1. Well come to This slide
Presentation
Presented by-
Md. Abu Naser
M.Sc. In Textile Engineering (2nd
Batch)
Wet processing Engineering
Roll:2013-02-03-006
Date: 24.05.13
Bismilla hir-rah ma-nir-rahim
01

2. COMPARISON OF KNIT FABRIC PROPERTIES
PRODUCED FROM RING & COMPACT YARN
A Slide presentation
by
Md.Nur-E Mostofa
Student No.:2011-1-005
Submitted to-
Dr. Shah Alimuzzaman,
Associate Professor and Head,
Department of-
Fabric Manufacturing Engineering,
Bangladesh University of
Textiles(BUTex),
02

3.  The ultimate goal of spinning technologists is focused on higher
productivity, combined with adequate quality.
 Reduction of cost is the only solution, which is possible through
increasing the production per spinning position.
 Compact spinning is simply the modification of conventional ring
spinning system at drafting zone with some addition and modification in
its existing drafting system.
INTRODUCTIONINTRODUCTION
Literature reviewLiterature review
A comparative study of the characteristics of compact yarn-based knitted
fabrics.
The comparative study of the combed yarn’s versus compact yarn’s fabrics.
Effects of compact spinning on yarn quality and fabric properties comparison
with combed yarn fabric. 03

4. DefinitionDefinition
There are two terms are involve in this Slide presentation such
as compact yarn’s fabric and ring yarn’s fabric
Compact yarn can be defined as the vast technology in ring
frame, when spinning triangle are form between draft zone
delivery roller to twist incersion point then the perforated roller
are used for air suction to reduce the hairy and projecting fiber
on outer surface of yarn body.
Spinning triangle and it’s geometric
view.
Compact spinning system versus ring spinning system
04

5.  The vast technology of ring spinning system- the major
effect on fabric properties by visual sensation with
projecting fiber and hairiness which is mostly affected by
the individual technology. Figure shows that- the compact
yarn structure are founded the less hairy fiber to
comparative the ring yarn structure
Microscopic view of yarn hairiness on compact & ring yarn.
05

6. OBJECTIVES
The overall objective of this study was to assess the effect of fabric properties
change when we considering of compact yarn’s fabric to compare the ring yarn’s
fabric by fabric produce yarn at same count and other properties are same and
contribution on fabric properties after dyeing process.
To compare the fabric properties between the compact yarn’s fabric and ring spun yarn’s
fabric.
To evaluate the acceptability of the new spinning system with the prospect of lesser
amount of twist, which enables increased production speed to be reached which ultimately
results in cost saving production.
To find out the change of physical and chemical properties of compact yarn’s fabric and
ring spun yarn’s fabric after dyeing process.
To assess the comparative study on both types of fabrics.
To provide the environment friendly and eco- friendly system by the strategically of
compact spinning system and subsequent process.
To match the same shade in dyeing process and improvement of fabric properties.
06

7. INSTRUMENTATION
01. Materials
For example, 30/1 Ne cotton classic ring yarn’s (RX-240,
Toyata, Japan) fabric and 30/1 Ne cotton compact yarn’s
(K-44, Rieter, Switzerland) fabric were spun from the
same specification of cotton fiber/yarns
Raw Cotton Specification (AFIS Test)
Si.no. Specification Name Value
01 Upper Quartile Length (UQL)in wt. 28.5
02 Short Fiber Content (SFC)in wt. 10.0
03 Short Fiber Content (SFC)in no. 27.8
04 Fineness(m Tex) 151
05 Maturity 0.82
06 Neps(cont./gm) 273
07 Seed Code Neps(SCN) 31(Cont./gm)
08 Reflectance(Rd) 82.5
07

8. Raw Cotton Specification (HVI Test)
Si.no. Specification Name Value
01 Average Mic 4.46
02 Length(mm) 28.42
03 Spinning Consistency Index (SCI) 121
04 Uniformity 81.4
05 Short Fiber Index (SFI) 8.5
06 Elongation Percentage 6.5
07 Reflectance (Rd) 75.9
08 Yellowness (+b) 9.7
Yarn SpecificationYarn Specification
Si.no. Specification Compact Ring
01. Tenacity (CN/Tex) 18.67 16.67
02. CSP 2473 2411
03. IPI 38 35
04. Hairiness 430 2775
05 TPI 19.46 20.28 08

9. Fabric Specification
For example, single jersey fabrics are knitted from these
individual types of yarns such as compact yarns and ring
spun yarns in same circular knitting machine (Fukuhara).
Si. No.Si. No. Compact yarn’s fabricCompact yarn’s fabric Ring yarn’s fabricRing yarn’s fabric
0101 Yarn count (Ne): 30Yarn count (Ne): 30 Yarn count (Ne): 30Yarn count (Ne): 30
0202 Machine dia: 32 inchMachine dia: 32 inch Machine dia: 32 inchMachine dia: 32 inch
0303 Machine gauge: 22Machine gauge: 22 Machine gauge: 22Machine gauge: 22
0404 Stitch length: 2.77 mmStitch length: 2.77 mm Stitch length: 2.74 mmStitch length: 2.74 mm
0505 Fabric width: 60 inchFabric width: 60 inch Fabric width: 60 inchFabric width: 60 inch
0606 G.S.M: 150G.S.M: 150 G.S.M: 150G.S.M: 150
09

10. 02. Machine
Si. No. Machine Name Model Brand Origin
01 Infrared lab dyeing
machine
Super mat Co power Taiwan
02 Gyro washing machine 415/8 James H.
Heal
U. K.
03 Combined laboratory
oven
HX-30 James H.
Heal
U.S.A.
04 Light box CAC-60 Verivide U. K.
05 Spectrophotometer Data color-650 - U.S.A.
06 Bursting strength tester BSTN2-
Double
Hydraulic U.K.
07 Pilling tester ISO 12945- 1:2000 (E) U.K.
08 Shrinkage/Spirality
tester
Electrolux cater James H.
Heal
U.K.
09 Perspiration tester B-TEX ISO U.K.
10 Rubbing fastness
Tester
Crock master James H.
Heal
U.K.
10

11. 03. Process
For example,after pretreatment process both types of sample
were dyed under the same condition with infrared sample
dyeing machine. Both types of knitted sample were dyed in 2%
shade exhausted dyeing method at 90 minute with reactive
dye.
Dyeing Parameters
Sample type: Compact yarn’s sample
Yarn count: 30/1 Ne
Fabric Gsm:150
Fabric state: Grey state.
Sample type: Ring spun yarn’s sample
Yarn count: 30/1 Ne
Fabric Gsm:155
Fabric state: Grey state
Flow chart of dyeing:
Pretreatment
Dyeing Process
Aftertreatment
11

12. Pretreatment, Dyeing and Aftertreatment Curve of Dyeing Process
Add auxiliaries &
dyes
Add Salt
Add Sample at 40o
C
Add alkali & run 60o
C × 60 min
Normal hot
Neutralization
Hot wash at 90 o
C × 10 min
Cold wash
Time
Temp
eratur
e
Spectrometer & Dyeing Machine
Spectrophotometer (Data color)Spectrophotometer (Data color) Infrared lab dyeing machine 12

13. Testing Process
To those engaged in the production, distribution, and consumption of
textile, testing can be valuable aid provide that the instrument and
techniques are used effectively.
Method name Test name Sub test name
Testing method
Physical test
I. Bursting strength test.
II. Pilling test.
III. Shrinkage test.
IV. Spirality test.
Chemical/
Physiochemical test
I. Color fastness to wash (Gyro wash).
II. Color fastness to perspiration test
III. Color fastness to rubbing test.
13

14. Si. No. Test name Machine/Equipme
nt
Sample size
I Bursting strength test. Hydraulic bursting
strength tester
Dia-1.25
+0.5˝
II Pilling test. ISO 12945-
1:2000(E)
5 x 5 inch2
III Shrinkage test. Electrolux
Washcator
50 x 50cm2
IV Spirality test. Electrolux
Washcator
50 x 50cm2
V Color fastness to wash(Gyro
wash).
Gyro washing
machine
10 x 04 cm2
VI Color fastness to perspiration
test
Perspiration tester 10 x 04cm2
VII Color fastness to rubbing test. Crock meter 14 x 05cm2
Testing Process Specification
14

15. RESULTS & OUTLINS
01. Bursting Strength Test Results
a= Compact yarn’s Samplea= Compact yarn’s Sample
b= Ring yarn’s Samb= Ring yarn’s Sample
Graphical representation of bursting strength test (Two dimensional
Graphical representation of bursting strength test ( Three dimensional).
).
15

16. 02. Pilling Test Results
Graphical representation reveal that, the fabric samples out of compact
yarn’s displayed better pilling behaviors after dyeing process.
16

17. 03. Shrinkage Test Result
Graphical presentation shows that, the fabric samples from compact yarn’s fabric
displayed the best results of shrinkage test results with similar condition of ring
yarn’s fabric after dyeing process.
Si. No. Sample type Spirality (percentage)
01 Compact yarn’s sample 0-1%
02 Ring yarn’s sample 0-3%
04. Spirality Test Result
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18. 05. Hairiness Test Result
View: Microscopic view
Fabric side: Face side
Fabric type: Compact yarn’s fabric
Color: Red
View: Microscopic view
Fabric side: Face side
Fabric type: Ring yarn’s
fabric
Color: Burgendy color
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Microscopic view of yarn hairiness on compact & ring yarn.

19. 06. Gyro wash Test Result
07. Perspiration Test Result
19

20. 08. Rubbing Fastness Test Result
Graphical presentation reveal that, the fabric samples
from compact yarn’s fabric displayed the best results of
color fastness to rubbing fastness test results are
comparatively best performance to the ring yarn’s fabric
20

21. CONCLUSION
Fabrics knitted from compact yarns have divergent visual properties;
namely, they are more brilliant and glossier.
During the testing, we noticed that- fabrics knitted from compact yarns
had finer and smoother handling quality.
The test results displayed that the fabric samples knitted from compact
yarn’s fabric exhibited better bursting strength values at every production
stage, but this experimental test results shows that- the compact yarn’s
fabric comparatively less PSI are required to the ring yarn’s fabric.
After dyeing process, the overall conclusion that- the less absorbency
properties of compact yarn’s fabric comparison with the ring yarn’s fabric;
because of their compactness of yarn and fiber in yarn surface. The finer
and smoother handling quality and more brilliant & glossier. The most
important visual properties of compact yarn’s fabric are less hairiness
comparison with the ring yarn’s fabric. But after dyeing process the
chemical properties displayed the same results 21
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