Code of Maryland Regulations › Title 26 - DEPARTMENT OF ENVIRONMENT › Part 2 - SUBTITLES 08-12 › Subtitle 11 - AIR QUALITY › Chapter 26.11.19 - Volatile Organic Compounds from Specific Processes › Section 26.11.19.18 - Control of Volatile Organic Compound Emissions from Screen Printing and Digital Imaging

Current through Register Vol. 51, No. 14, July 12, 2024
A. In this
				  regulation, the following terms have the meanings indicated:
(1) "Acid/etch resist ink" means a material
				  or compound applied to portions of a product, usually in a pattern, before
				  etching, to protect the covered portions from the action of the chemical
				  solution that removes the surface of the product being etched.
(2) "Anoprint ink" means a dye or compound
				  that is screen printed on unsealed anodized aluminum before the process of
				  sealing the anodic coating, thus trapping the dye or compound in the anodic
				  coating.
(3) "Back-up coating"
				  means a coating applied to the nondecorated side of a plywood sign.
(4) Clear Coating.
(a) "Clear coating" means a transparent
				  coating usually applied over a pigmented or colored coat to give improved gloss
				  or protection to the colored coat.
(b) "Clear coating" does not mean overprint
				  varnish that is used in the cosmetic industry and that is subject to FDA
				  formulation requirements.
(5) "Conductive ink" means an ink for the
				  screen printing of electronic circuits or other conductive patterns that permit
				  electric current to flow through the printed line or pattern.
(5-1) "Digital imaging" means a printer that uses a
					 computer-driven machine to transfer an electronically stored image onto the
					 substrate through the use of inks, toners, or other similar color graphic
					 materials. Application methods include ink jet, electrostatic, and spray jet
					 technologies.
(6)
				  "Electroluminescent ink" means a transparent conductive coating, phosphor,
				  opaque conductive, or similar compound that is screen printed with the purpose
				  of converting an electrical current directly into light.
(7) "Exterior illuminated sign" means a
				  plastic sign that can be illuminated for its visibility at night.
(8) "Haze removal" means the final cleaning
				  stage or process to remove ink residue from a used screen.
(9) "Ink removal" means removal of excess ink
				  from a used screen.
(10) "Maximum
				  VOC content" means the maximum content of volatile organic compounds less
				  exempt solvents and water.
(10-1) "Overprint varnish" means a FDA-regulated coating
					 that is used to prevent lipstick from adhering to the plastic film on a sample
					 card sold to retail stores.
(11) "Plastic card manufacturing
				  installation" means screen printing, lithographic printing, drying ovens,
				  adhesive application, and laminating equipment used to produce a credit card or
				  similar plastic card product.
(12)
				  "Plywood sign coating" means a coating applied to plywood sheeting in the
				  preparation of exterior signs.
(13)
				  "Screen printing" means a printing method in which ink, clear coating, or
				  adhesive is distributed through a tightly stretched fabric to which a refined
				  form of stencil has been applied. The stencil and mesh openings determine the
				  form and dimensions of the imprint.
(14) "Screen printing installation" means
				  equipment including printing application equipment, flash-off areas, and dryers
				  used to perform screen printing.
(15) "Screen reclamation" means removal of
				  stencil or ghost image from a used screen.
(16) "Specialty inks" means acid/etch resist,
				  anoprint, conductive, and electroluminescent inks.
(17) "Untreated sign paper" means a paper
				  used in screen printing to prepare a temporary, light-weight sign or poster
				  such as grocery store signs that are sensitive to water and water-based
				  inks.