Silk Yarn:

Kianco Reeled Silk Yarn,
Reeled, or filament silk is the highest quality yarn and is very white and shiny. First the cocoons are inspected and sorted, as only those with a perfect shape can be used for the reeling procedure. Cocoons are soaked in warm water to soften the gummy sericin. The silken strand from a single cocoon is too fine to use alone, so individual filaments of 6-20 cocoons are unraveled at the same time, travelling through a very small eye. The softened sericin dries, hardens and binds the strands together to become one thread the size of a human hair. The majority of reeled silks supply large industrial looms.

Reeled Yarn			yd/lb	m/kg	skein weight
	#0	Bombyx Silk	1,450	2,900	50g (1.8oz)
	8/2	Bombyx Silk	2,800	5,630	80g (2.8oz)
	Fine Cord	Bombyx Silk	3,100	6,230	80g (2.8oz)

Spun Silk Yarn,
The weak filament of the transparent silken envelope remaining from the reeling process, and the damaged, discolored, or imperfectly shaped cocoons become the raw material for lustrous, creamy colored spun silk yarn. This cocoon "waste" must first have the sericin removed (degummed) with soap and water. Next, the fiber is cut into uniform lengths and carded to remove short tangled bits as well as the brown pupa inside the cocoons. Combing lays all the fibers parallel in a sliver which is spun into a shimmering yarn. Spun silk is the most familiar yarn made

Spun Yarn			yd/lb	m/kg	skein weight
	20/10	Bombyx Silk	950	1,900	50–80g (1.8–2.8oz)
	6 Strand Floss	Bombyx Silk	2,450	4,925	105-120g (3.6-4.2oz)
	12/2	Bombyx Silk	2,950	5,930	95-100g (3.3-3.5oz)
	20/2	Bombyx Silk	5,000	10,060	100g (3.5oz)
	20/2	Bombyx Silk on cones	5,000	10,060	approx. 200g (7oz) cone
	30/2	Bombyx Silk	7,500	15,090	100g (3.5oz)
	60/2	Bombyx Silk	15,000	30,170	100g (3.5oz)
	120/2	Bombyx Silk	30,000	60,350	100g (3.5oz)
	120/2	Bombyx Silk on cones	30,000	60,350	approx. 200g (7oz) cone

Tussah silkworms are protected and harvested in jungles and forests by indigenous peoples in Asia. These silkworms have rejected all attempts at total domestication. Tussah fibers are a little coarser than the cultivated Bombyx.

TUSSAH SILK
Tussah is the common name given to the Antherea silk producing caterpillars and their silk. These silkworms have a different diet from their Bombyx mori cousins. Whether they are reared in the tropics or temperate climate the leaves they eat contain tannin, the ingredient in tea that leaves a stain in your cup. The natural color of tussah silk is a warm honey beige.
Tussah silkworms are protected and harvested in jungles and forests by indigenous peoples in Asia. These silkworms have rejected all attempts at total domestication. Tussah fibers are a little coarser than the cultivated Bombyx.
 

Wild Silk			yd/lb	m/kg	skein weight
	20/2	Tussah Peduncle	4,100	8,248	100g (3.5oz)
	30/2	Tussah	6,100	12,270	100g (3.5oz)
	30/2	Muga	6,800	13,680	100g (3.5oz)

Blend Silk Yarn
As glorious as silk is, sometimes a marriage with other fibers is practical and enhances both fiber types.
These unions can be made in two ways: blending fibers in the carding process before it is spun into yarn or using a mixture of different fibers in a woven item.

Silk Blends			yd/lb	m/kg	skein weight
	30/2	45% Angora Rabbit 55% Silk	7,000	14,080	100g (3.5 oz)
	60/4	40% Bamboo 60% Silk	8,200	16,495	100g (3.5 oz)
	30/2	45% Tan Camel 55% Silk	7,400	14,880	100g (3.5 oz)
	30/2	45% White Camel 55% Silk	7,400	14,880	100g (3.5 oz)
	28/2	20% Cashmere 80% Silk	7,600	15,280	100g (3.5 oz)
	60/4	45% Cotton 55% Silk	8,000	16,075	65-90g (2.3-3.2oz)
	60/4	45% Ramie 55% Silk	7,500	15,090	100g (3.5 oz)
	60/4	40% Wool 60% Silk	6,400	12,860	200g (7oz)
	32/2	45% Yak 55% Silk	7,600	15,280	100g (3.5oz)