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RABBIT HAIR CLOTH fabrics A fabric in which rabbit's hair is used in combination with other fibers to give the material a soft, smooth hand. A fabric in which rabbit's hair is used in combination with other fibers to give the material a soft, smooth hand. Little or much of the rabbit hair may appear on the surface, as desired. It is used in varying percentages with wool and in blend fabrics.
RACCROC STITCH  A stitch used in lace making to join separately made pieces together into a larger piece. A stitch used in lace making to join separately made pieces together into a larger piece. The edges of the smaller pieces are finished with half meshes instead of whole meshes.
RACE I F The cut filling floats of pile that run warpwise in corduroy and velveteen. 1. The cut filling floats of pile that run warpwise in corduroy and velveteen. After the cloth is woven, the races are cut in their center. Later, the cut fibers are brushed up to form an all-over pile, as in velveteen, or cords or wales, as in corduroy.
2. In the loom, the path of the shuttle on the reed.
RACK I In warp knitting, a unit of length measure consisting of 480 courses. In warp knitting, a unit of length measure consisting of 480 courses. On machines with two needle-bars, 480 courses on each set of needles
RACKED STITCH I In weft knitting, a sideways-deflected stitch In weft knitting, a sideways-deflected stitch that lies across a stitch formed in the same course on the opposite needle bed.
RACKING ¡ The movement of one knitting bed of a rib or purl knitting machine relative to the other The movement of one knitting bed of a rib or purl knitting machine relative to the other, either to produce deflections within the fabric being knitted or to re-align the elements for a different structure to that previously being knitted.
Partial racking: Less than one full needle space, may be required to facilitate loop transfer from one bed to the other on a rib machine.
RADDLE F A mechanical device for spreading the warps evenly as they are wound onto the beam. A mechanical device for spreading the warps evenly as they are wound onto the beam. Necessary when the loom is warped from the back to the front.
RADIANT ENERGY o Energy traveling through space in the form of photons or electromagnetic waves of various lengths. Energy traveling through space in the form of photons or electromagnetic waves of various lengths.
RADIO fabrics A soft, lustrous, sheer silk fabric A soft, lustrous, sheer silk fabric made in a plain weave and dyed or printed.
RADIO FREQUENCY HEATING processes, operations The use of dielectric for heating. Also called RF heating. The use of dielectric of frequencies from 3 to 300 MHz for heating.
RADIO PUNCHWORK ¡ Openwork embroidery made with round designs. Openwork embroidery made with round designs.
RADIUM fabrics Plain-weave lustrous fabric Plain-weave lustrous fabric, that has the draping quality of Crêpe but the crispness of Taffeta. The fibers used include silk, viscose, acetate, and triacetate. Used for lingerie, robes, blouses, and as lining fabric. Slippery to handle.
RAFFIA v A fiber obtained from the leaves of the raffia palm 'raphia ruffia'. A fiber obtained from the leaves of the raffia palm 'raphia ruffia'.
RAG PULLING ¡ The reducing of wastes, threads, and fabrics to fibrous form The reducing of wastes, threads, and fabrics to fibrous form by garnetting or by some other process appropriate for waste stock
RAG RUG z A rug made with a weft of rags of cotton or wool torn into strips and tied sewed together at the ends. A rug made with a weft of rags of cotton or wool torn into strips and tied sewed together at the ends. The warp is of heavy cotton. May be handmade or machine-made
RAGLAN SLEEVE z A sleeve with the armhole line extending from the front and back scye to the neck point A sleeve with the armhole line extending from the front and back scye to the neck point so that the shoulder section is joined to the sleeve crown, eliminating the conventional shoulder and sleeve head seams. The term is used in both woven and knitted garment construction.
RAGS I z Shabby or tattered clothing, torn pieces of cloth. Shabby or tattered clothing, torn pieces of cloth.
1. NEW RAGS. The waste fabric, whether or woven or knitted, that is left after a garment has been cut out. The term also covers piece ends and discarded pattern bunches.
2. OLD RAGS. Worn garments etc., that have been discarded.
RAILWAY STITCH  Same as Chain stitch. 1. Same as Chain stitch.
2. In crocheting, same as tricot stitch.
3. See Leviathan stitch.
RAIN GROWN COTTON v Cotton grown under conditions of natural rainfall. Cotton grown under conditions of natural rainfall. The moisture content and rate of growth have a definite influence upon fiber properties and have an effect upon finishing processes such as dyeing.
RAIN TEST I A standard method to measure the resistance of fabrics to the penetration of rain. A standard method to measure the resistance of fabrics to the penetration of rain. Different hydrostatic heads are used to simulate the effects of rainfalls of different intensities. See Water resistance.
RAINBOW EFFECT ¡ An effect produced in calico printing by shading the different colored fields into each other. An effect produced in calico printing by shading the different colored fields into each other.
RAINBOW YARNS v Novelty yarns made in an ombré effect. Novelty yarns made in an ombré effect.
RAINBOWING processes, operations The use of divided color-box in block printing The use of divided color-box in block printing, so that the color is transferred to the block in the form of softly shaded stripes. In French it is called Fondu.
RAINCOAT FABRIC I See Proofed poplin. See Proofed poplin.
RAISED BACKS fabrics A general term for fabrics with nap raised on the back A general term for fabrics with nap raised on the back, especially -cotton fabrics such as flannelette, some pajama fabrics
RAISED CHECKS I A fabric figured with extra warp on a plain ground. A fabric figured with extra warp on a plain ground.
RAISED COLORS ¡ A printing term for colors which are treated after printing A printing term for colors which are treated after printing, in a bath which will fix or develop the color.
RAISED EMBROIDERY processes, operations Needlework with raised patterns done in satin stitch over padding. Needlework with raised patterns done in satin stitch over padding. Used on table and bed linens, scallops and for monograms. Embroidery with figures in high relief is called Stump work.
RAISED FABRIC I See Napped fabric. See Napped fabric.
RAISED FIBER SURFACE I In textile fabrics, intentionally lifted fibers or yarns such as pile, napped, tufted, flocked, or similar surfaces. In textile fabrics, intentionally lifted fibers or yarns such as pile, napped, tufted, flocked, or similar surfaces.
RAISED JERSEY I Term used to describe a medium-weight knit fabric of fairly open texture, that has been brushed on the right side to add warmth and give an attractive fuzzy effect. Term used to describe a medium-weight knit fabric of fairly open texture, that has been brushed on the right side to add warmth and give an attractive fuzzy effect. Often made in random color coordinating yarns. The fiber is usually acrylic as it lends itself particularly well to this kind of treat-ment. Used for soft suits, dresses, and coats.
RAISED POINT I A needlepoint lace with a padded motif to make it stand in relief. A needlepoint lace with a padded motif to make it stand in relief.
RAISING ¡ See Napping. See Napping.
RAISING PLAINS I A plain weave cotton fabric made with hard spun warp and coarse, soft spun filling. A plain weave cotton fabric made with hard spun warp and coarse, soft spun filling.
RAJAH I Soft, strong, plain weave silk fabric with rough texture. Soft, strong, plain weave silk fabric with rough texture. It was first made, not in the Far East, but in the United States. Tussah Silk was normally used, but it is now made from acetate, triacetate, nylon, polyester. It is very similar in appearance and weight to Pongee
RAMBOUILLET v Wool fiber from a breed, which is of the largest and the strongest bodied wool sheep Wool fiber from a breed, which is of the largest and the strongest bodied wool sheep. This is a pure descendant of Spanish merino. Fiber length is 11/2 to 3 inches. Shrinkage averages about 60 %.
RAMIE fibers, filaments, yarns, fabrics yarn. Also known as China-grass, Rhea. It a strong, vegetable bast fiber. Yarn. Also known as China-grass, Rhea. It a strong, vegetable bast fiber. Ramie consists of the bast fibers from the green-leafed ramie ('Bohemeria nivea'), and the white-leafed ramie ('Bohemeria tenacissima'). Lacks flexibility and elasticity. Very lustrous, bleaches to a beautiful white and is extremely durable.
Fabric. Also called China grass and Nettle cloth. An old Chinese fabric woven from ramie fibers. An uneven weave, but a very fine transparent fabric once used a great deal in China as a basis for embroidered table linen. Launders and starches well. Very similar in appearance to Pineapple cloth.
RANDOM DYEING processes, operations A method of dyeing yarn A method of dyeing yarn where the color is applied to small areas in a random manner with some portions in one color and other portions in other color or white. May be done by Tie-dyeing.
RANDOM LINKING ¡ Linking in which, when stitching pieces of fabric together, no attempt is made to stitch through adjacent loops. Linking in which, when stitching pieces of fabric together, no attempt is made to stitch through adjacent loops.
RANDOM RANGE I See Pattern blanket. See Pattern blanket.
RANDOM SAMPLING ¡ The process of selecting units for a sample of size 'n' The process of selecting units for a sample of size 'n' in such a manner that all combinations of 'n' units under consideration have an equal or ascertainable chance of being selected as the sample. Same as Simple random sampling and Sampling at random.
RANDOM SHEAR I The pile of a rug which has been cut (sheared) so that the pile is in varied, random lengths. 1. The pile of a rug which has been cut (sheared) so that the pile is in varied, random lengths. This kind of texture is intended to ensure a bright lustre and soil-hiding properties.
2. A planned shearing or clipping of loops in parts of a textured effect. May be called sculpturing as in carpeting, velvet, velveteen and some silk fabrics. Clipped loops in some parts of a motif and un-cut loops in other parts gives a richness of texture to the cloth, particularly for eveningwear.
RANDOM SLUB v A slub yarn with the thick places in a variety of lengths and thicknesses and distributed at random in the yarn A slub yarn with the thick places in a variety of lengths and thicknesses and distributed at random in the yarn
RANDOM WINDING ¡ A method of winding cones and cheeses A method of winding cones and cheeses in which the angle of wind is constant and the wind decreases as the package diameter increases.
RANDOM YARN v A novelty yarn 1. A novelty yarn made by twisting one colored strand around a different colored core.
2. Sometimes applied to varicolored yarn.
RAPID AGER F See under Ageing. See under Ageing.
RAPIER apparatus, equipage, tools A device for inserting filling A device for inserting filling from the side of the loom during weaving.
RAPIER LOOM F See under Shuttleless looms. See under Shuttleless looms.
RAS I A general term in French used for plain weave solid colored fabric made with nap A general term in French used for plain weave solid colored fabric made with nap. Commonly made in wool.
RASCHEL KNIT fabrics Name of this type of knitted fabric derived from the name of the machine on which this is produced. The Raschel machine uses latch needles set in a vertical plane Name of this type of knitted fabric derived from the name of the machine on which this is produced. The Raschel machine uses latch needles set in a vertical plane and produces a wide variety of fabrics, particularly heavier and complex structures. Fabrics are not of conventional knit construction, but appears to be partly woven in texture. These fabrics are often printed; and some are very transparent; they have some 'give', but only a little, are attractive, wear well and do not crease. The fiber content is polyester. Used for blouses, dresses, curtains, bedspreads, depending on design. See also under Knitting.
RASMUSSEN PROCESS processes, operations A technique of making a bonded-fiber fabric A technique of making a bonded-fiber fabric. A sheet of polyethylene or polypropylene is stretched lengthwise to orient its molecular chains. When disintegrated into fibrous form, the fine fibers are relatively parallel to each other. Two or three layers of fibers are spot-welded together.
RAT-TAIL CORD w Also called American cord Also called American cord. A tubular woven cord usually of satin construction.
RATCHET LOCK SLIDER F In zippers, a slider with a locking mechanism In zippers, a slider with a locking mechanism that permits the slider to slip along the chain upon application of a predetermined force so as to prevent damage that would impair either the service or use of either the slider or chain.
RATE OF DYEING ³ The rate at which a dye is absorbed The rate at which a dye is absorbed by a substrate under specified conditions.
RATINÉ I French word meaning 'fuzzy'. A rough, pebbly woolen fabric made of novelty yarns with a fancy twist, and similar in finished appearance to Chinchilla. French word meaning 'fuzzy'. A rough, pebbly woolen fabric made of novelty yarns with a fancy twist, and similar in finished appearance to Chinchilla.
Plain weave with an uneven surface due to the use of fancy yarns usually of the spiral or loop type. These give a randomly uneven surface effect varying in coarseness according to the weight of fabric. Used for men's overcoats. Basically this is a coating fabric but dress or suiting weights can be made.
RATINÉ LACE I Machine-made lace, the groundwork of which consists of heavy loops rather than mesh. Machine-made lace, the groundwork of which consists of heavy loops rather than mesh.
RATINÉ YARN fibers, filaments, yarns A curly knotty plied yarn A curly knotty plied yarn made with one heavy and one or more fine single yarns twisted together under uneven tension; the heavy yarn is fed more freely, producingloops or nubs.
RATING w ¡ A quantitative or qualitative scale for evaluation of a specific property. 1. A quantitative or qualitative scale for evaluation of a specific property.
2. The process for determining or assigning a grade to a material by comparing it to a standard ref-erence scale.
RAVEL COURSES ¡ See Roving courses. See Roving courses.
RAVELING v ¡ A loose yarn that has been partially or wholly detached from a cloth. A loose yarn that has been partially or wholly detached from a cloth.
The process of removing the yarns consecutively from the fabric.
RAVENSDUCK I A very heavy linen fabric in 2/1 twill weaves, such as a sailcloth. A very heavy linen fabric in 2/1 twill weaves, such as a sailcloth.
RAW general textile materials in their natural state. Term applied to textile materials in their natural state.
RAW COTTON v Ginned lint that has not been subjected to any textile manufacturing process. Ginned lint that has not been subjected to any textile manufacturing process. See also Ginned lint.
RAW EDGE I Unfinished edge of a fabric, which may ravel. Unfinished edge of a fabric, which may ravel.
RAW SEAM  A visible line made by joining two parts of a fabric A visible line made by joining two parts of a fabric by placing two cut (raw) edges of fabric together and stitching them.
RAW SILK v Continuous filaments or strands containing no twist, Continuous filaments or strands containing no twist, as it has been reeled from silk cocoons.
RAW STOCK v Unprocessed fiber in the natural state. Unprocessed fiber in the natural state. See Raw.
RAW STOCK DYEING ¡ The process of dyeing fibers in a mass before spinning or weaving. The process of dyeing fibers in a mass before spinning or weaving.
RAW WOOL v Wool or hair of the sheep in the grease, pulled, or scoured state. Wool or hair of the sheep in the grease, pulled, or scoured state.
RAWKINESS defects Streakiness in a fabric Streakiness in a fabric due to uneven, irregular yarns.
RAYLEIGH I Irregular bars in guipure lace Irregular bars in guipure lace
RAYON FIBER v The earliest man-made fiber, from cellulose such as wood or cotton. 1. The earliest man-made fiber, from cellulose such as wood or cotton.
A manufactured fiber composed of regenerated cellulose, as well as manufactured fibers composed of regenerated cellulose in which substituents have replaced not more than 15 % of the hydrogens of the hydroxyl groups.
This definition includes three types of regenerated cellulose fiber, Viscose, Modal and Cupro.
2. The term Rayon is used in some manufacturing countries for any manufactured cellulose fiber, including, in some cases, fibers composed of cellulose acetate.
RAYON FIBRE fibers, filaments, yarns man-made fiber, from cellulose such as wood or cotton 1. The earliest man-made fiber, from cellulose such as wood or cotton. A manufactured fiber composed of regenerated cellulose, as well as manufactured fibers composed of regenerated cellulose in which substituents have replaced not more than 15 % of the hydrogens of the hydroxyl groups. This definition includes three types of regenerated cellulose fiber, Viscose, Modal and Cupro. 2. The term Rayon is used in some manufacturing countries for any manufactured cellulose fiber, including, in some cases, fibers composed of cellulose acetate
RAYON STAPLE v Short rayon fiber of spinnable length manufactured directly or by cutting large groups of continuous filaments. Short rayon fiber of spinnable length manufactured directly or by cutting large groups of continuous filaments. Generally measures to 1 to 20 denier and is usually produced in lengths of 1 to 5 inches. Spun into yarns of different textures and sizes. Often it is blended with natural and other man-made fibers. In general, the lengths and thicknesses are comparable with natural fibers. Rayon staple does not include cut rayon waste
RAYON STRAW v A ribbon-like filament of viscose rayon. A ribbon-like filament of viscose rayon. It is folded and resembles straw.
RAYON TOW v A tow composed of parallel filaments of continuous lengths A tow composed of parallel filaments of continuous lengths, which will be used for processing into yarns by any of several tow-conversion methods. It is also used for flock.
RAYON-HP v High performance, or improved kinds of rayon. High performance, or improved kinds of rayon. These types will include high tenacity and high-wet modulus
RAZ I Solid colored wool serge Solid colored wool serge
RE v See Residual Elongation. See Residual Elongation.
RE-ANIMALIZING ¡ A process which was used for weighting silk A process which was used for weighting silk and supposedly to strengthen the fiber by immersion in a bath containing phosphate of soda with glue or casein.
RE-EMBROIDERED LACE I Flat lace that has been re-worked with another intricate design using a variety of threads. Flat lace that has been re-worked with another intricate design using a variety of threads. An elaborate and expensive fabric, due to the two operations involved.
REACTION SPINNING processes, operations A process of fiber production A process of fiber production in which polymerization is achieved during the extrusion of one set of reactants into another set of reactants.
REACTIVE DYES ³ These are dyes that, under suitable conditions, are capable of reacting chemically with cellulose fibers. These are dyes that, under suitable conditions, are capable of reacting chemically with cellulose fibers. This produces a covalent dye-fiber bond, which gives dyeings and prints of excellent washing fastness. May be used on wool, silk and nylon with varying degrees of fastness properties. The differences in reactivity of different shades of dyes are indicated, usually by using different letters, e.g. 'Procion M' (more reactive) and 'Procion H' (less reactive) dyes. Reactive dyes are suitable for cotton, linen, wool, silk, viscose rayon, and cuprammonium rayon fibers.
REAVY YARN v A yarn made by twisting together a single and two-ply yarn A yarn made by twisting together a single and two-ply yarn. Also see Reamy yarn.
RECESS SHEARING ¡ See Hollow-cut velveteen. See Hollow-cut velveteen.
RECLAIMED TEXTILE FIBERS v A broad term which includes: extract wool, mungo, noil, reprocessed wool, reused wool, shoddy, etc. A broad term which includes: extract wool, mungo, noil, reprocessed wool, reused wool, shoddy, etc.
RECLAIMED WOOL v This broad term implies wool obtained from various sources This broad term implies wool obtained from various sources; clippings, reprocessed wool, shoddy, mungo, extract wool, etc.
RECLINING TWILL fabrics A twill weave A twill weave which produces a twill line running at an angle less than 45°.
RECOMBING ¡ A second combing of worsted tops for removing vegetable particles that were not removed by the first combing. A second combing of worsted tops for removing vegetable particles that were not removed by the first combing. This process improves the ease with which the tops may be handled in further processing.
RECOMMENDED ALLOWANCE o The percentage that, in the calculation of commercial mass of textile material and of yarn linear density is added to the oven-dry mass. The percentage that, in the calculation of commercial mass of textile material and of yarn linear density is added to the oven-dry mass. The determination of this mass may or may not have been preceded by washing to remove natural or added oils and dressings. The recommended allowance is arbitrarily chosen according to commercial practice and includes the moisture regain. It may also include the normal finish that is added to impart satisfactory textile qualities to the material.
RECONSTITUTED FIBERS fibers, filaments, yarns Fibers produced from recovered waste polymer Fibers produced from recovered waste polymer or blends of virgin polymer and recovered waste polymer.
RECOVERABLE ELONGATION o In rope, elongation which may be reclaimed after a period of relaxation. In rope, elongation which may be reclaimed after a period of relaxation.
RECOVERED WOOL v SeeReused wool. SeeReused wool.
RECOVERY fibers, filaments, yarns ability of a yarn or fiber to return to its original length The ability of a yarn or fiber to return to its original length after it has been stretched.
RECYCLED WOOL v The resulting fiber when wool has been woven or felted into a wool product The resulting fiber when wool has been woven or felted into a wool product which, without ever having been utilized in any way by the ultimate consumer, subsequently has been made into a fibrous state, or the resulting fiber when wool or reprocessed wool has been spun, woven, knitted, or felted into a wool product which, after having been used in any way by the ultimate consumer, subsequently has been made into a fibrous state.
REDEPOSITION processes, operations The tendency of soil, already removed from the fabric and being in suspension to go back on the fabric, 1. The tendency of soil, already removed from the fabric and being in suspension to go back on the fabric, thus lowering the fabric's retention of whiteness. 2. In laundering of fabrics, deposition of soil, dirt or grime on fabrics when the wash water has a high percentage of dirt, etc. that has already been removed in washing
REDOUBLING ¡ An operation combined with 'doubling' that is necessary in making even, uniform yarn. An operation combined with 'doubling' that is necessary in making even, uniform yarn. See Dou-bling.
REDUCTION ¡ In textile technology, this term is confined to the removal of oxygen from a substance, or the addition of hydrogen In textile technology, this term is confined to the removal of oxygen from a substance, or the addition of hydrogen
REDUCTION CLEARING processes, operations Removal of unfixed dyestuff Removal of unfixed dyestuff, usually disperse, by alkali/reducing system, usually sodium hydroxide/sodium dithionite.
REED F In a loom, a comb-like wired frame through which warp yarns pass. In a loom, a comb-like wired frame through which warp yarns pass. Each partition is a 'dent'. It separates the warp yarns and is used during weaving to beat-up the weft yarn into the cloth after each passage of weft yarn across the loom
REED GRATINGS F Transparent plates containing lines that are parallel and uniformly spaced in the cross-wise direction. Transparent plates containing lines that are parallel and uniformly spaced in the cross-wise direction. By placing an appropriate grating on a reed it is possible to see if there is any irregularity in the spacing of the reed wires. Reed gratings can also be used for counting the number of reed wires per unit distance. See also Parallel line gratings.
REED MARK t Fabric defect in woven fabrics. Fabric defect in woven fabrics. A crack, streak, line, or mark between groups of warp ends, either continuous or at intervals. Caused mainly due to crowded dents, open dents, improper warp tension, worn out reed, loose reed wires, incorrect reeding, etc.
REED NUMBER F The number of dents per unit length of the reed. The number of dents per unit length of the reed.
REED OMBRÉ processes, operations A woven ombré effect produced in the reed A woven ombré effect generally produced in the reed by a variation in warp pattern from open to close and then from close to open. Appears almost as shading running warpwise.
REED RAKE t A defect in fabric similar to a pin scratch. A defect in fabric similar to a pin scratch.
REED WIDTH I The width of the warp as it lies in the loom prior to the weaving. The width of the warp as it lies in the loom prior to the weaving.
REEDINESS t Fabric defect. Fabric defect. A noticeable grouping of warp threads due to the reed wires producing warp-way cracks. It can be caused by the use of a reed unsuited to the fabric construction employed.
REEDING PLAN I Also called Denting plan, Sleying plan. Also called Denting plan, Sleying plan. A plan indicating the arrangement of warp yarns into the reed dents, in one weave repeat.
REEDY CLOTH defects A defective fabric that shows reed marks. A defective fabric that shows reed marks. There are several causes such as drawing an insufficient number of warp yarns through each dent, too heavy a reed, improper finish, irregular reeding.
REEDY WARP t See Reed mark. See Reed mark.
REEL v See Hank. 1. See Hank.
2. A cylindrical former, usually flanged, suitable for use with domestic sewing machines, onto which sewing thread is wound.
3. The revolving drum, mill or swift of a section warping machine.
REEL DYEING processes, operations A form of open box dyeing A form of open box dyeing used especially for light fabrics to avoid tension on the goods or for crêpe to avoid flattening. Also used on woolen goods
REELED SILK fibers, filaments, yarns Raw silk wound directly from the cocoons into skeins Raw silk wound directly from the cocoons into skeins. The yarn has only a slight twist, and has not yet been twisted or thrown. Raw silk is usually marketed in this form
REELING ¡ The process of unwinding raw silk from the unbroken cocoons, which have been placed in hot water 1. The process of unwinding raw silk from the unbroken cocoons, which have been placed in hot water, and reeling filaments from several cocoons as a single thread, without any twist, held firm by the natural gum which coats the silk filaments. This is the first process in preparing silk yarn.
2. Unwinding of yarn from bobbins or cones, etc. and rewinding it in the form of a skein or hank.
REELING MACHINE F Also called Hanking machine. A revolving frame onto which a number of hanks or skeins or reels of yarn are wound simultaneously. Also called Hanking machine. A revolving frame onto which a number of hanks or skeins or reels of yarn are wound simultaneously. The frame normally comprises a number of parallel bars, some of or all of which are collapsible to facilitate removal of the wound hank, mounted circumferentially on a cylindrical form. Traversing yarn guides provide a pattern which enables the hank to be leased so that it can be unwound without entanglement after storage or, e.g. wet processing.
REFINE I A napped woolen fabric of fine quality, mainly used for livery. A napped woolen fabric of fine quality, mainly used for livery.
REFINISHING processes, operations treatment, such as steaming and pressing, given to a textile fabric Any treatment, such as steaming and pressing, given to a textile fabric to restore the finish.
REFRACTION o The deflection from a straight path undergone by a light ray in passing obliquely from one medium (as air) into another (as glass) in which its velocity is different. The deflection from a straight path undergone by a light ray in passing obliquely from one medium (as air) into another (as glass) in which its velocity is different.
REFRACTIVE INDEX o The ratio of the velocity of radiation (as light) in the first of two media to its velocity in the second as it passes from one into the other. The ratio of the velocity of radiation (as light) in the first of two media to its velocity in the second as it passes from one into the other.
REFURBISH processes, operations To brighten or freshen up and restore to wearability To brighten or freshen up and restore to wearability or use by cleaning such as Dry cleaning, Laundering, or Steam cleaning.
REGAIN v See Moisture regain. See Moisture regain.
REGATTA I A striped cotton-type fabric woven in 2/1 twill. A striped cotton-type fabric woven in 2/1 twill. The pattern consists of fast-dyed color and white in warp stripes of equal width. The fabric has a white undyed weft.
REGENERATED CELLULOSE FIBERS v See Rayon fiber, Viscose fiber, Modal fiber and Cupro fiber. See Rayon fiber, Viscose fiber, Modal fiber and Cupro fiber.
REGENERATED FIBER v See under Fiber. See under Fiber.
REGENERATED PROTEIN FIBERS fibers, filaments, yarns Fibers made from the protein of peanuts, maize, soya beans and milk Fibers made from the protein of peanuts, maize, soya beans and milk. They all possess wool-like characteristics of softness, warmth and resilience but it has not yet been found possible to produce a fiber of this type sufficiently strong to be used alone. Very little of this type of fiber is being manufactured in bulk
REGIMENTAL STRIPE I A textile pattern consisting of wide stripes of color different from the ground of the fabric. A textile pattern consisting of wide stripes of color different from the ground of the fabric. The colors of most of these stripes were taken from colors of Britsh regiments. Used primarily for neck-wear and hat bands.
REGINA I A fine cotton good quality 2/1 twill weave fabric. A fine cotton good quality 2/1 twill weave fabric. Two fold yarns may be used and the fabric is around 100 g/m2.
REGISTERING ¡ See Pitching See Pitching
REGISTRATION ¡ The correct fitting together of all areas and colors in a printed fabric The correct fitting together of all areas and colors in a printed fabric
REGULAR FINISHES I See Basic finishes under Finish. See Basic finishes under Finish.
REGULAR TWILL fabrics A trade term for a twill weave A trade term for a twill weave that produces diagonal lines running 45º angles without any fancy figures.
REGULAR TWIST v For cotton same as 'Z' twist. For cotton same as 'Z' twist. For wool, same as 'S' twist.
REINFORCED HOSIERY I Hosiery with a reinforced heel and toe knitted with an extra and sometimes coarser yarn. Hosiery with a reinforced heel and toe knitted with an extra and sometimes coarser yarn. A later development has been the use of nylon reinforcement in the toe and heel of both cotton and wool hose to increases the abrasion resistance.
REINFORCED SEAM  In sewn seams, a seam that includes an additional layer of material In sewn seams, a seam that includes an additional layer of material on the face or backside of the seam allowance.
REINFORCED TWILLS fabrics Combinations of regular twill and plain weaves. Combinations of regular twill and plain weaves. Generally warp-faced, with the twill line running from lower right to upper left. The fabrics are bleached or dyed and used for dresses.
REJECTION NUMBER o In acceptance sampling, the minimum number of nonconforming items in a sample In acceptance sampling, the minimum number of nonconforming items in a sample that requires the conclusion that the lot does not conform to specification.
RELATED SHDES o Colors of similar tone in the same or different depths of color. Colors of similar tone in the same or different depths of color.
RELATIVE HUMIDITY o The ratio of the water vapour present in an atmosphere to the amount present in a saturated atmosphere at the same temperature. The ratio of the water vapour present in an atmosphere to the amount present in a saturated atmosphere at the same temperature. It is generally expressed as a percentage.
RELAXATION ¡ Releasing of strains in textile materials. Releasing of strains in textile materials.
1. The relief of any strain present in fiber, yarn or fabric resulting from all stages of processing, nec-essary to impart dimensional stability to the final textile material.
2. An operation performed on a knitted sweater made of textured filament nylon yarn. This is a form of conditioning a fabric that is important to effective dyeing, shape, final appearance, and dimen-sional stability. Relaxation from tension is obtained by washing sweaters in a solution of soap and water or non-ionic detergent for five minutes at 90º F., then rinsing for two minutes.
RELAXATION DIMENSIONAL CHANGE I The dimensional change that occurs when a fabric is immersed in water without agitation The dimensional change that occurs when a fabric is immersed in water without agitation so that the strains and stresses put into fibers, yarns, or fabrics during previous processing stages such as spinning, weaving, or knitting, and finishing are relieved.
RELAXED STATE I in knit fabric, the dimensional state of a fabric when the forces within the loop structure are in equilibrium In knit fabric, the dimensional state of a fabric when the forces within the loop structure are in equilibrium and it is considered that the fabric can consolidate no more, without the application of force.
RELAXED YARN v A filament yarn of nylon or polyester which has been subjected to a yarn relaxation treatment. A filament yarn of nylon or polyester which has been subjected to a yarn relaxation treatment. The treatment imparts uniform dyeing characteristics to the yarn and an also reduces and equalizes shrinkage and torque.
RELEASING SLIDER F In zippers, a slider with a mechanical means for loosening the slider on the chain. In zippers, a slider with a mechanical means for loosening the slider on the chain.
RELEASING STOP F In zippers, a device attached at or near the top of the stringer on the separable pin side which limits the travel of the slider at the open end of the chain under normal closing operations. In zippers, a device attached at or near the top of the stringer on the separable pin side which limits the travel of the slider at the open end of the chain under normal closing operations. The slider may be forced beyond the releasing stop when added force is exerted towards the top of the zipper. Releasing stops are used on QR or QD zippers.
RELIEF FABRIC fabrics Also known as Blister fabric and Cloqué fabric. A patterned rib-based fabric, Also known as Blister fabric and Cloqué fabric. A patterned rib-based fabric, the surface of which exhibits a characteristic relief or blister effect in which the number of loops in the relief portion is greater than in the surrounding area on the effect side and on the reverse side. The relief area may be of a different color from the main ground and the ground also is patterned.
RELIEF PRINTING ¡ A method in which only the high parts of engraved plates are inked and printed A method in which only the high parts of engraved plates are inked and printed. Opposite to intaglio printing. Also see Cameo printing and Surface printing.
REMANUFACTURED WOOL v This is wool which has been used or processed before, as opposed to 'virgin wool' or 'pure new wool' which is wool being used for the first time. This is wool which has been used or processed before, as opposed to 'virgin wool' or 'pure new wool' which is wool being used for the first time. Wool and to some extent, hairs, have the capacity to be used more than once and in view of the cost of new wool, this is a distinct practical advantage which is not shared by any other textile fiber type.
There are three main sources of raw materials for this industry:
Shoddy: Fibers obtained by shredding 'soft' rags, i.e. knitted or loosely woven wool fabrics.
Mungo: Fibers obtained by shredding 'hard' rags, i.e. closely woven or thick heavily milled fabrics.
Noils: The shorter fibers of the wool staple extracted during the worsted combing process.
The rags used to obtain shoddy and mungo fibers are either old fabrics or new clippings but in re-ducing the rags to fibers there is considerable fiber damage and breakage. These fibers then are short, and vary considerably in thickness and quality and lack the full qualities of resilience and softness which new wool possesses. Noils are better in that the fibers are merely shorter than aver-age and not damaged, but they are not fully representative of the quality of wool from which they were extracted.
Due to the shortness of shoddy and mungo fibers they would be difficult to hold securely in a yarn and would easily be rubbed out in use so that the fabric would gradually disintegrate in wear. It is easy to see therefore how the term shoddy came to represent something poor in quality.
These fibers are mostly blended with new wool to prevent rapid loss of fibers. In this use they are a valuable contribution to the textile industry because if they are skillfully used, attractive medium and low priced woolen fabrics can be made which have sufficient durability, particularly for fashion garments. Fabrics so made are not obviously inferior and at present state of legislature can be la-belled 'all wool' in many countries. Hair noils can be used as a fiber content in a fabric and labelled as the hair so that the fiber name in itself on the label is no clear guarantee of quality. Many coun-tries demands clear labeling distinguishing between new, re-used, and re-processed fibers.
REMBRANDT RIB I A knitted vertical-rib effect in women's hosiery A knitted vertical-rib effect in women's hosiery made by alternating five drop stitches and one inch of plain knitting.
REMNANTS I In the marketing of textile material, those accumulated short odd lengths of cloth, remaining from original full-length piece. In the marketing of textile material, those accumulated short odd lengths of cloth, remaining from original full-length piece. See also Fents.
RENAISSANCE CLOTH I A French term for fabric made from reclaimed wool. A French term for fabric made from reclaimed wool.
RENAISSANCE LACE I Motifs joined by a variety of stitches. Motifs joined by a variety of stitches.
REP I See Repp. See Repp.
REP STITCH  A canvas stitch that is worked vertically on double-thread canvas. A canvas stitch that is worked vertically on double-thread canvas. Also called Aubusson stitch. See also Canvas stitch.
REPCO PROCESS ¡ See under False twisting. See under False twisting.
REPEAT I ¡ IN WEAVING. A pattern which is repeated in the fabric weave. 1. IN WEAVING. A pattern which is repeated in the fabric weave.
2. IN PRINTING. The exact reproduction of any unit of design placed in an accurate geometric rela-tionship to it. An example for this is the Square Repeat.
REPELLENT general Possessing the property of resistance. Possessing the property of resistance. Special finishes impart various types of repellency to textiles, e.g. water repellency, stain, oil, and moth.