Ring

1. A narrow band around hosiery appearing different from the rest of the hose. Principal

Ring doubling

A system of producing a folded yarn by twisting together two or more single yarns using ringand-traveller as the twisting technique. The terms ring twisting and downtwisting are also used when the same technique is employed to increase or decrease the twist in a single yarn. (See also uptwisting.)

Ring spinning

A continuous system of spinning in which twist is inserted into a yarn by using a circulating traveller. The yarn is wound on to the package since the rotational speed of the package is greater than that of the traveller. (See also spinning.)

Ring Spinning Frame

See SPINNING FRAME.

Ring twisting

A system of producing a folded yarn by twisting together two or more single yarns using ringand-traveller as the twisting technique. The terms ring twisting and downtwisting are also used when the same technique is employed to increase or decrease the twist in a single yarn. (See also uptwisting.)

Ring-Spinning

A system of spinning using a ring-and-traveler takeup wherein the drafting of the roving and twisting and winding of the yarn onto the bobbin proceed simultaneously and continuously. Ring frames are suitable for spinning all counts up to 150’s and they usually give a stronger yarn and are more productive than mule spinning frames. The latest innovation in ring spinning involves the use of a revolving ring (Also see REVOLVING SPINNING RING) to increase productivity. Ring spinning equipment is also widely used to take-up manufactured filament yarns and insert producer-twist at extrusion.

Ringer

1. On a section beam ringer is a term used for one or more filaments that have left the parent end; as the beam revolves the filaments continue to unwind wrapping around the beam (hence the word “ringer”). The severity of a ringer is dependent upon the number of filaments contained therein at the time the filaments break. 2. In slashing the term ringer is often used when an end breaks on the slasher can adheres to the can and continues to wrap around it. This condition should not be confused with ringers on the section beam.

Rip Out

See PICK-OUT MARK.

Ripening

1. A process in the production of cellulose ethanoate (acetate) consisting in the splitting off of some of the ethanoic acid (acetic acid) and most of the combined catalyst present in the primary cellulose ethanoate (acetate).
2. A process in the manufacture of viscose in which, during storage prior to spinning, the xanthate slowly decomposes. The number of xanthate groups is reduced and some redistribution takes place. The process is time and temperature-dependent.

Ripped Selvage

See CUT SELVAGE. © 2001 Celanese Acetate LLC

Ripping

The operation of removing cotton or manufactured fibre linings from garments prior to the sorting and classification of rags.

Ripple (weft knitting)

tuck rippleA fabric, made on one set of needles, featuring raised effects that are developed by selective knitting and tucking, tuck loops generally being accumulated in alternate wales.welt rippleA held-loop fabric, made on two sets of needles by selective knitting and missing on one set and continuous knitting on the other and featuring roll or wave effects on the fabric side.

Ripple shed

weaving machines having different parts of the warp sheet in different phases of the weaving cycle at any instant. This type of shed makes it possible for a series of weft carriers or shuttles to move along in successive sheds in the same plane. When the weft carriers or shuttle carriers or shuttles travel a circular path through the wave shed, the machines are generally referred to as 'circular weaving machines' or ,circular looms'

Ripple comb

A large comb used for removing the seed bolts or capsules from the flax crop by hand. (See also roughing-out (flax).)

Ripple shed

A shed in a multiphase weaving machine (see under weaving machine) where several sheds are formed in the direction of weft and move laterally. The sheds may be formed by healds driven individually or by a series of narrow heald frames at various stages of heald timing.