Project 17

Project Title: “Standardization of Application of Natural Dyes on Jute based Textile for Eco-friendly Jute Decorative and Diversified Products”
(JTM R&D Project no. 17)

1.0 Objectives:


  • Identification of suitable natural dyes for dyeing of jute based products;

  • Standardisation of methodologies of application of natural dyes on jute substrate to develop newer shades with acceptable fastness;

  • Pre-treatments and post treatments of jute to improve the dye ability and colour fastness;

  • Compatibility of different pairs of natural dyes to be applied in mixtures;

  • Training of manpower on developed standard methods for application of natural dyes on jute materials

  • To popularize use of eco-friendly natural dyes for jute diversified products.


2.0  Deliverables:


  • Standardisation of the processes for natural dyes from source origin (10 dyes) and production of different combined shades (90 shades).

  • Process standardisation and production of different combined shades from purified natural dyes procured from different companies (2 companies X 10 days X 9 shades each).

  • Bulk scale implementation/ field trial (maximum two) of the natural dyeing technology developed for Jute based   materials, in jute mills or in small scale / cottage jute dyers and process houses in association with AJHEEI/IJMA.

  • Dissemination of project outputs and Transfer of Technology for natural dyeing processes through Manpower or hands-on training/seminar/workshop/preparation of shade cards and publications of research papers/technical manuals (one) and preparation of shade card (100 shades) and cost analysis.


3.0 Achivements so far:


  1. Optimization for extraction of  Tesu (Palash flower), Manjistha (Indian Madder), Red Sandal wood and Jack Fruit Wood, Catechu, Pomegranate rind and Babool are completed & 63 different shades are developed..

  2. Identified suitable eco-friendly mordants for jute, like aluminium sulphate, ferrous sulphate and myrobolan etc. It is observed that a double mordanting system with 20% Harda followed by 20% Al2(SO4)3 premordanting is best suited for jute to be dyed with natural dyes.

  3. R & D work on optimization of dyeing process variables has been completed for seven source natural dyes, e.g., Red sandal wood, Jackfruit wood, Manjistha and Tesu, Catechu, Pomegranate rind and Babool for its subsequent application on differently mordanted and chemically pretreated jute fabrics.

  4. Total 126 shades of different colours have been developed for natural dyes obtained from M/s Alps Industries Ltd & M/s Sir Bio-Tech Industries Ltd.,.

  5. Technical Booklet and  Shade card is under process .

  6. Bulk Trial at Two Different places ( Asim Kar & Industries  & Reliance Jute Mills)

  7. Industrial Liaison work, dissemination  and Meetings with AJHEEI representative were held time to time at IJT.



[Prof. (Dr.) A K Samanta]

                                                                                              Professor in Textile Chemistry, DJFT, IJT, CU

                                                                                           PI and Nodal Officers of JTM R&D Projects, IJT