CS260758B1 - Spinning preparation for polypropylene and polyamide fibres' winding,stretching,texturing and final treatment - Google Patents

Abstract

Polypropylene spinning preparation new and polyamide fibers that improve winding, cutting, shaping and other textiles treatment in the form of an aqueous dispersion 1 % to 25 wt. active substance which is technical an olein product with 10 to 30 moles of ethylene oxide.

Description

The invention relates to a softening composition for winding, drawing, forming and finishing, in particular continuous filaments of polypropylene and polyamide fibers with a single fineness of 1 to 30 dtex. discs or nozzles in the form of an aqueous dispersion containing from 1 to 25% by weight of the active ingredient in a spinning process under spinning nozzles before winding the fiber onto coils in a discontinuous process for producing polypropylene and polyamide fibers, or in a continuous process for producing polypropylene and polyamide fibers with the preparation goes directly to the cutting or shaping machine.

This spinning preparation is also a β-reparation for processing into the final product in further textile processing such as knitting, weaving, carding, stretching, spinning, spindle-free dicing, tearing, needling, cutting, tufting for carpeting - and others.

The production of synthetic fibers from the melt requires the use of suitable preparation agents, the use of which is necessary in the production process itself as well as in the subsequent processing in the textile industry. For this purpose, the spinning preparations! for synthetic fibers, it stops on the affinity to the fiber, which prevents the migration of the preparation when winding several kilograms of undiluted fiber coils, prevents the preparation water dispersion from spinning out of the fiber when it is formed by ¹ sub-fibering nozzles. cans to the backsheets, thereby causing uneven distribution of the steaming in the layers, and hence in the final product, resulting in poor processability in textile operations. The stop is also put on the cohesive properties of the preparation, which are a prerequisite for the construction of the unreinforced fiber coils during its production, as well as the final fiber reels intended for further textile processing. Doriaz is also placed on the stability and uniformity of the aqueous dispersion, which ensures uniform application of the preparation to the fiber. The stop is also put on the thermostability of the preparation, on the biodegradability, on the antistatic properties, on the friction properties in the fiber / fiber-o, fiber / metal system, fiber / sintercorundum and in the other solid surface where the fiber spawns in textile processing on various textile machines.

A preparation according to US Pat. AO 207 066, which is used for a synthetic fiber as a one-component preparation in the form of an aqueous dispersion containing 1 to 20 wt. of ethoxylated castor oil. This does not guarantee good ductility of the synthetic fibers as it has a relatively high friction in the fiber / rigid system.

A fabric softening composition according to AO 178 544 is also known, which is a mixture of -alkyloamides saturated -a ^. unsaturated fatty acids, ethoxylated, a mixture of saturated and unsaturated fatty acids, a hydrocarbon fraction of alkylbenzene. This exhibits a lack of coherence but insufficient coherence. PropertiesMore known. ΑΘ 168 941, 168 194, 185 368, all of which contain a variety of silicone oils, which are: poorly biodegradable and, hence, ecolagiologically unsatisfactory, which is still being approached.

Also known are polyglycol addition prodrugs according to U.S. Pat. US 1,852,612 'preferred · for pesteres: Podfa: pat! CH 538 554 is recommended for synthetic fibers, the preparation of which consists of the aminosophosphate of alpha-sulfofatty acid ester, according to DE: DE. No. 2 447 41.0 for the preparation of staple fibers, a suitable amino acid fatty acid condensation product, es. pat. 151 973 for staple fiber spinning proposes a preparation based on an alkanoaminoalkylphenol-polyethylene glycol phosphate, a sulphonated-vegetable oil and a condensation oil of an aliphatic fatty acid product.

Preparations for polyacrylic fibers are also known, as reported by Deutche Textiltechnik 21 (1971) Heft 5 S. 318 by Scher, R., Friedel, H., Textilhilfsmittel aus der DDR Products, where the basis for the preparation in the VEB Fettchemie k-omer products is oxethylated fatty acids with different degrees of · oxethylation- and various lengths of the alkyl chain-α.

Also known are commercially products which are at a very high technical level but optimally frictional properties are sought; achieved by the addition of silicone components, which has a negative impact not only on the economy and on the ecology, but at the same time, these additions reduce the coherence. properties, what, · has significant / influence, n-a. construction, winding, in particular unreinforced / fiber in the process of producing fiber with impact. for workability.

These drawbacks are overcome by a spinning preparation according to the invention which is applied to n- and polypropylene- and polyamide fibers from an aqueous dispersion containing 1 to 25% by weight. active ingredient, which is a conventional technical product of olein with 10 to 30 moles of ethylene oxide, prepared by catalyzed addition of ethylene oxide to the olein.

The s-a spinning preparation is applied under the spinning nozzles when winding the unreinforced fiber or placing the unreinforced fiber into the watering can as a pouring, shaping and final preparation. The effect of this preparation substantially improves the uniformity of the construction of the unstretched fiber and the cohesiveness of the fiber ribbon, and hence the entire processability in other technological nodes of the production process, which is reflected in the quality of the final fiber product.

The spinning preparation guarantees good processing properties in textile opa, such as knitting, weaving, carding, stretching, spinning, open-end spinning, tearing, cutting, needling, shearing, carpet tufting and Come. The fibrous material produced using this spinning preparation exhibits good friction properties in the fiber / metal, fiber / sintercorundum system, fiber / molding body and other mechanical-physical and dynamic properties.

These properties are achieved when a fiberising composition is applied to the fiber material so that the active ingredient content is 0.3 to 2.2% by weight. on the thread.

The following examples show the characteristics of surface treatments by means of a spinning preparation for polypropylene and polyamide fibers in the form of aqueous dispersions. according to the present invention, the processability in the manufacturing process and comparing these properties with the properties and processability of the surface treatments achieved by other preparations.

The windings of the unstretched fiber are evaluated according to the following standard:

1st stage - flawless winding without overflow fibrils, resp. bundle the fibers through the winding face. Straight face winding (not deformed).

2nd degree - small overflows 0.5 - hem over the winding faces. Forehead straight without deformation.

3rd degree - overflows 1 - 3 cm across the winding faces, but not individual fibrils. Face straight with little or no deformation.

4th stage —- overflows 3-5 cm without winding face. One forehead without knocked out individual fibrils. Faces with major deformation, or without deformation.

5th stage - overflows 5 - 8 cm without winding face. One forehead without knocked out individual fibrils. Faces with larger deformations, resp. without distortion.

6th grade - 5 - 10 cm overflows with individual fibrils or whole fiber bundles. Faces with or without major deformation. The overflows over both the individual fibrils and the entire fiber bundles.

EXAMPLE

In the manufacture of a hot air-shaped polyamide cable, a unit fineness of 19 dtex and a total fineness of 4000 dtex, a 25% aqueous dispersion of the technical polyoxyethylene olein product with 30 moles of ethylene oxide prepared by the addition of ethylene oxide to olein at 150-160 degrees Celsius was used; pressure of 0.2 to 0.3 MPa, using granulated KOH as a catalyst.

The cable prepared with this preparation (Preparation No. 1) showed good operational reliability of winding, stretching - forming, twisting and tufting, good values of softening, shrinkage, good friction and cohesive properties and other mechanical-physical properties.

By way of comparison, in the production of the same cable, a mixed preparation (Preparation No. 2) based on triglycerides of higher fatty acids with oxethylated alkylamides was used and the following results were obtained;

. no. 1 prepar. no. 2

Content on fiber in% w / w 2.0 2.1 Precipitation in% 15.0 13.0 Evaluation of windings of unstretched fiber according to standard laž 2 2 to 3 Coefficient of friction (f _m ) fiber / metal 0.26 0.29 Coefficient of friction (f _c ) fiber / sintercorundum 0.25 0.27 Congestion of unstretched ribbon ribbon in% 93 82 Qualitative evaluation of the final fiber from the drop: 1st grade in% 94.0 90.0 2nd grade in% 6.0 10.0

26.0758

Example 1 a d 2

In the production of an endless polypropylene cable formed by a tumbling air having a unit fineness of 27 dtex and calco, a fineness of 1,330 dtex, a 5 / aqueous dispersion of the technical polyoxyethylene olein product with 10 moles of ethylene oxide prepared by addition of ethylene oxide to olein was used. 150-160 ^and C at 0.2 to 0.3 MPa, using granulated KOH as the catalyst.

The cable prepanated with this preparation (Preparation No. 3) exhibited good operational reliability of winding, scouring - fabrication, skins and textile processing, good densities, shrinkage, good friction and cohesive properties and other mechanical - physical properties.

For comparison, in the production of the same endless polyester káhhika, a mixed preparation [Preparation no. (4) on the composition of:

wt. % of ethylene oxide adduct of ricin oil, wt. parts of dimethyl-silicone oil and the following results were obtained:

preparations. no. 3 preparations. no. The content of the preparation on the fiber in% by weight. 0.7 Oj7 Softening in ^c / o 20.5 16.0 Shrinkage in% 4.5 4.5 Evaluation of windings of unstretched fiber according to the standard 1 to 2 3 to 4 Coefficient of friction (f, ') fiber / metal 0.30 0.30 Coefficient of friction (f, .j fiber / sine corundum 0.27 0.29 Congestion of unstretched ribbon ribbon in% 90 74 Qualitative evaluation of the final fiber after twisting: 1st grade in '% 90.0 86.0 2nd grade in% 8.0 12) 0

Example 3

In the production of a continuous twist of polypropylene silk twisted, with a fineness of 84/25 dtex, a 15% aqueous dispersion of the technical polyoxyethylene olein product with 20 moles of ethylene oxide prepared by the addition of ethylene oxide nia olein at a temperature of 150 to 160 ° C and a pressure of 0.2 up to 0.3 MPa, using granulated KOH as a catalyst.

Polypropylene silk prepared by this preparation (Preparation No. 5) showed good operational reliability of winding, forming, twisting, knitting, good friction properties and other mechanical-physical properties.

By way of comparison, a mixed preparation (Preparation No. 6) was used in the production of the same polypropylene silk, which is a commercial product of Henkol under the designation LW-850, which is a mixture of ester oils, emulsifiers based on ethylene oxides and silicone oil. The following results were achieved:

200758

IQ

preparations. no. 5 preparations. no. 6 Content of preparation on fiber in% by weight 1.2 1.2 Evaluation of windings of undrawn fiber according to standard. 1 to 2 2 to 4 Coefficient of friction (f _m ) fiber / metal 0.34 0.38 Coefficient of friction (f _c j fiber no / sinter corundum 0.32 0.35 Coefficient of friction (f,) fiber / forming spindle 0.28 0.31 Cohesiveness of ribbed, unshaped silk ribbon in% 83 70 Qualitative evaluation of the final fiber: 1st grade in% 93.0 88.0 2nd grade in% 7.0 12.0

PRSDMST

Spinning preparation for winding, drawing, shaping and final processing of polypropylene and polyamide fibers in the form of an aqueous dispersion containing 1 to 25

Claims (1)

weight percent The active ingredient is a technical polyoxyethylene olein product with 10 to 30 moles of ethylene oxide.