Extensible Paper Bag Structure for Bag Holder Compatibility
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Solution Overview
Problem
Current paper bags are inconvenient for consumers and retailers, requiring more space for storage, frequent replenishment, and are less elastic, often tearing when carrying heavy items, while plastic bags contribute to environmental issues.
Innovation Solution
Design of paper bags with attachment portions configured to engage with conventional bag holders, featuring extensible material, notches for sliding engagement, and handles for easy handling, allowing them to be used with existing plastic bag holders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If paper bags are used instead of plastic bags, then environmental impact is reduced, but convenience and durability are worsened
Solution Approach 1:
The patent applies parameter changes by modifying the physical properties of paper through selective stretching and extending of the paper material in specific directions. This creates an extensible paper bag that can deform elastically to accommodate heavy items and rigid objects, transforming paper from a rigid material to a flexible one that matches plastic bag behavior while maintaining environmental benefits.
Solution Approach 2:
The patent employs composite materials by combining treated paper with elastic components or multi-layer paper structures that provide both biodegradability and elasticity. This composite approach allows the bag to exhibit plastic-like flexibility and durability while retaining the environmental advantages of paper materials.
2Object-affected harmful factors
If paper bags are used instead of plastic bags, then environmental impact is reduced, but strength and durability are worsened
Solution Approach 1:
The patent changes the physical parameters of paper by applying controlled stretching and extending treatments that increase tensile strength and elasticity. The paper is processed to create fibrous networks with improved mechanical properties, allowing it to withstand heavy loads and rigid objects without tearing or deforming permanently.
Solution Approach 2:
The patent uses composite material structures that combine multiple paper layers or treat paper with elastic polymers to create a composite material that exhibits both biodegradability and enhanced strength. This composite approach enables the bag to handle heavy items and resist tearing while maintaining environmental friendliness.
3Object-affected harmful factors
If conventional paper bags are used, then environmental friendliness is improved, but storage space requirements and replenishment frequency are worsened
Solution Approach 1:
The patent applies dynamics by creating a bag structure that can dynamically change its volume and shape through elastic deformation. The extensible paper bag can be compressed to a compact form for storage and then expanded when needed, reducing the permanent storage space required compared to rigid conventional paper bags that must be stored in their full, bulky configuration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The paper bags provide convenience and environmental friendliness by being space-efficient, reducing the need for frequent replenishment, and offering improved durability for carrying heavy items, while minimizing plastic waste.
Implementation Method 1
the paper includes kraft paper, such as an extensible or semi-extensible kraft paper
Data Source
AI summary
The present disclosure includes paper bags and methods for forming paper bags. Some of the bags may include a body, a first attachment portion configured to engage an arm of a bag holder, and a second attachment portion configured to engage another arm of the bag holder. In some aspects, the body defines an opening and includes opposing first and second sides, a first section disposed between the first side and the second side, and a second section disposed between the first and second sides, the second section moveable relative to the first section to define a cavity that is in communication with the opening. The first attachment portion may be closer to the first side of the body than the second side and the second attachment portion may be closer to the second side of the body than the first side.