Textile & Fashion World: Washing

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16 September 2012

Color Fastness to Wash (ISO 105 C06)

Color Fastness to Washing:

Washed sample

Color fatness to washing means, A specimen of the textile, in contact with one or two specified adjacent fabrics, is mechanically agitated under described conditions of time and temperature in a soap solution, then rinsed and dried. The change in color of the specimen and the staining of the adjacent fabric are assessed with the grey scales.

In my personal experience, in case of fastness test color fastness to washing is the first and most important requirements of buyers. There are a number of ISO test for color fastness to washing.

These are :

1. ISO test no-1
2. ISO test no-2
3. ISO test no-3
4. ISO test no-4
5. ISO test no-5
6. ISO 105 C06

ISO 105 C06 A2S
ISO 105 C06 B2S
ISO 105 C06 C2S

Among them ISO 105 C06 is the first choice of maximum buyers.
Now I will discuss about those fastness test.

ISO 105 C06:
Instruments:

Rotawash / Gyrowash,
Stainless Still Ball,
Multi-fiber fabric,
Grey scale,
Sewing machine,
Thermometer,
Color matching cabinet

Recipe:
Sodium Perborate…………..1 gm/litre
ECE Phosphate……………..4 gm/litre

Sample Preparation:
Sample Fabric………….10 cm*4 cm
Multi fiber fabric…………10 cm*4 cm

Working Procedure:

Collecting the sample from bulk and then conditioning for 04.30 to 06 hours
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Making a specimen of 04 cm*10 cm in size.
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Sewing the specimen with multi-fibre fabric of same size at one corner.
↓
Making the solution of 4gm/litre ECE detergent & 1 gm/litre sodium perborate, (If required SKFL use 0.15 gm/litre TAED).
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Putting the specimen with multi-fibre fabric into the solution in Rotawash m/c
Prog.: C2S Temp.: 60OC/ 40OC Time: 30 min Still ball: 25 pcs
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Rinsing with hot water respectively.
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Squeezing with cold water of the sample is done (Hand Wash).
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Then drying is done at a temperature in the air not exceeding 60OC
↓
The stitching is then broken out except on one of the shorter end.
↓
Measuring the staining and color change by grey scale & make a test report.

For ISO 105 C06 A2S:

Total solution (changeable) ………150 ml
Stainless Still Ball………………………..10 (for hitting)
Time……………………………………………40 min
Temperature………………………………40⁰C

Everything is same.

For ISO 105 C06 B2S:

Total solution (changeable) ………150 ml
Stainless Still Ball………………………..25 (for hitting)
Time……………………………………………40 min
Temperature………………………………50⁰C

Everything is same.

For ISO 105 C06 C2S:

Total solution (changeable) ………50 ml
Stainless Still Ball………………………..25 (for hitting)
Time……………………………………………40 min
Temperature………………………………60⁰C

Everything is same.

http://textilelearner.blogspot.com/

20 December 2011

Denim Washing | Types of Denim Washing | Process of Denim Washing

Denim Washing:

Denim washing is the aesthetic finish given to the denim fabric to enhance the appeal and to provide strength.

Dry denim, as opposed to washed denim, is a denim fabric that is not washed after being dyed during its production.

Denim washing

Much of the appeal of dry denim lies in the fact that with time the fabric will fade in a manner similar to that which artificially distressed denim attempts to replicate. With dry denim, however, such fading is affected by the body of the person who wears the jeans and the activities of their daily life. This creates what many feel to be a more natural, unique look than pre-distressed denim.

Types of Denim Washing:
Denim washing are two types. These are

1. Mechanical washes

Stone wash
Micro sanding

2. Chemical washes

Denim bleaching
Enzyme wash
Acid wash

Some Important Steps in the Process of Denim Washing:
1. Pre treatment ( Desizing, Rinsing, Scouring etc)
2. Enzyme or Stone wash
3. Clean up to adjust the desire effect
4. Bleaching
5. Tinting / Dyeing
6. Sand Blasting
7. Softening & Much more…..

http://textilelearner.blogspot.com/2012/09/denim-washing-types-of-denim-washing.html#ixzz2OHVoDGx5