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Cotton refinement

Refinement of cotton fibres can have multiple goals.

Mercerised cotton has been treated with sodium hydroxide while being held to prevent shrinking. This treatment increases washability, lustre, strength and affinity to dye.

Alternatively, cotton can be treated with sodium hydroxide without applying tension to it. This also increases dyeability.

Treating cotton with sodium hydroxide and sulphuric acid without applying pressure creates a transparent effect. The fabric becomes see-through.

So called wrinkle-free clothing is produced by using overtorqued yarns, depositing artificial resins in the fabric or blending the cotton with synthetic fibers.
The aim of these procedures is making the fabric super low-maintenance.
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