35results about "Duplicating using carbon paper" patented technology

The present invention relates to a method for forming a graphene protective film having gas and moisture barrier properties, to a graphene protective film formed by the method, and to the use thereof. A single-layer or multi-layer graphene protective film can be used as a material for a barrier coating or bags, and improves the gas and moisture barrier properties of a variety of devices in a wide array of industrial fields to thereby maintain the electrical characteristics of devices over a long period of time.

A method of transferring graphene is provided. A method of transferring graphene in accordance with an exemplary embodiment of the present invention may include forming a graphene layer by composing graphene and a base layer, depositing a self-assembled monolayer on the graphene layer, and separating a combination layer comprising the self-assembled monolayer and the graphene layer from the base layer.

[Problems] To provide a laser-marking film having a laser-marking ink layer capable of forming vivid images when it is irradiated with a laser beam for forming laser markings. [Means for Solution] A laser-marking film comprising a base film 1, a white underlying layer 3 formed on the base film 1, and an ink layer 5 for laser marking formed on the underlying layer 3, wherein the ink layer 5 contains, dispersed therein, an iron oxide as a laser beam-absorbing agent in an amount of 0.1 to 30 parts by weight per 100 parts by weight of a resin binder.

The invention relates to a stripping paper and its back lining, the two of which may comprise fiber net and yellow and/or red dye. The luminous transmittance of the paper and the back lining for example at the part of about 680nm wavelength is about 40%--80%. Its Gurley density may be about 4000 second-10000 second. The stripping paper and back lining has stronger light permeability than that of existing one.

The invention discloses a preparation method of modified aralkyl substituted salicylic acid resin polyvalent metal salt. Aralkyl substituted salicylic acid obtained by the reaction of salicylic acid or derivatives of the salicylic acid and styrene or derivatives of the styrene by a catalyst reacts with polyvalent metallic compound and activated clay mixture. The reaction temperature is 50-200 DEG C, and the time is 0.5-5 hours. Purification is carried out after the completion of the reaction, and the activated clay modified aralkyl substituted salicylic acid resin polyvalent metal salt is obtained. The preparation method provided by the invention has the advantages of simple process, no waste water and acid generated in the reaction process, high yield and no environmental pollution.

The invention discloses neutral easy-removal ink and an infant footprint anti-counterfeiting stamp pad containing the same. The neutral easy-removal ink contains the following components by weight percent: 10-20 percent of pigment, 10-20 percent of resin, 30-40 percent of humectant, 25-35 percent of emulsifier, 0.1-1 percent of antistatic agent, 0.1-1 percent of antioxidant, 0.1-1 percent of parting agent and 0.5-5 percent of desoxyribonucleic acid anti-counterfeiting identification material. The infant footprint anti-counterfeiting stamp pad comprises a pad surface, a pad seat and a thin film. The surface of the thin film facing to the pad seat is evenly coated with the neutral easy-removal ink. The pad surface, the thin film and the pad seat are bonded together. The invention has the advantages that the stamping performance is good, the drying speed is fast, the paper binding force is strong, the performance is stable, no situations such as skinning, oil seepage, corrosion and oxidization occur if the infant footprint anti-counterfeiting stamp pad is statically placed under a closed environment for more than one year, the preparation technology is simple, the cost is low and three kinds of wastes are not emitted.

The invention belongs to the technical field of functional coordination chemistry, and relates to a novel organic-manganese bromide hybrid luminescent material and a preparation method thereof. The chemical formula of the material is C6H16N2MnBr4. The complex is prepared by dissolving trans-2,5-dimethylpiperazine hydrobromide and manganese bromide tetrahydrate in a mixed solvent of acetonitrile and ethanol through a solvothermal method, placing the solution in a reaction kettle, carrying out constant-temperature heating reaction, and after the reaction is finished, naturally cooling to room temperature to obtain the complex. The complex is dissolved in N,N-dimethylformamide, then filter paper is coated with the solution and constant-temperature heating is performed to obtain luminous carbon paper. Preset information can be printed by adopting a CO2 laser marking machine, the retention time of the printing information can be controlled by adjusting the laser power, the printing information is displayed under ultraviolet irradiation, and the printing information can be erased by placing the paper in a certain humidity environment. The luminous carbon paper has good resolution ratio, contrast ratio and cyclic utilization capability, and has good application value and prospect.

The present invention provides a thermal transfer recording medium having a solvent-resistant layer based on a polyester resin wherein an even ink layer is formed by coating on the solvent-resistant layer. A thermal transfer recording medium 10 of the present invention comprises a solvent-resistant layer 2 based on a polyester resin on a substrate 1 and an ink layer 3 based on a ketone resin on the solvent-resistant layer 2. The solvent-resistant layer 2 contains a polyethylene wax in the range from 10 to 80% by weight of on the basis of the solid content of the solvent-resistant layer.

The invention relates to application of a thermally reversible piezochromic dye in an ink-free printing technology. The molecular structural formula of the prepared anthracene derivative with the thermal reversible piezochromic property is as follows: 9, 10-bis (diethyl phosphinomethyl) anthracene is taken as a raw material, and an intermediate 9, 10-bis (4-formyl styryl) anthracene is obtained through a wittig-horner reaction; the preparation method comprises the following steps: carrying out a wittig-harner reaction on 9, 10-bis (4-formyl styryl) anthracene to obtain DSA1; the preparation method comprises the following steps: carrying out Knoevenagel condensation reaction on 2, 4, 6, 9, 10-bis (4-formyl styryl) anthracene to obtain DSA-CN0-6. The preparation method has the advantages that the preparation method is simple in process, the raw materials are easy to obtain and easy to implement, and the prepared reversible printing carbon paper has the characteristics of high sensitivity, high stability and high contrast ratio, meets the requirements of reusability and readability in daily life scenes and has very high application value.

The invention provides a form book, which comprises a cover and multi-piece carbon paper, wherein the middle part of the cover is provided with a folio cover folding mark; the cover folding mark divides the cover into two symmetrical parts and can be buckled along the cover folding mark; the multi-piece carbon paper at least comprises upper paper, middle paper and lower paper in sequentially overlapped arrangement; one group of edges of the upper paper, the middle paper and the lower paper is bonded into a whole through a bonding agent; the bonding agent is prepared from paper making latex, polyvinyl alcohol glue, a permeating agent and a dispersing agent; the back side of the lower paper is attached into the cover; when the cover is buckled, the multi-piece carbon paper is folded and accommodated in the cover. The invention also provides a manufacturing method of the form book. The form book is provided with the cover capable of being buckled; the cover can protect the multi-piece carbon paper arranged at the inner side of the cover; one group of edges of the upper paper, the middle paper and the lower paper of the multi-piece carbon paper are bonded into the whole, so that the printing alignment is enabled to be more accurate; after the printing and signature are completed, the upper paper, the middle paper and the lower paper can be easily separated through hand tearing.

The invention belongs to the technical field of copy paper, and particularly relates to carbonless copy paper. The carbonless copy paper comprises a paper body and a U-shaped paper tearing clamp; a pressing plate is connected to the inner side wall of the top end of the U-shaped paper tearing clamp through a spring, and a notch is formed in the U-shaped paper tearing clamp; the paper body is longitudinally arranged in the U-shaped paper tearing clamp and pressed on the inner side wall of the bottom end of the U-shaped paper tearing clamp through the pressing plate, and a tearing rope is arranged at the position, perpendicular to the notch, of the bottom side of the paper body; and first elastic pieces one are symmetrically arranged at the positions, close to the tearing rope, of the notch,so that the tearing rope can slide in the notch after passing through the first elastic pieces one when being pulled up. Through the match among the tearing rope, the U-shaped paper tearing clamp andthe paper body, the paper body is orderly torn, so that the torn side wall of the paper body is in a linear shape, the torn paper body is in a rectangle shape, the effective range of the paper body is greatly utilized, the using range and the using effect of the paper body are improved, and a large amount of manpower and material resources are saved.

The embodiment of the invention discloses a tool rubbing pen and a using method. The tool rubbing pen comprises a nylon sleeve, a copy paper roll, a cushion block and an adjusting screw. The copy paper roll is connected with the cushion block. The cushion block is connected with the adjusting screw. The nylon sleeve is detachably connected with the copy paper roll and the cushion block. The nylonsleeve is in threaded connection with the adjusting screw. And the adjusting screw is used for adjusting the length of the copy paper roll by means of length adjustment. In this way, the situation that manual estimation of the using amount of carbon paper is inaccurate is avoided, and resource waste of copy paper rolls is reduced.

Disclosed is a carbon paper manufacturing method. The method includes the following steps that 2-12 g of chlorinated polyethylene, 2-8 g of ethylene, 7-13 g of metasilicic acid, 2-10 g of barium sulfate, 3-7 g of aniline, 4-13 g of bentonite, 12-16 g of sodium phosphate, 3-9 g of beewax and 2-5 g of calcium chloride are mixed uniformly and put in a high pressure reactor, the pressure is 100-137 mpa, and the reaction time lasts one to nine hours; a product obtained in the former step is taken out, cooled and ground until the particle size reaches 100-200 micrometers; the product is irradiated for one to two days under an ultraviolet lamp; 2-4 g of indigo blue is added for mixing, and then lead chloride and ethyl alcohol are added and fully dissolved to obtain a substance; and the obtained substance is uniformly smeared on non-woven fabrics to be dried in the shade so as to obtain carbon paper. According to the method, burdening is simple, the obtained carbon paper is not prone to fading, and colors are not prone to contaminating hands during usage.

The invention belongs to medical unit articles, and relates to a clinic medical record. The medical record mainly comprises a cover of the medical record, an upper counterfoil of the medical record, a lower counterfoil of the medical record and a back cover of the medical record, wherein the upper counterfoil of the medical record is provided with prescription for treatment medicaments or other treatment methods prescribed by a treating doctor, while a position on the lower counterfoil of the medical record corresponding to the prescription of the upper counterfoil of the medical record is provided with a reserved prescription for the treatment medicaments or other treatment methods prescribed by the treating doctor; the prescription of the medical record and the medical record are of a separable structure serving as a credence for patients to pick up medicaments in a dispensary, while the lower counterfoil of the medical record is used as a part of the medical record for later checking. The clinic medical record can save time for doctors, reduce work load of the doctors, and improve working efficiency due to the duplicating function of the prescription; and the prescription and the reserved prescription for the patients are arranged correspondingly, and cannot be changed, so the medical record can offer help to medical tangles, and provides reference for doctors in next treatment.