JPS5936155A - Ionic dye-dyeable polymer composition - Google Patents

Abstract

PURPOSE:To provide titled composition of excellent heat resistance and formability, free from both coloring and decomposition, capable of forming acid dye-dyeable fiber, comprising each specific thermoplastic polyester and polyamide. CONSTITUTION:The objective composition comprising (A) a thermoplastic polyester (pref. consisting mainly of ethylene terephthalate unit) with a 5-alkali metal sulfoisophthalic acid component as a copolymerized one, and (B) a thermoplastic polyamide with an N,N'-bis(amino-n-propyl)piperazine as a component. The amount of said sulfoisophthalic acid component in the above polyester should be 0.5-7 (pref. 1-6)mol% based on the dibasic acid one. It is preferable that either or both of the polyester and polyamide would contain a polyalkylene oxide component as a copolymerized one.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ionic dye-dyeable polymer composition suitable for molded articles, particularly fibers, and more specifically, a polymer composition containing a 5-alkali metal sulfoisophthalic acid component as a copolymer component. Thermoplastic polyester and N,H'-bis(amino-n-
The gist of the invention is an ionic dye-dyeable polymer composition comprising a thermoplastic polyamide having a piperazine as one component.

Attempts have been made for a long time to make polyester molded products, especially polyester/I/fibers, dyeable with acid dyes. Studies have focused on methods of blending containing compounds (mainly polymers) into polyesters.

However, there are problems with these methods.

Lack of heat resistance of monomers and polymers to be introduced.

This may result in coloring or decomposition during polymerization or molding due to interaction with polyester, or lack of moldability due to insufficient miscibility.

The reality is that there are very few successful cases.

The present inventors have conducted various studies to improve these drawbacks in dyeing polyester molded products with acid dyes, and have found that 5.
- A polyester containing an alkali metal nulphoisophthalic acid (hereinafter abbreviated as SIP) component as a copolymerization component, and N, N
'-bis(amino-n-propyl)piperazine (hereinafter referred to as B
Blends of APP (abbreviated as APP) with polyamides as a component give compositions without the above-mentioned drawbacks, and SIP
The present invention as described at the beginning was realized based on the knowledge that the combination of dyeability with basic dyes by ingredients can provide a product with a value of C9.

The present invention will be explained below.

In the present invention, polyethylene terephthalate is used as the polyethylene methane whose copolymerization component is the SIP component.

Polybutylene terephthalate, polyethylene-2,6-
Naphthalate, poly-1,4-cyclohexylene dimethylene terephthalate, etc., and polyesters containing these as main components are copolymerized with a 5-sodium (or potassium) nulphoisophthalic acid component, and these are usually carried out by known methods. However, due to its versatility, polyethylene terephthalate, which is copolymerized with the SIP component, is most suitable. The miscibility with polyamide is such that the amount of S-P component in the polyester is 0.5 to 7 mol%, preferably 1 to 6 mol%, based on one dibasic acid component.

It is suitable from the viewpoint of dyeability with basic dyes.

9 In the present invention, the thermoplastic polyamide containing BAPP as one component includes adipic acid and hetano(cinic acid).

Dicarboxylic acids such as azelaic acid, terephthalic acid, isophthalic acid, boophthalic acid or their esters or halides, ethylenediamine, tetramethylenediamine, hexamethylenediamine, P-phenylenediamine,
pn-phenylenediamine.

P-xylylene diamine, m-xylylene diamine, bis(4-aminosilohexyl)methanato diamine,
Fuctums such as cabroctum and lauryl octum, ε
- It means a polyamide obtained by appropriately combining an acinocarboxylic acid such as aminocaproic acid or ω-aminolauric acid with BAPP. 9C is obtained by a commonly known polycondensation method. In this case, the BAPP component preferably occupies 6 to 30% by weight, preferably 5 to 25% by weight, of the polyamide.

The polymer composition of the present invention can be produced by a known method. That is, blending of polyester and polyamide may be carried out using a dynamic or static melt mixer at any stage prior to molding. Depending on the purpose of use, heat resistant agents, 1Tlit light agents, flame retardants, antistatic agents, matting agents, etc.
Addition and temperature at °C are also acceptable. Depending on the required dyeing performance, usage, etc.
The amounts of the P component and the BAPP component are such that the concentration of the alkali metal sulfonate base and the tertiary amino group is 0-10 equivalent/ton, respectively.

It is desirable to prepare the culm so that it has a culm degree of 50 to 500 equivalent J'i/).

In addition, in the case where one or both of the polyester and polyamide in the present invention is a polymer containing a polyalkylene oxide component as a copolymerization component, such as a copolymer of polyethylene oxide, polypropylene oxide, or ethylene oxide, It has the effect of lowering the dyeing temperature of the combined composition, which may be advantageous.

The polymer composition of the present invention can be widely applied as fibers, films, and other molded products. In addition, 9 other #J! compositions of the present invention are used as one component. A blended fiber product or blended product of 114m made of the composition of the present invention and other fibers.

Exhibition CDs can also be used for mixed knitting and mixed woven products.

EXAMPLES The present invention will be explained in more detail below using Examples. Parts in the examples indicate parts by weight.

Example 1 15 parts of BAPP * 74 parts of cabroctam, 11 parts of adipic acid, and 15 parts of water were charged into an autoclave equipped with a stirrer, and the temperature was kept at 250°C.
d) Polycondensation was carried out under the conditions of 2 hours, 2 hours of pressure release period, and 2 hours of normal pressure period, and the intrinsic viscosity at 25C in 96 superior sulfuric acid was 1.
．． Almost white polyamide chips of No. 2 were obtained.

10 parts of this polyamide chip and 3 mol% of 5IP (Wa
Salt type) component copolymerized polyethylene terephthalate (90 parts) was mixed with 90 parts of copolymerized polyethylene terephthalate, and using an extruder type melt spinning machine,
At 0C, the material is discharged from a spinning hole with a number of spinning holes of 36, and 12
It was wound up at a speed of 0.00 m/min. Next, the stretching temperature was 90°C, the stretching ratio was 5.3 times, and the heat setting temperature was 150°C.
The yarn was drawn at a drawing speed of 800 m/min (JX) to obtain a white drawn yarn of 75 d 156 f, strength 4.8 f/d, and elongation 35%. No fuzz or breakage occurred, and the yarn spinnability was good. After scouring the knitted fabric obtained by tubular knitting this drawn yarn.

Nylomine Blue AG (acid dye manufactured by ICI) 296owf.

Bath ratio 1/100. 5. Dyeing at 120°C for 1 hour. The cloth became a clear blue color. Furthermore, when another net fabric was dyed in red basic dye Raku at 120C for 1 hour, a clearly dyed fabric was obtained.

Example 2 Polyethylene terephthalate 85 was obtained by adding 20 times the molar amount of ethylene oxide to bispheno-A/A and copolymerizing the compound obtained by 5% by weight and S-P (Na salt type) component at 2.54/L/96. Part of polyamide 1 obtained in Example 1
5 parts were mixed and the same operation as in Example 1 was performed to obtain a pale white drawn yarn.

It has been confirmed that the fabric obtained by tube-knitting this drawn yarn can be dyed with acid dyes and basic dyes at a bath temperature of 100°C. Patent applicant: Unitika Co., Ltd.

Claims (1)

[Claims] (1) A thermoplastic polyester containing a 5-alkali metal sulfoisophthalic acid component as a copolymerization component and a thermoplastic polyester containing N,N'-bis(amino-n-propy/L/)piperazino as a component. An ionic dye-dyeable polymer composition comprising a plastic polyamide. 12) The polymer composition according to claim 1, wherein the % plastic polyester is a polyester containing ethylene terephthalate units as a main component. (3) The polymer composition according to claim 1, wherein one or both of the thermoplastic polyester and the thermoplastic polyamide is a polymer having a polyalkylene oxide component as a copolymer component.