Paper Bag Easy Tearing Structure for Food Access
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Solution Overview
Problem
Conventional food paper bags are inconvenient and unsightly when trying to access food, as they require pushing the bag contents upwards, potentially damaging the food and causing hand contamination with oil during extraction.
Innovation Solution
A paper bag design with a first and second bag body part, featuring side expansion, inner coating layers, and strategically placed tearing lines to facilitate easy tearing and prevent oil contamination, along with pinholes for steam release to maintain food quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If food is accessed by pushing it up from the bottom of the bag, then food can be reached, but the food may be damaged and its appearance deteriorates
Solution Approach 1:
The bag body is divided into multiple sections with tearing lines at different heights, allowing the bag to be segmented into usable portions. Users can tear the bag at the appropriate height to access food without pushing it up, thereby preserving food appearance while maintaining ease of access.
Solution Approach 2:
Tearing lines are pre-marked on the bag body at optimal heights. Users can easily tear along these pre-marked lines to create an opening at the appropriate height, eliminating the need to push food up and preventing damage to the food appearance.
2Ease of operation
If hands are used to extract food from the bag, then food can be taken out, but hands become contaminated with oil
Solution Approach 1:
The bag is segmented into an upper removable portion and a lower retained portion using tearing lines. Users can tear and remove the upper portion containing the food, allowing extraction without direct hand contact with the food or oil, thus preventing contamination while maintaining ease of operation.
Solution Approach 2:
The upper portion of the bag containing the food is extracted as a separate unit by tearing along the pre-marked lines. This allows the food to be accessed and removed without hands needing to reach into the oily interior of the bag, preventing hand contamination while preserving ease of food extraction.
3Ease of operation
If the bag structure is simplified for easy use, then convenience is improved, but functionality and versatility are reduced
Solution Approach 1:
The bag body is segmented into multiple sections with tearing lines at different heights, creating multiple usable configurations. Users can tear at different heights depending on the food type and quantity, providing versatility. The segmentation also enables easy one-handed operation, maintaining convenience while enhancing functionality.
Solution Approach 2:
The bag design with multiple tearing lines at different heights provides universal applicability for various food types and portions. The same bag structure can be adapted for different uses by tearing at appropriate heights, enhancing versatility without complicating the basic easy-to-tear design, thus maintaining convenience.
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 design allows for convenient access to food without damaging it and prevents hand contamination, enhancing user experience and practicality by allowing the lower part of the bag to be opened for easy eating while maintaining food quality.
Implementation Method 1
the opposite inner surfaces of the first bag body part and the second bag body part are respectively provided with a first coating layer and a second coating layer
Implementation Method 2
The steam of the food can be released through the first and second pinholes in the bag body, so as to prevent the water droplets produced by the condensation of the steam from affecting the taste of the food
Data Source
AI summary
A paper bag with an easy-to-tear structure, the bag body is provided with a first and second bag body parts, and the opposite inner surfaces of the first bag body part and the second bag body part There are respectively a first tear line and a second tear line opposite to each other. By eating the food above the body of the bag, the first bag body part and the second bag body part are torn off relative to the first tear line and the second tear line, so that the lower part of the food can be relatively positioned on the bag body. The opening position is convenient for the user to eat, and it can avoid the hand being stained with oil when the food is drawn upward, so as to achieve the effect of good structure, function and convenience of use.