Project 10



1.0 Objectives:


·    Identification and development of suitable methods of producing fire retardant jute based fabrics either by blending jute with fire retardant fibres and/or by imparting suitable fire retardant chemical finishes;

·    Optimisation of suitable chemical formulations for production of non-durable and durable (wash-fast) flame retardant finish of jute based fabrics;

·   Determination of the flame retardancy and other thermal characteristics of blended and/or chemically finished fire-retardant jute fabrics, for end use performance as per existing National & International standards;

·    Standardization of cost viable fire retardant formulations for imparting semi-durable and durable fire retardant finishes to jute-based  fabrics:

·    Training of  manpower (students, industry personnel and researchers) in this field;

·    Bulk trial and technology transfer in industry to develop usable products from such fire-retardant finished jute fabrics and their required testing methods and standardisation.


2.0 Deliverables:


·      Development of newer technology/ formulation for non-durable (leachable), semi- durable and durable fire retardant finishes(two such formulations for each type) for jute based materials

·      At least two formulations of durable fire retardant finish on jute based materials with the functional properties targeted as follows:

Test parameters

Target parameters as per terms of reference of  JTM-R&D-JMDC Project No. 10

LOI value


Char-length (cm)

Between 1-2 cm

Flame spread time

Maximum flame spread time be 100 seconds for burning 2 cm

Burning time

Preferably no burning or   burning of 1-2cm should take at least 60 seconds or more.

Afterglow time

Preferably  no afterglow or  afterglow below  5 seconds .


·  Bulk trial, dissemination and transfer of technology for the processes and technology developed (in one or two units) and publications of research papers/technical manuals and manpower training and demonstration of testing methods for fire-retardant finished jute products.


3.0 Achievements so far:


 Following are the different fire-retardant formulation  that have been tried


·      Borax-boric acid

·      Urea and Ortho-Phosphoric Acid,

·      Tetra sodium Pyrophosphate,

·      Sodium Per-borate etc.

·      Following are  some improved fire retardant formulations using Nitrogen and Phosphorous  Compounds in combination (to get N-P Synergy),

·      Urea plus Di ammonium Phosphate (DAP),

·      Thio-urea plus DAP and

·      Dicyandiamide plus DAP

·      For development of some wash fast system of eco-friendly fire-retardant treatment, i R&D trial have been done with

·      Phosphorylation of polyols (PVA/PEG etc) and their subsequent application on jute fabric.

·      Another one new improved fire retardant formulations using Nitrogen-Sulfur based fire retardants in combination (to get N-S Synergy), using

·      Ammonium sulfamate/ sulfamic acid with urea or other nitrogen compound  has been initiated

·      FTIR study is in progress for the all the formulations optimized in the 1st and 2nd year of the projects  to understand the nature of chemical reactions of FR-chemicals with jute.

·       A bulk scale trial was arranged on 28th and 29th May 2011 in order to evaluate/ try out the laboratory recipes / findings in actual mill conditions and subsequently to rectify / optimise for achieving the targeted Finish.




[Prof. (Dr.) A K Samanta]

                                                                                Professor in Textile Chemistry, DJFT, IJT, CU

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