Fiber, filament, yarn and/or flat articles and/or nonwoven mater

Details Fiber, filament, yarn and/or flat articles and/or nonwoven mater Fiber, filament, yarn and/or flat articles and/or nonwoven mater

1986-11-14

1991-05-21

Lusignan, Michael

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including interlaminar mechanical fastener

21912165, 21912166, 21912185, 264 22, 428229, 428399, 428400, 428401, D02G 300

Patent

active

050174231

ABSTRACT:
A fiber, a filament, yarn and/or a flat article and/or nonwoven material containing these, which has on its surface a microstructure consisting of dotted, linear and/or areal depressions and/or elevations, which have a depth or height, respectively, up to ca. 10 micrometers and extend across ca. 10% to 100% of the surface of the fiber and/or the filament.
A process for the manufacture of the fiber, the filament, yarn, flat article and/or nonwoven material provides that the fiber, the filament, yarn, flat article and/or nonwoven material is irradiated with a laser, and that as a result its surface is fused, melted on and/or removed in a dotted, linear and/or areal fashion.

REFERENCES:
patent: 3560291 (1971-02-01), Foglia et al.
patent: 3600289 (1971-08-01), Bragole
patent: 4457817 (1984-07-01), Bobeth et al.
patent: 4613470 (1986-09-01), Aftalion
patent: 4629858 (1986-12-01), Kyle
Japanese Patents Gazette, Feb. 25, 1976, Abstract J50069-310 (Asahi Chem Ind KK).
Article entitled: "Erzielung von Struktureffekten an Syntheseseiden durch Warmebehandlung mittels CO.sub.2 -Laserstrahlen.sup.1)" pub. in Textiltechnik, vol. 31, pp. 545, et seq.
Article entitled: "An Indication of Molten Cellulose Produced in a Laser Beam", published in Textile Research Journal, vol. 44, No. 2, pp. 152-154.
van Veld et al., Morphology of Man-Made Fibers, 12 Journal of Applied Polymer Science, pp. 2709-2724, 1968.

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