Blended yams

The main applications are piece dyeing, which is important for the dyeing of the CEL component of PES-CEL blended fabrics, yarn dyeing, and dyeing of flock, card, sliver, etc., for blended yams with wool and man-made fibers. 

Polyester/wool blends are very popular, the most common blend ratios are 55 45 and 70 30 polyester wool. Polyester rich blends are normally constructed from a texturised polyester fibre warp and 55 45 polyester wool weft yams. The 20 80 polyester/wool is woven from 55 45 warp and a pure weft yam. Worsted polyester/wool blend yams may contain 2.5 - 3% solvent extractable oil, compared with 3.5- 5% for similar all wool yams. The oils have much greater affinity for polyester fibre than wool and after normal piece scouring, the blends contain residual oil content of 0.6 - 1.2% compared with 0.3% for wool. Oxidation of combing oil is influenced by exposure to light which should be avoided before scouring. Addition of surfactant to combing oil improves the scourability of the blend fabric [75]. 

Blended yams of acrylic/cellulosic fibres are prepared on the woollen system. Yams prepared in the cotton system of spinning may be scoured at 60 C (30 C for... 

Ruppenicker GF, Harper RJ, Sawhney APS, Robert KQ. Comparison of cotton/polyester core and staple blend yams and fabrics. Textil Res J 1989 59 12-7. 

Table 1 shows that the yam made from 100% bamboo fibre possesses higher tenacity and much higher elongation % when compared to the yams made from bamboo / cotton blends. But it is found to be highly uneven and having very high level of imperfections when compared to blended yams. 

Chen X (2007) Development of flax and natural protein fiber blend yam. Shanghai Text Sci Tech... 

Chun D, Eoulk J, McAlister D (2010) Antibacterial properties of flax. BioResources 5(l) 244-258 Cierpucha W, Kozlowski R, Mankowski J, Wasko J, Mankowski T (2004) Applicability of flax and hemp as raw materials for production of cottrai-like fibres and blended yams in Poland. 

The various blended yams were knitted into 1x1 rib fabrics utilizing a Dubied... 

Even Remora, who were hailed as the future of the UK yam manufacturing industry, floundered by selecting the wrong market. While it seemed likely that here could be a market for wool and wool/acryhc blend yams, the wool market is probably the most difficult to introduce change, with purchasers of wool garments being typically conservative and not ready to accept changes. Added to this problem is the fact that wool is a fairly stiff... 

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