Bag-Shaped Liquid Packaging With Segmented Perforation
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Solution Overview
Problem
Conventional packaging for liquids and fluidic materials often leaves significant residues after use, leading to waste and environmental issues, as they do not allow complete emptying or easy access to remaining product, and cannot be disposed of selectively without further action.
Innovation Solution
A bag-shaped packaging design featuring a supporting element on one side, a closable opening, a perforation strip for easy division into two parts, and tear tabs, allowing complete access to the interior and enabling secure secondary use and selective waste collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bag is designed with a single supporting element at one end, then the packaging can stand upright during primary use, but the user cannot access remaining product after emptying without damaging the bag
Solution Approach 1:
The bag is divided into two separate compartments by a fold line, allowing the user to access one compartment while leaving the other intact. This segmentation enables partial access to remaining product without compromising the overall bag structure, resolving the contradiction between ease of access and structural integrity.
2Loss of substance
If the bag is torn open to access remaining product, then complete emptying is achieved, but the packaging cannot be disposed of selectively and material recovery is hindered
Solution Approach 1:
By dividing the bag into two separable compartments, the invention allows users to remove and dispose of one compartment containing residual product while keeping the other compartment intact for selective recycling or disposal. This eliminates the need to destroy the entire bag structure, enabling selective waste collection and material recovery.
Solution Approach 2:
The design enables selective discarding of only the necessary portion (one compartment with residue) while preserving the other compartment for recovery and recycling. This partial discarding approach reduces material waste and facilitates environmental sustainability.
3Reliability
If a screw cap closure is used to reseal the bag, then accidental spillage is prevented, but complete removal of remaining product is not enabled
Solution Approach 1:
The fold line creates a clean separation between two compartments, allowing the user to detach one compartment completely while leaving the other sealed with its closure. This segmentation enables both reliable resealing of the retained compartment and complete removal of residue from the detached compartment, resolving the contradiction between resealing capability and residue removal.
4Loss of substance
If the bag is designed for complete tearing to access all product, then total emptying is achieved, but the packaging structure is destroyed and cannot be reused or selectively disposed of
Solution Approach 1:
The bag is pre-divided into two compartments by a fold line, allowing complete access to product in one compartment while preserving the structural integrity of the other compartment. This segmentation enables total product recovery from the accessed compartment without destroying the overall packaging structure, maintaining stability for selective disposal or recycling.
Data Source
AI summary
A packaging for storing and dispensing liquids and fluidic materials with a bag-shaped body, which has a closable opening designed to remove the product stored in the packaging. Both ends of the bag-shaped body are formed as a supporting element made of the body material, holding the packaging in a standing position. Approximately in the middle region of the bag-shaped body a transversely extending perforation strip is formed for dividing the bag shaped body in two parts, comprising at least one tear tab is connected to it.