[Wuhan pneumonia] K Kwong can't bear to face the suffering of Hong Kong people

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Written by: McCain

2020-02-28 12:13

Complete the seemingly impossible dream on the 20th. Dr. K Kwong, a doctor of chemistry, announced earlier that he has successfully developed a respirable mask "HK MASK". In an exclusive interview with "Hong Kong 01", he said that from the founding of the filter element factory to the successful launch of production sharing for 20 days, he especially thanked the manufacturers for their cooperation and shut down to produce the filter element wholeheartedly, so that the masks could be made entirely in Hong Kong.

Although K Kwong reduced about 6 kilograms in the process and slept only an average of more than an hour a day, he did not feel hard because he could not bear the need for Hong Kong people to wear masks and sterilize supplies. "The person in charge should explain and even thank him. She can't help Hong Kong people. "He firmly believes that Hong Kong people can save themselves. The production team is all volunteers." Hong Kong people won't die. "

K Kwong of Mount Shishan was originally a lecturer in chemistry, but he couldn't bear the fact that Hong Kong people had to throw masks around to produce HK Mask. (Photo by Liang Pengwei)

Only 20 days from R & D to production

K Kwong is a former lecturer in chemistry at the Chinese University of China. From the anti-revision movement to become a celebrity for explaining tear gas bombs to pneumonia, everyone has asked him about the chemical composition of anti-epidemic products online.

Earlier last week, K Kwong announced the successful development of Hong Kong's first replaceable filter mask "HK MASK". It turned out that he contacted a local engineering company, Lotte Purification, and the entire cooperation to R & D and production took only 20 days. "We are the first team capable of producing masks." K Kwong said proudly, but in order to plan he cut about 6 kilograms, only sleeping more than an hour on average every day.

Talking about why face masks are being developed, K Kwong, a member of the silver-haired family, laments that there are elderly people who want to reuse masks. "I feel miserable. Why do Hong Kong people have to live like this?" Is the government responsible? He responded: "The person in charge should explain or even apologize. She can't help Hong Kong people."

K Kwong announced last week that the team successfully developed a cloth mask with a replaceable filter element, called HK Mask. (Profile picture / Photo by Huang Shuhui)

Chief Executive Lin Zhengyue once said that masks need to be saved, so masks were not worn in many press conferences. (Photo / Photo by Ou Jiale)

Mask filter layer meltblown cloth 10 times price increase to eliminate the idea of ​​setting up production lines

There is a shortage of masks in Hong Kong, and some businessmen set up their own production lines. Why do you think of producing filter cartridges? It turned out that K Kwong had begun to produce local masks in late December last year, but the appropriate machinery and raw materials depended on foreign resources. Among them, the filter layer of the mask, that is, the raw material of the meltblown cloth, due to the large increase in demand around the world and the regulatory relationship in the Mainland, the public price has increased from 10 thousand yuan a ton in December last year to 10 million yuan in recent months. One ton.

Under normal life, the price of each mask is only a few tadpoles, and the profit of the manufacturer is not high, so few Hong Kong manufacturers are willing to do it. K Kwong admits that it is not feasible to set up a production line. "Each surgical mask is increased from 2 yuan to 20 yuan? How can anyone buy it? Our purpose is to hope that the grassroots can also use masks."

He did not give up trying to find a solution, but found that although Hong Kong does not produce meltblown fabrics, it does have electrospinning technology. "This technology is arguably unique in Hong Kong, and not in Southeast Asia," he said.

Cai Zile, project director of Lotte Purification Engineering, has Nanofiber successfully developed. (Photo by Liang Pengwei)

Hong Kong has electrostatic spinning technology with a filtration efficiency of 99%

Electrospinning, which uses electric charges to extract micron to nanofibers from the liquid, Lotte Purification Engineering Company uses this technology to produce cold air filters for air filtration in hospitals and food factories. K Kwong believes that if only the filter element of the mask is produced, the cost can be reduced by at least one third, so he immediately contacted the other party and agreed to it.

The filter element produced by electrospinning technology can filter 99 micron particles with an efficiency of 99%. Lotte Purification originally quoted 4 yuan per filter element, but K Kwong insisted that the grassroots can afford it, and required that the cost be reduced to 2 yuan. "I told them that as long as 90% of filtration is the most important thing is price." Because about 90% of filtration efficiency has reached medical grade ASTM Level 1.

K Kwong thanked Lotte Purification for its cooperation. In order to provide filter elements, the production line needs to be reset. "They sacrifice a lot, and the whole plant only does this (mask mask element), and they do it wholeheartedly." Mircofiber, Nanofiber, the two types of filter elements cooperated by the two parties The efficiency reached 82.54% and 86% (deviation value +/- 5%), the former has been put into production, and the latter produced at least 2 million yuan in mid-March.

HK MASK is made of outer and inner cloth masks with filter elements. Users can use cloth masks repeatedly in addition to the filter elements. (Photo by Liang Pengwei)

The team worked hard for many days, K Kwong said, "Everyone is for the same wish, I hope more Hong Kong people have masks."

Foreign manufacturers are inspired to cooperate in the production of filter elements

Lotte Purification Project Director Cai Zile reiterated that he will only help Hong Kong people through this difficult time and will not continue to produce filter elements in the future. Cloth masks become useless after an epidemic? K Kwong promised not, because foreign manufacturers wanted to participate in the open plan, but he hoped that the first batch of masks would be made entirely in Hong Kong, but did not rule out cooperation in the future. "Everyone is inspired."

In the end, K Kwong sent a message: "Hong Kong people will not die, Hong Kong people are very" sharp "and the speed is fast." In the face of this epidemic, people can save themselves. "The plan has no government sponsorship, but we are the first batch A team capable of producing masks. "More than 20 of the production team are all volunteers," Everyone is really countless (money). "And the first batch of more than 300" HK MASK "will be distributed to the social enterprise" Tangle Huifang " People in need.

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