C A S E S H O W
Basic operation method of glue
1, super glue (slow-drying glue, quick-drying solvent) Operation method: Apply super glue to one side or both sides (dry and oil-free bonding surface) of the adhesive to be bonded with a brush or needle cylinder, and immediately bond it (not allowed to be bonded after drying), so that it can be in close contact and positioned for a few seconds. Curing time: the initial curing time is 4-6 hours, and the maximum curing time is 24 hours. Precautions: Super glue is flammable, and thermal insulation coatings and materials should be stored in a cool and ventilated place, and should be stored and transported according to the rules of flammable materials. Pay attention to ventilation in the construction site and prevent contact with fire. Cover the glue at any time after use to avoid volatilization. 2, instant glue (dry glue) Operation method: Apply instant adhesive to one side or both sides of the adhesive to be bonded, and immediately bond it (it is not allowed to be bonded after drying), so that it can be closely contacted and positioned for a few seconds. Curing time: 5 minutes to reach the maximum strength. Note: Instant glue is flammable, so it should be stored in a cool and ventilated place and stored and transported according to the flammable rules. Pay attention to ventilation in the construction site and prevent contact with fire. Cover the glue at any time after use to avoid volatilization.
Introduction of plastic surface treatment technology
First, corona treatment method. By discharging high voltage charge to the surface of the film, under the action of ionization, the surface of the film is coarsened, the surface energy is improved, the ability of combining with ink is increased, and the purpose of strengthening the firmness of ink layer is achieved.
Second, surface coating. The surface of the film is coated with a special coating before or during the production of self-adhesive materials, in order to improve the surface tension of the film and strengthen the bonding ability between the film and ink.
Third, printing processing. In order to increase the adhesion of ink to the film surface, the plastic film factory adopts special technology to transform the film surface characteristics by chemical methods in the film production process.
What is the main component of glue?
The most common ingredient of glue is water and solvent. Then, according to different brands, there are different exclusive ingredients, which are definitely thickeners and preservatives. As for the main ingredients, vinyl acetate resin and polyvinyl alcohol are one of them.
The common glue in the market is basically composed of water and solvent, and some polyvinyl alcohol, white latex, sodium stearate, talcum powder, urea, ethylene glycol, sucrose, essence and so on are added.
The main component of 502 glue is ethyl α-cyanoacrylate. Its essence is colorless, transparent, low viscosity, nonflammable liquid, single component, solvent-free, slightly irritating, volatile, and volatile gas with weak tears.
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