SLIP AGENT FOR PROTECTING GLASS

摘要

This disclosure features use of a paper or polymer film that includes a slip agent that can transfer to its surfaces. Once the paper or film is pressed against a glass sheet, this will leave a thin surface roughness of slip agent that can prevent or reduce glass surface scratches from other surfaces or particles during shipping or finishing (e.g., cutting to size, conveyance of glass), thereby improving the yield of glass shipments between glass forming plants and customers. The thin discontinuous layer of slip agent remaining on the glass surface can be washed off easily in subsequent washing processes. The paper or film can have the slip agent imbibed within the paper or coated on it as a surface member.

主权项

1. A method of protecting glass sheets from scratching comprising:
a) positioning a paper or polymer film on one of said glass sheets, a long chain fatty ester or long chain fatty amide slip agent being presented on said paper or film in contact with said glass sheet; b) pressing said paper or film against said glass sheet; c) transferring a portion of said slip agent from the paper or film onto said glass sheet; and d) removing said paper or film from said glass sheet, while leaving said slip agent on the glass sheet to inhibit scratching of the glass sheet subsequent to removal of the paper or film.