one、 Overview:

High efficiency film fading solutionST-fivetwotwo^#It is a kind of printing ink for printed circuit board/It contains a variety of high-energy fiber dissolving agents and cosolvent, which enhances the solubility of ink / dry film. It does not contain strong alkaline hydroxide (commonly known as gosh's and caustic soda), which has no measurable impact on the substrate and tin plating layer. Even if the paper-based phenolic board is treated, the substrate will not change color. It is the best stripping agent for various inks and dry films.

two、 Technical indicators:

Appearance: colorless to light yellow low viscosity liquid

PHValue:onetwo ±0.five ( one%水溶液)

Density:one.0three±0.0two

packing:two0kg、twofivekg or as required by the customer.

three、 Operating conditions:

Semi water soluble dry film/Photosensitive circuit ink as an example:

ST-fivetwotwo^#one0-two0%

temperaturefour0-five0⁰C

timethree-eightmin

4、 Storage:

Storage: store at room temperature

Period of validity: 1two months

five、 Remarks:

one、本品具碱性和腐蚀性，如不慎接触到皮肤，请即用大量清水冲洗，再用稀醋酸或食醋清洗。

two、因各种油墨性质有所差别，上述数据可能会有出入。

Stripping agentST-fivetwotwo^#Key points of operation

sureStripping:

one、Water solubilityDry film

two、半Water solubility幹膜/Photosensitive circuit ink

Including the vast majorityD/F、W/FOn different substrates.

For the peeling of anti welding ink, it is recommended to useST-fiveonethree^#Stripping agent。

Advantages:

one、It contains a variety of fiber dissolving agents and cosolvent, which speeds up the stripping speed and greatly increases the stripping amount.

withone00TScreen printedSolid content is70% of a common brandPhotosensitive circuit inktake as an example, per literST-fivetwotwo^#About circuit boards can be produced(double sided board)onefive0ft^two。 Since various fiber dissolving agents and cosolvents are consumed very little in the production process, the concentration remains basically unchanged, and the stripping amount can be increased by aboutthree0%。 However, the increase of stripping volume will increase the viscosity of working fluid (i.e. become viscous), reduce the conduction velocity of medium and spray pressure, and slow down the stripping speed,And make the washing effect worse,所with不能無限量的增加剝離量。

two、不含强礆,For various substrate materials and amphoteric metals (such as tin, zinc, etc.)AndThe coating has no effect.

three、Fast stripping speed, includingone0% ST-fivetwotwo^#The working fluid is in,four0—five0At ℃, generallyW/FSpray onlyfour0Seconds or soakingsixtySeconds, it can be completely stripped under hydraulic impact.

four、ST-fivetwotwo^#After use, the ink on the board is stripped very clean, and the ink is dissolved and dispersed in the solution. It will not affect the quality of subsequent process production.

Plate drug resistance test:

Experimental conditions: concentrationtwo0%. temperaturefive0℃、soakTimethreeMinutes.

Board status: etched pure tin plated board,FR-four。

Experimental results: no visible change.