Method for the production of a synthetic leather

Details Method for the production of a synthetic leather Method for the production of a synthetic leather

2005-01-04

2005-01-04

Tentoni, Leo B. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

C028S104000, C156S167000, C264S078000, C264S103000, C264S147000, C264S162000, C264S171240, C264S172140, C264S210800

Reexamination Certificate

active

06838043

ABSTRACT:
A synthetic leather made of a nonwoven fabric impregnated and/or coated with a polymer, with a surface weight of 100 to 500 g/m2, and a tensile strength greater than 300 N/5 cm in the lengthwise and the crosswise direction, where the nonwoven fabric is made up of melt-spun multi-component endless filaments, aerodynamically stretched and directly laid up to form a nonwoven material, having a titer less than 2 dTex, and wherein the multi-component endless filaments, after preliminary bonding, are split and bonded by at least 90% to produce supermicro endless filaments having a titer less than 0.2 dTex.

REFERENCES:
patent: 4107374 (1978-08-01), Kusunose et al.
patent: 4147574 (1979-04-01), Setsuie et al.
patent: 4390566 (1983-06-01), Umezawa et al.
patent: 4560385 (1985-12-01), Baravian
patent: 5899785 (1999-05-01), Groten et al.
patent: 0 090 397 (1983-10-01), None
patent: 0 624 676 (1994-11-01), None
patent: 0 952 250 (1999-10-01), None
patent: 9924658 (1999-05-01), None
“Nouveaux cuirs synthetiques japonais”, L'Industrie Textile, France, No. 1255/1256, Jun. 1, 1994, p. 63.

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