Developments in Textile Continuous Processing Machineries
365
Machine consists of following subassemblies:
2.5.1 Infeed
The Infeed unit is used for the introduction of the fabric from batch carriers. The
infeed drive is guaranteeing the tensionless fabric transport to the machine. The fabric
tensioner is used to set the necessary fabric tension if required.
J-Scray at Inlet and Exit of Machine
J-scray stores fabric when enabled. It is use for interruption free operation. In a
continuous operation, the machine continues to run with unchanged speed when a
batch is changed. In this mode the fabric infeed always features a J-scray and an
automatic batch change program is carried out.
2.5.2 Pre-washer (Desize Wash)
The washing module washes out the hydrolysed starch and other impurities from
desized fabric. The washing process is divided into several washing steps. Different
manufacturers use different technologies to improve washing efficiency. Some of the
examples are,
Unipulsa
In this system, a pulsating perforated drum is used which gives high turbulent, intensive flow of liquor through fabric resulting in effective removal of hardly soluble
impurities.
Vacuuset (Effecta by Goller)
Vacuum slit is used for economic water removal from fabric being processed. The
technology can be used in washing off process which is used after desizing, pretreatment and dyeing. Thus, apart from extracting excess water, many other impurities
such as lint, emulsified and disperse contaminants, hydrolysed dyestuffs and sizing
agents can also be removed. The fresh water consumption is considerably reduced
due to the increased degree of concentration that develops during the ensuing washing process. Partial disposal of this higly polluted liquor can reduce waste water
contamination considerably (Fig. 19).
365
Machine consists of following subassemblies:
2.5.1 Infeed
The Infeed unit is used for the introduction of the fabric from batch carriers. The
infeed drive is guaranteeing the tensionless fabric transport to the machine. The fabric
tensioner is used to set the necessary fabric tension if required.
J-Scray at Inlet and Exit of Machine
J-scray stores fabric when enabled. It is use for interruption free operation. In a
continuous operation, the machine continues to run with unchanged speed when a
batch is changed. In this mode the fabric infeed always features a J-scray and an
automatic batch change program is carried out.
2.5.2 Pre-washer (Desize Wash)
The washing module washes out the hydrolysed starch and other impurities from
desized fabric. The washing process is divided into several washing steps. Different
manufacturers use different technologies to improve washing efficiency. Some of the
examples are,
Unipulsa
In this system, a pulsating perforated drum is used which gives high turbulent, intensive flow of liquor through fabric resulting in effective removal of hardly soluble
impurities.
Vacuuset (Effecta by Goller)
Vacuum slit is used for economic water removal from fabric being processed. The
technology can be used in washing off process which is used after desizing, pretreatment and dyeing. Thus, apart from extracting excess water, many other impurities
such as lint, emulsified and disperse contaminants, hydrolysed dyestuffs and sizing
agents can also be removed. The fresh water consumption is considerably reduced
due to the increased degree of concentration that develops during the ensuing washing process. Partial disposal of this higly polluted liquor can reduce waste water
contamination considerably (Fig. 19).