بهینه‌سازی خواص رنگپذیری پارچه‌ پلی‌استر/ ویسکوز با استفاده از پیش عملیات کرونا و قلیایی با روش آماری طرح مرکب مرکزی (CCD)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشکده مهندسی نساجی‌ و پلیمر، واحد یزد، دانشگاه آزاد اسلامی، یزد، ایران

2 دانشکده مهندسی نساجی‌ و پلیمر، واحد یزد، دانشگاه آزاد اسلامی ، یزد، ایران

3 گروه طراحی پارچه و لباس، دانشکده هنر و معماری، واحد یزد، دانشگاه آزاد اسلامی ، یزد، ایران

چکیده

در این تحقیق تأثیر فرآیند کرونا و عملیات قلیایی بر خواص و بهبود میزان جذب رنگ در پارچه‌های پلی استر ویسکوز رنگ شده با رنگ دیسپرس قرمز 50، با استفاده از روش آماری طرح مرکب مرکزی مورد مطالعه قرار گرفت. در ابتدا نمونه ها تحت عملیات قلیایی در شرایط مختلف دما، زمان و غلظت و سپس تحت عملیات کرونا با ولتاژ 1± 104 ولت و60/3 ± 20 آمپر در بازه زمانی مختلف قرار گرفتند و در ادامه با استفاده از رنگ دیسپرس ، در دمای HT رنگرزی شدند . همچنین میزان جذب رنگ نمونه ها با روشهای اسپکتروفتومتری جذبی و انعکاسی مورد تجزیه و تحلیل قرار گرفته شد. ضمناً تغییرات مورفولوژی سطحی نمونه‌ها نیز با استفاده از میکروسکوپ الکترونی پویشی (SEM) و بررسی گروههای عاملی با استفاده از اسپکتروسکوپی جذبی مادون قرمز (FTIR) انجام شد و شرایط بهینه حاصل از آزمایشات با استفاده از طرح آماری مرکب مرکزی انتخاب شدند. نتایج آزمایشات نشان داد که نمونه های عمل شده دارای ثبات نوری و شستشویی مناسب بوده و بدلیل انجام عملیات همزمان قلیایی و کرونا موجب شد تا سطح الیاف دارای شیارهای سطحی شود، منافذی مناسب برای نفوذ بیشتر رنگینه به داخل الیاف،که در تصاویر SEM و نیز تغییرات کسب شده در نمودار FTIR و ایجاد گروههای عاملی جدید نشان داده شد. در پایان نتایج طرح آماری نشان داد که مدل حاصله با F Value برابر با 65/2، از لحاظ آماری معنی دار می‌باشد و شرایط بهینه مورد نظر جهت کسب بالاترین مقدار رمق کشی (45/75%) کسب شد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Optimization of Dyeing Properties of Polyester / Viscose Fabric Using Corona and Alkaline Pre-Treatment by Central Composite Design (CCD) Method

نویسندگان [English]

  • Elnaz doshanbehpour 1
  • Mohammad Mirjalili 2
  • Ali Nazari 3
  • Hamid Akbarpour 1
1 Department of Textile and Polymer Engineering , Yazd Branch, Islamic Azad University, Yazd, Iran
2 Department of Textile and Polymer Engineering , Yazd Branch, Islamic Azad University, Yazd, Iran
3 Department of Textile and Clothing Design, Faculty of Art and Architecture, Yazd Branch, Islamic Azad University, Yazd, Iran
چکیده [English]

In this study, the effect of Corona and alkaline pre-treatments on dyeing properties and improvement of dye absorption in Polyester/Viscose fabrics with using Red Dispersion 50 dye studied the Central Composite Design(CCD) method. And then, first samples were subjected to alkaline treated in different conditions of temperature, time and concentration and then Corona treatment with a voltage of 104 ±1 V and 20 ± 3.6 (A) in different times and then Dispersion dye, in HT temperatures method were dyed. Also, the rate of dye absorption of the samples were analyzed by absorption and reflection spectrophotometry methods. In addition, changes in the surface morphology of the samples were investigated with using Scanning Electron Microscopy (SEM) method and study of functional groups was performed using infrared absorption spectroscopy (FTIR) and optimization of condition obtained from experiments were selected with using CCD method. The results of the experiments showed that the treated samples had good optical and washing stability, and due to the simultaneous treatment of alkali and Corona, the surface of the fibers had surface grooves and this pores is sutable for more dye penetration into the fibers, which in SEM confirmed and obtained changes were shown in the FTIR diagram and the creation of new functional groups. At the end of the statistical design, the results showed that the model with F Value equal to 2.65, is statistically significant and the optimal conditions for obtaining the highest amount of Exhaustion (75.45%) was obtained.

کلیدواژه‌ها [English]

  • Polyester / viscose fabric
  • alkaline pretreatment
  • corona discharge
  • reflecting spectrophotometer
  • central composite statistical design (CCD)

مراجع

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سابقه مقاله

  • تاریخ دریافت: 25 مرداد 1399
  • تاریخ بازنگری: 23 شهریور 1399
  • تاریخ پذیرش: 26 شهریور 1399

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