Levelness in Yarn Dyeing: Advances in Theory and Practice

Hoffmann, Fredgar
October 1990
Textile Chemist & Colorist;Oct90, Vol. 22 Issue 10, p11
Academic Journal
Levelness in package dyeing can be described quantitatively and an unlevelness parameter defined using simple model systems. Factors which determine levelness in industrial dyeing procedures are discussed including the role of the fiber surface in dyeing acrylic fibers, the leveling ability of disperse dyes for polyester and the importance of liquor flow and its uniformity when dyeing cellulosic fibers. If these factors are considered as well as control of exhaustion or fixation, levelness can be improved or dyeing time reduced. Further optimization with the use of simple computer programs allows for improved dyeing results.


Related Articles

  • Dyeing with Disperse Dyes. Schuler, Mathias J. // Textile Chemist & Colorist;Aug80, Vol. 12 Issue 8, p33 

    Disperse dyes can be used on polyester and nylon over a full shade range. On acrylic fibers they are used primarily for pastel shades. The dyeing of polyester by a high temperature aqueous exhaust method is described as a generalized example of dyeing with disperse dyes.

  • Coloration of Polyester and Acrylic Fabrics with Carbon Black Nanoparticles. Dapeng Li; Gang Sun // AATCC Review;Dec2003, Vol. 3 Issue 12, p19 

    An alternative to pigment dyeing of fabrics involves the use of nanoparticles. A preliminary dyeing study using nanoparticles was performed on polyester and acrylic fabrics. Critical factors involved in this process include diffusion, particle size and concentration, treatment temperature, type...

  • NEW DYEING TECHNOLOGY IN THE COLORATION OF POLYETHYLENE TEREPHTHALATE POLYESTER FIBER. Hussamy, Samir // Book of Papers, National Technical Conference of AATCC;1997, p345 

    The article discusses the results of a study that examined the surface modification of polyethylene terephthalate (PET) polyester fiber during the dyeing process to produce new styles of polyester fabrics. It outlines what has been done and introduce a dyeing process for PET polyester fabrics...

  • Cotton/polyester Solo-Sirofil composite yarn. Rui-Hua Yang; Wei-Mian Wu; Yu-Qin Wan; Hong-Bo Wang; Chun-Ping Xie; Wei-Dong Gao // Industria Textila;2011, Issue 5, p240 

    The effect of introducing a Solospun roller in the Sirofil spinning system in order to improve the properties of cotton/polyester composite yarns, especially the yarn hairiness was studied. For this purpose, as part of the experiment, 9 different cotton/polyester composite yarns, with yarn count...

  • How Dyeing Can Affect The Quality of Bonded Fabrics. Fritz Jr., Harry W. // Textile Chemist & Colorist;2/11/1970, Vol. 2 Issue 3, p29 

    Since dyeing defects on materials that are to be bonded cannot be corrected after bonding has taken place, it is most important that goods for bonding be thoroughly inspected before shipment. Conditions which may cause difficulties and suggestions for correcting them are covered in this paper.

  • DYEING QIANA NYLON. White Jr., Marshall; Houser, N. E. // Book of Papers, National Technical Conference of AATCC;1974, p321 

    The article discusses research concerning the dyeing of fabrics made up of the Type 472 Qiana nylon yarn. Described to have high quality and performance, Qiana yarns have passed the product standards set by the DuPont Company. Information on preparing fabrics constructed from the said nylon is...

  • COMPUTER-AIDED OPTIMIZATION OF EXHAUST DYEING PROCEDURES. Hoffmann, Fredgar // Book of Papers, National Technical Conference of AATCC;1997, p288 

    The article describes how computer-aided optimization can be used to increase the profitability of exhaust dyeing operations. It describes DyStar Textilgarben GmbH & Co.'s Compudye System for computer-aided dyeing, with emphasis on its objective to replace the various non-optimized standard...

  • Transfer Printing: The Fibers and the Dyes. Serex, Charles // Textile Chemist & Colorist;May79, Vol. 11 Issue 5, p36 

    The article focuses on the several areas of transfer printing that involve fibers and dyes. It cites that transfer printing supplies high energy to the dye to diffuse into the polyester fiber after adsorption at the fiber surface. According to the article, cationic dyes are used more for the...

  • Transfer Printing On Cationic Dyeable Fabrics.  // Textile Chemist & Colorist;Nov74, Vol. 6 Issue 11, p38 

    Although the vapor-phase transfer printing of polyester fabrics has been growing at an accelerating rate, this process has limited value for transfer printing acrylic fabrics. Disperse dyes used for polyester do not give deep, bright shades on acrylic fabrics; and the cationic dyes widely used...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics