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How To Design A Screen Making
Department – Textile Screen Printers
William Shorter
CPS Technical Sales Executive/Product Manager
How To Design A Screen Making Department
• The screen is the very heart of the screen
printing process
• Without a quality screen it is impossible to get a
quality print
• Where and how that screen is made will have a
huge impact on the result
• In many companies screen making is dirty,
difficult and costly; however with a good design
screen making can be clean, quick and
profitable!
The Good And The Bad!
A Recipe For Disaster!
Exhaust fan not working
Shelves not fixed to the wall
Open container
Unlabelled containers
No gloves
No goggles
Not waterproofed electrics
Trip hazards
No safety shoes
Slip hazard
Untidy
Good Design Is All About Process Flow
• What is the process flow?
• How many screens do I need per day?
• How to avoid unnecessary handling?
• How to separate clean from dirty
• How to separate dry from wet
• What are the critical areas for contamination?
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Screen making is separated into two areas: screen cleaning and
screen making
Screen cleaning is dirty and screen making is clean
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Use white light in the screen cleaning area as it is much easier to
examine a screen under white light than yellow
Always use yellow safe lights in the screen making area
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Dirty screens are brought in from the production area
If you have a standard screen size, use mobile racking which can
be wheeled in and out
Screens are very expensive – do not leave them leant up against
a wall as they will become damaged
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Many screen cleaning chemicals are hazardous. Use a
proper storage cabinet to keep them in especially if
flammable solvents are used.
Check with your insurance company how much flammable
material you can store inside per room, typically 50 LT max.
The operators should use gloves, goggles, aprons and boots
when handling screen cleaning chemicals
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
The first step is to remove the old ink off the screen
Use a dedicated screen cleaning booth for this
Make sure there is good ventilation to exhaust the solvent
vapours away from the operator. Make sure you use low
evaporating solvents.
Use recirculation of the solvents to minimise cost
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Use a separate screen cleaning booth for stencil removal
Make sure there is both a low pressure water spray as well
as a high pressure gun – Never rinse off chemicals with a
pressure gun
The booth should be equipped with an exhaust fan especially
if haze removers are used
Use a white back light to inspect the screens
This area will become wet – use non slip mats in front of the
booth
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
The final stage in cleaning is degreasing
TOP TIP: Use an in-line water filter to remove dirt from the
water supply
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
To reduce contamination fit double sided vertical drying
cabinets between the two areas
This way screens can be loaded into the dryer from the
cleaning area and unloaded from the screen making area
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
The screen making area should be a controlled cleanliness
area to reduce contamination
Top Tip for the best screens: Operators should wear ‘clean
room’ clothing as most contamination comes from people
If you can maintain a positive pressure in the room this will
limit the amount of dust that comes in
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Try to reduce the number of times that the door has to be
opened and make sure it is a ‘self closing’ door
Position tack mats on either side of the door to pick up dust
from the operators shoes.
TOP TIP: place tack mats in front of the coating machine /
coating stand as this is a critical contamination point
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Minimise the distance between the coating machine and the
horizontal screen dryer.
Dust is impossible to remove once it has landed on a wet
coated screen
Coated screens can be stored vertically once they are dry
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
A HEPA filter fitted to the air conditioning unit will provide a
dust free environment
The ideal conditions are 55% Relative Humidity and 20°c
TOP TIP: use the CPS safelight indicator to test your
safelights
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Reduce UV reflections by painting the exposure area matt
black
Make sure there is no light spillage from the exposure unit
which could fog coated screens, or injure the operator
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Fit an in-line water filter to the washout spray
Use both a strong shower spray and a pressure gun for the
washout
The washout booth must be fitted with a back light for ease of
inspection
Fit a non-slip mat in front of the washout as this area will
become wet
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
After washout, the screens can be dried vertically
Use warm air to ensure screens are fully dry before printing
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Once dry the screens can be spotted out before printing
A near vertical inspection light box is easier to use for large
screens
Verticalrackfor
dirtyscreens
Pressure
washer
Stencil&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Verticalrackfor
dirtyscreens
Pressure
washer
Degreasing&
Hazeremoval
Non-slipmat
Screencleaning
chemicalsstorage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
DipTankAll-In-
One
Verticalrackfor
dirtyscreens
Pressure
washer
Non-slipmat
Screen cleaning
chemicals storage
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
PPE Storage
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
WashoutboothWashoutboothDiptankDiptank
PPEStorage
Vertical
loading
station
Pressure
washer
Stencilremoval
Non-slipmat
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Inkremoval
Screen cleaning
chemicals storage
Vertical
unloading
and drying
station
Washout booth
PPE Storage
Vertical
loading
station
Pressure
washer
All-in-oneinkandstencilremoval
Non-slipmat
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Screen cleaning
chemicals storage
Vertical
unloading
and drying
station
Washout booth
PPE Storage
Vertical
loading
station
Pressure
washer
All-in-oneinkandstencilremoval
Non-slipmat
Washout booth
Non-slip mat
Tackmat
Vertical dryer
for degreased
screens
Vertical dryer
for processed
screens
Emulsion
storage &
worktop
Coating machine
Tack mat
Exposure unit
Horizontal
dryer and
light box
Pressure
washer
HEPA filter air
conditioning to
create a positive
pressure
Worktop
and
storage
Screen making area
Yellow safelight
Self
closing
swing
door
Vertical light box for retouching
Work flow direction
In-line
water filter
Clean
room
clothing
Coated
screen
storage
Screencleaningarea
Screen cleaning
chemicals storage
Vertical
unloading
and drying
station
Washout booth
PPE Storage
Summary
• Screen making is the most important part
of the screen printing process
• Designing a practical, efficient screen
making department does not cost much
and can mean the difference between
profit and loss
CPS Ltd
Chemicals Products and Services
www.cps.eu
cps@cps.eu
T: 01235 773240
F: 01235 771196
Tell Us
What
You Think
Reproduction of any material whether by photocopying or storing in
any medium by electronic means or otherwise is prohibited without
prior written consent of MacDermid Autotype Ltd.
See legal disclaimer notice on www.cps.eu
© 2015. All rights reserved

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How to design a screen making room.

  • 1. How To Design A Screen Making Department – Textile Screen Printers William Shorter CPS Technical Sales Executive/Product Manager
  • 2. How To Design A Screen Making Department • The screen is the very heart of the screen printing process • Without a quality screen it is impossible to get a quality print • Where and how that screen is made will have a huge impact on the result • In many companies screen making is dirty, difficult and costly; however with a good design screen making can be clean, quick and profitable!
  • 3. The Good And The Bad!
  • 4. A Recipe For Disaster! Exhaust fan not working Shelves not fixed to the wall Open container Unlabelled containers No gloves No goggles Not waterproofed electrics Trip hazards No safety shoes Slip hazard Untidy
  • 5.
  • 6.
  • 7. Good Design Is All About Process Flow • What is the process flow? • How many screens do I need per day? • How to avoid unnecessary handling? • How to separate clean from dirty • How to separate dry from wet • What are the critical areas for contamination?
  • 8. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval
  • 9. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval Screen making is separated into two areas: screen cleaning and screen making Screen cleaning is dirty and screen making is clean
  • 10. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval Use white light in the screen cleaning area as it is much easier to examine a screen under white light than yellow Always use yellow safe lights in the screen making area
  • 11. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval Dirty screens are brought in from the production area If you have a standard screen size, use mobile racking which can be wheeled in and out Screens are very expensive – do not leave them leant up against a wall as they will become damaged
  • 12. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval Many screen cleaning chemicals are hazardous. Use a proper storage cabinet to keep them in especially if flammable solvents are used. Check with your insurance company how much flammable material you can store inside per room, typically 50 LT max. The operators should use gloves, goggles, aprons and boots when handling screen cleaning chemicals
  • 13. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval The first step is to remove the old ink off the screen Use a dedicated screen cleaning booth for this Make sure there is good ventilation to exhaust the solvent vapours away from the operator. Make sure you use low evaporating solvents. Use recirculation of the solvents to minimise cost
  • 14. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval Use a separate screen cleaning booth for stencil removal Make sure there is both a low pressure water spray as well as a high pressure gun – Never rinse off chemicals with a pressure gun The booth should be equipped with an exhaust fan especially if haze removers are used Use a white back light to inspect the screens This area will become wet – use non slip mats in front of the booth
  • 15. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval The final stage in cleaning is degreasing TOP TIP: Use an in-line water filter to remove dirt from the water supply
  • 16. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval To reduce contamination fit double sided vertical drying cabinets between the two areas This way screens can be loaded into the dryer from the cleaning area and unloaded from the screen making area
  • 17. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval The screen making area should be a controlled cleanliness area to reduce contamination Top Tip for the best screens: Operators should wear ‘clean room’ clothing as most contamination comes from people If you can maintain a positive pressure in the room this will limit the amount of dust that comes in
  • 18. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval Try to reduce the number of times that the door has to be opened and make sure it is a ‘self closing’ door Position tack mats on either side of the door to pick up dust from the operators shoes. TOP TIP: place tack mats in front of the coating machine / coating stand as this is a critical contamination point
  • 19. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval
  • 20. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval Minimise the distance between the coating machine and the horizontal screen dryer. Dust is impossible to remove once it has landed on a wet coated screen Coated screens can be stored vertically once they are dry
  • 21. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval A HEPA filter fitted to the air conditioning unit will provide a dust free environment The ideal conditions are 55% Relative Humidity and 20°c TOP TIP: use the CPS safelight indicator to test your safelights
  • 22. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval Reduce UV reflections by painting the exposure area matt black Make sure there is no light spillage from the exposure unit which could fog coated screens, or injure the operator
  • 23. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval Fit an in-line water filter to the washout spray Use both a strong shower spray and a pressure gun for the washout The washout booth must be fitted with a back light for ease of inspection Fit a non-slip mat in front of the washout as this area will become wet
  • 24. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval After washout, the screens can be dried vertically Use warm air to ensure screens are fully dry before printing
  • 25. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval Once dry the screens can be spotted out before printing A near vertical inspection light box is easier to use for large screens
  • 26. Verticalrackfor dirtyscreens Pressure washer Stencil& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval
  • 27. Verticalrackfor dirtyscreens Pressure washer Degreasing& Hazeremoval Non-slipmat Screencleaning chemicalsstorage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea DipTankAll-In- One
  • 28. Verticalrackfor dirtyscreens Pressure washer Non-slipmat Screen cleaning chemicals storage Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction PPE Storage In-line water filter Clean room clothing Coated screen storage Screencleaningarea WashoutboothWashoutboothDiptankDiptank PPEStorage
  • 29. Vertical loading station Pressure washer Stencilremoval Non-slipmat Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction In-line water filter Clean room clothing Coated screen storage Screencleaningarea Inkremoval Screen cleaning chemicals storage Vertical unloading and drying station Washout booth PPE Storage
  • 30. Vertical loading station Pressure washer All-in-oneinkandstencilremoval Non-slipmat Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction In-line water filter Clean room clothing Coated screen storage Screencleaningarea Screen cleaning chemicals storage Vertical unloading and drying station Washout booth PPE Storage
  • 31. Vertical loading station Pressure washer All-in-oneinkandstencilremoval Non-slipmat Washout booth Non-slip mat Tackmat Vertical dryer for degreased screens Vertical dryer for processed screens Emulsion storage & worktop Coating machine Tack mat Exposure unit Horizontal dryer and light box Pressure washer HEPA filter air conditioning to create a positive pressure Worktop and storage Screen making area Yellow safelight Self closing swing door Vertical light box for retouching Work flow direction In-line water filter Clean room clothing Coated screen storage Screencleaningarea Screen cleaning chemicals storage Vertical unloading and drying station Washout booth PPE Storage
  • 32. Summary • Screen making is the most important part of the screen printing process • Designing a practical, efficient screen making department does not cost much and can mean the difference between profit and loss
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