Extrusion type coating head

Details Extrusion type coating head Extrusion type coating head

1995-03-22

1997-07-01

Lamb, Brenda A.

Coating apparatus

Immersion or work-confined pool type

Work-confined pool

118419, B05C 312

Patent

active

056433638

ABSTRACT:
The center line average roughness (Ra) of the slit inner surfaces is made in a predetermined range of 5.0 .mu.m according to the present invention, and the straightness (W1) in the delivery direction of the coating solution thereof and the straightness (W2) in the perpendicular direction to the delivery direction thereof are made in predetermined ranges respectively in preferred embodiments. Thereby, development of wrinkles and inclined elongation in the tape itself are prevented when wound on a roll, the productivity is increased, and the product quality is improved.

REFERENCES:
patent: 5173119 (1992-12-01), Watanabe et al.
patent: 5336322 (1994-08-01), Tobisawa et al.
patent: 5397600 (1995-03-01), Shibata et al.
Patent Abstracts, vol. 17, No. 670 (C-1139), Dec. 9, 1993, JP-5-220438, Aug. 31, 1993.
Patent Abstracts of Japan, No. 2 (C-775), JP-2-207865, Aug. 17, 1990.
Patent Abstracts of Japan, No. 2 (C-775), JP-2-207866, Aug. 17, 1990.

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