A three-dimensionally printed object includes a plurality of different material regions that together define a surface region of the object. The plurality of different material regions includes a first material region and a second material region. The first material region has a first color, and the second material region has a second color that is different from the first color. The different material regions overlap from each other within the object by different amounts viewed from different directions so that different proportions of light from the plurality of different material regions are visible to an observer viewing the surface region of the three-dimensionally printed object from different view directions, different view angles, and with illumination lighting the surface region at different angles. A coloration of the surface region is altered based on the proportions of light from the plurality of different material regions visible to the observer.

A blow molded monolayer article. The article has a hollow body defined by a wall. The wall has one or more regions comprising a first composition and one or more regions formed by a second composition.

A system and methods for solid freeform fabrication of an object is disclosed. The system comprises a solid freeform fabrication apparatus having a plurality of dispensing heads, a building material supply apparatus configured to supply a plurality of building materials to the fabrication apparatus, and a control unit configured for controlling the fabrication apparatus and the supply apparatus based on an operation mode selected from a plurality of predetermined operation modes.

A method for forming a three-dimensional object uses a three-dimensional object printer to form a printed part and an injection molding system is used to form a molded part that adjoins the printed part and completes the three-dimensional object formation. The method includes operating an ejector head of a three-dimensional object printer to eject drops of material onto a platen to form the printed part, operating an actuator to move the printed part from the platen to a cavity of an injection mold of an injection molding system, and operating injectors of the injection molding system to inject material into the cavity of the injection mold to form the molded part that adjoins the printed part to form the three-dimensional object.

Methods and devices use a three-dimensional scanner and a three-dimensional printing device operatively connected to a processor. The three-dimensional scanner automatically determines a size and shape of an item to be packaged and the processor automatically identifies information corresponding to the item to be packaged. The processor automatically controls the three-dimensional printing device to form a container that is customized to match the size and shape of the item to be packaged (using a continuous additive process of forming successive layers of material in different shapes). When forming the container, the processor also automatically controls the three-dimensional printing device to form a label as part of the container. The label includes color variations to visually convey the information identified by the processor.

In an example, a virtual build volume comprising a representation of at least a part of an object to be generated in additive manufacturing is segmented into a plurality of nested segments comprising a core segment, an inner peripheral segment and an outer peripheral segment. Additive manufacturing control instructions may be generated for the nested segments. The control instructions for the core segment may provide a first region of the object corresponding to the core segment and having a first color. The control instructions for the outer peripheral segment may provide a second color for a second region of the object corresponding to the outer peripheral segment. The control instructions for the inner peripheral segment may provide a third color for a third region of the object corresponding to the inner peripheral segment, wherein a color of the third region is determined so as to at least partially visually mask the first region.

Provided is a three-dimensional object formation method including: a first step of forming a film by delivering a first liquid containing at least water and a hydrogel precursor: and a second step of curing the film formed in the first step, wherein the first step and the second step are repeated a plurality of times.

The method comprises the following steps: (a) forming a plane powder layer (19) comprising at least one cosmetic powder; (b) applying a powder binding activator and binding the powder in at least a first region of the powder layer (19); (c) forming an additional plane powder layer (19) comprising at least one cosmetic powder, the additional layer (19) at least partially covering the previous layer (19); (d) applying a powder binding activator and binding the powder in at least a second region of the additional powder layer (19); (e) repeating steps (c) to (d) until the three-dimensional object is formed.
The cosmetic composition comprised in the three-dimensional object or forming the three-dimensional object can be restored after the three-dimensional object is formed.

Solid-state barcodes, paints containing the solid-state barcodes, and methods of manufacturing the paint are disclosed. The solid-state barcode may include a core portion and a shell portion substantially surrounding the core portion. One or both of the core portion and the shell portion may include a pattern of two or more regions, the pattern configured to encode information. Such solid-state barcodes can be attached at arbitrary positions on objects by applying the paint containing the barcode onto the objects.

Methods and systems are provided for color printing. For example, a method of printing is provided, including printing a three-dimensional object onto a substrate using a printing device. The method includes receiving color graphic design information at the printing device and receiving the substrate at the printing device. The color graphic design information represents a color graphic. The method further includes printing a lower color graphic layer of the three-dimensional object onto the substrate using the color graphic design information and printing a transparent structural layer of the three-dimensional object onto the lower color graphic layer. The method further includes printing an upper color graphic layer of the three-dimensional object onto the transparent structural layer using the color graphic design information. A combination of the upper color graphic layer and the lower color graphic layer visually matches the color graphic.