JPH02293473A - Treating agent for synthetic fiber - Google Patents

Abstract

PURPOSE:To obtain the subject treating agent giving multifilament having excellent converging ability with oiling to synthetic fiber in spinning or drawing process containing esterified matter of alkylene oxide adduct of specific amine and polycarboxylic acid. CONSTITUTION:2-100mol alkylene oxide, e.g. 2-4C alkylene oxide is added to amine having two or more active hydrogen, preferably 1-30C monoalkylamine and resultant adduct and polycarboxylic acid, preferably dicarboxylic acid containing >=20 total carbon number (suitable example: dimer acid obtained by dimerization of unsaturated aliphatic carboxylic acid such as linoleic acid) are esterified to obtain a treating agent for synthetic fiber making possible to rationalize manufacturing process of synthetic fiber. Said treating oil is applied to synthetic fiber in an amount of about 0.03-2g per 100g fiber in spinning or drawing process of synthetic fiber and dripping of scum and wearing of reed are reduced, then converging property is exhibited and woven fabric of high quality level is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a fiber treatment agent composition, particularly to a treatment agent for obtaining highly convergent multifilaments.

Conventional technology Conventionally, in order to improve weavability, synthetic fibers for textiles are generally twisted or sized in the weaving preparation process to impart a high degree of cohesiveness to the warp threads and prevent the occurrence of fuzz. Met. However, the problems with these methods are that in the case of twisted yarn, productivity decreases due to slow twisting speed, or that weaving efficiency and fabric quality decrease due to the generation of twisted yarn fuzz, and in the case of glued yarn, it may cause problems during weaving. The problems include reduced workability due to de-sizing and the like, and furthermore, it is uneconomical because it requires steps such as drying and de-sizing.

In order to address the above-mentioned problem, and in particular to streamline the process, many methods have been proposed in which the following components are applied as a sizing agent to the multifilament in the spinning or drawing process. Initial condensates of melamine or urea derivatives, polyethylene emulsions or ethylene/vinyl acetate copolymers, polyalkylene glycols or derivatives thereof, polyoxyethylene addition polyamides, polyolefin and acrylic ester copolymers, polybutene, polyvinyl alcohol,
Polybutadiene and methacrylic acid copolymer, polyether urethane/urea block copolymer, polyvinyl alcohol fatty acid ester, polyalkylene glycol and wax or fatty acid, condensate of polyalkylene glycol and rosin or polybasic acid, aliphatic polyester etc.

In addition, those added in the stretching process include phthalic anhydride, maleic anhydride, or maleic acid, polyethylene glycol (MW4 0 0 0), stearic acid, or I;
Well-known examples include dimethyl terephthalate, tere-7-tar acid derivatives, acrylic acid and maleic acid copolymers, and acrylate copolymers and waxy substances. However, when these sizing agent components are applied during the spinning or drawing process, the undrawn tension of the undrawn yarn or drawn yarn increases, and the spinning efficiency is significantly reduced due to increased frictional force in the drawing process, scum generation, etc. Furthermore, there are drawbacks such as insufficient sizing effect due to insufficient spreadability of the sizing agent during stretching, and satisfactory results have not been obtained.

Therefore, today, in place of the method of applying a sizing agent, a method of imparting sizing properties by entangling the single filaments within the yarn by air injection, so-called interlacing, is often adopted. However, the multifilament that imparts convergence by interlacing has a disadvantage of poor fabric quality and hand, and it is not possible to obtain high-quality fabrics. In recent years, not only spinning and drawing processes but also subsequent processes have become faster and faster in order to improve productivity, but since interlacing only partially entangles single yarns, processing As the speed increases, there is a lack of cohesiveness, and to compensate for this, forcing interlaces to increase the number of interlaces causes various problems, such as not only causing fuzz and poor yarn quality, but also increasing costs. .

Especially in recent years, the spinning method has shifted from separate drawing (spinning and drawing) to direct drawing (spin draw) and high-speed spinning, and the spinning speed is increasing more and more. At present, it is not possible to apply interlacing to the extent that it provides convergence.

Problems to be Solved by the Invention It is an object of the present invention to streamline the process by omitting the twisting and gluing processes in the conventional weaving preparation process, and to improve work efficiency and fabric quality in high-speed weaving.

More specifically, by imparting a high degree of cohesiveness and metal abrasion resistance to multifilament synthetic fibers such as polyamide and polyester, we can improve work efficiency in high-order processing processes, especially in weaving preparation processes or manufacturing processes. It is an object of the present invention to provide a synthetic fiber treatment agent suitable for significantly improving fabric quality and obtaining fabrics with good quality.

Means for Solving the Problems The present invention relates to a synthetic fiber treating agent containing as a main component an ester of an alkylene oxide adduct of an amine having two or more active hydrogens and a polycarboxylic acid.

In the present invention, the amine having two or more active hydrogen atoms is a primary alkylamine, preferably having 1 to 3 carbon atoms.
Saturated or unsaturated alkylamines which may have 0 side chains, such as lower amines such as methylamine, ethylamine, n-propylamine, isopropylamine, intermediate amines such as 2-ethylhexylamine and octylamine;
Higher amines such as laurylamine, oleinoleamine, stearinoleamine, etc.; Aralkylamines such as benzylamine; Alicyclic amines such as cyclohexylamine; Aromatic amines such as aniline, natylamine; Polyamines such as ethylenediamine, propylene diamine , hexylene diamine, diethylene triamine, or those whose amino groups are partially modified, such as those esterified or amidated with carboxylic acid, etc.
Various examples include those urethanized with polyisocyanate. Particularly preferred are saturated or unsaturated primary aliphatic amines having 12 to 22 carbon atoms.

The amine having two or more active hydrogens as described above is reacted with alkylene oxide to form a hydroxy compound having two or more hydroxyl groups in the molecule.

The alkylene oxide is an alkylene oxide having 2 to 4 carbon atoms, preferably ethylene oxide, propylene oxide, or a random or block polymer of both. Preferred is ethylene oxide. The number of moles added to alkylene oxide is 1 to 50 moles per active hydrogen, more preferably 1 to 2 moles.
It is 0. The number of moles of ethylene oxide added varies depending on the number of carbon atoms in the hydrocarbon group of the amine, and is 1 to 3 for lower amines.
For higher amines such as fi and stearylamine, 2 to 10 pieces is particularly suitable.

A portion of the polyamine may be partially modified with acid chloride, carboxylic acid, or the like. For example, a portion of the amine groups of ethylenediamine may be modified to stearylamide or the like, or it may be in the form of a secondary amine in which both amino groups are alkylated. Alternatively, it may be an amine having an ether bond obtained by reacting alcohol or the like with ethyleneimine.

Examples of alkylene oxide adducts of amines which are particularly suitable for obtaining the ester compounds of the invention include alkyl alkylene amines such as isoprobinolediethanolamine or its ethylene oxide adduct, laurylamine's ethylene oxide adduct, stearylamine. Examples include ethylene oxide adducts.

In obtaining the ester compound of the present invention, the polycarboxylic acid used is an aliphatic polycarboxylic acid, such as maleic acid,
Alkylene polycarboxylic acids such as fumaric acid, suberic acid, azelaic acid, sebacic acid, dodecamethylene dicarboxylic acid, and tatedecamethylene dicarboxylic acid; alkenyl succinic acids such as octenyl succinic acid, dodecenyl succinic acid, and octadecenyl succinic acid; linoleic acid Examples include dimer acids obtained by dimerizing unsaturated aliphatic carboxylic acids such as.

Further examples include aromatic polycarboxylic acids such as heptatalic acid, isophthalic acid, terephthalic acid, and trimellitic acid.

Preferably, it is a dicarboxylic acid having 20 or more carbon atoms, particularly a dimer acid obtained by dimerizing an unsaturated aliphatic carboxylic acid such as linoleic acid.

An ester of an alkylene oxide adduct of an amine having two or more active hydrogens and a polycarboxylic acid has a degree of polymerization of 1 to 50, obtained by reacting 1 to 2 equivalents of the latter to 1 equivalent of the former.
, preferably 1 to 20 esters. The preferred molecular weight is 1000 to 100000, especially! 000~5000
It is 0.

The terminal carboxyl group of the ester of the present invention may be unneutralized or neutralized. Suitable neutralizing agents include alkali metal hydroxides, ammonia, amines, alkanolamines, etc., with alkali metals being particularly preferred.

The ester compound of the present invention can be obtained by reacting an alkylene oxide adduct of an amine with a polycarboxylic acid by a conventional method in the presence or absence of a catalyst. Examples of the catalyst include caustic potash, caustic soda, and sodium methylate. The appropriate reaction temperature is 120 to 220°C,
It is preferable to carry out the reaction while dehydrating by continuous nitrogen purge.

In addition to the above-mentioned ester compounds, the synthetic fiber treatment agent of the present invention may contain known components such as synthetic esters, smoothing agent components such as mineral oil, and non-containing components such as polyoxyethylene alkyl ether and polyoxyethylene alkyl allyl ether. Antistatic agents such as ionic emulsifier components, alkali metal salts such as alkanesulfonates and alkyl phosphates, amine salts, alkylimidazoline activators, and betaine activators may be blended.

The synthetic fiber oil agent of the present invention preferably contains the above-mentioned ester compound in an amount of 1 to 80% by weight, more preferably 5 to 50% by weight.

When applying the synthetic fiber treatment agent of the present invention, it can be dissolved in an organic solvent or low-viscosity mineral oil, or as an aqueous emulsion solution by spinning, drawing, etc. by a known oiling method such as a roller oiling method, a nozzle method, a spraying method, or a dipping method. Applied during the warping process or warping process. The appropriate amount of the ester compound of the present invention attached to the fiber is 0.03 to 2 g per 100 g of fiber. In particular, it is preferably 0.05 to 0.5 g.

EXAMPLES The present invention will be described in detail below with reference to examples, but the present invention is not limited to the examples shown.

Synthetic fiber treatment agent No. 1 containing the compound (A.B.C.) according to the present invention shown in Example Table 1 and conventionally used known sizing agent components D, E, and F. 1" No. 8 and processing agent composition No. 9 that does not contain a sizing agent were attached at 1% to polyester filament 50d/24f (interlace 10/m) to improve the sizing property, which is an important characteristic related to weavability. Table 2 shows the results of comparing the scum shedding properties, reed wear, and unwinding tension.

Incidentally, scum falling off, reed wear, convergence, and unwinding tension were evaluated by the following methods.

(1) Scum falling off and reed wear 20 reed feathers pasted at regular intervals with a diameter of 10 cm and a width of 2 cm.
Using a rotating drum of
The yarn was run for 2 hours at a speed of 9/d and a yarn speed of 100 m/win, and the amount of scum generated on the reed part was visually determined. After the test was completed, the reed blades were removed and the wear marks were observed under a microscope.

(2) The test yarn of (1) above, which had been rubbed with a focusing reed, was passed through a fuzz counter, and the loose state of the multifilament was checked and expressed as the number of loops per IOOm.

The smaller the value, the fewer loops and better convergence.

(3) Unwinding tension test The yarn was wound into a paper tube with a tension of 30 g, 30°C x 8
After conditioning the humidity in an atmosphere of 0% RH for 3 days, the unwinding tension was measured at a yarn speed of 30 m/min.

(The following is a blank space) Table 2 Component A of the present invention: Polyester of dimer acid obtained by dimerizing linoleic acid and POE (2) stearyl amino ether (average molecular weight 10
．． 000) Invention component B:C. ．． Polyester of alkenylsuccinic anhydride and monomethyldiethanolamine (average molecular weight 8
．． 000) Polyester of dimer acid obtained by dimerizing linoleic acid and POE (3) lauryl amino ether (average molecular weight 3.0
00) Comparative component D: Polyethylene glycol (average molecular weight 2
,000)/acrylic acid block comparative component E: Rosin ester of polyoxyethylene/polyoxypropylene random copolymer (average molecular weight 1
5000) Comparative component F: Polybutene (average molecular weight 550) Invention component C: Effects of the invention The synthetic fiber treatment agent of the present invention has very little scum shedding and reed wear, and has excellent cohesiveness, especially for synthetic fibers. Suitable for Asahiri.

Patent applicant Matsumoto Yushi Pharmaceutical Co., Ltd.

Claims (1)

[Scope of Claims] A synthetic fiber treatment agent containing as a main component an ester of an alkylene oxide adduct of an amine having one or more active hydrogen atoms and a polycarboxylic acid. 2. The amine having two or more active hydrogen atoms has 1 to 3 carbon atoms.
The synthetic fiber treatment agent according to claim 1, which is a monoalkylamine of 0. 3. The synthetic fiber treatment agent according to claim 1, wherein the polycarboxylic acid is a dicarboxylic acid having a total carbon number of 20 or more. 4. The synthetic fiber treatment agent according to claim 1, wherein the alkylene oxide is an alkylene oxide having 2 to 4 carbon atoms, and the total number of moles added is 2 to 100. 5. The synthetic fiber treatment agent according to claim 1, wherein the ester is a polyester having a molecular weight of 1,000 to 100,000, obtained by reacting 1 to 2 equivalents of polycarboxylic acid to 1 equivalent of active hydrogen of an alkylene oxide adduct of an amine. .