Three-dimensional curing of a two-dimensionally printed object

• US 10,357,960 B2
• Filed: 10/06/2016
• Issued: 07/23/2019
• Est. Priority Date: 10/30/2015
• Status: Active Grant

• Current Assignee: Nike, Inc.
• Original Assignee: Nike, Inc.
• Inventors: Miller, Todd W.
• Primary Examiner(s): Del Sole, Joseph S
• Assistant Examiner(s): Hohenbrink, Jr., Lawrence D.
• Application Number:
  US15/287,480
• Publication Number:
  US 20170120514A1
• Time in Patent Office: 1,020 Days
• Field of Search: 264308, 264494, 4251744, 425375
• CPC Class Codes: A43B 23/0245 characterised by the constructive form
• CPC Class Codes: A43D 8/22 by embossing or printing printing per se, stamping per se B41
• CPC Class Codes: A43D 95/14 incorporating marking, printing, or embossing apparatus ornamentation of shoe part blanks A43D8/16; printing per se , stamping per se B41
• CPC Class Codes: B29C 64/106 using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
• CPC Class Codes: B29C 64/188 involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control surface shaping B29C59/00; after-treatment of articles without altering their shape B29C71/00
• CPC Class Codes: B29C 64/264 Arrangements for irradiation
• CPC Class Codes: B29C 64/268 using laser beams; using electron beams [EB]
• CPC Class Codes: B29C 64/277 using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
• CPC Class Codes: B29C 64/282 of the same type, e.g. using different energy levels
• CPC Class Codes: B29C 69/02 of moulding techniques only
• CPC Class Codes: B29D 35/126 Uppers
• CPC Class Codes: B29D 35/146 Uppers
• CPC Class Codes: B29L 2031/505 Uppers
• CPC Class Codes: B33Y 10/00 Processes of additive manufacturing
• CPC Class Codes: B33Y 50/02 for controlling or regulating additive manufacturing processes
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing

Abstract

A printing system is used to selectively print a layer material on a surface that is initially in a planar or two-dimensional shape. After the layer material is printed onto the surface, it is exposed to an amount of radiation from a radiation source and partially cured. Several layer materials may be placed on top of one another and are also partially cured. The flat surface may be reshaped into a nonplanar or three-dimensional shape, and the layer materials are again exposed to an amount of radiation and fully cured.

Claims

1. A method of making an article of footwear, comprising:

positioning a base material element in a planar configuration;

depositing a first layer material onto the base material element using a printing device;

partially curing the first layer material during a first radiation event, wherein the first radiation event includes a first radiation intensity based on a first layer material factor of the first layer material;

depositing a second layer material onto the first layer material using the printing device, the base material element, the first layer material and the second layer material forming a layer system;

partially curing the second layer material during a second radiation event, wherein the second radiation event includes a second radiation intensity based on a second layer material factor of the second layer material;

reshaping the base material element into a nonplanar configuration; and

fully curing the layer system during a third radiation event, wherein the third radiation event includes a third radiation intensity based on a third layer material factor of the layer system.

2. The method according to claim 1,

wherein the third radiation intensity is greater than the first radiation intensity and wherein the third radiation intensity is greater than the second radiation intensity.

3. The method according to claim 1, further comprising transforming the first layer material from a liquid state to a semi-solid state during the first radiation event.

4. The method according to claim 1, further comprising transforming the second layer material from a liquid state to a semi-solid state during the second radiation event.

5. The method according to claim 1, further comprising transforming the layer system from a semi-solid state to a solid state during the third radiation event.

6. The method according to claim 1, wherein:

the layer system includes a first design portion and a second design portion;

the first design portion has a first cross-sectional area;

the second design portion has a second cross-sectional area; and

the first cross-sectional area is different than the second cross-sectional area.

21. The method according to claim 1, wherein the first layer material factor is a thickness of the first layer material, the second layer material factor is a thickness of the second layer material and the third layer material factor is a thickness of the layer system.

22. The method according to claim 1, wherein the first layer material factor is a curvature level of the first layer material, the second layer material factor is a curvature level of the second layer material, and the third layer material factor is a curvature level of the layer system.

23. The method according to claim 1, wherein the first layer material factor is a flexibility of the first layer material, the second layer material factor is a flexibility of the second layer material, and the third layer material factor is a flexibility of the third layer material, wherein the flexibilities of the first layer material and the second layer material refer to desired flexibilities of the layer materials after partial curing.

7. A method of making an article of footwear, comprising:

positioning a base material element in a planar configuration;

depositing a first layer material onto the base material element using a printing device;

partially curing the first layer material during a first radiation event comprising a first radiation intensity based on a first layer material factor of the first layer material;

depositing a second layer material onto the first layer using the printing device, the base material element, the first layer material and the second layer material forming a selectively printed design feature;

partially curing the second layer material during a second radiation event comprising a second radiation intensity based on a second layer material factor of the second layer material;

reshaping the base material element into a nonplanar configuration;

fully curing the selectively printed design feature during a third radiation event comprising a third radiation intensity based on a third layer material factor of the selectively printed design feature;

wherein the selectively printed design feature includes a first design portion and a second design portion;

wherein the first design portion has a first cross-sectional area;

wherein the second design portion has a second cross-sectional area; and

wherein the first cross-sectional area is different than the second cross-sectional area.

8. The method according to claim 7,

wherein in the third radiation intensity is greater than the first radiation intensity and wherein the third radiation intensity is greater than the second radiation intensity.

9. The method according to claim 7, further comprising transforming the first layer material from a liquid state to a semi-solid state during the first radiation event.

10. The method according to claim 7, further comprising transforming the second layer material from a liquid state to a semi-solid state during the second radiation event.

11. The method according to claim 7, further comprising transforming the selectively printed design feature from a semi-solid state to a solid state during the third radiation event.

12. The method according to claim 7, further comprising using an ultraviolet light source to emit radiation with the first radiation intensity during the first radiation event, to emit radiation with the second radiation intensity during the second radiation event, and to emit radiation with the third radiation intensity during the third radiation event.

13. The method according to claim 7, wherein the first layer material is a first material including an acrylic resin and the second layer material is a second material including an acrylic resin.

14. A method of making an article of footwear, comprising:

positioning a base material element in a planar configuration;

depositing a first layer material onto the base material element using a printing device;

determining a first radiation intensity based on at least a first layer material factor of the first layer material;

partially curing the first layer material by emitting radiation having the first radiation intensity during a first radiation event;

depositing a second layer material onto the first layer material using the printing device, the base material element, the first layer material and the second layer material forming a layer system;

determining a second radiation intensity based on at least a second layer material factor of the second layer material;

partially curing the second layer material by emitting radiation having the second radiation intensity during a second radiation event;

determining a third radiation intensity based on at least a third layer material factor of the layer system;

reshaping the base material element into a nonplanar configuration; and

fully curing the layer system by emitting radiation having the third radiation intensity during a third radiation event.

15. The method according to claim 14, wherein the first layer material factor is a thickness of the first layer material, the second layer material factor is a thickness of the second layer material and the third layer material factor is a thickness of the layer system.

16. The method according to claim 14, wherein the first layer material factor is a curvature level of the first layer material, the second layer material factor is a curvature level of the second layer material, and the third layer material factor is a curvature level of the layer system.

17. The method according to claim 14, wherein the first layer material factor is a flexibility of the first layer material, the second layer material factor is a flexibility of the second layer material, and the third layer material factor is a flexibility of the third layer material, wherein the flexibilities of the first layer material and the second layer material refer to desired flexibilities of the layer materials after partial curing.

18. The method according to claim 14, wherein partially curing the first layer material further comprises transforming the first layer material from a liquid state to a semi-solid state.

19. The method according to claim 14, wherein partially curing the second layer material further comprises transforming the second layer material from a liquid state to a semi-solid state.

20. The method according to claim 14, wherein fully curing the layer system further comprises transforming the layer system from a semi-solid state to a solid state.