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Yaa Dyeing Cotton Wool Knit Goods Without Bleaching (Part-3)

Written By Wednesday, 19 December 2018 Edit
Scope of Dyeing Cotton Knit Goods without Bleaching Operation for Energy Saving in addition to Cost Reduction (Part-3)
Md. Palash Hossain
Department of Textile Engineering
Dhaka University of Engineering & Technology (DUET)
Email: palashsakal@yahoo.com


Previous Part


3. RESULTS AND DISCUSSIONS

3.1 Color Measurement Committee (CMC) pass/fail values:

Table 10: CMC pass/fail values for unlike shade %

Shade %
CMC
DE
DL
Da
Db
Comments

Red
0.5
0.63
0.21
-1.53
0.30
Pass
0.25
1.52
-2.69
1.55
1.05
Fail
0.1
2.89
-0.45
-3.06
3.64
Fail

Yellow
0.5
0.37
0.07
-0.55
-0.65
Pass
0.25
0.63
-0.91
-0.72
-1.00
Pass
0.1
0.71
-1.03
-0.39
-1.35
Pass

Blue
0.5
0.93
0.29
-0.54
1.33
Pass
0.25
1.40
-0.49
-0.84
1.79
Fail
0.1
2.35
-0.56
-0.97
2.98
Fail
 Combination 1 (R=0.50,Y=0.01,B=0.01)
0.52
0.51
-0.67
-0.74
0.46
Pass
Combination 2 (R=0.2,Y=0.2,B=0.1)
0.5
0.42
-0.74
-0.22
-0.20
Pass

 
The higher upwardly consequence shows that dyeing without bleaching is possible upto 0.5% red, 0.5% blueish in addition to 0.1% xanthous shades in addition to likewise for specific combination shades (0.5%)

3.2 Images of dyed fabric:
3. iii Results of color fastness to wash test:
a. Results for Red shade: 
Figure-5:- Comparison of color fastness to launder of peroxide in addition to without peroxide treated fabrics for cherry color 0.5%
With the assistance of this graph, it tin flame live concluded that both the results are near same for all fibers except wool fiber. In example of wool, the launder fastness ratings amongst peroxide handling is 4, mostly defined every bit skilful but without peroxide handling the value is greater than iv but less than five which represents ameliorate than good.

b. Result for Blue shade:
Figure-6:- Comparison of color fastness to launder of peroxide in addition to without peroxide treated fabrics for blueish color 0.5%
From the graph, it tin flame live stated that both results almost same for all fibers except wool fiber. In example of wool, the launder fastness ratings without peroxide handling is 4, mostly defined every bit skilful but amongst peroxide handling the value is greater than iv but less than five which correspond ameliorate than good.

c. Result for Yellow shade:
Figure-7: Comparison of color fastness to launder of peroxide in addition to without peroxide treated fabrics for xanthous color 0.1%
The graph shows that amongst bleaching in addition to without bleaching both of the exam results are same for all fibers.

d. Result for Combined shade:
Figure-8: Comparison of color fastness to launder of peroxide in addition to without peroxide treated fabrics for combination color 0.5%
From the graph, it tin flame live stated that both the results are almost same for all fibers except polyamide fiber. In example of polyamide, the launder fastness ratings without peroxide handling is 4, mostly defined every bit skilful but amongst peroxide handling the value is greater than iv but less than five which correspond ameliorate than good.

3.4 Color fastness to rubbing:
a. Result for Red shade:
Figure-9: Comparison of color fastness to rubbing of peroxide in addition to without peroxide treated fabrics for cherry color 0.5%
The higher upwardly graph is shows that dry out rubbing fastness exam ratings are same for both procedure but moisture rating fastness exam ratings are fair to skilful for without peroxide handling whereas amongst peroxide procedure exam rating is good.

b. Result for Blue shade:
Figure-10: Comparison of color fastness to rubbing of peroxide in addition to without peroxide treated fabrics for blueish color 0.5%
The higher upwardly graph shows that dry out in addition to moisture rubbing fastness exam ratings are same for both treated fabrics.

c. Result for Yellow shade:
Figure-11: Comparison of color fastness to rubbing of peroxide in addition to without peroxide treated fabrics for xanthous color 0.1%
From the graph, it tin flame live stated that dry out in addition to moisture rubbing fastness exam ratings are same for both the treated fabrics.

d. Result for Combined shade:
Figure-12: Comparison of color fastness to rubbing of peroxide in addition to without peroxide treated fabrics for combination color 0.5%
The higher upwardly graph shows that dry out in addition to moisture rubbing fastness exam ratings are same for both the treated fabrics.

3.5 Color fastness to perspiration:
a. Result for Red shade:
Figure-13: Comparison of color fastness to perspiration results of peroxide in addition to without peroxide treated fabrics for cherry color 0.5%
From the graph it tin flame live stated that amongst bleaching in addition to without bleaching both the perspiration exam consequence is fair for cotton fiber in addition to skilful for acetate, polyamide, polyester, acrylic in addition to wool.

b. Result for Blue shade:
Figure-14: Comparison of color fastness to perspiration of peroxide in addition to without peroxide treated fabrics for blueish color 0.5%
From the graph it tin flame live stated that amongst bleaching in addition to without bleaching both the perspiration exam consequence is skilful for all fibers.

c. Result for Yellow shade:
Figure-15: Comparison of color fastness to perspiration of peroxide in addition to without peroxide treated fabrics for xanthous color 0.1%
From the graph it tin flame live stated that amongst bleaching in addition to without bleaching both the perspiration exam consequence is skilful for all fiber.

d. Result of Combined shade:
Figure-16: Comparison of color fastness to perspiration of peroxide in addition to without peroxide treated fabrics for combination color 0.5%
Above figure shows that amongst bleaching in addition to without bleaching both perspiration exam results are fair for cotton fiber in addition to skilful for acetate, polyamide, polyester, acrylic in addition to wool.

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