A heat-resistant roll with improved characteristics, a production method thereof, and a method of producing sheet glass using the heat-resistant roll. A method of producing a heat-resistant roll equipped with a roll portion containing 5% by weight or more of clay includes: a grinding step (S101) of grinding a roll surface of the roll portion; and a surface treatment step (S102) of performing surface treatment of smoothening the ground roll surface in a wet state.

A heat-resistant roll with improved characteristics, a production method thereof, and a method of producing sheet glass using the heat-resistant roll. A method of producing a heat-resistant roll equipped with a roll portion containing 5% by weight or more of clay includes: a grinding step (S101) of grinding a roll surface of the roll portion; and a surface treatment step (S102) of performing surface treatment of smoothening the ground roll surface in a wet state.

A glass manufacturing apparatus includes a delivery apparatus defining an upstream portion of a ribbon travel path extending in a first travel direction. A forming roll extends along an axis parallel to the travel path and perpendicular to the first travel direction. The forming roll includes a recess that imparts a protrusion to a ribbon. A substantially planar surface is positioned downstream from the forming roll and receives the ribbon. A conveyor supports the substantially planar surface. The conveyor moves the substantially planar surface in a second travel direction that is angled relative to the first travel direction. A force application apparatus biases the ribbon toward the substantially planar surface to alter a position of the protrusion relative to a major surface of the ribbon. Methods of manufacturing a ribbon are provided.

A glass manufacturing apparatus includes a delivery apparatus defining an upstream portion of a ribbon travel path extending in a first travel direction. A forming roll extends along an axis parallel to the travel path and perpendicular to the first travel direction. The forming roll includes a recess that imparts a protrusion to a ribbon. A substantially planar surface is positioned downstream from the forming roll and receives the ribbon. A conveyor supports the substantially planar surface. The conveyor moves the substantially planar surface in a second travel direction that is angled relative to the first travel direction. A force application apparatus biases the ribbon toward the substantially planar surface to alter a position of the protrusion relative to a major surface of the ribbon. Methods of manufacturing a ribbon are provided.

Methods of manufacturing a ribbon include contacting the ribbon with a recess of a forming roll to impart a protrusion to a first major surface of the ribbon. Methods include receiving the ribbon on a support surface positioned downstream from the forming roll. A second major surface of the ribbon is opposite the first major surface and faces the support surface. The protrusion extends in a direction away from the support surface. Methods include forming a vacuum between the second major surface of the ribbon and the support surface to bias the ribbon toward the support surface.

Methods of manufacturing a ribbon include contacting the ribbon with a recess of a forming roll to impart a protrusion to a first major surface of the ribbon. Methods include receiving the ribbon on a support surface positioned downstream from the forming roll. A second major surface of the ribbon is opposite the first major surface and faces the support surface. The protrusion extends in a direction away from the support surface. Methods include forming a vacuum between the second major surface of the ribbon and the support surface to bias the ribbon toward the support surface.

According to one or more embodiments disclosed herein, a glass sheet may be formed by a method which includes supplying a feed of molten glass to an upper surface of a pair of forming rolls, and rotating the pair of forming wheels to continuously form a glass sheet from the molten glass. The pair of forming rolls may be spaced apart by a forming gap, and the forming gap may have a width of less than or equal to about 800 microns. The molten glass may have a viscosity of less than or equal to about 200 poise. The glass sheet may have a thickness of less than or equal to about 800 microns immediately upon passing though the forming gap.

According to one or more embodiments disclosed herein, a glass sheet may be formed by a method which includes supplying a feed of molten glass to an upper surface of a pair of forming rolls, and rotating the pair of forming wheels to continuously form a glass sheet from the molten glass. The pair of forming rolls may be spaced apart by a forming gap, and the forming gap may have a width of less than or equal to about 800 microns. The molten glass may have a viscosity of less than or equal to about 200 poise. The glass sheet may have a thickness of less than or equal to about 800 microns immediately upon passing though the forming gap.

A method for texturing a substrate includes 3-D printing a pattern onto a substrate to form a texture. The pattern has a root mean square roughness between 40 to 1000 microns and an autocorrelation function greater than 0.5 for distances less than 50 microns.

A method for texturing a substrate includes 3-D printing a pattern onto a substrate to form a texture. The pattern has a root mean square roughness between 40 to 1000 microns and an autocorrelation function greater than 0.5 for distances less than 50 microns.