All Chinese people know the Silk Road in Chinese history. Most people know that silk is from China and has been carried to Europe and the United States. In modern times, it is regarded as a treasure in Japan. Nowadays, few people understand why natural silk is the oldest pride in China. Since the promotion of silkworm cultivation by the ancestor Luo Zhu, the Chinese have formed a close relationship with the silk–the paintings of Zhou and Qin Dynasty, the paintings of the Han Dynasty, the silk of the Tang Dynasty, and the current Hanglu and Shujin. In the history of human civilization, silk-woven products have always been closely related to human life.

Silk – a Unique Product of China

Before the Silk Road in 206 BC, there was no silk outside China. The Silk Road was started by the Emperor Wu of the Han Dynasty (139 years before the BC). It was only in the 105 years before BC that it gradually spread to the West. It took a year when silk reached Rome by the 9600-km silk road. In Rome silk was equivalent to the gold, but the Roman women were still competing to wear. The Chinese sold silk, but the manufacturing process of silk was secret, so that in the 100 years before the BC, the famous Roman writer Weigel still thought that the silk was growing on the tree.

The secret of Chinese silkworm processing has been preserved for 3,000 years, until in 522 AD, the empire of Roman Empire, Justinian, offered a reward , two monks of the Nestor went to China to steal 550 silkworm eggs and placed them in Constantine. Until the mulberry trees in the fort were hatched, People in Rome knew the mystery of silk.

Silk – the Most Skin Friendly Fiber to Human Skin in the World

Silkworms are insects, belonging to the Lepidoptera. After the larvae of silkworm is removed four times, they will first squirt a wire and fix it on the ground. Then they will set up an eagle frame. As a skeleton of the scorpion, the sputum project takes two to three days. Each mature silkworm has a pair of Juan silk glands composed of more than 900 glandular cells.

Silk fibroin secreted by the silk gland is initially in a liquid state, and is discharged into the silk fiber after being discharged into the air by the spinner tube.

Silk fibers are composed of a core protein (about 75%) and sericin (about 25%) from the inner and outer tissues.

Silk core itself still retains 35% of the pore volume, and sericin covering the outer layer also branched chain amino acid with
hydrophilicity, so that silk has excellent moisture absorption function, and it can still heat itself and cool when it is too hot.

Silk fiber has a unit cross-sectional area capable of withstanding a tensile force of 35-44 kg/cm2, and after being stretched by 1/7, it can still be restored to its original shape, and has superior elasticity, softness and fluffiness.