Results 21 to 30 of about 246,830 (203)

Investigation of dyeing based on pandanus amaryllifolius for superhydrophobic coating in cotton-polyester blended in textile application [PDF]

open access: yes, 2020
Natural dyes are derived from natural resources. Colouring materials obtained from natural resources of plant, animal, mineral, and microbial origins were used for colouration of various textile materials.
Chew, Gin Yan   +3 more
core  

Environmental effects of natural dyes and syntetic dyes: a comparison [PDF]

open access: yes, 2020
Dyes is important to add colorant on fabrics. The dyeing process makes a fabric colourful and attractive. However, the waste disposed by dyeing process was hazard to environment especially synthetic dyes.
Jalil, Anis Jazira   +3 more
core  

Natural Dye of Beetroot

open access: yesARO-The Scientific Journal of Koya University, 2023
In this study, a simple and indirect spectrophotometric method for the quantification of atenolol in pharmaceutical formulations, utilizing a natural food dye extracted from red beet root, is presented. The process involves the oxidation of atenolol in a 1 mol/LHCl acidic medium, using an excess of potassium persulfate.
Tara F. Tahir   +2 more
openaire   +3 more sources

Dyeing of silk fabric with natural dyes extracted from cochineal (Dactylopius coccus Costa) and gall oak (Quercus infectoria Olivier)

open access: yesJournal of Natural Fibers, 2018
Silk fabric samples were mordanted with alum [KAl(SO4)2.12H2O]. Then, the samples were dyed with cochineal (Dactylopius coccus Costa) and gall oak (Quercus infectoria Olivier) shellac extracts. Optimum dyeing parameters were determined by using different
Burcu Yılmaz Şahinbaşkan   +2 more
doaj   +1 more source

Overview on natural dyes and their IR-spectra – Part I: Plant based dyes with naphthoquinone and anthraquinone structure

open access: yesCommunications in Development and Assembling of Textile Products
This is the first paper of a series of review articles reporting on natural dyes, their origin and infrared spectra (IR spectra). One aim of this review series is to compare IR spectra of natural dyes from different origin and discuss if this ...
Boris Mahltig
doaj   +3 more sources

Utilization dyeing process of coffea pigment as superhydrophobic coating on fabric application [PDF]

open access: yes, 2020
Synthetic pigments and dyes was frequently used for textile products in order to fulfill the customers demand because it is less expensive and high durability compared to natural pigments or dyes. Therefore, the contribution of synthetic dyes waste water
Mahmood, Salwa   +3 more
core  

Natural Dyes Product Design Using Green Quality Function Deployment II Method To Support Batik Sustainable Production

open access: yesE3S Web of Conferences, 2018
Using synthetic dyes causes bad impact on the environment. But using natural dyes has several problems such as fade, slight colour variations and takes longer time. In order to solve that problems, it is needed to develop instant natural dyes. This study
Ika Rinawati Dyah   +3 more
doaj   +1 more source

Extracting natural dyes from wool—an evaluation of extraction methods [PDF]

open access: yes, 2011
The efficiency of eight different procedures used for the extraction of natural dyes was evaluated using contemporary wool samples dyed with cochineal, madder, woad, weld, brazilwood and logwood.
Barrocas Dias, Cristina   +3 more
core   +1 more source

Preparation of Natural Plant Polyphenol Catechin Film for Structural Coloration of Silk Fabrics

open access: yesBiomimetics
Traditional textile dyeing uses chemical pigments and dyes, which consumes a large amount of water and causes serious environmental pollution. Structural color is an essential means of achieving green dyeing of textiles, and thin-film interference is one
Shuaikang Yang   +8 more
doaj   +1 more source

Indigofera: “Kini dan Nanti”

open access: yesBioedukasi: Jurnal Pendidikan Biologi, 2014
Indigofera tinctoria as one of natural blue  dyes that has been since the 4th century inIndonesia. The use of natural dyes in decline with synthetic dyes.
MUZAYYINAH MUZAYYINAH
doaj   +1 more source

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