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Monday, November 23, 2020 | History

2 edition of Relationships between warp tension and fabric physical and mechanical properties found in the catalog.

Relationships between warp tension and fabric physical and mechanical properties

A. E. Serttas

Relationships between warp tension and fabric physical and mechanical properties

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  • 4 Currently reading

Published by UMIST in Manchester .
Written in English


Edition Notes

StatementA.E. Serttas ; supervised by X. Chen.
ContributionsChen, X., Textiles.
ID Numbers
Open LibraryOL16794066M

Fabric thickness at any given pressure can be obtained from the pressure-thickness relationship of the fabric. The development of instruments to characterise fabric mechanical properties dates back to the classic paper by Peirce in He developed a simple but useful fabric thickness tester, and this device was later incorporated in the. analysis detected a very good correlation between spandex amount ratio and physical properties of fabrics woven from cotton/ spandex core- spun yarns. [Mofeda Abdul Rahman AL-ansary. Effect of Spandex Ratio on the Properties of Woven Fabrics Made of Cotton / Spandex Spun Yarns. Journal of American Science ; 7(12)]. As noted above, for small deformations, most elastic materials such as springs exhibit linear elasticity and can be described by a linear relation between the stress and strain. This relationship is known as Hooke's law.A geometry-dependent version of the idea was first formulated by Robert Hooke in as a Latin anagram, "ceiiinosssttuv".He published the answer in "Ut tensio, sic vis. Backer, S., Relationship Between the Structural Geometry of a Textile Fabric and Its Physical Properties: Part I: Literature Review, TEXTILE RESEARCH JOUR (); Part II: The Mechanics of Fabric Abrasion, ibid. 21, (); Part Iii: Textile Geometry and Abrasion-Resistance, ibid. 21, (); Part IV: Interstice.


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Relationships between warp tension and fabric physical and mechanical properties by A. E. Serttas Download PDF EPUB FB2

All low-stress mechanical properties and fabric hand values from the testing results were used to verify the applicability of the KES-F on warp-knitted fabrics and to analyze the relationships of fabric parameters and hand characteristics. The results indicate that the KES-F is an appropriate tool to measure the hand attributes of warp-knitted Cited by: 4.

at break. They discovered relationship between the change of friction and the area of warp and weft thread contact. Wang et al. [8] were analyzing mechanical interaction of warp and weft yarns in shearing deformations. They defined theoretical equations, which revealed relationship between shearing rigidity and fabric structure.

Kumpikaitė. Shed geometry plays a vital role in controlling warp yarns tension, elongation and friction between them (Javaid ). Besides the aesthetic properties, mechanical and physical properties of fabric are considered as decisive quality parameters.

Fabric structure plays a critical role for predicting the fabric by: 1. mechanical properties. The fused bilayer textile systems were formed by changing the orientation of interlining: 0° (system PAR), 45° (BIAS), and 90° (PER) in respect to the outer fabric’s warp direction (Fig.

1) and follow-ing the fusing conditions presented in Table 2. The mechanical properties (tensile, shear, and bend.

The relationships between various fabric properties and fabric stiffness were analyzed. Several monofilament fabrics were tested in the warp direction for this purpose. The influence of the weave and the method of stitching on selected mechanical properties of woven double fabrics.

AUTEX Research Journal, 2, [7] Abromavičius, R., Laureckienė, G., Milašius, R. Influence of yarn texturing technological parameters and fabric structure on tensile properties of the polypropylene fabric.

ard shapes (cross and square) were used. Mechanical properties of the yarns from which the fabrics were made were analysed before and after weaving in order to define the impact of weaving on them. Key words: glass fabrics, basalt fabrics, physical mechanical properties, Poisson’s ratio, lateral preload, lateral contraction.

Many researchers have considered the relationships between a fabric’s physical properties and hand [5–10]. Measuring fabric hand has been a subject of textile research since the s by Peirce [17]. The hand of fabric was predicted using mechanical properties of fabric such as tensile, bending, shear, compression and surface properties [18].

The fabric mechanical properties, in turn, are dependent upon the fabric type (e.g. knitted or woven) and structure (e.g. tightness, yarn cross-over point density, yarn unit segment and float length), yarn structure (e.g. linear density, twist, hairiness and internal structure) and fibre mechanical and other properties (e.g.

elastic and visco. In textile production technology, one of the objectives of the manufacturer is to produce high quality fabrics or garment which will satisfy the customers’ need both in serviceability and in price.

In this study, a comparative study was made on the properties of NylonNylon 6, Kev and E-glass fabric. This comparison was based on properties such as yarn count, yarn crimp, fabric. appurtenant fabric. Changes in warp density provide significant correlation coefficients between the warp density and physica l-mechanical properties of fabrics and multi -component materials.

This research proved existence of significant influence of fabric parameters on the properties and qualitative characteristics of an end product.

A Study of Weaving Systems by Means of Dynamic Warp and Weft Tension Measurement Relationships between warp tension and fabric physical and mechanical properties book V HOLCOMBE- R E GRIFFITH & R POSTLE The extent to which the mechanical and physical properties of woven fabrics are determined by loom the yarns at the moment of fabric formation have an important influence on fabric structure.

It should be. physical characteristics of yarn combined together help in understanding various phenomena in fabrics. Basic relationship between geometrical parameters The geometrical model is mainly concerned with the shape taken up by the yarn in the warp or weft cross-section of the fabric. It helps to quantitatively describe the geometrical parameters.

Warp yarn should not impair the physical & mechanical properties of yarn. The tension should be moderate t o allow the yarn complete retain its elastic property.

Predetermined length of warping should be observed. The production rate of warp yarn should be high. The surface of warp yarn package must be cylindrical. And the relationship between shed amount and warp tension on on e fixed heald frame was surveyed according to the various looms and also fabric thickne ss according to the fabric width was measured for analysing fabric thickness variatio n with weaving loom characteristics.

The importance of the fabric mechanical properties for emotional. As a result, the relationships between the physical and mechanical properties of fabrics of the coat group and the shaping of women’s coats in different volume-silhouette forms were identified. relationship of the maximum pullout load and the embedded yarn length in a woven fabric.

The maximum load is shown in the theory to be related to the yarn-yarn interactions, and the mechanical and geometrical properties of the fabric and the yarn.

This approach is useful in. The handle and tactile comfort of knitted underwear are strongly related to the fabric’s low stress mechanical properties. The Kawabata evaluation system (KES-F) is a set of sophisticated instruments for characterizing the fabric’s low-stress mechanical properties, which include tensile, shear, bending, compression and surface properties.

41 The specimens are cut into 20 × 20 cm 2 samples. Physical and Mechanical properties of various fibers. Textile properties developed by drawing Equation for warp and weft yarn jamming. Biaxial, tri-axial and balanced structure Yarn and fabric strength relationship.

Handle, drape and shear. Measurement of drape ability. Some tensile properties of fabric. Electrical properties of. It has been proved that the tensile tension of warp yarns is independent of geometry and fiber structure, the mechanical properties of filament warp yarns under load depend on internal factors such as material quality evenness, twist and external factors such as time.

The relationship between warp yarn and fabric properties. The warp knitting parameters are important to determine the knitting process and the mechanical properties of warp knitting mesh fabric. In this work, the relationship between different knitting parameters (mesh side length and the let-off value) and the mechanical properties were studied.

The effect of knitting parameters on the tensile strength and elongation was investigated by experiment. : Analysis of Some Physical and Mechanical Properties of Selected Fabrics easily dirty. Most stain washes out easily but it attracts dye; white nylon should be separated from coloured material during laundry.

When Nylon is heat set and made into garment they hardly loose their shapes and shed crease quickly after washing. To predict the mechanical property of each fabric sample woven from both spinning techniques, i.e. compact and ring spinning, at different filling yarn counts and twist factors, a multiple non-linear regression analysis was executed.

The regression relationship between different fabric properties and levels of filling yarn counts and. TEKE Weaving Technology II Prof. Emel Önder/ Assoc. Dr.Ömer Berkalp 13 Warp and Weft Densities • Warp density Number of warp ends per unit length of fabric - spacing between warp.

In this investigation, the relationships between the warp knitted fabric fatigue behaviour and its structural parameters are examined as these are important factors influencing the mechanical properties of the fabric. For the experimental work, a uniaxial tensile fatigue tester with a single station has been designed and constructed.

PHYSICAL, THERMAL, AND MECHANICAL PROPERTIES OF POLYMERS A PHYSICAL PROPERTIES Physical properties of polymers include molecular weight, molar volume, density, degree of polymerization, crystallinity of material, and so on.

Some of these are A Mechanical Properties. Relationship between yarn properties and knitted fabric Warp tension during loop formation Yarn tension and oscillation in the process of warp knitting Robbing back Low stress mechanical properties of fabrics ASTM D (Grab Test), 50 lbs.

minimum in warp and weft Breaking strength is the measurement of stress exerted to pull a fabric apart under tension. Seam Slippage ASTM D, 25 lbs.

minimum in warp and weft Seam Slippage is the movement of yarns in a fabric. reported the relationship between fabric drape and the values of mechanical properties obtained in the warp and weft directions.6–14 In general, bending, shearing and extension properties were shown to affect fabric drape.

Recently, several computer techniques have been developed or used for the simulation of fabric. pattern. The properties of the produced blended fabrics were studied. The results show useful indications of the differences that exist in their physical and mechanical properties such as the fabric tensile strength, tearing strength, abrasion resistance, crease recovery, fabric drape, fabric thickness, fabric crimp and fabric sett.

The tension of all wound end must be uniform and possibly constant throughout the withdrwal process. Warping should not impair the physical and mechanical properties of yarn. The surface of warping package must be cylindrical.

A pre-determined length of yarn should be. relationships between fabric hand and some physical or mechanical properties of a fabric measured objectively. Equipment and test methods to measure mechanical properties which are evolved over a number of years before the development of the KES-F system are highlighted.

in turn affects the most of the physical and mechanical properties. 4 8 12 16 Fabric contraction (%) 1S: 1C 2S: 1C 4S: 1C 6S:1C S Fabric code Figure 1: Contraction of woven fabrics at different spandex rates Fabric contraction levels in the weft direction for different stretchable woven fabrics were plotted in.

WARP Exhibits is a grand scale dye sublimation printer. We wholesale to the trade only and manufacture our own proprietary first class aluminum frames for our tension fabric structures, and SEG projects for trade show exhibits, displays and events.

Should meet the following requirement: 1. The tension of all wound ends must be uniform and possibly constant during all the time of withdrawal from supply packages, otherwise the rate of breakage will be increased & the structure of the ready cloth will be impaired.

Warping should not impair the physical & mechanical properties of yarn. The effect of different yarn and fabric parameters on the tearing strength of fabrics having plain, 2/2 twill, 3/1 twilland 4­ thread satin weaves and woven using 52' reedand 2/40' polyester-viscose (15/85)warp has been studied.

Weftcount, weft twist multiplier and pick level were varied in the plain woven fabrics. The insoles are constructed with warp-knitted polyester spacer fabrics with 3D construction and have good cushioning, permeability, and conductivity properties. The middle layer is made up of polyester monofilament yarn which decides the thickness of fabric, and the two outer surfaces of the fabric were made from polyester multifilament yarns.

The Relationship Between the Structural Geometry of a Textile Fabric and Its Physical Properties I Literature Review» by Stanley Backer A. Introduction The production of textile fabrics to asst the require- ments of industrial, household, and apparel uses is a threefold problem involving.

The physical damage of the fabric is the most common cause in the process of textile use. It is mainly divided into two types: one is damage caused by a one-time external force, one is wear caused by long-term use. Today we discuss the fabric's one-time break in. The use of the three-dimensional (3D) printing technique is gaining popularity due to its ability to produce products with minimum waste.

3D printing can be used to add polymers onto woven fabrics to produce novel structures. This research work concentrated on the study of the fabric properties affecting the adhesion of Polylactic Acid (PLA) polymer onto selected fabrics. Physical and Mechanical properties of various fibers Equation for maximum warp yarn displacement (h1) and weft yarn displacement (h2) Yarn and fabric strength relationship.

Handle, drape and shear. Warp knitting is the sequential formation and interlinking of loops in an axial direction on a lateral array of needles with at least one separate thread being supplied to each needle.

The loops are joined together in a width-wise direction by moving the threads back and forth between adjacent needles. Manufacturing near-net shape preforms of fibre-reinforced composites has received growing interest from industry.

Traditionally, a preform was made from 2D fabrics, but recently, it has been shown that 3D textiles can be used with success; with weaving being the predominant technology for carbon fibre composites. In 3D weaving, weft, warp and binder fibres run across, along and .