IP Library Granted Patent US 12,643,319
Granted Patent B2
US 12,643,319 · App. 18/664,700 · Granted Jun 2, 2026

Maintaining raw flexible plate integrity using pre-hardened flexible plate regions

Inventors: Lewis B. Jennings (Elkton, MD); Peter J. Fronczkiewicz (Lake Wylie, SC)
Assignee: SP HOLDING II ET, INC.
B41F5/24B41F1/38
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,643,319
App. No.
18/664,700
Granted
Jun 2, 2026
Kind
B2
Abstract

Embodiments of the invention are directed to a component of a flexographic printing system. The component includes an electromagnetic energy source operable to electronically couple to a controller. The electromagnetic energy source is further operable to apply a pre-hardening process to a non-print region of a raw flexible plate. The pre-hardening process results in a pre-hardened region of the non-print region of the raw flexible plate. The pre-hardened region of the non-print region of the raw flexible plate counters a clamping force applied to the non-print region of the raw flexible plate.

Claims (47)

1 . A component of a flexographic printing system, the component comprising:

an electromagnetic energy source configured to electronically couple to a controller;

wherein the electromagnetic energy source is further configured to apply a pre-hardening process to at least one selected regions of a raw flexible plate, the raw flexible plate comprising one or more print regions and one or more non-print regions;

wherein the one or more print regions comprise one or more non-sacrificial regions of the raw flexible plate reserved for forming, through downstream plate processing, a hardened flexible plate;

wherein the one or more non-print regions further comprise one or more sacrificial regions of the raw flexible plate not reserved for forming, through the downstream plate processing, the hardened flexible plate;

wherein the one or more sacrificial regions comprise a first non-print region;

wherein the electromagnetic energy source is further configured to apply the pre-hardening process to the first non-print region;

wherein applying the pre-hardening process to the first non-print region results in a pre-hardened region of the first non-print region of the raw flexible plate; and

wherein the pre-hardened region of the first non-print region of the raw flexible plate counters a clamping force applied to the first non-print region of the raw flexible plate during the pre-hardening process.

2 . The component of claim 1 , wherein the pre-hardening process converts at least a portion of the first non-print region to a pre-hardened first non-print region.

3 . The component of claim 2 , wherein the pre-hardening process converts the at least a portion of the first non-print region to the pre-hardened first non-print region without substantially changing the one or more print regions of the raw flexible plate.

4 . The component of claim 2 , wherein the pre-hardened first non-print region comprises an exposed edge sidewall.

5 . The component of claim 4 , wherein the clamping force is insufficient to cause the exposed edge sidewall of the pre-hardened first non-print region to substantially bulge.

6 . The component of claim 2 , wherein the one or more print regions comprises a photopolymer material.

7 . The component of claim 6 , wherein the one or more non-print regions comprise the photopolymer material.

8 . The component of claim 7 , wherein the pre-hardening process comprises a curing process.

9 . The component of claim 8 , wherein the curing process comprises an ultraviolet (UV) electromagnetic radiation curing process.

10 . A flexible plate comprising:

one or more print regions;

one or more non-print regions comprising a first non-print region having an exposed edge sidewall;

wherein the one or more print regions comprise one or more non-sacrificial regions of the flexible plate reserved for forming, through downstream plate processing, a hardened flexible plate;

wherein the one or more non-print regions further comprise one or more sacrificial regions of the flexible plate not reserved for forming, through the downstream plate processing, the hardened flexible plate; and

an electromagnetic energy source configured to, responsive to instructions from a controller, convert at least a portion of the first non-print region to a pre-hardened first non-print region by applying a pre-hardening process to the exposed edge sidewall.

11 . The flexible plate of claim 10 , wherein:

the one or more print regions comprise a photopolymer material; and

the one or more non-print regions comprise the photopolymer material.

12 . The flexible plate of claim 11 , wherein:

the electromagnetic energy comprises ultraviolet (UV) light; and

the pre-hardening process comprises activating the UV light energy source.

13 . A method of forming a component of a flexographic printing system, the method comprising:

providing an electromagnetic energy source configured to electronically couple to a controller;

wherein the electromagnetic energy source is further configured to apply a pre-hardening process to at least one selected regions of a raw flexible plate, the raw flexible plate comprising one or more print regions and one or more non-print regions;

wherein the one or more print regions comprise one or more non-sacrificial regions of the raw flexible plate reserved for forming, through downstream plate processing, a hardened flexible plate;

wherein the one or more non-print regions further comprise one or more sacrificial regions of the raw flexible plate not reserved for forming, through the downstream plate processing, the hardened flexible plate;

wherein the one or more sacrificial regions comprise a first non-print region;

wherein the electromagnetic energy source is further configured to apply the pre-hardening process to the first non-print region;

wherein applying the pre-hardening process to the first non-print region results in a pre-hardened region of the first non-print region of the raw flexible plate; and

wherein the pre-hardened region of the first non-print region of the raw flexible plate counters a clamping force applied to the first non-print region of the raw flexible plate during the pre-hardening process.

14 . The method of claim 13 , wherein the pre-hardening process converts at least a portion of the first non-print region to a pre-hardened first non-print region.

15 . The method of claim 14 , wherein the pre-hardening process converts the at least a portion of the first non-print region to the pre-hardened first non-print region without substantially changing the one or more print regions of the raw flexible plate.

16 . The method of claim 14 , wherein the pre-hardened first non-print region comprises an exposed edge sidewall.

17 . The method of claim 16 , wherein the clamping force is insufficient to cause the exposed edge sidewall of the pre-hardened first non-print region to substantially bulge.

18 . The method of claim 17 , wherein:

the one or more print regions comprise a photopolymer material; and

the one or more non-print regions comprise the photopolymer material.

19 . The method of claim 18 , wherein the pre-hardening process comprises a curing process.

20 . The method of claim 19 , wherein the curing process comprises an ultraviolet (UV) electromagnetic radiation curing process.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 31, 2026
From: DUPONT ELECTRONICS, INC.
To: SP HOLDING II ET, INC.
Reel/Frame 075304/0399 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 30, 2026
From: DUPONT ELECTRONICS, INC.
To: SP HOLDING II ET, INC.
Reel/Frame 075319/0463 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2024
From: JENNINGS, LEWIS B.; FRONCZKIEWICZ, PETER J.
To: DUPONT ELECTRONICS, INC.
Reel/Frame 067424/0504 →
Continuity (1)
Related Publication 20250353291A1 · Nov 20, 2025
References Cited (8)
US 20130340637A1 · Wolterink et al. · 2013 [cited by applicant]
US 20140069581A1 · Ogawa · 2014 [cited by examiner]
US 20200348546A1 · Chen · 2020 [cited by examiner]
US 20200402963A1 · Lin · 2020 [cited by examiner]
US 20230350298A1 · Fohrenkamm · 2023 [cited by examiner]
US 20230367222A1 · Lenssens et al. · 2023 [cited by applicant]
JP 2022119359A · 2022 [cited by applicant]
International Search Report and Written Opinion for the corresponding International Application No. PCT/US2025/028825, International Filing Date: May 12, 2025, Date of Mailing: Oct. 10, 2025; 10 pages. [cited by applicant]