Dyeing, moisture regain and mechanical properties of wool fabric grafted with PMMA by chemical and radiation-initiated methods

1996 ◽  
Vol 47 (4) ◽  
pp. 623-629 ◽  
Author(s):  
A.M. El Naggar ◽  
M.M. Marie ◽  
E.H. El Gendy ◽  
A.A. El Miligy
Keyword(s):  
Mechanical Properties ◽  
Wool Fabric ◽  
Moisture Regain

EFFECT OF SURFACE TREATMENT ON THE PROPERTIES OF WOOL FABRIC

2007 ◽  
Vol 14 (04) ◽  
pp. 559-563 ◽  
Author(s):  
C. W. KAN ◽  
C. W. M. YUEN ◽  
C. K. CHAN ◽  
M. P. LAU
Keyword(s):  
Mechanical Properties ◽  
Thermal Properties ◽  
Fiber Surface ◽  
Air Permeability ◽  
Wool Fiber ◽  
Wool Fabric ◽  
Physical Treatment ◽  
Temperature Plasma ◽  
Technical Problems ◽  
Chemical Treatments

Wool fiber is commonly used in textile industry, however, it has some technical problems which affect the quality and performance of the finished products such as felting shrinkage, handle, lustre, pilling, and dyeability. These problems may be attributed mainly in the presence of wool scales on the fiber surface. Recently, chemical treatments such as oxidation and reduction are the commonly used descaling methods in the industry. However, as a result of the pollution caused by various chemical treatments, physical treatment such as low temperature plasma (LTP) treatment has been introduced recently because it is similarly capable of achieving a comparable descaling effect. Most of the discussions on the applications of LTP treatment on wool fiber were focused on applying this technique for improving the surface wettability and shrink resistance. Meanwhile, little discussion has been made on the mechanical properties, thermal properties, and the air permeability. In this paper, wool fabric was treated with LTP treatment with the use of a non-polymerizing gas, namely oxygen. After the LTP treatment, the fabrics low-stress mechanical properties, air permeability, and thermal properties were evaluated and discussed.

Effect of Various Chemical Treatments on Handling of Wool Fabric

2015 ◽  
Vol 671 ◽  
pp. 3-8
Author(s):  
Masukuni Mori
Keyword(s):  
Mechanical Properties ◽  
Wool Fabric ◽  
Chemical Treatments ◽  
Fabric Structure ◽  
Fabric Handle ◽  
Yarn Count ◽  
Fabric Weight ◽  
Finishing Processes ◽  
Twist Number

It is well known that fabric handle is controllable by controlling and adjusting mechanical properties of the fabric. The handling of fabrics, on one hand, is mostly decided by the structure of the fabric, i.e. quality of yarn, yarn count, twist number, density of warp and weft, fabric weight and weave design. Such a fabric structure is represented in terms of Cover Factor. On the other hand, the handling of fabrics can also be changed through the mechanical properties by dyeing and finishing processes after weaving. The present work investigated how much influence is exerted on wool fabric by 11 sorts of chemicals generally used in dyeing and finishing processes, and how much change is exerted on the handle of processed fabrics. The experimental results were compared with the original fabric with no treatment in terms of mechanical properties relevant to KES. It was confirmed that the fabric handle greatly depended on fabric structure. Besides, the differences in the degree of damage and the hydrophilicity of wool fiber arisen from the treatments using chemicals were examined. The effect of chemicals used in dyeing and finishing processes was also investigated on the environment. Keywords: Wool, Chemical treatment, Fabric handle, KES, Environment.

The Structure and Property of Akund

2019 ◽  
Vol 793 ◽  
pp. 59-63
Author(s):  
Wei Dong Li ◽  
Xuan Li ◽  
Ming Hui Xu
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Thermal Behavior ◽  
Crystalline Structure ◽  
Xrd Analysis ◽  
Cotton Fibers ◽  
Moisture Regain ◽  
Structure And Property ◽  
Ft Ir

The morphology, microfiber structure, crystalline structure, mechanical properties and thermal behavior of the Akund were studied with SEM, FT-IR, TG and XRD analysis, and compared with cotton fibers. Its mechanical properties, moisture content and moisture regain were tested, and its solubility was analyzed in different solutions.

Structure and Properties of Novel Modified Polyester Fibers

2013 ◽  
Vol 821-822 ◽  
pp. 55-59
Author(s):  
Ning Ning Wu ◽  
Li Qian Huang ◽  
Jian Yong Yu
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Cross Section ◽  
Treatment Temperature ◽  
Structure And Properties ◽  
Textile Processing ◽  
Moisture Regain ◽  
Polyester Fibers ◽  
Profiled Fibers ◽  
Better Than

The structure and properties of the fiber affect its processing and wearing performance of the textile product. There are 3 kinds of novel polyester fibers modified by copolymerization. To make good use of these modified polyester fibers and predict their processing and wearing performance, the structure and properties of the fibers were characterized by cross section, crystallinity, moisture regain, tensile test, DSC and TG. Results show that the 2 of the modified fibers are profiled fibers with lower crystallinity and higher moisture regain. The mechanical properties of the modified fibers are worse than that of the ordinary polyester, but much better than cotton fiber. The modified polyester fibers are more thermal sensitive than ordinary polyester fiber. The heat treatment temperature of them in the textile processing should be controlled more carefully than ordinary polyester fibers.

Thermal comfort properties of Kevlar and Kevlar/wool fabrics

2014 ◽  
Vol 84 (19) ◽  
pp. 2094-2102 ◽  
Author(s):  
Rana Faruq Mahbub ◽  
Lijing Wang ◽  
Lyndon Arnold ◽  
Sinnappoo Kaneslingam ◽  
Rajiv Padhye
Keyword(s):  
Mechanical Properties ◽  
Water Vapor ◽  
Thermal Comfort ◽  
Air Permeability ◽  
Wool Fabric ◽  
Moisture Management ◽  
Wool Fabrics ◽  
Optical Porosity ◽  
Ballistic Vests ◽  
Thermal Comfort Properties

Recent research on ballistic vests has focused on comfort performance by enhancing thermal comfort and moisture management. Kevlar/wool fabric has been developed as a potential material for ballistic vests. This study investigates the thermal comfort properties of woven Kevlar/wool and woven Kevlar ballistic fabrics. In this context, the thermal resistance, water-vapor resistance, moisture management performance, air permeability and optical porosity of 100% Kevlar and Kevlar/wool ballistic fabrics were compared. The effects of fabric physical properties on laboratory-measured thermal comfort were analyzed. This study also presents the fabric bursting strength and tear strength for comparison. Experimental results showed a clear difference in thermal comfort properties of the two fabrics. It was found that Kevlar/wool possesses better moisture management properties and improved mechanical properties than Kevlar fabric.

Effects of Synthappret BAP-Based Treatments on the Cuff-Edge Felting and Mechanical Properties of a Lightweight Woven Wool Fabric

1992 ◽  
Vol 62 (10) ◽  
pp. 595-602 ◽  
Author(s):  
P. G. Cookson ◽  
A. G. De Boos
Keyword(s):  
Mechanical Properties ◽  
Mechanical Action ◽  
Wool Fabric ◽  
Bending Rigidity ◽  
Electron Micrograph ◽  
Scanning Electron Micrograph ◽  
Dry Cleaning ◽  
Fiber Damage ◽  
Damage And Failure ◽  
Scanning Electron

Cuff-edge felting of a pure wool shirting fabric treated with Synthappret BAP, either alone or in combination with a polyurethane or polyacrylate, has been examined. Using appropriate levels of polymer, cuff-edge felting was prevented after the recommended test of five 5A washing cycles in a Wascator. The inherent stiffness of the polymer-treated fabric was reduced by washing, decatizing or, especially, dry-cleaning; reductions in bending rigidity were accompanied by increases in extensibility. Scanning electron micrograph studies showed that mechanical action along a cuff edge during washing caused fiber damage and failure of the polymer. Mechanical action also occurred during dry-cleaning, and this lead to more severe cuff-edge felting as a result of subsequent washing. The level of weave crimp has a major bearing on cuff-edge felting.

Effect of Chemical Treatment on Mechanical Properties and Moisture Regain of Jute Fibers

1988 ◽  
Vol 58 (9) ◽  
pp. 537-543 ◽  
Author(s):  
I. K. Varma ◽  
S. R. Anantha Krishnan ◽  
S. Krishnamoorthy
Keyword(s):  
Mechanical Properties ◽  
Vinyl Ester ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Corchorus Olitorius ◽  
Vinyl Ester Resin ◽  
Moisture Regain ◽  
Corchorus Capsularis ◽  
Jute Fibers ◽  
Trimethoxy Silane

We report on the moisture regain, relative vapor pressure, hysteresis, and mechanical properties of two varieties of jute fibers. Corchorus capsularis grade 2 and Corchorus olitorius grade 2, modified by treatment with sebacoyl chloride, tolylene diisocyanate unsaturated polyester resin, vinyl ester resin, γ-aminopropyl trimethoxy silane, and isopropyl triisostearoyl titanate. All the treated fibers showed a reduction in moisture regain, but some fibers had superior moisture repellent behavior with no deterioration in their mechanical properties, while others suffered a loss in mechanical properties.

Natural fibers woven fabric reinforced hydrogel composites for enhanced mechanical properties

2020 ◽  
pp. 152808372094448
Author(s):  
Umit Koc ◽  
Yakup Aykut ◽  
Recep Eren
Keyword(s):  
Mechanical Properties ◽  
Mechanical Strength ◽  
Mechanical Performance ◽  
Natural Fiber ◽  
Chemical Characterization ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Wool Fabric ◽  
Rapid Preparation ◽  
Hydrogel Composites

One-step and rapid preparation of natural fiber woven fabric reinforced hydrogel composites via simultaneous dissolution and crosslinking of polyvinyl alcohol (PVA) yarns in the fabric was reported. In this regards, PVA/Cotton (C), PVA/Flax (F) and PVA/Wool (W) blended woven fabrics were prepared for the manufacturing fabric reinforced hydrogel composites. The hybrid woven fabric reinforced fabrics were treated with different concentrations of borax solutions. Aqueous borax solutions were used to alter the PVA yarns in the fabric into cross-linked structure in order to enhance mechanical performance of the hydrogel composite. Morphological investigation of hydrogel composites in a dried form was carried out by scanning electron microscopy (SEM) imaging. The chemical characterization of aqueous borax treated samples was examined by fourier-transform infrared spectroscopy (FTIR) measurements. Mechanical performances of the hydrogel composites were observed by tensile measurements. Thermogravimetric analysis (TGA) was conducted to characterize thermal stability of hydrogel composites. The results revealed that natural fiber woven fabric reinforcement significantly enhanced the mechanical strength of hydrogel composites, and wool fabric reinforced composite had better mechanical performance than its cotton and flax counterparts. Due to the low mechanical properties of hydrogels in general, the prepared fabric reinforced hydrogel composites could be used in hydrogel applications where mechanical strength is critically important.

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