Three-dimensional knitted textiles

Liu, Yanping; Hu, Hong

doi:10.1016/b978-1-78242-214-3.00006-1

Cited by 8 publications

(5 citation statements)

References 21 publications

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“…The elastic yarn allows the spacer fabric to shrink after it is released from the knitting machine which will increase its thickness and compression susceptibility. The use of different amounts and thicknesses of elastic yarns in the surface layers can affect the compression properties of spacer fabrics [18]. However, changing yarn not only takes time, but may also require adjustments in the stitch density and machine settings.…”

Section: Introductionmentioning

confidence: 99%

Effect of inlaid elastic yarns and inlay pattern on physical properties and compression behaviour of weft-knitted spacer fabric

Sukigara

Takeuchi

2020

Journal of Industrial Textiles

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Spacer fabrics are commonly used as cushioning materials. Their compression properties are one of the most important concerns in determining their specific end-use. Therefore, it is time and cost- efficient to have another means available that could allow quick and easy modifications to the compression behaviour of spacer fabrics and control them too. In this study, a method that uses an elastic inlay is adopted to modify the physical and compression properties of spacer fabrics. Fifteen samples constructed with different spacer structures and inlay yarns and patterns were fabricated and then evaluated. The results show that spacer fabrics with different thicknesses, densities and compression behaviours can be obtained by using different inlay patterns and elastic yarns. Increasing the number of miss stitches in the inlay pattern can help to increase the thickness and stiffness of spacer fabric and withstand a higher compression strength. However, when the number of miss stitches further increases to 3 miss stitches between every tuck stitch, the irregularity of the spacer structure would increase and could show adverse effects to certain spacer structures. The spacer fabric made by incorporating an elastic inlay can retain air permeability and a lower fabric weight than that made by the knit stitches of elastic yarns together with the surface yarns. By changing the inlay pattern, a spacer fabric with different compression behaviours in different areas of the same fabric can be realised. This novel method can increase the flexibility of creating a spacer fabric with the desired properties.

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Section: Introductionmentioning

confidence: 99%

Effect of inlaid elastic yarns and inlay pattern on physical properties and compression behaviour of weft-knitted spacer fabric

Sukigara

Takeuchi

2020

Journal of Industrial Textiles

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“…All the techniques except Tubular knit. (Liu &Hu, 2015) 2008); (Ray, 2011) 6. Understanding feasibility (shape and size) Once these parameters have been selected, is possible to verify the feasibility of the product, in terms of shape and size, based on what the machine can produce.…”

Section: Guidelines Applications: 3d Knitted Lounge Chairmentioning

confidence: 99%

“…All the techniques except 3D structures and Spacers (Au, 2011); (Liu & Hu, 2015) Threedimensional Knit Complex shapes; Software simulation is recommended.…”

Section: Guidelines Applications: 3d Knitted Lounge Chairmentioning

confidence: 99%

3D knitting for upholstery: guidelines to design at the interface of sustainable fashion and furniture.

Cerulo¹,

Papile²,

Motta³

et al. 2022

Human Factors for Apparel and Textile Engineering

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Textile products, a synthesis of the complex relationship between physical and sensory characteristics, have always played a fundamental role in the culture of furniture design projects. Like many other production sectors, the furniture one in recent years has been called to meet the growing demand for conversion to sustainability both in terms of processes and raw materials, since most of the time disassembly is very difficult and the padding material is generally difficult to reuse, recycle, or recover when furniture pieces are dismissed. 3D knitting allows reducing the productive steps, consequently, i.e. reducing the supply chain. Moreover, it allows the development of local and on-demand production systems and, lends itself to the use of recycled materials. Finally, at the end of life of furniture pieces, the above-mentioned technology facilitates the recycling of yarns and drastically reduces the possibilities of exploitation of labor. In addition, the use of this process in furniture design has the potential to answer to the strong demand for circularity that the furniture sector is asking for. This research focuses on the relationship between innovative textile technological processes and furniture design (upholstered sofas and armchairs in particular). This study aims to investigate how the 3D knitting process, can contribute in terms of sustainable production in the furniture sector. The technological transfer has been studied either in literature and with direct dialogue with industrial 3D knitting experts. Through this research, it has been possible to demonstrate that the process is not limited to reducing production waste but also to bringing environmental, economic, and social benefits. In fact, 3D knitting allows companies to reduce the size of the product during transport, meeting the trend of flat packaging, allowing the replacement of polyurethane foams in upholstery with recycled and recyclable materials and ultimately leading to a different conception of the furniture product. 3D knitting brings the designer to conceive furniture in a completely new and different way, simple and easy to disassemble, factors that are fundamental principles of circularity design. To provide an output that was not only illustrative but also functional to the designer, in the second part of the research, some specific design guidelines for 3D knitted upholstery have been defined. The guidelines have been established through an overview of the basics of knitwear, the explanation of the machines and their operations, case studies and samples collection, and interactions with 3D knitting industries. Thanks to these guidelines it is possible to guide the designer in the early stages of the development of a 3D knitted product. A final case study on the guidelines application is also provided. This research has allowed to shed light on a process still little known in the world of product design, identifying the potential for the creation of circular products, especially in the furniture sector, and helping designers approach this technology.

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“…The performance of knitted fabric depends not only on the strength of the constituent materials, but also on the internal structural geometry [7]. Single layered knitted fabrics provide insufficient cut resistance, which emerged the idea of stacking multiple layers [16] or to design double layered and 3D knitted structures for protective clothing [1,13,[22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Research of 3D weft-knitted fabrics designed to protect against mechanical risks and suitable for contact with skin

Krauledaitė

Ancutienė

Krauledas

et al. 2020

Journal of Industrial Textiles

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Eight different 3D weft-knitted fabrics, consisting of outer, binding, and inner layers, were designed and produced on E20 and E28 circular weft-knitting machines. First, in the outer layer, high molecular weight polyethylene multifilament yarns and steel wire (0.05 mm diameter), twisted with high molecular weight polyethylene multifilament yarns, were used because of their exceptional properties to resist the mechanical risks. Second, in the inner layer, hydrophobic polyester spun yarns were chosen for their suitability to be used in contact with skin. Finally, in the binding layer, synthetic elastic textured polyamide yarns were used to connect the outer and inner layers. Following the standard EN 388, diverse tests were conducted to determine the resistance of the developed 3D weft-knitted fabrics to mechanical risks, i.e., circular blade cut, puncture, abrasion, and tear. The analysis showed that the quantity of steel wire in knitted structure highly influences circular blade cut and abrasion resistance, and moderately influences tear resistance for all the investigated knitted fabrics. While a strong positive correlation between the quantity of steel wire and the puncture force was defined only for 3D fabrics knitted on an E20 circular weft-knitting machine. The findings of the research lead to the conclusion that the designed 3D weft-knitted fabric structures, where the outer layer ensures protection against mechanical risks, while the inner layer is designed for contact with skin, provide complex protection against diverse mechanical risks.

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Three-dimensional knitted textiles

Cited by 8 publications

References 21 publications

Effect of inlaid elastic yarns and inlay pattern on physical properties and compression behaviour of weft-knitted spacer fabric

Effect of inlaid elastic yarns and inlay pattern on physical properties and compression behaviour of weft-knitted spacer fabric

3D knitting for upholstery: guidelines to design at the interface of sustainable fashion and furniture.

Research of 3D weft-knitted fabrics designed to protect against mechanical risks and suitable for contact with skin

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