Dupioni silk yarns and its products are increasingly popular on the international market in recent years. However, reeling technology of dupioni silk yarns relatively fell behind, the features of dupioni silk was not obvious, the degree of robotization was relatively lower, the quality of product was cheesy. So, the mechanism of producing feature of dupioni silk yarns required analysis, the reeling technology of dupioni silk yarns need to research.
We are aware that the volume of twin cocoon is relatively big and skimble-scamble, the layer of twin cocoon is thick and loose, easily contributed to uneven of absorbing water among twin cocoon when permeated to it. Whereas enhanced the pressure of vacuum pump or usage of chemical can reduced the discrepancy, and improved the temperature of water can decrease the broken of silk when reeling silk.
Through trial of reeling silk from a cocoon and observation of the process, established model of reeling silk from twin cocoon. By experiment and analysis, we know that snarly two cocoon silk was simultaneity draw up and disorderly separate silk from cocoon bring on the feature of dupioni silk yarns.
Again, for the sake of the methods of controlling amount of feature of dupioni silk yarns, put forward a new method that adding fresh twin cocoon to raw cocoon of reeling dupioni silk yarns, and make use of orthogonal experimental to study the impact about adding fresh twin cocoon of ratio, times of process of boiling cocoon, the usage of chemical additives and other factors to improve the amount features of dupioni silk yarns. Achieved notable result shows that the times of process of boiling cocoon and the use of chemical additives can improve amount of features of dupioni silk yarns, And confirmed that this method can improve the features of dupioni silk yarns.
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