JPH0921076A - Production of deodorizing fiber - Google Patents

Abstract

PURPOSE: To carry out the printing processing of a prescribed pattern without deteriorating deodorizing properties by printing a fabric comprising deodorizing fibers with a pigment. CONSTITUTION: Acrylic fibers are wet spun and then dipped in an aqueous solution of a compound having amino group such as polyallylamine before drying thereof to afford deodorizing fibers containing the polyallylamine in a state thereof embedded in the interior of the fiber. A spun yarn containing the resultant deodorizing fibers is used to weave a plain woven fabric, which is then printed with a color paste containing a pigment and a polyacrylic ester, etc., as a binder and subsequently heat-treated to provide a printed product.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing deodorant fibers, and more particularly to a method for printing deodorant fibers having a deodorizing function by chemical adsorption without deteriorating deodorizing performance. It is a thing.

[0002]

2. Description of the Related Art In recent years, there has been an increasing interest in comfort in living environments, and various proposals have been made regarding the removal of offensive odors present in rooms, refrigerators, vehicles and various environments. In particular, deodorization of cigarette odors in offices, homes, and automobiles has been highlighted as the smoking cessation movement has become popular.

Deodorant fiber products are generally printed in many cases, but deodorant fibers having a deodorizing function by chemical adsorption have a problem that the deodorizing performance is significantly impaired by printing, and the product development is limited. It was

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problem that the deodorizing performance is remarkably impaired by printing, and to provide a method for printing a deodorant fiber without lowering the deodorizing performance. To do.

[0005]

That is, the invention of the present application is
It is as follows. A method for producing a deodorant fiber, which comprises printing a deodorant fiber having a deodorant function by chemical adsorption, using a pigment. In the present invention, examples of the deodorant fiber having a deodorizing function by chemical adsorption include a fiber containing a compound having an amino group, a fiber having a carboxyl group, and a fiber having a transition metal added to the carboxyl group.

Examples of the compound having an amino group contained in the deodorant fiber having a deodorizing function by chemical adsorption used in the present invention include, for example, sulfanilic acid and aminosilicate, but a compound having an amino group having two or more functional groups. Are preferred, for example hydroxyamine sulfate, ethylenediamine,
Diaminopropylamine and the like can be mentioned. Particularly preferably, a polymer compound having a bifunctional or higher amino group is preferable, and one or more of polyethyleneimine, polyallylamine, amine-modified acrylic polymer and chitosan may be mentioned.
You.

As the transition metal in the deodorant fiber in which a transition metal is added to the carboxyl group, any transition metal may be used as long as it has a coordination bond, but it has many deodorant species and high deodorant performance. Copper, zinc, cobalt, nickel, etc. are used for the reason. Copper is particularly preferably used. The deodorant fiber used in the method for producing the deodorant fiber of the present invention is a fiber having a deodorant function other than chemical adsorption such as physical adsorption or chemical decomposition in addition to the deodorant function by chemical adsorption, or a combination thereof. But it doesn't matter.

The deodorant fiber in the present invention may be any fiber as long as it has a deodorizing function by chemical adsorption. Further, it may be a combination of deodorant fibers and ordinary fibers, or a combination of two or more kinds of deodorant fibers. The ordinary fibers are, for example, natural fibers such as cotton, silk and wool, regenerated fibers such as cupra and rayon, synthetic fibers such as acrylic, polyester, nylon and acetate, and any fibers may be used. As a method of this combination, any method such as mixed spinning, mixed weaving, mixed knitting, mixed twisting, and mixed fiber may be used.

The deodorant fiber having a deodorizing function by chemical adsorption used in the present invention is not particularly limited, but after being immersed in a water bath in which a compound containing an anion group or a cation group is dissolved or emulsified, mangle, Preferred are those produced by a method of adjusting the attachment rate by centrifugal dehydration or the like, and a method of spinning a raw material solution containing a compound containing an anion group or a cation group when spinning a fiber.

The method for producing the deodorant fiber of the present invention is the former method of immersing in a dissolved or emulsified water bath, in particular the fiber produced by wet spinning, which contains a compound containing a cationic group. In particular, it is effective for deodorant fiber in which a compound having an amino group is contained in the fiber. More preferably, it is particularly effective when applied to a deodorant fiber having a deodorant function at the polymer stage and the raw yarn raw cotton manufacturing stage, not after processing to a fiber yarn or a fiber cloth.

The method for producing the deodorant fiber of the present invention has been proposed by the present applicant in Japanese Patent Application No. 6-154533, and in particular, a compound containing a malodorous carbonyl group such as acetaldehyde or an acidic compound is used. Especially desirable results are obtained when applied to deodorant fibers that are effective for. The deodorant fiber proposed in Japanese Patent Application No. 6-154533 is a deodorant fiber in which an amino group is 0.03 to 10 mol / kg wet-heat bonded to a fiber containing 0.01 to 5 mol / kg of an acidic group per fiber. is there. The fiber containing an acidic group has an acidic group such as a carboxyl group and a sulfonic acid group, and is preferably an acrylic synthetic fiber, a modacrylic synthetic fiber, or a cellulosic fiber. In order to wet-bond the amino groups with each other, it is particularly preferable to wet-heat-treat the compound having an amino group attached to the undried yarn at the production stage of the acrylic synthetic fiber or modacrylic synthetic fiber. Those imparted to the undried yarn immediately after spinning are particularly preferable because of high washing durability and dyeing durability.

Further, an anion group or a cation group may be introduced into the molecular chain constituting the fiber. The method of introduction is not particularly limited, but examples thereof include copolymerization and graft polymerization. Further, in the method for producing the deodorant fiber of the present invention, the deodorant fiber having an anion group and the deodorant fiber having a cation group may be mixed and used. It is particularly preferable to apply the deodorant fiber proposed by the present applicant in Japanese Patent Application No. 6-157266 because of its high effect.

The deodorant fiber proposed in Japanese Patent Application No. 6-157266 mentioned above contains a polymer having an amino group content of 1 to 2 equivalents per unit of monomer and a polymerization degree of 6.5 to 2400 inside the fiber. Artificial fiber containing 0.1 to 10% owf in a buried state, and 0.2 to 10 equivalents / kg of anionic functional group or 0.1 to 5 equivalents of the anionic functional group.
It is a deodorant fiber obtained by mixing 2 kg of a transition metal and a fiber containing a transition metal salt bonded thereto. In the wet spinning, it is preferred that the amino group-containing polymer is embedded in the fiber by impregnation in a dip tank or the like before spinning and drying.

As the anionic functional group in the above mixed deodorant fiber, a carboxyl group and / or a sulfone group are preferable, and a carboxyl group is particularly preferable. The carboxyl group, for example, hydrolyzes acrylic fiber with alkali, copolymerizes or polymer blends a carboxyl group-containing polymer such as acrylic acid, and further after wet spinning,
It is preferable to immerse the polymer in an undried state in the aqueous solution of the polymer and dry it to contain it.

The transition metals in the above mixed deodorant fibers include copper and zinc, and the transition metal salts include copper compounds (CuSO ₄ , Cu (NO ₃ ) ₂ etc.) and zinc compounds (Z
nSO ₄ , Zn (NO ₃ ) _{2 and the} like) are preferable. A copper compound is particularly preferable because of its many deodorant species. The form of the deodorant fiber used in the present invention is not particularly limited, and may be any form such as cotton, spun yarn, filament, tow, sliver, non-woven fabric, knitted fabric, woven fabric, and sewn product. Although it does not matter, usually, a cloth or a sewn product thereof is often used as a printing form.

The pigment used in the method for producing the deodorant fiber of the present invention is generally a water-insoluble pigment, which may be either an organic pigment or an inorganic pigment, but from the viewpoint of color developability and fastness, it is an organic pigment. Is preferred. A fixing agent is used for printing the pigment, but the kind is not particularly limited in the method for producing the deodorant fiber of the present invention. For example, ethylcellulose, nitrocellulose, cellulose derivatives such as cellulose acetate, alkyd resins, urea resins, condensation resins such as melamine resins, polyacrylic acid esters, polyacrylamide derivatives, polyvinyl chloride, polyvinyl acetate,
Butadiene-acrylonitrile copolymer, styrene-butadiene copolymer and the like are used. Furthermore, it is preferable to use an emulsion together with the pigment and the fixing agent.
Polyacrylic acid ester is particularly preferable.

After printing the above-mentioned pigment and fixing agent, heat may be applied to solidify. The printing conditions such as temperature at this time are not particularly limited, but for example, the heat treatment temperature is preferably 90 ° C to 160 ° C, more preferably 100 ° C to 130 ° C. The heat treatment time is preferably about 1 to 5 minutes. More preferably, it is 1 minute to 2 minutes. Further, a crosslinking agent may be added for the purpose of improving fastness and the like.

The printed deodorant fiber obtained by the method of the present invention is used as a curtain (a light-shielding curtain such as deodorant fiber on one side or ordinary synthetic fiber such as polyester on one side, deodorant fiber on the intermediate layer). (Including a light-shielding curtain whose other surface is made of moped yarn containing carbon black, etc.), cushion, carpet, upholstery, partition, wallpaper, seat cover, doll, stuffed animal,
Textiles for goodwill, interior applications such as flowers with pots, car interiors such as car seats and linings, car applications such as car seat covers, clothing applications such as sweaters, jerseys and interlinings, as well as blankets and masks. , Clothes covers, night caps, bowl covers, duvet storage bags, packaging materials and the like.

[0019]

Next, the present invention will be described in more detail by way of examples. The methods for measuring the physical properties are as follows. (1) Deodorizing performance 1 g of a sample was put together with a malodorous component in a Tedlar bag having a capacity of 1000 ml, and the residual gas concentration after 60 minutes was measured with a Kitagawa gas detector tube. As the malodorous component, the concentration of acetaldehyde, acetic acid, and ammonia is 10
The content was adjusted to 0 ppm, was generated using a standard gas generator (manufactured by Gastec), and was collected in a 600 ml Tedlar bag.

[0020]

Example 1 Acrylic fibers were wet-spun, and before being dried, they were immersed in an aqueous solution of polyallylamine having a degree of polymerization of 1630 to obtain acrylic fibers containing polyallylamine embedded in 1% owf fibers. . A plain woven fabric of spun yarn obtained by mixing and spinning 80% of the obtained acrylic fiber and 20% of the acrylic fiber containing 2.0 equivalents / Kg of carboxyl groups was pigment-printed under the following conditions.

Printing conditions: Pigment; Pullux PM Blue PM-B (Sumitomo Chemical Co., Ltd.)
Sankosol 3S-40 and Sancosol GT-65 (manufactured by Sanko Shoji Co., Ltd., trade name) Heat treatment temperature: 110 ° C. Heat treatment time: 1 minute The printed matter obtained has a residual gas concentration of acetaldehyde. 1
The deodorizing performance was satisfied with 0 ppm, acetic acid 0 ppm, and ammonia 2 ppm.

[0022]

[Comparative Example 1] The same procedure as in Example 1 was carried out except that dye printing with a cationic dye was carried out under the following conditions instead of the pigment printing. Printing conditions Dye ； Aizen Cathilon Blue 3GLH (Hodogaya Chemical Co., Ltd., trade name) Acid ； Acetic acid (pH = 3.5) Steam treatment temperature ； 100 ℃ Steam treatment time ； 20 minutes Residual gas is obtained. Concentration is acetaldehyde 5
The deodorizing performance was insufficient at 8 ppm, acetic acid 39 ppm, and ammonia 11 ppm.

[0023]

According to the method for producing deodorant fiber of the present invention, the same printed matter as the conventional one can be obtained without deteriorating the deodorant performance.

Claims (1)

[Claims] 1. A method for producing a deodorant fiber, which comprises printing a deodorant fiber having a deodorizing function by chemical adsorption, using a pigment.