DIGITAL POSITIVES INDUCTION

layer1 (image)

levels

threshold (simplify) 

hue/ saturation > decide/ visualise color

layer2 (shapes)

hue saturation

knock out (dun want colours to overlap)

press layer 2 shape

command+ click 

magic wand select the shape

press later 1 

delete 

x threshold, keep tone n variety of layer1(image) : halftone >for screen printing

replicate diff gradients > dots 

PS

greyscale tiff

ILLUSTRATOR

print 

output

mode: separation 

printer: bnw

image: positive

ink options: black 

• frequency (high:fine dots, low:big dots)

lpi= frequency

CMYK(for print): ink on paper

• C: cyan(blue), M:magenta(red), Y: yellow, K:key(black)

= 4 colors overprinted to print colour

RGB(for screens): light on monitor

SPOT

= one spot ink is used to print a colour

= as a screen print ink

PANTONE

= spot colour reference system

> accurate colours for branding

> cheaper cuz less colours used

> for colours that are not reproducible using cmyk (fluorescent, metallic)

CMYK separations 

PHOTOSHOP

channels palette (right click> large thumbnails) = channel=positive

save cmyk image 

>ILLUSTRATOR 

place

print

PHOTOSHOP

new doc grayscale

new spot channel > name with 'spot'

solidity= transparency 

add colour> tint (black= darkest tint)

can apply knock out > del> white

command backspace> del objects in channel

add image in channel> blue hue

add text 

select letter

add tint

save as psd

> Ai

print> separations

> turn off cmyk

SCREEN PRINTING INDUCTION

paper screenprint> yellow n green

fabric> blue

white for textiles yellow for paper

brown tape> name, course, date

*date> when the screen is preserved until

*check dates*

can take more then one if u hv more than one colour

screens locations:

screen drawing, 

screen storage(left textiles, right paper)

1. look for old dates(in the past) / blank frames> can use
2. reserve the screen for yourself> find a roll of brown tape> stick it on frame> name, course, date(one week into the future)*7days
3. remove the screens off/ clean it yourself before using (not clean it after using)
4. bring screens into screen stripping(down the corridor, opposite to screen drying)
5. use wet tissue to clean the mask
6. clean screen 

how to remove screens:

take off the tape

put the screen into the sink

left chemical first

right chemical second

power host: turn right, on/ off

after washing

degreasing

sink outside> soap on sponge> rub on screen> thoroughly get everything off> rinse it with water

need to dry it in screen drying room(15-20mins)

coat screen with emulsion

1. flat side facing us put it against the wall
2. choose coating trough of the right side(hold it against the screen, leave a bit of border on the sides of the yellow), if theres no right size, place the screen horizontally against the wall n pick a larger trough
3. uv reactive emulsion(light sensitive paint) in black bucket>wear plastic apron n gloves if u want> pour it into coating trough(amt: depends on how big the screen is)> get an even amount on trough> close the bucket with lid
4. apply emulsion on screen> hold handle of trough> pop coating edge against the screen> tilt until emulsion running onto screen> bottom to the top(thin film)> tilt down to hv them drip back in(drip in the edge, use kidneys, scrape off anything u dun want on both sides
5. put back excess emulsion into the bucket using the kidney
6. check coat of screen at the lightbox (even, light through)
7. put screen in the drying cabinet (15-20mins)
8. clean coating trough with sponge with water> pop it back onto the rack
9. exposing positives/design onto screen(positives can be on acetate, paper or tracing paper) black blocks the light
10. design facing up, leave gap between two designs, between design n frame(things on top of screen won’t affect it)
11. pull string on top of screen
12. when finished, wash both sides, wash design> get light coning through the screen on positives> quick rub with sponge
13. put it in drying room(15-20mins)
14. put brown tape on the yellow borders, cover unwanted design(yellow)with brown tape
15. grab acrylic paint
16. add acrylic printing medium*get it from shop* 2/3 medium, 1/3 paint(slow down drying time of acrylic) (more ink less binder, more opaque) (more binder less ink, transparent) if too watery> more ink *have to pay for pot* *bring in own container with lid* can use acrylic with no names on it
17. work from light to dark
18. fit too n bottom screen on the bars of the vacuum tables
19. lock with feet add papers to add more pressure
20. grad a squeegee on the walls(squeegee has to be wider than design
21. pour paint on the screen bottom
22. higher the screen 
23. flooding= fill screen with paint> push ink to bottom to top with squeegee 
24. lower screen parallel to table
25. use squeegee tilt it towards urself push it
26. slide paper underneath of the registration paper
27. print
28. can mark paper with tape to mass produce

overlays and overprints

= colours sit on top of each other to make a new colour 

can draw positives by hand(ink pen, china pencil)/ cut black paper

if there is too much emulsion on it, use the coating trough, put screen back against on wall, use trough to scrape off the unwanted emulsion

[light, water sensitive] store in dark dry environment 

ILLUSTRATOR INDUCTION 1

Illustratoràvector àcan zoom into any size (maintains quality) (more origin)

Photoshopàpixelsàblocks (more realistic) 

Break down logos

Make them smaller

Reset workspace (window) àreset toolbars 

RGB àfor screens àreach colors that cannot be printed

CMYK àfor prints àcolors spectrum only for printing 

*set color before drawing shapes*

o  Fileànew (command +N)

o  Command +R àsee scale 

o  Tabàx sides

o  Curved line: Enter àx close shape àmove on to other shape àclick LEFT A to B RIGHT 

o  Curved then straight: Click A àleft to B àclick on point you just created àstraight 

o  ALTàpress handles àadjust the curve

o  Command +,- àzoom in, out

o  Spaceàdrag

o  Command +Z àundo 

o  [A] Filled arrow àclick point àdirectly edit point (click and drag) or (adjust)

o  [V] empty arrow àwhole shape

o  empty arrow àwhole shape àfill àin front àcolor

o  double click fillàcolor palette #no. àpersistent color 

o  swatchesàcreate new color 

o  click shape àpath 

o  click stroke àstroke panel àfine tune

o  capàopen line

o  align stroke àthicken (inside/ outside of stroke)

o  command +A àselect ALL

o  left + hold àoptions 

o  hold SHIFT àperfect square (1:1ratio)

o  hold ALT àchange centre

o  shapeà+ sides 

o  windowàpathfinder àadd shapes…/ at slice/ …

o  click shape àobject àarrangeàto front

o  select whole thing àshape Modes 

àdivide àselect shape àobject àungroup 

èseparate shapes

o  selectàdeselect àcreate circle in circle 

o  ALT+ SHIFT àCIRCLESSSS

o  Line= pencil if wanna draw lines

o  SHIFT+ line drag à45degrees

o  ALT + press existing line + drag = copy

o  Save

àfile àsave as 

àfile àexport àexport as

PNG àsupoort transparency 

JPEG àx transparency 

Use artboardàmaintain size

X artboard àcrops the size