• Title/Summary/Keyword: dyeable polypropylene

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Effect of Heat Setting on Physical Properties of Dyeable Polypropylene Fabric (Dyeable polypropylene 직물의 열처리에 따른 물성변화)

  • Lee, Shin-Hee
    • Fashion & Textile Research Journal
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    • v.11 no.3
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    • pp.481-487
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    • 2009
  • The purpose of this study is to improve the defects of dyeable polypropylene(DPP) fabric by heat setting and to describe the change of physical properties of DPP fabrics. The thermosetting was carried out in autoclave from 100 to $140^{\circ}C$ temperature range for 2 min. In this study, we investigated the effect of the thermosetting temperatures on the structural, thermal, mechanical properties(e.g., the strength and elongation) and dyeability of DPP fabrics. The melting energy(J/g), the tensile strength was found to increase with increasing temperature of thermosetting. The diffraction peak at Bragg angle($2{\theta}$) about $13.8^{\circ}$ were very strong and diffraction intensity increased with increasing thermosetting temperatures. And d-spacing and half-width decreased with increasing thermosetting temperatures. On the other hand, the dyeability(K/S) and crease recovery decreased with an increasing thermosetting temperatures.

Dyeing Characteristics of Heat-generating Acrylate/Dyeable Polypropylene Blended Knit (흡습발열 Acrylate/Dyeable Polypropylene 섬유 방적사 편물의 염색 특성)

  • Lee, Eui-jae;Park, Chae-eun;Kim, Keun-hyeong;Lee, Chang-seok;Choi, Jae-hong
    • Textile Coloration and Finishing
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    • v.29 no.1
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    • pp.1-10
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    • 2017
  • Blended knit with two or more fiber has various dyeing characteristics depending on dyeing method because of different material properties of them. In this paper, newly developed blended knit was used. It was composed by Acrylate fiber and Dyeable polypropylene(DPP) fiber. As result of build-up dyeing test, acid dyes and disperse dyes respectively had good dyeabilities on 1% o.w.f. with Acrylate fiber and DPP fiber. Compatibility of trichromatic of disperse dyes was generally good for most dyes investigated and their critical absorption range were between $120^{\circ}C$ and $130^{\circ}C$. As depending on dyeing methods, there were many differences in dyeability. It was confirmed that 1-bath-1-step dyeing was most suitable when considering dye exhaustion yield and levelling property. Wash, rubbing and light fastness of knits were generally good in most dyes.

Improving Hydrophilic and Finishing Performance of Dyeable PP through Atmospheric Pressure Plasma Treatment (플라즈마 처리를 통한 가염PP의 친수화도 및 가공성능 향상)

  • Cho, Hang Sung
    • Textile Coloration and Finishing
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    • v.34 no.3
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    • pp.165-172
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    • 2022
  • Polypropylene(PP) is a textile material with various functions such as eco-friendliness, lightness, and elasticity. Although most synthetic fibers can be dyed and finished, but original PP is difficult to dye or finish due to its extremely hydrophobic properties, so its application expansion is limited. In order to solve this problem, dyeable PP was developed, and various researches on textiles for clothing such as mass production technology, fine fiberization and performance improvement are in progress. Plasma treatment is a processing method for modifying the surface of fabrics, and has effects such as hydrophilization, deepening color, improving adhesion, and surface polymerization. In this study, plasma treatment was applied to study changes in hydrophilization properties of dyeable PP, surface changes before and after plasma treatment and performance according to hydrophilization.

Imparting Disperse and Cationic Dyeability to Polypropylene through Melt Blending

  • Teli M. D.;Adivarekar R. V.;Ramani V.Y.;Sabale A.G.
    • Fibers and Polymers
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    • v.5 no.4
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    • pp.264-269
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    • 2004
  • The present paper deals with improvement in disperse dyeablility as well as imparting of cationic dyeablility to difficultly dyeable polypropylene by a melt blending technique. Isotactic polypropylene (PP) was blended with fibre grade polybutylene terephthalate (PBT), cationic dyeable polyethylene terephthalate (CDPET) and polystyrene (PS), individually. The resulting binary blends were spun and drawn into fibres at draw ratio 2, 2.5, and 3. The compatibility of blends, structural changes of fibres in terms of X-ray crystallinity, relative crystallinity, sonic modulus, birefringence and thermal stability were examined. The blended fibres were found to be disperse dyeable by the conventional method of high temperature and high pressure dyeing. And this dye ability increased with increase in the level of substitution. PP/CDPET blend also exhibited dyeablility with cationic dyes in addition to that with disperse dyes. The optimum level of blending was predicted keeping in view of tenacity and thermal stability of melt blend fibres. The wash fastness properties of the dyed fibres were found to be of high rate.

Dyeing Properties of Blanket Fabric of Dyeable Polypropylene

  • Kim, Hyun-Jin;Lee, Jin-Ah;Chang, Young-Min;Park, Jong-Ho;Kim, Sung-Dong
    • Textile Coloration and Finishing
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    • v.19 no.2
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    • pp.36-43
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    • 2007
  • Dyeing and fastness properties of a dyeable PP fiber were examined with four different types of disperse dyes. It was found that the dyed PP fiber could be cleared by soaping without using sodium hydrosulphite, and that the heat setting above $140^{\circ}C$ resulted in the melting of the PP fiber. The rates of dyeing and the extents of exhaustion of three primary E type dyes were different with each other, the apparent color strength did not increase with increasing dye concentration, and color fastness to washing was not satisfactory. In the cases of both high wash fastness and high light fastness dyes, the rates of dyeing were slow and the extents of exhaustion were very low. On the other hand, the dyeing rates of three primary S type dyes were similar and the build-up properties were good with good color fastnesses. It might be concluded that the best disperse dyes for the dyeable PP fiber were S type dyes.

A Study on the Dyeing Property of EVA Blended Polypropylene Fiber (EVA로 Blending된 Polypropylene Fiber의 염색성에 관한 연구)

  • 장철민;임상규;김삼수;손태원;서말용
    • Textile Coloration and Finishing
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    • v.10 no.5
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    • pp.13-18
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    • 1998
  • Polypropylene-ethylene/vinyl acetate copolymer (PP-EVA) blends were prepared by mechanical blending using relatively semi-crystaline ethylene-vinyl acetate copolymer and polypropylene. In order to obtain dyeable PP fiber, PP-EVA blends were prepared using below 10wt.% of EVA and formed a filament by the melt spinning method. The resultant fibers had tensile strengh of 2∼3g/d, elongation of 330∼600%, initial modulus of 22∼46g/d, and exhibited markedly improved dyeing property.

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Dyeing Properties of PET/Dyeable PP Double Knit Fabric (PET/가염PP 이종 편성물의 염색 특성)

  • Chang, Young-Min;Lee, Jin-Ah;Park, Jong-Ho;Koh, Joon-Seok;Jung, Young-Jin;Kim, Sung-Dong
    • Textile Coloration and Finishing
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    • v.20 no.2
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    • pp.53-58
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    • 2008
  • New dyeable PP fiber and several products from it has been developed through dispersing polyester copolymer into PP resin by a Korean synthetic fiber manufacturer and its colleagues. The dyeing properties of PET/dyeable PP double knit fabric were examined with three different types of disperse dye in this study. It was found that the disperse dye, exhausted on dyeable PP at early stage of dyeing, migrated to PET at elevated dyeing temperature when two fibers were dyed in the same dye bath. The ratios of dye distribution between two substrates dyed at $120^{\circ}C$ and $130^{\circ}C$ showed no difference. S type disperse dyes showed good build-up properties and acceptable color fastness while high light fastness type exhibited the lowest amounts of exhaustion but excellent color fastness. It might be concluded that the most appropriate dye for PET/dyeable PP double knit fabric was S type, and that some color difference between PET side and dyeable PP side was unvoidable.