This element covers the practical skills and theoretical knowledge required to operate and control machinery for decorating ceramic ware, such as screen pr
Topic Synopsis
This element covers the practical skills and theoretical knowledge required to operate and control machinery for decorating ceramic ware, such as screen printing, pad printing, or automated transfer application. Learners must demonstrate competence in setting up and adjusting equipment, monitoring decoration quality against standards, and troubleshooting common defects to ensure consistent, high-volume production in a manufacturing environment.
Key Concepts & Core Principles
- Raw material preparation: Understanding the properties of clays, glazes, and other materials, and how to mix and condition them for consistent production.
- Forming techniques: Knowledge of methods such as slip casting, jiggering, and pressing to shape ceramic products accurately.
- Drying and firing: Controlling moisture removal and kiln firing cycles to prevent defects and achieve desired material properties.
- Quality control: Inspecting products for defects like cracks, warping, or glaze faults, and understanding how to adjust processes to maintain standards.
Exam Tips & Revision Strategies
- During observation, articulate your decision-making process aloud—explain why you select specific machine parameters and how you confirm decoration compliance against master samples.
- Compile a detailed log of machine maintenance and fault-finding activities, cross-referenced to product quality records, to strengthen your portfolio evidence for assessment criteria related to problem-solving.
Common Misconceptions & Mistakes to Avoid
- Failing to verify substrate cleanliness and surface preparation before decoration, leading to adhesion failures or pinholes.
- Ignoring environmental factors such as temperature and humidity that affect ink/glaze viscosity and drying times.
- Neglecting to document machine settings and adjustments, causing inconsistency between production runs and loss of traceability.
- Misdiagnosing defects—e.g. confusing screen clogging with incorrect squeegee pressure—leading to unnecessary downtime.
Examiner Marking Points
- Award credit for demonstrating accurate interpretation of work orders and job specifications, including pattern placement, colour registration, and decoration type.
- Evidence must show correct machine set-up and calibration (e.g. squeegee angle, pressure, speed) to achieve specified decoration quality and repeatability.
- Performance evidence must include in-process inspection and adjustment, with clear justification of actions taken to rectify deviations from standard samples.
- Knowledge evidence must detail safe machine operation, including pre-start checks, emergency stop procedures, and correct handling of decorating materials (inks, glazes, transfers).