Paper-coating

Details Paper-coating Paper-coating

1989-11-13

1991-12-24

Woo, Jay H.

Coating apparatus

Solid applicator contacting work

Movably mounted applicator

118321, 118322, 118323, 118410, 118419, B05B 314, B05C 318

Patent

active

050747762

ABSTRACT:
There is disclosed an apparatus for coating sheet material. The apparatus includes a rotatable backing roll (4) upon which a sample of sheet material may be mounted to form a cylinder, a coating head (9) including a blade (22), an outlet (21b) for dispensing a coating composition and a supply means (18) for supplying a coating composition to the outlet (21b) in the region of the coating edge of the blade (22), and means for enabling the coating head (9) to be moved in operation parallel to the axis of rotation of the backing roll (4) and in contact with the sheet material mounted thereon whilst the backing roll (4) is rotated, whereby a strip of sheet material may be coated of resultant helical form, wherein the supply means (18) includes an element which comprises a matrix of tubular passageways (19) longitudinally disposed with respect to the flow of coating composition through the coating head (9).

REFERENCES:
patent: 3521602 (1970-07-01), Coghill
patent: 4340011 (1982-07-01), Wahren et al.
patent: 4387663 (1983-06-01), Alheid
patent: 4398494 (1983-08-01), Alheid
patent: 4405661 (1983-09-01), Alheid
patent: 4594963 (1986-06-01), Krautzberger
patent: 4688516 (1987-08-01), Sommer
patent: 4702196 (1987-10-01), Kratzberger
patent: 4791879 (1988-12-01), Eklund et al.
patent: 4836134 (1989-06-01), Knop

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