Narrow Fabrics Research Articles

Extra thin sidelight-emitting polymer optical fiber narrow fabrics for UV structural adhesive joints: design, preparation and performance experiments

Ultraviolet (UV) bonding technology is widely used across industries. As the curing reaction is initiated via an external light source, the use of fast-curing structural UV acrylates has so far been limited to joint designs with at least one transparent joining part. By introducing a side-emitting polymer optical fiber textile into the adhesive layer, which acts as an embedded light source, the technology can be made accessible for applications with nontransparent substrates such as metals. This paper describes the development of extra thin polymer optical fiber narrow fabrics designed to enable curing of structural adhesive joints. Polymer optical fibers (warp) were combined with different low-titer polyester weft yarns in two fabric design types with different primary out-coupling mechanisms: undulation and surface modification of the polymer optical fibers. The effect of yarn properties, thread densities and weave on fabric quality, geometry and lateral light intensity of each type were investigated. Results showed that narrow fabric production within the tight geometric limits required is feasible. Fabrics manufactured with nontextured yarns at low titers and low weft densities exhibited the highest lateral light intensities for the surface modification type fabric. To compensate for intensity loss over fabric length, investigating light coupling from both sides is recommended for this fabric type. For the undulation type fabric, the lateral light intensity characteristics indicated that the high tenacity yarns are promising candidates for the fabrication of low sidelight attenuation fabrics through modulation of the weft density.

Measuring the Flex Life of Conductive Yarns in Narrow Fabric

Due to constant advancements in materials research, conductive textile-based materials have been used increasingly in textile-based wearables. However, due to the rigidity of electronics or the need for their encapsulation, conductive textile materials, such as conductive yarns, tend to break faster around transition areas than other parts of e-textile systems. Thus, the current work aims to find the limits of two conductive yarns woven into a narrow fabric at the electronics encapsulation transition point. The tests consisted of repeated bending and mechanical stress, and were conducted using a testing machine built from off-the-shelf components. The electronics were encapsulated with an injection-moulded potting compound. In addition to identifying the most reliable conductive yarn and soft–rigid transition materials, the results examined the failure process during the bending tests, including continuous electrical measurements.

إمکانية الحصول علي تأثيرات نسجية وجمالية جديدة للأقمشة الضيقة المنفذة بأسلوب المزدوج لإثراء تصميم الملابس

إمکانية الحصول علي تأثيرات نسجية وجمالية جديدة للأقمشة الضيقة المنفذة بأسلوب المزدوج لإثراء تصميم الملابس يهدف البحث إلى بيان العلاقة بين التصميم النسجي والخواص الوظيفية والجمالية للأقمشة الضيقة ولتحقيق هنا الهدف تم إنتاج عينات من الأقمشة الضيقة باستخدام متغيرات الدراسة وهم على النحو التالي : التصميم النسجي ونمرة الخيط ولون الخيط وتم إنتاج 9 عينات باستخدام ماکينة الجاکارد Muller مع ثبات کثافة الخيط ( 40حدفة) وبعد إنتاج عينات البحث تم إجراء الإختبارات المعملية على الأقمشة المنتجة بمعامل شرکة الغزل والنسيج بالمحلة الکبرى للکشف عن علاقة متغيرات الدراسة بالخواص الوظيفية والجمالية للمنتج (مقاومة الاحتکاک للقطع ,قوة الشد,الاستطالة) ، وبعد تحليل نتائج تلک الإختبارات إحصائيا وتمثيلها بيانيا توصلت الدارسة إلى : أن القماش المنتج بأسلوب الدمج بين التصميم النسجي المزدوج والنسيج غير مزدوج هو الأفضل بالنسبة لجميع الخواص الوظيفية وأيضا الجمالية وفى النهاية قدمت الدارسة مجموعة من التوصيات والمقترحات ببحوث مستقبلية والتي في حال تحقيقها تساهم في تحسين الخواص الوظيفية والجمالية للأقمشة الضيقة وتنوع التقنيات النسجية في إنتاجها يزيد من اختلاف التأثيرات النسجية مما ينتج استخدامات متنوعة والتي بدورها تؤدي إلي الارتقاء بقيمة وجودة المنتج المصري . The possibility of obtaining new textile and aesthetic effects of narrow fabrics implemented in a dual style to enrich the clothing design The research aims to show the relationship between the textile design and the functional and aesthetic properties of narrow fabrics, and to achieve here the goal samples were produced from narrow fabrics using the study variables and they are as follows: the tissue design, the thread of the thread and the color of the thread. After producing the research samples, laboratory tests were conducted on the fabrics produced in the labs of the Textile Company in Mahalla Al-Kubra to reveal the relationship of study variables to the functional and aesthetic properties of the product (friction resistance to cutting, tensile strength, elongation) After analyzing the results of these tests statistically and graphically representing them, the study concluded that: the fabric produced in a way that merges between the double textile design and the non-double fabric is the best for all functional and also aesthetic properties. In the end, the study presented a set of recommendations and proposals for future research that, if achieved, contribute to improving the properties The functional and aesthetic of narrow fabrics and the diversity of textile techniques in their production increases the difference in textile effects, which results in a variety of uses, which in turn leads to an improvement in the value and quality of the Egyptian product.

Aspects of Forming the Fell of a Fabric (Narrow Fabric) Made From Mineral Threads

We have developed a procedure for determining the position of the fell of a fabric, taking into account the accuracy in manufacture of the pivot linkages during production of fabrics made from glass and basalt threads. We have performed calculations for the mechanism for beating up the weft on a narrowfabric loom. The calculated position of the fell of the fabric is fixed using an assembly of stretcher temples and a crossbar, clamped to the loom frame.

Engineering and analysis of gripping fabrics for improved ballistic performance

Previous studies show that fabric construction is one of the key factors affecting the performance of ballistic fabrics. In order to investigate the effect of yarn gripping in fabrics, plain woven narrow fabrics with different widths have been designed and studied. In terms of narrow fabrics, it was found that narrower fabric demonstrates better performance than wider ones under low impact energy due to the better weft yarn gripping effect of the selvages. In the case of higher impact energy, wider narrow fabric shows better ballistic performance in having sufficient material to dissipate the impact energy. Different ballistic panels were made for ballistic testing, with each panel only formed from the same fabric. Performance of narrow fabric panels is disappointing compared to the broad fabric panel due to the discontinuity of the fabric material. A novel broad fabric has been engineered providing both enhanced yarn gripping and material continuity. Tests showed that panels made from such fabrics have improved performance against both back face deformation and projectile penetration.

Tubular Woven Narrow Fabrics for Replacement of Cruciate Ligaments

The human knee is one of the most frequently injured joints. More than half of these injuries are related to a failure of the anterior cruciate ligament. Current treatments (allogeneic and autologous) bear several disadvantages which can be overcome through the use of synthetic structures. Within the scope of this paper the potential of tubular woven fabrics for the use as artificial ligaments has been evaluated. Twelve fabrics made of polyethylene terephthalate and polytetrafluoroethylene were produced using shuttle weaving technology. Mechanical and biological properties of the fabrics were assessed using static tensile testing and cytotoxicity assays. The results obtained within this study show that woven tubular fabrics can be potentially used as artificial ligament structures as they can provide the desired medical and mechanical properties for cruciate ligament replacements. Through the choice of material and weaving parameters the fabrics' tensile properties can imitate the stress-strain characteristic of the human cruciate ligament. Further assessments in terms of cyclic loading behavior and abrasion resistance of the material are needed to evaluate the success in long term implantation.

IMPROVING PRODUCTION TEXTILE TAPES ON NEEDLE NARROW WEAVE MACHINES FOR SUITABLE ENDUSE.

Finally, the weft delivery of the RIEMCHENTRANSPORT was replaced by FOUMISSEUR. In order to find a solution of this problem is investigating the factors affecting the width fabric in the direction of warp and weft. The study of the weft direction has a significant impact on this characteristic, namely weft yarn tension and the weft yarn length in weft feeder. The methodology of this research depends on experimental and analytical approach. It is found that there exists an inverse relationship of weft yarn tension and direct relationship of weft delivery length with tape width. Moreover there is an inverse relationship between warp yarn tension and tape width. This research involves the study of the problem that exists in most of the factories, which produce narrow fabrics, especially on the Needle Narrow Weave Machines (NFRQ). This is problem that the width fluctuation for these fabrics. This sector is considered one of the most important sectors of industrial fabric because of its multiple uses that affect industrial economy, whether linked to the textile or other industries. These tapes are used in the manufacture of medical bandages, normal or adhesive, apparel requirements of elastic tape, tapes of the process of decorative embellishment clothing or other uses like special types of electric cables and so on.

A Study on Traditional Techniques of Hand Braiding in China

According to unearthed materials of braids, hand braiding originate in the last stage of the Old Stone Age China and has a history of over 7000 years, which remains a unique handicraft in our society. In terms of the arrangement of yarns, braiding can be categorized into two kinds of techniques: double system braiding and single system. In ancient China, most braids were made by double system braiding. The technique of single system braiding was at its peak of development in the Zhou dynasty. Around the Han dynasty, diagonal braiding and twist braiding were in fashion, and a complex braiding technique of the combining of the two types of braiding was invented. Since the Shang dynasty, the application of braiding has been limited to narrow fabrics, shaped products, and some special trimmings, such as knots. Double system braiding was directly responsible for the development of machine weaving. Loop braiding and crook braiding are similar to modern knitting and crocheting in many aspects. The scope of braiding application has now diminished, but its technical and cultural significance remains.

The ballistic performance of narrow fabrics

Woven fabrics are widely used in soft body armour. The ballistic performance of a range of narrow fabrics was determined and compared to that of wider fabric panels. In contrast to conventional ballistic fabrics, it was found that the performance of narrow fabrics was highly sensitive to changes in fabric specification. Furthermore, it was shown that square weave fabrics may not necessarily be superior to unbalanced fabrics in narrow fabric form. It was also confirmed that narrow fabrics absorb more energy than wider fabric panels when undergoing direct ballistic impact, particularly when gripped in a two-sided configuration. Ways were sought of utilising these improvements in performance when the narrow fabrics are brought together to make full-width armour panels. Potentially, the observed improvements in performance could have been offset by the lines of weakness between adjacent fabric strips or by the weight of the structure required to grip on two sides. However, after investigating a number of potential solutions, significant improvements in the performance-to-weight ratios over simple fabric armour were achieved using an assembly of narrow fabrics attached to a lightweight composite frame.

Net Shape Woven Fabrics—2D and 3D

Weaving technology has been used for many years to weave net shape products to very tightly controlled dimensions. Numerous examples of narrow tapes, tubular fabrics, and multi-layer belting products can be found in the biomedical, automotive, and industrial fields. In more recent times 2D and 3D woven net shape products have expanded into polar or spiral woven fabrics, integrally stiffened skin panels, and tapered net shape airfoil components. This paper will review the manufacturing technologies used to produce these net shape textile products as well as show examples of the finished textile products and their applications.

Cumulative Geometric Changes in Woven Fabrics with Repeated Flexing'

Extreme structural reorganization sometimes results from repeated flexing of fabrics that are tightly woven from multifilament yarns. This phenomenon has been inves tigated experimentally using a series of specially designed, narrow woven fabrics that were repeatedly cycled in bending under controlled laboratory conditions. The effects of yarn twist and yarn spacing on the extent of this reorganization, called "napping," have been studied. A simple model previously developed for bent waveforms is used to illustrate the mechanism of raised loop formation. Experimental results from the controlled flexing of a variety of fabric constructions suggest that a close match between yarn twist periodicity and weave periodicity is a necessary but not sufficient condition for nap formation in tightly woven, scoured fabrics; the distance between restrictions imposed by crossing yarns must also lie between certain limits for the phenomenon to occur to any marked extent.

The Dyeing and Finishing of Narrow Fabrics

The Dyeing and Finishing of Narrow Fabrics

Narrow Fabrics Group Conference: June 10

Narrow Fabrics Group Conference: June 10

Contrasts in Site-Selection: Factors Which Influence the Location of a Wood-Metal Pattern Shop and a Narrow Fabric Mill

PERHAPS the most important contribution that recent empirical studies have made to the theory of plant location has been the uncovering of certain factors of location which for many years were not analytic parts of this field of speculation. This paper attempts to show these forces by examining the determinants which governed the location of a wood-metal pattern shop and those which controlled the site selection of a narrow fabric mill. These cases present certain sharp contrasts between themselves, but together they serve to emphasize the multiple forms in which location factors appear.' Our analysis in section II of the wood and metal

The Package Dyeing of Narrow Fabrics: a Link between Yarn Dyeing and Piece Dyeing

Journal of the Society of Dyers and ColouristsVolume 61, Issue 8 p. 185-191 The Package Dyeing of Narrow Fabrics: a Link between Yarn Dyeing and Piece Dyeing H. A. Thomas, H. A. ThomasSearch for more papers by this author H. A. Thomas, H. A. ThomasSearch for more papers by this author First published: August 1945 https://doi.org/10.1111/j.1478-4408.1945.tb02363.xCitations: 1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume61, Issue8August 1945Pages 185-191 RelatedInformation

A Primitive Frame for Weaving Narrow Fabrics

A Primitive Frame for Weaving Narrow Fabrics