Dr. Latifa Binte Lutfar
Principal Scientific Officer
Mechanical Processing Division, BJRI, Manik Mia Avenue, Dhaka-1207.
Md. Khairul Kabir
Chief Scientific Officer
Mechanical Processing Division, BJRI, Manik Mia Avenue, Dhaka-1207.
Md. Kamal Uddin
Principal Scientific Officer
Pilot Plant & Process Development Division,BJRI, Manik Mia Avenue, Dhaka-1207.
Mrs Najmina Chowdhury
Scientific Officer
Mechanical Processing Division, BJRI, Manik Mia Avenue, Dhaka-1207.
Md. Moslem Uddin
Scientific Officer
Textile Physics Division, BJRI, Manik Mia Avenue, Dhaka-1207.
In order to accomplish desired properties and achieved improved quality from blending jute with other textile fibers, selection and identification of suitable man made or textile fiber of compatible dimension was first made. Thereafter, an effective and most suitable blending process has been developed. From the assessment of the quality and physic-mechanical properties of the resultant yarns and the nature of blending, Lattice Blending Technique was found to be most suitable blend method. Thereafter, this technique of blending has been optimized from a number of trial with varying machine factors, processing parameters etc. with the above mentioned blend method, jute fiber was blend with three different man-made fibers of different dimensions each in the ratio of 90/10, 80/20 and 70/30. Then yarns of nominal count 5 and 7.5 lb.spy have been processed out of the above blends. Physico-mechanical properties, dye-ability and colour-fastness of the blended yarn, chemically processed and dyed were also studied. Finally, a range of diversified jute blended products out of above grey, bleached and dyed blended yarns manufactured. It has been possible to blend jute successfully with the man-made fibers in the conventional jute spinning system.
Compatibility, blended yarn, physico-mechanical, fabrics,
a)To identify textile fibers compatible to jute in blending.
b)To devise processes and technologies associated with blending to maximize the use of jute in the fields of textiles.
c)To develop techniques to manufacture fancy jute products from jute blends for diversified uses and utilization as import substitutes.
First of all, BWB and BTB jute fiber were processed. After blending man-made fiber (acrylic and polyester) with jute were carried out in two different methods. In method A’ blending was attained by spreading the component fibers in desired proportions by weight over the breaker card lattice. In method ‘B’ jute and man-made fibers were laid on the floor in alternate layer in desired proportion by weight. Then tufts of layer fibers were fed into breaker card lattice. Altogether a total of 84 blend trials were carried out from which about 60 different yarns in two different counts were successfully spun. The physico-mechanical (actual count, tex, twist, breaking load, tenacity, modulus, elongation, toughness, quality ratio) and spinning properties of the yarns and blended yarns were tested. Raw and man-made fibers were characterized microscopically and fineness were measure using air flow and gravimetric method. In order to manufacture diversified products with jute blended yarns were chemically processed, dyed and softened. Jute-man-made fabrics were prepared from that yarns and printed with pigment dyes using different screen for different color on a printing table for making a suitable design.
BARC Report
15.12 lakh
: From the fiber characteristics data it can be concluded that the variation of the fibers in respect of fineness, length and also in cross sectional shapes are evident. From the study and analysis of the tensile properties and quality of jute acrylic (80/20) yarns, blending process ‘A’ is better that process ‘B’. In case of jute acrylic blends inclusion of 10% acrylic fiber caused deterioration in the tensile properties more in BTB than BWB jute. The three different man made fibers used in blending jute were found to behave differently during processing. Jute –rayon blends were easily spinnable, jute polyester blends tended to form more neps in the sliver as well as yarns. Jute acrylic formed bulk and need very careful spinning with modified Apron draft spinning machine especially for low count. between the two different grades of jute BWB and BTB, most of the yarn blended with BTB jute resulted in the lower tensile properties than those of the blended with BWB jute. Both jute /rayon and jute polyester yarns were used for giving trial in the Handloom. Jute /acrylic yarns were found most suitable in kintting yarn substitute. Higher percentage of acrylic content in blends resulted in softer, less hairy and better hand and feel products. Finally this project has succeeded in creating a tremendous enthusiasm among the weavers, dyers, printers, Handicraft producers, Fashion designer and some NGO.
Journal, Report/Proceedings