Paper Carry Out Bag Handles Reinforced with Patches
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Solution Overview
Problem
Paper carry out bags with handles frequently rip, leading to unnecessary waste and the practice of double-bagging, which increases landfill waste and makes handling cumbersome.
Innovation Solution
Attaching paper handles to the outside or inside surface of paper carry out bags with a single or double paper patch for reinforcement, preventing the handles from easily ripping or detaching, and allowing them to be in either upward or downward positions for improved usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If paper handles are attached to the bag without reinforcement, then the bag structure remains simple and manufacturing cost is low, but the handles frequently rip from the bag
Solution Approach 1:
A paper patch is introduced as an intermediary component between the handle and the bag body. The patch serves as a mediator that distributes the stress and prevents the handle from ripping directly off the bag, thereby improving attachment reliability without fundamentally changing the bag structure.
Solution Approach 2:
The solution combines multiple materials (paper handle, paper patch, and bag material) into a composite structure. The layered composite construction of handle+patch+bag provides enhanced strength and reliability at the attachment point while maintaining overall structural simplicity.
2Ease of operation
If paper handles are attached to the outside surface of the bag, then the handles are easily accessible, but the handles are more prone to ripping from the bag
Solution Approach 1:
The paper patch acts as an intermediary reinforcement layer that enables outside-surface attachment while preventing ripping. It mediates between the accessibility benefit of outside attachment and the reliability concern by providing additional bonding surface area and stress distribution.
3Strength
If a single paper patch is used to reinforce the handles, then the manufacturing process remains simple and cost-effective, but the reinforcement strength is limited
Solution Approach 1:
The reinforcement system is segmented into discrete patch components that can be applied individually. The patch is divided into specific zones (front patch, back patch, side patches) that can be selectively applied based on strength requirements, allowing scalable reinforcement without overwhelming complexity.
Solution Approach 2:
The patent provides options for partial reinforcement (single patch) or excessive reinforcement (double patch with multiple layers). This allows the manufacturer to apply just enough reinforcement for the intended use case, avoiding unnecessary complexity while providing the capability for enhanced strength when needed.
Data Source
AI summary
A paper carry out bag that has handles attached to the outside or inside surface of the bag. Patches comprised of paper affix the handles to the surface of the bag to make the handles stronger so that the handles will not easily rip from the bag.