How to Distinguish Silk 30, How to Distinguish Silk

If the silk thread can be distinguished by fire, silk and chemical fiber can be distinguished, but if it is a fabric, it will take a lot of trouble to distinguish whether it is silk or chemical fiber silk, because now it is necessary to compound silk with other fiber silk (yarn) to change the defects of silk fabric.

The simplest, take a small piece of fire and burn it, if the burned ash can be crushed, it is silk. The fabric of chemical fiber is made of petroleum and so on, and like plastic, if you burn it, it will melt into a ball and will not be crushed.

Burn it with a lighter, pinch it with your hands, smell it, smell it, or if it smells like burning hair, it's silk, and vice versa.

The methods of silk to identify the real and fake are: looking, folding, grinding, burning, and pulling. Silk fabrics are soft and natural, bright and not dazzling, while rayon fabrics are shiny and bright, but not soft and harsh.

After pinching the fabric by hand, let go, silk can be crease-free due to good elasticity, and rayon fabrics have obvious creases, and it is difficult to quickly restore the original shape. How to distinguish between real and fake silk fabrics due to the silk appearance of sericin protection and friction resistance, the dry silk fabrics rub against each other, will emit a unique sound of silk, commonly known as "silk sound", and fake will not. Silk fabrics burn slowly, curling into a ball when burning, accompanied by a sizzling sound and emitting a burnt smell similar to that of a singe, and the silk fibers will stop burning immediately after leaving the fire, and the ashes will be fluffy black and brittle.

You can draw a few fibers from the edges, moisten them with your tongue, and lift the ends of the silk and pull hard. After the man-made fiber fabric is wetted, the dry and wet elasticity is different, and the wet place is easy to break, and the broken fiber at the broken end is a hair clump of different lengths.

Observe the shine. The luster of the silk fabric is soft and even, bright but not harsh. The luster of rayon fabrics is also bright, but not soft. Although the luster of polyester yarn is uniform, there is glitter or bright silk. Nylon silk fabrics have a poor luster, as if coated with a layer of wax.

Hand touch feeling. When touching silk fabrics, there is a feeling of pulling hands, while other chemical fiber products do not have this feeling. The rayon fabric is smooth and soft, but not crisp. Cotton silk fabrics do not feel soft.

Look closely at the creases. When the silk fabric is pinched tightly by hand and then released, there is no crease because of its good elasticity. Rayon fabrics have obvious creases after hand-kneading, and the creases are difficult to restore to their original shape. Although the nylon silk fabric has creases, it can also slowly return to its original state, so do not be fooled by its false appearance.

Test fiber pull. Extract a few fibers at the edge of the fabric and moisten them with your tongue, if it is easy to break at the wet place, it means that it is rayon, otherwise it is silk fabric.

Listen for the grinding sound. Because the silk is protected by sericin and abrasion-resistant, dry silk fabrics will make a sound when they rub against each other, so it is called "silk sound" or "silk sound", while other chemical fiber products are silent.