Dr. Ferdouse Ara Dilruba
PSO(CC)
Chemistry Division
Dr. Elias Mollah
Professor
Jahangirnagar University, Savar
Md. Kamal Uddin
Ex-Director
BJRI
Dr. Latifa Binte Lutfar
Ex-CSO
Mechanical Processing Division;
BJRI
Md. abdus Samad
Ex-PSO
Textile Physics Division;
BJRI
A.K.M. Mahabubuzzaman
PSO(CC)
Mechanical Processing Division;
BJRI
Palm oil was chosen for the development of new jute batching emulsion process by eliminating mineral oil from the normal sequence of emulsion processing .From the study it is observed that the necessary physico-chemical properties such as specific gravity,acid value,iodine value and saponification value of the palm oil are favourable in comparison to JBO to make emulsion for batching jute fibre in the industry.Different recipes for the production of emulsion were standardized in the industrial scale.The standardized process involving palm oil-7%,nonidet-1.5% and water-91.50% shows around 264 hours stability at ambient temperature indicating smooth and safe use in jute industry.The recipes were used ti spin jute fibre in the jute mill machines.The yarns of the process show oil content 2.77%,count 8.058(lb/spy or 277.6tex) and quality ratio -93.04 percent. Finally the process requires less palm oil (7%) in comparison to JBO(20%). The process therefore,appears to be economical, modest and demonstrable in jute industry.
Emulsion,Palm oil,JBO,Spinning,Yarn,Oil content and Quality ratio.
Bangladesh Jute Research Institute.
a)Development of laboratory processes for preparing emulsions by using different vegetable oils.
b)Trial experiments in the spinning department to test the performance of emulsion with vegetable oil on jute processing.
c)Physical testing of the samples of jute yarns processed by vegetable oil emulsions and conventional jute batching oil emulsion for evaluation of comparative performance characteristics.
Bangladesh white jute fibres of pucca grade C(BWC) were collected from the Amin Jute Exporters, Narayangonj.Palm oil(Made in Malaysia) was purchased from the local market.The JBO and the Nonident were procured from the Padma Oil Company Ltd,Narayangonj for the study.The specific gravity,acid value,saponification value(Pearson,1970),iodine value(Hanus,1901),of the JBO and those of the palm oil were determined by the standard methods.Based on the optimum laboratory process results,four different emulsion processes were standardized in industrial emulsion tank by using palm oil,nonidet and water in different proportions.BWC(100kg/batch)were batched with the respective emulsion(20kg/batch),piled(48h), and then subjected to mechanical processing machine for carding,drawing and spinning to convert into yarns.The moisture regain(MR%) and bundle strength(mg/lb)of the BWC at the different stages of mechanical processing stages were determined.The loss of fibres as dust at the breaker card and finisher card were determined.The physical properties of the yarns relating to count,breaking load,breaking tenacity,extension,textile modulus,toughness and quality ratio were determined by Instron.Oil content and unsaponifiable matters were determined by standard method.The moisture regain (percent),twist per inch and the whiteness index of the yarns were determined by standard method(Reddy and Bhadury,1990).
Annual Technical Report,2003-2004(page 55-59),BJRI.
50,000/=
The work was undertaken to develop methods of batching jute fibres using palm oil in order to replace mineral oil from the normal sequence of emulsion processing.It has been possible to evolve methods of preparations of emulsions using palm oil for the processing of jute fibre. The physico-chemical properties such as specific gavity,acid value,iodine value and saponification value of the palm oil are favourable in comparison to JBO to make emulsion for batching jute fibre in the industry.The standardized process involving palm oil 7 percent, nonidet-1.5 percent and water-91.50 percent shows around 264 hours stability at ambient temperature.No difficulty is encountered in spinning the jute spinning frame by using palm oil emulsion.Dust wastes in the breaker and finisher cards for palm oil emulsion and JBO(mineral oil) emulsion are comparable.The yarns of the process show oil content 2.77 percent,count 8.058(lb/spy or 277.6 tex) and quality ratio-93.04%. Finally the process requires less palm oil (7 percent) in comparison to JBO(20%). So the process also appears economical.The process,therefore,appear to be modest and demonstrable in jute industry.
Report/Proceedings