Direct dyeing type color fused deposition modeling three-dimensional printing apparatus and direct dyeing type color fused deposition modeling three-dimensional printing method

Patent metadata

Field	Value
Publication number	US-2017190115-A1
Application number	US-201615233813-A
Country	US
Kind code	A1
Filing date	Aug 10, 2016
Priority date	Dec 30, 2015
Publication date	Jul 6, 2017
Grant date	—

Abstract

A direct dyeing type color fused deposition modeling three-dimensional printing apparatus includes a forming stage, a forming unit, and a color-inkjet unit. The forming unit is located above the forming stage for providing forming-material layers on the forming stage in sequence. The color-inkjet unit is located above the forming stage for providing color-ink layers on the forming-material layers in sequence, wherein the forming-material layers and the color-ink layers are stacked alternately in sequence to form a colored three-dimensional object. A direct dyeing type color fused deposition modeling three-dimensional printing method is also provided.

First claim

What is claimed is:

1 . A direct dyeing type color fused deposition modeling three-dimensional printing apparatus, comprising:
a forming stage; a forming unit located above the forming stage to provide a plurality of forming-material layers on the forming stage in sequence; and a color-inkjet unit located above the forming stage to provide a plurality of color-ink layers on the forming-material layers in sequence, wherein the forming-material layers and the color-ink layers are stacked alternately in sequence to form a colored three-dimensional object.

2 . The direct dyeing type color fused deposition modeling three-dimensional printing apparatus according to claim 1 , wherein each of the color-ink layers is formed on the corresponding forming-material layer while the corresponding forming-material layer is in a heated and melted state.

3 . The direct dyeing type color fused deposition modeling three-dimensional printing apparatus according to claim 1 , wherein a material of the forming-material layers comprises a dyeable material.

4 . The direct dyeing type color fused deposition modeling three-dimensional printing apparatus according to claim 3 , wherein a material of the forming-material layers comprises a material with hydrophilic base to be dyeable or a material without hydrophilic base initially but generating hydrophilic base through a process of changing functional group to be dyeable.

5 . The direct dyeing type color fused deposition modeling three-dimensional printing apparatus according to claim 1 , wherein a material of the color-ink layers comprises a dye capable of physically attaching or chemically bonding with the forming-material layers.

6 . The direct dyeing type color fused deposition modeling three-dimensional printing apparatus according to claim 1 , further comprising a thermostat chamber, in which the forming stage, the forming unit, and the color-inkjet unit are disposed to form the colored three-dimensional object in the thermostat chamber, wherein a temperature of the thermostat chamber is in a range of 50° C. to 190° C.

7 . The direct dyeing type color fused deposition modeling three-dimensional printing apparatus according to claim 1 , wherein the color-inkjet unit provides the color-ink layers on the entire outer surfaces of the corresponding forming-material layers in sequence.

8 . The direct dyeing type color fused deposition modeling three-dimensional printing apparatus according to claim 1 , wherein the color-inkjet unit provides the color-ink layers on portions of the corresponding forming-material layer which are corresponding to outer surfaces of the colored three-dimensional object in sequence.

9 . The direct dyeing type color fused deposition modeling three-dimensional printing apparatus according to claim 1 , wherein the forming unit includes a supply cartridge, a printing head and a heater, the supply cartridge is configured to store a forming material and communicate with the printing head to supply the forming material to the printing head, and the forming material is adapted to be heated and melted by the heater connected to the printing head and deposited on the forming stage to form the forming-material layer.

10 . The direct dyeing type color fused deposition modeling three-dimensional printing apparatus according to claim 1 , wherein the color-inkjet unit includes multiple supply cartridges and multiple inkjet heads, the supply cartridges are configured to store multiple color ink respectively and communicate with the corresponding inkjet heads, and the inkjet heads provide the corresponding color inks onto the forming-material layer, so as to dye the forming-material layer and form the color-ink layer on the forming-material layer.

11 . The direct dyeing type color fused deposition modeling three-dimensional printing apparatus according to claim 10 , wherein each of the inkjet heads comprises a piezoelectric type inkjet head or a thermal bubble type inkjet head.

12 . A direct dyeing type color fused deposition modeling three-dimensional printing method, comprising:
forming a forming-material layer on a forming stage; forming a color-ink layer on the forming-material layer, forming another forming-material layer on the forming-material layer on which the color-ink layer has been formed; and forming another color-ink layer on the forming-material layer, wherein the forming-material layers and the color-ink layers are stacked alternately in sequence to form a colored three-dimensional object.

13 . The direct dyeing type color fused deposition modeling three-dimensional printing method according to claim 12 , wherein each of the color-ink layers is formed on the corresponding forming-material layer while the corresponding forming-material layer is in a heated and melted state.

14 . The direct dyeing type color fused deposition modeling three-dimensional printing method according to claim 12 , wherein a material of the forming-material layers comprises a dyeable material.

15 . The direct dyeing type color fused deposition modeling three-dimensional printing method according to claim 14 , wherein a material of the forming-material layers comprises a material with hydrophilic base to be dyeable or a material without hydrophilic base initially but generating hydrophilic base through a process of changing functional group to be dyeable.

16 . The direct dyeing type color fused deposition modeling three-dimensional printing method according to claim 12 , wherein a material of the color-ink layers comprises a dye capable of physically attaching or chemically bonding with the forming-material layers.

17 . The direct dyeing type color fused deposition modeling three-dimensional printing method according to claim 12 , wherein the step of forming the colored three-dimensional object is performed in a constant temperature environment, and a temperature of the constant temperature environment is in a range of 50° C. to 190° C.

18 . The direct dyeing type color fused deposition modeling three-dimensional printing method according to claim 12 , wherein the color-inkjet unit provides the color-ink layers on the entire outer surfaces of the corresponding forming-material layers in sequence.

19 . The direct dyeing type color fused deposition modeling three-dimensional printing method according to claim 12 , wherein the color-inkjet unit provides the color-ink layers on portions of the corresponding forming-material layer which are corresponding to outer surfaces of the colored three-dimensional object in sequence.

Assignees

• Univ Nat Taiwan Science Tech
• Nat Taiwan Univ Of Science And Technolo Gy

Inventors

• Cheng Yih-Lin
• Chen Freeman
• Chen jun-hao

Classifications

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B29K2067/046

  PLA, i.e. polylactic acid or polylactide · CPC title

• B05D3/0493

  using vacuum · CPC title

• B33Y30/00 Primary

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

• B29K2105/0032

  Pigments, colouring agents or opacifiyng agents · CPC title