Richard Drew of Scotch Tape in 1928, Sao Paulo, Minnesota, USAOn May 30, 1928, when applying in Britain and the United States, Drew developed a very light, press-fit adhesive. The first attempt was not sticky enough, so Drew was told: " Take this stuff back to your Scottish bosses and ask them to put more glue! " (" Scotland " means" stingy. " However, during the Great Depression, people found hundreds of uses for this tape, from mending clothes to protecting broken eggs.
Why can adhesive tape stick things? Of course, it is because it is coated with a layer of adhesive on its surface. The earliest adhesive came from animals and plants. In the 19th century, rubber was the main component of the adhesive. However, various polymers are widely used in modern times. Adhesives can stick to things because they form bonds between their own molecules and the molecules to which they are attached, which can firmly bond the molecules together. The composition of the adhesive varies according to different brands and types of polymers.
Tape Introduction: BOPP tape is an indispensable product for any enterprise, company or individual. There is no perfect standard for the tape industry in the country. There is only one industry standard " QB / T 2422 - 1998 BOPP pressure-sensitive adhesive tape for sealing cases".
The adhesive tape is a kind of adhesive tape that is used in our daily life after being coated with glue after being roughened by high voltage corona on the basis of the original BOPP film. Tape glue is acrylic glue, also called pressure sensitive adhesive, and its main ingredient is tincture. Tincture fat is a high molecular active substance, and the temperature has certain influence on molecular activity. The tincture fat content of glue directly affects the usage of adhesive tape. The initial adhesion of normal sealing tape is between ≥ 13 ( steel ball number ), and the thickness of this tape glue is generally 22 microns. It is a standard thickness.
The adhesive tape can be divided into high temperature adhesive tape, double-sided adhesive tape, insulating tape, special adhesive tape - pressure sensitive tape and die-cut adhesive tape according to their functions, and different functions are suitable for different industry needs.
The tape basic test items are as follows:
1. Appearance Hg / T 2408 - 1992
QB/T 2422 - 1998
2. Dimensions Hg / T 2408 - 1992
QB/T 2422 - 1998
3. Initial Viscosity GB / T 4852
4. Sticky GB / T 4851
5. Tensile strength ( longitudinal direction ) and elongation at break GB / T 7753
6. Tear Degree ( Transverse ) GB / T 455.1
7. substrate thickness GB / t 7125
8. Paper Die Inner Diameter QB / T 2422 - 1998
9.The peel strength at 9 180 ℃ is normal ( wet heat aging ) GB / T 2792