purification, filtration, distillation for adding or mixing constituents of the treating material, DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM, General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed, General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using vat dyestuffs including indigo, Gap GüneydoÄu TekstiÌl SanayiÌ Ve TiÌcaret AnoniÌm ÅiÌrketiÌ. Suitable substrates for dyeing are all cellulose type and/or blend yarns including, but not limited to, cotton, wool, linen, or viscous. Generally, a dyeing process involves adsorption (transfer of dyes from the aqueous solution onto the fibre surface) and diffusion (dyes diffused into the fibre). The heating should be as uniform as possible. In the dyeing of wool, which is a complex protein containing about 20 different α-amino acids, the sulfuric acid added to the dyebath forms ionic linkages with the amino groups of the protein. This new way of thinking about aromatic interactions15 allowed a ready explanation of the characteristic herringbone packing of aromatic hydrocarbons in the crystalline state21 and also explained the phenylalanine-phenylalanine geometries found in X-ray crystal structure analysis results from certain proteins.22 The maximum electrostatic attraction for two aromatic systems was subsequently calculated as 6 KJ mol–1 which represents only a weak interaction. Vosoughi23 concluded that the most important parameters affecting levelness of dyeing in a package dyeing operation could be listed as follows: flow rate (circulation rate) of dye liquor. S. Grishanov, in Handbook of Textile and Industrial Dyeing, 2011. In the present invention, all vat dyes may be used individually or in combination with other dyes in a continuous process for production of yarn or fabric with ring effect dyeing. For true dyeing (as opposed to mere staining) to have taken place, the coloration must be relatively permanent—that is, not readily removed by rinsing in water or by normal washing procedures. In another embodiment of the present invention, the treatment unit has several reaction units in parallel with each unit containing a different dye composition, wherein each dye composition has a different half-life, solubility, and other chemical properties. However, this natural worn-out or washout effect only happens with fabric produced with yarn that has ring effect dyeing (i.e., perimeter dyeing), or specifically in blue jean denim, dyed with Indigoid vat dye. Glucose has been used as a reducing agent for sulphur dyes for quite some time, but it was considered to give unsatisfactory results since it was dependent on high temperatures. In these processes, the number of dip dye tanks is at least 2, preferably from 8 to 16. Prepared 40 Be caustic solution (494 g/l of sodium hydroxide) with 47 Be caustic (668 g/l sodium hydroxide, commercially available). Modern machines, automatically controlled and programmed, can be built to work under pressure. A dyeing process is the interaction between a dye and a fibre, as well as the movement of dye into the internal part of the fibre. Vat dyes are especially fast to light and washing. In these processes, indigo-derived vat dye is added in reduced form or in mixture with reducing agents to a dye tank. Advantages include more rapid wetting of textiles, less swelling, increased speed of dyeing per given amount of material, and savings in energy, because less heat is required to heat or evaporate perchloroethylene, for example, than is needed for water. These processes may be accompanied by chemical reactions between the dye molecules and the substrate, for example, in the case of vat, reactive and chrome dyes. The dyeing and finishing processes, along with the apparel manufacturing operation, affect the dimensions of a product. Hunter15 points out that such π–π interactions are commonly used to explain interaction between two or more aromatic molecules, but current evidence shows that they are negligible compared to electrostatics.17. In a further embodiment of the present invention, a continuous dyeing process for textile material to produce ring effect dyeing comprises at least one treatment unit used at a location before the dip-dye tank.