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ÖZOMAY, MERAL

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Teknik Bilimler Meslek Yüksekokulu

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ÖZOMAY

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MERAL

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Now showing 1 - 10 of 10

Open Access
Microwave-assisted santalin extraction from Pterocarpus santalinus for mordanted woolen yarn dyeing
(2023-10-01) ÖZOMAY, MERAL; Mahboob M., Adeel S., Barkaat S., Ahmad T., ÖZOMAY M., Mia R., Mirnezhad S., Zuber M.
Natural dyes have attracted the world because of its ayurvedic and biological functioning characteristics. In this research, the functional bio-actives santalin from red sandal wood (RSW) powder has been isolated and exposed to MW treatment for up to 5 min. The extracts and fabrics were stimulated and used to dye at a given condition. The results revealed that 50 mL of red sandal wood extract (RSWE) at 4 pH containing 2g/100 mL of salt was employed at 65 °C for 65 min. After 4 min, MW treatment has given the highest color yield. The surface morphology of the fiber shows that the yarn surface has been modified without any chemical changes. Mordanting with chemical and biological extract at low amounts has improved shade fastness with new tints. It can be calculated that MW ray has the potential to explore colorant from crude powder in a suitable solvent under mild conditions but also reducing dyeing conditions and mordant, revealing that this green tool is cost, energy and time effective.
Open Access
Sustainable extraction of colourant from harmal seeds (peganum harmala) for dyeing of bio-mordanted wool fabric
(2022-10-01) ÖZOMAY, MERAL; Adeel S., Anjum F., Zuber M., Hussaan M., Amin N., ÖZOMAY M.
The recent pandemic scenario has caused demand for green products that have medicinal aspects, as well as greener approaches for global health. Natural dye from plants, particularly from harmal seeds, is an excellent alternative to carcinogenic yellow synthetic dyes. The current study has been conducted to isolate natural colorants from harmal seeds in methanolic medium through Gamma-Assisted Extraction (GAE). The dyeing variables that are necessary for shade development before and after mordanting were selected. It has been found that 6 kGy is the optimal absorbed dose for extraction of colorant from 6 g of powder to isolate the colorant in the methanolic medium through the Gamma-irradiated extraction mode (GAE). To get excellent results, 30 mL of methanolic extract containing 6 g/100 mL of Glauber salt was sued for dyeing of irradiated wool at 45 degrees C for 65 min. For improving the color strength and acceptable rating of fastness, 9% of henna, 3% of acacia, 10% of turmeric, and 7% of pomegranate extracts as pre-bio-mordants as well as 7% of acacia, 3% of pomegranate, 9% of henna, and 10% of turmeric extracts as post-mordants have given high results compared to when chemical mordants have been used. It was concluded that Gamma-ray treatment has excellent color strength in the dyeing of bio-mordanted wool using harmal seed extracts under mild conditions, and has good fastness ratings after using chemical and bio-mordanting methods as well.
Open Access
Environmentally friendly dyeing of waste cellulose fiberwith natural dye extract obtained from walnut shell(juglans regia)
(2023-05-15) ÖZOMAY, MERAL; ÖZOMAY, ZAFER; Kaya S. S., Doğru D., Adeel S., Özomay M., Özomay Z.
Cellulose is an important raw material in the manufacture of paper. Cellulose is formed by thefelting, fringing, swelling by absorbing water of the fibers and the combination of these fibersas a result of certain processes. Paper is also obtained by processing plant fibers. It is alsopossible to reuse the waste paper, which are completed in utilization, in paper production byrecovering the cellulose in its structure. Recycling is the process of transforming these wastepapers, which can be reused, into a second raw material by subjecting them to physical orchemical processes. In addition to being sustainable, significant savings are achieved in theamount of raw materials used in paper recycling. In addition, this saving is economicallybeneficial to production due to the high cost of raw materials.In this study, natural dye plants and natural dyeing methods were used to produce paper fromrecycled cellulose with the aim of increasing sustainability. In order to prevent the negativitiesoriginating from the increase in carbon emissions that synthetic dyes cause, it is aimed toincrease the use of natural dyeing methods in paper production. Since natural dye plants areproduced from plant itself or its waste, they do not cause environmental pollution and provideadvantages for recycling.In this study, cellulose fibers were colored with natural dyeing method using walnut shell.Thus, between the fibers, samples colored with walnut shells and samples that were notcolored were examined under two different conditions. Samples were prepared in twodifferent ponds, 5 L and 8 L, with a fixed ratio of solids. Paper sheets were formed with thesieve using the dipping method in the prepared concentration and at the same time, thetechnical properties of the samples were examined by reducing the fibers at a certain rate.Samples were measured in terms of weight, color measurement, light fastness, contact angle,surface smoothness, air permeability and compared with the data obtained.Keywords: Waste paper, Recycling, Natural dyeing, Sustainability
Open Access
Sustainable exploration of coffee extracts (coffea arabica l.) for dyeing of microwave-treated bio-mordanted cotton fabric
(2023-04-11) ÖZOMAY, MERAL; Adeel S., Rehman F., Amin A., Amin N., Batool F., Hassan A., ÖZOMAY M.
Purpose This study aims to observe the coloring efficacy of coffee-based natural brown colorant for cotton dyeing under microwave (MW) treatment. Design/methodology/approach The colorant extracted in particular (neutral and acidic) media was stimulated by MW treatment up to 6 min. Dyeing variables were optimized and 2-10 g/100 mL of sustainable anchors (mordants) have been used to get colorfast shades. Findings It has been found that un-irradiated acidic extract (RE) containing 5% of table salt at 80 degrees C for 50 min has given high color yield onto MW-irradiated cotton fabric (RC = 2 min). The utilization of 2% of Fe, 10% of tannic acid and 10% of sodium potassium tartrate before bio-coloration, whereas 4% of Fe, 10% of tannic acid and 6% of sodium potassium tartrate after bio-coloration has given good color characteristics. In comparison the application of 6% of pomegranate and turmeric extracts before bio-coloration and 6% of pomegranate and 10% of turmeric extracts after bio-coloration have given good color characteristics. New bio-mordants can be added to get more new colorfast shades. Research limitations/implications There is no research limitation for this work. New bio-mordants can be added to get more new colorfast shades. Practical implications This work has practical application for artisans, textile industry and handicrafts. It is concluded that colorant from coffee beans can be possible alternative of synthetic brown dyes and inclusion of MW rays for extraction and plant molecules as shade developers can make process more green. Social implications Socially, it has good impact on eco-system and global community because the effluent load is not carcinogenic in nature. Originality/value The work is original and contains value-added product for textiles and other allied fields.
Open Access
Green application of isolated colorant from neem bark for mordant-coated wool: Optimization of dyeing and mordanting for shade development
(2023-09-01) ÖZOMAY, MERAL; Adeel S., Zuber M., Kınık M., ZOR A., BÜYÜKKOL S., Kahraman A. D., ÖZOMAY M., Döl A., LEHİMLER Z., Khattak S. P.
This study aimed to assess the effectiveness of utilizing a tannin-based natural brown colorant from neem bark for dyeing wool under microwave treatment, specifically evaluating its coloring efficiency. The colorant was extracted in a methanol solution that had been acidified both before and after being subjected to microwave treatment for up to 6 min. The dyeing variables were optimized to create new shades of dye with desirable fastness properties, and sustainable chemical and bio-mordants ranging from 1 to 10 g/100 mL were employed. Through experimentation, it was determined that when an unirradiated acidic methanolic extract (AME) with a salt concentration of 3 g/100 mL was applied onto wool fabric (RWF) and subjected to microwave treatment for 4 min, it resulted in a high color yield. This was achieved by heating the solution to 65 °C and allowing it to remain in contact with the fabric for a duration of 65 min. Favorable color characteristics were achieved when utilizing a pre-chemical mordant of 5% Fe and a post-chemical mordant of 5% Fe. In contrast, the utilization of 7% henna as a pre-bio-mordant in combination with 3% turmeric extract as a meta-bio-mordant resulted in favorable color characteristics. The study concludes that microwave treatment exhibits outstanding sustainable efficacy in isolating colorants from neem bark powder for wool dyeing. Incorporating bio-mordants further enhanced the process’s sustainability and eco-friendliness.
Open Access
Eco-friendly bio-dyeing of bio-treated nylon fabric using Esfand (P. harmala) based yellow natural colorant
(2022-04-01) ÖZOMAY, MERAL; Adeel S., ul Hasan M., Batool F., Ozomay M., Hosseinnezhad M., Amin N., Hussaan M.
The ongoing age is the time of sustainability, where in the current pandemic scenario, which is getting worse, needs treatment with nature rather than chemical-based products. In this study, microwaves (M.W. rays) treatments as extraction mode for Esfand (P. harmala) have been revived for polyamide (nylon) dyeing. The water solubilized and acid solubilized filtrates and polyamide (nylon fabrics) were treated M.W. rays up to 10 min with an interval of 2 min. Mordanting with chemicals and plant extracts before and after dyeing was done at 60 degrees C-80 degrees C. It has been found the application of M.W. ray treatment for 4 min., to 30 mL of extract of 8 pH containing 4 g/100 mL of Table salt as leveling agent has given desired results when employed at 55 degrees C for 55 min. Statistical analysis of dyeing variables through R.S.M., and two way-Anova shows that the effect of these variables has been observed highly significant. Experimentally it has been observed that the application of extract for dyeing of polyamide (nylon fabric) has given good results when chemical or bio-mordanted at selected conditions. Practically, Esfand seeds has ability for bio-coloration of surface modified polyamide fabric (nylon fabric), and utilization of pomegranate extract as bio-mordant and tannic acid as sustainable chemical mordant has furnished colorfast shades.
Open Access
Anar Phali (Opuntia ficus) juice extract as a novel pollution-free source of natural betalain dye for wool yarn
(2023-01-01) ÖZOMAY, MERAL; Riaz Y., Barkaat S., Adeel S., Fazal-ur-Rehman F., Ibrahim M., Zuber M., ÖZOMAY M., Khattak S. P.
Green products such as plant pigments in all filed are gaining fame globally due to their excellent ayurvedic and biological characteristics. In this study, microwave rays have been employed for the isolation of colorants from Anar Phali while bio-mordant have been included to get color-fast shades. The colorant was isolated in an acidic medium before and after microwave rays for 2 min. For getting darker shades with different tints, sustainable chemical and plant-based extracts as bio-mordant have been employed before and after bio coloration of wool yarn at given conditions. CIE Lab system computed in Colori-spectrophotometer (CS-410) was used to observe the change in color depth and tonal variation of dyed fabrics, and ISO standard methods have been employed to rate the colorfastness to light, washing, and rubbing at grey scale. It is concluded that microwave rays have an excellent sustainable efficacy to isolate colorant from Anar Phali powder for wool dyeing, whereas the addition of bio-mordants has made the process more sustainable and eco-friendly.
Open Access
Sustainable and environmental dyeing with MAUT method comparative selection of the dyeing recipe
(2023-02-01) ÖZOMAY, MERAL; Özomay M.
The textile industry is one of the most complex sectors, in terms of the materials andchemical processes used from petroleum and the environmental degradation during its productionand disposal. It is therefore a sector looking for new possibilities and for more sustainable materialsand applications. One option is to use natural dyes, as they are considered biodegradable, do notpollute the environment, and have potential use for many sectors, including the fashion industry.In this study, Alanya silk was dyed by a natural dyeing method with crocus sativus, Helichrysumarenarium, and Glycyrrhiza glabra L., plants that grow in and around the Alanya region. Quercusaegilops L. grown in the region was preferred as mordant, a natural binder, and is one of the plantswith the highest tannin content, and it was used with a more environmentally friendly and sustainableapproach to increase the binding in natural dyeing instead of chemical mordants. The aim is to providean environmental and scientific contribution to the dyeing producers in this region. According to theMAUT (Multi-Attribute Utility Theory) method, the best dyes in terms of fastness and color efficiencywere determined as the dyes made with the Glycyrrhiza glabra L. plant.
Open Access
Green application of ultrasonic waves for extraction of yellow colorant from haar singhar and its colouring behaviour in cotton dyeing
(2023-01-01) ÖZOMAY, MERAL; Nasreen H., Adeel S., Yameen M., Amin N., Özomay M., Qayyum M. A.
Natural dyes have grown in popularity due to their eco-friendliness. They can be used as a substitute for synthetic dyes to minimize environmental pollution. This research investigates the natural colouring behaviour of haar singhar flower (HSF) extract in cotton dyeing. Colorant was extracted under various conditions utilizing various extraction mediums such as aqueous, basic, and acidic. On cotton, it was discovered that applying 55 mL of aqueous extract containing 1.5 g/100 mL sodium chloride for 40 minutes at 70 °C yielded the best colour output. A new hue with good colour fastness was developed utilizing chemical and bio-mordants. The existence of nyctanthin as a colouring agent in haar singhar flowers was discovered through FTIR analysis of the extract. The CIE Lab system revealed that using 2 g/100 mL of pistachio shell as a bio-mordant resulted in good quality reddish yellow hues. It was discovered that ultrasonic radiations have a high potential for isolating colourants and dyeing cotton fabric under decreased conditions of temperature, time and volume. The application of biomordants has made the procedure greener, more efficient, and safer.
Open Access
Eco-friendly microwave assisted sustainable coloration of silk and wool fabric with Acid Blue 07 dye
(2023-01-01) ÖZOMAY, MERAL; Adeel S., Akram H., Usman M., Bokhari T. H., Aftab M., ÖZOMAY M.
Environment-friendly textile processing is the demand of the current global scenario, where the application of sustainable technologies such as microwave radiation has been gaining fame in all global fields due to their green and human-friendly nature. This study has been conducted to employ sustainable technology such as microwave (MW) rays for dyeing polyamide-based proteinous fabric using Acid Blue 07 dye. The fabric before and after MW treatment for up to 10 min has been dyed using an acid dye solution. Spectrophotometric analysis of the dye solution was performed before and after irradiation at a specific selected level. Using selected dyes and irradiation conditions, a series of 32 experiments using a central composite design has been employed. The shades made at selected conditions of irradiation and dyeing were assessed for colorfastness as per ISO standards. It was observed that for dyeing silk, 55 mL of Acid Blue 07 dye solution containing 1 g/100 mL salt solution at 65 °C for 55 min should be employed after MW treatment for 10 min. In comparison, for dyeing wool, 55 mL of Acid Blue 07 dye solution containing 2 g/100 mL salt solution at 65 °C for 55 min should be employed after MW treatment for 10 min. Physiochemical analysis shows that sustainable tool has not altered the chemical nature of fabric but has modified the fabric surface physically to enhance uptake ability. Colorfastness shows that the shades made have offered good resistance to fade and have given good to excellent ratings on the gray scale.