Fibre Properties

UAK-1 + and UAK-1S

The Others

Length Distribution

and Short Fibre Content %

-Histogram,Staple Diagram ,Fibre Graph and Fibre Density Charts and their numerical values

-Short Fibre Content by number and mass

-Very short fibres percentages, Effective Short Fibre Content %,

-Mode ,median ,skewness ,kurtosis , CVN  parameters to distinguish differences between similar samples

-Can any testing device measure the length properties of originally coloured material's card flat waste and comber noil ?

-What's the importance of staple diagram of comber noil in process optimization ?

-What's the importance of staple diagram of card flat waste in process optimization ?

-What's the percentage of short fibres and long fibres in comber noil ?

-What's the percentage of short fibres and long fibres  in card flat waste ?

-UAK-1 + can PLOT STAPLE DIAGRAMS OF card flat waste and comber noil as raw cotton and slivers.

Measured noil % is 20 and UAK-1 + and comber data predicts this value 21,144

-Convert Fibro Graph Curve of other systems to Staple Diagram and compare this new staple curve with any other system's Staple Diagram. Are they compatible to each other ? Check the maximum fibre length in both systems.

-Can you measure the length distribution of reactive black dyed cotton samples or 100 % Man-Made Fibres in other systems ?

-How can the differences be distinguished between samples having similar UHM, mean fibre length and SFI values on others systems ?

-Can testing devices that draws staple diagram could be used to optimize combing noil % and project % of combing noil according lap fibre properties and noil setting distances ?

-If fibre length measurement is based upon the time taken for each fibre in the air flow multiplied by air velocity then low and high micronaire cotton fibres even having the same fibre length would they travel at same velocity?

What are the factors effecting the fibres velocity in air flow ? Check the short fibre content % as Moriad Knifa did . Card in and Card out .Is there any statistical significant differences ?

-Can you measure card flat waste and comber noil at the same time and see the difference ?

For systems claim that draws the staple diagram by weight can they predict comber noil % from staple diagram they have ?

Color and Distribution

UAK-1 +  plots the   Color  Histogram and  computes   all  the  statistical  color  values  such  as






-Standard Deviation

- Total number of shades

- CV %

Color Intensity  Parameters

-Whiteness Index  %

-Darkness Index %

-Lightness Index %

-Yellowness Index %

There are only Rd and +b. How can you find the differences between samples having similar Rd and + b values ? Is there only one color in cotton sample .

-There are more than 200 unique colors in any cotton sample tested How can color measurement be restricted to only two values?

-Add some trash and measure the color again.

-Does +b really predict the yellowness of fibres?

Waste and Noil

-Non-Lint Content %(Trash , Seed Coat Fragments ,Dust)

-Foreign Matter %

-Loose Fibres (% Yellow Fibre + White Specks Fibres)

-Usable Fibres %

Can you test card under case and blow room waste and find % of usable fibres in other systems ?

Non Fibres and Non-Usable Fibres Analyses

Non-Lint Content %(Trash , Seed Coat Fragments ,Dust)

-Foreign Matter %

-Loose Fibres (% Yellow Fibre + White Specks Fibres)

-Usable Fibres %

-What's the differences of Trash Count , Area % of blend and Card entry ?

-Can you measure seed coat fragments and dust ?

- Is total blowroom and Card Waste only affected by trash % ?

-What are the influences of Yellow and Immature Fibres on total blowroom+ Card and Comber Noil percentages ?

Micronaire Distribution

-Effect of non-lint material upon micronaire readings is not significant from bale to ring frame

-Effect of moisture upon micronaire readings is not significant from bale to ring frame

-No weighing of sample is required

-Dyed cotton fibres/slivers could also be tested with special technique.

-Distribution and statistical analyses of fineness and maturity values -Contamination and color measurement takes place at the same time

-Thanks to real micronaire histogram of UAK-1 + system to identify the different origins in cotton mix and optimization of blending to avoid dye take up problems in cotton fabrics.

-Are all cotton fibres at same diameter and surface area?

-Isn't there any deviation in x-section of cotton fibres ?

-Why exists a difference between microanire value of Comber Noil and Blend ?

-Add some trash to sample and test the micronaire again

-Dry the samples and test it again

-Moisture the sample and test it again

-Calibrate with low microanire and test it with high microanire

-Calibrate with high microanire and test it with low microanire

-Test the calibrated cotton sample 100 times

Fineness/Maturity Distribution

Direct Measurement of Maturity  with  two new systems

image  Processing  UV system

Image Processing Surface System

Distribution of  fineness and maturity  parameters

-What's correlation of estimated maturity and measured maturity in the other systems ?

-What's the correlation of Maturity on air-flow systems that measures x sections of each single fibre and x-Section Image Analyses ?

-Are the existing x-section Image Analyses system for determining the Fineness/Maturity reliable enough to determine the perimeter?


Correlation with Fibre Strength Presley 1/8 in gauge is R=0,94

-Test the same sample with calibrated short strong ,long strong and more humidity and see the differences.?

-What 's the correlation coefficient R for Strength (g/tex) and Presley 1/8 inch g/tex?

Neps and Neps Distribution

Comprehensive Neps Analyses for Problem Solving and Improving Yarn and Fabric Quality

-Level of  deviation from fibre surface structure-neps distribution Neps /1km in yarn

-Level of  fibres  accumulation and entanglement (very short thick places)

-UV neps  (neps causes  white specks)

-Neps surface (immature fibre neps)

-Neps Tendency Index i.e. ratio effective length to fibre radius

Neps Map Comber Noil and Neps /1km of Yarn R=0,99

Neps Count Per Gram.

-What's the correlation R between Comber Sliver Neps/Gram and Neps /1km of yarn?

-Change the break draft in Roving and see the changes in Neps in Yarn . Can you measure these variation in roving sliver in Neps per gram ?

-Set the closest setting of last passage of draw frame and see the changes in Neps in Yarn.

-Cotton Sample A having more Neps/Gram compare Cotton Sample B why may lead to less Neps in Yarn ?

-What are the real causes of Neps in Yarn ?

-Fibres accumulated by air currents prior to carding are they really neps ?

-What are the effects of drafting on Neps per km of yarn?

Number of Tests and Number of Parameters

Total number of tests are 2 and total number of parameters more than 88 and number of charts are more than 10

-20 secs per sample testing Time

- How many number of tests and how many parameters ?

UAK-1 + adds on (Innovations)


The function of carding and subsequent processes are to straighten hooks and make parallel the fibres. The performance of these processes could be checked by Itru CV % Fibre Parallelism (Coefficient of Variation Percentage of Fibre Parallelism) parameter developed for the 1st time in the world.

CV% of Fibre Parallelism could be used to check off- standard running machinery and processing stages from bale to ring frame delivery.


Itru has brought to Spinning Technology a new term called “ Surface Damaged Fibres Distribution Range %“(SDFR%) .Surface Damaged Fibres Distribution Range % has a great influence on the formation of neps and white specks on dyed fabrics as well as pilling fault

UV Analyses

and Color Analyses

UV%, UV Immaturity and UV White Specks

-High microanire and high maturity cotton fibres can exhibit dye take up variation and white specks and this can only be determined by UV Immature Fibres % developed for the 1st time in the world.

-Color Histogram for comparison of cotton samples

Dirtiness and Cleanness

Raw materials  could get dirtied in processing and this may cause severe problems in subsequent  processing especially dyeing 

Micronaire Histogram

To identify different origins in one mix

Mass Spectrograph Curve

Mass Spectrograph Curve could be effectively used to control Spinning Quality and machine performance according to count of slivers or yarns targeted machine CV% of yarn and Index and CV limit could be determined according to fibre measured properties.

New Method of Measurement of Man-made Fibres and Colored Cotton Fibres





-Color and

colored  fibres  and  100% Man-Made  fibres  could be  also be measured  with  Itru  Fibre  Tester UAK-1++.

-For man-made  fibres  over-cut  and lower  cut  fibres

-For blends  fibre breakage  within each blend

-Over stretched fibres  could also be  analysed

Length Distribution

-Histogram,Staple Diagram, Fibre Graph , Fibre Density

-Testing Card Sliver and Comber Sliver at the same time on same chart as well as differently

-More than one sample staple diagram on same chart

Fabric Fibre Level Analyses

% of White Specks in Dyed Cotton Fabric Samples at Fibre Level Analyses

Application Range

-Not only for raw cotton but also slivers and waste .For cotton and man-made fibres and their blends.

Can others test slivers without distorting their direction ?

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