Three failures account for the overwhelming majority of complaints about clothing after purchase: the colour bled, the garment shrank, or the fabric pilled. In most cases the garment was not defective. It was washed in a way that guaranteed the outcome.

Each of the three has a clear mechanism and a clear prevention.

Colour bleeding

Why it happens

Dye that has not fully bonded to the fibre sits loose on the surface. Water, heat and agitation lift it off. It then migrates into whatever else is in the water, and once it is in, it is usually permanent.

Dark, saturated colours are the worst offenders, and reds, deep blues, blacks and rich indigos are the worst of those. Cotton bleeds more readily than synthetics because the dye bond is weaker to begin with.

Prevention

• Test before the first wash. Press a damp white cloth firmly against an inside seam. If colour transfers, that garment washes alone, cold and quickly, for its whole life.
• Cold water, always. Heat is the single largest accelerant of dye release.
• Never soak. Prolonged immersion is what allows dye to leave the fibre and travel. Ten minutes is the ceiling; five is better.
• Wash the first two or three times alone. Loose surface dye is finite. It washes out and then the garment stabilises.
• Add salt or white vinegar to the first wash. Half a cup of salt or a cup of vinegar in cold water helps set the remaining dye. The evidence for this is more traditional than laboratory-grade, but it costs nothing and it does no harm.
• Dry in shade. Sunlight fades dyed fabric and does it unevenly.

If it has already happened

Do not dry the affected garment. Heat sets the transferred dye permanently. Rewash immediately in cold water with detergent, repeatedly if necessary. A colour-run remover may work if applied before the item has been through a dryer or a hot iron. Once heat has been applied, the outcome is usually final.

Shrinkage

Why it happens

During manufacture, fibres are stretched under tension. Heat and moisture allow them to relax back towards their natural length. That relaxation is shrinkage, and it is a return to the fabric's true dimensions rather than a defect.

Natural fibres shrink most: cotton, linen and wool. Rayon and viscose shrink significantly. Polyester barely shrinks at all, which is the one genuine advantage it has over the alternatives.

Prevention

• Cold water. This is the whole answer, most of the time. Heat is what causes fibre relaxation.
• Never use a machine dryer on cotton, rayon, linen or wool. Tumble drying combines heat and agitation, which is the exact combination that shrinks fabric fastest.
• Air dry in shade, flat or on a wide hanger.
• Reduce spin speed. High-speed spinning stresses wet fibres, particularly rayon, which is weak when wet.
• Buy pre-shrunk where offered, and where it is not, expect a small loss on the first wash and account for it in your sizing decision.

If it has already happened

Some shrinkage can be partially reversed. Soak the garment in lukewarm water with a capful of hair conditioner for half an hour, which relaxes the fibres, then gently stretch it back towards its original dimensions while damp and dry it flat. It works reasonably well on wool and cotton, and rarely fully.

Pilling

Why it happens

Short fibres work loose from the surface of the fabric, tangle together under friction, and form small balls that remain anchored to the cloth by longer fibres. It occurs wherever there is repeated rubbing: under the arms, at the sides where a bag strap sits, on the inner thighs, on the back where a chair or a seatbelt makes contact.

Blends pill more than pure fibres, because the stronger fibre in the blend anchors the pill and refuses to let it fall away. This is why a cotton-polyester blend pills more visibly than pure cotton.

Prevention

• Turn garments inside out before washing. The friction then happens on the inner surface rather than the visible one.
• Use a mesh laundry bag, which prevents the garment from rubbing against everything else in the drum.
• Reduce the wash load. An overfilled machine is a friction machine.
• Avoid washing soft fabrics with towels, denim and anything with zips or Velcro. Those are abrasion sources.
• Skip the dryer. Tumble drying is friction under heat.

If it has already happened

Use a fabric shaver or a fine-toothed pill comb. Lay the garment flat and work in one direction with light pressure. Do not use a razor blade freehand; it is the fastest way to convert a pill problem into a hole.

Pilling is cosmetic rather than structural. A shaved garment is entirely wearable and will usually pill less on subsequent wears, because the loosest fibres have already been removed.

The routine, in one paragraph

Turn it inside out. Wash cold. Use a mild liquid detergent. Do not soak. Do not wring. Use a mesh bag for anything delicate. Do not overload the machine. Dry in shade, never in a dryer, never in direct sun. Iron on the reverse.

That single routine prevents all three failures, and it applies to almost everything in an Indian wardrobe.

Related reading

• The Ironing and Steaming Guide, Fabric by Fabric Fabric & Care
• Gifting Ethnic Wear: How to Buy for Someone Else Without Guessing Shopping Guides
• Diwali Dressing for the Whole Family: Five Days, One Wardrobe Plan Festive & Occasion