Investigation of Shade Darkening Property of Polydimethylsiloxane and Poly (Dimethyl/Diphenyl Siloxane) Modified with Amino Groups on Dyed Textiles 


Vol. 24,  No. 12, pp. 4213-4227, Dec.  2023
10.1007/s12221-023-00395-2


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  Abstract

This study aimed to investigate the capability of two silicon-based resins, namely Polydimethylsiloxane (PDMSiA) and Poly (dimethyl/diphenyl siloxane) modified with amino groups (PDMDPhSiA), to induce a visible shade-darkening effect when applied as finishing agents on black-dyed polyester and cotton fabrics. The process involved the utilization of deepening agents with a low refractive index to achieve this visual darkening effect. The analysis encompassed several aspects. FTIR spectroscopy was employed to characterize the chemical structure of the synthetic products. The refractive indexes were quantified using the Swaneopeol method. To gauge the effectiveness of the treatment, the color depth of the treated fabrics was assessed using parameters such as color yield (K/S) and the ratio of the difference in lightness (DL*) to the overall color difference (ΔEab*). Moreover, the study delved into the fastness properties of the dyed fabrics after the finishing process. Comparatively, the results highlighted that the use of PDMSiA resin led to an enhanced color depth in the finished fabrics, outperforming the effects of PDMDPhSiA resin. The evaluation of color fastness demonstrated significant improvements across the board, with all samples achieving a grade of 5 or higher. The study determined that the optimal conditions for applying both resins involved a concentration of 20%, a pick-up rate of 85%, and a curing temperature of 180 °C. These conditions yielded the most favorable outcomes in terms of achieving the desired shade-darkening effect on the dyed fabrics.

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  Cite this article

[IEEE Style]

M. Safi, F. Gheisar, F. Najafi, B. S. Hadavand, "Investigation of Shade Darkening Property of Polydimethylsiloxane and Poly (Dimethyl/Diphenyl Siloxane) Modified with Amino Groups on Dyed Textiles," Fibers and Polymers, vol. 24, no. 12, pp. 4213-4227, 2023. DOI: 10.1007/s12221-023-00395-2.

[ACM Style]

Mahdi Safi, Fahime Gheisar, Farhood Najafi, and Behzad Shirkavand Hadavand. 2023. Investigation of Shade Darkening Property of Polydimethylsiloxane and Poly (Dimethyl/Diphenyl Siloxane) Modified with Amino Groups on Dyed Textiles. Fibers and Polymers, 24, 12, (2023), 4213-4227. DOI: 10.1007/s12221-023-00395-2.

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pISSN : 1229 - 9197
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