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
  • D06M23/06—Processes in which the treating agent is dispersed in a gas, e.g. aerosols
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
  • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
  • D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
  • D06L1/14—De-sizing
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
  • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
  • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
  • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
  • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
  • D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives

Definitions

• the nature of the goods used, the degree of refinement achieved through any previous work stages and the desired work goal determine the selection of the chemicals or chemical mixtures suitable for the respective work stage as well as the working conditions for their action and / or reaction on the textile goods.
• the teaching according to the invention is based on the sustainable need of practice, substantial savings in working hours, the number of absolutely necessary work stages and, if appropriate, also the Allowing a plurality of previously separate work stages to be combined into one work step.
• the teaching of the invention described below builds on this knowledge of modern process management in the continuous process.
• the invention aims to make the applicability of these technical possibilities widely accessible and in an improved form.
• the invention also intends to open up the possibility of combining a plurality of previously separate process steps into one treatment stage. But even without this further concept, it should be possible according to the invention to rationalize the respective treatment stages in the continuous process and, in particular, to drive them in a shorter time.
• the proposed solution according to the invention provides for the combination of a specifically selected method for applying the treatment liquor to or into the textile goods and the targeted influencing of the behavior of the treatment liquor on and in the textile goods during and after their application under the working conditions.
• the teaching of the invention aims to ensure that individual, separate process stages are carried out in the shortest possible manner Periods can be carried out reliably and / or that a plurality of successive process stages can be combined to form a multifunctional and in particular time-shortened work step.
• the invention relates in a first embodiment to a process for spraying aqueous active substance liquors onto textile materials, in particular as part of the continuous treatment of web-like textile goods, the process being characterized in that aqueous active substance liquors are used which are foam-free or foam-free under the conditions of the spray application contain at least low-foaming vent components, homogeneously emulsified and / or homogeneously dispersed in such an increased concentration that the penetrating wetting of the textile material takes place practically immediately.
• the teaching of the invention provides in particular to apply the spray of the aqueous active substance liquors as a hot application, the spray application as an aerosol / superheated steam system and thus the simultaneous introduction of kinetic and thermal energy into the textile web being preferred.
• concentrations of the deaerator components in the active substance liquor are preferably selected such that the complete wetting of the textile material, including the displacement of even microdisperse residual air components from the textile inner structure, is effected within a period of at most a few minutes under the working conditions.
• the preferred period for this full vent is below
• Inclusion of the displacement of microdisperse residual air amounts is at most about 5 minutes and is preferably not above about 1 minute.
• the desired work result of the complete textile ventilation is practically immediately achieved and practically achieved together with the fleet order.
• the invention relates to the use of such a method for shortening the treatment duration of individual, but also, if appropriate, for combining several work stages in the continuous treatment of raw textile goods and / or in textile finishing.
• the teaching according to the invention provides for the summary of essential work stages from the pretreatment technology of cellulose-containing textile materials, in particular based on cotton, optionally in a mixture with fibers or fiber materials of other natural and / or synthetic origin.
• the invention relates in particular to a process for the simultaneous desizing, boiling off and bleaching of cellulose-containing textile materials, and the agents to be used for this.
• the teaching according to the invention is based on the knowledge that by appropriate selection and use of so-called deaerator components in the aqueous treatment liquors, errors and / or irregularities in the desired work result can also be reliably avoided, especially under the working conditions of the spray application of the treatment fleet and the time-shortened treatment in the continuous process can be.
• deaerating means addresses a comparatively small class of substances for the person skilled in the field of textile production and processing, which in the sense of the teaching according to the invention is additionally characterized by the ability to rapidly wet the surface of fibrous materials in the aqueous phase without a pronounced one Tendency to foam.
• aqueous treatment liquors which are applied by spraying and in particular via the working method of the aerosol / superheated steam spray application are applied to the textile goods.
• These liquors generally contain additives for the desired chemical reaction on the fiber surface, which in turn are more or less capable of foam formation in aqueous liquors and, due to the application method chosen here, also generate substantial foam formation by means of considerable kinetic energy via the aerosol spray state can lead on and in the textile web.
• deaerators are used which, under the conditions of the spray application and in particular when applying aerosol hot steam to the textile web, not only do not themselves cause foaming themselves, but are also capable, if appropriate, of the use of others Active ingredient components - for example corresponding surfactant components - to destroy the resulting foam immediately and / or to prevent foam formation. It is only when these additional conditions are taken into account that the really broad applicability of the simplified and accelerated textile treatment process in the sense of the publications ES-A1-545 681 and EP-A1-0 352 591 cited at the beginning is reliably possible.
• deaerator substance class is particularly preferred, namely the class of the trialkyl tri-alkyl esters as described in the literature, cf. in addition to the already cited reference TEXTIL-VEREDELUNG the publication K. Reincke “Foam-free wetting in dyeing machines and equipment” Textilpraxis 1973, 461. This describes the use of phosphoric acid trialkyl esters mixed with emulsifiers.
• the invention provides for the use of phosphoric acid triesters of lower alkyl alcohols, which can be at least partially alkoxylated as deaerators. It may be preferred that at least 50 mol% and in particular at least 75 mol% of the lower alkyl alcohols used for the ester formation have been used in the form of their alkoxylated representatives for the preparation of phosphoric acid triesters. Corresponding phosphoric triesters in which alkoxylated lower alkyl alcohols have been used almost exclusively as ester-forming reactive components are particularly suitable.
• the phosphoric acid triesters which are particularly suitable according to the invention are derived from alkoxylated straight-chain, branched and / or cyclic C1 ⁇ 6 alkyl alcohols, which preferably have an average degree of alkoxylation between about 1 and 5. Lower degrees of alkoxylation within this range, ie values of about 1 to 2, may be particularly suitable.
• Suitable alkoxy radicals are, in particular, the corresponding radicals of ethylene oxide and / or propylene oxide, trialkoxyethylphosphates being a particularly preferred class of substances for the purposes of the action according to the invention. An important representative from this class is tributoxyethyl phosphate.
• deaerators of the type defined last have the multifarious combination of desired and absolutely necessary effects which make advantageous work possible in the sense of the invention: phosphoric acid triesters of alkoxylated lower alkyl alcohols can also be stably emulsified, even in strongly electrolyte-containing aqueous liquors, as a rule sufficiently self-emulsifiable. Despite this rather tenside-like change in the molecular structure, they have the required combination of material properties, especially freedom from foam and the ability to remove static residual air thoroughly and practically immediately from the textile goods treated with appropriate aqueous liquors.
• deaerators This ability is maintained under the difficult application conditions in the sense of the action according to the invention - the spray application with the input of high kinetic energy, in particular according to the aerosol / superheated steam process.
• the effect of these deaerators is not limited to the expulsion of the statically bound, microdisperse residual air components, deaerators of the type affected here also act actively against foam formation and in the sprayed textile web even when foam-forming mixture components - for example as detergent surfactant components - have to be used as well .
• deaerator amounts - especially deaerators of the type described phosphoric acid esters - can be used in the aqueous treatment liquors in amounts of up to about 1 to 2% by weight, preferably up to about 1% by weight, but at least in amounts from about 0.01 to 0.02% by weight.
• the range from about 0.02 to 0.5% by weight of the deaerators, based on the aqueous liquor, can be of particular importance.
• the general rule is that, in individual cases, inadequate results with regard to ventilation and / or foam inhibition can initially be improved by increasing the content of phosphoric acid triesters in the sense of the objective of the invention.
• the web material in particular in the form of a web, can be used as dry goods or as wet goods. It is preferred to limit the water content of wet feed material to values of at most about 100% by weight and in particular to values of not more than about 80% by weight -% by weight in each case based on dry textile weight. In a further preferred embodiment of the teaching according to the invention, it may be expedient to heat the wet or the dry textile material before the spray application of the liquors modified according to the invention. This heating can take place in any known form.
• the amount of the total liquid phase entered is determined according to the respective process requirements. In general, there is an upper limit so that the liquor carrying capacity of the textile material is not exceeded or is not significantly exceeded.
• the numerical determination of this fleet carrying capacity is determined by the particular nature of the textile material and is, for example, in the range from about 100 to 300% by weight, based on the dry weight of the textile. In important cases - for example in the pretreatment of textile webs containing cotton or cotton, the liquor carrying capacity is often in the range of around 150% by weight.
• the spraying of the liquors is carried out on one side or preferably on both sides of the web-shaped goods, and repeated spraying can also be provided on one or on both sides of the textile goods.
• the application of sufficient kinetic energy in the spray application can be important. This not only promotes the penetration of the textile web with the liquid phase, under the influence of the deaerator added according to the invention, the pushing force of the liquid phase in the textile web can have the important function of displacing the microdisperse residual air.
• an optimized combination of thermal and kinetic energy is introduced into the textile web to be treated in that the spray application already mentioned several times is carried out by means of an aerosol / superheated steam process.
• the application of liquor under increased spray pressures by means of multi-flow mixing nozzles with an external mixture of sprayed aqueous liquor and pretensioned superheated steam which is shown for example in EP-A1-0 352 591 using suitable spray nozzle types, has proven its worth.
• both the spray jet of the aqueous liquor and the water vapor jet are expelled from separate openings of the spray device under elevated pressures - for example 2 to 4 bar overpressure and before the Impinging mixed on the textile web to be treated.
• the hot liquor that finally hits the textile material in this mixed state is immediately activated due to the thermal energy supplied and can thus optimally fulfill the task assigned to it on the fiber surface, the use of the venting component (s) in the sense of the invention having the uniform effect of Textile fleet across the entire range of textile goods also ensures in its microstructure.
• aqueous treatment liquors used The nature of the aqueous treatment liquors used is determined by the intended processing purpose. In the simplest embodiment, reliable venting of the textile goods to a wet, saturated product can be aimed for, which is then transferred to a subsequent work stage in this state. In practice, an aqueous solution, emulsion and / or dispersion of the deaerator component can be used without the addition of other active ingredients.
• the invention provides for the joint use of the deaerator components described with further additives for the intended textile treatment in the liquor, which in turn can be present in the aqueous liquor as a solution, emulsified and / or dispersed.
• treatment liquors are used which, together with the deaerators, contain active substance mixtures for the simultaneous operation of a plurality of textile finishing stages. Details are given below.
• the web-like textile material is applied in a continuous process to the liquor containing deaerators and active ingredients or active ingredient mixtures, preferably by means of aerosol / superheated steam, and can subsequently be used in at least one further hot and / or cold stage are treated.
• the process technology of the so-called pretreatment of textile goods based on cotton mixtures containing cotton or cotton as a partial component generally consists of 3 process steps, desizing, the alkali stage and the peroxide bleaching stage.
• current practice provides for at least 2 process steps, the desizing and the peroxide bleaching stage.
• each of the pretreatment stages desizing, alkali treatment and peroxide bleaching consists of the sub-processes application, reaction and washing.
• the reaction times under saturated steam conditions alone are between 3 and 15 minutes at the alkali stage and between 7 and 15 minutes at the peroxide bleaching stage.
• the invention not only wants to substantially shorten the duration of the process steps, it actually wants and achieves the combination of these steps in one treatment step.
• the required goals for such pretreatment must also be able to be set reliably in the new process. It must therefore be guaranteed: A high degree of whiteness depending on the subsequent processes, sufficient shell freedom, high rewettability, sufficient Degree of desizing and an optimal removal of the accompanying substances of the native cellulose.
• the process according to the invention makes it possible to combine these 3 stages of desizing, boiling and bleaching in one process stage by working with selected aqueous liquors which contain the active ingredients required in a mixture with one another.
• the implementation of this concept is imperative to the core of the teaching according to the invention at the same time in the fleet to now also use the breather, which in the stated manner leads to the practically immediate expulsion of static air components including the microdisperse residual air and, on the other hand, increases the foam formation when applying the liquor Prevent spraying on.
• the textile webs treated in the sense of the teaching according to the invention have now actually reached this state of complete freedom from static residual air and in particular also from the microdisperse residual air by definition.
• the wet material from the treatment stage according to the invention is accordingly particularly suitable for use in a downstream washing stage which is accelerated by the action of ultrasound. This enables further substantial savings in time and effort.
• the pure desizing of a textile raw material without subsequent or simultaneous bleaching using thermostable enzymes and / or by oxidative means The combination of an oxidative desizing plus boiling with the use of bases; The combination of desizing, boiling and bleaching; Leaching at comparatively higher alkali concentrations; The combination of oxidative desizing and leaching; A combination of desizing, boiling and leaching and, if necessary, simultaneous bleaching; Peeling polyester fibers to reduce fiber titer; Mercerization (exposure to alkali under tension); Classic steps in the field of dyeing; All work steps from the field of "pad steam treatment", for example padding (immersion / squeezing) and steam "padding".
• the invention relates to means and a method for the simultaneous desizing, boiling and bleaching of cellulose-containing textile materials.
• Cotton contains natural impurities, for example pectins, waxes, fats, proteins, seed husks and mineral components, as well as impurities that are applied as foreign substances during the manufacture of the textile material, for example preparations, rinsing oils and sizing agents. These contaminants must be completely removed from the textile material in order to avoid later malfunctions during the finishing. This is done by pretreatment, i.e. by desizing, boiling and then bleaching the cellulose-containing textile materials.
• pretreatment i.e. by desizing, boiling and then bleaching the cellulose-containing textile materials.
• the pretreatment of cellulose-containing textile materials is carried out continuously in several successive process steps, in which the textile material is passed through the respective treatment liquor, then after squeezing off excess liquor, the treatment agent is allowed to act on the textile material in a saturated steam atmosphere at 100 ° C. for 7 to 15 minutes and then the dispersed impurities and the treatment agent are removed from the textile material by washing.
• the subsequent, next process stage is carried out in the same way.
• This multi-stage process which consists of up to 4 process steps, namely desizing, boiling, bleaching and leaching, is very time-consuming.
• only very specific impurities can be removed from textile materials with each of the known treatment agents, so that a treatment agent with a different chemical composition is required for each process step.
• the object on which the invention is based was therefore on the one hand to provide means with which cellulose-containing textile materials can be desized, boiled and bleached at the same time, and on the other hand to develop a process with which it is possible to add cellulose-containing textile materials at the same time within a short time desize, boil and bleach.
• cellulose-containing textile materials can be desized, boiled and bleached at the same time using agents which contain mixtures of selected anionic and nonionic surfactants in certain amounts. If these agents are applied together with peroxide compounds to cellulose-containing textile materials as aerosol under pressure and then the textile materials are subjected to saturated steam conditions in a steamer, the simultaneous desizing, boiling and bleaching of cellulose-containing textile materials is completed in a maximum of 4 minutes.
• the subject matter of the invention in this embodiment is an agent in the form of an aqueous solution or dispersion, containing, based on the water-containing agent, 5 to 20% by weight Anionic surfactants, especially alkali, alkaline earth and / or ammonium salts of C12 ⁇ 18 alkane sulfonates and / or C6 ⁇ 18 alkyl sulfates 2 to 10% by weight Nonionic surfactants, especially alkoxylated aliphatic C8 ⁇ 22 alcohols 5 to 20% by weight ventilator 1 to 10% by weight Complexing agents and 0.1 to 1% by weight Magnesium salts, for desizing, boiling and bleaching cellulosic textile materials at the same time.
• Anionic surfactants especially alkali, alkaline earth and / or ammonium salts of C12 ⁇ 18 alkane sulfonates and / or C6 ⁇ 18 alkyl sulfates 2 to 10% by weight
• Nonionic surfactants especially alkoxylated ali
• Such a water-containing agent according to the invention preferably contains 5 to 12% by weight Anionic surfactants 2 to 8% by weight Nonionic surfactants 6 to 12% by weight ventilator 1 to 5% by weight Complexing agents and 0.2 to 0.8% by weight Magnesium salts.
• the agents according to the invention particularly preferably contain C8 ⁇ 18 alkyl sulfates as anionic surfactants in the form of their alkali and / or ammonium salts.
• Alkyl sulfate salts are prepared in a manner known per se by sulfating the corresponding alkyl alcohols, for example with chlorosulfonic acid or sulfur trioxide.
• the resulting sulfuric acid half-esters of the alcohols are then neutralized with, for example, alkali metal hydroxide solution, such as sodium hydroxide solution, aqueous solutions of alkaline earth metal hydroxides or ammonia (Winnacker / Küchler in "Chemische Technologie", Volume 7, pages 120 to 123, Carl-Hanser-Verlag, Kunststoff / Vienna 1986).
• alkali metal hydroxide solution such as sodium hydroxide solution
• Examples are hexyl, octyl, 2-ethylhexyl, decyl and / or dodecyl alcohol as well as coconut and / or tallow fatty alcohol.
• the agents according to the invention contain alkoxylated, in particular ethoxylated and / or propoxylated, alkyl and / or alkenyl alcohols of natural and / or synthetic origin with 8 to 22 carbon atoms, preferably with 10 to 18 carbon atoms, as nonionic surfactants.
• the linear, branched-chain or cyclic alkyl and / or alkenyl alcohols are alkoxylated by known industrial processes with alkylene oxides, preferably with ethylene oxide and / or propylene oxide (Winnacker / kuchler: "Chemical technology", volume 7, pages 131 to 132, Carl-Hanser Publishing house, Kunststoff / Vienna 1986).
• the average degree of alkoxylation of the alkoxylated alcohols obtained is preferably between 1 and 20, preferably between 5 and 10.
• suitable alkyl and / or alkenyl alcohols are octyl, decyl, lauryl, myristyl , Cetyl, stearyl, oleyl, behenyl alcohol and mixtures of these alcohols.
• phosphoric acid esters in particular in the form of their phosphoric acid triesters, which are e.g. are accessible by phosphating alkoxylated C1 ⁇ 6-alkyl alcohols with phosphorus oxychloride.
• C1 ⁇ 6 alkyl alcohols can be linear, branched or cyclic.
• the degree of alkoxylation is between 1 and 5.
• Tributoxyethyl phosphate for example, is suitable as the phosphoric acid triester.
• the agents according to the invention preferably contain nitrogen-containing and / or nitrogen-free mono, di- and / or polyphosphonic acids and / or their alkali and / or ammonium salts and / or OH-group-containing mono-, di- and / or polycarboxylic acids and / or their alkali as complexing agents - and / or ammonium salts, for example 1-hydroxyethane diphosphonic acid (HEDP), aminotri (methylenephosphonic acid) (ATMP), ethylenediaminetetra (methylenephosphonic acid), diethylenetriaminepenta (methylenephosphonic acid) and their alkali and / or ammonium salts, gluconic acid, sodium gluconate, tartaric acid and / or also acrylic acid homo- and / or copolymers, nitrilotriacetic acid (NTA) and / or polyphosphates.
• Magnesium sulfate and / or magnesium chloride are used as magnesium salts in the agents according to the invention.
• compositions according to the invention are produced at temperatures between 15 and 25 ° C. in which anionic surfactants, nonionic surfactants, complexing agents and deaerators are successively added to water which contains magnesium salts.
• anionic surfactants, nonionic surfactants, complexing agents and deaerators are successively added to water which contains magnesium salts.
• the aqueous solutions or dispersions of the agents according to the invention obtained have a high dispersibility, a high alkali and peroxide stability and a low tendency to foam.
• Another object of the invention is a process for the simultaneous desizing, boiling and bleaching of cellulose-containing textile materials by application of an aqueous solution per liter 5 to 30 ml an agent in the form of an aqueous solution or dispersion containing, based on the water-containing agent, 5 to 20% by weight of alkali, alkaline earth and / or ammonium salts of C12 ⁇ 1 ⁇ alkanesulfonates and / or C6 # SB- # 18- Alkyl sulfates, 2 to 10 wt .-% alkoxylated aliphatic C8 ⁇ 22 alcohols, 5 to 20 wt .-% deaerator, 1 to 10 wt .-% complexing agent and 0.1 to 1 wt .-% magnesium salts 10 to 100 g Sodium hydroxide 10 to 40 ml 100% hydrogen peroxide and 10 to 50 ml a stabilizer contains, in amounts of 100 to 300 wt .-%, based on the weight of the
• the aqueous solutions for the process according to the invention are prepared by mixing an aqueous alkaline solution which contains hydrogen peroxide and, for example, sodium silicate, 35% by weight as a stabilizer, with the agent according to the invention.
• the solutions obtained are applied in amounts of 100 to 300% by weight, based on the weight of the textile material.
• the aerosol / superheated steam application is preferably used.
• the process is then continued in a manner known per se by allowing the treatment agent to act on the textile fiber material in a saturated steam atmosphere at 100 ° C. for 0.5 to 4 minutes, preferably 0.5 to 3 minutes.
• the textile material is then washed at 60 to 98 ° C.
• the agents according to the invention are also suitable for the leaching of cellulose-containing textile materials, provided they do not contain magnesium salts.
• cellulose-containing textile materials are cotton, linen, nettle, jute, blends of cotton and polyester and blends of cotton and polyamide.
• the textile materials can be available as fabrics, knitted fabrics and nonwovens.
• the cellulose-containing textile materials treated by the process according to the invention are distinguished by a high degree of whiteness, have a low average degree of polymerization and high rewettability and are shell-free.
• aqueous active substance liquor as part of the liquor application to the textile web
• the special technology of the metering and application system can be adapted will. If the multicomponent mixture to be applied as an aqueous liquor shows sufficient stability even in a mixture of the components used in only one treatment liquor at the active ingredient concentrations to be selected in the respective process, the mixture of these active ingredient components can be mixed to form a liquor batch and in this form nozzles of the superheated steam leading into the liquid phase Spray application system are fed.
• the treatment liquor is made available, for example, with the aid of a single component metering in the process according to the invention.
• the partial liquor streams may be expedient for the partial liquor streams to be combined with one another immediately before they occur to mix with each other in the spray nozzle, so that the state of mixing exists only for a very short time before the liquor hits the textile material.
• the two extreme cases of dosing multicomponent active ingredient mixtures described here can also be combined with one another, so that, for example, partial liquor streams are provided which at least partially contain partial mixtures of the total value or active ingredients to be applied. Considerations regarding the appropriate choice of application technology are also determined, among other things, by the degree of preservation of individual or more valuable substances in an aqueous liquor, in particular when mixed with the other active ingredient components.
• Another factor that has to be considered in this connection can be the choice of the specific properties of the textile material to be treated. If the textile material is fed into the process step of the invention as a dry material web, comparatively lower active substance concentrations can be used in the treatment liquor than when the wet-on-wet application is worked accordingly. In the latter case, for example, the degree of maintenance of increased concentrations of active ingredient components at risk of decomposition - for example hydrogen peroxide - can be jeopardized to the extent that the use of single component dosing offers itself as a way out.
• aqueous solution which contained 20 ml of sodium water glass, 35% by weight, 30g NaOH, 100%, 20 ml of a mixture according to the invention from preparation example 1 and 80 ml of 36% by weight hydrogen peroxide per liter was in the form of a Aerosols applied under pressure to starch-finished cotton raw fabrics.
• the liquor absorption was 130% by weight.
• the raw cotton fabric was then subjected to a saturated steam atmosphere (100 ° C.) in a steamer for 2 minutes. After washing out and drying in a manner known per se, a shell-free, undamaged cotton fabric was obtained.
• Cotton raw fabric sized with starch was treated in three successive process stages in which the cotton raw fabric was passed through the respective treatment liquor. After squeezing off excess liquor, the raw cotton fabric was subjected to a saturated steam atmosphere at 100 ° C. and then the treatment agent was removed from the fabric by washing.
• Each treatment liquor contained as a wetting agent a mixture of 25 wt .-% C13 alkanesulfonate, sodium salt, 18 wt .-% Calk14 alkyl alcohol 4.5 mol propylene oxide ⁇ 5.5 mol ethylene oxide and 57 wt .-% water.
• aqueous solution containing 20 ml of sodium water glass, 35% by weight, 30 g NaOH, 100%, 20 ml of an agent according to the invention prepared according to Preparation Example 2 and 80 ml of 35% by weight hydrogen peroxide was added to a Applied raw material made of polyester / cotton 65% / 35% as an aerosol under pressure with starch and polyvinyl alcohol.
• the liquor intake was 130% by weight.
• the textile material was subjected to a saturated steam atmosphere at 100 ° C. in a steamer for 1 minute. After washing and drying in a manner known per se, a polyester / cotton fabric was obtained on which there was no longer any polyvinyl alcohol, although no separate desizing was carried out.
• Raw fabric made from polyester / cotton 65% / 35% sized with starch and polyvinyl alcohol was passed through a desizing liquor and a bleaching liquor in two successive process stages. After squeezing the respective liquor, the fabric was subjected to a saturated steam atmosphere at 100 ° C. and then the treatment agent was removed from the fabric by washing.
• both treatment liquors contained a mixture of 25% by weight of C13 alkanesulfonate, sodium salt, 18% by weight of C8 ⁇ 18 ⁇ alkyl alcohol ⁇ 4.5 moles of propylene oxide ⁇ 5.5 moles of ethylene oxide and 57% by weight of water.

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• Engineering & Computer Science (AREA)
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• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

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• 1992
  • 1992-01-31 DE DE4202720A patent/DE4202720A1/de not_active Withdrawn
  • 1992-04-23 WO PCT/EP1992/000904 patent/WO1992019806A1/fr not_active Application Discontinuation
  • 1992-04-23 EP EP92909446A patent/EP0582619A1/fr not_active Withdrawn
  • 1992-04-23 KR KR1019930703187A patent/KR100220269B1/ko not_active IP Right Cessation
  • 1992-04-23 US US08/140,118 patent/US5484453A/en not_active Expired - Fee Related
  • 1992-04-23 BR BR9205952A patent/BR9205952A/pt not_active Application Discontinuation
  • 1992-04-23 JP JP4508500A patent/JPH06507213A/ja active Pending
  • 1992-04-23 EP EP92106924A patent/EP0513571A1/fr active Pending
  • 1992-04-30 TR TR92/0411A patent/TR25842A/xx unknown

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