Powder and particle material packaging bag

Abstract

The utility model discloses a powder and particle material packaging bag which comprises a first bag piece and a second bag piece, the first bag piece and the second bag piece are matched together to form a bag body, the bag body is provided with a bottom hot bonding part and side hot bonding parts, the bag body is provided with a bag opening, the side hot bonding parts are arranged on the two sides of the bag opening, and the side hot bonding parts are arranged on the two sides of the bag opening. The bag body is provided with a bag opening, two flow guide bonding parts are arranged in the bag body, the flow guide bonding parts are located at the bag opening, an isosceles trapezoid channel is formed between the two flow guide bonding parts, and the narrow opening end of the isosceles trapezoid channel is located on the side close to the bag opening. Compared with the prior art, the packaging bag has the following beneficial effects that the two flow guide bonding parts are arranged in the bag body, the isosceles trapezoid channel is formed by the two flow guide bonding parts, flow guide is conducted through the isosceles trapezoid channel, and the pouring-out amount when powder is poured out is conveniently controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of packaging material especially relates to a powder and particle packing bag. BACKGROUND

[0002] At present, the powder and particle material is usually packaged by flexible packaging bag, and the powder and particle packing bag disclosed in the patent publication document CN106628551A has a problem in use, that is, the powder and particle packing bag of this structure does not have a corresponding discharging structure at the bag opening, so the packaging bag of this structure is not easy to control the discharging amount of the powder when pouring after tearing the bag opening. UTILITY MODEL CONTENT

[0003] In view of the above problems, the utility model provides a powder and particle packing bag, two flow guide adhesive parts are arranged in the bag body, an isosceles trapezoidal channel is formed by the two flow guide adhesive parts, and the isosceles trapezoidal channel is used for flow guiding, so that the discharging amount of the powder can be controlled when pouring.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A powder and particle packing bag, comprising a first bag piece and a second bag piece, the first bag piece and the second bag piece are combined together to form a bag body, the bag body has a bottom heat adhesive part and a side heat adhesive part, the bag body has a bag opening, the two sides of the bag opening are the side heat adhesive parts, a flow guide adhesive part is arranged in the bag body, and the flow guide adhesive part is located at the bag opening, the flow guide adhesive part has two, an isosceles trapezoidal channel is formed between the two flow guide adhesive parts, and the narrow opening end of the isosceles trapezoidal channel is located on one side close to the bag opening.

[0006] In the packaging bag, the whole packaging bag is formed by the heat adhesive combination of the first bag piece and the second bag piece, the side heat adhesive parts are formed at the two edges, the bottom heat adhesive part is formed at the bottom, the two flow guide adhesive parts are formed by the adhesive combination of the partial areas between the two side heat adhesive parts, the isosceles trapezoidal channel is formed between the two flow guide adhesive parts, the narrow opening end of the isosceles trapezoidal channel is located on one side close to the bag opening, the flow guide structure is formed by the isosceles trapezoidal channel, and the powder material in the bag body flows out through the flow guide structure, and the discharging amount of the powder can be controlled in the pouring process.

[0007] In summary, in the packaging bag, two flow guide adhesive parts are arranged in the bag body, an isosceles trapezoidal channel is formed by the two flow guide adhesive parts, and the isosceles trapezoidal channel is used for flow guiding, so that the discharging amount of the powder can be controlled when pouring.

[0008] When the packaging bag is used for packaging materials, the materials are first poured into the bag body by means of a hopper or other tools, and then the bag opening is closed.

[0009] Optionally, the flow guide adhesive part is a right-angled trapezoidal flow guide adhesive part.

[0010] The right-angled side of the flow guide adhesive part is connected with the side heat adhesive part.

[0011] Optionally, a sealing clamp chain is arranged in the bag body, and the sealing clamp chain is located between the bag bottom of the bag body and the flow guide adhesive part.

[0012] The sealing clamp chain is arranged, and the sealing clamp chain is located between the bottom of the bag body and the flow guide adhesive part, so as to facilitate sealing of the bag body when the opening needs to be sealed again.

[0013] Optionally, a breaking belt is arranged on the side heat adhesive part, and the breaking belt is located between the flow guide adhesive part and the sealing clamp chain.

[0014] Because the powder in the packaging bag can be used to package other objects after being used up, but the existence of the isosceles trapezoidal channel makes the packaging bag unable to be used to package bulky objects. In order to make the whole packaging bag be able to be used to package bulky objects, a breaking belt is arranged on the side heat adhesive part, and an opening can be torn between the flow guide adhesive part and the sealing clamp chain along the breaking belt. The size of the opening is the size of the original bag opening. The flow guide adhesive part on one side of the opening is directly discarded and no longer used, and the area between the opening and the bag bottom part is directly used.

[0015] Optionally, the first bag piece includes a paper layer, an aluminized PET layer and a PP woven cloth layer, and the aluminized PET layer is arranged between the PP woven cloth layer and the paper layer.

[0016] Optionally, a first EVA adhesive layer and a second EVA adhesive layer are further included, and the thicknesses of the first EVA adhesive layer and the second EVA adhesive layer are both 20 um.

[0017] Specifically, the first bag piece and the second bag piece are bag pieces of the same type. The bag piece is composed of a paper layer, an aluminized PET layer and a PP woven cloth layer, and is compounded by using an EVA adhesive layer. In this way, the whole bag piece can have good sealing performance and barrier property, and has certain puncture resistance.

[0018] Optionally, the thickness of the paper layer is 65 um, the thickness of the aluminized PET layer is 12 um, and the thickness of the PP woven cloth layer is 50 um.

[0019] Optionally, the structure of the second bag piece is the same as that of the first bag piece.

[0020] The PP woven cloth layers on the first bag piece and the second bag piece are used for mutual heat adhesion.

[0021] The utility model discloses a beneficial effect is: through setting up two flow guide adhesive parts in the bag body, utilize two flow guide adhesive parts to form the isosceles trapezoidal channel, utilize the isosceles trapezoidal channel to guide flow, and it is convenient to control the pouring amount when pouring powder. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0023] Figure 1 It is the structural schematic diagram of powder and particle packaging bag;

[0024] Figure 2 It is the area schematic diagram of each bag piece needing to be heat bonded;

[0025] Figure 3 It is the structural schematic diagram of the first bag piece.

[0026] The various reference signs in the drawings are: 101, side heat bonding part;1011, fracture zone;102, bottom heat bonding part;103, flow guide adhesive part;104, channel;2, sealing clamp chain;11, paper layer;12, first EVA adhesive layer;13, aluminized PET layer;14, second EVA adhesive layer;15, PP woven cloth layer. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious and easy to understand, the specific implementation of the utility model will be described in detail below with reference to the drawings.

[0028] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore, the utility model is not limited by the specific implementation disclosed below.

[0029] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] As attached Figure 1 Appendix Figure 2 and appendix Figure 3 As shown, a powder / granule packaging bag includes a first bag sheet and a second bag sheet, which are joined together to form a bag body. The bag body has a bottom heat-bonding portion 102 and a side heat-bonding portion 101. The bag body has a bag opening, with side heat-bonding portions 101 on both sides of the bag opening. A flow-guiding adhesive portion 103 is provided inside the bag body, and the flow-guiding adhesive portion 103 is located at the bag opening. There are two flow-guiding adhesive portions 103, and an isosceles trapezoidal channel 104 is formed between the two flow-guiding adhesive portions 103. The narrow end of the isosceles trapezoidal channel 104 is located on the side closer to the bag opening.

[0031] In this type of packaging bag, the entire packaging bag is formed by thermally bonding a first bag sheet and a second bag sheet together. Side thermal bonding portions 101 are formed at the two edges, and bottom thermal bonding portions 102 are formed at the bottom. A portion of the area between the two side thermal bonding portions 101 is bonded together to form two flow guiding bonding portions 103. An isosceles trapezoidal channel 104 is formed between the two flow guiding bonding portions 103, and the narrow end of the isosceles trapezoidal channel 104 is located on the side near the bag opening. The isosceles trapezoidal channel 104 forms a flow guiding structure, and the powder material inside the bag flows out through the flow guiding structure. The amount of powder poured out can be controlled during this pouring process.

[0032] In summary, this type of packaging bag has two flow-guiding adhesive parts 103 inside the bag body, which form an isosceles trapezoidal channel 104. The flow is guided by the isosceles trapezoidal channel 104, which facilitates control of the amount of powder poured out.

[0033] When sealing materials, this type of packaging bag first uses tools such as hoppers to pour the materials into the bag, and then seals the bag opening.

[0034] As attached Figure 1 Appendix Figure 2 and appendixFigure 3 As shown in the drawings, the flow guide adhesive part 103 is a right-angled trapezoidal flow guide adhesive part 103.

[0035] The right-angled side of the flow guide adhesive part 103 is connected with the side heat adhesive part 101.

[0036] As shown in the drawings of Figure 1 , the drawings of Figure 2 and the drawings of Figure 3 , a sealing clamp chain 2 is arranged in the bag body, and the sealing clamp chain 2 is located between the bag bottom of the bag body and the flow guide adhesive part 103.

[0037] The sealing clamp chain 2 is arranged, and the sealing clamp chain 2 is located between the bottom of the bag body and the flow guide adhesive part 103, so as to facilitate the sealing of the bag body when it needs to be sealed again after opening.

[0038] As shown in the drawings of Figure 1 , the drawings of Figure 2 and the drawings of Figure 3 , a fracture zone 1011 is arranged on the side heat adhesive part 101, and the fracture zone 1011 is located between the flow guide adhesive part 103 and the sealing clamp chain 2.

[0039] Because the powder in the packaging bag can be used to package other objects after being used up, but the existence of the isosceles trapezoidal channel 104 makes the packaging bag unable to be used to package bulk objects. In order to make the whole packaging bag be able to be used to package bulk objects, the fracture zone 1011 is arranged on the side heat adhesive part 101, and an opening can be torn between the flow guide adhesive part 103 and the sealing clamp chain 2 along the fracture zone 1011. The size of the opening is the size of the original bag opening, and the flow guide adhesive part 103 on one side of the opening is directly discarded and no longer used, and the area between the opening and the bag bottom part is directly used.

[0040] As shown in the drawings of Figure 1 , the drawings of Figure 2 and the drawings of Figure 3 , the first bag piece includes a paper layer 11, an aluminized PET layer 13 and a PP woven cloth layer 15, and the aluminized PET layer 13 is arranged between the PP woven cloth layer 15 and the paper layer 11.

[0041] As shown in the drawings of Figure 1 , the drawings of Figure 2 and the drawings of Figure 3 , a first EVA adhesive layer 12 and a second EVA adhesive layer 14 are further included, and the thicknesses of the first EVA adhesive layer 12 and the second EVA adhesive layer 14 are both 20um.

[0042] The first bag piece and the second bag piece are the same type of bag piece, the bag piece is composed of the paper layer 11, the aluminized PET layer 13 and the PP woven cloth layer 15, and is composed by the EVA adhesive layer, so that the whole bag piece has good sealing performance and barrier property, and has certain puncture resistance.

[0043] As shown in the accompanying drawings Figure 1 , the accompanying drawings Figure 2 and the accompanying drawings Figure 3 , the thickness of the paper layer 11 is 65um, the thickness of the aluminized PET layer 13 is 12um, and the thickness of the PP woven cloth layer 15 is 50um.

[0044] As shown in the accompanying drawings Figure 1 , the accompanying drawings Figure 2 , the accompanying drawings Figure 3 , the structure of the second bag piece is the same as that of the first bag piece.

[0045] The PP woven cloth layer 15 on the first bag piece and the second bag piece is used for mutual thermal bonding.

[0046] The above-mentioned embodiments only express part of the embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for those skilled in the art, the technical solutions recorded in the above-mentioned embodiments can still be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A powder / granule packaging bag, comprising a first bag sheet and a second bag sheet, the first bag sheet and the second bag sheet being joined together to form a bag body, the bag body having a bottom heat-sealing portion and a side heat-sealing portion, the bag body having a bag opening, the two sides of the bag opening being side heat-sealing portions, characterized in that, The bag body is provided with a flow guiding adhesive part, and the flow guiding adhesive part is located at the bag opening. There are two flow guiding adhesive parts, and an isosceles trapezoidal channel is formed between the two flow guiding adhesive parts. The narrow end of the isosceles trapezoidal channel is located on the side closer to the bag opening. The bag body is provided with a sealing chain, and the sealing chain is located between the bottom of the bag body and the flow guiding adhesive part; A fracture zone is provided on the side heat-bonded part, and the fracture zone is located between the flow-guiding adhesive part and the sealing clamp.

2. The powder / granule packaging bag according to claim 1, characterized in that, The flow guiding adhesive part is a right-angled trapezoidal flow guiding adhesive part.

3. The powder / granule packaging bag according to claim 1, characterized in that, The first bag sheet includes a paper layer, an aluminized PET layer, and a PP woven fabric layer, wherein the aluminized PET layer is disposed between the PP woven fabric layer and the paper layer.

4. A powder / granule packaging bag according to claim 3, characterized in that, It also includes a first EVA adhesive layer and a second EVA adhesive layer, both of which have a thickness of 20 μm.

5. A powder / granule packaging bag according to claim 3, characterized in that, The thickness of the paper layer is 65µm, the thickness of the aluminized PET layer is 12µm, and the thickness of the PP woven fabric layer is 50µm.

6. A powder / granule packaging bag according to claim 3, characterized in that, The structure of the second bag is the same as that of the first bag.

Images