新闻中心
The selection of hot melt adhesive in packaging composite scenarios should not only be based on whether it can stick or not. The substrate combination, adhesive application method, and subsequent flow conditions determine whether the solution is suitable for the actual production line. This article provides a judgment framework that is easy for procurement and process personnel to use together.
Core Keywords
Packaging composite adhesive, packaging hot melt adhesive, EVA hot melt adhesive, packaging material bonding, hot melt adhesive selection
Can this glue stick? “Is the most common question in packaging processing, but it is usually not specific enough.
If the substrate is paper to paper, the judgment logic is different from that of paper to laminating material; If rubber rollers are used for glue application, the requirements for point like glue application are also different; If the finished product needs to undergo stacking, transportation, or temperature changes, the testing method cannot only focus on the pressing moment.
For the selection of packaging composite adhesive, it is recommended to first clarify the following three conditions.
| Conditions that need to be confirmed | Issues to be concerned about | The significance of selection |
|---|---|---|
| Substrate combination | Whether the surface is flat, coated, glossy or has special treatment | Assessing the wetting and adhesion adaptability of adhesive to material surfaces |
| Glue application process | Rubber roller, spray glue, manual or semi-automatic equipment | Determine the control methods for glue, positioning, and glue application amount |
| Finished product circulation | Whether it is stacked, compressed, transported, or used in different environments | Determine which follow-up behaviors need to be observed |
After confirming the three conditions, it will be more effective to arrange sample testing. Testing should not be limited to just one sample, but should cover the appearance after continuous gluing and pressing under normal production cycle, as well as the edges and stress positions after placement.
Purchasing personnel can also ask more specific questions. For example, instead of asking ‘Do you have any packaging adhesive?’, explain ‘What materials need to be bonded, what equipment will be used, and what are the current concerns?’. This way, the suggestions provided by the supplier are more likely to be implemented on site, rather than being limited to the product name.
Sunlife can assist in sorting out the selection direction of hot melt adhesive based on packaging material combinations and adhesive application processes, and provide sample testing support; After the scheme is stable, it can also be coordinated with technical communication during continuous supply and process adjustment.
FAQ
Q: Can packaging composite adhesive be screened by price first?
A: Prices can be compared, but compatibility should be confirmed first. If losses are caused due to glue cracking, appearance issues, or rework, the difference in unit price may not necessarily represent the actual cost difference.
Q: Why do we need to explain the subsequent transportation conditions?
A: After being stacked, compressed, or subjected to environmental changes, the bonding area of the packaged product may face different stress states from the current state of the sample.
Q: Does sample testing only require the participation of the procurement department?
A: It is recommended that procurement, process, and frontline operators participate together in order to simultaneously assess supply, equipment adaptability, and finished product requirements.
The business trend of the printing industry this year is based on the observed data from the National Bureau of Statistics on large-scale enterprises (with an annual operating income of over 20 million yuan). There are nearly 7,000 large-scale enterprises in the printing industry. Compared with the 100,000 enterprises in the entire industry, their revenue […]
Recently, ASI (Adhesives & Sealants Industry), a well-known magazine in the adhesive and sealant industry, released the list of the top 20 adhesive and sealant manufacturers in the world for 2024. ASI holds this selection every year. It acquires information through communication with enterprises, comprehensive collection of enterprise data and other means, and comprehensively analyzes […]
Many manufacturers, including hot melt adhesive manufacturers When problems arise, they are always blamed on the employees. However, the problem often does not lie with the people, but with the management process of the manufacturer. Chaotic production management has led to the loss of production personnel. The hot melt adhesive market is huge, and all […]
It was recently learned that Henkel General Industries’ Manufacturing and Maintenance business Unit will increase product prices starting from June 30, 2024. For new orders and existing orders after June 30, the adjusted new prices will be applied. Henkel’s reason for adjusting the product prices this time is that due to the continuous impact of […]
