Directory Listings Of Top Market Fabric Suppliers In The UK

555722790393613763_3d6571c7061dClick the fabric company name for their web site:

Abbot and Boyd 020 7351 9985
Altfield 020 7351 5893
Alton Brooke 020 7376 7008
Borderline 020 7823 3567
Brian Yates 01524 35035
Brunswig 020 7351 5797
Bruno Triplet 020 7823 9990
Chase Erwin 020 8875 7441
Colefax 020 7244 7427
Colony Fabrics 020 7351 3232
Donghia 020 7823 3456
Gainsborough Silk 01787 372081
Henry Bertrand 020 7349 1477
Jab 020 7349 9323
Jane Churchill 020 7244 7427
Jrobertscott 020 7376 4705
KOTHEA 020 8943 4904
Kravet 020 7795 0110
Lee Jofa 020 7823 3455
Lelievre 020 7352 4798
Manuel Canovas 020 8877 6400
Nobilis 020 7351 7878
Pierre Frey 0207 376 55 99
Robert Allen 01494 474741
Sacho Hesslein 020 7352 6168
Silk Gallery 020 7351 1790
Turnell and Gigon 020 7259 7280
Watts Westminster 020 7376 4486
Zimmer and Rhode 020 7351 7115
Zoffany 08708 300 350

Many of these fabric companies sell a wide range of products including: chenille, contract fabric, faux / fake leather, mohair velvet, linen velvet, cotton velvet, wool,  hand woven products, natural silk, cashmere and damask for upholstery, curtains and cushions.

Fabric Treatment Companies – FR Flameproofing

We are often asked to recommend fabric treatment companies for flame retarding in contract installations. Most treatment companies offer other services such as; back coating fabric for walls and stain resistance/repellency. There are several such companies in the UK and at various times we have used all of the following:

Essex Flameproofing,

Textiles FR, and

TEK Treatments

Just click the company name to take you to their web site. Please feel free to add comments to this posting recommending any suppliers you have used but any negative comments about other companies are not permitted on this site. Thank you.

A-Z Interior Fabric Qualities

2A-Z Glossary or Guide of fabric qualities

A

American Cotton
Cotton of medium fineness and medium staple length.

Alpaca Angora
Natural hair from the alpaca, or animal from which the fibre alpaca is obtained.
Angora
Hair fibre from the angora rabbit.

B
Batiste
Fine, soft,plain weave fabric. Originally linen, now other fibres, eg cotton.
Blend
Combination of two or more different fibres within the same yarn. This can be for cost, properties and/or appearance.
Birds-eye
Colour-and-weave effect where the pattern shows small, uniform spots. The reverse side of a flat jacquard weft knitted fabric where the yarns are arranged to show minimum amounts of each colour in an all-over pattern.
Bouclé yarn
Fancy yarn showing an irregular pattern of curls or loops.
Bourrelet
Non-jacquard double jersey weft knit structure made on an interlock basis showing horizontal ridges on the effect side.
Brocade
Figured woven jacquard fabric, usually multicoloured, much used for furnishings.
Buckram
Plain weave fabric, generally of linen or cotton, which is stiffened during finishing with fillers and starches. Uses include interlinings and bookbinding fabrics.

C
Calico

General term used for plain cotton fabrics heavier than muslin. These are usually left unbleached, area made in a variety of weights, and are often used for making toiles.
Cambric
Lightweight, closely woven, plain weave fabric, usually made from cotton or linen.
Canvas
Strong, firm, relatively heavy and rigid, generally plain woven cloth traditionally made from cotton, linen, hemp or jute.
Cavalry twill
Firm woven fabric with a steep twill showing double twill lines, traditionally used for riding breeches and jodphurs.
Chambray
Lightweight, plain weave cotton cloth with a dyed warp and a white weft.
Cheesecloth
Open, lightweight, plain weave fabric with a slightly crêpey appearance, usually made from carded cotton yarns with higher than average twist.
Chenille yarn
Fancy yarn produced by weaving a leno fabric and cutting into warp-way strips so that each strip forms the yarn, which has a velvety, caterpillar-like appearance.
Chiffon
Originally a very lightweight, sheer, plain weave fabric made from silk. Now can also be used to describe a similar fabric using other fibres.
Chiné yarn
Originally a 2-fold yarn, one black, one white, giving a regular two colour effect. Term now used to describe any 2-fold, two colour yarn.
Chintz
Closely woven, lustrous, plain weave cotton fabric, printed or plain, that has been friction calendered or glazed. Much used for curtainings and upholstery.
Coir
Natural vegetable fruit fibre from the coconut.
Colourway
One of several combinations of colours used for a particular fabric.
Corduroy
Wove, cut weft-pile fabric where the cut pile runs in vertical cords along the length of the fabric. A number of different types are found, ranging from pincord (very fine cords) to elephant cord (very broad cords).
Crepe
Fabric characterised by a crinkled or puckered surface, which can be produced by a number of methods. 1. woven fabric where short, irregular floats in warp and weft are arranged to give an all-over, random pattern within the weave repeat. 2. woven or knitted fabric where the crêpe characteristics are achieved mainly by the use of highly twisted yarns, which in finishing develop the crinkled, puckered appearance of a crêpe. 3. fabric where the crêpe effect is produced in finishing by treatment with embossing rollers, engraved with a crêpe pattern, which impart a crêpe effect onto the fabric through heat and pressure.
Crêpe de chine
Lightweight, plain weave crêpe fabric, made with highly twisted continuous filament yarns in the weft, alternating one S and one Z twist, and with normally twisted filament yarns in the warp. The crêpe effect is relatively unpronounced.
Crepe yarn
Spun or filament yarns that are very highly S or Z twisted used for the production of crepe fabrics.

D
Delaine

Lightweight, printed, all wool plain weave fabric.
Doupion (or Dupion)
Silk-breeding term meaning double cocoon, used to describe the irregular, raw rough silk reeled from double cocoons.
Drill
Woven twill fabric with a similar structure to denim, but usually piece-dyed.

E
Egyptian cotton
Type of cotton characterised by long, fine fibres.

G
Gauze
Lightweight, open-textured fabric made in plain weave a simple leno weave.
Georgette
Fine, lightweight, plain weave, crêpe fabric, usually having two highly twisted S and two highly twisted Z yarns alternately in both warp and weft.

H
Hopsack
Variation on plain weave, where two or more ends and picks weave as one. Sometimes called basket weave.

I
Indian cotton
Type of cotton characterised by relatively short, coarse fibres.
Interlining
Fabric used between the inner and outer layers of a garment to improve shape retention, strength, warmth or bulk. Interlinings may be woven, knitted or nonwoven, and can be produced with fusible adhesive on one surface.

J
Jacquard fabric
A fabric woven on a jacquard loom, where the patterning mechanism allows individual control on any interlacing of up to several hundred warp threads or a rib-based, double jersey weft-knit structure which shows a figure or design in a different colour or texture. Jacquard fabrics are sub-divided into flat-jacquard and blister fabrics.
Jersey
General term used for any knitted fabric.
Jute
Natural vegetable bast fibre, the plant from which the bast jute fibre is obtained.

K
Kemp
Coarse fibres present in varying amounts in wool fleece. Usually white, black or brown and can be used to give decorative effects in some wool fabrics.
Knickerbocker yarn
Fancy yarn characterised by random flecks or spots of differently coloured fibres.

L
Lawn
Fine, plain weave fabric, traditionally of cotton on linen.
Linen
Natural vegetable bast fibre obtained from the flax plant.
Lambswool
Wool from the fleeces of lambs (young sheep up to the age of weaning).
Lamé
A general name for fabrics where metallic threads are a conspicuous feature.

M
Maquisette
Square-hole, warp knitted net.
Merino Wool
Wool from the merino sheep, which produces the shortest and finest wool fibres.
Mohair
Natural animal hair fibre from the angora or mohair goat.
Moiré
Fabric which shows a moiré or wavy watermark pattern. This is produced by calendaring, usually on a fabric showing a rib or cord effect in the weft direction. The moiré effect can be achieved by embossing with a roller engraved with a moiré pattern, or by feeding two layers of fabric face to face through the calendar. the effect may be permanent or temporary depending on the fibres and the chemicals used.
Moquette
Firm, woven warp-pile fabric where the pile yarns are lifted over wires, which may or may not have knives. Withdrawal of the wires will give a cut or an uncut pile. Used for upholstery, particularly on public transport vehicles.
Mousseline
General term for very fine, semi-opaque fabrics, finer than muslins, made of silk, wool or cotton.
Muslin
Lightweight, open, plain or simple leno weave fabric, usually made of cotton.

N
Narrow Fabric
Any fabric that does not exceed 45 cms in width (in the UK). In the USA and Europe, the accepted upper width is 30 cms. Ribbons, tapes, braids and narrow laces are included in this category.
Natural Fibre
A textile fibre occuring in nature, which is animal, vegetable or mineral in origin.
New wool
Fibre from a sheep or lamb that has not previously been used. Alternative name for virgin wool.
Nylon
Man made synthetic polymer fibre. Alternative name for polyamide.

O
Organdie
Lightweight, plain weave transparent fabric, with a permanently stiff finish.
Organza
A sheer, lighweight, plain weave fabric, with a relatively firm drape and handle, traditionally made from the continuous filament of silk yarns. Now often made using other fibres.

P
Polyester
Man made synthetic polymer fibre.
Pure Silk
Silk in which there is no metallic or other weighting of any kind, except that which is an essential part of dyeing.

R
Raw Silk
Continuous filaments containing no twist, drawn off or reeled from cocoons. The filaments are unbleached, undyed and not degummed.

S
Sateen
Woven structure where the maximum amount of weft shows on the face. The smooth effect is enhanced by using filament yarns and/or lustrous fibres.
Satin
Woven structure where the maximum amount of warp shows on the face. The smooth effect is enhanced by using filament yarns and/or lustrous fibres.
Silk
Natural animal protein fibre obtained from the cocoons produced by silkworms.
Silk Noil
Very short silk fibres extracted during silk combing that are too short for producing spun silk. These fibres are usually spun into silk-noil yarns.
Slub yarn
Fancy yarn characterised by areas of thicker, loosely twisted yarn alternating with thinner, harder twisted areas.
Spun silk
Staple fibre silk yarn produced from silk waster which has been largely degummed.
Synthetic
Describes a substance which has been manufactured by building up a complex structure from simpler chemical substances.

T
Taffeta
Plain weave, closely woven, smooth, crisp fabric with a slight weftways rib, originally made from continuous filament silk yarns. Now often made using other fibres.
Terry-Towelling
A woven warp-pile fabric where the loops are formed by applying a high tension to the ground warp and a very low tension to the pile warp. Beating-up does not occur on every pick, so that when a pick is beaten-up it causes the other picks to be moved into the main body of the cloth, at the same time forming the pile loops on the face and back of the cloth.
Thrown Silk
Yarn twisted from continuous filament silk.

V
Velour
Cut pile weft or warp knitted fabric.
Velvet
Cut warp-pile fabric, in which the cut fibrous ends of the yarns from the surface of the fabric. Many effects are possible, e.g. the pile may be left erect, or it may be laid in one direction during finishing to give a very high lustre.
Viscose
Man made natural polymer regenerated cellulose fibre.
Voile
Plain weave, semi-sheer, lightweight fabric made with fine, fairly highly twisted yarns. Originally made from cotton, now other fibres are sometimes used.

W
Wadding
Lofty sheet of fibres used for padding, stuffing or packing.
Wet spun
Describes man made filaments produced by wet spinning, where the dissolved polymer is converted into filaments by extrusion through the spinneret into a coagulating bath of chemicals, causing the filaments to solidify.

Source Credit: R Haworth

Luxury Cashmere Throws & Blankets: Why is cashmere the best wool?

Luxury Cashmere Throw
Luxury Cashmere Throws

We would always recommend 100% Cashmere Wool for luxury throws.
Cashmere wool is made from the fibres of the undercoat of the cashmere goal (capra hircus laniger). The fibres are extremely fine, not exceeding 19 microns. To ensure that the high quality undercoat fibres are used a criterion exists to ensure that 97% of the fibres are below 30 microns.
Cashmere wool thus feels ‘fine’, is lightweight and provides good insulating properties without the weight typified by other wools for the same degree of warmth.

No other commercially available wool offers as high a level of quality as cashmere.

So to ensure the best quality Cashmere Throw it is important to specify 100% Cashmere Wool – neither a blend nor any other wool is as good.

Click <here> for further information on Luxury Cashmere throws.

Fabric Abbreviations and Textile Label Codes: A Complete Reference for Interior Designers

Fabric Abbreviations and Textile Label Codes: A Complete Reference for Interior Designers

Two separate systems: Fabric labels carry both fibre composition abbreviations (WO for wool, CO for cotton, PES for polyester) and cleaning code abbreviations (W, S, WS, X). They are different systems with different purposes.
Most searched: WS, WV, WP, PA, CV, EA — these are fibre composition codes, not cleaning codes. WS means cashmere goat; it is not the cleaning code for water-soluble cleaning.
Cleaning codes: W means water-based cleaning. S means solvent or dry cleaning only. WS means either method. X means vacuum or brush only — no liquid cleaning.
European standard: ISO 2076 defines the standard fibre abbreviations used across the EU. Some Italian and European variants differ from the ISO codes.

Fabric labels on upholstery textiles, curtain fabrics, and soft furnishings carry two distinct types of abbreviated code: fibre composition codes declaring what the fabric is made from, and cleaning codes declaring how it should be maintained. Understanding the difference between the two systems, and knowing what each code means, is a practical daily requirement for any interior designer or specifier. This reference covers both systems in full.


Fibre Composition Abbreviations

Fibre composition abbreviations on fabric labels follow ISO 2076, the international standard for textile fibre names. The codes below are the standard abbreviations used across the UK and EU. All EU fabrics must carry a label declaring fibre content by percentage using these codes.

Natural Protein Fibres

WO — Wool. Fleece of the domestic sheep.

WV — Virgin wool. Wool that has not previously been processed into a textile product. Distinct from recycled or reclaimed wool. Also written as New Wool on British labels.

WP — Alpaca wool. Fleece of the alpaca. In some Italian labelling WP also indicates baby alpaca specifically.

WL — Llama wool.

WS — Cashmere. Fibre from the undercoat of the cashmere goat, known in German as Kaschmir and in French as Cachemire. WS appears on cashmere fabric and cashmere throw labels as the fibre composition code. It is not a cleaning code.

WM — Mohair. Fleece of the Angora goat. Used in mohair velvet upholstery fabric and mohair knit fabrics.

WK — Camel hair.

WA — Angora wool. Fibre from the Angora rabbit. Distinct from WM (mohair, which is from the Angora goat).

SE — Silk. Natural protein fibre produced by the silkworm. In German the word for silk is Seide, hence SE.

Natural Cellulosic Fibres

CO — Cotton. The most widely used upholstery and curtain fibre globally.

LI — Linen (flax). Bast fibre from the flax plant. Also known by its German name Leinen or French lin.

HA — Hemp. Bast fibre from the cannabis plant. In German Hanf.

JU — Jute. Bast fibre, typically used in hessian and backing fabrics.

SI — Sisal. Leaf fibre from the agave plant.

CR — Coir. Coconut fibre used in matting and some backing applications.

Man-Made Fibres from Natural Sources

CV — Viscose (also known as rayon). Regenerated cellulosic fibre made from wood pulp. Widely used in fabric linings, velvet piles, and blended upholstery fabrics. Also written as VI on some Italian labels.

CMD — Modal (also known as polynosic). A modified form of viscose with higher wet strength.

CLY — Lyocell. Regenerated cellulosic fibre produced in a closed-loop solvent process. Sold under the brand name Tencel by Lenzing AG.

CA — Acetate. Cellulose acetate, a semi-synthetic fibre with a silky handle. Not suitable for FR treatment at significant proportions.

CTA — Triacetate. Similar care and treatment limitations to CA.

CUP — Cuprammonium (cupro). Used in some luxury linings and smooth-handle fabrics.

Synthetic Fibres

PES — Polyester. The most widely used synthetic fibre globally. Trevira CS is a permanently flame-retardant variant of polyester.

PA — Polyamide (nylon). In some European labelling also appears as NY.

PAN — Acrylic (polyacrylonitrile). Not suitable for FR treatment. Solution-dyed acrylic such as Sunbrella is the standard for outdoor and marine upholstery. In Italian labelling sometimes abbreviated as PM.

PP — Polypropylene. Not suitable for FR treatment.

PUR — Polyurethane. Used in stretch fabrics and as a bonding layer in coated or laminated textiles.

EL — Elastane (also known as spandex or Lycra). Also written as EA on some Italian labels.

MT or ME — Metallic fibre.

AF — Other fibres not otherwise classified.

Common Italian and European Label Variants

VI — Viscose (equivalent to CV in ISO standard).

EA — Elastane (equivalent to EL in ISO standard).

PM — Acrylic or polyester (context-dependent in Italian labelling).

PC — Acrylic (polyacrylonitrile, equivalent to PAN).

PBT — Polybutylene terephthalate, a form of polyester used in some technical fabrics.

WP — Baby alpaca in some Italian labelling.


Cleaning Code Abbreviations

Cleaning codes appear on upholstery fabric data sheets and on care labels attached to finished upholstered pieces. They are a separate system from the fibre composition abbreviations.

W — Water-based cleaning. The fabric can be cleaned using water-based cleaning agents and foam upholstery cleaners. This code does not mean the fabric is waterproof — it means water-based products can be applied to the surface without damage.

S — Solvent-based cleaning only. The fabric should be cleaned using dry-cleaning solvents only. Water applied to an S-coded fabric will typically cause watermarks, pile distortion, or shrinkage. Most velvet fabrics — including mohair velvet, cotton velvet, and silk velvet — carry an S code. This is the single most important cleaning code for interior designers to communicate to clients and housekeeping teams.

WS — Either water-based or solvent-based cleaning may be used. Note that WS as a cleaning code is entirely distinct from WS as a fibre composition code (cashmere). The context — care label or fibre content label — determines which meaning applies.

X — No liquid cleaning. The fabric should only be maintained by vacuuming or brushing. No water-based or solvent-based liquid cleaners should be applied.

P — Professional dry cleaning only (used on garment care labels following GINETEX international care symbols).

F — Professional dry cleaning with petroleum-based solvent (GINETEX care symbols).


Understanding WS, WV, and WP: The Most Commonly Confused Abbreviations

Three abbreviations cause consistent confusion because they look like cleaning codes but are fibre composition codes.

WS is cashmere. WV is virgin wool. WP is alpaca or baby alpaca. All three are fibre composition abbreviations defined by ISO 2076. They appear on fabric content labels alongside the percentage of each fibre present — for example, 90% WS 10% SE means 90% cashmere and 10% silk. They have no connection to cleaning instructions.

When a fabric data sheet or care label shows WS followed by a percentage, it is always a fibre content declaration. When WS appears alone on a care instructions line or inside a cleaning care symbol, it is always a cleaning code.


Quick Reference List

  • AB — Abaca
  • AF — Other fibres
  • CA — Acetate
  • CLY — Lyocell / Tencel
  • CMD — Modal
  • CO — Cotton
  • CR — Coir
  • CTA — Triacetate
  • CUP — Cuprammonium / Cupro
  • CV — Viscose / Rayon
  • EA — Elastane (Italian variant of EL)
  • EL — Elastane / Spandex / Lycra
  • HA — Hemp
  • JU — Jute
  • LI — Linen / Flax
  • ME / MT — Metallic fibre
  • PA — Polyamide / Nylon
  • PAN — Acrylic
  • PBT — Polybutylene terephthalate
  • PC — Acrylic (Italian variant)
  • PES — Polyester
  • PM — Acrylic or polyester (Italian variant)
  • PP — Polypropylene
  • PUR — Polyurethane
  • SE — Silk
  • SI — Sisal
  • VI — Viscose (Italian variant of CV)
  • WA — Angora wool
  • WK — Camel hair
  • WL — Llama wool
  • WM — Mohair
  • WO — Wool
  • WP — Alpaca / Baby alpaca
  • WS — Cashmere
  • WV — Virgin wool

Cleaning codes:

  • W — Water-based cleaning safe
  • S — Solvent / dry clean only
  • WS — Water or solvent cleaning safe
  • X — Vacuum or brush only. No liquid cleaning

For fabric care symbols and international care label icons, see our fabric care symbols guide. For cleaning codes by fabric type including mohair velvet and faux leather, see our fabric hand and tactile properties guide. For mohair velvet and upholstery fabric ranges, visit the mohair velvet upholstery page. .

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Suitability of Wool Mohair For Upholstery

We were asked about the suitability of “wool mohair” for upholstery.

There’s probably a little confusion here as wool and mohair both refer to animal hair. Technically mohair is wool; as wool encompasses animal hair from the Caprinae family (ie sheep, goats, llamas and rabbits). Assuming that the question means sheep wool then both could be woven together of course. But then the suitability of those fibres for upholstery really depends on how they are woven.

So neither wool nor mohair in themselves are always suitable for upholstery. It depends on how they are woven. To properly assess any fabrics suitability for upholstery you need to look at the fabrics rub test and its ability to be fire treated.

Pure natural fibres (sheep wool and mohair) are normally exempt from the match test for upholstery but still need to pass the cigarette test (please look elsewhere on this blog for information – or for definitive information look at www.textilesfr.co.uk).the fabric may or may no require treating, you will have to check.

Mohair can have a Martindale/rub test of over 100,000 (e.g. our Mohair Velvet) and so can be suitable for contract upholstery. Whereas one of our 100% sheep wool fabrics has a martindale of 23,000 again making it suitable for upholstery.

So really its probably best to find the Mohair/Wool fabric you like and then find out if that particular one is suitable for upholstery.

Synthetic Dyes and Their Development

If you’re reading this you’ve probably already read my very brief history of natural dyes. The rest of the following discussion is not quite so brief and does get quite technical in a chemical sense but I’ve tried to omit as much of that as possible to make the information accessible to normal readers like you and me.

Within the space of 50 years, mankind had changed almost totally from natural dyes to synthetic ones. Phase 1 of this change was the addition of Chromium. The subsequent, often parallel, phases are discussed below with a bias towards how they apply to fabrics.

The 8 subsequent developments of synthetic dyes from Chromium onwards are:
(1. Chromium)
2. Triphenylmethane dyes
3. Anthraquinone dyes
4. Xanthene and related dyes
5. Azo dyes
6. Reactive dyes
7. Phthalocyanine compounds
8. Quinacridone compounds
9. Fluorescent brighteners

Phase 2: Triphenylmethane dyes

In 1858 Verguin (France) discovers ‘fuchsine’ a rose coloured dye made from aniline and tin chloride. This was the first of a series of dyes later called Triphenylmethanes and this marked the second phase of the growth of the synthetic dye industry. Adding excess aniline made aniline blue. Soon other variations were discovered and the chemistry understood; and before 1900 several hundred colours had been documented.

One problem with these dyes was solubility. That was overcome by the addition of sulphuric acid.

Phase 3: Anthraquinone dyes

In the 1850s and 1860s, the understanding of how carbon is structured (tetravalency) led to scientists being able to plan how chemicals might react before doing the experiments. Alizarin and its derivatives (the anthraquinones) gave a huge number of dyes which constitute the second biggest grouping of dyes.

The addition of sulphur created a group of bright, fast dyes for wool. Indrathone blue, a brilliant blue vat dye, was discovered at the turn of the century and related compounds are still today used as pigments spanning colours from blue to yellow.

Phase 4: Xanthene related dyes

Fluorescein was discovered in 1871 but related discoveries were seldom used with fabrics until the late 1880s when some were used for silk. However, the dyes had poor lightfastness and usage was stopped – only to be re-used 70 years later when they were found to be particularly good on acrylic fibres. Better products have been found since and now only one chemical dye in this class is used commercially (Safranine T).

Phase 5: Azo dyes

These form more than half of the commercial dyes used today.

The key is the reaction of nitrous acid with arylamine and then with phenols and arylamines. This chemical reaction forms part of the production process of 50% of dyes in use today having been used since 1875, firstly for wool.

Methyl- related azo dyes were used extensively up until the 1970s but this has now stopped in many countries as they were carcinogenic.

The discovery of the azo dyes led to the development of a method called ingrain dyeing. Here the dye is ‘made’ within the fabric. Since the process was carried out at around freezing point, some dyes were called ice colours. In 1912 Naphtol was found to form a water-soluble compound with an affinity for cotton, a major step in the development of the ingrain dyes. Naphtol is able to form a great number of possible end colours although many of these are not adequately colourfast.

Other Azo dyes became the most important commercial colourants because of their wide colour range, good fastness properties, and tinctorial strength (colour density), which is twice that of the anthraquinones, the second most important group of dyes. Azo dyes are easily prepared from many readily available, inexpensive compounds and meet the demands of a wide range of end uses. Cost advantages tend to offset the fact that these are less brilliant and less lightfast than the anthraquinones.

Phase 6: Reactive dyes

Reactive dyes are very adaptable and can create a huge number of colours.

The first reactive dyes utilized monoazo for bright yellow and red shades. Adding aniline gave the azo dye used in the first Procion Red.

Dichlorotriazinyl dyes are now produced by more than 30 dye manufacturers since the early patents on these dyes have expired.

With the introduction of reactive dyes, cotton could finally be dyed in bright shades with azo dyes for yellows to reds, with anthraquinones for blues, and with copper phthalocyanines for bright turquoise colours.

Phase 7: Phthalocyanine compounds

Phthalocyanines, the most important chromium derivatives developed in the 20th century being introduced in 1934 and marketed as Monastral Fast Blue B and Monastral Fast Blue G.

Copper phthalocyanine is the most important and can be formed directly on cotton. Although not useful for PET and acrylics, some complexes are utilized with nylon. Chemical bleaching alters the shade to bluish-green and green.

Water-soluble versions were developed later by the introduction of sulphur-based chemicals also producing a direct dye for cotton (Chlorantine Fast Turquoise Blue Gll), the first commercial phthalocyanine dye.

Such colourants all display strong, bright blue to green shades with remarkable chemical stability. These compounds exhibit excellent lightfastness, and their properties are in striking contrast to those of natural pigments that are destroyed by intense light or heat and mild chemical reagents. The high stability, strength, and brightness of the phthalocyanines render them cost-effective, illustrated by the wide use of blue and green labels on many products.

Phase 8: Quinacridone compounds

A second group of pigments developed in the 20th century were the quinacridone compounds. Quinacridone itself was introduced in 1958. Its seven crystalline forms range in colour from yellowish-red to violet.

Phase 9: Fluorescent brighteners

Raw natural fibres, paper, and plastics tend to appear yellowish because of weak light absorption. Bleaching can reduce this but the bleach must be mild to avoid damaging the material. Alternatively, a bluing agent can mask the yellowish tint to make the material ‘appear’ whiter (hence the phrase a ‘bluey whiteness’), or the material can be treated with a fluorescent compound that weakly emits blue visible light. These compounds, also called “optical brighteners,” they are not dyes in the usual sense. The major industrial applications are as textile finishers, pulp and paper brighteners.

Well done for getting this far!

Dyes and Pigments in Fabric

A Brief History of Natural Dyes (Mordants)

A dye is a substance that gives colour to the fabric. Usually in a way such that washing, heating or lighting does not change the colour greatly.

Dyes tend to be carbon-based (ie organic in a chemical sense) whereas pigments are very fine powders ‘dissolved’ in a liquid. Pigments generally give brighter colours and are man-made.

Dyes have existed for at least 4000 years and, before 1850, were almost entirely from natural sources such as plants, trees and lichens but also sometimes from insects. Here are some natural dyes, rarely used today, and their sources:

1. Yellow
Seeds, stems and leaves of the weld plant
The inner bark of the North American oak ‘quercetin’
Dried petals of false saffron (safflower)

2. Red
Crushed insect bodies from Coccus (cochineal) or it’s distant relation Kermes.

3. Blue
From indigo or woad

4. Purple
From the medium-sized predatory sea snail ‘commonly’ known as Murex.

5. Black
From the middle wood of the Logwood tree. This is still used today to dye silk and leather and is combined with Chromium. I have written other articles about how this ‘natural’ dye is one of the most damaging to the environment because of the use of chromium.

The art of the dye was historically a closely guarded secret with practitioners having their formulae to produce the colours and to retain them by the addition of various metal salts.

Cotton could not be directly dyed whereas wool and silk could. To add a dye to cotton the cotton had to be first treated with salts made from aluminium (red), magnesium (violet), tin, calcium (purple-red), copper, barium (blue) and iron (black-violet) and then dyed. These salts are called mordants.

The Start Of Synthetic Dyes

In the 1850s Chromium was found to give superior dye retention and so started the decline of the natural dye. Chromium mordants are still widely used for wool and less so for silk and nylon.

More precisely, the first commercially successful dye was ‘mauve’ discovered in England in 1856 and taken to market the following year. It was only sold for about 7 years but that was sufficient to start the dramatic decline of natural dyes and the investment in the science for newer and better dyes.

The Chromium discovery meshed well with the Industrial Revolution. The massively growing textile industry in Europe required a cheap and predictable manufacturing process. Natural dyes and mordants could require up to 20 steps in production, the colour could be variable and the dyes had to be transported unreliably from around the world. Because of these factors and the development of chemical science, it is easy to see how by-products of coal tar extraction & coke production, abundant in Europe, became the foundation of the modern dye industry.

By 1900 nearly 90 per cent of industrial dyes were synthetic.

Pre-war (WWI) Germany dominated the commercial dye market accounting for 90% of all output. Many German scientists worked with distilled chemicals from coal tar, an abundant by-product of the industrial revolution at the time. The German success was probably due to their investment in the scientific method and in training scientists themselves. Some further ‘by-products’ of the research include aspirin and saccharin.

After WWI the industry gravitated to Britain (ICI), the USA and Switzerland, also moving away from coal tar to petroleum-based research.

Perhaps only now with the ‘green’ movement are we seeing a resurgence of interest in natural dyes. KOTHEA cautions the environmentally-conscious reader to look carefully at claims of dyes to be natural. Whilst they may well be made from natural materials the processes used along the way can be VERY damaging to the environment.