Ozone treatment of Angora rabbit fiber

Perıncek, Seher; Bahtiyari, M. İbrahim; Körlü, Ayşegül; Duran, Kerim

doi:10.1016/j.jclepro.2008.01.005

Cited by 57 publications

(46 citation statements)

References 10 publications

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“…This is because methanol is a hydroxyl radical scavenger [9] and prevents cellulose degradation in cotton fabric [9] as brought about by ozone due to its strong oxidation potential and its reaction chemistry which causes it to split to nascent oxygen atom rapidly generating free radicals like OH, HO 2 , HO 3 , HO 4 , RO, etc. [2] by interacting with all the intervening and the intermediate organic compounds as well as water [2,11,12], by increasing ozone selectivity [9], by chelating with the free radicals, inhibiting cellulose degradation by reducing its availability to ozone [13].…”

Section: Resultsmentioning

confidence: 99%

“…Ozone has been proved to give high bleaching efficiency in all these contexts; not only for cotton [1][2][3] but for other types of natural fabric; such as Angora rabbit fiber [4], jute [5] wool, silk, nylon and even for paper pulp [6]. Ozone, rather, has long been in use for pulp bleaching; earlier, in Totally Chlorine Free (TCF) paper pulp production due to the benefits of improved selectivity, brightness, production economy and stability, and after reduction in market value of the TCF pulp, in Elemental Chlorine Free (ECF) sequences [6].…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Various Additives in Cotton Bleaching Efficiency

Nazir¹,

Arooj²,

Kashif³

2017

J Environ Anal Chem

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Bleaching efficiency is evaluated by the degree of whiteness, absorbency, copper number, tendering factor, strength or strength loss, dye uptake, alkali solubility, degree of polymerization and chemical transformation. Recent lab-scale studies have proven ozone to bleach with efficiency comparable to the conventional bleaching agents and hydrogen peroxide at faster rates without requiring heating or any other supportive treatment with less energy and water. Ozone alone, however, showed poor efficiency in pilot-scale determinations, suggesting the use of certain additives to support it in performing its bleaching action. This research was conducted to compare the influence of methanol, isopropanol, oxalic acid and sodium borohydride on improvement in the bleaching performance of ozone in terms of whiteness, absorbency and burst strength. The additives brought an overall improvement in whiteness, absorbency and burst strength of cotton but had significant difference in their performance, as assessed from the pvalues yielded by one-way ANOVA applied on SPSS 20. Methanol outclassed other three in its performance bringing the highest increase in whiteness and burst strength and the highest reduction in fabric absorbency.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of Various Additives in Cotton Bleaching Efficiency

Nazir¹,

Arooj²,

Kashif³

2017

J Environ Anal Chem

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“…Aynı zamanda kalın lifler deride kaşıntı hissi verebilirler. [12] Angora liflerinin incelik değerleri iyi kaşmir liflerine yakın değerdedir (14-16 µm) [23]. Lüks liflerden incelik olarak en iyi olanı, misk öküzünün kıllarıdır.…”

Section: A2 Lüks Li̇fleri̇n İnceli̇k öZelli̇kleri̇ne Göre Farkliliklariunclassified

“…Angora liflerinin yoğunluğunun düşük olmasından dolayı (1.15-1.18 g/cm 3 ) bu liflerden yapılma kumaşlar çok hafiftirler. Aynı zamanda sıcak tutan kumaşlar elde edilir [23]. Angora lifleri genelde yün ile karışım halinde piyasada bulunur [3].…”

Section: A8 Lüks Li̇fleri̇n Di̇ğer Fi̇zi̇ksel Farkliliklariunclassified

Kıl Kökenli Lüks Liflerin Ayırt Etme Yöntemleri

Yüce¹

2015

ISSCS

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ÖzetDünyada bitkisel ve hayvansal kaynaklı olmak üzere her yıl 35 milyon ton doğal lif üretilmektedir. Bitkisel kaynaklı doğal lifler pamuk, keten, kenevir, jüt, rami, sisal ve Hindistan cevizi lifi iken, hayvansal kökenliler, yün, ipek, tiftik, kaşmir, Ankara tavşanı yünü, keçi kılı, vikunya v.b. lifleridir. Günümüzde yaklaşık olarak 9 farklı hayvan türünden, ticari amaçlı lif elde edilmektedir.Hammadde kaynaklarının oldukça az olması, spesifik bölgelerde yetişmesi, üretim miktarının az olması, yumuşak, parlak ve şık kumaşlar üretilmeleri nedeniyle; tiftik, kaşmir, angora, alpaka, deve tüyü ve vikunya gibi lifler oldukça pahalıdır ve çok da çekici özelliklere sahiptir. Tüm bu sebeplerden dolayı bu liflere lüks lifler adı verilmektedir. Lüks lifler temelde protein esaslı olmasına rağmen her biri kendi karakteristik özelliklerini gösterir.Bu çalışmada amaçlanan, lüks liflerin fiziksel ve kimyasal olarak ayırt edilme yöntemlerinin incelenmesidir. Bu ayrımı yaparken liflerin morfolojisi, incelik değerleri, sıcak tutma özellikleri, kimyasallara karşı dayanımları gibi karakteristik özellikleri üzerinden değerlendirme yapılmıştır.

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“…Average annual income from fibre was US$ 1 112.03 on small, US$ 3 164.86 on medium and US$ 6 698.74 on large farms with small farms earning US$ $ 20.77 per kg of fibre sold, medium farms US$ 73.38 and large farms US$ 24.93 (Artukoglu et al 2007). Treating Angora fibre with ozone increases its whiteness and dyeability with best degree of whiteness and colour yields being obtained by ozonation at 23-25 °C with water at pH 7 and 60 % water pickup value (Perincek 2008). Feeding 2 mg/kg live weight of doxorubin for three weeks to reduce fibre loss in Angoras resulted in a fibre weight increase of 167 % between weeks 2 and 5 (Powis & Kooistra 1987).…”

Section: Production and Usementioning

confidence: 99%

The domestic livestock resources of Turkey: Notes on rabbits and a review of the literature

Wilson

Yılmaz

2013

Arch. Anim. Breed.

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The Turkish wild rabbit is known from ancient times. As a minor component of Turkey's array of livestock and poultry there is no official information on numbers or production. The iconic Angora is the only native breed. Imported breeds include New Zealand White, California, Chinchilla, Line V and French Angora. The Angora is a registered breed and is being conserved ex situ in vivo. Official data give Angora weight as 3.5-4.0 kg in males and 4.0-4.5 kg in females, fibre production as 700-800 g from bucks and 1 000 g from does from four clips per year, first breeding age as 6 months, litter size 1-6 kits and production of four litters per year. Production research is limited but generally shows lower fibre output than official data. A comparative study with California and Line V rabbits showed the latter was heavier at birth and grew faster to 10 weeks. The rabbit has been used as an animal model in several studies. There is little information on meat and fibre marketing as there is on international trade but there have been sporadic imports of meat. Pathologies include coccidiosis, mange and myiasis. Constraints include lack of producer knowledge, poor quality feed, inadequate housing and lack of breeding stock. Opportunities lie in public and private support, genetic improvement for fibre for product diversification and increased incomes, improved marketing and niche markets for low cholesterol and low fat meat.

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Ozone treatment of Angora rabbit fiber

Cited by 57 publications

References 10 publications

Comparison of Various Additives in Cotton Bleaching Efficiency

Comparison of Various Additives in Cotton Bleaching Efficiency

Kıl Kökenli Lüks Liflerin Ayırt Etme Yöntemleri

The domestic livestock resources of Turkey: Notes on rabbits and a review of the literature

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