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| Issue date:01/04/2008 |
| ATA Journal for Asia on Textile & Apparel - Apr 2008 Issue |
| Source:Journal for Asia on Textile & Apparel |
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| The latest developments of some weaving machinery builders in the international market are introduced below. |
Benninger weaving preparatory equipments for warp quality
Benninger's Multitens, a new yarn tensioning system for weaving preparation, is able to improve warp quality and productivity. The company says that it is currently the only supplier of a closed-loop controlled yarn tensioning system in the market.
The Multitens yarn tensioning system consists of a computer unit, yarn tension sensors and yarn tensioners. These elements form a closed-loop control circuit. In other words, the sensors measure and return actual yarn tension values, which are compared to target values in the computer. The computer then sends a correction value to the yarn tensioner if the actual value does not match with the target value. Each individual thread is regulated in this way. With a creel comprising 1,000 threads, this means that 1,000 closed-loop control circuits are working autonomously.
The new system covers a thread tension range of 3cN to 250cN (centi-Newton) and draw-off speeds of up to 1,200m/min.
The first systems will be supplied to Europe in the second quarter of 2008.
In addition, Versomat warping machine is suitable for preparation of silk yarns, multi- and mono-filaments and staple fiber yarn from fine cotton yarn to coarse woolen yarns. Sections down to a minimum of 4mm can be warped, and economic warp production is achieved with reduced bobbin numbers in the creel. The optimized yarn use and new part-creel mode offer shorter setting-up times.
Comez electronic looms weave various narrow fabrics
Comez from Italy offers innovative electronic weaving needle looms for production of both rigid and elastic narrow fabrics, e.g. laces, ribbons, corsetry articles and ribbons for technical applications.
A ribbon sample made by Comez CLX/EL (right) |
Available in version CLX/EL 500 (with up to eight weaving heads) and CLX/EL 700 (with up to 12 weaving heads), the system offers good production efficiency and flexibility, allowing for fast article changing times while providing easy operation and simple maintenance, according to the company.
It is also fitted with an advanced data control controller that regulates machine functions, monitors production data and allows for the use of numerous electronically controlled devices. Moreover, it governs the latest generation of actuators, featuring good dynamic performance and positioning precision.
New aluminum heald frames from Grob Textile
The aluminum ALtop heald frame from Grob Textile is especially designed for high-performance requirements at a desirable price/performance ratio.
Grob Textile's ALtop heald frame |
Frame staves have good bending strength and a new concept in corner connection design meets application requirements while still providing handling advantages for efficient warp preparation. The company believes it is a cost effective alternative to carbon reinforced hybrid heald frames.
For delicate fabrics, Grob Textile designed a leno heald for riderless heald frames. The new execution utilizes lifting healds made of a single piece of tempered strip steel with 0.2mm thickness. This facilitates an increased working area for leno weaving because there are no welded end loops. The design provides for densities of up to seven leno healds per leno heald frame centimeter and is applicable for warp yarns with tex 60 or lighter.
The company says its extensive portfolio of healds, heald frames and related products/services accommodate with differing needs of technical fabrics types and end uses.
Improving quality with Van de Wiele carpet weaving machines
Based in Belgium, Van de Wiele launched the double rapier Carpet & Rug Pioneer CRP92 machine to obtain a high speed and a low vibration level. It achieves a 20% more output than other similar machines.
The Van de Wiele CRP92 machine weaves carpet and rugs |
Numerous carpet qualities can be woven on the machine, from oriental to trend setting modern designs in wool, polypropylene, acrylic, viscose, silk, nylon and polyester.
The patented split lancet holder for central pile draw-in reduces pile yarn tension and increases weaving efficiency. The optional Servo Driven Shaft motion, with timing difference between tight warp and slack warp, guarantees a clean back with less incorporated pile and allows quick weave structure changes, the company says.
Patented split lancet holders on CRP92 reduce pile yarn tension and increase weaving efficiency |
The company also developed a special three-rapier weaving technique to insert three fillings at the same time and weave three-shot structure with a 50% increase in output as on a double rapier machine. It can be applied to hand-look carpets and shaggy-loop carpets.
The Hand Look HLX93 machine produces carpets with a hand-knotted look back in reed 700d/m and eight color frames. Crystal sharp designs are shown on the front and back of the carpet, as single pile rows per design-row are woven, without mix contours or missing ends.
ITEMA Weaving provides advanced projectile and airjet machines
With the development of rapier and airjet weaving machines, the projectile weaving machine finds its way into special applications in the production of high-quality denim and various technical textiles, according to Sultex of ITEMA Weaving.
The Sulzer Textil P7300HP projectile weaving machine features a new Active Projectile System (APS), offering reliable weft insertion. The new short break stop motion also helps detect and repair the occurring of short picks, which can happen with elastic and delicate yarns. Serious defects in the weave are thus avoided.
Sulzer Textil P7300HP weaving machine |
Its maximum weaving width is extended to 6.55 meters, making it possible for producing various technical textiles such as agro- and geotextiles. Fabrics wider than three meters can be woven economically in two panels. The sley drive is optimized, in particular for the production of heavy and densely-woven technical textiles.
High-quality denim can be also manufactured by the P7300HP in two working widths, 360cm and 390cm, the company says. In two-panel weaving of these fabrics, it achieves a speed of 400 rpm and a weft insertion rate of more than 1,550 m/min. The machine provides additional advantages such as reduced servicing and maintenance costs and improved fabric quality.
Additionally, ITEMA Weaving unveiled the new ITEMA L88 airjet weaving machine, which achieves high fabric quality as a result of low warp loading and clear shedding.
The machine attains a high level of productivity with up to 800 picks per minute and a maximum weft insertion rate of 1,800 meters per minute. It is also environmentally friendly with minimal compressed air consumption.
The ITEMA EK 505 rapier weaving machine is another system that delivers good fabric quality. It weaves a variety of fabrics, from filament yarns, fancy yarns for upholstery fabrics to dyed cotton for women's outerwear.
Innovative drive and control concept unveiled by Dornier
Lindauer Dornier launched a new Concept Loom Study (CLS) technology carrier last September. It is a new main drive and control concept for the registered "SyncroDrive", which is patented and intended for high-performance weaving machines with dobby shedding motions. It offers improved stability of rotational speed.
Dornier airjet weaving machine with CLS |
The drive system of the new CLS enhances the speed potential of the weaving machine and dobby motion, thus allowing a production increase of up to 25%, compared to current standards.
The new Dornier airjet weaving machine with CLS produces different kinds of fabrics, e.g. fine worsted at a speed up to 850 rpm.
In the production of technical textiles, for example a 540 cm wide fabric for digital printing (1.100 dtex), a Dornier weaving machine with the registered EasyLeno 2T unit is able to work up to 2,000 meters of filling inserted per minute.
Lindauer Dornier achieved a sales turnover of 221 million euros last year, up from 212 million euros in 2006.
Mesdan promotes yarn splicing in weaving
Due to recent market changes, there are more new technologies that work with knotless yarns and the increasing need of yarn quality standardization, the demand for knotless plied yarns, according to Italy-based Mesdan.
Mesdan splicers can be used in warping |
As far as weaving is concerned, plied yarns splicing is mainly applied in the areas of assembly winders and two-for-one twisters (TFOs); warping either on beam or on creel (such as ball-warping for denim); re-winding to recover waste yarns after warping; re-beaming for denim and indigo dyed yarns; and weaving for top-to-tail transfer of weft yarns. Hence, Mesdan offers various devices including Jointair air splicer; Illman wrapping splicer; Aquasplicer for air plus water splicing; and Hot-Jointair for hot-air splicing.
The company says that solutions it offers splice an extensive range of yarn counts and materials such as cotton, wool, synthetics, linen, silk, cashmere, Siro yarns, filament, jute, chenille, elastic yarns, OE yarns, metallic yarns, aramid yarns, carbon fibers and glassfiber.
Nybelt tangential belts used in various applications
China-based Nybelt Corporation, aka Jinan Tianqi Technical Belts Co Ltd, produces an array of tangential belts, spindle tapes and roller coverings applicable to textile machinery.
The new series of tangential belts of Nybelt are designed to meet special needs of textile machinery such as open-end spinner, two-for-one twist and draw-texturing for synthetic filament with a long performance life and high speed. One of the best sellers is nylon sheets wider than 540mm.
Roller coverings are produced in rolls of 100m in length with standard width of 100mm, 50mm and 38mm.
Picanol electronic machines weave technical fabrics
Picanol develops, produces and markets high-tech weaving machines, especially for technical fabric producers.
The company provides weaving machines with advanced electronics, such as the Sumo direct-drive main motor, which reduces power consumption and diminishes the need for expensive maintenance schedules. Among other features, the machines have an electronic speed control.
Picanol's OptiMax rapier weaving machine is able to produce car seat fabric and other technical textiles |
OptiMax rapier and OMNIplus 800 airjet weaving machines can be used for weaving airbag fabric, and they can be equipped with Jacquard to weave one-piece-woven (OPW) cushions.
OptiMax rapier weaving machines are equipped with free flight rapiers, so that warp yarns need not to be sized, and it is possible to produce denser fabrics without giving up much on speed. On the other hand, the OMNIplus 800 airjet machine with the patented Autospeed system adjusts its speed for optimum quality, regardless of the yarn characteristics throughout the bobbins.
The two systems are also suitable for manufacturing a wide variety of products, such as awning fabrics and light tent fabrics; car seats; coating fabrics; decatizing cloth; gauze, flocking backing, Osnaburg and tape backing; fine glass fiber fabrics for printed circuit boards; industrial glass fiber; light filament fabrics, parachute and computer ribbon; tire cord; workcloth and protective clothing; as well as heavy filament fabrics, Cordura and shoe fabrics.
Stäubli Jacquard machines for home textiles and carpets
Multinational Stäubli Group offers high-performance Jacquard machines for producing home textiles, carpets and other products.
Stäubli LX 1602 (left) and LX 3202 Jacquard machines suitable for decorative home textiles |
The LX 1602 and LX 3202 Stäubli Jacquard machines are suited for weaving of flat and terry fabric. The electronically controlled high-performance LX-models are designed to operate at high speeds and loads for use on airjet, rapier and projectile machines.
The LX 1602 is available in the format range of 1,408 to 5,210 hooks, while a larger version, the LX 3202, in the range of 6,144 to 14,336 hooks, can be expanded to 24,576 hooks by combining two Jacquard machines.
The LX models are applicable for producing home textiles, e.g. furniture, decorative material or tapestry, silk fabric, seat covers and terry cloth, and also dress materials and technical items.
On the front of carpet making, Stäubli supplies electronically controlled, double-lift and open-shed Jacquard machines, LX 2492. They can also produce velours, plain weaves, weft-reinforced fabrics and double-faced fabrics, at high speeds. With its cam drive, coaxial shaft system, shed opening and inclined shed with fine adjustment, the system is reliable and easy to handle.
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| Copyright © Adsale Publishing Limited. Any party needs to reprint any part of the content should get the written approval from Adsale Publishing Ltd and quote the source "ATA Journal for Asia on Textile & Apparel", Adsale Textile English Website - www.AdsaleATA.com. We reserve the right to take legal action against any party who reprints any part of this article without acknowledgement. For enquiry, please contact Editorial Department. |
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| Copyright © Adsale Publishing Limited. Any party needs to reprint any part of the content should get the written approval from Adsale Publishing Ltd and quote the source "ATA Journal for Asia on Textile & Apparel", Adsale Textile English Website - www.AdsaleATA.com. We reserve the right to take legal action against any party who reprints any part of this article without acknowledgement. For enquiry, please contact Editorial Department. |
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