Garment Wash - METHOD OF APPLICATION

GARMENT FINISH Unless any product is characterized by value addition it is now impossible to survive in this highly competitive world market. Processing is important to make a usable but finishing gives value addition to it. It makes garments attractive, comfortable & finishing can incorporate desirable properties. Finishing is the heart of textile processing. Value addition = {(Technology) + (Innovation)} x Quality . The need for competitive strategy that utilizes; • Chemical compatibility to provide one-shot multifunctional finishes. • Cost reduction through process integration and minimizing the consumption of all utilities. • More environmentally friendly and application method. • Cost reduction through minimization of effluent treatment cost. • Improve process control, monitoring and automation. • Greater innovation in chemical finishes. • Quick response through right-first-time, right-on �time, right-every-time finishing. Finishing of textile fabric is carried out to increase attractiveness and/or serviceability of the fabric. Different finishing treatments are available to get various effects, which add value to the basic textile material. The domestic readymade garment sector is booming, and garment processing has emerged as one of the important production routes towards meeting quick changing demands of the fashion market METHOD OF APPLICATION: There are two methods of garment finishing.  Dip process.  Tumbling process Dip process: - • Dip the garment inside out in finishing chemical keeping MLR 1:5. Washing machine may be used. • Rotate the garment for 20 min. • Hydro extract the garment to 70 to 80% pick up. • Tumble dry at 70°C to moisture content 10—12 %. • Turn the garment right side out. • Iron/steam press the garment to set the creases at desired places. • Cure at 150—160°C Tumble method: - • In this process the garment are placed (inside out) into a machine with sealed (not perforated) cylinder and application of recipe by either pumping or spraying. • The drum is turned for 20 min there should not be excessive dripping of chemicals from the garment. If so more tumbling time is allowed. • This method is being used more and more due to the fact that there is no wastage of chemicals. • After saturation the garments are hydro extracted tumble dry at 70°C to 10—20 % pick up moisture content. • The iron and steam press the garments to remove/set creases. Cure at 150—160°C for 8 -10 min. Important features: - • MLR should not be less than 1: 0.85 for the garment weighing 600 gm and 1:1 for those weighing more than 600 gm. • Minimum time of tumbling should be 20 min. • Tumble rotation speed 20-30 rpm. • Tumble drying temp. Should not be more than 70°C. • Moisture retention after drying should be 10- 12%. Wash down effects It can be achieved by a variety of garment processing techniques which are mainly dependent on physical and on chemical abrasion of the surface dye there by producing different wash down or break-in looks. In garment washing the seams, waistband, pockets, cuffs, etc develop a contour, which can be obtained by washing in garment from only. Washing down of garments is the latest development in fashion technology. Washing brings out special effects changing the feel and look of garments Five good reasons can be attributed for washing the garments.  To influence physical properties such as softness, handle, drape or fall , absorbency, creasing etc.  To influence appearance by altering the nature of yarn of fabric or lusture.  To create shrinkage & effects of shrinkage like puckering of garments.  To create abrasion & related effects.  To create a trend in fashion with consistent quality & brand image with range of finishes. Denim washing It is the aesthetic finish given to the denim fabric to enhance the appeal and to provide strength Indigo jeans were once the only item processed by the garment wash method • Emphasis is on Comfort And Softness. Fashion Trends Favor The Broken-in Look And Worn/Faded seams that can only be achieved through garment processing [...]... the inside of the rotary drum A machine used for stonewashing should not be used to dye delicate articles or when abrasion would be detrimental to the fabric It’s gives used look because of varying degrees of abrasion in areas such as the waistband, pocket and seems Degree of colour fading Garments to stone ratio Washing time Size of stone MLR Load of garments Stone weight 0. 5-3 Selection of stone •...DENIM WASHES ARE OF TWO TYPES: 1 Mechanical washes –Stone wash – Micro sanding 2 Chemical washes –Denim bleaching –Enzyme wash –Acid wash Any of these procedures can be modified To fit a particular situation, Depending upon garment type (i.e., heavyweight denim versus lightweight chambray), Available equipment, and Process flow Also, some of these procedures yield garments suitable for... are added to the garments during washing as abradant Due to ring dyeing and heavy abrasion fading is more apparent but less uniform • The degree of colour fading depends on the garment to stone ratio, washing time, size of stones, material to liquor ratio and load of garments • Normally after desizing, stone wash process starts with pumice stone addition in rotary drum type garment washer • Process... dispersion/suspension agent to wash cycle • Intermediate replacement of wash liquor • Using alkaline detergent like sodium per borate with optical brightener as after wash LIMITATIONS OF STONE WASHING: • Quality of the abrasion process is difficult to control outcome of a load of jeans is never uniform, little percentage always getting ruined by too much abrasion • The process is non-selective • Metal buttons... chemical suppliers offer special products that accelerate the wash down process, dependent upon the particular dyestuff used 7 Wash/ tumble action for 2 0-6 0 minutes, depending upon desired effect 8 Drain and rinse 9 Apply softener 10 Tumble dry 11 Invert garments, if previously turned 12 Press, if required STONEWASH • In the process of stone washing, freshly dyed jeans are loaded into large washing machines... varies from 6 0-1 20 mins • Stone wash effect is one of the oldest but highly demanded washing effects • Stone wash process gives “used” look or “vintage” on the garments, because of varying degree of abrasion in the area such as waistband, pocket, seam and body • There are many limitations and drawbacks associated with stone washing process, which can be overcome by using new enzyme based washing technology... Re-coloration of blue threads and blue coloration of white threads, resulting in less contrast between blue and white threads PROBLEMS CAUSED BY STONES: • Damage to wash machineries and garment due to stone to machine and machine to stone abrasion • Increase in labor to remove dust from finished garments • Water pollution during disposal of used liquor • Back staining and re deposition REMEDY OF. .. effect of a faded or worn look as it abrades the surface of the jeans like sandpaper, removing some dye particles from the surfaces of the yarn • A variety of natural and synthetic stones are available for stonewashing with perhaps the most widely used being pumice or volcanic rock As the stones are used, they slowly disintegrate, reducing the severity of the stonewash effect over a period of time... rivets on the jeans in the washing machines get abraded • This reduces quality of the products and life of equipment, and increases production costs • Stones may turn into powder during the process of making the garment grayish in color and rough too • Provides rougher feel than enzyme wash • Stone may lead the harm to the machine parts STONEWASH EFFECT: • In traditional washing process, volcanic rocks... machines and tumbled with pumice stones • It means Pre washed, abraded, faded either regular or irregular looks are produced by subjecting the dyed garments to severe washing treatments • In order to accelerate the garment wash effect and to give garments an even more unique appearance, desirable look and softer hand, abrasive stones were introduced to the wash bath • Variations in composition, hardness, . different wash down or break-in looks. In garment washing the seams, waistband, pockets, cuffs, etc develop a contour, which can be obtained by washing in garment from only. Washing down of garments. DENIM WASHES ARE OF TWO TYPES: 1. Mechanical washes –Stone wash – Micro sanding 2. Chemical washes – Denim bleaching –Enzyme wash –Acid wash