Yaa Garment Washing: An Effective Procedure For Beautification Of Garments (Part-7)

Garment Washing: An Effective Process for Beautification of Garments (Part-7)

Rahat Khan
Dept. of Apparel Manufacturing
Atish Dipankar University of Science together with Technology
Cell: +8801717781833
Email: rahat.info@gmail.com

Previous Part

5.1.3 Color fastness to rubbing
This exam is designed to make upward one's hear the score of color which may live transferred from the surface of a colored textile to a specific crock meter exam cloth for rubbing (dry together with moisture state).

Equipment:

Suitable crock meter
Cotton rubbing cloth (desized, bleached without finish)
Gray scale for staining

An Effective Process for Beautification of Garments Yaa Garment Washing: An Effective Process for Beautification of Garments (Part-7)

Fig-22: Crock meter

Test specimen:

If the textile to live tested is fabric:
Two pieces 14cmX5cm are required for dry out rubbing & ii for moisture rubbing. One specimen of each twain shall stimulate got the long management parallel to the warp yarn & the other parallel to the weft yarns.

Test procedure:

Dry rubbing test:

At outset the sample of 14cm was cutting for warp & 5cm for weft direction.
The exam sample was locked on to the base of operations of the crock meter together with thence that it lies apartment & tight for testing.
Then the length & width management of the exam specimen was kept parallel to the management inwards which the rubbing is to live conducted
Then the spiral clip was used to laid upward a 5cmX5cm of the white, cotton wool rubbing exam cloth to the finger of the crock meter. The weave of the exam cloth should live parallel to the management of rubbing.
Then the covered finger was lowered on to the exam sample.
Then the manus crank was turned & 10 consummate bicycle of the crank was completed
Then the white rubbing exam cloth was removed from the finger
Then color transfer was evaluated past times using greyness scale for staining nether measure lighting

Fig-23: After crocking exam (dry sample)

Wet rubbing test:

At outset the sample of 14cm was cutting for warp & 5cm for weft direction.
The exam sample was locked on to the base of operations of the crock meter together with thence that it lies apartment & tight for testing.
Then the length & width management of the exam specimen was paralleled to the management inwards which the rubbing is to live conducted
Then the spiral clip laid upward was used, a 5cmX5cm foursquare of the white, cotton wool rubbing exam cloth to the finger of the crock meter. The weave of the exam cloth should live parallel to the management of rubbing.
Then the covered finger was lowered on to the exam sample.
The manus crank was turned & 10 consummate bicycle of the crank was made.
Then the white rubbing exam cloth was removed from the finger.
Then unopen to other sample of white cotton wool exam cloth was wetted inwards the distilled water. The moisture sample should moisture amongst 100% take-up.
Then the cotton wool exam cloth was dried inwards air
Then the rubbing exam cloth was removed from the finger & color transfer was evaluated past times using the greyness scale for testing nether measure light.

Fig-24: After crocking exam (wet sample)

Evaluation:
The contrast betwixt white rubbing cloth was compared amongst the staining greyness scale & rated from 1-5 & changing inwards the tested specimen amongst changing greyness scale.

Test report:
1. For dry out rubbing test:

One rating (1-5) for warp direction
Another (1-5) for weft management

2. Wet rubbing test

One rating (1-5) for warp direction
Another (1-5) for weft management

Experimental data:

1. For denim textile without wash:

Staining	No.	Length wise	Width wise
Dry	1	¾	¾
	2	3	¾
	3	4/5	4
Wet	4	¾	2
	5	½	½
	6	1	2

Average grade/ make of testing: 1-5 grades
Interpretation of grade: (5) Excellent, (4) Good, (3) Fair, (2) Poor, (1) Very pitiable

2. For enzyme wash:

Staining	No.	Length wise	Width wise
Dry	1	5	4/5
	2	4/5	5
	3	4/5	4/5
Wet	4	2	2/3
	5	½	3
	6	2/3	2

Average grade/ make of testing: 1-5 grades
Interpretation of grade: (5) Excellent, (4) Good, (3) Fair, (2) Poor, (1) Very pitiable

3. For lite bleach:

Staining	No.	Length wise	Width wise
Dry	1	5	5
	2	5	5
	3	5	5
Wet	4	¾	¾
	5	3	4
	6	¾	4

Average grade/ make of testing: 1-5 grades
Interpretation of grade: (5) Excellent, (4) Good, (3) Fair, (2) Poor, (1) Very pitiable

4. For stone enzyme:

Staining	No.	Length wise	Width wise
Dry	1	4/5	4/5
	2	5	4/5
	3	4/5	5
Wet	4	2	½
	5	2	2
	6	2	2

Average grade/ make of testing: 1-5 grades
Interpretation of grade: (5) Excellent, (4) Good, (3) Fair, (2) Poor, (1) Very pitiable

5. For medium bleach:

Staining	No.	Length wise	Width wise
Dry	1	5	4/5
	2	4/5	4/5
	3	5	5
Wet	4	2/3	3
	5	3	¾
	6	2/3	3

Average grade/ make of testing: 1-5 grades
Interpretation of grade: (5) Excellent, (4) Good, (3) Fair, (2) Poor, (1) Very pitiable

6. For manus whicker:

Staining	No.	Length wise	Width wise
Dry	1	4/5	4/5
	2	4/5	4/5
	3	4/5	5
Wet	4	¾	3
	5	3	2
	6	2/3	2

Average grade/ make of testing: 1-5 grades
Interpretation of grade: (5) Excellent, (4) Good, (3) Fair, (2) Poor, (1) Very pitiable

7. For pattern whicker:

Staining	No.	Length wise	Width wise
Dry	1	5	4/5
	2	5	5
	3	5	4/5
Wet	4	3	2
	5	3	2/3
	6	3/4	2

Average grade/ make of testing: 1-5 grades
Interpretation of grade: (5) Excellent, (4) Good, (3) Fair, (2) Poor, (1) Very pitiable

8. For potassium permanganate: