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PATENTED
Flex-BRAVO is an expendable tube aimed at the requirements of steaming and dyeing of all types of yarns and it is particularly recommended for countinuous yarns with shrinkage (polyester, polyamid, etc.)
Flex-BRAVO eliminates two winding procedures yarn steaming prior to package dyeing is no longer necessary as the same result is obtained simultaneously during the dyeing operation.
The dyed package can then go straight to the next process, avoiding final backwinding.
The structure is desing to allow uniform radial shirinkage along the length of the tube, permitting yarn relaxation next to the wall of the tube.
Optimal distribution of the dye bath gives an even, level dyeing inside, middle and outside of the yarn package.
Flex-BRAVO provides successful "tranfer-tail" operation.
Flex-BRAVO, other than the possibility of allowing a radial shrinkage up to abt 15%, also allows an axial compression, up to abt 5%, that can accur in two ways: By a slight compression of the columns of tubes in order to equate the length of the package columns to the length of the d to the length of the die spindles.
Directly throughout the dye procedure, particularly on those dye spindles with a fixed or gravitational locking system, where the Flex-BRAVO tube compensates itself axially during the phase of column elongration.
The ends of the Flex-BRAVO tube remain unchanged after radial and axial retraction.
Package density can be increased up to 30% compared to an axial compressible dye tube, whilst kepping the same outside dameter of the package, as well as dyeing productivity. |
