Stretchable Paper Straw Corrugation for U-Shape Packaging
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Solution Overview
Problem
Current paper straws are not flexible enough to be bent into a u-shape and are prone to collapsing or breaking during manufacturing, making them unsuitable for packaging with beverage containers.
Innovation Solution
A paper straw made from stretchable paper with high tensile strength and extensibility, allowing it to be reversibly bent into a u-shape and packaged with liquid containers, using a machine equipment that forms corrugations in the sidewalls to enhance flexibility and resistance to breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional paper straws are made straight and rigid, then they maintain structural integrity during manufacturing, but they cannot be bent into a u-shape for packaging with beverage containers
Solution Approach 1:
The straw is divided into distinct functional segments: a rigid lower portion for structural integrity and insertion, a flexible intermediate portion with corrugations for bending, and an upper portion for drinking. This segmentation allows different parts to fulfill different requirements - the rigid base maintains strength while the corrugated middle enables u-shape bending.
Solution Approach 2:
The intermediate portion of the straw incorporates corrugated structures formed from thin paper walls, creating a flexible shell that can bend repeatedly without breaking. The corrugations act as flexible elements that allow the straw to be formed into a u-shape while maintaining enough structural integrity to function as a drinking straw.
2Adaptability or versatility
If paper straws are made flexible through scores or material removal, then they can bend slightly, but they collapse or break during manufacturing and cannot be bent into a u-shape
Solution Approach 1:
Different portions of the straw have different structural qualities optimized for their specific functions. The lower portion near the insertion end has higher rigidity and wall thickness for structural integrity during manufacturing and insertion. The intermediate portion has corrugations that provide controlled flexibility for bending into a u-shape. This local differentiation of structural properties allows the straw to achieve both flexibility and reliability.
Solution Approach 2:
The straw utilizes composite construction with multiple paper layers and corrugated structures combined with flat sections. The corrugated portions provide flexibility while the layered paper construction maintains strength. This composite approach allows the straw to resist collapse during manufacturing while enabling repeated bending into curvilinear configurations.
3Length of moving object
If the straw length is made larger than the beverage container, then it enables proper drinking function, but it requires u-shaped configuration for packaging which conventional paper straws cannot achieve
Solution Approach 1:
The straw incorporates a dynamic flexible portion that can transition between straight and bent configurations. This dynamic section allows the straw to be packaged in a compact u-shape when not in use, then extended and shaped as needed during the drinking process. The flexibility enables the straw to adapt its configuration based on whether it is being stored or used.
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 straw can be efficiently manufactured to maintain flexibility and durability, allowing it to be used repeatedly and packaged with beverage containers without collapsing, offering a sustainable alternative to plastic straws.
Implementation Method 1
a paper straw (200) comprising a stretchable paper, wherein the paper straw (200) comprises a flexible portion (203) having a compressed state and an extended state
Data Source
Figure 1
Figure 2A~2B
Figure 2C~3
AI summary
The present disclosure generally relates to a paper straw comprising a flexible portion having a compressed and an extended state, wherein the paper straw comprises a stretchable paper. The disclosure also relates to a drinking kit comprising the paper straw and to a process and a machine equipment for manufacturing the paper straw.