Reactive Dyes Importer and supplier company in Bamgladesh

The demand for reactive dyes, among the dyes for cellulose fibers, is increasing yearly due to its vivid colors, excellent wet fastness properties and convenient dyeing procedures. “PT. Sinar Syno Kimia” is an ISO 9001, ISO 14001 and ISO 45001 certified dye manufacturing company in Indonesia, has developed its line of Reactive Dyes for cellulose fibers and is being sold as Sinarcion-HS, Sinarcion-R2BN, Sinarcion-LF, Sinarcion-HE, Sinarcion-BF, Sinarcion-V, Sinarcion-P and Sinarcion-C and have gained worldwide approval for its quality. Recently we have worked out to develop new range of reactive dyes and we have launched Sinarcion HSD and SDS series. Technical Research Center of The company: PT. Sinar Syno Kimia’s Technical Research Center has prepared this technical information booklet to assist the customers in using Sinarcion dyes. The properties of reactive dyes, dyeing methods and general properties have been included so that this technical information may be effectively utilized. We hope this literature may be of useful reference. We sincerely thank all our customers for using our Sinarcion Dyes. Sinarcion SK Series Dyes: Dyes with increased build-up properties. Suitable for achieving deeper shade with good fastness to fulfill global merchant’s fastness requirements. The series recommended for Continuous, Discontinuous (Exhaust) and Semi Continuous (CPB) process Sinarcion R2BN Series dyes: Multifunctional dyes with excellent compatibility, good fastness, good build-up, provide economical trichromatic for medium to dark shade dyeing in reliable application. Recommended for Continuous, Discontinuous (Exhaust) and Semi Continuous (CPB) process. The series recommended for Continuous, Discontinuous (Exhaust) and Semi Continuous (CPB) process. Sinarcion HS Series dyes: New series with modified reactive functional group have excellent build up properties; provide good reproducibility and productivity improvement in deep shade dyeing. The series recommended for Continuous, Discontinuous (Exhaust) and Semi Continuous (CPB) process. Sinarcion HSD Series Dyes: New series with modified reactive multifunctional dyes for medium to deep shades, • Excellent Build-up properties •Good reproducibility and high fixation value •Provide productivity improvement in deep shade dyeing •Low sensitivity to changing dyeing parameters •Versatile application: – Exhaustion with Isothermal dyeing application – Semi-continuous (CPB) – Continuous Good wash off & Less color in waste water. The series recommended for Continuous, Discontinuous (Exhaust), Semi Continuous (CPB) process and Printing application. Sinarcion SDS Series Dyes: Dyes with increased build-up properties. Suitable for achieving deeper shade with good fastness to fulfill global merchant’s fastness requirement. The series recommended for Continuous, Discontinuous (Exhaust), Semi Continuous (CPB) process and Printing application. 3. EXHAUST DYEING METHODS: Pretreatment of the preparation of goods for dyeing and printing is far more important than the production of white goods. In order to make the material more absorbent, all sizing agents, such as starch, starch derivatives should be removed completely. Singeing, desizing, scouring, bleaching, mercerizing are the steps which are taken for treating the material before dyeing. Mercerized material gives deep and brilliant shade than unmercerized material. Constant Temperature Method: This method is suitable for dyeing regenerated fibers or mercerized cotton yarn or fabrics, where level dyeing is difficult, in dyeing machines where the dyebath is circulated or hank dyeing machines. Use of dyes with good levelling properties is recommended. SALT AND ALKALI REQUIREMENTS (1) Inorganic Salt: Inorganic salts such as anhydrous Glauber salt, crystalline Glauber salt or common salts are used as electrolytes. Glauber’s salt may contain material such as alkali, and bay salt or rock salt may contain large amounts of impurities or metals. Care must be taken as precipitation on the fabric may occur, if metals are not removed. The amount of anhydrous Glauber salt used in the dip dyeing of cellulose fibers with Sinarcion reactive dyes depends on the dye, substrate, and concentration of dye bath, liquor ratio or temperature of dyeing. The following table shows the amounts of anhydrous Glauber salt or common salt generally used. (2) Alkali: Sodium Carbonate is generally used with reactive dyes but tertiary Sodium Phosphate, Caustic Soda and Sodium Carbonate are also used. Use of Sodium Carbonate along with Caustic Soda is recommended. When Caustic Soda is used by itself, alkalinity is high and control of pH is difficult, causing changes in color. The color yield may also decrease to result in poor reproducibility. The amount of alkali used with Sinarcion reactive dyes depend on the dye, substrate, and concentration of dye bath, liquor ratio, and temperature of dyeing. The following recipe may be used.