compact spining

UNIVERSITY COLLEGE OF TEXTILE ENGINEERING

BAHAUDDIN ZAKARIYA UNIVERSITY , MULTAN

�KHURAM SHAHZAD

�M.ZAHID HUSSAIN KHAN

TEAM MEMBERSTEAM MEMBERS

WHAT IS INNOVATION ?WHAT IS INNOVATION ?

��THE PROCESS OF TAKING A THE PROCESS OF TAKING A

CREATIVE IDEA AND TURNING IT CREATIVE IDEA AND TURNING IT

INTO USEFUL PRODUCT, SERVICE INTO USEFUL PRODUCT, SERVICE

OR METHOD OF OPERATION.OR METHOD OF OPERATION.



ContentsContents

•• Introduction Introduction

•• Different innovationsDifferent innovations

•• Compact spinningCompact spinning

•• Types of compact spinning with respect Types of compact spinning with respect

to methodto method

•• Comparison Comparison

•• Benefits towards forthcoming processesBenefits towards forthcoming processes



Some Recent InnovationsSome Recent Innovations

•• Pre cleaner UNIclean BPre cleaner UNIclean B--12,UNIstore A78.12,UNIstore A78.

•• C60,TC 03 cards. C60,TC 03 cards.

•• New double delivery SB 20 draw frame and RSB New double delivery SB 20 draw frame and RSB D40 Autoleveller.D40 Autoleveller.

•• OMEGAlap E65/E75 with 450nips/min with OMEGAlap E65/E75 with 450nips/min with production of 66_68 kg/hproduction of 66_68 kg/h

•• Rieter has new ring frames G35 and Rieter has new ring frames G35 and K45(compact) with 1632 spindles.K45(compact) with 1632 spindles.

•• Rotor machine R 40(440 spinning boxes),BT Rotor machine R 40(440 spinning boxes),BT 924(360 spinning boxes).924(360 spinning boxes).

•• Rotona rotor core yarn.Rotona rotor core yarn.



OUR PRESENTATION TOPICOUR PRESENTATION TOPIC

COMPACT SPINNINGCOMPACT SPINNING



WHAT IS COMPACT SPINNING?WHAT IS COMPACT SPINNING?

��Compact or condensed spinning is a new concept Compact or condensed spinning is a new concept of yarn forming.of yarn forming.

�� Fundamental modification of the conventional Fundamental modification of the conventional

ringring--spinning system that aims at producing a spinning system that aims at producing a

better surface integrity of spun yarns and better surface integrity of spun yarns and

maximizing strengthmaximizing strength..

�� The eliminated spinning triangle is a byThe eliminated spinning triangle is a by--product of product of

this concept. This close and parallel arrangement this concept. This close and parallel arrangement

of fibers immediately before twist is imparted is of fibers immediately before twist is imparted is responsible for the characteristic advantages of responsible for the characteristic advantages of

compact yarn.compact yarn.



HISTORYHISTORY

��For several decades, development efforts For several decades, development efforts in ring spinning were focused on in ring spinning were focused on improving the existing technology and improving the existing technology and incorporating automation and processincorporating automation and process--linking capabilities.linking capabilities.

�� The first compact spinning machine was The first compact spinning machine was put into trial production in 1995 in some put into trial production in 1995 in some spinning mills in Switzerlandspinning mills in Switzerland. .



IMPORTANCEIMPORTANCE

��Compact spinning offered the potential to create a Compact spinning offered the potential to create a nearnear--perfect yarn structure by applying air perfect yarn structure by applying air

suction or magnetic system to condense the fiber suction or magnetic system to condense the fiber

stream in the main drafting zone, thereby stream in the main drafting zone, thereby virtually eliminating the spinning triangle.virtually eliminating the spinning triangle.

�� Compact spinning has been shown to Compact spinning has been shown to

significantly improve yarn tensile properties and significantly improve yarn tensile properties and reduce its hairiness. Both characteristics are reduce its hairiness. Both characteristics are

crucial for yarn performance in downstream crucial for yarn performance in downstream

manufacturing operationsmanufacturing operations



CONVENTIONAL V/S COMPACTCONVENTIONAL V/S COMPACT

•• The difference (DW) The difference (DW)

between WF and WT between WF and WT

increases as the speed of increases as the speed of

the front roller increase; the front roller increase;

this is due to less control this is due to less control

on fiber draft and on fiber draft and

spinning. spinning.



Working principleWorking principle

11--Draft arrangement Draft arrangement

1a) Condensing element1a) Condensing element

1b) Perforated apron1b) Perforated apron

VZ) Condensing zoneVZ) Condensing zone

2) Yarn Balloon with new 2) Yarn Balloon with new structure structure

3) Traveler3) Traveler

4) Ring4) Ring

5) Spindle5) Spindle

6) Ring carriage 6) Ring carriage

7) Cop7) Cop

8) Balloon limiter8) Balloon limiter

9) Yarn guide 9) Yarn guide

10) Roving10) Roving

E) Triangle of compact E) Triangle of compact spinningspinning



Properties of compact spinning:Properties of compact spinning:

•• Better yarn structure.Better yarn structure.

•• High strength and low hairiness. High strength and low hairiness.

•• Benefits and cost savings in the subsequent processing stages. Benefits and cost savings in the subsequent processing stages.

•• Compact fabrics distinguish themselves by an increased lustre anCompact fabrics distinguish themselves by an increased lustre and a d a clearly enhanced colour contrast. clearly enhanced colour contrast.

•• The wear comfort and handle of the final products are significanThe wear comfort and handle of the final products are significantly tly improved.improved.



Factors Affecting Compact SpinningFactors Affecting Compact Spinning

•• Condensing zone is heart of Condensing zone is heart of compact spinning.compact spinning.

•• Fiber length, fineness and Fiber length, fineness and stiffness are factors affecting stiffness are factors affecting the fiber transport by airflow the fiber transport by airflow this necessitates apron moving this necessitates apron moving to be less than delivery rollers to be less than delivery rollers (condensing).(condensing).

•• Changing the perforation Changing the perforation width increases air velocity.width increases air velocity.

•• Smooth guides give better twist Smooth guides give better twist propagation.propagation.

•• Hairs of less than 2mm give Hairs of less than 2mm give better cover factor, Hairs> 3 better cover factor, Hairs> 3 mm are Problematic for mm are Problematic for processing. processing.



Methods of compacting fiber strandMethods of compacting fiber strand

These methods are:These methods are:

1.1. Aerodynamically compacting system: Aerodynamically compacting system:

•• a) Suction by drum a) Suction by drum

•• b) Suction through perforated apron. b) Suction through perforated apron.

22--Mechanical compact system. Mechanical compact system.

33--Magnetic compacting system.Magnetic compacting system.



AERODYNAMIC METHODSAERODYNAMIC METHODS

1.1.Suction by drumSuction by drum

•• Rieter (Com4Rieter (Com4) )

22..Suction by apronSuction by apron

•• Suessen (Elite)Suessen (Elite)

•• ZinserZinser

•• ToyotaToyota

•• Olfil system by MarzoliOlfil system by Marzoli



Com 4 (K44) Operating PrincipleCom 4 (K44) Operating Principle

•• Vacuum generated in the Vacuum generated in the

perforated drum perforated drum

•• The fibers are fully The fibers are fully

controlled all the way controlled all the way

from the nipping line after from the nipping line after

the drafting zone to the the drafting zone to the

spinning triangle.spinning triangle.

•• Nip roller prevents the Nip roller prevents the

twist from being twist from being

propagated into the propagated into the

condensing zone.condensing zone.



•• Perforated drum Perforated drum

•• Suction insert. Suction insert.

•• Air guide element Air guide element



�� SUESSEN is a pioneer in the SUESSEN is a pioneer in the compact spinning technologycompact spinning technology

�� SUESSEN has sold more than SUESSEN has sold more than 2.3 million EliTe Compact 2.3 million EliTe Compact Spindles Over 10% of these Spindles Over 10% of these compact spindles have been compact spindles have been successfully equipped with successfully equipped with EliTwist Technology.EliTwist Technology.



Special features:Special features:

•• Optimum and sustained yarn qualityOptimum and sustained yarn quality

•• High consistency of all yarn parametersHigh consistency of all yarn parameters

•• Minimal variation between spinning positionsMinimal variation between spinning positions

•• No restrictions in regard to raw materialNo restrictions in regard to raw material

•• Easy handling Easy handling

•• Universal applicationUniversal application

•• Can be installed on almost all machine typesCan be installed on almost all machine types




•• The slot creates an air current The slot creates an air current through the lattice apron inside the through the lattice apron inside the profile tube. profile tube.

•• As the slot, being under negative As the slot, being under negative pressure, reaches right up to the pressure, reaches right up to the delivery nipping line, the fiber delivery nipping line, the fiber assembly remains totally assembly remains totally compacted. This results in a compacted. This results in a substantial disappearance of the substantial disappearance of the spinning triangle.spinning triangle.

•• To fulfill these criteria suction fans To fulfill these criteria suction fans are installed driven by a motor. are installed driven by a motor. Each suction pump covers 24/30 Each suction pump covers 24/30 spinning positions. This provides spinning positions. This provides short airflow distances with short airflow distances with identical negative pressureidentical negative pressure on all on all spinning positions.spinning positions.



•• Suessen compact system Suessen compact system

consists of a tubular profile consists of a tubular profile

subjected to a negative pressure subjected to a negative pressure

and closely embraced a lattice and closely embraced a lattice

apron.apron.

•• The delivery top roller fitted The delivery top roller fitted

with rubber cots presses the with rubber cots presses the

lattice apron against the hollow lattice apron against the hollow

profile and drives the apron, at profile and drives the apron, at

the same time forming the the same time forming the

delivery nipping line.delivery nipping line.

•• The tubular profile has a small The tubular profile has a small

slot in the direction of the fiber slot in the direction of the fiber

flow.flow.



Eli TopThe EliTop has a special design. The EliTop has a special design.

1. bottom part of housing1. bottom part of housing

2 .top part of housing2 .top part of housing

3 . screwed joint of both3 . screwed joint of both

housing partshousing parts

4. front top roller =4. front top roller =

front of drafting systemfront of drafting system

5. delivery top roller = EliTe Roller5. delivery top roller = EliTe Roller

6. axle with intermediate6. axle with intermediate

gears to clip ongears to clip on



• EliTube / Lattice

ApronsThe EliTube, assigned to one The EliTube, assigned to one

group of spindles, serves to supply group of spindles, serves to supply

the vacuum for the relevant the vacuum for the relevant

suction slotssuction slots

•• This insert can be replaced easily This insert can be replaced easily

if it is worn.if it is worn.



1.1.For coarse countFor coarse count

2.2.For fine countFor fine count

1

2



Demerits Demerits

•• The EliVAC system The EliVAC system

(suction system) increases (suction system) increases

the heat emission of a ring the heat emission of a ring

spinning frame. spinning frame.



DemeritsDemerits•• Defective lattice apron Defective lattice apron

(operating life exhausted, (operating life exhausted, damaged by lapping, wrong damaged by lapping, wrong positioning in the recesses of the positioning in the recesses of the guide rod).guide rod).

•• Ultrasonic cleaning devices with Ultrasonic cleaning devices with a content of about 20 liters to a content of about 20 liters to wash approx. 1000 aprons at a wash approx. 1000 aprons at a

time. Such devices cost about time. Such devices cost about EURO 1,300.EURO 1,300.

•• Due to fiber accumulation Due to fiber accumulation between lattice apron and between lattice apron and EliTube, lattice apron does not EliTube, lattice apron does not run smoothly.run smoothly.



Fundamental Rules for Successful Elite Compact SpinningFundamental Rules for Successful Elite Compact Spinning

•• Rule1:Rule1: EliTe Spinning Machines must be separated from EliTe Spinning Machines must be separated from conventional ring spinning machines.conventional ring spinning machines.

•• Rule 2:Rule 2: Maximum room temperature 33 degree Celsius.Maximum room temperature 33 degree Celsius.

•• Rule 3Rule 3: : The front top roller is precisely 3.5 mm offset towards the The front top roller is precisely 3.5 mm offset towards the operator in relation to the front bottom roller of the drafting operator in relation to the front bottom roller of the drafting system.system.

•• Rule 4Rule 4:: The traverse mechanism for the roving should be adjusted The traverse mechanism for the roving should be adjusted in such a way that the traverse motion at the front of the draftin such a way that the traverse motion at the front of the drafting ing system does not exceed 4 mm, and that the l.h.limit position of system does not exceed 4 mm, and that the l.h.limit position of the the roving is level with the left hand edge of the top of the slot.roving is level with the left hand edge of the top of the slot.

•• Rule 5Rule 5:: Lattice aprons and Eli Tubes must be cleaned from time to Lattice aprons and Eli Tubes must be cleaned from time to time.time.



Fundamental Rules for Successful Elite Fundamental Rules for Successful Elite

Compact SpinningCompact Spinning

•• Rule 6:Rule 6: Eli Tops must be replaced by new top rollers after Eli Tops must be replaced by new top rollers after

the recommended time.the recommended time.

•• Rule 7Rule 7:: Make sure that the difference in diameter of the Make sure that the difference in diameter of the

front top roller and the delivery roller corresponds precisely tfront top roller and the delivery roller corresponds precisely to o

the desired tension draftthe desired tension draft

•• Rule 8Rule 8:: Clean the connecting hoses with regular frequency.Clean the connecting hoses with regular frequency.

•• Rule 9Rule 9: : The fans should be removed from the machine and The fans should be removed from the machine and

cleaned once a year.cleaned once a year.

•• Rule 10Rule 10: : Yarn quality is more important than quantityYarn quality is more important than quantity



4.084.17TM

31.8832.6TPI

0.630.68Sh

2.883Hairiness

163.45164.79I P I

96.798.77Neps +200 %

48.9348.06Thick +50 %

17.8217.96Thin -50 %

10.910.99U %

22.4621.94RKM (UTJ)

31753154CLSP

2.353.94Strength C.V %

52.151.6Strength

1.191.21Count C.V %

60.9561.13Actual count

Lot-YLot-YCOTTON

K-44RX-240 (Seussen)Yarn

60/1CMWVG

COMPACTK-44

Lot-Y

60/1 CM WVG

COMPACT

Lot-Y

COUNT

Comparison Comparison

b/w com4 and b/w com4 and

SeussenSeussen



Toyota compact systemToyota compact system

•• The RX240NEWThe RX240NEW--EST high quality EST high quality

compact yarns. compact yarns.

•• The "Simple & Rigid" structural The "Simple & Rigid" structural

design.design.

•• In Toyota when the fibers leave the In Toyota when the fibers leave the

drafting zone they are compacted by drafting zone they are compacted by

condense apron.condense apron.

Synchronous motor Synchronous motor

controlled by Invertercontrolled by Inverter

Suction motorSuction motor

44--spindle unit + spindle unit +

Perforated apronPerforated apron

Condense unitCondense unit




•• Condense system is driven by front bottom Condense system is driven by front bottom

roller with Toyota’s specially designed driving roller with Toyota’s specially designed driving

system.system.

•• Individual’s motor combined with suction units Individual’s motor combined with suction units

for spinning position have been arranged for spinning position have been arranged

accordingly. This provides short airflow accordingly. This provides short airflow

distances with identical negative pressure.distances with identical negative pressure.

•• By applying air suction to condense the fibers By applying air suction to condense the fibers

stream, thereby virtually eliminating the stream, thereby virtually eliminating the

spinning triangle, helps improve yarn spinning triangle, helps improve yarn

characteristics.characteristics.



StructureStructure

1.1. Suction ductSuction duct (One section per 48 spindles)(One section per 48 spindles)

Locating the suction duct on the upper Locating the suction duct on the upper part of the roller stands simplifies duct part of the roller stands simplifies duct design for easy cleaning and shortens design for easy cleaning and shortens piping length for optimum suction piping length for optimum suction efficiency.efficiency.

2.2. Condense unit:Condense unit:Each 4 spindle unit is easily removed and Each 4 spindle unit is easily removed and disassembled without using special tools. disassembled without using special tools.

33. . Delivery roller:Delivery roller:

Delivery roller is driven by maintenanceDelivery roller is driven by maintenance--free carrier gear and grooved front roller free carrier gear and grooved front roller resulting in a simple and dependable resulting in a simple and dependable structure.structure.



Features of high quality:Features of high quality:

•• Smooth collection of fleece fibers by suction slit and Smooth collection of fleece fibers by suction slit and

perforated apron. perforated apron.

•• Precise slipPrecise slip--free rotation of perforated apron due to positive free rotation of perforated apron due to positive

drive by bottom delivery roller. drive by bottom delivery roller.

•• Adjustable suction pressure controlled by inverter.Adjustable suction pressure controlled by inverter.

Features of easy maintenance:Features of easy maintenance:

•• Easy access to detachable condense unit. Easy access to detachable condense unit.

•• Less critical top roller maintenance due to bottom delivery Less critical top roller maintenance due to bottom delivery

roller drive of perforated apron. roller drive of perforated apron.



Features of flexibility:Features of flexibility:

•• Easy conversion between Easy conversion between compact and conventional ring compact and conventional ring spinning. spinning.

•• Available as retrofit for the Available as retrofit for the RX240NEWRX240NEW..

Stable production of high Stable production of high qualityquality yarn:yarn:

•• Quality yarn with low hairiness Quality yarn with low hairiness and high evenness is produced and high evenness is produced by eliminating the spinning by eliminating the spinning

triangle at the delivery section triangle at the delivery section of the front roller.of the front roller.



0.770.8Sh

3.333.33Hairiness

253.1271.3I P I

147.3167.5Neps +200 %

75.580.3Thick +50 %

30.323.5Thin -50 %

2.62.3CVb

11.2511.53U %

11.310.4C.V.%

4.234.57Elg.

10.59.6C.V.%

22.4922.27RKM (UTJ)

30793098CLSP

3.224.22

Strength C.V

%

50.951Strength

0.781.33Count C.V %

60.4960.75Actual count

Lot-YLot-YCOTTON

K-44RX-240Yarn

PackedPackedDepart.

60/1 CM WVG COMPACT

K-44 Lot-Y

60/1 CM WVG Toyota

COMPACT Lot-YCOUNT

COMPARISION 60/1 CM

Difference Difference

b/w com4 b/w com4

and Toyotaand Toyota

Zinser: CompACTZinser: CompACT

•• With this compact spinning With this compact spinning

technology, which is based on a technology, which is based on a

perforated apron, all raw materials perforated apron, all raw materials

can be processed to all major yarn can be processed to all major yarn

counts.counts.

•• This, however, not only applies to the This, however, not only applies to the

field of combed cotton ring yarn, but field of combed cotton ring yarn, but

also to carded ring yarn, blends of also to carded ring yarn, blends of

cotton with manmade fibers (carded cotton with manmade fibers (carded

and combed) and pure manmade and combed) and pure manmade

fibers.fibers.



Working PrincipleWorking Principle

•• The system of Zinser, is characterized by The system of Zinser, is characterized by

extending the draft system by a double extending the draft system by a double

roller. roller.

•• A perforated apron is moved over the A perforated apron is moved over the

upper roller, where the suction profile upper roller, where the suction profile

element is found. Between the delivery element is found. Between the delivery

roller and the perforated apron, the roller and the perforated apron, the

condensing zone occurs. condensing zone occurs.

•• The roller pair is working in a classical The roller pair is working in a classical

way as in ordinary draft system.way as in ordinary draft system.



Olfil system by MarzoliOlfil system by Marzoli

•• Resembles the Suessen system in that it also uses a bottom Resembles the Suessen system in that it also uses a bottom perforated apron and an extra top front roller. perforated apron and an extra top front roller.

•• The Olfil system is still under development and not yet The Olfil system is still under development and not yet commercially available. commercially available.

•• The major difference between these two systems is that, The major difference between these two systems is that, whereas Suessen utilizes a bottom perforated apron that whereas Suessen utilizes a bottom perforated apron that extends back into the nip of the normal front roller, the Marzolextends back into the nip of the normal front roller, the Marzoli i system uses a bottom roller around which the perforated apron system uses a bottom roller around which the perforated apron passes. passes.

•• This implies that the Suessen system has greater control of the This implies that the Suessen system has greater control of the issuing strand. Indeed.issuing strand. Indeed.

•• An additional difference between Suessen and Marzoli is that, An additional difference between Suessen and Marzoli is that, while they both use slightly different roller sizes to promote twhile they both use slightly different roller sizes to promote the he tension in the condensing zone, Marzoli use a timingtension in the condensing zone, Marzoli use a timing--belt drive, belt drive, whereas Suessen uses a gear drive.whereas Suessen uses a gear drive.



•• The bottom section of the The bottom section of the condensing system has one condensing system has one

stainless steel pipe for every 8 stainless steel pipe for every 8

spindles with a perforated apron spindles with a perforated apron

at each spindle.at each spindle.

•• The top section of the condensing The top section of the condensing

system is composed of two system is composed of two pressure rollers driven by the pressure rollers driven by the

toothed belt. toothed belt.

•• For each 48 spindles section, For each 48 spindles section,

there is one motorized inverter there is one motorized inverter

driven fan that provides suction driven fan that provides suction for the condensing system.for the condensing system.



RoCos ROTORCRAFT

COMPACT SPINNING– No air suction

– No air pipes

– No perforated drums or aprons

– No ventilators

– No extra power

– No erectors for installation

– but

– Magnetic Compacting is

simple – safe – solid



•• Any ring spinning Any ring spinning

machine canmachine can be be

converted into RoCos converted into RoCos

system.system.

•• Bottom roller 1 Bottom roller 1

supports the front roller supports the front roller

2 and delivery roller 3.2 and delivery roller 3.

PrinciplePrinciple



•• Condensing zone extends from Condensing zone extends from

clamping line A to clamping line clamping line A to clamping line B.B.

•• Very precise magnetic Very precise magnetic compactor 4 is pressed by compactor 4 is pressed by permanent magnets without permanent magnets without

clearance against cylinderclearance against cylinder 11..

•• Together with the bottom roller Together with the bottom roller

it forms an overall enclosed it forms an overall enclosed compression chamber whose compression chamber whose bottom contour, the generated bottom contour, the generated surface of cylinder 1, moves surface of cylinder 1, moves

synchronously with the strand synchronously with the strand of fibers and transports this of fibers and transports this safely from clamping line A safely from clamping line A through the compactor to through the compactor to clamping line B clamping line B

1 bottom 1 bottom

rollerroller

2 front roller2 front roller

3 delivery 3 delivery

rollerroller

4 magnetic 4 magnetic

compactorcompactor

A/B clamping A/B clamping

lineline

2

1

3

3

A

B

4

A

B



Types of the RoCos compact spinning Types of the RoCos compact spinning

systemsystem

•• RoCoS1 is suitable for RoCoS1 is suitable for cotton, pure and as blends cotton, pure and as blends with synthetic fibers as with synthetic fibers as well as for pure synthetics well as for pure synthetics with a maximum staple with a maximum staple length of 60 mm (21/2 ").length of 60 mm (21/2 ").

•• RoCos 2RoCos 2 is suitable for is suitable for wool, pure and as blends wool, pure and as blends with synthetic fibers as with synthetic fibers as well as for pure synthetics, well as for pure synthetics, having a minimum staple having a minimum staple length of 50 mm (2").length of 50 mm (2").



Comparative benefits towards other compact Comparative benefits towards other compact

systemssystems

•• Low operating cost.Low operating cost.

•• No additional power required. Hence contributes No additional power required. Hence contributes saving of Rs 1.35 to 5.00 per every km of yarn saving of Rs 1.35 to 5.00 per every km of yarn produced. produced.

•• Higher productivity by optimizing twists insertion Higher productivity by optimizing twists insertion and low ends down. and low ends down.

•• Less Pneumafil waste by 0.3 to 0.6 per cent. Less Pneumafil waste by 0.3 to 0.6 per cent.

•• Ergonomic design for efficient and easy handling Ergonomic design for efficient and easy handling during maintenance. during maintenance.

•• Benefit from total recurring cost and investment Benefit from total recurring cost and investment is multiis multi--fold. fold.

•• Further benefit like elimination of waxing during Further benefit like elimination of waxing during winding and singeing processwinding and singeing process



ADVANTAGES OF COMPACT YARNADVANTAGES OF COMPACT YARN

•• Higher fiber utilization.Higher fiber utilization.

•• Higher tenacity with same twist Higher tenacity with same twist factor, or same tenacity with factor, or same tenacity with reduced twist factor for higher reduced twist factor for higher production.production.

•• Lowest hairiness (highest Lowest hairiness (highest reduction in hairs longer than 3 reduction in hairs longer than 3 mm).mm).

•• Fewer weak pointsFewer weak points

•• Better imperfections (IPI) valuesBetter imperfections (IPI) values

•• Higher abrasion resistanceHigher abrasion resistance

•• up to 20%twist reduction in up to 20%twist reduction in spinning compact yarns, the spinning compact yarns, the twisting turns can be reduced for twisting turns can be reduced for certain types of yarn. As a result, certain types of yarn. As a result, production of twisting frame is production of twisting frame is increased and twisting costs are increased and twisting costs are reduced.reduced.



ADVANTAGES OF COMPACT YARNADVANTAGES OF COMPACT YARN

•• Due to better embedding of fibers Due to better embedding of fibers

(including short ones) in(including short ones) in compactcompact Yarn, Yarn,

approx.6% reduction of combing noils approx.6% reduction of combing noils

are possible.are possible.

•• Cheaper carded qualities instead of Cheaper carded qualities instead of

combed qualities can be spun with the combed qualities can be spun with the

CompactCompact Spinning systemSpinning system..



ADVANTAGES IN WEAVINGADVANTAGES IN WEAVING

•• Higher tenacity of compact Yarns, the endsHigher tenacity of compact Yarns, the ends--down rate in beaming down rate in beaming

is reduced by up to 30%. Higher beamer efficiency, higher is reduced by up to 30%. Higher beamer efficiency, higher production and fewer personnel for repair of endsproduction and fewer personnel for repair of ends--down in down in beaming are the consequence. beaming are the consequence.

•• Owing to the better work capacity ofOwing to the better work capacity of compact Yarns, ends down compact Yarns, ends down can decreasedcan decreased by up to 50% in the warp and by up to 30%in the by up to 50% in the warp and by up to 30%in the weft. Efficiency is consequently increased by 2 to 3%, productioweft. Efficiency is consequently increased by 2 to 3%, production n is increased and weaving costs are reduced. is increased and weaving costs are reduced.

•• In practice, the average endsIn practice, the average ends--down rate is reduced by 33% per down rate is reduced by 33% per 100,000 weft insertions of100,000 weft insertions of compact yarns on rapier compact yarns on rapier

weavingweaving machines and by 45% on airmachines and by 45% on air--jet weaving jet weaving machines.machines. Instead of a weft insertion of 500 Instead of a weft insertion of 500 ––600 m/min with 600 m/min with

conventional ring yarn, 700conventional ring yarn, 700--800 m/min is possible800 m/min is possible



ADVANTAGES in PROCESSINGADVANTAGES in PROCESSING

•• CompactCompact Warp yarns help to save up to 50%of sizing agent, while Warp yarns help to save up to 50%of sizing agent, while

the running behavior of weaving machines is the same or even the running behavior of weaving machines is the same or even

better. Cost can be savedbetter. Cost can be saved in sizing and desizingin sizing and desizing processes. processes.

•• Singeing can sometimes be dispensed with, or it can be carried oSingeing can sometimes be dispensed with, or it can be carried out at ut at

a higher cloth advance speed. Fibers up to 7% can be saved becaua higher cloth advance speed. Fibers up to 7% can be saved because se

singing can be avoided.singing can be avoided.

•• Dyeing and Printing Improved structure of compactDyeing and Printing Improved structure of compact Yarns and Yarns and

their reduced twist favors the absorption of color pigments and their reduced twist favors the absorption of color pigments and

chemical finishing agents. Saving of dyestuff is possible.chemical finishing agents. Saving of dyestuff is possible.



ADVANTAGES In knitting YarnADVANTAGES In knitting Yarn

•• Reduce yarn twist ofReduce yarn twist of knitting yarns, by up to 20%, The endsknitting yarns, by up to 20%, The ends--down rate in down rate in

spinning these Yarns is reduced by 30 to 60%, which improves macspinning these Yarns is reduced by 30 to 60%, which improves machine hine

efficiency.efficiency.

•• Increased yarn strength and reduced formation of fluff permit toIncreased yarn strength and reduced formation of fluff permit to achieve achieve

higher machine efficiency and therefore production on knitting mhigher machine efficiency and therefore production on knitting machines at achines at

a reduced endsa reduced ends--down rate, less interruptions and less fabric faults. down rate, less interruptions and less fabric faults.

•• Production costs therefore decrease.Production costs therefore decrease.

•• In knitting fiber abrasion reduced by 40% due to low hairiness. In knitting fiber abrasion reduced by 40% due to low hairiness. Fewer Fewer

defects/ yarn breaks anddefects/ yarn breaks and better quality. Less contamination on all machines better quality. Less contamination on all machines

by foreign fibers.by foreign fibers.

•• Less wear of needles, guide elements and sinkers due to less dusLess wear of needles, guide elements and sinkers due to less dust in the t in the

compact Yarn. Low hairiness has positive impact on loop structurcompact Yarn. Low hairiness has positive impact on loop structure.e.

•• For warp knitting can be used, because ofFor warp knitting can be used, because of their higher work capacity.their higher work capacity.



compact spining

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