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

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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),

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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 reviewA 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

DefinitionDefinitionThere are two terms are involve in this Slide presentation such as compact yarn’s fabric and ring yarn’s fabricCompact 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 system04

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

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.

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INSTRUMENTATION

01. MaterialsFor 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) 82.507

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 SpecificationSi.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

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

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02. MachineSi. 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

testerElectrolux cater James H.

Heal U.K.

09 Perspiration tester B-TEX ISO U.K. 10 Rubbing fastness

TesterCrock master James H.

Heal U.K.

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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 sampleYarn count: 30/1 NeFabric Gsm:150Fabric state: Grey state.

Sample type: Ring spun yarn’s sampleYarn count: 30/1 NeFabric Gsm:155Fabric state: Grey state

Flow chart of dyeing:

Pretreatment

Dyeing Process

Aftertreatment

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Pretreatment, Dyeing and Aftertreatment Curve of Dyeing Process

Add auxiliaries & dyes

Add Salt

Add Sample at 40oC

Add alkali & run 60oC × 60 min

Normal hot

Neutralization

Hot wash at 90 o C × 10 min

Cold wash

Time

Temperatur

e

Spectrometer & Dyeing Machine

Spectrophotometer (Data color)Spectrophotometer (Data color) Infrared lab dyeing machine 12

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.

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Si. No. Test name Machine/Equipment

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

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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).

).

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02. Pilling Test Results

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

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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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05. Hairiness Test Result

View: Microscopic viewFabric side: Face sideFabric type: Compact yarn’s fabricColor: Red

View: Microscopic viewFabric side: Face sideFabric type: Ring yarn’s fabricColor: Burgendy color

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Microscopic view of yarn hairiness on compact & ring yarn.

06. Gyro wash Test Result

07. Perspiration Test Result

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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

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CONCLUSIONFabrics 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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