Which of the following washing method should be used to wash silk clothes?

Question

Accepted Answer

The correct option is 2:
The correct washing method for silk clothes is to use "Light pressure." Silk is a natural protein fiber, similar in composition to human hair, and its unique structure makes it exceptionally delicate, especially when wet. When silk fibers absorb water, they temporarily lose a significant amount of their tensile strength, making them highly vulnerable to mechanical stress. Therefore, to prevent permanent damage like pilling, stretching, or loss of its characteristic sheen and softness, the cleaning action must be as gentle as possible. 'Light pressure' refers to the technique used in hand-washing where the garment is gently submerged, lightly pressed, and carefully swished in cool water with a mild, pH-neutral detergent, allowing the soap solution to lift the dirt without any harsh rubbing or vigorous movement. This controlled, minimal force ensures the integrity of the fragile wet fibers is maintained throughout the cleaning process, protecting the fabric's shape and luxurious quality.

The incorrect option is 1:
Friction, which involves scrubbing, rubbing, or wringing the fabric, is explicitly the most damaging method for cleaning silk. The rough mechanical action of friction causes the individual protein filaments to rub against each other or against the basin surface, which quickly leads to fiber breakage. This physical abrasion irreversibly roughens the smooth surface of the silk, destroying its natural sheen and resulting in visible fiber deterioration, commonly known as pilling or fuzzing. Because silk is at its weakest when wet, applying friction can also cause permanent deformation by stretching the threads out of shape. Thus, using friction directly contradicts the essential care principle of preserving silk's delicate structure and is highly discouraged.

The incorrect option is 3:
While many modern machines feature a 'delicate' or 'silk' cycle, the term "Washing Machine" as a primary method is generally incorrect because the machine's operation is based on mechanical agitation, which is too harsh for pure silk. Even on the gentlest setting, a washing machine subjects the fabric to tumbling and a centrifugal spin to remove water, both of which constitute significant physical stress. This excessive agitation can easily lead to severe wrinkling, permanent stretching, and weakening of the fibers, potentially causing shrinkage or snagging, especially if the garment is not placed in a protective mesh bag. The controlled, minimal pressure of hand-washing remains superior, as the machine's inherent mechanism of action is fundamentally more aggressive than the light touch required for this delicate fiber.

The incorrect option is 4:
Using Starch is a technique employed to add stiffness and body to cellulosic fabrics like cotton or linen, making them crisp and easier to iron. Silk, being a natural protein fiber, is valued precisely for its fluid drape, softness, and beautiful natural luster. Applying starch would counteract these luxurious and desirable characteristics by coating the fibers and making the silk stiff and less pliable. Furthermore, starch is a cleaning *additive*, not a washing *method*, and its residue can dull the natural sheen of silk, leaving a white or cloudy film on the surface. Therefore, starch is functionally and conceptually unsuitable for the proper care and maintenance of silk garments.