JP2002220782A - Flameproof-finishing for textile product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a textile product excellent in flameproofness, light resistance, heat resistance and a touch feeling, without using any halogen flameproofing agent. SOLUTION: This flameproof textile product is obtained by treating the corresponding original textile product with a finishing liquid prepared by incorporating 100 pts.wt., on a solid basis, of a halogen-free synthetic resin emulsion or solution with 5-100 pts.wt. of at least one water-insoluble or sparingly water- soluble condensed phosphoric acid compound selected from condensed ammonium phosphate, condensed melamine phosphate and condensed amidoamonium phosphate having a particle size of <=50 μm so at to make sticking on the original textile at 3-100 wt.% on a solid basis.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flameproofing method for interior textile products.

[0002]

2. Description of the Related Art In recent years, many fibers have been used for interior materials and filters for automobiles, aircrafts, railways, buildings, and the like, and the types of fiber materials are synthetic, such as polyester, nylon, acrylonitrile, and polypropylene. Fiber, rayon, cotton, cellulosic fiber such as hemp, or wool, silk,
Animal fibers such as feathers are used alone or in a composite state. Fiber products using these materials have a drawback that they are easily burned, and therefore, are required to have flameproof performance. Typical examples of the flameproofing process include a method of directly attaching a flameproofing agent to a fiber product, and a method of adding a flameproofing agent to various synthetic fiber binders and attaching the same as a flameproofing binder. In particular, in the latter flameproofing method, not only the flameproofing of the fiber but also the flameproofing of the synthetic resin binder used together is necessary. Conventionally, a combination of a halogen compound and an acid value antimony has been used as a flame retardant. However, in recent years, there has been an increasing demand for flame prevention without using halogen from the viewpoint of environmental protection and the harmfulness of gas generated during combustion. As non-halogen flame retardants,
Numerous flame retardants such as ammonium phosphate, ammonium sulfamate, ammonium sulfate, borax, boric acid, aluminum hydroxide, magnesium hydroxide, and phosphate esters are known.

[0003]

However, when an amount necessary for exhibiting the flameproofing effect is added, the water-soluble flameproofing agent causes the synthetic resin emulsion to thicken or break (gum-up), or to cause the resin film to have a thickened state. However, there are problems such as a decrease in strength, heat resistance, and texture. For this reason, a flameproofing method having sufficient flameproofness and various physical properties without using a halogen-based flameproofing agent has not been provided, and its development has been demanded.

[0004]

Means for Solving the Problems The present inventors have conducted intensive studies to solve these problems, and as a result, the interior using a condensed phosphoric acid compound which is insoluble or hardly soluble in water and a synthetic resin binder in combination. Of a flameproofing method for textile products. The present invention relates to a halogen-free synthetic resin emulsion or 100 parts by weight (solid content) of a synthetic resin emulsion which is insoluble or hardly soluble in water and has a particle size of 50 μm or less, condensed ammonium phosphate, melamine phosphate, A process liquid obtained by mixing 5 to 100 parts by weight of one or more condensed phosphoric acid compounds selected from condensed amidoammonium phosphates is adhered to a fiber product at a solid content of 3 to 100%. This is a flameproofing method for interior fiber products.

Examples of the halogen-free synthetic resin used in the present invention include polyacrylates, polymethacrylates, acrylates and / or methacrylates and halogen-free vinyl monomers or olefin monomers. And other olefin-based monomers, polymers of vinyl-based monomers, copolymers, or mixtures thereof, polyurethane, polyvinyl acetate, ethylene-vinyl acetate copolymer, polyester, SBR (styrene butadiene rubber), and the like. .

The average particle size of the condensed ammonium phosphate, melamine phosphate and condensed amidoammonium phosphate (hereinafter referred to as condensed phosphoric acid compound) which are insoluble or hardly soluble in water used in the present invention is 50 μm or less, preferably 10 μm.
It is as follows. These condensed phosphoric acid compounds may be coated or microencapsulated with a resin or the like.

In practicing the present invention, a flameproofing solution is prepared by mixing a condensed phosphoric acid compound with a halogen-free synthetic resin emulsion. An aqueous dispersion of the condensed phosphoric acid compound may be prepared in advance and mixed with a synthetic resin emulsion to prepare a flameproofing solution. When mixing a phosphate compound with a synthetic resin emulsion or water, a dispersant or a surfactant can be used as necessary. The mixing ratio of the condensed phosphoric acid compound to 100 parts by weight of the solid content of the synthetic resin emulsion containing no halogen is 5%.
-100 parts by weight, preferably 10-100 parts by weight, particularly preferably 20-100 parts by weight. When the amount of the condensed phosphoric acid compound is less than 5 parts by weight, the flameproofing effect is not sufficient, and when the amount is more than 100 parts by weight, the formation of a resin film is deteriorated and the quality of a fiber product is deteriorated.

When the condensed phosphoric acid compound precipitates, a thickener such as sodium polyacrylate, CMC, H
When the viscosity is adjusted by adding EC, poval, or the like, a uniform processing liquid can be obtained. Flameproofing fluids include antibacterial / insect repellents, antistatic agents, lightfastness improvers, heat resistance improvers, crosslinkers, colorants, defoamers, inorganic compounds (aluminum hydroxide, magnesium hydroxide, calcium carbonate , Red phosphorus, expanded graphite, clay, mica, other fillers), other halogen-free flame retardants, flame retardant aids, and various auxiliary agents.

Next, the fiber product is subjected to flameproofing using the processing liquid. Representative examples of interior textile products include curtains, carpets, carpets, artificial turf, wall coverings, upholstery, car seats, car mats, air filters, and the like. A processing liquid is adhered to these fiber products at 3 to 100%, preferably 7 to 70%, particularly preferably 15 to 70% of the solid content. If the solid content of the processing liquid is less than 3%, the flameproofing effect is insufficient, and if it is more than 100%, the quality of the fiber product deteriorates, which is not preferable. Processing methods include the conventional immersion method, processing by spraying,
Brushing A coating method is used. Hereinafter, the present invention will be described with reference to examples, but the technical scope of the present invention is not limited thereto. Parts and% mean parts by weight and% by weight, respectively.

[0010]

Example 1 A car seat cloth for an automobile interior was coated with the following processing liquid, and then subjected to an FMVSS-302 method evaluation and various physical properties tests. (Test cloth): 100% polyester woven car sheet cloth (300 g / m ² basis weight) (Working liquid): 100 parts of a polyacrylate emulsion having a solid content of 45%, 1.5 parts of a nonionic surfactant, and polyacrylic acid 1 part thickening agent and 25% aqueous ammonia
Add 5 parts and stir with micro-epsilated ammonium polyphosphate (average particle size 10 μm, Chisso,
30 parts of trade name Terage C-60) were added. For comparison, instead of ammonium polyphosphate, trisdichloropropyl phosphate (Comparative 1, No. 2), a mixture of 75% decabromodiphenyl ether and 25% antimony trioxide (Comparative 2, No. 3) and ammonium polyphosphate (average particle size 100 μm) (Comparative 2, No. 4) was used. (Treatment method): Coating was performed by a doctor knife method. The solid content of the working fluid was 100 g / m ² . Drying is pre-drying at 80 ° C for 5 minutes, and curing is 1
One minute at 50 ° C. (Test method): The flame resistance was measured by the FMVSS-302 method.
NB indicates self-extinguishing below the mark, and SE indicates self-extinguishing within 60 seconds and within 5 cm beyond the mark. The light resistance was determined by using a fade meter to determine the degree of discoloration after irradiation at 83 ° C. × 200 hours, and the heat resistance was determined by measuring the degree of discoloration after treatment at 150 ° C. × 60 minutes in a gear oven drier. The texture was judged based on the feeling touched by hand. (Test results): Table 1 shows the flame resistance, and Table 2 shows the physical properties. In addition, the thing whose combustion rate exceeds 10 cm / min is rejected.

[0011]

[Table 1]

[0012]

[Table 2]

Example 2 The side fabric of the upholstered furniture was coated with the following processing liquid, and then subjected to a 45 ° air mix wire mesh method evaluation and various physical properties tests. (Temperature cloth): Commercial polyester jersey (140 g / basis weight)
m ² ) (Working fluid): Condensed melamine phosphate (average particle size 3
0 μm, manufactured by Sumitomo Chemical Co., Ltd., trade name: Sumisafe PM) 10
Parts, condensed ammonium amidophosphate (average particle size 32μ)
m, manufactured by Taihei Chemical Co., Ltd .: 30 parts of Thaien S) and 5 parts of a carboxymethyl cellulose thickener (70% aqueous solution) were added with stirring. As Comparative 4 (No. 6), a mixed solution of zinc borate 60% and aluminum hydroxide 40% was used. (Treatment method): Same as in Example 1 (Test method): The flame resistance was determined by measuring the carbonization length by the 45 ° air mix burner wire mesh method of the firefighting method. If the maximum carbonization length is 7 cm or less and the average value is 5 cm or less, the flame resistance is passed. Light resistance, heat resistance, and texture were the same as in Example 1. In addition, unprocessed cloth, the present invention (No. 5) and Comparative Example 4
In all of (No. 6), the light resistance was grade 4 and the heat resistance was ○. The texture was determined to be good for the unprocessed cloth and the present invention (No. 5), and slightly hard in Comparative Example 4 (No. 6).

[0014]

[Table 3]

Example 3 A ventilation fan filter was spray-processed with the following processing liquid, and then subjected to JIS-L1091-A-1 method evaluation and physical properties test. (Test cloth): 100% polyester non-woven fabric (50 g / m ² basis weight) (Working liquid): 1.5 parts of a nonionic surfactant was added to 100 parts of a polyacrylate emulsion having a solid content of 45% to form microcapsules. 45 parts of ammonium polyphosphate (average particle size: 10 μm, manufactured by Chisso Corporation, trade name: Terage C-60) and 120 parts of water were added with stirring.
For comparison, aluminum hydroxide and ammonium polyphosphate having an average particle size of 100 μm were used in place of the microencapsulated ammonium polyphosphate (average particle size of 10 μm). (Treatment method): Processing was performed by a spray method and an immersion method. In the spray method, the solid content of the working fluid is 20 g / side.
m ^2, and 40 g / m ^{2 on} both sides adhered. In the immersion method,
The wet pick up was set to 200%. The pre-drying was performed at 80 ° C. for 5 minutes, and the curing was performed at 150 ° C. for 1 minute.

(Test method): Flameproofness was measured according to JIS-L10
Performed by the 91-A-1 method. The texture was the same as in Example 1. (Test result): The processed product obtained by the present invention had a residual flame of 0 second, a residual dust of 0 second, a carbonized area of 4.9 cm, and a 45-degree coil method four times in both the spray method and the immersion method.
According to the JIS-L1091-A-1 method, 3 seconds or more of residual flame, 5 seconds of residual dust, 30 cm of carbonized area, and 3 times or more pass in the 45 degree coil method. On the other hand, the processed product treated with the processing solution in place of aluminum hydroxide did not show flame resistance in both the spray method and the dipping method. In addition, when a processing solution was used in place of ammonium polyphosphate having an average particle size of 100 μm, the spray method blocked the spray and could not be processed. In the immersion method, the working liquid settled violently and did not adhere uniformly. For this reason, the flame resistance of the immersion processed product was insufficient.

[0017]

According to the method of the present invention, the interior fiber product can be subjected to flameproofing without using a halogen-based flameproofing agent. In addition, the fiber product obtained by the method of the present invention does not deteriorate in light resistance, heat resistance and texture.

Claims (1)

[Claims] 1. Condensed ammonium phosphate or melamine phosphate having a particle diameter of 50 μm or less in water-insoluble or hardly soluble in 100 parts by weight (solid content) of a synthetic resin emulsion or a synthetic resin solution containing no halogen. A processing liquid obtained by mixing 5 to 100 parts by weight of one or more condensed phosphoric acid compounds selected from condensed amidoammonium phosphates is adhered to a fiber product at a solid content of 3 to 100%. Flameproofing method for interior textile products.