DE1619030A1 - Process for the finishing of textile materials - Google Patents

Description

FARBENFABRIKEN BAYER AG

LlVERKU S EN'Biyerwerk P.tent Abbey «July 22, 1968

B / bu

Process for the finishing of textile materials.

The invention relates to a process for the refinement of Textile materials; the procedure consists in making the textile materials Treated with an aqueous liquor, .the polymers produced in addition to vinyl or divinyl monomers or copolymers and in addition to containing isocyanate groups. Reaction products, which consist of at least two active water st off-atom-bearing compounds with a molecular weight of 500-10 and / or at least two active hydrogen atoms carrying

Organopolysiloxanes with molecular weights up to 25,000 and polyisocyanates are produced, with additives of 0.1-10 g per liter of water-soluble salts of metals from subgroups I, II or VIII of the Periodic Table of the Elements containing lower mono- or polycarboxylic acids, the textile materials if necessary, dries and then a post-treatment subject.

This post-treatment can be either by 1/2 - 10 minutes steaming with steam at 100 - 110 ⁰ C max or duroh 3 -. 30 minutes treatment with water of 10 - 100 ⁰ C take place, wherein at temperatures below v> n 6O ⁰ C the water expediently per liter 1 - 30 trains 5 g hydrogen peroxide or 0.1 Siges -1g the isocyanate reaction with älktive hydrogen atoms containing compounds accelerating Catalytic set to be st. LeA 10 262 909834/1513

ΜβΙΙβ UnteiteOen t * ft7 ^ Aba ^ Nt.lS * te3 (Ie8Ändeninjwefc ».«. 9.1967}

An addition of 0.5 - 5 g per liter of surface-active substances This often proves to be cheap.

The aftertreatment in water can take the form of simply dipping and soaking the textile materials or as a washing process be performed. It takes between 3 and 30 minutes, generally 15-20 minutes.

In practice, the post-treatment methods according to the invention are used with their variants to be selected from case to case according to the given conditions.

The aftertreatment of the impregnated and dried textile materials can be added directly to the drying, but just as easily up to 24 hours afterwards, so that there are sufficient temporal possibilities for variation that allow an optimal production process according to the technical equipment.

As salts of I., II. Or VIH. Zinc, cadmium, copper and nickel salts are preferably used as a subgroup of the Periodic Table of the Elements. Acids suitable for salt formation are, for example, lower carboxylic acids such as formic acid, acetic acid, trichloroacetic acid, propionic acid, butyric acid, valeric acid, lactic acid, malonic acid and glutaric acid. Preferred additives

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are the zinc salts of lower monocarboxylic acids, such as. B. zinc acetate or zinc propionate. The salts come in amounts ranging from 0.1 to 10 g, preferably 0.2-1 g per liter of liquor for use.

As vinyl or divinyl monomers, those to be used according to the invention Polymers or copolymers may be based, for example: Ethylene, propylene, vinyl chloride, Vinyl acetate, vinyl ethyl ether, also styrene or divinylbenzene, butadiene, isoprene or chloroprene and c *, ß-unsaturated Carboxylic acids, such as acrylic acid, methacrylic acid, and their nitriles, esters and amides. Polymers which react .. possess groups capable of isocyanate, are in general- preferable to common ones; this includes ζ. B. those made of acrylic acid, Methacrylic acid, its hydroxyalkyl esters or amides Polymers or copolymers, as well as the copolymers that are obtainable by using N-methylolacrylamide or N-methylol-

methacrylamide or their reaction with at least one

further functional group-containing alcohols prepared Derivatives with other olefinically unsaturated compounds copolymerized, for example according to the process, the French U.S. Patent 1,328,255.

Examples of polymeric organic compounds containing active hydrogen atoms and having a molecular weight of 500-10 which are the basis of the reaction products containing _{9 isbcyanate groups to be used according to the invention are polyalkylene}

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glycols such as polyethylene, polypropylene, polybutylene, _{Polyhexylenglykole>} or copolymers and graft polymers of these polyalkylene underlying alkylene oxides and Polythioätherglykole, di (

by condensation of thiodiglycol on itself or with Sulfur-free polyalcohols are available. Also suitable are polyesters formed by condensation of dicarboxylic acids with polyalcohols or by condensation of hydroxycarboxylic acids be won. Polyester amides, such as those described in US Pat. No. 2,424,883, can also be used Polyacetals as described in German patents 1,039 and 1,045,095.

All of these higher molecular weight organic compounds preferably have two or more free hydroxyl groups; suitable but also those with free carboxyl, mercapto or Amino groups. Molecular weights of these compounds up to 10 are allowable, although the preferred range is between 750 and 5,000 lies.

In addition to those containing high molecular weight, active hydrogen atoms Compounds can also contain smaller amounts of low molecular weight compounds, e.g. B. Diols, which have a modifying Impact on the properties of the end products used will· . ·

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Further suitable compounds for the reaction products containing isocyanate groups are at least two active hydrogen atoms containing organopolysiloxanes of the general formula

V ⁱ⁰ 4-n ■ -

"T"

in which η is greater than 1 and at most equal to 3 and in which each

Substituent R is one of the radicals R ', -XY or YXY, where R ^{1 stands} for an optionally indifferently substituted aliphatic, cycloaliphatic or aromatic hydrocarbon radical, while X is an aliphatic or araliphatic bivalent or trivalent radical, which is an ether, thioether-j ester - Or may contain amino groups, and Y stands for a hydroxyl, sulfhydryl, carboxyl or carbonamide group or for a secondary amino group j with the indication that at least two siloxane units of the formulas

or
XY

in which R ¹ , X and Y have the meaning given and m is the number 1 or 2, and the substituents E in the other siloxane units are exclusively the radicals R ¹ .

As hydrocarbon residues for which R ^? stands _? Examples include: methyl, ethyl, isopropyl, tert-butyl, octadecyl, allyl, chloromethyl, trifluoropropyl, cyclohexyl, phenyl and

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Tolyl; Preference is given to polysiloxanes of the formula given in which R ^{1 is} methyl or phenyl. Bivalent or trivalent radicals represented by X are, for example, the following;

-CH ₂ -,

, -CH ₂ -CH (CH ₃ ) -,

-CH = CH-CH ₂ -,

-CH ₂ -O-CH ₂ -CH ₂ -, -CH ₂ -O-CH (CH ₃ ) -CH ₂ -, -CH ₂ -S-CH ₂ -CH ₂ -,

, -CH ₉ -O-CH

CH

-CH ₂ -O-CO-CH ₂ -,

-CH ₂ -O-CO-CH (CH ₃ ) -, -CH ₂ -NH-CH ₂ -CH ₂ -, -CH ₂ -N (CH ₃ J-

- CH / y -

-CH ₉ N

As representatives of the polysiloxanes of the formula given at the outset for example, consider the following:

HO-CH ₂ -Si (CH ₃ J ₂ -O ^ Si (CH ₃ J ₂ -O CH ₃ Si | / ÖSi (CH ₃ ) ^ - 0-Si (CH ₃ ) ₂ -CH ₂ Oh)

₂ -CH ₂ OH

0- ^ Si (CHj) ₂ -O ₁ .Si-O- ^ Si (CH ₃ J ₂ -O

_£ 'Si (CHj) ₂ -O,

ii (CHj) ₂ -CH ₂ OH ii (CH " ₃ ) ₂ -CH _{2 OH}

Ii (CHj J ₂ -CH ₂ OH

(0- £ si (CH ₃ ) 2-Og-Si (CH ₃ ) Si-O-Tf Si (CH ₃ ) ₂ -0 ^ -Si (CH ₃ ) OfSi (CH ₃ ) ₂ -0 | -Si ( CH ₃ )

z = 0 - 130 ζ = 0 - 45

a, b, c = 7 a + b + c = 21

a, b, c S a + b + c =

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HO-CH ₂ -CH ₂ -O-CH ₂ -Si (CH ₃ ) 2-

HO-CH ₂ -CH ₂ -S-CH ₂ -Si (CH ₃ ) 2-0- ^ 31 (0 ^) 2-0 ^ 31 (CH ₃ J ₂ -CH ₂ -SC H ₂ -OH HO

^ AO-CH _? Si (CH ₃ ) 2-TfSi (CH ₃ ) 2 "-Og ₅ Si (CH ₃ ) ₂ -CH ₂ 0- ^

.0- / Si (CH,) P-Oj-Si (CH,) ,, - ΟΉ ,, - Ο-ΟΟ-ΟΗίΟΗ,) - OH / 5 2 -a t> 2 Z}

CH,.-Si-O-Z Si (CH,) o-O £ -Si (CH,) ₉ -CH "-O-CO-Cli (CH ^,) -OH O

a + b + c =

HO-CH ₀ -CHx, ^ CH ₉ -CH ₉ -OH

*. ^<f N-CH ₉ Si (CH,) ₉ -O- / §i (CH,) ₉ -O? -Si (CH,) ₉ -GH ₉ N ^d - ^ά

^ ^d * ^ά * ^d ~ ^{Ld 5} - ^^ CH ₀ -CH ₀ -OH

HS-CH ₂ -Si (CH ₃ J ₂ -O-TfSi (CH ₃ ) 2-0 ^ Si

(CH ₂ ) ₃ -NH-CH ₂ -Si (CH ₃ ) ₂ -0- ^ fSi (CH ₃ J ₂ -0fj-Si (CH ₃ ) g-CH ' ₂ NH- (CK ₂ ) ^

Polysiloxanes of this type are known; They are e.g. in Germany BatentSchriften 1 193 046, 1 195 953 and 1 199 772, in the German Auslegeschrift 1 196 869, in the British Batentschriften 980 778 and 995 394 as well as French patents 1 361 115 and 1 365 050.

Monofunctional can also be used proportionally in small quantities Organopolysiloxanes.

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Polyisocyanates are used for the manufacture of the urination products preferably aliphatic and cycloaliphatic diisocyanates. Examples include tetramethylene diisocyanate, Hexamethylene diisocyanate, 1,4-cyclohexane diisocyanate, 4,4'-dicyclohexylmethane diisocyanate and 2,4- and 2,6-hexahydrotolylene diisocyanate. Also suitable are aromatic diisocyanates, such as p-phenylene diisocyanate and 2,4- or 2,6-toluene-

diisocyanate, and triisocyanates, such as the reaction product of the formula OCN- (CH ₂ ) _g -N / "- CO-NH- (CH ₂ ) g-NCO-J ^ which can be obtained from 3 moles of hexamethylene diisocyanate and 1 mole of water. The preparation of the isocyanate groups The reaction products containing isocyanate groups can also be used in the form of the known bisulfite addition products.

The impregnation liquors can be produced in such a way that the with the addition of inert, non-hydrophilic solvents such as benzene, toluene, ethyl acetate, gasoline or chlorinated hydrocarbons Isocyanate group-containing reaction products of the above type brought to a low viscosity, with the aid of a High-speed stirrer in water, which in addition to the according to the invention

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containing salts to be added 0.5 - 10 ^c /> suitable emulsifiers. The polymers or copolymers to be used, mostly in the form of their aqueous dispersions, are then stirred in and the liquor is diluted with water to the desired concentration.

Suitable for the preparation of the impregnating emulsifiers are those from the series of ionic and non-ionic emulsifiers that provide oil-in-water emulsions, without exerting a catalytic strong influence on the isocyanate-water reaction. Are used z. B. the latrium salts of paraffin sulfonic acids, alkylarylsulfonic acids and the acidic sulfuric acid esters of higher aliphatic alcohols and oxyethylation products of long-chain alkylphenols.

On the addition of the organic solvent can under certain Conditions e.g. B. with very low viscosity I so cya na t before polymers, be waived. Other methods of manufacturing the liquors are also possible; so you can use the water-ih-oil emulsion, which is reversed when excess water is added.

The weight ratio between the polymers or copolymers and the reaction products containing isocyanate groups is expediently 0.25-4 s 1. The content of the aqueous A liquor of the polymers or copolymers and the reaction products containing isocyanate groups can also be used within wide limits - between 2 and 70 percent by weight -

vary. . ■

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The treatment of the textile materials with the according to the invention to using aqueous liquors can be carried out in such a way that one the Textilmaifcerialien with the eligible aqueous Soaks liquors, then to a weight gain of about 40-150 preferably 70 - 100 #, squeezed, thrown off or vacuumed, dries and aftertreated as explained above. You can also spray the textile materials with the aqueous liquor, then dry and treat afterwards.

The method according to the invention allows textile materials to be made more natural or of synthetic origin, for example textile materials made of cotton, regenerated cellulose, wool and Excellent finishing of silk, polyamide, polyurethane, polyester, polycarbonate, polyacrylonitrile or polypropylene fibers, especially with regard to crease resistance and abrasion resistance or dimensional stability. A particular advantage of the The method according to the invention consists in that the textile materials after impregnation and optionally Drying and post-treatment have a dry, non-sticky feel that does not change with storage. The handle of the equipment is determined by the choice and composition of the two components, i.e. H. the polymer or copolymer emulsions and the reaction products containing isocyanate groups can be varied to the desired extent from soft to hard.

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Unless otherwise specified, those are in the following examples specified parts by weight.

example 1

A blended fabric of 55 $ polyacrylonitrile fibers and 45? ° wool is treated with an aqueous liquor described per liter 20 g of a 40 $ aqueous dispersion of a mixed polymer of 80 parts of acrylic acid _r butyl ester, 10 parts of styrene and 10 parts of acrylamide and 30 g of the below Contains emulsion of a reaction product containing isocyanate groups and 0.3 g of zinc acetate.

The mixed fabric made of polyacrylonitrile fibers and wool is squeezed off to about 90 io Plottenaufnähme, 10 minutes at 100 - treated 11O ⁰ C and then dried up to 1 minute using steam of 102 ⁰ C. The fabric treated according to the invention shows a full, pleasant feel and the following advantages compared to an untreated fabric.

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- "Yes: -. ■

Dry crease angle Wet crease angle KS K S

untreated fabric:

fabric treated according to the invention:

132 ° 121 '

168 ° HO ⁰

120

fo shrinkage after 5 machine washes 30 ⁰ C

K S

Product image

untreated

Fabric: -4.2

fabric treated according to the invention: -0.6

-3.8 matted

-0.4 not matted, clear and open

Abrasion resistance

untreated fabric:

430 tours

according to the invention

treated fabric: 580 turns

The emulsion used of the reaction product containing isocyanate groups was prepared as follows:

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3000 g of a branched polypropylene glycol having a molecular weight of about 3000, an OH number of 55t5 and an acid number of 0.5 was charged with 535 g of hexamethylene diisocyanate for 2 hours at 110 ⁰ C and then for a further 1 1/2 hours 130-140 ⁰ C ". heated from 500 g of the reaction Produkter obtained whose content of." free. Isocyanate groups was 3.9 percent by weight, an emulsion was then prepared with 100 g of ethyl acetate and 400 g of v / water with the addition of 4 g of a paraffin sulfonate in the usual way.

Example 2

Bobbins made of wool yarns were mixed with aqueous dispersions of the copolymers described in Example 1 and the im Example 1 described emulsion of an isoyanate group Reaction product and the emulsion, described below, of a reaction product containing isocyanate groups and based on an organopolysiloxane. the The liquor also contained 0.3 g per liter of copper acetate.

The amounts used for the emulsions were based on the weight of the goods the woolen yarn covered:

10 fo the emulsion of the isocyanate group-containing reaction product described in Example 1

5 $> as described below emulsion of an isocyanate possessing reaction product on the basis of an organopolysiloxane

15 # of the aqueous dispersion described in Example 1 a mixed polymer.

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The treatment was carried out in such a way that this liquor was pumped in alternating directions from the inside to the outside or from the outside to the inside through the winding body.

The treatment of the wound body was carried out for 40 minutes at 20 ⁰ C. It was then per liter of treatment liquor 0.2 g of a mixture of glycolic acid and stannous chloride in the ratio 1: 1.5, and further added at 20 ° C for 20 minutes treated .

Subsequently, the wound body were spun wool yarn and dried at 100 ⁰ C. The wool yarns treated in this way have the following properties:

Shrinkage after

3 machine washes at 60 C -

untreated yarn: 22 #

treated according to the invention

Yarn: 0.6 #

Matting of untreated yarn: completely matted

treated according to the invention.

Yarn: not felted, open '

The yarn treated according to the invention has a pleasant, woolly feel and is ideally suited for further processing for woven or knitted articles.

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The emulsion of the reaction product containing isocyanate groups » on the basis of an organopolysiloxana was prepared as follows:

1,000 g of a 2.7 percent by weight hydroxyl group Organopolysiloxane of the formula

H0 - CH ₂ Si (CH ₃ ) ₂ - £ ^L O-Si (CHj) ₂ T ^ TTJ O-Si (CH ₃ J ₂ -CH ₂ O :!

was mixed with 1 g of 1,6-óôéò Hexainethylendiisocyanat mixed and heated for 2 hours at 120 ⁰ C. The excess diisocyanate was then distilled off at 160 ° C. in a thin-film evaporator at a pressure of 0.1 torr. A 50% emulsion was then prepared as described in Example 1 with 100 g of ethyl acetate and 400 g of water with the addition of 4 g of a commercially available surface-active paraffin sulfonate from 500 g of the reaction product thus obtained, the content of free isocyanate groups being 5.7 percent by weight.

Example 3 -. .

Bobbins made of wool yarns were as described in Example 2 with aqueous dispersions of copolymers and Treated reaction products containing isocyanate groups.

Instead of 0.2 g of the mixture of glycolic acid and stannous chloride of Example 2, 4 g per liter of an emulsion were added, which was prepared as follows ι

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5 g of dibutyltin dilaurate were emulsified with 15 g of ethyl acetate, 88 g of water and 1 g of paraffin sulfonate using a tendon stirrer. Using this emulsion, the packages were treated for 20 minutes at 20 ⁰ C, then centrifuged or filtered off with suction and dried at 10O ⁰ C.

The wool yarns treated in this way showed a shrinkage of $ 0.7 after 3 machine washes at 60 °, have a pleasant, soft grip and are not matted.

Example 4

Was poulard-like treated with an aqueous dispersion containing 20 g of a 40% aqueous dispersion of a copolymer of 60 parts of butyl acrylate, 30 parts of styrene and 10 parts of acrylamide, and 60 g of the emulsion of an isocyanate group-containing reaction product described in Example 1 and per liter Contains 0.4 g of zinc propionate. The WolTkannnzug was squeezed off to a liquor uptake of 80 ° and dried at 110 ° C. 102 ⁰ C treated for a few minutes - was subsequently treated with steam at one hundred and first

The yarns prepared from the treated wool top according to the invention show, after several washes at 60 ⁰ C no felting, the shrinkage is greatly reduced compared with untreated material.

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Example 5

Kin fabric made of polyacrylonitrile fibers is treated with an aqueous dispersion containing 10 g of the described in Example 4 oenen dispersion of a copolymer and 30 g of the emulsion of an isocyanate group-owning reaction product described below and 0.5 g of zinc acetate per liter. The fabric is squeezed to 60 $ 'wet pick-up, at 120 ⁰ C for 10 minutes and then treated dried with steam at 102 ⁰ C for a few minutes.

The fabric treated according to the invention shows a full dry handle, and is excellently improved in the crease \ e "hold ^ as the following comparison shows:

Dry crease angle Wet crease angle K SK S-

untreated fabric: 120 ° 121 ° 125 ° 130 °

treated according to the invention

deltoid tissue: 160 ° 162 ° ^; 145

The reaction product having isocyanate groups on the basis of a thioether was prepared as follows:

500 g of a polythioether, which by condensation of 700 parts of thiodiglycol and 300 parts of 2,2-dimethyl-propane-diol- (1,3) up to

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an average molecular weight of 1900 (OH number 59) was produced, were heated ^{to 110 0 C with 500 g of hexamethylene diisocyanate for one hour.} The excess diisocyanate was then separated off from the reaction mixture by distillation at temperatures up to 150 ° C. at a pressure of 0.1 torr. A 50% emulsion was then prepared from 500 g of the reaction product obtained, the content of free isocyanate groups was 4.3 percent by weight, 100 g of ethyl acetate and 400 g of water with the addition of 4 g of a commercially available, surface-active faraffin sulfonate.

Example 6

According to Example 5, woven fabrics made of polyester fibers were made and polyamide fibers.

The fabrics treated according to the invention have a full, non-sticky feel and the following advantages in terms of crease behavior:

Fabric made from polyester fibers

Dry crease angle wet crease angle .K SK S

untreated fabric:

fabric treated according to the invention

Fabrics made from polyamide fibers, untreated fabric;

fabric treated according to the invention:

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Example 7

A "" cotton fabric is treated with an aqueous liquor containing 100 g of the dispersion of a copolymer described in Example 4, 100 g of the emulsion described in Example 1 of a reaction product containing isocyanate groups and 90 g of dimethyloldihydroxyethylene urea, 10 g of magnesium chloride and 0.5 g of zinc acetate . Bas tissue is squeezed off to a liquor pickup 90 fo and heated for 5 minutes at 15O ° C. It is then treated with steam at 102 ° C. for a few minutes.

The fabric treated according to the invention shows a pleasant one full grip and like out of the. The following comparison shows excellent creasing behavior and improved rub resistance.

Troekenknitterwinkel

K S

Wet crease angle K S

untreated fabric:

treated according to the invention Tissue:

90

145

150

145

155

Fire resistance

untreated fabric: 250 turns

Fabric treated according to the invention: 380 turns

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Example 8.

Wool knitted pieces were treated with an aqueous liquor containing, per liter, 20 g of the dispersion of a copolymer described in Example 4 and 60 g of the emulsion of the reaction product described in Example 1, as well as 0.3 g of zinc acetate. The knitted pieces were centrifuged to about 70 $ PIottenaufnähme treated at 110 ⁰ C dried and then stored at 40 ⁰ C with a liquor containing 3 g per liter of a 30 ^ strength hydrogen peroxide solution. After a treatment time of 15 minutes, the same bath is used for dyeing with acid dyes.

In contrast to untreated knitted pieces made of wool the knitted articles treated according to the invention do not felt during the dyeing process. They show even after 10 delicate washes no tangling in a drum washing machine and have a significantly reduced dent compared to untreated goods.

Example 9

A Wollgeorgetbe is treated with an aqueous liquor that

per liter contains 40 g of the aqueous dispersion of a copolymer described in Example 4 and 80 g of the emulsion described in Example 1 of a reaction product containing isocyanate groups and 0.4 g of zinc acetate. The fabric is squeezed off to about 80 fo wet pickup, and dried at 11O ⁰ C. Of the

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Wool georgette is on a winch with 2 g per liter of hydrogen peroxide (30 #ig) at 40 - 50 ⁰ C for 15 minutes and then dyed in the same bath.

The wool georgette treated according to the invention tends to the contrary on an untreated product, does not become matted even after a long curing time and has no tendency to callus formation during the staining process. The article treated according to the invention shows up against an untreated article Wool material in the dyeing process a remarkable saving of dye.

The inventively treated wool georgette has not felted -after 3 machine washes at 60 ⁰ C for one entry point of 0.8 in the warp direction and 0.6 $ io in the weft direction, and is. An untreated material shrinks after three machine washes at 6O ⁰ C for 16 $> in the warp and weft directions 8 $ and matted.

Example 10

A Wollcloque was treated with the liquor from Example 9, then at 110 ⁰ C getrockne
steam of 102 - treated 103 ⁰ C.

then dried at 110 ⁰ C and 2 minutes with water

The fabric treated in this way is not matted and is facing untreated fabric significantly less shrinkage.

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Example 11

A woolen fabric is treated with an aqueous liquor containing 40 g of a 40 i ° strength aqueous dispersion of a copolymer of 60 parts of butyl acrylate, 30 parts of styrene and 10 parts of acrylamide and 80 g of the aqueous dispersion of isocyanate groups described in Example 1 in the liter Implementation product contains.

The aqueous liquor were also per liter

a) 0.3 g zinc acetate or

b) 0.3 g of tin octoate or

c) 0.3 g of triethylenediamine
added.

The tin octoate was in the form of a 5 itigen solution in ethyl acetate used and the solution emulsified in the liquor with the aid of a commercially available paraffin sulfonate.

Sections of the woolen fabric were removed immediately and after 4 hours of standing the approaches treated with the aqueous liquors ..

The woolen fabric was squeezed off to about 90 * i liquor pick-up and 15 minutes at 110 ⁰ C dried. This was followed by steaming with water vapor of approx. 102 ^° C. for 2 minutes. The treated portions of the wool fabric were then subjected to a machine wash at 60 ⁰ C.

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yes, shrinkage of the woolen fabric;

Treatment immediately after manufacture of the liquors

"" Chain "Schiii a) '''' ■ '- 0.4 ^r ^' - ^: Ö _S 3 treatment after 4 hours of standing

Shot

chain
0.5

3.9
4 '»6

0.4

3.8 5.8

Matting of the 'f

Treatment immediately naeti making the brisk

a) not matted

b) not matted

c) slightly matted

Treatment after standing for 4 hours "

not matted
heavily matted
heavily matted

Fleet stability

immediately after manufacture

a) flawless

b) e flawless

c) flawless

after 4 hours of standing

perfect'

Skin formation and sediment Skin formation and sediment

The handle of the treated woolen fabric is pleasant and non-sticky in all cases. However, only the zinc acetate BAD ORIGINAL proves catalyst hinsieThrfclich a longer usability of the aqueous liquors _s as .lotwendig in textile finishing. · "Suitable.

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Claims (3)

Claims J »* f 1. Process for the finishing of textile materials, characterized in that the textile materials are treated with an aqueous liquor containing polymers or copolymers produced from vinyl or divinyl monomers and reaction products containing isocyanate groups, which are composed of at least two active hydrogen atoms with a molecular weight of 500-10,000 and / or at least two active waters. Organopolysiloxanes bearing rstoffatome with molecular weights up to 25,000 and polyisocyanates are produced, as well as 0.1 - _; 10 g per liter of water-soluble salts of metals from subgroups I, II or VIII of the Periodic Table of the Elements with lower mono- or polycarboxylic acids and optionally 0.5-5 g per liter of surface-active substances, and then, optionally after drying, a post-treatment with steam 100-110 ⁰ C or with water at 10 ⁰ C 3QO performs wherein optionally conventional, the reaction of isocyanate groups with active hydrogen atoms containing compounds accelerating catalysts can be added. 2. A method for finishing 7on textile materials according to claim 1, characterized in that the aqueous liquor isocyanate groups \ possessing reaction products which are composed of at least two active hydrogen atoms containing organopolysiloxanes with a molecular weight of up to 25,000 of the general formula \ V ¹ Vn ·. ^18410262 - '»■ -. 809834/1513 New documents (Art. 7, Paragraph 1, Paragraph 2, No. I, Sate 3 of the Ämterungsgea. Of 4 September 1967) AS wherein η is greater than 1 and at most equal to 3 and the substituents R are chosen so that at least two of the Siloxane units according to the formulas X-Y Y-X-Y correspond and in all other siloxane units R = R ', where m is 1 or 2, R' is an optionally indifferently substituted, saturated or unsaturated aliphatic, cycloaliphatic or aromatic hydrocarbon radical, X is an aliphatic or araliphatic bi- or trivalent radical, which is optionally an ether, thioether, ester or amino grouping. and Y is a hydroxyl, sulfhydryl, carboxyl, carbonamide or secondary amino group and polyisocyanates are prepared contains. ' 3. Textile materials, which according to the method of claims 1 and 2 have been refined. Le A 10 262 - 2.5 - 909834/1513