Effects of an UV-Absorber on the Light Fastness of Dyed Polylactide Fabrics

Mogi, Kimiyo; Kubokawa, Hiroh; Komatsu, Hideyuki; Nakamura, Takashi

doi:10.2115/fiber.59.198

Cited by 3 publications

(4 citation statements)

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“…Disperse Orange 25 and C.I. Disperse Orange 44 azo disperse dyes and reported an increase from 3.0 to 3.8 and 1.1 to 2.9, respectively, assessed by instrumental method [71]. On the other hand, the same UV absorber had detrimental effect on AQ disperse dyes such as C.I.…”

Section: Light Fastnessmentioning

confidence: 97%

Coloration of poly(lactic acid) based textiles - a review

Baig

2020

Polimery

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Polyester fibers include industrially important cellulose acetate, poly(ethylene terephthalate) (PET), poly(1,4-cyclohexane dimethylene terephthalate) (PCDT), poly(trimethylene terephthalate) (PTT), poly(lactic acid) (PLA) fibers; however, it is the last one that has been considered to be a "green" one. PLA is an eco-friendly polyester material that is obtained from renewable resources. The effect of chromophoregens and substituents on exhaustion, colorimetric and fastness properties of PLA with newly developed disperse dyes has been outlined. The differences in colorimetric properties, wavelength-shift and deep-dyeing behavior of PLA as compared to PET have been explained. Use of non-aqueous dyeing media such a super critical carbon dioxide (sc-CO 2), various organic solvents and carriers have been discussed.

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Section: Light Fastnessmentioning

confidence: 97%

Coloration of poly(lactic acid) based textiles - a review

Baig

2020

Polimery

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“…Disperse Red 60 and Red 127 [49]. It is concluded [49] that the UV absorber protected dyed PLA fabrics against photofading more effectively on lighter depths of shades than on heavier depth of shades.…”

Section: Color Fastnessmentioning

confidence: 96%

“…Mogi et al [49] studied the effects of an UV absorber of benzotriazole type on the light fastness of dyed PLA fabrics. The light fastness of PLA fabrics dyed with C.I.…”

Section: Color Fastnessmentioning

confidence: 99%

Overview of Poly(lactic acid) (PLA) fibre

2010

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Poly(lactic acid) (PLA) is an aliphatic polyester which can be derived from 100% renewable resources. PLA fi bres can be dyed with disperse dyes, just like PET fi bres, although a modifi ed wet processing processes are employed. A variety of wet processing applications (pretreatment, dyeing, clearing, and subsequent fi nishing treatments) that imparts the greatest chemical and physical effect on the PLA fi bres necessitate major attention. Part II of this review reviews the wet processing (pretreatment, dyeing, clearing, subsequent fi nishing treatments, washing etc.) of PLA fi bre and its effects on the fi bre. This was accomplished through a broad literature survey including recent research and development in the area.Poly(lactic acid) (PLA), the fi rst melt-processable natural-based synthetic fi bre produced from annually renewable resources [1,2], combines ecological advantages with excellent performance in textiles. It is an aliphatic polyester which can be derived from 100% renewable resources such as corn [3] (Fig. 1). The processability of PLA is equivalent to that of petroleum-based synthetic materials, where PLA polymer uses conventional polyester type fi bre melt spinning processes. PLA fi bres use conventional spinning machinery. PLA fabrics also use conventional dyeing and fi nishing machinery.PLA fi bres can be dyed with disperse dyes, just like PET fi bres, although modifi ed wet processing processes are employed. A variety of wet processing applications that imparts the greatest chemical and physical effect on PLA fi bres necessitate major attention. A better understanding of PLA fi bre and the possible effects of different wet processing treatments during production and after-care procedures during usage by the consumer is vital. Finding the best conditions and methods for wet processing and after-care applications for PLA-based textile products will increase the performance of this naturalbased melt-spinnable PLA fi bre. The aim of Part II of this review paper is to review the wet processing (pretreatment, dyeing, clearing, subsequent fi nishing treatments, washing etc.) of PLA fi bre and its effects on the fi bre. Poly(lactic acid) (PLA) fi bre and its production, properties, performance, environmental impact, and end-use applications were reviewed and summarized in the fi rst part of this review. Wet Processing of PLA fi bresPLA shows many properties that are similar to those of other synthetic fi bres. PLA fi bres can be manufactured by bulk dyeing before spinning using a polymer concentrate of the same dyes as for PET fi bres [4]. However, PLA requires modifi ed dyeing and fi nishing techniques to maximize its benefi ts. It can be dyed with disperse dyes, just like PET fi bres, under high temperature and pressure although a modifi ed dyeing method is employed since PLA has low affi nity to conventional watersoluble dyes [5]. Conventional processes and fi nishing technologies can be used for processing PLA fabrics [6]. The processing temperatures conventionally used for PET need to be red...

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“…The sol-gel method has been extensively used to synthesize nano-materials including nano-ZnO for its low cost, reliability, reproducibility, simplicity and relatively mild conditions of synthesis ("soft chemistry") [2]. Poly(lactic acid) (PLA) fiber has no aromatic ring [3], so it shows low absorbance and high transmittance to ultraviolet rays [4], which means good resistance to ultraviolet radiation. However, in the case of white or light color textiles, high transmittance of ultraviolet rays would do harm to human skin.…”

Section: Introductionmentioning

confidence: 99%

UV Protection and Antibacterial Properties of Knitted Poly(Lactic Acid) Fabric Coated with Nano-ZnO

Huang¹,

Liu

Guan

2015

Proceedings of the International Conference on Advances in Energy, Environment and Chemical Engineering

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Abstract. Nano-ZnO was successfully synthesized by a sol-gel method with an average size of 26.1 nm. The nano-ZnO was applied to coat the knitted poly(lactic acid) (PLA) fabric with or without further coating using a polyacrylate binder, and the UV protection ability and antibacterial activity of the coated fabric were determined. The results showed that coating with nano-ZnO alone was not able to impart good UV protection ability and antibacterial activity to the fabric, indicating the poor affinity of nano-ZnO to PLA fiber. The nano-ZnO sol coating followed by binder coating was able to give very high UV protection factor (38.3) and antibacterial activity (98.5%). The adhesive force of the binder contributed to the increased fixation of nano-ZnO on the fabric. In addition, the initial dosage of the binder had no significant impact on the UV protection ability of the fabric. IntroductionIn recent years, nano-ZnO has found its application in textile as UV blocker, antibacterial agent, fluorescent material, photo catalyst and so on [1]. The sol-gel method has been extensively used to synthesize nano-materials including nano-ZnO for its low cost, reliability, reproducibility, simplicity and relatively mild conditions of synthesis ("soft chemistry") [2]. Poly(lactic acid) (PLA) fiber has no aromatic ring [3], so it shows low absorbance and high transmittance to ultraviolet rays [4], which means good resistance to ultraviolet radiation. However, in the case of white or light color textiles, high transmittance of ultraviolet rays would do harm to human skin. This research aimed to improve the UV protection and antibacterial properties of PLA fabric with nano-ZnO. The nano-ZnO sol was first synthesized, and then used to coat PLA fabric by a pad-dry-cure process. Because nano-ZnO has no affinity to PLA fiber, a commercial polyacrylate binder was applied to improve the fixation of nano-ZnO on the fabric. In this work, the UV protection ability and antibacterial activity of the coated fabric were determined.

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Effects of an UV-Absorber on the Light Fastness of Dyed Polylactide Fabrics

Cited by 3 publications

References 0 publications

Coloration of poly(lactic acid) based textiles - a review

Coloration of poly(lactic acid) based textiles - a review

Overview of Poly(lactic acid) (PLA) fibre

UV Protection and Antibacterial Properties of Knitted Poly(Lactic Acid) Fabric Coated with Nano-ZnO

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