非织造材料与工程专业英语词汇（L）——非织造论坛整理发布，第一无纺布网！

非织造材料与工程专业英语词汇（L）——非织造论坛整理发布，第一无纺布网！

L

Laminate
(see COMPOSITE).

Lap
A compressed sheet of fibres in a roll, weighing approximately 25 Kg. used to supply fibres to a card. Also called a picker lap.

Lead time
Time taken from initiation to actual start of event or process.

Lickerin
Art of the card that takes up tufts of fibres from the lap and feeds it to the main cylinder to be carded. It consists of a metal roll that has a spiral grooved surface covered with a sawtooth wire.

Lignin
Phenolic type compound associated with cellulose instructures such as wood. Acts as the 'cement' to give the material strength.

Limiting Oxygen index
Measure of flammability that determines the minimum concentration of oxygen in a gas mixture that is required to sustain steady burning.

Lint
Particles and short fibres that come off a fabric product during the stresses of use.

Linters
Short cotton fibres not removed from the cotton seed on the first pass through the gin. Linters are cut from the seed and used to make cellulose based chemicals and rayon.

Load(to-)
To place in place for processing i.e. to load a roll of finished web into the slitter.

Lumper roll
In carding reduces the size of the fibre bundles that are transferred to the main cylinder.

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