KR20170013788A - flame retardant net and webbing manufacturing methods - Google Patents

Abstract

The present invention relates to a method for manufacturing, for example, flame retardant net and webbing, bungee, and pocket used mainly in a car and, more particularly, to a method for manufacturing, for example, flame retardant net and webbing, bungee, and pocket to which dioxin and flame retardant capable of reducing toxicity in the event of endocrine disrupter and fire are added. The present invention includes: a step in which polypropylene (PP) is heated to 220 degrees Celsius to 260 degrees Celsius and turned into cylindrical PP resin (111) grains; a step in which polypropylene (PP) is heated to 220 degrees Celsius to 260 degrees Celsius with a color added and turned into cylindrical master batch 1 (112) grains; a step in which polypropylene (PP) is heated to 162 degrees Celsius to 222 degrees Celsius with a liquid or powder flame retardant mixed and turned into cylindrical master batch 2 (113) grains; an extrusion (120) step in which stirring is performed after discharge (110) of the cylindrical and pellet-shaped grains of PP resin (111), master batch 1 (112), and master batch 2 (113); a melting (130) step in which the mixed pellets are vaporized by being re-heated to 162 degrees Celsius to 222 degrees Celsius; and a step in which the molten (130) mixture is spun (140). The spun (140) fiber is stretched (150), is wound (160), and then is given the form of a yarn (170). Then, it is woven (180) into the form of net and webbing, bungee, pocket, or the like to be turned into a product (190).

Description

FIELD OF THE INVENTION The present invention relates to flame retardant net and webbing manufacturing methods,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a flame retardant net and a webbing, an address, and a pocket pocket, which are mainly used in automobiles, and a method of manufacturing the flame retardant FLAME RETARDANT) to the flame retardant net and webbing.

Flame retardant (FLAME RETARDANT), which is a flammable material such as plastic and chemical fiber, is a chemical added to prevent fire damage. (P) system, silicone system, nitrogen system, chlorine system, triazine compound, zinc borate, molybdenum compound, tin compound, ammonium phenol phosphate, metal compound, ferrocene compound, flame retardant There is a kind. It is used mainly in automobile net, webbing, bungee, pocket bag, etc. Bromine and phosphorus flame retardant are described in more detail; In the case of brominated flame retardants, they are classified as substances regulated by advanced countries because they are harmful to human body due to odor and environmental hormone generation, and their use is reduced in various industrial fields. In Korea, dioxin is not generated in the event of a fire, and the flame retardant is replaced with a flame retardant of a low environmental hormone. Examples of the brominated flame retardants include DBPO, DBDPE, TBBA, BPS, HBCD, and other additives such as MCA, APP, MPP, ZINC BORATE, magnesium hydroxide, aluminum hydroxide, chlorinated paraffin, masterbatch, antimony trioxide, antimony substitute LHX- There are many kinds such as OP, CFC-113 substitute, SOLKANE, HCFC-141B, NMP, PVP, 1.2-Dichloropropane and MAN. Generally speaking, flame retardant net and webbing used for automobiles include several kinds of brominated flame retardants such as Decabde and Decaxx Regulated flame retardants are still in use. Previously used halogen-based flame retardants are mostly organic compounds containing bromine. Halogen elements such as bromine and chlorine are called synergism effects when antimony is present. Because of these synergistic effects, it is common to use halogen flame retardants and antimony trioxide,

As the damage to environment hormones is known, it is time to prefer the flame retardant net made of flame retardant which is harmless to the human body in the automobile industry, and the webbing, bungee, and pocket bag, but it is urgent to select the materials that can satisfy the price and performance. to be.

Tris (2-chloroethyl) Phosphate, TCPP: Tris (2-chloropropyl) Phosphate, IPPP: Isopropylated Triphenyl Phosphate, TDCPP: Tris (1,3-Dichloro-2-Propyl) Phosphate, DMMP: Dimethyl Methyl Phosphate, TEP: Triethyl Phosphate, BDP, RDP,

As for the phenomenon of flame retardant and future trends, many kinds of flame retardants are mainly used for bromine and phosphorus, and silicon flame retardant, triazine compound, zinc borate, molybdenum compound, tin compound and the like are increasing little by little Is the elongation of the phosphorus (P) compound. Although some of the future elongation is discussed and safety hygiene is being discussed, it is certain that the flame-retardant agent will gradually take on the role of the non-halogen flame retardant agent.

In addition, Decablo flame retardants are decreasing due to environmental problems, but demand is still maintained mainly in the backward industry. The most demanded material is TBBA, which is used alone as a flame retardant epoxy resin, especially for semiconductor encapsulating materials and copper clad laminate, while TBBA epoxy oligomer, TBBA polymeronate oligomer, TBBA 2,3 juglolpropyl ether It is also used as an intermediate material. Other flame retardants that are increasingly in demand as non-decabeling flame retardants include brominated polystyrene, ethylene bispentabromodiphenyl, and ethylene bis tetrabromophthalimide. Demand is steadily declining in recent years.

Silicon-based flame retardants, which are currently attracting attention as environment-friendly flame retardants, are commercially available from Japan's silicon makers, such as DC4-7045, DC4-7051, DC4-7081, XC99-B5664 and EPX- And is used as a flame retarding additive for polyolefins, but its amount is small. The silicone-based flame retardant exhibits excellent flame retardancy when used alone or in combination with a hydrated metal compound, phosphorus (P) compound, fatty acid metal salt, fumed silica, etc. in combination with a highly compatible polymer. Special combustion barriers are produced and high flame retardancy is recognized, but it is expensive and difficult to apply to fiber side. It is mainly applied to high quality plastic products such as automobile net, webbing, bungee, pocket bag etc. to be.

Since brominated flame retardants have effective flame retardancy, demand for flame retardants, which are the most representative flame retardants, is expected to increase in the automobile industry.

However, products coated with a flame-retardant flame retardant must be extruded (120) and then melted (130) in the manufacturing process. However, since the flame retardancy is lost due to heat during the melt 130 process, In general, there is no use in netting, webbing, padding, pocket bag, etc. In particular, phosphorus-based flame retardant (P) system has a problem that it can not be used because it is weak against heat. Therefore, development has not progressed, The present invention is still in the production of an unsophisticated form in which the flame-retardant solution is merely dipped into the container at the final stage of the production line and coated.

In the present industry, net and webbing made by dipping flame-retardant agent, address, pocket pocket, etc. will be described in more detail. We can weave PP or PET yarn and container that can contain liquid flame retardant at the end of existing production line. The material is dipped in a direction perpendicular to the line, and the material is subjected to a drying process by passing through a drying furnace and drying with hot air. Thus, the production line is complicated and prolonged, and the production is time-consuming. There are two major problems with this product. Firstly, when the internal temperature of the automobile is raised, the dipped coating flows along with the smell to the user, which is uncomfortable to the user. Secondly, the dipped coating causes direct sunlight or moisture There is a serious problem that the flame retarding effect is lowered with time as the coating is eroded.

As described above, in order to weave the manufactured yarn 170 in the form of net, webbing, address, pocket bag, etc., and to coat the flame retardant at the end of the production line, a liquid flame retardant is placed in the container, The polypropylene (PP) material, unlike ordinary fibers, has no absorbency and permeability, so that the liquid flame retardant is not coated on the fiber itself, so that the flame retardant The surface of the flame retardant is eroded when exposed to the moisture or exposed to the sun or over time, and the effect is remarkably deteriorated. In addition, attempts have been made to blend polypropylene (PP) with a flame retardant in the form of a liquid or a powder in various ways. However, stirring due to the retardation phenomenon has been a problem, and various flame retardant components have reduced the strength of the yarn And because of the temperature of the molten (130) stage in which the heat is applied in the pre-spinning stage 140, phosphorus chemical elements belonging to the non-metal type in the case of the phosphorus type flame retardant are polyvalent phosphorus phosphates belonging to the P nitrogen group It is very rarely found in the form of pure phosphorus in the natural state because there is a high reactivity to be found in the cells of all organisms and there are various isomers such as white phosphorus (or yellow phosphorus), red phosphorus, It is a component used for matches, fireworks, pesticides, toothpaste, detergent, etc., and is lost when heat is applied, so that flame retardancy is not well known.

In order to solve such a serious problem, a manufacturing method of a flame retardant net, a webbing, an address, and a pocket pocket according to the present invention is characterized in that polypropylene (PP) as a raw material 100 is made into a columnar grain PP RESIN 111 % To 94% by weight;

One step to make 3% ~ 5% by making MASTER BATCH 1 (112) in the shape of a cylinder containing color in polypropylene (PP). More specifically, the MASTER BATCH 1 112 contains 45% to 56% of polypropylene (PP), 36% to 40% of carbon, 5% to 10% of wax, 3% to 5% of Zn- %,

A polypropylene (PP) is mixed with various flame retardants in liquid or powder form to make granules of MASTER BATCH 2 (113) in the form of cylinders so that 3% ~ 10% can be mixed. More specifically, the content of MASTER BATCH 2 (113) is 39% to 50% of polypropylene (PP), 42% to 46% of flame retardant, 5% to 10% of wax, 3% to 5% of Zn- %,

Mixing each of the pellets made of the granular pellets in a feeder (110) and an extruder (120) through a feeder connected to a siro;

Extruding (120) to heat and melt (130) the agitated pellets;

Spinning (140) the molten (130) liquid form mixture;

(150) the fibers (140) that have been spinning (140) to weave (180) in the form of net, webbing, address, pocket bag, and the like.

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SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a polypropylene (PP) film for preventing flame retardancy even after exposure to water, ultraviolet rays, When the raw material 100 is fed (110) so that the yarn 170 itself contains flame retardant properties including the phosphorus (P) component in the course of manufacturing the yarn 170, various flame retardants A flame retardant net and a webbing made of a flame retardant yarn 170 made by injecting at least one of a bromine-based, phosphorus-based, silicone-based, triatin compound, zinc borate, molybdenum compound, , An address, a pocket pocket, and the like.

The present invention as described above will be described in more detail. A yarn 170 having undergone a process in a state of MASTER BATCH 2 (113) containing various flame retardants in polypropylene (PP) is manufactured, It is possible to produce various products by weaving in a form.

Accordingly, the products produced by the yarn 170 containing various flame retardants have a flame retardant content in the case of fire, and the flame retardancy is comparatively high compared with the conventional technology of the bromine flame retardant, but the environment hormone type harmful substances such as halogen The flame retardant is added to the yarn 170 itself, and the flame retardant is added to the yarn 170 itself so that the flame retardant is blended at a ratio of the composition table of Fig. 2, Since it does not lose its component even if heat is applied after the contact with moisture or sunlight with time, it is possible to supply a product having good durability against flame to consumers.

However, as described above, the flame retardant based on flame retardant has a property of being melted and vaporized when heat is applied. As a method of producing yarn mixed with polypropylene (PP), a phosphorus (P) As an alternative to overcome this problem, first, various flame retardants are blended with polypropylene (PP) in advance to make a pellet shape of a cylinder, and various flame retardants The heating time is shortened so as not to lose various flame retardant materials in the second master batch 2 113, and the third temperature is adjusted to the lowest one of the effective temperatures to be melted (130). The melt temperature of the polypropylene (PP) is 162 ° C or higher, and the temperature for producing a general yarn is 220 ° C to 260 ° C. In the present invention, the melt 130 temperature is 162 ° C To 140 DEG C lower than the temperature lowered to 222 DEG C and higher than when the temperature is lowered to 220 DEG C to 260 DEG C to minimize the loss of flame retardancy as a main component of MASTER BATCH 2 (113) . Also, if too much flame retardant powder is added to the flame retardant, the strength of the yarn may be lowered or cause a single yarn. Therefore, the local ratio of the pellet of MASTER BATCH 2 (113) should be less than 10% 3% or less), thereby minimizing the cross-sectional loss of the yarn 170 and maintaining the flame retardancy of the MASTER BATCH 2 113 without affecting its strength.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a manufacturing process diagram showing a manufacturing process of a flame retardant net, a webbing, an address, and a pocket bag according to the present invention.
Fig. 2 is a composition table of a polypropylene (PP) yarn containing a flame retardant according to the present invention.
3 is a graph showing the contents and contents of pellet grains such as PP RESIN 111, MASTER BATCH 1 112 and MASTER BATCH 2 113, which are raw materials 100 according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view showing a process of manufacturing a flame-retardant net according to an embodiment of the present invention, a manufacturing process showing a manufacturing process of a webbing, an address and a pocket bag, The raw material 100 is fed 110 in accordance with the pellet ratio of the master batch 1 112 and the master batch 2 113. The raw materials are passed through the extruder 120 and heated to 162 to 222 캜 When the liquid raw material melt 130 is radiated (140) at a pressure higher than the existing spinning pressure and uniaxially stretched in the longitudinal direction of the roll, the stretching (150) is performed in such a manner that the molecular arrangement is arranged in the pulled- And then the yarn 170 is wound in the form of an actual yarn 170 by applying a predetermined tension. The next step in the manufacturing process of the flame-retardant net, the webbing, the address, the pocket bag, etc., is to move the yarn 170 to a loom and weave 180 the web 190, And a manufacturing process showing the process. The feed rate of the raw material 110 is such that the average of PP RESIN 111 is 89%, MASTER BATCH 1 112 is 4%, MASTER BATCH 2 113 is 7%, and MINMUM% The MAXMUM% is described in FIG.

MASTERBATCH is a material obtained by dispersing and kneading functional materials and coloring materials such as PLASTIC at a high concentration. It is divided into sheet, liquid, beads, and pellet shapes in shape and mainly used as a pellet image as in the present invention. The pellets are divided into PP RESIN 111, MASTER BATCH 1 112 and MASTER BATCH 2 113 for each material and then processed into pellets according to the ratio of the feed 110 of the raw material 100 in the production line use.

FIG. 2 is a component table of a polypropylene (PP) yarn 170 containing a flame retardant to which an embodiment according to the present invention is applied. As described above, the compounding ratio of PP RESIN 111 is 89% , MASTER BATCH 1 (112) and MASTER BATCH 2 (113) are average 4% and 7%, respectively. Particularly, when the flame retardant content is larger, the flame retardancy is stronger. (PP) RESIN (111) is 85% to 100% in the case of the elongation (150) or the winding (160) 94%, 3% to 5% for MASTER BATCH 1 (112) and 3% to 10% for MASTER BATCH 2 (113). Particularly, when the pellet type MASTER BATCH 2 (113) exceeds the local 10% (NET 3% of the flame retardant), the cross section of the yarn 170 is lost as described above, (Net 3% of flame retardant) and 10% (net 3% of flame retardant) of average local 7% (flame retardant NET 2%) were added to keep the flame retardancy and the tensile strength of yarn 170 It does not affect strength.

FIG. 3 shows the composition and content of three pellets such as PP RESIN (111), MASTER BATCH 1 (112), and MASTER BATCH 2 (113) according to the ingredients and contents of the raw materials to which one embodiment of the present invention is applied. And the like. PP RESIN (111) is often referred to as PP resin and is made by polymerizing propylene in gas which is generated by the secondary gas during petroleum refining. It is easy to mold with crystalline (crystalline) thermoplastic resin. It has the lowest specific gravity in fiber and low cost. But it has high strength and excellent water resistance and solvent resistance. It has no absorbency and it is difficult to coat or adhere. . However, since the dyeing is not good, it is a material difficult to separately coat other than the color possessed by the fiber itself, and other than impurities, 100% PP resin occupies. MASTER BATCH 1 (112) contains about 45% ~ 56% of polypropylene (PP) which is the same component as PP RESIN (111). In addition to carbon black for coloring, other colors can be used. And about 5% to 10% of paraffin wax is added for spinning 140, stretching 150 and winding 160 of the yarn 170 in the manufacturing process of the yarn 170, It is a substance made into pellets by adding within 5%. MASTER BATCH 2 113 contains about 39% to 50% of polypropylene (PP), which is the same component as PP RESIN 111. For flame retardancy, the flame retardant is stirred within about 40% to 36% 170 to about 5% to 10% by weight of paraffin wax and about 3% to 5% by weight of Zn-st for spinning (140), stretching (150) And the three materials are raw materials 100 that can be made into a flame retardant net, webbing, address, pocket bag, or the like.

100: raw material PP RESIN 111, MASTER BATCH 1 112, MASTER BATCH 2 113,
110: Transmission - The loader is controlled at an output rate of 89% on average for the PP RESIN (111), 4% on the MASTER BATCH 1 (112), and 7% on the MASTER BATCH 2 (113)
111: PP RESIN - Pelletized PP (the basic polymer abbreviation of ISO 1043-1), POLYPROPYLENE (FR160)
112: MASTER BATCH 1 (pellet type CMB91-255R)
113: MASTER BATCH 2 (pellet type FLAME RETARDANT)
120: extrusion - stirring in extruder.
130: Melting - The temperature for making common yarns is 220 ° C to 260 ° C but 162 ° C to 222 ° C.
140: Radiation-pressure regulation in inverse proportion to rising temperature.
150: stretching - uniaxially stretching in the longitudinal direction.
160: Winding - maintaining constant tension.
170: Yarn
180: Weave - band, webbing, net, bungee rope.
190: Products - Flame retardant net, flame retardant webbing, flame retardant band, flame retardant, flame retardant pocket.

Claims (6)

Heating the polypropylene (PP) to 220 DEG C to 260 DEG C to make the PP RESIN (111) granules in a cylindrical shape;
Heating to polypropylene (PP) at 220 ° C to 260 ° C to form a columnar MASTER BATCH 1 (112) granule containing color;
Heating the polypropylene (PP) to 162 ° C to 222 ° C to mix the flame retardant (FLAME RETARDANT) in a liquid or powder state to form a columnar MASTER BATCH 2 (113) granule;
Extruding (120) the pellet shaped particles PP RESIN (111), MASTER BATCH 1 (112), and MASTER BATCH 2 (113) made into the cylindrical shape by sending (110) and stirring;
Melting (130) heating the mixed pellets again to 162 ° C to 222 ° C to liquefy;
Spinning (140) the melted (130) mixture;
A step of winding the yarn 140 after the stretching 150 and winding the yarn 140 into a yarn 170 to form a product 190 by weaving 180 in the form of net, webbing, address, pocket bag, And the webbing is produced by the method. A method of manufacturing a net, a webbing, an address, a pocket bag, etc. used for automobiles, etc., comprising the steps of: making polypropylene (PP) into a columnar PP RESIN (111) granule;
Heating the polypropylene (PP) to 220 DEG C to 260 DEG C to make the PP RESIN (111) granules in a cylindrical shape;
Heating to polypropylene (PP) at 220 ° C to 260 ° C to form a columnar MASTER BATCH 1 (112) granule containing color;
Heating the polypropylene (PP) to 162 ° C to 222 ° C to mix the flame retardant (FLAME RETARDANT) in a liquid or powder state to form a columnar MASTER BATCH 2 (113) granule;
Extruding (120) the pellet shaped particles PP RESIN (111), MASTER BATCH 1 (112), and MASTER BATCH 2 (113) made into the cylindrical shape by sending (110) and stirring;
Melting (130) heating the mixed pellets again to 162 ° C to 222 ° C to liquefy;
Spinning (140) the melted (130) mixture;
When the yarn 140 is wound 150 after the stretching 150 and becomes a yarn 170, it is woven 180 in the form of net, webbing, address, pocket, etc. to make the product 190 The PP RESIN 111 supplied at the time of feeding the raw material 110 is sent at a rate within the range of 85% to 94%, 3% to 5% for the MASTER BATCH 1 112 and 3% to 10% for the MASTER BATCH 2 113 110). ≪ / RTI > The method according to claim 1 or 2, further comprising: extruding (120) the pellet shaped particles PP RESIN (111), MASTER BATCH 1 (112), and MASTER BATCH 2 (113) Further comprising the step of adding (110) another particle of a columnar form mixed with the PP RESIN (111) and an antimicrobial agent. The flame retardant composition according to claim 1 or 2, wherein a flame retardant (FLAME RETARDANT) in the form of a granular MASTER BATCH 2 (113) granule mixed with a liquid or powdered flame retardant (PP) (P), silicon, nitrogen, chlorine, triazine, zinc borate, molybdenum compounds, tin compounds, ammonium phenol phosphate, metal compounds, ferrocene compounds, flame retardant additives and migration inhibitors Characterized in that the flame retardant is one of two or more flame retardants (FLAME RETARDANT). The flame retardant net according to any one of claims 1 to 7, wherein the flame retardant net and the webbing, the address, the pocket bag, etc. are partially or entirely woven (180) containing 25% to 65% A method for manufacturing a webbing. The method according to claim 1 or 2, wherein the feed amount of the pellet-shaped granules in the form of a cylinder at delivery (110) of the raw material (100) is 89% for PP RESIN 111, 4% for MASTER BATCH 1 (110) at a rate of 7% as an average. ≪ RTI ID = 0.0 > 11. < / RTI >

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