London shrinking

A finishing process applied to fabrics in which the fabric is thoroughly moistened and then allowed to dry naturally in the absence of tension,loom1. A hand loom.
2. A treadle loom.
3. A power loom,.
4. A term used for weaving machine.

Long Staple

A long fiber. In reference to cotton long staple indicates a fiber length of not less that 1-1/8 inches. In reference to wool the term indicates fiber 3 to 4 inches long suitable for combing.

Loom

A machine used for producing fabric by weaving.single phase weaving machineA weaving machine in which the weft is laid across the full width of the warp sheet in a single phase of the working cycle. The main types of single phase weaving machines are:1. Machines with shuttles:
(i) handlooms.
(ii) non-automatic weaving machines: power-operated machines on which the weft supply in the shuttle is changed by hand.
(iii) automatic weaving machines; automatic looms: power-operated machines on which the shuttles or pirns are changed automatically.
2. Machines (power-operated) without shuttles; shuttleless weaving machines:
(i) weaving machines with projectiles: machines in which the weft thread is gripped by jaws, fitted in a projectile, which is then propelled through the shed.
(ii) weaving machines with rapier(s); rapier looms: machines in which the means of carrying the weft through the shed is fixed in the end of a rigid rod or in telescopic rods or in a flexible ribbon, this being positively driven. A rapier machine may have a single rapier to carry the weft across the full width or a single rapier operating bilaterally with a centrally located bilateral weft supply, or two rapiers operating from opposites sides of the machine.
(iii) jet weaving machines; jet looms: machines in which the weft thread is taken through the shed by a jet of air or liquid.muitiphase weaving machineA machine in which several phases of the working cycle take place at any instant so that several picks are being inserted simultaneously. The main types of multiphase weaving machines are:1. wave shed machines: 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'.
2. parallel shed machines: weaving machines having several sheds are formed simultaneously with each extending across the full width of the warp and with the shed moving in the warp direction.

Loom Barré

A repeated unevenness in the fabric usually running from selvage to selvage and caused by uneven let-off or take-up or by a loose crank arm.

Loom effective speed

The product of the loom speed in picks per minute and the absolute ]coin efficiency. (See also loom efficiency (absolute).)

Loom efficiency (absolute)

The ratio of the number of picks inserted by a weaving machine (per unit of time, e.g., hour, shift, day or week) to the number of picks which would have been inserted if the machine had been running continuously (using actual machine speed for the calculation).

Loom efficiency (overall)

The average of loom efficiency of all weaving machines in the shed.

Loom efficiency (running)

The ratio of the number of picks inserted by a weaving machine (per unit of time, e.g., hour, shift, day or week) to the number of picks which would have been inserted if the machine had been running at the specified speed after allowing for ordinary stoppages.
Note.. Ordinary stoppages are those concerning the weaver and tuner, e.g., stoppages on account of weft replenishment in non-automatic or shuttle changing looms, machine adjustments, warp adjustments, and warp replacements.

Loom efficiency shift

The ratio Of tile number of picks inserted by a weaving machine (per unit of time, e.g., hour,day or week) to the number of picks which would have been inserted if the machine had been running continuously at the specified speed.

Loom Fly

Waste fibers that are inadvertently woven into a fabric.

Loom-Finished

A term describing fabric that is sold in the condition in which it comes from the loom.

Loom-state

Any woven fabric as it leaves the loom before it receives any subsequent processing. (See also grey.)

Looming

A term covering the processes involved in preparing a weaver's beam for the loom, e.g., drawing-in, dropper-pinning, sleying, knotting, tying, etc.

Loop column

In carpets, tufts or loops running in a line essentially parallel to the direction of manufacture.

Loop column

See tuft column.