BOPP touch film is commonly produced with one oil coating, while SZ Film Factory uses two oil coating passes for our high-end touch film. This extra coating step gives us more control over the surface feel, coating uniformity, and final appearance of the film.
What Is BOPP Touch Film?
BOPP touch film is BOPP film with a special surface coating that creates a soft and premium touch. BOPP stands for biaxially oriented polypropylene. It offers good strength, clarity, and dimensional stability.
The touch coating changes the surface experience of the film. It can give packaging and printed products a smoother, softer, and more premium feel.
Our BOPP Touch Film is designed for applications where surface feel is an important part of the product experience.
How Is BOPP Touch Film Made?
The production process includes BOPP film preparation, surface treatment, oil coating, drying, and quality inspection. The basic process is similar across many touch film products, but coating methods can differ between manufacturers.
For standard production, one oil coating is commonly used to create the required touch effect. At SZ Film Factory, we take a different approach for our high-end touch film.
1. BOPP Base Film Preparation
A stable BOPP base film provides the foundation for the final touch film. The film must have consistent thickness, good flatness, and a clean surface before coating.
The base film is first unwound and prepared for the coating process.
2. Surface Treatment
Surface treatment helps the coating bond properly with the BOPP film. A suitable surface energy is important for coating adhesion and long-term stability.
Corona treatment is commonly used to improve the surface before coating.
3. First Oil Coating
The first oil coating creates the initial functional coating layer. The coating is applied evenly while controlling coating weight, line speed, and drying conditions.
After coating, the film passes through the drying system to stabilize the first layer.
4. Second Oil Coating
The key difference in our high-end touch film is the second oil coating. While one coating is commonly enough for standard touch film production, we apply the oil twice for our high-end products.
The second coating gives us another opportunity to control the final surface characteristics. It helps us achieve the touch, appearance, and consistency required for premium applications.
Two coating passes do not simply mean “more coating.” The process requires careful control of coating weight, drying temperature, coating speed, and the interaction between the two layers.
This is an important part of our high-end BOPP touch film production.
Industry approach: One oil coating is commonly used for BOPP touch film.
SZ Film Factory approach: Two oil coating passes are used for our high-end touch film.
If you need a premium touch effect, contact our film team to discuss your application.
Why Do We Use Two Oil Coatings?
We use two oil coatings because our goal is to produce a higher-end touch surface rather than simply meet the basic touch requirement. The second coating gives us greater process flexibility and control over the final surface.
Depending on the product specification, this approach can help with:
- Surface feel
- Coating uniformity
- Surface appearance
- Coating consistency
- Premium product positioning
The final result also depends on the coating formulation and production parameters. Therefore, two coating passes are part of a controlled production system, not a single factor that determines film quality.
Drying and Curing Are Also Important
Proper drying is essential after each coating pass. The coating must be dried under controlled conditions before the film moves to the next stage.
Temperature, drying time, line speed, and coating weight all need to be controlled. Poor drying can affect the surface feel and coating stability.
For high-end film production, every process parameter matters.
How Do We Check BOPP Touch Film Quality?
Quality control focuses on both the physical film and the final surface effect. Typical inspection items include:
- Film thickness
- Coating uniformity
- Surface appearance
- Touch and softness
- Adhesion
- Gloss and haze
- Surface defects
- Roll winding quality
For customers using touch film in premium packaging or printed products, consistent surface quality is especially important.
High-End BOPP Touch Film From SZ Film Factory
SZ Film Factory focuses on high-end BOPP and PET film production, with special attention to functional surface performance. Our product range includes touch film, anti-scratch film, anti-fingerprint film, and other functional film solutions.
For our high-end BOPP touch film, two oil coating passes are a key part of our production approach. This differs from the more common one-coating process and allows us to focus more closely on the final surface experience.
If your project requires a specific touch, thickness, appearance, or coating performance, our team can help you select the right film specification.
Looking for High-End BOPP Touch Film?
A premium touch surface starts with a carefully controlled coating process. If you are looking for BOPP touch film with a refined surface feel, SZ Film Factory can provide a high-end solution based on your application and specifications.
Contact us at info@szfilmfactory.com to request a quotation, or contact us to discuss your BOPP touch film requirements.
FAQ About BOPP Touch Film
Is BOPP touch film usually coated once or twice?
BOPP touch film is commonly produced with one oil coating, while SZ Film Factory uses two oil coating passes for our high-end touch film. The second coating is part of our production approach for achieving a more refined and consistent surface feel.
Why does SZ Film Factory use two oil coatings?
The two-pass coating process gives us more control over the final surface. It allows us to better manage coating uniformity, touch, and surface appearance for high-end BOPP touch film.
Does two oil coating always mean better BOPP touch film?
Not necessarily, because final film quality depends on the complete production process. Coating formulation, coating weight, drying conditions, base film quality, and process control all affect the final result. At SZ Film Factory, the two-pass process is used as part of our high-end production system.
What applications can use BOPP touch film?
BOPP touch film is suitable for applications that need a soft and premium surface feel. Common applications include premium packaging, labels, printed materials, and other products where appearance and touch are important.
Can SZ Film Factory customize BOPP touch film?
Yes, film specifications can be discussed according to the application. Requirements such as thickness, surface feel, appearance, and other performance properties can be considered when selecting the appropriate film solution.
How can I get a quotation for BOPP touch film?
You can contact SZ Film Factory directly to discuss your requirements and request a quotation. Email us at info@szfilmfactory.com or contact us through the inquiry form.