Table Tag: spinning

Indian Yarn Prices Update 14-November-2022

Below given Indian yarn prices are based on CIF leading Asian Ports with L/C at Sight.

100% Cotton Carded Knitting
Ne 20/1@USD3.20/kg
Ne 30/1@USD3.30/kg
Ne 32/1@USD3.45/kg
Ne 40/1@USD3.70/kg

100% Cotton Combed Knitting
Ne 20/1@USD3.35/kg
Ne 24/1@USD3.42/kg
Ne 26/1@USD3.45/kg
Ne 30/1@USD3.50/kg
Ne 32/1@USD3.55/kg
Ne 34/1@USD3.66/kg
Ne 40/1@USD3.85/kg

100% Cotton Combed Compact Knitting
Ne 20/1@USD3.38/kg
Ne 24/1@USD3.45/kg
Ne 26/1@USD3.48/kg
Ne 30/1@USD3.53/kg
Ne 32/1@USD3.58/kg
Ne 34/1@USD3.70/kg
Ne 40/1@USD3.90/kg

100% Cotton yarn Knitting TFO
Ne 20/2@USD3.37/kg
Ne 32/2@USD3.70/kg

Commodities Index Closing 03-November-2022

*NYC CLOSED*
*Dec 83.00+ 4.00*
*Mar 82.17+ 3.53*
*May 82.00+ 3.15*
*Jul 81.16+ 2.44*
*Oct 79.16+ 2.19*
*Dec 77.26+ 1.38*
*VOL=75109*

*SOYA OILCLOSED*
Dec 75.29 -0.32
Jan 73.18s -0.10
Mar 71.22+ 0.09

*SOYASEED CLOSED*
Jan 1437-00 -17.00
Mar 1444-00 -21.00

*SOYA-MEAL CLOSED*
Dec 414.30 -10.2
Jan 407.50 -9.50

*CANOLA-CLOSED*
Nov 909.80 -9.40
Jan 894.50 -0.30

*CRUDE OIL*
Dec 88.21 -1.79

*CRUDE OIL BRENT*
Jan 94.71 -1.45

*GOLD*
Dec 1631.00 -19.00.

*SILVER*
Dec 19.455 -0.139

*PLATINUM*
Jan 922.10 -28.80

*$-INDEX*
Dec 112.905 +1.679

Cotton Bale Weight in Different countries

The most important and noteworthy parameters of cotton bale are as follows
Cotton bale Dimension
Cotton Bale Density
Cotton Bale Weight

The following are the standard bale weights in different countries. Also please note that mostly people follow the USDA WASDE report for cotton quantity counting globally and these calculations are always based on 480 lbs basis. As bale weight in different origins vary therefore dimensions and density of bale also vary.

  • Cotton Bale weight USA 220 Kgs
  • Cotton Bale Weight Australia 227 Kgs
  • Cotton Bale Weight Brazil 220 Kgs
  • Cotton Bale Weight India 170 Kgs
  • Cotton Bale Weight Pakistan 160 Kgs
  • Cotton Bale Weight West Africa 180 Kgs
  • Cotton Bale Weight Uganda 180 Kgs
  • Cotton Bale Weight Tanzania 180 Kgs
  • Cotton Bale Weight Sudan 190 Kgs
  • Cotton Bale Weight Nigeria 185 Kgs
  • Cotton Bale Weight South Africa 200 Kgs
  • Cotton Bale Weight Mexico 230 Kgs
  • Cotton Bale Weight Egypt 240~270 Kgs

Author: Afzaal Khadim Khan
Owner: Textiles Bar
Lahore Pakistan

How a Spinning Mill Works (Complete spinning mill process)

This is a process of converting raw cotton into a more usable form.

In the first stage, raw cotton is mixed with water in order to remove dirt and impurities. The mixture is then sent through a series of machines called ‘blow room’ and ‘carding’. In the blow room, air is blown to make the cotton fluffy. This process makes it easier for the carding machine to separate out fibers of different lengths. The carded fiber is then compressed into slivers which are spun together to form yarns.
Spinning is a process that converts raw materials, such as cotton, wool, or flax, into a continuous strand of yarn. The process is carried out in four steps: carding, drawing out, spinning and twisting.

Below are the details of some major sections or departments used in a spinning mill to convert the fiber into yarn.

CARDING
In the carding process the raw material is first broken down into small pieces and then it is cleaned from the impurities like trash, dead fiber, dust and dirt. After this cleaning process the cleaned cotton is converted into sliver form. This sliver is stored and carried forward to the next section in canes.

DRAWING
The carding machines separate the raw material into a web of long fibers called sliver. The process starts by drawing slivers from the carding machine. The slivers are then taken to the drawing machines where this sliver is reprocessed to make it softer, straight and variation is decreased by using several canes of sliver into one row.

COMBERS
It is a process in which the fibers are passed through a series of rotating brushes. The brushes pull out the shorter fibers and leave behind the longer ones, which are then wound onto bobbins in the forms of laps.
The most common type of machine used for combing is called a comber.

SIMPLEX
The simplex frames pull the slivers out to make them thinner and longer, while being twisted together to form roving.

RING
The roving is then taken to the spinning frames where it is stretched out and twisted together even more tightly to produce yarn. In the spinning mill process, yarn is spun into thread by a spinning machine. The spinning machine is called a ring frame and it includes four parts: the spindle, the flyer, the bobbin and the doffer.
The spindle is attached to a rotating drive shaft that is powered by an electric motor. The flyer is a large rotating cylinder with many slots in it that catches thread as it comes off of the spindle. The bobbin holds all of the thread coming off of the flyer and stores it until it can be wound onto a small container called bobbin

AUTO CONE / WINDING
Then the yarn bobbins are converted into big yarn cones to their final shape.

PACKING DEPT
Then these cones are brought to the packing department. Packing is being done in both mechanical and manual form. most common packing are carton packing, PP bag packing and pallets.

Author: Afzaal Khadim Khan
Owner: Textiles Bar
Lahore Pakistan

Yarn Test Results Tensorapid and Tensojet

Tensorapid and tensojet yarn testing parameters

Introduction

The tensorapid and tensojet are two of the most used instruments in textile testing labs today. They provide an excellent opportunity to measure breaking force, elongation, rkm and many other key indicators of quality. Here are some key points regarding these measurements: Breaking Force is a measure of the strength of a strand at its point of failure. Elongation is a measure of how much tension was applied to a strand before it breaks. RKM is calculated from the difference between the measured and theoretical breaking force divided by breaking force multiplied by 100%. This gives us an indication as to whether or not there is any slippage between strands within our sample that would cause skewing in our results

The tensojet and tensorapid are two of the most used instruments in textile testing labs today.

The tensorapid and tensojet are two of the most used instruments in textile testing labs today. These instruments measure warp, weft, and fill yarns, as well as fabrics on a loom. They also test for colorfastness, washability, shrinkage and other properties that affect your finished product.

These tools allow you to test yarns at any point during their production cycle from raw material through production phase to finished goods before they go into stores or onto consumers’ hands!

They provide an excellent opportunity to measure breaking force, elongation, rkm and many other key indicators of quality.

A tensorapid and tensojet yarn test provides an excellent opportunity to measure breaking force, elongation, rkm and many other key indicators of quality.

The tensorapid machine has a minimum diameter of 10mm and a maximum tension of 10N/cm2. The tensojet machine has a maximum tension between 200N/cm2 and 300N/cm2.

Here are some key points regarding these measurements.
  • Breaking force is the amount of force required to cause a strand to break at its point of failure. The breaking force is measured in pounds per inch (lbs/in).
  • Elongation is how much tension was applied to a strand before it broke. It can be expressed as a percentage or as an actual length measurement. The elongation measurement should be taken from 5% or higher on each side of the yarn after wrapping, so if you have multiple wraps on your test piece then it’s best to measure from halfway through each one separately rather than just measuring one wrap instead!
What is breaking force in yarn.
Breaking Force is a measure of the strength of a strand at its point of failure.

Breaking Force is a measure of the strength of a strand at its point of failure. It is calculated using the formula:

breaking force = (density x length) / 2.2

What is elongation in yarn.
Elongation is a measure of how much tension was applied to a strand before it breaks.

Elongation is a measure of how much tension was applied to a strand before it breaks. It’s measured in percentage and can be used as an indicator of the quality of the yarn.

Elongation is not only useful for determining if your strand has been over-stretched and will break within its lifespan, but also what type of yarn it is and how many times you need to test your new batch before sending it out into production.

What is RKM in yarn.
RKM is calculated from the difference between the measured and theoretical breaking force divided by breaking force multiplied by 100%. This gives us an indication as to whether or not there is any slippage between strands within our sample that would cause skewing in our results.
Classimate Yarn Testing Report

The report is broken down into three categories:

  • Sample Attributes – This section includes information about the yarn, including its length and diameter. It also lists any defects or damage detected during testing.
  • Yarn Testing Parameters – In this section, you can find out how much force was required to break a length of yarn (fiber diameter), as well as any other relevant information such as tensile strength and elongation at breakage points.
  • Visualization Tools – This area provides an overview of all results from your test run and allows users to analyze them in more detail by clicking on various features within each analysis category listed above.[
Conclusion

The above analysis shows that there is a significant difference between these two yarns with respect to their breaking force, elongation and RKM values. This could mean that one of them may not be as good as the other and therefore require different treatments before they are used in production processes.

Author: Afzaal Khadim Khan
Owner: Textiles Bar
Lahore Pakistan

For complete understanding of Uster results of yarn please Click Here