The preparation process parameters of intercalated meltblown nonwoven materials are complicated, and the relationship between process parameters, structural variables, and product performance needs to be investigated ...The preparation process parameters of intercalated meltblown nonwoven materials are complicated, and the relationship between process parameters, structural variables, and product performance needs to be investigated to establish a good mechanism for product performance regulation. In this study, we first used Wilcoxon test and Pearson correlation analysis to investigate the effect of intercalation rate on structural variables and product performance. Then, regression models were constructed to predict the values of each structural variable under different combinations of process parameters. Finally, we constructed a multi-objective constrained optimization problem based on the stepwise regression model and the product variable conditions. The problem was solved using the NSGA-II algorithm. The optimal was achieved when the acceptance distance was 2.892 cm and the hot air speed was 2000 r/min.展开更多
In this study,to efficiently remove Pb(Ⅱ) from aqueous environments,a novel L-serine-modified polyethylene/polypropylene nonwoven fabric sorbent(NWF-serine)was fabricated through the radiation grafting of glycidyl me...In this study,to efficiently remove Pb(Ⅱ) from aqueous environments,a novel L-serine-modified polyethylene/polypropylene nonwoven fabric sorbent(NWF-serine)was fabricated through the radiation grafting of glycidyl methacrylate and subsequent L-serine modification.The effect of the absorbed dose was investigated in the range of 5–50 kGy.NWF-serine was characterized by Fourier transform infrared spectroscopy,thermogravimetric analysis,and scanning electron microscopy.Batch adsorption tests were conducted to investigate the influences of pH,adsorption time,temperature,initial concentration,and sorbent dosage on the Pb(Ⅱ) adsorption performance of NWF-serine.The results indicated that Pb(Ⅱ) adsorption onto NWF-serine was an endothermic process,following the pseudo-second-order kinetic model and Langmuir isotherm model.The saturated adsorption capacity was 198.1 mg/g.NWF-serine exhibited Pb(Ⅱ) removal rates of 99.8% for aqueous solutions with initial concentrations of 100 mg/L and 82.1% for landfill leachate containing competitive metal ions such as Cd,Cu,Ni,Mn,and Zn.Furthermore,NWF-serine maintained 86% of its Pb(Ⅱ) uptake after five use cycles.The coordination of the carboxyl and amino groups with Pb(Ⅱ) was confirmed using X-ray photoelectron spectroscopy and extended X-ray absorption fine structure analysis.展开更多
Nonwoven fabrics have become indispensable materials across various industries due to their versatility,durability,and cost-effectiveness.These fabrics are manufactured by bonding or interlocking fibers using mechanic...Nonwoven fabrics have become indispensable materials across various industries due to their versatility,durability,and cost-effectiveness.These fabrics are manufactured by bonding or interlocking fibers using mechanical,thermal,or chemical processes,instead of weaving or knitting.The nonwoven fabric market has witnessed significant growth in recent years,driven by technological advancements,increasing demand from various enduse industries,and shifting consumer preferences towards sustainable and eco-friendly materials.This article delves into the innovations and demand surge propelling the growth of the nonwoven fabric market.展开更多
In this study, polyethylene-terephthalate (PET) nonwovens are treated using an atmospheric plasma and the effects of the treatment time, treatment power and discharge distance on the ability of water-penetration int...In this study, polyethylene-terephthalate (PET) nonwovens are treated using an atmospheric plasma and the effects of the treatment time, treatment power and discharge distance on the ability of water-penetration into the nonwovens are investigated. The result indicates that the method can improve the wettability of PET nonwovens remarkably, but the aging decay of the sample's wettability is found to be notable as a function of the storage time after treatment due to the internal rotation of the single bond of surface macromolecules. As shown by SEM and XPS analysis, the etching and surface reaction are significant, and water-penetration weight is found to increase remarkably with the increasing power. This variation can be attributed to momentum transfer and enhanced higher-energy particle excitation.展开更多
In this paper, glucose was used as a green reducing agent and a capping reagent in the synthesis of water dispersible graphene, while using exfoliated graphite oxide (GO) as the precursor with the modified Hummers m...In this paper, glucose was used as a green reducing agent and a capping reagent in the synthesis of water dispersible graphene, while using exfoliated graphite oxide (GO) as the precursor with the modified Hummers method. Characterizations of the graphene were conducted by UV-visihle absorption spectroscopy and X-ray diffraction (XRD). Then the spunlaid-melthlowing-spuulaid (SMS) nonwovens were treated with the graphene solution via pad-dry-cure process. The surface and the antistatic property of the obtained nonwovens were tested. The results showed that O. 1 mg/mL graphene solution exhibited good stability in water. When treated with this solution, the graphene could be evenly dispersed on SMS nonwovens and the nonwovens had an excellent antistatic performance and a high relatively antistatic durability.展开更多
Main factors affecting the low temperature plasma initia-tion and graft modification of acrylic acid onto polybuty-lene terephthalate(PBT)meltblown nonwovens are stud-ied.The relations between hydrophilic performance ...Main factors affecting the low temperature plasma initia-tion and graft modification of acrylic acid onto polybuty-lene terephthalate(PBT)meltblown nonwovens are stud-ied.The relations between hydrophilic performance ofthe product and plasma power,treating time,andmonomer concentration are investigated.The surfaceperformances of grafted products are analyzed.It is ob-tained that hydrophilic performance of PBT nonwovens isgreatly improved due to the etching of the plasma andthe introduction of polar groups so as to meet the needsof leukocyte depleting materials.展开更多
The three-dimensional(3D)model is of great significance to analyze the performance of nonwovens.However,the existing modelling methods could not reconstruct the 3D structure of nonwovens at low cost.A new method based...The three-dimensional(3D)model is of great significance to analyze the performance of nonwovens.However,the existing modelling methods could not reconstruct the 3D structure of nonwovens at low cost.A new method based on deep learning was proposed to reconstruct 3D models of nonwovens from multi-focus images.A convolutional neural network was trained to extract clear fibers from sequence images.Image processing algorithms were used to obtain the radius,the central axis,and depth information of fibers from the extraction results.Based on this information,3D models were built in 3D space.Furthermore,self-developed algorithms optimized the central axis and depth of fibers,which made fibers more realistic and continuous.The method with lower cost could reconstruct 3D models of nonwovens conveniently.展开更多
Phase change materials have a key role for wearable thermal management,but suffer from poor water vapor permeability,low enthalpy value and weak shape stability caused by liquid phase leakage and intrinsic rigidity of...Phase change materials have a key role for wearable thermal management,but suffer from poor water vapor permeability,low enthalpy value and weak shape stability caused by liquid phase leakage and intrinsic rigidity of solid–liquid phase change materials.Herein,we report for the first time a versatile strategy for designed assembly of high-enthalpy flexible phase change nonwovens(GB-PCN)by wet-spinning hybrid grapheneboron nitride(GB)fiber and subsequent impregnating paraffins(e.g.,eicosane,octadecane).As a result,our GB-PCN exhibited an unprecedented enthalpy value of 206.0 J g^(−1),excellent thermal reliability and anti-leakage capacity,superb thermal cycling ability of 97.6%after 1000 cycles,and ultrahigh water vapor permeability(close to the cotton),outperforming the reported PCM films and fibers to date.Notably,the wearable thermal management systems based on GB-PCN for both clothing and face mask were demonstrated,which can maintain the human body at a comfortable temperature range for a significantly long time.Therefore,our results demonstrate huge potential of GB-PCN for human-wearable passive thermal management in real scenarios.展开更多
Melt blown nonwovens are good filtration media for leukocyte depletion in view of their excellent structures.And the critical wetting surface tension(CWST)of nonwovens media affects the adhesion to leukocytes.The surf...Melt blown nonwovens are good filtration media for leukocyte depletion in view of their excellent structures.And the critical wetting surface tension(CWST)of nonwovens media affects the adhesion to leukocytes.The surface modification of polybutylene terephthalate(PBT) melt blown nonwovens is realized by plasma induced and grafted process.Main parameters affecting low temperature plasma inducement and graft modification of acrylicacid onto PBT melt blown nonwovens are studied.展开更多
Filtering materials are chosen according to the mechanism of blood filtration and mathematics model, then the material is treated with amine and alkali solution. There is cooperation and synergism between alkali and a...Filtering materials are chosen according to the mechanism of blood filtration and mathematics model, then the material is treated with amine and alkali solution. There is cooperation and synergism between alkali and amine, and the actions are realized in three stages. After modification the material treated has accessibility groups NH 2 , and slits appeared in the surface of fiber, so the wettability of materials is improved distinctly; the diameter and aperture of fiber have no changes basically.展开更多
Nonwovens are fiber materials which are based on nonwoven technologies. For the complexity and randomness of nonwovens morphologic structures, it is difficult to express them effectively using classical method. Fracta...Nonwovens are fiber materials which are based on nonwoven technologies. For the complexity and randomness of nonwovens morphologic structures, it is difficult to express them effectively using classical method. Fractal geometry gives us a new idea and a powerful tool to study on irregularity of geometric objects. Therefore, we studied on the pore size, pore shape, pore size distribution and fiber orientation distribution of real nonwovens using fractal geometry combined with computer image analysis to evaluate nonwovens’ morphologic structures.展开更多
In this work, we study the stability of a class of materials obtained by printing a textile with conductive inks using a method called screen printing. Under the action of a certain external factors, the printed circu...In this work, we study the stability of a class of materials obtained by printing a textile with conductive inks using a method called screen printing. Under the action of a certain external factors, the printed circuit suffers deterioration and the conductivity decreases considerably. In this work, we propose to model the overall damage of the textile sheet in terms of the partial damages of the conductive lines. We also apply this approach to evaluate the damage of a system being made of transmission lines printed into nonwoven substrates using different conductive inks.展开更多
The manufacturing process of CaCO3 modified Polypropylene (PP) spun-bonded nonwovens was studied. Then the effect of the additive amount of CaCO3 on mechanical properties of the product was analyzed, and a compatible ...The manufacturing process of CaCO3 modified Polypropylene (PP) spun-bonded nonwovens was studied. Then the effect of the additive amount of CaCO3 on mechanical properties of the product was analyzed, and a compatible mechanism between CaCO3 particles and the main component of PP was established. In the end, the mechanical performance of the products was studied when the natural light degradation was changed. The experiment results show that after adding CaCO3 to the PP spun-bonded nonwovens and through the application of complex coupling agent and organic modification, hardcore of rigid particles and polymer composite elastomers can be combined together tightly and disperse rapidly and evenly in the main part of PP. In addition, CaCO3 can catalyze the light degradation of PP spun-bonded nonwovens. The larger the content of CaCO3 is, the faster the light degradation will be.展开更多
USTER~? JOSSI VISION SHIELD removes contamination and minimizes waste When textile products are intended for critical end-uses,there can be no compromises on quality.Nonwovens manufacturers,for example,must deliver th...USTER~? JOSSI VISION SHIELD removes contamination and minimizes waste When textile products are intended for critical end-uses,there can be no compromises on quality.Nonwovens manufacturers,for example,must deliver the highest levels of quality when supplying fabrics for medical,personal care and hygiene applications.These products must both look and feel virtually perfect,to meet the expected standards for cleanliness and comfort,especially when they come into contact with human skin in use.展开更多
DDecision-makers from the Indian textile and nonwoven industry are warmly invited to register under www.germantech-indiantextile.de for the next VDMA Textile Machinery Conference and B2B-Forum from 15th to 16th May 20...DDecision-makers from the Indian textile and nonwoven industry are warmly invited to register under www.germantech-indiantextile.de for the next VDMA Textile Machinery Conference and B2B-Forum from 15th to 16th May 2018 in Mumbai(Hotel The Leela).Registration is mandatory.The VDMA will bear organizational costs(no entrance fee).Deadline for registration:April 30th,2018.展开更多
The market for nonwoven products is forecast to continue its growth trend,through both rising world population and the development of innovative products.EDANA(the European Disposables and Nonwovens Association)also s...The market for nonwoven products is forecast to continue its growth trend,through both rising world population and the development of innovative products.EDANA(the European Disposables and Nonwovens Association)also sees per capita consumption almost doubling to 1.62 kg in 2020,compared to 0.96 kg in 2009.Demand is especially strong in hygiene,personal care and medical applications– but these end-uses are among the most challenging for producers,with rigorous quality standards typically specifying zero tolerance for defects larger than 1 mm.So,manufacturers aiming to capitalize on this attractive business potential will need to adopt prudent strategies for the removal of contamination and assuring the quality levels their customers require.This is the background to USTER’s expansion of its technology range,with reliable control of contamination before the raw material reaches the fabricmaking processes– and now with the ultimate safeguard of automated checking of the finished fabric at the final inspection stage.This is a comprehensive quality solution,ideal for spunlacing– the process most widely used for medical and hygiene products– but also effective for many other nonwovens manufacturing routes.展开更多
According to media reports,since the outbreak of the pandemic,as an important raw material for masks,the market price of melt blown nonwovens has entered a rapid jump channel.Many capitals have tried to enter upstream...According to media reports,since the outbreak of the pandemic,as an important raw material for masks,the market price of melt blown nonwovens has entered a rapid jump channel.Many capitals have tried to enter upstream and downstream industries of the production of masks,in the short term,the melt blown nonwovens industry has experienced abnormal phenomena such as a surge in enterprises and a surge in prices.展开更多
In recent years,filtration nonwovens have been widely used in industrial filtration,protection,medical and other fields.The demand for nonwovens in the application field of filtration materials will increase by 2.7 pe...In recent years,filtration nonwovens have been widely used in industrial filtration,protection,medical and other fields.The demand for nonwovens in the application field of filtration materials will increase by 2.7 percent annually by 2024,according to the latest forecast issued by the international industrial research organization Freedonia Group.The growth is mainly driven by four factors.The first is the continuous development of advanced nanofiber technology.Advanced nano-fiber technology makes nonwovens more competitive with alternative materials such as membranes.展开更多
文摘The preparation process parameters of intercalated meltblown nonwoven materials are complicated, and the relationship between process parameters, structural variables, and product performance needs to be investigated to establish a good mechanism for product performance regulation. In this study, we first used Wilcoxon test and Pearson correlation analysis to investigate the effect of intercalation rate on structural variables and product performance. Then, regression models were constructed to predict the values of each structural variable under different combinations of process parameters. Finally, we constructed a multi-objective constrained optimization problem based on the stepwise regression model and the product variable conditions. The problem was solved using the NSGA-II algorithm. The optimal was achieved when the acceptance distance was 2.892 cm and the hot air speed was 2000 r/min.
基金supported by the National Natural Science Foundation of China(Nos.11605275 and 11675247)。
文摘In this study,to efficiently remove Pb(Ⅱ) from aqueous environments,a novel L-serine-modified polyethylene/polypropylene nonwoven fabric sorbent(NWF-serine)was fabricated through the radiation grafting of glycidyl methacrylate and subsequent L-serine modification.The effect of the absorbed dose was investigated in the range of 5–50 kGy.NWF-serine was characterized by Fourier transform infrared spectroscopy,thermogravimetric analysis,and scanning electron microscopy.Batch adsorption tests were conducted to investigate the influences of pH,adsorption time,temperature,initial concentration,and sorbent dosage on the Pb(Ⅱ) adsorption performance of NWF-serine.The results indicated that Pb(Ⅱ) adsorption onto NWF-serine was an endothermic process,following the pseudo-second-order kinetic model and Langmuir isotherm model.The saturated adsorption capacity was 198.1 mg/g.NWF-serine exhibited Pb(Ⅱ) removal rates of 99.8% for aqueous solutions with initial concentrations of 100 mg/L and 82.1% for landfill leachate containing competitive metal ions such as Cd,Cu,Ni,Mn,and Zn.Furthermore,NWF-serine maintained 86% of its Pb(Ⅱ) uptake after five use cycles.The coordination of the carboxyl and amino groups with Pb(Ⅱ) was confirmed using X-ray photoelectron spectroscopy and extended X-ray absorption fine structure analysis.
文摘Nonwoven fabrics have become indispensable materials across various industries due to their versatility,durability,and cost-effectiveness.These fabrics are manufactured by bonding or interlocking fibers using mechanical,thermal,or chemical processes,instead of weaving or knitting.The nonwoven fabric market has witnessed significant growth in recent years,driven by technological advancements,increasing demand from various enduse industries,and shifting consumer preferences towards sustainable and eco-friendly materials.This article delves into the innovations and demand surge propelling the growth of the nonwoven fabric market.
文摘In this study, polyethylene-terephthalate (PET) nonwovens are treated using an atmospheric plasma and the effects of the treatment time, treatment power and discharge distance on the ability of water-penetration into the nonwovens are investigated. The result indicates that the method can improve the wettability of PET nonwovens remarkably, but the aging decay of the sample's wettability is found to be notable as a function of the storage time after treatment due to the internal rotation of the single bond of surface macromolecules. As shown by SEM and XPS analysis, the etching and surface reaction are significant, and water-penetration weight is found to increase remarkably with the increasing power. This variation can be attributed to momentum transfer and enhanced higher-energy particle excitation.
基金the Fundamental Research Funds for the Central Universities,China
文摘In this paper, glucose was used as a green reducing agent and a capping reagent in the synthesis of water dispersible graphene, while using exfoliated graphite oxide (GO) as the precursor with the modified Hummers method. Characterizations of the graphene were conducted by UV-visihle absorption spectroscopy and X-ray diffraction (XRD). Then the spunlaid-melthlowing-spuulaid (SMS) nonwovens were treated with the graphene solution via pad-dry-cure process. The surface and the antistatic property of the obtained nonwovens were tested. The results showed that O. 1 mg/mL graphene solution exhibited good stability in water. When treated with this solution, the graphene could be evenly dispersed on SMS nonwovens and the nonwovens had an excellent antistatic performance and a high relatively antistatic durability.
基金Science and Technoloy Foundation of Municipal Education Commission Shanghai
文摘Main factors affecting the low temperature plasma initia-tion and graft modification of acrylic acid onto polybuty-lene terephthalate(PBT)meltblown nonwovens are stud-ied.The relations between hydrophilic performance ofthe product and plasma power,treating time,andmonomer concentration are investigated.The surfaceperformances of grafted products are analyzed.It is ob-tained that hydrophilic performance of PBT nonwovens isgreatly improved due to the etching of the plasma andthe introduction of polar groups so as to meet the needsof leukocyte depleting materials.
基金National Natural Science Foundation of China(No.61771123)。
文摘The three-dimensional(3D)model is of great significance to analyze the performance of nonwovens.However,the existing modelling methods could not reconstruct the 3D structure of nonwovens at low cost.A new method based on deep learning was proposed to reconstruct 3D models of nonwovens from multi-focus images.A convolutional neural network was trained to extract clear fibers from sequence images.Image processing algorithms were used to obtain the radius,the central axis,and depth information of fibers from the extraction results.Based on this information,3D models were built in 3D space.Furthermore,self-developed algorithms optimized the central axis and depth of fibers,which made fibers more realistic and continuous.The method with lower cost could reconstruct 3D models of nonwovens conveniently.
基金supported by the National Natural Science Foundation of China(Nos.21903082,22003065,22125903,51872283,22075279,21805273,22273100)Dalian Innovation Support Plan for High Level Talents(2019RT09)+3 种基金Dalian National Laboratory For Clean Energy(DNL),CAS,DNL Cooperation Fund,CAS(DNL201912,DNL201915,DNL202016,DNL202019)DICP(DICP I2020032,DICP I202036,I202218)The Joint Fund of the Yulin University and the Dalian National Laboratory for Clean Energy(YLU-DNL Fund 2021002,YLU-DNL 2021007,YLU-DNL 2021009)Q.Shi would like to thank Dalian Outstanding Young Scientific Talent Program(Grant 2019RJ10).
文摘Phase change materials have a key role for wearable thermal management,but suffer from poor water vapor permeability,low enthalpy value and weak shape stability caused by liquid phase leakage and intrinsic rigidity of solid–liquid phase change materials.Herein,we report for the first time a versatile strategy for designed assembly of high-enthalpy flexible phase change nonwovens(GB-PCN)by wet-spinning hybrid grapheneboron nitride(GB)fiber and subsequent impregnating paraffins(e.g.,eicosane,octadecane).As a result,our GB-PCN exhibited an unprecedented enthalpy value of 206.0 J g^(−1),excellent thermal reliability and anti-leakage capacity,superb thermal cycling ability of 97.6%after 1000 cycles,and ultrahigh water vapor permeability(close to the cotton),outperforming the reported PCM films and fibers to date.Notably,the wearable thermal management systems based on GB-PCN for both clothing and face mask were demonstrated,which can maintain the human body at a comfortable temperature range for a significantly long time.Therefore,our results demonstrate huge potential of GB-PCN for human-wearable passive thermal management in real scenarios.
基金Sponaored by the Science & Tochnology Fund of Shanghai Education Commission
文摘Melt blown nonwovens are good filtration media for leukocyte depletion in view of their excellent structures.And the critical wetting surface tension(CWST)of nonwovens media affects the adhesion to leukocytes.The surface modification of polybutylene terephthalate(PBT) melt blown nonwovens is realized by plasma induced and grafted process.Main parameters affecting low temperature plasma inducement and graft modification of acrylicacid onto PBT melt blown nonwovens are studied.
文摘Filtering materials are chosen according to the mechanism of blood filtration and mathematics model, then the material is treated with amine and alkali solution. There is cooperation and synergism between alkali and amine, and the actions are realized in three stages. After modification the material treated has accessibility groups NH 2 , and slits appeared in the surface of fiber, so the wettability of materials is improved distinctly; the diameter and aperture of fiber have no changes basically.
文摘Nonwovens are fiber materials which are based on nonwoven technologies. For the complexity and randomness of nonwovens morphologic structures, it is difficult to express them effectively using classical method. Fractal geometry gives us a new idea and a powerful tool to study on irregularity of geometric objects. Therefore, we studied on the pore size, pore shape, pore size distribution and fiber orientation distribution of real nonwovens using fractal geometry combined with computer image analysis to evaluate nonwovens’ morphologic structures.
文摘In this work, we study the stability of a class of materials obtained by printing a textile with conductive inks using a method called screen printing. Under the action of a certain external factors, the printed circuit suffers deterioration and the conductivity decreases considerably. In this work, we propose to model the overall damage of the textile sheet in terms of the partial damages of the conductive lines. We also apply this approach to evaluate the damage of a system being made of transmission lines printed into nonwoven substrates using different conductive inks.
文摘The manufacturing process of CaCO3 modified Polypropylene (PP) spun-bonded nonwovens was studied. Then the effect of the additive amount of CaCO3 on mechanical properties of the product was analyzed, and a compatible mechanism between CaCO3 particles and the main component of PP was established. In the end, the mechanical performance of the products was studied when the natural light degradation was changed. The experiment results show that after adding CaCO3 to the PP spun-bonded nonwovens and through the application of complex coupling agent and organic modification, hardcore of rigid particles and polymer composite elastomers can be combined together tightly and disperse rapidly and evenly in the main part of PP. In addition, CaCO3 can catalyze the light degradation of PP spun-bonded nonwovens. The larger the content of CaCO3 is, the faster the light degradation will be.
文摘USTER~? JOSSI VISION SHIELD removes contamination and minimizes waste When textile products are intended for critical end-uses,there can be no compromises on quality.Nonwovens manufacturers,for example,must deliver the highest levels of quality when supplying fabrics for medical,personal care and hygiene applications.These products must both look and feel virtually perfect,to meet the expected standards for cleanliness and comfort,especially when they come into contact with human skin in use.
文摘DDecision-makers from the Indian textile and nonwoven industry are warmly invited to register under www.germantech-indiantextile.de for the next VDMA Textile Machinery Conference and B2B-Forum from 15th to 16th May 2018 in Mumbai(Hotel The Leela).Registration is mandatory.The VDMA will bear organizational costs(no entrance fee).Deadline for registration:April 30th,2018.
文摘The market for nonwoven products is forecast to continue its growth trend,through both rising world population and the development of innovative products.EDANA(the European Disposables and Nonwovens Association)also sees per capita consumption almost doubling to 1.62 kg in 2020,compared to 0.96 kg in 2009.Demand is especially strong in hygiene,personal care and medical applications– but these end-uses are among the most challenging for producers,with rigorous quality standards typically specifying zero tolerance for defects larger than 1 mm.So,manufacturers aiming to capitalize on this attractive business potential will need to adopt prudent strategies for the removal of contamination and assuring the quality levels their customers require.This is the background to USTER’s expansion of its technology range,with reliable control of contamination before the raw material reaches the fabricmaking processes– and now with the ultimate safeguard of automated checking of the finished fabric at the final inspection stage.This is a comprehensive quality solution,ideal for spunlacing– the process most widely used for medical and hygiene products– but also effective for many other nonwovens manufacturing routes.
文摘According to media reports,since the outbreak of the pandemic,as an important raw material for masks,the market price of melt blown nonwovens has entered a rapid jump channel.Many capitals have tried to enter upstream and downstream industries of the production of masks,in the short term,the melt blown nonwovens industry has experienced abnormal phenomena such as a surge in enterprises and a surge in prices.
文摘In recent years,filtration nonwovens have been widely used in industrial filtration,protection,medical and other fields.The demand for nonwovens in the application field of filtration materials will increase by 2.7 percent annually by 2024,according to the latest forecast issued by the international industrial research organization Freedonia Group.The growth is mainly driven by four factors.The first is the continuous development of advanced nanofiber technology.Advanced nano-fiber technology makes nonwovens more competitive with alternative materials such as membranes.