CONTINUOUS DESIZING AND OVER DYEING RANGES

Purposes of Mercerising is to give the dimensional stability to heavy or light quality of fabrics by passing for certain interval through the caustic zone called IMPREGANTOR, then STABILIZER and followed by intensive washing and drying.

Use of ROLLER BED TECHNOLOGY in Impregnator and Stabilizer zone

• When fabric gets in contact with caustic, reaction starts immediately & fabric started loosing it dimensional stability & started to shrink in length as well as width.

• During contact time in IMPREGNATOR & STABILIZER of 30 to 60 SEC, it is necessary that fabric keeps in continuous contact with the rollers instead of being contactless in open or free air  Then reaction of shrinkage is much faster.

• Due to roller bed there is not any chance of open or free air contact with fabric. It helps to avoid minimum shrinkage in the fabric & help to give better dimensional stability.

MRECERISING PROCESS

• Wet on Dry mercerising

• Wet on wet mercerising

CAUSTIC OPERATIONAL METHODS

• Hot Mercerising - This method used for PICE DYED fabric @ minimum temp 40 to maximum 60 degrees with high concentration of BOMEN, depend on different qualities of fabrics.
• Cold mercerising - this method is more useful for YARN DYED fabric @ minimum temp 18 to maximum temp 25 degrees with less concentration of BOMEN, depend on different qualities of fabrics.

PROFITABLE ADVANTAGES

• IMPREGNATOR - BOMEN control by highly advanced technology to get require concentration to avoid unwanted CS in the fabric & excess wastage of caustic.

• STABILIZER - Controlled utilization of week lye on the fabric by minimum addition of fresh water to get control on consumption of water.

• By above both the parameters very easy to minimise the operational cost of CAUSTIC, LYE, ACETIC ACID, WATER & STEAM.

• No reprocessing as not any chance of CS in the fabric.

• Better dimensional stability with improved LUSTURE.

• Require DYEING, PRINTING & FINISHING quality is easily achievable.

FEATURES OF MERCERISING

• STAINLESS STEEL tank for impregnator and stabilizer.

• Bottom grooved stainless steel drums mounted on bearings, fixed position type with low caustic liquor tank.
• Dead weight top roller, rubber coated.
• Circulation pumps system with spray for uniform caustization.
• Impregnator and stabilizer rollers are smaller in diameter (300 mm diameter). This helps inbetter penetration of the caustic as the pressure rollers are at shorter fabric passage. Numbers of rollers are also more in this system, but in enhances the quality. Further, threading of the fabric is much easier and simpler with this design.
• Accurate BOMEN control system, helps to get require BOMEN in short time.
• High efficiency washing compartments.
• Heavy and light squeezers designed at necessary positions for smooth working and control on the machine.
• Entire system and operations controlled by advanced PLC Technology.
• Neutralisation zone controls ACETIC ACID automatically through PLC.