A mess-free coloring system comprising a coloring medium and optionally one or more coloring utensils is disclosed. The coloring medium can include a substrate with or without decorative effects and one or more coating layers on a surface of the substrate. In various examples, the one or more coating layers include a color-triggering developer, e.g., in the form of a substantially clear resin, and an opaque pigment. Decorative effects integrated with or disposed on the substrate, while initially obscured by the one or more coating layers, can be revealed when the coating layers are mixed with at least one color precursor stored and dispensed from a coloring utensil. The opaque pigment is selected and configured such that, upon receipt of at least one color precursor by the one or more coating layers, a change in the pigment's reflective index occurs as the pigment dissolves into the clear resin developer.

Embodiments are directed to laser-based processes for forming features on the surface of a part. The feature may include a geometric element, a color element, and/or a surface finish element. In some cases, the laser-formed features are formed as a pattern of textured features that produce an aesthetic and/or tactile effect on the surface of the part. In some cases, the texture features may be sufficiently small that they may not be discerned by the unaided human eye. Also, in some cases, a multiple laser-based processes are combined to form a single feature or a finished part having a specific aesthetic and/or tactile effect.

The present invention concerns a method for the partial dyeing, in particular for the colour laser engraving, of plastic components, in particular thermoplastic plastic components, more particularly thermoplastic plastic components, comprising a layer construction as well as the resulting partially dyed, preferably colour laser engraved plastic components, in particular thermoplastic plastic components.

The present disclosure relates to a method for coloring a stainless steel object. The method includes a mechanical step of abrading the surface of a stainless steel object to be colored, slowly heating the object to a predetermined temperature, slowly cooling the object to a predetermined temperature, cleaning and then sealing the object for use. Color is controlled by the degree of abrasion imparted on the stainless steel during the mechanical process. Coarse abrasion results in blue colors while fine abrasions result in copper, gold and bronze colors. Once abraded, the stainless steel is heated slowly in a convection oven to approximately 940 Fahrenheit to fix the color. The device is then slowly cooled to approximately 125 Fahrenheit which stabilizes the stainless steel for use. After cooling the stainless steel can be cleaned with phosphate and sealed using conventional powder coating methods.

A mess-free coloring system comprising a coloring medium and optionally one or more coloring utensils is disclosed. The coloring medium can include a substrate with or without decorative effects and one or more coating layers on a surface of the substrate. In various examples, the one or more coating layers include a color-triggering developer, e.g., in the form of a substantially clear resin, and an opaque pigment. Decorative effects integrated with or disposed on the substrate, while initially obscured by the one or more coating layers, can be revealed when the coating layers are mixed with at least one color precursor stored and dispensed from a coloring utensil. The opaque pigment is selected and configured such that, upon receipt of at least one color precursor by the one or more coating layers, a change in the pigment's reflective index occurs as the pigment dissolves into the clear resin developer.

A process for manufacturing a timepiece or jewellery component, the component being manufactured from a first material, the process including: obtaining the component, having undergone, at a very latest during the obtaining, a treatment directed toward combining the component with a chromic element, the chromic element including at least one pigment capable of reacting to an energy supply and a matrix for binding the pigment; placing the component in a machine capable of at least locally supplying energy to the component; using the energy supply machine in a predefined operating program at least locally to provide energy to the chromic element to bring about a reaction of its pigment; removing the component from the energy supply machine.

A deep black housing for a handheld electronic device is disclosed having one or more high resolution, bleached markings. The bleached markings are significantly lighter than the housing and exhibit a smooth appearance. Methods for preparing a housing having the finish and markings are also disclosed, including housings for use in mobile phones.

Embodiments are directed to laser-based processes for forming features on the surface of a part. The feature may include a geometric element, a color element, and/or a surface finish element. In some cases, the laser-formed features are formed as a pattern of textured features that produce an aesthetic and/or tactile effect on the surface of the part. In some cases, the texture features may be sufficiently small that they may not be discerned by the unaided human eye. Also, in some cases, a multiple laser-based processes are combined to form a single feature or a finished part having a specific aesthetic and/or tactile effect.

A high-temperature color glaze painting pigment includes a color glaze, white toning glaze and colorless toning glaze, wherein the color glaze consists of 50 wt % to 66 wt % high temperature resistant white glaze mineral and 50 wt % to 34 wt % water, the white toning glaze consists of 70 wt % high temperature resistant white glaze mineral and 30 wt % water, and the colorless toning glaze consists of 30 wt % high temperature resistant colorless glaze mineral and 70 wt % water, wherein the weight ratio of the color glaze to the white toning glaze is 12.5:1 to 50:1, the weight ratio of the color glaze to the colorless toning glaze is 20:1 to 100:1. The high temperature colored glaze painting pigment and a method for making a porcelain plate painting thereof can be not only manually completed by artists with their experiences, but completed by an industrial production way.

A deep black housing for a handheld electronic device is disclosed having one or more high resolution, bleached markings. The bleached markings are significantly lighter than the housing and exhibit a smooth appearance. Methods for preparing a housing having the finish and markings are also disclosed, including housings for use in mobile phones.