Roped Stretch Wrap Film for Ventilated Pallet Containment
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Solution Overview
Problem
Existing stretch wrapping technologies struggle to provide adequate ventilation and load containment for perishable goods while maintaining cost-effectiveness and efficiency, as conventional ventilated films are expensive, limited in stretchability, and prone to breakage due to pre-cut holes, leading to increased waste and safety risks.
Innovation Solution
A stretch wrap film product is developed with a single film roll core accommodating multiple individual bands, allowing for roping and pre-stretching to enhance stretchability and load containment, eliminating pre-cut holes, and enabling customizable ventilation and reduced material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If pre-cut holes are made in ventilated film to provide airflow, then ventilation is improved, but film strength and reliability deteriorate due to breakage
Solution Approach 1:
The patent removes the harmful pre-cut holes from the film structure entirely. Instead of extracting ventilation function from the film material itself, the invention uses gaps created by the roping mechanism between adjacent film ropes to provide airflow. This eliminates the weak points while maintaining ventilation functionality.
Solution Approach 2:
The film is divided into multiple individual ropes or bands that are applied separately to form the wrap. These segmented ropes create natural gaps between them that provide ventilation without requiring holes in the film material. The segmentation transforms the continuous film into discrete elements that maintain structural integrity while enabling airflow.
2Object-affected harmful factors
If conventional ventilated film is used to provide airflow, then ventilation is achieved, but cost increases due to expensive specialized film
Solution Approach 1:
The invention uses standard, inexpensive stretch wrap film instead of costly pre-ventilated film. The ventilation function is achieved through the application method (roping technique) rather than through expensive specialized film material. This substitutes cheap standard film for expensive ventilated film while maintaining the ventilation benefit.
Solution Approach 2:
The standard stretch wrap film serves multiple functions: load containment, stabilization, and ventilation. The ventilation function is achieved not through the film's inherent structure but through the roping application technique that creates gaps between film ropes, making the standard film multi-functional without requiring specialized expensive material.
3Strength
If pre-stretching is applied to enhance load containment, then film strength improves, but film breakage increases due to pre-cut holes
Solution Approach 1:
The patent removes pre-cut holes from the film before the roping and pre-stretching process. By eliminating the holes that would serve as weak points, the film can be pre-stretched to enhance load containment without the risk of breakage that would occur with conventional ventilated film.
Solution Approach 2:
The roping process is performed as a preliminary action before pre-stretching. The film is first formed into ropes that are more resistant to breaking, and then this roped film undergoes pre-stretching. This sequence of preliminary actions enhances load containment while preventing the breakage that would result from stretching film with pre-cut holes.
4Stability of the object's composition
If standard stretch wrap is used to provide load containment, then load stability is achieved, but ventilation is insufficient for perishable goods
Solution Approach 1:
The film is applied as multiple separate ropes or bands rather than a continuous sheet. This segmentation creates gaps between the ropes that allow airflow for ventilation while the ropes themselves maintain load containment and stability. The segmented structure simultaneously provides both load stability and ventilation functions.
Solution Approach 2:
The standard stretch wrap film, when applied using the roping technique, performs multiple functions including load containment, stabilization, and ventilation. The gaps between the roped film bands provide airflow paths, making the standard film multi-functional without requiring specialized expensive ventilated film material.
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 solution provides improved ventilation and load stability with reduced material consumption, lower production costs, and enhanced safety by eliminating film tails, ensuring goods remain in peak condition during transport.
Implementation Method 1
Pallet wrap is distinguished from other types of polymer film by its characteristic resilience in use in so far as its ability to stretch and then pull back
Implementation Method 2
allowing for roping and pre-stretching to enhance stretchability and load containment
Data Source
AI summary
The present application relates to apparatus for stretch wrapping goods with stretch wrap film including: a film roll carriage for dispensing at least one band of film from at least one stretch wrap film roll core, a roping mechanism for roping the at least one band of film by edging at least one lateral side edge of the film, a pre-stretcher for pre-stretching the film by passing the roped film through a pre-stretcher, a stretch wrap carousel for wrapping the roped and pre-stretched film around the goods, wherein the at least one band of film is passed through the roping mechanism prior to the pre-stretcher.