The silk fabrics were matching dyed with three natural edible pigments(red rice red,ginger yellow and gardenia blue).By investigating the dyeing rates and lifting properties of these pigments,it was observed that thei...The silk fabrics were matching dyed with three natural edible pigments(red rice red,ginger yellow and gardenia blue).By investigating the dyeing rates and lifting properties of these pigments,it was observed that their compatibilities were excellent in the dyeing process:dye dosage 2.5%(omf),mordant alum dosage 2.0%(omf),dyeing temperature 80℃and dyeing time 40 min.The silk fabrics dyed with secondary colors exhibited vibrant and vivid color owing to the remarkable lightness and chroma of ginger yellow.However,gardenia blue exhibited multiple absorption peaks in the visible light range,resulting in significantly lower lightness and chroma for the silk fabrics dyed with tertiary colors,thus making it suitable only for matte-colored fabrics with low chroma levels.In addition,the silk fabrics dyed with these three pigments had a color fastness that exceeded grade 3 in resistance to perspiration,soap washing and light exposure,indicating acceptable wearing properties.The dyeing process described in this research exhibited a wide range of potential applications in matching dyeing of protein-based textiles with natural colorants.展开更多
The sterilization of the simulated unearthed silk fabrics using an atmospheric pressure plasma jet（APPJ） system employing Ar/O2 or He/O2 plasma to inactivate the mycete attached on the silk fabrics is reported. The ...The sterilization of the simulated unearthed silk fabrics using an atmospheric pressure plasma jet（APPJ） system employing Ar/O2 or He/O2 plasma to inactivate the mycete attached on the silk fabrics is reported. The effects of the APPJ characteristics（particularly the gas type and discharge power） on the fabric strength, physical-chemical structures,and sterilizing efficiency were investigated. Experimental results showed that the Ar/O2 APPJ plasma can inactivate the mycete completely within 4.0 min under a discharge power of 50.0 W. Such an APPJ treatment had negligible impact on the mechanical strength of the fabric and the surface chemical characteristics. Moreover, the Ar ions, O and OH radicals were shown to play important roles on the sterilization of the mycete attached on the unearthed silk fabrics.展开更多
In this study,the effects of plasma treatment parameters on surface morphology,chemical constituent,dycabiliiy and color fastness of silk fabric were investigated.Atmospheric pressure glow discharge plasma generated w...In this study,the effects of plasma treatment parameters on surface morphology,chemical constituent,dycabiliiy and color fastness of silk fabric were investigated.Atmospheric pressure glow discharge plasma generated with different applied voltages(0 kV to 45 kV)was used to treat the surface of silk fabrics.C I Natural Yellow 3 was used to dye untreated and plasma-treated silk fabrics.The physical analysis based on scanning electron microscopy showed that the surface of silk fabrics was affected by plasma treatment.The chemical analysis was investigated with x-ray photi>elcctron spectroscopy and attenuated total reflection Fourier transform infrared spectroscopy.The results showed that the content of C Is decreased with the increasing applied voltage,the content of N Is and O Is increased with the increasing applied voltage.The increasing K/S values represented that the dyeability of silk fabrics was improved after plasma treatment.The color fastness to dry and wet rubbing was decreased after plasma treatment.展开更多
A feasible approach for the recognition of silk fabric defects based on wavelet transform and SOM neural network is proposed in this paper, the indispensable processes of which are defect images denoising and enhancem...A feasible approach for the recognition of silk fabric defects based on wavelet transform and SOM neural network is proposed in this paper, the indispensable processes of which are defect images denoising and enhancement, image edge detection, feature extraction and defects identification. Both geometrical and textmal feature parmnete~ are extracted from the edge image and the enhanced defect image, and utilize SOM neural network to recognize the common defects which silk fabrics have, including warplacking, weft-lacking, double weft, loom bars, oil-stains. Experimental resets show the advantages with high identification correctness and high inspection speed.展开更多
ESR studies were done on UV-ray irradiated silk fabric samples at room temperature. Different types of UV lamps were used and similar ESR signals were observed. The results indicate that UV-rays can produce free radic...ESR studies were done on UV-ray irradiated silk fabric samples at room temperature. Different types of UV lamps were used and similar ESR signals were observed. The results indicate that UV-rays can produce free radicals for graft-copolymerization of monomer onto silk fibers without external additives or co additives, Also, radicals in silk fabrics irradiated by UV-rays are purer than that irradiated by γ-rays. The study suggests that UV-lights may be a better tool to improve properties of silk fabrics by grafting monomers onto the polymer chains.展开更多
In this paper, the relationship between mechanical properties of 30 pieces of pure silk fabrics and the dress performance has been analyzed. With the methods of multifactor linear step regression and discrimination an...In this paper, the relationship between mechanical properties of 30 pieces of pure silk fabrics and the dress performance has been analyzed. With the methods of multifactor linear step regression and discrimination analysis, the judgment and prediction model of the performance have been established.展开更多
The propoerties of radicals fromγ-ray irradiated silk fabrics were studied by electron spin resonance method(ESR).The ESR spectra of silk fabrics irradiated in N2 showed a doublet at room temperature,The doublet beca...The propoerties of radicals fromγ-ray irradiated silk fabrics were studied by electron spin resonance method(ESR).The ESR spectra of silk fabrics irradiated in N2 showed a doublet at room temperature,The doublet became a singlet at g=2.0057 after placing the sample in air for 24 hours.This can be explained by formation of peroxide radicals.The radical concentration of the irradiated silk fabric and the decay rate of radicals are significantly affected by irradiation conditions.which include the absorbed dose.atmosphere,and water content of the silk fabric samples.However,no dose rate effect on the radical concentration was observed.The results are of help in our practice of property modification of silk products by radiation graft copolymerization.展开更多
In the paper the monitor and control methods of silk fabrics degumming process havebeen discussed which arethe pH value of degumming bath, the degumming loss percentage and the supplemen-tary amounts of degumming assi...In the paper the monitor and control methods of silk fabrics degumming process havebeen discussed which arethe pH value of degumming bath, the degumming loss percentage and the supplemen-tary amounts of degumming assistants etc.The investigation was shown that method is exact to measure the PH value of degum-ming bath by the heat resistant 305-2 type lithium glass electrode and the 232 type calomelelectrode through the saturated polassium chloride salt bridge at the degumming tempera-ture, the method can be avoided the errors in the conventional measurements.From the theoretical calculate of the alkaline expense, including the absorbed alkali ofraw silk fabric, G1;the alkali carried away by fabric, G2;the consumptive alkali by belach-ing agent, G3 etc. According to practical produce, the empirical formula has been estab-lished for determination of the addittional amounts of degumming assistants, G, at the con-tinuous produce:G=1.28(G1+G2+G3)(g/kg fabric)展开更多
Millimeter wave technology is one of the technologies developed rapidly in recent years. The research was mainly to study the transmission of millimeter wave through textile material named silk fabric. We observed the...Millimeter wave technology is one of the technologies developed rapidly in recent years. The research was mainly to study the transmission of millimeter wave through textile material named silk fabric. We observed the phenomenon of sub-millimeter-wave transmission and reflection of the silk fabric, and concluded that with the number of silk fabric layers increasing, effect of scattering and absorption of the millimeter wave enhanced. The conclusion could be further employed in millimeter wave and THz imaging, dangerous goods inspection and other security application.展开更多
In this research, the wicking characteristics of fabrics were used as an essential and effective indicator to investigate the satisfaction of heat and moisture. Due to the popularization of silk fabrics recently it ha...In this research, the wicking characteristics of fabrics were used as an essential and effective indicator to investigate the satisfaction of heat and moisture. Due to the popularization of silk fabrics recently it has become an interesting topic to know about the wicking behavior of silk fabrics in water. The absorptive capability of the silk textile makes clothing comfortable even for a hotter environment. Silk fabrics are comfortable in the summer, and warm in the winter. Silk fabric can usually contain about 11 percent of its weight in moisture but the range varies from 10% to as much as 30%. In this paper, the wicking behavior of silk fabric in both warp and weft directions was investigated in terms of wicking height, wicking rate, mass increase distribution per centimeter of wicking height, the velocity of wicking height, and durability of wicking height after removal of the wicking liquid reservoir. The experimental results show that the wicking height in both the warp and weft directions had a good correlation with the time. The wicking rate was comparable in both weft and warp directions, but at the start of the wicking phase, weft direction wicking was quicker than warp direction. The mass increase in fabric per centimeter of wicking height was inversely proportional to wicking height. The mass of moisture carried in the fabric did not significantly differ in the direction of the weft and warp.展开更多
基金Fujian External Cooperation Project of Natural Science Foundation,China(No.2022I0042)。
文摘The silk fabrics were matching dyed with three natural edible pigments(red rice red,ginger yellow and gardenia blue).By investigating the dyeing rates and lifting properties of these pigments,it was observed that their compatibilities were excellent in the dyeing process:dye dosage 2.5%(omf),mordant alum dosage 2.0%(omf),dyeing temperature 80℃and dyeing time 40 min.The silk fabrics dyed with secondary colors exhibited vibrant and vivid color owing to the remarkable lightness and chroma of ginger yellow.However,gardenia blue exhibited multiple absorption peaks in the visible light range,resulting in significantly lower lightness and chroma for the silk fabrics dyed with tertiary colors,thus making it suitable only for matte-colored fabrics with low chroma levels.In addition,the silk fabrics dyed with these three pigments had a color fastness that exceeded grade 3 in resistance to perspiration,soap washing and light exposure,indicating acceptable wearing properties.The dyeing process described in this research exhibited a wide range of potential applications in matching dyeing of protein-based textiles with natural colorants.
基金Project supported by the National Natural Science Foundation of China(Grant Nos.11665005,11505032,11547139,51672249,and 11565003)the Zhejiang Natural Science Foundation of China(Grant No.LY16A050002)+3 种基金the Natural Science Foundation of Jiangxi Province,China(Grant Nos.20161BAB211026,20171ACB21049,and 20171BAB211012)the Science and Technology Project of Jiangxi Provincial Department of Education,China(Grant No.GJJ150981)the Program for Innovative Research Team of Zhejiang Sci-Tech University,Chinathe Opening Foundation of Insititue of Textile Technology,Wuhan Texitle Universitiy,China(Grant No.GCZX201702)
文摘The sterilization of the simulated unearthed silk fabrics using an atmospheric pressure plasma jet（APPJ） system employing Ar/O2 or He/O2 plasma to inactivate the mycete attached on the silk fabrics is reported. The effects of the APPJ characteristics（particularly the gas type and discharge power） on the fabric strength, physical-chemical structures,and sterilizing efficiency were investigated. Experimental results showed that the Ar/O2 APPJ plasma can inactivate the mycete completely within 4.0 min under a discharge power of 50.0 W. Such an APPJ treatment had negligible impact on the mechanical strength of the fabric and the surface chemical characteristics. Moreover, the Ar ions, O and OH radicals were shown to play important roles on the sterilization of the mycete attached on the unearthed silk fabrics.
文摘In this study,the effects of plasma treatment parameters on surface morphology,chemical constituent,dycabiliiy and color fastness of silk fabric were investigated.Atmospheric pressure glow discharge plasma generated with different applied voltages(0 kV to 45 kV)was used to treat the surface of silk fabrics.C I Natural Yellow 3 was used to dye untreated and plasma-treated silk fabrics.The physical analysis based on scanning electron microscopy showed that the surface of silk fabrics was affected by plasma treatment.The chemical analysis was investigated with x-ray photi>elcctron spectroscopy and attenuated total reflection Fourier transform infrared spectroscopy.The results showed that the content of C Is decreased with the increasing applied voltage,the content of N Is and O Is increased with the increasing applied voltage.The increasing K/S values represented that the dyeability of silk fabrics was improved after plasma treatment.The color fastness to dry and wet rubbing was decreased after plasma treatment.
基金Ministry of Commerce of the People's Republic of China (PRC)
文摘A feasible approach for the recognition of silk fabric defects based on wavelet transform and SOM neural network is proposed in this paper, the indispensable processes of which are defect images denoising and enhancement, image edge detection, feature extraction and defects identification. Both geometrical and textmal feature parmnete~ are extracted from the edge image and the enhanced defect image, and utilize SOM neural network to recognize the common defects which silk fabrics have, including warplacking, weft-lacking, double weft, loom bars, oil-stains. Experimental resets show the advantages with high identification correctness and high inspection speed.
文摘ESR studies were done on UV-ray irradiated silk fabric samples at room temperature. Different types of UV lamps were used and similar ESR signals were observed. The results indicate that UV-rays can produce free radicals for graft-copolymerization of monomer onto silk fibers without external additives or co additives, Also, radicals in silk fabrics irradiated by UV-rays are purer than that irradiated by γ-rays. The study suggests that UV-lights may be a better tool to improve properties of silk fabrics by grafting monomers onto the polymer chains.
文摘In this paper, the relationship between mechanical properties of 30 pieces of pure silk fabrics and the dress performance has been analyzed. With the methods of multifactor linear step regression and discrimination analysis, the judgment and prediction model of the performance have been established.
文摘The propoerties of radicals fromγ-ray irradiated silk fabrics were studied by electron spin resonance method(ESR).The ESR spectra of silk fabrics irradiated in N2 showed a doublet at room temperature,The doublet became a singlet at g=2.0057 after placing the sample in air for 24 hours.This can be explained by formation of peroxide radicals.The radical concentration of the irradiated silk fabric and the decay rate of radicals are significantly affected by irradiation conditions.which include the absorbed dose.atmosphere,and water content of the silk fabric samples.However,no dose rate effect on the radical concentration was observed.The results are of help in our practice of property modification of silk products by radiation graft copolymerization.
文摘In the paper the monitor and control methods of silk fabrics degumming process havebeen discussed which arethe pH value of degumming bath, the degumming loss percentage and the supplemen-tary amounts of degumming assistants etc.The investigation was shown that method is exact to measure the PH value of degum-ming bath by the heat resistant 305-2 type lithium glass electrode and the 232 type calomelelectrode through the saturated polassium chloride salt bridge at the degumming tempera-ture, the method can be avoided the errors in the conventional measurements.From the theoretical calculate of the alkaline expense, including the absorbed alkali ofraw silk fabric, G1;the alkali carried away by fabric, G2;the consumptive alkali by belach-ing agent, G3 etc. According to practical produce, the empirical formula has been estab-lished for determination of the addittional amounts of degumming assistants, G, at the con-tinuous produce:G=1.28(G1+G2+G3)(g/kg fabric)
文摘Millimeter wave technology is one of the technologies developed rapidly in recent years. The research was mainly to study the transmission of millimeter wave through textile material named silk fabric. We observed the phenomenon of sub-millimeter-wave transmission and reflection of the silk fabric, and concluded that with the number of silk fabric layers increasing, effect of scattering and absorption of the millimeter wave enhanced. The conclusion could be further employed in millimeter wave and THz imaging, dangerous goods inspection and other security application.
文摘In this research, the wicking characteristics of fabrics were used as an essential and effective indicator to investigate the satisfaction of heat and moisture. Due to the popularization of silk fabrics recently it has become an interesting topic to know about the wicking behavior of silk fabrics in water. The absorptive capability of the silk textile makes clothing comfortable even for a hotter environment. Silk fabrics are comfortable in the summer, and warm in the winter. Silk fabric can usually contain about 11 percent of its weight in moisture but the range varies from 10% to as much as 30%. In this paper, the wicking behavior of silk fabric in both warp and weft directions was investigated in terms of wicking height, wicking rate, mass increase distribution per centimeter of wicking height, the velocity of wicking height, and durability of wicking height after removal of the wicking liquid reservoir. The experimental results show that the wicking height in both the warp and weft directions had a good correlation with the time. The wicking rate was comparable in both weft and warp directions, but at the start of the wicking phase, weft direction wicking was quicker than warp direction. The mass increase in fabric per centimeter of wicking height was inversely proportional to wicking height. The mass of moisture carried in the fabric did not significantly differ in the direction of the weft and warp.
