Chinese Academy of Sciences

Boe Technology Group Co., Ltd.

The Procter Gamble Company

Hefei Xinsheng Optoelectronics Technology Co., Ltd.

Beijing Zhongke Nano-think Print Technology Co., Ltd.

Yanlin Song

Haihua Zhou

Ping Wang

Gang Li

Libin Wang

Huiling Li

Dacheng Deng

Xingye Zhang

Ming Yang

Yue Li

Jie Ma

Min He

Wei Wu

Haitao Liu

Lei Jiang

Liang Yang

Bin Su

Xu Huang

Jianguo Yang

Ruifeng Wang

Ke Xiao

Heng Sun

Qiang Yang

Yunxia Liu

Shutao Wang

Fengyu Li

Biqian Liu

Mingming Qin

Minxuan Kuang

Lianming Yang

Mingzhu Li

Ce Tian

Peiyi Yong

Jiancheng Pan

Ming-Ming Qin

A method of securing a layer of colloidal crystals to a substrate is provided, to enhance durability of an aesthetic effect provided by the colloidal crystals. The method involves depositing a layer of colloidal crystals formed of mono-dispersed particles on the substrate. Subsequently, a layer of water-borne coating is applied to the layer of colloidal crystals. To be effective, the water-borne coating should have a curing temperature that is less than the polymer glass transition temperature of the mono-dispersed particles forming the colloidal crystals. The water-borne coating penetrates through the colloidal crystals to the substrate thus retaining the colloidal crystals in place. The curing temperature of the water-borne coating ensures that the colloidal crystals are not damaged by the process for curing the coating.

Article with aesthetic substrate

The present disclosure provides an adhesion strength test jig includes a plurality of adjusting rods which are connected in an end-to-end manner so as to define an accommodating space for accommodating an adhered element. Each of the adjusting rods includes a rod body and a sliding block located at one end of the rod body, and the sliding block of each of the adjusting rods is capable of sliding along the rod body of another adjusting rod connected thereto, so as to adjust a size of the accommodating space.

Adhesion strength test jig and adjusting rod thereof

The present invention discloses a method for preparing nano-copper powder, comprising: (1) providing a dispersion solution, containing copper salt precursor and disperser, the disperser is dissoluble in both water and weak solvents, and is an acrylic modified polyurethane disperser; (2) providing a reducer dispersion solution, containing reducer, the reducer is organic borane; (3) contacting the reducer dispersion solution with the dispersion solution in a condition enough to reduce the copper salt precursor by the reducer into elementary copper; (4) separating copper nano-particles from reaction solution obtained by step (3), and drying separated copper nano-particles by spray drying, so as to obtain the nano-copper powder. The nano-copper powder prepared by the method in accordance with the present invention is dispersible in both water and environment-friendly weak solvents, which can be used to prepare weak solvent-type electrically conductive ink.

Method for preparing nano-copper powder

A method for preparing nano-silver powder dispersible in environment friendly weak solvents, and an electrically conductive ink comprising the nano-silver powder are disclosed. The disclosure describes a disperser dissoluble in water and weak solvents and an alcohol amine as reducing agent to prepare mono-dispersed nano-silver, and employs ultrafiltration for purification and spray drying process to obtain a nano-silver powder dispersible in weak solvents, and thereby obtain an eco-solvent nano-silver electrically conductive ink. The electrically conductive ink in accordance with the disclosure has advantages of high safety, low volatility, low toxicity, high flash point, resistant to ultraviolet radiation and moisture etc., and can be used with uncoated bearing substrates, and is suitable for use in outdoor environments.

Method for preparing nano-silver powder and application in preparation of electrically conductive ink of the nano-silver powder and electrically conductive ink

A drop ball test fixture includes a bracket, first stoppers and connecting components. The bracket has bearing surfaces for bearing edges of a panel and to position the panel in a direction parallel to the bearing surfaces. At least part of each of the first stoppers is located above corresponding one of the bearing surfaces. Each connecting component includes a guide rod, a guide groove and a second stopper. The guide groove is formed on corresponding one of the first stoppers. One end of each of the guide rod is connected to the bracket while the other end thereof passes through the guide groove. Connecting structures are provided at different heights of the guide rod, and the second stopper is matched with and connected to corresponding one of the connecting structures at different heights above the guide groove so as to stop the upward movement of the first stopper.

Drop ball test fixture

A photonic crystal microsphere, comprising: a plurality of mono-dispersed polymer particles in a closely-packed and regularly-ordered structure, with interstition therebetween, forming the photonic crystal microsphere; and a co-assembly material contained in the interstition. The photonic crystal microsphere provides a structure of enhanced strength and a good color effect.

Photonic crystal microsphere

A coating material for an aluminum substrate for inkjet computer-to-plate and preparation method and use of same. The composition of the coating material is: high polymer 5-40 wt %; nano-sized and/or micro-sized oxide particles 5-30 wt %; organic solvent constituting the remainder. The high polymer is at least one selected from the group consisting of MMA-BMA-MA terpolymer resin, phenolic resin, epoxy resin, polyurethane, polyester, urea-formaldehyde resin, polyvinyl formal, polyvinyl butyral and gum arabic. The preparation method for obtaining the coating material is to mix the ingredients together and stir at room temperature. A spin coating method or a roll coating method is used to coat the coating material onto a clean aluminum substrate having not undergone electrolytic graining and anodic oxidation treatment, and then the substrate is baked, resulting in the required roughness.

Coating material for aluminum substrate for inkjet computer-to-plate and preparation and use of same

An ink used for direct inkjet printing to plate based on nanometer material and a method for preparing same. Of the baseline total amount of the ink, 5 to 30 wt % is of film-forming resin, 0.01 to 5 wt % is of nanometer or micrometer dye, 30 to 60 wt % is of organic solvent, 0.01 to 5 wt % is of humectant, and water provides the balance; these ingredients are stirred and mixed at room temperature, and after the film-forming resin is completely dissolved, impurities and/or insoluble substances in the present invention are removed by means of multi-level filtering, and the obtained filtrate is the present ink. The ink in the present invention is sprayed on a metal base material surface by an inkjet printer to form a printing pattern which, after curing, can be directly printed on the machine, thus reducing chemical pollution and post-processing processes, while a press run of the printing plate can be up to 100,000 copies at a resolution of up to 175 lpi.

Ink for direct inkjet printing to plate based on nanometer material and method for preparing the same

A water-based ink for use in a computer-to-plate inkjet printing and a preparation method therefor. A polymer of 5 to 40 wt %, an additive of 0.01 to 10 wt %, a dye or pigment of 0.01 to 10 wt %, an organic solvent of 1 to 30 wt %, an anti-foaming agent of 0 to 5 wt %, and deionized water are stirred and mixed at room temperature. When the polymer is dissolved, the mixed solution is filtered. The filtrate is the water-based ink. The water-based ink is sprayed via a computer-to-plate machine onto a surface of a metal substrate (which may be an aluminum plate, a zinc plate, or a copper plate) to form a graphic region. A printing plate allowing for computer-to-plate printing is acquired after solidification. The printing plate acquired is allowed to achieve a halftone dot reproduction rate between 2 and 99% and a recognition rate of 175 lpi.

Water-based ink for computer-to-plate inkjet printing and preparation method therefor

Provided is a method of forming large-area directionally aligned nanowires on a silicon wafer surface with hydrophobic silicon pillars so as to form microelectrode-pair arrays, which belongs to the field of electronic circuit. The method includes grafting fluoroalkylsilane on the surface of a silicon wafer with hydrophilic silicon pillar arrays; increasing the contact angle between the surface of the hydrophilic silicon pillar arrays and water from 10&#xb0; to 150&#xb0; above and obtaining the silicon wafer with hydrophobic silicon pillar arrays; driving water solution containing materials used for forming nanowires to flow across the surface with the hydrophobic silicon pillar arrays uniformly, so that directionally aligned nanowires are formed on the tops of each two adjacent silicon pillars in the hydrophobic silicon pillar arrays; each of the nanowires connects the two adjacent silicon pillars together so as to form a microelectrode-pair, and a plurality of microelectrode-pairs constitute the microelectrode-pair arrays.

Method for forming microelectrode-pair arrays on silicon substrate surface with hydrophobic silicon pillars

A method for preparing a metal substrate for inkjet CTP, comprising: treating a metal substrate by anodizing or non-anodizing (such as sandpaper burnishing, sand blasting, polishing, or brushing), and then applying a hydrophilic polymer paint on the surface of the metal substrate. Due to the existence of nano-size or micron-size oxide particles in the hydrophilic polymer paint, the metal substrate has high specific surface energy, while the metal substrate has a certain roughness, therefore the metal substrate has ink absorbency and good abrasive resistance. The metal substrate can reduce the spread of ink droplets and produces print image having better resolution and definition. The non-anodizing method can avoid environmental pollution which is caused by waste acid and waste alkali discharge of anodizing method.

Manufacture method of metal plate substrate for computer-to-plate of inkjet printing

Disclosed are a kind of ink used for ink-jet computer-to-plate (CTP) technology and the preparation method thereof. The ink comprises, in mass percent, 5% to 20% of cosslinkable resin, 5% to 25% of light solvent, and 55% to 90% of deionized water. The preparation method includes: mixing the components with stirring at room temperature; multistage filtering for removing insoluble substance and impurity in mixed solution after the crosslinkable resin being completely dissolved in the solvent; and thus to obtain the ink. An image with high resolution can be formed upon printing the ink on a treated aluminum plate and thermocuring. The aluminum plate can be printed directly by a printer, which reduces post treatment.

Ink used for ink-jet computer-to-plate and preparation method thereof

A large-format printing apparatus includes multiple printing head units. Each of the printing head units can intermittently and steppingly move in a first direction and has a printing nozzle which can move reciprocatingly in a second direction which is perpendicular to the first direction for printing sub-images. Before printing starts, the printing head units are disposed at one end of a printing medium, and arranged to seamlessly splice the sub-images printed by the printing head units into a complete large-format printing image.

Large-format inkjet printing apparatus

An ink for inkjet computer-to-plate and a preparation method of the same are provided. Calculated in mass percentage based on the total mass of the ink, the ink comprises 10%&#x2dc;30% of cross-linkable resin, 10%&#x2dc;35% of solvent with a low boiling point, 5%&#x2dc;30% of poor solvent with a high boiling point and 5%&#x2dc;75% of bulk solvent. The preparation method comprises the following steps: mixing the above components and agitating at room temperature; after the cross-linkable resin is dissolved, ball milling and filtrating to remove insoluble substance and/or impurities in the liquid obtained by the ball milling. The ink can be formed into an image by printing on the treated surface of aluminum plate using ink-jet printer, and after heat cured, it can form an image with a high resolution and be used to print directly on machine, thus reducing post treatment process and obtaining the plate of ink-jetting direct plate-making.

Ink for inkjet computer-to-plate and preparation method of the same

The present invention provides an anti-frost coating, which forms a coat having a hydrophilic and hydrophobic composite structure after being applied on a substrate, and contains a hydrophobic polymer and a hydrophilic polymer. The application method of the anti-frost coating comprises: dissolving the hydrophilic polymer and the hydrophobic polymer in a solvent to form a homogeneous solution, coating the solution on a substrate to form a film, drying and curing to form an anti-frost coat with a hydrophilic and super-hydrophobic composite structure including a super-hydrophobic surface layer and a hydrophilic inner layer. Water drips can roll off easily and the dust and impurities deposited on the surface can be easily removed. The anti-frost effect is desirable.

Growing community of inventors

Beijing, China

Yanlin Song