Hongda Research Institute:Forging the golden key to unlock value for users Interview with An Haojie,Executive Director and General Manager of Hongda Research Institute Co.,Ltd.

Hongda Research Institute Co.,Ltd.is a national high—tech company,and is one of the first small and medium—sized enter—prises in Beijing accredited to be "specialized,refinement,differen—tial,innovation".Additionally,the company boasts a post—doctoral scientific research workstation.Hongda Research Institute provides their users with a range of high—quality spun—bonded,melt—blown,as well as spun—bonded and melt—blown nonwovens equipment us—ing an engineering approach.

Nonwovens are a crucial category of industrial textiles with wide usage in medical care,personal hygiene,filtration,building ma—terials,and other fields.This industry has seen rapid growth in recent years and attracted significant attention.Equipment innovation in the spun—bonded and melt—blown of nonwovens is vital to support the industry's high—quality development.Under the framework of China Hi—Tech Group Corporation’s "three—year action to revitalise textile machinery",Hongda Research Institute has the responsibility of achieving a world—class standard for domestic melting spinning equipment.

“Hongda Research Institute has been deeply established in the spun—bonded and melt—blown nonwovens industry for 20 years.Our unwavering focus is on product design,efficient production organization,engineering service optimization,comprehensive in—ternal strengthening,and persistent pursuit of high—quality develop—ment through technological progress to promote performance.” An Haojie,executive director and general manager of Hongda Research Institute stated.Today,Hongda Research Institute is a scientific and technological enterprise with advanced innovation abilities,holding independent intellectual property rights in the industry,and is at the forefront of spun—bonded and melt—blown nonwovens equipment in China.

Hongda Research Institute constructed the first quality,wide—width melt—blown fabric production line within 14 days subsequent to the outbreak of the pandemic in China.This line was able to sup—ply the requisites in time,exemplifing the speed of Chinese central State—owned enterprise and showcasing its backbone spirit in the industry,and living up to its mission.

In the post—pandemic period,the market has experienced sig—nificant transformations.The spun—bonded and melt—blown sector has cooled down after the previous explosive growth.An Haojie said,"the spun—bonded and melt—blown nonwovens industry is under—going an adjustment phase,with companies seeking profit growth through differentiation and functionalization." Hongda Research Institute closely monitors the evolving needs of users,undertaking extensive research on novel materials,processes,and equipment to promote product innovation of nonwoven machinery.

An Haojie stated that the company now has implemented a"3+1" product business arrangement.He said that their high—speed spun—bonded and melt—blown complete equipment occupies the domestic high—end market and possess comprehensive advantages for entering the international market.This time,their traditional 800—meter spun—bonded and melt—blown high—speed production line is still the main model.

Additionally,two products,"New flexible spunbond calender/air through bonding production line" and the "two—component elastic high loft pilot line" also stand out at this exhibition.The former offers greater flexibility in production and can meet various complex pro—duction requirements."This production line has already commenced operations in Thailand." An Haojie added.

"Two—component elastic high loft pilot line" meets the de—mand for high—performance adult incontinence products in China.The adult incontinence products market requires special features,including high performance and comfort.Previously,this product's production line could only be imported from Japan.Thanks to a se—ries of technical advancements,Hongda Research Institute was able to achieve localization and increase user options.

In addition,due to the adjustment of downstream users' fiber raw material structure,an increasing number of green fibers and novel materials are being utilized for nonwoven production.Hongda Research Institute has conducted technical R&D,developed ground—breaking spun—bonded and melt—blown technology centred on new fiber materials including cellulose,polylactic acid,PBAT and biologi—cal polysaccharide to cater to emerging user demands.

An Haojie stated,“As a Chinese central State—owned enterpris—es,our duty is to create an innovative technological foundation and a contemporary industrial network.Our company has developed high—end spun—bonded and melt—blown equipment through extensive research and development.The engineering business model sets us apart from traditional textile machinery manufacturers.We have as—sembled a team of mechanical,electrical,technical,and engineering technicians.We specialize in providing turnkey projects for complete equipment along with technical services for our customers.”

Nonwoven complete equipment engineering is a typical ex—ample combining software and hardware.Apart from exceptional equipment technology and quality,the streamlined team and high—quality on—site support have established Hongda Research Institute as a reputable name in the industry."Hongda Research Institute de—livers not only the equipment but also a 'golden key' to create value."An Haojie said.

Comments

Huahao Nonwovens Co.,Ltd.is the partner of Hongda Research Institute's first set of 800—meter high—speed spun—bonded and melt—blown production line.Both parties witnessed the birth of domestic high—end spun—bonded and melt—blown equipment.In the future,we will continue to join hands with Hongda Research Institute to write a new chapter of win—win cooperation.

—Huahao Nonwovens Co.,Ltd.

Highlight exhibits:

800m/min high-speed spun-bonded and melt-blown nonwovens compelte equipment and process technology: large-scale production

● Using the linear coat—hanger spinning nozzle and optimiz—ing the manifold angle,coat—hanger melt channel with entire width and uniform distribution was designed.Additionally,the negative pressure drafting technology of gradient uniform side—blowing cool—ing and tangential air supply was developed to ensure uniform and stable cooling crystallization of tow at high speed,effectively con—trolling the fiber fineness.

● A new spinneret and side—blowing box design were imple—mented.This enabled development of high—speed transmission web belt rectification technology,as well as melt—blown web belt protec—tion technology and device,and drafting hot—air control technology and equipment.As a result,800m/min high—quality low—weight SSS,SSMMS,and other spun—bonded and melt—blown nonwovens were produced consistently at high speed.

● The webbing machine was developed to evenly divide fibers and lay a web,reducing fiber strand and defects,improving the web's uniformity and transverse strength.The pre—press roll structure was optimized,and the surface received nano—ceramic treatment to prevent static electricity.The machine also uses auxiliary suction to control the web's flanging and floating,resolving the problem of ultra—thin web winding on the pre—press roll in high—speed production.

● An automated control system was developed for the pro—duction line of spun—bonded and melt—blown nonwovens.Digitaliza—tion and networking were implemented to ensure safe interconnec—tion and interlocking of the entire line.The system enables remote debugging,diagnosis,maintenance,and data sharing.

New flexible spunbond calender/air through bonding production line:Flexible production with multiple processes and raw materials

● The process intelligently combines melt distribution,spin—ning forming,and webbing and bonding to create a variety of pro—cess routes that cater to different product needs in the spun—bonded nonwovens industry.

● By combining advanced technological processes and a range of online adjustment tools,polypropylene,polyester,polylactic acid,polyethylene,polyurethane,and other raw materials can be flexibly spinned.

● Focus on overcoming technical challenges in produc—ing spun—bonded materials below 1.5 denier and above 6.5 denier.Achieve the versatile production of both fine and coarse denier spun—bonded materials to significantly reduce production costs for enterprises.

Two-component elastic high loft pilot line:

Soft and comfortable,breathable and light,moisture absorption and perspiration,and stable in size.