Textile Dryer
In the textile finishing unit; a dryer uses to dry the knit, woven fabrics, and dyed yarn. But the drying process and drying mechanism of yarn and fabrics are different from one to another. In the dryer, drying and curing are done as required.
Drying:
The main function of a textile dryer is to dry the textile fabrics. Drying is defined as a process where the liquid portion of the solution is evaporated from the fabric.
Curing:
Curing can be defined as a process following the addition of a finish to the textile fabrics, in which materials are heated for a certain time at elevated temperatures to effect a chemical reaction. This curing operation is most common in finishing the printed goods.
Considering Points for Selecting Relax Dryer:
The following points should consider during buying a dryer.
- Heating methods: The textile fabrics may be heated by gas burner or steam.
- Chamber: Number of chamber.
- Burner: Number of burner.
Drying Machine Parameter Set Up For Relax Dryer:
Here I have given two relax dryer machine parameters.
Ruckh Relax Dryer (Germany):
| Machine Parameter | Set-Up value |
Temperature value
| 100oc – 120oc for white shade 120oc – 130oc for light shade130oc – 140oc for the dark shade150oc – 170oc for curing |
| Blower fan setting | Auto |
| Exhaust fan setting | Auto |
| Machine speed | 3-35 m/min; depends on the quality of fabric. |
| Overfeed | 0-40%; depends on fabric consumption. |
| Width of spreader setting | 45-114 cm; depends on the required width of fabric. |
| Burner gas pressure | 10-15 m bar. |
Another, Santex Relax Dryer (USA):
| Machine Parameter | Set-Up value |
| Temperature value | 100oc – 110oc for white shade 110oc – 120oc for light shade120oc – 130oc for the dark shade |
| Blower fan setting | Push-button switch on |
| Exhaust fan setting | Push-button switch on |
| Machine speed | 1-12 m/min; depends on the quality of fabric. |
| Overfeed | 0-45%; depends on fabric consumption. |
Now a day, China and India manufacture various type of textile dryer which is standard in quality also cheap in price.
Useful knowledge for textile Engineers