Hydrogen Peroxide Bleaching of Cationized Cotton Fabric

Fu, Sha; Farrell, Matthew J.; Ankeny, Mary; Turner, Edwin T.; Rizk, Victoria T.

doi:10.14504/ajr.6.5.4

Cited by 8 publications

(3 citation statements)

References 17 publications

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“…These compounds have drawbacks that limit their applicability, such as the fact that high concentrations of hydrogen peroxide (H 2 O 2 ) or continuous exposure to it can cause damage to fabrics, thereby lowering both their strength and durability [ 66 ]. Besides the negative impact of H 2 O 2 and NaCIO on humans and the environment, it can cause color fading in cotton fabrics [ 67 ]. NaCIO has the potential to induce irritation of the skin and eyes, along with the capacity to harm gastrointestinal and respiratory tissues [ 68 ].…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Optimization, and Characterization of Cellulase Enzyme Obtained from Thermotolerant Bacillus subtilis F3: An Insight into Cotton Fabric Polishing Activity

Fouda,

Alshallash,

Atta

et al. 2023

J. Microbiol. Biotechnol.

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The efficacy of 40 bacterial isolates obtained from hot spring water samples to produce cellulase enzymes was investigated. As a result, the strain Bacillus subtilis F3, which was identified using traditional and molecular methods, was selected as the most potent for cellulase production. Optimization was carried out using one-factor-at-a-time (OFAT) and BOX-Behnken Design to detect the best conditions for the highest cellulase activity. This was accomplished after an incubation period of 24 h at 45°C and pH 8, with an inoculum size of 1% (v/v), 5 g/l of peptone as nitrogen source, and 7.5 g/l of CMC. Moreover, the best concentration of ammonium sulfate for cellulase enzyme precipitation was 60% followed by purification using a dialysis bag and Sephadex G-100 column chromatography to collect the purified enzyme. The purified cellulase enzyme was characterized by 5.39-fold enrichment, with a specific activity of 54.20 U/mg and a molecular weight of 439 kDa. There were 15 amino acids involved in the purified cellulase, with high concentrations of 160 and 100 mg/l for glycine and proline respectively. The highest stability and activity of the purified cellulase was attained at pH 7 and 50°C in the presence of 150 ppm of CaCl 2 , NaCl, and ZnO metal ions. Finally, the biopolishing activity of the cellulase enzyme, as indicated by weight loss percentages of the cotton fabric, was dependent on concentration and treatment time. Overall, the thermotolerant B. subtilis F3 strain has the potential to provide highly stable and highly active cellulase enzyme for use in biopolishing of cotton fabrics.

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Section: Resultsmentioning

confidence: 99%

Synthesis, Optimization, and Characterization of Cellulase Enzyme Obtained from Thermotolerant Bacillus subtilis F3: An Insight into Cotton Fabric Polishing Activity

Fouda,

Alshallash,

Atta

et al. 2023

J. Microbiol. Biotechnol.

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“…pada kondisi NaOH tetap peningkatan konsentrasi H2O2 menyebabkan kekuatan sobek lusi maupun pakan semakin besar seperti terlihat pada hasil pengujian. Dan akan terjadinya pengurangan derajat polimerisasi serat selulosa dan hilangnya kanji pada bahan karena menyebabkan kain semakin rapuh(Sha Fu 2022)…”

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The Effect Of H2O2 On The Bleaching-Scouring Simultaneous Process Of 100% Cotton Fabric With Pad - Batch System

Luciana,

Salamah

2023

Sainteks

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Simultaneous processes are processes that are implemented simultaneously where the process and substances used do not interfere with each other, the purpose of each process of preparation for refinement is implemented to remove starch on the warp threads in the form of natural impurities, external impurities and natural pigments in a short time and satisfactory result. The purpose of this research is to improve the quality of the results of the scouring process, and bleaching simultaneously in the pad-batch system. This research method was carried out by varying the concentration of H2O2: 20 g/l, 30 ml/l and 40 g/l using a 70% squeeze effect and a batching time of 12 hours. After the experiments were carried out, tests were implemented on starch content, absorption capacity - capillary test, degree of whiteness, tear strength test by tongue method and aging test (ΔE). From the experimental and test results, the optimum conditions showed that the higher the concentration of H2O2 up to a concentration of 40g/l with the same batching time for 12 hours was obtained at a concentration of H2O2 of 30 g/l where in these conditions starch could be removed from the material properly. Absorption power in 1 minute absorbs color as high as 4 cm. The white degree test results are 61.66%. The tear strength in the warp direction was 9.675 N and the tear strength in the weft direction was 7.475 N and the (ΔE) color difference value of L* (Lightness) or the brightness level was 73.74 for light colors; medium color 62.68; and dark color 20.49

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“…Химический процесс отбеливания полотна является одной из важных стадий текстильного производства [1,2]. Процесс в целом можно разделить на две части: физико-химические процессы, протекающие в ванне отбеливания, и электромеханические процессы перемещения полотна ткани [3].…”

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The Mathematical Simulation of the Cloth Movement System in the Process of Fabric Bleaching

Zaitsev¹,

Golovushkin²,

Grimenitsky³

et al. 2021

ChemChemTech

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Работа рассматривает вопросы разработки математической модели электромеханического процесса намотки -размотки полотна. Примером служит технологический процесс отбеливания ткани. Процедура намотки -размотки проводится с применением механизмов, приводимых в движение электродвигателями. Электромеханические процессы подобного рода широко распространены в промышленности и потребляют большое количество электроэнергии, влияя на экологию. Эффективное управление такого рода процессами позволяет снизить потребление электроэнергии и повысить качество производимой продукции. Основная сложность управления такими процессами -необходимость синхронизации работы двух и более двигателей. Для создания системы управления требуется, во-первых, исследовать процесс намотки -размотки полотна. Одним из методов исследования является имитационное моделирование. Для проведения процедуры численного эксперимента создается математическая модель. В статье описана процедура математического моделирования процессов движения валов с полотном ткани и их взаимодействие. Рассмотрены локальные системы управления асинхронными электродвигателями и системы передачи моментов вращения. Математические модели отдельных подсистем сведены в общую систему уравнений в пространстве состояний. Полученная система уравнений позволяет рассматривать процесс в целом. Кроме этого, математическая модель в пространстве состояний позволяет использовать современные методы синтеза законов управления. Также этот вид математического описания легко интерпретировать в виде блок-диаграмм визуальных языков программирования систем компьютерной математики. Язык функциональных блок-диаграмм входит в набор языков стандарта международной электротехнической комиссии всемирной торговой организации и используется для программирования современных контроллеров. Следующий этап исследования -создание имитационной модели и проведение численных экспериментов. Эти эксперименты позволят провести структурный синтез системы управления.

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Hydrogen Peroxide Bleaching of Cationized Cotton Fabric

Cited by 8 publications

References 17 publications

Synthesis, Optimization, and Characterization of Cellulase Enzyme Obtained from Thermotolerant Bacillus subtilis F3: An Insight into Cotton Fabric Polishing Activity

Synthesis, Optimization, and Characterization of Cellulase Enzyme Obtained from Thermotolerant Bacillus subtilis F3: An Insight into Cotton Fabric Polishing Activity

The Effect Of H2O2 On The Bleaching-Scouring Simultaneous Process Of 100% Cotton Fabric With Pad - Batch System

The Mathematical Simulation of the Cloth Movement System in the Process of Fabric Bleaching

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