12results about How to "High blackness" patented technology

The invention relates to the technical field of display devices, in particular to ink for an LED mask, a preparation method of the ink and a preparation method of the LED mask. The ink for the LED mask comprises the following components in percentage by mass: 35%-50% of matrix resin, 25%-40% of a diluent, 15%-25% of a coloring agent, 2%-4% of an accelerant, 2%-4% of an anti-settling agent, 0.1%-1.2% of a weather-proof agent, 0.5%-1% of a dispersing agent, 0.4%-0.6% of a defoaming agent and 0.4%-0.6% of a flatting agent, wherein the coloring agent comprises pigment carbon black of which the blackness is less than or equal to 20; the weather-resistant agent comprises an ultraviolet absorbent and a free radical trapping agent in a mass ratio of (1-3): (1-3). According to the ink for the LED mask, the contrast ratio of the LED mask is improved, meanwhile, the ink color consistency and weather resistance of the LED mask are effectively improved, and therefore the color developing effect of an LED display screen is optimized, and the service life of the LED display screen is prolonged.

The invention relates to an ink-jet printing ink formula and a preparation method thereof, and belongs to the technical field of ink preparation. The carbon black color paste specifically comprises the following raw materials in parts by mass: 3 to 7 parts of carboxylated carbon black, 2 to 4 parts of modified protein, 1 to 3 parts of a dispersant, 0.1 to 0.3 part of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, 0.1 to 0.12 part of N-hydroxysuccinimide, 1 to 5 parts of a 2-morpholinoethanesulfonic acid buffer solution, 0.1 to 0.3 part of an auxiliary agent and 10 to 50 parts of a composite solvent. The polyethylene glycol modified ethanol clostridium protein is used in the components, and carboxylated carbon black and the dispersing agent are combined, so that the compatibility among the components in the system is improved, and good thermal stability and system stability are achieved while the particle size of the black ink is refined.

This invention relates to the field of continuous internal mixing and extrusion equipment technology, and discloses a three-rotor continuous internal mixing and extrusion equipment, including a mixer housing, rotors one, two, and three arranged side by side in the mixer housing, a feed port on the mixer housing, and a drive mechanism. Through axial partitioning of "conveyance, pre-dispersion, high-pressure crushing, and homogenization," the conveying function and the ultra-fine dispersion function are decoupled in physical space. The second mixing zone can focus on establishing an extreme shear environment sufficient to break up stubborn carbon black agglomerates, while the first mixing zone and the mixing output zone ensure a high-throughput, stable supply and output of materials. This solves the inherent contradiction in traditional twin-rotor / twin-screw masterbatch production where "increasing blackness requires sacrificing output," enabling continuous and stable production of uniformly dispersed, high-blackness, and crystal-point-free masterbatch with high capacity. The optimized rotor configuration reduces unnecessary shear heat generation and pressure backflow losses, allowing energy to be more concentrated on the effective pigment dispersion process.

The invention discloses a black doped diamond-like carbon coating structure and a preparation method thereof. According to the black doped diamond-like carbon coating structure, a magnetron sputtering method is adopted for coating deposition, coating equipment is simple in structure and low in cost, the temperature of the magnetron sputtering process is low, and base materials of any shape can be treated; the coating is of a two-layer structure of a black doped diamond-like carbon coating structure, the binding force between the coatings is high, and the coatings are not prone to falling off; a special technology is adopted in the coating deposition process, the blackness and glossiness of the surface of the coating can be effectively improved, the coating is more attractive on the premise that the strength of the coating is guaranteed, and a product has a better decoration effect.

The application belongs to the technical field of polyphenylene sulfide materials, and discloses a high-light black bright polyphenylene sulfide material and a preparation method and application thereof.Raw materials of the application are as follows: 40-77 parts of polyphenylene sulfide resin, 20-50 parts of glass fiber, 2-10 parts of black sand, 1-5 parts of a compatilizer, 0.1-0.3 parts of a dispersing agent, 0.1-0.5 parts of a lubricant, and 0.1-0.3 parts of a coupling agent.The polyphenylene sulfide material is made darker by adding the black sand, and is made brighter by adding the black sand, the lubricant and the dispersing agent, and the black sand simultaneously increases the blackness and the brightness, thereby improving the surface gloss of the polyphenylene sulfide material, and simultaneously making the polyphenylene sulfide material have high toughness and high rigidity.

The extra-black color paste for coloring the gum fiber stock solution comprises the following raw materials in parts by weight: 35-40 parts of modified carbon black, 10-15 parts of a dispersing agent, 2-4 parts of a pH regulator and 30-35 parts of water. According to the invention, the surface polarity of the carbon black can be improved, agglomeration can be reduced, ball milling coating is carried out through an additive solution (containing a basalt fiber modifier, boron nitride, chitosan and yttrium nitrate), the dispersion uniformity of carbon black particles is further improved, the light absorption capability can be enhanced through the uniform dispersion of the carbon black particles, the blackness of the color paste is greatly improved, and the coloring requirement of special black is met.

The invention relates to the technical field of ink preparation, in particular to a high-blackness ink formula for LED display packaging and an organic silicon modified resin gradient dispersion process. The high-blackness ink formula is prepared from, by mass, 8-20 parts of high-blackness composite pigment, 30-50 parts of organic silicon modified resin, 2-8 parts of polymeric dispersant, 1-5 parts of functional additive and 15-35 parts of high-purity solvent. The organic silicon modified resin provides excellent high and low temperature resistance and yellowing resistance, the unique molecular structure of the organic silicon modified resin is more beneficial to wetting and coating of pigment particles, the three-stage gradient dispersion process is matched with online monitoring, and through stepped increase of the rotating speed and the temperature and ultrasonic assistance, the high-temperature-resistant and anti-yellowing performance of the pigment is improved. Progressive dispersion of the pigment from preliminary wetting to deep coating is realized, and nanoscale uniform distribution and long-term stability of the pigment in resin are ensured. The finally prepared ink has the comprehensive advantages of high blackness, low light transmittance, strong adhesive force, wide process window and the like, and perfectly meets the packaging requirements of high-end LED display.

The invention provides application of an infrared filtering blue-red light transmitting optical material in the fields of ink printing, counterfeiting prevention, coating, optics, camouflage and meteorology, and relates to application in the technical field of optical materials. The mass ratio of the solvent blue 97 in the infrared filtering blue-red light transmitting optical material is 0.5-35%; the solvent blue 97 is 1, 4-bis [(2, 6-diethyl-4-methylphenyl) amino]-9, 10-anthracenedione, and the molecular formula of the solvent blue 97 is C36H38N2O2. The novel optical material with infrared light filtering and red light transmitting functions is applied to the field, detection, marking, photographing and information processing serve as the purposes, the properties of the raw materials cannot be affected, the optical effect after light filtering cannot be changed due to the fact that the novel optical material is compounded with multiple pigments, the concealment is good, and therefore the pattern anti-fake effect is achieved. The prominent highlight provides guarantee for the accuracy of information machine reading and detection of the product during subsequent popularization and use.

The invention discloses a display panel and a display device. The display panel comprises a substrate; the light-emitting layer is located on one side of the substrate and comprises a light-emitting unit; the diffusion part is arranged on the side, away from the substrate, of the light-emitting layer, located in the light emitting direction of the light-emitting unit and capable of diffusing external light; the light absorption part is located between the substrate and the first lens, the orthographic projection of the light absorption part on the substrate and the orthographic projection of the light emitting unit on the substrate are at least partially not overlapped, and the light absorption part is used for absorbing the external light refracted by the diverging part. By means of the design, the blackness of the display panel in the screen-off process can be improved.

The invention belongs to the technical field of high polymer material processing, and discloses a green low-carbon glass fiber reinforced nylon 66 composite material capable of being subjected to laser marking as well as a preparation method and application thereof. The material comprises the following components in percentage by weight: 70%-80% of a low-carbon nylon material, 12.4%-25.4% of glass fibers, 0.8%-1.6% of an antioxidant, 0.2%-0.4% of a laser marking agent, 0.3%-0.8% of a high-temperature-resistant lubricant, 0.3%-0.8% of an anti-floating fiber agent, 1.0%-3.0% of a chain extender and 1.0%-2.0% of aniline black masterbatch. By recycling the low-carbon nylon material, reducing carbon emission and adding a small amount of glass fiber again, the skeleton structure of the composite material is recovered, and the use requirements of the composite material are met. The high-performance green low-carbon laser-markable glass fiber reinforced nylon 66 composite material prepared by adopting the formula proportion and the preparation method can be further subjected to injection molding processing to prepare products meeting the requirements of automobile main engine plants, and the products can be subjected to laser marking identification, so that the source can be traced conveniently.

This invention belongs to the field of polyurethane resin technology, and provides a polyurethane resin, polyurethane synthetic leather, its preparation method, and applications. The raw materials for preparing the polyurethane resin, by mass fraction, include the following components: 11%-18% modified polyol, 3%-9% bio-based polyol A, 0.01%-0.02% antioxidant, 0.001%-0.003% catalyst, 5%-7% isocyanate, 0.5%-3% chain extender, 0.1%-0.4% terminator, 0.02%-0.04% anti-tack aid, 0.5%-3% polyether aid, and 68%-73% solvent. The raw materials for preparing the modified polyol include bio-based polyol, alkanolamine, and diacid; the bio-based polyol A includes bio-based polypropylene carbonate diol. The polyurethane synthetic leather prepared by this invention has good anti-slip properties, excellent color fastness to perspiration, and high blackness, making it suitable for yoga mats.

The present invention addresses the problem of realizing bismuth sulfide which readily reflects infrared light and which has a degree of blackness that is equal to or greater than that of carbon black. The present invention pertains to bismuth sulfide particles which include aggregated secondary particles in which primary particles are aggregated, and in which the cumulative 50% diameter (D1) in a cumulative volume distribution, as measured by a laser diffraction / scattering particle size distribution measuring device is 0.2 µm to 10 µm, inclusive. Included is a step in which a bismuth compound and a sulfur compound are heated at 30°C to 100°C, inclusive, in a dispersion medium in the presence of a protective agent.