Technology | HEWEI

Everything You Need to Know About Polyurethane (PU) Technology

The PU seat industry began with the invention of polyurethane (PU) materials in the 1930s. After World War II, it gradually shifted from military to civilian use. In the 1950s, with the rise of the automobile industry, it was initially used in automobile interiors, seat cushioning and insulation layers. From the 1960s to the 1990s, breakthroughs in foaming technology promoted its rapid popularization in the automotive and furniture fields, but traditional processes had environmental risks.

After 2000, environmental regulations (such as EU REACH) drove the industry to transform to water-based PU and low VOC, and the PU industry subsequently entered an explosive period.

Industry focuses on sustainable development

With policy support and driven by market demand, China's competition has become increasingly fierce. In recent years, the industry has focused on sustainable development and leveraged the growth of new energy vehicles and emerging markets, continuing to evolve towards high performance, greening, and intelligent integration. Innovative products such as smart PU coated fabrics continue to emerge, making it an engine for the development and growth of emerging fields. Therefore, the fact that PU material products have been developed and used for hundreds of years proves that they have irreplaceable value, and their environmental protection share continues to rise.

our pu Technology

HEWEI 2.0 Polyurethane (PU) Technology

2005

HEWEI was established

Heshan Hewei Hardware & Plastic Co., Ltd. was established in 2005. At the beginning, the company used new polymer materials PU (Note: polyurethane foaming molding preparation technology) and combined hardware processing technology to design, develop and produce various PU hardware office furniture accessories and car seat headrests as the main products in the market. It mainly sells customer group accessories, public PU waiting chairs, high-end office chair cushions and PU hardware armrest accessories.

2008

Company name change

The company was renamed Heshan HEWEI Technology Development Co., Ltd. in 2008. The registered capital increased from RMB 1 million in the early days of its establishment to RMB 5 million in 2014.

2011

Upgrading and transformation

In 2011, it began to focus on upgrading and transformation, re-planning the business positioning of products, and gradually innovating the development, design and production of PU hardware accessories and PU chair finished products.

2011.12

The first generation of products was born

At the end of the 2011, the company first developed and designed the first generation of Hewei (Hewei product numbers are 034PU series public waiting chairs and 068 series airport waiting series) and continued to develop and design various series of products of the same type.

2012.10

Participate in the Shanghai exhibition

In October 2012, it officially participated in the Shanghai Exhibition to promote the PU waiting chair pioneered by Hewei. And the products are exported to more than 80 countries and regions around the world, and are deeply loved by many customers and the international market, and have a certain influence in the global public seat market.

2005

2008

2011

2011.12

2012.10

high-tech public seats with its exclusive PU coating technology

HEWEI Technology Development Co., Ltd. has continuously launched beautiful and high-tech public seats with its exclusive PU coating technology.

Technical advantages

Advantage of HEWEI 2.0 Polyurethane (PU) Technology

Comfortability

HEWEI PU material has excellent flexibility and resilience, can perfectly fit the human body curve, and is not easy to deform after long-term use. It effectively relieves fatigue caused by long-term sitting and provides users with a comfortable sitting experience.

Long life

Ultra log life (Durable, 8 years of use, service life than PU/PVC leather-), due to advanced production from teh western RlM technology to finish by molding injection. Sponge core + 2mm leather on the surface is foamed in one piece.

Excellent stain resistance

The surface of the protective film has been specially treated to have good hydrophobicity and stain resistance. Stains are difficult to penetrate and adhere to. When cleaning, just wipe it lightly with a damp cloth to easily remove it, which greatly reduces the difficulty and frequency of cleaning and keeps the chair clean and tidy.

Unique formula

Whether it is a waiting area with high-intensity use or a laboratory with strict requirements on material stability, we can flexibly adjust the PU formula according to customer needs, accurately control the tension and density, and tailor-make chairs that fit the scene to achieve the best balance of durability, comfort and function.

Stable weather resistance

Whether in a dry indoor environment, or occasionally exposed to moisture or even under different temperature changes, Hewei polyurethane transparent protective film can maintain stable performance. It will not deform, discolor or lose viscosity due to environmental factors, will not become soft and fall off in high temperature environments, and will not become brittle and crack in low temperature environments, always providing reliable protection for the chair.

Advanced flame retardant technology

Adopting advanced CA117 flame retardant PU formula, whether it is a waiting area with dense personnel and high mobility, or a laboratory environment storing a large number of experimental equipment and chemical reagents, it can build a reliable safety line for users with its excellent flame retardant performance.

Data-Driven Insights

Key Advantages of Polyurethane Technology in Lab Chairs

Characteristic	Data Withdrawal	Illustrate
High durability	● Dynamic fatigue test: 150,000 times ● Service life: more than 10 years	More durable than ordinary materials. (20,000 cycles, more than 10 years lifespan)
Chemical resistance	● Chemical resistance: performance retention rate 60% ● Corrosion test: Slight corrosion	It can resist acids, alkalis, solvents and other chemicals for a short time and is suitable for laboratory environments.
Easy to clean [coating treatment]	● Antibacterial rate (after adding antibacterial agent): 99% ● Reduce cleaning time by 50%	Smooth surface, stains are not easy to penetrate, easy to clean.
Environmentally friendly recyclability	● Recyclability: 80%	Comply with environmental standards and support sustainable development.
Temperature adaptability	● Temperature range: -30℃～100℃ ● Thermal deformation rate: <1%	Stable performance in extreme temperatures, suitable for a variety of environments.
Cost efficiency	● Maintenance rate: 50% lower than ordinary materials	Higher initial cost, but long life and low maintenance costs.

Professional Certification

Our SGS Certifictions and Innovation Patents

SGS Certifictions

As the world's leading inspection, identification, testing and certification organization, SGS's certification is highly authoritative. After strict testing by SGS, the Polyurethane Clear Protective Film technology has excellent performance in antibacterial properties, wear resistance, temperature resistance, transparency retention and other aspects, which fully proves the reliability and advancement of the technology.

HEWEI polyurethane transparent protective film uses advanced polyurethane materials, which have a unique molecular structure and give the protective film many excellent properties. The high strength and flexibility of polyurethane materials enable it to effectively resist various external impacts. At the same time, it also has excellent wear resistance, which can maintain the integrity of the protective film for a long time and provide lasting protection for the protected objects.

Innovation Patents

The antibacterial polyurethane cushion material independently developed by Hewei Technology officially passed the national invention patent certification on August 28, 2018, and the patent number is CN104892893B. This invention patent certificate was issued by the State Intellectual Property Office of the People's Republic of China. It is not only a high recognition of the innovative wisdom of Hewei scientific research team, but also a strong proof of Hewei deep technical background in the field of material research and development. This patent achievement makes Hewei stand out in the cushion material market and establishes its leading position in technology.

The test results show that the cushion material has a significant inhibitory effect on common pathogens such as Klebsiella pneumoniae, Escherichia coli, and Staphylococcus aureus. It can be clearly seen from the comparative test chart that the growth of bacteria in the sample area containing antibacterial agents is effectively controlled, while the areas without antibacterial agents are multiplied by bacteria. This fully shows that the use of Hewei antibacterial polyurethane cushion materials can effectively reduce bacterial growth and provide users with a healthier and cleaner sitting experience.