JPH02191775A - Non-dripping textile product - Google Patents

Abstract

PURPOSE:To obtain the subject textile product resistant to the melt-drip in combustion and suppressing the generation of toxic gas by forming a drip- preventing layer composed of a composition containing chloroprene rubber as essential component and added with an acid scavenger on the surface of a semi-synthetic fiber or synthetic fiber. CONSTITUTION:A semi-synthetic fiber or synthetic fiber is immersed in an organic solvent solution of a drip-preventing agent produced by adding an acid scavenger (e.g. zinc oxide or magnesium oxide) to a chloroprene rubber composition containing chloroprene rubber as an essential component. The fiber impregnated with the solution is dried with heat to obtain the objective non-dripping textile product having a drip-preventing layer. The textile product prevents the drip phenomenon and quickly absorbs hydrogen chloride gas and highly irritant acidic gases generated in combustion. The flame-retardancy can be further improved by adding a flame-retardant and antimony trioxide, etc., to the chloroprene rubber composition.

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention is directed to a drip ring* (dropping or flow) in which a product made of semi-synthetic fibers or synthetic fibers that heat melts during combustion and falls. This invention relates to a non-drip textile product that prevents falling objects from spreading fire to the surrounding area.

(1+) Conventional technology Methods for making AMV products made of semi-synthetic fibers or synthetic fibers flame retardant include: ■ adding reactive flame retardants such as chloroendoic acid to make them resistant to combustion; It has been proposed that flame retardants such as compounds are added to make the flame retardant less combustible, and flame retardants such as antimony dioxide are added to these to improve flame retardancy. .

Although it is possible to make semi-synthetic fibers or products made of synthetic fibers (hereinafter referred to as semi-synthetic fibers, etc.) flame retardant by such a method, it is possible to make semi-synthetic fibers or products made of synthetic fibers (hereinafter referred to as semi-synthetic fibers, etc.) flame retardant. However, it melts due to the heat and falls, and the heat of the falling melt burns the combustible material at the falling site, resulting in a fatal problem such as the spread of fire to the surrounding area.

Furthermore, in order to make the semi-synthetic fibers flame-retardant, it is necessary to add a large amount of flame retardant, but this can seriously impair the feel, appearance, strength, and flexibility of synthetic fiber products. be.

Therefore, 100 parts by weight of a dispersion or solution of an elastomer or a polymeric substance in terms of solid content and 2 parts of Niijima-based inorganic compound were added.
0 to 100 weight, or additionally pf 熾 M1 to 5 (
) It has been proposed to concentrate the fibers by attaching a treatment composition consisting of 10 to 50% solids based on the weight of the fibers (Japanese Unexamined Patent Publication No. 48-33198).

(e) Problems to be Solved by the Invention This invention is capable of preventing the drip phenomenon (dropping or flow) when a product made of semi-coated material I11 or synthetic fiber is burned, thereby preventing it from burning into the surrounding area. However, during this combustion, harmful and harmful substances such as hydrogen chloride
This is extremely dangerous as a poisonous boss with a strong odor is generated and spreads throughout the room.

The present invention solves the above-mentioned problems and solves the problems α and provides various cowshed/&M
Achieves combustibility of fibers, etc., and also prevents them from melting in the event of a fire, etc.
It does not fall and burn other combustible materials, or impair the texture, appearance, strength, flexibility, and other AW properties, and the hydrogen chloride generated during combustion has a strong and harmful odor such as gas. Improved safety by continuously absorbing poisonous gases/
Drip sex fiber J1! The purpose is to provide products.

(d) Means for Solving the Problems As a result of extensive studies to solve the above problems α, the inventors have discovered that a semi-ePa blend rubber composition containing a specific chloroprene rubber as an essential component has been developed. When coated or incorporated into synthetic fibers, they can be made flame retardant, and
We have discovered scales that impart non-drip properties to semi-synthetic fibers when burned. However, when chlorides such as AA Blend Rubber are used, harmful gases such as hydrogen chloride gas and the like with a strong pungent odor are generated during combustion. As a result of further studies, the present inventors have completed the present invention.

That is, the wet-drip textile product 2 of the present invention, Claims (1) Semi-synthetic fibers or synthetic fibers, and are contained or coated therein to prevent melted material or ash from falling during combustion. A fiber comprising an anti-drip layer [1 item, wherein the anti-drip layer is made of a chloroprene rubber composition containing ao7' rubber as an essential component, and
o Blend rubber composition The feature is that an acid absorbent is added to the proboscis.

The present invention will be explained in detail below.

The semi-synthetic fibers or synthetic fibers used in the present invention are those made of various semi-synthetic J& resins and synthetic resins, and when they are burned, molten matter or carbide falls down and destroys combustible materials at the falling site. It is not particularly limited as long as it is formed from something that is combusted, but in particular acetate fiber, polyester fiber, polyvinyl formal fiber,
Examples include polyamide fiber, acrylic fiber, and spantex.

The feature of the present invention is that an acid absorbent is added to D-loprene rubber AIL, which contains chloroprene rubber as an essential component, and this is contained or coated on the above-mentioned semi-synthetic fibers to form a drip prevention layer. It is in.

Chloroprene rubber as a component of the present invention is used as a rubber modifier, and is solid at room temperature.

Among the above-mentioned 00 blend rubbers, preferred ones include:
Molecular weight is 20,000 to 1. , OOO,000, ne9 to 3
5.000-700.000f), the chlorine content is 30-45% by weight, preferably 35-40% by weight.
, and a Mooney viscosity of 5 to 1oo. By using Rolobrene rubber, it has good adhesion with fibers, is easy to work with, and can be made into nanometers.In the event of a fire, it melts and falls, burning other movable materials. The texture, appearance, strength and flexibility of the semi-synthetic M&Usa are not impaired.

Specific examples include aaa brene homopolymer, or a chlorobrene copolymer consisting of a monomer copolymerizable with chlorobrene, such as styrene, methacrylic acid, methyl methacrylate, a vinyl compound such as acrylonitrile, 1,3-
A copolymer of one or more conjugated dienes such as butanoene, imbrene, 2,3-nochloro-3-butanoene, etc. and chlorobrene, or a chlorobrene-sulfur copolymer with a condensable terminal group, Examples include those having active halogen groups, thiol groups, hydroxyl groups, carboxyl groups, alkylzantate groups, and the like.

In the present invention, one type or a combination of two or more types of chloroprene rubber having the above structure is used.

Another example of chloroprene rubber used in the present invention is one obtained by crosslinking chloroprene rubber with a crosslinking agent.

Examples of the crosslinking agent include insifnates such as toluylene diisocyanate, tetraethylenepentamine,
Ami/methylbiperinone, 4-ami/methylbiperinone, N-ami7brobylbibecolin, N,N-noacylpropane-1,3noamine, 7nalimi7bisbrobylamine meth7acrylate-amine adduct, eboxy-amine aguku Amines such as [, etc., organic peroxides such as tert-butyl human a peroxide, 2,4-nochloronobenzoyl peroxide, chlororuberoxide, etc., metal oxides such as zinc oxide, magnesium oxide, metal complexes of t-butylphenol M etc.

Further, as other examples of the above-mentioned crosslinking agents, those known as acid or base condensation catalysts are also known as crosslinking agents.

One type or two or more of these crosslinking agents are used depending on the terminal group of the chloroprene rubber, and the amount thereof is about 50 parts by weight or less per 4,100 parts by weight of the abra range.

Further, in the present invention, an acid absorbent is added to the chloroprene rubber.

Examples of this acid absorbent include metal oxides such as zinc oxide and magnesium oxide, epoxy U++, basic magnesium,
These include aluminum hydroxy carbonate hydrate, stearate, and L-butyl metal complexes.

In this way, when an acid absorbent is added, it chemically adsorbs hydrogen chloride generated by the decomposition of chloroprene rubber during storage, thereby preventing the trade of semi-synthetic fibers, etc., or preventing fires, etc. Safety is further improved by absorbing acidic gases such as hydrogen chloride generated during thermal decomposition.

In this way, an acid absorbent is added to chloroprene rubber, but the blending ratio is 100jf of chloroprene rubber.
1 to 10 parts by weight of acid absorbent per 41 parts of i, especially 2 to 6 parts
If the amount of acid absorbent added is less than 1 part by weight based on 100 parts by weight of chloroprene rubber, the effect will be poor, and if it exceeds 10 parts by weight, it will not adhere to semi-synthetic fibers etc. This is undesirable because it reduces power.

In addition, in the present invention, by incorporating or applying the above-mentioned composition to Niu Kaiwei Fiber M, etc., it is possible to ensure wet/drip properties and effectively absorb acidic substances. It is preferable to use a flame retardant containing a flame retardant or a flame retardant additive, as this further improves flame retardancy. In this case, the amount of flame retardants and flame retardant aids can be reduced by using them in combination with the oaprene rubber composition. This does not significantly impair the opening properties such as strength and flexibility.

The above-mentioned flame retardant may be one that improves the flame retardancy of semi-synthetic fibers, etc. 11 Although not particularly limited, examples include halogenated organic compounds such as hexabromobenzene, thecapromono7denyl ether, and chlorinated paraffin;
Triphenylphosphate, trifrenorphos 7! −
), phosphoric acid compounds such as cresyl diphenyl phosphate, Iff compounds such as ammonium bromide and aluminum hydroxide, tetrabromo heptatalic anhydride, vinyl bromide, which has a vinyl group, an acid group, and a hydroxyl group in the reactive form.
Examples include reactive halogenated organic compounds such as tribromophenyl acrylate.

In addition, examples of flame retardant aids include inorganic compounds such as heptimony dioxide, zinc oxide, silt, norconium oxide, and the like.

The flame retardant is preferably a powder at room temperature with a particle size of 50 μm or less and a halogen content of 80% by weight or more from the viewpoint of uniform dispersibility and II combustion.

As a specific example, 50 to 2501111 of a halogenated R compound represented by the general formula Cl2BrioO, decapromonophenyl ether, is added to 100 parts by weight of the above chloroprene rubber.
part, preferably 100 to 150 parts by weight. In addition, when a flame retardant aid is used in combination, it is desirable to use a powder with a particle size of 50μ or less at room temperature.
The above antimony trioxide represented by bz 03 is a
It is formed by blending 50 to 250 parts, preferably 100 to 150 g, with 100 parts by weight of a-prene rubber.

Furthermore, it is preferable to add a natural rubber raw material such as natural rubber to the chloroprene rubber to improve its adhesion to synthetic #l fibers, etc.
It is desirable that the amount is 3() to 200 parts by weight,
If it is less than 0 parts by weight, the effect is poor, and if it exceeds 200 parts by weight, the anti-drip effect is impaired, which is not desirable.

The above chloroprene rubber composition can be used as semi-synthetic fiber or synthetic fiber.
It is desirable to contain or coat it in an amount of 5 to 30 parts by weight, preferably 10 to 25 parts by weight per 100 parts of tL fiber, and if the amount is less than 5 parts by weight and 11 parts by weight, the drip prevention effect will be poor. On the other hand, if it exceeds 30 parts by weight, it is not recommended because it may impair the feel and appearance of semi-synthetic fibers, as well as the opening properties such as strength and flexibility.

The anti-drip agent for semi-synthetic fibers or synthetic fibers of the present invention is composed of the above-mentioned specific components, exhibits excellent performance, exhibits excellent non-drip properties even under the harsh conditions of a fire, and also prevents ashing. It also has toughness, and therefore 1
There is no need to burn the town m goods in the fallen F area after 8T.

In addition, the method of incorporating chloroprene rubber or coating cI chloroprene rubber into products such as semi-synthetic fibers does not require any special technique, and any known method may be employed.

(e) The non-drip fiber m product of the present invention for 0- has the above configuration,
Semi-synthetic fibers, etc., are made to contain a specific glue OTL + blend rubber composition or coated with a specific glue AA blend rubber composition to prevent the :8 melting of semi-synthetic fibers, etc. in the event of a fire, etc., and can be used as is. It is in an iodized state, that is, exhibits excellent non-drip properties, and since the ash is tough, it does not fall off, thus preventing JFS burning. In addition, this particular chloroprene rubber composition has an acid absorbent added to it, so it quickly absorbs harmful and pungent-smelling poisons such as hydrogen chloride gas generated during combustion, making it safer for humans. It has two functions.

(f) Examples Hereinafter, the present invention will be explained in detail based on Examples, but the present invention is not limited thereto.

″!lExample 1 Drip LtJ.

Number average molecule 1G50,000, chlorine content [137°5%
, chloroprene rubber 1 having a Mooney viscosity of 40 to 50
00 weight 1 part was dissolved in a toluene solution, and basic magnesium, fluminicum hydroxyl t-bonate hydrate (general formula M !+ +
, 2 parts by weight of s Al 2 (OH) + 3COs・3゜511.0, average particle size 0.4 μm) and 50 parts by weight of antimony dioxide were mixed and stirred well to make a solid content of 20 weight. % of the anti-drip agent used in the present invention was adjusted.

Heavy in this anti-drip liquid! IL100 g/s'
After immersing a 180 μ- acetate cloth at t+7, adjust the amount of anti-drip agent adhered to both sides of the cloth using a burr rod, and then heat drying at 130°C for 2 minutes to obtain a total thickness of 180μ. A drip-resistant textile product of the present invention was obtained in which the amount of anti-drip agent was 15% by weight based on the weight of the acetate cloth.

Further, when a combustion test was conducted using this non-drip fiber product according to the "Test method for flame retardancy and non-drip property" shown in FIG. 1, no acids such as hydrogen chloride gas were detected.

Furthermore, an amount of ffi of 100g/
So 2, thickness 180. After soaking the polyester cloth of CI theory, adjust the amount of anti-drip agent attached using a squeeze rod from both sides of the cloth, and then soak it at a temperature of 130℃ for 2 minutes.
Fl heat drying is performed, and the total thickness is 18 () ~ 1
A non-drip fiber product of the present invention having a thickness of 90 μm and an adhesion amount of the anti-drip agent of 15% by weight based on the weight of the polyester cloth was obtained.

The test results of the non-drip properties and flame retardance of the thus obtained non-drip fiber products are shown in Table tpJ2.

Furthermore, when we conducted a combustion test using this non-drip textile product using the t-rn flammability and V/non-drip test method shown in Figure 1, acidic gases such as hydrogen chloride bosses were not detected. There wasn't.

Example 2 In addition to the anti-drip agent prepared in Example 1''c, 150 parts of decapromonophenyl ether with an average particle size of 50 μm or less and 10 parts of antimony dioxide with a particle size of 50 μm or less per 1001 parts of chloroprene rubber were added. Parts by weight were added and sufficiently stirred and mixed to obtain an anti-drip agent used in the present invention having a solid content of 1i150% by weight.

Using this anti-drip agent, a non-drip fiber M1 product (acetate cloth) and a 7-drip fiber M1g1 product (polyester cloth) were obtained in the same manner as in Example 1.

The test results of the non-drip properties and flame retardance of the thus obtained /ndrinocular a fiber crystal (acetate cloth) and non-drip fiber product (polyester cloth) are shown in Table Pt52.

In addition, when a combustion test was conducted using this wet-drip fiber #i product (acetate cloth) according to 1-Flame retardancy and non-drip test method shown in Figure 1, acidity such as hydrogen chloride gas was detected. was not detected.

Furthermore, when we conducted a combustion test using this non-drip AM product (polyester cloth) according to test method 1 for flame retardancy and 7 for drip resistance shown in Figure 1, no acids such as hydrogen chloride gas were detected. There wasn't.

Examples 3 to 6 Hereinafter, anti-drip agents consisting of the components shown in Table tIS1 were prepared in the same manner.

A non-drip aaV acetate cloth of the present invention and a non-drip textile product (polyester cloth) of the present invention were obtained in the same manner as in Examples 1 and 111 using each of the anti-drip agents of -.

Table 2 shows the test results of the non-drip properties and flame retardance of the thus obtained 7-drip fiber products (acetate cloth) and non-drip fiber products (polyester cloth).

In addition, in the 1st s, t-butyl 7-ru gold jlf
4 complex contains magnesium oxide, which is an acid absorber, in a total of 30%
Contains % by weight.

In addition, when a combustion test was conducted using the non-drip textile products shown in each of these examples according to the [Inflammability and non-drip test method] shown in Figure 1, acidic gases such as hydrogen chloride gas were detected. It wasn't done.

Comparative Example 1 In the same manner as in the above example, samples were prepared from the components shown in Table PA1.

This sample was removed, and acetate cloth and polyester cloth were treated in the same manner as in Example 1.

The test results of the non-drip properties and flame retardance of the acetate cloth and polyester cloth thus broken are shown in Section 2A.

Comparative Example 2 A cloth made of nylon 6.6 was soaked in the following treatment composition for 10 minutes.
The mixture was left to dry for 12 hours, and then the liquid was removed and dried at 80°C.

The weight increase of the cloth after drying was 34.5%.

Polyvinylidene chloride latex (purity 5()%) 100
parts (purity equivalent) Boron: 50 parts Antimony dioxide: 5 parts When this treated cloth was tested for non-drip properties and flame retardancy in the same manner as in Example 1, the same results as in Example 1 were obtained. .

In addition, when this cloth was subjected to a combustion test according to the 1 flame retardant and non-drip test method shown in the tIS1 diagram, 113 pp of hydrogen chloride gas was detected.

(Leaving space below) Test method for flame retardancy and V-non-drip property As shown in Figure 1, a cloth with a width of 19wv is wrapped around a 31φ iron core with half wraps twice, and this iron core with cloth is Mark marked lines (2) on (1) at intervals of 2541, and attach flags (3) to the upper lines with craft tape.

In this case, the flame (4a) of the burner (4) is a reducing flame r3
8+*m? Adjust it to S, tilt the angle (θ) to 20”, and apply the flame (4a) to the lower marking line (2).

After bringing the flame closer for 15 seconds, move the flame (4a) away for 15 seconds. This is considered as one cycle, and 5 cycles are performed.

If the sample continues to burn for 15 seconds or more when the flame (4a) is moved away, bring the flame closer again when the flame (4a) is extinguished. However, it must not continue to burn for more than 60 seconds. (5) is a combustible material made of absorbent cotton.

Judgment ■Flame retardancy O: 191 is less than 15 seconds when the sample burns after the flame is removed.

O... Burning time of the sample after removing the flame is 15-60
Don't burn the Toteve flag in seconds.

■ Non-drip property O: The sample should carbonize without forming a molten lump and should not drip.

O: The sample will form some small molten lumps, but it will carbonize as it is and will not splat.

×...The sample forms a molten lump and drips, and the lower Il
There are cases where combustible materials are burned.

From the results shown in No. 212, each product exhibits excellent flame retardancy, does not melt and fall even when forced to burn, and has carbonization or self-extinguishing properties, resulting in excellent non-drip properties. Moreover, it is recognized that acidic gas such as hydrogen chloride gas is not detected during combustion.

On the other hand, the results of the non-drip test for Comparative Example 2 showed that the sample may drip into a molten lump and burn the combustible material underneath, and the non-drip test for Comparative Example 2 Although the results were good, hydrogen chloride gas was detected during combustion.

(8) Effects of the invention The non-drip textile product of the invention has the above configuration,
Since a drip prevention layer is formed on the semi-synthetic mJI or synthetic fiber, it prevents hot melt and carbide from dripping during combustion, effectively preventing 11 burning to the surrounding area. Since it contains an acid absorbent, no harmful and irritating acidic gas such as hydrogen chloride gas is generated during combustion.

Moreover, in the present invention, the chloroprene rubber composition! la
When the agent is included, the flame retardance of semi-synthetic fibers and the like is clearly excellent, and safety is further improved.

[Brief explanation of the drawing]

Figure tpJ1 is a schematic front view showing a method for measuring non-drip properties and flame retardancy. (1)...iron core with a-ring, (2)...marked line, (3
)...flag, (4)...burner, (4a)...flame, (5)...flammable material. 1st 1゛°°°°gross cough mo 2-... 3... 3 4...-8...-ner 4a--Kyou 5...-6 Moan

Claims (2)

[Claims] (1) A textile product consisting of semi-synthetic fibers or synthetic fibers and a trip prevention layer contained or coated therein to prevent melts or ash from falling during combustion, where the trip prevention layer is A non-drip textile product comprising a chloroprene rubber composition containing chloroprene rubber as an essential component, and comprising an acid absorbent added to the chloroprene rubber composition. (2) The non-drip fiber product according to claim 1, wherein the chloroprene rubber composition contains a flame retardant.