DE2136676A1 - Dye acceptable textile fibers and process for their manufacture - Google Patents

Description

PATENTANWÄLTE 213667Ö

dr. W. Schalk - dipl.-ing. P.Wirth dipl.-ing. G. Dan ν en berg DR ₁ V-SCHMIED-KOXXZARZIK-DR-P-WeINHOLD DR.D.CUDEL

6 FRANKFURT AM MAIN

OR. ESOiCNIlElMER STHASSE 39

5K / SK O. 139? Montacatini Edison S.p.A.

Fora Buonaparte 31 ■. . Milan / Italy

Farbstoffarinahmefähige textile fibers and processes for their _r _ He rstellung "_____

The present invention relates to the manufacture of textile fibers as well as films, webs, shaped objects, etc. based on olefin polymers consisting essentially of isotactic macromolecules with a special ability to accept acidic, metallized and disperse dyes.

The present invention particularly relates to the manufacture of Dye-accepting textile fibers by extrusion of mixtures from Polyolefins, which essentially consist of isotactic macromolecules, and from special basic polyamides.

It is well known that the ability to accept dyes from manufactured objects, which are obtained from polyolefins consisting essentially of isotactic macromolecules, improve by the polymers mixed with condensation resins, which are characterized by the functional group -NHCQ-, before deformation. These resins are obtained by Polycondensation of higher amino acids by polycondensation of diamines with dicarboxylic acids

109886/18 58

ÖAD ORiGJNAL

Condensation of cyclic amides, such as ε-caprolactam (polyamides) or by reaction of diisocyanates with higher glycols (polyurethanes) and by reaction of diisocyanates with diamines (polyureas).

The color modification of polypropylene by adding basic polyamides, either by polycondensation of isocinchomeronic acid with diamines or by polycondensation of a Ν, Ν'-bis- (du-carboalkoxyalkyl) -piperazine obtained with a diamine has been described ..

The aim of the present invention is the production of fibers, films and webs and like manufactured molded articles based on polyolefins rr.it has a special ability to accept acidic, metallized and disperse dyes by means of other color modifiers in addition to their special activity also improved processability of mixtures based on polypropylene in various technological processes, improved resistance to light and heat and better dyeability of the received, manufactured objects.

Surprisingly, it has now been found that these goals can be achieved essentially by using blends of (1) 99-75 wt.% of a polyolefin of isotactic macromolecules and (2) 1-25% by weight of a basic one Copolyamids from the polycondensation of one or more polyamines of the general formula:

R-NH-A-NH-R ¹

in which R and R 'independently of one another represent hydrogen, an alkyl radical with 1-2Ü carbon atoms or a cycloalkyl or aryl radical with G-30 carbon atoms and A is a divalent aliphatic, cycloaliphatic, aromatic or heterocyclic radical means, in addition to carbon and

BATH ORIGINAL 109886/1858

- 3 - 213 ^ 676

Hydrogen nitrogen in the form of secondary or tertiary amine groups' or heteroatoms, such as D, S and P may contain, with at least two dicarboxylic acids or their derivatives, such as the esters, one of which has the following general formula:

HOOCfCH ^) - N

in which R and R ^{1 have} the meaning given above and η is an integer between 1 and 10, and vice versa the other acid has the general formula:

ROOC _Ί B - COOR ¹

has, in which R and R * have the meaning given above and B for a divalent aliphatic radical with 1-20 carbon atoms or a divalent cycloaliphatic or aromatic radical with 6-20 carbon atoms which contains nitrogen or heteroatoms such as 0, S and P can.

Another object of the present invention are the dyeable polymeric compositions of (1) 99-75 wt. -Rf, a polyolefin consisting essentially of isotactic macromolecules and (2) 1-25 wt. *) & A basic copolyamide of the type described above .

As polyamines with the above general formula R-NH-A-NH-R ¹ , ethylene diamine, trimethylene diamine, tetramethylene diamine, pentamethylene diamine, hexamethylene diamine, diethylene triamine, tetraethylene pentamine, etc., 1,4-diaminocyclohexane, p-phenylene diamine, etc., N, N ^l -Bis- (2-aminoethyl) -piperazine, / N- (2-aminoethyl) -piperazine, etc., N, N'-bis- (3-aminopropyl) -methylamine, etc. are used

v / earth.
/ * N ^

109886/1858

As dicarboxylic acids of the above general formula:

ROOC (CH ₂ ) _n -N- M ⁰¹ Vn ^C00R

can N ₁ N'-bis (2-carbamethoxyethyl) -piperazine, N ₁ N ¹ -bis- (3-carbomethoxyethyl) -trans-2,5-dimethylpiperazine, N, N'-bis- (3-carbomethoxypropyl) - piperazine etc. may be mentioned.

As dicarboxylic acids or their derivatives with the above general formula

ROOC - B - COOR ¹

can oxal, malon, amber, glutar, adipine, pimeline, suberine, azelaine, Sebacic acid, etc., isophthalic acid, terephthalic acid, etc., dicarboxylic acids of N-substituted piperidines, etc. can be used. When using Mixtures of two or more amines can have very wide mutual Proportions in the mix. The level of each amine can actually vary from 1-99 mole p / a based on the total amines.

Even when using mixtures of two or more dicarboxylic acids or their esters, these can be present in the mixture in very wide mutual proportions.

The content of each acid can vary from 1-99 mol- ^ ₁ based on the total acids.

The molar ratio between the total dicarboxylic acids used to ■ · the amine (or the mixture of two or more amines) is preferably at 1: 1; however, you can also use an excess of any of the reactants, preferably an excess of up to 30% total amines.

10 9886/1858

The basic copolyamides are made by treating the mixture of Polyamines and dicarboxylic acids or their esters at temperatures between 70-250 ° C. for a time between 15 minutes and 20 hours and optionally using vacuum until the volatile materials are thoroughly removed.

The polyolefins used according to the invention consist essentially of isotactic Macromolecules and are obtained by low pressure polymerisation with stereospecific catalysts.

Preferably the crystalline polyolefin is polypropylene, which is essentially consists of isotactic macromolecules and through stereoscopic polymerization obtained from propylene or crystalline propylene / ethylene- Copolymers in which propylene predominates.

The crystalline polyolefins made from monomers are also in accordance with the invention of the formula R "~ CH = CHp, in which R" represents an alkyl or aryl group or a hydrogen atom, suitable such as polyethylene, polypropylene, polybutene-1, poly-4-methylpentene, polystyrene, etc.

According to the invention, the basic nitrogen-containing polymer can be mixed with the olefin polymer can be mixed by simply mixing the two materials in powder form.

However, the additives can also be incorporated by other methods, such as e.g. by mixing the Oiefin polymer with a solution of the basic Copolyamide in a suitable solvent and subsequent evaporation of the solvent or by adding the basic copolyamide during or

10 9 8 8 6/1858

after olefin polymerization. According to the invention, polyamines and bicarboxylic acid can be used (or ester) can also be mixed directly with the polyolefin by adding allowing the reaction to take place during the heat treatments to which the polymer is subjected in the course of the granulation and spinning processes.

Mixtures are preferred to achieve the goals according to the invention from 98-90% by weight of a polyolefin consisting essentially of isotactic macromolecules and 2-10 p / o by weight of an above-mentioned basic copolyamide as Proven to be particularly useful.

. In the manufacture of filaments, the mixtures are granulated and then extruded by means of devices suitable for melt spinning, in the absence of oxygen, preferably in an atmosphere, a inert gas, such as nitrogen, works.

The polymers can also be rendered opaque during mixing ("opacifiers"), pigments, organic or inorganic dyes, Stabilizers, lubricants, dispersants, etc. are added will.

After spinning, the filaments are a stretching at Verstreckungs- 'ratios between 1: 2 and 1:20, and subjected to temperatures of 80-150 C. Verstreckungsvorrichtungen that heated by means of hot air or steam or other similar flowable materials or provided with a heating plate are; or they can be highly oriented after extrusion.

109886/1858

The filaments then preferably shrink freely ("free-to-shrink condition") or under controlled shrinkage conditions Dimensionally stabilized at temperatures of 80-160 C.

Spinning can be done in conventional spinnerets, in practice however, spinnerets with a diameter greater than 0.5 mm and a ratio from length to diameter over 1.1, preferably between 10 and 30, is used. The openings of the spinnerets can be annular or non-annular in cross section.

According to the invention, the dyeable masses can also be the core or the skin of a conjugated fiber or side by side with an unmodified one Polymer or another suitable polymer are stored.

The filaments according to the invention can be mono- or multifilament and are used in the production of continuous filaments or staple fibers, of bulk yarns or bulk staple fibers, of non-woven fibrous Structures such as spunbond or non-woven structures, etc. are used.

The mono- or multifilamentary filaments of the present invention can are expediently further treated with reagents which, if appropriate, the basic copolyarnides present in the filaments in the diluted, normally Acid solutions used in the staining process can render them completely insoluble.

Treatments with diepoxy compounds are particularly suitable for this purpose, Diisocyanates, dialdehydes, dihalogens, divinylbenzal, etc .; the Treatments can be made before. or after stretching.

109886/1858

In addition to the production of yarns, the compositions according to the invention can also used for making films, fabrics, molded articles, etc.

The fibers obtained according to the invention show a remarkable acceptability for dyes of the acidic and pre-metallized classes as well as one Ability to accept disperse dyes. The dyed fibers show good resistance, especially to light and heat.

Furthermore, the fibers and other manufactured articles can be in existence or absence of surfactants to improve their dyeability and color fastness to acid treatment will.

This method can be used to achieve a color modification not only the fibers obtained from olefin polymers, but also from fiber-like fibers Polymers of other types, such as acrylic polymers (e.g. polyacrylonitrile), Vinyl polymers (e.g. polyvinyl chloride), polyester, polyamide polymers, etc., use the fibers obtained.

The "dyeing procedures were carried out with boiling in dye baths for 1.5 hours 2.5 </ o dye (acidic, pre-metallized or disperse dye), based on on the fiber weight, corresponding to a fiber / dye bath ratio of 1:40.

The color processes with acidic and pre-metallized dyes were carried out in the presence of 1% by weight (based on the fiber) of a surface-active agent in the form of the condensation product of ethylene oxide with an alkylphenol or the sodium salt of N-ole-N-methyltaurine. To improve the dyebath depletion, 2 ″ Yes (based on the fiber weight) of an acetic acid solution were added 30 minutes after the start of boiling.

.... ,, ^ ;, 109886/1 858

The staining with disperse dyes was carried out in the presence of 2 "/> surfactant and 3 ° j _a Arnmohiumacetat, based on the fiber weight.

After staining, the fibers were rinsed in running water; They have a high ability to accept acidic and pre-metallized dyes and disperse dyes.

The color fastness to light, and washing as well as the abrasion resistance is extremely satisfying.

The following examples illustrate the present invention without limiting it,
example 1
127.6 g (1.1 moles) hexamethylenediamine
67.0 g (0.5 mol) of dimethyl adipate and

129 g (0.5 mol) of N, N'-bis (2-carbomethoxyäthyl) piperazine were dissolved in a nitrogen atmosphere for 2 hours at 175 ^D C, 1 hour at 200 ° C. and finally heated ^{to 230 °} C. under vacuum for 2 hours.

The basic polyamide obtained in this way is a light yellow solid with a ^{mp of 17B-185 D} C, a rebtive viscosity of 2.4 (measured in a 1% solution in HpSO ₄ at 95.2%) and a total nitrogen content of 15.5% (calculated content: 15.6%).

50 g of the polyamide obtained in this way were mixed with 950 g of polypropylene (melt index = 19.5; ash content = 0 _s 007 ^c / a; residue from the extraction with Hepban = 97.2 ^c / o). The mixture was ^{extruded at 220 0} G ₀ and the granulate was converted into fibers under the following conditions:

10 9 8 8 8/1858

Auger screw temperature .235 C.

Extrusion head temperature '■ 240 C.

Spinneret temperature 245 ° C.

Spinneret with 60 holes with a diameter of 0.8 mm and a length of van 16 mm

maximum pressure. 50 kg / cm

Winding speed 400 m / min

Stretching

Temperature 130 ⁰ C.

Environment water vapor atmosphere

Draw ratio 1: 5

The drawn fibers showed good acceptability for the following

Dyes:

Red for wool B (C.I. acid rad 115)

Alizarin Blue SE (C.I. acid blue 43)

Lanasyn Red 2GL (CI. Acid red 216)

Lanasyn Brown 3 RL (CI. Acid brown 30).

The dyed fibers showed good resistance to light, washing and abrasion.

Example 2

127.6 g (1.1 mol) hexamethylenediamine,

53.2 g (0.3 mol) of dimethyl adipate and

180.6 g (0.7 mol) of N, N ^I ~ bis- (2-carbomethoxyäthyl) -piperaziri were in a nitrogen atmosphere for 2 hours at 175 ^a C, 2 hours at 200 C and ⁿ waitere 2 hours under vacuum at 230 G, heated.

40 cj of the so as a light yellow solid with a F. of 170-175 G ,, a roller

fciveh viscosity (as measured above) of 2.2 and some gESS-.iten nitrogen

contains basic polyamide half yjon 16.5 fa (calculated content = 16.7 ^ J / was »with StU g polypropylene

lex = 19.5; Grayling content = 0.007 ') ύ; Backlash from our extraction with, heptane = 97.2 fa) mixed. . The mixture * Urcia at 2LUE ⁿ u ^ a'.i to gepreßc and daae pellets obtained under ueen following Dsding-jryen _ir; Fasai'n converted:

1098 86/185 8 _1AD original

2135676

, spiders

Screw temperature. 230 C.

Extrusion head temperature 235 C.

Spinneret temperature 240 C.

Spinneret with 60 holes with a diameter of 0.8 mm and a length of 16 mm

maximum pressure '50 kg / cm

Winding speed 400 m / min

Stretching

Temperature 130 G.

Environment water vapor atmosphere

sphere

Draw ratio 1: 5

The drawn fibers showed good acceptability for the in Example 1 mentioned dyes. The dyed fibers showed good resistance to light and washing as well as good abrasion resistance.

Example 3

121.6 g (1.05 Hol) hexamethylenediamine,

115 g (0.5 mol) of dimethyl sebacate and

129 g (0.5 Hol) N, N ^t-bis (2-carbomethoxyäthyl) piperazine were dissolved in a nitrogen atmosphere for 2 hours to 175 ° C., 1 hour at 200 ⁰ C. and then under vacuum for 2 hours at 230 ^D C. heated.

50 g of the as a light yellow solid with a F. of 180-187 C, a relative viscosity (as measured above) of 2.0 and a total nitrogen content of 14.1 ^e / a (calculated content = 14.2 %) The basic polyamide obtained was mixed with 950 g of polypropylene (melt index = 19.5; ash content - 0.007%; residue from extraction with heptane = 97.2%). The mixture was extruded at 220 ° C. and the granules obtained were converted into fibers under the following conditions:

109886/1858

Spin

Screw screw temperature '235 C.

Extrusion head temperature 235 ° C.

Spinneret temperature 240 C.

Spinneret with GO holes with a diameter of 0.8 mm and a length of 16 mm

maximum pressure * 50 kg / cm

Winding speed ■ 400 m / min

Stretching

Temperature 130 ⁰ C.

Environment water vapor atmosphere

Draw ratio _t 1: 5

The drawn fibers showed good acceptance for those in Example 1 mentioned dyes. The dyed fibers showed good resistance to light and washing and only good abrasion resistance.

B β is ρ ie 1 4

121.8 grams (1.05 moles) of hexamethylenediamine
97 g (0.5 mol) of dimethyl terephthalate and 129 g (0j5 mol) of N, N'-bis (2 - carbornethoxyäthyl) piperazine were dissolved in a nitrogen atmosphere for 2 hours to 1B5 C. _r 2 hours at 200 ° C. and under vacuum for 3 hours at 230 ° C. heated.

50 g of the obtained as a light yellow solid with a melting point of 205-212 ° C., a relative viscosity (as measured above) of 1.8, and a total nitrogen content of 15.1 "yes (calculated content = 15.1 " p) basic polyamides were mixed with 950 g of polypropylene (shrinkage index = 19.5; ash content = 0.007 </ o; residue from extraction with heptane = 97.2 #>). The mixture was extruded at 220 ° C. and the granulate obtained under the converted into fibers under the following conditions:

10 9 8 8 6/1858 * AD ORIGINAL

Spin

Worm screw temperature ι 235 G,

Extruded cap temperature 235 ⁰ C.

Spinneret temperature 245 C.

Spinneret with 60 holes with a diameter of 0.8 mm and a length of 16 mm

maximum pressure 50 kg / cm

Winding speed 400 m / min

Exudes e ckung

Temperature 130 ° C.

Environment water vapor atmosphere

Draw ratio 1ί 5

The drawn fibers showed good acceptance of the dyes mentioned in Example 1. The dyed fibers showed good resistance to light and washing and good abrasion resistance. Example 5

94.6 g (1.1 moles) piperazine

87j0 g (0.5 mol) of dimethyl adipate and

129 g (0.5 mol) of N, N ^I -bis- (2-carbomethoxyethyl) piperazine were in a nitrogen atmosphere for 2 hours at 180 ° C. and 1 hour at 200 ° C. and finally at 230 ° C. under vacuum for 2 hours. heated.

50 g of the as a light yellow solid with a F. of 195-201 C, a relative viscosity (as measured above) of 1.9 and a total nitrogen content of Ί 6 ^l / g (calculated content = 17.6 ° / o ) obtained basic polyamides were mixed with 950 g of polypropylene (melt index = 19.5j ash content = 0.007 ^L yes \ residue from the extraction with heptane = 97.2 ^ρ / ό). The mixture was at 22 ° C. extruded and the resulting granulate converted into fibers under the following conditions:

1098 86/185 8

. Spin

Auger screw temperature '240 C.

Extrusion head temperature 240 ° C.

Spinneret temperature 245 ° C.

Spinneret with 60 holes with a diameter of 0.8 mm and a length of 16 mm

maximum pressure 50 kg / cm

Winding speed. 400 m / min

Stretching

Temperature. 130 ° C.

Environment water vapor atmosphere

Draw ratio. 1: S.

The drawn fibers showed good acceptance for the dyes mentioned in Example 1. The dyed fibers showed good resistance to light and washing and good abrasion resistance. Example 6

63.8 g (0.55 mol) of hexamethylenediamine,

64.5 g (0.5 mol) of N- (2-aminoethyl) piperazine,

87.0 g [0.5 mol) dimethyl adipate and

129 g (0.5 mol) of N, N'-bis (2-carboromethoxyethyl) piperazine were heated to 180 ° C. for 2 hours in a nitrogen atmosphere. 1 hour on 200 ° C. and then under vacuum for 2 hours at 23 ° C. heated.

40 g of the basic polyamide obtained as a light yellow solid with a melting point of 162-170 ° C., a relative viscosity (as measured above) of 1.5 and a total nitrogen content of 17.7 ° p (calculated content = 17.8%) were mixed with 960 g of polypropylene (melt index = 19.5; ash content = 0.007 _{%; residue from extraction with heptane = 97 t} 2 ^). The mixture was extruded at 220 C. and the granulate was converted into fibers under the following conditions:

109886/1888

Spin

Worm screw temperature 240 ⁰ C.

Extrusion head temperature 240 C.

Spinneret temperature. 24S C.

Spinneret having 60 holes with a diameter of ₁ mm O B and a length of 16 mm

maximum pressure 50 kg / cm

Winding speed 400 m / min

Stretching

Temperature. 130 O.

Environment water vapor atmosphere

Draw ratio _f 1: 5

The drawn fibers showed good acceptance of the dyes mentioned in Example 1. The dyed fibers showed good resistance to light and washing and good abrasion resistance. Example 7

63.8 g (0.55 mol) of hexamethylenediamine,
100 g (0.5 mol) of NjN'-bis-fS-aminopropylJ-piperazine, 87.0 g (0.5 mol) of dimethyl adipate and

129 g (0.5 mole) N, N ^! -Bis- (2-carbomethoxyethyl) piperazine were heated to 180 ° C. for 2 hours and 200 ° C. for 1 hour in a nitrogen atmosphere. and finally at 230 ° C. under vacuum for 2 hours. heated.

40 g of this as a light yellow solid with a melting point of 165-175 C _1, a relative viscosity (as measured above) of 1.6 and a total nitrogen content of 1B.0 % (calculated content = 18.1 ^c / o obtained) basic polyamide were mixed with 960 g of polypropylene (melt index = 19.5; mixed residue from the extraction with heptane = 97.2 ° / _0); ash content = 0.007 ^D />. The mixture obtained in this way was extruded at 220 ° C. and the granules obtained were converted into fibers under the following conditions:

109886/1858 BAD

• ^ spin

Auger screw temperature ', 240 C.

Extrusion head temperature 240 ° C.

Spinneret temperature, 245 C.

Spinneret with 60 holes with a diameter of 0.8 mm and a length of 16 mm

maximum pressure _v 50 kg / cm

Winding speed 400 m / min

Stretching

Temperature 130 ° C.

Environment water vapor atmosphere

Draw ratio 1; 5

The drawn fibers showed good acceptance for those in Example 1 mentioned dyes. The dyed fibers showed good resistance to light and washing and good abrasion resistance.

Example 8_

127.6 g (1.1 mol) hexamethylenediamine,
87.0 g (0.5 mol) of dimethyl adipate and

143 g (0-5 moles) of N, N'-bis (3-carbomethoxypropyl) piperazine were in a nitrogen atmosphere for 2 hours at 175 C, 1 hour on 200 ° C. and finally at 230 ° C. under vacuum for 2 hours. heated.

50 g of the so. Light yellow solid with a F. of 175-182 C, a relative Viscosity (as measured above) of 2.1 and a total nitrogen obtained basic polyamide

content of 14.8% /> (calculated content = 14.9%) / were with 950 g of polypropylene (melt index = 19.5; ash content = 0.007 ° / ₀ ; residue from extraction with heptane = 97.2 ^D / 0 ) mixed. The mixture was at 22D ° C. extruded and the resulting granules converted into fibers under the following conditions:

109886/185 8

Spin

Screw screw temperature '235 C.

5 extrusion head temperature 235 C.

Spinneret temperature 245 C.

Spinneret with 60 holes with a diameter of 0.8 mm and a length of 16 mm

maximum pressure 50 kg / cm

Winding speed 400 m / min '

Stretching

Temperature. 130 C.

Environment water vapor atmosphere

Draw ratio 1: 5

The drawn fibers showed good acceptance for those in Example 1 named FarbsLoffe. The dyed fibers showed good durability against light and washing and good abrasion resistance.

SAO

Claims (1)

Claims 1.— Textile fibers, films, fabrics and similar shaped articles on the Based on olefin polymers consisting essentially of isotactic macromolecules with high acceptance for acidic, metallized and disperse dyes, consisting of (1) 99 to 75% by weight of one consisting essentially of optical macromolecules existing polyolefins and (2) 1 to 25 weight percent of a basic copolyamide from the polycondensation of one or more polyamines of the general formula: R-NH-A-NH-R in which R and R ¹ independently represent hydrogen, an alkyl radical with 1-20 carbon atoms or a cycloalkyl or aryl radical with 6-30 carbon atoms and A denotes a divalent aliphatic, cycloaliphatic, aromatic or heterocyclic radical which, in addition to carbon and Hydrogen, nitrogen in the form of secondary or tertiary amine groups or heteroatoms, such as 0, S and P, with at least two dicarboxylic acids or their derivatives, such as, for example, Esters, one of which has the general formula: R-OOCfCH ₀ ) -N N- (CH ₀ ) COOR * * ■ d. ' η> _v f * d. η has, in which R and R ^{1 have} the above meaning and η stands for an integer between 1 and 10, and the other acid has the following formula: ROOC - B - COOR ¹ has, in which R and R ^{1 have} the above meaning and B stands for a divalent aliphatic radical with 1-20 carbon atoms or a divalent cycloaliphatic or aromatic radical with 6-20 carbon atoms, the nitrogen or heteroatoms, such as O ₉ S and P, may contain BATH ORIGINAL 2. Textile fibers, films, fabrics and similar shaped articles according to claim 1, characterized in that two or more polyamines of the above type are used in a ratio of each amine to the total amount of the polyamines between 1 to 99 mol-p / i. 3. Textile fibers, films, fabrics and similar shaped articles according to claims 1 and 2, characterized in that the ratio of each dicarboxylic acid to the total acids is between 1 and 99 mol J / o. 4. - Textile fibers, films, fabrics and similar shaped articles Claim 1 to 3, characterized in that the molar ratio is between total dicarboxylic acids and polyamine or polyamine mixture 1: 1 amounts to. 5.- Textile fibers, films, fabrics and similar shaped articles Claim 1 to 3, characterized in that all of the polyamines in an excess of 30% based on the total dicarboxylic acids present are. 6, - Textile fibers, films, fabrics and similar shaped objects according to Claims 1 to 5, characterized in that the polyolefin is a polypropylene consisting essentially of isotactic macromolecules from the steriospecific polymerization of propylene or crystalline Propylene / ethylene copolymers with a predominant propylene content used. 7.- Process for the production of textile fibers according to claim 1 to 6 by extrusion of the molten mass, subsequent stretching and thermal dimensional stabilization of the fibers thus obtained, characterized in that the extruded polyolefin mixtures essentially consist of isotactic macromolecules with 1-25 Gevj .- ^ / a of a basic 109886/1858 Copalyamids, obtained by polycondensation of one or more polyamines the general formula: R-NH-A-NH-R ¹ in v / elcher R and R 'independently of one another represent hydrogen, an alkyl radical with 1-20 carbon atoms or a cycloalkyl or aryl radical with 6-30 Carbon atoms and A is a divalent aliphatic, cycloaliphatic, aromatic or heterocyclic radical means which, in addition to carbon and hydrogen, nitrogen in the form of secondary or tertiary Amine groups or heteroatoms, such as 0, S, and P, may contain, with at least two dicarboxylic acids or their derivatives, such as esters, one of which has the general formula: ROOC (CH ₂ ) _n -N N- (CH ₂ ) COOR ¹ has, in which R and R ^{1 have} the above meaning and η is an integer with a value between 1 and 10, and the other acid has the following general formula: ROOC - B - COOH has, in which R and R ^{1 have} the above meaning and B stands for a divalent aliphatic radical with 1-20 carbon atoms or a divalent cycloaliphatic or aromatic radical with 6-20 carbon atoms, the nitrogen or heteroatoms, such as 0, S and P ₁ may contain. B.- The method according to claim 7, characterized in that the mixture has a content of the above-mentioned basic copolyamide between 2-10 ⁰ ^. 109886/1858 9.- The method according to claim 7 and B, characterized in that one- as a poly olefin a polypropylene consisting essentially of isotactic macromolecules, obtained by stereospecific polymerization of propylene, or crystalline propylene / ethylene copolymers with a predominant propylene content used. .10, - Method according to claim 7 to 9, characterized in that the fibers before or after stretching with diepoxy compounds, diisocyanates, di-aldehydes, Dihalogens or divinylbenzene · are treated. 11.- The method according to claim 7 to 10, characterized in that the Fibers or the objects made from them are subjected to an acid treatment will. 12.- Dyeable polymer masses with a high ability to accept acidic, .metallized or disperse dyes, consisting of: (1) 99-75 wt. P / o of one consisting essentially of isotactic macromolecules Polyolefins, preferably polypropylene, and (2) 1-25 p / o by weight of a basic copolyamide obtained by polycondensation one or more polyamines of the general formula: R - NH - A - NH - R ¹ in which R and R ¹ independently represent hydrogen, an alkyl radical with 1-20 carbon atoms or a cycloalkyl or aryl radical with 6-30 carbon atoms and A denotes a divalent aliphatic, cycloaliphatic, aromatic or heterocyclic radical which, in addition to carbon and hydrogen Nitrogen in the form of secondary or tertiary amine groups or heteroatoms, such as Ö, S and P _t , with at least two dicarboxylic acids or their derivatives, such as esters, one of which has the following general formula: 109888/1858 ROOC (CH ₂ ) _n -N N- (cri ₂ ) _n C00R in which R and R 'have the above meaning and η for an integer has a value between 1 and 10, and the other acid is as follows general formula has: ROOC - B - COOR ¹ in which R and R ^{1 have} the above meaning and B stands for a divalent aliphatic radical with 1-20 carbon atoms or a divalent cycloaliphatic or aromatic radical with 6-20 carbon atoms, which contains r nitrogen or heteroatoms such as 0, S and P ₁ can. The patent attorney: 109886/1858