JP2007162160A - New fiber processing agent and fiber product using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new softener improved in the following problem: though W/O emulsion type silicone processing agents having good stability have been used as conventional silicone-based softeners and usual soft and flexible hand feel can be obtained when wool fabrics, cotton jeans and the like are soft processed by using the processing agents, but it has been difficult to obtain soft hand feel with bulky and voluminous feeling removed in cores from the fabrics, therefore, the development of a new softener improved in the problem is eagerly required, especially in the wool industry. <P>SOLUTION: Though conventional silicon-based softening processing agents have been W/O type emulsion-based agents having high stability, a technique for stably producing an O/W liquid crystal emulsion type silicone processing agent (softener) for fibers that has been difficult to establish has been found and is used to solve the problem. By processing the fabrics using the O/W liquid crystal emulsion type silicone oil processing agent (softener) for fibers, it is possible to obtain the soft hand feel with bulky and voluminous feeling removed in cores of the fabrics that has not been obtained with conventional silicone-based softeners. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a liquid crystal emulsion type emulsion processing agent capable of uniformly dispersing a water phase for forming a liquid crystal in an oil phase when preparing an O / W emulsion type emulsion liquid, a method for producing the processing agent, and the processing agent. It is related with the textiles processed by.

Conventionally, emulsion processing agents for fiber processing have adopted the W / O type emulsion form from the viewpoint of technical difficulty such as ease of making processing agents and stability of processing agents made. .
JP 05-263366 A JP 2003-155667 A JP 2004-131895 A

This W / O type emulsion processing agent, especially softener, provided fiber processed products without any problems in the industry and was satisfied with flexibility, but due to the recent industry movement, it has a different texture than before There has been a strong demand for softeners.

Therefore, the present inventors have conducted intensive research, and the O / W type emulsion softener cannot be produced by the conventional W / O type emulsion softener. As a result, the present inventors have found that a soft texture can be obtained, and have reached the present invention.

On the other hand, as a suitable method for preparing an emulsified liquid of O / W type (oil-in-water type) emulsion type such as hair rinse, cream, lotion, etc., for example, a liquid crystal structure comprising an oil phase and a part of an aqueous phase is formed in advance. However, there is a method in which the remainder of the aqueous phase is added to this and phase-inverted to form an O / W type emulsion. According to this method, compared to other methods in which the oil phase and the aqueous phase are simply mixed and emulsified. An O / W emulsion type emulsified liquid can be easily produced, and an emulsified liquid having a uniform oil phase dispersion and excellent stability can be obtained.

However, in the case of the above-described method, as the aqueous phase, in addition to water, for example, a water-soluble substance in the compounding component of the target emulsified liquid such as a low-temperature stabilizer, organic salts, inorganic salts, etc. is dissolved in water. Since there is no affinity between the water phase and the oil phase and it is difficult to disperse the oil phase in the water phase, a large mechanical force is required for forming the O / W type emulsion. In addition, there was a limit to homogenization of the dispersed state of the oil phase in the emulsified liquid. Further, in order to obtain a uniform emulsified liquid by the above method, when the liquid crystal structure is phase-inverted to an O / W type emulsion, the phase inversion temperature is raised to the melting point of the oil phase or higher, and the oil phase into the water phase is obtained. It is necessary to facilitate the dispersion of heat, and for that purpose, energy and time for heating and cooling are required.
JP-A-9-95418 Japanese Patent Laid-Open No. 10-180085 JP 2003-212716 A

The present invention facilitates dispersion of an oil phase in an aqueous phase and emulsification when phase inversion of a liquid crystal structure already employed in the hair rinse, cream, etc. to an O / W type emulsion. An unprecedented fluffy feeling for fabric processing for fiber processing, which focuses on the method of producing an emulsified liquid that can produce an emulsified liquid with a more uniform dispersibility of the oil phase in the liquid. It is an object to provide an O / W type liquid crystal emulsified emulsion for obtaining a soft texture and to provide a fiber product processed with the emulsified liquid to the world.

As a result of intensive studies to solve the above problems, the present inventors have found a technique for stably producing an O / W type liquid crystal emulsion as a fiber processing agent. That is, in the case of conventional W / O type emulsions, a mixture of polar silicone such as amino-modified silicone and nonionic surfactant as emulsifier, water-soluble polyhydric alcohol such as sugar alcohol, and anionic surfactant Water (if necessary, hot water) is added dropwise to produce a so-called W / O type emulsion, whereas the present invention is a nonionic surfactant, a water-soluble polyhydric alcohol such as a sugar alcohol, In addition, water (hot water if necessary) is dropped into a high-concentration mixture of an anionic surfactant to prepare a base base mixture for so-called liquid crystal emulsification, and then polar silicon such as amino-modified silicon is dropped into the base base mixture A high viscosity liquid crystal emulsifier is prepared. Furthermore, water (if necessary, hot water) can be dropped onto the paste-form material to form an O / W type liquid crystal emulsion for fiber processing with an appropriate viscosity. Next, the contents of the present invention will be described in more detail.

The polar silicone oil (A) referred to in the present invention is amino-modified silicone oil, carbonyl-modified silicone oil, carbinol-modified silicone oil, polyether-modified silicone oil, methylhydrogenpolysiloxane, amino / alkoxy-modified silicone oil epoxy / Examples include, but are not limited to, polyether silicone oil and amino / polyether silicone oil. In the present invention, when the above-mentioned polar silicon oil is used, the liquid crystal emulsification type silicon processing agent referred to in the present invention can be obtained, but the liquid crystal referred to in the present invention can also be used even if nonpolar silicon oil is used. An emulsion type stable emulsion type processing agent cannot be obtained.

The water-soluble polyhydric alcohol (B) referred to in the present invention is 1.3. Butanediol,
4). There are butanediol, trimethylolpropane, ethylene carbonate, propylene carbonate, polyoxyethylene polyoxypropylene block polymer (pluronic nonionic surfactant), sorbitol, mannitol, mannose, xylitol, maltitol, oligosaccharide alcohol, etc. It is not limited to.

Nonionic surfactant (C) referred to in the present invention is polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene cetyl ether, polyoxyethylene secondary alcohol ether, polyoxyethylene. Examples include, but are not limited to, styrenated phenyl ether, polyoxyethylene isodecyl ether, and polyoxyalkylene tridecyl ether.

The anionic surfactant (D) referred to in the present invention is an alkyl sulfate sodium salt, alkyl ether sulfate sodium salt, alkyl sulfate ester salt, alkyl benzene sulfonate, polyoxyethylene lauryl ether sodium sulfate, polyoxyethylene alkyl Examples include, but are not limited to, sodium ether sulfate, sodium dodecylbenzenesulfonate, sodium di-2-ethylhexylsulfosuccinate, sodium dialkylsulfosuccinate.

In the present invention, the blending ratio of the polar silicone oil (A) and other water-soluble polyhydric alcohol (B), nonionic surfactant (C), and anionic surfactant (D) is: ) 20-40 parts, preferably 20-35 parts, (B) 2-8 parts, preferably 4-6 parts, (C) 5-15 parts, preferably 8-12 parts, (D). The blending ratio is 0 to 5 parts, preferably 0.8 to 1.8 parts, and 100 parts by adding water or hot water. If the blending ratio is out of this range, a stable liquid crystal emulsion type silicon oil processing agent for fibers cannot be obtained, or a satisfactory processing agent that has increased viscosity and can be used as a processing agent for fibers cannot be obtained.

The silicone oil processing agent for O / W type liquid crystal emulsified fiber produced in the present invention is made of natural fibers such as cotton, wool, silk, hemp or the like, or rayon and synthetic fibers such as polyester, nylon, acrylic, etc. Applicable to those mixed products as appropriate, but among them, cotton, wool, rayon, polyester / cotton, etc., especially in comparison with the conventional W / O type emulsion processing agent, the swelling feeling that the core of the fabric is removed. A soft texture can be imparted, which is preferable. The material form is staple, filament, spun yarn, processed yarn, non-woven fabric,
A woven fabric, a knitted fabric, or a sewn fiber product may be in a so-called piece state.

As a processing method in that case, the above-mentioned processing agent 1-10%, Preferably 3-4% and water are mixed and it is set as a processing liquid. A so-called pad-dry cure method in which fibers such as cotton are dipped in this processing liquid, padded, wrung with mangle, then dried at 100 to 120 ° C., and then heat treated at 130 to 180 ° C. for 1 to 3 minutes, Add 100% to the above processing agent by adding water to 2-10% of the fiber weight. Using this as a processing liquid, fibers such as denim, fiber fabrics, and fiber products are immersed in the processing liquid, and the temperature is increased to 30 to 80 ° C., preferably 30 to 50 ° C. while stirring the processing bath, for 5 to 30 minutes. Immerse treatment. Thereafter, there is a so-called immersion treatment or submerged treatment method in which centrifugal dehydration is performed and drying is performed by tumble dry. Furthermore, there are a spray method and a coating method.

At the time of the above-mentioned processing, the silicone oil processing agent for liquid crystal emulsification type fibers of the present invention and various binders, a crosslinking agent, etc., if necessary, are mixed in water to obtain a processing liquid, and the above pad-dry-cure method or immersion Processing can also be performed by a method, a submerged treatment method, a spray method, or a coating method.

In the present invention, by processing fibers, fiber fabrics, and fiber products using a liquid crystal emulsification type silicon oil processing agent for fibers, the fabrics are compared with those using conventional W / O type emulsion softeners. It is possible to obtain a processed product with a soft touch texture that is cored and rich in swell.
Hereinafter, the present invention will be further described with reference to examples.

(Manufacture of silicon oil finishing agent for O / W liquid crystal emulsified fiber)
5 parts of polyoxyethylene polyoxypropylene block polymer (B), 10 parts of polyoxyethylene secondary alcohol ether (C), 1.2 parts of alkyl sulfate sodium salt (D), 0.2 part of 90% acetic acid The same amount of water or hot water as B to E is added to form a liquid crystal, 30 parts of amino-modified silicone oil (A) is added little by little to make a W / O type emulsion, and water is added to the emulsion. Alternatively, add hot water to make an O / W emulsion.

(Processing method for fiber fabric using the above-mentioned processing agent)
The processing agent is 4%, acrylic / silicone binder (Parazol GH-S: manufactured by Ohara Palladium Chemical Co., Ltd.) 2%, and the rest is diluted with water to make the processing solution 100% wool. The fabric was dipped and squeezed with a mangle so that the pickup was 100%, and then dried at 110 ° C. for 3 minutes. Next, the fabric was heat-treated at 160 ° C. for 1 minute with a tenter-type baking machine to obtain a processed product. The processed fabric had a soft texture with a swelled feeling, with the core of the fabric of the present invention removed.

(Comparative Example 1)
30 parts of amino-modified silicone oil (A), 5 parts of polyoxyethylene polyoxypropylene block polymer (B), 1 part of polyoxyethylene secondary alcohol ether (C)
After adding 0.2 part of 90% acetic acid to 1.2 parts of alkyl sulfate sodium salt (D), water or hot water is added in several portions and emulsified. In this case, the emulsifying system is a conventional emulsion type processing agent (softening agent) of W / O type, and it becomes a processing agent.
This was used in place of the processing agent in the processing method of this example, and after that, it was processed into a woolen fabric in the same manner as the processing method of this example. I couldn't get a match.

(Comparative Example 2)
10 parts of polyoxyethylene polyoxypropylene block polymer (B), 10 parts of polyoxyethylene secondary alcohol ether (C), 1.2 parts of alkyl sulfate sodium salt (D), 0.2 part of 90% acetic acid The same amount of water or hot water as B to E is added to form a liquid crystal, and 30 parts of amino-modified silicone oil (A) is added little by little to make a W / O type emulsion. Water or hot water was further added to make an O / W type emulsion, but the viscosity of the emulsion was extremely high and it did not become an O / W type emulsion.

(Manufacture of silicon oil finishing agent for O / W liquid crystal emulsified fiber)
5 parts of polyoxyethylene polyoxypropylene block polymer (B), 5 parts of polyoxyethylene secondary alcohol ether (C), 0.8 parts of alkyl sulfate sodium salt (D) and water equivalent to B to E Alternatively, hot water is added to form a liquid crystal, 30 parts of methyl hydrogen polysiloxane (A) is added in small portions to make a W / O type emulsion, and water or hot water is further added to the emulsion. An emulsified O / W emulsion is made.

(Processing method for fiber fabric using the above-mentioned processing agent)
This processing agent is 3.5%, urethane binder (PU-22: manufactured by Ohara Palladium Chemical Co., Ltd.) 2%, and the rest is diluted with water to make a processing solution of 100% wool. Was then squeezed so that the pick-up would be 100% with a mangle and then dried at 110 ° C. for 3 minutes. Next, the fabric was heat-treated at 160 ° C. for 1 minute with a tenter type baking machine to obtain a processed product. The processed fabric has a soft texture with a swelled feeling, with the core of the fabric of the present invention removed.

(Comparative Example 3)
30 parts of methyl hydrogen polysiloxane (A), 5 parts of polyoxyethylene polyoxypropylene block polymer (B), 5 parts of polyoxyethylene secondary alcohol ether (C), 0 parts of alkyl sulfate sodium salt (D) Add 8 parts of water or hot water in small amounts to make an O / W emulsion. In this case, the emulsion separated in a few days and could not be used as a stable fiber processing agent as in this example.

(Comparative Example 4)
1 part of polyoxyethylene polyoxypropylene block polymer (B), 5 parts of polyoxyethylene secondary alcohol ether (C), 0.8 parts of alkyl sulfate sodium salt (D) and water equivalent to B to E Or add hot water to form a liquid crystal, add 30 parts of methylhydropolysiloxane (A) in small portions to make a W / O type emulsion, and add water or hot water to the emulsion. A / W type emulsion was produced. A wrinkled wool fabric was processed with the processing agent in the same manner as in Example 2. However, the intended fabric of the present invention was not cored and a soft texture with a swelled feeling was not obtained.

(Manufacture of silicon oil finishing agent for O / W liquid crystal emulsified fiber)
5 parts of polyoxyethylene polyoxypropylene block polymer (B), 10 parts of polyoxyalkylene tridecyl ether (C), 1.0 part of alkyl sulfate sodium salt (D), about the same amount as B to E Add water or hot water to make a liquid crystal, add 30 parts of epoxy / polyether silicone oil (A) in small portions to make a W / O type emulsion, and add water or hot water to the emulsion. An O / W liquid crystal emulsified silicone oil fiber processing agent was manufactured.

(Processing method for fiber fabric using the above-mentioned processing agent)
4% of the processing agent for the fiber, 3 parts of the same binder parasol GH-S (made by Ohara Palladium Chemical Co., Ltd.) as used in Example 1, and then adjust the processing liquid consisting of water and take After dipping a broad fabric made of 55% cotton / 45% polyester in the processing liquid, the fabric was squeezed with mangle and dried and heat-treated in the same manner as in Example 1, and the core of the fabric intended for the present invention was removed. A fabric with a soft texture could be obtained.

(Manufacture of silicon oil finishing agent for O / W liquid crystal emulsified fiber)
5 to 5 parts of oligosaccharide alcohol (B), 10 parts of polyoxyethylene secondary alcohol ether (C), 1.2 parts of alkyl sulfate sodium salt (D), 0.2 part of 90% acetic acid, and B to E About 30% of water or hot water is added to form a liquid crystal, 30 parts of amino-modified silicone oil (A) is added little by little to make a W / O type emulsion, and water or hot water is further added to the emulsion. An O / W type liquid crystal emulsified silicone emulsion for fibers was obtained.

(Processing method for fiber fabric using the above-mentioned processing agent)
Using 5% of the fiber processing agent with respect to the weight of the object to be treated and 2% of the binder similar to that of Example 1 with respect to the weight of the object to be treated, the water ratio is 1:20. Then, jeans made of 100% cotton were immersed as an object to be processed, and the temperature was gradually raised and immersion treatment was performed at 40 ° C. for 10 minutes. Thereafter, it was washed with water and dehydrated, and then dried with a tumble dryer at 80 ° C. for 1 hour. As a result, it was possible to obtain a jeans with a soft texture and an extremely cored, swelled sensation, which is an object of the present invention.

(Comparative Example 5)
5 parts of oligosaccharide alcohol (B), 3 parts of polyoxyethylene secondary alcohol ether (C), 1.2 parts of alkyl sulfate sodium salt (D), 0.2 part of 90% acetic acid, the same as B to E About 30% of water or hot water is added to form a liquid crystal, 30 parts of amino-modified silicone oil (A) is added little by little to make a W / O type emulsion, and water or hot water is further added to the emulsion. O / W type emulsion was made, but the viscosity of the emulsion was remarkably high, and it did not become an O / W type liquid crystal emulsion type silicon processing agent for fiber processing.

(Manufacture of silicon oil finishing agent for O / W liquid crystal emulsified fiber)
5 parts of sorbitol (B), 10 parts of polyoxyethylene secondary alcohol ether (C), 1.2 parts of alkyl sulfate sodium salt (D), 0.2 part of 90% acetic acid, about the same amount as B to E Add water or hot water to make a liquid crystal, add 30 parts of amino-modified silicone oil (A) in small portions to make a W / O type emulsion, and add water or hot water to the emulsion. An O / W liquid crystal emulsified fiber processed silicon product was produced.

(Processing method for fiber fabric using the above-mentioned processing agent)
Exactly the same as Example 1 except that the silicon processing agent for liquid crystal emulsification type fiber of the present example was used instead of the silicon processing agent for liquid crystal emulsification type fiber of the present invention used in Example 1. In the same manner as in Example 1, it was possible to obtain a wool fabric having a soft texture with a feeling of swelling and a core of the fabric of the present invention.

(Manufacture of silicon oil finishing agent for O / W liquid crystal emulsified fiber)
4 parts of oligosaccharide alkoolyl (B), 1.4. 1 part of butanediol (B), 10 parts of polyoxyalkylene tridecyl ether (C), 1.2 parts of alkyl sulfate sodium salt (D), 0.1 part of malic acid, the same amount as B to E About 30 parts of polyether-modified silicone oil (A) is added little by little, W / O makes another emulsion, and water or hot water is added to the emulsion. In addition, an O / W type liquid crystal emulsification type silicon processing agent for fibers was manufactured.

(Processing method for fiber fabric using the above-mentioned processing agent)
Except that the processing agent was used and the silicon processing agent for liquid crystal emulsification type fiber of the present invention used in Example 2 was replaced with the silicon processing agent for liquid crystal emulsification type fiber of the present invention. In the same manner as in Example 2, it was possible to obtain a wool fabric having a soft texture with a feeling of swelling and a core of the fabric of the present invention.

Claims (5)

Liquid crystalline emulsion processing agent for fibers comprising polar silicone oil (A), water-soluble polyhydric alcohol (B), nonionic surfactant (C) and / or anionic surfactant (D) as main components And the textiles which this liquid crystal emulsification type processing agent for fibers adheres. 2. The liquid crystal emulsification type processing agent for fibers according to claim 1, wherein the polar silicone oil (A) is at least one of amino-modified silicone oil, polyether-modified silicone oil, methylhydrogenpolysiloxane, and epoxy / polyether silicone oil. And a fiber product to which the liquid crystal emulsifying type processing agent for fibers is attached. Water-soluble polyhydric alcohol (B) is 1.3. Butanediol, 1.4. The liquid crystal emulsion processing agent for fibers according to claim 1 or 2, which is at least one of butanediol, polyoxyethylene polyoxypropylene block polymer (pluronic nonionic surfactant), and oligosaccharide alcohol, and the fiber Textile product with liquid crystal emulsification type processing agent attached. Nonionic surfactant (C) is polyoxyethylene lauryl ether, polyoxyethylene secondary alcohol ether, polyoxyethylene isodecyl ether,
The fiber product obtained by adhering the liquid crystal emulsion processing agent for fibers and the liquid crystal emulsion processing agent for fibers according to claim 1, which is at least one of polyoxyalkylene tridecyl ethers. The anionic surfactant (D) is at least one of alkyl sulfate sodium salt, alkyl ether sulfate sodium salt, polyoxyethylene lauryl ether sodium sulfate, and polyoxyethylene alkyl ether sodium sulfate. A liquid crystal emulsification type processing agent for fibers as described above and a fiber product to which the liquid crystal emulsification type processing agent for fibers is attached.