Cap wrinkling in a contoured composite hat stringer is reduced by constraining the cap as the hat stringer is being formed from a flat composite charge. The cap is constrained by an inflatable bladder placed in a tool set used to form the composite charge.

Cap wrinkling in a contoured composite hat stringer is reduced by constraining the cap as the hat stringer is being formed from a flat composite charge. The cap is constrained by an inflatable bladder placed in a tool set used to form the composite charge.

A forming tool is used, which has a tool trough arranged in a stationary manner and a pressure bell, which can be lowered onto and lifted away from the tool trough. An arrangement is created in which a single- or multi-layer, initially flat, flexible laminate separates the trough interior from the pressure-bell interior in a pressure tight manner. A table, on which the 3-D substrate to be coated is located, assumes a lowered position within the trough interior; there is a considerable, free intermediate space (between the laminate and the 3-D substrate. A radiant-heater assembly is inserted into said intermediate space. The radiant-heater assembly has a carrier, on the top side of which radiant heaters that can be activated are attached and on the bottom side of which radiant heaters that can be activated are attached.

A forming tool is used, which has a tool trough arranged in a stationary manner and a pressure bell, which can be lowered onto and lifted away from the tool trough. An arrangement is created in which a single- or multi-layer, initially flat, flexible laminate separates the trough interior from the pressure-bell interior in a pressure tight manner. A table, on which the 3-D substrate to be coated is located, assumes a lowered position within the trough interior; there is a considerable, free intermediate space (between the laminate and the 3-D substrate. A radiant-heater assembly is inserted into said intermediate space. The radiant-heater assembly has a carrier, on the top side of which radiant heaters that can be activated are attached and on the bottom side of which radiant heaters that can be activated are attached.

The present disclosure is directed to recyclable lined molded fiber articles (e.g., bowls) that provide the necessary performance characteristics for storing frozen and refrigerated foods (acceptable oil resistance, water resistance, and water vapor barrier). The disclosed articles and methods for manufacturing such articles include bonding a thermoformable cellulose-based acetate film to a molded bagasse fiber article to form an impervious liner.

The present disclosure is directed to recyclable lined molded fiber articles (e.g., bowls) that provide the necessary performance characteristics for storing frozen and refrigerated foods (acceptable oil resistance, water resistance, and water vapor barrier). The disclosed articles and methods for manufacturing such articles include bonding a thermoformable cellulose-based acetate film to a molded bagasse fiber article to form an impervious liner.

A package for a product that contains a first and a second thermoform container body that are configured to support the product. The first container body includes a first outer wall extending along a side of the first container body and defining a first mating surface and a first interlocking structure proximate the first outer wall and including an outer surface. The second container body includes a second outer wall extending along a side of the second container body, an inner wall disposed inwardly of the second outer wall and defining a second mating surface, and a second interlocking structure intermediate the second outer wall and the inner wall. The first and second interlocking structures are configured to interlock with one another when the outer surface of the first interlocking structure is placed in facing engagement with the inner surface of the second interlocking structure.

A package for a product that contains a first and a second thermoform container body that are configured to support the product. The first container body includes a first outer wall extending along a side of the first container body and defining a first mating surface and a first interlocking structure proximate the first outer wall and including an outer surface. The second container body includes a second outer wall extending along a side of the second container body, an inner wall disposed inwardly of the second outer wall and defining a second mating surface, and a second interlocking structure intermediate the second outer wall and the inner wall. The first and second interlocking structures are configured to interlock with one another when the outer surface of the first interlocking structure is placed in facing engagement with the inner surface of the second interlocking structure.

Disclosed are a hat and a manufacturing method therefor and a hat top shaping device, the hat comprising: a seamless hat top without seams, wherein same is integrally formed by hot stretching a piece of a flat knitted fabric blank containing a vitrifiable petroleum chemical fibre material; and a bongrace jointed to the seamless hat top. The hat top of the hat can save on the production time and cost. The hat top of the hat can be made into various hat types and a variety of raw materials can be selected for same. The hat top of the hat is a hat top without seams, completely fitting the user's headform, and can be made by selecting a breathable material, thereby improving the aesthetics and comfort when wearing same.

Presented are manufacturing control systems for fabricating composite-material structures, methods for making/operating such systems, and resin transfer molding techniques for ameliorating race-tracking effects in fiber-reinforced polymer panels. A method for forming a composite-material construction includes confirming, via a system electronic control unit (ECU), that a fiber-based preform is placed in a mold cavity and that opposing mold segments of the molding apparatus are sealed together. A filler, such as a compressible bladder, a cluster of spring-biased pins, or a spray-chopped fiber bed, is introduced into a void between the fiber-based preform and a tool face of one mold segment to thereby eliminate an unwanted resin race track. The system ECU commands a resin pump to inject resin through a primary gate of the molding apparatus and into the mold cavity to thereby impregnate the fiber-based preform with the resin. One or more vents operate to evacuate air from the mold.