Dhall Group

hot impregnation offers several advantages because the lye penetrates faster & more evenly into yarn core and requires shorter impregnation time of 25 to 30 seconds & ensures even & uniform mercerising effect across the entire width & thickness. Main tank is of robust construction. One of main feature of dhall design is bottom stainless steel buyoant drums, floating in the liqour & this offers several advantages such as :

• far superior mercerising effect because displacement / weight ratio of 520 tw caustic liqour imparts a buyoant load of about 50% more than conventional systems.
• since nip line is full sbmerged inside the caustic liqour hence impregnation is always uniform.
• no spray pipes are required.
• very little maintenance needed since there are no bearings inside the liqour for the bottom buyoant drums.
• those lower buyoant drums are continuously in touch with top rubber rolls due to their floating condition.
• a heavy duty 8 tonnes nip pressure pneumatic mangle is provide after the impregnation tank.
• indirect heating system for hot mercerising.

• For customers who wish to handle small production.
• Carry out the processes of caustic treatment & stabilizing.
• Machine is ideal for those who wish to handle small production.
• This method guarantees proper mercerising effect.
• Subsequent washing and neutralising is carried out on separate washing range or jiggers.

• Stabiliser section is exactly similar to impregnation section in design and construction i.e. buyoant drums principle.
• Stabiliser is enclosed to enable attain higher temperature, so that bath viscosity goes down giving better washing efficiency.
• Suitable filters are provided in the liqour circulation system.
• Due to positive guidance of the fabric on rolls from start of impregnation up to exit of the fabric from the stabiliser section mangle width loss is minimised.
• Circulating pumps are arranged alternately to the Io1t & right for effective & uniform lye removal from the fabric during stabilising. This result in optimum dimensional stability of the fabric.
• Stabiliser section is followed by 8 tonnes NIP pressure pneumatic mangle.

for pre-wash. Final wash & neutralisation, highly efficient closed type washing compartments are used.

number of compartments are finalised depending upon each individual production requirements, types & weight of the fabric to be processed etc.
each closed compartment has following salient features :

• totally steam tight design to attain high temperature.
• top rolls positively driven to minimise fabric tension.
• large glass windows provided for easy access & observation of fabric run.
• direct/indirect system heating arrangement.
• totally manufactured from stainless steel.
• large dia guide rolls for creaseless fabric run.
• serpentine flow inside each guide roll in the tank.
• counter current flow provided between closed washing tanks.
• acetic acid added in the last but one tank or last tank for neutrlisation.

production capacity :

single layer - 50000mtrs / day
super imposed layer - 100000 mtrs / day


dhall's mercerising machine has the following salient features :

• uniform impregnation.
• reproducible process conditions.
• capable lo handle several fabric width.
• mercerise effect uniform on the overall fabric width.
• low initial investment
• easy operation with minimal maintenance

the concept :

dhall mercerising machines have been built incorporating vast experience of more than 45 years of building machines. In addition the new machines also take into consideration the latest & new findings of hot morcerisation. Wet on wet mercerising, cold mercerising etc.

mercerising process is essential for high quality pretreatment. Consumption of dyestuff can be reduced by 30% evenness in dyeing is improved and a greater brilliance is achieved. Improved luster, strength and dimension stability and handle of the fabric.

mercerising is to be understood as process for cotton fabric tension treatment with caustic soda 48 - 52' twaddel /28; - 32' be naoh (270 - 330 gpl caustic soda) at 45 to 50 seconds dwelling time & 30 seconds for hot mercerising.

dhall comfin machine is suitable for handle 100% polyester & blended fabrics. Comfin machine imparts soft feel, breaking the stiffness of the fabric.
features :

• feeding of fabric from trolley.
• rubber cylinder is of 400mm diameter with pressure roll pneumatically loaded.
• water coaled cylinder is positive loaded driven by gear box.
• fabric transportation is done by conveyor bell to prevent soiling.
• plaiting of fabric done by positively driven draw roll.
• scray & big batch device provided on request.
• ac inverter multe motor drive system provided.
• grinding roll assembly provided.

dhall compressive shrinking range machine is suitable to handle 100% cotton, rayon, polyester. Lycra & blended fabrics in open width knit form. Machine is suitable to impart 16% shrinking on single run. Laying of fabric along with soft feel & luster improve.

features :

• feeding ol fabric with fabric centering device.
• suitable number of positively driven scroll roll for edge opening of fabric.
• steaming cylinder are positively driven with auto on/off valve for steam.
• rubber cylinder is of stainless steel of 610mm diameter.
• rubber tension & pressure rolls can be motorised on request.
• felt calender main dram is jacketed of 1500 mm diameter with felt drying drum of 750 mm diameter.
• below the fell calendar conveyor bell is provided for easy transportation of fabric.
• felt calender main drum of 800mm diameter on request for smaller capacity.
• piailer assembly is driven separately by gear motor on two wooden winch provided to draw fabric.

dhall mercerising machine have been built incorporating vast experience of more then 45 years of building machines. Intensive impregnation is followed by stabilisation in the stabilising section followed by highly efficient recuperation washing and neutralising.

features

• based on buoyant floating drum principle.
• extremely efficient system offering greater caustic impregnation due to higher nip pressure exerted by floating drums.
• nip line fully submerged inside the caustic liquor ensure uniform mercerizing.
• automatic level controller in impregnater.
• automatic ph controller with acetic acid tank and dosing pump for neutralisation with acetic acid.
• ac invertor drive for the entire machine instead of dc drive system.

Dhall Singeing machine are suitable to offer high quality fabrics.
Dhall machine has complete single box unit with burners & its controls from world famous menzel - USA / Germany.
Thus Dhall Singeing machine is world class machine with economic price level.

Features

• Burner are of international brands.
• Optional design for 2 / 4 / 6 burner.
• Direction adjustment from direct to tangential flame.
• Burner are rotated and automatically
• extinguished when machine is stopped.
• Energy saving and fuel efficient.
• Easy and low maintenance.

dhall continuous desizing ranges are suitable for removing the size material from fabric with the help of rapid enzymes in the impregnator tank & then developed in the steamer for suitable time. Thereafter intensive washing is carried out in the washing range followed by cylinder drier in case required.

features

• impregnator unit provided followed by steamer available in various capacities to meet production capacity.
• all process parameters controls provided.
• ensure perfect & uniform desizing.
• sturdy m/c with easy maintenance.
• low consumption of water & energy.

• equipped with reisky - dhall dyeing padder with two number hydraulic controlled deflection rolls guarantees even & uniform dyeing across entire width.
• machine available for fabric width up to 3200 mm
• gas fired infrared drier provided to avoid migration & predrying.
• pleva- germany moisture controller for precise & uniform control of moisture addition by steam inside hot flu drier.
• hot flue drier: manufactured to handle moisture inside the drier.
• colour dosing pumps from prominent - germany.
• total package i. E. Plc, touch screen. invertors, motors etc from abb or equivalent.
• entire range plc & touch screen controlled with total process controllers for repeated results & easy operation.
• range can be used as
  - cold pad batch dyeing
  - pad dry range
• top rolls for hot flue drier provided with individual motor gearbox assembly and inverter.
• scrays provided at inlet & outlet for continuous operation.
• large dia i. E. 200 mm guide rolls provided for creaseless operation.
• e+l cloth guider.

Advantage for wider with :

• sturdy, vibration - free side walls made of steel plate duly reinforced.
• main finishing drum totally jacketed, can be supplied of 1500mm.
• 2000mm. 2500mm diameter.
• hollow felt drying drum in linear configuration.
• automatic electro mechanical felt centering device.
• electrical graduated felt tensioning device.
• swivelling scroll roller at entry of fabric to palmer.

salient features :

• suitable for tubular, open width knit as woven fabrics, whether natural or synthetic based.
• perfect tensionless conveying system offerslowest residual shrinkage.
• possible for both drying & hear treatment.
• suitable steam, oil, gas heating system.
• can also run three / four layer of fabric side by side.
• automatic temperature control system.
• a. C. Inverter drive.
• a. C. Inverter for blower fan motor.
• plc system. (on request).

• a. C. Inverter on chamber fans.
• mahlo or similar optical bow & weft straightening device.
• non lubrication chain.
• motorised with control for each chamber.
• moisture controller.
• closed circuit tv at inlet desk.
• intercom system.
• water cooled cylinders at the outlet.
• plc with touch screen.
• 150mm thick insulating panels.
• automatic chain lubrication system.

Dhall continuous dyeing range are suitable for dyeing reactive, vat, sulphur dyes etc. Uniform colour pick- up is ensured with heavy duty padder & there after developed in the steamer. Suitable number of efficient washing compartments guarantee uniform washing and there after drying of the fabric in the cylinder drier. 

Features

• Perfect and uniform dyeing results.
• Sturdy M/C. with easy maintenance.
• All process parameters controls provided.
• Suitable for all types of dyes ie reactive vat sulphur etc.
• Available in various capacities to meet production requirement.
• Padder designed to confirm uniform squeezing across the entire width.
• Ideal for continuous dyeing without any batch to batch variation.
• Chemical dosing & preparation system.

dhall stenter machine can handling wider width fabric up to 3600mm & have installed several number of machine in india and abroad.

Dhal'sl closed washed compartment are versatile and used for various applications in washing ranges .

We guarantee single passage washing of reactive printed or dyed fabrics in open width. All washing ranges are built from chemical resistant quality stainless steel i.e: AISI-316.

Dhall's Relax Conveyor Washer is of 150/300 meters capacity, fabric content is ideally suitable for applications for relaxing, for efficient removal of thickeners, weaving oils etc.

Dhall's water blade washing compartment allows design of washing ranges suitable either as washer for printed, dyed fabrics or practically any application.