scholarly journals Knitting Force Measurement on Flat Knitting Machines

2014 ◽  
Vol 2014 ◽  
pp. 1-9
Author(s):  
A. Fouda ◽  
A. El-Hadidy ◽  
A. El-Deeb
Keyword(s):  
Force Measurement ◽  
Data Acquisition System ◽  
Measuring System ◽  
Knitted Fabric ◽  
Optimal Production ◽  
Twist Factor ◽  
Machine Parts ◽  
Fabric Structures ◽  
Single Jersey ◽  
Production Conditions

Knittability can be defined as the ability of yarns to run on knitting machines without problems. Knittability can be achieved when less stress is applied on the knitting machine parts by the knitting yarns. This paper presents a novel measuring system for the knitting force needed to perform knitting yarns on flat knitting machine based on data acquisition system (DAS). The proposed system is used to measure the knitting force at different machine settings and different properties of the knitting yarns to determine the optimal production conditions. For this reason, three types of knitted fabric structures (single jersey, Rib 1 × 1, and full cardigan) with three different loop lengths and five different twists of ply yarn were produced. The obtained results showed the optimal yarn ply twist factor (αe) which gave minimum knitting force (less stress on needles or knitting yarns) at different loop lengths for each structure.

Development, investigation and evaluation of smart multifunctional socks

2020 ◽  
pp. 152808372097016
Author(s):  
Laimutė Stygienė ◽  
Sandra Varnaitė-Žuravliova ◽  
Aušra Abraitienė ◽  
Audronė Sankauskaitė ◽  
Virginija Skurkytė-Papievienė ◽  
...  
Keyword(s):  
Phase Change Materials ◽  
Knitted Fabric ◽  
Knitted Fabrics ◽  
Protective Properties ◽  
Insect Repellents ◽  
Functional Additives ◽  
Blood Sucking ◽  
Fabric Structures ◽  
New Generation ◽  
Single Jersey

The use of a new generation chemical fibers with various functional additives offers new possibilities for the development of advanced (multi)functional textile products. Such compounds as phase change materials (PCMs), metals (like cooper, silver), also natural or chemical insect repellents, FIR emitting ceramic particles and etc. incorporated into fibres’ structure are essential for development of knitted fabrics directly contacting to the skin with effective thermoregulation and such protective properties as: antimicrobial, antistatic, repellence against blood sucking insects. The main parts of socks investigated were knitted in plain plated single jersey pattern. The 3-ply twisted yarns of new structures were used in the outer layer of socks. Yarns were made by using single yarns with PCMs, insect repellent permethrin, ceramic and silver additives containing fibres (Cell Solution® Clima, Cell Solution® Protection, Resistex® Silver). The inner layer of socks was made of polyester (PES) 3-ply twisted yarns with different number of filaments resulted in different structures of socks’ fabric. Based on all obtained thermoregulating and protective characteristics of investigated different knitted fabric structures of socks, the optimal knitted socks were selected. The obtained results of investigations are significant for the development of other knitted fabrics worn next to the skin.

scholarly journals An Investigation On Air and Thermal Transmission Through Knitted Fabric Structures Using the Taguchi Method

2017 ◽  
Vol 17 (2) ◽  
pp. 152-163 ◽  
Author(s):  
Anindya Ghosh ◽  
Prithwiraj Mal ◽  
Abhijit Majumdar ◽  
Debamalya Banerjee
Keyword(s):  
Air Permeability ◽  
Raw Material ◽  
Knitted Fabric ◽  
Loop Length ◽  
Knitted Fabrics ◽  
Yarn Count ◽  
Fabric Structures ◽  
Noise Factors ◽  
Single Jersey ◽  
Thermal Absorptivity

Abstract Knitted fabrics have excellent comfort properties because of their typical porous structure. Different comfort properties of knitted fabrics such as air permeability, thermal absorptivity, and thermal conductivity depend on the properties of raw material and knitting parameters. In this paper, an investigation was done to observe the effect of yarn count, loop length, knitting speed, and yarn input tension in the presence of two uncontrollable noise factors on selected comfort properties of single jersey and 1×1 rib knitted fabrics using the Taguchi experimental design. The results show that yarn count and loop length have significant influence on the thermo-physiological comfort properties of knitted fabrics.

scholarly journals Thermal Comfort Properties of Bi-layer Knitted Fabric structure for Volleyball Sportswear

2017 ◽  
Vol 25 (0) ◽  
pp. 75-80 ◽  
Author(s):  
Thangamuthu Suganthi ◽  
Pandurangan Senthilkumar ◽  
Venugopal Dipika
Keyword(s):  
Thermal Comfort ◽  
Outer Layer ◽  
Knitted Fabric ◽  
Knitted Fabrics ◽  
Vapour Permeability ◽  
Significance Level ◽  
Three Samples ◽  
Thermal Comfort Properties ◽  
Fabric Structures ◽  
Single Jersey

The thermal comfort properties of different knitted fabric structures made from modal, polypropylene and micro denier polyester were studied for volleyball sportswear. Eleven knitted fabrics were produced, in which three samples were single jersey, two plated and six bi-layer knitted structures. The air permeability, water vapour permeability, thermal conductivity, wicking and drying ability of bi-layer knitted fabric made up of polypropylene as the inner layer and modal as the outer layer with one tuck point of repeat were found to be higher as compared to other bi-layer, plated and single jersey structures. Both theobjective and subjective results show that bi-layer knitted fabric with polypropylene as the inner layer and modal as the outer layer with one tuck point of repeat is mostly suitablefor sportswear. The results are discussed together with multivariate ANOVA test results ata 95% significance level.

Development of Coolsmart Functional Knitted Fabrics

2012 ◽  
Vol 503-504 ◽  
pp. 498-502 ◽  
Author(s):  
Lan Qing Feng ◽  
Yan Jun Liu
Keyword(s):  
Pattern Formation ◽  
Moisture Absorption ◽  
Raw Materials ◽  
Knitted Fabric ◽  
Machine Code ◽  
Knitted Fabrics ◽  
Bacterial Function ◽  
Fabric Structures ◽  
Selection Of

Based on the main features of coolsmart fiber and the theory of knitted fabric structures， two structures of sports and leisure knitted fabrics with fast moisture absorption, description and anti-bacterial function are introduced in this article, detailing the selection of raw materials, pattern formation effect, the machine code organization and cam set out.

scholarly journals Developing a Measuring System for Monitoring the Thickness of the 6 m Wide HDPE/LDPE Polymer Geomembrane with Its Continuous Flow Using Automation Equipment

2021 ◽  
Vol 11 (21) ◽  
pp. 10045
Author(s):  
Tatyana Nikonova ◽  
Olga Zharkevich ◽  
Essim Dandybaev ◽  
Murat Baimuldin ◽  
Leonid Daich ◽  
...  
Keyword(s):  
Continuous Flow ◽  
High Density Polyethylene ◽  
Foreign Bodies ◽  
Automated System ◽  
Measuring System ◽  
Original Design ◽  
Software Complex ◽  
Automation Equipment ◽  
Production Conditions

As a result of R&D, a measuring system for controlling the thickness of the HDPE/LDPE (high-density polyethylene/low-density polyethylene) polymer geomembrane was developed using automation equipment. The relevance of this work consists of the development of a domestic, relatively inexpensive system for controlling the thickness of the HDPE/LDPE polymer geomembrane in production conditions based on modern equipment for enterprise automation. The scientific novelty consists of the use of original design solutions in the development of hardware and software complex mechanisms that allow controlling the thickness of the HDPE/LDPE polymer geomembrane layers along the entire width of the shaft, excluding deformation of the film as a result of foreign bodies entering during extrusion, cuts, monitoring the quality of the film in real time, as well as the possibility of analyzing the measured parameters in the database of the automated system.

Fully Stretchable Textile Triboelectric Nanogenerator with Knitted Fabric Structures

ACS Nano ◽  
2017 ◽  
Vol 11 (11) ◽  
pp. 10733-10741 ◽  
Author(s):  
Sung Soo Kwak ◽  
Han Kim ◽  
Wanchul Seung ◽  
Jihye Kim ◽  
Ronan Hinchet ◽  
...  
Keyword(s):  
Triboelectric Nanogenerator ◽  
Knitted Fabric ◽  
Fabric Structures
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