Yaa Essential Price Together With Definition Of Dyeing (Part-2)
Wednesday, 19 December 2018
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Dyeing Glossary | Essential Terms together with definition of Dyeing (Part-2)
Rana Sohel
Production Officer (Dyeing)
Sunman Textile Mills Ltd. Chittagong
Cell: +8801912-420118
Email: rsohel07tex@gmail.com
Production Officer (Dyeing)
Sunman Textile Mills Ltd. Chittagong
Cell: +8801912-420118
Email: rsohel07tex@gmail.com
Introduction:
In previous purpose of dyeing terms, nosotros induce got discussed nearly importance of dyeing glossary together with its application. In this purpose nosotros volition verbalise over on to a greater extent than dyeing terms together with definition. Which are rattling usable inward pupil together with project life.
Indigo: Originally a natural blueish vat dye extracted from plants, specially the indigofera tinctoria plant. Most indigo dyes today are synthetic. They are oft used on dungarees together with denims.
Ingrain dye: A colorant, which is formed, inward situ, inward the substrate past times the evolution together with coupling of 1 to a greater extent than intermediate compounds. The term was originally used for colorants obtained from oxidation bases together with past times azoic techniques, but is straightaway reserved for other types of colorant formed inward situ.
Inhibitor: Influenza A virus subtype H5N1 center that retards or prevents a chemic or physical change. In textiles, a chemic agent that is added to foreclose fading, degradation, or other undesirable effects.
Isoelectric: Same accuse inward a sure enough condition. When positive together with negative charges are equal. The isoelectric signal is pH value at which the molecule carries no electrical accuse or the negative together with positive charges are equal.
Isotherm: Constant temperature business used on graphs of climatic weather condition or thermodynamic relations, such equally pressure-volume relations at constant temperature.
Jet dyeing machine: Influenza A virus subtype H5N1 high-temperature piecedyeing machine that circulates the dye liquor through a Venturi jet, thence imparting a driving strength to motility the fabric. The fabric, inward rope form, is sewn together to shape a loop.
Kier: Influenza A virus subtype H5N1 large metallic element tank, capable to beingness heated uniformly, used for moisture processing.
Kier boiling: Process of boiling cellulosic materials inward alkali metal liquors inward a kier at or higher upward atmospheric pressure.
Laboratory sample: A share of stuff taken to correspond the lot sample, or the master stuff together with used inward the laboratory equally a source of attempt specimens.
Leuco dye: A soluble, reduced shape of a dye from which the master dye may live regenerated past times oxidation.
Liquor ratio: In moisture processing the ratio of the weight of liquid used to the weight of goods treated.
Lot: A unit of measurement of production or a grouping of other units or packages that is taken for sampling or statistical examination, having 1 or to a greater extent than mutual properties together with beingness readily separable from other similar units.
Metal-complex dye: Influenza A virus subtype H5N1 dye having a coordinated metallic element atom inward its molecule. Unless the term metal-complex dye is used inward straight association amongst a item application shape of dye, e.g. metal-complex disperse dye or metal-complex reactive dye, its occupation is inexact together with inadvisable.
Migration: Movement of an added center (e.g. dye or alkali) from 1 surface area to textiles to another. Commonly used to limited the crusade of color from the dyed surface area to the undyed surface area of cloth.
Mock Dyeing: A oestrus stabilization procedure for yarns. The yarns are injure onto packages together with subjected to bundle dyeing weather condition (water, pressure, temperature) but without dye an chemicals inward the bath.
Mordant: Influenza A virus subtype H5N1 chemic used inward roughly textile fibers to render affinity for dyes. Or a substance, usually a metallic element compound, applied to a substrate to shape amongst a dye a complex which is retained past times the substrate to a greater extent than firmly than the dye itself.
Mordant dye: A dye that is fixed amongst a suitable mordant.
Natural Dyes: Dyes made from natural substances, usually from the bark, leaves, roots, flowers, or woods of a plant. There are also insects, notably cochineal together with lac, that create dyes.
Optical Brightener: Influenza A virus subtype H5N1 colorless compounds that, when applied to fabric, absorbs the ultraviolet radiations inward low-cal but emits radiations inward the visible spectrum.
Over Dye: When 1 dye is dyed over another. Indigo is often used equally an over dye. This term is sometimes used for dyeing over naturally colored fibers.
OWB: On the weight of bath.
OWF: On the weight of fabric/fibre
OWG: On the weight of goods.
OWV: On the weight of value.
Pad: A machine for impregnating fabrics amongst chemicals. It consists essentially of a trough followed past times 2 or to a greater extent than pairs of crush rolls.
pH: Value indicating the acidity or alkalinity of a material. It is the negative logarithm of the effective hydrogen ion concentration. Influenza A virus subtype H5N1 pH of 7.0 is neutral; less than 7.0 is acidic; together with to a greater extent than than 7.0 is basic.
Pick-up: % or weight added per unit of measurement weight of fabric.
Pigment: A center consisting of modest particles that is insoluble inward the applied medium & is used primarily for its coloring properties.
Pigment printing: In paint printing insoluble pigments which induce got no affinity for the fibres are fixed on the textiles amongst binding agent inward the pattern required.
Premetallized acid dye: An acid dye manufactured past times reacting an equivalent of a suitable metallic element ion amongst 1 equivalent of a dye, or amongst 2 equivalents of the same or dissimilar dyes, capable of chelating the metal.
Preparation: In textile manufacturing, those processing operations performed on greige fabric, colored fabric, textile yarns or fibers to ready them for dyeing, printing or finishing. For example, typical greige cotton fiber stuff grooming includes singeing, desizing, scouring, bleaching together with (optionally) mercerizing.
Reactive dye: Influenza A virus subtype H5N1 dye that, nether suitable conditions, is capable of reacting chemically amongst a substrate to shape a covalent dye-substrate linkage.
Reduction clearing (RC): The removals of unabsorbed disperse dye from the surface of polyester at the halt of the dyeing or printing procedure past times handling inward a sodium hydroxide/sodium hydrosulfite bath. Influenza A virus subtype H5N1 surface-active agent may live employed inward the process.
Retarder (Retardants): Influenza A virus subtype H5N1 chemic that, when added to the dyebath, decreases the charge per unit of measurement of dyeing but does non touching on the concluding exhaustion.
Saponification: Specifically inward relation to manufactured fibers, saponification is the procedure of removing purpose or all of the groups from acetate or triacetate fiber, leaving regenerated cellulose.
Saturation: The maximum intensity or purity of a color. If the color is equally vivid equally possible, it is at saturation; if the color is subdued or grayed, it is dull, weak, together with depression inward intensity.
Scouring: In textile processing, handling of textile materials inward aqueous or other solutions to withdraw nature fats, waxes, proteins together with other constituents equally good equally dirt, stone oil together with other impurities.
Shade: Influenza A virus subtype H5N1 mutual term loosely used to pull broadly a item color or depth, e.g. pale shade, 2% shade, style shade, fashion shade.
Shading: In colored textile fabrics, gradual changes inward hue, chroma and/or lightness lengthwise or widthwise. When unintended, shading is considered a defect; may live international for styling purposes.
Sizing: A generic term for compounds that are applied to warp yarn to bind the fiber together together with stiffen the yarn to render abrasion resistance during weaving, Starch, gelatin, oil, wax together with manufactured polymers such equally polyvinyl alcohol, polystyrene, polyacrylic acid, together with polyacetates are employed.
Soap: Soap is a metallic element tabular array salt of saturated or unsaturated higher obese acid. There may live pb, Mg, Ca or other metallic element salts.
Softener:
- A production designed to impart a soft mellowness to the fabric. Examples are glucose, glycerine, tallow, or whatever 1 of a set out of 4th ammonium compounds.
- A center that reduces the hardness of H2O past times removing or sequestering the calcium together with magnesium ions.
- A center used to trim down friction during mixing together with processing when dry out powders are added to polymers.
Solubilized vat dye: Influenza A virus subtype H5N1 water-soluble tabular array salt of the sulfuric ester of a leuco vat dye. After application to the fiber the nurture vat dye is regenerated past times hydrolysis together with oxidation.
Solvent dye: A dye which is soluble inward organic solvents, but non inward water, together with is widely used inward lacquers, inks, waxes, plastics, soaps, cosmetics, fuels together with colored smokes.
Solvent Dyeing: The occupation of solvents equally dye privy media instead of H2O becomes quite a pop concept, where solvent carries the dye molecules to the interior of fibre & together with so recovered. Introduction of Hydrophobic fibres similar cellulose acetate has pronounced dyeing job equally no synthetic & natural dye at that fourth dimension , are capable of dye it.
Souring: Any handling of textile materials inward dilute acid. Its purpose is the neutralization of whatever alkali that is present.
Space Dyeing: The procedure of applying multiple dyes to damp fiber together with so oestrus setting it, usually past times steaming or baking. Brushes tin displace live used, but tools for pouring or squirting are often to a greater extent than effective.
Substantivity: The attraction, nether the precise weather condition of test, betwixt a substrate together with a dye (or other substance) where the latter is selectively extracted from the application medium past times the substrate.
Substrate:
- In textiles, a fiber, fiber assembly, yarn, stuff or garment to which roughly other stuff is applied.
- Fabric to which coatings or other fabrics are applied. It tin displace live of woven, knit, nonwovens, or weft-insertion construction. Generally, substrate properties are dependent both on fiber type together with stuff construction. Usually the stuff is scoured, heat-set together with otherwise finished prior to coating or bonding. Many smooth-surfaced manufactured fiber fabrics require impregnation amongst a latex prior to coating to ensure adequate adhesion.
Surfactant: An agent, soluble or dispersible inward a liquid, which decreases the surface tension of the liquid contraction of “surface active agent”
Thickener: Thickener is a thick majority which impart stickiness & plasticity to the printing glue so that it may live applied on the stuff surface without haemorrhage or spreading & live capable of maintaining the pattern outline.
Uneven dyeing: A stuff dyeing that shows variations inward shade resulting from wrong processing or dyeing methods or from occupation of faulty materials.
Union dyeing: Influenza A virus subtype H5N1 procedure of dyeing textiles containing fibers having dissimilar dye affinities to attain the appearance of a uniform, homogenous color.
Unlevelness: In textile dyeing together with finishing, non-uniform distribution of a dye or chemic inward or on a substrate.
Vat dyes: Influenza A virus subtype H5N1 water-insoluble dye, usually containing keto groups, which is normally, applied to the fiber from an alkali metal aqueous solution of the reduced enol (Leuco) shape which is afterwards oxidized inward the fiber to the insoluble form.
Wash fastness: Influenza A virus subtype H5N1 stair out of resistance to fading past times laundering. Different dye types are measured at dissimilar temperatures. Wash Fast/Jacquard create dyes are rated at 105F°, piece to a greater extent than washfast dyes types similar Lanaset/Sabraset are rated at 140F°.
Wet pick-up: In textile processing, the amount of liquid, together with stuff carried past times the liquid, applied to a textile. Wet pick-up is usually determined equally a percent of either the dry out or conditioned weight of the textile prior to processing.
Wetting agent: It is a chemic center that increases the spreading & penetrating properties of a liquid past times lowering its surface tension that is the vogue of its molecules to adhere to each other.
What is stain resistance finish: It is the complete to foreclose H2O & or oils from penetrating the stuff using potential aqueous & oily stain to bead upward & ringlet off.
What is reason release finish: Soil release is the term used to pull create clean mightiness of fabrics past times the laundering process.
What is antimicrobial finished: Antimicrobial finish is 1 form of chemic complete which is meliorate stuff durability on diverse substrates, impact on people & their environment, they interact amongst proficient & bad microorganism.
What is textile finishing: Finishing has been defined past times textile instate equally “Descriptive of processes, physical or chemical, applied to a substrate to arrive at a desired effect”. It is chemic or mechanical treatments performed on fibre, yarn or stuff to meliorate appearance, texture, or performance.
What is Calender: A machine inward which heavy roller rotates inward contact nether presser, used to polish & flatten stuff to closed the intersections betwixt the yarns & to confer a surface glaze.
What arrive at you lot hateful past times DP & Curing: DP agency Durable Press OR Permanent press, it is a finishing handling designed to impart to a textile stuff or garments the retentivity of specific contours including defined creases & pleats resistant to normal usage, washing or dry.
Curing is a procedure next application of a complete to textile fabrics inward which appropriate weather condition are used to final result a chemic reaction.
Why foam is used?: In moisture processing technology scientific discipline damage is rattling high mainly due to high consumption of liberate energy which itself is the final result of high consumption of water. The take in of replacing H2O inward the occupation of foam reduces the full processing damage past times reducing these costs- 1. Heating cost. 2. Effluent handling cost. 3. Chemical & dye stuff damage
Wet pick-up: The weight of liquor taken upward past times a given weight of the stuff after impregnation, spraying, or coating element.
Wicking: The passage of liquids along or through a textile stuff or along the interstices formed past times textile chemical element & coating polymer of a coated fabrics.
Wrinkle recovery/resistance: Influenza A virus subtype H5N1 laboratory attempt to stair out angle (degrees) of recovery from wrinkling or creasing.