47results about How to "Clear writing" patented technology

The invention relates to a solid color writing pen, which consists of an acid-base indicator, an alkaline compound, a humectant, a surfactant, a lubricant, an adhesive, a substrate, ethanol and water. The preparation method comprises the following steps: a mixture is subjected to mixing, heating, dissolving, evenly stirring, film injection and molding to form the solid color writing pen. The solid color writing pen can replace chalks and whiteboard pens and is mainly used for teaching board writing, office noting and the like. The color writing pen has the characteristics that the pen has good stability, smooth writing, does not contaminate cloths and articles, has no pollution of dust and is environment-friendly; the writing can be wiped and fade by a wet cloth instantly; the pen also has long service life; the ruling length of a 1gram of pen body can reach 446.5 meters; compared with the chalk with the same quality, the writing amount of one color writing pen corresponds to the writing amount of seven common chalks; in addition, the pen also has the characteristics that the pen protects the environment and has bright and clear writing color, and even if under the environment with 70 percent relative humidity, the writing can be also remained and does not fade for a long time.

To provide an L-shaped stand for hexagon socket screw keys that has a simple and compact structure, and that facilitates storage and withdrawal of the hexagon socket screw keys. An L-shaped stand for hexagon socket screw keys 11 includes: a hexagon socket screw key base 1 having a flat face for placing thereon lower ends of hexagon socket screw keys; a support portion 2 that is above the hexagon socket screw key base and that includes through-holes 2a provided in a line in order of sizes of the diameters of hexagon socket screw keys; and a guide 3 for aligning the orientation of hexagon socket screw keys. Preferably, a series of inclined portions are provided in the guide, and the stand is inclined by an auxiliary base 5.

The invention provides a preparation method for black marking glaze for a borosilicate glass insulator. The preparation method comprises the following steps of: adjusting a proper burdening point by taking various chemical pure oxides as basic raw materials, sintering at the high temperature, and water-quenching to obtain basic glass; smashing and grinding, and mixing the smashed basic glass and an organic solvent to obtain the black marking glaze; and finally printing the prepared marking glaze through a silk screen. The preparation method for the black marking glaze for the borosilicate glass insulator has the advantages that: 1, in the preparation method, the marking glaze is prepared by mixing the organic solvent and an inorganic glass material; the marking glaze prepared by the method is encapsulated by an atmosphere furnace at the high temperature and subjected to post chemical polishing, so letters or numbers marked by the marking glaze are hard to fall off and clear, and short lines and decoloration phenomena are avoided; and the appearance quality of a sealed socket meets the requirements; 2, the marking glaze which is prepared by the method and subjected to the whole test of the sealed socket has no influence on the electric insulation performance; and 3, the marking glaze prepared by the method is directly printed on a glass blank cake, and the glaze is deep black in color, strong in stereoscopic sensation, clear to see words, convenient to operate and simple in process.

A bus stop nameplate with touch-screen guide system is composed of original posts, canopy and chair as basis, and additional touch screen, and LCD screen for advertisement, news, etc.. The touch screen can be used for inquiring traffic information above air lines, navigation lines, bus routes, bus stops, etc..

The invention provides a colored pencil lead and a preparation method thereof. The colored pencil lead comprises components in parts by mass as follows: 62-73 parts of sodium thiosulfate, 13-20 parts of a color developing agent, 7-15 parts of CMC (carboxy methylated cellulose) and 0-8 parts of kaolin, wherein the color developing agent consists of sodium carbonate and an acid-base indicator. The preparation method of the colored pencil lead includes steps of weighing the raw materials in proportion, mixing sodium carbonate and the acid-base indicator, adding absolute ethyl alcohol dropwise and mixing to a heavy paste, then pouring molten sodium thiosulfate in and stirring evenly, adding CMC and kaolin, stirring evenly, pouring into a die, drying, and taking out. The provided colored pencil lead can fade both when the lead meets water and when the lead is placed in the air for a long time, is easy to wash when adhering to hands or clothes, is non-residual, non-toxic and harmless, and is suitable for occasions where long-stem storage is not needed, such as temporary marking, calligraphy and painting exercise, and the like.

The invention provides an environment-friendly degradable child colored oiled crayon. The colored oiled crayon comprises the following components the content of which is in mass fraction: 0.3-12% of chromogenic reagent, 6-15% of color-developing agent, 35-53% of emulsifying wax, 15-20% of polyethylene glycol, 12-25% of stearic acid, and 2-15% of talcum powder. The child colored oiled crayon disclosed by the invention overcomes the shortcoming that the existing child crayon is difficult to erase, and has the advantages that after writing, color can be removed by wiping with water, and no trace is left. The colored oiled crayon is dust-pollution-free, environment-friendly, non-toxic and innocuous, and can be not only used as a child crayon, but also used to write on a whiteboard for teaching. The production process is simple and mass production of the crayon is easy to realize.

The present invention relates to the movement structure, calendar display, clock face installation and rotating shaft structure. The movement structure consists of four parts including pulse stepped motor, pointer transmission wheel system, pointer setting mechanism and hour and day reporting trigger signal output mechanism. The minute wheel in backward design is set outside the back clevice assembly for saving space. The calendar display is a micro power consumption and large width one and the clock face is float installed with springs for lasting flatness. The rotating shaft structure is of self-lubricating corrosive and wear resistant material. The large clock of the present invention is not affected by power failure, whether and environment, and is corrosive, wear resistance, accurate, reliable and durable.

The invention relates to a lettering method for a cable polyurethane elastic body jacket. The specific steps are as follows: (1) after a cable is extruded out of a jacket, the cable is air-dried; (2) the cable is put into an oven for preheating; (3) a lettering wheel is chosen and arranged on a lettering machine; (4) cyclohexanone solution and printing ink are mixed for spare use by the weight ratio of 1 to 20; (5) an angle formed by an ink-scratching piece and the lettering wheel is adjusted to 45 degrees, which is the best; (6) a front guide wheel and a rear guide wheel of the lettering machine are on the same straight line with a lettering pinch wheel; (7) after the pressure of the lettering pinch wheel is adjusted, lettering can be started; and (8) ink is added. The lettering method for a cable polyurethane elastic body jacket has the benefits that characters printed on the surface of the cable polyurethane elastic body jacket are bright-colored and clear, and problems such as double images can be avoided; and the characters cannot be easily erased out, so that the characters last for a long time.

The invention belongs to the technical field of writing equipment, in particular to an auxiliary writing method convenient to control. The auxiliary writing method comprises the steps of locating a writing head, and adjusting the writing position; when the writing head is located, firstly, locating the writing head with a first character lattice on the first line, and then, rotating test paper tolocate a tail character lattice on the first line with the writing head, so that locating of all character lattices is completed; and when the writing position is adjusted, conducting stepping movement of character lattice distances in the horizontal direction, and conducting stepping movement of line distances in the vertical direction, so that automatic locating of the writing position is achieved in the writing process. By means of the auxiliary writing method, auxiliary Chinese writing can be achieved in the test process conveniently.

The invention relates to a blackboard face, which is characterized in that the blackboard face comprises basic substance and findings and the proportion by weight is 1:0.1-3, wherein the basic substance is polychloroethylene or polyproethene, the findings are at least one of carborundum, iron powder and french chalk. The invention also comprises pigment, so that blackboard face is made into different colors according to the need. The another purpose of the invention is to provide a process for making the blackboard face, and the process includes the following operating steps: basic substance and findings are charged in commingler sequentially at room temperature, mixed equally, heated to 60 DEGC to 80 DEGC, and then raw material heated is compressed into blackboard face through rolling pipe body filled with flowing water of 0 DEG C to 4 DEG C. The invention has the advantages of easy writing, no reflecting, no slipping, overcoming the defect of no easy breaking, low weight, light and beauty, which is provided with steel boards, overcoming the defect of no easy abrasion, simple technique of producing blackboard face, and proper popularization and application.

The invention belongs to the technical field of handwriting assistance, in particular to a writing pen moving method capable of reducing scratches. The method comprises the steps of pressing signal acquisition, pressing stroke reduction, horizontal displacement absorption and pen placement.By reducing the stroke of a pressing signal, the floating amplitude of a pen point caused by floating of a pressure plate is reduced, scratches are avoided, horizontal displacement generated in the pressing process is absorbed, and the situation that the horizontal displacement affects the moving track of the pen point on the surface of the test paper is avoided.

The invention discloses a dust-free blackboard capable of realizing automatic wiping. The dust-free blackboard comprises a frame in which two scrolls are vertically arranged at intervals, a closed loop white board is wound on the two scrolls, and the scrolls are driven to rotate by a set of drive devices, thereby driving the white board to rotate; two blackboard erasers are arranged on the frame of one side outside the closed loop white board, and a pushing mechanism is arranged in the closed loop of the white board and comprises two support plates by which the white board can be pressed on the two blackboard erasers; chutes are formed in opposite sides of the two support plates, sliding blocks are arranged in the two chutes and articulated with the respective connecting rods, the two connecting rods are fixed on one pushing plate, a groove I is formed in the lower end of the pushing plate, a bearing is arranged in the groove I, and the inner hole of the bearing sleeves the end of one screw. The dust-free blackboard can be written by fountain pens and can prevent dust pollution, the writing area is doubled, and the dust-free blackboard can be used as a projection screen.