Health Textiles And Medical Protection Textiles Have No Antiviral And Antibacterial Function

In 2016, he discovered the antibacterial property of polyhydroxy ester of textile, which was the first time for the team to develop a broad spectrum of antibacterial properties.

 

In recent years, China, the United States, Germany, Japan and other countries occupy a dominant position in the antibacterial textile market. The world's largest producer of antibacterial textiles is located in the Asia Pacific region. The main producers of antibacterial textiles are unitika Trading Co., Ltd., birlacril, JINDA Nanotechnology (Xiamen) Co., Ltd., surgicotfab textiles PVT. Ltd., sanitized AG.

The global market size of antibacterial textiles will reach US $9.468 billion in 2019 and will reach US $12.313 billion by 2024, with a CAGR of 5.4%. In the application of antibacterial textiles, health care industry is gradually gaining a leading position. By the end of August 2020, the number of medical and health institutions in China has reached 1.02 million. The number of hospitals increased from 20000 in 2009 to 35000 in 2020, including 12000 public hospitals and 23000 private hospitals. Thus, the market space of antibacterial textiles is huge.

The existing health textiles and medical protection textiles are mainly physical barriers to viruses and bacteria, and have no effective antiviral and antibacterial function. Most antibacterial textiles obtain their functions by adding antibacterial agents in fiber production or fabric finishing. There are some problems such as potential harm to the environment (inorganic antibacterial), potential toxicity to human body (organic antibacterial), and unstable effect (natural antibacterial). Health care industry needs a kind of safe, efficient and stable antibacterial medical and health textiles.

In 2016, Professor Tao Xiaoming's team discovered for the first time that bio based broad-spectrum antibacterial material, polyhydroxyalkanoate blended fiber (gramineous) and its textiles have intrinsic and durable broad-spectrum antibacterial and antiviral functions, which open up a new direction for the development of antibacterial textiles.

(the international standard ISO 18184:2019 (E) is the first international standard for antibacterial fabrics. Grade 3 (99.9%) or above excellent; Grades 2 (99%) to 3 are good.)

Hydroxybutyrate (PHB), the antibacterial active component of PHBV / PLA, can effectively destroy the cell wall of bacteria and other microorganisms and the cell membrane of viruses, so as to release the internal substances, resulting in metabolic imbalance, so as to inhibit the growth of bacteria and inactivate the virus, so as to achieve the effect of antibacterial and antiviral.

The results showed that the antibacterial rates of gramineous fiber against Staphylococcus aureus, pneumoniae and Candida albicans were more than 99.99% and 99.97% respectively; The inactivation rate of H1N1 and H3N2 viruses was more than 99.99%, and the inactivation index was more than 4.0.

Scanning electron microscopy showed that the bacterial biofilm was destroyed and the cell wall was damaged and perforated. Denatured protein overflows.

 

(s-phb destroys biofilm)

 

No irritation and toxicity

 

The irritation test showed that PHB oligomer had no irritation and toxicity to skin and could be used in health care textiles.

 

Effect of s-phb on skin tissue of BALB / c mice

 

(Fig. B skin photos of nude mice treated with s-phb for 72 h)

 

 

Phbv-pla can be degraded into water and carbon dioxide, and there is no residual pollutants. At the same time, the power consumption of fiber dyeing process is 32% less than that of polyester dyeing process.

(comparison of pet and PHBV / PLA dyeing processes)

 

 

In 2019, gramineous fiber medical textiles will be applied in the Affiliated Hospital of Hong Kong Polytechnic University. As a result, Nanjing Hesu times antibacterial materials Co., Ltd., which is responsible for textile manufacturing, has become the only supplier of antibacterial and antiviral medical products for the project of "inherent textiles for reducing hospital acquired infections" in Hong Kong.

 

(antibacterial and antiviral medical products)

 

Nanjing Hesu times antibacterial material technology Co., Ltd. is a national high-tech enterprise. Under the guidance of Professor Tao Xiaoming, we have innovatively added PHBV (polyhydroxybutyrate) antibacterial masterbatch into PLA, pet and other textiles, and developed "Hesu" and "hehe" series products, which endow textiles with insoluble antibacterial and antiviral functions, higher safety and stability, and obvious odor elimination effect, which can be widely used in medical supplies, textile clothing, and other fields Home textile products, maternal and child care, female products, personal protection and other fields.

 

Antibacterial baby fabric  

Antibacterial, comfortable and skin care are the future development trend of infant and child fabrics, and also the hot spot of development and attention of related enterprises. Coton / PHBV / PLA 70 / 30 knitted infant and child fabric has 87.54% antiviral activity after being tested by the third party authority. And after AAA washing standard, the fabric has the characteristics of softness, delicacy, antibacterial, skin care and other characteristics. Under the condition of ensuring the comfort of infant and child fabrics, the safe and stable antibacterial function is added to effectively take care of the health of infant and child skin.

 

Baby and children's fabric with biological antibacterial function

 

The development trend of antibacterial and comfortable denim fabric is to be healthy in the future. Hesu denim fabric perfectly inherits the high-efficiency antibacterial properties of Hesu fiber, and its anti-virus activity rate reaches 99.94% in H1N1 and H3N2, and 99.19% in poliovirus. For jeans lovers who like to wear but worry about color change after washing frequently, even if they don't wash often, they can effectively resist the invasion of bacteria and viruses.

 

Denim fabric with biological antibacterial function

 

 

Based on the characteristics of green antibacterial, environmental protection and health, a wide range of C-end care products can be developed, such as sanitary napkins, diapers, cotton wipes, wipes, etc. Compared with the main products on the market, in the case of ensuring soft, water absorption and other characteristics, it increases the advantages of antibacterial and effectively improves the quality of the products.

 

 

 

Hesu series fibers can match different textile processes, making the bio based antibacterial properties of yarns and fabrics more stable, more efficient and safer. With the breakthrough and innovation of technologies in various links, more high-quality functional cereal products will be put on the market, which will help to enhance the added value and market competitiveness of traditional products on the market, This is also the original intention and direction of Hesu series fiber product development, so that more families can enjoy high-quality healthy life.

At the same time, as a new type of bio based antibacterial fiber, it is urgent to establish the relationship between the biological, physical, chemical properties, related mechanism and processing performance and technology of this kind of antibacterial and antiviral fiber textiles. The industrial standard system of this kind of bio based durable antibacterial and antiviral products needs to be established.