Tag Archives: Sumon Mazumder

Global Impacts of Genetically Modified Cotton Cultivation in Textile Sector, Bangladesh Textile Today

Sumon Mazumder,
Textile Engineering
Daffodil International University

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follow link The contribution of cotton is more than just a fibre for textiles. Cotton fibres used in textiles around the world come from the seed hairs of a plant known as gossypium hirsutum. Cotton, which is cultivated in different countries of the world, develops in closed, green capsules known as bolls that burst open when ripe, revealing the white, fluffy fibres. Genetically modified (GM) cotton has become widespread, covering a total of 15 million hectares in 2007, or 43 percent of the world’s cotton. Most GM cotton is grown in India and the US, but it can also be found in China, Argentina, South Africa, Australia, Mexico, and Columbia. The GM cultivars grown today are resistant to herbicides or insect pests. More than half (68%) of China’s cotton production is genetically modified to produce a substance (Bt toxin) that protects it against insect pests. A few types of caterpillars are especially problematic because they bore into cotton bolls reducing yield and compromising quality. Pesticide applications for repeated times are necessary to protect the cotton bolls from these insects. GM cotton has now enabled Chinese farmers to considerably reduce pesticide use.

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Importance of Fixing Agent on the Color Fastness of Reactive Dyestuffs Originated from Various Dye Manufacturers

Sumon Mazumder,
Daffodil International University
Md. Mahbubul Haque
Daffodil International University

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https://www.apprhs.org/heartbeat/ed/viagra-spokespeople.html Reactive dyes are the dominant choice of colorants to produce colouring effect on cotton goods for some technical advantages. Reactive dyes have a great usage due to having a wide color range and a greater color fastness rating. Most of the wet processing industries are using reactive dyes on textiles for coloration purposes. Reactive dyes are the only class of dyes which make co-valent bond with the fibre molecules, so the colour fastness characteristics become greater. After treatment is carried out in reactive dyeing to remove the weakly bonded unfix dyes from the fibre substrate. However, fixing agent may be induced after reactive dyeing to improve the stability of previously formed co-valent bond between dye and fibre molecules. The aim of this paper is to study the effects of fixing agent on cotton fabric dyed with reactive dye. For the determination of these effects, Colour fastness properties and colour difference values have been measured in case of dyed cotton material before and after using fixing agent. 

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