JPS61266675A - Treatment oil agent of cationic dye dyeable polyester fiber and treatment of cationic dye dyeable polyester fiber by saioil 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] <Industrial Application Field> The present invention relates to cationic dye-dyeable polyester fibers (hereinafter referred to as
The present invention relates to an oil agent for treating dyeable polyester (abbreviated as dyeable polyester) and a method for treating dyeable polyester using the oil agent.

General polyester fiber mainly composed of ethylene terephthalate units (hereinafter abbreviated as general polyester)
However, due to its various excellent properties, it is often used as a textile for clothing, for example. However, this general polyester
Since it does not have a reactive group, there are problems with dyeing properties, such as not being able to obtain a clear hue like wool or acrylic fibers, and also not having sufficient color fastness.

In recent years, in response to the above-mentioned problem of dyeability, metal salt sulfonate groups, for example, have been introduced into the main chain or terminals of polyesters mainly composed of ethylene terephthalate units, and polyesters that are dyeable with cationic dyes at high pressure or normal pressure have been introduced. Various dyeable polyesters have been developed. However, when these dyeable polyesters are subjected to a false twisting process, unpredictable crimp spots and fuzz frequently occur, degrading quality, and yarn breakage also frequently occurs. There is a particular problem in that it reduces workability.

The present invention relates to a treatment oil agent that addresses the above-mentioned unique problems in dyeable polyester, and a method for treating dyeable polyester using the oil agent.

<Prior art and its problems> Conventionally, even if a commonly used oil agent for general polyester is applied to dyeable polyester, the commonly used oil agent hardly exhibits the desired effect. An oil agent for polyester has been proposed (Japanese Patent Laid-Open No. 51-5
5496, JP-A-52-74021, etc.).

However, although this type of conventional oil agent is somewhat effective in improving the uniformity of dyeable polyester and preventing a decrease in strength and elongation, it is difficult to solve a particular problem in the processing of dyeable polyester, namely in the false twisting process of dyeable polyester. It is impossible to solve the problem that unpredictable crimp spots, fuzz, and even thread breakage frequently occur when subjected to water, which significantly reduces quality and workability.

<Problems to be Solved by the Invention and Means for Solving the Problems> The present invention provides a processing oil that solves the problems specific to the processing of dyeable polyester as described above, and a method for processing dyeable polyester using the oil. It is something.

However, as a result of careful observation of the above-mentioned unique problems that occur in the processing of dyeable polyester, the inventors of the present invention have determined that the cause is friction between fibers and between fibers and between fibers and metal. In particular, the phenomenon of the running yarn jumping out from the heater track (hereinafter abbreviated as jumping)
It was found that it was greatly influenced by Therefore, the present inventors further conducted extensive research to develop an oil agent that resists the above-mentioned friction and suppresses the above-mentioned jumping, and found that a specific high-molecular-weight polyether compound has excellent wear resistance between fibers and between fibers and between fibers and metals. Also, certain amine oxides reduce jumping, and therefore oils containing these in certain proportions are properly preferred, and when properly applied to dyeable polyester, problems specific to the processing of dyeable polyester can be solved. They found that the points could be solved even better overall.

That is, the present invention provides a high molecular weight polyether compound having a molecular weight of 3,500 or more derived from an alkylene oxide having 2 to 4 carbon atoms.
A first invention relating to an oil agent for treating dyeable polyester comprising 0 to 70% by weight and 5 to 30% by weight of an amine oxide represented by the following general formula (I); After melt spinning and before false twisting, add 0.3 to 1.2% by weight of the above processing oil.
The second invention relates to a method for treating the dyeable polyester to be applied.

General formula (I) R2 % formula % [However, R1 is both an alkyl group or an alkenyl group having 6 to 18 carbon atoms. R2 and R3 are each independently a methyl group, an ethyl group or a hydroxyethyl group. ] In the present invention, the dyeable polyester to be treated is
Refers to polyester fibers that have been modified to be dyeable with cationic dyes, such as those in which metal salt sulfonate groups have been introduced into the main chain or terminals of polyester mainly composed of ethylene terephthalate units. It also includes those using other copolymer components to enable non-carrier atmospheric pressure boil dyeing.

In addition, in the present invention, the high molecular weight polyether compound has a molecular weight of 3,500 or more, and is added to an oil solution with a molecular weight of 10 to 7.
Contains 0% by weight. If the molecular weight is less than 3,500 or the content is less than 10% by weight, the abrasion resistance between fibers and between fibers and between fibers and metal will be poor in the dyeable polyester processing process, resulting in poor cohesiveness and lubrication. Sexuality also becomes inadequate. On the other hand, if the content exceeds 70% by weight, problems will occur in the winding shape, twilling will occur, and other problems will occur. Usually, the high molecular weight polyether compound having a molecular weight of 3,500 to 15,000 can be conveniently used.

Specific examples of high molecular weight polyether compounds include alcohols (saturated alcohols with 1 to 18 carbon atoms, oleyl alcohol, synthetic alcohols and reduced alcohols with 10 to 15 carbon atoms, monohydric alcohols such as hexadecanol; carbon atoms 2 to 12 diols. Polyhydric alcohols such as glycerin and trimethylolpropane. Alkylphenols, etc.)
, carboxylic acids (capric acid, adipic acid, trimellitic acid, etc.), amine compounds (laurylamine, ethylenediamine, triethanolamine, etc.), thioether compounds or mercaptan compounds (thioglycol, triethylene glycol dimercaptan, etc.) , ethylene oxide, propylene oxide or butylene oxide are added in a block or random manner. In this case, tetrahydrofuran or the like may be added, or the terminal hydroxy groups of the addition polymer may be etherified or silylated, or the terminal hydroxy groups of the two molecules may be condensed by formalization or silylation. good.

In the present invention, the amine oxide is represented by the above-mentioned general formula (I), and is added to the oil solution for 5 to 3 hours.
Contains 0% by weight. If the proviso conditions of general formula (I) are not met, or if the content is outside of 5 to 30% by weight, the jumping suppressing effect will be poor, and furthermore, the adhesion of the oil to the dyeable polyester will become unstable. Alternatively, it may cause other problems such as fuzz generation.

Specific examples of the amine oxide represented by the general formula (I) include dimethyloctylamine oxide, diethyloctylamine oxide, dimethyllaurylamine oxide, dihydroxyethylbalmitylamine oxide, and dihydroxyethylstearylamine oxide.

These amine oxides can be easily synthesized by reacting the corresponding tertiary amine with hydrogen peroxide (for example, see the Journal of the Chemical Society of Japan, Φ1982, &91).
Synthesis method described on pages 11538-1544).

The oil agent according to the present invention contains predetermined amounts of the high molecular weight polyether compound and amine oxide as described above, and the oil agent contains one selected from the following group A.
It is also effective to contain one species or two or more species. In this case, the molecular weight is 7000 as a high molecular weight polyether compound.
It is preferable to use the above compounds; high molecular weight polyether compound with a molecular weight of 7000 or more/amine oxide represented by general formula (I)/compound of He group = 10-4015-
It is preferable that the processing oil contains 30/30 to 80 (each weight %).

A group bipolyether compound with a molecular weight of 700 to 3500,
Fatty acid ester, mineral oil.

The compounds of Group A above are not particularly limited as long as they substantially function as lubricants or frictional resistance reducing agents, but from other points such as resistance to heater contamination, fatty acid ester λ and purified Mineral oil is preferred. Namely, esters of aliphatic alcohols and monovalent fatty acids [oleyl laurate, oleyl oleate, intridecyl stearate, octyl palmitate, etc.], esters of aliphatic alcohols and aliphatic dibasic acids [dioleyl adipate, etc.]
, mono- or diesters (P
OE (3 mol) octyl ether octanoate, PO
E (5 mol) POP (5 mol) butyl ether oleate, POE (7 mol) octyl ether octanoate, bisPOE (2 mol) tesyl ether sehacate,
POE (6 mol) 1,4-butanediol decanoate, etc., where POE is an abbreviation for polyoxyethylene, POP is an abbreviation for polyoxypropylene], esters of aliphatic polyhydric alcohols and fatty acids [trimethylolethane tride Kanoate, trimethylolpropane tolibargonate,
1,6-hexanediol diolate, glycerin triolate, etc.], and the above fatty acid esters.

Further, the oil agent according to the present invention further contains a high molecular weight polyether compound having a molecular weight of 7,000 or more, an amine oxide represented by the general formula (I), and the compound of Group A,
It becomes even more effective when the divalent aliphatic carboxylic acid soap is contained in an amount of 0.5 to 3% by weight. This is because if dyeable polyester is subjected to extremely harsh conditions during its various processing steps (twisting, knitting, diameter adjustment, weaving preparation, etc.), metal wear and corrosion are likely to occur. This is to prevent such inconvenience. The aliphatic carboxylic acid soaps include alkali metal salts, amine salts, and alkanolamine salts of aliphatic mono- or dicarboxylic acids having 8 to 20 carbon atoms, and more specifically, isostearic acid triethanolamine salt. and dodecenylsuccinic acid sodium salt.

In addition to the above-mentioned components, the oil according to the present invention may contain an emulsifier, an emulsification regulator, a wetting agent, an antistatic agent, a rust preventive, a preservative, etc., as appropriate, within a range that does not impair the effects of the present invention. It is possible.

Next, a method for treating dyeable polyester with the oil agent according to the present invention described above will be explained. The oil agent is applied to dyeable polyester as a spinning oil agent and exhibits its effect well. For its use, it can be applied to the dyeable polyester as an aqueous emulsion, as a solution in an organic solvent or as an oil. The amount of adhesion to dyeable polynisdel is 0.2 to 1.5% by weight.
(active ingredient of oil). In particular, when 0.3 to 1.2% by weight (effective oil component) of the oil agent is applied to dyeable polyester after melt spinning and before stretching or false twisting, the desired effect can be achieved. It's extremely noticeable.

Functions, Effects of the Invention, etc. Very common polyether compounds and amine oxides themselves are already well known as oil components for textiles.

However, in its processing, problems specific to dyeable polyester, such as friction between fibers and between fibers and metal, and especially jumping, can be overcome by using a specific high molecular weight polyether compound and a specific amine as in the present invention. This problem has been clearly solved by using an oil containing a predetermined amount of each oxide, and no precedent has yet been found. In particular, it is assumed that this is to effectively mask the anionic groups such as sulfone groups present on the surface of the dyeable polyester and change the properties of the surface. So far, there have been no examples of suppressing the jumping that occurs frequently.

Therefore, the present invention solves the pressing problems in the art in the processing of dyeable polyester, namely fiber-to-fiber and fiber-to-metal friction and especially jumping, thereby reducing the occurrence of crimp spots, fuzz, and yarn breakage. This has the effect of preventing this from occurring and ultimately significantly improving product quality and workability.

<Examples, etc.> Hereinafter, examples and comparative examples will be given to clarify the structure and effects of the present invention, but the present invention is not limited to these examples.

- Examples 1 to 7, Comparative Examples 1 to 8 Each oil agent listed in Table 1 was blended and adjusted. Then, using these oil agents, dyeable polyester yarn is manufactured by the following method, and the dyeable polyester yarn is further subjected to false twisting, and the jumping during the false twisting process and the fluff of the obtained false twisted yarn are performed. , and heater contamination was measured or evaluated. The results are shown in Table 1.

・Manufacture of ψ dyeable polyester yarn A polymer of polyethylene terephthalate copolymerized with 3 moles of 5-sodium sulfoisophthalate is heated at 283°
After melt spinning at C and cooling in the air, a 10-thick emulsion of each oil was applied using a roller touch method to give 0.8% by weight of each oil.
(Oil agent effective ingredient) attached. Continuing, 1200 m
The yarn was wound at a speed of 7 minutes and stretched 3.2 times to produce a dyeable polyester yarn of 75 denier x 36 filaments.

-False twisting The above dyeable polyester yarn was subjected to one stage of false twisting under the following conditions.

Twisting method Nice spindle method (sapphire bin) Yarn running speed: 130 m 7 minutes Overfeed rate: +4 twists Number of false twists: 3100 T/m False twisting temperature: 190'C ...Jumping measurement and evaluation during false twisting In this process, a peculiar phenomenon occurs in which the dyeable polyester yarn deviates from the normal yarn path to an abnormal location in the torque direction, that is, jumping. This jumping will return to its original state after a certain period of time has passed, and will occur again if the false twisting process is continued. Therefore, assuming that the false twisting time was A minutes (target 60 minutes) and the cumulative jumping time was B seconds, the jumping value was calculated using the following formula and evaluated using the following criteria.

Jumping value = (B/A) Evaluation of fuzz on Φ/false twisted yarn The presence or absence of fuzz on the end face of the false twisted yarn cheese (2kI! rolled) was visually observed and evaluated according to the following criteria.

○: No fuzz occurred ×: 1 to 2 fuzz present XX 2 fuzz present 3 or more fuzz Evaluation of heater contamination The test was operated continuously for 6 days under the false twisting conditions described above. During this time, whenever the yarn broke due to jumping, etc., the yarn was re-set and false-twisted. Then, the presence or absence of tar particles in the thread path of the heater was observed using a magnifying glass, and evaluated based on the following criteria.

○: Almost no heater contamination is observed.

×: Heater contamination is observed.

Note that if the heater becomes contaminated, the yarn will be damaged accordingly.

Table 1 Note) Values in the table are weight%.

A, B, C, and D are the following polyether compounds, respectively.

CH20-((PO)/(EO))-H here, PO
is propylene oxide, EO is ethylene oxide,
po/[0=30/70 (weight ratio, same below),
Random addition, molecular weight 70B: Same as A, molecular weight 3500°C: Same as A, molecular weight 3000°D
: C4H9-((PO)/(EO)]-CHa
So, P O / E 0 = 50150, block addition,
Molecular weight 10a + t) T 1! + aZ 1)'
are the following amine oxides, and a, b, and c correspond to the above general formula <1> 0 OH3 a : C8H□, -N4QOH3 OH3 b: c1□H2, -N→0 LiaoOH3 C2H,OH (! : Cl8H3, -N→02H40H 2H5 a': C4Hg -N"0 2H5 03H.

■ ” ' C20H41-N-+03H7 *1: Trimethylolethane tridecanoate *2:
Mineral oil (I60 redwood seconds) *3: Polyoxyethylene (I5 mol) castor oil ether *4: Polyoxyethylene (9 mol) lauryl ether *5: Alkyl sulfonate sodium salt *6: Polyoxyethylene (5 mol) Lauryl phosphate potassium salt *7: Instearic acid triethanolamine salt The excellent effects of the present invention are clear from the results shown in Table 1. The oils of Comparative Examples 1 to 8 were measured and evaluated in the same manner except that ordinary polyester was used instead of dyeable polyester. In this case, for example, the jumping values were all 0. Therefore, it can be seen that although each oil agent of the comparative example can be applied to the processing of general polyester, it cannot be applied to the processing of dyeable polyester, which has specific problems such as jumping. Examples 8 to 10, Comparative Examples 9 to 13 Each oil agent listed in Table 2 was blended and adjusted. Then, using these oil agents, dyeable polyester POY was manufactured by the following method, and the POY was further subjected to stretching and false twisting. Then, measurements and evaluations were carried out in the same manner as in the case described above. The results are shown in Table 2.

・-Manufacture of POY 5-sulfoisophthalic acid sodium salt and l.

A polymer of polyethylene terephthalate copolymerized with 2 moles of 4-butanediol was melt-spun at 285°C, and after air-cooling, 10% Emulzidine of each oil was applied using the roller touch method. Effective ingredient) attached. Subsequently, it was rolled up at a speed of 3300 m/min to produce a POY of 115 denier x 36 filaments.

- - Stretching false twisting The above POY was subjected to one stage stretching and false twisting under the following conditions to create a twisting method (sapphire pin) Yarn speed: 180 m 7 minutes Stretching ratio: 1.518 Number of false twists: 3200 T/m False twisting temperature = 200℃ Table 2 Note: Values in the table are weight%.

E and F are the following polyether compounds, respectively.

E: HO-C(PO)/(EO))-HT,
PO/EO=50150. Random addition, molecular weight x.

000°F: C engineering 2H230-C (PO)/ (EO) E -
H, P O/E 0 = 50150, block addition, molecular weight 100b is the same as in Table 1 for amine oxide.

*7 is the same as in Table 1.

*8: Polyoxyethylene (7 mol) octyl ether octanoate.

*9: Mineral oil (I90 redwood seconds).

*1O: polyoxyethylene (7 mol) oleyl ether.

The excellent effects of the present invention are clear from the results in Table 2 as well.

Claims (1)

[Scope of Claims] 1. 10 to 70% by weight of a high molecular weight polyether compound having a molecular weight of 3500 or more derived from an alkylene oxide having 2 to 4 carbon atoms, and an amine oxide represented by the following general formula (I). An oil agent for treating polyester fibers dyeable with cationic dyes, containing 5 to 30% by weight. General formula (I) ▲ Numerical formulas, chemical formulas, tables, etc. are available▼ [However, R^1 is both an alkyl group or an alkenyl group having 6 to 18 carbon atoms. R^2 and R^3 are each independently a methyl group, an ethyl group, or a hydroxyethyl group. ] 2 Contains 10 to 40% by weight of a high molecular weight polyether compound having a molecular weight of 7,000 or more and 5 to 30% by weight of an amine oxide represented by general formula (I), and further contains the following A
The oil agent for treating cationic dye-dyeable polyester fibers according to claim 1, which contains 30 to 80% by weight of one or more selected from the group consisting of 30 to 80% by weight. Group A: polyether compound with a molecular weight of 700 to 3500,
Fatty acid ester, mineral oil. 3 In addition, 0.5% mono- to divalent aliphatic carboxylic acid soap
The oil agent for treating polyester fibers dyeable with cationic dyes according to claim 2, which contains up to 3% by weight. 4 For cationic dye dyeable polyester fibers, after melt spinning and before false twisting, the molecular weight derived from alkylene oxide having 2 to 4 carbon atoms is 3500.
10 to 70% by weight of the above high molecular weight polyether compound
, and 0.3 to 1.2% by weight of an oil agent containing 5 to 30% by weight of an amine oxide represented by the following general formula (I).
A method for treating polyester fibers dyeable with cationic dyes. General formula (I) ▲ Numerical formulas, chemical formulas, tables, etc. are available▼ [However, R^1 is both an alkyl group or an alkenyl group having 6 to 18 carbon atoms. R^2 and R^3 are each independently a methyl group, an ethyl group, or a hydroxyethyl group. ] 5 Contains 10 to 40% by weight of a high molecular weight polyether compound having a molecular weight of 7,000 or more and 5 to 30% by weight of an amine oxide represented by the general formula (I), and further contains the following A
The method for treating cationic dye-dyeable polyester fibers according to claim 4, wherein an oil agent containing 30 to 80% by weight of one or more selected from the group consisting of 30 to 80% by weight is applied. Group A: polyether compound with a molecular weight of 700 to 3500,
Fatty acid ester, mineral oil. 6 In addition, 0.5 mono- to divalent aliphatic carboxylic acid soap
Claim 5 provides an oil agent containing ~3% by weight
A method for treating polyester fibers dyeable with cationic dyes as described in 1.