Photocurable support material composition for inkjet 3D printers, ink for inkjet 3D printers, cartridge for inkjet 3D printers, method for producing support material and method for producing optically shaped article

A technology of 3D printers and support materials, applied in the direction of 3D object support structures, manufacturing tools, additive manufacturing, etc., can solve the problem of low hardness of cured products, and achieve the effect of excellent water solubility and sufficient hardness

Active Publication Date: 2019-04-16
NIPPON SHOKUBAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above support materials are excellent in water solubility, they have the problem of low hardness of cured products

Method used

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  • Photocurable support material composition for inkjet 3D printers, ink for inkjet 3D printers, cartridge for inkjet 3D printers, method for producing support material and method for producing optically shaped article
  • Photocurable support material composition for inkjet 3D printers, ink for inkjet 3D printers, cartridge for inkjet 3D printers, method for producing support material and method for producing optically shaped article
  • Photocurable support material composition for inkjet 3D printers, ink for inkjet 3D printers, cartridge for inkjet 3D printers, method for producing support material and method for producing optically shaped article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] 60 parts by mass of potassium acrylate (manufactured by Nippon Shokubai Co., Ltd.) as a water-soluble ethylenically unsaturated monomer and 1 part by mass of Irgacure 2959 (manufactured by BASF Japan Co., Ltd.) as a photopolymerization initiator were added to 40 parts by mass of water, Stir and mix to obtain a support material composition.

Embodiment 2～6、 comparative example 1～5

[0118] A support material composition was obtained in the same manner as in Example 1 except that Examples 2 to 6 and Comparative Examples 1 to 5 were changed to the compounding ratios (parts by mass) described in Table 1 below. It should be noted that in Table 1, a commercial product manufactured by Nippon Shokubai Co., Ltd. was used for sodium acrylate, a commercial product manufactured by Nippon Shokubai Co., Ltd. was used for zinc acrylate, and a commercial product manufactured by Nippon Shokubai Co., Ltd. was used for acrylic acid. For hydroxyethylacrylamide, a commercial product manufactured by Tokyo Chemical Industry Co., Ltd., for acryloylmorpholine, a commercial product manufactured by Tokyo Chemical Industry Co., Ltd., and for ethylene glycol, a commercial product manufactured by Nippon Shokubai Co., Ltd. , PPG (polyoxypropylene glycol: P-400) used a commercial product manufactured by Adeka Corporation, Irgacure 184 used a commercial product manufactured by BASF Japan...

Embodiment 7～21

[0153] A support material composition was obtained in the same manner as in Example 1, except that Examples 7 to 21 were changed to the compounds and compounding ratios (parts by mass) described in the following Table 2, respectively. The obtained supporting material composition was evaluated in the same manner as in Example 1 by the evaluation method described above. The results are shown in Table 2.

[0154]

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Abstract

A photocurable support material composition for inkjet 3D printers according to the present invention contains a photopolymerization initiator and a water-soluble ethylenically unsaturated monomer that contains an ionic group and a counter ion. It is preferable that the ionic group is at least one group selected from the group consisting of a carboxylic acid group, a phosphoric acid group and a sulfonic acid group. It is also preferable that the counter ion is at least one ion selected from the group consisting of a sodium ion, a potassium ion and an ammonium ion.

Description

technical field [0001] The present invention relates to a photocurable support material composition for an inkjet 3D printer, an ink for an inkjet 3D printer, an ink cartridge for an inkjet 3D printer, a method for manufacturing a support material, and a method for manufacturing an optically modeled object. Background technique [0002] In recent years, there has been proposed a photo-sculpting method based on an inkjet method, in which photo-sculpting is performed by curing and laminating liquid photocurable resins discharged from inkjet nozzles. The ink for an inkjet 3D printer using this photo-modeling method includes: a model material constituting a molded body by photocuring such as UV; and a support material used as a support material when the model material is deposited three-dimensionally. Overhanging structures and hollow structures can be molded by laminating model materials on support materials. [0003] Patent Document 1 describes an ink set for 3D modeling, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/40B33Y10/00B33Y70/00C08F20/06
CPCB33Y70/00B33Y10/00B29C64/40C08F20/06C08F220/06C08F120/06C08F2/48B33Y70/10C08F220/20C08F220/281C08F265/06C08K5/09C08L33/02B29K2105/0002
Inventor 辻野恭范浦田稔真岛宣明
Owner NIPPON SHOKUBAI CO LTD
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