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The cover of the express envelope is self-adhesive, and it is recommended to use one that has fast initial adhesion, good adhesion to PE and paperHot melt adhesive granulesApply a strip-shaped adhesive line, and the sealing can be controlled by sticking or tearing. The key lies in the opening time and the balance of adhesion.
Sunlifehot melt adhesiveThere are special granules for envelope sealing, and Guangzhou Sunlife Trading can match the glue according to the sealing machine speed to reduce leakage and overflow.
Q: Why are some envelopes not sealed securely?It is often due to insufficient adhesive or low temperature, resulting in insufficient initial adhesion.
Q: Can I tear off the sticker repeatedly?The disposable sealing design is not recommended to be repeated. If it needs to be removable, a removable formula should be selected.
Q: How can the glue line be laid more efficiently?Apply with fine toothed rollers, which not only saves glue but also ensures uniformity.
Can EVA hot melt adhesive be reused? Hot melt adhesive is widely used in industries such as electronic components, metals, wood, toys, furniture, handicrafts, paper products, textiles, packaging, etc., all of which require hot melt adhesive. Someone asked before: Can EVA hot melt adhesive be reused? If it can be reused repeatedly, isn’t the economic […]
There are many types of adhesives, including hot melt adhesive, water-based adhesive, oil-based adhesive, etc. Different adhesive curing methods, speeds, times, and forms vary. What is the difference between hot melt adhesive and water-based adhesive for cardboard packaging? 1. Hot melt adhesive for cardboard packaging Firstly, let’s talk about hot melt adhesive. Hot melt adhesive […]
The quality of book binding often depends not only on the equipment and paper, but also on the binding adhesive. If a book experiences problems such as page dropping, glue peeling, stiff spine, uneven flipping, and low-temperature brittleness, it is often related to the choice of binding glue, glue temperature, paper type, and process compatibility. […]
It is crucial to choose the appropriatehot melt adhesivefor each application. The adhesive required to complete a specific task may vary greatly, so it is important to understand which adhesive is most suitable for your application. The five commonly used types of main polymer substrates are the main components of our paper boxes and box […]
