Proposed are a method of preparing a coated pigment, which includes: preparing a pigment dispersion by mixing and dispersing first and second surfactants with a pigment in water; and coating the pigment by adding an emulsion obtained by mixing and emulsifying a polymerizable surfactant and first and second monomers that differ in glass transition point, to the pigment dispersion, a water-based ink composition containing a thickener and the coated pigment prepared thereby, and a water-based writing instrument including the ink composition. When preparing the coated pigment by the above method, there are advantages of improving pigment dispersion stability and adsorption stability of a coating layer while controlling hardness and flexibility due to the glass transition point difference. In addition, when using the coated pigment as an ink pigment, adhesiveness and lubricity can be improved while providing a better writing experience.
Proposed are a method of preparing a coated pigment, which includes: preparing a pigment dispersion by mixing and dispersing first and second surfactants with a pigment in water; and coating the pigment by adding and mixing an emulsion obtained by mixing and emulsifying a monomer, a cross-linker, and a polymerizable surfactant, to and with the pigment dispersion, a water-based ink composition containing a monovalent cationic metal ion thickener and the coated pigment prepared thereby, and a water-based writing instrument including the ink composition. When preparing the coated pigment by the above method, there are advantages of improving pigment dispersion stability and adsorption stability of a coating layer and controlling strength according to the use of the cross-linker. In addition, when using the coated pigment as an ink pigment, adhesiveness and lubricity can be improved while providing a better writing experience.
Document markers; Highlighting markers; Marking pens; Fountain pens; Stationery; Ball pens; Felt marking pens; Mechanical pencils; Pencils; Drawing pens; Color pencils; Colour pens; Crayons; Pens; Writing instruments; Pen and pencil boxes; Highlighter pens; Pencil leads; Books in the field of educational arts and crafts activities; Modelling clay; Modelling paste; Catalogs in the field of educational arts and crafts activities.
Markers; Marking pens; Fountain pens; Stationery; Ball pens; Felt marking pens; Mechanical pencils; Pencils; Drawing pens; Color pencils; Colour pens; Crayons; Pens; Writing instruments; Pen and pencil boxes; Highlighter pens; Mechanical pencil leads; Books in the field of education; Modelling clay; Modelling paste; Catalogues in the field of education.
Markers; Marking pens; Fountain pens; Stationery; Ball pens; Felt marking pens; Mechanical pencils; Pencils; Drawing pens; Color pencils; Color pens; Crayons; Pens; Writing instruments; Pencil or pen boxes; Highlighter pens; Mechanical pencil leads; Books in the field of education; Modelling clay; Modelling paste; Catalogs in the field of education
Disclosed is a knock-type pen, which includes: a housing having a ‘¬’-shaped guide groove formed at a top end thereof; a pen seam accommodated in the housing; a pressing member having a moving protrusion provided at a lower end thereof and movably inserted into the guide groove; a rotating member rotatably coupled to an outer circumference of the top end of the housing and having a ‘l’-shaped slide groove into which an end of the moving protrusion inserted into the guide groove is movably inserted; and a knock unit disposed between the pressing member and the pen seam and configured to allow an end of the pen seam to move in and out at a lower end of the housing when the pressing member is pressed.
B43K 24/08 - Mécanismes de sélection de sortie, de blocage ou de retrait des pointes à écrire pour verrouiller une seule pointe à écrire dans les positions tout à fait sortie ou tout à fait rentrée uniquement actionnés par des boutons-poussoirs
A knock type pen includes a body in which a lead and a spring which provides an elastic force to the lead are received, and a knock section which is coupled to a rear end of the body and includes a knock body and a rotary cam to push the lead out of a tip of the body or receive the lead inside, wherein the knock type pen includes a cutout groove which extends in one direction along an axial direction of the body, a slit hole which extends along a downward direction from an upper end of the cutout groove, an insert hole which is formed in a direction perpendicular to the slit hole from the upper end of the cutout groove, and a locking section which moves up and down along the slit hole.
B43K 24/04 - Mécanismes de sélection de sortie, de blocage ou de retrait des pointes à écrire pour verrouiller une seule pointe à écrire dans les positions tout à fait sortie ou tout à fait rentrée uniquement actionnés par des moyens coulissant longitudinalement dans des rainures
B43K 7/12 - Stylographes à bille à pointes à bille rétractables
B43K 24/08 - Mécanismes de sélection de sortie, de blocage ou de retrait des pointes à écrire pour verrouiller une seule pointe à écrire dans les positions tout à fait sortie ou tout à fait rentrée uniquement actionnés par des boutons-poussoirs
B43K 24/06 - Mécanismes de sélection de sortie, de blocage ou de retrait des pointes à écrire pour verrouiller une seule pointe à écrire dans les positions tout à fait sortie ou tout à fait rentrée uniquement actionnés par des moyens tournants
B43K 24/02 - Mécanismes de sélection de sortie, de blocage ou de retrait des pointes à écrire pour verrouiller une seule pointe à écrire dans les positions tout à fait sortie ou tout à fait rentrée uniquement
A knock type pen including a housing, a lead which is received in the housing and has an end to which a nib is coupled, and a knock element which protrudes from top of the housing and is pushed, a regulating element which is rotatably installed on an outer circumference of the housing, and a locking element which is provided in the housing and moves up and down by rotation of the regulating element, wherein when the locking element moves up, a press of the knock element is limited by the locking element.
B43K 24/06 - Mécanismes de sélection de sortie, de blocage ou de retrait des pointes à écrire pour verrouiller une seule pointe à écrire dans les positions tout à fait sortie ou tout à fait rentrée uniquement actionnés par des moyens tournants
B43K 24/04 - Mécanismes de sélection de sortie, de blocage ou de retrait des pointes à écrire pour verrouiller une seule pointe à écrire dans les positions tout à fait sortie ou tout à fait rentrée uniquement actionnés par des moyens coulissant longitudinalement dans des rainures
B43K 7/12 - Stylographes à bille à pointes à bille rétractables
B43K 24/02 - Mécanismes de sélection de sortie, de blocage ou de retrait des pointes à écrire pour verrouiller une seule pointe à écrire dans les positions tout à fait sortie ou tout à fait rentrée uniquement
B43K 24/08 - Mécanismes de sélection de sortie, de blocage ou de retrait des pointes à écrire pour verrouiller une seule pointe à écrire dans les positions tout à fait sortie ou tout à fait rentrée uniquement actionnés par des boutons-poussoirs
A knock type pen including a housing in which a lead storing ink is received, a knock element which is placed moveably up and down in the housing, and has a button section protruding from an open upper side of the housing in an upper end part and a toothed protrusion coupled to a lower end part, and a rotary cam which is disposed between the lead and the knock element and rotatably placed in the housing, and has a guide protrusion which comes into contact with the toothed protrusion.
B43K 24/08 - Mécanismes de sélection de sortie, de blocage ou de retrait des pointes à écrire pour verrouiller une seule pointe à écrire dans les positions tout à fait sortie ou tout à fait rentrée uniquement actionnés par des boutons-poussoirs
B43K 7/12 - Stylographes à bille à pointes à bille rétractables
Markers; Marking pens; Fountain pens; Stationery; Ball pens; Felt marking pens; Mechanical pencils; Pencils; Drawing pens; Color pencils; Color pens; Crayons; Pens; Pencil or pen boxes; Highlighter pens; Mechanical pencil leads; Books in the field of education; Modelling clay; Modelling paste; Catalogs in the field of education
Markers; Marking pens; Fountain pens; Stationery; Ball pens; Felt marking pens; Mechanical pencils; Pencils; Drawing pens; Color pencils; Color pens; Crayons; Pens; Writing instruments; Pencil or pen boxes; Highlighter pens; Mechanical pencil leads; Books in the field of educational arts and crafts activities; Modelling clay; Modelling paste; Catalogs in the field of educational arts and crafts activities
The present invention relates to relates to a thermochromic writing instrument that may use thermochromic ink and erase a written content by generating heat with a frictional member provided thereat.
An exemplary embodiment of the present invention provides a thermochromic writing instrument including: a body configured to be provided with a knock mechanism that exposes a thermochromic writing part to the outside or accommodates the thermochromic writing part; a rib configured to be provided at an inner circumferential surface of the body to protrude in a central line direction of the body; a moving member configured to move along the inside of the body; a frictional member configured to be provided at one side of the moving member to protrude out of the body; a weight configured to be provided at the other side of the moving member to contact or to not contact the knock mechanism according to movement of the moving member; and a guide configured to be disposed between the outside of the moving member and the inside of the body to move along the inside of the body and to be spaced apart from an outer circumferential surface of the moving member by a predetermined interval.
B43K 24/03 - Mécanismes de sélection de sortie, de blocage ou de retrait des pointes à écrire pour verrouiller une seule pointe à écrire dans les positions tout à fait sortie ou tout à fait rentrée uniquement actionnés par agitation ou par inclinaison
B43K 29/02 - Combinaisons d'instruments pour écrire avec d'autres objets avec des gommes
Markers; Marking pens; Fountain pens; Stationery; Ball pens; Felt marking pens; Mechanical pencils; Pencils; Drawing pens; Color pencils; Color pens; Crayons; Pens; Pencil or pen boxes; Highlighter pens; Mechanical pencil leads; Books in the field of education; Modelling clay; Modelling paste; Molds for modelling clays; Catalogues in the field of education
Markers; Marking pens; Fountain pens; Stationery; Ball pens; Felt marking pens; Mechanical pencils; [Pencils; ] Drawing pens; [ Color pencils; ] Color pens; Crayons; Pens; Writing instruments; Pencil or pen boxes; Highlighter pens; [ Mechanical pencil leads; Books in the field of education;] Modelling clay; Modelling paste; Molds for modelling clays [ ; Catalogues in the field of education ]
The present invention relates to thermochromic micro particles capable of stably implementing a high chromogenic property and a decolorization property and having an improved erasing property, thermal resistance, and chemical resistance, and a thermochromic ink composition, a writing apparatus, and a smart window using the same. The thermochromic micro particles comprise a core part including a phase change material and a dye, the phase change material including a phenol-based compound containing an aliphatic functional group having a carbon number of 6 or more; and a shell layer including a polymer resin.
B41M 5/28 - Thermographie utilisant des composés thermochromes ou des couches contenant des cristaux liquides, des microcapsules, des colorants blanchissables ou des composés thermodégradables, p. ex. libérant un gaz
B41M 5/333 - Composants pour le développement des couleurs, p. ex. composés acides
C09D 11/50 - Encres sympathiques, encres changeant de couleur ou encres similaires
C09D 11/17 - Encres pour écrire caractérisées par des agents colorants
C09D 163/00 - Compositions de revêtement à base de résines époxyCompositions de revêtement à base de dérivés des résines époxy
E06B 9/24 - Écrans ou autres dispositifs protecteurs contre la lumière, notamment contre la lumière solaireÉcrans similaires pour protection de l'intimité ou pour des raisons esthétiques
The present invention relates to thermochromic micro particles capable of stably implementing a high chromogenic property and a decolorization property and having an improved erasing property, thermal resistance, and chemical resistance, and a thermochromic ink composition, a writing apparatus, and a smart window using the same. The thermochromic micro particles comprise a core part including a phase change material, a dye, and a developer, the phase change material including at least one selected from the group consisting of at least one chain hydrocarbon having a carbon number of 8 or more, a hydrated inorganic salt, alcohol having a carbon number of 3 or more, and polyalkyleneglycol; and a shell layer including a polymer resin.
B41M 5/28 - Thermographie utilisant des composés thermochromes ou des couches contenant des cristaux liquides, des microcapsules, des colorants blanchissables ou des composés thermodégradables, p. ex. libérant un gaz
B41M 5/333 - Composants pour le développement des couleurs, p. ex. composés acides
C09D 11/50 - Encres sympathiques, encres changeant de couleur ou encres similaires
E06B 9/24 - Écrans ou autres dispositifs protecteurs contre la lumière, notamment contre la lumière solaireÉcrans similaires pour protection de l'intimité ou pour des raisons esthétiques
