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Topic: Mordant


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In the News (Wed 17 Jul 19)

  
  MORDANT - Online Information article about MORDANT   (Site not responding. Last check: 2007-11-04)
The mordant most largely employed for wool is bichromate of potash, since, besides being simply applied, and leaving the wool with a soft feel, it yields with the various mordant-dyestuffs a large variety of fast colours.
On wool the mordant is bichromate of potash; on cotton and silk an iron mordant is employed.
Coerulein is employed in dyeing wool, silk or cotton with aluminium or chromium mordants, either as a self-colour or for compound shades.
encyclopedia.jrank.org /MOL_MOS/MORDANT.html   (5129 words)

  
 mordant - Encyclopedia.com
Either the mordant (if it is colloidal) or a colloid produced by the mordant adheres to the fiber, attracting and fixing the colloidal mordant dye (see colloid); the insoluble, colored precipitate that is formed is called a lake.
Cloth to be dyed may be treated first with the mordant and then with the dye, or the mordant and dye may be applied together.
Mordant mirth at Mendocino, as faithful keg is interred.
www.encyclopedia.com /doc/1E1-mordant.html   (753 words)

  
 Dye - Wikipedia, the free encyclopedia
The dye is usually used as an aqueous solution, and may require a mordant to improve the fastness of the dye on the fibre.
Mordant dyes require a mordant, which improves the fastness of the dye against water, light and perspiration.
The most important mordant dyes are the synthetic mordant dyes, or chrome dyes, used for wool; these comprise some 30% of dyes used for wool, and are especially useful for fl and navy shades.
en.wikipedia.org /wiki/Dye   (945 words)

  
 Dyes and Dyeing.
Mordant the yarn for 1 hour The starch must be mixed with a little cold water before it is added to the mordant.
The yarn is mordanted and dyed blue as the former have been and is boiled in the red dye for a half to one hour, according to the redness required.
Mordant the yarn as usual, and dye blue as in the case of former blue violet dyes.
www.frojel.com /Documents/Document07.html   (7733 words)

  
 Mordant dyes, Dying, Textile colors
Mordant dyes are those dyes which require a mordant in their application and which upon combination with the mordant deposit insoluble color on the substrate, e.g., dyes with metal chelating groups.
Mordants are substances of organic or inorganic origin which combine with the coloring matter and are used to fix the same in the production of the color.
The mordant substances include such acids as tannic acid, sumac, gall nuts, bark extracts, oleic and stearic acids, and Turkey red oil; and metallic substances such as various combinations or soluble salts of chromium, aluminum, iron, copper, and tin.
www.jagson.com /mordant_dyes.htm   (661 words)

  
 StainsFile - Stain theory - How mordants work
This term is derived from lac, a mordant dye obtained from an insect in India, and from which shellac is obtained.
The attachment of the mordant metal to tissue is essentially by the same mechanism as that causing attachment to the dye.
Attachment of mordanted dye is due to the mordant forming a chelate with a phosphate hydroxyl and another atom in a manner very similar to that between the mordant and the dye.
stainsfile.info /StainsFile/theory/mordant.htm   (921 words)

  
 Mordant - Wikipedia   (Site not responding. Last check: 2007-11-04)
A mordant is either inherently colloidal or produces colloids and can be either acidic or basic.
Mordants include tannic acid, alum, chrome alum, and certain salts of aluminum, chromium, copper, iron, iodine, potassium, sodium chloride (ordinary table salt) and tin.
Iodine is used as a mordant to set the first dye in Gram stains.
en.wikilib.com /wiki/Mordant   (88 words)

  
 Earth Guild Instruction Sheets
The mordant joins with the fiber and the dye to set the color permanently.
It enters deeply into the fiber, and when the dye is added, they combine to form a color; since the mordant is thoroughly embedded, so is the color.
Wool mordanted with tannic acid before dyeing tends to darken with age.
www.earthguild.com /products/riff/rmordant.htm   (783 words)

  
 Mordant Recipes- To make a Beautiful Colour
Mordants are the chemical compounds used to bind the dye to the fiber.
There are some fibers which need almost no mordanting and some dyes will produce strong colors without using mordants at all but these are exceptions rather than the rule.
This was handled two ways; either by adding the mordant to the dyebath or by preparing a separate mordant bath before the actual dyebath.
pages.sbcglobal.net /gcarnegie/article/art1mordant.html   (321 words)

  
 Dictionary.com/Word of the Day Archive/mordant
Justice Moorcroft's forte, a part which he had played for so many years that it had become instinctive, was a courteous reasonableness occasionally enlivened with shafts of mordant wit.
I moved from one knot of people to another, surrounded by a kind of envious respect because of Sophie's interest in me, although subjected to a certain mordant raillery from some of this witty company.
Mordant comes from the present participle of Old French mordre, "to bite," from Latin mordere.
dictionary.reference.com /wordoftheday/archive/2006/07/23.html   (99 words)

  
 Continuous-tone dyed diazo imaging elements - Patent 4220700   (Site not responding. Last check: 2007-11-04)
In any case, the mordant must be one which, by whatever mechanism, is capable of being retained in the photohardened form of the composition, in addition to being compatible as hereinbefore defined.
The mordant compositions useful in the present invention can be prepared by well-known chemical reaction techniques which have been extensively described in connection with the use of these same or similar materials in the photographic arts.
The amounts of mordant and binder used for the receiver layer are not critical and can range, for the mordant, between about 5.0 mg/dm.sup.2 (50 mg/ft.sup.2) and about 50 mg/dm.sup.2 (500 mg/ft.sup.2) and, for the binder, between about 0 and about 60 mg/dm.sup.2 (600 mg/ft.sup.2).
www.freepatentsonline.com /4220700.html   (6995 words)

  
 MORDANT MUSIC Q&A: Fact Magazine
Despite this variety of styles, Mordant never sound vacuously eclectic: all their releases are marked by the musty mysteriousness that is their trademark.
Baron Mordant: Eventually all conscious/subconscious creative influence reaches a confluence of alignment in art...it is perhaps that acute sense of unconscious timing that pervades ‘Dead Air’...it made itself.
As I said in one of the pieces I wrote about Mordant, MM seems to be about the very possibility of material disintegration (something that the infinite potential for replication of digitization has taken the sting out of).
www.factmagazine.co.uk /da/49823   (1501 words)

  
 Table Rock Llamas Fiber Art Studio
Mordant Pot Economy: When mordanting regularly with the same substrate, (dedicated silk mordant pot, dedicated wool mordant pot), it is possible to ‘re-seed’ the mordant pot by using the remaining mordant solution from the previous mordanting event.
Mordanting in the pot with the dye simultaneously has received mixed reviews, and we are not great fans of this style.
If you are mordanting large quantities, you may keep the dry and mordanted fibers in storage until you are ready to dye.
www.tablerockllamas.com /instructions/potassiumAlum.html   (955 words)

  
 Griffin Dyeworks: Catalog: Dyes and Mordants: Mordants and Modifiers
MORDANT comes from the French, meaning "to bite." Mordants are mineral salts that bind dyes into fiber, assure light- and wash-fastness, prevent color bleeding, brightens or changes some dye colors.
Dissolve mordant in a little water before adding to dyepot or color may be splotchy.
Alum and copper mordanted fiber doesn't need rinsing before going to the dyepot, but iron and tin mordanted fiber should be rinsed to prevent it from harming or stiffening fiber.
www.griffindyeworks.com /understanding_mordants.html   (1088 words)

  
 John Marshall: mordants
In the context of how the word will be used in this text, mordanting is adding a substance to the dye source to influence it, that is to bringing out characteristics that may be otherwise hidden or suppressed.
Mordants are commercially available, commonly in the form of salts from metals such as tin, chrome, iron, copper, and aluminum.
The advantage is that the mordant has a chance to "bite" into the fiber, so that when the color is applied, a maximum amount of bonding takes place.
www.johnmarshall.to /5-EDx-Mordants.html   (621 words)

  
 What's the difference between mordants and the other chemical assistants used in dyeing?
A mordant is a metal ion which attaches to the fiber, usually by being boiled together for a length of time.
Most but not all natural dyes are mordant dyes, which require the metal ion to be in the fiber in order for them to have any attraction to the fiber.
In some cases a mordant will improve the washfastness of an acid dye on wool, but there is no need to use a mordant with most synthetic acid dyes.
www.pburch.net /dyeing/FAQ/mordants_and_assists.shtml   (913 words)

  
 The SF Site Featured Review: Mordant's Need
In The Mirror of Her Dreams, the first book of the Mordant's Need series, he gives us Terisa, a young woman brought to a strange fantasy land, who adamantly insists she doesn't have the power to save the world.
Terisa, the protagonist of Mordant's Need, is unworldly, unimaginative, and not terribly aware of what's going on around her.
Mordant is alive with intrigue, plots, counter-plots, even subplots and there are plenty of interesting characters to go around.
www.sfsite.com /10a/mn161.htm   (952 words)

  
 Color diffusion transfer receiving layer comprising polymeric quaternary n-heterocyclic mordant - Patent 4124386
The polymer mordant having the structural unit represented by general formula (I) can be prepared by reacting a homopolymer, copolymer, or graft polymer of a halomethylstyrene, preferably a homopolymer, copolymer, or graft polymer of chloromethylstyrene, and a heterocyclic compound or by quaternizing the monomer with a heterocyclic compound and then polymerizing the product.
Or, further, the polymer mordant can be readily prepared by reacting a homopolymer of N-vinylimidazole or a copolymer of N-vinylimidazole and a vinylic monomer such as styrene, methyl methacrylate, and N-vinylpyrrolidone with a benzyl halide in a solvent such as dimethylformamide, dioxane, or ethanol.
Alternatively, the layer of the polymer mordant need not be formed preliminarily on the support and a solution of the polymer mordant can be applied on the surface of the support simultaneously when a liquid processing composition is spread thereover at development.
www.freepatentsonline.com /4124386.html   (8447 words)

  
 Dyes and Pigments - China GreatVista Chemicals
Much more often, however, the use of a reagent known as a mordant is necessary to fix dyes to materials.
A number of different compounds may be used as mordants, but metallic hydroxides of tin, iron, chromium, or aluminum are most common.
Oftentimes, the color that a particular dye imparts is dependent on the mordant it is utilized with.
www.greatvistachemicals.com /dyes_and_pigments   (1892 words)

  
 Fantasy Finder - S. Donaldson: Mordant's Need
Coming from Mordant, in a world where mirrors are magic, he is an apprentice Imager, though not a very good one.
Mordant is a country traditionally divided into several Cares, dominated by one or the other of the country's mighty enemies, Cadwal and Alend or occasionally independent.
When Terisa arrives to Mordant, she is thrown into a complicated game where noone knows who is friend or foe, and where she herself is considered an unknown but probably very important factor.
www.hoh.se /fantasyfinder/donald1.html   (492 words)

  
 vegetable mordant   (Site not responding. Last check: 2007-11-04)
A mordant is a chemical that, when "cooked" with the fiber, attaches itself to the fiber molecules.
Tyrian purple Vat dye Kermes Mordant dye Cochineal Mordant dye.
Vat dye Kermes Mordant dye Cochineal Mordant dye.
www.gardening-plus.com /articles/20/vegetable-mordant.html   (931 words)

  
 ReGen Reviews :: Mordant Music - Dead Air   (Site not responding. Last check: 2007-11-04)
Mordant Music's Dead Air is the type of album meant to be experienced, not casually listened to.
More artistic than accessible, more stream of consciousness than steady dance floor fodder, Mordant Music masterfully weaves such elements as musique concrete to electro, making them vanguards with a sound palette that they brush over a world of wire, static, steel, and mortar.
Vibrant, though not vacuous, Dead Air will remind some listeners of a late night movie they watched even though they didn't quite grasp the plot; a movie they continued to watch until the credits rolled and they were left contemplating what they had just witnessed.
www.regenmag.com /Reviews-818-Mordant-Music-Dead-Air.html   (404 words)

  
 JAIC 1982, Volume 21, Number 2, Article 3 (pp. 43 to 58)
By assessing the mordants used today as well as in the past, I hoped that results of this study would be useful in conservation and display decisions for contemporary textiles, as well as for historical textiles.
12 Quantities of the mordants and other agents used in the mordanting baths are given in Table I. Wool samples, weighing 454 g each, were mordanted at the boil for one hour, except for the samples with iron, which were treated for 30 minutes.
The effects of mordant on lightfastness have been known for some time in the textile industry,32 which is why chrome mordants are the only ones currently in use industrially.
aic.stanford.edu /jaic/articles/jaic21-02-003.html   (3880 words)

  
 JAIC 1982, Volume 21, Number 2, Article 3 (pp. 43 to 58)
In other words, the greatest amounts of color change were attributed to alum and tin mordants and the least amount of color change occurred with chrome, copper, and iron mordants as indicated by the significant main effects.
However, when comparing all dye-mordant combinations, there was one dye (choke cherry) with an alum mordant that had less color change than three dyes with chrome mordants (see Figure 2), yet even choke cherry followed the general trend of having the most color change when it was mordanted with alum or tin.
In fact, the tin mordant had a slope, B =.1557, which was five times larger than the slope with the copper mordant, B =.0319 (see Figure 3).
aic.stanford.edu /jaic/articles/jaic21-02-003_3.html   (1325 words)

  
 How To Mordant Cotton and Linen Yarns
Linen and cotton yarns require a different mordant preparation prior to using natural dyes.
The mordanted yarns can be dyed immediately, or dried and stored for later natural dyeing.
The mordant is suitable for cottons, linens and other bast fibres.
www.allfiberarts.com /library/howto/ht00/how_mordant_cotton_linen.htm   (207 words)

  
 How To Make a Tin Mordant For Natural Dyes
A Tin (stannous chloride) mordant can be used to obtain different colour variations than Alum (another commonly used mordant for natural dyeing.
The Tin mordant mixture can be reused by adding 1/2 the amount of Tin as previously used.
The Tin mordant mixture is suitable for wools, silks and other protein fibres.
www.allfiberarts.com /library/howto/ht00/how_tin_mordant.htm   (190 words)

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