Pat silk

A set of Mekhela-Chadar made with Pat silk.

Pat silk or Mulberry silk of Assam (Assamese: পাট ৰেচম) is a variety of domestic silk in Assam, India. It is usually brilliant white or off-white in colour. Its cloth can dry in shadow. The larvae of the Pat Silkworm's preferred food is nuni (white Mulberry plant: Morus alba) leaves. The silk has a natural white tint and is known for its durability and glossy texture. Pat silk, like other Assam silks, is used in products like mekhelas, chadars and other textiles.

Domestic silk moths are closely dependent on humans for reproduction, as a result of millennia of selective breeding. Wild silk moths are different (having not been selectively bred) from their domestic cousins; they are not commercially viable in the production of silk.

In India, the major mulberry silk producing states are Karnataka, Andhra Pradesh, West Bengal, Tamil Nadu and Jammu & Kashmir which together accounts for 92 % of country's total mulberry raw silk production.^[1] Karnataka produces 9,000 metric tons of mulberry silk of a total of 14,000 metric tons produced in the country, thus contributing to nearly 70% of the country's total mulberry silk. In Karnataka, silk is mainly grown in the Mysore district. The mulberry silk produce in Karnataka is called Mysore silk and Pat silk is the mulberry silk produce in Assam.

Sericulture in Assam is an ancient industry without a precise start date. Pat production received great patronage from the Ahom dynasty (1228–1826).

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