In the eyes of most people, sealing glue is a low-cost and convenient packaging product, but it is precisely because of its low price that people neglect to distinguish the quality of sealing glue when purchasing it, which affects the normal progress of packaging operations. In this issue, we will popularize science on how to distinguish the quality of box sealing glue.

Sealing adhesive is a type of tape used in our daily life, which is based on the original BOPP film and made rough on one side by high-voltage corona discharge. After being coated with adhesive, it is divided into small rolls of red by fire strips. Therefore, the preferred strength of the adhesive tape depends on the quality and thickness of the BOPP film. The BOPP film made from raw material particles has good brightness and strong flexibility.

The thickness of the general film is between 28 microns and 30 microns. The strength of BOPP film mixed with recycled materials will decrease, so the manufacturer will increase the thickness of the film. This type of tape feels thick to the touch, but has poor strength and a short shelf life. After being left for about half a year, it will show significant aging, and the appearance will be brittle, making it easy to break during use.

The initial adhesive force required for normal box sealing tape is generally 22 to 28 microns in thickness. The adhesive tape mixed with impurities has a very high initial adhesion when there is no evaporation, so it is necessary to stick the object with tape and quickly swing it open to check the adhesion force. After repeatedly sticking it several times and touching it with your hand, the adhesion will significantly decrease.

In fact, our intention in using sealing tape is not to stick it firmly, but to stick it firmly without separation. Nowadays, most tapes with impurities will break open after packaging operations for a period of time and cannot be pasted again, especially in low temperature environments and dry conditions with wind.

Once again, low-quality tape is prone to breakage and has low strength, mainly related to the quality of the film. Therefore, when selecting tape, it is necessary to carefully consider the width and thickness of the tape.

The outer surface of the tape is coated with hot melt adhesive, which has excellent adhesion and a more secure sealing. The appearance color is exquisite and suitable for packaging exquisite or trendy products.

The tape is super transparent, and after wrapping the object with tape, it can better showcase its impact, making it very suitable for customers who have high requirements for product image!

Using coated kraft paper as the substrate and applying a special adhesive, it has advantages such as waterproofing, strong adhesion, tensile resistance, and no warping. Suitable for fresh packaging and liquid product packaging.


The article originates from Heshan Hongli Plastic Products Co., Ltd., a manufacturer of box sealing adhesive
www.hshangli.com