JPH0299669A - Textile treating agent - Google Patents

Abstract

PURPOSE:To obtain a textile treating agent capable of imparting excellent strength and elongation by treating fiber at ambient temperature and simultaneously reducing the amount of peeling off by blending a water-soluble acrylic polymer with a specific neutralized copolymer. CONSTITUTION:A textile treating agent, obtained by blending a water-soluble acrylic polymer, e.g., poly(meth)acrylic acid, with a neutralized copolymer (e.g., copolymer of isobutylene maleic acid-based monomer) of one kind of monomer selected from isobutylene, styrene and acrylic acid-based monomers and a maleic acid-based monomer as constituent units neutralized with an alkaline agent and capable of imparting excellent strength, etc., to natural, synthetic fibers, etc., by dipping thereof in the resultant blend or applying the afore-mentioned blend to the above-mentioned fibers, etc., without heating and simultaneously reducing the amount of peeling off. Furthermore, if PVA is added, strength, etc., are further improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fiber treatment agent, and more particularly to a fiber treatment agent that imparts superior strength and elongation to fibers and reduces the amount of flaking. be.

[Prior art and problems to be solved by the invention] Weaving cotton threads to produce textiles! In order to prevent yarn breakage during the weaving process, the cotton yarn is usually treated with a specific treatment agent. This treatment gives strength to the cotton yarn and prevents it from breaking.

On the other hand, in the case of synthetic fibers, when weaving them into fabrics, a specific processing agent is used mainly for the purpose of converging the fabrics.

As such a fiber treatment agent, one consisting of a water-soluble acrylic polymer and polyvinyl alcohol is known (CMCr Water-Soluble Polymer Applications and Markets J 1984).
Published 11.24, P2O).

Although this fiber treatment agent is at a nearly satisfactory level in terms of imparting strength, etc. to cotton threads and convergence to synthetic fibers, it has the disadvantage that the treatment agent must be heated for this purpose. Furthermore, in any case, there is a problem in that the amount of the treatment agent that comes off after treatment (usually referred to as the amount of size removed) is large, and this causes the problem that cotton yarn, especially in the case of cotton yarn, causes cotton to fall off.

The present invention solves these conventional drawbacks and provides a fiber treatment agent that imparts strength and elongation to fibers, reduces the amount of peeling, and does not require special heating during treatment of fibers. With the goal.

[Means for Solving the Problems] In order to achieve the object described in Aij, the inventor conducted various studies on the components to be added to the water-soluble acrylic polymer, and as a result, used a neutralized product of a specific copolymer. By doing so, it is possible to impart strength and elongation to the fibers, and;
The present inventors have discovered that a fiber treatment agent can be obtained that has a small amount of peeling of the treatment agent and can further treat fibers at room temperature, and based on this knowledge, the present invention has been completed.

-4゛That is, according to this invention, the following inventions 1 and 2 are provided.

1. A fiber treatment agent consisting of a neutralized copolymer containing a maleic acid monomer and at least one monomer selected from inbutylene, styrene, and an acrylic acid monomer, and a water-soluble acrylic polymer. .

2. Neutralized copolymer comprising at least one monomer selected from inbutylene, styrene, and acrylic acid monomers and a maleic acid moamer,
A fiber treatment agent made of water-soluble acrylic polymer and polyvinyl alcohol.

There is no particular restriction on the fibers to which the fiber treatment agent of the present invention is applied, and it is effective for natural fibers, artificial fibers, regenerated fibers, semi-synthetic fibers, and synthetic fibers.

The neutralized copolymer constituting the fiber treatment agent of this invention is a copolymer containing at least one monomer selected from isobutylene, styrene, and acrylic acid monomers and a maleic acid monomer as a constituent unit. It is a combination,
The carboxyl groups present therein are neutralized with an alkali and used.

Examples of the acrylic acid monomer include acrylic acid, methacrylic acid, or esters thereof, and examples of the maleic acid monomer include maleic acid or maleic anhydride.

Specifically, inbutylene-maleic acid monomer copolymer, styrene-maleic acid monomer copolymer, acrylic acid monomer-maleic acid monomer copolymer, inbutylene-styrene-maleic acid monomer copolymer Coalescence, inbutylene-acrylic acid monomer-maleic acid monomer copolymer, styrene-acrylic acid monomer-
Examples include binary, ternary, or quaternary copolymers such as a maleic acid monomer copolymer and an isobutylene-styrene-acrylic acid monomer-maleic acid monomer copolymer.

The molar ratio of the heptadone unit selected from the maleic acid monomer and the other heptad units in these copolymers is usually within the range of 1:o, 9 to 1:5. Also,
This copolymer has a viscosity average molecular weight of 500 to 400,
000. Preferably, a range of 1.000 to 200,000 is suitable.

Such a copolymer can be produced, for example, as follows.

That is, when using inbutylene, the required amounts of each of the 7-mer components except isobutylene are charged into a reaction vessel, sufficiently degassed while cooling, and then inbutylene is added. Next, a polymerization initiator is added, and the mixture is heated and reacted while stirring. The reaction temperature at this time is 30 to 200°C1
Preferably a temperature of 50 to 150°C is used. In addition, the polymerization initiators used at this time include benzoyl peroxide,
Preferred are lauroyl peroxide, cumene hydroperoxide, tertiary butyl hydroperoxide, dicumyl peroxide, azohisisobutyronitrile, and the like.

This reaction can be performed using ethylbenzene, cumene,
n-7' thylbenzene, acetonitrile, nitromethane, nitroethane, methyl ethyl ketone, acetone, N,
This can be carried out in a solvent such as N-dimethylformamide or dimeral sulfoxide. The reaction time varies depending on the type of monomer, the mixing ratio, the presence or absence of a solvent, the reaction temperature, etc., but is usually in the range of 0.5 to 20 hours.

Next, to neutralize the copolymer thus obtained, an aqueous solution of sodium hydroxide, potassium hydroxide, ammonium hydroxide, sodium carbonate, and ammonia is added to the copolymer, O, preferably 5
This is done by stirring at 0-100°C for 0.5-10 hours. As the neutralizing agent, not only the above-mentioned inorganic bases but also organic bases such as sodium acetate, urea, thiourea, and organic amines can be used. The degree of neutralization is based on the number of acidic groups present before neutralization.
Approximately 0.1 to 1.0 is appropriate.

A water-soluble acrylic polymer is used as the other component constituting the fiber treatment agent of this invention.

Examples of the water-soluble acrylic polymer include polyacrylates, polymethacrylates, partially saponified polyacrylic esters, partially saponified polymethacrylic esters, and polyacrylamide.

These water-soluble acrylic polymers have a viscosity average molecular weight of 1
．． 000 to 5,000,000, preferably 5,000
-1,000,000 is used, but this molecular weight is not particularly limited.

There are no particular restrictions on the blending ratio of these water-soluble acrylic polymers, and they can be blended over a wide range. That is, for 100 parts by weight of the neutralized copolymer, 5 parts by weight
~200,000 parts by weight, preferably 10-100,0
00 parts by weight.

The present invention provides a fiber treatment agent comprising a neutralized product of the copolymer and the water-soluble acrylic polymer; A fiber treatment agent comprising alcohol is also provided.

The polyvinyl alcohol used here may be one obtained by saponifying ordinary polyvinyl acetate with an alkali, acid, or aqueous ammonia, and its degree of polymerization is 1.
00-5, OOO1 preferably 200-3,000.

The blending ratio of this polyvinyl alcohol also ranges widely, from 5 to 5 parts by weight per 100 parts by weight of the neutralized copolymer.
200,000 parts by weight, preferably 10-100,00 parts by weight
It is 0 parts by weight.

In this invention, polyhydric alcohol or its ester,
For example, glycerin, ethylene glycol, diethylene glycol, triethylene glycol, etc. can be blended. The appropriate amount of these compounds is 0.1 to 5% by weight based on the total weight. Furthermore, an anionic or nonionic surfactant may be added as a dispersant.

The fiber treatment agent of the present invention can be prepared by blending a water-soluble acrylic polymer into an aqueous solution of the neutralized copolymer, adding water if necessary, and stirring and mixing at room temperature. . Further, it is prepared by adding polyvinyl alcohol if necessary and further adding a plasticizer if desired.

The solution prepared in this manner with a concentration of 2 to 20% by weight is used as a treatment bath, and the desired fibers are immersed in this solution, or the fibers are passed through a roller in the treatment bath to squeeze the treatment liquid onto the fibers. , can be applied by drying.

[Examples] The present invention will be described in more detail below with reference to Examples and Comparative Examples.

Examples 1 to 7 and Comparative Examples When using inbutylene, a predetermined amount of components other than inbutylene was charged into an autoclave with an internal volume of 1, and -10
While cooling to ℃, thoroughly degas the inside of the container. Next, a predetermined amount of isobutylene, 460 mQ of acetonitrile as a solvent, and 0.6 g of benzoyl peroxide as a catalyst were added, and the polymerization reaction was carried out at 110"O for 2 hours while stirring at 400 rpm, and then the reaction mixture was poured into water. A copolymer was obtained as a precipitate.The viscosity average molecular weight, amount of inbutylene, amount of styrene, amount of methyl acrylate, and amount of maleic acid of the copolymer thus obtained are shown in molar ratios on the vest.

Next, an aqueous sodium hydroxide solution was added to this copolymer to adjust the concentration to 20% by weight, followed by a neutralization reaction at 90°C for 6 hours. Next, a water-soluble acrylic polymer and water were added to an aqueous solution of the neutralized copolymer to prepare a fiber treatment agent.

In Example 7, a fiber treatment agent containing polyvinyl alcohol was also prepared.

This treatment agent was kept at 30°C, and a total of 1,000 cotton threads 405 (4 Aramaki beams) were squeezed through the treatment agent under a squeezing pressure of 2.4 kg/cm'' using two squeezing rollers.
It was passed through at a speed of 0 m/min and dried with a drying roller at a temperature of 113°C to obtain a treatment system.

The treatment system thus obtained was cut into 50 cm pieces and used as a sample, and its tensile strength and elongation were measured using a tensile tester (manufactured by Toyo Baldwin Co., Ltd.). In addition, the amount of peeling and cotton removal of the treatment agent was also measured.

The results are shown in the table.

[Advantageous Effects of the Invention 1] According to the present invention, a fiber treatment agent is provided that imparts excellent strength and elongation to fibers and reduces the amount of peeling. Further, this fiber treatment agent does not require particular heating, and can sufficiently function as a fiber treatment agent when treated at room temperature. Therefore, it is extremely useful in the textile industry.

Claims (1)

[Scope of Claims] 1. Neutralized copolymers containing at least one monomer selected from isobutylene, styrene, and acrylic acid monomers and maleic acid monomers as constituent units, and water-soluble acrylic polymers. A fiber treatment agent. 2. A neutralized product of a copolymer having a maleic acid monomer and at least one monomer selected from isobutylene, styrene, and acrylic acid monomers,
A fiber treatment agent made of water-soluble acrylic polymer and polyvinyl alcohol.