Methods for producing a stretch film are provided, including disposing one or more extruders in fluid communication with a stock of virgin resin; heating the virgin resin to a molten state; delivering the molten virgin resin to a die; and extruding the molten virgin resin through the die onto a casting roll, thereby creating a cast stretch film. Methods for delivering the molten virgin resin onto a casting roll of varying sizes and set temperatures; and of moving a resulting film onto a secondary chill roll of varying sizes and set temperatures, are also provided. Finally, methods for moving the film from either the casting roll or the secondary chill roll onto a slitting assembly, dividing the film using one more interior or exterior slits, and then capturing and gathering the trim waste but not reintroducing the trim waste back into the production process are also disclosed.

Methods for producing a stretch film are provided, including disposing one or more extruders in fluid communication with a stock of virgin resin; heating the virgin resin to a molten state; delivering the molten virgin resin to a die; and extruding the molten virgin resin through the die onto a casting roll, thereby creating a cast stretch film. Methods for delivering the molten virgin resin onto a casting roll of varying sizes and set temperatures; and of moving a resulting film onto a secondary chill roll of varying sizes and set temperatures, are also provided. Finally, methods for moving the film from either the casting roll or the secondary chill roll onto a slitting assembly, dividing the film using one more interior or exterior slits, and then capturing and gathering the trim waste but not reintroducing the trim waste back into the production process are also disclosed.

A photosensitive resin composition for cell culture substrates that enables the low-cost manufacture of a cell culture substrate, that can easily form patterns of various shapes when providing a pattern on the surface of a cell culture substrate, has low cytotoxicity, and that can form a cell culture substrate; a cell culture substrate that is formed using the photosensitive resin composition; and a cell culture substrate manufacturing method that uses the photosensitive resin composition. The photosensitive resin composition includes a photopolymerizable monomer and a photopolymerization initiator. The photopolymerizable monomer contains a defined amount of a polyfunctional monomer that is at least trifunctional, and the content of the photopolymerization initiator is within a prescribed range.

A photosensitive resin composition for cell culture substrates that enables the low-cost manufacture of a cell culture substrate, that can easily form patterns of various shapes when providing a pattern on the surface of a cell culture substrate, has low cytotoxicity, and that can form a cell culture substrate; a cell culture substrate that is formed using the photosensitive resin composition; and a cell culture substrate manufacturing method that uses the photosensitive resin composition. The photosensitive resin composition includes a photopolymerizable monomer and a photopolymerization initiator. The photopolymerizable monomer contains a defined amount of a polyfunctional monomer that is at least trifunctional, and the content of the photopolymerization initiator is within a prescribed range.

A method of manufacturing an image array for an optical device, comprising: (a) generating a plurality of different mask images by, for each of at least two different images, the at least two images collectively including parts in at least two different colours: (a1) providing a pixelated version of the image comprising a plurality of image pixels, each image pixel exhibiting a uniform colour; (a2) for each image pixel of the pixelated image, creating a corresponding mask pixel based on the colour of the respective image pixel, each mask pixel comprising an arrangement of one or more mask regions and/or one or more void regions, different arrangements of the one or more mask regions and/or one or more void regions in different ones of the mask pixels defining different respective colours; (a3) arranging the mask pixels in accordance with the positions of their corresponding image pixels in the pixelated image to form a mask image; (b) interlacing the plurality of different mask images, by dividing each mask image into elongate image slices extending along a first direction, selecting a subset of image slices from each mask image, and arranging the selected image slices from all of the mask images to form an interlaced mask image in which the image slices from each respective mask image alternate with one another periodically along a second direction which is substantially orthogonal to the first direction; then, in any order or simultaneously: (c) forming a mask layer comprising a masking material which is patterned in accordance with the interlaced mask image; and (d) forming a colour layer comprising elongate strips of at least two different colours which alternate with one another periodically in the first direction, the elongate strips extending along the second direction; wherein the mask layer and the colour layer are arranged to overlap one another, whereby the void regions of the mask pixels in the mask layer reveal portions of the colour layer such that, in combination, the mask layer and the colour layer form a multi-coloured image array exhibiting versions of the at least two images interlaced with one another.

A method of manufacturing an image array for an optical device, comprising: (a) generating a plurality of different mask images by, for each of at least two different images, the at least two images collectively including parts in at least two different colours: (a1) providing a pixelated version of the image comprising a plurality of image pixels, each image pixel exhibiting a uniform colour; (a2) for each image pixel of the pixelated image, creating a corresponding mask pixel based on the colour of the respective image pixel, each mask pixel comprising an arrangement of one or more mask regions and/or one or more void regions, different arrangements of the one or more mask regions and/or one or more void regions in different ones of the mask pixels defining different respective colours; (a3) arranging the mask pixels in accordance with the positions of their corresponding image pixels in the pixelated image to form a mask image; (b) interlacing the plurality of different mask images, by dividing each mask image into elongate image slices extending along a first direction, selecting a subset of image slices from each mask image, and arranging the selected image slices from all of the mask images to form an interlaced mask image in which the image slices from each respective mask image alternate with one another periodically along a second direction which is substantially orthogonal to the first direction; then, in any order or simultaneously: (c) forming a mask layer comprising a masking material which is patterned in accordance with the interlaced mask image; and (d) forming a colour layer comprising elongate strips of at least two different colours which alternate with one another periodically in the first direction, the elongate strips extending along the second direction; wherein the mask layer and the colour layer are arranged to overlap one another, whereby the void regions of the mask pixels in the mask layer reveal portions of the colour layer such that, in combination, the mask layer and the colour layer form a multi-coloured image array exhibiting versions of the at least two images interlaced with one another.

A method for patching a hole in a composite parent structure. The method comprises: inserting an insert in the hole; placing a composite patch having a multiplicity of curved flexible members on one side of the composite parent structure in a position where a central portion of the composite patch overlies the insert and the flexible members confront opposing portions of the composite parent structure providing adhesive between the composite patch, the insert, and the composite parent structure; pressing the composite patch against the composite parent structure with sufficient pressure to force the flexible members to conform to the shape of the composite parent structure; and while the flexible members are in a stressed state, curing the adhesive in a manner that causes the flexible members to bond to the parent structure.

A panel production device includes: a transfer part that transfers, in a transfer direction, a panel having a core member that includes a thermoplastic resin and is formed in a corrugated shape, and a first faceplate that includes a thermoplastic resin, is formed in a plate shape, and is joined to a surface on one side of the core member; a supply part that supplies, toward a surface on the other side of the core member, a second faceplate that includes a thermoplastic resin and is formed in a plate shape; a heating part that heats at least one surface of respective surfaces of the core member and the second faceplate facing each other; and a pressurizing part that pressurizes and welds the core member of the panel and the second faceplate.

A method for making a faux wood material with a multilayer pattern effect and a mixed plastic material for use in the method involve: performing a compounding process on a thermoplastic elastomer material, a hard-segment-structure material and a foaming agent to form the mixed plastic material; performing through an extruder a first foaming process on the mixed plastic material to form a preliminary sheet having a density equal to 10% to 20% of the density of the mixed plastic material and a thickness of 1-4 mm; stacking preliminary sheets up; and performing through a hot-pressing mold a second foaming process on the stacked preliminary sheets to form the faux wood material having a density equal to 40%-50% of the density of the mixed plastic material. Accordingly, through the two foaming processes, a multilayer pattern effect can be presented on the faux wood material due to its density difference.

A method for making a faux wood material with a multilayer pattern effect and a mixed plastic material for use in the method involve: performing a compounding process on a thermoplastic elastomer material, a hard-segment-structure material and a foaming agent to form the mixed plastic material; performing through an extruder a first foaming process on the mixed plastic material to form a preliminary sheet having a density equal to 10% to 20% of the density of the mixed plastic material and a thickness of 1-4 mm; stacking preliminary sheets up; and performing through a hot-pressing mold a second foaming process on the stacked preliminary sheets to form the faux wood material having a density equal to 40%-50% of the density of the mixed plastic material. Accordingly, through the two foaming processes, a multilayer pattern effect can be presented on the faux wood material due to its density difference.