Vacuum Chamber
Thermo Tech Engineering manufactured a vacuum system for textile conditioning for its valuable client. Today, TTE system has been installed in Mekotax and applied in conditioning and drying process.
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Conditioning Yarns and Fabrics
High speed spinning machines generate more friction thus giving additional heat to the yarn. As a result of such heat transfer the yarn moisture content is vaporized and disappears. It is well known that dry yarns have worse properties in subsequent processing. Rising speeds in spinning result in decreased yarn quality for other processes.
Moisture regain becomes essential in the textile industry. For quality reasons it is absolutely important to have even distribution of this recuperated moisture throughout the entire yarn package.
Only the vacuum technology provides the conditions for the required moisture regain. Traditional approaches like conditioning rooms become obsolete for economic reasons. High residual times of up to 24 hours, energy consumption and space requirements with high investment costs are their main disadvantages. TTE provide state-of- the- art conditioning systems for economic and efficient moisture regain to improve yarn quality.
Conditioning with Saturated Steam
Vacuum generated by high-performance pumps initiates the conditioning cycle inside the autoclave before the TTE INJECTOR is feeding in the required quantity of saturated steam. Inside the chamber an atmosphere of low temperature saturated steam is immediately formed in equilibrium with vacuum. The deep vacuum makes steam to penetrate deeply into the yarn packages.
The temperature difference between steam and yarn causes steam to condense inside the yarn package. Moisture is absorbed by the yarn and the package is heated up. Prior to wrapping the yarn needs to be cooled down after the cycle.
Conditioning Efficiency: How to ckeck
We recommend to check weight 30 minutes after the cooling period, at the end of the conditioning, and prior to wrapping packaging. Efficiency is the percentage of weight increase compared to yarn weight before conditioning.
Fields of Application
- TTE Conditioning Systems are designed for humidification in the temperature range between 50 and 70 OC. Saturated steam in high vacuum cares for optimal moisture regain in any application.
- TTE Systems are ideal for conditioning waxed yarns. We recommend to use waxes with melting points not higher than 65 OC.
- TTE Conditioning Systems allow heat setting at temperatures up to 95 OC (105 OC) thus offering an excellent price/ performance ratio.
- Pressure Range -1 bar to 0 bar
- Temperature Range 45 to 95 OC
Advantage
For Spinning mills:
- Increase of the moisture content of the yarn.
- Increase of yarn quality, thus providing better market position against competitors with dried out yarns.
For Knitting mills:
- Reduction of fly and dust up to 50%
- Decrease of needle breaks up to 25-35%
- Increase of efficiency up to 10%
- Decrease of thread tension and machine downtimes
- Support of dimensional stability of knitted goods
- Improvement of feel and volume of the goods
- Improvement of friction values
- Improvement of uniformity and improved appearance
- Reduction of electrostatic effects
For Weaving mills:
- Reduction of fly and dust up to 30-40%
- Decrease of thread breaks during the weft insertion, depending on the insert system, up to 15%
- Increase of efficiency up to 2%
- Improvement of feel and volume of the goods
- Improvement of friction values
- Improvement of uniformity of the goods
- Further improvement of efficiency, if conditioned yarn is used in warping room
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