scholarly journals Acoustic Investigation of Textile Fabrics

Tekstilec ◽  
2020 ◽  
Vol 63 (4) ◽  
pp. 287-293
Author(s):  
Khorolsuren Tuvshinbayar ◽  
◽  
Andrea Ehrmann ◽  
Keyword(s):  
Cotton Fabrics ◽  
Woven Fabrics ◽  
Simple Approach ◽  
High Quality ◽  
Rotational Mode ◽  
Textile Fabrics ◽  
Technical Measurement ◽  
Record Player ◽  
First Results ◽  
Woven Structures

Why is it possible to distinguish between different textile fabrics by just touching them and moving your hand over them and listening to the sound? Particularly for high-quality woven fabrics, e.g. used for tailor-made suits, it is quite common that the dressmaker listens to the sound as their hand rubs the fabric. Can this approach be translated into a technical measurement? What could a sound analysis tell us about the fabric properties? As a first simple approach, we used a record player to rotate different cotton fabrics, and tested fine tips from diverse materials, such as plastic pipettes, pens, glass tips, etc. Our results show clear differences between the textile fabrics, which can be attributed to different yarn, knitted or woven structures. While the rotational mode of investigation impedes fully automated fast Fourier transform (FFT) evaluations, our first results suggest de¬veloping this promising method further.

scholarly journals Influence of washing on the adhesion between 3D-printed TPU and woven fabrics

2021 ◽  
Vol 2 (1) ◽  
pp. 34-39
Author(s):  
Jannik Störmer ◽  
Daniel Görmer ◽  
Andrea Ehrmann
Keyword(s):  
3D Printing ◽  
Strong Correlation ◽  
Thermoplastic Polyurethane ◽  
Cotton Fabrics ◽  
Woven Fabrics ◽  
Textile Fabrics ◽  
Fabric Structure ◽  
High Adhesion ◽  
3D Printed ◽  
Textile Fabric

3D printing on textile fabrics can be used to create composites with position-dependent mechanical, water-resistant, magnetic or other properties. An important prerequisite to use such composites technologically or for design purposes is a sufficient adhesion between both materials. While previous studies revealed that soft, elastic printing polymers were advantageous to prepare connections with a high adhesion, not much research has been performed yet on the dependence of the adhesion on textile fabric structure, heat post-treatment, and the influence of washing, which is necessary for most applications of such composites. Here we investigate composites from thermoplastic polyurethane (TPU) 3D-printed on two different woven cotton fabrics. Besides the expected strong correlation of the adhesion with the distance between nozzle and printing bed, we find a higher adhesion on the thinner fabric and an increase in the adhesion after one washing cycle.

Evaluation of Luster, Hand Feel and Comfort Properties of Modified Polyester Woven Fabrics

2017 ◽  
Vol 12 (4) ◽  
pp. 155892501701200 ◽  
Author(s):  
Rong Zhou ◽  
Xueli Wang ◽  
Jianyong Yu ◽  
Zhenzhen Wei ◽  
Yu Gao
Keyword(s):  
Water Vapor ◽  
Evaluation System ◽  
Moisture Absorption ◽  
Water Vapor Permeability ◽  
Objective Evaluation ◽  
Cotton Fabrics ◽  
Woven Fabrics ◽  
Vapor Permeability ◽  
Pet Fabric ◽  
Better Than

This paper reports a hollow copolyester fiber modified with polyethylene glycol and sodium-5-sulfo-bis-(hydroxyethyl)-isophthalate, abbreviated as ECDP-H, which has the potential to be a replacement for cotton. The objective evaluation of luster (contrast glossiness) and Kawabata Evaluation System for Fabrics (KES-F) (four Primary Hand Parameters and the Total Hand) of ECDP-H, PET and cotton fabrics are studied in order to investigate the cotton-like appearance of the ECDP-H. The results of moisture regain and dynamic moisture absorption values obtained indicate that the hydrophilicity of the ECDP-H fabric is better than that of PET fabric. The thermo-physiological performance for three fabrics is determined using air and water vapor permeability, wicking, warm-cooling feeling, thermal resistance and vapor resistance. The results show that the ECDP-H fabric has better hand and comfort properties than cotton.

Improved abrasion resistance of textile fabrics due to polymer coatings

2018 ◽  
Vol 49 (5) ◽  
pp. 572-583
Author(s):  
Martin Wortmann ◽  
Natalie Frese ◽  
Lubos Hes ◽  
Armin Gölzhäuser ◽  
Elmar Moritzer ◽  
...  
Keyword(s):  
Water Vapor ◽  
Abrasion Resistance ◽  
Polymer Coatings ◽  
Contact Angles ◽  
Woven Fabrics ◽  
Vapor Transport ◽  
Water Vapor Transport ◽  
Slight Reduction ◽  
Textile Fabrics ◽  
Technical Textiles

Textile fabrics are often subject to abrasion, starting from exposed parts of garments to a variety of technical textiles. Abrasion protection by usual coatings, however, can significantly decrease the water vapor transport through a fabric which is often not desired, especially in the case of garments. In our paper, we report on an approach to combine increased abrasion resistance with sufficient water vapor transport properties. For this, different polymers (poly(methyl methacrylate), acrylonitrile butadiene styrene, or amorphous polyamides) were coated on cotton and polyester woven fabrics. The results of abrasion tests against sandpaper show significantly increased abrasion resistance. The absolute evaporation resistance, measured by a Permetest testing device, was only slightly increased up to values still acceptable for typical garments. Images of all coatings by helium ion microscopy deliver an explanation for the measuring results. Polymer coatings on the polyester fabric resulted in a slight reduction of the hydrophobicity, while coating the cotton fabric severely increased the contact angles of the originally superhydrophilic material.

Yield Characteristics of a Twill Dutch Woven Wire Mesh Via Experiments and Numerical Modeling

2013 ◽  
Vol 80 (4) ◽  
Author(s):  
Steven M. Kraft ◽  
Ali P. Gordon
Keyword(s):  
Heat Treatment ◽  
Numerical Modeling ◽  
Tensile Tests ◽  
Woven Fabrics ◽  
Wire Mesh ◽  
Uniaxial Tensile ◽  
3D Numerical Modeling ◽  
Stainless Steel 316L ◽  
Treatment Development ◽  
Woven Structures

Woven structures are steadily emerging as excellent reinforcing components in composite materials. Metallic woven meshes, unlike most woven fabrics, show high potential for strengthening via classical methods such as heat treatment. Development of strengthening processes for metallic woven materials, however, must account not only for behavior of the constituent wires, but also for the interactions between contacting wires. Yield behavior of a 325 × 2300 stainless steel 316L (SS316L) twill dutch woven wire mesh is analyzed via experimental data and 3D numerical modeling. The effects of short dwell-time heat treatment on the mechanical properties of this class of materials is investigated via uniaxial tensile tests in the main weave orientations. Scanning electron microscopy (SEM) is employed to investigate the effects of heat treatment on contacting wire interaction, prompted by observations of reduced ductility in the macrostructure of the mesh. Finally, the finite element method (FEM) is used to simulate the accumulation of plastic deformation in the mesostructure of the mesh, investigating how this wire level plasticity ultimately affects global material yielding.

Improved Resilience by Formation of Elastomers inside Cotton Fibers

1969 ◽  
Vol 39 (6) ◽  
pp. 560-567 ◽  
Author(s):  
D. Meimoun ◽  
A. Parisot
Keyword(s):  
Mechanical Properties ◽  
Elastic Recovery ◽  
Cotton Fabrics ◽  
Cotton Fibers ◽  
Reaction Parameters ◽  
Permanent Set ◽  
First Results ◽  
Cellulose Fibrils ◽  
Optimum Reaction

The introduction of elastomeric substances between the cellulose fibrils and/or histological elements of cotton fibers could lead to wrinkle-resistant cottons. Such substances, polyenes obtained by polymerization in situ after inclusion within the structure, are unable to penetrate the intermolecular structure, but are able to link together the elements of the fiber. This might result in a fiber with greater delayed elastic recovery and reduced permanent set, permitting wrinkle recovery of cotton fabrics to be increased. The study of optimum reaction parameters resulted in a reproducible process for including the polymer. The location of the polymer has been determined through the development of a new method for revealing the structure of cellulose. The desired mechanical properties of woven treated fabrics are improved, as indicated by various measurements. The first results concerning single fibers seem to corroborate the preceding.

A Simple Approach to Fabrication of High-Quality HfSiON Gate Dielectrics With Improved nMOSFET Performances

2004 ◽  
Vol 51 (11) ◽  
pp. 1798-1804 ◽  
Author(s):  
X. Wang ◽  
J. Liu ◽  
F. Zhu ◽  
N. Yamada ◽  
D.-L. Kwong
Keyword(s):  
Gate Dielectrics ◽  
Simple Approach ◽  
High Quality
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