Pub Date : 2022-01-01DOI: 10.2115/fiberst.2022-0024
Jiabei Zhang, Ziyi Chen, Di Chen, Xianxin Xi, Jinchao Zhao, Leping Huang
{"title":"Preparation and Anti-Bacterial Properties of Chitosan/Nano-Ag Modified Carboxymethyl Cellulose for Wound Dressing Materials","authors":"Jiabei Zhang, Ziyi Chen, Di Chen, Xianxin Xi, Jinchao Zhao, Leping Huang","doi":"10.2115/fiberst.2022-0024","DOIUrl":"https://doi.org/10.2115/fiberst.2022-0024","url":null,"abstract":"","PeriodicalId":54299,"journal":{"name":"Journal of Fiber Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67641154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2115/fiberst.2022-0006
Yoshinobu Uegaki, kohei Miyazawa, Tetsuya Sato, Yuichiro Shiozawa, H. Yasunaga
: The wool fabrics were treated with VOSO 4 aqueous solution and its photothermal conversion and heat retention behaviours were evaluated in comparison with the fabrics of untreated wool, normal polyester and polyester incorporated with zirconium carbide. The adsorption of vanadium ions onto the wool fabric was found to be the Langmuir type. The VOSO 4 -treated wool fabric showed higher photothermal conversion than the untreated wool fabric, when it was irradiated with the visible/IR light. The temperature of the VOSO 4 treated wool single fabric under the light irradiation decreased slightly with an increase in the chamber humidity. The temperature of the single fabric after the light off increased largely with an increase in the chamber humidity. It was considered to be due to the increasing specific heat capacity of the fibre which absorbed and adsorbed water. The surface temperatures of the lighted side and of the back of the lighted side for the four-layered VOSO 4 -treated wool fabrics were highest among the fabrics of untreated wool, normal polyester and polyester incorporated with zirconium carbide, when they were irradiated with the light at 65 % RH humidity. It was found that the VOSO 4 -treated fabric is the warmest on the whole, when the same light is irradiated to the four kinds of layered fabrics.
{"title":"Adsorption Characteristics of Vanadium Ion on Wool, and Photothermal Conversion and Heat Transfer of Vanadium-Treated Wool Depending on Humidity","authors":"Yoshinobu Uegaki, kohei Miyazawa, Tetsuya Sato, Yuichiro Shiozawa, H. Yasunaga","doi":"10.2115/fiberst.2022-0006","DOIUrl":"https://doi.org/10.2115/fiberst.2022-0006","url":null,"abstract":": The wool fabrics were treated with VOSO 4 aqueous solution and its photothermal conversion and heat retention behaviours were evaluated in comparison with the fabrics of untreated wool, normal polyester and polyester incorporated with zirconium carbide. The adsorption of vanadium ions onto the wool fabric was found to be the Langmuir type. The VOSO 4 -treated wool fabric showed higher photothermal conversion than the untreated wool fabric, when it was irradiated with the visible/IR light. The temperature of the VOSO 4 treated wool single fabric under the light irradiation decreased slightly with an increase in the chamber humidity. The temperature of the single fabric after the light off increased largely with an increase in the chamber humidity. It was considered to be due to the increasing specific heat capacity of the fibre which absorbed and adsorbed water. The surface temperatures of the lighted side and of the back of the lighted side for the four-layered VOSO 4 -treated wool fabrics were highest among the fabrics of untreated wool, normal polyester and polyester incorporated with zirconium carbide, when they were irradiated with the light at 65 % RH humidity. It was found that the VOSO 4 -treated fabric is the warmest on the whole, when the same light is irradiated to the four kinds of layered fabrics.","PeriodicalId":54299,"journal":{"name":"Journal of Fiber Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67639315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2115/fiberst.2022-0019
H. Kajiwara, R. Murakami, Ken-ichi Nakajima, E. Kosegawa, K. Konno
{"title":"MALDI Biotyping of Silkworm, Eri-Silkworm, and Wild Moth Cocoons towards the Identification of Species, Races, and Qualities","authors":"H. Kajiwara, R. Murakami, Ken-ichi Nakajima, E. Kosegawa, K. Konno","doi":"10.2115/fiberst.2022-0019","DOIUrl":"https://doi.org/10.2115/fiberst.2022-0019","url":null,"abstract":"","PeriodicalId":54299,"journal":{"name":"Journal of Fiber Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67641079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2115/fiberst.2022-0001
M. Funahashi, Norio Yoshimura, M. Takayanagi
: Down feathers, which are used as a filling material for duvets and winter clothes because of their excellent heat retention, are obtained mainly from domestic geese and ducks, but some are obtained from wild eider ducks. It is important to determine from which bird down was taken because the quality and price of down vary greatly depending on the bird species. In this study, infrared spectroscopy instead of the conventional microscopic observation was used to identify the bird species from which down was obtained. Goose down and duck down could be accurately identified by selecting an appropriate wavenumber region of the infrared (IR) absorption spectrum obtained using the attenuated total reflection (ATR) method and the partial least squares discriminant analysis (PLS-DA) method. Score plots based on principal component analysis (PCA) were found to be effective for identifying eider duck down and non-eider duck down.
{"title":"Identification of Goose Down and Duck Down using Infrared Spectroscopy and Multivariate Analysis","authors":"M. Funahashi, Norio Yoshimura, M. Takayanagi","doi":"10.2115/fiberst.2022-0001","DOIUrl":"https://doi.org/10.2115/fiberst.2022-0001","url":null,"abstract":": Down feathers, which are used as a filling material for duvets and winter clothes because of their excellent heat retention, are obtained mainly from domestic geese and ducks, but some are obtained from wild eider ducks. It is important to determine from which bird down was taken because the quality and price of down vary greatly depending on the bird species. In this study, infrared spectroscopy instead of the conventional microscopic observation was used to identify the bird species from which down was obtained. Goose down and duck down could be accurately identified by selecting an appropriate wavenumber region of the infrared (IR) absorption spectrum obtained using the attenuated total reflection (ATR) method and the partial least squares discriminant analysis (PLS-DA) method. Score plots based on principal component analysis (PCA) were found to be effective for identifying eider duck down and non-eider duck down.","PeriodicalId":54299,"journal":{"name":"Journal of Fiber Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67638869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2115/fiberst.2022-0002
Ryuta Watanabe, Kazuya Yamamoto, J. Kadokawa
Polysaccharides are widely distributed in nature and are regarded as structural materials and reservoirs of water and energy [1]. Among the natural polysaccharides, chitin, comprising main chains of β(1 →4)-linked N -acetyl-D-glucosamine (GlcNAc) residues, is an important biomass resource because it is one of the most abundant polysaccharides present in nature, mainly prevalent in the exoskeletons of crustaceans [2‒4]. However, chitin remains largely underutilized because of its poor solubility and processability, owing to its intractable bulk structure composed of numerous intraand inter-molecular hydrogen bonds. The fabrication of nanoscale polymeric assemblies (e.g., nanofibers and nanowhiskers) is a useful method for the functionalization of chitin [5‒7] because of the remarkable properties of bio-based nanomaterials, such as low weight, high tensile strength, and biocompatibility [8‒14]. Efficient procedures for the preparation of chitin nanofibers (ChNFs) and nanowhiskers have been developed using a top-down approach that breaks down the starting bulk materials from native chitin sources [5, 6, 15‒18]. Based on another approach‒the bottom-up technique‒we previously developed a facile method to fabricate ChNFs with a width of approximately 20‒60 nm and length of several hundred nanometers. Selfassembling regeneration at the nanoscale from an ion gel of a chitin/ionic liquid, namely, 1-allyl-3methylimidazolium bromide (AMIMBr), was achieved using methanol [19, 20]. This was based on our previous findings that AMIMBr efficiently dissolves and swells chitin [21]. Isolation of the resulting ChNFs from the methanol dispersion via filtration produced a ChNF film possessing a heavily entangled nanofiber morphology. Furthermore, the self-assembled ChNFs had a bundle-like structure consisting of an assembly of thinner fibrils [22]. The treatment of the ChNF film with an aqueous NaOH induced the partial generation of amino groups on the chitin chains (i.e., partially deacetylated chitin nanofibers (PDA-ChNFs)). This led to the successful disentanglement of the bundles by cationization and electrostatic repulsion in 1.0 mol/L aqueous acetic acid with ultrasonication, yielding 【Transaction】
多糖广泛存在于自然界中，被认为是结构材料和水、能的储存库。甲壳素主要由β(1→4)-连接N -乙酰- d -氨基葡萄糖(GlcNAc)残基的主链组成，是自然界中含量最多的多糖之一，主要存在于甲壳类动物的外骨骼中，是一种重要的生物质资源[2-4]。然而，由于其由许多分子内和分子间氢键组成的棘手的体结构，甲壳素的溶解度和加工性差，因此在很大程度上仍未得到充分利用。纳米级聚合物组件(如纳米纤维和纳米晶须)的制造是甲壳素功能化的一种有用方法[5-7]，因为生物基纳米材料具有显著的特性，如低重量、高抗拉强度和生物相容性[8-14]。制备几丁质纳米纤维(ChNFs)和纳米晶须的有效方法已经开发出来，使用自上而下的方法分解天然几丁质来源的起始块状材料[5,6,15 - 18]。基于另一种方法——自下而上的技术，我们之前开发了一种简单的方法来制造宽度约为20-60纳米，长度为数百纳米的chnf。利用甲醇实现了几丁质/离子液体(即1-烯丙基-3甲基咪唑溴化铵(AMIMBr))离子凝胶在纳米尺度上的自组装再生[19,20]。这是基于我们之前的发现，AMIMBr有效地溶解和膨胀甲壳素[21]。通过过滤从甲醇分散体中分离得到的ChNF产生了具有严重纠缠纳米纤维形态的ChNF膜。此外，自组装的chnf具有束状结构，由较薄的原纤维b[22]组成。用NaOH水溶液处理ChNF膜可诱导几丁质链上的部分氨基生成(即部分去乙酰化的几丁质纳米纤维)。结果表明，在1.0 mol/L的醋酸水溶液中，通过超声作用，通过阳离子化和静电斥力，成功解缠。
{"title":"Hydrogelation from Scaled-Down Chitin Nanofibers by Reductive Amination of Monosaccharide Residues","authors":"Ryuta Watanabe, Kazuya Yamamoto, J. Kadokawa","doi":"10.2115/fiberst.2022-0002","DOIUrl":"https://doi.org/10.2115/fiberst.2022-0002","url":null,"abstract":"Polysaccharides are widely distributed in nature and are regarded as structural materials and reservoirs of water and energy [1]. Among the natural polysaccharides, chitin, comprising main chains of β(1 →4)-linked N -acetyl-D-glucosamine (GlcNAc) residues, is an important biomass resource because it is one of the most abundant polysaccharides present in nature, mainly prevalent in the exoskeletons of crustaceans [2‒4]. However, chitin remains largely underutilized because of its poor solubility and processability, owing to its intractable bulk structure composed of numerous intraand inter-molecular hydrogen bonds. The fabrication of nanoscale polymeric assemblies (e.g., nanofibers and nanowhiskers) is a useful method for the functionalization of chitin [5‒7] because of the remarkable properties of bio-based nanomaterials, such as low weight, high tensile strength, and biocompatibility [8‒14]. Efficient procedures for the preparation of chitin nanofibers (ChNFs) and nanowhiskers have been developed using a top-down approach that breaks down the starting bulk materials from native chitin sources [5, 6, 15‒18]. Based on another approach‒the bottom-up technique‒we previously developed a facile method to fabricate ChNFs with a width of approximately 20‒60 nm and length of several hundred nanometers. Selfassembling regeneration at the nanoscale from an ion gel of a chitin/ionic liquid, namely, 1-allyl-3methylimidazolium bromide (AMIMBr), was achieved using methanol [19, 20]. This was based on our previous findings that AMIMBr efficiently dissolves and swells chitin [21]. Isolation of the resulting ChNFs from the methanol dispersion via filtration produced a ChNF film possessing a heavily entangled nanofiber morphology. Furthermore, the self-assembled ChNFs had a bundle-like structure consisting of an assembly of thinner fibrils [22]. The treatment of the ChNF film with an aqueous NaOH induced the partial generation of amino groups on the chitin chains (i.e., partially deacetylated chitin nanofibers (PDA-ChNFs)). This led to the successful disentanglement of the bundles by cationization and electrostatic repulsion in 1.0 mol/L aqueous acetic acid with ultrasonication, yielding 【Transaction】","PeriodicalId":54299,"journal":{"name":"Journal of Fiber Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67639348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2115/fiberst.2022-0011
Takeru Ohe, Y. Yoshimura
{"title":"Coloration of Wool Fibers by Reducing Sugars","authors":"Takeru Ohe, Y. Yoshimura","doi":"10.2115/fiberst.2022-0011","DOIUrl":"https://doi.org/10.2115/fiberst.2022-0011","url":null,"abstract":"","PeriodicalId":54299,"journal":{"name":"Journal of Fiber Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67639519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2115/fiberst.2022-0014
Takuma Isshiki, Hidenori Yamazaki, Toshifumi Ikaga, Kyounghou Kim, Y. Ohkoshi
{"title":"X-Ray Computed Tomography Observations of Multi-Hollowed Fibers Produced by CO2 Laser-Heated Drawing","authors":"Takuma Isshiki, Hidenori Yamazaki, Toshifumi Ikaga, Kyounghou Kim, Y. Ohkoshi","doi":"10.2115/fiberst.2022-0014","DOIUrl":"https://doi.org/10.2115/fiberst.2022-0014","url":null,"abstract":"","PeriodicalId":54299,"journal":{"name":"Journal of Fiber Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67639620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2115/fiberst.2022-0017
A. Togo, K. Uechi, O. Mizutani, Satoshi Kimura, T. Iwata
*1 Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan *2 Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nakagami-gun Nishihara-cho, Okinawa 903-0213, Japay *3 Technology Advancement Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
{"title":"Preparation and Crystal Structure Analysis of High-Strength Film Derived from Nigeran Ester Derivatives","authors":"A. Togo, K. Uechi, O. Mizutani, Satoshi Kimura, T. Iwata","doi":"10.2115/fiberst.2022-0017","DOIUrl":"https://doi.org/10.2115/fiberst.2022-0017","url":null,"abstract":"*1 Science of Polymeric Materials, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan *2 Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nakagami-gun Nishihara-cho, Okinawa 903-0213, Japay *3 Technology Advancement Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan","PeriodicalId":54299,"journal":{"name":"Journal of Fiber Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67639985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.2115/fiberst.2022-0022
Hideyuki Shima, H. Yasunaga
{"title":"Fibre Treatment Technique by Using Alizarin to Confer Functions of Scavenging and Detecting Hapten Nickel and Cobalt Ions upon Cotton Fabric for the Control of Metal Allergy Symptoms","authors":"Hideyuki Shima, H. Yasunaga","doi":"10.2115/fiberst.2022-0022","DOIUrl":"https://doi.org/10.2115/fiberst.2022-0022","url":null,"abstract":"","PeriodicalId":54299,"journal":{"name":"Journal of Fiber Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67641102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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