A refill for a writing tool includes an ink containing tube that is made from a resin material and formed in a straight cylindrical shape, and a writing tip that is attached to an end of the ink containing tube. A press-fit portion, formed at the end of the ink containing tube, has a thickness being made thickened toward an inner circumferential surface and has an opening hole penetrating in an axial direction at a central portion of the press-fit portion. The writing tip or a relay member supporting the writing tip is press-fitted and attached to the press-fit portion. The refill for a writing tool can ensure a necessary and sufficient amount of ink stored without expanding an outer diameter of the ink containing tube, and sufficiently secure mechanical strength of an end portion, and a writing tool using the same can be provided.

A refill for a writing tool includes an ink containing tube that is made from a resin material and formed in a straight cylindrical shape, and a writing tip that is attached to an end of the ink containing tube. A press-fit portion, formed at the end of the ink containing tube, has a thickness being made thickened toward an inner circumferential surface and has an opening hole penetrating in an axial direction at a central portion of the press-fit portion. The writing tip or a relay member supporting the writing tip is press-fitted and attached to the press-fit portion. The refill for a writing tool can ensure a necessary and sufficient amount of ink stored without expanding an outer diameter of the ink containing tube, and sufficiently secure mechanical strength of an end portion, and a writing tool using the same can be provided.

A compact system to mix and create color materials is disclosed. The present invention generally related to a color creative system, in which a particular system is capable to create a final mix color of materials from multiple material reservoirs and dispensing the mixed color of material via applicator of choices, all in a single system that can be as small as a pen or a person's thumb or larger as desired. The system is manually operated.

Provided is a cosmetic applicator which is excellent in a stability of discharging a liquid cosmetic and excellent as well in an aging stability of a liquid cosmetic and which makes it easy to observe the end of consuming the liquid cosmetic regardless of whether or not an inside of a reservoir is visible and whether or not a coating part is a ballpoint pen type. The cosmetic applicator is prepared by providing a cylindrical reservoir, a coating part mounted at a tip of the cylindrical reservoir, a liquid cosmetic and a liquid follower which is brought into contact with the liquid cosmetic and moves following a reduction in the liquid cosmetic and which has a hue different from that of the liquid cosmetic, wherein a volume of the follower is 0.5 or more based on a volume of the liquid cosmetic.

Provided is a cosmetic applicator which is excellent in a stability of discharging a liquid cosmetic and excellent as well in an aging stability of a liquid cosmetic and which makes it easy to observe the end of consuming the liquid cosmetic regardless of whether or not an inside of a reservoir is visible and whether or not a coating part is a ballpoint pen type. The cosmetic applicator is prepared by providing a cylindrical reservoir, a coating part mounted at a tip of the cylindrical reservoir, a liquid cosmetic and a liquid follower which is brought into contact with the liquid cosmetic and moves following a reduction in the liquid cosmetic and which has a hue different from that of the liquid cosmetic, wherein a volume of the follower is 0.5 or more based on a volume of the liquid cosmetic.

A refill for a writing tool includes an ink containing tube that is made from a resin material and formed in a straight cylindrical shape, and a writing tip that is attached to an end of the ink containing tube. A press-fit portion, formed at the end of the ink containing tube, has a thickness being made thickened toward an inner circumferential surface and has an opening hole penetrating in an axial direction at a central portion of the press-fit portion. The writing tip or a relay member supporting the writing tip is press-fitted and attached to the press-fit portion. The refill for a writing tool can ensure a necessary and sufficient amount of ink stored without expanding an outer diameter of the ink containing tube, and sufficiently secure mechanical strength of an end portion, and a writing tool using the same can be provided.

A refill for a writing tool includes an ink containing tube that is made from a resin material and formed in a straight cylindrical shape, and a writing tip that is attached to an end of the ink containing tube. A press-fit portion, formed at the end of the ink containing tube, has a thickness being made thickened toward an inner circumferential surface and has an opening hole penetrating in an axial direction at a central portion of the press-fit portion. The writing tip or a relay member supporting the writing tip is press-fitted and attached to the press-fit portion. The refill for a writing tool can ensure a necessary and sufficient amount of ink stored without expanding an outer diameter of the ink containing tube, and sufficiently secure mechanical strength of an end portion, and a writing tool using the same can be provided.