Imitation-leather, bias-stretching process

Details Imitation-leather, bias-stretching process Imitation-leather, bias-stretching process

1977-06-29

1979-02-20

Lowe, James B.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

26 69R, 28163, 264232, 264284, 264289, 264340, 264DIG73, 428904, 428910, B29C 1702, D06N 304

Patent

active

041408276

ABSTRACT:
A diagonal bias-stretching device and a method of enhancing surface grain of imitation-leather material with such device, which device comprises a reciprocating roller moving between lateral positions on either side of a line of advance of an imitation-leather material, to provide for alternating diagonal stretching and relaxing of the material as it moves under tension in the line of advance.

REFERENCES:
patent: 2494334 (1950-01-01), Dorst
patent: 3000754 (1961-09-01), Zentmyer
patent: 3233029 (1966-02-01), Rosmussen
patent: 3257488 (1966-06-01), Rosmussen
patent: 3919451 (1975-11-01), Lerg et al.
patent: 4002792 (1977-01-01), Petersen et al.
patent: 4017656 (1977-04-01), Lasman et al.
patent: 4052236 (1977-10-01), Kapasi et al.
patent: 4053669 (1977-10-01), Kapasi et al.

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