Eastman-kodak Company

Newton C Landis

Robert J Blackman

Gerald G Reafler

William J Greene

Corrado Zollo

Louis P Harasta, Jr

A photographic filmstrip is initially coiled about a spool inside a supply cartridge such that a core set is imparted to the filmstrip causing the filmstrip to curl in a longitudinal direction when not constrained. A leading end of the filmstrip is passed adjacent constraining means after the leading end of the film exits a film processor. The leading end of the filmstrip is contacted against the constraining means such that, as the filmstrip continues to exit the film processor, the filmstrip coils up against the constraining means to prevent the filmstrip from curling back against the exit aperture from the film processor.

Method and apparatus for handling a photographic filmstrip as the

A photographic filmstrip is initially coiled about a spool inside a cartridge with a trailing film end portion secured to the spool and a leading film end portion being free. The filmstrip is advanced, leading film end portion first, from the supply cartridge into a host container such that the filmstrip is reverse coiled in the host container to reduce any longitudinal curl in the filmstrip resulting from the filmstrip being wound on the spool. The trailing film end portion is released from the spool. The film in the host container can be heated to further reduce the longitudinal curl in the filmstrip.

Method and apparatus for preparing a photographic filmstrip for

An adhesive-coated thermoplastic film is stretched and bonded to a three-dimensional substrate by vacuum thermoforming at a lower than normal temperature, at which the film has an elastic modulus of at least 10.sup.9 dynes/cm.sup.2, followed by moderate heat treatment of the resulting laminated article. The procedure is especially useful in avoiding air entrapment and peel-back in the thermoforming of a paint-coated film on exterior body panels for automobiles.

Thermoforming method

A protective and decorative sheet material, such as a paint-coated film, which is bonded by an adhesive layer and vacuum thermoforming to a substrate, can develop surface roughness when exposed to heat for extended periods of time. This defect is unexpectedly reduced or eliminated by raising the surface energy of the substrate and roughening the surface of the substrate within certain limits, prior to application of the sheet material.

Bonding of thermoplastic sheet material to roughened substrates

Extrudable materials which exhibit a decrease in viscosity as the shear rate is increased, such as magnetic dispersion striping materials, are extrusion coated in the form of a narrow stripe. The stripe has predetermined uniform cross-sectional dimensions including substantially uniform thickness, and is coated onto a moving web by means of a die maintained in a predetermined spaced relation with the web. The die has two or more bores through which the extrudable material is extruded in columns onto the moving web to form the stripe thereon.

Growing community of inventors

Penfield, NY, United States of America

Newton C Landis