非织造材料与工程专业英语词汇（N）——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（N）——非织造论坛整理发布，第一无纺布网！

N

Nappy
Absorbent material worn as underpants by a baby not yet toilet trained.

Natural fibres
Fibres made directly from animals, vegetables or minerals. Examples are silk, wool, cotton, flax, jute, ramie, and asbestos.

Necking
Narrowing in width of a fabric, fibre or film when it is stretched.

Needlefelt

A sheet of fibres (generally man-made) bonded by needling.

Needlepunching
Mechanically binding a web to form a fabric by puncturing the web with an array of barbed needles that carry tufts of the web's own fibres in a vertical direction through the web.

Needling
Action of needles being inserted and withdrawn from a batt or web or article not necessarily to produce bonding.

Neps
Small knots of fibres that were not separated before forming the web.

Nip
The line of close contact between two cylinders between which a fabric or web passes.

Nonwoven
A manufactured sheet, web, or batt directionally or randomly oriented fibres bonded by friction and/or cohesion and/or adhesion, excluding paper and products that are woven, knitted, tufted stitchbonded incorporating binding yarns or filaments, or felted by wet-milling, whether or not additionally needled. The fibres may be of natural or man-made origin. They may also be staple or continuous filaments or be formed in situ.

Nylon fibre
A manufactured fibre in which the fibre forming substance is any long chain synthetic polyamide having recurring amide groups (-NH-CO-) as an integral part of the polymer chain. The two principal nylons are NYLON 66, which is polyhexamethylene diamine adipamide, and NYLON 6, which is polycaprolactam.

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