Method for finishing a tubular felted sleeve

Details Method for finishing a tubular felted sleeve Method for finishing a tubular felted sleeve

1980-10-20

1982-08-10

Hall, James R.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

With reshaping or surface embossing of formed article

264110, D04H 500

Patent

active

043437532

ABSTRACT:
A method is disclosed for use in the finishing of sleeves (23) made by needle felting thermoplastics fibres. The sleeves (23) are placed over cylindrical supports (13) mounted for rotation about their axes and movable with a base such as a table (11) in a treatment path past heating means (17) where the outer fibres are heated to above their softening temperature to undergo at least partial melting. Simultaneously the sleeves (23) shrink generally onto the supports (13) which are identical, thus ensuring that all sleeves (23) treated have the same final inside diameter. If desired, the sleeves (23) after heating can be moved past and in pressure-loaded contact with a smooth surface (20) to give them a glazed or calendered outer surface.

REFERENCES:
patent: 2632921 (1953-03-01), Kreidl
patent: 3009209 (1961-11-01), Weinbrenner et al.
patent: 3192294 (1965-06-01), Streed et al.
patent: 3508307 (1970-04-01), Dilo
patent: 4071394 (1978-01-01), Ball

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