Flexible packaging container for high-purity chemicals
Through the flexible inner and outer shell design and interface structure, the problems of high packaging costs of rigid materials and large space occupation are solved, and flexible packaging containers with low cost and efficient transportation are achieved.
Patent Information
- Application Number
- CN202421823160.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The production cost of chemical solvent outer packaging of existing rigid materials is high and takes up a large space.
It adopts a flexible inner shell and outer shell design. The inner shell is used to hold chemical solvents. The outer shell is filled with air. The volume and shape vary with the amount of solvent. Combined with the joint and interface structure, it is easy to use and transport.
Reduce production costs, reduce space occupied, facilitate the storage and discharge of chemical solvents, and improve transportation efficiency.
Smart Images
Figure CN223174679U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a relatively wide technical field, in particular to a flexible packaging container for high-purity chemicals. Background Art
[0002] Photoresist plays a very important role in semiconductor manufacturing and is mainly used in chip manufacturing and laser etching. Photoresist is a key core material in the photolithography process, and its quality can directly determine the performance and yield of IC products. As wafer foundry enters advanced processes, the required photoresist resolution is improved and the application of multiple patterning technology will drive the cost proportion and long-term scale of photoresist to continue to rise. Generally speaking, chemical solvents required in the production process of industrial products (for example: photoresist liquid) are stored in specific liquid barrels to prevent the liquid barrels from being corroded by the liquid or damaged by external forces and leaking. At present, the outer packaging of chemical solvents uses rigid materials such as stainless steel, which has a high production cost. In addition, since the outer packaging of rigid materials is not easily squeezed and deformed, it takes up a lot of space during transportation. Utility Model Content
[0003] The technical problem to be solved by the present invention is: in order to solve the technical problems that the existing rigid material outer packaging of chemical solvents has high production costs and occupies a large space, the present invention provides a flexible packaging container for high-purity chemicals, which can reduce production costs and reduce occupied space by improving the outer packaging of chemical solvents.
[0004] The technical solution adopted by the present invention to solve its technical problems is: a flexible packaging container for high-purity chemicals, comprising: a flexible inner shell and a flexible outer shell, the flexible inner shell having a first chamber formed therein, the first chamber being used to contain a chemical solvent, the flexible outer shell being sleeved on the outside of the flexible inner shell, the flexible outer shell having a second chamber formed therein and located outside the flexible inner shell, the second chamber being filled with air; wherein: when the second chamber is in a deflated state, the first chamber is filled with the chemical solvent; when the second chamber is in a full state, the first chamber is not filled with the chemical solvent.
[0005] Therefore, the outer shell is designed to be flexible. Compared with the design method of designing the outer shell with rigid materials such as stainless steel, this method has a simple structure and is easy to use. The volume of the entire flexible packaging container will change with the change of the amount of chemical solvent contained, and the shape of the entire flexible packaging container will change with the change of the placement state, which can reduce production costs and reduce occupied space.
[0006] Furthermore, it also includes: a joint, the flexible inner shell is connected to the joint, and the flexible outer shell is connected to the joint.
[0007] Further, the joint is provided with a first interface, and the first chamber is in communication with the first interface.
[0008] Further, the first interface is provided with a sealing cover, and the sealing cover is connected to the joint.
[0009] Further, a bottom inserting tube is provided on one side of the joint away from the sealing cover. The bottom inserting tube is connected to the joint, is in communication with the first interface, and is inserted into the first chamber. Thus, it is convenient for the storage and discharge of chemical solvents.
[0010] Further, the joint is further provided with a second interface, and the second chamber is in communication with the second interface. Thus, through the mutual cooperation of the first interface, the sealing cover and the second interface, the storage and discharge of chemical solvents can be realized.
[0011] Further, the flexible outer shell is further provided with a carrying handle. Thus, it is convenient to carry and further convenient for the transportation of chemical solvents.
[0012] Further, the flexible inner shell is made of PFA material or PE material, and the flexible outer shell is made of PFA material or PE material.
[0013] Further, the thickness of the flexible inner shell is 0.5 mm - 2 mm, and the thickness of the flexible outer shell is 0.5 mm - 2 mm.
[0014] Further, when the first chamber is in a full state, the distance d between the side of the bottom inserting tube away from the joint and the flexible inner shell is 5 mm. Thus, this distance is neither too long nor too short. If it is too long, it will cause damage to the flexible inner shell (damage caused by bruising) during the shaking of the entire flexible packaging container. If it is too short, it is not conducive to the subsequent discharge of chemical solvents, and too much chemical solvent will remain in the first chamber, resulting in waste.
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0016] The outer shell is designed in a flexible manner. Compared with the design method of using rigid materials such as stainless steel for the outer shell, this method has a simple structure and is convenient to use. The volume of the entire flexible packaging container will change with the change of the amount of chemical solvent stored, and the shape of the entire flexible packaging container will change with the change of the placement state, which can reduce production costs and reduce the occupied space. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0018] Figure 1Schematic diagram of the structure of the flexible packaging container for high-purity chemicals of the present utility model.
[0019] In the figure: 1. Flexible inner shell; 101. First chamber; 2. Flexible outer shell; 201. Second chamber; 202. Carrying handle; 3. Connector; 301. First interface; 3011. Sealing cover; 302. Inserted bottom pipe; 303. Second interface. Detailed implementation manners
[0020] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.
[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.
[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0023] As Figure 1As shown, this is the optimal embodiment of the present utility model. The flexible packaging container for high-purity chemicals in this embodiment includes a flexible inner shell 1 and a flexible outer shell 2. A first chamber 101 is provided inside the flexible inner shell 1, and the first chamber 101 is used to contain chemical solvents. The flexible outer shell 2 is sleeved outside the flexible inner shell 1, and a second chamber 201 is provided inside the flexible outer shell 2 and outside the flexible inner shell 1, and the second chamber 201 is filled with air. Among them: when the second chamber 201 is in a deflated state, the first chamber 101 is filled with chemical solvents; when the second chamber 201 is in a full state, there is no chemical solvent in the first chamber 101. Thus, the outer shell is designed in a flexible manner. Compared with the design method of using rigid materials such as stainless steel for the outer shell, this method has a simple structure and is convenient to use. The volume of the entire flexible packaging container will change with the change in the amount of chemical solvents contained, and the shape of the entire flexible packaging container will change with the change in the placement state, which can reduce production costs and reduce the occupied space.
[0024] In other words, since both the flexible outer shell 2 and the flexible inner shell 1 can deform, while the outer shell of rigid materials such as stainless steel cannot change its shape after production, therefore, during use, the volume and shape of the entire flexible packaging container can change at any time. In this way, the occupied space can be reduced (that is, the volume occupied is determined by the amount of chemical solvents contained, while the volume of the outer shell container of rigid materials such as stainless steel cannot be changed, so a large amount of space will be occupied).
[0025] In other words, compared with the outer shell of rigid materials such as stainless steel, the flexible outer shell 2 has a low production cost. Thus, the production cost of the entire flexible packaging container can be reduced.
[0026] Specifically, the double-layer design (that is, the flexible outer shell 2 and the flexible inner shell 1) can protect the flexible inner shell 1, thereby reducing the safety risk.
[0027] Specifically, as Figure 1 shown, a narrow channel is provided in the second chamber 201. Through this design method of the narrow channel, the air flow rate in the second chamber 201 can be increased. Thus, the filling and discharging rates of chemical solvents can be increased.
[0028] In this embodiment, the flexible inner shell 1 is made of PFA material (fluororesin, Fluoroplastie) or PE material (polyethylene, Polyethylene), the thickness of the flexible inner shell 1 is 0.5 mm - 2 mm, the flexible outer shell 2 is made of PFA material or PE material, and the thickness of the flexible outer shell 2 is 0.5 mm - 2 mm.
[0029] In this embodiment, the flexible outer shell 2 is further provided with a carrying handle 202. Thus, it is convenient to carry, and further convenient for the transportation of chemical solvents.
[0030] In this embodiment, it further includes: a connector 3, the flexible inner shell 1 is connected to the connector 3, and the flexible outer shell 2 is connected to the connector 3; the connector 3 is provided with a first interface 301 and a second interface 303, the first chamber 101 is communicated with the first interface 301, the second chamber 201 is communicated with the second interface 303, the first interface 301 is provided with a sealing cover 3011, and the sealing cover 3011 is connected to the connector 3; on the side of the connector 3 away from the sealing cover 3011, there is an inserted bottom tube 302, the inserted bottom tube 302 is connected to the connector 3, the inserted bottom tube 302 is communicated with the first interface 301, and the inserted bottom tube 302 is inserted into the first chamber 101. Thus, the inserted bottom tube 302 can facilitate the loading and discharging of chemical solvents; through the mutual cooperation of the first interface 301, the sealing cover 3011 and the second interface 303, the loading and discharging of chemical solvents can be realized.
[0031] Specifically, during the process of loading or discharging chemical solvents, the first interface 301 is in a conducting state, and at other times, the first interface 301 is in a closed state through the sealing cover 3011 to ensure that the chemical solvents in the first chamber 101 do not flow out; the second interface 303 is always in an open state to enable the volume and shape of the entire flexible packaging container to change at any time.
[0032] Specifically, the first interface 301 adopts an NPT structure (National Pipe Thread, a pipe thread connection method formulated by the American National Standards), an NPS structure (National Pipe Size or National Pipe Straight, one of the North American pipe size standard systems for high and low pressures and temperatures), or a VCO structure (a special thread connection method provided by Swagelok Company, mainly used in fluid system components, especially in high-pressure, high-purity and applications that require quick connection scenarios).
[0033] In this embodiment, when the first chamber 101 is in a full state, the distance d between the side of the inserted bottom tube 302 away from the connector 3 and the flexible inner shell 1 is 5 mm. Thus, this distance is neither too long nor too short. If it is too long, it will cause damage to the flexible inner shell 1 (damage caused by bruising) during the shaking of the entire flexible packaging container. If it is too short, it is not conducive to the subsequent discharge of chemical solvents, and too much chemical solvent will remain in the first chamber 101, resulting in waste.
[0034] The process of filling the chemical solvent of the present utility model is as follows: First, open the sealing cover 3011, and connect the connector 3 (the connector 3 of the chemical solvent storage container, not shown in the figure) to the first interface 301; then, the chemical solvent flows from the storage container into the first chamber 101 (flows into the first chamber 101 through the bottom inserting pipe 302), and is stored in the first chamber 101; finally, pull out the connector 3 from the first interface 301, and close the sealing cover 3011.
[0035] The process of discharging the chemical solvent of the present utility model is as follows: First, connect the second interface 303 to an air pump (not shown in the figure, or other air charging and discharging devices); then, open the sealing cover 3011, start the air pump, inject air into the second chamber 201 through the air pump, so that the volume of the second chamber 201 increases, and gradually compresses the first chamber 101; finally, the chemical solvent in the first chamber 101 is discharged through the bottom inserting pipe 302. After the discharging process of the chemical solvent is completed, close the sealing cover 3011, turn off the air pump, and remove the air pump from the second interface 303.
[0036] In summary, the present utility model designs the outer shell in a flexible manner. Compared with the design method of using rigid materials such as stainless steel for the outer shell, this method has a simple structure and is convenient to use. The volume of the entire flexible packaging container will change with the change of the amount of chemical solvent filled, and the shape of the entire flexible packaging container will change with the change of the placement state, which can reduce production costs and reduce the occupied space.
[0037] The above is based on the ideal embodiments of the present utility model as inspiration. Through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A flexible packaging container for high-purity chemicals, characterized in that, Comprising: A flexible inner housing (1), within which a first chamber (101) is formed for containing a chemical solvent. A flexible outer housing (2) sleeved outside the flexible inner housing (1), and a second chamber (201) is formed inside the flexible outer housing (2) and outside the flexible inner housing (1), and the second chamber (201) is filled with air. Wherein: When the second chamber (201) is in a deflated state, the first chamber (101) is filled with the chemical solvent. When the second chamber (201) is in a full state, there is no chemical solvent in the first chamber (101).
2. The flexible packaging container for high-purity chemicals according to claim 1, characterized in that, Further comprising: A connector (3), the flexible inner housing (1) is connected to the connector (3), and the flexible outer housing (2) is connected to the connector (3).
3. The flexible packaging container for high-purity chemicals according to claim 2, characterized in that, The connector (3) is provided with a first interface (301), and the first chamber (101) is in communication with the first interface (301).
4. The flexible packaging container for high-purity chemicals according to claim 3, wherein A sealing cover (3011) is arranged at the first interface (301), and the sealing cover (3011) is connected to the connector (3).
5. The flexible packaging container for high-purity chemicals according to claim 4, wherein On one side of the connector (3) away from the sealing cover (3011), an inserting bottom tube (302) is provided, the inserting bottom tube (302) is connected to the connector (3), the inserting bottom tube (302) is in communication with the first interface (301), and the inserting bottom tube (302) is inserted into the first chamber (101).
6. The flexible packaging container for high-purity chemicals according to claim 2, wherein, The connector (3) is further provided with a second interface (303), and the second chamber (201) is in communication with the second interface (303).
7. The flexible packaging container for high-purity chemicals according to claim 1, wherein The flexible outer housing (2) is further provided with a carrying handle (202).
8. The flexible packaging container for high-purity chemicals according to claim 1, characterized in that, The flexible inner housing (1) is made of PFA material or PE material, and the flexible outer housing (2) is made of PFA material or PE material.
9. The flexible packaging container for high-purity chemicals according to claim 1, wherein The thickness of the flexible inner housing (1) is 0.5 mm - 2 mm, and the thickness of the flexible outer housing (2) is 0.5 mm - 2 mm.
10. The flexible packaging container for high-purity chemicals according to claim 5, characterized in that, When the first chamber (101) is in a full state, the distance d between the side of the inserting bottom tube (302) away from the connector (3) and the flexible inner housing (1) is 5 mm.