Introduction
PU transparent film is a thin, clear film made from polyurethane (PU), offering a combination of flexibility, durability, and transparency. With strong resistance to water, chemicals, and abrasion, this film is widely used in applications requiring both protection and visibility, such as medical dressings, screen protectors, labels, and laminations. Its elasticity allows it to conform seamlessly to various surfaces without tearing or losing adhesion.
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Product description |
Pu-Transparent-Film |
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Use |
Raincoa,Umbrella,Tents,Luggage,Ice bag,Curtain,Apron,Table cover,etc |
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Width |
1.37-1.5m |
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Package way |
Polybag+Woven bag |
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Delivery time |
25-30days |
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Payment term |
30% deposit before production,70% balance before shipment.or L/C 30days |
Features
Transparency
PU transparent film achieves its high optical clarity and light transmittance (typically over 90%) due to the uniform, non-crystalline structure of polyurethane. This structure minimizes scattering and absorption of light, allowing most visible light to pass through without distortion.
Durability
PU transparent film exhibits high tear and puncture resistance due to the strong polymeric bonds in polyurethane, which contribute to its durability. With tensile strength often ranging from 20-40 MPa, it can withstand demanding conditions.
Chemical Resistance
The film's chemical structure gives it excellent resistance to various chemicals, oils, and solvents, preventing degradation when exposed to harsh substances. This property makes it suitable for industrial settings where exposure to chemicals can be common, withstanding substances like ethanol and mild acids without compromising performance.
Breathability
Certain PU transparent films are engineered with microporous structures, allowing water vapor to escape while blocking liquid water. With a moisture vapor transmission rate (MVTR) of 500-2000 g/m²/24 hrs, these films are particularly beneficial for wound dressings and skin-contact applications.
Self-Adhesive Options
PU transparent film is available with a self-adhesive backing that typically achieves a peel strength of 2-5 N/25 mm, allowing for reliable adhesion on smooth surfaces without additional adhesives.
Applications
Screen Protectors
PU transparent film is widely used in electronics to protect screens from scratches, dust, and minor impacts. It preserves high visibility and maintains touch sensitivity.
Medical Dressings
In wound care, PU transparent film serves as a breathable, protective barrier that allows easy monitoring of the healing process. It protects wounds from contaminants and moisture while promoting a sterile environment for faster recovery.
Automotive
In the automotive industry, PU transparent film is used as a protective coating for vehicle surfaces. It helps guard against scratches, chips, and UV damage, without obstructing the underlying paint or finish, ensuring both protection and aesthetic integrity.
Textile and Clothing
PU transparent film is incorporated into the production of protective clothing and accessories, offering water resistance, flexibility, and comfort.
FAQs
How often should I change transparent film dressing?
The average time between transparent film dressings is 3 to 5 days, although the dressing may be left in place up to 7 days. The frequency of change can vary based upon manufacturer recommendations.
Can you shower with transparent film dressing?
Tegaderm™ Transparent Film Dressings act as a barrier to protect the I.V. site or wound from external contaminants such as bacteria, virusesi, blood and body fluids. Patients may bathe, shower or swim, if the dressing is completely sealed around the catheter or wound.
Can you overlap transparent dressing?
Overlap the remaining half of the dressing on top of the first, avoiding wrinkles. The extent of the overlap will depend on the contour of the area being dressed. Remove the remaining frame and firmly smooth the dressing from the center outward to enhance adhesion.
Is transparent film dressing good for tattoos?
You may leave transparent dressing on tattoo for 2-5 days, as long as you don't notice any irritation. Some fluid is beneficial to healing. If excess fluid collects under bandage to the point where it may burst, remove, clean, and apply a new bandage.
How long can transparent dressing stay on?
It is designed to be applied directly over clean, dry skin or wounds, providing a protective barrier that adheres securely until new skin has formed over the wound surface or up to seven days. During this time, the film allows the wound to breathe, promoting moisture balance while shielding it from external contaminants, bacteria, and water. This helps create an optimal healing environment by preventing infection and reducing the risk of scabbing or irritation. The transparent nature of the film enables easy monitoring of the wound's progress without the need for removal or disturbing the healing process. Additionally, it is designed to be flexible and conform to body contours, ensuring comfort and minimizing disruption to daily activities.
What type of wound is a transparent film dressing used for?
Transparent films may be used as a primary or secondary dressing to prevent and manage Stage I pressure ulcers, partial thickness wounds with little or no exudate, and wounds with necrotic tissue or slough.
What is PU film?
Polyurethane film tapes, also known as PU films are versatile adhesive material used in medical, industrial, automotive, and food industry applications. The polyurethane material provides a level of resistance to moisture, chemicals, and abrasions.
What are the key advantages of using PU transparent film over PVC or other plastic films?
PU transparent film offers superior flexibility, chemical resistance, and durability compared to PVC. It is also more environmentally friendly, being free from plasticizers and non-toxic, while maintaining higher tensile strength and tear resistance. PU film's ability to conform to irregular surfaces without cracking or losing its integrity makes it a preferred choice for applications requiring both durability and transparency.
Is PU transparent film recyclable?
PU transparent film is recyclable and considered more environmentally friendly than other plastic films. It is free from plasticizers, which are harmful to the environment and human health. When properly disposed of, it can be recycled into other PU-based products, contributing to a circular economy. However, recycling infrastructure for PU films may vary by region.
What is the chemical resistance of PU transparent film?
PU transparent film exhibits excellent chemical resistance to oils, solvents, and various industrial chemicals, thanks to its stable molecular structure. It can withstand exposure to substances like grease, mild acids, and alcohols without degrading. This makes it highly suitable for industrial applications where contact with harsh chemicals is frequent. However, the film may not be resistant to stronger acids or bases without specific modifications.