Cotton textiles are dyed mostly with reactive dyes because they produce a wide range of bright colors with excellent colour fastness to washing. However, the reactive dyeing requires considerable quantities of inorganic salt and alkali for efficient utilization and application of dyes. These inorganic salts when drained to effluent generate huge amounts of total dissolved solids leading to serious environmental pollution. Considerable remedies are being measured within the textile processing industry to reduce the effluent pollution and to fulfill the environmental regulations. This work is a part of such efforts and presents results where cotton fabrics pretreated with chitosan nanoparticles and reactive dyeing carried out without salt. In this work, chitosan nanoparticle was used for developing salt free eco-friendly reactive dyeing. The effect of chitosan nanoparticles in color strength (K/S value), color difference, color fastness to crocking and washing of the cotton fabric was investigated. The cotton fabric treated with 0.5 (w/v) chitosan nanoparticles had higher K/S values.
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Aula que trata da estrutura básica do átomo fazendo uma breve viagem sobre os modelos mais famosos até chegarmos ao que é aceito hoje. Matéria para Ensino fundamental II, na disciplina de Ciências (Química 9º ano).
Cotton textiles are dyed mostly with reactive dyes because they produce a wide range of bright colors with excellent colour fastness to washing. However, the reactive dyeing requires considerable quantities of inorganic salt and alkali for efficient utilization and application of dyes. These inorganic salts when drained to effluent generate huge amounts of total dissolved solids leading to serious environmental pollution. Considerable remedies are being measured within the textile processing industry to reduce the effluent pollution and to fulfill the environmental regulations. This work is a part of such efforts and presents results where cotton fabrics pretreated with chitosan nanoparticles and reactive dyeing carried out without salt. In this work, chitosan nanoparticle was used for developing salt free eco-friendly reactive dyeing. The effect of chitosan nanoparticles in color strength (K/S value), color difference, color fastness to crocking and washing of the cotton fabric was investigated. The cotton fabric treated with 0.5 (w/v) chitosan nanoparticles had higher K/S values.
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Aula que trata da estrutura básica do átomo fazendo uma breve viagem sobre os modelos mais famosos até chegarmos ao que é aceito hoje. Matéria para Ensino fundamental II, na disciplina de Ciências (Química 9º ano).
Hadj Ounis's most notable work is his sculpture titled "Metamorphosis." This piece showcases Ounis's mastery of form and texture, as he seamlessly combines metal and wood to create a dynamic and visually striking composition. The juxtaposition of the two materials creates a sense of tension and harmony, inviting viewers to contemplate the relationship between nature and industry.
Hadj Ounis's most notable work is his sculpture titled "Metamorphosis." This piece showcases Ounis's mastery of form and texture, as he seamlessly combines metal and wood to create a dynamic and visually striking composition. The juxtaposition of the two materials creates a sense of tension and harmony, inviting viewers to contemplate the relationship between nature and industry.
This tutorial offers a step-by-step guide on how to effectively use Pinterest. It covers the basics such as account creation and navigation, as well as advanced techniques including creating eye-catching pins and optimizing your profile. The tutorial also explores collaboration and networking on the platform. With visual illustrations and clear instructions, this tutorial will equip you with the skills to navigate Pinterest confidently and achieve your goals.
Explore the multifaceted world of Muntadher Saleh, an Iraqi polymath renowned for his expertise in visual art, writing, design, and pharmacy. This SlideShare delves into his innovative contributions across various disciplines, showcasing his unique ability to blend traditional themes with modern aesthetics. Learn about his impactful artworks, thought-provoking literary pieces, and his vision as a Neo-Pop artist dedicated to raising awareness about Iraq's cultural heritage. Discover why Muntadher Saleh is celebrated as "The Last Polymath" and how his multidisciplinary talents continue to inspire and influence.
Fashionista Chic Couture Maze & Coloring Adventures is a coloring and activity book filled with many maze games and coloring activities designed to delight and engage young fashion enthusiasts. Each page offers a unique blend of fashion-themed mazes and stylish illustrations to color, inspiring creativity and problem-solving skills in children.