Cross Membrane
Your Professional Cross Membrane Supplier
Shandong Xinda Packing Technology Co., Ltd. was established in 1999 and is located in Jining, Shandong Province—known as "the hometown of Confucius and Mencius, and the land of etiquette."
The company is dedicated to the research, development, production, and sales of environmentally friendly polyolefin (POF) heat-shrinkable film, PE film, thermal shrink film, soft film, and specialized packaging for meat, cheese, poultry, and tuna. We offer seven-layer high-barrier heat shrink film, vacuum shrink film, and printing services for the above products.
Why choose us
Our Certification
The company has passed the ISO 9001:2015 international quality management system certification. Since its establishment, we have introduced advanced international technology and equipment, adopted a scientific and standardized management system, enforced strict quality control, and selected high-quality raw materials. Our products and printing equipment have passed SGS testing and other domestic and international certifications.
Sales Market
As a professional manufacturer in the packaging film industry, our products have successfully entered over 30 countries and regions. We have established a stable sales network in key markets such as North America, Europe, and Southeast Asia.
Our Service
We provide 24-hour technical consultation, free sample support, and customized solutions to help you choose the most suitable packaging film materials (POF, PE, etc.) and specifications.
It is a high-strength multi-layer composite film,It is made of HDPE as the base material, adding plasticizer, plasticizer, stabilizer, antioxidant, UV absorber, toughener and other additives through multi-layer co-extrusion blow molding into embryos, and then by multiple pull Stretching, then rotary cutting into a film substrate with a horizontal and vertical distribution of 45°, and finally through cross-compositing.
Due to its cross-stacking structure is different from ordinary single-layer or multi-layer film, it has the thermal stability, dimensional stability, two-way tear resistance, two-way uniform tension and high elongation which are not available in traditional films.
Parameter
|
NO. |
Item |
Performance |
||
|
SDM-30 |
SDM-60 |
|||
|
1 |
Tensile Property |
Tensile Strength/Mpa ≥ |
30 |
50 |
|
MaxF/(N/50mm) ≥ |
200 |
300 |
||
|
Elongation as MaxF/% ≥ |
200 |
|||
|
Elongation at break/% ≥ |
250 |
|||
|
2 |
Sample number of no broken tested by free-falling dart method ≥ |
8 |
||
|
3 |
Tear Strength(Nail Shank)/N ≥ |
60 |
||
|
4 |
Angle Tear Strength/N ≥ |
25 |
||
|
5 |
Thermal Stability |
120 ºC,10min, No bulb, No deformation |
||
|
6 |
Cryogenic Flexibility ºC |
-35ºC, No fissure, No delamination |
||
|
7 |
Thermal Ageing |
Appearance |
No bulb, No deformation |
|
|
Subsequent MaxF/% ≥ |
80 |
|||
|
Elongation at MaxF/% ≥ |
200 |
|||
|
Elongation at break/% ≥ |
200 |
|||
|
8 |
Artificial Weathering |
Appearance |
No bulb, No deformation |
|
|
Subsequent MaxF/% ≥ |
70 |
|||
|
Elongation at MaxF/% ≥ |
180 |
|||
|
Elongation at break/% ≥ |
180 |
|||
- Excellent dimensional stability. It can fix its own size without deformation.
- Two-way tear resistance. The vertical and horizontal mesh structure effectively solves the phenomenon of easy wrinkling and drumming after construction.
- Resistant to UV radiation. ultraviolet radiation, chemical corrosion, high and low temperature, even if exposed for a long time after construction, it will not affect the appearance quality, and it is resistant to aging for more than ten years.
- High strength and high elongation performance. The self-adhesive waterproof membrane made of the successfully developed strong cross film will not deform under high temperature exposure.
- Unique puncture resistance, self-healing and continuous tear resistance and excellent nail water tightness.
Application
Used for engineering waterproof , such as basement, subway, tunnel, pools, planting roofing, underground garage roof greening and roof garden, etc.
Our Three-Step Process for Manufacturing High-Strength, Durable, and High-Quality Cross-Laminated Film
Extrusion
High-density polyethylene resin (HDPE) is extruded via the blown film process to form a tube.
- The tube is cooled and collapsed into a flat form.
- After the tube is flattened, it is fed into a multi-stage orienter. During orientation, the film is stretched in the machine direction, aligning the polyethylene molecules. The resulting film becomes very strong in the machine direction.
- The oriented tube is then annealed and wound up. The annealing step removes stress in the film and controls shrinkage. The annealed film retains its high machine-direction (MD) strength.
Spiral Cutting
The next step in the process is spiral cutting.
- In this step, the flattened, oriented tube is unrolled, rotated, and re-inflated to form a round tube.
- As the film is fed forward and rotated, it is cut on a bias (approximately 45 degrees) and wound up.
- The orientation of the spiral-cut film is now at a 45-degree angle to the machine direction.
Cross Lamination
Finished spiral-cut rolls are mounted on corresponding spindles.
- The films are fed through an extruder and laminated together, with their orientation directions crossed at 90 degrees. A layer of polyethylene is used to bond the films.
- After lamination, the film is surface-treated to enhance ink adhesion and support graphic applications.
- Finally, the film is wound onto a core to the specified yardage.
We're well-known as one of the leading cross membrane enterprises in China. If you're going to wholesale discount cross membrane, welcome to get quotation and free sample from our factory. Also, customized service is available.
Cross film used in military engineering projects, cross membrane, Military Engineering Cross Film