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1 Basic Dyes
These are dyes that require the assistance of a mordant to make them permanent, when used for cotton dyeing. They are useful for dyeing wool, because the fibre contains acid properties with which the dye combines, but as the combination is not fast, the basic dyes are not much used for wool. -
2 Dyes
The following list gives a general classification of colouring matters for dyeing textile fibres: - Acid Colours dye animal fibres only and have no affinity for cellulose. If union goods are dyed with acid dyes the cotton remains white and the wool is dyed. They dye wool and silk from baths containing Glauber's salt and some acid, hence their name. Acid colours consist principally of the Azo compounds and are fairly cheap, so are used for the dyeing of dress materials, suitings, etc. No preparation of the fabric is necessary prior to dyeing. Wool and silk fabrics ate simply steeped in a warm acidified solution. Azo Dyes - These are colouring matters used for cotton dyeing and are developed direct on to the fibre. Basic Dyes - Cotton has no direct affinity for basic dyes, which consist of colour bases in combination with other chemicals, as tannic acid, sumach, or other tanning substances. Tannic acid is taken up by cotton which will then absorb the basic colours. They are very bright but not very fast. They dye wool and silk direct from plain baths. Developing Colours - See Developing Colours. Direct Cotton Colours - Dye cotton, linen, wool or silk directly, will dye cotton direct but by the addition of various salts deeper shades are obtained. With the addition of a little acid will dye wool and silk. See direct Dyes. Mordant Colours - As a rule these are very fast to washing and mostly fast to; light, such as logwood, black, Turkey red, etc. The mordant forms insoluble compounds with the colours, which are then applied to the fibres so that the insoluble coloured compounds are formed within the fibres The cotton is prepared first with some metallic mordant, as chrome, iron or alumina. Substantive Dyes - Have the property of dyeing fibres direct. They are Direct Dyes, that is they have an affinity for fibres. Sulphur and vat dyes are substantive towards cotton. Sulphur Colours are used for vegetable fibres only. These colours are insoluble in water and require the addition of sodium sulphide which converts them into soluble substances which will dye cotton. Usually fast to washing and alkalis - not so fast to bleaching (see Sulphur Colours). Vat Colours - These are fast dyes for cotton. They are insoluble in water so are converted into a soluble compound by some chemical reducing agent, and then they have a direct affinity for cotton which is dyed when immersed in the solution. There are two main classes, those prepared from anthraquinone and those related to indigo. They will dye viscose and cuprammonium rayons (see Vat Dyes) -
3 Adjective Dyes
Dyes which must be used with mordants. The word adjective applied to dyestuffs means that the fibre has no affinity for them and that a mordant is required to fix the dye on the fibre. Basic and mordant dyes are adjective. -
4 emäksiset väriaineet
• basic dyes -
5 bazne boje
• basic dyes -
6 основно багрило
basic dyebasic dyesБългарски-Angleščina политехнически речник > основно багрило
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7 Immunised Cotton
A chemically-treated cotton that resists ordinary cotton dyes, but has a marked affinity for basic dyes and some acid dyes. Fabrics in which this yam is used together with ordinary cotton yarns when dyed with direct or other cotton dye will give white effects on the immunised cotton, thereby yielding two-colour effects. The yarn can be used with wool, silk, linen, viscose, acetate and other fibres as effect threads. This chemical treatment produces a yarn differing greatly from ordinary cotton - the fibres shrink, lose lustre and become almost cylindrical. -
8 основные красители
Textile: basic dyesУниверсальный русско-английский словарь > основные красители
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9 лежать в основе
•The basis for the antibacterial effects of dyes is their ability to...
•Behind the Mullard invention is the notion that...
•Central to the theory is...
•Movement of charged particles in a magnetic field also forms (or constitutes) the basis for mass spectrometry.
•These equations form the basis (or foundation) of the theory of...
•These theories form (or provide) the foundation for (or are at the basis of) colour television.
•It is this form that provides the basis (or is fundamental) for a wide variety of TV antennas.
•Let us consider the physical conditions that underlie the Sun's magnetism.
•Boolean algebra underlies the theory of relations.
•Microcomputers are at the heart of "transaction" telephones for checking customers' credit.
•The general rule that the forces between two particles result from an exchange of other particles is basic to much of our present understanding of elementary-particle interactions.
•This distinction between electricity and magnetism is at the heart (or root) of the theory of...
•The Periodic Table provides the framework for the whole study of inorganic chemistry.
•Thermochemistry is basic to the study of chemical bonding.
•An understanding of dye laser operation is a building block for understanding the principles of other tunable laser systems.
•These interrelations are the heart of hydrodynamics.
•The chapter describes the fundamental physics that gives rise to the behaviour of the single junction and the transistor as circuit elements.
•The nature of energy lies at the heart of the mystery of our existence.
•This reaction is the basis for the cyanamide process for...
Русско-английский научно-технический словарь переводчика > лежать в основе
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10 лежать в основе
•The basis for the antibacterial effects of dyes is their ability to...
•Behind the Mullard invention is the notion that...
•Central to the theory is...
•Movement of charged particles in a magnetic field also forms (or constitutes) the basis for mass spectrometry.
•These equations form the basis (or foundation) of the theory of...
•These theories form (or provide) the foundation for (or are at the basis of) colour television.
•It is this form that provides the basis (or is fundamental) for a wide variety of TV antennas.
•Let us consider the physical conditions that underlie the Sun's magnetism.
•Boolean algebra underlies the theory of relations.
•Microcomputers are at the heart of "transaction" telephones for checking customers' credit.
•The general rule that the forces between two particles result from an exchange of other particles is basic to much of our present understanding of elementary-particle interactions.
•This distinction between electricity and magnetism is at the heart (or root) of the theory of...
•The Periodic Table provides the framework for the whole study of inorganic chemistry.
•Thermochemistry is basic to the study of chemical bonding.
•An understanding of dye laser operation is a building block for understanding the principles of other tunable laser systems.
•These interrelations are the heart of hydrodynamics.
•The chapter describes the fundamental physics that gives rise to the behaviour of the single junction and the transistor as circuit elements.
•The nature of energy lies at the heart of the mystery of our existence.
•This reaction is the basis for the cyanamide process for...
* * *Лежать в основе -- to be at the heart of, to lie at the heart of; to be at the root of; to be at the basis of, to form the basis of, to form the basis for; to form the foundation for; to underlieInference is al the heart of both language understanding and language generation.An accurate determination of primary flowrate lies at the heart of any turbine acceptance test.It is this particular approach that forms the basis of the dynamic testing technique described in this paper.Suppose that a single predicate underlies part of the meaning of each of the following sentences. (... лежит в основе части значения...)Русско-английский научно-технический словарь переводчика > лежать в основе
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11 אינדמין
indamine, any of a number of basic organic compounds which form blue and green dyes (Chemistry) -
12 Marine Fibre
Poseidonia Australia, obtained from the bottom of Spencer's Gulf in South Australia. The fibre is not very strong and is brittle when dry. It is believed to be New Zealand flax submerged and rotted in salt water. It has good affinity for basic dye-stuffs, but acid, salt and sulphur dyes produce poor results. This fibre is a recent discovery and has been experimented with as a wool substitute for cheap clothing and rugs, but no satisfactory results have been obtained as yet.
См. также в других словарях:
basic dyes — Dyes that are cationic, or have positively charged groups, and bind to negatively charged cell structures. Usually sold as chloride salts … Dictionary of microbiology
basic dye — n any of various chiefly synthetic dyes that react as bases, produce clear brilliant colors, and are used esp. as histological stains * * * cationic dye a dye that is basic in reaction and unites with negatively charged ions of material acted… … Medical dictionary
basic dye — noun a dye that is considered to be a base because the chromophore is part of a positive ion • Syn: ↑basic color, ↑basic colour • Hypernyms: ↑dye, ↑dyestuff * * * noun or basic color … Useful english dictionary
List of dyes — This article is a list of chemical dyes. For natural dyestuffs, see Glossary of dyeing terms. List of dyes with Colour Index International generic names and numbers. Common name Synonyms C.I. generic name C.I. number Alcian yellow GXS Sudan… … Wikipedia
azo dyes — azo dyes, a large group of synthetic dyes containing the grouping R N:N R, a basic structure of two atoms of nitrogen and two radicals of the benzene or naphthalene series, which can form subsequent, complex structures having a variety of dyeing… … Useful english dictionary
Fibres and Dyes — ▪ Table fibres application classes Natural fibres Animal Wool acid, basic, mordant, reactive, (solubilized vat) Wool blends (wool cotton, acid, direct, mordant, reactive wool viscose, etc.) Silk acid, basic, direct, mordant, (reactive) … Universalium
dye — dyable, dyeable, adj. dyer, n. /duy/, n., v., dyed, dyeing. n. 1. a coloring material or matter. 2. a liquid containing coloring matter, for imparting a particular hue to cloth, paper, etc. 3. color or hue, esp. as produced by dyeing. 4. of the… … Universalium
stain — 1. To discolor. 2. To color; to dye. 3. A discoloration. 4. A dye used in histologic and bacteriologic technique. 5. A procedure in which a dye or combination of dyes and reagents is used to color the constituents of cells and tissues. For… … Medical dictionary
fibre, man-made — Introduction fibre whose chemical composition, structure, and properties are significantly modified during the manufacturing process. Man made fibres are spun and woven into a huge number of consumer and industrial products, including… … Universalium
dye — A stain or coloring matter; a compound consisting of chromophore and auxochrome groups attached to one or more benzene rings, its color being due to the chromophore and its dyeing affinities to the auxochrome. Dyes are used for intravital… … Medical dictionary
Dye — For other uses, see Dye (disambiguation). Yarn drying after being dyed in the early American tradition, at Conner Prairie living history museum. A dye is a colored substance that has an affinity to the substrate to which it … Wikipedia