新闻中心
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.
Many customers consider the cost of purchasing glue, but not everyone considers the cost of using the wrong type of glue or whether you are using adhesive correctly. Glue is only a small part of a large-scale project, but if applied incorrectly, it may lead to production issues. Insufficient use of adhesive can lead to […]
Petroleum resin is a thermoplastic resin produced by pre-treatment, polymerization, distillation, and other processes of C5 and C9 fractions produced as by-products of petroleum cracking. It is not a high polymer, but an oligomer with a molecular weight between 300-3000. C5 petroleum resin ① Name and characteristics Chinese alias: C5 resin; Fatty hydrocarbon resin. English […]
hot melt adhesive pelletsAre you afraid of ultraviolet rays? Hot melt adhesive particles are based on high molecular weight materials such as EVA, PO, PA, etc. These materials undergo photo oxidative degradation under long-term UV irradiation – molecular chain breakage, decreased cross-linking degree, resulting in yellowing and brittleness of the adhesive layer, and decreased bonding […]
Direct answer: The consumption of adhesive particles is relatively high, and 90% of the problem lies in four areas – excessive setting of adhesive amount, waste caused by improper temperature, equipment leakage, and mismatched selection of adhesive particles. After item by item investigation, most factories can reduce unit adhesive consumption by 15% -30% without sacrificing […]
