پیش‌بینی انعکاس پارچه نایلونی خیس با استفاده از مدل هندسی و تئوری کیوبلکا-مانک

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه مهندسی نساجی، دانشکده فنی، دانشگاه گیلان، رشت، ایران، کدپستی: 4199613776

10.30509/jcst.2025.167444.1249

چکیده

خیس شدن پارچه باعث تغییر رنگ آن می‌شود. بنابراین، برای کنترل رنگ پارچه در فرایند رنگرزی، پیش‌بینی رنگ پارچه در حالت خیس بسیار مهم است. در این مقاله از مدل هندسی برای پیش‌بینی طیف انعکاسی پارچه نایلونی خیس بر اساس طیف انعکاسی حالت خشک آن استفاده شد. برای این منظور، نمونه‌های پارچه نایلونی با رنگزای اسیدی قرمز، آبی و زرد به صورت تکی و مخلوط رنگرزی شدند. آنالیز عامل‌های رنگی نمونه­ها نشان داد خیس شدن سبب تغییر رنگ، کاهش روشنایی و افزایش عمق رنگی پارچه می‌شود. از یک مدل هندسی و کیوبلکا-مانک، برای پیش‌بینی طیف انعکاسی پارچه نایلونی خیس استفاده شد. به منظور پیش‌بینی انعکاس پارچه در حالت خیس به روش مدل هندسی، از مقادیر ضریب جذب مولار رنگزا (ɛ)، ضریب جذب مولار رنگزا اصلاح شده، k/s واحد و k/s واحد اصلاح شده استفاده شد. خطای پیش‌بینی بر حسب اختلاف رنگ (ΔECMC) در چهار روش پیش­بینی، استفاده از مقادیر ضریب جذب مولار رنگزا، ضریب جذب مولار رنگزا اصلاحی، k/s واحد و k/s واحد اصلاح شده، به ترتیب 18.69، 15.51، 6.87 و 5.71 است. بهترین پیش‌بینی توسط مدل هندسی با استفاده از k/s واحد اصلاح ‌شده به دست آمد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Prediction of the Reflectance of Wet Nylon Fabric Using the Geometric Model and Kubelka-Munk Theory

نویسندگان [English]

  • Sanaz Tofighi
  • Ali Shams nateri
Department of Textile Engineering, University of Guilan, P.O. Code: 4199613776, Rasht, Iran
چکیده [English]

Wetting the fabric changes its color; therefore, to control the fabric's color in the dyeing process, it is crucial to predict the fabric's color in its wet state. In this article, a geometric model was used to predict the reflectance spectra of wet nylon fabric based on the reflectance spectra of its dry state. For this purpose, nylon fabric samples were dyed individually and in mixtures with red, blue, and yellow acid dyes. Analysis of the color parameters of the samples shows that wetting causes color change, a decrease in lightness, and increases in color depth of the dyed fabric. To predict the fabric's reflectance in the wet state using the geometrical model, the molar absorption coefficient of the dye (ɛ), modified molar absorption coefficient (ɛ), unit k/s, and modified unit k/s values were utilized. The prediction error according to color difference (ΔECMC) in four prediction methods, using molar absorption coefficient (ɛ), modified molar absorption coefficient (ɛ), unit k/s, and modified unit k/s, were 18.69, 15.51, 6.87, and 5.71, respectively. The best prediction was achieved by the geometrical model using the modified unit k/s.

کلیدواژه‌ها [English]

  • Prediction Reflection Wetting Geometric Model Kubelka
  • Munk Color

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