JPH0247372A - Textile treatment agent - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a fiber treatment agent, particularly a treatment agent for synthetic fibers suitable for drawing and false twisting.

Conventional technology In order to streamline the manufacturing process of synthetic fibers by improving productivity, the method of simultaneously performing drawing and false twisting, that is, the POY-DTY method, has become mainstream, and in recent years -
As the speed of processing increases, the types of fibers that can be processed are also becoming more diverse.

However, in order to produce synthetic fiber sublime yarn using this method, since the undrawn yarn is stretched and heat-set at high temperature at the same time as the false twisting stage, a phenomenon of cohesion between single yarns occurs, and the obtained sublime yarn is Yarns have the disadvantage that untwisted portions tend to remain, which is particularly noticeable in polyester fibers.

Japanese Patent Publication No. 55-9097 proposes a method for reducing the untwisted portion of polyester sublime yarn.

In this method, a polyether with a molecular weight of 2.5 oo or more, which is added to an alcohol having at least one hydroxyl group in a ratio of 55 mol% or more of propylene oxide and 45 mol% or less of ethylene oxide, and a kinematic viscosity at 25°C are used. It is characterized by using 0.5 to 10% by weight of a linear organic polysiloxane having a centistoke of 1O or more.

However, the effect of such a treatment agent on preventing untwisting decreases as the heating setting temperature during false twisting increases, and therefore the effect disappears as the processing speed of large yarns is sublimely processed or the drawing/false twisting process increases.

Problems to be Solved by the Invention The present invention solves the problems of local adhesion between single fibers during drawing and false twisting during the production of sublime yarns of synthetic fibers, and the residual untwisted portions caused by this phenomenon. The purpose is to

Means for Solving the Problems The present invention provides a fiber treatment agent containing the following components (a) to (d):
(a) An average molecular weight of 1,000 obtained by reacting a polyhydric hydroxy compound having at least two hydroxyl groups in the molecule with ethylene oxide and propylene oxide such that the ethylene oxide/propylene oxide ratio (weight) is to/90 to 50150. ~6.000% by weight of a copolymer of ethylene oxide and propylene oxide and/or a blocked copolymer in which at least one of the terminal hydroxyl groups of the copolymer is capped with a hydrocarbon group,
(b) Formula [I]: [In the formula, R1 is a hydrocarbon group having 4 to 18 carbon atoms, R2 is a hydrocarbon group having 6 to 12 carbon atoms, X is a (poly)oxyalkylene residue, and n is 1 to 20] esters l
O ~ 40% by weight, (c) Formula [■]: In formula 1, R1 is a hydrocarbon group having 8 to 26 carbon atoms, and X' is (
poly)oxyalkylene residue, m is a number from 1 to 20, M is an alkali metal, alkanolamine or amine, X is 1 to 2, y is 2 to 1 and 2 is O-1) (
+y+Z=3] 0.5 to 10% by weight of a phosphoric acid ester, and (d) 0.01 to 5% by weight of polyether-modified silicone.
I will provide a.

The ethylene oxide/propylene oxide copolymer (hereinafter referred to as EO/PO copolymer) used in component (a) of the present invention may be either a block copolymer or a random copolymer, but is preferably a block copolymer. The weight ratio of ethylene oxide < EO) to propylene oxide (po) is preferably in the range of 10/90 to 50,150.

The ratio of EO to Po depends on the types of other components (b) and (c) used, the size of the hydrocarbon group when a blocking copolymer is used together, or the EO/Po ratio in the blocking copolymer.
Although it varies depending on the PO ratio, even if the EO content in the EO/PO copolymer is less than 10% by weight or exceeds 50% by weight, untwisted portions of the sublime yarn tend to remain.

The average molecular weight of the EO/PO copolymer is 1.000-6,
000, more preferably 1.500 to 5.000. E O/P O copolymers contain at least 2
It is obtained by reacting a polyhydric hydroxy compound having 2 hydroxyl groups with ethylene oxide and propylene oxide. Examples of polyhydric hydroxy compounds include ethylene glycol, propylene gellicol, glycerin, sorbitol, pentaerythritol, and polyglycerin.

In this specification, the polyhydric hydroxy compound refers to those mentioned above, and does not include esters derived from polyhydric hydroxy compounds such as monoglyceride and sorbitan monoalkylate. Furthermore, polyethylene glycol and polypropylene glycol are treated as derivatives of polyhydric hydroxy compounds such as ethylene glycol and propylene gellicol.

Similarly, instead of E O/P O copolymer or: h
In addition, a compound in which one or both of the terminal hydroxyl groups of an E O/P O copolymer is blocked with a hydrocarbon group (herein referred to as a blocked copolymer) may also be used. The blocked copolymer can be obtained by reacting a hydrocarbon group having a hydroxyl group with EO and PO, or by further introducing a hydrocarbon group thereto by an appropriate method. In general,
It is sufficient that one of the terminal hydroxyl groups has a hydrocarbon group. Bisphenol A as an alcohol component that becomes a hydrocarbon group
using a diol component such as EO and PO at both ends.
It may also be a reaction product.

Examples of the hydrocarbon group include aliphatic hydrocarbon groups which may have a side chain having 1 to 22 carbon atoms or an unsaturated group, such as methyl, 2-ethylhexyl, lauryl, cetyl, stearyl, oleyl, etc.; aromatic; Examples include hydrocarbon groups such as butylphenyl, octylphenyl, nonylphenyl, etc., but preferably a saturated aliphatic group having 12 to 18 carbon atoms.

The E O/P O residues of the blocking copolymer have an EO/PO ratio of 10/90 to 50 by weight, similar to the EO/PO copolymer.
150 is preferred, and the molecular weight is 1.00 in the EO/PO portion.
A molecular weight of 0 to 6.000 is suitable, and a molecular weight of 1,500 to 5.000 is particularly preferred for the entire blocking copolymer.

The EO/P◯ residues of the blocking copolymer may be block copolymers or random copolymers.

Component (a) is the sole use of an E O/P O copolymer;
Alternatively, two or more types thereof may be used in combination, or a blocking copolymer may be used alone or in combination of two or more types, but a combination of an EO/PO copolymer and a blocking copolymer is particularly preferred. In addition, the combined use of copolymers or blocking copolymers with different molecular weights or EO/PO ratios not only prevents adhesion between single yarns but also reduces yarn breakage, fluff, and loops during high-speed drawing and false twisting. It is possible to improve required characteristics. In such cases, the molecular weight and E O/P O ratio should be determined based on the average EO of the entire component (a).
It is sufficient if the /PO ratio is within the above-mentioned range, but more preferably the molecular weight of each component and the EO/PO ratio are within this range.

When an E O/P O copolymer and a blocking copolymer are used in combination, a weight ratio of the former to the latter of about 80:20 to 30 Nia is particularly preferred.

The amount of component (a) used is preferably 40 to 80% by weight, particularly 45 to 80% by weight based on the total fiber treatment agent.

If the amount of component (a) is less than 40% by weight, fuzz and yarn breakage are likely to occur, and if it is more than 80% by weight, the untwisted portion increases.

Component (b) used in the present invention has the formula [I]: 厘R+-(-X?OCR2[I]) In the formula, R1, X, m and R2 are esters represented by the same definition as above. These esters are generally obtained by reacting alkylene oxide with a compound having a hydroxyl group represented by R, OH, and reacting this with a carboxylic acid.Of course, the compound represented by formula [I] can be obtained by the above method. It is not limited to those manufactured by.

R is an aliphatic hydrocarbon group having 4 to 18 carbon atoms and optionally having a saturated or unsaturated side chain, such as butyl, tert-butylene, 2-ethylhexyl, lauryl, stearyl, oleyl, etc.; aliphatic or an aromatic hydrocarbon group which may have an aromatic substituent, such as butylphenyl, nonylphenyl, etc.; a hindered phenyl group,
Examples include orthophenylphenyl groups; alicyclic hydrocarbon groups such as cyclohexyl; and aliphatic alcohol residues such as benzyl alcohol residues. The alcohol serving as a raw material for R1 may be a primary alcohol or a secondary alcohol. A particularly preferred hydrocarbon group is a saturated aliphatic hydrocarbon group having 4 to 18 carbon atoms, particularly 12 to 18 carbon atoms, which may have a side chain.

The (poly)oxyalkylene group represented by X is (poly)
They are an oxyethylene group, a (poly)oxypropylene group, and a (poly)oxyethylene/(poly)oxypropylene group. The (poly)oxyethylene/(poly)oxypropylene group may be of a random type or a block type. The number (n) of unit oxyalkylene groups is 1 to 20
The number of unit oxyethylene groups and oxypropylene groups is preferably 10 or less, and the number of oxyethylene groups is particularly preferably in the range of 2 to 7. The above numbers are given as average values. Two or more compounds [I] having different structures of the (poly)oxyalkylene group represented by X may be used in combination.

R2 constituting the ester is a hydrocarbon group having 6 to 12 carbon atoms. The hydrocarbon group may be an aliphatic, alicyclic, aliphatic, or aromatic hydrocarbon group, but preferably an aliphatic saturated or unsaturated carbonized group that may have a side chain. It is a hydrogen group.

Typically hexyl, 2-ethyl-hexyl, octyl, decyl, dodecyl, and the like. These hydrocarbon groups may be appropriately selected based on the size of R1, the structure of is preferably in the range of 3 to 15, more preferably 4 to 11. H.L.B.
When the value is outside the range of 3 to 15, the affinity of the treatment agent with synthetic fibers decreases, and the effect of preventing the adhesion of sublime yarns decreases.

Component (b) is blended in an amount of 10 to 40% by weight, more preferably 20 to 40% by weight of the total lubricant.

The component (c) to be added to the fiber treatment agent of the present invention is expressed by the formula [■1:
It is a phosphoric acid ester represented by the formula [wherein R1, X', m, xlM, y and 2 have the same meanings as above].

R3 is a hydrocarbon group having 8 to 26 carbon atoms, and is selected from aliphatic, aliphatic, alicyclic, and aromatic hydrocarbon groups. Examples of aliphatic hydrocarbon groups include saturated or unsaturated hydrocarbon groups that may have side chains, such as octyl, 2-ethylhexyl, lauryl, stearyl, oleyl, erucyl, etc.; examples of aliphatic groups include alkylphenyl. , for example, butylphenyl, octylphenyl, nonylphenyl, dodecylphenyl, etc. Preferably, it is an aliphatic hydrocarbon group or an aliphatic group.

X' represents a (poly)oxyalkylene group, which is (
Although it is the same as described for component b) (compound [I]), it is particularly preferred that X' is a (poly)oxyethylene group and m is in the range of 1 to 3. m is 1~2
May be in the range 0.

M represents a salt of a phosphoric acid ester selected from alkali metals, alkanolamines, amines, and the like.

Alkali metals include sodium or potassium, alkanolamine, jetanolamine, triethanolamine,
Examples include monopropanolamine, monomethyljetanolamine, diethylisopropanolamine, and the like. Examples of amines include primary amines, such as lower amines such as monomethylamine, monoethylamine, and monopropylamine, higher amines such as laurylamine, alkylene oxide adducts of higher amines, aromatic amines such as aniline; secondary amines; Examples include lower amines such as dimethylamine and diethylamine, higher amines such as monomethylmonolaurylamine; tertiary amines such as trimethylamine and dimethyllaurylamine; polyamines such as ethylenediamine and diethylenetriamine; heterocyclic amines such as pyridine and imidazole. , virol, piperazine and the like. Particularly preferred are potassium, sodium, alkanolamines having 4 to 12 carbon atoms, and higher alkylamines to which 5 to 20 moles of alkylene oxide are added.

X and y are 3 in total, and X represents 1 or 2.

The blending amount of component (C) is 0.5 to 10% by weight of the total treatment agent,
Particularly preferred is 1 to 5% by weight.

Component (d) blended into the fiber treatment agent of the present invention is a polyether-modified silicone, more specifically, a part of the alkyl group of the alkyl(phenyl)polysiloxane is substituted with a (poly)oxyalkylene chain. molecular weight 1.0
00 to 40,000 polysiloxanes. The (poly)oxyalkylene chain is selected from (poly)oxyethylene, (poly)oxypropylene, (poly)oxyethylene/(poly)oxypropylene. In particular, those having (poly)oxyethylene/(poly)oxypropylene chains are preferred, and the ratio of oxyethylene/oxypropylene is preferably in the range of 100:O to 40:60. The organic chain bonded to the polysiloxane is preferably a methyl group.

Furthermore, the terminal hydroxyl group of the (poly)oxyalkylene chain may be capped with a hydrocarbon group such as methinoethyl, butyl, phenyl, benzyl group, etc.

The appropriate amount of component (d) is 0.01 to 5% by weight. Particularly preferably 0.1 to 3% by weight.

The present invention basically consists of the above four components, but if necessary, other components such as an emulsification modifier, a rust preventive, etc. may be added. However, the amount thereof is preferably 20% or less of the total weight of the composition.

The processing agent of the present invention is used in the same manner as the oil agent used in ordinary stretching false twisting processing. Generally used as an emulsion type oil,
It is used after being emulsified in water at 5 to 20% by weight, and at that time, a small amount of ethanol, ethylene glycol, ethyl cellosolve, etc. may be used in combination as an emulsification or solubilization aid. In addition, the treatment agent of the present invention may be used as a non-aqueous oil agent, but
In that case, it is used by dissolving 30 to 70% by weight in a diluent such as mineral spirit, n-paraffin, or α-olefin.

For oil supply, a roller touch method, a guide nozzle method, a spray method, etc. can be used.

The appropriate amount of treatment agent applied is 0.3 to 0.8 based on the fiber weight.
% by weight, preferably 0.3-0.5% by weight. If the amount of adhesion is less than 0.3% by weight, spots of adhesion will occur and not only untwisted yarn but also yarn breakage and yarn breakage will increase, and if it exceeds 0.8% by weight, tar-like substances are likely to be generated on the heater.

The components (a) to (d) of the treatment agent of the present invention do not exhibit independent effects, but rather the four components act synergistically to produce the effects unique to the present invention.

The present invention will be explained below with reference to Examples.

Examples and comparative examples A fiber treatment agent was prepared according to the formulation shown in Table -■.

When winding a 150 denier, 48 filament polyethylene terephthalate fiber spun at 3500 m/min,
The aqueous emulsion of the above treatment agent is applied onto the fibers using a guide nozzle method so that the active ingredient amount of the treatment agent is 0.4% by weight (based on the weight of the fibers), and this is stretched and false-twisted using a spindle method at 600,000 rpm. Stretching and false twisting was performed using a machine. The false twisting heater temperature was varied and the number of remaining untwisted fibers to which each treatment agent shown in Table 1 was applied was counted with the naked eye. The results are shown in Table-2. The number of remaining untwisted yarns in Table 2 is 0°5g of sublime processed yarn (
The number of remaining untwisted pieces in 30 m) is calculated per m.

(The following is a blank space) Table 2 Effects of the Invention When undrawn yarn is treated with the fiber treatment agent of the present invention, even if it is stretched and false-twisted and set at high heat, there is almost no untwisted portion on the resulting sublime yarn. It is not observed. Therefore, it is particularly excellent as a treatment agent for fibers treated by the POY-DTY method in which stretching and false twisting are performed simultaneously.

Claims (1)

[Claims] 1. A fiber treatment agent containing the following components (a) to (d): (a) Adding ethylene oxide and propylene oxide to a polyhydric hydroxy compound having at least two hydroxyl groups in the molecule to form ethylene oxide/propylene. A copolymer of ethylene oxide and propylene oxide with an average molecular weight of 1,000 to 6,000 obtained by reacting so that the oxide ratio (weight) is 10/90 to 50/50, and/or at least one terminal hydroxyl group of the copolymer. 40 to 80% by weight of a blocked copolymer in which is blocked with hydrocarbon groups,
(b) Formula [I]: ▲There are mathematical formulas, chemical formulas, tables, etc.▼[I] [In the formula, R_1 is a hydrocarbon group having 4 to 18 carbon atoms, R_2
is a hydrocarbon group having 6 to 12 carbon atoms, X is a (poly)oxyalkylene residue, and n is a number from 1 to 20] Esters 1
0 to 40% by weight, (c) Formula [II]: ▲Mathematical formulas, chemical formulas, tables, etc.▼[II] [In the formula, R_3 is a hydrocarbon group having 8 to 26 carbon atoms, and X' is (poly)oxy alkylene residue, m is a number from 1 to 20, M is an alkali metal, alkanolamine or amine, x is 1 to 2, y is 2 to 1 and z is 0 to 1, and x+
y+z=3] 0.5 to 10% by weight of a phosphoric acid ester represented by: and (d) 0.01 to 5% by weight of polyether-modified silicone
.