Ring Spinning Vs All technologies part 2

8/8/2019 Ring Spinning Vs All technologies part 2

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Spinning Presentation

Syed Sohaib Hussnain Kazme (SoNu ShAh)M.Asad Lakhani

SoNuu Shah



Presented to Sir Hafeez ur Rehman Sheikh

SoNuu Shah



When talking about productive potential it is specifically linked to

the capacity of machine to produce a product« for ring spinning

productive potential is the calibre of related technology to produce

yarn.

e.g

o Speedo Power

o Efficiency

o Quality

o Productivity

SoNuu Shah



To study the comparative study of conventional

yarn manufacturing technology & new

technologies.

Besides of comparatively low productivity as

compared to other techniques, Why Still Ring

Spinning«???

Quality of yarn delivered from all yarn

manufacturing techniques

SoNuu Shah



Figure 1 represents the current offerings in spinning

machines and their comparative spinning speeds.

SoNuu Shah



After the Industrial revolution (1764-1784) Mule Spinning

gained attention throughout the world. Continuous efforts were

being made to refine this system of spinning. Later, Ring

Spinning was introduced after some modifications in MuleSpinning System. The basic technology of the Ring Spinning

remained unchanged. Ring Spinning Systems have been

refined during the last 30 years, the ultimate objectives of

spinning dialectologists are focused on higher production

speed, combined with adequate quality.

SoNuu Shah



The most widely used spinning technique in the world

due to its high speed and good quality. The Quality of

yarn produced by this technique is considered to be

the best quality yarn at a high speed.

SoNuu Shah



| Production of high strength yarns.

| Spinning of fine count yarns.

| Proper for special yarns.

| It is universally applicable (any material can be spun).

| The know how for operation of machine is well established

accessible to everyone.

| It is flexible as regards quantities (blend and lot size).

| Since the speeds in drawing section are best controlled, yarn

evenness is excellent. But if short fibers are too much, yarn

unevenness occurs.

| Fine yarns can be produced as compared to open-end system

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| Process stages are more numerous. Roving stage exists as an

extra process compared to the other systems.

| Yarn breakages are more numerous as a result of ring

traveler friction and yarn air friction. Interruptions, brokenends and piecing up problems exist because of the yarn

breakages.

| The high speed of the traveler damages the fibers.

| The capacity of the cops is limited.

| Energy cost is very high.

| Low production rate.

SoNuu Shah



| Open-end spinning is a technology for

creating yarn without using a spindle. It

was invented and developed in

Czechoslovakia in Cotton Researching

Institute in year 1963.

| Twist is provided by the turning of the

rotor.



| Spool does not need to be rotated to insert twist

| Much larger spools can be wound

| 3-5 times faster than ring spinning

| Uniform but flexible yarn with better dye ability

| Carded yarns (coarser)

| Yarns for heavier fabrics such as denims, towels and

poplins

| 20% more twisted but 15-20% weaker as the yarn is

coarser

| Not suitable for man-made staple fibre spinning except

rayon as the fiber finish clogs the rotor

SoNuu Shah



Systems that use additional drafting components to

create yarn.

yarns that are less hairy and stronger

compact



| 15-20% reduction in hairiness of yarn, the

| reduction being more pronounced in long length hairs

|10-15% improvement in yarn tenacity

| Twist in yarn can be reduced by 10% while maintaining

same yarn strength

| Better evenness of diameter and hairiness.

| Better abrasion resistance of yarn leading to fewer ends

SoNuu Shah



| breaks in weaving. Loom shed droppings and linting in

knitting are reduced.

| Singeing can be omitted.

| Lower twist can be employed in doubling.

| Improved appearance and lustre of fabric with a softer.

| Reduced pilling and better dye uptake.

SoNuu Shah



SoNuu Shah



Vortex Spinning

The vortex spinning technology is one of the most promising

new inventions in the spinning market. This relatively new

spinning system was also developed by the Japanese firm

Murata (Muratec). Murata¶s No. 851 Vortex Spinner made its

first appearance at OTEMAS¶97 [34]. Vortex spinning is a

false twist process, and the twist insertion in this system is

achieved by means of air jets. The main attraction of vortex

spinning is that it is claimed to be capable of spinning 100%carded cotton fibers at very high speeds (400m/min),

SoNuu Shah



Advantages

Other claimed advantages of vortex spinning are a low

maintenance cost due to fewer moving parts,

elimination of the roving frame stage, and improved

fully automatic piecing system. In addition to these,yarns produced by this method have low hairiness

compared to normal ring yarns. This is claimed to be

due to being ³air-singed´ and ³air-combed,´ which in

turn results in reduced fabric pilling; and fabrics made

from vortex yarns have outstanding abrasion

resistance, moisture absorption, color-fastness and fast

drying characteristics

SoNuu Shah



SoNuu Shah



|A spinning system in which yarn is made by

wrapping fibres around a core stream of fibres using

compressed air.

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|Friction Spinning is a textile technology that allows

very heavy count yarns and technical core wrapped

yarns to be manufactured. These are most commonly

used in Mop yarns, flame retardants and high techfancy yarns such as Raydon and Kevlar.

SoNuu Shah



| The forming yarn rotates at high speed compare to other rotating

elements. It can spin yarn at very high twist insertion rates

(ie.3,00,000 twist/min). The yarn tension is practically

independent of speed and hence very high production rates (up

to 300 m/min) can be attainable. The yarns are bulkier than rotor

yarns.

| The DREF II yarns are used in many applications. Blankets for

the home application range, hotels and military uses etc. DREF

fancy yarns used for the interior decoration, wall coverings,draperies and filler yarn

SoNuu Shah



In the comparison of all the spinning techniques, wewill also need to include the quality test for each typeof the spinning technique yarn to check which one is

providing best quality yarn«for this purpose we aregoing to need following machines:

| Uster tester

| HVI 1000

| Lea Strength testing machine

| Quantum test

|Misc.

SoNuu Shah

Ring Spinning Vs All technologies part 2

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