DE2022929A1 - Textile treatment process - Google Patents

Description

Folder 22253 - Dp.K / E.
Gases Z / MD 21901

IMPERIAL OHEMIOAL INDUSTRIES JiSJ) *
London, UK

Text treatment process

Priority: May 9, 1969 ~ Great Britain

The invention relates to a textile treatment method and, more particularly, to a method of treating textile materials in order to at least partially treat them
bleaching.

In the textile industry it is common practice to use textile materials treat with chemicals to bleach them. Known chemicals for this purpose are hydrogen peroxide, sodium chlorite and peracetic acid. These

009847/1822

are usually used in the form of aqueous solutions. Usually, the textile material, for example, remove a straight out coming from the loom fabric subjected prior to bleaching a Seinigungsbehandlüng greases and waxes and in many cases also to .Sehliehtemittel. The cleaning and desizing are often carried out as separate operations, so that a typical treatment for a fabric just emerging from the loom is carried out by cleaning it in separate operations, then desizing and finally bleaching it.

So far wurdeabei the Hauptaahl cleaning processes * Ent "arbitration processes and Bleichproaesse aqueous solutions suitable chemicals used, but in recent years are also cleaning processes ₅ in which organic solvents, particularly trichlorethylene, are used become more and more common. The main disadvantage of these aqueous treatment processes is that the individual operations are long, so that a treatment process which comprises cleaning, desizing and finally bleaching takes several hours, for example 6 hours, to achieve a completely vveiase! Finish » Sin another. The disadvantage is that the textile materials have to be washed carefully between one treatment. Even if the desizing and bleaching are combined in a single operation, a time of, for example, 4 hours or more is required. By using solvent cleaning instead of aqueous alkali cleaning, this period of time can be reduced considerably, but it is still generally of the order of magnitude of, for example, 2 ₍ hours)
09847/1 o-21

'' ■ ■: '■. - 3 -

With the conventional aqueous sleiciiprostesaeiB. is required a long time. They comprise an impregnation of the textile material with an aqueous solution of bleach. agent e, damping of the impregnated material during the desired time and washing of the H & TERIAL "©« measure a recent development is carried out, the impregnated material continuously through the pressurized steam, whereby the time required before washing is "considerably reduced. However, in this Hochdruckbieichung the textile material is purified in the preceding operations and usually desized, so that the total time vnm loom to a full .weiseen finish still amounts to a few hours.

A process has now been found by which the Bleaching "can be done very quickly, for example in about 60-120 seconds (including contractions), and which, moreover, because dewaxing, desizing and bleaching can be effected at the same time, for the treatment can be used for materials that are just coming out of the loom, seared or ■ .hermofiaciert, to make them directly suitable for many finishing operations do. Furthermore, the apparatus required to carry out the process is compact when it is used with the one compares that for the three-stage aqueous treatment processes, previously used is required.

Thus, according to the invention, a method is proposed for the treatment of textile materials, which thereby - it is carried out that an emulsion is applied to the textile material or suspension of a bleach in a hydrocarbon or halogenated hydrocarbon solvent applies, the solvent from the textile material far-.

.00 98.4 7/1822

2022923

~ 4 -

removed and then · the textile material washes » It should be noted that the subsequent washing stage, although it is essential, not directly addressing them Must follow the solvent removal stage, and that the removal of the solvent does not have to follow the step of applying the emulsion either. For example, a further® bleaching stage can be used between the stages applied to solvent removal and waxing and a further application stage, such as application an alkaline solution to adjust the pH of the emulsion can be used between the steps of applying the Emulsion and the removal of the solvent switched on will.

The emulsion or suspension usually becomes an emulsifying agent contain, and advantageously this is also at the same time a surface-active agent to the Washing the fabric following removal of the solvent to facilitate. In the case where the emulsifier is not itself a surfactant When the agent (or wetting agent) is, a surfactant is usually incorporated in addition to the emulsifying agent.

Textile materials made from natural or synthetic Fibers are generally made up of hydrocarbon and halogenated hydrocarbon solvents slightly wetted, and as a result, the application of the Treatment agent a smack and easy affair. For example, the emulsion or suspension of the bleaching agent by dipping the textile fabric or can be carried out by spraying, padding or rolling * The temperature of the emulsion or suspension during the

009847 /

_ 5 - ^; '· ■■ ■ ■

Application to the (textile material is more appropriate Room temperature so that the solvent losses are low during application.

The impregnation of the textile material with the emulsion or Suspension of the bleach is usually carried out under such conditions that an optionally present The wax content (fats, oils, waxes and other dirt) of the JP fibers on the impregnated material remains and thus does not seriously contaminate the impregnation bath. If the emulsion or suspension is created by immersing the textile ■ material is applied, then the immersion time is advantageously very short *

It is desirable to perform the procedure with a conventional Then collapse the solvent cleaning process the emulsion or suspension of the bleaching agent can be applied to the wet textile material, if this leaves the solvent cleaning tank.

After the textile material has been impregnated with the emulsion or suspension of the bleach becomes the hydrocarbon or halogenated hydrocarbon solvent eliminated. Any method of removing the solvent can be used such as air drying, in particular, hot air is used but it will preferred that the removal be done quickly, for example ^ wisely by rapid evaporation (or by rubbing ") of the solvent. The solvent vapors obtained can condensed to recover the solvent for reuse. It will be especially preferred. admitted, the impregnated material in a known manner directly to be introduced in steam to drive off the solvent.

009847/1822

Advantageously, the steam is essentially in the opposite direction stK »movement of the valve material flow.

The time, wätoaaä. The textile material with the. Steam. or with hot Imi t in JCoatakt is held »should be sufficient, im. essential as © total © solvents from. Material for ®ntf © ra®n and ·. sush di @ chemical reactions that take place during bleaching of the 3! materials also promote. In general, times of 20 'to 120 seconds are sufficient for this purpose, although shorter or longer times may also be used, such as, for example, 10' seconds for several minutes, in some cases - w © rd © a can ^ After the removal of the -solvent «d nsck tem bleaching, the textile material can be immediately fabric is nmmittelbar after steaming g © © w®scii a, and optionally, a further treatment, wi® s _o ^example: -.. © © in weiter® bleaching using a wäSrigsa Hatrluaicaloritlösurj, between the steaming and washing vörgenoipiaea will »

Any bleaching agent can be used, since it is stable at least as long as it is generally in the emulsion in the suspension, and in comparison with the hydrocarbon or halogenated !! f solvent ~~ and the emulsifying agent that may be present! and / od © 3? whether a surface active agent is chemically largely ad inert "- Example of a suitable lead medium siad di © Peros ^ da. _s -

₉ Hatriumhypo ^ hlorit ^ mä 5er: @ ssigsäm? © o * The "- * · - vQ £ & ug3ttf @ i @ © in the form wlE ^ igpr LÖsimgön, di © in the Sisimgsiaitfeel .emulsified- siad, v © 2? W © aä @ .te ..Es- wirü beiror-

8 2®.

Ö ORIGINAL

agrees to use aqueous solutions of hydrogen peroxide, where a typical solution is a $ 35 solution where it is the usual commercial solution.

As has already been stated, the emulsion or suspension will usually contain an emulsifying agent which advantageously is also a surface-active agent (or a wetting agent) at the same time. Alternatively, an emulsifying agent and a surface-active agent can be used * Anionic, cationic or nonionic surface-active agents and mixtures thereof can be used * Examples of suitable compounds are the KoaAtasat · of alkylphenols !!, such as, for example. Honylpbenol \ with Ithylenoxyd salts of alkyl aryl sulfonic acids> such as lbenzolsulfonsäure the amine salts of dodecene ^, Eokosnußöldiäthaaolamid "salts of a ffonosulfonsäurederivate This ters of Bemsteineäure as .zB Katrium-di (methyl © ^ !.) = - aulfosuccinati and long chain Alkyl sulfates. Also ■ '■ t · -! suitable, which increases the viscosity of the solvent, such as polyvinyl alcohol.

Any hydrocarbon or halogenated hydrocarbon (especially halogenated aliphatic hydrocarbon) can be used, such as white fuel, fri <chloroethylene, perchloroethylene »1,1,2-3Sriehloro-1,2,2-trifluoroethane νααά. Λ , 1,1-trichloroethane »Mixtures of solvents can also be used if necessary.

Those with »according to the invention. Process used emulsions and suspensions are new compositions, and accordingly According to the present invention?;? -riiia Emulsions or suspensions proposed, which ei »Soklois.-» Hydrogen solvent or halogenated hydrochloride f -

009847/1822

contain solvents, an emulsifier & a bleach. Usually the bleach is present in the form of its aqueous solution.

The concentration of the bleaching agent in the emulsion or suspension can be within wide limits, but it is usually at least 0.5% by weight, based on the total weight of the emulsion or suspension, and it can suitably be the same as in the usual ones aqueous processes is used. In most practical Bleichoperatlönen no advantage is obtained \ mtm emulsion or Suspensiönskonzentrationen γόη more than 10 wt .- ^ be used, although ^ atirlieh optionally also such higher concentrations can reach for use * In general, the greater the concentration of the bleaching agent which is usually in the form of an aqueous solution, the greater * the amount of emulsifying agent required to prepare the emulsion. It has been found that increasing the concentration of the emulsifying agent results in thickening of the emulsion. However, the use of a thin emulsion is preferred.

The bleach is usually in the form of one? aqueous solution, such as 35% aqueous hydrogen peroxide, and the amount of solution used is selected so that the desired concentration of bleach in the emulsion is obtained. Thus, the concentration of the 35% aqueous hydrogen peroxide is, for example, preferably 1.5 ^"1 O-96 parts by weight, based on the emulsion, so that the concentration of Wasserstoffreroxyds comprises about 0.5-3, 3%.

00984771812

The concentration of the emulsifier, which, as already mentioned, advantageously also, at the same time. _; .Ke.täsm _; Itr, -tel for the "textile material does not need" to be substantially ... greater than it is necessary to just emulsify the "bleaching agent or" the solution of the bleaching agent. The concentration of the emulsifier is usually. 0.25 to 5 parts by _iT-96, based on the emulsion, and preferably about .... Ϊ-2 wt .-%, based on the emulsion. In the event that both an emulsifier and a separate,. Surfactant is present, the amount of each can. Mean, 0.25-5 wt .- #, based on the emul-. sion or suspension. ...

The temperature at which the emulsion is applied to the textile material is expediently room temperature. temperature, although higher temperatures can optionally be used. The use of temperatures above tree temperature can then be preferred, for example. be when the textile material to be treated is the application zone enters in a hot state, as is the case, for example, when the Aufbringsone directly on a solvent cleaning option follows, in which a boiling solvent such as trichlorethylene, is used. If hydrogen peroxide as a bleach is used, then room temperature is preferred in this application zone, since the hydrogen peroxide at higher Temperatures becomes increasingly unstable.

The inventive method is particularly suitable for implementation as a continuous process in which the textile material continuously through an application zone, in which the emulsion is applied, directly in. ·.. one Solvent removal zone in which practical

009847/1822

the entire solvent is removed from the material by heating, for example by means of hot air or preferably steam, and then either directly to a waacfizpne or, alternatively, to another zone, in which further treatment can be carried out, such as, for example, a further bleaching treatment, ^ V ⁰ ^ then "schlieflilicli * in" a 'washing line is carried out. The first wash after removal of the solvent is usually but not """necessarily in a dilute alkaline solution, such as"'^ in a dilute aqueous sodium carbonate solution "The"^; hot or cold and can be done in a dilute alkali solution, a soap solution, or in plain water.

The device in which the inventive method is carried out, preferably has a means for the recovery of the solvent _s and in particular from the Lösungsmittelabtrennkammer. The entire device should preferably be closed to prevent solvent vapor from escaping to the atmosphere. The recovery of the solvent vapors from the solvent separation zone (and optionally also from other zones) can take place by conventional measures, for example by condensation and optionally adsorption. A water separator is normally provided to separate the condensed solvent from the liquid water. The recovered. Solvent can then be returned to the storage tank after it has optionally been cooled, wp it can be prepared for use again ^ '. '"" ..... · -....' ■. ', ... L ^.

/ tit i

continuous
The procedure described above runs; very quickly. It has been found that the time during which the textile material is steamed or treated with hot air above 100 ° C. should preferably be at least 20 seconds and in particular approximately 30 seconds. Therefore, even taking the washout into account, fabrics just coming out of the loom can be bit treated within a period of only 60-120 seconds to the extent that they are suitable for many finishing treatments.

The method according to the invention causes at least a partial bleaching of the textile material and can be used for the treatment of materials in a wide variety of forms, such as woven or knitted textile fabrics, felts and other sheet materials or loose fibers that are transported by a suitable transport system, such as a endIo _r sen conveyor belt, to be worn. Textile materials made of natural or synthetic fibers can be treated, which also applies to mixtures of natural fibers and synthetic fibers. The process is particularly suitable for the treatment of textiles that are made from mixtures of polyester fibers old cotton fibers or regenerated cellulose fibers, but textiles can also be treated that consist exclusively of cotton or whole, for example. Woven or knitted fabrics are preferably treated in open width. Fabrics as they come out of the loom or desized fabrics can be treated in the same way as many other terfile fabrics that have been singed and / or heat set prior to treatment.

0098 * 7.1822 ",

The inventive method ei :. It was particularly suitable for the treatment of woven, textiles that are open> in the state in which they came out of the loom, or of large knitted fabrics, since in this case at least partial dewaxing and partial desizing "takes place in addition to the at least partial bleaching. thus the dewaxing., the -Entschlichtung and the bleaching Ling can be performed simultaneously, wherein in a very short treatment time C 50-120 "second einschließlieh washing) a material obtained is> strong and extremely uniform Absorptions.eigenschaften up". has and thus directly to the medium or in Färan -.. '' unklere shades and for other Finishingvorgäage such Earzfinishing = B, is suitable in the cases in which ,, a complete white finish is essential that can he t indungsgemäße procedure one or more 'further bleaching processes can be added. For example: the method according to the invention resulted in a freshly woven tree "Bleached woolen fabric" with a degree of bleaching achieved by "that its blue reflection, measured with an EEl reflectometer, was improved from 64-96% to about 73%. Furthermore, a 67: ^ 5 polyester / Baiimwo3.1- »textile fabric was bleached to such an extent that its blue reflection was improved from 7Wo to about 80%. It was found that the bleaching was very-. · Permanent-. ..

The invention is further illustrated by the following examples explains in what the following procedures for analysis were used:

The wax content (wax + fats) of the fabric was determined by So3dalet extraction. In example 4 (textile fabric made of 100% cotton) was used as a traction solution

009847/1822

using chloroform !. In all other examples the solvent consisted of a petroleum ether fraction with a Qiuaeia boiling range of. 60-80 ° E. .

The starch equivalent value of the textile fabrics was in the usual manner determined by the procedure carried out by the Cotton, 'Silk and Man-Made Fibers Research / Association' of the? Shirley Institute in their ITo test sheet. Ghem. 5 is recommended;

"The material is digested with dilute sulfuric acid under such conditions that the starch dissolves completely, with minimal degradation of the fibers." The solution is then filtered, a suitable portion of the filtrate is treated with standard potassium chromate τχαά sulfuric acid digested, and the amount of dichroate consumed is by titration with a standard solution of iron (II) " ammonium sulfate using. Phenylanthran.il acid s .. determined as an indicator "«

■ The water-soluble substances were In Example 7 by S O3chlet «E3 tract ion determined, whereby a 1% solution has an a Nonylphenyol / lthyleno3 ^ d ~ l "ond €! Nsat3 (LIssapol IX ^ at a fabric sample that was previously used with one. Petroleum ether fraction with a boiling range of 60-80 ° C was extracted in a Soxhlet 4

The blue reflection of the fabric was measured using a Zeiss Eirepho Reflectometers determined. 4 determinations were made and there were two on each side of the fabric, one along the warp and one along the weft. The number given is the mean of the four -, Provisions. . :. · ..; '■ - ■ -.

Construction 00984771822

Unless otherwise stated, the HpOp was coated in a 35% aqueous HoOp solution.

At room temperature, an emulsion was made with the following approach

Gew. -Telia,

Trichlorethylene 95

Hydrogen peroxide (35%

aqueous solution) 2.5

Coconut oil diethanolamide 2.15 (Empilan-ÖDE)

Isopropylamine dodacylbenzene

Bulfonate 0.55 (Hansa IS 9 * 0

prepared by adding the mixture to the emulsifying agent was introduced into stirred trichlorethylene and then the aqueous solution of the hydrogen oxide singsriilai ^ became*

The emulsion was through. Thawing from the application of a small pilot machine on a 57: 53-jPolye3fcer / Baumvjoll-5? Exfcilstoff applied in open width, with an uptake of 160-200% eraleIt vrarda. The impregnated fabric was then passed through a non-quetaclien holle through a container with a sealed U-section which contained steam in order to remove the trichlorethylene. The duration in the steam container was approximately 30 seconds. The fabric ii / urde then introduced directly into a Waftchbox "a wäBrige etching, caustic soda solution / l of ₇ with 5 g siner concentration of the second

It is obvious that many variants. As they are obvious to a person skilled bsi, the above methods can be made without _the}

009847/1822

.-Ί5-

Bereicli of the invention is deviated from. For example, the fabric can be impregnated with the emulsion by spraying instead of dipping, and the steamer can be supplemented with a J-box »containing live steam. In the latter case, the dwell time of the fabric in the steam container can be reduced, so that the running time of the fabric and the number of rolls in this container can be reduced. In addition, the bleaching effect can be enhanced by additional bleaching in the J-3ox by adding an aqueous solution of a bleaching agent, such as hydrogen peroxide, to the underside of the J-Box.

Examples 2-7

Example 2

An emulsion was made using the following approach:

Ge w "-part trichlorethylene 96

Hydrogen peroxide g

aqueous solution) 5

Mixture of surfactants

Smocks 1

The mixture of surface-active agents consisted of a Konylphenol / Äthylenoxyd condensate, which turter the trademark Liseapol KX is available, of isopropylamine-dodecylbenzenesulfonat and of coconut oil-dietbanolaniiä, the 50 wt .-% Honylphenoi / ethylene oxide condensate contained. The emulsion was made in the open width by impregnation on © inen 67:33 polyester / cotton »Te: srt; ils-i; Gff in the Vebstufclstatus with a width of 96.5 cia dry weight of 129 s / m up to an absorption ι from. 160-200 $ (not exactly determined) impregnated, and the impregnated

009847/1822 e ^e D

ned fabric was directly introduced into a steam chamber, ~ with an inverted U section, where it brought 30 seconds with steam at 95 ⁰ C ¹ IOO in contact. The fabric, which was now largely freed from ii ^ lchloroäthjlen, was then introduced directly into a schbox W & containing an aqueous caustic soda solution (5 g / l) mit'90 ⁰ C, where it remained approximately 50 seconds. When it exited the wash box, the fabric was covered with cold. Splashed with water. The above treatment was carried out continuously in a pilot plant.

A small sample of the resultant wet! Textilstcffs was then washed in the laboratory, initially in a beaker of aqueous caustic soda (5 g / 1) enthielt- with 9G ⁰ C, during about 60 seconds, then in a beaker containing hot water of 90 ⁰ C for about 60 seconds and finally in a beaker with cold water for a few minutes. The fabric was then left to air dry «

The wax content, the starch equivalent or the residual water soluble size and the blue reflection value of the textile fabric .were determined, and. the-i results are in the following table 2 "inclined.,." in-which the corresponding Values for untreated fabric β also for Comparison are included.

Example 3-7.

The above process was repeated five times, using the fabrics, emulsions and caustic soda solutions shown in Table 1

■ - ■ rl 7 '- table ί.

"* Test material

look for I.

67'33 polyester / Cotton 123 g / m

% Cotton 133 g / m ²

hoo% wool
| i / 2

| 67 ϊ 33-Folyeste-r / cotton -. (Thermo- '

fixed) ■ 228

, Polyester / viscose

KlVRlDo
108 '

emulsion

! «WMnU

Wascübox »

Tri-

97 {

97 96 97

9?

: _o 0 _o j surface water

iffittel

nilKciVram

1 1

3 g / l at]

3 g / l at 70 ° 0

HoO at

^d i

at SO ⁰ C

3.5 SA at 35 ^° C

*, everyone of the 'l ^! e-jctilstofi.'e. was sliced like fc-Ig-fc:

plain

'ill | l * Il Willi 1-IMIIIiII 1 I ■■

Textile fabric in the weaving industry Sehlielite knowledgeable

β in Polyacrylät / S TRENGTH-ch Gemis

The surface activity was in everyone Bßispial 2 described mixture.

this in

In, -Example 7 ', are the washes in the iaboi? by a Wash, as is customary according to dsm j33.eich.en, and one Drying sequence in an O ^ vxtilQ Sill ersetst »

98 47/182 2

Textile
fabric condition Table 2
«» »WlI It « MlMl MWm ^ lIMI Strength-
eqiiiva- *
lent blueness
Refle
xion % water
soluble 76.8 absorption · * Yer-
search before Wax*·
salary
( ⁰ A) 9.58 64.8 3, ε 86.6 bad fm » ! cvj later 0.70 0.59- 70.1 0.2 Well oh bad before 0.08 -.11.4 59.6 bad Well 3 later 0.97 0.50 68.8 _v good before 0.11 io, 9 46.6 oh bad bad later 1.35 1.57 56.7 Well applies ι before 0.40 43.0 5 later 4.4 ». 57.4 before 0.18 6.32 61.8 6th later 0.88 1.49 70.9 0.28 before 7th afterwards 0.26 0.03

An emulsion is made with the following Ansatsa:

Weight 8 ~ parts

Trichlorethylene

Hydrogen pero3cya (35% aqueous solution)

surfactant (as in Example 2)

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ORfQiNAL

A small sample of 67:33 polyester / cotton fabric in the loom condition with a weight of 190 g / m was dipped in the emulsion to impregnate the fabric. The uptake was 170%, based on that Dry weight of the textile.

The impregnated textile fabric sample was held in steam of 100 ⁰ G for 30 seconds, after which it was placed in a beaker containing either aqueous itsnatron solution or aqueous Νβ ^ ΟΟ, solution (2 g / l) at 90 ⁰ C for approximately 60 seconds and then washed in hot water at 90 ^° C. for approximately 60 seconds and finally a few minutes in cold water and then dried in air. The results are given below:

Wax content
(%) Scarce
equiva-
lent blueness
reflection Absorp
tion before
later 0.83
0.39 3Λ3
0.56 68.5
75.7 bad
Well

Examples ° / - 11

These examples demonstrate the effect of the_change the concentration of the hydrogen peroxide in the emulsion and changing the surfactant. In each example, a 35% aqueous solution of hydrogen was used peroxide emulsified.

009847/1822

2022923

example
Mr. e

Textile fabric

67:33 polyester /
cotton
defected
with enzymes
g / m *
(Gray)

67:33 polyester / ·
cotton
defected
with enzymes
g / m2

emulsion

Tricbloro "ethylene

latrium disulfosuccinate

Gev.oy
Parts

94-91

'1-4 see below

-

Trichloro

ethylene

Nonylphenoil / Ethyleno2cyd condensate (Lissapol NX)

67:33 polyester / trichloro-95 »5-97 cotton 'ethylene
(Loom condition) HgOp 2-3.5

g / ffi nonylphenol /

Ethylene oxide condensate I3 opr opylamind ode cylbenz o.lsuli'onat ϊ 98-95

Coconut oil diethanclamic

Treatment I

available under the trademark Hansa 1146

tob orte as described in example 8 - uptake 170% .rfeLgphinenteat as described in example 2 - uptake 170%

Alkaline concentration in the Ivaschbox - 3 g / l?

- 7O ⁰ C

Fabric dried by ironing (and a

simulate hot drum drying on ■ "00-9847 / 18 22)

8AD ORIGINAL

The blue reflection of the treated textile fabrics was dimmed »

Table 4

at blueness before , 0
, 0 U6.H Reflection (%) SStE 2 ° 2 5% H. ° 2 4f6 E ₂ ° 2 game
No. , 72 , 6 79
79 2 ° 2 βο
79 , 0
, 0 79
79
3.5% O
ei c 79
79
> , 7
, 0 9
10 63 - , 0
• 0 70 70 8th - 11th

Examples 12-14

These examples show the effect of changing the top surface action füttels on the removal of wax and Sizing agent, from dan Textilstoff en.

Samples of a 675 3.3 polyester / Baufiwoll textile fabric in the loom state with a weight of 190 g / m were treated by the laboratory test method of Example 8 with an emulsion containing 96 parts by weight of trichlorethylene, 3 parts by weight of Wasßeretoffpsroscyd and 1 wt Part of Miachung contained surfactants. The uptake was in each example '\ The wax content and starch equivalent of the fabric β were determined before and after the treatment.

009847/1822

ORIGINAL

Tabel*?

At- j
game' surface active agents; Wax--
salary Strength-
equiva
lent before
after
here 12th Nonylphenol / ethylene oxide
condensate (Lissapol NX)
Isopropylamine-dodecylben-
zolsulfonate,
(Nansa YS 94) 1.62
0.41 4.46
0.58 before
after
here 13th Lissapol NX
a sulfonated ester
(Lankropol KO) 1.52
0.43
■ 4.46
0.58
4.46
C55 ahead
after
here 14th Lissapol NX
Isopropylamine dodecyl
benzenesulfonate
Coconut oil diethanolamide * 1.62
0.42

* Maas * H'146

Examples 15- '20

Theeaa examples demonstrate the "use of different Hydrocarbon solvents also contain halogenated hydrocarbon solvents.

An emulsion was applied to the fabric then steamed by the laboratory test drive iron Heiepisl 8 and then washed. BIe emulsions are in Table 6, and the wash box contained 3 gA of caustic soda instead of 2 g / l, as given in Example 8 is. The fabric was sized in each case. In Examples 19 and 20 the fabric was dry ironed and not air dried »

009847/182 2

8AD ORIGINAL

Table 6

at Textile fabric I. Il • F. Il emulsion Ge v.- on • 150-170 ■ blueness before after
here f before 68th, 5 her i game Parts took reflection here 1 here ι No. 67:33 polyester / (%) (%) after after*
here i 15th 67:33 polyester / cotton Trichloro 65 ₅ O here cotton 133 S / m ² ethylene 96 190 g / m ² Il HpOp (35% £ 150-170 73.0 before aqueous solution 150-170 here sung) 2 ; before- after Surfaces- 65.0 ago here medium A 2 76.0 16 Perchloro- 150-I7C M. ethylene 96 H ₂ O ₂ 2 before superficial 65.0 here medium A 2 76.9 after
here 17th Mathylenchlo- rid 96 H ₂ O ₂ ■ 180 QA , i> {pre-. surfaces 65.0 here medium A 2 76.9 18th 1,1,1-trichlo raw 96 H ₂ O ₂ 2 130 Whether β rf lache n- E means A - 2nd 64.5 19th 1,1,2-trichlo 71.4 ro-1,2,2-tri- fluoroethane 96 H ₂ O ₂ 2 surfaces medium B 2 20th white fuel 96 H ₀ Op 2 C d Surfaces- medium B ²

009847/1822

bath

Surface middle I ₁ A leopropylamine-dodecylbenzenesulfonate -

"" Coconut Oil Diethanolamide.

F inishes medium B Isopropylamlndodecyl-benz.olsulfonat

These examples demonstrate the effect that is obtained if the solvent is mixed with fresh air Steam removed.

(a) The fabric was treated in a laboratory-scale cloth / steaming unit designed for fabric strips approximately six inches wide. * The emulsion was pad applied to the fabric (150% pick-up) on what? Fabric was then inserted directly into steam at 90-100 ⁰ C and "Approximately there remained 30 seconds. A small sample of the resultant fabric was washed as in Example -8 and then ironed dry..

(b) The above procedure (a) v / urde "repeated -with the difference-that steam was used instead of air with 90-100 ⁰ · G '

Table 7

Example no.

21

Textile fabric

67:33 polyester / cotton

153 g / m ² (loom condition)

Tr iehl oro ätliy *

H ₂ O ₂

* Surface agent (inclusion

Parts by weight

97
2

blue reflection

64.5
70.0

69.6

"Continuation-·

before after-J after

later

0098 47/182

JAO-ÖRIGI

Table 7 (continued)

22nd 100% cotton Trichloroethy- 97 36.9 before 133 g / m ² len here (Loom condition) H ₂ O ₂ 2 45.2 after her (a) * Surfaces 1 43.8 after middle her (b) (Recording 130 #)

* The mixture described in Example 2.

Examples 23 and 24

These examples show the effect that is obtained when changing the length of time the impregnated fabric is in contact with steam.

The laboratory test procedure outlined in Example 8 was followed used to make the fabrics shown in Table 8 to treat. The emulsion used was the following:

Trichlorethylene

Weight "" Parts 97

H ₂ O ₂

Surfactant mix of

Example 2 1

The first wash was carried out in aqueous Itssnatronlösung of 3 g / l at 9O ⁰ O. The treated fabrics were ironed dry "

009347/1822

- 26 -Table 8

at
game
Mr. Textile fabric before blue reflection (96) 20th
Sec. 30th
Sec. 4C
Sec. 120
3ek. 23
24 67 «33 polyester / ~
Cotton 133 g / m ^
Loom condition
(Uptake 120%)
10096 cotton
133 g / a *
Loom condition
(Absorption 200%) 63.9
5 ^, 8 10
Sec. 73.6
65.6 73.0
64.9 73.6
65.7 73.4
56.5 7212
65.5

Examples 25 and 26

These examples demonstrate the use of others Bleaching agents as water peroxide. pas procedure was v / ie in Example 8, but with caustic soda in a concentration of 3 g / l at 90 ° C used for the first wash became. In addition, the material was ironed dry and not air dried.

The emulsions used were as follows:

Parts by weight

Trichlorethylene bleach

Surfactant mixture from example 2

97
2 (H ₂ O ₂ )
1 95
4 (CH ₃ Cp ₅ H)
1 96
1 (E ₂ O ₂ )
2 (CH ₃ CO ₃ H)
1

0098Λ7 / Τ822

BATH

- 27 Table 9

at
game
No. Textile fabric blue © reflection A. B. G 25th
26th 67:33 polyesters / tree
-wool 133 g / m ²
Loom supply
(Recording 12056)
100% cotton
133 g / m ^
Loom condition
C recording 2Q0 #) before 76.5
44.0 74.5
46.7 76 | 9
44.8 68.8
36.4

Examples 27-29

The laboratory test procedure of Example 8 (but with ironed dry and not air dried da): ".. ^". was used to <? the fabrics shown in! Table 10 in the loom state with a bnuleion of the following Approach:

Trichlorethylene H ₂ O ₂

Surfactant mix of
Example 2

Ge w> parts

■ 97

The first wash was carried out with 5λ of a caustic netron solution a concentration of 3 g / 1 instead of a caustic soda solution of 2 g / l.

it follows on p. 29

009847/1822

-it

valley Textile fabric Dent 10 blue reflection later before 78.9
72 ₁ 0
80 »2 at
game 100% nylon (knitted
230 g / m2
NyIon / cotton
230 g / m ²
Polyester threads
(woven)
75 g / m ² recording 75.6
66.2
74.8 ' No. 27
28
29 b)
230%
150%
. 100%

Example 30

This example shows the durability of the bleaching obtained by the process of the invention.

A 67 * 53 polyester / cotton fabric with a weight of 190 g / m 2 was described by that in Example 2 Processes (including steaming and washing) treated, but in this case an itsmatron solution with a Concentration of 3 g / l at 50 ° C in the wash box with the the following snulsion (intake 160-200%) used »

(Prichlorethylene ^H 2 ° 2

Surface mean of Ex * 2

97 2

Sine sample of daim Textilatoffs was suspended in the air ei it to 100 ⁰ G heated furnace and dör Heflexioas- "rurde per5.odisch determined. '

00 98 47/1822

8AO

nj-

blue reflection (%)

initially 78.3

hour
77.6

Hours ι 3 hours 77.7 1 77.0

5 hours 76.1

Examples-31 and 32 ■

These examples show the "use of a second bleach immediately after the steaming and first wash in caustic soda. The procedure was as described in Example 8 is specified. The emulsion was that used in Example 2 Emulsion*

The fabric, after being steamed for 30 seconds, was immersed in a beaker containing 3% by weight hattrum chlorite (80% chlorite) and 3 ml / 1 40% formaldehyde in Contained water at room temperature. The admission was fraudulent 100% based on the weight of the fabric. The impregnated Fabric was then left overnight before being washed and bent dry.

Tabel

example

Textile fabric

r ~ & ufaufnahme

Emulsion

On- I
would take Ι

Star- »blue keeleefle equivalent

xion

67:33 polyester / cotton

190 g / m ²

Wsb stuhlzus band

100% cotton 133 g / m <2
Loom condition

170

120

jvor-0.83

[her

afterwards 0.20

before-2.23 '100

afterwards 0.85

3.4: 5

0.56 9.15

2.65

76.1 36.9

62.2

009847/1822

These results show that intermediate bleaching with chlorite does not adversely affect the process.

009847/18 ^ 2

Claims (33)

P α t e η t a η a ρ r ü ehe 1. Method for the treatment of textile materials, 'thereby characterized in that an emulsion or suspension of one or more bleaching agents is used on the textile material in a hydrocarbon or halogenated hydrocarbon solvent applies the solvent largely removed from the textile material and then washed the textile material « 2. The method according to claim 1, characterized in that it is connected net that the solvent is rapidly evaporated to it to "eliminate" from the textile material. 3. The method according to claim 2, characterized marked net that the solvent is thereby evaporated, that the textile material is brought into contact with steam. 4. Procedure according to. Claim. 3, marked thereby net that the textile material is treated with steam, which moves essentially against the direction of movement of the textile material. 5. The method according to claim 2 _t characterized gekennssich net that the solvent is evaporated in that the textile material is brought into contact with hot air. -ORIGINAL 009847/1822 6. The method according to claim 3 or 4 ·, characterized in that. the textile material during a Is brought into contact with steam for a period of 20-120 seconds. · 7. The method according to any one of the preceding claims, characterized characterized in that the emulsion or suspension contains an emulsifying agent. 8 »The method of claim 7 characterized geke * η η ζ net calibrated that the emulsifier is a surface active agent. 9. The method according to claim 7? characterized GEK e η η ζ β i net that said emulsion or suspension contains a surfactant in addition to an emulsifying agent. 10. The method according to any one of the preceding claims., characterized in that the textile material after removing the solvent, washing is carried out with an alkaline aqueous solution * 11. The method according to any one of the preceding claims, characterized in that after removal of the solvent, the textile material is subjected to one or more further treatments before it is washed « 12. The method according to one of the previous claims, characterized in that as BIe: tchmitte]. Hydrogen peroxide is used » 09847/1822 13- The method according to any one of the preceding claims, da- 'by ge ke η η ζ e I ch η et that an emulsion of a solution of the bleach in the hydrocarbon or halogenated hydrocarbon solvent is used. 14. The method according to claim 13 * thereby k en η ζ Ei ch η e t that the emiilsion is an aqueous solution of bleach- contains. 15 · The method according to claim 14, characterized in that g e k e η η -2S e i ch η e t that the emulsion is 35% (weight / weight) contains aqueous hydrogen peroxide, 16. The method according to any one of the preceding claim, characterized characterized in that as a solvent a halogenated aliphatic hydrocarbon is used will. 17. The method according to claim 16, characterized in that g β k e η η ~ ζ e i η et _? that the solvent is a chlorinated aliphatic hydrocarbon. 18. Method according to claim 1? » characterized in that the solvent. ' Trichlorethylene is * 19. The method according to any one of the preceding claims, characterized geke naze ic h η e t. ,. that the textile material consists of fibers on which a lubricant has been applied. 009847/1822 2Ü22929 απ 20. The method according to one of the preceding claims, " thereby g e k e η η ζ e i c h- η e t that the textile material is in the state as it is from the loom comes out. > 21. Emulsion or suspension, characterized in that it consists of a hydrocarbon or halogenating hydrocarbon solvents, a te Emulsifier and a bleach = / or suspension, 22. Emulsion / according to claim 21, characterized in that it contains an aqueous solution of the bleach. 23 »Emulsion according to claim 21 or 22, characterized in that g e k e: a η draws that the bleach is hydrogen peroxide. ■ 2M-. Emulsion according to claim 23? characterized in that it contains a 5% (weight / volume) aqueous solution of hydrogen peroxide. 25. An emulsion according to any one of claims 21 to 24, characterized in that the concentration of the bleaching agent 0,5-1O wt _o -%, based on the GsBamt the emulsion is, " 26. An emulsion according to Anspruch.25, characterized gekea η ζ e leans that they 1 ', 5-10 wt -% contains an aqueous Wasserstoffperoacydlösung.. 27. Emulsion or suspension according to one of claims 21 to 26, characterized in that g © k β η ώ. s ei ch η et, ii & P- the emulsifier at the same time, a surface-active one ar Means is. or suspension 28. Emulsion / according to one of claims 421 to 2 ?, characterized g e k e η η show that the concentration of the Emulsifier 0.25 to 10 wt. ~ #, Based on the emulsion or suspension. 29. Emulsion or suspension according to one of claims 21 to 28, characterized ge k β η η ζ e ic h η et _? that it also contains a surface-active agent as an emulsifier Γ 30. Emulsion oder.Suspension according to claim 29, characterized Geke η η ζ eich η et that the concentration of the surface-active agent is 0.25 to 10 wt .- #, based on the emulsion or suspension. 31 · Emulsion or suspension according to one of the claims 21 to 30, thereby ge k e η η ze i c h net that the Solvent is a halogenated aliphatic hydrocarbon, 32. Emulsion or suspension according to claim 31? through this ge k e η η ζ e i c h η e t that the! (solvent Is trichlorethylene. 33. Emulsion or suspension according to one of claims 29 or 3O ₅ characterized in that it contains a mixture of an alkylphenol / alkylene oxide condensate, a sale of an alkylaryl-avulfonic acid and a fatty alcohol-ethanolamide * 00 9 847/18 22 2022329 54ί Emulsion or suspension according to Inöprtiölt 33; ψ marked "dlaf the Geiaisefci benzöleulfonat and KökößntißSI * -diathaüöißfflia 35 · Emulsion or suspension marked iiseii itniäpfliön _t d & ß iä Konylpiienol / iitliyIenö ^ dE "ojideiisatö ztii füieltiiliig auö ISt * propylamine-dodeoyl-benzoisiiifönet and nolamid 1r1 is * u, 'iHm m m