IP Library Granted Patent US 11,384,462
Granted Patent B2
US 11,384,462 · App. 16/794,185 · Granted Jul 12, 2022

Treating base templates with anti-ozone agent before storage for laser finishing

Inventors: Sachith Devendra Samarasinghe (Ragama, LK); Chatura Atukorala (Veyangoda, LK); James Barton Sights (San Francisco, CA); David Love (Tiburon, CA); Elizabeth O'Neill (Tiburon, CA); Jeff Zens (Emeryville, CA); Benjamin Bell (San Francisco, CA); Jennifer Schultz (Cambridge, MA); Christopher Schultz (Cambridge, MA); Debdulal Mahanty (Fremont, CA)
Assignee: Levi Strauss & Co.
D06B3/10D06B9/04D06M10/005D06M10/04D06M10/08D06P5/04D06P1/228
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Quick Facts
Patent No.
US 11,384,462
App. No.
16/794,185
Granted
Jul 12, 2022
Kind
B2
Abstract

Indigo-dyed garments are treated with an anti-ozone agent to prevent ozone-related degradation of the garments before laser finishing. Without treatment, the garments can exhibit color loss (e.g., color change or fading) from exposure to ozone in the atmosphere. The indigo-dyed garments with anti-ozone treatment can serve as base templates in a laser finishing process flow. The anti-ozone treatment of the base templates can include a rinse including an ascorbic acid or vitamin C constituent during a base preparation process. Then quantities of these base templates can manufactured and stored for periods of time without exhibiting ozone-related degradation effects.

Claims (76)

1. A method comprising:

creating a garment template comprising

assembling fabric panels of a woven first material into an assembled garment, wherein the first material comprises a warp yarn comprising indigo-dyed cotton yarn, and the fabric panels are sewn together using thread,

rinsing the assembled garment in about 1.5 to about 2.5 grams per liter of ascorbic acid, and

spin drying the rinsed assembled garment such that the ascorbic acid remains in the assembled garment;

storing the dried rinsed assembled garment as the garment template in a template inventory;

using a laser machine to form a finishing pattern on the garment template by laser, wherein the laser machine marks a surface of the garment according to a digital file input to the laser machine; and

using a digital design tool to generate the digital file input used by the laser machine, wherein the digital design tool generates a photorealistic visualization of a finishing pattern of a garment after a postlaser wash on a screen of a design computer and allows editing of the finishing pattern, and the digital design tool executes on the design computer that is separate from the laser machine,

the editing permitted by the digital design tool comprises selecting a combination of a garment template and a wear pattern, and saving the combination as the finishing pattern, and

a photorealistic visualization of the combination comprises displaying on the screen of the design computer the garment template and wear pattern as a garment of the combination would appear after postlaser wash.

2. The method of claim 1 wherein the garment template comprises

before the rinsing the assembled garment, washing the assembled garment in a solution comprising water, enzyme, and pumice stone.

3. The method of claim 1 wherein the garment template comprises

before the rinsing the assembled garment, washing the assembled garment in a solution comprising water and bleach.

4. The method of claim 1 wherein the garment template comprises

before the rinsing the assembled garment, washing the assembled garment in a solution comprising water and a tint dye.

5. The method of claim 1 wherein the rinsing the assembled garment comprises a softener.

6. The method of claim 1 wherein the garment template is stored in a template inventory at a first facility, which also houses the laser machine.

7. The method of claim 1 wherein the rinsing of the assembled garment and the drying the rinsed assembled garment are performed at a first facility,

the garment template is stored in a template inventory at a second facility, which also houses the laser machine,

the first facility and second facility are at different geographic locations.

8. The method of claim 1 wherein the editing permitted by the digital design tool comprises moving the wear pattern relative to the garment template.

9. The method of claim 1 wherein the design computer is a tablet computer comprising a touch screen display.

10. The method of claim 1 wherein the photorealistic visualization comprises a three-dimensional rendering.

11. The method of claim 1 wherein the rinsing the assembled garment comprises

rinsing the assembled garment in a solution consisting essentially of water and about 1.5 to about 2.5 grams per liter of ascorbic acid.

12. The method of claim 1 wherein the rinsing the assembled garment comprises

rinsing the assembled garment in a solution consisting of water and about 1.5 to about 2.5 grams per liter of ascorbic acid.

13. A method comprising:

creating a garment template comprising

assembling fabric panels of a woven first material into an assembled garment, wherein the first material comprises a warp yarn comprising indigo-dyed cotton yarn, and the fabric panels are sewn together using thread,

rinsing the assembled garment in an anti-ozone agent, and

spin drying the rinsed assembled garment such that the anti-ozone agent remains in the assembled garment;

storing the dried rinsed assembled garment as the garment template in a template inventory, whereby the anti-ozone agent prevents yellowing due to exposure to ozone;

using a laser machine to form a finishing pattern on the garment template by laser, wherein the laser machine marks a surface of the garment pattern a pattern according to a digital file input to the laser machine; and

using a digital design tool to generate the digital file input used by the laser machine, wherein the digital design tool generates a photorealistic visualization of a finishing pattern of a garment after a postlaser wash on a screen of a design computer and allows editing of the finishing pattern, and the digital design tool executes on the design computer that is separate from the laser machine,

the editing permitted by the digital design tool comprises selecting a combination of a garment template and a wear pattern, and saving the combination as the finishing pattern, and

a photorealistic visualization of the combination comprises displaying on the screen of the design computer the garment template and wear pattern as a garment of the combination would appear after postlaser wash.

14. The method of claim 13 wherein the rinsing the assembled garment in the anti-ozone agent comprises

rinsing in a solution consisting essentially of water and about 2.0 to about 2.5 grams per liter of ascorbic acid.

15. The method of claim 13 wherein the rinsing the assembled garment in the anti-ozone agent comprises

rinsing in a solution of water and about 2.5 to about 3.0 grams per liter of sodium ascorbate.

16. The method of claim 13 wherein the rinsing the assembled garment in the anti-ozone agent comprises

rinsing in a solution of water and about 3.0 to about 3.5 grams per liter of sodium ascorbate.

17. The method of claim 13 wherein the rinsing the assembled garment in the anti-ozone agent comprises

rinsing in a solution of water and about 2.0 to about 4.0 grams per liter of sodium ascorbate.

18. The method of claim 13 wherein the rinsing the assembled garment in the anti-ozone agent comprises

rinsing in a solution of water and about 1.5 to about 2.5 grams per liter of sodium ascorbate.

19. The method of claim 13 wherein the creating a garment template comprises

before the rinsing the assembled garment in the anti-ozone agent, washing the assembled garment in a solution comprising water, enzyme, and pumice stone.

20. The method of claim 13 wherein the garment template comprises

before the rinsing the assembled garment in the anti-ozone agent, washing the assembled garment in a solution comprising water and bleach.

21. The method of claim 13 wherein the garment template comprises

before the rinsing the assembled garment in the anti-ozone agent, washing the assembled garment in a solution comprising water and a tint dye.

22. The method of claim 13 wherein the garment template is stored in a template inventory at a first facility, which also houses the laser machine.

23. The method of claim 13 wherein the washing of the assembled garment and the drying the washed assembled garment are performed at a first facility,

the garment template is stored in a template inventory at a second facility, which also houses the laser machine,

the first facility and second facility are at different geographic locations.

24. The method of claim 13 wherein the anti-ozone agent comprises sodium ascorbate.

25. The method of claim 13 wherein the anti-ozone agent comprises at least one of sodium bisulfate or ethylene diamine.

26. The method of claim 13 wherein the photorealistic visualization generated by the digital design tool comprises a three-dimensional rendering.

27. The method of claim 13 wherein the design computer is a tablet computer comprising a touch screen display.

28. The method of claim 13 wherein the photorealistic visualization comprises a three-dimensional rendering.

29. A method comprising:

creating a garment template comprising

assembling fabric panels of a woven first material into an assembled garment, wherein the first material comprises a warp yarn comprising indigo-dyed cotton yarn, and the fabric panels are sewn together using thread,

rinsing the assembled garment in an anti-ozone agent, wherein the rinsing the assembled garment in an anti-ozone agent comprises

rinsing the assembled garment in a solution consisting essentially of water and about 1.5 to about 2.0 grams per liter of sodium ascorbate, and

spin drying the rinsed assembled garment such that the anti-ozone agent remains in the assembled garment;

storing the dried rinsed assembled garment as the garment template in a template inventory, whereby the anti-ozone agent prevents yellowing due to exposure to ozone;

using a laser machine to form a finishing pattern on the garment template by laser, wherein the laser machine marks a surface of the garment according to a digital file input to the laser machine;

using a digital design tool to generate the digital file input used by the laser machine, wherein the digital design tool generates a photorealistic visualization of a finishing pattern of a garment after a postlaser wash on a screen of a design computer and allows editing of the finishing pattern, and the digital design tool executes on the design computer that is separate from the laser machine,

the editing permitted by the digital design tool comprises selecting a first combination of a garment template and a first wear pattern, and saving the first combination as a first finishing pattern, and

a photorealistic visualization of the first combination comprises displaying on a computer screen the garment template and the first wear pattern as a garment of a first combination would appear after postlaser wash,

the editing permitted by the digital design tool comprises selecting a second combination of the garment template, a first wear pattern, and a first tint color, and saving a second combination as a second finishing pattern, and

a photorealistic visualization of the second combination comprises displaying on a computer screen the garment template and the first wear pattern along with the first tint color as a garment of the second combination would appear after postlaser wash.

Assignments (4)
RELEASE OF SECURITY INTEREST AT REEL/FRAME 069335/0647 Recorded Jun 9, 2025
From: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
To: LEVI STRAUSS & CO.
Reel/Frame 071512/0857 →
SUPPLEMENTAL SECURITY AGREEMENT Recorded Nov 11, 2024
From: LEVI STRAUSS & CO.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 069335/0647 →
SECURITY INTEREST Recorded Jan 10, 2023
From: LEVI STRAUSS & CO.
To: JP MORGAN CHASE BANK, N.A.
Reel/Frame 062334/0268 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 6, 2022
From: SAMARASINGHE, SACHITH DEVENDRA; ATUKORALA, CHATURA; SIGHTS, JAMES BARTON; O'NEILL, ELIZABETH; BELL, BENJAMIN; SCHULTZ, JENNIFER; SCHULTZ, CHRISTOPHER; MAHANTY, DEBDULAL
To: LEVI STRAUSS & CO.
Reel/Frame 059864/0578 →
Continuity (2)
Provisional Application 62806713 · Feb 15, 2019
Related Publication 20200263354A1 · Aug 20, 2020