Results 31 to 40 of about 246,830 (203)

Enhancement stability and color fastness of natural dye: A review

open access: yesOpen Engineering, 2021
Consumer awareness of the adverse biological effects of synthetic dyes makes the demand for commercial foods and drinks with natural ingredients increase.
Harsito Catur   +3 more
doaj   +1 more source

Removal of reactive dyes by quaternized coconut husk [PDF]

open access: yes, 1998
Coconut husk modified through the use of N-(3-chloro-2-hydroxypropyl)- trimethylammonium chloride was evaluated for its ability to remove reactive dyes from aqueous solution. Sorption of dyes was pH dependent and favorable sorption occurred at low pH. In
Lee, Chnoong Kheng   +2 more
core   +1 more source

Eco-friendly dyestuffs prepared with Curcuma Longa L. extracts and their antimicrobial activities

open access: yesGreen Technologies and Sustainability
In this study, wool, cotton, polyester fabrics and wood samples were dyed with Curcuma longa (turmeric) extracts using CuSO4, FeSO4 and AlK(SO4)2 mordants.
Hasan Çolak   +4 more
doaj   +1 more source

Textile dyeing by dyestuffs of natural origin [PDF]

open access: yesHemijska Industrija, 2006
The textile industry is one of the biggest industrial consumers of water especially dye houses which utilize synthetic dyes and other chemicals. Natural dyes are generally environmental friendly and have many advantages over synthetic dyes with respect ...
Šmelcerović Miodrag   +2 more
doaj   +1 more source

Ekstraksi dan Uji Stabilitas Zat Warna Alami dari Biji Buah Pinang (Areca catechu L.) sebagai Bahan Pengganti Pewarna Sintetik pada Produk Minuman

open access: yesKovalen: Jurnal Riset Kimia, 2021
Natural dyes are an alternative dye that is not toxic, environmentally, friendly and easily degraded. Therefore, optimizing the use of body coloring sources is carried out. One of the natural dyes released is tannin from betel nuts.
St Chadijah   +4 more
doaj   +1 more source

Ultrasound-enhanced hair dye application for natural dyeing formulations

open access: yesUltrasonics Sonochemistry, 2019
Advances made in recent years have allowed the application of colorants obtained from natural sources into textile dyeing. The use of ultrasound in the dyeing method is reported to increase dye uptake and decrease dyeing times. The aim of this work is to further extend the knowledge of natural hair dyes considering the use of ultrasound in the dyeing ...
Gonzalez, V.   +4 more
openaire   +4 more sources

Penggunaan zat warna alam untuk kulit non konvensional

open access: yesMajalah Kulit, Karet, dan Plastik, 2006
The objective of this experiment was to apply the natural dyes for non conventional leather with mordant environmental friendly. This research used lizard skins, cobra skins and kakap fish skins from dried preservation; woods extract of secang, tegeran ...
Emiliana Kasmudjiastuti
doaj   +1 more source

Photoabsorption Enhancement in Synthetic-Natural Dye-Sensitized Solar Cells Using Bilayer TiO2 Deposition and Separated Sensitization

open access: yesInternational Journal of Photoenergy, 2022
In this study, a new methodology is proposed for the cosensitization of dye-sensitized solar cells by synthetic and natural dyes to increase their optical absorption. Synthetic dyes are efficient but expensive.
Roohollah Nakhaei   +4 more
doaj   +1 more source

Model Pemilihan Bahan Pewarna Alam Coklat Batik Tulis Solo Dengan Menggunakan Metode Analytical Hierarchy Process (Ahp) [PDF]

open access: yes, 2014
Natural dyes of batik has claimed to be more environmentally friendly and has been known lower emissions. The use of natural dyes for batik especially highly recommended.
Hartini, S. H. (Sri)   +2 more
core   +2 more sources

Classifications, Advantages, Disadvantages, Toxicity Effects of Natural and Synthetic Dyes: A review

open access: yesمجلة علوم ذي قار, 2021
Dyes are complex organic compounds, which are used by various industries to colour their products. Natural and synthetic dyes are compounds of great interest since they play an important role in our everyday life.
Sajda .S. Affat
doaj  

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