Most Common Denim Washes (Part-2)

When an order comes from buyer in form of washed sample the technical person determine the shade percentage, amount and type of washing to that fabric to get the appearance like the sample. So it is very important to wash the sample fabric to justify his assumption. 

Washing Type &Features	Application
Destroyed/damaged/used/whiskers: Whiskering, also known as 'Cat's Whiskers', are the crease lines around the crotch. Whiskering can be done on the sides of knee and crease marks on the back of the knee. During natural wear, in the portion of a crease, Pigment is removed. Denim garments can be made of old, worn and/or used look by several different ways,such as with the help of laser, sand blasting, machine sanding,hands and in gorabrading by some kind of power tool. With the help of a grinder, whiskering can be produced around the hip to crotch area of the pant. Damaged look of a denim pant can be made by cutting the edges at different areas before washing,such as at bottom, pockets, fly and knee area.
Flat Finish: Flat finish of denim fabric involves mercerization plus calendaring processes to achieve the flat surface.It imparts an even wash down effect and clean surface. The mercerization process swellsup the cotton fibers which is pressed in calendaring to achieved a flat surface.
Ozone Fading: In this technique of denim washing, the garmentis bleached with ozone dissolved in water in a washing machine. However this technique can also be carried out in a closed chamber by using ozonegas. The advantages of these methodsare: There is minimum loss of strength It is a simple method and environmentally friendly. The ozonized water after laundering caneasily be deozonized by UVradiation.

Quick Wash Denim: In normal indigo dyed denim is associated with various problems during washing. The denim fabric manufacturers are in search to development new dyeing method in which the wash cycle can be minimizes. In this regard, Quick wash denim has been introduced in which the fabric is dyed with modified technique of dyeing,sothat during wash cycle, indigo dye can be removed easily during a shorter washing cycle. Quick wash treatment procedure consumes less water and chemicals and required less time for washing, retaining fabric strength. By controlling the ionic formofindigo and cellulose in the dye- bath, the uniformity of indigo dyeing can be achieved. Thealkalis used and pH condition so findigo dye-bath produces table color yield. Advantages of quick washdenim: ·         Quick wash denim requires less indigo dye. The washing treatment also requires less enzymes and oxidizing agent. Hence it is an economical and environmentfriendly process. ·         The development of streaks in garments after washinghas been avoided by using a modified alkali-phcontrolled system giving uniformity ofshade. ·         The washing time is 20-30% less than conventionaldenim.