Buffing tools and methods of making

Details Buffing tools and methods of making Buffing tools and methods of making

2007-01-09

2007-01-09

Eley, Timothy V. (Department: 3724)

Abrading

Flexible-member tool, per se

Comprising fibers

C028S104000, C451S533000, C451S536000

Reexamination Certificate

active

10431764

ABSTRACT:
A buff is made from a non-woven fabric where the fibers are first carded and formed into a fairly thick fleece. The fleece is passed over a topographical surface on, for example, a moving belt or a drum. The fleece is subject to a bow-tie hydroentanglement process where many fine jets of water entangle the fibers on the topographical surface. Excess water is vacuumed from the system. The fabric is dried and chemically treated. With the fabric a variety of buffing tools are made, in wheel, belt or roll form. Tests against standard and mill treatment buffs show a remarkably lower fabric weight loss percentage and lower or normal operating temperatures. The fabric has exceptional mechanical strength having a tensile strength in excess of 650 N/50 mm according to DIN 29073/3. Preferably the fabric has a tensile strength of at least 1,000 N/50 mm in the machine direction and in excess of 900 N/50 mm in the cross direction according to such DIN.

REFERENCES:
patent: 5989113 (1999-11-01), Arnold
patent: RE37295 (2001-07-01), Heerten et al.
patent: 6595843 (2003-07-01), Weber
patent: 2004/0014388 (2004-01-01), Baert et al.

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