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(for rotary nickel screen)
*milky white or light green emulsion for making rotary screen stencil in printing of textile industry.
●good durability of printing and excellent accuracy of stencil making
●suitable for squeegee or magnetic rotary screen printing machine.
Application:
⑴ washing the screen:
Immerse the screen into CN105 cleaning liquor for nickel screen for around 10minutes,take out and rinse with water,then dried at low temperature in an oven.at the same time,prevent the screen from being stained with dirt(it is necessary to wear protective gloves avoiding corrosiveness)
⑵ preparing the photosensitive emulsion:
it should be operated under a gentle yellow light (prohibit from operating in no opacifying condition).40-50ml of CN-103 photosensitizer solution is added into 1000g of photoemulsion ,stand for 1-2 hours to let off bubbles in a cool and dark place.then maintain the prepared photoemulsion at 5-15 ℃ a constant temperature storage box(a seal cover is needed to avoid skinning)
⑶ coating:
300g of the prepared emulsion is added into a clean scraper ring and coated on the clean screen with a speed of 10-20cm/min., then dried at 35-40℃ and 60% relative humidity in an oven circle wind and no more than + - 2℃ temperature differences.The time of drying as usual: 40-50minutes.The dried screen should be exposed timely
⑷ exposure:
fixed the coated screen on a exposure machine and fit the manuscript closely.the fit time should be determined after trial. Reference time: 5-8 times on a scanning machine or 1-3 minutes on a stationary exposure machine.
⑸ rapid curing photoemulsion for rotary screens(exempt from coloring)
pale sky blue emulsion for making rotary screen stencil rapidly in printing of textile industry.
Quick curing,strong durability of printing,precise stencil making and inspecting easily.
Suitable for squeegee or magnetic rotary screen printing machine.
⑹ development:
the exposed screen should develop timely by putting it in water at 5-30℃ for approx.3-5 minutes,then washed until patterns appear clearly,then rinse off the leaked emulsion with water underlow pressure,and dried at 50-60℃ in a constant temperature oven.
⑺ retouching:
Inspect the dried screen on an examination shelf.it is necessary to re-touch the stencil with retouching liquor for rotary screen if there are pin holes ,pattern leakage or screens stoppers.
⑻ Curing:
Curing the retouched screen at 180℃ for 30 minutes in a constant temperature oven until the film becomes yellow-green. Then take out to bind with end-ring after cooling down.
⑼ packages:
4kg or 10kg in a special plastic barrel which is packed in 16kg or 20kg carton box.
⑽ storage:
one year at 5-30℃(in a dark and dry place)