JPS59144617A - Antistatic conjugate fiber - Google Patents

Abstract

PURPOSE:An antistatic conjugate yarn that is formed by coating a copolyamide containing a specific compound as a copolymer component with a thermoplastic polymer, thus showing high antistatic properties and light resistance. CONSTITUTION:A copolyamide, which is obtained by adding a polyalkylene oxide bearing amide-forming functional groups such as amino groups and N, N'- bis(amino-n-propyl)piperazine, preferably in amounts of 10-70wt% and 1- 20wt%, respectively, when polycondensation reaction is carried out in an appropriate combination between dicarboxylic acid components such as adipic acid, diamines such as ethylenediamine or lactams such as caprolactam, is used as the core or island component. In the meantime, a thermoplastic polymer such as polyethylene terephthalate is used as the sheath of sea component to produce the objective antistatic conjugate yarn.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite fiber that exhibits antistatic properties.

Synthesis of polyamide, polyester, etc. 841 III
,! It is well known that the introduction of a polyalkylene oxide compound is effective in suppressing the electrostatic damage caused by l'1111. In particular, a method of kneading a block polymer consisting of a polyalkylene oxide component and a polycoastyl or polyamide component is said to be optimal for producing durable antistatic yarn. However, with this method, the polyalkylene oxide component, which is an antistatic agent, tends to be bound in the fiber molecules, resulting in reduced mobility, and it is difficult to achieve sufficient effects at low humidity levels such as those experienced in winter.
, which has the disadvantage of reducing the light resistance of the fiber. Also,
In order to solve the problem of light resistance, a method has also been proposed in which a polyalkylene oxide component is used as a core or island component and a suitable polyester or polyamide is used as a sheath or sea component. The problem is that the essential antistatic effect is small, perhaps because no agent is present.

The present inventors conducted various studies to provide a synthetic fiber with excellent antistatic effect and light resistance, and found that, together with the polyalkylene oxide component, N,N'-bis(amino-n-butyl
Pill) Piperazine (1) 8■〕P and ``) components are copolymerized to form a core or island component of copolymerized boa mite, and a polymer that is easily charged with static electricity is a sheath or sea component for the above purpose. This led to the present invention.

That is, the present invention consists of a copolymerized polyamide containing a polyalkyleneoxy 1-based compound having an amide-forming functional group and I(1)P as copolymerization components (A')
The antistatic conjugate fiber constituted by component [■3] consisting of Merihin 1J plastic polymer covering the component and [Δ] component is considered as the "subtotal".

The polyalkylene oxide compound according to the present invention has an amyl-forming functional group such as an amino group, a carboxyl group, or an alkoxycarbonyl group. .

Compounds having polyalgylene oxyto segments, such as polypropylene oxide dinopylene polypropylene polymers, are used.

A polyalkylene oxide compound having a hisphenol residue in its molecule is preferred because it has good heat resistance.

The molecular weight of the polyalkylene oxide compound is 400-20
,000, preferably 800 to 10,000.

The copolyamide of the [△] component in the present invention is a polyamide obtained by copolymerizing the above-mentioned polyalkylene oxide compound and I-J.

, 2 are i4J-converted using known methods.

Zunawara 7 ethylenecyamine, 1-ramethylenecyamine, hexanonacyamine, hakizahito
.

xyl) methane, xylylensoamine, cyamine components such as phelene diamine, adipic acid, sebacic acid, terephthalic acid, isophthalic acid, naphthalic acid (socarboxylic acid component of i'J, ε-aminocaproic acid, ω-aminododecanoic acid) Amino acid components of Nato.

Turnip 1: Obtained by adding a polyalkylene oxide compound and II A 11 P during polycondensation of an appropriate combination of lactam components such as J lactam and lauryl lactam. The amount of polyalkylene oxide component and I(^IIP component) in the copolyamide should be 10 to 70% by market weight and 1 to 20% by market weight, respectively. It is preferable in this respect.

Next, as the thermoplastic polymer of the component [B] in the present invention, polyethylene terethothalate 1-, polybutylene ethylene terephthalate, poly p-ethylene oxyhenzoate, etc., and polycoastyl and nylon containing these as main components are used. I.J.
Polyamides containing these as main components, polyenalene, bolybt-cobylene, etc., and polyamides containing these as main components; Polyolefins having the following properties are suitable.

The fiber of the present invention has a CA. ) component is due to [I3] component.

It is a composite fiber coated with a core-sheath type or an 11σ island type. Fibers having such a shape can be obtained by known methods. Also, control performance, light resistance, 5 yarn reeling properties. If we change the filamentous properties, etc., we get [△] component and [)3
The cross-sectional area ratio between the two components is 5:95 to 5 (may be in the range of 1:50. Also, either or both of the [Δ] component and [:B) component: "Fuel agent, Copper heating agent. .

-) Matting agent. It goes without saying that it contains colorants and the like. [Although it is not desirable to include components that may affect light resistance in the 13-part component.

If the amount is small, the polyalkylene oxide component may be added to the [I3] component to make it more golden-white and give it antistatic properties in the - direction.

The present invention will be further explained in detail with reference to Examples. In the Examples, the antistatic property was measured using a rotary static tester of Kyoto University Kaken 2, using a cotton cloth as a friction body.
The measurement was carried out using a method to determine the frictional charging voltage and half-life in an atmosphere of °C, /10% R I-1.

(Parts indicate parts by weight, 1) Example: 35 parts of polyethylene oxide having amino groups at both ends (average molecular weight 4.000), 5 parts of BAI'P, 3.5 parts of adipic acid, and 56.5 parts of caprolactam. A copolyamide was obtained by a conventional melt polycondensation method.

Copolymerized polyamide and ordinary polyethylene terephthalate (containing 0.5% by weight of titanium oxide particles),
A copolymerized polyamide core is formed, and the cross-sectional area ratio is 1 (]:
90 core/sheath type composite yarn was prepared using an extruder type melt spinning machine at 280'c.

It is discharged from the spinning hole with 36 holes. 1, 2
(It was wound up at a speed of lom/min. Then, the stretching temperature was 90 m/min.
℃, stretching at a stretching ratio of 3.3 times. 15d/3
The drawn yarn had a Gf of 4.1 g/d, a strength of 4.1 g/d, and an elongation of 35%. There were almost no problems such as yarn breakage, and the yarn spinnability was good.

- After tube knitting the drawn yarn described in 5 parts g/= density, scouring it,
Dyeing was carried out at 135'C for 30 minutes in a bath containing I'j color disperse dye. The resulting dyed fabric had a 1 yen static charge voltage and a 1' life of t, ooo v, and 10 seconds, respectively, and this performance did not deteriorate even after Baume laundry was repeated 30 times. As the polyamide, a copolyamide prepared by f4% from 7IO parts of the polyethylene oxide compound used in the example, 1.5 parts of adipic acid, and 58.5 parts of the oak 1j lactam was used, and the same operation as in Example 3 was carried out. The voltage and half-life of dyed cloth are 2.000 and 2.000, respectively.
V and 70 seconds.

Patent author: Unitika Co., Ltd.

Claims (1)

[Claims] (1) Consisting of a copolymerized polyamide containing a polyalkylene oxide compound containing an amide-forming functional group and N,N'-bis, (amino-rl-zoshinopyl)piperazine as copolymerization components [AJ component and (A) Thermal FI covering the components
An antistatic composite fiber composed of an IT plastic polymer and a 4y [I3] component.