Function and Requirements of Life Jackets

Life jackets are crucial safety equipment for water activities. Their primary function is to provide enough buoyancy to keep the wearer afloat on the water's surface, helping to prevent drowning accidents.

1.Main Functionalities

•Buoyancy Assurance

-Buoyancy is the basic function of a life jacket. It must provide sufficient buoyancy to support the wearer's weight and ensure they maintain a stable floating position in the water.

-Buoyancy is typically achieved through specialized buoyant materials (such as polyurethane foam, NBR/PVC foam materials, etc.).

-The buoyancy design should consider the needs of different wearers, ensuring an appropriate buoyancy ratio.

•Comfort and Fit

-The life jacket should be ergonomically designed to ensure the wearer can move freely and comfortably without discomfort during water activities.

-Accessories such as adjustment straps and zippers should be simple to adjust, allowing the user to customize the fit according to their body shape and avoid discomfort due to loosening or excessive tightness.

•Durability and Environmental Resistance

-The life jacket must withstand extreme environmental conditions such as saltwater, sun exposure, and humidity.

-It should possess properties like hydrolysis resistance, corrosion resistance, and UV resistance to prolong its lifespan.

-The materials should also have good tear resistance to ensure they are not easily damaged during use.

2.Certification Requirements

To ensure the safety and performance of life jackets, there are various international standards and certification requirements that cover design, manufacturing, material selection, and more. Our company complies with the following certification standards:

•UL-1191 Certification

-UL-1191 is a safety testing standard in the United States for water sports equipment (including life jackets).

-This standard primarily tests buoyant materials, structural design, and durability to ensure the life jacket can effectively protect the wearer in extreme conditions.

•ISO 12402 Series Standards

-ISO 12402-1: Design standards for adult and child life jackets, covering buoyancy requirements, physical tests, and comfort aspects.

-ISO 12402-7: Design and testing requirements for inflatable life jackets, focusing on buoyancy stability and safety performance when inflated.

-These standards include buoyancy tests, tear resistance tests, and hydrolysis resistance tests, ensuring the products meet international safety standards.

Select Nam Liong as a reliable partner to ensure safety standards

Safety Assurance from International Certifications and High Standard Production Processes

1.Rubber Foam Materials (UL-1191 Certified)

•The Sponge Division of Nam Liong Global Cooperation offers a variety of UL-1191 certified rubber foam materials, available in different thicknesses and a wide range of colors. These materials can also be customized based on customer requirements.

•The UL-1191 certification guarantees the durability and safety of the materials, ensuring that their use in life vests meets the highest performance standards. When combined with appropriate supplementary materials, these foams provide sufficient structural strength and buoyancy, ensuring that the wearer receives effective protection in water.

2.UL Certified Buoyancy Materials (NBR/PVC Base)

•Our buoyancy materials are primarily composed of NBR (Nitrile Rubber) and PVC (Polyvinyl Chloride), offering several key advantages: low density, oil resistance, excellent thermal insulation, low water absorption, and superior flexibility.

•These materials are UL certified and designed specifically for high-performance life vest padding. They significantly enhance buoyancy, ensuring that users maintain a stable position in water, increasing their chances of survival, and are adaptable to a wide range of harsh environments.

3.Inflatable Life Jacket Materials (ISO 12402-7 Compliant)

•We provide inflatable life jacket materials made from high-strength nylon that complies with the ISO 12402-7 standard. This standard enforces strict requirements on the design, performance, and safety of life-saving devices.

•These materials have been tested for hydrolysis resistance and exhibit excellent hydrolytic stability, significantly extending their service life and ensuring optimal performance over time. Each batch of materials undergoes rigorous physical testing by quality control units to ensure stability and reliability before shipment.

4.Advanced Production Processes and Quality Control

•Our production process uses the T-DIE lamination process, that integrates TPU (Thermoplastic Polyurethane) melt coating technology to effectively laminate the membrane with fabric. This process not only improves production efficiency but also ensures high consistency in membrane thickness, guaranteeing high product quality and stable production capacity.

•Our factory management system has been certified with ISO 9001 (Quality Management) and ISO 14001 (Environmental Management) certifications. These international certifications reflect our strict adherence to quality control and environmental protection standards. We are committed to providing customers with stable, reliable, and high-quality products that meet international standards.