Textile Industry Management Need to Play Vital Roles in Order to Protect the Water-bodies from Severe Pollutions

Abstract In the textile industries, water is a very essential element. Fo

EFFECT OF YARN COUNT & STITCH LENGTH ON SHRINKAGE, GSM AND SPIRALITY OF SINGLE JERSY COTTON KNIT FABRIC

Single jersey cotton weft knitted fabrics tend to undergo a certain dimensional changes due to different yarn parameters and knitting parameters. The investigation was carried out to compare the effect of different yarn counts & stitch lengths on the spirality, GSM and shrinkage of knitted fabric. In this study the experimental results show that when yarn count is fixed, the increment of stitch length results decrement of spirality, increment of shrinkage and decrement of GSM. On the contrary, when stitch length is fixed, the increment of yarn count results increment of spirality, decrement of shrinkage and decrement of GSM. Some exceptions were also experienced

Detection of food-borne bacteria in ready to eat betel leaf sold at local markets in Mymensingh

Aim: The present study was undertaken to determine bacterial load as well as characterize bacterial flora of ready to eat (RTE) betel leaf sold at local markets in Mymensingh city. Materials and Methods: A total of 25 RTE betel leaf samples were collected from five local markets such as Kamal-Ranjit (KR) market, Shesh more, Kewatkhali, Jobber more, and Ganginar par. Results: Total viable count of bacteria in betel leaf (log10 mean colony forming unit±standard deviation/ml) was 7.58±0.04 for KR market, 7.72±0.06 for Shesh more, 7.62±0.04 for Kewatkhali, 7.40±0.03 for Jobber more, and 7.60±0.06 for Ganginar par. A total of 98 bacterial isolates belong to five genera (Escherichia coli, Salmonella spp., Vibrio spp., Bacillus spp., and Staphylococcus spp.) were identified. The prevalence of E. coli was 17.34%, Salmonella spp. was 25.51%, Vibrio spp. was 19.39%, Bacillus spp. was 18.37%, and Staphylococcus spp. was 19.39%. Antibiotic sensitivity test showed that all isolates were sensitive to two antibiotics such as ciprofloxacin and gentamicin. Four isolates (E. coli, Salmonella spp., Vibrio spp., and Staphylococcus spp.) were resistant to two antibiotics (ampicillin and cephalexin). Antibiogram profile of bacterial isolates of betel leaf suggests that they were multidrug resistance. Conclusion: Data of this study indicate that betel leaf sold at local market harbors multidrug resistance food-borne bacteria which might cause public health hazards if these antibiotic resistant transfer to human through food chain

Mapping environmental sustainability of knitted textile production facilities

To achieve the Sustainable Development Goal (SDG) 12, it is important to investigate the sustainability of both products and manufacturing facilities to identify the areas to improve. The number of published research works on measuring the eco-indices of fashion products are plenty, while ignoring the measurement of the eco-indices of fashion production facilities. Therefore, this study investigated the environmental sustainability of knit-dyeing facilities linked to fast fashion production in Bangladesh. The Facility Environment Module (FEM) of the Higg index tool 2.0 from Sustainable Apparel Coalition (SAC) was applied to detect the sustainability scores. Multiple case study approach was adopted for this study. Seven tools of FEM related to the environmental management system, energy use, GHG emissions, water use, wastewater, air emissions, waste management, and chemical management were applied to collect data. Scores of these categories were calculated using the FEM tool. Qualitative data was collected through short interviews using a questionnaire. A varying range of scores (from low to high) was found for all the categories. The scores reveal the technical, managerial, and resource limitations on practicing sustainable production approaches in knit-textiles facilities. The overall finding urges all stakeholders, including manufacturers, researchers, buyers, and policymakers, to pay serious attention and reformulate strategies and resources to reduce the negative impact of knit manufacturing on the environment

An overview on syntactic foam core and paper skin sandwich composites as potential building materials

[Abstract]: Novel sandwich composites made of syntactic foam core and paper skin were overviewed as potential building materials. Interface bonding between core and skin were controlled by varying starch content. Two different microsphere size groups were employed for syntactic foam core manufacturing based on the pre-mould processing method. Properties of skin paper with starch adhesive on were found to be affected by drying time of starch. Mechanical behaviour of manufactured composites in relation with properties of constituents was studied. Skin contributed to increase up to 40% in estimated flexural strength over syntactic foams, depending on starch content in adhesive between core and skin. Smaller microsphere size group for core was found to be advantageous in strengthening sandwich composites for a given starch content in adhesive. Failure process of sandwich composites was discussed in relation with load-deflection curves. Core cracking was detected to be the first event in sandwich composite failure sequence

An investigation of work-related risk factors among sewing machine operators

Working extended periods of time in front of sewing machines may cause discomfort to the operators of sewing machines. Sewing machine operators sit for extended periods of time and use their hands to control, handle, or feel objects and tools in repetitive processes which makes them vulnerable to musculoskeletal symptoms. Therefore, this study aims to identify the prevalence of musculoskeletal symptoms among sewing machine operators working in the apparel industry in Bangladesh while considering job characteristics, productivity, job satisfaction, workstation design, and working environment. The results showed that working in front of the sewing machines for a long period of time might cause musculoskeletal problems for the sewing machine operators in Bangladesh which is consistent with previous studies. Further, the environment of the sewing machine rooms, job characteristics, and workstation design were not satisfactory in some cases and might impact participants’ health

Mechanical and thermal properties of jute fibre reinforced composites

Composite materials based on natural fibres, especially jute, have the potential to be used in engineering load bearing applications. Inherent flaws within natural fibres in terms of the presence of hydrophilic hydroxyl groups in their structure absorb atmospheric moisture which reduces the compatibility of these fibres with polymer matrices. Fibre surface modifications using chemical treatments have the potential to improve fibre-matrix compatibility. In this study, jute fibres were treated with different concentration of alkali (NaOH) solutions. The changes in fibre structure after treatment were investigated by Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA). Treated fibres were reinforced in polyester matrix to prepare composites byusing hand lay-up method. The compatibility between fibre and matrix were analysed through mechanical property testing of the composites. Mechanical properties such as flexural and compressive strength, modulus and strain at break of composites were studied and compared. Best results were observed on compressive and flexural properties respectively for 5% and 7% NaOH treated samples. Thermal stability was also enhanced for the treated fibres. In general, thermal and mechanical properties of the treated fibres and their composites were superior to the untreated fibres

Textile industry in Bangladesh and challenges of growth

The importance of the textile industry in the economy of Bangladesh is very high. The garments manufacturing sector earned $19 billion in the year to June 2012, one of the impoverished nation's biggest industries. Currently this industry is facing great challenges in its growth rate. The major reasons for these challenges can be the global recession, unfavorable trade policies, internal security concerns, the high cost of production due to increase in the energy costs, different safety issues specially fire, etc. Depreciation of Bangladeshi Taka that significantly raised the cost of imported inputs, rise in inflation rate, and high cost of financing has also effected seriously the growth in the textile industry. As a result neither the buyers are able to visit frequently Bangladesh nor are the exporters able to travel abroad for effectively marketing their products. With an in-depth investigation it was found that the Bangladesh textile industry can be brought on top winning track if government and others individuals takes serious actions in removing or normalizing the above mentioned hurdles. Additionally, the government should provide subsidy to the textile industry, minimize the internal dispute among the exporters, withdraw the withholding and sales taxes etc. Purchasing new machinery or enhancing the quality of the existing machinery and introducing new technology can also be very useful in increasing the research and development (R and D) related activities that in the modern era are very important for increasing the industrial growth of a country