Extraction Bag Thread Layout for Complete Tea Drainage
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Solution Overview
Problem
Existing extraction bags for tea leaves or similar materials face challenges in complete drainage and efficient packaging, leading to inconvenient disposal and unnecessary loss of flavorful extract due to residual water, and are not compatible with conventional form-fill-sealing machines.
Innovation Solution
A three-dimensionally formed extraction bag with a triangular pyramid shape, featuring integrated cover material and point sealing portions, and two hanging threads that are sealed within the bag body, allowing for complete squeezing and packaging using a conventional form-fill-sealing machine by tracing specific paths to facilitate efficient drainage and packaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a conventional extraction bag with a single hanging thread is used, then the bag can be easily held and disposed of, but the bag body cannot be sufficiently squeezed to drain all water, resulting in loss of flavorful extract
Solution Approach 1:
The single hanging thread is segmented into two separate hanging threads with different configurations. The first hanging thread has a U-shaped configuration that allows squeezing from one direction, while the second hanging thread has an S-shaped configuration that enables squeezing from another direction. This segmentation allows comprehensive squeezing of the bag body from multiple directions, ensuring complete drainage of water and extract without loss.
2Productivity
If the hanging thread is held inside the bag body and extrudes from the outside, then both ends can be pulled to squeeze tea leaves for drainage, but conventional form-fill-sealing machines cannot be used for package filling
Solution Approach 1:
The hanging threads are extracted from the bag body interior and repositioned to be held outside the bag body. The base end sealing portions of both hanging threads are sealed to the bag body, while the free end sides extend outward. This extraction allows the hanging threads to function as external handles for squeezing while maintaining compatibility with conventional form-fill-sealing machines, as the threads do not interfere with the sealing process.
3Strength
If the hanging thread base end is sealed to the bag body, then the thread provides stable support for squeezing, but water remains in the bag body and cannot be sufficiently drained
Solution Approach 1:
The hanging threads are configured with dynamic U-shaped and S-shaped paths that allow the bag body to be squeezed from multiple directions. The U-shaped first hanging thread enables squeezing from one direction, while the S-shaped second hanging thread enables squeezing from another direction. This dynamic configuration ensures that water is completely drained from the bag body while maintaining stable support during the squeezing process.
4Loss of substance
If hand is placed under the bag body to catch drips during disposal, then water loss is prevented, but the hand becomes dirty and the process is inconvenient
Solution Approach 1:
The extraction bag is designed with two hanging threads that enable the bag body to be completely squeezed and drained by itself during disposal. By pulling the free end sides of both hanging threads in opposite directions, the bag body is squeezed from multiple directions, ensuring all water is drained into the cup without needing to catch drips with the hand. This self-service mechanism maintains water retention while keeping the disposal process clean and convenient.
Data Source
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AI summary
Disclosed is an extraction bag which can be manufactured by a bag manufacture process on a conventional extraction bag manufacturing device, and the body of which can be squeezed using hanging threads. A portion of a sheet body is folded back, and point seals (29, 31) are provided in the folded-back area. Two hanging threads (35, 43) are attached with the point seals (29, 31) as supporting points. Then, when the hanging threads (35, 43) are pulled in opposite directions, one hanging thread (35) to the right and the other hanging thread (43) to the left, the direction of the one hanging thread (35) is guided during pulling by the point seals (29, 31) and the end (26) of an edge seal (25) as supporting points, and the direction of the other hanging thread (43) of a tag-attached hanging thread (41) is guided during pulling by the point seals (31, 29) and the end (24) of an edge seal (23) as supporting points. By this means, the point seals (29, 31) are first pulled towards one another and then the base seals of the threads are also pulled towards one another, thereby squeezing the bag body (3) from three dimensional directions.