JPS5921779A - Fire retardant coated yarn net - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flame-retardant coated yarn network used in construction, civil engineering, etc., and more specifically, the present invention relates to a flame-retardant coated yarn network used in construction, civil engineering, etc. This invention relates to a flame-retardant coated yarn network particularly suitable for use as a construction curing net, which is formed by gelling this, then reticulating the covered yarn, and then fusing the overlapping points of the covered yarn. .

In recent years, buildings in the construction industry have tended to become more and more high-rise, and in such cases, it has become mandatory to use curing sheets for safety protection, and regulations have become even stricter.

Currently, as such curing sort, for example, a notebook made of nylon or polyester fabric coated with vinyl chloride glastisol is often used, but especially in the case of high-rise buildings, for example, the construction of the sheet, It has disadvantages such as being dangerous when removing it due to the pressure of the paper, and being heavy and difficult to work with.

For this reason, wire mesh, polyethylene net, and other materials have recently come into use. However, wire netting is heavy, and it is difficult to fold it properly, which can lead to erection problems. It has been done.

As a result of repeated attempts to overcome these drawbacks, the inventor of the present invention covered the core yarn with a specific set of vinyl chloride resin sol, gelled it, and then created a coated yarn. When making a net-like structure of the covering yarn and then fusing the loose points of the covering yarn to form a covering yarn net-like body, for example, it is especially useful as a protective net for construction, civil engineering work, etc. The present invention has been completed based on the discovery that it can be suitably used.

That is, the present invention provides a coated yarn network, which is obtained by covering a core yarn with vinyl chloride yarn (☆) and gelling the coated yarn, and then fusing the coated yarn at the opposite points. In the body,
The composition of the vinyl chloride resin sol is vinyl chloride resin 1
00 parts by weight, (a) phthalate ester i'i
] 20 to less than 60 parts by weight of the formulation, (13) 15 to less than 60 parts by weight of a phosphoric acid ester plasticizer, (C) 5 to 25 parts by weight of a phosphoric acid plasticizer, unapproved, 6) and (Ha) )103)
+(C) total amount of plasticizer is 60 to 100 parts by weight,
0) A flame retardant coated yarn network is provided, which further contains 2 to 20 parts by weight of an inorganic flame retardant.

The coated yarn net of the present invention has excellent flame retardancy and satisfies the fire service law standards, and since the net is affected by wind pressure during construction, removal, etc., it is much less affected than conventional sorting. It is small and fairly lightweight, and has good workability and safety, and does not cause radio interference even when deployed over a wide area at high places.It also has good weather resistance, maintains its strength for many years, and is easy to clean. Even if it is damaged, it can be easily repaired by welding, etc., and it has excellent spinnability and can be economically produced into a flame-retardant coated yarn network. It has advantages.

1. The vinyl chloride resin used in the vinyl chloride resin sol in the present invention is usually obtained by emulsion polymerization or seeding emulsion of vinyl chloride monomer, vinyl chloride and vinyl acetate, etc., from the viewpoint of imparting IL flammability. It is a so-called resin for vinyl chloride paste, which is obtained by drying an emulsion of resin powder obtained by car chassis or emulsion suspension polymerization using a spray dryer, etc., and has a vinyl chloride content of 60% by weight. E4 or higher, preferably 70% by weight or more, more preferably 80% by weight or more, is contained in the total resin amount by 60% by weight or more, and these include, for example:
A homopolymer resin for pasting of vinyl chloride with an average degree of polymerization of 800 to 2000, a copolymer resin for pasting with vinyl acetate having a vinyl chloride content of 80%, or 80%
Examples include blend resins of vinyl chloride pesto (60M) containing vinyl chloride in the weight ratio and ordinary vinyl chloride wood obtained by suspension polymerization.

In the present invention, the phthalate ester RIJ plastics mentioned above include octyldecyl phthalate, dinonyl phthalate, diterethylhexyl phthalate, diisooctyl phthalate, moro-octyl phthalate, dinonyl phthalate, diintenyl phthalate, cyto- Examples include 11-decyl phthalate, /sochlorohexyl phthalate, butylbenzyl phthalate-1, and butyllau 11-ruphthalate, but preferably di-2-tylhexyl phthalate, diisooctyl phthalate, and diro-octyl. Phthalate and octyltenulfthalate are good.

In addition, tricresyl bosphate and trioctyl phosphate are used as phosphoric acid ester plasticizers.

Examples include octyl diphenyl phosphate, triphthyl phosphate, tricylol phosphate, triphthyl phosphate, etc., but preferably,
Tricresyl phosphate and trioctyl phosphate are preferred.

Further, examples of the halogen-containing plasticizer include chlorinated paraffin and those having a chlorine content of 30 to 70 M%, preferably 35 to 455 to 45 parts by weight.

The amount of the phthalate plasticizer used is 100i of vinyl chloride thread resin! 20 to less than 60 parts by weight, preferably 30 to 40 parts by weight, more preferably 33 parts by weight based on iJt part
~37 parts by weight. If the amount of the plasticizer used is too small (less than 20 parts by weight), the fluidity of the plastisol will be poor and it will be difficult to obtain a coated yarn with a uniform coating layer. This is undesirable because it tends to cause bands in the net-like body, resulting in a poor appearance.

In fact, the amount of phosphoric ester yarn plasticizer used is less than 15 to 6 parts by weight, preferably 20 to 40 parts by weight, based on 100 parts by weight of vinyl chloride yarn resin.

If the amount of the plasticizer used is less than 20 parts by weight, the flame retardant effect will decrease, and if it is more than 60 parts by weight, sagging will easily occur in the strand whose core yarn is coated with vinyl chloride J, I fat sol. This is not preferable because it tends to cause unevenness on the surface of the covered yarn.

Further, the amount of the halogen-containing plasticizer used is 5 to less than 25 parts by weight, preferably 10 to 20 parts by weight, based on 100 parts by weight of the vinyl chloride resin. If the amount of the plasticizer used is less than 5 parts by weight, the effect of suppressing the change over time of the vinyl chloride resin sol will be small and the spinnability will be poor, and if it is more than 25 parts by weight, bleed will tend to occur. It's not nice.

As mentioned above, in the present invention, the plasticizer IA+, (I
The total amount of plasticizers in 3) and C) is 100% of the vinyl chloride resin.
It is necessary to use 60 to 100 parts by weight.

If the total amount of plasticizer is less than 60 parts by weight, the coated yarn network will become hard, while if it exceeds 100 parts by weight, it will tend to become too soft, which is undesirable.

In the present invention, as described above, the plasticizer (to), (13
).

In addition to the total amount of (C) of 60 to 100 parts by weight, 2 to 20 parts by weight, preferably 5 to 10 parts by weight of 0 inorganic flame retardant, preferably 5 to 10 parts by weight, per 100 parts by weight of vinyl chloride thread resin.゛It is necessary to contain it.

Examples of the inorganic flame retardants that can be used in the present invention include antimony trioxide, titanium phosphate, hydrated zinc borate, Magne 7A,
Examples include baking soda, potassium nitrate, etc., but mixtures thereof may also be used. Preferably, ammonium trioxide is used alone, or a mixture containing ammonium trioxide as the main component. Good. The amount of flame retardant used is
If it is less than 2 parts by weight, the flame retardant effect will be small, and if it exceeds 20 parts by weight, there will be no significant effect in proportion to the amount added, and the tendency to warp and worsen the color tone of the coated yarn will increase, making it undesirable. It is.

The reason for this is obvious, but the above-mentioned plasticizer (A).

(I3) and (C); and a specific amount of the total amount of plasticizer 0)
); Furthermore, it is believed that the various conditions of the inorganic flame retardant θ act synergistically to exhibit the various excellent effects mentioned above.

In the present invention, if desired, in addition to phthalate ester plasticizers, phosphate ester plasticizers, and roken-based plasticizers, other plasticizers may be used in combination as necessary. I can do it. Such other plasticizers include dioctyl adipate, dithecyl adipate, dioctyl acelate, di-2-ethylhexyl sebaque-1, epochinated soybean oil, triethylene glycol caprylate,
Examples include diethylene chloride, glycol prelate, and nato, which can be used alone or in combination.

In addition, in the present invention, vinyl chloride-based fats (eg, saviors, stabilizing agents, thickeners, antioxidants, gelling agents, agent, excipient,
Colorants, ultraviolet absorbers, fungicides, algaecides, foaming agents, etc. can be used.

Examples of the above stabilizers and stabilizing aids include:
Calunium/zinc based, calsulam/0 lead organic complex 1. Barium/zinc type, zinc type complex, epoxy type co-stabilizer, Myoki tin mercaptite.

Examples include organic tin octyl, organic laurate, dibasic lead phosphite, etc. Such stabilizers may be used alone or in combination, and for example, about 0.1 to about 10 parts by weight per 100 parts by weight of vinyl chloride resin. Amounts used may be indicated, such as parts by weight.

Examples of the thickener include carbonate, barium sulfate, kaolin clay, silica powder, mica, titanium white, diatomite, aluminum hydroxide, etc., but calcium carbonate is preferred. , For example, Hakuenka CCR, Whiten S13, Sedimentary Charcoal Cal-
Examples include INcc sub-110. Such thickeners may be used alone or in combination, for example, vinyl chloride resin 1
Amounts such as from about 5 to about 30 parts by weight can be indicated.

Types of gelling agents include, for example, aluminum esterate, silica aerogenopamine-modified montmorinite, and I! ,'-CON 100C Made by Nippon Shichion ■]
Such gelling agents may be used alone or in combination, for example, in an amount of about 0 parts by weight per 100 parts by weight of vinyl chloride resin.
．． Amounts such as 5 to about 3 parts by weight may be indicated.

Types of antioxidants include f/1'', 2,6-/
Mention may be made of acid inhibitors such as -1-butyl-4-methylphenol, 2,2-methylenebis(6-t-phthyl-4-ethylphenol), and dilau-11-ruthiodipropylphenol; The inhibitor can be used alone or in combination in an amount of from about 0.1 to about 10 parts by weight per 100 parts by weight of the hynyl salt.

An example of a type of drug is Mii Shirsuhi.

Examples of such diluents include toluene, toluene, and solvents. Such diluents may be used alone or in combination, for example, in an amount of about 2 to about 20 parts by weight per 100 parts by weight of vinyl chloride thread resin. It is possible to show the amount used.

Examples of the colorant include phthalonanine blue, phthalonanine blue, and phthalonanine blue. -1 completion 1
Examples of colorants include 1x11n lake, titanium oxide, zinc white) permanent ret, carbon black, and quinacrylic acid. Approximately 0.00 per part
Usage amounts such as 1 to about 5.0 parts may be indicated.

As mentioned above, the combustible coated yarn network of the present invention includes:
Although it is possible to contain an ultraviolet absorber, one preferred example thereof is an ultraviolet absorber that prevents the transmission of ultraviolet rays including near ultraviolet wavelengths of 380 n11) or less. Examples of such ultraviolet absorbers (1!) include 2-(2-hydroxy-3',5'-di-t-
Butylphenyllolobenzotriazole, 2-(2-hydroxy-3'-t-butyl-5-methylphenyl)-
5-Chlorobenzyto 11azole, 2-(2-Hydroki-3'-Ichigomi,,-5-Inobuchi,,7e=,,
)-5-chlorobenzo!・Riazole, 2-(2-hydroquine-3'-inobutyl-5-methylphel)-5
-1'loropenzotrizole, 2-(2-hydroxy-3-inbutyl-5-propylphenyl/l/') -
5-chlorobenz(-u-y Solnor 11
Qui-2-hydroquine phenyl-5-chlorobenzosol-based ultraviolet absorbers; for example, 2-(2-hydroquine-3',5'-di-t-butylphenyl)benztriazole, 2-(2-hydroxy -5-methylphenyl)benzotrichozole, 2-[2-hydroxy-5'-
(1,L3,3-tetramethylbutyl)phenyl] 2-hydroxyphenylbenzotriazole ultraviolet absorbers such as (1,L3,3-tetramethylbutyl)phenyl]benzotriazole; for example, 2,2-dihydroxy-4-methquinenzophenone, 2,2 -dihydroquine-4,4-dimethoxybenzophenone, 2,2,
4.4-Tetrahydroxybenzophenone 2+2
-Dihydroxy/benzophenone UV absorbers; for example, 2-hydroxy-4-methoxopenzophenone, 2,
2-hydroxybenzophenone ultraviolet absorbers such as 4-dihydroxybenzophenone; cyanoacrylate ultraviolet absorbers such as 2-ethylquinol-2-cyryno-3 + 3-diphenylacrylate-1; e.g. phenylsali Examples include salicylic acid ester ultraviolet absorbers such as tylate.

The amount of the ultraviolet absorber as described above can be selected as appropriate, for example, vinyl chloride resin 1o.

The amount used can be about 0.5 to about 2.5 parts by weight.

Examples of types of antifungal agents and antialgal agents include 2,4,5゜6-titrachloroisophthalonite 1'', 10.10''
-Oxybisphenoxyarsine, 2-(4-thiazolyl)-benzimidazole1. Examples include tributyltin laurate, N(fluorocyclomethylthio)fuchlorodichloromethylthio)-sulfamide, and such antifungal and antifungal agents may be used alone or in combination, for example,
Approximately 0.001 to 3 parts of vinyl chloride resin iooM
．． An example may be an amount such as 0 parts by weight.

Types of blowing agents include, for example, azodicarbonate, p-toluenesulfonyl hydracite, dinitrosopentamethylenetetramine, etc. Such blowing agents may be used alone or in combination, such as vinyl chloride-based For example, the amount used may be from about 0.5 to about 10 parts by weight per 1-ook part of the resin.

In the present invention, a flame-retardant coated yarn network is obtained by coating the core yarn with vinyl chloride sol and gelling the coated yarn, and then fusing the overlapping points of the coated yarn. However, in order to make it elastic, it is preferable to use the above-mentioned foaming agent, and the amount of the foaming agent used is preferably 1 to 5 parts by weight.

The core thread used in the present invention is preferably monofilament or multifilament of polyester, nylon, or glass, although there are no particular restrictions.The thickness is generally 420 to 2420 denier, but preferably 850 to 2000 denier. , more preferably 1000
~1890 denier is good.

The combustible coated yarn network of the present invention comprises a vinyl chloride resin,
A vinyl chloride resin sol prepared by a known method by blending plasticizers (e), (C), inorganic flame retardant (■), and other compounding agents mentioned above as necessary, is used as a core thread. For example,
After being coated through a sizing nozzle and gelled, the yarn to be warmed can be made into a mesh, and then the overlapping points of the coated yarn can be fused. The opening of this flame-retardant coated yarn network may be appropriately selected depending on the intended use, but is generally 9 m/m or less.

At this time, the weight ratio of the core yarn of the covered yarn to the vinyl chloride resin sol is 35 to 15 weight percent of the core yarn, and 6 weight percent of the vinyl chloride resin sol.
A weight ratio of 5 to 85 is preferred. In this ratio, the core yarn is 35
If the core yarn is less than 15%, it is difficult to obtain a uniformly coated yarn with good flame retardancy, and if the core yarn is less than 15%, the coated yarn with good strength is undesirable.

Furthermore, in the present invention, when a flame-retardant coated yarn network that has elasticity and is particularly suitable for use as a construction curing net is desired as described above, a blowing agent is added as a component of the vinyl chloride-based side fat sol. It is also possible to produce an elastic, flame-retardant covered yarn network by foaming the covered yarn, forming it into a net, and fusing the overlapping points of the covered yarn. .

The flame-retardant coated yarn net of the present invention can be suitably used in a wide range of arbitrary conditions, especially as a curing net for construction and civil engineering work, but can also be used in other ways, such as safety nets, protective nets, etc. It can also be used for various purposes such as barrier nets, industrial use, sports use, etc.

The performance of 'A-Yenmei's flame-retardant coated yarn network will be explained in more detail below using examples as well as comparative examples. The performance tests and evaluation of one song were conducted as follows.

(1) Flammability test: Test according to JIS L-1091.

□ Cut a test piece of about 350 m x 250 ηLm from the coated yarn network and place it in a box.

Heating test for 091 minutes The test piece was placed in a combustion test box and heated for 1 minute with a micro burner adjusted to a flame length of 45 mm, resulting in an afterflame of 11 J.
(seconds), residual time (seconds) and carbonized area (crl).

Afterflame time: The time (in seconds) that a test piece continues to burn after heating.

Residue time: The time from the end of heating until the test piece stops flameless combustion (extract).

Carbonized area: m * (cJ) of carbonized part.

@ Heating test for 3 seconds after ignition The test piece was attached to the combustion test box in the same way as above, heated with a micro burner, the flame was removed 3 seconds after ignition, and the afterflame time, residual time and carbonized area were measured in the same way as above. Measure. The flame retardancy is evaluated as 8, which is a low measured value.

(c) Flame contact test A test piece was prepared by cutting it to a width of iomm and a length of 200 mm. The length of the burner flame is adjusted to 45 mm with only a few support coils. The specimen is inserted centrally within the specimen support coil and held at a 45° inclination in the combustion test box. Adjust the flame of the burner so that it contacts the lowest end of the test piece in the test piece support coil, and heat until the test piece melts and stops burning. Readjust the position so that the flame touches the bottom end of the remaining test piece and perform the same test as last time.
This operation is repeated in the trench where 90 mm from the bottom edge of the specimen melts and burns. Measure the number of times of flame contact.

(11) Tensile test: Test according to JIS L 106s.

(2) Measurement of tensile strength (kg) and elongation (m/m) Prepare a test piece of 3 cm in diameter and 30 cm in length from the coated yarn network by cutting it in the vertical and horizontal directions.

This test piece was subjected to a constant speed tension type textile tensile test method, with a grip interval of 20 cm and a tensile speed of 20 ± 1 crtI/min.
tensile strength, cutting strength (kg), and elongation b (mm)
Measure r.

011) Spinnable core yarn was coated with vinyl chloride resin sol and spinning performance was visually observed and evaluated as 1°○: No sagging or uneven coating.

△: No sagging, some coating unevenness.

×; Severe sagging and uneven coating.

4. Appearance test of coated yarn After the core yarn is coated with J-type vinyl resin sol and gelled, the coated yarn is evaluated by visually inspecting the surface smoothness and IJ-do.

(Surface smoothness ○: The texture is smooth and uniform.

×; There are unevenness.

(b) Burrito S; None.

×; Yes.

(V) Stability of vinyl chloride resin sol When a plasticizer and the like were added to vinyl chloride resin to form a sol, the state of the sol was evaluated.

○: Good workability with little change in viscosity over time.

×: The viscosity changed significantly over time, resulting in poor workability.

Example 1 A resin for vinyl chloride paste (manufactured by Mitsubishi Monzanto Kasei; trade name: , Vinyryoku P-450; I), 1500-1600; particle size; 1μ or less) 10 parts of ON, then to 100 parts by weight of the vinyl chloride resin) di-2-ethylhexyl phthalate 30' parts by weight of fi, (J3) 40 parts by weight of tricresyl phosphate, (C) warmed paraffin (
C1, 40%) was gradually added over about 20 minutes while stirring. After further stirring for about 20 minutes, Ca-Zn
3 parts by weight of liquid stabilizer, 75 parts by weight of anti-7 trioxide, 10 parts by weight of calcium carbonate, and 3 parts by weight of phthalonanine green are added over about 20 minutes with stirring. After addition,
The mixture was further stirred at room temperature for about 1 hour. Next, sincere pressure 5' Q
80'00 after air defoaming for about 15 hours with mm1-1g
CpS (B-type viscometer, 0-tar V-6, 12rI)
A sol of a vinyl chloride resin was obtained.

Put the sol in a bath, then pinch a 1000 tenier polyester multifilament core yarn with pinch rolls and pass the sol through the bath through a guide roll,
Next, the hole through which the core yarn passes (hole diameter 0.7, m/mφ
) and a hole through which the coating sol passes (hole diameter 1.0 m/m
The sol was passed through a double-tube sizing nozzle with φ) to coat the polyester core yarn with the sol. The coated strand thus obtained was heated in a heating furnace (length 5 m) at 180°C for a length of 10 m.
/min to gel the strands.
A coated yarn of 0f Neil was produced.

Using a rapier loom, weave a mesh plain weave with 21 warp yarns/10α and 21 weft yarns 710α at 50 on/m.
It was woven at a speed of ln. Next, this woven fabric was heated through a tenter heating furnace at 190° C. to thermally fuse the intersections of the warp yarns and the weft yarns to obtain a flame-retardant coated yarn network of the present invention.

The various performances of this net-like body were measured and the results are shown in Table 1-2.

Example 2 According to the conditions of Example 1, the plasticizer system and compounding agents shown in Table 1 of Fang 1 were used, and as shown in Table 2 of Fang 1, the core thread was nylon multiferament 1890de, and The inner diameter of the inner pipe of the heavy pipe sizing nozzle is 0.9 m1mφ,
The inner diameter of the outer tube was set to 1.3 m/mφ, and a flame retardant coated yarn network was prepared in the same manner.

The results of measuring various performances of this net-like body are shown in Table 2 of Table 1.
Shown below.

Examples 3 to 7 and Comparative Examples 1 to 7 According to the conditions of Example 1, 1 in Table A.1 and 1 in Table 2
The flame-retardant coated yarn networks of Examples 3 to 7 and the networks of Comparative Examples 1 to 7 were obtained using the plasticizer system and compounding agents shown in Because of the poor properties, it was not possible to obtain a coated yarn with a constant tenier, and therefore it was not possible to perform a flammability test and a tensile test on the network.

The results of measuring various performances are shown in Table 2 of Fang 1 and Table 2 of Fang 2.

As is clear from comparing 2 in Table 1-1 and 2 in Table N-2, the flame retardant coated yarn network of Examples 1 to 70 of the present invention all have excellent performance. In Comparative Example 1, the stability of the sol was poor, and in Comparative Examples 2, 4, and 7, the flammability test was particularly poor, and all of them were unsuitable as a flame-retardant coated yarn network. Ta.

Patent Applicant Nippon Carbide Industries Co., Ltd. Procedural Amendment October 14, 1980 Patent Office Technical Officer Kazuo Wakasugi Display of Case 1 It) j, I'l! 111 negative to 57 year special 6'1! ,1
28925 May 2, Title of invention 4111 Flammable pongee-shaped pine f's proboscis r-system (Hd)
3.Relationship with the Nagisa case to be amended Patent applicant address: 3-chome, Marunouchi, 3rd ward, Chiyohi, Nakakyoto I: 13-1 No. 4 Director Address: 107-7 Contents of amendment Document 1. Name of the invention. Covered yarn for retardant reticulated cypress fabrics. 2. Claim 1. Covering of core yarn (core yarn) coated with vinyl chloride-based resin and treated with one-stroke resin sol (glastisol). r@(
A net-like fabric with a sheath) is used for making objects, and a covered thread (
core/sheath yarn), comprising the following plastisol composition, (i) vinyl chloride paste resin 100 Kyoto part (1
() For the 100-fold part of the R-st resin, (,'l)
+ (B) + (C) total amount of 60-100 parts by weight (A)
Phthalic ester plasticizer 20 to less than 60 parts by weight, (B) Phosphate ester plasticizer 15 to 60 parts by weight
(C) a ternary plasticizer consisting of 5 to less than 25 parts of a halogen-containing plasticizer other than (A) and (J)), and (iii) the paste resin 100 type side 2 for part
A straightened I yarn for a sakaki-like structure, characterized in that it has the above-mentioned coating layer formed of a plastisol composition containing ~20 parts by weight of a non-flammable flammable agent.

2. d(A) The coated yarn according to claim 1, wherein the phthalate-resistant ester-based agent is a phthalic acid soalkyl ester-based n1 plasticizer.

3. The coated yarn according to the first aspect of Patent No. 5-1, wherein the (1)) phosphoric acid ester-based n1φH agent is a phosphoric acid tri(alkyl and/or aryl) ester plasticizer.

4. The halogen-containing plasticizer (C) is a halogen-containing plasticizer selected from the group consisting of #hi-cellaphin and chlorinated fat 111 acid ester;
The yarn covered with yarn as described in paragraph 1.

5 The core yarn is made of yarn made from natural or synthetic wrinkled yarn, inorganic binding yarn, and a mixture thereof.
thread.

6. The overlay yarn according to item 1, wherein the yarn has a denier of 210 to 2420.

7. The seedling yarn according to the first group, wherein the average thickness of the yarn is at least 1 (μm).

3. Detailed Description of the Invention The present invention provides silk-like cotton suitable for use in a wide range of applications, including the so-called "cow farming sheet" used for safety protection in civil engineering, construction work, etc. The coating yarn (core/sheath yarn) for network structures that is suitable for use in the formation of structures has the following points: lvl, f'', sticky properties, strength, lightness, etc. +! It is useful for providing a highly flammable network structure with excellent flammability and a surface 3V slip property.

More specifically, the present invention provides a willow-shaped structure comprising a core yarn coated with a vinyl chloride-based paste sol (plastisol) and a sheath layer formed by a resin coating. The following plastisol composition is used (core/sheath yarn): (1) 100 parts of vinyl chloride paste resin (ii)
For the paste insert/January 100 double ν sound 11,
(A) + (B) + (C) with a weight of 60 to 100 parts (,4) phthalate ester-based lubricating agent 20 to 60 parts of weight, (B) phosphate ester-based lubricant (C) a three-component plasticizer consisting of 5 to less than 25 parts by weight of a halogen-containing plasticizer other than (, 4) and (B) above, and (iii) the paste. A plastisol composition made of a plastisol composition containing 2 to 20 parts of φ1i refueling agent per 100 parts of 404 fat. Reticular Ze/False 9
It relates to a coated yarn.

In recent years, I! i1 In the construction industry, buildings are becoming more and more high-rise buildings.
In such cases, it is now compulsory to stretch raw rod sheets for safety purposes, and the regulations are becoming even more difficult.

Currently, as such curing sheets, for example, sheets made of materials such as nylon or polyester and a plastisol composition of vinyl paste tree Il'6 are often used, but they are especially used for high-rise private schools. In this case, for example, when the sheet is erected or removed, there is a risk of wind pressure build-up, and it is heavy and difficult to work with. However, wire mesh, polyethylene net, and other nets have come into use in recent years.
In addition, 41 houses were folded, and the construction of the beams during erection and removal was poor, and in some places they could cause harm to Japanese waves.On the other hand, polyethylene nets were flammable and undesirable under the Fire Service Act, which caused problems in four cases recently. It is becoming more and more popular.

Conventionally, the core yarn is made of 118-color shingled C yarn with a plastisol containing a foaming agent, and the net-like structure is formed into a 3V flattened yarn. Under conditions where the threads intersect with each other, the intersecting parts of the threads are heated with floating dust that is foamed by a foaming agent, thereby improving self-i'1 retention. known (e.g. published in US TP 4.144.371). However, in this proposal, +d, !ni!
Furthermore, there is no comprehensive disclosure regarding the plasticizer used in the plastisol.

On the other hand, regarding the vinyl chloride straight resin, which has significantly different particle shape, tank structure, and plasticizer absorption properties, the flame retardancy of the resin 111f In order to improve
It is introduced as prior art in No. 786 and Japanese Patent Publication No. 53-18065. And, 1978-41786
as well as! Comparison of No. 53-18065, Example 1,
The above-mentioned iA-vinyl-based paste ladle ilY, different ordinary vinyl chloride threads) 1. The above prior art composition, in which three kinds of agents are combined together, 1. , polyvinyl chloride tree li containing untreated non-rough fin and antimony
d The elongation of the composition (it has not been experimentally shown that the flammability improvement effect is completely unsatisfactory).
For use in forming oval structures] (Sita'hfnJ:'
We have been conducting research in order to provide a thread that has three threads and is both excellent and has no flammability.

As a result, (4) phthalate ester plasticizers, which include combinations that have been experimentally shown to give unsatisfactory results when imparting flame retardancy to ordinary vinyl chloride resins; B) ffi acid ester plasticizer and (C)
A ternary T31 plasticizer consisting of a halokene-containing plasticizer other than (A) and (B) above in a specified amount and proportion, and an inorganic flame retardant within a certain range, or a vinyl chloride-based plasticizer. ) It is said that it provides various properties such as excellent flame retardance, strength, and lightness as a covering thread for network structures coated with If fat sol, as well as providing a covering thread with excellent surface smoothness suitable for forming network structures. I discovered a surprising fact.

Furthermore, the net-like body formed using the coated yarn has excellent U reliability and meets the Fire Service Act Standard E (in addition to the above), and since the net-like body is not affected by wind pressure during erection, removal, etc. It is very small compared to other sheets, and it is still light in weight, making it easy to work with and safe.It does not cause electromagnetic interference even if it is spread over a wide area at high places, and it is also strong due to its good weather resistance. It retains its properties for many years, is easy to clean, and even if a phase defect occurs, it can be easily repaired by welding, etc., and in the production of coated yarn, it is easy to clean. Excellent covering yarn forming properties and economical.

It was found that this method has many advantages such as being able to easily form a reticular fiber network.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a coated yarn for flame-retardant network structures which exhibits improved properties.

The above objects and many other objects and advantages of the present invention will become more apparent from the following notes.

The vinyl chloride paste resin used in the vinyl chloride 4-styl sol in the present invention is obtained by emulsifying and seeding comonomers such as vinyl chloride monomer, vinyl chloride monomer, and vinyl acetate according to methods known per se. Emulsification: (vinyl chloride base obtained by 9-polymerization or emulsion suspension polymerization, etc.) 14 Emulsion of fat powder Obtained by a method such as drying using a kinpo-kiku, hareki, etc.≠;
can. Such filler vinyl yarn paste resin contains cyclized vinyl as a main component, for example, the vinyl chloride content is about 60% by weight or more, preferably about 70% by weight.
2. More preferably, the weight is about 80% higher, especially about 9%.
An example is a salt-based paste #1 fat containing 1% or more of Okiyuki. Examples of such vinyl chloride-based yeast resins include, for example, single-mounted resins for pastes of vinyl chloride with an average degree of polymerization γ of 1,800 to about 2,000, vinyl chloride and acetic acid having a vinyl chloride content of 7i-1, which has a binding capacity of about 80Φ or more. A copolymer resin for paste with vinyl, or a packaging for vinyl chloride paste containing about 80 parts by weight or more of vinyl chloride) or more than 601 ■:, i+;
It is possible to make a blend of 111' fabric prepared by the suspension method with LEA vinyl resin of about 40 Ytf or less.

As is well known, the vinyl chloride paste Tagawa used in Honseimei is;
1. The powder to be removed is a porous 411J structure with a diameter of about 60 to 330μ, and the N1 plastic absorbs quickly and absorbs the moving parts and becomes agglomerated, whereas the particle size is about 1μ. Breaking down the non-porous spherical structure I'A below, Unanataki-5
Pak-ko solid powder is available! IP! It forms a viscous sol that is dispersed in R11 in a stable layer and has a viscous sol that becomes viscous when machining. Distinguished from reinforced vinyl resin.

The object/thread of the present invention is (D Vinyl chloride paste tree 100 layers (11
) For the 100 ball F section of the paste rank January, (A)”
('') + (C) NoW, the amount is 60~1oo weight?3 @
11 (7) (A) Phthalate ester EI plasticizer 2o
- Less than 60 parts by weight, (B) 15 to less than 60 parts of phosphoric acid ester plasticizer, (C) 5 to 25 parts of halogen-containing -nlV1!1 agent other than the above (, 4) and (B) and (Ill) a plasticizer formed from a plastisol composition comprising 2 to 20 parts by weight of an inorganic retardant per 100 parts by weight of K'1 paste resin. A covered yarn (with a sheath) that has been kelized
core/sheath yarn).

Examples of the phthalic acid plasticizer (4) include dialkyl phthalates such as di-normal alkyl phthalates, diisoalkyl phthalates, and mixed dialkyl phthalates. Preferred di-normal alkyl phthalates include alkyl←long c-4 to CI2, such as subbutyl phthalate, di-n-octyl phthalate, di-r-decyl phthalate, di-n-lauryl phthalate-14, and dialkyl phthalate. I can give an example. Also, soydialkyl phthalate and alkylφ
Those having a length of C6 to C11 are preferable, and examples thereof include dialkyl phthalate, ')-2-ethylhexyl phthalate, diisooctyl phthalate, cicagril phthalate, sononyl phthalate, and diisodecyl phthalate. Examples of the mixed group soalkyl phthalates include C7-C9 dialkyl phthalates, C1-C1° dialkyl phthalates, C1-C11 dialkyl phthalates, and C0-c,1 dialkyl phthalates. These (A) phthalate ester OJ'jl', j
Among the agents, so-2-ethylhexyl phthalate, di-n
-Octyl phthalate, diisooctyl phthalate, C
Particularly preferred are 7-C, dialkyl phthalates and C7-C5o dialkyl phthalates.

Examples of the phosphate ester plasticizer (B) include triaryl phosphate plasticizers, trialkyl phosphate plasticizers, arylalkyl γ #7 synthetic phosphoric acid plasticizers, and halogen-containing phosphate ester plasticizers. Triaryl phosphates include tricresyl phosphate, tricylenyl phosphate, diphenyl cresyl phosphate, phenylisopropylphenyl phosphate, and PH08 manufactured by Stouffer Chemical Co.
Examples include mixed triaryl phosphates such as FLEX-200. Examples of IJ alkyl phosphates include tributyl phosphate, trioctyl phosphate, tributoxyethyl phosphate, tris-2-chloroethyl phosphate, and 1.r1 octyl diphenyl phosphate as arylalkyl mixed phosphates. Kill etc. by example.

In addition, as a halogen-containing phosphoric acid ester (l↓tris-sobromoglopyruphosphate, tris-β-chloroethylphosphate, tris-dichloropropylphosphate, tris-2,3-sopromop "J-pyruphosphate-I) I
An example is a dusty mixed triaryl phosphate such as IO8FLEX 300. (B) Among phosphorus N'l ester b1 pharyngeals, it, %, 1 Phosphorus such as triaryl tricresyl phosphate, diphenyl cresol phosphate, diphenyl isoprogylphenyl phosphate Preferred are tri(alkyl and/or aryl) ester modifiable agents. Also, containing halokenes
Among the ill esters, tris-diprono, propyl phosphate, tris-β-chloroethyl phosphate,
L-lissochlorpropyl phosphate is better.

Historically, examples of halokene-containing thread binders other than (A) and (1) of (Q) above include chlorinated solafine and chlorinated fatty acid Nisdel. Examples of chlorinated graphenes include those with a chlorine content of 35 to 70 tons, but those with a chlorine content of 40 to 50 tons are exemplified by cow (
preferred. Examples of chlorinated fatty acid esters include chlorinated stearate esters such as ethyl stearate trichloride and methyl stearate pentachloride.

Also exemplified are methoxychlorinated fatty acid esters such as methyl methoxychlorinated fatty acid.

Use of phthalate ester plasticizer (20 to 6 per 100 fabric parts of the vinyl smoked paste resin)
Less than 0 wholesale - Saibe, preferably 30 to 40 Jububu, Tsui preferably 1 Keke 33 to 37 Bububu. The amount of the nasal preparation to be used is 20 middle + If you have a total of 60 points or more, it will make your laziness worse [7 unfavorable.

(B) The first use of #t Zeester-based detergent is,
Vinyl chloride yeast-based 1 fat per 100 heavy metropolitan areas
Less than 5 to 60 areas, preferably 20 to 40 city areas. If the amount of rice plasticizer used is less than 20 parts by weight, the flame release effect will be reduced, and if it is more than 60 parts by weight, the strands will be softened with a vinyl paste resin sol for core yarn. It is easy to sag, and there is a tendency for unevenness to be formed on the surface of the Shinya yarn, and the surface smoothness of the w;'14 yarn deteriorates, making it unsuitable.

Historically, (C) Usage amount of halokene-containing b1 Shusai 11 rj
, 5 parts for 100 parts of acclimatized vinyl paste resin
~25 parts by weight, preferably 10 to 20 parts by weight. If the usage amount of 1Iv1 11 is less than 5 times, it is
t = The effect of suppressing the undesirable changes over time of the chemically modified nyl-based paste resin sol is reduced, and the formation of undiluted coated yarn is poor, and in the 25-layer world, there is a tendency for bleeding to occur, which is not favorable. .

As described above, in the present invention, the plasticizer (A).

The total amount of the plasticizers (B) and (C) must be 60 to 100 parts by weight per 100 parts by weight of the vinyl chloride paste resin.

If the total amount of plasticizer is less than 1 part by weight, which is too small, the coated yarn will become hard, while if it exceeds 100 parts per week, it will tend to become too soft, which is undesirable.

In the present invention, the ETJJ agent is used as described above. (A).

In addition to the conditions in which the total amount of (B) and (C) is 60 to 100 parts by weight, (E) a non-contact type extrusion agent is added to 2 to 1 parts by weight of the vinyl chloride paste resin a*ioo. 20 Jugetsu Club,
Preferably, there is 8x containing 5 to 10 parts of f.

Examples of the above-mentioned bullets used in the present invention with complementary angles of 0 and 0 are antimony trioxide, 1' antimony, 91tu axis, titanium, water condensed lead, magnesia, etc. However, it may be a mixture or combination of these, and it may be sweet or sweet.
< iJ, contains antimony triferment and
However, if the amount of ammonium added exceeds 20 parts, there will be no effect in proportion to the amount added, and the color tone of the yarn will warp and tend to worsen. This is because the amount increases and becomes less luxurious.

Although the reason is not clear, the vinegar lubricant mentioned above, (A)
, (H> and ((,');, [], the conditions of the drunkenness and the prison around the shoes (D); The synergistic effect of the above-mentioned gods, !2 + 11 coins, manifests itself.

In the present invention, if desired, (A) a phthalate movable agent, (B) a phosphoric acid ester thread cutting agent, and (C) a haloke-containing agent other than (/l) and (B) may be used. In addition to the three-component system of antiseptics, other agents (1) may be used in combination as necessary. Other such plastics include sooctyl azate, didecyl azate,
Examples include dioctyl azelate, so-2-dicylhexyl sepacate, epoxidized fatty oil, triethylene glycol caprylate, soethylene glycol caprylate, and these can be used in combination with single X. .

In addition, for vinyl chloride paste #I fat sol with water valve 1, select the type and - as necessary, for example,
Stabilizers, stabilizing agents, thickeners, anti-oxidizing agents, celifying agents, diluents, coloring agents, ultraviolet absorbers, anti-mold agents, anti-algae agents,
A foaming agent etc. can be used in combination.

Examples of the above-mentioned stabilizers and stabilizing aids include calcium-zinc based, calcium-zinc organic complex,
Examples include barium-zinc type, zinc-based complexes, engineered oxygen type bright stabilizers, organotin mercaptite, cold tin octyl, organic laurate, dibasic lead phosphite, etc. Alternatively, they can be used in combination, for example, in a cyclized vinyl paste resin 100-type rolled part with a weight of about 0.1 to about 1O.

Examples of thickeners include calcilum carbonate, barium sulfate, kaolin clay, silica powder, mica, titanium white, diatomaceous earth, aluminum hydroxide, etc., but calcium carbonate is preferred; For example, Shirahonka CCR, Whiten SR, Sedimentary Charcoal, NC
All C≠110 etc. can be shielded. Such thickeners can be used alone or in combination, for example, about 5 to about 30 parts per 100 parts of vinyl chloride paste resin.
can be exemplified.

Examples of gluing agents include aluminum stearate, silica aeroglu, amine-modified montmolinite, and g-coNloo (manufactured by Nippon Zeon), and such gluing agents can be used alone or in combination. , for example, about 0.5 per 100 parts of vinyl chloride paste resin.
Examples of uses include ~3 times the amount.

Examples of antioxidants include 2,6-di-t-butyl-4-methylphenol, 2,2-methylenebis(
Antioxidants such as 6-t-butyl-4-ethylphenol) and solauryl thiodiglobionate can be mentioned, and such antioxidants can be used alone or in combination. For example, the use 11 may be from about 0.1 to about toili to lii.

Examples of diluents include, for example, mineral spinach,
Examples include xylene, toluene, 6-solvent, etc., and these agents can be used alone or in combination, for example, 18-vinyl paste. Depending on the country of use, it is possible to use r'+ 2 to r) 20 layers per 100 layers of resin.

Examples of the coloring agent 4+=+1 include (a, phthalocyanine blue, phthalocyanine green, )-n the yellow, alizarin lake, k''-tikutitanium 47'1 flower,
No ξ - Manent Red, Kaden Black, Kinaku 1j
These external T color names 11 can be used alone or in combination, for example, for formula vinyl yarn - Stose 7
It is possible to show a usage number of about 0001 to about 5.0 times per 100 times 411 times.

As mentioned above, the flammable M yarn of the present invention can contain ultraviolet light absorbing material 11, but one preferable example is a material that absorbs ultraviolet light of 380 nm or less, including near ultraviolet light. It is possible to prevent UV rays from being absorbed by UV absorbers. Examples of such UV absorbers include:
r -(2'-human lrxy3',5'-di-t-butylphenyl)-5-chlorobenzotriazole, 2-
(2ξhydroxy-3'-t--y'thyl-5'-medylphenyl)-5-chloropensotriazol, 2-
(2 otohi)" o ki'/-37-t-amyl-5'
-isobutylphenyl)-5-chloropenzotriazole, 2-(2'-hydroxy-37-isobutyl-5-fumethylphenyl)-5-chlorobenzotriazole,
p2'-hydroxyphenyl-5-chlorobenzotriazole-based ultraviolet absorbers such as 2-(2'-hydroxy-37-isobutyl-5'-propylphenyl)-5-chlorobenzotriazole; for example, 212/-hydroxy- 37L 5'-So-t-butylphenyl)penztriazole, 2-(2ξhydroxy-5ξmethylphenyl)benzotriazole, 2-L2'-hydroxy-5
2'-hydro diphenylbenzotriazole system purple $L such as '-(1,1,3,3-tramethylbutyl)phenyl]benzotriazole 4. t+'if''z acid agent 4fl; 911el'2, 2'-7hydroxybenzophenone, 2,2'-no)nitroco-4゜4'-dimethogizopene Zofenone, 2.
2,2'-dihydroxybenzophenone-based ultraviolet astringents such as 2',4,4'-tetrahydroxybenzophenone; e.g., zld2-hydroxy-4-methoxybenzotuunone, 2,4-sohydroxybenzophenone 2-Hydroxybenzophenone-based UV 8Ii' absorbers such as phenone; e.g. 2-ethylhexyl-2-'/ano-3-duphenyl acrylate/anoacrylate-based UV absorbers such as phenylsalicylate; Examples include Salityl Ugly Nisder type ultraviolet 1-product extractants; and the like.

The blending amount of the ultraviolet absorber as described above can be selected as appropriate.
It is possible to show the usage amount of approximately 0.05 to approximately 25.

Examples and 12 of antifungal agents and antialgal agents include, for example, 2L4°5.
6-titrachloroisophthalonitrile, 10°10'
-oxybisphenoxyarsine, 2-(4-thiazolyl)-benzimidazole, tributyl laurate,
N(fluorochloromethylthio)phthalimide, N-tumethyl-N'-phenyl-(NLchlorosochloromethylthio)-sulfamide, etc. Agents can be used alone or in combination for a long time, e.g.
Vinyl paste tree 1k 100'? For example, the amount used may be from about 0,001 to about 3.0 parts by weight per ljm parts.

Examples of blowing agents include azosocarpo:/amide, p-toluenesulfonylhydraside, dinitrosopentamethylenetetramine, etc.; such blowing agents can be used alone or in combination; for example, vinyl chloride-based For example, the amount used is about 0.5 to about 10 parts by weight per 100 parts of the paste resin.

In the present invention, the core yarn meets the above requirements (1).

(11) and (iii)? : A coated yarn can be obtained by coating the yarn with a sufficient layer of vinyl yeast resin sol and then drying it. This coated yarn can be made into a net-like structure of any desired shape, and further intercalated with overlapping points (r IW) of the covered yarn to obtain an externally combustible coated yarn net-like structure, which is particularly elastic. It is preferable to use the above-mentioned foaming agent, and the amount of the foaming agent used is about 1 to about 5.
Heavy electrical parts are good.

The core yarn used in the present invention is not particularly limited, but synthetic or inorganic monofilaments and multifilaments such as polyester, nylon, glass, etc. are preferable, and the thickness and transverseness are, for example, 210 to 2.
420 denier is used, preferably 420-2
000 denier, more preferably 850 to 1890 denier.

Natural fibers and metal fibers can also be used, and twisted and mixed yarns can also be used.

The carp fire-resistant coated yarn of the present invention contains Hanawa-hivinyl resin, plasticizers (4), (B) and (C), a fire-burning agent 1), and other compounding agents mentioned above as necessary. A vinyl chloride paste resin sol prepared by a known method is mixed into the core thread,
For example, it can be obtained by passing it through a sizing nozzle and heating it to form a liquid. The resulting covered yarn can be reticulated into a suitable net-like structure and then fused at all overlapping points of the covered yarn to form a flame-retardant network structure.

The mesh opening of this flame-retardant thread network may be appropriately selected depending on the intended use, but it is generally 9 m/m or less. Depending on the application, the opening can be as small as about 1 inch.

In this case, it is preferable that the weight ratio of the core yarn of the thread to be threaded and the vinyl chloride paste resin sol is 35 to 15 times the core yarn and 65 to 85 times the vinyl chloride resin sol. When the ratio of core yarn exceeds 35, it is difficult to obtain a coated yarn with good flame retardancy that is uniformly coated, and when the ratio of core yarn is less than 15, it is difficult to obtain a coated yarn with good strength. Undesirable. The thickness of the affected layer (the arithmetic mean of the maximum and minimum thickness of the thread cross section; if the thickness is equal, the thickness itself) is at least 10μ
, for example 10 to 500μ.

Furthermore, in this study, we found that, as described above, when a flame-retardant coated yarn network is desired, which is particularly suitable for use as a construction curing net, a blowing agent is added as a component of the vinyl chloride resin sol. ``f'' is applied, foamed in the yarn manufacturing process, made into a net, and the overlapping points of the cut yarn are polished to produce an elastic coated yarn network. You can also do it.

The reticular body composed of the flame-retardant thread of the present invention is txpK
Although it can be suitably used in a wide range of arbitrary shapes as a curing net for construction and civil engineering work, it can also be used for other purposes such as safety nets, protective nets, barrier nets, etc. It can also be used for various sports applications such as barrier nets for tennis courts and golf practice ranges. In addition, it is used for agricultural purposes, houses,
It can be used for a wide range of purposes including the same month.

Hereinafter, the performance of the adhesive coated yarn network of the present invention will be further explained in detail using Examples as well as Comparative Examples. The various performance test methods and evaluations were conducted as follows.

(1) Flammability test", the test is conducted in accordance with JIS L-1091.

A specimen measuring approximately 350 x 25 (1++ x) is cut and prepared from the coated yarn network.

■ Heating test for 1 minute The test piece was attached to a rod and heated for 1 minute with a micro burner set to a step length of 45mm (7, afterflame time (seconds), no residue left). Measure the time (seconds) and charcoal area (,L).

Afterflame time: The time from the end of heating until the test piece continues to burn with a flame (Seb).

Residue time: The time (in seconds) from the end of heating until the test piece remains flameless and stops burning.

Carbonized area: Carbonized area *<,i>.

@ Heating and mixing for 3 seconds after ignition: The test specimen was heated in the combustion test box in the same manner as above with a micro burner in some cases, the flame was removed 3 seconds after ignition, and the afterflame time, residual time and Carbonization area meeting 11 points. In the evaluation, the smaller the measured value, the better the flame retardancy.

0 Flame contact test Cut and prepare a test piece to 11100mm long and 200cm long.Adjust the length of the burner flame to 45cm long without the support coil attached. Insert it into the center of the coil and hold it in the combustion test box at a 45° inclination.Adjust the burner flame to follow the bottom edge of the specimen in the specimen support coil, until the specimen melts. While heating, heat until the furnace completely stops burning.The remaining test piece was repositioned once in a position where the hook would fit around the lower end of the vine, and a test test was performed in the same manner as in JA■1rJl. The 90th cut from the bottom end is the 17th mark and repeat this operation with the burning knife.

The number of times of flame contact (times) is determined by f4.

(11) Tensile test: Test according to JIS L1068.

■ Tensile strength K9) and elongation (7yI/m) 4111
Prepare a test piece with a width of 30 mm and a receiver of 30 mm by cutting it in the vertical and horizontal directions from the net-like body. This test piece was subjected to a constant-speed tension type Shun's proboscis tensile test method.
Tensile speed 20±1儂/m? , Measure the weight of the cut and sown seeds (Kg) and the elongation (,,) drawn by n.

(iii) Spinnability (non-glued baggage yarn formation ability) The core yarn is coated with a vinyl chloride resin sol and the spinning performance is visually inspected and evaluated.

○; Sauce, covered 9 ◇ Evenly 7° D: No sagging, some unevenness.

△: There is unevenness in sagging and coating.

×: The sauce and haiku are uneven.

(1v) Appearance of auxiliary yarn, test The drawn yarn of Italy which was glued with thinning vinyl resin sol + fi jF) on the core yarn, surface smoothness with flesh + 1r # and groove after 2 months of waste removal. The breed's #services are evaluated.

■　Surface smoothness 01 Surface is smooth and uniform.

D: Slightly uneven.

△: A little bit present.

×; There are unevenness.

@ Bleed ○: No 17 D; Slightly present Δ; Slightly present
Measured at 0V-6 and rotation speed 12ryn. Then 30℃ at 32℃
The state of the sol after being left for days was evaluated.

○; When the viscosity change is less than 10,000Cp8, nine threads change f
l = Potato D: Viscosity change is 10,000 to 20,000 cps and spinnability is somewhat poor △: Viscosity change is 20,000 to 30,000 cps and spinnability is poor ×; Viscosity change is 30,000 cps or more and spinnability is very poor Examples 1. Into a planetary mixer (capacity NJ251, manufactured by Shinagawa Kako Co., Ltd.), as shown in 1 of Table 1, add a resin for salt hydrinyl yeast (manufactured by Mitsubishi Monzanto Kasei Co., Ltd.: trade name, Vinyryoku). P-450; P.

1500-1600: Particle size; 1μ or less) 100 pieces were added to the vinyl chloride-based ZeIII! -' 10071
(For the C part, 'l) 30 parts of di-2-ethylhexyl phthalate, (B)) 40 parts of licresyl phosphate, (C) Salt and rough in <Ct.

40ch) 15-width part (gradually added over about 20 minutes while stirring. After stirring for about 20 minutes at ω1, Cα-
Zn-based creeping stable cutting 3 Reibu, trioxide/chimony 5@jR
Add 1 part of calcium carbonate, 3 parts of phthalocyanine green over about 20 minutes while stirring.

After the addition, the mixture was further stirred at room temperature for about 1 hour. Next, under reduced pressure 5
0v+x#(vacuum defoaming for about 1.5 hours at 7
CpS (B-type viscometer, rotor V-6, 12 rpm, 2
Solke's acquisition of vinyl chloride (measured at 5°C).

Put the sol in the pass, then 1000 denier, I? Reester's multifilament core yarn is pinched with a pinch roll, passed through the guide roll through the thread, and then the core yarn is passed through a hole (hole diameter:
1,7th, /ηLφ) and a hole through which the sol for pine 4Nf passes (hole diameter 1., Q m, /ηLφ). ia, and the I-liester core yarn was covered with QI3 sol. The thus obtained grade rθ strand was heated in a heating furnace (length 5 m) at 180°C for 10
The strand was subjected to yph at vL/min to produce a thread of 4100 denier.

This was then rapier woven with a mesh plain weave of 21 warp threads/1°σ and 21 weft threads/1o sigma for 50 s/m.
Weaved at a speed of in. Next, this tableware was heated in a tenter heating furnace at 190° C., and the points of difference between the warp yarn and the weft yarn were thermally fused to obtain the eaves of the present invention, the net-like body of the silk yarn.

The results of measuring various performances of this net-like body are shown in Table 2 of Table 1.
Shown below.

Example 2 According to the conditions of Example 1, the test was carried out using the Qj agent system and compounding agent shown in Part 1 of 1, and as shown in Table 2 of &<1, the core thread was nylon multifilament 189° de. Also,
The inner diameter of the inner tube of the double tube sizing nozzle is 0.9 m/
mφ, the inner diameter of the outer tube is 1. : 17 L/mφ, and a 1ift flammable yarn network was prepared in the same manner.

The results of measuring various performances of this mesh are shown in Table 1.
Shown below.

Examples 3 to 21 and Comparative Examples 1 to 22 According to the conditions of Example 1, 1 (invention and 24
42 Using the plasticizer system and compounding agents shown in Table 1 (Comparative Example), the network of flame-retardant coated yarn of Examples 3 to 21 and Comparative Example 1 were prepared.
~22 net-like bodies were obtained, but the ones of Comparative Example 3 and Comparative Example 5 had poor spinnability, so they had a constant denier of 1+υJ'
! Flammability tests and tensile tests of the "silk" could not be performed because no yarn was obtained.

The results of measuring various performances are shown in Table 1, 2 (invention) and Table 2, 2 (comparative example).

As is clear from comparing 2 in Table 1 and 2 in Table 2,
The net-like bodies made of the female combustible fibers of the present invention in Examples 1 to 21 all had poor performance, whereas the sol stability in Comparative Example 1 was poor, and the stability of the sol in Comparative Example 2 was poor. , 4 and 7 were particularly poor in the flammability test and test, and all were unsuitable as a flame-retardant Jl+i yarn network.

Claims (1)

[Scope of Claims] 1) In a covered yarn network formed by coating a core yarn with a vinyl chloride resin sol and gelling the coated yarn, and then fusing the overlapping points of the covered yarn, The composition of the vinyl chloride resin sol is 20 to 60 parts by weight of a (pho)phthalate ester plastic to 100 parts by weight of the vinyl chloride resin.
n! t, (B) 15 to less than 60 parts by weight of phosphoric acid ester plasticizer, (C) 5 to less than 25 parts by weight of halogen-containing plasticizer, 0)) and (5) + [F]) + (C) A retardant and flame-retardant coated yarn network, characterized in that the total amount of plasticizers is 60 to 100 parts by weight, and (2) further contains 2 to 20 parts by weight of an inorganic flame retardant. 2) The flame-retardant coated yarn network according to claim 1, wherein the core yarn is polyester, nylon, or a strong monofilament or multifilament. 3) The flame-retardant raw coated yarn network according to any one of claims 1 to 2, wherein the core yarn has a denier of 850 to 2'ooo, and the covered yarn has a denier of 3,000 to 10,000 denier. 4) The flame retardant coated yarn network according to any one of claims 1 to 3, wherein the inorganic flame retardant contains antimono trioxide. 5) The weight ratio of the core yarn and the vinyl chloride resin sol is
The flame-retardant coated yarn network according to any one of claims 3 and 1 to 4, which contains 5 to 155 to 15 parts by weight of the nil-based resin sol and 65 to 85 parts by weight. 6) A core yarn is coated with a vinyl chloride sol containing a foaming agent, and foamed in the gelling gap.
The flame-retardant coated yarn network according to any one of Item 5. 7) The flame-retardant coated yarn network according to any one of claims 1 to 6, wherein the flame-retardant coated yarn network is a construction curing net.