30results about How to "Low print temperature" patented technology

The invention discloses a heat transfer printing colored tape capable of being used on a band-shaped or card-shaped label. The heat transfer printing colored tape comprises a tape base, one face of the tape base is coated with a printing ink layer, and the other face of the tape base is coated with a heat-resisting coating; the printing ink layer coats the tape base by using a heat melting way, and the printing ink layer comprises binders, coloring agents, filler and auxiliaries. A preparation method of the heat transfer printing colored tape comprises the steps that the binders, the coloring agents, the filler and the auxiliaries are fully mixed and dispersed, and then grinded to obtain printing ink layer coating liquid; the front face of the tape base is coated with the printing ink layer coating liquid by using a coating machine; the back face of the tape base are uniformly coated with organic silicone emulsion or a polyimide solution through the coating machine, and the heat-resisting coating is formed through drying the organic silicon emulsion or the polyimide solution. According to the heat transfer printing colored tape, the heat-resisting coating makes contact with a printing head, and the printing ink layer makes contact with the label, the printing head generates heat when is operated, and printing ink is dissolved and stamped on the label through the heat-resisting coating to form characters and images. The heat transfer printing colored tape can be used on the band-shaped or card-shaped label, and has better scratch resistance and durability.

The invention relates to a preparing method of a 3D printing intelligent deforming material. The method aims at printing complex irregular shapes such as a gradient structure, a biology structure, a spiral structure and a microstructure, the method is precise and efficient, simple and easy to implement, and the 3D printing intelligent deforming material of a complex structure and with large deforming is prepared, and the method comprises following steps of firstly, preparing of polymer wires, and secondly, 3D printing of the intelligent deforming material. On the basis of the 3D printing technology, polyether-ether-ketone powder and a carbon fiber serve as the main material, through control design of the printing shape in the 3D printing process, the path can be programmed, the crossed angle between layers can be changed, the pre-deformed structure is more complicated and diverse, deforming is benefited due to being parallel to the printing path, the larger deforming and the deformingrestore rate can be obtained, through the preparing method, the machining step is simplified, production cost is saved, and machining efficiency is improved.

The present invention provides a copolyester preparation method comprising successive esterification and polycondensation of a dihydric alcohol, a fatty diacid and two or more aromatic diacid in the presence of a catalyst for preparation of an amorphous copolyester. The present invention also provides a method for using the copolyester material for preparation of a wire material and application of the wire material in 3D printing. The printing temperature of the wire material used in fused deposition method 3D printing is low, an obtained product is small in size deviation, and sample shrinkage rate is low.

The invention discloses a preparation method for a compounded thermal transfer ribbon. The compounded thermal transfer ribbon comprises a ribbon base, wherein one surface of the ribbon base is coated with an ink layer; the other surface of the ribbon base is coated with a heat-resistant coating; a bonding material, a coloring agent, a filling material and an auxiliary are fully mixed and dispersed, so that an ink layer coating solution is obtained; the front surface of the ribbon base is coated with the ink layer coating solution through a coating machine; the back surface of the ribbon base is coated with the raw materials of the heat-resistant coating through the coating machine; the surface, to which the heat-resistant coating is attached, is in contact with a printing head; the ink layer is in contact with a label; and during operation, the printing head generates heat, and the ink layer is molten and stamped onto the strip-shaped or card-shaped label through the heat-resistant coating, so that clear characters and images are formed. Compared with the prior art, the compounded thermal transfer ribbon has higher scratch resistance, durability and solvent resistance, and in addition, can be well applied to strip-shaped or card-shaped labels with small areas, and the printing temperature is low by adopting the compounded thermal transfer ribbon disclosed by the invention, so that equipment is protected effectively.

The invention belongs to the field of FDM ((fused deposition modeling) 3D printing and discloses a low-temperature FDM 3D printing material and preparation and application thereof. The material is prepared from PCL (polycaprolactone), graphite, EBS, SiO2 and magnesium stearate. A preparation method includes steps: subjecting PCL masterbatch to melt mixing with filler such as graphite, EBS, SiO2 and magnesium stearate according to a certain proportion through double screws, crushing, granulating, extruding through a single screw, and stretching to obtain wires uniform and appropriate in size. By adoption of the process, the problem of failure in 3D printing of PCL according to an FDM method is solved, and simplicity, feasibility, low preparation cost and high printing precision are realized. Due to high selectivity and low 3D printing equipment requirements, the low-temperature FDM 3D printing material can be applied to normal domestic FDM 3D printers and has important values and significances in the field of FDM 3D printing.

The invention discloses a PBS/carbon material composite wire material for 3D printing, and a preparation method thereof. The technical scheme of the invention is that the components of the formula comprise, by weight, 70-80 parts of PBS, 2-50 parts of a carbon material 0.1-0.5 part of a chain extender, 0.1-0.5 part of a cross-linking agent, 0.1-2 parts of a nucleating agent, 0.1-0.5 part of a heat stabilizer, 0.2-1 part of an antioxidant, and 0.2-1 part of a lubricant. According to the present invention, the polymer material for 3D printing is prepared by using the completely degraded biological material poly(butylene succinate) (PBS), has advantages of low printing temperature, good tensile strength and good flexibility compared to the traditional polylactic acid (PLA) wire material, is suitable for a variety of 3D molding technologies, and has wide application prospects in the 3D printing field.

The invention discloses a continuous fiber reinforced composite 3D printing head with a self-cleaning function, and relates to the technical field of 3D printing. The continuous fiber reinforced composite 3D printing head comprises a heating assembly, a fixing assembly and a metal capillary tube, the heating assembly comprises at least two stacked heating blocks, a heat insulation layer is arranged between the adjacent heating blocks, and the heating assembly is fixed into a whole through the fixing assembly; and the metal capillary tube penetrates through the heating assembly from top to bottom, the two ends of the metal capillary tube are an upper feeding end and a lower discharging end respectively, and the lower discharging end serves as a nozzle and extends out of the heating assembly. A feeding channel and a forming channel are integrated, and dynamic dead angles in the printing head are thoroughly eliminated. Meanwhile, the size of the feeding channel is designed to be matched with the diameter of a wire material, so that the wire material peels off resin staying for a longer time and carries out possibly formed residues in the moving process, and the self-cleaning function is achieved. Compared with the prior art, the technical problem that an existing nozzle is prone to being blocked is effectively solved.

The invention discloses a high-strength low-shrinkage PETG-G material for 3D printer consumables and a preparation method thereof. The high-strength low-shrinkage PETG-G material for 3D printer consumables comprises the following components in parts by weight: 60-80 parts of a PETG resin, 20-40 parts of a PBAT resin, 5-15 parts of an ABS resin, 1-5 parts of a compatilizer, 0.1-0.5 part of a lubricant, 0.1-0.5 part of an antioxidant and 0.1-0.5 part of diffusion oil. The high-strength low-shrinkage PETG-G material for 3D printer consumables has the beneficial effects that the printing wire drawing performance is improved, the printing precision is improved, and the printing temperature is reduced.

The invention relates to coated matte PP synthetic paper for thermal transfer ribbon printing. The synthetic paper comprises a PP synthetic paper base material and a coating layer coating the surfaceof the base material, wherein the coating layer comprises the following raw materials in parts by weight: on the basis of the solid weight part of a heat insulation layer and in terms of solid content, 100 parts of the heat insulation layer, 80-180 parts of an adhesive, 0.08-0.15 part of a water-retaining agent, 0.5-1.0 part of a lubricant, 0.2-0.8 part of a defoaming agent and 500-1300 parts of water (wherein the parts of moisture functioning as a solution are included in the parts of the water). The heat insulation layer is used in the coating layer, so the energy transfer loss of a printinghead is effectively reduced, poor transfer caused by temperature reduction of a printed thermal transfer ribbon is prevented, and the energy level of the printing head is reduced.

The invention discloses a preparation method of a nanotube composite wire containing a polyolefin ionomer. The technical scheme of the invention is as follows: 1, a formula is prepared from the ingredients in percentage by weight: PBS (Poly Butylene Succinate), the polyolefin ionomer, halloysite nanotubes, a coupling agent, a nucleating agent, a chain extension agent and the like; 2, the preparation method comprises the steps of (1) drying; (2) material weighting; (3) kneading at a high speed; (4) melting and extruding; (5) cooling and tracking; (6) rolling and bundling. According to the preparation method of the nanotube composite wire containing the polyolefin ionomer, disclosed by the invention, a high polymer material which is suitable for 3D (Three-dimensional) printing is prepared by adopting completely degraded biological materials of the PBS and the halloysite nanotubes, and better tensile strength and better flexibility are obtained while lower printing temperature is obtained.

The invention provides a 3D printed heart stent for a cardiac interventional surgery. The 3D printed heart stent for the cardiac interventional surgery comprises poly-L-lactic acid as a matrix polymerizer, and a toughening agent, starch, a filler, a lubricant and a stabilizer as auxiliary agents. The 3D printed heart stent for the cardiac interventional surgery is prepared by blending, dissolving,filtering and concentrating the poly-L-lactic acid as the matrix polymerizer, and the toughening agent, the starch, the filler, the lubricant and the stabilizer as the auxiliary agents to obtain a printing paste, and finally performing 3D printing. The 3D printed heart stent for the cardiac interventional surgery comprises the poly-L-lactic acid, is a biodegradable material, does not contain anymetal component and is not affected by a magnetic field, so that examination of nuclear magnetic resonance is not affected; meanwhile, formation of a thrombus is unlikely, long-time use of an anticoagulant medicine for preventing thrombosis is not required, and after vascular functions are restored in a body, the 3D printed heart stent can be completely dissolved by itself and the rate of restenosis is extremely low.