JPS58203119A - Preparation of antistatic synthetic fiber - Google Patents

Abstract

PURPOSE:To obtain the titled fibers having permanent antistatic properties industrially and advantageously in easy steps, by applying a specific compound forming network polymer films to undrawn fibers, and drawing the fibers to form the polymer films. CONSTITUTION:A solution containing a compound, having polyalkylene oxide segments, and capable of forming network polymer films, preferably a mixture of the polyalkylene oxide having hydroxyl groups at both ends with triphenylmethane triisocyanate, preferably a dispersion obtained by dispersing the above- mentioned compound in an oiling agent, is applied to undrawn synthetic fibers, and the resultant fibers are then heated while drawn to form the aimed network polymer films and give the aimed fibers. Preferably, the amount of the polymer films is 0.03wt% or more based on the fibers.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing antistatic synthetic fibers, and more particularly to Ff!
, After or while adhering to undrawn fibers, drawing of the fibers and formation of the polymer film are carried out simultaneously or separately. It is.

Until now, many proposals have been made to completely improve the shortcomings of synthetic fibers, which tend to become dull, and some of them have already been made by companies. A method of adding and mixing an antistatic agent during spinning, ■ A method of applying antistatic treatment to the surface of the fiber, especially in the shape of the fabric, after forming the fiber.
It is roughly divided into two types, and in ■, there is a low f of yarn spinnability due to the addition of antistatic agent 710, a decrease in the physical properties of the yarn, and furthermore, the dye f! 3. Once the antistatic agent on the surface of the fiber falls off during processing, washing, etc., there is a problem that the antistatic performance decreases, and the washing process becomes complicated.

*Anti-static agent MyoS washing, *Easily removed by rubbing, etc.
Yes, it is known.

The present inventors have conducted various studies to improve these drawbacks in anti-static W fabrication of fibers. As a result, the present inventors have developed a polymer film having polyalkylene oxide segmentation during the transition from an unstretched fiber to a stretched state. It has been discovered that permanent antistatic IP performance can be achieved by adhering to the fiber surface with good adhesion and by forming the polymer film into a soft mesh structure.
This invention has been achieved as described in section 6 at the beginning.

This method is industrially extremely advantageous since it can also utilize the steps normally applied when making synthetic fibers.

The present invention will be explained in detail below.

In the present invention, a reticulated polymer film-forming compound having a boria V-kylenoxide segment and c.
A compound such as ethylene oxide, poly-10-pyrene oxide, ethylene-mexide-10-pyrenooxide copolymer, etc., in which a reticulated (three-dimensional structure) polymer having boria V-kyrenoxide segments can be formed, is used to form an undrawn fiber yarn. Either one that has a network structure before it is attached to the substrate or one that becomes this structure in a step after attachment may be used, but the latter is preferable in terms of ease of operation. Preferred specific examples include compounds having an epoxy group at one end or both ends.

For example, a compound modified to have a glycysitiate V group by reacting boria M kylene oxyto with cyclo V hydrin with a hydroxy μ group terminal and a curing agent, diethylene triamine, triethylene tetramino, diethyl M amine/
Phylohiramine, Ami/EthiA/Hiherazino,
Metaphenylenedi-r Mino.

Amines such as menalene aniline, diami/diphenylsulfonate, 7-tav acid anhydride, hexahydro-7-tayic anhydride, tetrahydrophthalic anhydride, pyromellitic anhydride, dodecylsuccinic anhydride, methylnadic anhydride (1) A compound obtained by adding acrylonitri/”& to a polyalkylenoxide having a 7-amino group at the terminal, for example, a polyalkylenoxide having a hydroxyl group at the end, cyanoethylating it, and then reducing it. and a compound having a plurality of VC epoxy groups in one molecule, and the above-mentioned boria I requilenogide having epoxy groups at both ends.

Combination with epoxy resin etc. obtained by condensation with Ebigulorchi F-lint bisphenol A, (2) Polyalkylenoxide with hydroxyl groups at both ends and 6 or more insyanium in one molecule such as triphenyl 7-remetanotriisocyanate. ! Examples include combinations with compounds that do i[. The types and ratios of these compounds are determined as appropriate depending on their reactivity, stretching conditions, fixing conditions, use, etc.

It was a cabinet.

Durability, flexibility, friction properties, hydrophilicity of polyalkylenoxide segment-containing film formed from fiber EV:
It may be modified with other ingredients to remove paranoids such as swamp. And, the molecular weight per one polyoxygen oxide segment is 500 to io, oo.

The content of polyalkylene oxide in the polymer film is preferably 11 oit% or more, preferably 2 oit%.
It is better to set it to 0% or more.

萱ATA9 In the present invention, the liquid containing the network polymer film-forming compound is selected from the above-mentioned compounds in the form of a liquid, an emulsion, or a suspension.

It refers to a liquid substance contained in the form of a solution, etc., and this liquid is characterized by its dispersion tendency and the durability of the film formed on the fibers.
It may also contain other low-molecular compounds or polymers as additives for the purpose of improving thermal properties, flexibility, friction properties, etc. Particularly advantageous is a coating in which the above-mentioned compound is dispersed in a liquid commonly used as an oil agent, which has the advantage of facilitating process simplification.

Next, in the present invention, the undrawn fibers are polyethylene terephthalate and polybutylene terephthalate.

Poly p-ethyleneoxopenozoate etc. and polyesters based on these, nylon 6° nylon 6
6. Nylo 7610, etc., polyamides containing these as main components, polyolefins containing these as main components, polyolefins containing these as main components, polymers containing polyacrylonitrile as main components, polyviny M-Aco Iv
, polysalt<tbi=tv.

It is a fiber made of polysalt, etc.

It refers to fibers before being stretched, which are usually called unstretched fibers.

It also includes so-called half-stretched fibers that have been partially stretched.

These undrawn fibers are obtained by ordinary spinning methods, such as melt spinning, dry spinning, wet spinning, and Emma M jonot spinning.The cross-sectional shape of the undrawn fibers is made to have an uneven shape, making it easier for chemical compound liquids to adhere to it. It is also effective to do this.

In the present invention, the stretching of the fibers and the formation of the polymer film are carried out simultaneously or separately by applying a liquid rich in a film-forming compound to the undrawn fibers and then applying the solution to the undrawn fibers. Such operations can be performed by employing known techniques. That is, after or while adhering an appropriate amount of a film-forming compound solution to an undrawn fiber yarn,
A reticulated polymer film is formed. ■ Heat before stretching the fiber.

FiJ methods include forming a film by applying light or the like, or (2) forming a film by applying heat, light, etc. after stretching the fiber. The amount of the network polymer film formed on the fibers is preferably 0.01% or more, preferably 0.03% or more based on the fibers. Of course, this amount can be reduced as appropriate depending on the static protection requirements.

Note that the fibers used in the present invention may contain flame retardants, coloring agents, gloss improvers, etc. to the extent that they do not impair spinnability and yarn properties.
It goes without saying that an antistatic agent may be included (a polyacykylenoxide-based antistatic agent is particularly effective because it may further enhance the effect of the polymer film on the surface).

According to the method of the present invention, antistatic fibers can be obtained directly from undrawn fibers.
- When liquid containing film-forming compound is used? -1 Overlook,
Perhaps because a part of the compound penetrates into the fiber surface layer during stretching, it has the advantage of extremely excellent anti-static durability.

The beginning of the first eastbound T track of the present invention is high.

The present invention will be explained in more detail with reference to Example 14F. In the examples, the antistatic properties were measured using a rotary static tester of the 7th Kyoto University Chemical Research Institute type, using M cloth as the friction body.
In a 20-C, 40% RH enclosure.

Example 1 Tokyu molecule i2,000 Po II ethylene oxide (hydroxy V groups at both ends) VC Ebigro! Let the rehydrin react and you're done! Perform dehydrochlorination with a knife □
210d/2 obtained by melt spinning was added to a solution in which 10 parts of this compound and 702 parts of metaphenylenediamine were dispersed in 90 parts of water.
4t degree of nylon 6 is immersed in 8% by weight dispersion with respect to fiber VC, while stretching and knitting is 70.
``C, Stretching was carried out under the conditions of a grinding time of 1 second and a stretching ratio of 3.0 times, to obtain a drawn yarn of 70 d and /24 f.

This drawn yarn has a warp of 110 yarns/2.54α and a weft of 100 yarns/2.
After weaving into taffeta with a weight of 541°, it is refined,
Dyeing was carried out for 100-0.1 hours in a bath containing blue acid dye.

The dyed fabric obtained showed a triboelectric charge of 500 cm, a half-life of 4 seconds, and was washed in a household electric washing machine in a bath of 12/e of neutral detergent.
The performance of 700 V and 7 seconds was observed even after repeating the home run for 0 minutes 50 times.

Comparative Example 1 Ordinary nylon 6 taffeta was immersed in the film-forming compound-containing solution of Example 1 to adhere 8 t% of the solution to the fibers, followed by heat treatment at 100° C. for 5 minutes.

When this product was scoured, dyed, and washed in the same manner as in Example 1, the friction voltage after dyeing and half-life r were found.
o V, 50 seckL, 50 tE! ]1
14ifid4,000v, it was 1 for more than ioo seconds.

Example 2 16 parts of the polyethylene 4" xytodiglycidine of Example 1 A/16 parts and polyethylene oxide having 7 amino groups at both ends (average molecule -3i1.00: J r , 2 parts) K (
/ 7th part is a popular understanding (7ta,.

While feeding the yarn from the bath-melting spinneret to the 247ti156 f poly L-f-nnoterephthalate unrolled yarn yarn with a softness of 10%,
Om, 1 rolled up at the break, entered, stretched t1 - la knitting 9
0"C1 and -to r shi -to knitting degree 16 υ
The drawn yarns of zsd, ysblo were obtained by drawing under the conditions of C9 abrasive f medium magnification of 66 times and drawing time of 2 seconds.7
After weaving this drawn yarn in the same manner as in Example 1, it was scoured and dyed in a 9 disperse dye bath at 130"C for 40 minutes.

The frictional charging voltage and half-life of the dyed cloth are each 600V.

5 seconds, and this performance remains almost low F even after 50 washes.
I didn't.

Patent applicant: Unina Katana Co., Ltd.

Claims (1)

[Claims] (1) After or while attaching a liquid containing a film-forming compound to the undrawn fibers, the stretching of the fibers and the formation of the polymer film are carried out simultaneously or separately. hVc has all the characteristics of anti-static 11 = manufacturing method of synthetic fiber.