Obtaining a Quality Product by Eliminating Defective Factors in the Storage of Cocoon Raw Materials

Abstract

in this article, certain parts of the reared living  cocoon are damaged, during picking, bringing to the cocoon industry, pretreating, transporting and storing. Especially during long-term storage of cocoons, chemical changes of the cocoon and cocoon skin as a result of changes in the external environment, cooling in winter days and warming of the sun in summer months, the impact of various insects on the cocoon skin, and the pigment spots formed in the shell layer affect the physico-chemical properties of the threads in the defective parts of the cocoon causes the properties to change.

The purpose:  Our republic aims to obtain high-quality raw silk by modifying the factors that cause defects in the storage of cocoon raw materials, which are important for the textile industry, on the basis of surfactants from local secondary raw materials. It was recommended that SFM treatment in order to improve cocoon storage and spinning processes and to increase the amount of raw silk obtained from them.

Methods: Experiments were conducted in the main cocoon of Andijan district, Andijan region. As a result of the research, the waste of the "Biokimyo" plant (bardo and sive oil) and the surfactant synthesized in laboratory conditions were used. Before the initial processing, the cocoon was subjected to a technological process by modifying the cocoon with new chemical preparations Surface-active substance (SАS). There are hydroxyl and carboxyl groups close to the substances contained in the prepared Surface-active substance (SАS) cocoon. The environment of the substance is neutral and non-toxic, while the substance contains amino groups that are not eaten by crustacean beetles and insects. It does not have a negative impact on the health of workers working at the cocoon enterprise.

Results. By rationally using the production capacity of cocooning and sericulture enterprises and improving their stable operation, as well as improving the quality of cocoons by modifying surface activators, the silk yield can be increased from 28-29% to 42-45% and the amount of quality cocoons in the total dry cocoon volume from 81-88% to 95 -Up to 96% is achieved. Modification of the cocoon by reducing the factors that cause defects in its storage, increased cocoon absorption by 2.8 - 3.04%.

Conclusion: Based on the analysis of the obtained results, it is appropriate to use surface-activating substances obtained by synthesizing the waste of the local secondary raw material "Biokimyo" to eliminate the factors causing defects in the storage of cocoon raw materials.