Dyed polyester fiber composite structure

Details Dyed polyester fiber composite structure Dyed polyester fiber composite structure

1982-08-25

1984-08-28

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

81156, 264 49, 264 78, 264211, 264344, 4273855, 4273899, 4274071, 427412, 428373, 428395, 428398, D02G 300

Patent

active

044684347

ABSTRACT:
A dyed polyester fiber composite structure having an enhanced brilliance and/or color depth, comprises (A) a dyed porous polyester fiber which has been produced (1) by preparing a polyester resin from a dicarboxylic acid component and a glycol component in the presence of a pore-forming agent containing 0.3 to 3 molar % of at least one phosphorus compound based on the molar amount of the dicarboxylic acid component, (2) by converting the polyester resin to a polyester fiber in which fine particles of the pore-forming agent are dispersed, by treating the polyester fiber with an aqueous alkali solution so that at least 2% of the weight of the fiber is removed and a number of fine pores are formed in the fiber and (4) by dyeing the porous polyester fiber; and (B) a coating layer on the peripheral surface of the dyed porous polyester fiber, comprising a polymeric material having a smaller refractive index than that of the porous polyester fiber.

REFERENCES:
patent: 3546187 (1970-12-01), Tandy, Jr.
patent: 3993834 (1976-11-01), Chimura et al.
patent: 4004059 (1977-01-01), Deiner
patent: 4190545 (1980-02-01), Marshall et al.
patent: 4219625 (1980-08-01), Mares et al.
patent: 4361617 (1982-11-01), Suzuki et al.

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