49 results about "Ink eraser" patented technology

A two piece eraser assembly for use as a rotary tool attachment for abrading surfaces enables quick and easy replacement of worn eraser disks without requiring the assistance of any hand held tools in either the removal or in the reinstallation process. The assembly, including aftermarket replacement parts therefor, comprise an eraser disk and an eraser hub for mounting and holding the eraser disk. The eraser hub includes upper and lower surfaces, wherein the eraser hub upper surface features a centrally positioned throughbore, a flange at the peripheral edge of the hub and a stub shaft on the lower surface positioned axially with the throughbore. The eraser hub includes a plurality of spaced apertures for engaging with and detachably locking eraser disk extensions on the backside, so the eraser disk is mounted flush with the eraser hub. The upper surface of the eraser disk includes a central recess and an aperture in the recess keyed for axially alignment with the throughbore of the eraser hub. The eraser disk is also equipped with a plurality of abrading teeth running radially from the central recess to the peripheral edge thereof. The lower surface opposite the upper surface of the eraser disk further comprises a plurality of mounting elevations keyed for engaging with the spaced apertures or slots in the eraser hub for securely locking the eraser disk to the eraser hub, avoiding slippage of the eraser disk during operation, while allowing quick replacement when worn with manual dexterity only.

A rubber-erasable aqueous ink for a writing material composition contains water, a water-soluble polar solvent, and a particulate adhesive colored resin. The particulate adhesive colored resin contains a pigment and an adhesive resin which is adhesive on at least a part of a surface thereof. The particulate adhesive colored resin has a particle diameter distribution such that the amount of particles having a particle diameter of from 2 mum to 20 mum is not less than 70% by weight of all the particles.

Aqueous hard surface cleaner compositions useful for removing permanent ink are disclosed. The compositions comprise 75 to 99 wt. % of water; 0.1 to 5 wt. % of a monoterpene; 0.1 to 5 wt. % of a C10-C17 fatty acid derivative; and 0.1 to 5 wt. % of one or more surfactants. The fatty acid derivative is selected from N,N-dialkyl amides, N,N-dialkyl esteramines, and N,N-dialkyl amidoamines. Preferably, a base such as sodium carbonate or monoethanolamine is also included. The invention includes concentrates comprising the non-aqueous components recited above, as well as other applications for the cleaners and concentrates such as graffiti removers and permanent ink erasers. The combination of a monoterpene and certain fatty acid derivatives, especially fatty N,N-dialkyl amides, unexpectedly enables even dilute aqueous compositions to rapidly decolorize black permanent marker from hard, non-porous surfaces.

The present invention relates to an eraser system, and particularly relates to an independent eraser system for the digitizer coordinate system. The independent eraser system for the digital coordinate system is separated from the digitizer pen, and thus, the independent eraser system and the digitizer pen can be operated independently and simultaneously. The independent eraser system comprises an erasing function circuit and the erasing function circuit comprises a power supplier for providing the electric energy, an oscillating circuit for providing the electric signals and a converter for converting the electric signals into magnetic signals.

The invention discloses an eraser cutting device with small abrasion on the eraser. The eraser cutting device comprises a workbench, wherein a front supporting plate and a rear supporting plate are respectively arranged at the front end and the rear end of the top surface of the workbench; a feeding port is arranged at the bottom end of the front supporting plate; a working top plate is fixedly arranged at the top end of the front supporting plate and the top end of the rear supporting plate; a pushing device and a cutting device are arranged on the working top plate; a lifting feeding mechanism is arranged on one side of the rear supporting plate; the lifting feeding mechanism comprises a feeding cylinder; the center of the lower end of the rear supporting plate is screwed with a limitingbolt; and the bottom end of the limiting bolt is fixed with a limiting backing plate. The eraser cutting device has the advantages that the eraser is conveyed through a roller shaft, a turntable andthe lifting feeding mechanism, so that the left side surface, the right side surface and the bottom surface of the eraser do not directly rub with the surface of the workbench, the sliding rubbing ischanged into rolling rubbing, the abrasion of the eraser is greatly reduced, and the quality of the eraser is improved.

Provided is a plastic eraser excellent in safety and environmental pollution resistance and, not detracting from the erasability thereof, further excellent in bleeding resistance and eraser dust gatherability. The eraser comprises a base resin such as a vinyl chloride resin and, as incorporated therein as a plasticizer, a liquid acrylic polymer having a glass transition point (Tg) of not higher than 0 DEG C. The eraser may comprise the liquid acrylic polymer alone or as combined with one or more other plasticizers. Containing the liquid acrylic polymer as a plasticizer, the eraser has excellent bleeding resistance and excellent dust gatherability which could hardly be balanced.

An ink is proportionally prepared from solvent oil, the resin or modified rubber or artificial latex or rubber derivative or their mixture, coloring agent, filler and additive through proportional mixing, heating while high-speed stirring, cooling, filter, grinding and filter. It is suitable for ball-point pen or other pens. Its advantages are no damage and pollution, easy erasing, and not decoloring.

A dust-absorbing eraser, the mini-vacuum cleaner is inside the casing, and the automatic eraser is arranged at the front end of the casing; a switch is arranged on the casing, and an air outlet is arranged at the rear; a battery is arranged inside, and a battery cover is arranged on the casing; the mini-vacuum cleaner includes Motor 1, motor 1 is connected with fan blades, the fan blades are connected with the dust collection box, the filter screen is set on the dust collection box, the dust collection box cover is set at the lower part of the dust collection box, the air inlet is set on the dust collection box cover, and the air inlet is set around the air inlet. The brush and the dust box cover can be taken out for cleaning; the automatic eraser includes an eraser, an eraser body, and a second motor; the eraser can be replaced; the first motor, the second motor, and the switch are connected to the battery. The invention is easy to use, can keep the desktop clean and tidy, improves the use efficiency, is simple to operate, and is convenient to clean. It is suitable for a wide range of people, not only elementary school students, but also art students and working people can use it.

The present invention provides an aqueous dry-erasable ink or marking composition, which could be applied to both porous and non-porous surfaces and erasable from both porous and non-porous surfaces or marking substrates. The present invention further provides erasure of mark made by the ink composition from such porous and non-porous substrate, which is achieved by a cloth or the like, without requiring rubbing by conventional erasers. The ink composition comprises water, composite pigment, one or more rheology additive, one or more wetting agent, one or more water-soluble resin, pH adjuster and one or more biocide. The composite pigment is a compound of polymer resin and colored pigment at a weight ratio from 10 / 90 to 97 / 3.

Provided is a plastic eraser excellent in safety and environmental pollution resistance and, not detracting from the erasability thereof, further excellent in bleeding resistance and eraser dust gatherability. The eraser comprises a base resin such as a vinyl chloride resin and, as incorporated therein as a plasticizer, a liquid acrylic polymer having a glass transition point (Tg) of not higher than 0° C. The eraser may comprise the liquid acrylic polymer alone or as combined with one or more other plasticizers. Containing the liquid acrylic polymer as a plasticizer, the eraser has excellent bleeding resistance and excellent dust gatherability which could hardly be balanced.

The invention discloses a brush eraser, belonging to a stationery, comprising an eraser, wherein one end of the eraser is connected with a brush; the brush includes a brush plate, one side of the brush plate is provided with bristles, so The other side of the brush plate is connected with the eraser. The beneficial effects of the present invention are as follows: by adopting a brush eraser provided with a brush and an eraser, the left eraser can be recovered and arranged after the eraser is used in time, and the effects of quick finishing and environmental protection are achieved.

An electronic eraser includes a carrier defining therein an accommodation chamber, two or three signal transmitters mounted on the border inside the accommodation chamber and one or multiple signal transmitters mounted inside the accommodation chamber between two bordered signal transmitters beyond the midpoint therebetween, and a power supply mounted inside the accommodation chamber and electrically coupled with the signal transmitters to provide the signal transmitters with the necessary working electricity. When going to clear the writing or drawers on a touchscreen the user can move the carrier, enabling the touchscreen to receive and process the signals of the signal transmitters and to clear the writing or drawings on the surface thereof according to the signal processing result, and thus, the invention facilitates the operating convenience.

The invention relates to a preparation method of an elastic eraser material and belongs to the technical field of stationery and sporting goods materials. The preparation method includes: adopting a mechanical blending method to use thermoplastic polyurethane elastomer to modify butadiene-styrene rubber, blending butadiene rubber with the modified butadiene-styrene rubber to serve as a raw material, combining with auxiliaries like plasticizer epoxy soybean oil, filler white carbon black, stabilizer and lubricant, and performing hot-press forming to obtain the elastic eraser material. Polyurethane is high in hardness and rich in elasticity and has high mechanical strength, oil resistance, ozone resistance and excellent low-temperature performance; the thermoplastic polyurethane elastomer isused to modify the butadiene-styrene rubber, so that the modified butadiene-styrene rubber has elasticity of the polyurethane elastomer; the butadiene rubber has the advantages of high elasticity, high wear resistance, high cold resistance, low heat yield, high deflection resistance and good dynamic performance; by blending the butadiene rubber with the modified butadiene-styrene rubber, the eraser material prepared by the method has high elasticity, and breakage when in use is avoided.

The heating eraser for removing thermally changeable ink comprises a heating eraser unit that removes or changes a color by instantaneously applying heat at 50 to 65° C. as a color changing temperature range of a phase transition material selectively along a handwriting written or drawn by a writing instrument using the thermally changeable ink containing thermally changeable fine particles of 10 wt % to 70 wt % including a core portion containing the transition material including a phenol-based compound containing an aliphatic functional group having carbon atoms of 6 or more and a shell layer covering the core portion and made of a polymer resin on a substrate.

An erasable ink writing instrument comprising a body extending along an axis, the body having a first end and a second end opposed to the first end along the axis, the first end being provided with a writing tip and with an eraser, wherein the writing tip is fed with erasable ink, wherein the writing tip is fixed with regard to the body and the eraser is movable along the axis with regard to the body, and the erasable ink writing instrument further comprising a helical-cam propelling mechanism configured to move the eraser along the axis between a retracted position and a protruding position. The erasable ink is a peelable ink and the eraser is a friction body.

An eraser with a brush comprises an eraser body, wherein the brush is arranged on the eraser body; and the brush is arranged on one side of the eraser body. According to the eraser with the brush, fragment s can be put into a waste paper basket after swept up by the brush, and the eraser is clean, sanitary, attractive, simple in structure and convenient to use.

The invention discloses an environment-friendly cuttable eraser pencil. The environment-friendly cuttable eraser pencil comprises a pencil, a cylindrical eraser and a paper or a veneer, wherein the pencil comprises a wooden core and a pencil lead arranged on the middle part of the wooden core, the length of the paper or the veneer is the sum of the lengths of the pencil and the cylindrical eraser, the pencil and the cylindrical eraser are tightly wrapped by the paper or the veneer, and length boundary lines of the pencil and the cylindrical eraser are marked on the outside surface of the paper or the veneer. According to the environment-friendly cuttable eraser pencil, the pencil and the cylindrical eraser are tightly wrapped by the paper or the veneer, the eraser is long, and the paper or the veneer is cuttable; when the pencil is excessively cut, and the paper or the veneer which wraps an eraser section is long enough, the paper or the veneer which wraps the eraser section is suitable for handheld use, and users conveniently and continuously use the pencil till the pencil is used up. When the eraser needs to be more used, the paper or veneer wrapping the seaser section can be cut till the eraser is used up. According to the environment-friendly cuttable eraser pencil, both pencil sections and the eraser are used maximally, waste is prevented and the pencil is environment-friendly and convenient to use.

The invention discloses an eraser device and a method for cleaning chippings. The eraser device comprises a shell body (1), a first gear (2) which is installed on the shell body (1) and partially protrudes out of the shell body (1), and at least one second gear (3) which is installed on the shell body (1) and is in transmission with the first gear (2) in a meshed mode, wherein the first gear (2) comprises first gear teeth (22) used for erasing pencil handwriting, tooth sockets of the first gear (2) and tooth sockets of the second gear (3) are used for containing the multiple chippings generated by erasing the pencil handwriting. The eraser device has the advantages that the structure of the first gear and the second gear is adopted, chippings generated when the first gear teeth erase the pencil handwriting can be absorbed in the tooth sockets of the first gear and the tooth sockets of the second gear respectively, and therefore automatic cleaning of the chippings is achieved. The method for cleaning chippings is simple and convenient.

Ink allowing handwriting to be erased with erasers is prepared from, by weight, 2.5-5 parts of sorbitol, 1.2-2 parts of thickener, 0.5-2 parts of dispersant, 0.2-0.5 part of wetting agent, 0.5-1 part of antirust agent, 0.5-1 part of bactericide, 15-32 parts of pigment powder capable of being erased by erasers, 2 parts of diphenylamine and 55-70 parts of purified water in a mixed mode. Writing with the ink on paper is smooth, handwriting can be erased immediately after being formed, and the ink is adaptable to various kinds of paper for writing and can be erased with erasers to keep the test paper surface clean.

The invention discloses an eraser, comprising an eraser (1). The eraser is characterized in that an oblique slot (11), a straight slot (12) and an arc slot (13) are sequentially arranged in the middle of the eraser (1) from top to bottom. The oblique slot (11), the straight slot (12) and the arc slot (13) are mutually communicated. The eraser (1) is made of rubber. The eraser is simple in structure, good in wiping effect, high in efficiency, low in cost and mainly used for wiping golden fingers of parts such as a memory card, a display card, a sound card and a network card in a computer.

The utility model relates to an eraser trademark paper wrapping machine, which is used for wrapping and pasting eraser trademark paper. Including the body, the paper feeding mechanism, the glue coating mechanism, the rubber feeding mechanism, the paper folding mechanism and the finished product output mechanism respectively arranged on the body, as well as the fan, the motor and the transmission device; the suction port of the fan faces the paper feeding mechanism; the motor passes through the transmission The device is respectively connected with the paper feeding mechanism, the gluing mechanism, the rubber feeding mechanism, the paper folding mechanism and the finished product output mechanism; its working path is that the paper feeding mechanism transports the trademark paper to the gluing mechanism for gluing; the rubber and the gluing mechanism The glued label paper is sent to the paper folding mechanism in the opposite direction for wrapping, and then output by the finished product output mechanism. According to the invention, the work of wrapping the eraser with trademark paper is completed automatically by machinery, and the shape of the wrapping is smooth, the bonding is firm, and the appearance is beautiful; the working efficiency of this machine is about 15 times that of manual wrapping, which greatly improves the labor efficiency. It can enable enterprises to reduce labor and reduce costs.

The invention discloses an eraser. The eraser includes a connecting sleeve, an eraser, and a brush. The brush includes a handle and bristles adhered to the end of the handle; One end of the connecting sleeve, the rubber is inserted into the other end of the connecting sleeve. The eraser provided by the present invention realizes that the eraser can be brushed away with a brush after each use of the eraser, thereby ensuring the cleanliness of the workbook.

The invention provides a rubber and brush combined pencil. One side of a tail sleeve at the tail end of a pencil holder is provided with a brush, when the pencil is used, wrongly written or mispronounced characters are erased through rubber and then the brush can be directly used for cleaning rubber residues on paper. The rubber and brush combined pencil has the characteristics of reasonable combination mating and convenience for use.

The invention relates to an eraser for metal descaling, which comprises the following components by weight percent: 16-22 percent of resin, 16-21 percent of plasticiser, 54-58 percent of nicalon, 0.8-1.2 percent of heat stabilizer, 1.3-1.6 percent of vesicant and 4-5 percent of thickening agent. The eraser for metal descaling is prepared by stirring and uniformly injecting the materials into a die according to the proportion, heating in an oven for 15 minutes at 120 DEG C, then drying at 165 DEG C for 20 minutes, naturally cooling, and demoulding from the mold for shaping. The eraser has no friction noise during metal descaling, high working efficiency and low cost, can replace tens of pieces of sand paper, and also can replace a household cleaning ball sold on market to clean stains on the surfaces of various kitchen appliances and electric appliances, and the cleaning effect is superior to the cleaning ball.