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Jacquard machines to reliably handle heavy loads at Here, the new TIEPRO warp-tying machine proves
the highest speeds. These machines are equipped extremely valuable. Terry is typically made of different
means of an integrated light barrier, resulting in actual tension being applied. (IDF 1 break draft 1.0). with advanced NOEMI technology for hook selection. staple fibers situated within the standard yarn
perfect synchronisation between card and IDF. The The second diagram illustrates that IDF 2 and IDF 1 This technology consists of a redesigned electronic counts. The TIEPRO warp-tying machine masters
levelled loop permits high change speeds. This both have the same trend, i.e. that the yarn strength architecture and a reduced number of connectors, this with double-end detection and the auto-reverse
ensures a higher efficiency at the card, especially decreases with increasing total draft. Compared to which assures extremely stable data transmission. function, achieving the highest efficiency. The warps
when using small rotor cans. IDF 1, IDF 2 shows overall strength at a higher level. Every Jacquard installation integrating the are tied correctly and the tying process does not
This confirms the statement that the use of only one LX/LXL/LXXL machines is equipped with the JC7 deflect the yarns, which would create problematic
drafting zone has a positive effect on the yarn controller, which can drive up to 100,000 hooks and warp tension on the weaving machine and lead to
properties. Stäubli delivers allows for enhanced diagnostics. Using the pattern yarn breakage. The machine can be easily installed
and is rapidly put into operation. Its installation on
import functions this controller can transform a
Development of the IDF 2 Stäubli dobby pattern into a Stäubli Jacquard pattern the stretching frame offers ease in use because it
The IDF 2 has been established on the market for or adapt the pattern between two Jacquard allows high tolerance in terms of parallelism of the
seven years. The advantages of the system are now weaving solutions for machines with different number of module rows. two warps being tied together. The machine features
recognised by the entire professional community, a new separation principle with cones, so spare
competitors and customers. Initially, the shortened separation needles are not required, and the
process was only used with 100 percent cotton – machine remains ready for operation at all times.
preferably from the recycling sector – but today it is every terry application
Terry weaving is a widespread specialization among lifting units, the S3000/S3200 rotary dobbies offer
textile weaving mills in Pakistan. It is a very high load capacity and easy adjustment of the shed
demanding application, whether medium- or opening. Operating 16 or 20 lifting units involves
The combination of Truetzschler cards with IDF 2
gives customers an advantage, because they high-density fabric is being produced. Terry bindings significant forces and results in a very large shed
produce a thin, stable web which is perfectly suited involve heavy forces that must be handled by the opening. Here the reinforced Stäubli e32/33 harness LXL electronic Jacquard machine
to be drawn directly to the desired sliver count – at shed-formation components such as the cam motions perform perfectly. Featuring robust
highest production rates and lowest drafts. If cards motion, rotary dobby or Jacquard machine. Thus, construction, they absorb the dynamic forces caused
produce a heavier web, the use of low drafts is not the machinery must be robust, and the weaving by the high-speed movement and the large shed In order to realize the maximum benefits of a
possible at all, as, for example, from 12 ktex to 5 ktex process must be efficient in order for the mill to opening. The e32/33 harness motions transmit each precisely matched Jacquard system, weavers can
a draft of 2.4 is applied. produce terry fabric profitably. Providing automation and every shed movement to the frames with high also invest in customized Stäubli Jacquard
equipment for weaving preparation and a wide range precision. An additional benefit for the weaving mill is harnesses. These are made of high-quality harness
One versus two drafting zones – technological no longer limited to this. The system is successfully of renowned shedding machinery, Stäubli equips that these transmission elements are maintenance cords and components such as QUICK LINKs that
advantages applied in the processing of 100 percent raw cotton forward-thinking weaving companies to excel in the free. allow rapid harness installation and the new
In order to show the influence of the distribution of and other materials. It thus offers an answer to the worldwide terry market. aluminum comber-board frame that improves heat
drafts on main draft and break draft as opposed to requirements of our customers with regard to dissipation. The harness springs with fastenings
only one draft zone, a yarn of 100 percent raw cotton increasing and necessary flexibility in the production Pakistan’s terry weavers have been relying on Stäubli grouped in 2x8 for terry cloth are specially adapted
(Mato Grosso) with Ne27 was spun in the direct process. shedding solutions for many decades. In frame with a vibration-reducing damping system. The
spinning process with a card production of 170kg/h. weaving applications, cam motions used to be the sectional aluminum pulldown frame allows
With IDF 1, break drafts of 1.0, 1.05 and 1.16 with The handling of the IDF has also been improved. For commonest solution for perfect shed formation. But adjustment of the automatic BLOBAR blowing device
different main drafts were combined. The IDF 2 was example, there is now a retention lock that prevents in the past 10 years, with increasing demands for to facilitate cleaning of the harness springs.
run with drafts of 1.2 to 1.95. The tests showed the the cover of the IDF from always having to be design complexity, density and production speed,
trend across all parameters that IDF 2 with its 1-zone opened completely during the piecing process. terry weaving companies have begun investing in Automatic warp tying for a continuous weaving TIEPRO tying machine
drafting system has clear advantages over IDF 1. Similarly, the use of maintenance-free deep groove rotary dobbies, particularly in the renowned Stäubli process
ball bearings entirely eliminates the need for S3000/S3200 series. Today, Stäubli is present in Jacquard and frame weaving of terry fabrics both Terry weaving is a demanding task, but if the mill
The first diagram shows the influence on yarn relubrication at the delivery rollers: The number of Pakistan terry weaving mills with around 1,000 involve operational processes that can benefit from meets the key prerequisites, this application has its
evenness for a total draft of 1.7. There is clear lubrication points is thus reduced to four. The frame-weaving solutions (cam motions and optimization. This includes the automation of place even in difficult market times. Any mills with
evidence that the break draft in the IDF has a dobbies). time-consuming processes, which when done know-how in terry weaving can benefit from Stäubli
negative influence on yarn parameters. It is self-adjusting lap monitoring of the top rollers, manually are subject to human error and in the worst solutions and enhance their overall efficiency. Stäubli
noteworthy that for all quality parameters, the already known from the draw frames, has now also Solid harness motions for uniform shed formation S3260 electronic rotary dobby case can lead to standstill of the weaving machine. offers not only machinery, systems and components
presence of the first drafting zone in the IDF 1 alone found its way to the IDF. There is no need to readjust Weaving with heavy loads at high speeds – that’s a One of these processes is warp tying. In terry but also a global service network and spare parts
has a negative effect on the results, without any after grinding intervals and changed settings. task in which Stäubli rotary dobbies in combination The optimal Jacquard system – a combination of weaving, the pile warps are tied 2 or 3 times, availability even many years after the machine
with Stäubli harness motions excel. Available for Stäubli harness components and machinery depending on the yarn count and size of the loop. purchase.
air-jet weaving machines in formats with up to 20 Jacquard terry weavers can count on LX/LXL/LXXL
November/December 2020 November/December 2020