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Not AvailableNamdha, a felted wool product is traditionally manufactured by the artisans and used as floor cov-ering. The problems associated with the namdhas during usage like fibre shedding, moth attack etc were analyzed. An attempt has been made to optimize the fibre blend for namdha making to reduce the fibre shedding. Similarly, a natural dye based process was developed for dyeing namdha for imparting moth resistanceNot Availabl

Feltability of coarse wool and its application as technical felt

395-399In this study, attempts have been made to utilize the coarse wool for the production of felt for technical textile applications. The feltability of coarse wool is found to be very low due to larger fibre diameter, less number of scales per cross-section as compared to fine wools. Hence, it is blended with different proportion of fine wool for preparing the felt with acceptable norms. Effort has also been made to partially remove the kemp fibre by passing the coarse wool through a woolen breaker card. The blend level of such processed coarse wool and fine wool is optimized in terms of feltability behavior. Technical felts of three different qualities have been prepared using optimized blend of coarse and fine wools and their performance properties like thermal insulation, resilience and abrasion resistance are evaluated. The results show that coarse wool in blends with medium fine wool in the ratio of 60:40 can be utilized for the preparation of technical felts. The developed felts can be used as thermal insulation and sound absorption panels, and for oil and chemical absorption applications. </span

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Not AvailableA study was conducted to measure wool fibre diameter and medullation using advanced computerised projection microscope with image analysis software and results were compared with conventional microscope method. The variations in fibre diameter measured by two methods were significant at 5% level. However, the standard deviation and coefficient of variation of fibre diameter was lower for computerized microscope system than conventional microscope method. The new system provides quicker, reproducible results and requires less manpower as compared to conventional system.ICAR-CSWR

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Not AvailableCashmere fiber has to be blended with either nylon or water-soluble Polyvinyl alcohol (PVA) as a carrier fiber for spinning on worsted spinning system. The spun yarn is used for producing high-end fashion fabrics. The nylon or PVA portion is then removed from the fabric by treating with hydrochloric acid or hot water. The PVA based process is considered eco-friendly as compared to nylon-based process. However, the whiteness and handle of such fabric is inferior as compared to cashmere fabric produced from nylon-based process. This study attempts to improve the whiteness and handle of the fabric by using dilute sulfuric acid in place of hot water to remove PVA. The fabric produced from newly developed process shows improvement in whiteness index (28%) and handle (20%) than fabric of hot water-based process. It exhibits similar handle like that of cashmere fabric produced from nylon-based process. The new process uses only mild concentration of acid and can be considered as eco-friendly as hot water-based process. The sulfuric acid facilitates easy dissolution of PVA from the fabric and prevents the redeposition of the same.Not Availabl

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Not AvailableIn this study, attempts have been made to utilize the coarse wool for the production of felt for technical textile applications. The feltability of coarse wool is found to be very low due to larger fibre diameter, less number of scales per cross-section as compared to fine wools. Hence, it is blended with different proportion of fine wool for preparing the felt with acceptable norms. Effort has also been made to partially remove the kemp fibre by passing the coarse wool through a woolen breaker card. The blend level of such processed coarse wool and fine wool is optimized in terms of feltability behavior. Technical felts of three different qualities have been prepared using optimized blend of coarse and fine wools and their performance properties like thermal insulation, resilience and abrasion resistance are evaluated. The results show that coarse wool in blends with medium fine wool in the ratio of 60:40 can be utilized for the preparation of technical felts. The developed felts can be used as thermal insulation and sound absorption panels, and for oil and chemical absorption applications.Not Availabl

Agroecological transformation for sustainable food systems : Insight on France-CGIAR research

This 26th dossier d’Agropolis is devoted to research and partnerships in agroecology. The French Commission for International Agricultural Research (CRAI) and Agropolis International, on behalf of CIRAD, INRAE and IRD and in partnership with CGIAR, has produced this new issue in the ‘Les dossiers d’Agropolis international’ series devoted to agroecology. This publication has been produced within the framework of the Action Plan signed by CGIAR and the French government on February 4th 2021 to strengthen French collaboration with CGIAR, where agroecology is highlighted as one of the three key priorities (alongside climate change, nutrition and food systems)