Here’s the reality:
✓ Class 4 Lasers are the highest risk category and cannot be safely operated without properly certified containment
✓ Most facilities do NOT possess the required local laser permits or SOP’s required by OSHA and the FDA
✓ True compliance requires a laser safety officer (LSO), PPE Plans, document Hazard Analysis and lockout SOP’s. Some municipalities, counties and states require additional permits.
✓ Insurance carriers are beginning to deny coverage for non-enclosed Class 4 laser use
But beyond the regulatory problem there is an anilox problem:
To safely and effectively clean an anilox with a laser, you must guarantee perfect rotational movement and synchronized motion during the process. A flexo press or corrugated flexo folder gluer is not a precision motion platform for laser cleaning. Misalignment, backlash, or vibration, even slight vibration risks:
✓ Incomplete cleaning
✓ Focusing energy in certain areas and not others
✓ Catastrophic roll damage
✓ Laser energy misfire outside of the intended path
Regulatory Framework: Laser safety is overseen by bodies including the CDRH (product compliance), ANSI (guidelines, specifically Z136.1-2014), and OSHA (enforcement).
Required Documentation from Service Providers: To ensure safety, facilities must demand the following documents in advance from the cleaning service provider:
1. A Workplace Laser Safety Audit (per ANSI Z136.1-2014) signed by a Laser Safety Officer (LSO).
2. A Laser Hazard Analysis (conducted by a 3rd Party LSO) to determine the specific NOHD.
3. Standard Operating Procedures (SOPs) outlining the temporary control area setup, signage, the LSO's contact information, and protocols in case of injury.
4. Documentation showing effective capture of ablated ink particulates.