Bonded Knitted Net Eliminates Warp Knotting Strength Loss
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing bale wrap nets experience strength loss due to knotting in warp yarns during knitting, leading to increased production costs when attempting to enhance strength through warp insertions.
Innovation Solution
A bonded-type knitted net structure where warp yarns are arranged in parallel and connected to weft yarns via bonding, with weft yarns in a zigzag shape, eliminating strength loss and maintaining high tensile strength with stretchability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If warp insertions are added to improve strength, then the strength is improved, but the production cost increases due to increased overall weight
Solution Approach 1:
The patent extracts the knotting function from the warp yarns by introducing weft insertions that bypass the looped warp structures. The weft insertions are arranged in parallel to the warp yarns and connected through bonding, creating a separate load-bearing path that eliminates the need for knotting in the warp yarns, thus improving strength without increasing weight
Solution Approach 2:
The patent creates a composite structure combining warp yarns, weft insertions, and bonding agents. The weft insertions form a parallel composite structure with the warp yarns, where the bonding connects these elements to create a synergistic effect that improves overall strength without requiring additional weight in the traditional knotting manner
2Object-generated harmful factors
If continuous winding and looping of warp is used to avoid knotting, then knotting is avoided, but strength loss of 30% to 40% occurs when subjected to force
Solution Approach 1:
The patent extracts the load-bearing function from the looped warp structures by introducing parallel weft insertions. These weft insertions are connected to the warp yarns through bonding at junction points, creating an alternative force transmission path that eliminates the 30-40% strength loss associated with continuous warp looping and knotting
Solution Approach 2:
The patent applies bonding locally at the junction points between warp yarns and weft insertions, creating localized strong connections that compensate for the inherent weakness of looped warp structures. This localized reinforcement at critical junction points restores overall strength without requiring changes to the entire warp knitting structure
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 bonded-type knitted net improves strength by eliminating knotting, maintains high tensile strength with a stretch rate of 30% to 80%, and allows for continuous production without increasing gram weight.
Implementation Method 1
junction points between the warp yarns and the weft yarns are connected by bonding
Implementation Method 2
the junction points between the warp yarns and the weft yarns are connected by thermal bonding
Data Source
AI summary
The present disclosure discloses a bonded-type knitted net and a bale net, belonging to the technical field of net knitting. In the bonded-type knitted net according to the present disclosure, warp yarns are arranged in parallel in a warp direction, weft yarns are distributed in a zigzag shape between every two adjacent warp yarns, and junction points between the warp yarns and the weft yarns are connected by bonding. Since there are no knots in the warp yarns, a strength loss caused by knotting in the warp yarns during knitting is eliminated, thus improving a strength. A stretch rate of the warp yarns in the knitted net is 30% to 80%, which maintains a high tensile strength on a basis of certain stretchability. In addition, a knitting width can be controlled according to a need and an efficiency is higher.