Processing technology of adhesive tape
A processing technology and tape technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of high temperature resistance, easy to be punctured by sharp objects, etc., to achieve quality assurance, reasonable structure ratio , the effect of simple process
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Embodiment 1
[0019] A kind of processing technology of adhesive tape, described processing technology comprises the steps:
[0020] (1) Take the original BOPP belt as the base material, cut it into a block with a width of 6cm and a length of 30cm, and after high-voltage corona, use a grinding wheel to grind both sides of the original BOPP belt into a rough surface;
[0021] (2) Wipe the surface of one side of the polished BOPP belt with acetone, ethanol and deionized water respectively;
[0022] (3) Take the Parafilm sealing film, cut it into a strip with the same width as the original BOPP tape and place it on the conveyor. After heating and softening at 60°C, press 2MPa onto the original BOPP tape, and press it on the Parafilm sealing film every 10cm A piece of BOPP raw tape to obtain a composite film;
[0023] (4) Use a needle punch to punch a vertical dotted line hole 1cm behind the original BOPP tape on the composite film.
[0024] (5) Add 10wt% polyisobutylene to the acrylate, he...
Embodiment 2
[0026] Example 2: The rest is the same as in Example 1, except that in step (1), the original BOPP tape is cut into blocks with a width of 20 cm and a length of 30 cm, polished with metallographic sandpaper, and the Parafilm is sealed in step (3) After the film is heated and softened at 68°C, a piece of BOPP original tape is pressed on the Parafilm sealing film at an interval of 15cm. In step (5), the pressure-sensitive adhesive is obtained after heating to 320°C in the reaction kettle and cooling to 34°C. In (6), the thickness of the pressure-sensitive adhesive is 0.03mm, and the total blowing time is 1min.
Embodiment 3
[0027] Example 3: The rest is the same as in Example 1, except that in step (1), the original BOPP tape is cut into a width of 10 cm and polished with metallographic sandpaper; 1MPa pressurized onto the original BOPP tape, and a piece of BOPP original tape was pressed on the Parafilm sealing film at an interval of 13cm. In step (5), it was heated to 300°C in the reaction kettle and cooled to 35°C. Adhesive, in step (6), the thickness of the pressure-sensitive adhesive is 0.04mm.
[0028] In the above three examples, the three types of film were completely wrapped on the paper balls and tested under high-humidity environments with a humidity of 50%, 70%, and 90%, respectively. After 5 days, 4 days, and 1 day, the paper balls Completely wet, 10 times stronger waterproof and sealing performance than ordinary scotch tape. The experimenters tore 23cm long this tape and ordinary tape respectively within 1 minute. As a result, 20 pieces of this tape can be torn, but only 2 ordi...
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