"""
Knowledge about quality control procedures in packaging production.
"""

title = "Quality Control Procedures"

content = """
Quality control ensures that packaging meets customer specifications and
performs reliably in the supply chain. Systematic procedures prevent defects
from reaching customers and identify process improvement opportunities.

**Incoming Material Inspection:** Substrates, inks, coatings, and adhesives
require verification before production. Inspection checks: basis weight and
caliper against specifications; ECT or burst strength for corrugated; color
and viscosity for inks; adhesion properties for tapes and glues. Rejecting
non-conforming materials prevents downstream quality failures.

**In-Process Monitoring:** Inline inspection systems use cameras and sensors
to detect defects during production. Color monitoring verifies conformance
to approved proofs. Barcode verification ensures scannability. Print defect
detection identifies voids, hickeys, and contamination. Structural inspection
verifies die cutting and folding integrity. Alert thresholds trigger operator
intervention when parameters drift.

**Statistical Sampling:** Acceptance sampling plans (ANSI/ASQ Z1.4) define
sample sizes and acceptance criteria based on lot sizes and quality history.
AQL (Acceptable Quality Level) of 1.0 or 2.5 is typical for packaging.
Inspectors evaluate samples for visual defects, dimensional conformance,
and functional performance (folding, gluing, opening).

**Laboratory Testing:** Destructive testing validates performance properties.
Box compression testing (ASTM D642) measures stacking strength. Drop testing
(ASTM D5276) simulates handling abuse. Vibration testing (ISTA procedures)
evaluates shipping durability. Moisture and temperature conditioning verifies
stability under storage conditions.

**Documentation and Traceability:** Inspection records link production lots
to raw material batches and quality measurements. Non-conformance reports
document defects, root causes, and corrective actions. Certificates of
analysis accompany regulated products (food contact, pharmaceuticals).
This documentation enables rapid response to quality complaints.
"""

version = "0.0.1"
