DD160287A1 - WEAR-REDUCING PRAEPARATION FOR FAST-SPONGED PIGMENTED POLYESTER DISSOLVED FAIRS - Google Patents

Abstract

The invention relates to a wear-reducing effective preparation for fast-spun pigmented Polyesterendlosfaeden, which are touched during their processing of Fadenleitorganen. The aim of the invention is to avoid the abrasion on the Fadenleitorganen when Beruehren by the fast-spun and pigmented with titanium dioxide Faeden. The object of the invention is to provide for fast-spun and titanium dioxide-pigmented Polyesterendlosfaeden a wear-reducing acting preparation, which reduces the abrasion of the Fadenleitorganen in the further processing of the Faeden. According to the invention, the object is achieved in that the preparation contains a substituted amine oxide as nonionic surfactant in an amount of up to 5%, based on the total amount of preparation. The application d. Invention occurs in the further processing of Polyesterendlosfaeden after spinning, for example, in the stretch texturing process.

Description

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Title of the invention

Reducing wear.e Preparation for fast-spinning pigmented polyester endless filaments

Field of application of the invention

The invention relates to a wear-reducing preparation for fast-spun pigmented polyester endless filaments which are touched by thread guide elements during their further processing. «

Characteristic of the known technical solutions

For proper winding and processing of the spun threads, for example stripping, stretch texturing, etc., it is necessary to apply suitable spin finish to the threads. Such preparations usually represent combinations of lubricants, emulsifiers and wetting agents, antistatic agents and Hygroskopica, thread-locking agents and bactericides.

In order to favorably influence the adhesive slip properties, thermostable oils, for example mineral oils, synthetic oils, sterically hindered esters are added to the preparations. To achieve consistent emulsions and good

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Wetting on the threads are emulsifiers and wetting agents from the group of nonionic products, for example Äthyleno-Xidkondensationsprodukte used as antistatic agents are also incorporated into the ethylene oxide condensation or Phosphorsäureabkömmlinge. To support the antistatic effect, hygroscopic substances, for example polyalcohols, are added. As a thread-locking agent, various vinyl polymers have been proven ·

Thus, according to DE 2134854, the preparation comprises phosphoric acid esters, according to DE 2518124 phosphoric acid derivatives, according to DE 2654794 aqueous solutions of quaternary ammonium alkyl phosphates. Also in the patent application DO6M / 2O3889 a thermostable preparation was proposed for more than 3000 m / min spun polyester filaments, which is a mixture which in addition to a polyglycol ethoxylated higher aliphatic alcohol and di-iso-oktylphthalat an ethoxylated glycerol with 30 ethylene oxide units and a Alkylpolyglykolätherphosphat, which preferably contains potassium or the atomic group C ^ HqWH-, in the molecule.

However, the phosphorus-containing compounds proposed in these inventions have a major drawback that renders their use in further processing, for example, in the stretch texturing of high speed spun and titanium dioxide pigmented polyester filaments unsuitable. With TiO ₂ pigmented threads lead to the Fadenleitorganen the take-up and Recktexturierraaschinen abrasion phenomena, which are recognizable in the form of grinding and the like. This Abrasionserscheinungen are still favored by the phosphoric or Phosphonsäureestersalze contained in the proposed preparations, phosphates and the like. As anionic

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Tenaide act and affect the quality properties of the threads. For the operating personnel, this entails an increased control effort. To ensure good quality properties of the threads, the thread guide elements, which preferably consist of sintered corundum, sapphires and the like, must be renewed after a short time, that is to say before their normative service life is reached Material and labor is connected and leads to production interruptions.

Object of the invention

The object of the invention is to reduce the abrasion on the thread guide elements when they are touched by the rapidly-ganged and titanium dioxide-pigmented threads.

Explanation of the essence of the invention

The object of the invention is to provide a disintegration-reducing preparation for rapidly spun and titanium dioxide-pigmented polyester filaments which reduces the abrasion on the filament gate during further processing of the filaments.

According to the invention, this object is achieved in that the pigmented during production titanium dioxide yarns are subjected before their further processing with a wear-reducing preparation, in addition to known lubricants, emulsifiers, antistatic agents and other known additives to 5 % _t, preferably 2 % _t based on the Total amount of preparation contains a nonionic Tenaid in the form of a substituted amine oxide ο

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As representative of the substituted amine oxides, the following examples are given:

Dimethylalkylamine oxides of the general formula

CH ₃

R _ N® - Q ^Q (I)

GH ₃

wherein R represents a tetradecyl, hexadecyl, oleyl, stearylreate or a coconut fat derivative.

R _{1 is} -O- (CH ₂ -CH ₂ O) _x ^ -CH ₂ -CH ₂ -O-Ii ^w - 0 ^σ (II)

CH ₃

in which R _{1 is} an alkyl, alkylaryl or alkyl aminreat wherein the alkyl groups have 1 to 20 carbon atoms.

A group of compounds of the general formula

CH ₂ -CH ₂ OH R ₂ -S ^ - 0 ^Θ ' (III)

CH ₂ -CH ₂ OH

in which R _{2 is} a coconut oil or tallow derivative, an alkyl radical having 10 to 18 carbon atoms or a stearyl radical.

The substituted amine oxides proposed in accordance with the invention are present in amounts of from 5 %, preferably 2%, in the amount obtained from known lubricants, emulsifiers, antistatic agents and others.

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"Antistatic and bactericidal action in preparations is known in these compounds classes proposed according to the invention" New and surprising, however, are their properties of preventing the abrasion of thread guiding organs in those cases when the classes of compounds proposed according to the invention are up to 5 % a preparation are added * Such a preparation gives the threads wear-reducing properties even at thread processing speeds above 3000 m / min. These properties cause a reduction in the control effort of the operating personnel and. Furthermore, a reduction in the material and work involved in the renewal of the thread guide elements and ultimately the restriction of production interruptions.

embodiments

The invention will be explained in more detail below with reference to some exemplary embodiments,

Example 1s

On a high-speed spin line, the threads drawn off at more than 3000 m / min and pigmented with TiO _{2 are} subjected before their further processing to a wear-reducing preparation which comprises 40 % of a sliding component, 55 % of a nonionic emulsifier and 5 % of a dimethylstearylamine oxide. D of formula (I).

Example 2s

On a high-speed spinning machine, the yarns drawn off at more than 3000 m / min and pigmented with TiO _{2 are applied} to a stretch-texturing machine before being further processed.

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achiae subjected to a wear-reducing preparation, the 43 % of a sliding component, 55 io of a nonionic Eraulgatora and 2 % of a dimethyl-Alcyl-Polyätheralkoholamino.xids

of the formula (II).

Example 3:

At 3000 m / min withdrawn and pigmented with titanium dioxide threads are subjected before their further processing with a wear-reducing preparation, the 43 % of a sliding component, 55 % of a nonionic emulsifier and

2% of a compound of formula (III) having the following structure;

GH ₂ -CH ₂ OH

° 10 21 ^{iNI υ}

CH ₂ -CH ₂ OH

The evaluation of all examples is done visually by a stereomicroscope after a service life of the model thread guide rod made of steel of 8 hours. A grading from 1 to 5 is used to score the grinding depths, with the smallest changes being scored 1 and the highest scores 5. The stated service life of the model body corresponds to a minimum of half-yearly service life of a sapphire of the magnet spindle aggregates.

Claims (1)

-, 229641 7 Invented ungaanapruch An antiperspirant preparation for high speed spun and titanium dioxide pigmented polyester filaments consisting of lubricants, emulsifiers, antistatic agents and other known additives characterized by a content of substituted amine oxides as nonionic surfactant in an amount of up to 5 %, or 2% by weight, based on the total amount of preparation ,