新闻中心
A factory that makes color boxes, in order to make the sealing glue line and the box of the same color, hides the seams and makes them transparentHot melt adhesive granulesAdd color masterbatch and adjust to deep red. After going online, the glue line became blurred, blocked the gun, and there were also some areas that did not stick, and the entire batch of gift boxes was almost scrapped.
The technician found three errors during the review: firstly, poor compatibility between colorants and rubber particles, uneven dispersion, and uneven depth of rubber lines; Secondly, the colorants contain fillers, which increase the melt viscosity and cause blockages when the spray gun pressure is insufficient; The third reason is that excessive addition weakens the cohesion of the adhesive itself, resulting in a decrease in bonding strength.
| Add your own colorants | Supplier pre coloring |
|---|---|
| Uneven dispersion and flowering | Uniform and Same Color |
| Easy to block gun | Controllable viscosity |
| Strength decline | Minimum adhesion guarantee |
Q: Can I try a small amount of color adjustment myself?
Answer: Developing samples is possible, but compatibility and gun blockage tests must be conducted, so do not directly put them on the production line.
Q: Is pre colored glue much more expensive?
Answer: The quantity is similar to self-adjusting, and it also saves on rollover losses, making it more cost-effective overall.
Color mixing: You can play with small samples by adding your own color masterbatch, and hand it over to the supplier for pre coloring during mass production. The glue line is invisible and does not overturn.
A factory that exports precision instruments used BOPP tape to fix honeycomb cardboard liners. However, due to rough shipping, the liners shifted and instrument edges were damaged, resulting in a high return rate. Later, it was changed toHot melt adhesive particles are glued and fixedLet’s break down this set of tactics and talk about it. […]
Direct answer:Hot melt adhesive pelletsWhether the payment terms for procurement can be negotiated depends on three things – annual usage, performance records, and order predictability. The industry standard is that the first payment is made upon delivery, and after stable cooperation for 3-6 months, a monthly settlement of 30 days can be negotiated. For customers […]
In pearl cotton packaging processing, the procurement of hot melt adhesive should not only focus on whether it can stick or not. The surface of composite materials, pressing method, equipment cycle, product storage and transportation conditions, and appearance requirements all affect the actual adaptability. This article outlines the key issues that need to be confirmed […]
Direct answer: The root cause of the curling of these graduation yearbooks is not machines, but thick copperplate paper and high-temperature workshop conditions, where the original adhesive particles had a short opening time and insufficient initial adhesion. After switching to hot melt adhesive granules specifically designed for book binding with longer opening time and higher […]
