An optical film including a polarization layer, a first phase delay layer positioned on a side of the polarization layer and including a liquid crystal, and a second phase delay layer positioned on a side of the first phase delay layer, where the first phase delay layer has an optical axis defining an angle of about 17 degrees to about 27 degrees or about 27 degrees to about 17 degrees relative to a transmissive axis of the polarization layer, and the second phase delay layer has an optical axis defining an angle of about 85 degrees to about 95 degrees relative to the transmissive axis of the polarization layer.

A peeling device which peels a superposed substrate obtained by bonding a first substrate and a second substrate together, from one end portion of the superposed substrate toward the other end portion thereof, includes a first holding unit configured to hold the first substrate of the superposed substrate, a second holding unit configured to hold the second substrate of the superposed substrate, and a moving unit configured to move the first holding unit away from the second holding unit. The moving unit is configured to move in at least a peeling direction of the superposed substrate.

A stretch laminate having enhanced texture, and method for its manufacture is disclosed. The stretch laminate may include two nonwoven layers sandwiching an elastic member, the elastic member having been incorporated into the laminate in a pre-strained condition such that z-direction ruffles in the nonwoven materials are imparted to the laminate when it is in a relaxed condition. At least one of the nonwoven layers may be incrementally stretched or SELFed, adding a pattern of ridges and valleys to the material that combines with the ruffles, further enhancing loft and texture of the laminate.

A method for manufacturing a composite material part comprising a web and at least one flange. In a laying up stage, a plurality of plies of different orientations, including 0 oriented plies, are laid up to obtain a flat laminate with edges comprising an outer contour and an inner contour, the flat laminate also comprising at least one section with a radius of curvature of less than 10 m. A forming stage comprises forming a fold along a folding line on the flat laminate to create a flange forming an angle with the web, and applying a stress tension to the 0 oriented plies located at least partially between the folding line and the outer contour of the flat laminate, in the at least one section, to avoid the appearance of wrinkles.

The present invention relates to substrates and composites having dynamic, reversible micron-level luminal surface deformation including texture or geometric instabilities, e.g., surface wrinkling and folding. The surface deformation and its reversal to the original surface form or to another, different surface form, is effective to reduce or prevent surface fouling and, more particularly, in certain applications, to reduce or prevent unwanted platelet adhesion and thrombus formation. The substrates and composites include a wide variety of designs and, more particularly, biomedical-related designs, such as, synthetic vascular graft or patch designs.

In a laminating apparatus, a first roll is mountable on a first holder. A first conveying roller is configured to hold a first drawn-out portion of a first member that has been drawn out from the first roll. A controller is configured to perform: applying, using a first rotary drive portion, a first force to the first holder; and applying, using a second rotary drive portion, a second force to the first conveying roller. When driving, in a state where the first conveying roller holds the first drawn-out portion, the second rotary drive portion to apply the second force to rotate the first conveying roller for conveying the first drawn-out portion in a draw-out direction, the controller drives the first rotary drive portion to apply the first force to act on the first holder for urging the first drawn-out portion to be conveyed in a take-up direction.