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- Do you know what photosensitive glue is?
- TIME： 2020-04-14 HITS：1255
- 1. Classification of photosensitive adhesive:Photosensitive adhesive can be generally divided into solvent - resistant and water - resistant two types. Solvent-resistant photosensitive adhesive, resistant to all kinds of organic solvents, suitable for printing oily ink; Water-resistant photosensitive adhesive, suitable for water-based ink (water-soluble printing coatings, such as textile printing paste) printing, the former screen can be removed from the film recovery; The latter generally can not be removed from the film recovery. Special water - resistant photosensitive adhesive nylon photosensitive adhesive and diazo photosensitive adhesive.2. Preparation of photographic adhesive:Diazo photosensitive adhesive component proportion: colloid 1000g+ diazo photosensitive agent 8 ~ 10g + water 50 ~ 100ml.Pour 8 ~ 10g of photosensitizer powder into 50 ~ 100ml water; Pour the dissolved photosensitizer into 1000g colloid and stir well;Defoaming for 30 ~ 60 minutes, standing for 2 ~ 3 hours before use.The amount of water should be based on the coating with colloid viscosity requirements; The photosensitizer powder must be dissolved and then poured into the colloid;Stir clockwise to avoid bubbles.The shelf life of photosensitive adhesive is 1 year before it is prepared, and the best service life is about 15 days after preparation. It can be stored at low temperature for 2 months or longer.
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