The influence of finishing agents on the performance of fibres during electrostatic flocking

Ingamells, W.; Ramadan, N. A.

doi:10.1111/j.1478-4408.1992.tb01460.x

Cited by 9 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nevertheless, in both cases, MFs and NFYs exhibited an increased flocking yield after a salt treatment and suffered from decreased flock yields at high RHs. These findings are consistent with those previously reported [ 12 , 15 ]. Based on these findings, fibers should be stored and flocked between RH 20–50%.…”

Section: Resultssupporting

confidence: 94%

“…demonstrated that hydrophobic and electrically insulative polymers could accumulate sufficient charge by utilizing conductive fractional fillers following principles of the Percolation Theory [ 12 , 14 ]. Another method to induce conductivity on a fiber surface may be the implementation of a salt-based system that ionizes under sufficient humidities [ 15 ]. It is well known that salt ions hold potential for increasing surface conductivity of objects and in solutions [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electrostatic flocking of salt-treated microfibers and nanofiber yarns for regenerative engineering

McCarthy

Avegnon

Holubeck

et al. 2021

Materials Today Bio

View full text Add to dashboard Cite

Electrostatic flocking is a textile technology that employs a Coulombic driving force to launch short fibers from a charging source towards an adhesive-covered substrate, resulting in a dense array of aligned fibers perpendicular to the substrate. However, electrostatic flocking of insulative polymeric fibers remains a challenge due to their insufficient charge accumulation. We report a facile method to flock electrostatically insulative poly(ε-caprolactone) (PCL) microfibers (MFs) and electrospun PCL nanofiber yarns (NFYs) by incorporating NaCl during pre-flock processing. Both MF and NFY were evaluated for flock functionality, mechanical properties, and biological responses. To demonstrate this platform's diverse applications, standalone flocked NFY and MF scaffolds were synthesized and evaluated as scaffold for cell growth. Employing the same methodology, scaffolds made from poly(glycolide-co- l -lactide) (PGLA) (90:10) MFs were evaluated for their wound healing capacity in a diabetic mouse model. Further, a flock-reinforced polydimethylsiloxane (PDMS) disc was fabricated to create an anisotropic artificial vertebral disc (AVD) replacement potentially used as a treatment for lumbar degenerative disc disease. Overall, a salt-based flocking method is described with MFs and NFYs, with wound healing and AVD repair applications presented.

show abstract

Section: Resultssupporting

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Electrostatic flocking of salt-treated microfibers and nanofiber yarns for regenerative engineering

McCarthy

Avegnon

Holubeck

et al. 2021

Materials Today Bio

View full text Add to dashboard Cite

show abstract

“…Flocking was first used by the French to produce flocked wallpapers 200 years ago, and it has achieved great developments during the last 20 years by the addition of electrostatics, which is the so called electrostatic flocking. 1 Electrostatic flocking is also a special surface finish technique, involving the fixation of very short fibers (referred to as piles) on a substrate coated with adhesive applying high voltage fields, [2][3][4][5] as shown in Figure 1. The piles are first charged by corona discharge and polarization charge in an electrostatic field, and then move in either translation or rotation toward the substrate.…”

Section: Introductionmentioning

confidence: 99%

Optimal design of superfine polyamide fabric by electrostatic flocking technology

Liu

Xie

Cheng

et al. 2010

Textile Research Journal

View full text Add to dashboard Cite

The use of superfine fibers as piles to produce flocked fabrics is underreported despite their excellent properties. Therefore, a superfine polyamide fiber was used for piles to produce flocked fabric in this study, and a full factorial design was employed with three design factors at three levels to optimize the process parameters in terms of flocking density. The flock density is found, experimentally, to increase with the decrease of flocking distance and the increase of field strength and flocking time. A ternary linear equation is also established in this study based upon the regression analysis on experimental results and verified by F-test showing that it has remarkable significance. Comparison with experimental values shows that the regression equation possesses high accuracy. The optimum parameters are empirically and experimentally determined as: flocking distance of 7 cm, field strength of 60 kV, and flocking time of 10 s.

show abstract

Polyamides, Fibers

Anton¹

2000

Kirk-Othmer Encyclopedia of Chemical Technology

View full text Add to dashboard Cite

Polyamide fibers are melt‐spun from linear thermoplastic polymers having recurring amide groups made from diamines and dicarboxylic acids or lactams. Polymer made by the polycondensation of hexamethylenediamine and adipic acid is designated nylon‐6,6; that made from ε‐caprolactam, nylon‐6. These polymers account for about 98% of the total 3.9 million tons of worldwide production of nylon fiber. The attributes of nylon fiber, such as high strength, durability, abrasion resistance, resilience, ease of dyeability, and low specific gravity, have been recognized since its introduction in 1938. Both the inherent properties and those properties that can be engineered into the fiber through manufacturing and ultimately into the fabric article in downstream mill processing account for the diverse end uses of nylon. These include hosiery, lingerie, skiwear, activewear, swimwear, carpets, tire cord, luggage, upholstery, automotive air bags, interliners, and military uniforms. Nylon fiber is manufactured by extruding molten polymer through a filter pack multihole spinneret assembly and then drawing (or stretching) the filaments as a separate or continuous process to fix the size and physical properties (tenacity, elongation modulus) of the filaments (or yarn) for a particular end use. The product is offered as continuous flat yarn or, through additional manufacturing steps, as crimped staple, tow, or precision‐cut flock. Continuous‐filament (flat) yarn can be used as is, or, for most applications, textured for bulk and/or stretch. Physical appearance, functionality, and performance of nylon filaments can be modified by incorporating additives, eg, delusterants, colorants, antioxidants, and antistats, in the polymer or directly to the melt stream prior to extrusion, by designing a spinneret hole to impart a desired luster or surface effect or by spinning bicomponent or biconstituent fibers. Very fine fibers (0.2 dtex = 0.18 den), are made by spinning biconstituent conjugate fibers with nylon and polyester and dissolving the polyester in an alkali fabric treatment. The introduction of direct melt‐spun 0.88–2.22‐dtex (0.8–2.0 den) nylon products in the mid‐ to late‐1980s had a significant positive effect on the apparel market. Other breakthrough technologies, such as high speed spinning of partially oriented yarns for draw texturing, nylon‐4,6 for industrial yarn applications, soil‐ and stain‐resistant nylon carpets, utilization of available 47–93‐tex (420–840‐den) industrial yarns for an emerging automotive air bag industry, have all contributed to the growth of nylon fibers since the 1980s. The commitment made by the textile industry to recycle fibers and fabrics and to conserve materials and minimize landfilling in compliance to regulatory legislation will have a profound effect on how fiber producers design their offerings for the future.

show abstract

The influence of finishing agents on the performance of fibres during electrostatic flocking

Cited by 9 publications

References 6 publications

Electrostatic flocking of salt-treated microfibers and nanofiber yarns for regenerative engineering

Electrostatic flocking of salt-treated microfibers and nanofiber yarns for regenerative engineering

Optimal design of superfine polyamide fabric by electrostatic flocking technology

Polyamides, Fibers

Contact Info

Product

Resources

About