Contactless knurling process for winding of high modulus thermop

Details Contactless knurling process for winding of high modulus thermop Contactless knurling process for winding of high modulus thermop

1986-07-30

1990-07-17

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

101 17, 101 32, 21912166, 21912172, 21912173, 21912179, 264 25, 264 401, 264132, 2642102, 264284, 427 531, 427 541, 427177, 427284, 428157, 428192, B29C 3510, B29C 7104

Patent

active

049420003

ABSTRACT:
A contactless method for knurling thermoplastic film to improve its winding characteristics is disclosed. A preferred embodiment employs an ink jet printer to intermittently deposit ink upon at least one margin of the moving film surface. A second preferred embodiment employs a laser to intermittently modify at least one margin of the moving film surface. The invention eliminates the problem of stress gradient during web transport prior to winding which is inherent in contact knurling and particularly troublesome in the manufacture of high modulus, relatively thin thermoplastic films.

REFERENCES:
patent: 2271192 (1942-01-01), Hinz
patent: 2729267 (1956-01-01), Walton
patent: 3061886 (1962-11-01), Seager et al.
patent: 3261903 (1966-07-01), Carr
patent: 3502765 (1970-03-01), Spencer
patent: 3529785 (1970-09-01), Mistele
patent: 3536273 (1970-10-01), Hawkins
patent: 3626143 (1971-12-01), Fry
patent: 3627858 (1971-12-01), Parts et al.
patent: 3707431 (1972-12-01), Whitfield, Jr.
patent: 3781214 (1973-12-01), Nemoto et al.
patent: 3790744 (1974-02-01), Bowen
patent: 3842152 (1974-10-01), Whitfield, Jr. et al.
patent: 3873664 (1975-03-01), Curtis et al.
patent: 4018947 (1977-04-01), Stone, Jr.
patent: 4092518 (1978-05-01), Merard
patent: 4141735 (1979-02-01), Schrader et al.
patent: 4226825 (1980-10-01), Yamagisi et al.
patent: 4234300 (1980-11-01), Yamagisi et al.
patent: 4304750 (1981-12-01), Pira et al.
patent: 4307047 (1981-12-01), Edinger et al.
patent: 4380945 (1983-04-01), Guild et al.
patent: 4398678 (1983-08-01), Kron et al.
patent: 4536468 (1985-08-01), Yasui et al.
patent: 4598877 (1986-07-01), Oinonen
Kuhn, L. et al., "Ink-Jet Printing", Scientific American, vol. 240 (Apr. 1979), pp. 162-178.
"Imprinting, Non Contact", Packaging Encyclopedia & Yearbook 1985, vol. 30, No. 4-pp. 224, 225.
E. Galli, "Film Winders: Life in the Fast Lane", Plastics Mach. & Equipment 17 (May 1984).
"Hot Knurling Apparatus with Back-Up Roll Protection", Research Disclosure 21801 (Jun. 1982).

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