JPH11279946A - Production of base fabric for shower curtain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a base fabric used for shower curtains, scarcely generating a poisonous gas on incineration and having excellent washing durability, antimicrobial property and aesthetic property by treating a specific fabric with a halogenated cycloalkane-based flameproof agent and subsequently adhering an organic fluorinated polymer-based water repellent, etc., to the treated fabric. SOLUTION: This method for producing a base fabric for shower curtains comprises treating a fabric comprising flame-resistant polyester fibers containing a phosphorous compound such as 2-carboxyethylmethyl phosphinate acid with a halogenated cycloalkane-based flameproof agent, and subsequently adhering an organic fluoropolymer-based water repellent, an antibacterial agent such as an antibacterial agent containing an aminosaccharide-based aminoglycoside of the formula (R is H, an aliphatic group or an aromatic group) and/or an antifungal agent such as benzimidazole-based antifungal agent to the treated fabric through a heat-meltable polyurethane resin.

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 a fabric for a shower curtain, and more particularly, to a polyester fiber satisfying a wide variety of functions of flameproofing, water-repelling, antibacterial and antifungal properties. The present invention relates to a method for manufacturing a base fabric for a shower curtain.

[0002]

2. Description of the Related Art Conventionally, articles such as curtains, rugs, plywood and the like used in buildings subject to fire prevention regulations, such as hotels, inns, and hospitals, are regulated by the Fire Defense Law. In order to use these products, it is necessary to clear the regulations for flameproofing.

[0003] Among these flame-retardant-regulated articles, shower sheets for hotels and the like have conventionally used many sheets made of polyvinyl chloride. However, such shower curtains made of polyvinyl chloride have a large amount of chloride when discarded or incinerated. There is a problem that toxic gas such as hydrogen gas and dioxin is generated to cause environmental pollution. In addition, from the viewpoint of upgrading the shower curtain, materials other than vinyl chloride are recently required.

In place of the vinyl chloride shower curtain, a polyester fiber having excellent properties such as heat resistance, dimensional stability, and color fastness is used, and a polyester fiber having flame retardancy is used. The development of shower curtains is under consideration.

[0005] As a method of flame retarding polyester fibers, for example, as disclosed in Japanese Patent Publication No. 53-13479, a flame retardant containing phosphorus or halogen is added in a polymerization step. A method of flame retarding a material to be copolymerized, and a method of post-processing in which, for example, as disclosed in JP-A-59-23651, a molding is treated with an aqueous dispersion of a flame retardant containing phosphorus or halogen after molding. Etc. In any of these methods, polyester is made flame-retardant by improving the melting properties of polyester fibers.

In addition, shower curtains are required to have a property of repelling water, that is, satisfying water repellency.
Conventionally, a water-repellent processing method using a paraffin-based, zirconium-based, or fluorine-based water-repellent has been known.

Further, shower curtains having antibacterial properties and antifungal properties are required. As a method for imparting antibacterial properties, for example, a method of kneading ceramic-based fine particles such as zeolite supporting a metal such as silver or copper or a layered compound of a phosphate type with a fiber-forming polymer and spinning the mixture is disclosed in
A post-processing method using an organic antibacterial agent such as an organic silicone quaternary ammonium salt, an alkyl phosphate quaternary ammonium salt, or an aromatic halogen compound is known.

As a method of imparting antifungal properties, post-processing methods using organometallic, imidazole, and phenolic antifungal agents are known. There are disadvantages in that the melting properties of the flame-retardant polyester fibers are impaired, the flame resistance is significantly reduced, and the washing durability of the various functions provided is poor.

In order to solve such a problem, for example,
JP-A-61-245378 discloses a method for providing a reaction product of an acidic group-containing polyester copolymer and an antibacterial component, and JP-A-7-310284 discloses a method for providing an antibacterial component and a melamine compound. And Japanese Patent Laid-Open No. 7-14
5562 and JP-A-8-260351 disclose a method of treating with a mixture of a phosphorus compound and a water repellent, and the like. At the same time, it is extremely difficult to simultaneously provide water repellency, antibacterial properties, and antifungal properties that are excellent in flame resistance and washing durability.

[0010]

DISCLOSURE OF THE INVENTION The present invention is characterized in that it has both good flame resistance and excellent water repellency, antibacterial properties and antifungal properties excellent in washing durability, and generates very little toxic gas when incinerated. Another object of the present invention is to provide a base fabric for shower curtain made of polyester fiber which is excellent in aesthetics unlike conventional vinyl chloride materials.

[0011]

SUMMARY OF THE INVENTION According to the present invention, a fabric comprising flame-retardant polyester fibers containing a phosphorus compound is treated with a halogenated cycloalkane-based flame retardant, and then the fabric is treated with a heat-meltable polyurethane resin. A method for producing a fabric for a shower curtain, comprising fixing an organic fluorinated polymer-based water repellent, an antibacterial agent and / or a fungicide through the method, wherein the antibacterial agent is represented by the following general formula (1): It is preferable to use an antibacterial agent having the amino sugar-based aminoglycoside shown as a main component, and to use a benzimidazole-based compound as the antifungal agent.

[0012]

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[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.
The flame-retardant polyester fiber used in the present invention is obtained by adding a compound represented by the following general formula (2) or (3) to a phosphorus element amount of 0.3 to 1.5% by weight based on the weight of the polymer. A flame-retardant polyester fiber copolymerized as follows.

[0014]

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(However, R is a saturated, open-chain or cyclic alkylene, arylene or aralkylene residue represented by R ₁
Means an alkyl, aryl or aralkyl group having up to 6 C atoms. Also, residues R and / or R ₁
Is one or more heteroatoms, especially F, Cl,
B, O and S may be contained. R ₂ and R _{3 each} have 1 to 1 carbon atoms.
18 represents an alkyl group, an aryl group, or a hydrogen atom. )

[0016]

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(However, R and R ₁ are the same or different groups and are a hydrogen atom, a halogen atom or a hydrocarbon group having 6 or less carbon atoms, R ₂ and R ₃ are the same or different groups and are a hydrogen atom and a carbon atom 7 the following hydrocarbon groups, or (-R ₄ OH) .R ₄ showing a group represented by rH an ethylene group, a propylene group, or butylene group, r is an integer of 1 to 10, l, m is 0, or 1
Integer of ４4, n is 0, 1 or 2. )

Specific examples of the phosphorus compound represented by the general formula (2) include, for example, 2-carboxy-ethyl-methyl-phosphinic acid and its cyclic anhydride represented by the following general formula (4). .

[0019]

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The above-mentioned phosphorus compound must be copolymerized so that the amount of phosphorus element is 0.3 to 1.5% by weight based on the weight of the polymer. If the amount of phosphorus element is less than 0.3% by weight, a sufficient flameproofing effect cannot be obtained. If the content exceeds 1.5% by weight, the polymer is colored, and physical properties such as strength, heat resistance, and color fastness deteriorate.

The halogenated cycloalkane compound as a flame retardant used in the present invention refers to a cyclic saturated hydrocarbon or a saturated hydrocarbon compound having at least one cyclic saturated hydrocarbon in which at least a part of the hydrogen atoms of the compound is halogen. Is a compound substituted by

Specific examples of such compounds include, for example,
1,2,3,4,5,6 hexabromocyclohexane,
1,2,3,4 or 1,2,4,6 tetrabromocyclooctane or 1,2,5,6,9,10 hexabromocyclododecane, 1,2 bis (3,4 dibromocyclohexyl) ) 1,2 dibromoethane and those obtained by replacing bromine with chlorine.

Among these compounds, those in which halogen is bromine have high exhaustion efficiency and flame resistance and are suitable for the present invention. In particular, 1,2,5,6,9,10 hexabromocyclododecane has high exhaustion efficiency and excellent flame resistance. Such a halogenated cycloalkane compound is used as a dispersion-based flame retardant composition, and is particularly preferably used as an aqueous dispersion-based flame retardant composition.

The amount of the halogenated cycloalkane compound to be applied is preferably in the range of 0.5 to 5% owf. If the applied amount is less than 0.5% owf, the flame resistance becomes poor, and if it exceeds 5% owf, the texture hardens and the light resistance decreases, which is not preferable.

In the present invention, after treating a fabric composed of the above flame-retardant polyester fibers with a halogenated cycloalkane flame retardant, an organic fluorinated polymer-based water repellent is interposed via a hot-melt polyurethane resin. , An antibacterial agent and / or an antifungal agent.

Here, "treat" refers to, for example, immersing the above-mentioned cloth in an aqueous dispersion of a halogenated cycloalkane-based flame retardant, and applying the surface of the flame-retardant polyester fiber by a pad-dry-curing method or the like. Refers to attaching a flame retardant to the surface.

The hot-melt polyurethane resin used as a binder in the present invention is a resin having a urethane bond in its main chain.
It has a urea bond and an acid amide bond, and particularly has a bifunctional compound such as polyoxyalkylene glycol or polyester glycol having a molecular weight of 500 to 6000 and a difunctional compound such as diphenylmethane diisocyanate or tolylene diisocyanate having a molecular weight of 500 or less. A linear polyurethane obtained by reacting a prepolymer obtained by excessively reacting a functional organic diisocyanate compound with a chain extender having a molecular weight of 500 or less, such as diamine, diol, amino alcohol, or hydrazine, is preferable.

In the present invention, a one-component polyurethane having no free isocyanate group, that is, having no cross-linking, is particularly preferred. Specific examples of such a linear polyurethane resin include Hydran HW-111 (manufactured by Dainippon Ink Co., Ltd.) and Superflex E-4.
500 (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.). It should be noted that a water-soluble or water-dispersible polyurethane resin is advantageous from an industrial and working environment perspective.

The amount of the hot-melt polyurethane resin applied is:
It is 0.2 to 3% by weight, preferably 0.3 to 1.0% by weight. If the applied amount is less than 0.2% by weight, the washing durability of the functional agent becomes poor, and if the applied amount exceeds 3% by weight, the functional agent is buried in the polyurethane resin to lower the functionality. It is not preferable because it causes deterioration of flame resistance and hardening of texture. Further, in order to further increase the washing durability of the functional agent, it is desirable to use a small amount of a blocked isocyanate-based cross-linking agent that does not lower the flame resistance.

Next, as the organic fluorinated polymer-based water repellent, a polymer formed from a (meth) acrylate having a perfluoroalkyl group or a polyfluoroalkyl group, and a vinyl ester, a vinyl ether or an acrylamide with these monomers. And a copolymer with a monomer having no perfluoroalkyl group or polyfluoroalkyl group such as aliphatic isocyanate. Above all,
A copolymer water repellent of a perfluoroalkyl methacrylate and an aliphatic isocyanate is preferred from the viewpoint of flame retardancy.

The antibacterial agent used in the present invention is preferably exemplified by those having an aminoglycoside as a main component. The aminoglycoside is a monosaccharide, double sugar or polysaccharide glycoside of amino sugar. Say. Specific examples of the aminoglycoside include ST-8 and ST845 of Biomaterials Inc.

The amount of the aminoglycoside to be applied is 0.01 to
Those used in the range of 0.2% owf are preferable, and those used in the range of 0.02 to 0.15% owf are more preferable. The amount of the antibacterial agent applied is 0.01% ow.
If it is less than f, the antibacterial property is not sufficient, and 0.2% ow
If it exceeds f, the flameproofing property is lowered and the texture is hardened, which is not preferable.

Next, the fungicides used in the present invention include:
Benzimidazole, thiabendazole (TBZ),
Zinc pyrithione (ZPT) and the like are exemplified, and benzimidazoles are particularly preferred from the viewpoint of safety and prevention of deterioration of flame resistance.

The water-repellent agent, the antibacterial agent and the antifungal agent are applied by applying a predetermined amount to a flame-retardant polyester fiber fabric prepared in advance by a method such as a spray method, a dipping method, and a gravure method. In any of the methods, after applying a liquid mixture containing a water repellent, an antibacterial agent, a fungicide and a hot-melt polyurethane resin to a flame-retardant polyester fiber cloth, drying at a temperature of 100 to 130 ° C., and further heating 140-1
Heat treatment at 80 ° C. to fix. In addition, as long as the flameproofing property is not reduced as necessary, a water absorbing agent, an antistatic agent,
It is also possible to use a softener and a hard finish in combination.

[0035]

After treating the flame-retardant polyester fiber fabric with the halogenated cycloalkane-based flame retardant,
By imparting a water repellent, an antibacterial agent and a fungicide via a hot-melt polyurethane resin, it is possible to simultaneously impart good water repellency, antibacterial properties and antifungal properties with good washing durability, which could not be obtained conventionally. it can. In this way, flameproof and water repellent,
It is not clear why antibacterial and antifungal properties can be compatible,
In addition to flame-retardant polyester fibers containing phosphorus compounds,
By exhausting the halogen-based flame retardant by a post-processing method, the synergistic effect of phosphorus and halogen dramatically improves the flame resistance and repels via a urethane-based binder resin with excellent heat-melting properties. It is presumed that, since the liquid agent, the antibacterial agent, and the fungicide were fixed, the decrease in the thermal fusibility of the flame-retardant polyester fiber was reduced, and each function was sufficiently exhibited.

[0036]

Next, the present invention will be described in more detail with reference to examples. In addition, all the parts in an Example show a weight part,
The evaluation of each characteristic was based on the following measuring methods. (1) Flameproofness According to the D method of JIS L1091. (2) Water repellency According to the D method (spray method) of JIS L1091.

(3) Antibacterial activity The antibacterial activity is carried out in accordance with the method for measuring the number of bacteria by the test method of the Textile Sanitary Processing Council. That is, a bouillon suspension of a test bacterium (Staphylococcus aureus) was poured into a sterilized test cloth, and the number of viable cells after culturing at 37 ° C. for 18 hours in a closed container was counted. The difference is determined by the following equation. Increase / decrease value difference = LogB / A-LogC / A where A: number of bacteria immediately after inoculation of the unprocessed sample B: number of bacteria after 18 hours of culturing in the unprocessed sample C: cultivation of 18 hours in the processed sample Number of bacteria after the test If the growth of the bacteria on the unprocessed cloth is LogB / A> 2, the test result is valid, and a sample in which the difference between the increase and decrease of the antibacterial processed cloth to the unprocessed cloth is 1.6 or more is judged to be acceptable. . In addition, washing is repeatedly performed 10 times according to JIS L-0217103 method.

(4) Fungicidal activity This is carried out according to JIS L-0217 # 103 method. The effect was determined based on the mold resistance test of JISL-2911. A test cloth having no growth of mold on a test cloth of judgment grade "3" was judged to be acceptable.

Examples 1-4 Flame-retardant polyester filaments (75 denier / 24) copolymerized with 0.65% of 2-carboxy-ethyl-methyl-phosphinic acid as phosphorus.
Taffeta (warp density: 110 / 2.54 cm, weft density: 100%) using warp and weft at 100%
90 / 2.54cm), and after scouring, YM88
(45% aqueous dispersion of hexabromocyclododecane manufactured by Daiichi Kogyo Seiyaku Co., Ltd.): 10% owf is used, and Sumicaron Navy Blue S2GL (Sumitomo Chemical Co., Ltd., disperse dye): 0.5% owf , Disper VG (manufactured by Meisei Chemical,
Dispersant): 0.5 cc / liter, acetic acid: 0.3 cc /
Liter, bath ratio: 1:15, temperature at 130 ° C, 30
After treatment for 1 minute, the mixture was padded with the composition shown in Table 1 (squeezing ratio: 40%), and dried at a temperature of 100 ° C. for 10 minutes.
Heat treatment was performed at a temperature of 180 ° C. for 1 minute.

The water repellent, antibacterial agent, fungicide, and hot-melt urethane resin adhesion amount of the obtained work cloth and the performance of the work cloth are also shown in Table 1.

[0041]

[Table 1]

[Comparative Examples 1 to 4] Pads were prepared in the same manner as in Example 1, except that the YM88 used for dyeing was not used. (Drawing ratio: 40%), temperature 100 ° C
And then heat-treated at 180 ° C. for 1 minute. The water-repellent agent, antibacterial agent, antifungal agent, and adhesion amount of the hot-melt urethane resin of the obtained work cloth and the performance of the work cloth are also shown in Table 2.

[0043]

[Table 2]

[0044]

According to the present invention, excellent aesthetics, good flame resistance, water repellency, antibacterial properties, and antifungal properties with good washing durability are simultaneously obtained, and extremely little toxic gas is generated during incineration. A polyester fiber shower curtain is obtained.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI D06M 13/08 D06M 13/08 13/352 13/352 15/564 15/564 // D06M 101: 32

Claims (3)

[Claims] 1. After treating a fabric composed of flame-retardant polyester fibers containing a phosphorus compound with a halogenated cycloalkane flame retardant, the fabric is treated with an organic fluorinated polymer resin via a hot-melt polyurethane resin. A method for producing a base fabric for a shower curtain, comprising fixing a water repellent, an antibacterial agent and / or a fungicide. 2. The method for producing a base fabric for a shower curtain according to claim 1, wherein the antibacterial agent is an antibacterial agent containing an amino sugar aminoglycoside represented by the following formula (1) as a main component. Embedded image 3. The method for producing a base fabric for a shower curtain according to claim 1, wherein the fungicide is a benzimidazole-based fungicide.