Process and device for the application of a high-active absorber

Details Process and device for the application of a high-active absorber Process and device for the application of a high-active absorber

1985-07-24

1987-06-23

Lusignan, Michael R.

Coating processes

Solid particles or fibers applied

Uniting particles to form continuous coating with...

118304, 118308, 118312, 118410, 427197, 427198, 427202, 427264, 427368, B05B 700, B05C 500, B05D 500

Patent

active

046752099

ABSTRACT:
A method for the application of highly absorbent material onto a moving substrate includes the steps of dispensing a melt adhesive film onto precisely defined areas of the substrate, covering such areas with the absorbent material and then removing excess absorbent material which did not adhere to the adhesive coated areas. The apparatus for practicing this method includes, in one embodiment, an adhesive applicator head operable to dispense the adhesive at timed intervals onto the moving substrate, a measuring head located downstream from the applicator head and timed to release the absorbent material over the adhesive covered areas moving past and a vacuum or mechanical cleaning device for removing excess absorbent material from the substrate. In an alternative embodiment, the measuring head is replaced with a receptacle containing absorbent material within which the substrate is immersed for coating the adhesive covered areas. The method and apparatus are particularly adapted for use with conventional machines in the manufacture of hygenic articles such as sanitary pads, tampons, diapers and the like.

REFERENCES:
patent: 2292596 (1942-08-01), Baechtold
patent: 2789075 (1957-04-01), Stahl
patent: 3399671 (1968-09-01), Satas
patent: 3439650 (1969-04-01), Stowell
patent: 3890926 (1975-06-01), Teed
patent: 4045833 (1977-09-01), Mesek et al.
patent: 4156664 (1979-05-01), Skinner et al.
patent: 4256526 (1981-03-01), McDaniel
patent: 4352837 (1982-10-01), Kopenhaver

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