner and/or outer surfaces of at least one of the wrappers of the inner layer.

As another embodiment of the present application, the back cover is a rectangular planar structure formed by folding and bonding the bottom end of the bag body, and when the two folding edges are unfolded, the bottom ends of the two side lines of each folding edge are respectively overlapped with the two corners of one side of the back cover.

As another embodiment of the present application, a patch is adhered to the outer wall of the back cover, and the patch is aligned with the peripheral edge of the back cover.

As another embodiment of the present application, the back cover is a linear structure formed by folding and sewing along the bottom end of the bag body, and when the two folding edges are unfolded, the bottom ends of the two sidelines of each folding edge are correspondingly overlapped with one end of the back cover.

As another embodiment of the application, the packing paper is provided with at least three layers, a plurality of first air holes are formed in the innermost packing paper in an array arrangement, a plurality of second air holes are formed in the middle packing paper in an array arrangement, and the first air holes and the second air holes are distributed in a staggered manner.

As another embodiment of the present application, the aperture of the first vent is larger than that of the second vent, and the arrangement density of the plurality of first vents is lower than that of the plurality of second vents.

As another embodiment of the application, the inner peripheral wall of the opening part of the bag body is provided with a hot melt adhesive tape.

The utility model provides a pair of uncovered wrapping bag's beneficial effect lies in: compared with the prior art, the utility model discloses an open packaging bag adopts the open structure setting, facilitates the material loading, and the V-arrangement hem of bag body both sides is expanded after the material is filled, can support the bag body shape, makes the bag body keep the square state to convenient the storage or the putting of transportation; the bag body has the multilayer wrapping paper, and the internal surface and/or the outer surface coating of one deck wrapping paper have biodegradable material coating, can enough provide dampproofing and waterproofing performance for the internal material of bag, can guarantee again that the bag body after using need not the split, can directly carry out whole biodegradable, convenient environmental protection.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described 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 to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of an open package bag according to an embodiment of the present invention;

FIG. 2 is a schematic view of a bottom closure structure of the open top package of FIG. 1;

fig. 3 is a schematic structural view of an open packaging bag according to an embodiment of the present invention;

fig. 4 is a top view of an open package bag according to an embodiment of the present invention.

In the figure: 1. a bag body; 10. wrapping paper; 101. a biodegradable material coating; 102. a first air vent; 103. A second air hole; 11. sealing the bottom; 110. a suture; 12. folding edges; 120. a side line; 13. hot melting adhesive tapes; 14. and (3) pasting.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and 4 together, an open package bag according to the present invention will now be described. The open packaging bag comprises a bag body 1, wherein the top end of the bag body 1 is open, the bottom end of the bag body is closed to form a sealed bottom 11, two sides of the bag body are respectively provided with a folding edge 12, and the folding edge 12 is of a V-shaped structure which is folded inwards along side lines 120 on the two sides of the folding edge; the bag body 1 comprises at least two layers of packaging paper 10 which are sequentially overlapped from inside to outside, wherein the inner surface and/or the outer surface of at least one layer of packaging paper 10 is coated with a biodegradable material coating 101.

The utility model provides a pair of preparation and the using-way of uncovered wrapping bag: selecting a layer of the cut packaging paper 10 to be coated on one side or two sides by adopting a biodegradable material (coating is a method for coating a pasty polymer, a molten polymer or a polymer melt on paper, cloth or a plastic film to obtain a composite material), generating a biodegradable material coating 101, then stacking the packaging paper 10 with other packaging paper 10, preferably stacking the packaging paper 10 provided with the biodegradable material coating 101 on an intermediate layer or an innermost layer, then enclosing at least two layers of the packaging paper 10 into a cylinder shape and bonding the packaging paper into a bag body 1, wherein the overlapping parts of the multilayer packaging paper 10 can adopt a mode of overlapping and bonding, or respectively bonding the multiple layers of the packaging paper 10 at the overlapping parts into a whole and then overlapping and bonding into the bag body 1, sealing (bonding or sewing) the bottom end of the bag body 1 after bonding, and internally folding two sides of the bag body 1 along a vertical folding line (a side line 120) to form V-shaped structural folds 12 (the folds 12 and the front side and the back side of the bag body 1 together Forming an M-shaped structure, see fig. 4), flattening after the inward folding is finished, unfolding the folded edge 12 when the materials are transshipped, and keeping the square state of the bag body 1 by using the folded angles on the two sides of the folded edge 12.

Compared with the prior art, the open packaging bag provided by the utility model adopts the open structure, which is convenient for material loading, after the material is filled, the V-shaped structure hems 12 at the two sides of the bag body 1 are unfolded, which can support the shape of the bag body 1, so that the bag body 1 keeps a square state, thereby being convenient for storage or placement in the transportation process; the bag body 1 has multilayer wrapping paper 10, and wherein the internal surface and/or the outer surface coating of one deck wrapping paper 10 have biodegradable material coating 101, can enough provide dampproofing and waterproofing performance for the material in the bag body 1, can guarantee again that the bag body 1 after using need not the split, can directly carry out whole biodegradable, convenient environmental protection.

Referring to fig. 1 or 3, as an embodiment of the open top packaging bag provided by the present invention, a biodegradable material coating layer 101 is coated on an inner surface of the outer packaging paper 10 or an inner surface and/or an outer surface of at least one layer of the inner packaging paper 10. The biodegradable material coating 101 has waterproof and moistureproof properties, is coated on the inner surface and/or the outer surface of the packing paper 10 at the innermost layer or the middle layer, has good sealing performance on materials in the bag body 1, and prevents the materials from being affected with damp.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and fig. 2, the back cover 11 is a rectangular structure formed by folding and bonding the bottom end of the bag body 1, and when the two folding edges 12 are unfolded, the bottom ends of the two side lines 120 of each folding edge 12 are respectively overlapped with the two corners of one side of the back cover 11. When the packing material, can form the cube structure with back cover 11 after bag body 1 both sides hem 12 expandes, because the bottom of the bag body 1 is folding to bond, consequently the wrapping paper 10 thickness of back cover 11 is big, intensity is high, can play good supporting role to can ensure to keep the outward appearance side after the bag body 1 packing material, conveniently store and transport and put.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 2, a patch 14 is adhered to the outer wall of the back cover 11, and the patch 14 is aligned with the peripheral edge of the back cover 11. Paster 14 can improve the intensity of back cover 11 on the one hand after 11 bonds in the back cover, ensures that the filling is accomplished the outward appearance of the back bag body 1 and is just, conveniently stores and transports and puts, and on the other hand paster 14 can improve 11 bonding reliability in the back cover, avoids the not hard up material that arouses in bonding position to spill hourglass.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, the back cover 11 is a linear structure formed by folding and sewing along the bottom end of the bag body 1, and when the two folding edges 12 are unfolded, the bottom ends of the two sidelines 120 of each folding edge 12 are all correspondingly overlapped with one end of the back cover 11. After the bottom end of the bag body 1 is transversely folded and overlapped, the overlapped surface is sewed by the sewing thread 110, the processing is simple, the production cost is low, and the reliability is strong.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 or fig. 3, the packing paper 10 is provided with at least three layers, a plurality of first air holes 102 arranged in an array are provided on the packing paper 10 of the innermost layer, a plurality of second air holes 103 arranged in an array are provided on the packing paper 10 of the middle layer, and the first air holes 102 and the second air holes 103 are distributed in a staggered manner. The first air hole 102 and the second air hole 103 can exhaust air in the filling process, so that air expansion in the sealing process of the bag body 1 is avoided, and the first air hole and the second air hole are distributed in a staggered mode to avoid material leakage.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 or fig. 3, the aperture of the first air hole 102 is larger than the aperture of the second air hole 103, and the arrangement density of the first air holes 102 is lower than the arrangement density of the second air holes 103.

In the filling process, air is firstly discharged into the 10 innermost layers of the packaging paper, the first air holes 102 are provided with larger apertures, so that the exhaust efficiency can be improved, the air can be exhausted in time to avoid bag expansion, and the probability of powder leakage through the first air holes 102 can be reduced due to the lower density of the first air holes 102; the aperture of the second air holes 103 is small (based on the fact that the powder cannot penetrate), so that the air permeability is ensured, meanwhile, the powder can be prevented from leaking in a large quantity, the second air holes 103 are arranged in a high-density distribution mode, the air leakage efficiency is guaranteed, and the bag expansion phenomenon in the sealing process is avoided.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, the inner peripheral wall of the mouth of the bag body 1 is provided with a hot melt adhesive tape 13. After the material is filled, the mouth of the bag body 1 can be sealed by heating the hot melt adhesive tape 13, the sealing device is convenient and simple, and the sealing efficiency is high.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An open packaging bag is characterized by comprising a bag body, wherein the top end of the bag body is open, the bottom end of the bag body is closed to form a sealed bottom, two sides of the bag body are respectively provided with a folded edge, and the folded edges are of V-shaped structures which are folded inwards along side lines of the two sides of the bag body; the bag body comprises at least two layers of packaging paper which are sequentially overlapped from inside to outside, wherein the inner surface and/or the outer surface of at least one layer of packaging paper is coated with a biodegradable material coating.

2. The open top package of claim 1, wherein: the biodegradable material coating is coated on the inner surface of the outer layer of the wrapping paper or the inner surface and/or the outer surface of at least one layer of the wrapping paper of the inner layer.

3. The open top package of claim 1, wherein: the back cover is of a rectangular plane structure formed by folding and bonding the bottom end of the bag body, and when the two folding edges are unfolded, the bottom ends of the two side lines of each folding edge are respectively correspondingly superposed with the two corners on one side of the back cover.

4. An open top package according to claim 3 wherein: the outer wall of the back cover is bonded with a patch, and the patch is aligned with the peripheral edge of the back cover.

5. The open top package of claim 1, wherein: the back cover is a linear structure formed by transversely folding and sewing the bottom end of the bag body, and when the two folding edges are unfolded, the bottom ends of the two side lines of each folding edge are correspondingly superposed with one end of the back cover.

6. The open top package of claim 1, wherein: the wrapping paper is equipped with the three-layer at least, and the inlayer be equipped with a plurality of first bleeder vents that the array was arranged on the wrapping paper, the intermediate level be equipped with a plurality of second bleeder vents that the array was arranged on the wrapping paper, just first bleeder vent with the crisscross distribution of second bleeder vent.

7. The open top package of claim 6, wherein: the aperture of the first air hole is larger than that of the second air hole, and the arrangement density of the plurality of first air holes is lower than that of the plurality of second air holes.

8. An open top package according to any of claims 1 to 7 wherein: the internal perisporium of the oral area of the bag body is provided with a hot melt adhesive tape.