ABSTRACT
This thesis presents the findings of the investigation on the effects of some printing variables on the colour yield of reactive dye printed cotton fabric. The main print variables investigated are squeegee strokes, print paste viscosity, paste storage time and superimposed print. The printing pastes, (pastes A, B and C) used in this work were prepared using cassava starch, NaCl, NaOH and Procion reactive dye (Procion M); and were of different viscosities. The printing operation was carried out on the cotton fabric by using the squeegee to pull the print paste back and forth for each of the variables investigated. Qualities of prints were established by visual inspection. It was established that; the four variables investigated contribute in no small measure to the colour yield of reactive dye printed cotton fabric. Particularly, increase in squeegee strokes is related to colour yield as well as paste viscosity. The investigation has greatly improved the understanding of the relationship between some print variables and the desired print results.
TABLE OF CONTENT
Title Page i
Dedication ii
Certification iii
Acknowledgement iv
Abstract vi
Table of Contents vii
List of Tables ix
List of Figures x
CHAPTER ONE
1.0 Introduction 1
1.1 Background of the Study 1
1.2 Problem Statement 13
1.3 Objective of the Study 14
1.4 Justification of the Study 14
1.5 Scope of the Study 15
CHAPTER TWO
Literature Review 16
Reactive Dye 16
Cellulose 25
Reactivity of Dye and Cellulose 27
Printing Paste
CHAPTER THREE
3.0 Methodology
3.1 Materials
3.2 Apparatus
3.3 Methods
CHAPTER FOUR
4.0 Results and Discussions 52
4.1 Results 52
4.2 Discussion 58
4.3 Achievement/Contribution to Knowledge 62
CHAPTER FIVE
5.0 Conclusion and Recommendation 65
Conclusion Recommendation Reference
Appendix A
Appendix B
Appendix C
Ifeanyi, A (2021). Effects of Some Printing Variables on the Colour Yield of Reactive Dye Printed Cotton Fabric. Afribary. Retrieved from https://tracking.afribary.com/works/effects-of-some-printing-variables-on-the-colour-yield-of-reactive-dye-printed-cotton-fabric
Ifeanyi, Aluwuo "Effects of Some Printing Variables on the Colour Yield of Reactive Dye Printed Cotton Fabric" Afribary. Afribary, 22 Feb. 2021, https://tracking.afribary.com/works/effects-of-some-printing-variables-on-the-colour-yield-of-reactive-dye-printed-cotton-fabric. Accessed 08 Nov. 2024.
Ifeanyi, Aluwuo . "Effects of Some Printing Variables on the Colour Yield of Reactive Dye Printed Cotton Fabric". Afribary, Afribary, 22 Feb. 2021. Web. 08 Nov. 2024. < https://tracking.afribary.com/works/effects-of-some-printing-variables-on-the-colour-yield-of-reactive-dye-printed-cotton-fabric >.
Ifeanyi, Aluwuo . "Effects of Some Printing Variables on the Colour Yield of Reactive Dye Printed Cotton Fabric" Afribary (2021). Accessed November 08, 2024. https://tracking.afribary.com/works/effects-of-some-printing-variables-on-the-colour-yield-of-reactive-dye-printed-cotton-fabric