10 results about "Varnish" patented technology

The present invention provides a preparation method for a light-heat dual-cured woodware UV varnish coating. The method comprises: uniformly mixing an acrylic acid monomer, a catalyst and a polymerization inhibitor; adding the resulting mixture to epoxy resin with a temperature of 90-120 DEG C to carry out a reaction at a certain temperature; adopting acid value detecting to monitor the extent of the reaction, wherein the epoxy acrylate (EA) is obtained when the acid value is reduced to less than 5 mg/g; adding a thermal initiator, a photoinitiator, an antifoaming agent, a wetting and dispersing agent, a thickening agent and a leveling agents to the EA, then mixing and stirring to obtain the UV varnish coating. The prepared UV varnish coating through the method provided by the present invention has the dual functions of light curing and heat curing, the surface dry can be rapidly achieved in 4-8 seconds under the light intensity of 250-400 mJ/cm<2>, the film forming and the curing can be achieved in 1-5 hours at the temperature of 50-70 DEG C. In addition, the prepared UV varnish coating has characteristics of high adhesion, good chemical corrosion resistance, high film hardness and low cost, and provides more excellent construction performance, curing method and film performance than ordinary UV-cured coatings.

The invention discloses a formula and a production method of a varnish, especially a varnish applied on objects used outdoors. With the varnish, the objects can be prevented from discoloration caused by sunlight ultraviolet irradiation. The invention aims at providing the anti-violet varnish preventing bottom-layer discoloration, and a preparation method thereof. With the varnish, bottom-layer color of a coated object can maintain unchanged after the object is irradiated by ultraviolet outdoors for a long time. According to the invention, main film-forming substances comprise silicone-modified acrylic resin in cooperation with an aliphatic polyurethane curing agent, such that a system is provided with excellent weatherability and chemical resistance. Under dual effects of a light stabilizer and a nano additive, a varnish film can effectively absorb ultraviolet with different wavelengths for a long time, and a bottom material can be prevented from discoloration caused by ultraviolet irradiation. The varnish is widely applied on outdoor objects such as buildings and ornamental objects in parks, squares, and the like.

The invention discloses a preparation method for novel multicolor paint with aqueous reflection and insulation, and relates to the technical field of the production of multicolor paint. Through the preparation method comprising the steps of preparing basic varnish, preparing continuous-phase emulsion, pelleting and preparing finished product varnish, the multicolor paint has good aqueous reflection and insulation effects, and the use of the multicolor paint with aqueous reflection and insulation is further convenient.

The invention discloses water-based flashing paint suitable for ordinary aluminum powder and a preparation method thereof. The water-based flashing paint is acrylic acid amino baking varnish, and the aluminum powder which is not processed can be directly added into a water-based formula, and the storage stability is good. The water-based flashing paint comprises, by weight parts, 6-10 parts of aluminum powder, 5-8 parts of cosolvent, 80-90 parts of paint oil. The paint oil comprises, by weight parts, 50-55 parts of water based hydroxy acrylic resin, 8-15 parts of amino resin, 0.3-0.5 part of N,N-dimethylethanolamine, 10-20 parts of water, 5-10 parts of cosolvent A, 0.1-0.3 part of base material wetting agent and 0.2-0.5 part of flatting agent. The prepared water-based flashing paint is suitable for the fields such as electric vehicles and motorcycles, not only meets environmental protection requirements and has the performance not lower than that of a solvent based coating, but also has a lower comprehensive cost than the solvent based coating, and the span of replacing an oil paint with the water-based paint is implemented.

The invention discloses a method and a device for obtaining holographic patterns. The device comprises a transmission unit which includes an unwinding roll and a wind-up roll and substrate material operating on the transmission unit; a coating unit used for coating UV cured varnish on a given position of the substrate material is arranged at the downstream of the unwinding roll; a holographic template is arranged at the downstream of the coating unit; and the holographic template is used for transferring holographic patterns of the holographic template to the surface of the UV cured varnish on the substrate material through mould pressing and internally provided with a UV lamp used for drying and solidifying the UV cured varnish, and the part of the holographic template contacting with the UV cured varnish is made of transparent material. Because the holographic template is internally provided with the UV lamp, and the part of the holographic template contacting with the UV cured varnish is made of transparent material, the mould pressing and solidification can be completed simultaneously, thereby saving the working time, preventing dust or powders and the like from falling in the UV cured varnish, and ensuring the quality of a finished product.

The invention relates to a novel ink which comprises printing ink, a mixing agent A, a mixing agent B and a brightening agent The parts by weight of the printing ink is 1,500 parts ; the mixing agent A comprises 10-15 parts of viscosity reducing agent and 15-25 parts of varnish; the mixing agent B comprises 5-15 parts of white drying paste and 3-6 parts of fine flour; and the brightening agent is 10-20 parts by weight, wherein the printing ink, the viscosity reducing agent, the varnish, the white drying paste, the fine flour and the brightening agent are common commodities sold in market; and the fine flour is preferably corn flour. The novel ink can print high-grade gold foil paper, aluminum foil paper and various metal paperboards on a common offset machine without the limitation of temperature and printing equipment, has the printing effect which is the same with imported temperature control multicolour printing equipment, high fineness, short drying time and high printing speed and greatly reduces the printing cost.

The invention discloses glass slurry for an automobile compression molding front windshield. The glass slurry is prepared from the following raw materials in parts by weight: 65-85 parts of glass powder; 15-35 parts of an inorganic pigment; 18-30 parts of varnish; the glass powder is prepared from the following raw materials in parts by weight: 40-60 parts of Bi2O3; 25-35 parts of SiO2; 0-10 partsof B2O3; 0-10 parts of ZnO; 0-5 parts of ZrO2; 0-10 parts of TiO2; 0-5 parts of Al2O3; 0-2 parts of Fe2O3; 0-2 parts of NaF; 0-5 parts of MgO; 0-5 parts of CaO; 0-5 parts of Li2O; 0-2 parts of K2O; and 0-5 parts of Na2O. The invention further provides a preparation method of the glass slurry for the automobile compression molding front windshield. The preparation method comprises the following steps: preparing the glass powder; preparing varnish; preparation of slurry. The glass slurry has excellent acid resistance and adhesion resistance when applied to the automobile front windshield, and also has the advantages of printability, covering property, proper expansion coefficient range and the like.

The invention relates to the technical field of automobile body coating, in particular to an automobile body coating method capable of reducing VOC emission. The invention provides the automobile body coating method capable of reducing VOC emission. The automobile body coating method comprises the following steps that pretreatment, electrophoresis, electrophoresis drying, electrophoresis polishing, coating A spraying, coating B spraying, flash drying, coating C spraying and finish paint drying are sequentially carried out on an automobile body; wherein a coating A is made of powdery colored paint or water-based intermediate paint; a coating B is made of water-based pearlescent paint, water-based metallic paint or water-based colored paint; and a coating C is made of powdery varnish or solvent type varnish. According to the automobile body coating method provided by the invention, the VOC emission in the coating process can be effectively reduced through cooperation of a coating process and the spraying materials.

The present invention provides compositions, such as varnishes, ink vehicles, and finished inks, having high bio-renewable carbon (BRC) content. The compositions comprise protein and colophony.