Decoloration of textile due to polythene packing

I have noticed that several times fabric or garment of earth tone decolor due to contact of polythene in presence of sunlight .  It happens due to reaction of sunlight heat under the humid condition if any reactive dyed fabric comes under direct touch with polythene . 

 The color discharge in reactive dyed fabric when packed in polythene and exposed to sunlight could be due to a few chemical and physical interactions:

1. Heat Buildup: Polythene can trap heat, creating a localized high-temperature environment. This may accelerate dye degradation or destabilize the dye-fiber bond.

2. Photochemical Reaction: Sunlight, especially UV rays, can trigger photochemical degradation of dyes. The polythene might act as a lens, intensifying exposure and causing accelerated fading.

3. Chemical Interactions: Some dyes or residual chemicals in the fabric may react with plasticizers or stabilizers in the polythene, leading to a breakdown of the dye.

4. Moisture & Oxidation: If any moisture gets trapped inside, combined with heat, it can create oxidative conditions that weaken the dye fixation on the fabric.

   
   

   It is seen that Blues and Greens shades often contain dye components that are more sensitive to photochemical reactions, leading to fading or discharge , In this process Blue dyes gets discharge and fabric turns to orange tone.

   
   

   As a fabric manufacturer there is very less what a dyeing master can do . But by  Applying dye fixatives can help up to certain limit. Sometimes anti Ozon fading chemical also help to avoid such reaction. 

   
   

   Store Fabrics Properly – Avoid direct sunlight exposure during storage and transportation . The best solution of precaution is to  using opaque or tinted packaging material.