DUBHEIntelligent Industrial Ecosystem
Through co-extrusion, coating, metallization, corona and surface modification, the film can be added with properties such as heat sealing, anti-fog, barrier, label forming, tape processing, temperature resistance, smoothness and anti-static properties.
Product series are selected based on final function, and specific specifications are determined based on substrate, thickness, treatment surface, heat seal layer, barrier layer and equipment conditions.
Provides stable sealing for automatic packaging, bag making and outer packaging, taking into account transparency, smoothness, printing and high-speed conveying.
Reduce hot and cold changes and water mist condensation in high-humidity environments, keep the inside of the package clearly visible, and combine heat sealing and easy-to-remove functions.
Help protect aroma, flavor and content stability by reducing oxygen, water vapor and light transmission through vacuum aluminum plating or barrier coating.
Developed for printing, labelling, die-cutting and container forming, taking into account transparency, stiffness, dimensional stability, anti-static and surface treatment.
Provides uniform thickness, stable corona, good mechanical strength and glue application adaptability, and is used for pressure-sensitive adhesive and industrial tape processing.
For industrial processing needs such as temperature resistance, release transfer, smooth antistatic, coating, aluminum plating and recyclable structures.
Film performance needs to be matched with packaging equipment, contents, storage environment and subsequent processing, rather than just comparing thickness and unit price.
Confirm the sealing temperature, heat sealing window, heat sealing strength, hot tack and sealing contamination adaptability.
Control haze, light transmittance, gloss, anti-fog effect and surface defects to maintain shelf display.
Set oxygen permeability, moisture permeability, light shading and fragrance retention requirements based on content sensitivity.
Match friction coefficient, static electricity, stiffness, thermal shrinkage, opening and equipment operating speed.
Confirm printing, coating, laminating, aluminizing, labeling, die cutting, slitting and adhesive attachment.
Functionality can be achieved through coextruded layers, surface coatings or vacuum metallization, and more than two properties can be combined in the same product.
One side is used for printing, coating or lamination, and the other side provides heat sealing performance, suitable for bag making and automatic packaging with clear directions.
Both sides can be sealed, and it is suitable for pillow, vertical, horizontal and multi-side sealing packaging, reducing restrictions on sealing directions.
The combination of surface anti-fog function and heat sealing layer is used for packaging of fresh fruits, vegetables, flowers and where the hot and cold environment changes significantly.
The metallized layer provides light shielding and barrier, while the base film and heat sealing layer are responsible for processing strength and sealing performance.
Use AC, PVDC, PVA or other functional coatings to improve printing, heat sealing, barrier, smoothness or fragrance retention performance.
Serving molding, transfer, gluing and industrial lamination with low surface energy, temperature resistance, antistatic or corona stabilizing designs.
Products should be qualified based on packaging form, contents, equipment speed, storage conditions and expected shelf life.
Pillow, vertical, horizontal and special-shaped packaging, choose single or double-sided heat sealing, low temperature heat sealing and smooth grade.
Cover films for fruits, vegetables, mushrooms, flowers, cold fresh foods and trays, focusing on anti-fog, low-temperature sealing and easy-to-remove properties.
Coffee, nuts, tea, puffed food, medicines and daily chemicals, pay attention to oxygen, water vapor, light and flavor maintenance.
Beverage surround labels, self-adhesive surface materials and in-mold labels, focusing on stiffness, dimensional stability, labeling speed and die-cutting performance.
Sealing tape, electronic tape and industrial tape, focusing on surface treatment, glue adhesion, slitting and winding stability.
Temperature-resistant printing layer, aluminized base film, release transfer, PCR film and functional materials with full PP/full PE structure.
Different functions have different evaluation methods. During inquiry and testing, priority should be given to providing indicators that truly determine the effectiveness of use.
| Products | Main materials | core indicators | Common processing | Typical applications | Selection reminder |
|---|---|---|---|---|---|
| Heat sealing film | BOPP / CPP / Coated BOPP | Sealing temperature, heat sealing strength, hot adhesion, COF, anti-adhesion | Printing, bag making, automatic packaging | Food, daily chemicals, paper towels, straws, outer packaging | Heat sealing strength must also indicate temperature, pressure and time. |
| Anti-fog film | BOPP / BOPET / CPP | Cold fog, hot fog, persistence, light transmission, heat sealing, easy to peel off | Bag making, pallet covering film, hot cutting | Fruits and vegetables, flowers, mushrooms, cold fresh food, cooked food | Different temperature, humidity and contents will affect the anti-fog performance. |
| Aluminum plating and barrier film | VMBOPP / VMPET / VMCPP / Coated Film | OTR, WVTR, optical density, aluminum layer adhesion, composite strength | Printing, dry lamination, solvent-free lamination, bag making | Coffee, tea, nuts, snacks, medicines | Barrier data must indicate test temperature and humidity conditions. |
| label film | BOPP / BOPET / Foamed PP | Stiffness, heat shrinkage, surface tension, antistatic, whiteness/transparency | Printing, labeling, die cutting, adhesive backing | Surround labels, self-adhesive labels, in-mold labels | Printing equipment, labeling speed and container material need to be matched. |
| Tape Base Film | BOPP / BOPET / Special PP | Uniform thickness, dyne retention, stretching, elongation, winding | Gluing, slitting, rewinding, die-cutting | Sealing, electronic, industrial and cleaning tapes | The adhesive system and coating curing conditions need to be confirmed in advance. |
| Industrial functional film | BOPP / BOPET / BOPE / Coated Film | Temperature resistance, peeling, static electricity, COF, surface energy, recyclable structure | Transfer, molding, aluminizing, coating, lamination | Industrial processing, temperature-resistant packaging, single material packaging | Final performance typically needs to be verified on the customer's process line. |
The following data are used for preliminary selection and are derived from a representative range of available product literature. Formal orders are subject to specific model TDS, confirmed samples, technical agreement and batch COA.
| project | Typical reference | technical significance | Common testing basis |
|---|---|---|---|
| thickness | 14–50 μm | Select based on packaging form, stiffness and equipment speed | GB/T 6672 |
| structure | Single sided/double sided/matt/low temperature heat sealing | Determine the printing surface, sealing direction and packaging form | Product Technology Agreement |
| seal initiation temperature | About 95°C, 105°C or developed as required | Lower sealing temperature helps increase packaging speed and reduces thermal impact | Agreed test method |
| heat-seal strength | Representative value is about 3–5 N/15mm; high-strength type can be higher | The heat sealing temperature, pressure, time and cooling conditions must also be indicated. | QB/T 2358 |
| haze | Transparent type about 1.4%–2.0% | Impact on transparent display of packaging | GB/T 2410 |
| gloss | Transparent type about 90%–93% | Influence shelf visual and printing performance | GB/T 8807 |
| COF | Customized according to normal, high slip or anti-slip grade | Affects machine running, opening, overprinting and positioning | GB/T 10006-2021 |
| project | Typical reference | technical significance | Common testing basis |
|---|---|---|---|
| thickness | BOPP 25–40 μm; BOPET easy-to-remove 17–45 μm | Choose from bag making, hot cutting or pallet cover film configurations | GB/T 6672 |
| Anti-fog level | Conventional, high-strength heat sealing, hot-cut, long-lasting and low-temperature types | Need to be confirmed by combining cold mist, hot mist and duration | GB/T 31726-2015 |
| haze | The representative value of BOPP is about 1.6%–2.2% | Affects the visibility of fresh food packaging | GB/T 2410 |
| gloss | BOPP representative value is about 86%–91% | Impact on shelf display | GB/T 8807 |
| heat-seal strength | Designed in regular, high-strength or easy-to-release grades | Anti-fog films usually also serve as sealing or covering films. | QB/T 2358 / Technical Agreement |
| Easy to peel strength | BOPET tray cover film matches APET, CPET and PVC | Determine opening feel and seal integrity | Customer structure testing |
| processing surface | Single or double sided corona optional | For printing, laminating or coating attachment | GB/T 14216 |
| project | Typical reference | technical significance | Common testing basis |
|---|---|---|---|
| thickness | VMBOPP commonly used 15–20 μm | Taking into account barrier, stiffness, compounding and cost | GB/T 6672 |
| Optical density | Representative value is approximately O.D. 2.0 | Reflects the uniformity of metallization shading and coating | BB/T 0030-2019 |
| aluminum adhesion | Representative value is about 2.5 N/15mm | Affects the stability of compounding, peeling and subsequent processing | Product standards or technical protocols |
| Oxygen transmission rate | Ordinary, high barrier and ultra-high barrier options are available | The lower the value, the higher the oxygen barrier performance | GB/T 1038.1-2022 / GB/T 19789-2021 |
| water vapor transmission rate | Represents high barrier level up to ≤0.2–0.5 g/(m²·24h) | For evaluation of moisture resistance and shelf life protection | GB/T 1037-2021 / GB/T 26253 |
| heat-seal strength | Representative value is about 3–5 N/15mm | Used for direct heat sealing or bag making of aluminized finished film | QB/T 2358 |
| surface tension | Common ≥38 mN/m | Affects printing, lamination and coating adhesion | GB/T 14216 |
| project | Typical reference | technical significance | Common testing basis |
|---|---|---|---|
| thickness | Surround label approx. 30–40 μm; self-adhesive base film approx. 30–90 μm; tape base film approx. 23–50 μm | Determine stiffness, die cutting, labeling and gluing processes | GB/T 6672 |
| Surface treatment | Single or double sided corona | Corresponds to printing, coating, adhesive and laminate surfaces | GB/T 14216 |
| tensile strength | Confirm by material and processing speed | Affects the stability of overprinting, die-cutting, labeling and gluing | GB/T 1040.3 |
| thermal shrinkage | Control according to labeling and drying tunnel conditions | Too high may cause label deformation or curling | Product standards or technical protocols |
| COF | The inside and outside can be customized separately | Affects machine running, labeling, coating and winding | GB/T 10006-2021 |
| Static electricity and winding | By device speed and environment settings | Affects adsorption, overprinting, die-cutting and winding uniformity | Customer process testing |
| Appearance | Transparent, smooth, low crystal point, no obvious scratches | Regarding the finished appearance of labels and tapes | QB/T 2666 or technical agreement |
| project | Typical reference | technical significance | Common testing basis |
|---|---|---|---|
| Temperature resistant BOPP thickness | 18–28 μm | Suitable for heat-resistant printed layers, coatings and full PP structures | GB/T 10003/Technical Agreement |
| Temperature resistance range | Representative products evaluated for shrinkage at 140–150°C | Pay attention to dimensional stability and composite adaptability after high temperature | Agreed heat shrinkage method |
| High slip/antistatic | Friction coefficient and static electricity level are designed according to equipment speed | For high-speed packaging, labeling and coating processes | GB/T 10006-2021 |
| Detachment/transfer | Low surface energy, controlled peeling and temperature resistance | For molding, foil stamping, transfer, release and lamination | Customer process methods |
| Coated barrier film | AC, PVDC, PVA and other structures are optional | Provide printing, heat sealing, oxygen barrier, moisture barrier and fragrance retention | GB/T 31105、BB/T 0012、GB/T 26691 |
| PCR / recyclable structures | The proportion of recycled materials and single material structure are confirmed by project | For non-food direct contact or regulatory confirmed sustainable packaging | Certification documents and customer technical agreement |
| surface tension | Set according to printing, coating or aluminum plating requirements | Related to coating and adhesive adhesion | GB/T 14216 |
Standard status verification date: 2026-07-12. Before product development and contract signing, the applicable standards and latest status should be reconfirmed based on the specific use.
Product standards, test methods and end-use compliance need to be confirmed separately. When used in food contact, pharmaceutical packaging, children's products, electronics and electrical, outdoor environments or high temperature processing, corresponding migration, hygiene, barrier, weather resistance, electrical or environmental compliance tests should be added based on the complete composite structure, contents and usage conditions.
Starting from the problem that the customer really needs to solve before determining the materials, structure and parameters can significantly reduce the number of testing rounds.
Heat sealing, anti-fog, barrier, label, tape and industrial functions can be selected independently or combined in the same film.