Weaving Process Research Articles

Improving the Density of Functional Fabrics to Protect Radiation Workers in Radiology Departments

In medical institutions, the high weight of shielding clothing restrains the activities of medical workers. Although lightweight shielding clothing is being manufactured to solve this problem, the weight can only be reduced by 10%–20%. Flexible shielding fibers are mainly used to minimize activity restrictions; however, it is difficult to maintain the reproducibility of shielding performance. When weaving fibers with a yarn that contains a shielding material, the content of the shielding material in the yarn, tensile strength, and problems encountered during weaving should be considered. Therefore, in this study, a high-density shielding fabric weaving process was developed to weave a functional shielding fabric for actively utilizing it for low-dose shielding. The yarn was manufactured using 5 wt% barium sulfate, and the shielding performance was evaluated using the existing plain weave and two fabrics that underwent the newly developed high-density twill weave process. As a result of the experiment, the density of the fabric woven by the twill method increased by 82 g/m³, documenting a difference of 7.46% in the high-energy region and 11.71% in the low-energy region, thus indicating that the Twill method improves the shielding effect. Therefore, it is possible to mass produce lightweight, high-density shielding fabric that can protect against scattered rays that represent the main source of radiation in medical institutions.

Rapid Sketching of Woven Textile Behavior: The Experimental Use of Parametric Modeling and Interactive Simulation in the Weaving Process

Woven textiles are typically designed with methods and software that demonstrate the graphical aspects of fabric but are limited in their representation of fabric behavior. The category of textiles that undergo shape changes in the finishing phase is well suited to alternate design approaches that incorporate predictive modeling. In this paper, we describe a methodology that uses parametric modeling and simulation to ideate, refine and inform physically produced woven fabrics with specific dimensional qualities, shifting the iterative work inherent to textile design into a digital space. • Design of woven textiles with shape changing behavior is aided by predictive workflow. • Surface modeling as sketching of fabric forms is a rich iterative design experience. • Woven fabrics closely resemble initial models and inform further refinements. • Methodology streamlines prototyping process, broadens design language for wovens.

Study of predicting the number of warp thread breaks during the weaving process

The properties of cotton yarn which will be used as the warp were investigated before the weaving process. The results of the breaking forces served to make an empirical and approximated diagram of the normal distribution. Yarn tests were performed by yarn passing through a weaving process simulator with electronic force measurement, speed, and the number of wefts. The number of breaks was registered during the yarn test. Measurements were performed simulating different conditions of the weaving process (change in reed density, higher dynamic tensile forces, lower dynamic tensile forces, and shed height changes). Data computer processing gave approximate diagrams of dynamic forces normal distribution under the test conditions, which do not show significance according to the χ2-test. By pairing a diagram of the breaking force and a diagram of one of the conditions in the weaving process, shown in the same line of forces, their intersection or surfaces overlap is expressed. Based on the integration of the intersection area of the breaking forces approximated diagrams and dynamic forces in the weaving process, the value of the intersection area according to the test conditions was obtained. A high degree of correlation was found by correlating the actual number of thread breaks registered at the time of testing and the intersection of areas for the corresponding condition. This makes it possible to predict the number of breaks in the warp threads during the weaving process if the yarn characteristics and the weaving conditions are known.

PENGEMBANGAN KAWASAN RUMAH TENUN SAMBAS DI DESA SUMBER HARAPAN KABUPATEN SAMBAS

Sambas Regency is a local government that still follows the traditions, customs, and cultures of the past until now. Traditional ceremonies such as weddings and haircuts in Sambas Regency still use woven fabrics as clothing and complements. Sambas woven fabric is a traditional craft that is no less competitive with other regional woven products. The production of Sambas woven fabrics is currently carried out at the Weaving House in the village of Sumber Harapan, Sambas Regency, West Kalimantan. However, there are several problems in producing this woven fabric. Existing problems such as the weaving process which is still less productive, lack of product marketing, exhibitions that are held irregularly, lack of a place to show off woven products and lack of forums for discussion. This design uses the concept of contemporary architectural principles as an approach that supports the design of spaces that have innovative, creative and flexible themes. The shape changes in the design of the Sambas Weaving House Area are linear, almost symmetrical to add aesthetics to the area. The number of floors that are only designed in one floor because the building is a wide span. The design for the development of the Sambas Weaving House Area in Sumber Harapan Village, Sambas Regency resulted in a multi-mass area which includes gallery buildings, management offices, food courts and prayer rooms.

Design Application for Balinese Songket Weaving Motif

Songket weaving is an Indonesian cultural heritage that has been passed down from generation to generation. Every region in Indonesia has its own Songket weaving, depending on the region’s characteristics. Bali island is one well-known region in Indonesia for Songket weaving. In the past, Songket weaving in Bali was only made for caste members and the royal family. At that time, only people in the royal family were able to make Songket weaving. The songket weaving process in Bali was mainly performed using a weaving tool called cagcag. The songket weaving pattern (motif) was made using a sungkit technique—interlace between threads to create a motif. The making of the songket motif begins with arranging the thread according to the desired motif before the weaving process. Information about the motif was spread in Guun. In general, songket weaving in Bali island has tens to hundreds of Guun. The skills to break the desired motif into the Guun is quite a complicated process. Therefore, not many weavers master the process of making songket motifs. Most of the motif makers continue or imitate existing motifs. Currently, a motif maker who can make a motif from scratch is rare. In order to help break motifs into Guun, an in-depth understanding of the calculation of making songket motifs is required. Then, this understanding is transformed into an application that can help motif makers to visualize motifs into Guum. The design application will provide multiple benefits for the motif makers and serve as an effort of culture preservation by introducing a design application to make songket motifs for younger generations. Therefore, they are expected to contribute to making songket weaving motifs.

RESEARCH ON THE INNOVATIVE DESIGN OF TRADITIONAL LIGHTWEIGHT CLOTHING SILK FABRICS GUIDED BY THE CHANGE OF EMOTIONAL BEHAVIOR UNDER THE BACKGROUND OF GUANGDONG, HONG KONG AND MACAO

BackgroundThe construction and development of Dawan district has further promoted the innovative application of cultural resources, brought the long-standing Lingnan culture into the international stage, and become an important carrier and tool to strengthen international cultural exchanges and promote economic cooperation and development. Dawan district. Gauze, as a traditional and ancient manual weaving and dyeing process, has been listed in the national intangible cultural heritage list. It is on the verge of disappearing and in urgent need of rescue. Lightweight business wear is playing an increasingly important role in today's consumer market and has become a cultural image card to convey friendship and mutual assistance. This paper studies the innovative design of light and thin business clothing, and deeply integrates the two elements of shuisha and Lingnan culture, especially the changes of people's emotional behavior towards culture in the process of communication. At present, there is no relevant research report.Topics and MethodsTake water yarn as the carrier, transform Lingnan traditional culture into design elements, deeply integrate light and thin business clothing design, explore the new visual expression and process production of traditional water yarn in style, color and pattern, and give new artistic expression to traditional water yarn. The author studies the application status of gauze in related fields of cultural industry, including the advantages and limitations of gauze; Difficulties in design and production; Advantages and limitations of washing gauze clothing style types, styles and patterns. This paper will explain how to overcome the compatibility problem of the combination of light and thin business clothes and washed yarn, and put forward practical solutions from the aspects of fabric and technology. The research methods include creative practice, literature analysis, observation, field investigation and expert discussion. At the same time, the emotional behavior of water conservancy workers in various places was investigated. This study adopts the profile of mood states (POMS), which was compiled by Australian scholars grore and prapavessis in 1992 and revised by Professor Zhu Beili. It is considered to be a good tool to study emotional states. The average reliability of the scale is 0.71, which is in the standard value of 0.60 ~ 0.82. There are 40 adjectives in the questionnaire, which are divided into seven subscales: tension, anger, fatigue, depression, energy, panic and self-esteem. The corresponding score scale of 0-4 was used. The final result (TMD) of the total score of mood state is five negative emotion scores minus two negative emotion scores, plus a constant of 100 for correction.ResultsThe deep integration of “water yarn + Lingnan cultural elements + light business dress” will broaden the design field of water yarn and endow it with new artistic expression to meet the needs of the times. The combination of water yarn and other textile fabrics can improve the problems of single color, thin texture and high cost of water yarn. Through the summary of creative practice, it is found that there has been a new breakthrough in traditional technology and modern design, and found a new research perspective, which provides a theoretical basis for the application of traditional water yarn in fashion design.ConclusionThis study is not only conducive to revitalizing local culture, promoting the flow of innovative elements and continuously improving the value of urban culture, but also has practical application value for the inheritance and innovation of intangible cultural heritage, and is ready for transformation. From “China's garment industry” to “China's manufacturing industry”.AcknowledgementsThis paper is wrote by He Xiaochun and it is a research project of Guangdong Literary & Art Vocational College, Guangdong Province Education Science “13th Five-Year Plan” 2020. Project name: Research on Innovative Design of Traditional Watered Gauze in Light Business wear under the Background of Guangdong, Hong Kong, Macao Greater Bay Area Construction, Project Number: 2020GXJK313).

Effect of the micro-structure on the compressive failure behavior of three-dimensional orthogonal woven composites

The failure behavior of three-dimensional orthogonal woven composites (3DOWCs) under in-plane axial compression has been experimentally and numerically investigated. The micro-structure at the intersecting points of the fabric reinforcement, which is induced by the tow force in the weaving process, is introduced. The strength and the induced damage along the warp and weft directions were investigated. The micro-structure of the 3DOWC including the details of the tow waviness and resin distribution was accurately obtained through a multiscale modeling approach. Resin cracking and the local stress concentration were captured by the numerical models, and they showed good correlations with the experimental results. The fiber undulation in the region of the tow intersection concentrated stress, which led to fiber fracture in the compression process. The main load-carrying tow, namely, the warp and weft tow along each direction, had different forms of undulation, which should be the reason for the decreasing compression-carrying capacity of the 3DOWC. With increasing Z-binder tow force, the level of fiber straightness decreased and the failure mode transformed from macroscopic brooming type to fiber microbucking. The inclination angle of the through-thickness fracture path suggested that fracture was induced by the shear failure in the load-carrying tows.

Handloom and Powerloom Industries in Odisha: A Historical Analysis

Abstract The handloom industry in India is an ancient cottage industry with a decentralized setup that provides jobs to about 35 million people. Handloom established its reputation in the global market long before the industrial revolution. Today, India’s handloom and spinning wheel produces the largest variation of designs. It continued to flourish despite the oppression of the British Government. In India the powerloom sector is the dominant player in the weaving process. It contributes more than 60 percent of the total textile production. The powerloom units are meeting the textile products required for the domestic market as well as for the export of the same. Against this backdrop this article dwells upon the history of the handloom and powerloom industry in India in general, and Odisha in particular. This article is based on only secondary data.

Spherically Curved Woven Fabrics - Shaping on the Loom

Fiber-reinforced plastic (FRP) structures are established in numerous lightweight solutions. Among textile products available for technical applications, flat woven fabrics are commonly used to produce 3D components. In order to convert the flat woven structures into 3D geometries, draping and cutting processes are applied primarily. This leads to structural distortions, yarn interruption and overlaps of the layers. Beside the resulting reduction of mechanical properties, manual work steps are necessary. 3D woven fabrics offer outstanding possibilities for realizing net-shape FRP lightweight structures while avoiding these disadvantages. A current challenge in the manufacture of 3D net-shape structures is the direct generation of desired geometry during the weaving process. The aim of the presented work is the development of a novel weaving technology that enables the creation of spherically curved woven fabrics. Constructive-technological solutions are presented and the required mathematical as well as weaving modelling is shown.

The matching relation analysis of yarn pre-tension in weaving 3D bi-directional angle-interlock fabrics

Yarn pre-tension is an important technological parameter in the weaving process and significantly affects the geometry and properties of woven composites. 3D bi-directional angle-interlock (3DBA) fabrics have the same yarn crimp in the warp and weft directions, which requires a special matching relationship between the warp and weft yarn tensions applied in the weaving process. This study focused on obtaining the pre-tension matching relationship that applied between the warp and weft yarns in the weaving of 3DBA fabrics. A quasi-static mechanical model of yarn interactions in the weaving of 3DBA fabrics was developed based on the 2D woven fabric yarn interaction model. The weaving process of 3DBA fabrics could be divided into two interweaves as one cycle. In a given interweaving of a single group of yarns, the pre-tension applied to the warp yarns tends to increase irregularly with the position of the interweaving point and varies linearly with the weft pre-tension. The weft crimps distribution of 3DBA fabrics was compared when yarns were applied to the different proportions of pre-tension in the weaving process. The experiment result shows that the sample with the best uniform distribution of yarn geometry is the one to which the yarn pre-tension calculated by the model is applied in the weaving process. The result provides theoretical support for warp and weft pre-tension applied in the 3DBA fabrics weaving process.

Study on the causes and remedies of ball formation in looms due to improper sizing

Textile industry is a significant source of revenue in Bangladesh. More effort is being put into producing high-quality woven fabrics. The generation of fiber balls is a significant challenge in the fabrication of woven fabrics. It causes coloring issues in woven fabrics as well as fabric rejection. The method of fiber ball generation during weaving has been described in this article. The advancements in the weaving process that are required to prevent ball formation and to weave virtually flawless cloth have also been explored.

Effect of weaving parameters on fiber structure of 3D woven preforms: A Micro-CT investigation

The fiber structure of three-dimensional (3D) woven preform is generally complex due to the contact interactions and micro-scale deformations of the yarns during the weaving process. The present study explores the effect of weaving parameters on the fiber architecture of 3D woven preforms. Two groups of samples were prepared and observed using micro‐computed tomography (Micro-CT) technology. Semantic segmentation of Micro-CT images was conducted using deep learning algorithm to create explicit models of different yarn systems. Two novel indicators were proposed for quantifying the changes of weft yarn position and warp/binder yarn path. This work clarifies the micro-scale deformation mechanisms of 3D woven structures. The influence of weaving parameters including weft density and weaving structure on the geometric variations of fiber structures was analyzed. The connection between weaving parameters and unit cell variations was established within the scope of this study. The conclusions of this paper would be helpful for the design of preforms with stable fiber structure.

EDUKASI MENENUN KEPADA ANAK SEKOLAH DASAR DI DUSUN BATANG PALLI, DESA SA’DAN TIROALLO

Toraja woven fabrics are work of the Toraja people. The weaving process can be lost if children are not given education about woven fabrics and how to make them. Their knowledge of how to make woven fabrics can arouse love and help the family economy. The woven fabrics produced can be sold to the market or to people in need. Based on the results of observations made, there are some children in Batang Palli Hamlet who know how to weave, but they don’t do the weaving process. Some people really don’t know how to weave, and they only know it as a parent’s job. This is what encourages education to the children who are there.

Cotton Weaving Waste Incorporation in PVC Composites

The largest amount of solid waste from the textile industries is mainly derived from fabric manufacturing until the cutting stage: hard fibers (spinning waste), beaming and soft fibers (weaving yarn waste), and off-cuts (cutting process). This research aimed to (i) conduct an exploratory interview with a large Brazilian cotton textile manufacturer to identify its main solid waste and corresponding destinations; and (ii) produce and evaluate PVC composites reinforced with cotton textile residues from the weaving process. Cotton fibrous reinforcements in the proportion of 2.5% (w/w) presented the best results of tensile strength and elongation concerning the others. Briquette residue (2.5%) had better dispersion in the matrix and slightly higher tensile strength when compared to other residues. The composites presented different visual aspects, and their use in fashion products with sustainable appeal could be a viable alternative. Therefore, additional tests should be performed to ensure the appropriate mechanical properties for applications in this and other areas.

Heald frame motion trajectory based on minimum warp friction in the shedding process of three-dimensional woven fabrics

The partial fiber breaking in the warp yarn of three-dimensional (3D) woven fabrics needs to be urgently reduced considering the large shedding displacement and repeated yarn frictions in the fabricating process. A kinematical model of the heald frame was established in order to analyze the impact and wear of the warp yarn in the shedding process of 3D weaving. The variation tendency of the friction force between the yarn and heddle eye was obtained and the variable acceleration trajectory of the heald frame based on minimizing the friction and impact load on the yarn was derived. The experimental results showed that the fiber breakage rate in one warp yarn using the derived curve trajectory reduced drastically. The research results are beneficial to the theoretical design of the shedding system of weaving machines for 3D woven fabric.

Peran Perempuan Pengerajin Tenun Ikat Dalam Meningkatkan Pendapatan Keluarga Desa Kajowair

<p>This research was conducted with the aim of looking at the role of women craftsmen of ikat craftsmen in increasing family acceptance and watching the outcrops linking the sites of women artisans in increasing family income in Kajowair Village, Hewokloang District, Sikka Regency. The type of research used is descriptive qualitative research. Data collection was carried out by observation, interviews, documentation. The data analysis technique uses three stages, namely: data reduction, data presentation and conclusion drawing. The results showed that the Role of Ikat Weaving Craftsmen in Kajowair Village in increasing family income was very helpful to fulfill family life. Where weaving can help the husband to earn a living to meet his family's daily needs. But even that is inseparable from the role of a woman as a wife, mother for her children and taking care of the household. As for the weavers, namely: Raw materials that are getting scarce, natural coloring materials that are difficult to obtain, the manufacturing process is complicated in which the dosage of the dye is uncertain so that the results are different and the weather is uncertain, which can hinder the weaving process.</p><strong>Keywords</strong>: The Role of Women, Ikat Weaving Craftsmen, Family Income

Multi-parametric investigation on the properties of powder-coated UHMWPE /LDPE towpreg manufactured through wet-electrostatic technique

The present work offers a novel technique (i.e., wet-electrostatic powder coating) to produce flexible non-conductive UHMWPE/LDPE towpreg to ease the weaving process for complex preform structures. Electrostatic powder coating is done onto non-conductive twistless UHMWPE tow unconventionally by introducing a surface modifier. The towpreg based composite imparts excellent interfacial property due to the pre-mingling of LDPE powder to UHMWPE tow. The single polymer towpreg gives high adhesiveness leading to improved interface bonding due to similar polymer classes. Box-Behnken response surface methodology is used to optimize the processing variables such as processing temperature (A), conveying air pressure (B), and gun nozzle angle (C) for output responses such as Bending rigidity (Br) and the Yarn tenacity (Yt) of the flexible towpreg. The multi-parametric equations have been obtained for the output responses Br and Yt separately which are in good agreement with the experimental results.

SIMBOL DALAM KAIN ULOS PADA SUKU BATAK TOBA

One of the tribes found in the western region of Indonesia, specifically North Sumatra, is the Batak Toba tribe. The Batak Toba tribe is one of the tribes which likes to do the weaving culture, making it one of the local wisdoms for the Batak Toba tribe, namely ulos cloth. Ulos is a traditional cloth obtained through a weaving process carried out by Batak women, producing various patterns. Each ulos cloth symbolizes a different message depending on the type and purpose of making the ulos cloth. The symbol carried by the ulos cloth is reflected in the patterns, patterns, and colors of the ulos cloth made on Martonun Ulos. Therefore, the types and meanings of each type of ulos cloth symbolize something from local wisdom for the Batak Toba tribe. The ulos cloth of the Batak Toba tribe symbolizes several meanings: ulos ragi hotang is usually used to ulos someone with the hope that God will give him the best results, and that person will be diligent in working. Ulos ragi is alive with colors, paintings, and patterns (ragi). giving the impression as if ulos is alive, so people call it live ragi, which is a symbol of life. Ulos sibolang with the ulosi procession is intended so that he is always careful with his family friends, and understands who should be respected, pays respect to all relatives of the wife's side, and as a sign of respect for his services while being the wife of the deceased. The local wisdom of ulos traditional weaving is an ancestral heritage that has high value and can strengthen national identity and identity that needs to be preserved by all parties to maintain the nation's cultural wealth.

Study of Aramid Yarns Sizing.

The process and efficiency of sizing aramid yarns before the weaving process was studied. The sizing was carried out under different conditions, with and without the pre-wetting of the threads before the actual sizing process. Two groups of yarns were tested. The first group consisted of five yarn samples that were blended with 95% meta-aramid and 5% para-aramid in counts of 20 × 2, 17 × 2, 14 × 2 and 12.5 × 2 tex. The second group of yarns consisted of three yarn samples that were blended with 93% meta-aramid, 5% para-aramid and 2% carbon in counts of 20, 20 × 2 and 17 × 2 tex. The inlet moisture of the yarn before sizing was 40% (with pre-wetting) and 4% (without pre-wetting), and the outlet moisture after drying was 4%. In order to carry out such tests to reproduce them, the sizing was carried out on a laboratory-sizing machine with the possibility of adapting to industrial conditions. According to the obtained results related to the properties of yarn before and after sizing, it can be concluded that sizing of aramid yarns is justified. When sizing the yarn without pre-wetting, the mechanical properties improved, especially breaking force, strength and abrasion resistance. Irregularity and hairiness were also reduced, especially when sizing with pre-wetting. Yarn hairiness or the frequency of protruding fibres also decreased with sizing in almost all samples and sizing conditions. The second group of yarns with a carbon fibre content mostly showed better mechanical properties before sizing, which continued after sizing. In general, the aramid yarn sized with pre-wetting showed certain deformations caused by stretching in the wet state and thus reduced the size pick-up, which caused less breaking forces and strength. Sizing with pre-wetting resulted in a slightly better smoothness of the thread and its higher evenness. It can be concluded that the aramid yarn should be sized with a lower size percentage (up to 4.5%), i.e., without pre-wetting in order to minimise the deformation of the yarn during sizing and thus improve the mechanical properties in the weaving process.

The Jargons Used by Tenganan Village People in Gringsing Weaving

Language is a system that mediates and types of vocalizations used by a community to communicate to understand each other. Language also has many varieties. This diversity is influenced by many factors, such as being influenced by a known place by age, gender, social status, and type of work. One variety of language is jargon. This study aims to analyze the jargon of meaning used by the people of Tenganan Village in weaving grinning. The design of this research is a qualitative descriptive design. The method used is observation and interviews. The observation method was carried out to observe the state of Tenganan village. The interview method was conducted to interview two weavers in Tenganan village to provide information regarding the jargon they use. The results showed that Tenganan Village people used fifty-six jargon to bring weaving. Based on fifty-six jargon, they are categorized into four types. The first type is jargon based on yarn processing, consisting of twenty jargon. The second type is jargon based on the weaving process, which finds three jargon. The third type is jargon based on naming tools and materials that find fifteen jargon. The fourth type is jargon based on the naming of eighteen motifs. Each jargon has a meaning that is used to facilitate communication between weavers in producing grinding weaving.