Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process

Definitions

• the present invention relates to the finishing of textile fabrics or web-like textile articles of fibrous structure with substantive finishing agents, in that such finishing agents are continuously applied to the goods by direct transfer from an aqueous liquor containing these substances without immersing the textile goods therein following precautions for permanent fixation of the equipment on the fiber material.
• finishing agents to web-shaped textiles is usually carried out by means of a foulard when the fiber material is immersed during the passage thereof through a liquor containing the finishing agent dissolved or dispersed and includes subsequent squeezing of the excess liquor carried away from the goods.
• the liquor intake by the material to be treated can be varied within wide limits within the scope of such an application measure. However, it is often not possible to do so due to the nature of the fiber material, i.e. its composition and structure, as well as the lower limit of the fleet intake given by the mechanical conditions of fleet reduction.
• a further disadvantage of this generally known application method occurs when finishing agents which inherently have an affinity for the textile substrate to be treated and which therefore show substantivity are to be applied to the web.
• the more or less short diving time in the fleet is generally sufficient to remove some of the contained water Equipment, such as a dye, to be applied to the material to be treated.
• the purpose of the present invention is therefore to develop a treatment method for the application of padding liquors to running webs of goods, which permits a precisely dimensioned application of substantive finishing agents, in which the effect of substantivity on the colored substrate is eliminated on account of the special measures for the procedure.
• a project of this kind has the prerequisite that the impregnation process can be carried out in a much more precisely metered manner than is done in accordance with the conventional methods on the padder.
• the fleet absorbs quantities of the textile goods in the range between 15% and 50% (based on the weight of the dry goods).
• the treatment liquor can only be applied on one side with a higher application or on both sides with a correspondingly smaller application quantity.
• the present invention is intended, especially direct dyes come into consideration.
• Substantivity is generally understood to mean the ability to draw up a textile fiber material from an aqueous liquor onto a substrate, in a limited sense the affinity of water-soluble dyes, in particular for cellulose fibers.
• the substantive dyes belong to different classes of compounds, preferably to the group of azo dyes. They are generally characterized by the presence of a system of conjugated double bonds in the molecule. This structural requirement for substantivity, to which a certain tendency of the dye molecules to associate also applies, also applies to other substantive finishing agents such as cationic plasticizers.
• substantive dyes are assigned to different type designations and can be determined there under the terms "Direct Dyes", “Reactive Dyes” or "Solubilized Vat Dyes”.
• the substantive finishing agents in particular dyes, are applied in an aqueous liquor.
• the treatment liquors to be applied can, in addition to the substantive treatment agent, any auxiliary agents, chemicals or e.g. Contain thickeners that facilitate the minimum application using the devices mentioned.
• Such impregnation liquors containing the finishing agent can also advantageously be used in the form of a fine-pored foam. Due to the inherent consistency of such foams, a certain amount of the thickener can be saved in this variant.
• Another advantage of the method according to the invention is that generally only small amounts of liquid are applied and consequently they do not have to be dried off later if the further finishing process requires this.
• the amount of aids is also reduced due to the lower order volume, which leads to reduced wastewater pollution when subsequently washed out.
• the claimed process is primarily used for textile goods made of cellulose fibers or their blends with synthetic fibers.
• a liquor of cold water which is a solution of is impregnated 300 m of a cotton fabric by direct transfer without dipping it using a device for minimal application described in European Patent EP-B-0 047 484; the liquor absorption is 30%, so that 18 g / kg of the dye are applied to the dry goods.
• the damp textile material is now steamed for 2 minutes at 105 ° C and the dyeing thus produced is then rinsed clear with cold water.
• an aqueous liquor of 20 ° C. is prepared separately has, and a second fleet of the same temperature, which in addition to water contains as further components. Both fleets I and II are mixed immediately before application in a volume ratio of 1: 4 and then applied to the goods by means of a minimal application device as in Example 1 by direct transfer without immersion with 45% liquor absorption.
• the fabric treated in this way is now rolled up with the same edges, wrapped in a plastic film and in this state is held for 8 hours at room temperature for dye fixation.
• the dyed textile is then washed out with water and soaped at the boil with an aqueous bath with the addition of 0.5 g / 1 oleylmethyl taurine under neutral conditions. After further rinsing and drying you get a brilliant scarlet color with the same finish.
• a second aqueous liquor from room temperature containing 20 cm 3/1 sulfuric acid (96%) applied at an additional wet pickup of 25% on the textile and dye developed on the basis of this measure in the same way.
• a leached, dyed and sanded cotton knitted fabric for gloves should be softened in order to achieve the necessary elasticity.
• Example 2 had been added by direct transfer without dipping the same by means of a minimal metering device as in Example 1 with a liquor absorption of 30% and the goods were dried on a palmer.
• the plasticizer used is highly substantive and it is very difficult to apply evenly on the conventional foulard by padding. In such a case, this results in sections on the goods with different elasticity.
• the goods softened according to the present example according to the present invention on the other hand, all have a uniform elasticity.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Coloring (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6268540

Family Applications (1)

Country Status (2)

Family Cites Families (5)

• 1985
  • 1985-04-19 DE DE19853514110 patent/DE3514110A1/de not_active Withdrawn
• 1986
  • 1986-04-09 EP EP86104880A patent/EP0198416A3/fr not_active Withdrawn

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