Created on 08.27
Plasma Surface Treatment Machine for Better Adhesive Bonding
Why does glue sometimes fail to stick properly to a surface?
In many industrial applications, the problem is not necessarily the adhesive itself.
The surface may have low surface energy or poor wettability, making it difficult for the adhesive to spread and form a strong bond.
KQ Plasma Surface Treatment technology is designed to address this type of adhesion problem by activating and modifying the surface before adhesive application.
What Is Plasma Surface Treatment?
Plasma surface treatment uses plasma to modify the surface properties of a material before processes such as bonding, printing, or coating.
The treatment can:
- Clean the surface
- Modify surface characteristics
- Increase surface energy
- Improve wettability
- Improve adhesive bonding
KQ describes plasma activation as a process that removes contaminants and weak boundary layers while introducing functional chemical groups that improve surface energy and wettability.
Why Does Adhesive Fail on Some Surfaces?
Some materials are difficult to bond because their surface has low surface energy.
Typical challenging surfaces can include:
- Laminated surfaces
- UV-coated surfaces
- Metallized films
- Glass
- Other difficult-to-bond materials
KQ's plasma materials specifically identify plastic laminated, UV ink, metallized film-coated, and glass surfaces as examples where conventional adhesive bonding can be difficult.
How Does Plasma Improve Adhesion?
The process can be understood in three stages.
1. Surface Cleaning
Plasma treatment can remove organic contaminants and weak boundary layers from the surface.
2. Surface Activation
The treatment increases surface energy and improves wettability.
3. Improved Adhesive Bonding
With stronger surface wettability, adhesive can spread more effectively across the surface and form a stronger bond.
KQ's test examples show a clear difference between untreated and plasma-treated surfaces, with treated surfaces demonstrating improved liquid wetting behavior.
Plasma Treatment vs Mechanical Grinding
A traditional approach for some laminated surfaces is mechanical grinding.
This can create several problems:
- Dust or powder
- Additional cleaning requirements
- Potential surface damage
- Additional power consumption
KQ's plasma solution is presented as a powderless alternative that can reduce these issues while providing surface activation.
Plasma Surface Treatment for Packaging
One important application is folder gluing.
KQ identifies metallized or laminated carton boxes as an application where plasma treatment can improve adhesive bonding.
The treatment can be integrated into the production line before adhesive application.
This is particularly useful when conventional glue has difficulty bonding to a coated or laminated surface.
Plasma Treatment for Glass
Glass is another application where surface treatment can improve bonding.
KQ's plasma solution can be used before adhesive application to increase bonding strength.
Plasma Treatment Before Printing
Plasma treatment is not limited to adhesive bonding.
KQ also identifies applications before printing, where surface treatment can help:
- Reduce print smearing
- Improve print durability
- Increase print contrast
KQ Plasma Nozzle Options
KQ provides different nozzle configurations for different applications.
The documented options include:
Rotary Nozzle
Treatment width: approximately 40–54 mm
Treatment speed: approximately 40 m/min.
Applications include:
- Inkjet printing
- Glass
- 3D printing
- Wood processing
- Furniture.
Ultra-Speed Ion Jet Nozzle
Treatment width: approximately 40–50 mm
Treatment speed: up to 120 m/min in the documented configuration.
Applications include laminated and UV-coated surfaces.
Flat-Tipped Nozzle
Treatment width: approximately 10–20 mm
Treatment speed: approximately 80 m/min in the documented configuration.
Direct Injection Nozzle
Treatment width: approximately 6–10 mm
Treatment speed: up to 120 m/min in the documented configuration.
The actual configuration should be selected according to the customer's material and production requirements.
Cabinet and Desktop Plasma Systems
KQ's plasma product portfolio includes:
- Cabinet-type plasma machines
- Direct injection nozzle systems
- Rotary nozzle systems
- Miniaturized desktop plasma machines
This allows the system to be adapted to different production environments.
Conclusion
A plasma surface treatment machine can be an effective solution when poor surface wettability causes adhesive bonding problems.
KQ Plasma Surface Treatment technology is designed for applications involving laminated surfaces, UV-coated materials, metallized films, glass, packaging, printing, and other difficult-to-bond materials.
Instead of immediately changing to a more expensive specialty adhesive, manufacturers can evaluate whether surface activation can solve the underlying adhesion problem.
Ryan Liu
KQ Overseas Sales Representative
Website: https://www.besthotmeltmachine.com
Email: lc@keqi-auto.com
Tel / WhatsApp / WeChat: +86 18925560856
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
+86 181 0293 8927
+86 1892556 0856
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