Yaa Bleach Launder Of Woven Denims: Analysis Of Earlier Together With Subsequently Launder Properties (Part-6)

Bleach Wash of Woven Denims: Analysis of earlier together with afterward Wash Properties (Part-6)

S.M. Bappy Rana
Dept. of Textile Engineering
People's Republic of Bangladesh University of Business & Technology
Cell: +8801781630519

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3.13 Shrinkage test:
Shrinkage is the physical care for inwards which a textile becomes smaller than its master copy size, unremarkably through the physical care for of laundry. Cotton fabric suffers from 2 primary disadvantages of shrinking together with creasing during subsequent washing.

There are 2 types of shrinkage occurs during washing.

1. Length wise
2. Width wise

3.13.1 Working procedure:

1. For Shrinkage examination Fabric sample is marked 8"*8" amongst square.
2. Then Sample is washed amongst bleaching pulverization 10, xv together with xxx minute. And dried inwards dryer machine.
3. Then the shrinkage is measured of the sample.

3.13.2 Apparatus:

• Denim Apparels

3.14 Count Measurement:

3.14.1 Apparatus:

1. Bessley residue
2. Template
3. Dead weight

3.14.2 Working procedure:

1. For count mensuration warp together with weft agency yarn is collected from earlier washed together with afterward washed (10, 15, xxx minute) sample.
2. Then the yarn count is measured past times Beasley’s balance.

3.14.3 Count mensuration examination is done past times Beasley’s residue of People's Republic of Bangladesh University of trouble organisation together with technology scientific discipline (BUBT).

Figure: Beasley’s Balance

3.15 EPI & PPI measurement:

3. 15.1 Apparatus:

1. Counting glass,
2. Needle.

3.15.2 Working physical care for of EPI & PPI measurement:

1. For measuring EPI & PPI mensuration the textile sample - Before washed & afterward washed (10, 15, xxx minute) is taken.
2. Then the EPI & PPI is measured past times counting glass.

3. 15.3 EPI & PPI mensuration examination is done past times Counting drinking glass from People's Republic of Bangladesh University of trouble organisation together with technology scientific discipline (BUBT).

Figure: Counting drinking glass

3.16 Comparison of color depth variation:

3.16.1Apparatus:

1. Color Controller machine
2. Grey Scale
3. Denim textile ( Before Wash & After Wash Sample)

3.16.2 Working Procedure:

1. To compare of shade variation nosotros get got the earlier together with afterward launder sample.
2. Shade variation is notified past times the color controller machine.
3. We depository fiscal establishment annotation downwards the number which is notified past times greyish scale.

3.16.3 Color depth comparing is done past times color controller machine from People's Republic of Bangladesh University of trouble organisation together with technology scientific discipline (BUBT).

Figure: Color controller machine

3.16.4 Snap shot of bleach washed denim:

Figure: Color depth comparing afterward bleach washing handling

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