use of steaming in textile processing machinery

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use of steaming in textile processing machinery

Text of use of steaming in textile processing machinery

  • 1. UNDER THE GUIDANCE OF (Dr.) USHA SAYED

2. Introduction Steaming is one of the most important processes in textile processing such as well as being widely used in pretreatment, dyeing, finishing and printing processes has come a long way from its traditional associations with locomotives and the Industrial Revolution. Steam today is an integral and essential part of modern technology. Without it, our food, textile, chemical, medical, power, heating and transport industries could not exist or perform as they do. Steam provides a means of transporting controllable amounts of energy from a central, automated boiler house, where it can be efficiently . 3. Reasons for using steam Steam is efficient and economic to generate Steam can easily and cost effectively be distributed to the point of use Steam is easy to control Energy is easily transferred to the process The modern steam plant is easy to manage Steam is flexible 4. Types of Steamer 1.Continuous steamer 2.Discontinuous steamer 1.Continuous steamer Festoon steamer Hand bowl Tower or cymni type Rainbow type 2.Discontinuous steamer Cottage type steamer Vaccum high pressure Belt or stand type 5. BEN-BLEACH Pretreatment system Desizing, scouring and bleaching in one single run In the REACTA steamer the chemicals react with the fibers themselves and the accompanying substances. The combination steamer with tight strand cloth run and plaiting on a roller bed permits reaction times of 1 to 60 minutes. An automatic steam conditioning and regulating station guarantees constant conditions and an air free atmosphere. An absolute must for high pretreatment quality. 6. REACTA Modular steamer and retention accumulator Crucially important to any continuous pretreatment range is the steamer. Here especially therefore, economy and flexibility must be combined in optimum fashion. The building block system devised by Benninger enables a steamer ideally suited to industrial requirements to be assembled for any duty from proven basic modules. Alternatively used as a steamer, or retention accumulator for soaping, with spray water circulation and saturated steam atmosphere 7. Crease free operation is a matter of course Fabric inlet The cloth is let into the steamer through a steam lock, guided over big drive rollers and brought at once to the reaction temperature. Steamer draw-off section While still in the steamer, the fabric is drawn off over a short distance to the appropriate guiding elements, expanded and centered fed into the steamer outlet with water lock to secure steam tightness. Both counter current and high temperature generate the high washing effect. Liquor separation is created by the pulling device at the exit. 8. GOLLER COMPLEXA 1. Horizontal Steamer 2. Vertical Steamer 3. Rollerbed And Bypass 4. Washing Range 5. sump heating 9. Bleaching steamer 10. BEN-COLOUR The advantages of the continuous dyeing process and the flexibility of a small size range are here combined! EXTRACTA-BECOFLEX compartments are utilized for post treatment Possible applications PAD-STEAM process for vat and reactive dyestuff (PAD-DRY is carried out in a separate range) 1-bath (all in) PAD-STEAM process with sulfur dyestuff (cotton) 2-bath (wet/wet) PAD-STEAM process vat dyestuff (cotton) 1-bath (all-in) PAD-STEAM process with reactive dyestuff (cotton) 2-bath (wet/wet) process with direct dyestuff (cotton) ARTDENIM ring dyeing process with reactive or sulfur dyestuff 11. Bifunctional dye steamer for reproducible Constant saturated steam conditions Benninger feeds to steam for humidity control through a steam conditioning station. The steamer roof is heated; roof and front and back side are well insulated. The water lock at the steamer exit is a critical part of equipment for a successful process. The temperature is controlled via the water feed and low water volume ensures constant process parameters. Automatic cleaning device Geometry and drive system ensures crease free cloth run. Tension differences caused by shrinking or stretching of the cloth in the steaming process are equalized immediately. At the entry of the fabric into the steamer, a lip heating and an exhaust suction fan for excess steam prevent condensate drops at the entry area. REACTA 12. Continuous PAD-DRY -PAD-STEAM Process Possible applications PAD-DRY/PAD-STEAM process with reactive or vat dyestuff (cotton) PAD-THERMOSOL/PAD-STEAM process with reactive and disperse dyestuff (cotton/polyester) PAD-THERMOSOL/PAD-STEAM process with vat and disperse dyestuff (cotton/polyester) PAD-DRY/THERMOFIX process with reactive dyestuff (cotton) PAD-DRY/PAD-DEVELOP process with naphtol dyestuff (cotton) COLD PAD BATCH dyeing process with reactive dyestuff (cotton) 13. Continuous pad steamer 14. Universal steamer DH / DHe The Universal steamer type DH / DHe is equipped with the UNIVISION process controller. This gives it wide adjusting ranges for temperature, humidity, dwell time and fan speed. Single and serial trials with small material samples are possible with the DH / DHe. High-temperature steaming, i.e. short time curing and setting of printings and pad dyeing in superheated steam (hydro-dry) within a temperature range of 100 250 C and at a steam content between 10 and 100%. Optional additional components enable treatments in the Econtrol procedure at low steam content of 25% for reactive dyes. Drying, curing and setting at temperatures up to 250 C. Steaming with saturated steam (100 C). optional process oriented add-on components Econtrol procedure MXL procedure Infrared radiation pyrometer: enables the exact, current surface temperature and the resulting residual humidity to be determined. Electric steam generator: The DHe type is equipped with an integrated electric steam generator..this makes the DHe independent of a steam system. The steam quality is also constant Exhaust steam cooler Material holders in various designs 15. r. UNIVISION Touch S the clear, user- friendly process controller 16. Flash Ager For Two Phase Prints Specially designed to wet out the fabric for two-phase steaming. Two-phase printing is usually used for women cloths printed with reactive or vat dyes. After printing and drying, the cloth passes through a chemical mangle and then into a steaming chamber for fixation. The machine is complete with chemical pad mangle with two horizontal rollers particularly suitable for two-phase liquor application. One chrome-plated roller contacts the printed side of the fabric whereas a viscous elastic rubber roller works on the reserve side of fabric. Special pneumatic pistons ensure a regular and uniform squeezing. For reactive dyes, fixation process requires about 15 seconds at 130C For vat discharge fixation process, it requires 30 seconds at a temperature of 130C. 17. Capacity of fabric Mtrs 8 10 12 Roller Width mm 1400 - 3500 Working Speed mt/min 02-18 Dwell Time sec 15 - 90 Steam Consumption kg/hr 120 - 250 Length mm 3500 Width mm RW + 600 Technical Data 18. Steamer for Garment Steamer for garment has the concept of just like our sample steamer for fabric. There is a continuous chain on which at the operator can hand the garments which is already place on hanger, chain is moving with slow speed according to the process time required. After the process is over it comes out at the opposite side where one person can take out the garment hanged on hanger The machine is suitable for dyes like Reactive, VAT, Disperse, Acid and Pigment. Chamber temperature can be maintain from 102C to 108C for low temperature application, 160C to 180C for high temperature application and 130C to 160C hot air for pigments. 19. Laboratory Loop Ager for Digital Printing To develop fabric of any quality like Polyester, Cotton, Viscose and Silk printed with disperse, reactive, vat and acid dyes. Printed fabric of 500mm to 10 meters can be steam in continues fashion in compact steaming chamber. Steam can generate in the chamber itself with the help of electrical heater if desire or can be supplies team from boiler house and steam can be super heated by electrical heater or Thermic fluid heater, if oil boiler is available at site. Machine is made up from complete stainless steel, constructed with gear motor and electric control panel. Capacities available : 800 mm x800 mm, 1000 mm x1000 mm 20. Curing / Polymerizing Machine The fixation of dyes on fabric is made by a polymerization in hot air at 150C. Improved the polymerization process on fabric moves in tension-less condition, there is no rubbing and no lengthwise stretching on printed fabric. The machine is essentially built on a steel frame with insulation panels containing mineral wool. Inside the machine, centrifugal blowers are mounted that suck surrounding air through a filter and blow into the machine chamber. This blowing is done from the bottom, underneath the heaters. In this way, the fresh air is first heated and then mixed with the circulation air. Eventually oil condenses or hydrocarbons, which develop during fixation, are removed through an exhaust fan partially and partially re circulated air-to-air heat recover within the chamber. The fabric transports on free loops, quantity of fabric contain from 50 meters to 250 meters and working fabric width available from 1200mm to 3300mm. Deionization bars are installed at the inlet and outlet to reduce the fabric electrification phenomena. Electric control panel is possible to supply logic programmer. 21. MODEL UNIT TPM-50 TPM-100 TPM-150 TPM-200 TPM-250 Fabric capacity mtrs. 50 100 150 200 250 Standard roller width mm 1400-1700-2000-2300-2600-2900-3200-3500 Working speed mtrs/min 8-12.5 16-25 24-37.5 33-50 41-50 Dwell time min 4-6 4-6 4-6 4-6 5-6 Process temp. required in hot air condition C 100-60 Installed thermal power Min. k. cal/hr 65100 97650 130200 161200