You Xiong qi ye adhesive tape

Invisible tape or plain transparent tape.

Invisible tape is mainly used to repair the punched paper surface, and the surface can also be written (transparent tape is not good), without too many traces and no shadow in copying. ?

Scotch tape is the tape we use every day. On the basis of the original BOPP film, it is subjected to high-voltage corona, roughening at the same time, coated with glue, and then divided into small rolls with long strips. On May 30th, 1928 made an application in Britain and America, and Drew developed and produced it.

Transparent tape does not have this trouble, but it is easy to stick the paper on the original test paper by the way, causing the paper to stand up, and the piece stuck by the tape is translucent. It's easy to tear up this paper.

Extended data:

Scotch tape composition:

1. Backing, mainly opp, pvc, pet, pe, etc. , mainly bopp in China.

2. Adhesive, the main materials are natural (synthetic) rubber and acrylic acid.

Manufacturing method of transparent adhesive tape:

The adhesive tape is the adhesive tape that we use every day. On the basis of the original BOPP film, it is roughened by high-voltage corona, then coated with glue, and then divided into small rolls. Adhesive tape is acrylic adhesive, also called pressure sensitive adhesive, and its main component is tincture. Tincture is a kind of polymer active substance, and the temperature has a certain influence on the molecular activity.

The tincture content of glue directly affects the use of adhesive tape. The initial adhesion of normal sealant tape is ≥ 13 (number of steel balls), and the thickness of this adhesive tape is generally 22 microns, which meets the standard thickness.

For colored tape, it is convenient for marking and shielding purposes, generally beige and khaki are more. The color of colored tape is the color of glue.

Squeeze the cellophane tape tightly and then pull it away quickly, so that the glue on one side can be torn off and the purity and transparency of the original film can be seen.

References:

Baidu Encyclopedia: scotch tape