Three-dimensional object and method of forming the same

A technology for three-dimensional objects and objects, which can be applied to other home appliances, liquid material additive processing, 3D object support structures, etc., and can solve the problems of not providing three-dimensional object formation methods

Active Publication Date: 2022-01-18
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no 3D object formation method that can reproduce (replicate) complex and precise structures from 3D data has yet been provided

Method used

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  • Three-dimensional object and method of forming the same
  • Three-dimensional object and method of forming the same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0092] [Three-dimensional Object Formation Method of First Embodiment]

[0093] The three-dimensional object forming method of the first embodiment of the present invention includes a first step and a second step, and further includes other steps as necessary.

[0094] The three-dimensional object forming method of the first embodiment repeats the above steps multiple times. The number of repetitions varies depending on the size, shape, structure, etc. of the three-dimensional object to be formed, and cannot be generalized. However, when the thickness of each layer is in the range of 10 μm to 50 μm, the object can be precisely formed without peeling off the layers. Therefore, layers must be repeatedly stacked up to the height of the three-dimensional object to be formed.

[0095] The three-dimensional object forming method of the first embodiment can efficiently form a soft object made of a hydrogel produced from a hydrogel precursor.

[0096] The steps of the three-dimensi...

no. 2 approach

[0117] [Three-dimensional Object Formation Method of Second Embodiment]

[0118] The three-dimensional object forming method of the second embodiment of the present invention includes a first step, a third step, and a fourth step, preferably includes a fifth step, and further includes other steps as necessary.

[0119] The three-dimensional object forming method of the second embodiment repeats the above steps multiple times. The number of repetitions varies depending on the size, shape, structure, etc. of the three-dimensional object to be formed, and cannot be generalized. However, when the thickness of each layer is in the range of 10 μm to 50 μm, the object can be precisely formed without peeling off the layers. Therefore, layers must be repeatedly stacked up to the height of the three-dimensional object to be formed.

[0120] In forming a soft object made of a hydrogel produced from a hydrogen precursor by the three-dimensional object forming method of the second embodime...

Embodiment approach

[0151] The specific implementation of the three-dimensional object forming method of the present invention will be explained below.

[0152] Soft hydrogel objects are obtained using a soft object material as the first liquid (object composition) and a hard object material as the second liquid (support composition).

[0153] As mentioned above, in order to obtain a soft three-dimensional object, a soft object material is deposited on the object part and a hard object material is deposited on the support part. To obtain a hard three-dimensional object, conversely, a hard object material is deposited on the object part and a soft object material is deposited on the support part.

[0154] The method for delivering the liquid may be an inkjet method or a dispenser method as long as they can apply liquid droplets to intended positions with appropriate precision. Essentially the same implementation applies to either case. Therefore, the following explanation will mainly focus on th...

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Abstract

A three-dimensional object forming method is provided, comprising: a first step of forming a film by delivering a first liquid comprising at least water and a hydrogel precursor; and a second step of curing the film formed in the first step, wherein the The first step and the second step are repeated multiple times.

Description

technical field [0001] The present invention relates to a complex and precise three-dimensional object, and a three-dimensional object forming method that can easily and efficiently form the three-dimensional object. Background technique [0002] As a method for forming a layer stack (stack of layers), there has been proposed a method in which layers of a liquid photocurable resin are sequentially irradiated layer by layer with laser light, particularly ultraviolet rays, thereby forming a three-dimensional object ( See eg PTL 1). However, according to this method, it is necessary to keep a large stock of liquid photocurable resin, which necessitates enlargement of the device. Another problem is that in order to stabilize the quality of the liquid photocurable resin, temperature control and the like are necessary. [0003] In addition, in recent years, an inkjet optical modeling (modeling) system configured to draw an image at a necessary part of an object with a liquid pho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/106B33Y10/00
CPCB33Y10/00C08F292/00C08K3/346C08K5/07C08K5/14C08K5/42G09B23/303C08F290/067B29C64/112C09D7/20C09D7/61B33Y70/10C08L33/24C08F222/10C08F220/54C08K5/08C09D4/00B29C67/0003B29K2077/00B29K2105/0002B29K2995/0021B29K2995/007B29L2031/7534B29C2035/0827B29L2031/7532
Inventor 法兼义浩
Owner RICOH KK
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