A vented output device for uniformly mixed liquid comprising a barrel defining a reservoir for containing the uniformly mixed liquid, and at least one vent channel extending from a first vent opening in fluid flow communication with an exterior of the device and second vent opening in fluid flow communication with the reservoir. A binary ink storage assembly includes multiple glass ampoules arranged in pairs, which are placed inside the barrel in parallel. The invention provides a reliable, simple and low-cost output device for solving the problem of not allowing the liquid to be uniformly mixed and output when a chemiluminescent marker or pen is activated.

A writing instrument including a main body provided with a writing tip. The writing tip being supplied with ink by a free ink-type reservoir equipped with a pressure regulating device for regulating the pressure within the reservoir. The pressure regulating device includes at least one microfluidic valve.

To provide an applicator capable of exchanging air after discharging the application liquid even if the applicator is equipped with a valve mechanism that opens its valve by increasing the internal pressure of the ink tank.

An applicator includes a valve mechanism that communicates an application liquid tank and an applying part. The valve mechanism has at least a valve stem and a valve holder for holding the valve stem therein, the application liquid can flow through a gap between the valve stem and the valve holder, the valve stem is formed with an air exchange hole, and, the air exchange hole can be opened and closed by an opening/closing member that opens/closes when the pressure on the application liquid tank side becomes negative or positive compared to that on the applying part side.

The invention relates to a dev ice for applying a viscous substance, in particular for the purposes of cosmetics, writing, painting, drawing, and/or marking, with a tank (40) for tire substance, an application apparatus (2), and a conveying device (3), which is configured such as to convey the substance out of the tank (40) to the application device. According to the invention, provision is made for the conveying device (3) to comprise a cylinder (10), a piston (30) arranged such as to be axially displaceable in the cylinder, a pump plunger (20) for the axial displacement of the piston (30), a first connection channel (41) between the cylinder (10) and the tank (40), and a second connection channel (21) between the cylinder (10) and the application apparatus (2), the piston (30) to be adjustable in relation to the pump plunger (20), for the piston (30) to open or close the first connection channel (41) depending on the setting in relation to the cylinder (10), and for the piston (30), depending on the position in relation to the pump plunger (20), to open or close the second connection channel (21).

Provided are a liquid storage and release device and a pen comprising the device. The liquid storage and release device comprises a tube shell (1), a capsule-like liquid container (3), a piercing component (4) and a piston rod (5), wherein the tube shell (1) is open at one end and closed at the other end, and the interior thereof is a tube cavity (2); the capsule-like liquid container (3) and/or the piercing component (4) is/are slidably arranged in the tube cavity (2); one end of the piston rod (5) is slidably arranged in the tube cavity (2) of the tube shell (1), and the other end of the piston rod (5) is provided with a liquid release opening (6); and the piston rod (5) is provided with a liquid channel through which the liquid release opening (6) is in communication with the tube cavity (2). When the piston rod (5) slides towards the interior of the tube cavity (2), the capsule-like liquid container (3) and the piercing component (4) apply pressure to each other under the action of the piston rod (5), so that the piercing component (4) pierces the capsule-like liquid container (3) so as to release the liquid pre-stored in the capsule-like liquid container (3).

A direct-liquid writing instrument includes a penholder, an ink feeder and a nib. One end of the penholder is provided with a writing portion, and the other end of the penholder is provided with an ink storage portion. The nib is partially inserted into the writing portion. The direct-liquid writing instrument also includes a first baffle and a second baffle that are spaced apart from each other to form an air barrier layer. The first baffle is in contact with the ink of the ink storage portion, and the second baffle is adjacent the writing portion. Additionally, the first baffle is provided with a first air-guiding channel, and a second air-guiding channel is provided between the second baffle and the ink feeder. The ink feeder passes through the first baffle, the air barrier layer, and the second baffle to deliver the ink to the nib.

A direct-liquid writing instrument includes a penholder, an ink feeder and a nib. One end of the penholder is provided with a writing portion, and the other end of the penholder is provided with an ink storage portion. The nib is partially inserted into the writing portion. The direct-liquid writing instrument also includes a first baffle and a second baffle that are spaced apart from each other to form an air barrier layer. The first baffle is in contact with the ink of the ink storage portion, and the second baffle is adjacent the writing portion. Additionally, the first baffle is provided with a first air-guiding channel, and a second air-guiding channel is provided between the second baffle and the ink feeder. The ink feeder passes through the first baffle, the air barrier layer, and the second baffle to deliver the ink to the nib.

Apparatus for concealing vitiligo is provided. The apparatus may include a cosmetic marker for applying a solution for concealing vitiligo. The cosmetic marker may support enhanced flow of the solution from the marker onto a portion of depigmented skin. The cosmetic marker may include a marker barrel. The cosmetic marker may also include a fibrous reservoir positioned in the marker barrel. The fibrous reservoir may be saturated with the solution. The fibrous reservoir may have a density of preferably between 0.12 g/cc-0.14 g/cc. The cosmetic marker may also include a polyester nib in fluid communication with the fibrous reservoir. The polyester nib may have a porosity of between 65%-70%. The cosmetic marker may also include the solution. The solution may include a colorant and dihydroxyacetone.

Apparatus for concealing vitiligo is provided. The apparatus may include a cosmetic marker for applying a solution for concealing vitiligo. The cosmetic marker may support enhanced flow of the solution from the marker onto a portion of depigmented skin. The cosmetic marker may include a marker barrel. The cosmetic marker may also include a fibrous reservoir positioned in the marker barrel. The fibrous reservoir may be saturated with the solution. The fibrous reservoir may have a density of preferably between 0.12 g/cc-0.14 g/cc. The cosmetic marker may also include a polyester nib in fluid communication with the fibrous reservoir. The polyester nib may have a porosity of between 65%-70%. The cosmetic marker may also include the solution. The solution may include a colorant and dihydroxyacetone.

A heat reactive composition and applicator apparatus and method are set forth. The heat reactive composition is applicable to the surface of an existing substrate to permanently scorch the existing substrate at places where contact with the composition of matter is effected. The exothermic reaction of the composition of matter constrains the reaction to portions of the substrate that are in immediate contact with the composition only. Intricate patterns and designs are thereby permanently transferrable onto or into the surface of the existing substrate by action of heat with a controlled and deliberate intent.