Textile Technology

TEXTILE TECHNOLOGY Textile technology in spinning covers blow room, carding, drawframe comber, speedframe, ring frame, winding, fibre testing, yarn testing etc. I am a textile technologist , I had the desire to create a web page on TEXTILE TECHNOLOGY and hence this attempt. With my limited knowledge on webpage designing,i would like to share some information with you.  Success of business is to maximise the profit. Choosing the right product mix is one way of maximising the profit. How to choose the product mix? Linear Programming is one among the solutions. But Unfortunately LP is not being used in the Textile Industry. To read more about LP please click PRODUCT MIX USING LP FOR A SPINNING MILL TEXTILE COSTING FACTORS AFFECTING OVERALL CONTRIBUTION- CASE STUDY USING LP

ARE YOU LOOKING FOR YARNS The greatest test of courage on earth is to bear defeat without losing heart  Raw material represents about 50 - 65% of the production cost of a short-staple yarn. There are a number of fibre properties which can influence the quality of the yarn. A textile fibre is a peculiar object. Fibre properties vary very much within the lot. Optimal conditions can be obtained only through the mastery of the rawmaterial. Therefore fibre testing is very very important. FIBRE TESTING-1 FIBRE TESTING-2 COTTON FIBRE COTTON FIBRE-1 EFFECT OF COTTON PREPARATION ON HVI AND AFIS HVI-FIBER TESTING AFIS-FIBER TESTING COTTON LENGTH PROPERTIES EFFECT OF FIBER LENGTH ON YARN QUALITY COTTON STICKINESS

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PROCESSING STICKY COTTON WHITE SPECKS POLYESTER FIBRE Manage your time as you manage your money Mixing is the first and important process in the spinning process. Some information regarding "COTTON MIXING", is listed in this page. COTTON MIXING No body can insult you without your consent Blow room is the process which takes care of opening , cleaning and blending of different fibres used in the mixing.The technological improvements are remarkable in this process. Important points are highlighted to refere please click the link BLOWROOM PROCESS Mistakes are the best teachers High production carding has now become an established practice for shortstaple fibres.Production capacity in recent carding machines can be increased substatially without deterioration in quality. More information about carding is discussed in this link CARDING PROCESS THEORY OF CARDING Reading without thinking is like eating without digesting Metallic card clothing played an important role to improve the production rates on revolving flat cards. High production card would not have been possible without the Metallic card clothing. Moreover the demand for high production and high quality from carding machine put wire manufacturers under pressure to improve their design continuously to meet the requirements. Modern metallic wire is designed for optimum carding performance during the processing of many tonnes of fibre at the highest proudction rates possible, and with the least amount of maintenance. CARD CLOTHING 90 percent of your work can be done by your subordinates and you genuinely get paid only for 10 percent Drawframe contributes less than 5% to production cost of yarn.But its influence on quality is very big, because drawing is the final process of quality improvement in the spinning mill and quality of drawframe sliver determines the final yarn quality.For more information please click DRAWING PROCESS AUTOLEVELLING Most problems are really the absence of ideas

 Combing is the process which serves to improve the raw material.Combed yarn is stronger, more uniform, has greater shine and is smoother and purer.The quality improvements are obtained at the cost of additional expenditure on machines, floor and personnel, together with a loss of rawmaterial.More iformation in COMBING PROCESS The greatest loss is the loss of self-confidence  Roving bobbin is the ideal package form for supply of material to the ring spinning frame. It is very convenient for transport and storing.Eventhough drawframe produces a sliver that already exhibits all the characteristics required for making the yarn, the roving frame is forced upon a spinner as a necessary evil for two reasons. They are 1.higher draft 2.drawframe can feeding creates more problem More information in SPEED FRAME Do important jobs now before they become urgent  The ring spinning will continue to be the most widely used form of spinning machine in the near future, because ring spinning still offers the greatest flexibility in application and supplies yarns of a quality that cannot be equalled by the new technologies owing to technological reasons. More information in RING FRAME RINGS AND TRAVELLER COM-4 AND ELITE SPINNING A pessimist finds difficulty in every opportunity, the optimist finds opportunity in every difficulty  Winding is the process which results in producing a good package of long length and fault free yarn. Most of the spinning mills use automatic winding machines. Quality of yarn and package and winding machine production are improving day by day. The requirements of package quality and yarn quality is also very high for the present knitters and weavers. WINDING YARN FAULTS AND YARN CLEARING YARN CONDITIONING The more time spent on self improvement, the less there is to criticise others.  Variables in a spinning mill is extremely high e.g., rawmaterial, atmospheric conditions in a plant type of machines,technology adopted, skill level, investment concepts, market requirements, etc. Since

the variations are innumerable, it is a must to optimise the process parameters to produce a good quality yarn at a lower manufacturing cost. Some information and guidelines for fixing parameters is given in the following pages. PROCESS PARAMETERS IN BLOWROOM PROCESS PARAMETERS IN CARDING PROCESS PARAMETERS IN COMBING PROCESS PARAMETERS IN DRAW FRAME PROCESS PARAMETERS IN SPEED FRAME PROCESS PARAMETERS IN RING SPININING CONSTANTS AND CALCULATIONS Theory without Practice is sterile, and Practice without Theory is futile  Yarn occupies the intermediate position in the manufacture of fabric from raw material. Yarn tests are therefore essential, both for estimating the quality of the raw material and for controlling the fabric produced. The important characteristics OF yarn is discussed here. YARN TESTING YARN EVENNESS-1 YARN EVENNESS-2 YARN HAIRINESS STUDIES ON YARN HAIRINESS BY MR.KAMATCHI SUNDARAMVOLTAS, INDIA BARRE IN FABRIC YARN REQUIREMENT FOR KNITTING  The textile Industry uses compressed air power in some machinery or other, for instance blow room, comber, spinning frame, loom, splicers to name a few. With the use of more sophisticated, high production machinery the need for more and more complicated Pneumatic controls are necessitated. To have minimum breakdowns and reliable performance with minimum failure, in other words, to have good quality products, the compressed air supplied to the machine should be of the highest order, both in QUALITY and QUANTITY. COMPRESSED AIR You can either be a boss or a leader. Decide.  Atmospheric conditions have a decided effect on textile materials, especially during processing.For this reason it is essential that the temperature and moisture content of the air within the mill be controlled. The exact degree of temperature and relative humidity will vary depending upon the material and department.

HUMIDIFICATION PSYCHROMETRY AND HUMIDIFIACTION It is better to make a first class soup than a second class painting  Spinning Industry was consdiered to be a Labour intensive unit. But now it is considered to be a power intensive unit due to automation and increasing power cost. Moreover a spinning unit uses a lot of Induction motors of capacity ranging from 0.25 KW upto 70KW , a lot of Electronic components like DC Drives, PLC controls, Processors, Inverters, SCRs etc. Hence it is a basic requirement for the technologist to understand the basics of Electrical, Electronics and Power etc ELECTRICITY INDUCTION MOTOR POWER FACTOR

SPINNING MACHINES:  BLOWROOM     Crosrol Lakshmi Rieter Trutzschler  CARDING      Marzoli Lakshmi Rieter Trutzschler Crosrol  COMBER     Marzoli Lakshmi Rieter Toyoda  DRAW FRAME    Lakshmi Rieter Vouk  SPEEDFRAME     Lakshmi Zinser Toyoda Marzoli  RING SPINNING      Toyoda Lakshmi Rieter Zinser Suessen  OPEN END    Lakshmi Schlafhorst Rieter  WINDING   Savio Schlafhorst

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