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Coating Booth for Thin Adhesive Coating

IP.com Disclosure Number: IPCOM000091865D
Original Publication Date: 1968-Jun-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Cleesattel, JE: AUTHOR [+2]

Abstract

An airtight coating booth provides a solvent environment in which laminations 10 can be coated with a thin adhesive coating. Each lamination surface has an adhesive layer of a thickness of about 40 micro-inches. The controlled solvent environment precludes webbing of the adhesive during coating of the laminations. In operation, rack 12 of clean laminations is immersed into adhesive tanks 14. Access window 16 at the front of the apparatus is lowered and closes vent 20 at the rear of the booth. Vent 20 faces exhaust duct 22. At this point, the coating booth is substantially airtight. After a short time, withdrawal units including takeup reel 24 are operated, causing rack 12 supporting laminations 10 to slowly withdraw at a rate of about three inches a minute.

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Coating Booth for Thin Adhesive Coating

An airtight coating booth provides a solvent environment in which laminations 10 can be coated with a thin adhesive coating. Each lamination surface has an adhesive layer of a thickness of about 40 micro-inches. The controlled solvent environment precludes webbing of the adhesive during coating of the laminations. In operation, rack 12 of clean laminations is immersed into adhesive tanks 14. Access window 16 at the front of the apparatus is lowered and closes vent 20 at the rear of the booth. Vent 20 faces exhaust duct 22. At this point, the coating booth is substantially airtight.

After a short time, withdrawal units including takeup reel 24 are operated, causing rack 12 supporting laminations 10 to slowly withdraw at a rate of about three inches a minute. Microswitch 18 shuts off the withdrawal motor when a rack is completely withdrawn from the adhesive tanks. A rack is then left to hang in the closed booth over the tanks. The solvent vapors from the adhesive tanks and the solvent vapor that is emitted from the freshly coated lamination sheets provide a solvent environment that prevents the undesirable webbing effect. When access door 16 is opened for removal of the rack of laminations, vent 20 opens simultaneously, permitting the solvent vapors to be exhausted to the rear and preventing the passage of solvent vapors to the operator at the front of the booth.

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