Abstract: A cosmetic ink composition comprises a particulate material, a (meth)acrylic acid homopolymer or salt thereof, and a rheology modifier. The particulate material can have a Particle Size Distribution D50 of about 100 nm to about 2,000 nm. The (meth)acrylic acid homopolymer or salt thereof can have a weight average molecular weight of less than about 20,000 daltons. The rheology modifier can be selected from the group consisting of alkali swellable emulsion polymers, hydrophobically modified alkali swellable emulsion polymers, and combinations thereof. The cosmetic ink composition can have a first dynamic viscosity of greater than about 1,100 cP at a shear rate of 0.1 sec?1 measured at 25° C. and a second dynamic viscosity of less than about 100 cP at a shear rate of 1,000 sec?1 measured at 25° C.

Abstract: A skin care composition is an emulsion having a continuous phase and a dispersed phase. The continuous phase includes water and glycerin. The dispersed phase includes at least two emollients. The composition also includes a feel modifying particle and an emulsifier. IN some examples, the feel modifying particle can include modified corn starch and colloidal oatmeal. The emulsifier is cetearyl olivate and sorbitan olivate. The composition can be used to soothe irritated skin; provide relief to itchy, dry, irritated skin; and/or moisturize and soften skin.

Abstract: A cosmetic ink composition comprises a particulate material, a polymeric dispersant having a weight average molecular weight of less than about 20,000 daltons, and a polymeric rheology modifier. The particulate material can have a Particle Size Distribution D50 of about 100 nm to about 2,000 nm. The cosmetic ink composition can undergo controlled syneresis, forming a weak colloidal gel phase and a particle-lean, low viscosity phase, which can be printed without interventions such as agitation, mixing, or re-circulation to homogenize the composition.

Abstract: A device and method for applying a material to a hard surface. The device has a sensor and one or more applicator nozzles. The device further includes a reservoir for containing a material to be deposited, and a CPU. The method includes providing information from the sensor about the surface to the CPU, which uses the information to identify where the material is to be deposited and/or how much to deposit.

Abstract: Included are embodiments for providing a service station routine. Some embodiments of a system include a service station for receiving a handheld jet dispensing apparatus and a memory component that stores logic. When the logic is executed by a processor, the logic may cause the system to, in response to the service station receiving the handheld jet dispensing apparatus, identify the handheld jet dispensing apparatus, where identifying the handheld jet dispensing apparatus includes determining a time of a previous maintenance to the handheld jet dispensing apparatus. In some embodiments, the logic causes the system to determine whether the time of the previous maintenance meets a predetermined threshold, in response to determining that the time of the previous maintenance meets a predetermined threshold, determine a desired maintenance routine to execute and execute the desired maintenance routine, and record a current time as the time of the previous maintenance.

Abstract: A personalized skin care system that includes a dispensing device, at least one removable cartridge, a single-dose pod, and a mixing element. The removable cartridge contains a sufficient amount of skin care active to make several doses of a personalized skin care composition. The single-use pod contains a sufficient amount of base ingredient to make a single dose of personalized care composition. To provide a personalized skin care composition, one or more personalization factors are inputted into the system. The hermetically-sealed, single-use pod is placed in the dispensing device such that it is in fluid communication with the replaceable cartridge containing the skin care active. The skin care active(s) is transported to the single-dose pod and mixed with the mixing element. However, the mixing element does not come into contact with the ingredients inside the single-use pod. The resulting personalized skin care composition can then be dispensed to a user.

Abstract: A device for analyzing and treating tonal imperfections on human skin. The device, or apparatus has an applicator comprising a head and one or more nozzles, preferably the nozzles are arranged in an array. The apparatus further has a reservoir comprising a skin treatment composition, a sensor, and a CPU. The sensor takes an image of at least 10 ?m2 of skin. The CPU analyzes the image to calculate a localized L value of individual pixels or group of pixels. The CPU then compares the local L value to a background L value to identify one or more skin deviations, and wherein the sensor is in wireless communication with the CPU, and wherein the CPU is adjacent the sensor or is remotely located. Further, the sensor may be enclosed within an apparatus handle and the CPU is either within the handle or external to the handle. In another embodiment of this invention, there are two or more CPUs and the sensor can be in wireless communication with none, one or more than one CPU.

Abstract: A device for analyzing and treating tonal imperfections on human skin. The device, or apparatus has an applicator comprising a head and one or more nozzles, preferably the nozzles are arranged in an array. The apparatus further has a reservoir comprising a skin treatment composition, a sensor, and a CPU. The sensor takes an image of at least 10 ?m2 of skin. The CPU analyzes the image to calculate a localized L value of individual pixels or group of pixels. The CPU then compares the local L value to a background L value to identify one or more skin deviations, and wherein the sensor is in wireless communication with the CPU, and wherein the CPU is adjacent the sensor or is remotely located. Further, the sensor may be enclosed within an apparatus handle and the CPU is either within the handle or external to the handle. In another embodiment of this invention, there are two or more CPUs and the sensor can be in wireless communication with none, one or more than one CPU.

Abstract: A cosmetic ink composition comprises a particulate material, a polymeric dispersant, a rheology modifier, and a surface tension modifier, wherein the surface tension modifier is selected from the group consisting of C1-C16 alcohols, C5-C18 diols, and mixtures thereof. The particulate material can have a Particle Size Distribution D50 of about 100 nm to about 2,000 nm. The rheology modifier can be selected from the group consisting of alkali swellable emulsion polymers, hydrophobically modified alkali swellable emulsion polymers, and combinations thereof. The cosmetic ink composition can have a surface tension of from about 20 to about 45 mN/m.

Abstract: Included are embodiments of an angled cartridge assembly for modifying a treating surface. These embodiments may include a reservoir for storing a treatment composition, the treatment composition for being applied to the treating surface. Embodiments may also include a body portion that is coupled to the reservoir, where the body portion comprises a base surface and a dispensing surface, where the dispensing surface is disposed opposite the base surface on the angled cartridge assembly, and where the dispensing surface is disposed in a nonparallel configuration relative to the base surface.

Abstract: A method of camouflaging a tonal imperfection comprising the steps of: identifying a skin tone of a user comprising a tonal imperfection; instructing the user to select a pigmented cosmetic composition adapted to camouflage the tonal imperfection based on the user's skin tone; selecting the pigmented cosmetic composition; and selectively targeting and depositing the pigmented cosmetic composition substantially only onto the tonal imperfection; wherein the pigmented cosmetic composition comprises an average composition L* value of about 10 to about 40 units greater than an average skin L* value of the user. The pigmented cosmetic composition can comprise a particular set of L*C*h* values such that when deposited onto tonal imperfections, it can result in natural, flawless looking skin, while still remaining substantially undetectable to the naked eye.

Abstract: Included are embodiments for providing a service station routine. Some embodiments of a system include a service station for receiving a handheld jet dispensing apparatus and a memory component that stores logic. When the logic is executed by a processor, the logic may cause the system to, in response to the service station receiving the handheld jet dispensing apparatus, identify the handheld jet dispensing apparatus, where identifying the handheld jet dispensing apparatus includes determining a time of a previous maintenance to the handheld jet dispensing apparatus. In some embodiments, the logic causes the system to determine whether the time of the previous maintenance meets a predetermined threshold, in response to determining that the time of the previous maintenance meets a predetermined threshold, determine a desired maintenance routine to execute and execute the desired maintenance routine, and record a current time as the time of the previous maintenance.

Abstract: A cosmetic ink composition comprises a particulate material, a polymeric dispersant, a rheology modifier, and a surface tension modifier, wherein the surface tension modifier is selected from the group consisting of C1-C16 alcohols, C5-C18 diols, and mixtures thereof. The particulate material can have a Particle Size Distribution D50 of about 100 nm to about 2,000 nm. The rheology modifier can be selected from the group consisting of alkali swellable emulsion polymers, hydrophobically modified alkali swellable emulsion polymers, and combinations thereof. The cosmetic ink composition can have a surface tension of from about 20 to about 45 mN/m.

Abstract: A cosmetic ink composition comprises a particulate material, a polymeric dispersant, a rheology modifier, and a surface tension modifier, wherein the surface tension modifier is selected from the group consisting of C1-C16 alcohols, C5-C18 diols, and mixtures thereof. The particulate material can have a Particle Size Distribution D50 of about 100 nm to about 2,000 nm. The rheology modifier can be selected from the group consisting of alkali swellable emulsion polymers, hydrophobically modified alkali swellable emulsion polymers, and combinations thereof. The cosmetic ink composition can have a surface tension of from about 20 to about 45 mN/m.

Abstract: Included are embodiments of an angled cartridge assembly for modifying a treating surface. These embodiments may include a reservoir for storing a treatment composition, the treatment composition for being applied to the treating surface. Embodiments may also include a body portion that is coupled to the reservoir, where the body portion comprises a base surface and a dispensing surface, where the dispensing surface is disposed opposite the base surface on the angled cartridge assembly, and where the dispensing surface is disposed in a nonparallel configuration relative to the base surface.

Abstract: A method of camouflaging a tonal imperfection comprising the steps of: identifying a skin tone of a user comprising a tonal imperfection; instructing the user to select a pigmented cosmetic composition adapted to camouflage the tonal imperfection based on the user's skin tone; selecting the pigmented cosmetic composition; and selectively targeting and depositing the pigmented cosmetic composition substantially only onto the tonal imperfection; wherein the pigmented cosmetic composition comprises an average composition L* value of about 10 to about 40 units greater than an average skin L* value of the user. The pigmented cosmetic composition can comprise a particular set of L*C*h* values such that when deposited onto tonal imperfections, it can result in natural, flawless looking skin, while still remaining substantially undetectable to the naked eye.

Abstract: Included are embodiments for providing a service station routine. Some embodiments of a system include a service station for receiving a handheld jet dispensing apparatus and a memory component that stores logic. When the logic is executed by a processor, the logic may cause the system to, in response to the service station receiving the handheld jet dispensing apparatus, identify the handheld jet dispensing apparatus, where identifying the handheld jet dispensing apparatus includes determining a time of a previous maintenance to the handheld jet dispensing apparatus. In some embodiments, the logic causes the system to determine whether the time of the previous maintenance meets a predetermined threshold, in response to determining that the time of the previous maintenance meets a predetermined threshold, determine a desired maintenance routine to execute and execute the desired maintenance routine, and record a current time as the time of the previous maintenance.

Abstract: A device and method for applying a material to a hard surface. The device has a sensor and one or more applicator nozzles. The device further includes a reservoir for containing a material to be deposited, and a CPU. The method includes providing information from the sensor about the surface to the CPU, which uses the information to identify where the material is to be deposited and/or how much to deposit.

Abstract: A personal care device for modifying a keratinous surface having a sensor, a treatment element adapted to deposit a personal care composition, a feedback element, and a processor. The feedback element can be activated during deposition of the personal care composition. The personal care device can analyze a keratinous surface, identify keratinous imperfections, and then modify the keratinous imperfection by depositing a personal care composition. The feedback element can be intermittently activated during deposition and can emit a feedback signal that corresponds to the deposition of the personal care composition to alert the user as to how the personal care device is working and/or when the modification process is complete.

Abstract: A cartridge assembly for modifying a treating surface, having a body that defines a reservoir that has a standpipe. The reservoir stores a treatment composition. The body comprises a reservoir wall and a die wall that collectively define a reservoir volume. The standpipe is defined by a standpipe wall that extends into the reservoir from a standpipe base, wherein the standpipe base comprises a portion of the die wall. The standpipe base and the standpipe wall collectively define a standpipe volume. The ratio of the reservoir volume to the standpipe volume is from about 50:1 to about 3:1, preferably from about 20:1 to about 4:1, and more preferably about 8:1. Further, the ratio of the surface area of the die wall to the standpipe base is from about 1.1:1 to about 3:1.