VAPO 2003 ACCESSORIES    
     
Expander for knitted goods  

For jersey or knitted goods, where the selvedges are bound to curl, it is adviceable to install expanding rollers. Such cylinders, fitted at the chamber inlet, assure a complete extension of the fabric before its inlet.
Automatic temperature control and steam flow gauge   It allows to check and optimise the steam flow to the machine istantaneously, thus obtaining important energy savings together with a constant performance.
In addition to that, the measured temperatures are computed to continuously find the most convenient derivates to keep the selected temperature for the fabric treatment.
The PLC operation is mainly dedicated to the automatic valves regulation for indirect roof heating, and to the special and sofisticated cooling system through water injection nozzles.
On the machine with the largest content, the system independently controls the first and second section of the machine. In the first section, a stronger cooling action is required to compensate the exothermic reaction of the fabric.
Double plaiting device   In case 2 fabrics have to be processed side by side, it is adviceable to fit this device consisting of a plaiter and an extracting roller divided in 2 halves with independent drives, allowing to extract the 2 fabrics at slightly different speeds, in order to compensate the possible differences of shrinkage or extension which may arise during the steam treatment.
ARIVISION automatic control  

It is possible to install an automatic supervising system called Arivision.
Its supervision allows to monitor and record the machine functions. The system is integrated into a PC where the operations processed by the machine are graphically displayed.
Every picture is dedicated to a particular function, such as:
- machine regulations
- graphics of temperature
- steam consumption
- troubleshooting
- recipes record: all the working parameters and the graphics may be recorded and recalled at any time. It is also possible to include a machine start/stop menu for automatic water and steam inlet/outlet, at the beginning and at the end of its operation.
Steam saturation tanks   It’s possibile to install special tanks with ceramic rings for steam saturation before injection into the steaming chamber, to compensate the steam instalation over-heating.
Pre-humidifiers
- Preumidificatore mod. A
- Double run pre-humidifier mod. A
- Preumidificatore mod. B
- Double run pre-humidifier mod. B
 		   The quantity reduction of urea and other hygroscopic products in the printing pastes is a vital requirement today.
Particularly common is the reactive fixation of dyestuff on cotton and viscose, where a great quantity of urea is required for the printing pastes. Urea develops ammonia, causing water and air pollution. The content of urea may be strongly reduced if humidity rate is increased in the fabric just before introducing it into the steaming chamber.
Fot this reason, Arioli has developed pre-humidifying devices operating with steam, which, being gaseous, make the system absolutely efficient and reliable, without all the inconveniences deriving from spraying water directly on the fabric.

Model A - Pre-humidifying chamber
It consists of an independent pre-humidifying chamber. Such a chamber is made of stainless steel and insulated by means of a convenient panel.
It is fed with saturated steam, fitted with an exhausting fan and an inner guiding roller. The pre-humidifier chamber has to be installed on the entry frame of the machine in order to allow an immediate fabric inlet in the steaming chamber for the real process of fixation.

Model B - Pre-humidifying double path
It is a device where the fabric runs into the steam first, and then, after rapidly passing into ambient air, enters the main steaming chamber. During the first run into the steam, the fabric regains its natural humidity rate, then it cools down when running in air and, by condensating, it increases its humidity rate; after that, the fabric is finally introduced in the main chamber for the real treatment. The introduction hood, in this case, is directly communicating with the steaming chamber.