DSS-P.04.02 — Laminated Interlayer Pattern / Print (design)

Laminated glass can incorporate printed, patterned, or decorative interlayers (e.g., ceramic-ink prints on film, colored/gradient PVB/ionoplast, fabric meshes). These visuals reside within the laminate between plies and are intentional design attributes, not worked-surface defects on the exposed face. Product identity and baseline terminology follow ASTM C1172 (laminated architectural flat glass) and are listed normatively in VIS; the ISO 12543 laminated glass series is informative background.

• Uniform, repeatable artwork or tint that is fixed between plies and shows no perimeter/transition edge on the exposed surface.
• Apparent contrast varies with angle and raking light; a non-invasive reveal (clean & dry) does not change the printed appearance. Evaluate under VIS geometry.

Surface-catch class (MSRT):

• On the exposed face, the print is encapsulated; record SC-0 (none) with one light, non-marring pass per VIS §5.5 (supports classification only; do not abrade). Prefer a polymer stylus or visual-only on suspected coated faces.

Visual signature:

• Design-true edges and artwork seen through the ply; no worked transition ring on the exposed face; no chip flanks/pits typical of mechanical or hot-particle damage. Confirm by normal incidence and oblique sweep (~60°-120°) at 12 / 36 / 72 in with raking light.

Location / access:

• Log pane ID and surface numbering (#1-#4 for IGU cavity-bounding faces; laminate-internal for interlayer-adjacent faces). Acceptance in VIS pertains to the exposed surface only.

• Design/processing feature - not surface damage. If the observation is uniform printed interlayer with SC-0 on the exposed face and no worked perimeter, record “Design Feature - Not Surface Damage (outside CAT-1...CAT-4).”
• Escalate when:
• A local worked region exists on the exposed face (visible transition edge/ring, directional patterning, chip flanks/pits) → classify under M-/Ch- families by morphology and assign CAT per VIS.
• The cue is between panes or within the laminate (i.e., laminate-internal cue) such that it’s inaccessible → CAT-5 by location/condition; document and refer per project protocol.

Printed interlayers are encapsulated graphics, not face-side relief; the exposed face registers SC-0. Numeric “depth” is not applicable for design prints; any worked area on the exposed face remains appearance-based under VIS acceptance (no transition edge, no directional patterning at required views).

• vs. Interlayer defects (A.02 family): Bubbles/stringers/edge haze are defect morphologies within the laminate (not design prints) and may trigger CAT-5 by inaccessibility. Design prints are continuous and intentional.
• vs. Coating anomalies (Co.01/Co.03): Coating rubs/patchiness are worked-surface anomalies on the exposed face and are disallowed at acceptance when present on the worked surface; design prints are behind the face.
• vs. Paint/film overspray (R.02/R.01): Overspray/adhesive films are on the exposed face and can change with reveal; printed interlayers do not change after cleaning.

• Photo set (VIS): 12 / 36 / 72 in, normal + oblique, include raking macros showing artwork through the ply with no face-side perimeter, plus context frames confirming pattern continuity. Record lighting/time and reveal status.
• MSRT result: Record SC class on the exposed face (one pass, non-marring). Use polymer stylus or visual-only near coatings.
• Forms: Pane ID; surface numbering; worked surface Y/N; functional coating on worked surface? (Y/N/Unknown); geometry checklist; photos attached.
• Acceptance split: VIS governs post-restoration appearance on the exposed surface; product design prints in the laminate are outside VIS acceptance unless a worked patch exists on the face.

Attempting to “blend” the exposed face to “mute” a laminate print introduces a worked region with a visible transition edge, which VIS disallows at acceptance. Do not modify face geometry to change encapsulated artwork.

• P.04.02 Laminated Interlayer Pattern/Print (Design Feature) - Uniform printed/tinted interlayer visible through the ply; MSRT on exposed face = SC-0 (no relief). No transition edge and no chip-flank/pit morphology on the face. Logged as design/processing feature - not surface damage under VIS-DA. If a worked patch is present on the face, classify by morphology and assign CAT; if laminate-internal/inaccessible, record CAT-5 and refer per protocol.