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Author: D. A. Derrett-Smith Publisher: Elsevier ISBN: 1483164594 Category : Technology & Engineering Languages : en Pages : 120
Book Description
The Identification of Vat Dyes on Cellulosic Materials focuses on the determination of the dyeing class of all the dyes usually found on cellulosic materials, which is a another method of distinguishing between reactive and other classes of dyes on these materials. This book discusses the characteristics of vat and soluble vat dyes. Organized into six chapters, this book starts with an overview of the various methods of preparing the five reagents used in the tests, namely, alkaline hydrosulfite, acid hydrosulfite, nitric acid, sulfuric acid, and acid potassium permanganate. This text then describes the various tests that are found reliable in determining the different types of dyes. Other chapters examine the rate of oxidation of all the available blue dyes, which are classified into four major subdivisions. The final chapter deals with the identification of indigo blue dyes wherein the distinctions can be made by means of nitric acid in a similar manner. This book is a valuable resource for dye manufacturers.
Author: D. A. Derrett-Smith Publisher: Elsevier ISBN: 1483164594 Category : Technology & Engineering Languages : en Pages : 120
Book Description
The Identification of Vat Dyes on Cellulosic Materials focuses on the determination of the dyeing class of all the dyes usually found on cellulosic materials, which is a another method of distinguishing between reactive and other classes of dyes on these materials. This book discusses the characteristics of vat and soluble vat dyes. Organized into six chapters, this book starts with an overview of the various methods of preparing the five reagents used in the tests, namely, alkaline hydrosulfite, acid hydrosulfite, nitric acid, sulfuric acid, and acid potassium permanganate. This text then describes the various tests that are found reliable in determining the different types of dyes. Other chapters examine the rate of oxidation of all the available blue dyes, which are classified into four major subdivisions. The final chapter deals with the identification of indigo blue dyes wherein the distinctions can be made by means of nitric acid in a similar manner. This book is a valuable resource for dye manufacturers.
Author: Dianne N. Epp Publisher: Palette of Color Monograph Ser ISBN: 9781883822057 Category : Education Languages : en Pages : 0
Book Description
From prehistoric times people have been fascinated with color; from cave paintings to the latest computers, color has been a constant companion. Textiles are made more beautiful by the alteration or application of colorants. This teaching resource investigates vat dyes, a colorant class which includes the oldest dyes known as well as important contemporary dyes of synthetic fibers. Background and historic information is given regarding various vat dyes, with emphasis upon the chemistry of these dyes. Problem-solving inquiry-based activities involve high school level students in answering questions posed about the dyes and their uses. The text is organized in two parts. Part 1, "Teacher Background Information," includes a review of pertinent content, notes, setups for five activities, and cross curricular activities to supplement the science oriented activities. Part 2, "The Classroom Materials," includes student handouts and overheads. (MM)
Author: J N Chakraborty Publisher: CRC Press ISBN: 9380308477 Category : Technology & Engineering Languages : en Pages : 569
Book Description
This is a comprehensive book that imparts technological skills about the colouration of textiles. It discusses academic as well as shop-floor aspects of colouration. It also covers eco-friendly enzymatic processing and differential coloured effects.
Author: N. N. Mahapatra Publisher: CRC Press ISBN: 9385059602 Category : Technology & Engineering Languages : en Pages : 216
Book Description
Textile Dyes has its each chapter simplified into the major classes of dyes. The author has dealt with the history, manufacturing, properties, identification, stripping, testing and application of dyes. The book is written in a very simple, lucid manner.
Author: Dr. H. Panda Publisher: NIIR PROJECT CONSULTANCY SERVICES ISBN: 9381039208 Category : Dyes and dyeing Languages : en Pages : 484
Book Description
In the past, only organic matter was available for making dyes. Today, there are numerous options and methods for the colorization of textiles. While todays methods capitalize on efficiency, there is question as to whether the use of chemicals is harmful to the environment. A reputation for harming the earth could be detrimental to a company in a society becoming more and more focused on the environment and its preservation. Today, with the invention of synthetic materials used in textiles, many new types of dyes have been developed and put into regular use. There are two basic ways to color textiles: dyes and pigments. Pigments are not a dye but rather resins mechanically bound to fibers. Dyes are divided into classes according to the types of fibers they are most compatible with. Textile printing is related to dyeing but, whereas in dyeing proper the whole fabric is uniformly covered with one color, in printing one or more colors are applied to it in certain parts only, and in sharply defined patterns.Dyes will yield the softest hand (the "hand" is the feel of the fabric) and maintain the fabric's luster but the process is expensive. Pigments are much more economical to use. Pigments are generally more lightfast, more colorfast, and give greater color control. Pigment technology has developed tremendously in the past 15 years. 85% of the textile printing in the World is pigment printing.This book contains manufacturing process and other related details about Azine dyes, Azoic dyes, Azo dyes, Thiazole dyes, Triphenylmethane dyes, scientific classification of Vat dyes, fluorination of dyes, different types of pigments, applications, usages of dyes and pigments, quality control and evaluation of pigments and many more. This book will serve as a guide to Textile Technologists, Scientists and existing as well as upcoming industries.
Author: Hyung-Min Choi Publisher: ISBN: Category : Chromatographic analysis Languages : en Pages : 200
Book Description
The object of this research was to find possible ways to identify and separate vat dyes by a thin-layer chromatography (TLC) technique. The main point of this study was to search for suitable TLC systems (i.e. eluents, adsorbent). Six reducing agents were examined for use in reducing eluents and over 60 such reducing eluents in a nitrogen atmosphere were treated for their effectiveness separating vat dyes by TLC. The temperature of the systems was generally 50°c to 60°c. Silica gel and reversed phase plates were investigated for suitability with such systems. Over 100 systems were examined for the analysis of vat dyes at 100°c or 120°c under non-reducing condition. Nine eluents giving the best migration and resolution were selected. The variation of Rf values with the temperature of the system, chemical structure of vat dyes, plates, dye dispersion, and contamination of adsorbent as well as with the eluents were studied. The results showed that vat dyes could satisfactorily be separated by using mixtures of high boiling-point solvents as eluents.
Author: D. A. Derrett-Smith
Author: D. A. Derrett-Smith
Author: Linen Industry Research Association
Author: D.A. Derrett-Smith
Author: Dianne N. Epp
Author: J N Chakraborty
Author: J. William Weaver
Author: N. N. Mahapatra
Author: Dr. H. Panda
Author: Hyung-Min Choi
Author: Ellis Clayton