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Conditioning
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Conditioning of Dyed Yarns |
Moisture regain becomes increasingly essential in the textile industry in all sectors.
The quality and weight demands of customers notably in circular knitting and in weaving are increasing day- by- day, because not only the spinning plants take benefit from conditioning yarns and fabrics.
All advantages in strength, elongation and dust reduction are also relevant for dyed yarns...
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Service
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Conditioning Table for 100% Cotton Yarns |
The conditioning process with saturated steam is not a technological secret, but a logical consequence of applied technology. The elements:
- Vacuum suction
- Temperature difference between yarn and steam, and
- Process time
are the relevant criteria for more or less moisturisation effects in the yarns. In order to allow customers to verify the efficiency...
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Ecovac Water Recycling Unit |
Considering that depending on the quantity of vacuum cycles, up to 3 vacuum cycles are possible per hour, the water consumption to make these vacuum cycles sooner or later becomes an important matter.
It is certainly true that water is still abundant in some parts of the world, and it is also certainly true that still many people does not care about excessive consumption of...
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Machine Efficiency Checklist for Conditioners |
How to check the efficiency of a conditioner?
It is true that the handling of temperature based condensation and further evaporation makes it difficult to evaluate the efficiency of a moisturising system. Many manufacturers have their system restrictions and therefore, are not really interested to promote a fact- based system evaluation.
However, checking the efficiency is quite...
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Modernisation of Control Cabinet with DOSITRON 18 |
Welker systems are equipped with the DOSITRON 18 machine control units, which guarantee the outstanding results achieved by Welker machines.
In addition to the precise control of conditioning and steaming cycles, the DOSITRON 18 units ensure accurate performance of all automation, transportation and safety installations.
With a very compatible and comfortable operating device...
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Steam Table - Saturated Steam |
There is some uncertainty how to work with saturated steam. Basically, temperature and pressure are always in balance in an autoclave. When sucking the air out, in vacuum the pressure decreases, and consequently, the boiling point as well.
Therefore, the lower the pressure inside the machines, the lower will be the process temperature in saturated steam status.
In this...
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Water Specifications for SUPERVACUUM Pumps |
The water ring vacuum pumps delivered by WELKER SPINTECH offer SUPERVACUUM (95%)technology.
In order to achieve such high levels of vacuum, the local water quality has to be ckecked and eventually be adjusted with appropriate treatment in order to avoid excessive wear of the pumps.
For this adjustment WELKER SPINTECH offers HIDROMAT water softening units.
Also,for...
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Profile
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Welker Spintech Company Profile |
WELKER was founded in 1856 by Philip Welker, and is therefore, one of the most traditional suppliers for the Textile Industry with more than 150 years of succesful market presence.
In 1941 and the first generation of vacuum steaming equipment was developed and successfully introduced to the market.
All further types of conditioners and heat- setting machines, including those of...
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Automation
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PACKTRACK Transport Automation Solutions |
The conditioning technology demands appropriate space in the plants for
- preparation of cones and/ or pallets
- loading
- unloading
- cooling and
- packaging
In areas where all these activities take place, it is worth to consider an automatic material handling solution, especially if pallets can be used for internal transport and/or for...
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Heat- Setting
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TOWMASTER Tow Annealer |
Tow Annealers are integral part of Polyamide- or Acrylic staple production lines.
Only the annealing process ensures the highest quality in both even fibre relaxation and shrinkage.
Precise settings of temperature, pressure, times and the process sequence guarantee the desired thermofixation effect with reproducible results.
Since the development of vacuum heat- setting...
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| Radial Flow Pre-heating Systems |
Condensation is a general and widely known problem when using saturated steam machines to heat- set yarns.
Water droplets caused by poor control of temperature can cause a variety of defects in the later stages of production such as different absorbtion of dyestuff, change of color, moiré like shadows on the fabrics.
To overcome this problem, WELKER SPINTECH has developed the...
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