Hook and loop fasteners and method of making same

Details Hook and loop fasteners and method of making same Hook and loop fasteners and method of making same

1993-07-26

1995-07-25

Thomas, Alexander S.

Stock material or miscellaneous articles

Pile or nap type surface or component

Particular backing structure or composition

428 96, 428 97, 428100, 24448, B32B 306

Patent

active

054360510

ABSTRACT:
A hook or loop component of a hook and loop fastener having a textile ground sheet and filamentary pile, the ground sheet penetrated by a resinous binder of improved properties. Hydrolytically stable cross-linked bonds are formed in a binder under ambient or laundering conditions. Bonds of urea-, ureido-, or urethane-type result from curing of the hook or loop ground-sheet by exposure to water molecules, polyfunctional amines, or polyfunctional alcohols. The resin is applied as a hot-melt, as a neat liquid, or as a solute in a solvent. In a method for applying the resin as a hot-melt, a continuous strip of hook or loop elements is heated to approximately the same temperature as the melted resin and the melted resin is applied, using a coating head and coating knife, to a section of tape suspended between two support points. Other cross-link systems and thermoplastic systems are disclosed.

REFERENCES:
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patent: 3708382 (1973-01-01), Erb
patent: 4361925 (1982-12-01), Yamamoto et al.
patent: 4761318 (1988-08-01), Ott et al.
patent: 4770917 (1988-09-01), Tochacek et al.
patent: 4910062 (1990-03-01), Zinke et al.
Guise et al., "Structural Studies of Shrink-resist Polymers for Wool: Polyisocyantes with Different Backbones", JSDC, Jan. 1976, pp. 17-21.
Abstracts, American Chemical Society, Dec. 1991 (Teltech, Inc.).

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