Composite Interlaced Yarn With Alternating Fastness Zones
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing interlacing technologies for chemical fiber filaments are limited in application scope due to a single interlacing function and lack of variety in interlacing styles, which restricts their use in diverse textile applications.
Innovation Solution
A composite interlaced yarn is developed with alternating interlacing parts of varying fastness, achieved by using a specially designed jet with two airflow injection points of different pressures to create a sequence of splitting and interlacing parts, resulting in a multifilament yarn with distinct interlacing characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single interlacing function is used in the interlacing jet, then the interlacing process is simple and easy to operate, but the application scope is limited and the product style variety is insufficient
Solution Approach 1:
The interlacing jet is designed with multiple airflow injection holes (first airflow injection hole and second airflow injection hole) that can perform different interlacing functions simultaneously. The first airflow injection hole creates a first interlacing part with first interlacing fastness, while the second airflow injection hole creates a second interlacing part with second interlacing fastness, enabling the single jet device to produce multi-functional interlaced yarn with varied styles and expanded application scope
Solution Approach 2:
The interlacing process is segmented into multiple distinct interlacing parts along the yarn length. Each airflow injection hole corresponds to a specific segmentation zone where different interlacing characteristics are generated. This segmentation allows different portions of the yarn to have different interlacing fastness values, creating diverse product styles from a single continuous processing operation
2Adaptability or versatility
If uniform interlacing fastness is applied throughout the yarn, then the manufacturing process is simple, but the fabric surface lacks visual variety and aesthetic appeal
Solution Approach 1:
Different segments of the yarn are given different interlacing fastness properties through localized airflow control. The first airflow injection hole produces regions with first interlacing fastness while the second airflow injection hole produces regions with second interlacing fastness. This local differentiation creates visual variety and aesthetic appeal on the fabric surface, with different portions exhibiting distinct interlacing characteristics rather than uniform appearance throughout
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 composite interlaced yarn allows for enhanced application range by providing a fabric surface with varying tightness and gloss, offering a visually uneven yet physically flat appearance, suitable for clothing and decorative fabrics.
Implementation Method 1
the jet is formed by processing a cubic structure... the jet hole I and the jet hole II intermittently inject a compressed airflow into the yarn path
Implementation Method 2
the monofilaments that are not impacted by the airflow are interspersed and transferred with each other under the action of the vortex, forming a false twisted braid into an interlacing knot
Data Source
AI summary
A composite interlaced yarn is a filament subjected to an interlacing process, wherein the filament is a multifilament, and the composite interlaced yarn includes a plurality of continuous circulation units in a longitudinal length; each circulation unit includes a splitting part I, an interlacing part I, a splitting part II and an interlacing part II connected in sequence; an interlacing fastness of the interlacing part I is different from an interlacing fastness of the interlacing part II. An interlacing method for the composite interlaced yarn includes: the multifilament that is not subjected to the interlacing process sequentially adjusting a pre-tension by a tensioner, passing through a yarn path of a jet, and winding by a winding roller, so as to obtain the composite interlaced yarn, wherein a jet hole I and a jet hole II are formed in the jet.