Silk Impressions® is certified as asthma & allergy friendly.
The production of silk originates in China in prehistoric times, as early as in the Neolithic (Yangshao culture, 4th millennium BCE). Silk remained confined to China until the Silk Road opened at some point during the later half of the first millennium BCE. China maintained its virtual monopoly over silk production for another thousand years. Not confined to clothing, silk was also used for a number of other applications, including writing, and the color of silk worn was an important indicator of social class during the Tang Dynasty.
Silk cultivation spread to Japan around 300 CE, and, by 522 CE, the Byzantines managed to obtain silkworm eggs and were able to begin silkworm cultivation. The Arabs also began to manufacture silk during this same time. As a result of the spread of sericulture, Chinese silk exports became less important, although they still maintained dominance over the luxury silk market.