Sealed Handle Packaging Bag with Reinforcement Film
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Solution Overview
Problem
Packaging bags with attached handles often break under heavy loads, leading to user discomfort and increased manufacturing costs due to complex processes and material inefficiencies.
Innovation Solution
A packaging bag design featuring a sealed handle section with a reinforcement film and folding section, where the handle is integrated into the bag's structure to prevent breakage and minimize hand irritation, using a continuous supply of packaging sheets and reinforcement films for automated manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate handle is attached to the packaging bag, then the packaging bag becomes easier to carry, but the handle may break due to the load of heavy contents
Solution Approach 1:
The handle is merged with the packaging bag body by forming it as an integral part of the sealed packaging sheet structure. The handle section is created by sealing the packaging sheet to itself, eliminating the need for separate handle attachments and ensuring structural integrity under load.
Solution Approach 2:
A reinforcement film is inserted and fixed between the packaging sheet layers at the handle section, creating a composite structure that combines the flexibility of the packaging sheet with the strength of the reinforcement film, preventing handle breakage under heavy loads.
2Ease of operation
If a separate handle is attached to the packaging bag, then the packaging bag becomes easier to carry, but the manufacturing process becomes more complicated and costly
Solution Approach 1:
The handle formation process is merged with the existing packaging sheet sealing process. The same sealing apparatus used for sealing the packaging bag body is also used to form the handle by sealing the packaging sheet to itself, eliminating the need for separate handle attachment equipment and processes.
Solution Approach 2:
The packaging sheet serves dual purposes: it forms both the packaging bag body and the handle structure. The packaging sheet is sealed to itself to create the handle section, allowing the material to serve both structural and functional purposes without requiring additional components or processes.
3Device complexity
If the handle is positioned close to the rim of the packaging bag, then the structure is simpler, but the handle breaks more easily under load
Solution Approach 1:
A reinforcement film is inserted and fixed between the packaging sheet layers at the handle section, creating a composite structure that combines the flexibility of the packaging sheet with the strength of the reinforcement film, preventing handle breakage under heavy loads.
4Weight of moving object
If the packaging bag is formed of synthetic resin, then the packaging is lightweight and flexible, but the attachment portion weakens and the handle breaks
Solution Approach 1:
A reinforcement film is inserted and fixed between the packaging sheet layers at the handle section, creating a composite structure that combines the flexibility and lightness of the synthetic resin packaging sheet with the strength of the reinforcement film, preventing handle breakage under heavy loads.
Data Source
AI summary
Provided are a packaging bag in which the breakage of a handle or irritation to a user's hand due to a load of the packaging bag when the user moves while gripping the handle in a state in which heavy contents such as grain or the like fills the packaging bag can be minimized by forming a sealed handle at the packaging bag, and a method of manufacturing the same.The packaging bag includes a packaging sheet constituted by a first sheet, and second sheets extending from both sides of the first sheet to be folded in a rear-surface direction of the first sheet so that both ends overlap to be sealed; a reinforcement film inserted and fixed between the first sheet and the second sheets; an upper sealing section sealed so that inner surfaces of the reinforcement film and the packaging sheet adhere to seal an upper section; and a handle section positioned at the upper sealing section and punched to be gripped.