scholarly journals Performance of Knitted Fabrics Produced from Fancy Yarns with Different Slub/Meter and Blend Ratio

2018 ◽  
Vol 08 (05) ◽  
Author(s):  
Rania Atef ◽  
Rizk Elbealy ◽  
Alaa Arafa Badr ◽  
Rehab Abd Elkhalek
Keyword(s):  
Knitted Fabrics ◽  
Blend Ratio ◽  
Fancy Yarns

Structure and performance of color blended rotor spun yarn produced by a novel frame with asynchronous feed rollers

2017 ◽  
Vol 89 (3) ◽  
pp. 411-421 ◽  
Author(s):  
Rui-Hua Yang ◽  
Yuan Xue ◽  
Wei-Dong Gao
Keyword(s):  
Linear Density ◽  
Product Variety ◽  
Programmable Logic ◽  
Blend Ratio ◽  
Rotor Spinning ◽  
Spun Yarn ◽  
Rotor Spun Yarn ◽  
Fancy Yarns ◽  
And Performance ◽  
Surface Morphologies

This paper introduces a new and flexible spinning method that is modified on a rotor spinning machine. The modification is implemented by a novel mechanical system specially designed to incorporate three separate feed rollers side by side and controlled by servo motors with programmable logic controller (PLC). Using this new method, yarn structure parameters including linear density and blend ratio can be controlled and realized by asynchronous drafted slivers. Sixty-six types of color blended yarns were produced by controlling blending percentages of three basic colored slivers (magenta, yellow, and cyan) by changing the feeding speeds of the slivers respectively with constant yarn linear density and color. Surface morphologies, blending effects, and performances of the yarns were tested and analyzed. In addition, fancy yarns including slub yarn, period melange yarn, gradient melange yarn, and color pointed melange yarn were produced and their longitudinal morphologies were taken. The results demonstrated spinning feasibility and product variety of the three channeled rotor spun process.

scholarly journals Basic Comparison of the Properties of the Loop and Frotte Yarns, Woven and Knitted Fabrics

2014 ◽  
Vol 14 (3) ◽  
pp. 135-144 ◽  
Author(s):  
Katarzyna Ewa Grabowska ◽  
Izabela Ciesielska-Wróbel
Keyword(s):  
Production Condition ◽  
Production Costs ◽  
Knitted Fabrics ◽  
Lower Quantity ◽  
The Difference ◽  
Core Yarn ◽  
Fancy Yarns

Abstract Both loop fancy yarns and frotte fancy yarns belong to the group of yarns with continuous effects. The difference between frotte and loop yarn relies on the fact that the loop yarn is constructed with two core yarns and the frotte yarn is constructed with only one core yarn. The differences are evident in the shape of these two types of fancy yarns. These shape differences are the functions of the tensions of component yarns during the twisting process. The shape and construction of the fancy yarn influence its properties. The properties of loop and frotte fancy yarns, woven and knitted fabrics are compared in this article in order to find out the optimal yarn’s and fabric’s production condition to satisfy the final user and maintain low production costs. In terms of economy aspects only, the frotte fancy yarns are believed to be cheaper in production due to lower quantity of components utilize for their production to compare with loop fancy yarns, under conditions of the same settings of ring twisting frame.

scholarly journals Influence of the Bamboo/Cotton Fibre Blend Proportion on the Thermal Comfort Properties of Single Jersey Knitted Fabrics

2017 ◽  
Vol 25 (0) ◽  
pp. 53-57 ◽  
Author(s):  
Karunakaran Kadapalayam Chinnasamy ◽  
Prakash Chidambaram
Keyword(s):  
Thermal Comfort ◽  
Air Permeability ◽  
Statistical Investigation ◽  
Knitted Fabrics ◽  
Vapour Permeability ◽  
Blend Ratio ◽  
Bamboo Fibre ◽  
Thermal Comfort Properties ◽  
Single Jersey ◽  
Blend Proportion

The main aim was to find out the influence of the blend ratio and linear density on the thermal comfort properties of regenerated bamboo cotton blended single jersey knitted fabrics. An increase in the regenerated bamboo fibre ratio in the fabric influences the thermal comfort properties. Knitted fabrics prepared from regenerated bamboo blended yarns have lesser thickness and inferior mass per square meter than cotton fabrics. The proportion of regenerated bamboo fibre increases in the yarn as the value of thermal conductivity decreases in knitted fabrics. Water vapour permeability and air permeability confirm a similar increase as the proportion of regenerated bamboo fibre increases. 100% regenerated bamboo fabrics have superior air permeability values compared with regenerated bamboo/cotton blended fabrics. The statistical investigation also showed that the results are significant for the thermal comfort properties of regenerated bamboo cotton knitted fabrics.

scholarly journals Analytical Assessment of the Thermal Decomposition of Cotton-modacryl Knitted Fabrics

2017 ◽  
Vol 25 (0) ◽  
pp. 59-67
Author(s):  
Sandra Flinčec Grgac ◽  
Sandra Bischof ◽  
Tanja Pušić ◽  
Irena Petrinić ◽  
Thomas Luxbacher
Keyword(s):  
Streaming Potential ◽  
Potential Method ◽  
Gravimetric Analysis ◽  
Surface Characterisation ◽  
Knitted Fabrics ◽  
Potential Measurement ◽  
Blend Ratio ◽  
Analytical Assessment ◽  
Fabric Construction ◽  
Microscale Combustion Calorimetry

Fabric flammability is affected by various factors such as the fibre composition, fabric construction, FR (flame retardant) finish, oxygen concentration and environmental conditions (moisture content, heat.). Inherently FR fabrics are synthetics which have been changed at the molecular level to make the fabrics thermally stable and able to pass FR tests. The thermal properties of knitted fabrics produced from cotton, modacryl and their blends were investigated in this paper. The design of FR knitted fabrics and an optimal blend ratio were evaluated by different thermoanalytical methods: the flame behaviour and thermal stability with the limited oxygen index (LOI), thermal gravimetric analysis (TGA), coupled thermal gravimetry - Fourier transform infrared technique (TG-FTIR) and microscale combustion calorimetry (MCC). Surface characterisation of the knitted fabrics designed was evaluated by the streaming potential method. Knitted fabric in the blend ratio C50:M50 proved to possess the most favourable FR characteristics, additionally confirmed by optimal hydrophilic properties evaluated through zeta potential measurement.

scholarly journals Moisture Comfort and Antibacterial Properties of Elastic Warp-Knitted Fabrics

2015 ◽  
Vol 15 (1) ◽  
pp. 60-66 ◽  
Author(s):  
Zhi-Cai Yu ◽  
Jian-Fei Zhang ◽  
Ching-Wen Lou ◽  
Hua-Ling He ◽  
An-Pang Chen ◽  
...  
Keyword(s):  
Antibacterial Properties ◽  
Front Face ◽  
Water Evaporation ◽  
Knitted Fabric ◽  
Metal Composite ◽  
Knitted Fabrics ◽  
Blend Ratio ◽  
Fabric Structure ◽  
Back Face ◽  
Warp Knitted Fabric

Abstract Multifunction elastic warp-knitted fabrics were fabricated on a crochet machine with the use of metal composite yarns/viscose yarn and bamboo polyester/ crisscross-section polyester hybrid yarns as the front face and back face of the knitted fabric structure, respectively. We investigated the effect of the blend ratio of bamboo charcoal/ crisscross-section polyester multiply yarns on the fabric's moisture comfort properties, such as water vapour transmission (WVT), water evaporation rate (WER), and water absorbency. The results showed that blending ratio significantly influenced WVT and WER. Moreover, antibacterial activity of the elastic warp- knitted fabric was tested against Staphylococcus aureus and Escherichia coli in accordance with AATCC 90-2011. Finally, the extension- stress value curves were used to analyse the elastic stretching property, and the fabric exhibited greater breaking elongation and lower stress value in the walewise than in the weft direction.

Fancy yarns

2002 ◽  
Author(s):  
R H Gong ◽  
R M Wright
Keyword(s):  
Fancy Yarns
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