Three-dimensional printing composition

Abstract

A three-dimensional printing composition is disclosed. According to one aspect of the present invention, provided is a three-dimensional printing composition, which is to be used as a raw material for three-dimensional printing and comprises a monofunctional monomer, a bifunctional monomer, an oligomer, an initiator and a photosensitizer.

Description

technical field [0001] The invention relates to a photocurable composition used for three-dimensional printing. Background technique [0002] The content described in this section only provides background information for an embodiment of the present invention, and does not constitute prior art. [0003] If you count the main trends in global industrial technology at present, 3D printers cannot be excluded. Since 3D printing technology is expected to develop into high value-added industries in the future, many companies in various countries are making continuous efforts to develop their own hardware (H / W) and software (S / W). As one of the 3D printing methods, the currently popular 3D printing method is the FDM (Fused Deposition Modeling, Fused Deposition Modeling) method. The FDM method is a method in which 3D printers heat and melt filaments of plastic materials and extrude them, and then harden at room temperature to stack objects. However, this FDM method has the disadv...

AI Technical Summary

Problems solved by technology

[0005] The 3D printer of the SLA method has the advantage of high accuracy of the final shape because it irradiates a high-density laser light to a specific focus to cure the resin, but has the disadvantage that it takes a long time to manufacture the final shape

On the contrary, the DLP type 3D printer has the advantage of considerably shortening the manufacturing time of the shape by irradiating light to the area to cure the resin, but has the disadvantage of reducing the accuracy of the final shape, especially the accuracy of the surface of the shape.

[0006] As mentioned above, the existing 3D printing methods using photocuring each have their own disadvantages, so a new 3D printing method that minimizes the disadvantages is required

[0007] In addition, as the resin used in 3D printing in the past, it has the characteristics of opaque due to the use of opaque plastic materials such as ABS resin or urethane.

Therefore, existing resins have problems of deterioration in aesthetics and optical properties such as transmission or diffusion

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