NTISthis.com

Evidence Guide: ICPSCP339 - Prepare stencil using direct projection method

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

ICPSCP339 - Prepare stencil using direct projection method

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare work area

  1. Work area is made clean and functional prior to commencement of work
  2. Equipment is inspected to ensure it is functional and, where necessary, appropriate remedial action is taken prior to commencement of work
  3. Chemicals are prepared, if necessary, according to work health and safety (WHS) requirements and manufacturer or supplier specifications
  4. Appropriate coating trough (or troughs for automatic coaters) is selected, ensuring it is free of nicks and burrs
Work area is made clean and functional prior to commencement of work

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Equipment is inspected to ensure it is functional and, where necessary, appropriate remedial action is taken prior to commencement of work

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Chemicals are prepared, if necessary, according to work health and safety (WHS) requirements and manufacturer or supplier specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Appropriate coating trough (or troughs for automatic coaters) is selected, ensuring it is free of nicks and burrs

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare screen

  1. Screen is selected according to job specifications
  2. Chemicals are applied and removed according to WHS requirements and manufacturer or supplier specifications
Screen is selected according to job specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Chemicals are applied and removed according to WHS requirements and manufacturer or supplier specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select emulsion

  1. Emulsion is selected according to requirements for ink type, print resolution, substrate, mesh type and machine type with minimisation of waste
  2. Emulsion is checked for expiry date and appropriate action taken
  3. Emulsion is prepared according to WHS requirements, and manufacturer or supplier specifications
  4. Emulsion is used and dried according to manufacturer or supplier specifications
Emulsion is selected according to requirements for ink type, print resolution, substrate, mesh type and machine type with minimisation of waste

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Emulsion is checked for expiry date and appropriate action taken

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Emulsion is prepared according to WHS requirements, and manufacturer or supplier specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Emulsion is used and dried according to manufacturer or supplier specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Process material

  1. Coated screen is positioned on projection frame holder according to manufacturer or supplier specifications
  2. Projection light source equipment is positioned according to manufacturer or supplier specifications
  3. Positive is positioned into projection light source which is then set to desired enlargement according to manufacturer or supplier specifications
  4. Exposed screen is removed from positioning frame according to WHS requirements and manufacturer or supplier specifications
  5. Exposed screen is washed out according to WHS requirements and manufacturer or supplier specifications
  6. Processed stencil or screen is inspected for processing flaws
Coated screen is positioned on projection frame holder according to manufacturer or supplier specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Projection light source equipment is positioned according to manufacturer or supplier specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Positive is positioned into projection light source which is then set to desired enlargement according to manufacturer or supplier specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Exposed screen is removed from positioning frame according to WHS requirements and manufacturer or supplier specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Exposed screen is washed out according to WHS requirements and manufacturer or supplier specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Processed stencil or screen is inspected for processing flaws

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Dry stencil

  1. Processed stencil is dried according to manufacturer or supplier specifications
  2. Backing sheet is carefully removed and stencil checked for full adhesion
Processed stencil is dried according to manufacturer or supplier specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Backing sheet is carefully removed and stencil checked for full adhesion

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Block out screen

  1. Non-image areas of prepared screen are blocked out with filler suitable for ink type and according to job specifications
  2. Stencil is inspected for flaws, scum and orientation
  3. Pinholes are spotted out with suitable filler and taped according to ink type and job specifications
Non-image areas of prepared screen are blocked out with filler suitable for ink type and according to job specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Stencil is inspected for flaws, scum and orientation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pinholes are spotted out with suitable filler and taped according to ink type and job specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Store screen

  1. Prepared screen is labelled according to enterprise specifications
  2. Prepared screen is stored in clean, dry environment according to manufacturer or supplier specifications
Prepared screen is labelled according to enterprise specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepared screen is stored in clean, dry environment according to manufacturer or supplier specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

ELEMENT

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1 Prepare work area

1.1 Work area is made clean and functional prior to commencement of work

1.2 Equipment is inspected to ensure it is functional and, where necessary, appropriate remedial action is taken prior to commencement of work

1.3 Chemicals are prepared, if necessary, according to work health and safety (WHS) requirements and manufacturer or supplier specifications

1.4 Appropriate coating trough (or troughs for automatic coaters) is selected, ensuring it is free of nicks and burrs

2 Prepare screen

2.1 Screen is selected according to job specifications

2.2 Chemicals are applied and removed according to WHS requirements and manufacturer or supplier specifications

3 Select emulsion

3.1 Emulsion is selected according to requirements for ink type, print resolution, substrate, mesh type and machine type with minimisation of waste

3.2 Emulsion is checked for expiry date and appropriate action taken

3.3 Emulsion is prepared according to WHS requirements, and manufacturer or supplier specifications

3.4 Emulsion is used and dried according to manufacturer or supplier specifications

4 Process material

4.1 Coated screen is positioned on projection frame holder according to manufacturer or supplier specifications

4.2 Projection light source equipment is positioned according to manufacturer or supplier specifications

4.3 Positive is positioned into projection light source which is then set to desired enlargement according to manufacturer or supplier specifications

4.4 Exposed screen is removed from positioning frame according to WHS requirements and manufacturer or supplier specifications

4.5 Exposed screen is washed out according to WHS requirements and manufacturer or supplier specifications

4.6 Processed stencil or screen is inspected for processing flaws

5 Dry stencil

5.1 Processed stencil is dried according to manufacturer or supplier specifications

5.2 Backing sheet is carefully removed and stencil checked for full adhesion

6 Block out screen

6.1 Non-image areas of prepared screen are blocked out with filler suitable for ink type and according to job specifications

6.2 Stencil is inspected for flaws, scum and orientation

6.3 Pinholes are spotted out with suitable filler and taped according to ink type and job specifications

7 Store screen

7.1 Prepared screen is labelled according to enterprise specifications

7.2 Prepared screen is stored in clean, dry environment according to manufacturer or supplier specifications

Required Skills and Knowledge

ELEMENT

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1 Prepare work area

1.1 Work area is made clean and functional prior to commencement of work

1.2 Equipment is inspected to ensure it is functional and, where necessary, appropriate remedial action is taken prior to commencement of work

1.3 Chemicals are prepared, if necessary, according to work health and safety (WHS) requirements and manufacturer or supplier specifications

1.4 Appropriate coating trough (or troughs for automatic coaters) is selected, ensuring it is free of nicks and burrs

2 Prepare screen

2.1 Screen is selected according to job specifications

2.2 Chemicals are applied and removed according to WHS requirements and manufacturer or supplier specifications

3 Select emulsion

3.1 Emulsion is selected according to requirements for ink type, print resolution, substrate, mesh type and machine type with minimisation of waste

3.2 Emulsion is checked for expiry date and appropriate action taken

3.3 Emulsion is prepared according to WHS requirements, and manufacturer or supplier specifications

3.4 Emulsion is used and dried according to manufacturer or supplier specifications

4 Process material

4.1 Coated screen is positioned on projection frame holder according to manufacturer or supplier specifications

4.2 Projection light source equipment is positioned according to manufacturer or supplier specifications

4.3 Positive is positioned into projection light source which is then set to desired enlargement according to manufacturer or supplier specifications

4.4 Exposed screen is removed from positioning frame according to WHS requirements and manufacturer or supplier specifications

4.5 Exposed screen is washed out according to WHS requirements and manufacturer or supplier specifications

4.6 Processed stencil or screen is inspected for processing flaws

5 Dry stencil

5.1 Processed stencil is dried according to manufacturer or supplier specifications

5.2 Backing sheet is carefully removed and stencil checked for full adhesion

6 Block out screen

6.1 Non-image areas of prepared screen are blocked out with filler suitable for ink type and according to job specifications

6.2 Stencil is inspected for flaws, scum and orientation

6.3 Pinholes are spotted out with suitable filler and taped according to ink type and job specifications

7 Store screen

7.1 Prepared screen is labelled according to enterprise specifications

7.2 Prepared screen is stored in clean, dry environment according to manufacturer or supplier specifications

Evidence of the ability to:

safely prepare TWO different screens using the direct projection method according to all job, manufacturer, enterprise and work health and safety (WHS) requirements.

Note: If a specific volume or frequency is not stated, then evidence must be provided at least once.

To complete the unit requirements safely and effectively, the individual must:

identify the influence that mesh count has on final printed product

explain the importance of correctly tensioned screen and describe the tension that is required on screens of various mesh count or grades

describe the degreasing or cleaning techniques that are employed prior to coating the screen

summarise the information contained in the material safety data sheet (MSDS) about emulsion

discuss the pollution and environmental issues that need to be considered when working with emulsions

identify the maintenance that is required on the direct projection camera

outline the importance of working in a safelight area when using the direct projection method

describe the kinds of high sensitivity emulsions that are available and explain their characteristics, lifespans and areas of use, including the preparation method for the emulsion being used

identify the influence that length of run and ink being used have on the coating technique

identify the number of coats of emulsion and the best method of coating the screen, as well as the best position (horizontal or vertical) for drying the screen to prevent scum and streaking

identify the effect of heat on the emulsion during the drying process

outline health and safety concerns when exposing the screen

describe the operating features of the direct projection camera

explain how to set the enlargement factor and take into account registration on the frame for the appropriate printing machine

describe the exposure techniques and procedures that are used and how to calculate exposure time

identify the effect of temperature, pressure and period of washing on the emulsion, including how to determine when washing out is complete

outline the post-curing effect on the stencil

summarise the information that is obtained from the MSDSs for a particular blockout

explain how ink and stencil type influence the choice of blockout

outline the preventive measures that can be taken to minimise pinholes and the importance of taping the edge of the frame

describe how a screen can be identified at a later date

identify required manuals, safety and other documentation and briefly outline the relevant information in each source.