Vacuum packaging bags believe that everyone should have more contact in life, and some people may use it often. People will find that the vacuum packaging bag has wrinkles during the process of use. Why does the vacuum packaging bag wrinkle? ?
1, the substrate thickness is uneven
The uneven thickness of the substrate inevitably affects the packaging of the vacuum packaging bag, so that the thickness of the substrate should be uniform during packaging, so that the problem of wrinkling of the packaging bag can be effectively avoided at the time of packaging.
2, substrate unwinding skew
In order to be able to make it not skew during transmission. The best way to solve this problem is to adjust the position of the film, so that the problem of wrinkling of the vacuum bag can be effectively avoided.
3, too much glue or lack of glue
Because the problem caused by the glue is relatively easy, consult experienced people, let them inform the normal paint specifications, and then evenly glue, adjust the amount of glue, which can effectively solve the problem of uneven paint.
4, the adhesive is not dry enough
If the adhesive is not sufficiently dried, the adhesion will be reduced and the two substrates after the composite will be displaced. Then we should make the adhesive fully dry and adjust the process parameters. Reducing the amount of solvent remaining, the problem is solved.
5, the composite film does not cool or cool enough to receive the volume directly
If the composite membrane receives the coil without cooling or cooling enough, then we should wait for the composite membrane to cool down and then rewind.
The reason why the vacuum packaging bag wrinkles is mainly reflected in the above aspects. If people want vacuum packaging bags to wrinkle, they should pay attention to the above problems, so as to ensure the integrity of the vacuum packaging bags.
