CN216970526U - Valve bag special for containing powder - Google Patents
Valve bag special for containing powder Download PDFInfo
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- CN216970526U CN216970526U CN202121837310.0U CN202121837310U CN216970526U CN 216970526 U CN216970526 U CN 216970526U CN 202121837310 U CN202121837310 U CN 202121837310U CN 216970526 U CN216970526 U CN 216970526U
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- valve port
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Abstract
The utility model provides a special valve port bag for containing powder, which comprises a body and a valve port, wherein the body and the valve port are of a two-layer structure, the outer layer is made of PE materials, and the inner layer is made of non-woven fabrics or woven bags. The outer layer and the inner layer at the valve port are in a heat seal structure. The front and back surfaces of the body are distributed with air-permeable micropores. The utility model has simple structure and low cost, can be formed by high-frequency friction heat seal when powder is filled in the valve bag, has the sealing time of only 0.3-0.5 s and the pressure of 3-4 bar, greatly improves the working efficiency and makes the valve bag possible to contain the powder.
Description
Technical Field
The field belongs to the technical field of packaging bags, and particularly relates to a special valve bag for containing powder.
Background
The powder is usually attached to the inner side of the opening of the packaging bag during packaging, and most of the traditional powder packaging bags adopt a line sealing or box packaging mode, such as titanium dioxide, which is widely applied to the fields of various structural surface coatings, paper coatings, fillers and the like and has large industrial application amount; if the traditional valve bag is adopted for packaging titanium dioxide, the valve port is difficult to be quickly sealed by a high-frequency friction heat seal process during sealing, so that the application of the valve bag in the field of powder is limited.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a special powder valve bag which is simple to operate and low in cost.
The technical scheme adopted by the utility model is as follows: the utility model provides a splendid attire powder special valve port bag, includes body and valve port, body and valve port are two-layer structure, and wherein the skin is the PE material, and the inlayer is non-woven fabrics or braided bag.
Furthermore, the outer layer and the inner layer at the valve opening are in a heat sealing structure.
Furthermore, the front and the back surfaces of the body are distributed with air-permeable micropores.
Furthermore, the outer layers of the bottom and the top of the body are thermally sealed with sealing layers.
The beneficial effects obtained by the utility model are as follows: the utility model has simple structure and low cost, can be formed by high-frequency friction heat seal when powder is filled in the valve bag, has the sealing time of only 0.3-0.5 s and the pressure of 3-4 bar, greatly improves the working efficiency and makes the valve bag possible to contain the powder (titanium dioxide).
Drawings
FIG. 1 is a schematic view of the material structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
wherein, 1 represents the body, 2 represents the valve port, 3 represents the outer layer, and 4 represents the inner layer.
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.
As shown in fig. 1-2, a valve bag dedicated for containing powder comprises a body 1 and a valve port 2, wherein the body 1 and the valve port 2 are of a two-layer structure comprising an outer layer 3 and an inner layer 4, the outer layer 3 is made of PE, and the inner layer 4 is woven by non-woven fabric or PP. The outer layer 3 and the inner layer 4 at the valve port 2 are in a heat seal structure. The front and back surfaces of the body 1 are distributed with air-permeable micropores. The woven bag is. And the outer layers of the bottom and the top of the body 1 are thermally sealed with sealing layers.
When the powder sealing device is used, the powder can be formed by high-frequency friction heat sealing when powder is filled in the valve bag, the sealing time is only 0.3-0.5 s, the pressure is 3-4 bar, and the working efficiency is greatly improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be covered by the scope of the present invention, which is equivalent to or modified from the technical solution of the present invention and the inventive concept thereof.
Claims (1)
1. The utility model provides a splendid attire powder special valve bag, includes body (1) and valve port (2), its characterized in that: the valve body (1) and the valve port (2) are of a two-layer structure and comprise an outer layer (3) and an inner layer (4), wherein the outer layer (3) is made of PE materials, and the inner layer (4) is made of non-woven fabrics;
the outer layer (3) and the inner layer (4) at the valve port (2) are in a heat seal structure;
the outer layers of the bottom and the top of the body (1) are thermally sealed with sealing layers;
the front and back surfaces of the body (1) are distributed with air-permeable micropores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121837310.0U CN216970526U (en) | 2021-08-06 | 2021-08-06 | Valve bag special for containing powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121837310.0U CN216970526U (en) | 2021-08-06 | 2021-08-06 | Valve bag special for containing powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216970526U true CN216970526U (en) | 2022-07-15 |
Family
ID=82337263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121837310.0U Active CN216970526U (en) | 2021-08-06 | 2021-08-06 | Valve bag special for containing powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216970526U (en) |
-
2021
- 2021-08-06 CN CN202121837310.0U patent/CN216970526U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |