• Direct dyes, including that portion of "all purpose" dyes that is left in cotton that has been dyed with them, are only loosely associated with the fiber molecule through the property called substantivity, which is the tendency of the dye to associate with the dye without strong bonds. (pburch.net)
  • This substantivity is increased by increasing the size of the dye molecule, so direct dyes tend to be large. (pburch.net)
  • Small dye molecules tend to be bright, while large dye molecules tend to be duller (as there are more parts that can absorb additional wavelengths of light), so direct dyes are generally much less bright in color than fiber reactive dyes. (pburch.net)
  • They are mainly used to dye wool, not cotton fabrics. (wikipedia.org)
  • These dyes possess acidic groups, such as SO3H and COOH and are applied on wool, silk and nylon when ionic bond is established between protonated -NH2 group of fibre and acid group of dye. (wikipedia.org)
  • In textiles, acid dyes are effective on protein fibers, i.e. animal hair fibers like wool, alpaca, and mohair. (wikipedia.org)
  • This is the amount they recommend for adding to 2.5 gallons of water, to dye one pound of wool, using Procion MX dyes. (pburch.net)
  • Concentrated powdered hot water dyes that produce the most vibrant possible results on protein fibers including silk, wool, cashmere, alpaca, feathers and nylon. (acherryontop.com)
  • A lot of wool dyers prefer Dharmaset to regular Acid Dyes. (dinashomeofcrafts.com)
  • Many acid dyes contain a sulfonic group, or, in some cases, a carboxylic group, which can form a strong 'salt linkage' to a basic group in the wool molecule. (pburch.net)
  • instead, the types of fiber reactive dyes used on cotton can be used simply as acid dyes with wool, even if the reactive groups on the dye have 'gone bad' by reacting with water. (pburch.net)
  • The alkaline conditions normally used with Procion MX dye on cotton will damage wool, though they work fine on silk. (pburch.net)
  • These may be used in dyeing wool, and the most hazardous mordant salt is potassium dichromate. (nsead.org)
  • Acid Dyes Are Applied To Fibres Such As Silk, Wool, Nylon And Modified Acrylic Fibres From Neutral To Acid Dye Baths. (fi-dyechem.com)
  • Acid donor for use in dyeing wool, silk and synthetic fibres. (avocet-dyes.co.uk)
  • February 9, 2017 Apply to dyeing of mordant dyes, metal complex dye and acid dyes of mercerized wool and chinlon and make dye bath pH slipping to acidity from neutral. (htfine-chem.com)
  • In contrast, basic dyes are used to stain cell nuclei and some other acidic components of tissues. (wikipedia.org)
  • Acid dyes affix to fibers by hydrogen bonding, Van der Waals forces and ionic bonding. (wikipedia.org)
  • Animal protein fibers and the synthetic fiber nylon contain many cationic sites that bind anionic dye. (wikipedia.org)
  • They are effective in dyeing the synthetic fiber nylon, but of minimum interest in dyeing any other synthetic fibers. (wikipedia.org)
  • There are many yellow and green dyes commercially applied to fibers that are related to triphenylmethane. (wikipedia.org)
  • For more information on using fiber reactive dyes under acid conditions, see Fiber Reactive Dyes for Protein Fibers . (pburch.net)
  • What kinds of chemical bonds attach dyes to fibers? (pburch.net)
  • Disperse dyes, used for synthetic fibers such as polyester, work by being vaporized by the heat of an iron or heat transfer press and then condensing onto and into the fiber. (pburch.net)
  • Such people are happier wearing natural fibers that have been dyed with fiber reactive dye. (pburch.net)
  • The attachment between acid dyes and the protein fibers that they join to are the most complex of all. (pburch.net)
  • Acid Dyes Are Anionic Organic Dyes That Are Used With Organic Cations Like Alum To Fix Them To The Surface Of Fibers. (fi-dyechem.com)
  • Microscopy , spectroscopy , powder X-ray diffraction , and computer modeling studies were consistent with a hierarchical self -assembly process involving the formation of cyclic H-bonded hexamers via the ISA carboxylic acid groups, which stack into elementary fibers stabilized by H-bonding of the amide linker groups and π-π stacking of the aromatic groups. (bvsalud.org)
  • They are a very concentrated mix of 1:2 metal complex, acid and reactive dyes with the highest wet and light fastness. (dinashomeofcrafts.com)
  • Fiber reactive dyes, such as the dichlorotriazines (Procion MX type dyes), are attached to the fiber by the same strong covalent bonds that hold the atoms within the dye molecule together. (pburch.net)
  • the use of wax in batik requires that dye reactions not involve heat, so both naphthol dyes and cool water fiber reactive dyes are suitable for this purpose. (pburch.net)
  • Naphtol dyes are less expensive than many fiber reactive dyes, and peculiarly suited to painting different colors immediately adjacent to one another on fabric. (pburch.net)
  • These are also known as fibre-reactive or cold water dyes. (nsead.org)
  • Reactive dyes are extremely reactive chemical compounds and are capable of reacting with body tissue. (nsead.org)
  • The respiratory tract is particularly sensitive to reactive dyes and allergic responses may occur. (nsead.org)
  • The constituent materials of these dyes, 'fast bases' (fast salts) and 'napthol', are highly reactive chemical compounds capable of causing dermatitis and other skin disorders. (nsead.org)
  • We are the leading Reactive Dyes Exporter in India. (aciddyes.in)
  • We as the leading Reactive Dyes Manufacturer make them with the aid of supreme grade raw materials at our hi-tech production department and they are quality tested rigidly at our quality control department thus the product at the user-end is very consistent and offers high performance. (aciddyes.in)
  • Leading manufacturer and exporter of reactive dyes & dyestuff. (fi-dyechem.com)
  • Discover 61 products from Rapid Reactive Dyes manufacturers, suppliers, distributors, and dealers across India. (tradeindia.com)
  • Rapid Reactive Dyes product price in India ranges from 100 to 1,275 INR and minimum order requirements from 1 to 250. (tradeindia.com)
  • Whether you're looking for Multi Color Reactive Dyes, Reactive 'He' Dyes, KeviActive Green 6B Dyes etc, you can explore and find the best products from Tradeindia. (tradeindia.com)
  • We offer a wide range of Rapid Reactive Dyes selections in various locations including Mumbai, Delhi, Ahmedabad, Ankleshwar, Vapi and many more. (tradeindia.com)
  • New analogs of the commercial asymmetric monomethine cyanine dyes thiazole orange (TO) and thiazole orange homodimer (TOTO) with hydroxypropyl functionality were synthesized and their properties in the presence of different nucleic acids were studied. (mdpi.com)
  • UniSafe Dye Nucleic Acid Staining Solution (20,000x) is a new and safe nucleic acid stain, an alternative to the traditional ethidium bromide (EtBr) stain for detecting nucleic acid in agarose gels. (unisciencecorp.com)
  • This new stain has two fluorescence excitation maxima when bound to nucleic acid, one centered at 309 nm and another at 419 nm. (unisciencecorp.com)
  • UniSafe Dye Nucleic Acid Staining Solution (20,000x) is as sensitive as EtBr. (unisciencecorp.com)
  • The staining protocol for UniSafe Dye Nucleic Acid Staining Solution (20,000x) is similar to that for EtBr. (unisciencecorp.com)
  • UniSafe Dye Nucleic Acid Staining Solution (20,000x) had a negative result in mouse marrow chromophilous erythrocyte micronucleus test and also in mouse spermary spermatocyte chromosomal aberration test. (unisciencecorp.com)
  • So it is wise to choose UniSafe Dye Nucleic acid Staining Solution (20,000x) instead of EtBr for detecting nucleic acids in agarose gels. (unisciencecorp.com)
  • UniSafe Dye Nucleic Acid Staing Solution (20,000x) is non-carcinogenic but may cause skin and eye irritations. (unisciencecorp.com)
  • 2. Add 5 ㎕ of UniSafe Dye Nucleic Acid Staining Solution (20,000x) to the agarose solution. (unisciencecorp.com)
  • Note: Repeated melting of gels containing UniSafe Dye Nucleic Acid Staining Solution (20,000x) may result in low sensitivity. (unisciencecorp.com)
  • Fluorescent dyes that stain nucleic acids have been used in the detection of blood parasites. (cdc.gov)
  • The structure predominates in the leveling class of acid dye. (wikipedia.org)
  • This includes their wet fastness, migration ability, and dyeing pH: Leveling acid dyes: These dyes have relatively low molecular weights. (wikipedia.org)
  • They require an acidic dye bath, often using sulfuric acid and sodium sulfate mixtures (pH2-4), together with leveling agents such as ethoxylated fatty amines. (wikipedia.org)
  • Directions are more involved than for Leveling or Milling class Acid dyes. (dinashomeofcrafts.com)
  • Leveling Agent for Acid Dyes 2015K - 翻译中. (htfine-chem.com)
  • Acid Leveling Agent HTW - 翻译中. (htfine-chem.com)
  • Acid dyes are generally divided into three classes according to their fastness requirements, migration ability, and dyeing pH. (wikipedia.org)
  • These dyes are highly applied in the textile industries due to their features such as excellent brilliance, colorfastness, wash fastness, non-toxicity, uniform dyeing effect, and permanence, etc. (aciddyes.in)
  • June 6, 2017 【Brief information 】Sulfur dye fixing agent is a formaldehyde-free fixing agent, mainly used in post-treatment of vulcanized dye fabrics and obviously all fabrics' fastness. (htfine-chem.com)
  • Some acid dyes are used as food colorants, and some can also be used to stain organelles in the medical field. (wikipedia.org)
  • Regarding cellular structures, acid dyes will stain acidophilic structures that have a net positive charge due to the fact that they have a negatively charged chromophore. (wikipedia.org)
  • Examples of acid dyes used in medicine include: Lee's stain (stains reddish-pink). (wikipedia.org)
  • Phosphotungstic Acid Hematoxylin (PTAH) stain (stains blue). (wikipedia.org)
  • Eosinophil-deficient eosinophils were named such because they are "acid loving" and stain positive for coal tar dyes and turn red after staining with a red dye (the Romanowsky method). (medscape.com)
  • Acid generates cation on fibre and temperature helps to substitute negative part of acid with anionic dye molecules. (wikipedia.org)
  • In the laboratory, home, or art studio, the acid used in the dye-bath is often vinegar (acetic acid) or citric acid. (wikipedia.org)
  • Use Citric Acid to dye release henna or cassia for color. (mehandi.com)
  • FAQ: How do you use citric acid as an auxiliary chemical for dyeing? (pburch.net)
  • Citric Acid is useful in sprouting, canning, drying or freezing to retard spoilage and prevent discoloration. (pburch.net)
  • Citric acid is popular for use when dyeing with acid dyes, although it's not mentioned in most books on hand dyeing. (pburch.net)
  • Her recipe for dye paint calls for one teaspoon (5.8 grams) of citric acid crystals for each cup (or 250 ml) of dye stock solution. (pburch.net)
  • advises the use of an equal volume of citric acid in acid dyeing recipes as a substitute for concentrated 56% acetic acid. (pburch.net)
  • Since ordinary vinegar in the US contains 5% acetic acid, as compared to the 56% acetic acid in concentrated acetic acid, you should divide the volume of vinegar called for by a factor of eleven, in order to find how much citric acid to substitute for it. (pburch.net)
  • ProChem's recipe for Rainbow Dyeing using WashFast Acid Dyes indicates that six tablespoons, or 105 grams, of citric acid is equivalent to six tablespoons, or 54 grams, of ammonium sulfate, or one liter of white vinegar. (pburch.net)
  • Another recipe by ProChem indicates that 2 tablespoons (35 gm) of dry citric acid crystals equals 2 tablespoons (56 gm) of sodium bisulfate, which equals 22 tablespoons (330 ml) of white distilled vinegar. (pburch.net)
  • If you have pH paper, you can easily determine how much citric acid is needed to reach a specific pH in your dyebath, before you add the dye. (pburch.net)
  • Although citric acid is a safe ingredient in foods, it's important to note that pure citric acid powder and strong citric acid solutions are much more irritating than diluted citric acid, to the skin, eyes and respiratory tract, enough to cause harm if you are careless. (pburch.net)
  • Don't breathe citric acid dust, and don't risk getting strong solutions of citric acid in your eyes. (pburch.net)
  • Citric acid is not as safe to work with as ordinary vinegar, but it is much more safe than concentrated 56% acetic acid, and safer still than glacial (99.5%) acetic acid, which makes it more convenient to use. (pburch.net)
  • Where can you buy citric acid? (pburch.net)
  • when you're ordering dyes anyway, it's convenient to buy your citric acid from your dye supplier. (pburch.net)
  • To find citric acid locally, look for a store that sells supplies for home beer and wine making, or a specialty Indian grocer. (pburch.net)
  • Confusing citric acid with ascorbic acid (vitamin C) is a common error, because everyone knows that citrus fruits are a good source of both citric acid and vitamin C. Don't confuse them when shopping for dyeing supplies. (pburch.net)
  • Ascorbic acid is much more expensive than citric acid, and it's not as good, because it's commonly diluted with inert chemicals. (pburch.net)
  • In fact the "Acid" is either citric acid (the same acid produced in lemons and limes) or vinegar. (surfingducks.com)
  • So if you need your dye job to be even and level, you will need to use some auxiliary chemicals besides just Vinegar or Citric Acid. (dinashomeofcrafts.com)
  • An additional source azo dyes that are used in commercial aromatic amines, in tobacco smoke. (who.int)
  • Structures of IARC Group 1 aromatic amines, drugs that are urothelial cancer in humans ( IARC, metabolized to Group 1 aromatic amines, and aristolochic acids. (who.int)
  • Knit Fast, Dye Yarn design by India Mercury, 2020. (skeinhead.com)
  • Hot wash at 170-180°F(77-82°C) to remove dye carrier. (organicdye.com)
  • Crewneck t-shirt made of garment-dyed cotton jersey with acid wash treatment. (franklinandmarshall.com)
  • They are more permanent than regular Acid Dyes, wash fast even in hot water, and completely intermixable to your heart's content to get any color or shade you want. (dinashomeofcrafts.com)
  • The most permanent, wash-fast dyes are the most tightly attached to the fiber molecules. (pburch.net)
  • Vat dyes are very wash-fast, but have the opposite reputation due to ring-dyeing. (pburch.net)
  • Handmade Tie-Dye acid wash is made to order. (koolforlifeshop.com)
  • Our Company, RED SUN DYE CHEM is an ISO 9001- 2008 certified Company. (aciddyes.in)
  • They recommend more acid for using Procion Mx dyes as acid dyes than they do for the other acid dyes they sell. (pburch.net)
  • According to the Brønsted-Lowry acid-base theory, an acid is a molecule or ion capable of donating a proton, and this is determined by the acid dissociation constant. (wikipedia.org)
  • The dye actually becomes one molecule with the fiber molecule to which it attaches. (pburch.net)
  • a single fatty acid molecule with high af®nity in Cistola et al. (lu.se)
  • Triarylmethane dye: These predominate in the milling class of dye. (wikipedia.org)
  • The fact that the dye can rub off on the wearer makes this class of dye more allergenic than other types of dye, though this is a problem for only a minority of people. (pburch.net)
  • This is a general one-bath procedure, for cross or union-dyeing, using Orcocilacron™ Disperse and Orco™ acid dyes on Polyester/Nylon blends. (organicdye.com)
  • Extremely brilliant and colorfast they produce a uniform dye job and the colors are beautiful, pure, transparent and luscious. (acherryontop.com)
  • Since it comes in powder form, it is more economical to ship than acetic acid (the acid that's found in vinegar), and it's much safer to work with (or to spill) than concentrated acetic acid. (pburch.net)
  • It is not volatile like acetic acid, so it won't fill your house with vinegar fumes when heated. (pburch.net)
  • electrolyte at higher concentration is added to retard dye uptake and to form levelled shades. (wikipedia.org)
  • The uptake rate of the dye is controlled with the use of sodium chloride. (wikipedia.org)
  • These new nanomaterials exhibited potential for the phase-selective gelation of oil from oil- water mixtures and dye uptake from contaminated water . (bvsalud.org)
  • 1993), as well uptake and translocation of long-chain fatty acids as NMR solution structures (Hodsdon et al. (lu.se)
  • Acid dyes are anionic, soluble in water and are essentially applied from acidic bath. (wikipedia.org)
  • C.I. Acid Black 1 C.I. Acid Yellow 36 C.I. Acid Blue 117 C.I. Acid Orange 19 C.I. Acid Blue 25 C.I. Acid Orange 3 Acidic dyes can be classified according to their dyeing behavior. (wikipedia.org)
  • Henna needs a mildly acidic mixture to release the dye from the powdered leaf. (mehandi.com)
  • Acid Veil Dye Works is a Luxury Yarn Dispensary that is lovingly hand dyed in a studio in Boise, Idaho! (twistedeweidaho.com)
  • So a perfect addition to your Knit Fast, Dye Yarn collection and to your home is the very limited edition A3 print of one of our most popular designs, our hand-dyeing member of the Skeinhead girl gang, Marianne! (skeinhead.com)
  • In addition to garment dyeing you can also paint or print with these dyes. (acherryontop.com)
  • Normally this is a sign of bad dye procedure, but the fading of blue jeans due to abrasion is generally appreciated, as it implies greater age for a garment than is actually the case. (pburch.net)
  • In order to prevent health hazards, a dye must be approved for consumption before it can be marked as edible. (wikipedia.org)
  • Available evidence indicates that 0.4 mg (400 ug) per day of folic acid, one of the B vitamins, will reduce the number of cases of neural tube defects (NTDs). (cdc.gov)
  • All women of childbearing age in the United States who are capable of becoming pregnant should consume 0.4 mg of folic acid per day for the purpose of reducing their risk of having a pregnancy affected with spina bifida or other NTDs. (cdc.gov)
  • The evidence that consumption of folic acid, one of the B vitamins, before conception and during early pregnancy (the periconceptional period) can reduce the number of NTDs has been accumulating for several years. (cdc.gov)
  • This work introduces a linearly aligned push-pull design principle that reaches from the ligand having nitrogen-based electron donors, over the Fe(ii) centre, to the ligand having an electron withdrawing carboxylic acid anchor group. (lu.se)
  • Acid dye classes that are applicable for this procedure are Orco Milling™ , Orco Nylosol™ , and Orcolan Neutral™ . (organicdye.com)
  • The vat dye is insinuated into the fiber while in a water-soluble form. (pburch.net)
  • General properties] Appearance:light yellow liquidIonicity:anionicSolubility:easily soluble in waterStability:stable to acid, alkali, electrolytes and hard. (htfine-chem.com)
  • Blue and purple long sleeve cotton jersey logo graphic print tie dye crew neck t-shirt. (influenceu.com)
  • A new generation of octahedral iron(ii)-N-heterocyclic carbene (NHC) complexes, employing different tridentate C^N^C ligands, has been designed and synthesized as earth-abundant photosensitizers for dye sensitized solar cells (DSSCs) and related solar energy conversion applications. (lu.se)
  • Our Company Is Recognized In This Field As A Valuable Manufacturer And Supplier Of High Quality Acid Dye. (fi-dyechem.com)
  • Most acid dyes are related in basic structure to the following: Anthraquinone type: Many acid dyes are synthesized from chemical intermediates that form anthraquinone-like structures as their final state. (wikipedia.org)
  • In addition, the requirements for forming the chemical bonds are what determine the ingredients and method for each recipe for dyeing. (pburch.net)
  • Only soap and water should be used to remove splashes from the skin, as chemical substances such as bleach or potassium manganate (VII) might break down the dyes into hazardous substances. (nsead.org)
  • Carbolic acid poisoning occurs when someone touches or swallows this chemical. (medlineplus.gov)
  • We are pleased to announce that the results of the recent IARC Monographs evaluation of the carcinogenicity of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) have now been published in The Lancet Oncology . (who.int)
  • Amla Powder can make henna and indigo paste dye your hair a cooler brunette. (mehandi.com)
  • Fixing Powder for Acid Dyes NRS - 翻译中. (htfine-chem.com)
  • Proteins are made of up to twenty different amino acids, each of which has a different side chain. (pburch.net)
  • Accession T0085 Systematic name g.1564A>C, c.127A>C, r.127a>c, p.Thr43Pro Description A point mutation in the exon 2 leading to an amino acid Description change Date 28-Jul-2010 (Rel. (lu.se)
  • In this context, if an acid is used instead of water, then the hydrogen ion (H+) is more easily able to dissociate in order to react with the aniline dye anion, allowing the dye to dissolve. (wikipedia.org)
  • Transient photovoltage measurements confirmed that adding the co-sensitizer chenodeoxycholic acid helped in improving the efficiency by increasing the electron lifetime in TiO 2 . (lu.se)
  • 100 fs) interfacial electron injection from the heteroleptic dyes to TiO 2 . (lu.se)
  • Therefore it is the ultrafast recombination down to fs-timescales, between the oxidized dye and the injected electron, that remains as one of the main bottlenecks to be targeted for achieving further improved solar energy conversion efficiencies in future work. (lu.se)
  • While some acid dyes work in water, many choose to activate dyes in acid dye-baths instead. (wikipedia.org)
  • Compared to most acids, water has a much higher pKa value, meaning that it dissociates to give H+ with more difficulty. (wikipedia.org)
  • As do felters who use hot water in their felting process, as the Dharmasets won't bleed, but the Acid Dyes will. (dinashomeofcrafts.com)
  • Vat dyes, such as indigo, are trapped within the fiber by having been converted to a form that is insoluble in water. (pburch.net)
  • Like Vat dyes, Naphthol dyes are held in the fiber in a water insoluble form. (pburch.net)
  • Their reaction results in the formation of a water insoluble dye, typically of a very different color than either of the two components. (pburch.net)
  • A maintenance diver died from hyperthermia as he was preparing to do routine maintenance on a water tank. (cdc.gov)
  • If the person swallowed the carbolic acid, give them water or milk right away, if poison control or a provider tells you to. (medlineplus.gov)
  • NOESY, nuclear Overhauser fatty acid, only eight water molecules are effect spectroscopy. (lu.se)