Photo Emulsion is used to prepare stencils that are used in printing industry by help of positive films.
Japanese MURAKAMI company has preparedPhotocure WSR Diazo Type high performance photo-emulsion special for market.
Applications and Specifications
► Diazo Base Photo Emulsion suitable for Textile Printing
► Applicable for water base ink and plastisol ink
► Superior image reproduction with good resolution and edge definition
► Realization of flatter coated surface with ease of coating process
► Lesser Sticky Surface (stronger resistance to humidity)
► Viscosity: Approx 22.000 mPa･s （at 25℃）
► Solid Contents: Approx 46%
► Standard Packaging: 5kg set
|Water & Solvent||Ranking||Solvent||Ranking|
|Toulene||Good||Citrus based chemicals||Good|
|Acetone||Fair||Methyl Ethyl Ketone||Fair|
|Ethyl Acetate||Fair||Dimethylformamide||Not Recommend|
1.Clean and degrease the screen mesh to enhance coating results (Recommendation of use Our “MSP Cleanser”).
2.Dissolve the attached Diazo in water well (5～10% dilution against Emulsion amount). Do not use “Hot water”.
3.Pour the dissolved diazo into emulsion and stir throughly.
4.Leave the mixed emulsion overnight or filtrate it with Mesh (100cm/250inch or higher mesh) for the emulsion to de-bubble.
5.Coat the emulsion as slow speed as possible to prevent bubble occurrence etc during coating process.
6.Keep the Coated Screen inside Oven Dryer around 40℃ with air circulation.
Storage and Others
○ It’s ideal that you shall use up the mixed(after sensitized stage) within 2 week.
○ It’s advised you filtrate the emulsion with Mesh etc… whenever you put the photo emulsion back from coating bucket into emulsion bottle.
○ It can help you to remove unwanted particles collected during coating process.
|Mesh||EOM (μm)||Lamp：3kw Metal / Distance: 100cm (UV:42, Intensity: 12mw/cm2)|
|Polyester 31/71 (W)||35||210～270 sec|
|Polyester 59/48 (W)||10||90～105 sec|
|Polyester 59/48 (W)||15||95～110 sec|
|Polyester 100/40(W)||15||100～130 sec|
* Above are guideline only. It’s recommended that you do a step exposure to obtain your desire timing.