56 results about "Gum printing" patented technology

A dispersing agent characterized in that said dispersing agent is prepared by reacting primary and/or secondary amino groups of an amine compound comprising a polyamine (C) with isocyanate groups of a urethane prepolymer (E) having two isocyanate groups in one terminal region, wherein said urethane prepolymer (E) has been prepared by reacting hydroxyl groups in a vinyl polymer (A) having two hydroxyl groups in one terminal region with isocyanate groups in diisocyanates (B), and in that an amine number of said dispersing agent is 1 to 100 mgKOH/g is disclosed. The dispersing agent of the present invention has excellent dispersibility, flowability, and storage stability when used in small quantities. A pigment-dispersed product can be prepared therefrom, independently of the kinds of binder resin or solvent used. Further, the present invention is suitable for offset ink, gravure ink, resist ink for a color filter, inkjet ink, coating composition, and colored resin composition.

The invention discloses a preparation method of modified nanometer calcium carbonate for an ink. The preparation method comprises the following steps: (1) adding a crystal form control agent into suspension liquid of calcium hydroxide, introducing carbon dioxide to perform carbonizing reaction, adding a crystal additive when a carbonizing rate reaches 30% or above, so as to obtain slurry containing the nanometer calcium carbonate after the carbonizing reaction is ended; (2) adding modifying liquid into the slurry containing the nanometer calcium carbonate in step (1) at the temperature of 60 to 95 DEG C, stirring and mixing for 0.5 to 2h, so as to obtain the slurry containing the modified nanometer calcium carbonate, wherein the adding amount of a dry base of the modifying liquid is equalto 2 to 6% of the mass of the nanometer calcium carbonate; (3) filtering the obtained slurry containing the modified nanometer calcium carbonate in step (2), washing, drying, and crushing, so as to obtain the modified nanometer calcium carbonate for the ink. The preparation method has the advantages that the preparation technology is simple; the obtained nanometer calcium carbonate has small sizeand good application property; the modified nanometer calcium carbonate can be applied into medium and high-grade offset ink and gravure solvent ink, and good economic benefit and social benefit are realized.

The invention discloses a 3D printing shoe device and a using method thereof. The device comprises a shoe sole printing device, a vamp printing device, a hot-pressing dotting device and a 3D printinggluing device, wherein the hot-pressing dotting device is used for dotting a shoe sole, and a vamp is hot-pressed on the shoe sole according to the dotted positions; the 3D printing gluing device is used for printing a sealing glue strip connected to a connecting position between the shoe sole and the vamp so as to realize sealing; and printing materials in the shoe sole printing device and printing materials in the vamp printing device are the same or different. The shoe sole printing device and the vamp printing device are arranged for printing the shoe sole and the vamp respectively, so that a shoe which is formed finally can be provided with the vamp and the shoe sole made of the materials different from the materials of the vamp, and the diversity of the shoes is increased; in addition, the 3D printing gluing device is arranged so that even though the materials of the shoe sole and the vamp are different, the excellent sealing performance can also be obtained; and due to the factthat the glue strip is generated through printing, the appearance of the shoe can be customized according to customer requirements, and the overall attractiveness of the shoe is further improved.

The invention discloses a red gum detection method and an implementation device, and belongs to the field of detection of red gum printing and the like. The method is characterized in that a black and white camera is used for taking pictures for red gum measuring objects under irradiation of a RGB three-color light source, and the pictures are stored in a computer; image processing software in the computer is used for carrying out synthetic processing on three black and white pictures to obtain reduced color pictures. All pixel points meeting conditions are researched according to red gum RGB brightness value matching sections pre-stored in the computer, and a set of all pixel points forms the picture of red gum. The method has the advantages of being high in synthetic speed, and high in detection accuracy.

The invention relates to a bottom forming machine of a square bottom paper bag, and the bottom forming machine comprises a bag mouth turnover and line pressing part, a bag bottom turnover and line pressing part, a bottom pulling formation part, a bag bottom forming part, a bottom sealing part and a large roller; the large roller drives the parts to synchronously work according to a preset working procedure; a first line pressing cutter is arranged on the bag mouth turnover and line pressing part; a second line pressing cutter and a third line pressing cutter are arranged on the bag bottom turnover and line pressing part; the bottom pulling formation part comprises a suction nozzle and a mouth pulling roller of a first tooth-type pressure block; the bag bottom forming part comprises an arc-shaped formation guide rod, a formation baffle, a bag bottom pressure roller, a gum-printing roller, a bag bottom line pressing cutter, a folding cutter and a bottom sealing support rod; the bottom sealing part comprises a variable speed bottom sealing rod, a bottom sealing circular arc-shaped plate and a connecting roller with a connecting holding tooth claw; and the large roller is provided with a large finger-type pressure block, a small finger-type pressure block, a second tooth-type pressure block, a paper suction jaw, a paper clamping jaw and a paper holding tooth claw, and is driven to work by an internal driving mechanism. According to the bottom forming machine of the square bottom paper bag, the full-automatic continuous work of the bottom formation of the square bottom paper bag can be realized.

The invention relates to a waterborne polyurethane thickener and an application in alcohol-free fountain solution and belongs to the waterborne polyurethane thickener. The waterborne polyurethane thickener is prepared by the following steps: firstly enabling waterborne polyester polyol and isocyanate to react to produce prepolymers, wherein the reaction of the waterborne polyester polyol is full due to far-excessive isocyanate in a prepolymer system at the moment; then carrying out chain expansion by utilizing a small-molecular chain expanding agent, calculating the feeding amount of the chain expanding agent before feeding, adding an end capping agent to carry out end capping when the amount of the isocyanate (NCO%) is reduced to a specified index so as to cause the oleophylic and hydrophilic ratio on the molecular chain to meet the requirements of a dispersing agent. The waterborne polyurethane thickener and the application have the advantages that three separated kettles are adopted for continuous production, so that the side reaction in the reaction process is reduced and the quality of the waterborne polyester polyol is guaranteed; the water-film thickness of the fountain solution is increased; the fountain solution is good in water-retaining property and is not easy to get mildew; and no alcohol or isopropanol is used in the fountain solution, so that the pollution is reduced, the safety is guaranteed, and simultaneously the requirements of offset print for the property of the fountain solution are met.

The invention discloses a manufacturing method for a PCB for a charging pile. The manufacturing method comprises the following steps: S1, earlier-stage processing is carried out; S2, copper depositionis carried out; S3, blue glue pasting is carried out: a gold-plated area and a non-gold-plated area are preset on the PCB, a to-be-gold-plated bonding pad to be gold-plated is arranged on the presetgold-plated area, blue glue is pasted on the non-gold-plated area, and a copper layer is exposed in the gold-plated area; S4, first micro-etching and blue glue tearing off are carried out: the copperlayer in the gold-plated area is subjected to micro-etching, and the blue glue in the non-gold-plated area is torn off: S5, ink printing is carried out: the preset gold-plated area is covered by the ink and is then baked, and after exposure and development, the bonding pad to be gold-plated is exposed; S6, a dried film is selected and gold plating is carried out: the two sides of the PCB are covered with the dried film, the bonding pad to be gold-plated is exposed and developed, and gold plating is carried out after nickel plating is carried out on the bonding pad to be gold-plated; S7, film stripping and ink stripping are carried out; S8, second micro-etching is carried out; and S9, post-processing is carried out. According to the method, the conditions of gold infiltration and circuit infiltration and corrosion are avoided, the product quality is ensured, the production efficiency is improved, and the prepared PCB can bear large current.

The invention relates to a novel chemically amplified i-line positive photoresist composition which mainly comprises (A) a diphenol divinyl ether acetal polymer obtained by reaction of a diphenol compound with various divinyl ether compounds, wherein the acetal polymer is easily subjected to acid-induced decomposition reaction; (B) a 2,1,4-diazo naphthoquinone sulfonate photosensitizer obtained by esterifying 2,1,4-diazo naphthoquinone sulfonyl chloride and a phenolic compound, wherein the photosensitizer can generate a small amount of sulfonic acid under illumination and cause acidolysis of the acetal polymer and also can serve as a photo-acid generator; and (C) a phenolic resin. The chemically amplified i-line positive light-sensitive imaging material has the advantages of high sensitivity, high resolution ratio, high transparency and the like and can be used for near ultraviolet photoresists and offset print ultraviolet light-sensitive computer-to-plate (CTP) imaging materials for semiconductor processing.

The invention provides a printing device and a frame encapsulating frit printing device, and belongs to the technical field of display panel preparation. The printing device can solve the problem thatan existing screen printing mask is easy to lose and short in life. The printing device is used for printing a frame encapsulating frit on a display substrate; the printing device comprises an accommodating chamber and an air pressure chamber, wherein the accommodating chamber comprises a main body part and a mask, the main body part is used for accommodating a frame encapsulating frit material;the mask is arranged on the side, close to the display substrate, of the main body part, and the mask is provided with a patterned opening area; and the air pressure chamber communicates with the accommodating chamber and is used for adjusting air pressure of the accommodating chamber so as to enable the frame encapsulating frit material in the accommodating chamber to be overflown through the opening area of the mask under the action of the air pressure.

The invention provides UV waterless offset print light disk black printing ink and a preparation method thereof. The UV waterless offset print light disk black printing ink is mainly prepared from the following raw materials in parts by weight: 12 to 18 parts of black pigment, 1 to 2 parts of phthalocyanine blue pigment, 35 to 55 parts of prepolymer, 8 to 18 parts of monomer, 6 to 10 parts of photoinitiator, 5 to 16 parts of filler, 1.5 to 2.5 parts of flatting agent, 1 to 2 parts of wetting agent, 0.01 to 0.1 part of surfactant and 1 to 3 parts of adhesion promoter. The UV waterless offset print light disk black printing ink is prepared by adopting the black pigment, the pigment blue, the prepolymer, monomer, the photoinitiator, the filler and assistants of special kinds, has the advantages such as good anti-scumming property, and excellent rheological property and printing ink transfer property, can be used for light disk surface printing, a fountain solution is not needed to be used in a printing process, the production efficiency is high, the printing quality is good and the production cost is relatively low.

The invention relates to Frit glue printing equipment and method. A worktable is used for placing glass to be printed with glue, a glue printing mechanism is arranged above the worktable, and a sealing ring is used for sealing the upper surface of the worktable and the lower portion of the glue printing mechanism; a body of the glue printing mechanism is of a structure defined by side plates and provided with upper and lower openings, a screen is connected to the opening in the lower end of the body of the glue printing mechanism, and a movable plate is matched with the interior of the body ofthe glue printing mechanism and is movably connected to the inner wall of the body of the glue printing mechanism; a compression cavity is a space defined by the inner wall of the body of the glue printing mechanism, the upper surface of the screen and the lower surface of the movable plate; an air inlet is formed in the body of the glue printing mechanism, the air inlet is used for guiding compressed air into the compression cavity, and a glue scraping assembly is arranged in the compression cavity and is used for scattering Frit glue into screen holes of the screen. The Frit glue printing equipment is used for glue printing, so that the heights of the Frit glue at all positions are coincident, and the product stability is improved further.

A photothermally sensitive composition which is primarily energy sensitive in the near infrared and ultraviolet region of the electromagnetic spectrum is composed of a novolak polymer, a melamine derivative crosslinking compound, an acid-generating compound, a polymeric dissolution inhibitor selected from cellulose acetate butyrate, cellulose acetate propionate and mixtures thereof and an infrared absorbing dye. When applied to the proper support and processed, the composition is useful as an offset lithographic printing plate, color proofing film or image resist.

The invention relates to a method for improving ink precision through two times of printing, and belongs to the technical field of printed circuit boards. The method comprises the following steps that an ink printing screen and a dam glue printing screen are manufactured according to an ink printing area and a non-ink printing area of a printed circuit board; the dam glue printing screen and the dam glue printing screen are adopted for conducting first-time printing on a product, and the non-ink printing area is fully coated with dam glue; the ink printing screen and the ink printing screen are adopted for conducting second-time printing on the product, and the ink printing area is fully coated with ink; and the ink is baked, and the ink is thoroughly cured; and the dam glue is removed. The method has the beneficial effects that two times of printing are adopted, after first-time printing, due to the poor fluidity of the dam glue, the specified non-ink area can be covered, after second-time ink printing is finished, due to the fact that the edge of the ink is blocked by the dam glue, the ink is covered in the specified ink printing area, and the ink overflow problem of a conventional ink printing technology cannot be caused; and the ink printing precision is improved.

The invention discloses a burnt-out printing method for twill fabric. The method comprises the following steps: firstly, spandex fabric is prepared from spandex yarn with a twill process, then white polyester/spandex core-spun cloth is prepared from the spandex fabric and polyester yarn in a blending ratio of 50/50, the obtained white polyester/spandex core-spun cloth is treated with processes asfollows: cloth turning, end stitching, singeing, scouring, bleaching, mercerizing, polyester whitening, hot-melt coloring and setting, and a finished white cloth product to be burnt out is obtained; burnt-out pulp is added to water, a penetrating agent is added, then, plant seed gum printing paste is added, a burnt-out agent is prepared and applied to a printing machine, the finished white cloth product to be burnt out is subjected to roller printing treatment and then is baked, washed and dried and subjected to soft finish, finally, the fabric is subjected to setting, and a finished product is obtained. According to the method, the twill fabric is subjected to burnt-out processing, so that the attractive effect of the twill fabric is greatly improved, the twill fabric has better moistureabsorption property and breathability after being subjected to the burnt-out processing, and the stereoscopic effect and the texture are obviously enhanced.

The invention discloses a cam gluing control mechanism applied to a paper bag machine, which comprises a frame, a gluing mechanism mounted at one end of the frame, and a printing mechanism and a markcutting mechanism mounted at the other end of the frame; by the synchronous transmission among the gluing mechanism, the printing mechanism and the mark cutting mechanism, the gluing, printing and mark cutting process of paper bags are synchronized at corresponding stations, thereby effectively preventing production errors of the paper bags due to transmission on a production line, and ensuring the accuracy of paper bag production; and at the same time, through the synchronous transmission of the mechanisms, no complex control system is needed to perform synchronous control on the three processes when surface gluing, printing and mark cutting processes are performed on the paper bags, as a result, the control structure is simplified, the manufacturing cost of the paper bag machine is reduced, and the production of the paper bags is stabilized.

The invention relates to a high-temperature-resistant thin-wall glass cloth honeycomb core strip adhesive as well as preparation and an application thereof, and belongs to the technical field of honeycomb preparation. According to the invention, the rheological characteristics of the core strip adhesive are controlled by utilizing the characteristics that thermoplastic resin particles are insoluble at normal temperature and soluble at high temperature in the active modifier. The thermoplastic resin is insoluble at normal temperature, so that the addition amount of the thermoplastic resin can be remarkably increased, the wiredrawing phenomenon caused after the thermoplastic resin is dissolved is avoided, and the printing quality of the core strip adhesive is improved. The thermoplastic resin is dissolved in the heating curing process, the viscosity of the core strip adhesive is greatly improved, the phenomenon that the core strip adhesive permeates towards the back of a glass cloth basematerial under the action of curing pressure is avoided, the toughness of the high-temperature-resistant core strip adhesive can be remarkably improved, and the strength of honeycomb nodes is improved.

A method for producing a printable ink for an electronic component in which a transition metal-containing pseudohalide or chalcogenide is first complexed by a pyridine-like or thiol-like solvent, in order to improve or achieve solubility. Subsequently, by filtering and mixing with at least one solvent a printable ink is produced. The printable ink can be used to produce hole transport or electron blocking layers of electronic components.