Printing of cotton with eco-friendly, red algal pigment from Gracilaria sp

[EN] Natural dyes represent an emerging trend in the textile industry and eco-fashion due to the increasing awareness of the sustainability concept, which must be applied to the surrounding environment. In the light of the stated problem, the search for alternative sources of dyes, revealed the new, eco-friendly, biodegradable, non-carcinogenic and sustainable colorant matter, the algal biomass. In the present work, the suitability and viability of printing cotton fabrics with pigments obtained from the red macroalgae Gracilaria sp., has been investigated. For this aim, phycoerythrin, the red pigment, was extracted from fresh algal biomass, and used in a laboratory pigment-printing process, employing a natural and synthetic printing paste, for process efficiency comparison. The color values and the rubbing and laundering fastness of the printed substrates were evaluated. Results show that a light pink color can be obtained when applying both tested printing processes, and in terms of color fastness, both printing pastes show good behavior. In conclusion, the algal pigments show a high printing capacity on cotton substrates, either when employing the synthetic conventional paste and; moreover, when applying the more sustainable and eco-friendly natural paste.This work was supported by the European research project ¨SEACOLORS¨ (Demonstration of new natural dyes from algae as substitution of synthetic dyes actually used by textile industries) within the LIFE 2013 ¨Environment Policy and Governance project application¨ program.Moldovan, S.; Ferrándiz, M.; Franco, E.; Mira, E.; Capablanca, L.; Bonet-Aracil, M. (2017). Printing of cotton with eco-friendly, red algal pigment from Gracilaria sp. IOP Conference Series Materials Science and Engineering. 254:1-6. doi:10.1088/1757-899X/254/19/192011S1625

USE OF DIFFERENT NATURAL DYE SOURCES FOR PRINTING OF COTTON FABRICS

Bu çalışmada pamuklu kumaşların doğal boyarmadde kaynakları ile basılması sağlanarak doğal ürünlere ve daha temiz üretime olan talebe cevap verilmesi amaçlanmıştır. Bu amaçla, ağartılmış, ağartılmış ve merserize edilmiş pamuklu kumaşlar, "nar kabuğu, fındık kabuğu, portakal ağacı yaprakları, havacıva bitkisinin kökü ve papatya" olmak üzere beş farklı doğal boya kaynağından elde edilen ekstraktlar kullanılarak pigment baskı yöntemi ile renklendirilmiştir. Bu sayede, pamuğun doğal boyarmadde kaynakları ile renklendirilebileceğinin gösterilmesi planlanmıştır. Çevre dostu üretim için, mordan maddesi kullanılmamış fakat yinede baskılı kumaşlardan yeterli haslık değerlerine sahip iyi renkler elde edilmiştir. Baskı işleminde boyarmaddenin bağlanması için mordan maddeleri yerine binder kullanılmıştır. Diğer boyama ve baskı işlemlerinde olduğu gibi, ön terbiye işlemlerinin pamuklu kumaşların doğal boyalar ile basılabilirliğine etkisinin olduğu tespit edilmiştir. Genel olarak merserizasyon işlemi ile yüksek renk verimlilikleri, daha koyu renk tonları ve aynı zamanda ışık haslıklarında artış, ve yıkama ve ter haslıklarında düşüş elde edilmiştir.In the study it was aimed to print cotton fabrics with natural dye sources to respond the demands on the natural products and cleaner production. For this purpose, bleached, bleached and mercerized cotton fabrics were colored by pigment printing method with the use of the extracts obtained from the five different natural dye sources "pomegranate peel, nutshell, orange tree leaves, alkanet roots and dyer's chamomile". By this way it was planned to show the coloration of cotton with natural dye sources. For the environmentally friendly production, no mordanting has been applied but good colors with sufficient fastnesses were observed from the printed fabrics nonetheless. In printing process, binder was used instead of mordanting agents for the fixing of the dye stuff. Like in other dyeing and printing processes, it was found that pretreatment processes had an effect on the printability of cotton with natural dyes. By mercerization higher color efficiencies, darker shades and meanwhile increases in light fastnesses and decreases in washing and perspiration fastnesses were generally obtained

USE OF DIFFERENT NATURAL DYE SOURCES FOR PRINTING OF COTTON FABRICS

Bu çalışmada pamuklu kumaşların doğal boyarmadde kaynakları ile basılması sağlanarak doğal ürünlere ve daha temiz üretime olan talebe cevap verilmesi amaçlanmıştır. Bu amaçla, ağartılmış, ağartılmış ve merserize edilmiş pamuklu kumaşlar, "nar kabuğu, fındık kabuğu, portakal ağacı yaprakları, havacıva bitkisinin kökü ve papatya" olmak üzere beş farklı doğal boya kaynağından elde edilen ekstraktlar kullanılarak pigment baskı yöntemi ile renklendirilmiştir. Bu sayede, pamuğun doğal boyarmadde kaynakları ile renklendirilebileceğinin gösterilmesi planlanmıştır. Çevre dostu üretim için, mordan maddesi kullanılmamış fakat yinede baskılı kumaşlardan yeterli haslık değerlerine sahip iyi renkler elde edilmiştir. Baskı işleminde boyarmaddenin bağlanması için mordan maddeleri yerine binder kullanılmıştır. Diğer boyama ve baskı işlemlerinde olduğu gibi, ön terbiye işlemlerinin pamuklu kumaşların doğal boyalar ile basılabilirliğine etkisinin olduğu tespit edilmiştir. Genel olarak merserizasyon işlemi ile yüksek renk verimlilikleri, daha koyu renk tonları ve aynı zamanda ışık haslıklarında artış, ve yıkama ve ter haslıklarında düşüş elde edilmiştir.In the study it was aimed to print cotton fabrics with natural dye sources to respond the demands on the natural products and cleaner production. For this purpose, bleached, bleached and mercerized cotton fabrics were colored by pigment printing method with the use of the extracts obtained from the five different natural dye sources "pomegranate peel, nutshell, orange tree leaves, alkanet roots and dyer's chamomile". By this way it was planned to show the coloration of cotton with natural dye sources. For the environmentally friendly production, no mordanting has been applied but good colors with sufficient fastnesses were observed from the printed fabrics nonetheless. In printing process, binder was used instead of mordanting agents for the fixing of the dye stuff. Like in other dyeing and printing processes, it was found that pretreatment processes had an effect on the printability of cotton with natural dyes. By mercerization higher color efficiencies, darker shades and meanwhile increases in light fastnesses and decreases in washing and perspiration fastnesses were generally obtained

Improving the Light Fastness of the Wool Dyed with Pomegranate Peels

Natural dyes are highly promising alternatives; however, their use has some drawbacks such as low light fastness, color yield, and repeatability. The objective of this study is to improve the light fastness of natural dyes. For this objective, wool fabrics dyed with pomegranate peels were subjected to different chemical treatments and UV curing. An important conclusion of this work is that UV curing can significantly increase the light fastness of the fabrics dyed with pomegranate peels. Moreover, different chemical processes including optical brightening have exhibited a positive effect on the light fastness of the samples. As an example, UV light exposure of the fabric, which was mordanted with copper sulfate and treated with TiO2, resulted in an increase of the light fastness from 4–5 to 7

Antimicrobial textiles for the healthcare system

Textiles are unique materials that can serve several different benefits to the user. They have different usage areas, from personal and fashion-oriented uses to technical purposes. They have changed and continue to change with time and culture. Nevertheless, it is not easy to find a different material that can replace textiles. It is therefore easy to see textiles in different areas. One of the most important uses is for medical purposes. Thus, this chapter intends to summarize antimicrobial textiles, especially antimicrobial textiles in healthcare systems. For this purpose, this chapter has given information about “Textiles in Healthcare Systems” and “Antimicrobial Textiles” within the framework of our perspective. © 2023 Elsevier Ltd. All rights reserved