BEMACRON Disperse dyes for polyester Unique ideas. Unique solutions.
Polyester > All-round application > All-round challenges > All-round solutions Polyester is one of the most widely used textile fibre today and its place in the market is unchallenged. Clothing and sportswear, uniforms and protective suits, technical textiles polyester fibres have an extremely wide scope of application. Often used in blends with natural fibres or elastane to give the fabric strength, form stability and special effects. Brilliant colours can be achieved, bringing emotions to textile articles. Just as extensive as its use are the challenges to be overcome in its processing and especially in its dyeing. Countless forms, different processes and machines as well as a wide range of requirements make huge demands upon the dyes. The all-round challenges associated with its use cannot be overcome with just a few basic dyes. Basic dyes cannot meet the high requirements. All-round challenges demand all-round solutions a range of all-round disperse dyes provides the answer.
Disperse dyes > the complex nature of polyester dyeing Different types of polyester exhibit different dyeing characteristics which must be taken into account. When dyeing in a long bath, the disperse dyes should be exhausted and fixed evenly and quickly, while during yarn dyeing they are also subjected to high shear forces. In the thermosol process at temperatures every second is important. Special BEMACRON ranges and selections allow you to make the right choice of dye for every application. BEMACRON HP Saponifiable disperse dyes with the highest washing fastness. Any dye adhering to the fibre surface is readily saponified under the slightly alkaline conditions of domestic washing and split into water-soluble and low-affinity fractional parts so that virtually no soiling of accompanying materials takes place. The minimum dyeing temperature is 130 C. BEMACRON HP-LTD New generation of BEMACRON HP dyes which achieve the best washing fastness under slightly alkaline conditions due to their soapability. In contrast to conventional BEMACRON HP dyes, the dyes of the BEMACRON HP-LTD (low temperature dyeing) range can be used for dyeing in dark shades at 120 C. They are therefore particularly suitable for fibre blends such as PES/elastane which are sensitive to temperature. All BEMACRON HP-LTD dyes have excellent dispersion stability and are therefore very suitable for dyeing yarn on cross-wound bobbins. As a result problems with oligomer formation can be avoided due to the lower dyeing temperature. BEMACRON SEL Fluorescent dyes with a very bright blue supplementary element. BEMACRON SEL-EN dyes were developed especially for the specifications of EN 471 for the manufacture of warning garments and achieve the approved shades as standard dyeings. All the dyes in the BEMACRON SEL range can achieve all the specified shades of EN 1150 for the non-professional range from pink to bright green. Hence the dyes are ideal for fashion sports and leisure clothing. BEMACRON RS Universal rapid-dyeing range for the exhaust process with high colour build-up. With their fast bath exhaustion and excellent levelling properties, the BEMACRON RS dyes permit the use of very short dyeing processes with good levelling and reproducibility performance. All BEMACRON RS dyes have an excellent dispersion stability and are therefore very suitable for dyeing cross-wound bobbins. BEMACRON thermosol selection Special selection for continuous dyeing with good sublimation fastness and good fine distribution for speck-free dyeing. In addition to the main trichromie elements BEMACRON Yellow Brown S-2RFL, BEMACRON Rubine S-2GFL, BEMACRON Blue HP-3R and BEMACRON Navy S-2GL there is a wide range of shading components. BEMACRON lightfast selection The BEMACRON lightfast selection includes dyes with very high light fastness, which can be combined with one another without destruction of the dye by catalytic fading. A very high light fastness level is achieved, even on critical polyester types, such as microfibres for example. BEMACRON S Standard dyes, sublimation-fast, with good cost-benefit ratio. BEMACRON SE Easily combinable basic dyes. BEMACRON E Small-molecule dyes with good migration power. Can be dyed in light and medium shades at boiling temperature with a dye accelerator. Very suitable for dyeing PES/WO blends due to the high reduction stability.
BEMACRON advisor > The all-round optimisation program for polyester dyeing The optimum use of the BEMACRON disperse dyes is guaranteed by the BEMACRON advisor optimisation program. Taking the kinetic properties of the individual dyes into account, the program directs you to the right dye selection, calculates the optimum temperature time relationship and generates a harmonised dyeing formula. For exhaust dyeing the fixing level/time for each dye and the basic parameters of the dyeing process are shown. An optimised dyeing curve and the necessary quantities of auxiliaries are suggested for the proposed dye formulation. For continuous dyeing, the program calculates a thermosol curve (fixing level shown relative to time) for the selected dye. Temperature control can be used to determine the optimum temperature for the dye formulation. The program suggests a optimised formulation.
BEMACRON all-round range BASIC BEMACRON S: Yellow S-6GF, Yellow S-4G, Yellow Brown S-2RFL, Orange S-G, Scarlet S-GFL, Scarlet S-BWFL, Rubine S-2GFL, Violet S-3RL, Violet S-BLF, Blue S-BGL, Blue S-BB, Turquoise S-GF, Navy S-2GL, Navy S-3L, Black S-3L, Black S-TL BEMACRON SE: Yellow SE-RDL, Yellow SE-LF, Orange SE-RDL, Red SE-4G, Pink SE-REL, Red SE-3B, Red SE-RDL, Blue SE-LF, Blue SE-RDL, Navy SE-RLX, Black SE-RLX, Black SE-RD2R BEMACRON E: Yellow E-3GL, Red E-FBL, Blue E-FBL, Black E-RD Advanced BEMACRON RS: Yellow RS, Orange RS, Red RS, Rubine RS, Blue RS, Navy RS, Black RS BEMACRON lightfast selection: Selection of highly lightfast disperse dyes from the BEMACRON range with no catalytic fading BEMACRON thermosol selection: Selection of disperse dyes from the BEMACRON range for thermosoling HIGH PERFORMANCE BEMACRON HP-LTD: Yellow HP-LTD, Orange HP-LTD, Red HP-LTD, Rubine HP-LTD, Blue HP-LTD, Dark Blue HP-LTD, Black HP-LTD BEMACRON HP: Citron HP-2G, Yellow HP-G, Yellow HP-2R, Orange HP-3B, Carmine HP-2G, Red HP-B, Red HP-BS, Red HP-2BL, Red HP-RT, Rubine HP-3B, Cyan HP-G, Blue HP-3R, Navy HP-RT, Black HP-RT BEMACRON SEL: Luminous Yellow SEL-EN, Luminous Yellow SEL-8G, Luminous Orange SEL-EN, Luminous Red SEL-G, Luminous Red SEL-4B
08/13_en DACHCOM Unique ideas. Unique solutions. BEZEMA AG Kriessernstrasse 20 CH-9462 Montlingen Tel +41 71 763 88 11 Fax +41 71 763 88 88 www.bezema.com bezema@bezema.com CHT R. BEITLICH GMBH Bismarckstraße 102 D-72072 Tübingen Tel +49 7071 154-0 Fax +49 7071 154-290 www.cht.com info@cht.com