DE1254288B - Process for improving properties of textile threads - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

C08J 7 / OO

Int Cl DOIf

German class 29 b -3/65

Number 1254 288

File number M 55588IV c / 29 b

Filing date January 29, 1963

Opened on: November 16, 1967

The invention relates to a method of improvement the properties of textile thread obtained by pressing mixtures of crystalline polyolefins and basic compounds as color modifiers with or without other substances that act as stabilizers, solid dispersants, optical fillers, paints and the like act, can be obtained.

The color work of textile fibers is already known from olefin polymers by adding basic color modifiers to them (French patent 1257 522 and its first and second additional patent 80 259 and 82 026) textile fibers made from such mixtures on the basis of synthetic polymers and basic color modifiers are obtained, show the Advantage of good ink absorption, but on the other hand have the disadvantage that those with the Olefin polymers mixed basic compounds are water soluble. The color modifiers show also the tendency to come out of the fibers and thus a greasiness of the objects made from them to effect

The object of the invention is to address the deficiencies outlined in the case of textile fibers made from mixtures based on synthetic polymers and basic color modifiers turn off and also the color absorption, the color fastness and the "Handle" such textile fibers that contain basic epichlorohydrin polycondensates as color modifiers to enhance

It has now been found that the properties of textile thread which have been obtained by pressing mixtures of at least 75% polymers or copolymers of -olefins and up to 25% basic nitrogen compounds are improved by the fact that the thread is improved Veipi'essen with the aqueous solution of a metal salt of hydrochloric acid, sulfuric acid, nitric acid or acetic acid, in which the metal belongs to group I, II, IU, IV, VII and VIII of the periodic table, at temperatures between room temperature and emei temperature 10 ⁰ C below the Softening point of the polymer or copolymer treated for a period of between a few seconds and 24 hours

The treatment according to the invention results in the leaching out and discharge of the polymer Avoid added basic substances

The salts can be in the form of solutions or Dispersions in water, in an organic solvent or used in the anhydrous state. The treatment can be used before or after drawing of the fibers

Process for improving properties
of textile thread

Applicant

MONTECATINI Societä Generale per

rindustna Mmeraria e Chimica, Milan (Italy)

representative

Dr -Ing A. ν Kreisler, Dr.-Ing K. Schonwald,

Dr.-Ing Th Meyer and Dr J F Fues,

Patent attorneys, Cologne 1, Deichmannhaus

Named as the inventor

Alberto Bonvicmi,

Ennio Udos, Milan (Italy)

Claimed priority

Italy of February 2, 1962 (2114)

It has been found to be applicable to Particularly suitable salts for the process according to the invention are copper sulfate, ferrous sulfate, aluminum sulfate, Cei sulfate, stannous chloride, manganese chloride, mercury chloride, Titanium Trichloride, Zinc Chloride, Fern Chloride, Cobalt Nitrate, Lead Nitrate, Thonum Trat, Cadmium Acetate, Nickel sulfate, magnesium sulfate, calcium chloride, bismuth nitrate and beryllium chloride

The insolubilization of the basic nitrogen compounds, mixed with the base polymer can lead to the formation of inorganic derivatives be returned by nitrogen polycondensates

The textile fibers which can be subjected to the treatment according to the invention consist essentially of at least 75 ° / ₀ of a crystalline polyolefin, preferably a crystalline PoIyft-olefin, in particular by stereospecific polymerization of propylene obtained polypropylene, namely essentially of isotactic macromolecules and 1 up to 25% of a color modifier. The color modifiers used for the production of stainable textile fibers can be amines or imines of the polyalkylenimine type or nitrogen polycondensates obtained by reacting epichlorohydrin with one or more amines or with diglycidyl denatures in the presence or absence of condensing agents and alkylating agents, in particular polycondensates of the following type ahphatic amine- Epichlorohydrin diamine, aliphatic amine epichlorohydrin inun,

700 688/400

Diamine-epichlorohydrin alkyl halide, aliphatic Amin-Epichlorhydrm-bissek Diamine, Epichlorhydrin-Halogendenvat-bissek Diamm, preferably used polycondensates are those produced by reaction of epichlorohydrin with piperazine and n-octadecylamm or n-dodecylammine

The mixtures of polymers and basic compound are granulated and then in one Melt splinters pressed, with the spinnerets preferably a length to diameter ratio Above 1 Granulating and spinning can be done in the absence of oxygen and preferably be carried out under an inert gas (nitrogen)

The spinning of the mixtures can expediently be carried out in the presence of a small amount of a "solid dispersant", which facilitates the homogeneous dispersion of the basic nitrogen polycondensate in the molten polymer mass, such as is preferably from the group of cetyl and stearyl alcohol, stearic acid, benzoin, Furom, vinyl stearate, mono-, di- and inorganic acid esters of glycerine, monoethanolamine stearate, stearamide, N-diathanollauramide, C ₆ to C ₃₀ aliphatic amines, condensation products of ethylene oxide with amines of phenol, polysteramide, polyacrylic acid, polystyrene and styrene copolymers, polystyrene and styrene copolymers . selected

During the mixing, in addition to the nitrogen polycondensates nor stabilizers, optical fillers and organic or inorganic pigments added to the polyolefin

The fibers are stretched after spinning with ratios between about 1 2, and 1 10 at temperatures of 80 ⁰ C b.is 150 m Streckemrichtungen, the nut hot air, steam or the like are heated by means of a hot plate or

Then you can see the yarn to a treatment for Dimensionsstabiksierung under free shrinkage conditions or hindered at 80 to 16O ⁰ C subdue

The threads obtained by pressing the mixtures used according to the invention can Mono- or plunfile and for the production of continuous yarns or staple fibers or for the production of bulky yarns and / or bulky staple fibers be used

That of the aforementioned treatment according to the invention Fibers subjected to metal salts show a remarkable ability to absorb acidic, metallized and disperse dyes, they also have a good affinity for basic and vat dyes, better gnff properties and let yourself special, real coloring

In addition, these fibers show better stability against exposure to light

The control color tests were carried out for v / _t hours at the boiling point in baths which contained 2 ¹ I ₂ ⁰ I _{0 of} the weight of the fiber in dye with a ratio of fiber to bath = 1 40

The colors with acidic and metallized dyes was in the presence of 3% ammonium acetate (calculated on fiber weight) and 1% one surface-active agent, consisting of the condensation product of ethylene oxide with a Alkylphenol

After 30 minutes since the start of boiling, 2% (based on the fiber weight) of a 20% acetic acid solution added to improve bath exhaustion

The fibers were colored with flowing Rinsed with water and show intense staining with acidic, metallized and disperse dyes. The color fastness to light, washing and rubbing is very satisfactory. The process according to the invention Can be used with advantage- also to improve the color properties and color fastness of synthetic ones Fibers of various types, such as ζ Β fibers made from polyamides, polyesters, acrylic polymers and mixed polymers, vinyl polymers and copolymers, be used in a mixture with basic nitrogen compounds.

Examples 1 to 4 '^

As can be seen in detail from the following table is, different yarns made by prepressing blends of polypropylene and basic nitrogen polycondensates have been obtained, according to the invention with aqueous salt solutions treated-and, then with the following seeds), metallized, and dispersed dyes colored; u

a) acidic dyes

Ahzarin yellow '2 G (CI Mordant yellpw I)
Wollrot B (CI acid red 115) ';

Alizann red S (CI morclant red 3)
Ahzarmblau SE (C 1 acid blue 43)
Acid black JVS (CI acid black 1)

b) metallized dyes

Lanasyn yellow GLN. (C I. acid yellow 112)
Lanasynrot 2 GL (C I. acid red 216)
Lanasyn brown 3 RL (CI acid brown 30)

c) disperse dyes

Setacylgelb 3 G (C ¹ I disperse yellow 20)
Cibacet scarlet BR '(CI disperse red 18)
Brillantsetacylblau BG <CI disperse blue 3)

The treated fibers were found to be good can be colored and the dyeings are very fast own

example 1 Example 2 Example 3 Example 4 composition a) polypropylene 950 g 950 g 955 g 950 g Limiting viscosity [η], determined in tetra hydronaphy tap at 135 ° C 1.52 1.52 1.48 1.48 Ash content (%) 0.015 0.015 0.012 0.012 Backlog after Heptane extraction (%) 97.2 97.2 96.3 96.3

(Continuation of the table above)

example 1 Example 2 Example 3 Example 4 b) basic nitrogen polycondensate, he hold out 1.3 moles of epichlor 1.3 moles of epichlor 1.3 moles of epichlor 1.3 moles of epichlor hydrin and 0.3 mole hydrin and 0.32 moles hydnn and 0.3 mol hydnn and 0.31 moles Octadecylamine Octadecylamine Dodecylamine Dodecylamine and 1 mole and 0.98 moles and 1 mole and 0.99 moles Piperazine Piperazine Piperazine Piperazine Treatment with 0.5% aq 0.5% aqueous l% aqueous 0.5% aqueous Zinc chloride solution Remote chloride solution Cadmium acetate Zmkchloridlosung solution duration 10 mins 12 minutes 12 minutes 10 mins temperature 90 ° C 90 ° C 90 ° C 90 ° C Coloring and colourfast means with a) acidic dyes Well Well Well Well b) metallized paint fabrics Well Well Well Well c) dispersion fats Well Well Well Well

Claims (1)

Claim Process for improving the properties of textiles by pressing mixtures of at least 75% polymers or copolymers of α-olefins and up to 25% basic nitrogen compounds have been obtained, characterized in that the thread after pressing nut the aqueous solution of a metal salt of hydrochloric acid, sulfuric acid, nitric acid or acetic acid, in which the metal of groups I, II, III, IV, VII and VIII of the periodic table at temperatures between room temperature and a temperature 10 ⁰ C below the softening point of the polymer or copolymers for a Treated duration between a few seconds and 24 hours 700 688/400 11 67 © Buadesdruckecei Berlin