In the process of using foam double-sided tape products, sometimes the foam double-sided tape will warp, which affects the use effect of the foam glue. To solve this abnormal phenomenon, we must first understand the reason for the warping. Row.
The warping of double-sided foam tape is probably due to the insufficient stickiness of double-sided foam tape. Some inferior double-sided foam tapes have little stickiness or even appear non-sticky. The stickiness of double-sided foam tape is It refers to a kind of retention of foam glue after pasting products such as cartons. The initial tack refers to the stickiness of the roll material or the construction overlap viscosity, which is generally reflected in the physical properties such as shear and peel strength. The quality of the stickiness is directly related to the safety of the product in storage, long-distance and short-distance transportation. Foam double-sided tapes with good initial tack generally have a relatively high water content in the glue; while foam double-sided tapes with good stickiness are mostly compounded with glues with less water content or more oily ingredients.
After we understand the stickiness and initial tackiness of the foam double-sided tape manufacturers, it will be easier to save time when purchasing foam double-sided tape, so that the foam double-sided tape can be used more effectively, so We must buy high-quality foam double-sided tape products. It is also possible that the pressure of the pressure roller of the labeling machine is not enough. This is mainly a problem in the production process. Therefore, in the process of pressing the foam double-sided tape, it is necessary to master the appropriate pressure roller force and select the appropriate glue material. Another reason is the improper choice of adhesive. When choosing a self-adhesive adhesive, you must first determine the self-adhesive label to be made, and whether the required adhesive is permanent or removable.
If you want to solve the problem of warping of double-sided foam tape, when labeling large-curved surfaces, thick or hard paper materials should not be used for the surface material. Film or thin soft paper should be used; and for the need to heat For the filled container, the self-adhesive surface material should use the film material and the adhesive with good initial viscosity.