Beveled foam and production method thereof

Abstract

The invention discloses beveled foam and a production method thereof. The beveled foam comprises a foam body, wherein the foam body is of a flaky rectangular frame structure; a hollow rectangular window hole is formed in the foam body; the end surfaces of the short edges of the two sides of the rectangular window hole are parallel to the thickness direction of the foam body; the end surfaces of the long edges of the two sides of the rectangular window hole are parallel to each other, and slantwise angles exist between the end surfaces of the long edges and the thickness direction of the foam body; a first adhesive layer and a second adhesive layer are respectively compounded on the two surfaces of the foam body in a stacking manner; the first adhesive layer is located on the back side of the foam body, and the second adhesive layer is located on the front side of the foam body; and the first adhesive layer and the second adhesive layer have different viscosities. The production methoddisclosed by the invention is simple and reasonable; and the produced beveled foam has good sealing and shock absorption effects and a good using effect and is convenient to install.

Description

technical field [0001] The invention relates to the field of foam glue, in particular to an obliquely cut foam and a production method thereof. Background technique [0002] Foam adhesive, also known as foam double-sided adhesive, refers to a double-sided adhesive that is coated with a strong acrylic adhesive on both sides of the foamed cotton substrate, and then covered with release paper or film. On the calculator, the display window surrounding the calculator is covered with a layer of foam glue, which is located between the display screen and the casing of the calculator, and plays the roles of sealing, adhesion and shock absorption. The foam glue has a square frame structure, and a square window hole is cut out inside. The edge of the square window hole is punched vertically on the foam plane. During the use of foam glue, because the adhesive layer on the front and back of the foam glue is different, the front and back of the foam glue are consistent and cannot be dis...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above technical problems, the present invention provides a kind of obliquely cut foam and its production method, in which frustum-shaped cooling holes are arranged in the foam layer, and at the same time, the aluminum foil layer is used to solve the problem of the existing foam glue used for calculator displays. The reverse side is prone to misinstallation, and when observing at the same time, it will interfere with the lower edge of the calculator display window

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