Ultrasonic dyeing of thermoplastic non-woven fabric

Details Ultrasonic dyeing of thermoplastic non-woven fabric Ultrasonic dyeing of thermoplastic non-woven fabric

1982-01-15

1983-12-06

Wityshyn, Michael G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156277, 156290, 156296, 156385, 156553, 1565802, 156582, 264 23, 428296, B23K 2708, B32B 3120

Patent

active

044191600

ABSTRACT:
The ultrasonically bonded point bonds of non-woven fabric are dyed by applying liquid dye to the contacting crossing points of the fibers before or at the same time that they are bonded by the application of ultrasonic energy, such energy being used not only to effect the point bonds but also to drive and fix the dye in such point bonds.

REFERENCES:
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patent: 3575752 (1971-04-01), Carpenter
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patent: 3765974 (1973-10-01), Petersik et al.
patent: 3868214 (1975-02-01), Shackleton
patent: 3966519 (1976-06-01), Mitchell et al.
patent: 3989448 (1976-11-01), Bohrn
patent: 4049374 (1977-09-01), Rejto
patent: 4086112 (1978-04-01), Porter
patent: 4147507 (1979-03-01), Laus
patent: 4259399 (1981-03-01), Hill

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