DE1070588B - Process for making fibers and fabrics made of cellulose crease-resistant - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

KL 8k 1/20

INTERNAT. KL. D 06 Π1>

PATENT OFFICE

EXPLAINING EDITORIAL 1070 588

B 40839 IVc / 8k

REGISTRATION DATE: JUNE 28, 1956

NOTICE THE REGISTRATION AND ISSUE OF THE EDITORIAL: DECEMBER 10, 1959

It is known to fabricate natural or regenerated cellulose with the aid of methylol compounds of urea, melamine or their derivatives or polybasic with oxymethyl compounds of diamides to refine organic acids, urines, urethanes or ketones. Tn presence of sour reacting compounds or of compounds that are only in the heat or in the presence of the methylol compounds react acidic, the methylol compounds are preferably at a higher temperature implemented in and on the fibers. The methylol compounds mentioned can also be used use leading raw materials such as urea and formaldehyde. Leave that way produce especially anti-crease, embossing, carpentry and chintz equipment.

It is also known to use polyamide fabrics with N-alkoxyalkyl derivatives to treat polyamides in order to give them an increased water absorption capacity. These finishing agents are water-insoluble, high-molecular substances that are created with the help of emulsifiers must be applied in dispersed form to the tissue to be treated. Also N-methylol compounds of polyamides have already been proposed for the finishing of fiber materials made of polyamides been. Here, too, the aim is to give the polyamide fabric an increased water absorption capacity to rent. It is necessary to react with a water-insoluble polyamide To make formaldehyde water-soluble, and to convert it again into the insoluble state on the fiber. Although the methylol compounds of the polyamides used are water-soluble, they can not penetrate well into a textile fiber because of their high molecular weight.

Finally, it is known to fabricate synthetic linear polyamides by treatment with aqueous Refine solutions of ε-caprolactam. This method is used in particular for the production of Ripple effects. By treating with the watery Captrolactam is the monomers and contained in the polyamide fiber after spinning Relatively low molecular weight fractions removed from the fiber. This results in a matting of the fabric tied together.

■ It has now been found that fibers and fabrics made of natural or regenerated cellulose or Mixed fabrics made from this can be made particularly wash-resistant, crease-proof, if they are mixed with N-oxymethyl compounds of lactam and with crosslinking compounds in the presence of curing catalysts treats, wholly or partially dries, if necessary embosses and finally on warmed up higher temperatures.

Process for making fibers and fabrics made of cellulose crease-resistant

Applicant:

Aniline & Soda Factory in Baden

Corporation,

Ludwigshafen / Rhine

Dr. Wilhelm Rumens, Dr. Josef Stadler, Kurt bothck

and Dr. Heinz Pohlmarin, Ludwigshafen / Rhine,

have been named as inventors

Particularly suitable N-oxymethyl compounds of

Lactams are those of lactams with over 4 carbon atoms, preferably N-oxymethyl caprolactam and N-oxymethylcapryllactam. In addition, the corresponding dilactams are also suitable, z. B. methylene-bis-caprolactam. Suitable cross-linking

acting compounds are z. B. non-resin-forming compounds that have one or more reactive A contain hydrogen atoms and preferably react with the hydroxyl groups of the cellulose, e.g. B. Ethylenimine compounds of urea and its

Derivatives or of melamine and its homologues as well as compounds, the ethyleneimine during the Ability to split off crinkling process on the fiber. Furthermore, compounds are suitable that are listed under Addition of hydrogen have a crosslinking effect, -in particular-

special aliphatic or aromatic "isocyanates or their bisulfite compounds, e.g. ethylene diisocyanate, Hexamethylene diisocyanate, 1,4-phenylene diisocyanate, Chlorophenylene diisocyanate or tolylene diisocyanate. Furthermore, the N-oxymethyl-

Use derivatives of the following compounds: From 4,5-dihydroxyimidazolidone, 2,2'-dioxyhexahydro- (imidazolo-4 ', 5': 4,5-imidazole), dicarbamic acid esters of diols, especially butanediol, "tetrahydroimidazolidone, aliphatic or aromatic

üicarbonsäurediamiden, z. B. Succinic acid diamides, Adipic acid, isophthalic acid or terephthalic acid.

Curing catalysts which can be used in a known manner are acids, acidic compounds, in particular

909 688/391

acid salts, or potential acid donors, i.e. compounds, which react acidic only in the warmth or in the presence of oxymethyl groups. In addition, all known textile auxiliaries can be used, for example softening, Finishing and waterproofing agents, as well as substances that improve the abrasion resistance of the fabric, in particular Silicic acid esters, e.g. B. Orthosilicic acid acetate or orthocyclic acid dodecyl ester.

The fabrics to be finished can be bleached and l) z \ v. or be colored. They are particularly advantageous used tissue made of natural cellulose pretreated with alkaline, for example mercerized or causticized or boiled with triethanolamine. Also ZeIlwollgcwcbc are expedient before the proposed refinement with triethanolamine or a mixture Treated from caustic soda and potassium hydroxide from about 4 to 5 ° Bc.

You get a not only boiling water resistant, but also against the action of acids such. B. anti-crease effect resistant to "/ ίο-hydrochloric acid. This is due to the use of urea or Melamine resins cannot be achieved to the same extent

example 1

A mercerized and dyed cotton fabric is impregnated with a liquor containing 60 g per liter N-oxymethyl-f-caprolactam, 80 g of N, N'-dioxymethyl-4,5-dihydroxyimidazolidone, 6 g of the bisulfite compound of hexamethylene diisocyanal and 4 g of monoammonium phosphate contains. After squeezing down to a residual moisture of 85%, the fabric becomes dried at 90 ° C and then heated to 140 ° C for 5 minutes.

The fabric treated in this way is extremely crease-resistant.

Tabel

Crease angle, measured according to DIN 53 890 unwashed

chain Shot

after five washes of each 15 minutes with 5 g / l soap

and 2 g / l soda, calc. Chain shot

Untreated fabric
Treated according to example 1

46

128 52
134

Example 2

48
122

Example 3

52
130

50 g of N-oxymethyl-cü-capryllactam, 60 g of N-N'-dioxymethyladipic acid diamide, 30 g of orthosilicic acid dodecylcstcr and 20 g of zinc nitrate are in 860 g Dissolved in water. A caustic cotton fabric is impregnated with this liquor. You squeeze, dry and finally heated to 150 ° C for 5 minutes.

The fabric treated in this way has excellent crease resistance, which is not possible with boiled washes is affected.

A viscose wool fabric boiled with triethanolamine and printed is impregnated with a liquor which 60 g of N-oxymethyl-e-caprolactam, 40 g of oxymethyltetrahydroimidazolidone per liter, Contains 60 g of N, N'-dioxymethylbutanediol diurethane and 5 g of ammonium nitrate. You squeeze down to 80% residual moisture off, dries at 90 ° C and finally heated to 145 ° C for 5 minutes.

Tabel Crease angle, measured according to DIN 53 89Ö

after being washed five times

unwashed with 5 g / l soap and 2 g / l soda,

calc, for 15 minutes each warp I weft warp I weft

Untreated fabric
Treated according to example 3

46 138 57
146

52
140

59
146

Example 4

A cotton fabric is impregnated with a liquor containing 50 g of N-oxymethyl-e-caprolactam per liter, 60 g of NjNT-DioxymcthvM ^ -dihydroxyimidazolidone, 40 g of Ν, Ν'-dioxymethylbutanediol urethane and contains 5 g of monoammonium phosphate. You squeeze to a residual moisture of 90%, dries at 80 ° C, so that the fabric has a rcstfcuchtigkcit of 10%, if necessary calendered and then corrugated at 180 to 200 ° C on the Schrcincrkalandcr and finally warms for 5 minutes at 145 ° C. A kodiwash-proof is obtained Schrcincrcffckt.

is treated with a liquor containing 40 g of N-oxymethyl-co-capryllactam, 40 g of N, N'-dioxymethyl-4,5-di'hydroxyimidazolidone, 40 g of N, N'-dioxymethylbutanediol diurethane, 4 g of the 20% strength solution of a copolymer of 50 parts of acrylamide and 50 parts of methacrylamide, 5 g of polyethylene oxide with a molecular weight of 5000 and 6 g of diammonium phosphate contains. Then the fabric is squeezed off up to 90% residual moisture on the padder, dried at 80 ° C and heated to 140 ° C for 5 minutes.

The fabric treated in this way is a little fuller and, above all, extremely crease-resistant. The crease resistance remains completely intact even after a hot wash.

Example 5 Example 6

A cotton fabric treated with caustic soda, a mixed fabric made of cotton and rayon in the

that can be bleached, colored or even printed, 70 ratio 1: 1, that cooked with triethanolamine

was, is impregnated with a liquor containing 50 g of N-methylol-co-capryllactam, 60 g of the oxymethyl compound per liter of 2,2'-Dioxyhexahydro- (imidazolo-4,5 ': 4,5-imidazole), 40 g of N, N'-dioxymethyladipic acid diamide, Contains 30 g of orthosilicic acid onyl ester and 20 g of zinc chloride. After squeezing the fabric is dried at 80 ° C and then heated to 145 ° C for 4 minutes. It has a nice handle and is extremely crease-resistant. These properties are not lost during washing.

Example 7

60 g of N-oxymethylbutyrolactam, 80 g of N-N'-dioxymethyl-4,5-dihydroxyimidazolidone, 5 g polyacrylamide, 10 g polyethylene oxide and 5 g monoammonium phosphate are dissolved in 840 g of water. This liquor is used to make a cotton fabric on the foulard impregnated, then squeezed off, dried and heated to 145 ° C for 5 minutes.

The fabric treated in this way is extremely crease-resistant. The effect is not lost by hot washing.

Example 8

A bleached and printed cellulose fabric treated with potassium hydroxide solution 10 ° Be is coated with a Impregnated liquor containing 60 g of N-oxymethylönanthlactam per liter, 75 g Ν, Ν'-dioxymethylbutanediol diurethane, 60 g of a paraffin emulsion containing zirconium acetate, Contains 3 g of polyvinyl alcohol and 1 g of ammonium chloride. You squeeze down to about 90% residual moisture off, dries at 90 ° C and heated to 150 ° C for minutes.

The crease-proof effect imparted to the fabric is not impaired by hot laundry.

Claims (1)

Claim: Method for making fibers and fabrics made of cellulose crease-proof, characterized in that, that the fibers or fabrics with N-oxymethyl compounds of lactams and with treated crosslinking compounds in the presence of curing catalysts, then completely or partially dries, if necessary embosses and finally for a short time on higher Temperatures heated. Considered publications:
German Patent No. 874 896;
British Patent No. 734,791;
U.S. Patent No. 2,734,004. © 909 68S / 391 12.5 »