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Created on 09.15
Hot Melt Adhesive Coating Machine for Packaging Applications
Hot melt adhesive coating is becoming an attractive solution for packaging manufacturers looking to improve adhesive application efficiency and reduce material costs.
For high-volume packaging applications, using finished double-sided tape can increase adhesive material costs and limit flexibility. A hot melt adhesive coating machine allows manufacturers to apply adhesive directly during production and create a flexible adhesive layer according to the product requirements.
KQ Automation provides customized hot melt adhesive coating solutions for packaging and paper-based products.
What Is a Hot Melt Adhesive Coating Machine?
A hot melt adhesive coating machine applies hot melt adhesive onto a substrate such as release liner or directly onto the product.
For suitable applications, the process can be:
Hot Melt Adhesive → Coating → Release Liner → Adhesive Application
This approach can be used to create a double-sided-tape-like adhesive structure without relying entirely on pre-made adhesive tape.
KQ's hot melt adhesive solution supports different coating requirements, including adjustable glue amount, glue width, glue thickness, and coating length.
Why Use Hot Melt Adhesive Coating Instead of Finished Double-Sided Tape?
Finished double-sided tape normally has fixed specifications. Manufacturers need to purchase specific tape widths, thicknesses, and lengths.
For high-consumption packaging products, this can create unnecessary material costs and reduce production flexibility.
A hot melt adhesive coating solution can provide more control over the adhesive application process.
Key advantages include:
- Adjustable adhesive amount
- Adjustable coating width
- Adjustable adhesive thickness
- Adjustable coating length
- Flexible application for different packaging structures
- Suitable for automated production
For certain high-consumption packaging applications, KQ's application analysis indicates that hot melt adhesive combined with release liner may reduce material costs compared with finished double-sided tape. In some applications, the potential saving can be around 30%–40%, depending on the product and adhesive requirements.
Hot Melt Adhesive Coating Applications
KQ's hot melt adhesive coating technology can be considered for a variety of packaging applications.
1. E-Commerce and Courier Bags
E-commerce packaging requires large quantities of adhesive materials.
For courier bags and security bags, hot melt adhesive with release liner can provide an automated adhesive application process while helping manufacturers control adhesive consumption.
This is particularly suitable for high-volume disposable packaging.
2. Paper Bags
Hot melt adhesive coating can also be applied to paper bags, including:
- Shopping bags
- Takeaway bags
- Hand-carry bags
- Special paper bag structures
The adhesive can provide functions such as sealing, bonding, or preventing unwanted opening depending on the product design.
3. Special Packaging Structures
Some packaging products require adhesive application in specific positions or shapes.
Instead of manually applying tape, KQ can develop an automated adhesive application structure according to:
- Product structure
- Adhesive type
- Application position
- Production speed
- Existing equipment
This application-based approach allows the system to be adapted to different packaging requirements.
Two Hot Melt Coating Methods
KQ's application solution can use different coating methods depending on the product.
Roll Transfer Glue Application
In a roll transfer process, hot melt adhesive is first coated onto release liner and then transferred onto the product.
Hot Melt Glue Head → Release Liner → Roll Transfer → Product
This method provides flexibility in controlling adhesive width, thickness, amount, and length.
Direct Product Coating
For some products, hot melt adhesive can be applied directly to the product before the release liner is attached.
This method can be considered for paper bags, packaging bags, and special product structures.
Is Hot Melt Adhesive Coating Suitable for Every Application?
Not necessarily.
The adhesive process should be selected according to the product's actual requirements.
For example, high-consumption packaging with a relatively short product life cycle can be a suitable application for PSA hot melt adhesive.
However, some high-end electronic product packaging may require long-term adhesive stability and resistance to temperature changes. In these applications, established branded double-sided tape may still be a more appropriate choice.
Therefore, KQ focuses on analyzing the application before recommending an adhesive automation solution.
KQ Customized Hot Melt Adhesive Automation
KQ Automation is not limited to supplying a standard hot melt adhesive coating machine.
The engineering process starts with the customer's actual production requirements:
Product → Material → Adhesive → Application Position → Production Speed → Equipment
KQ can develop customized adhesive application structures based on these factors.
This makes the solution suitable for both new production lines and existing equipment that requires automation upgrades.
Online Retrofit for Existing Production Lines
KQ also provides online retrofit solutions.
Instead of replacing the complete production line, the adhesive application module can be integrated into existing equipment such as:
- Folder gluers
- Paper bag machines
- Packaging production lines
- Printing equipment
This allows manufacturers to upgrade their existing production process while reducing the need for a complete equipment replacement.
Why Choose KQ Automation?
KQ focuses on adhesive automation solutions rather than simply selling individual machines.
The company's product range covers:
- Automatic tape application
- Hot melt adhesive application
- Cold glue spraying
- Plasma surface treatment
- Glue inspection
- Customized adhesive automation and retrofit solutions
The goal is to help manufacturers select the right adhesive process according to their actual production requirements.
Conclusion
A hot melt adhesive coating machine can provide an efficient and flexible alternative to finished double-sided tape for suitable packaging applications.
For high-volume products such as courier bags, paper bags, and disposable packaging, hot melt adhesive coating with release liner can provide greater control over adhesive application and may offer material cost advantages.
KQ Automation provides customized hot melt adhesive coating and adhesive automation solutions based on the customer's product, adhesive, production process, and existing equipment.
Looking for a hot melt adhesive coating solution for your packaging production line? Contact KQ Automation to discuss your application.
Best regards,
Ryan Liu
KQ Overseas Sales Representative
Website: https://en.keqi-auto.com/
Email: lc@keqi-auto.com
Tel / WhatsApp / WeChat: +86 18925560856
KQ Sales Representative Business Card
We are committed to excellence in everything we do and look forward to working with you!
We are committed to excellence in everything we do and look forward to working with you!
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+86 181 0293 8927
+86 189 2556 0856
+86 181 0293 8927
+86 189 2556 0856
luna@keqi-auto.com
lc@keqi-auto.com
luna@keqi-auto.com
lc@keqi-auto.com
No.8 Jinniu Street, Taigongling, Dalingshan Town, Dongguan City, Guangdong Province
No.8 Jinniu Street, Taigongling, Dalingshan Town, Dongguan City, Guangdong Province
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+86 181 0293 8927
+86 1892556 0856
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