WO2016021813A1 - Method for producing polypropylene double wall material - Google Patents

Abstract

The present invention relates to a method for producing a polypropylene double wall material, and provides a method for producing a polypropylene double wall material. The polypropylene double wall material produced according to the present invention is reusable, and is thus eco-friendly, and shows excellent effects of ultralight weight, non-toxicity, economic efficiency, processability, durability and weather resistance.

Description

Manufacturing method of polypropylene double space paper

The present invention relates to a method for producing a polypropylene double space paper using a polypropylene fabric.

Recently, the EU, US, and Commonwealth countries have tightened regulations on the use of polyvinyl chloride (PVC). Accordingly, countries around the world have tried to develop various resins to replace polyvinyl chloride. In terms of processability and economy, no resin has been developed that can be compared with polyvinyl chloride.

Double spaces are generally manufactured by coating a polyvinyl chloride resin or thermoplastic polyurethane (TPU) resin on a polyester double space fabric, but a double space is produced by coating a polyvinyl chloride resin on a polyester double space fabric. When discarding after use, it is difficult to separate the coating material of polyvinyl chloride resin and polyester double space fabric, and it is incinerated because of high recycling cost.There is a serious problem of generating dioxin and toxic gas during incineration. Increasingly, regulations on phthalate plasticizers, which are environmental hormone regulatory substances, are intensifying.

In addition, the double space produced by coating the TPU resin on the polyester double space fabric cannot be applied to the calender method or sol coating method used for polyvinyl chloride in processability, and can be produced only by the extrusion T-Dies method. There is a restriction on the production equipment and the TPU resin, which is a coating material, is expensive and inferior in economic efficiency, and is poor for hydrolysis resistance and ozone resistance, and is particularly unsuitable for marine sports, and there is a limit to use in outdoor due to severe yellowing of ultraviolet rays. In addition, it is difficult to separate the TPU resin and the polyester double space fabric of the coating material when discarded after use, and the recycling cost is high, thereby incinerating waste. There is a serious problem of generating hydrogen cyanide and toxic gas during incineration. In addition, the double space produced by coating a polyvinyl chloride resin or TPU resin on the polyester double space fabric has a hassle to undergo a lamination process using an adhesive.

Background art of the present invention is disclosed in Korean Patent Registration No. 0690935 (2007.02.27).

It is an object of the present invention to provide a process for producing a bispace paper using a polypropylene bispace fabric without using a polyester bispace fabric.

In order to achieve the above object, the present invention comprises the step of coating the polypropylene modified compound composition on both sides of the polypropylene bi-space fabric, wherein the polypropylene modified compound composition is based on 100 parts by weight of olefin block copolymer, polypropylene 50 to 100 parts by weight, 0.1 to 50 parts by weight of polypropylene modified elastomer, 0.1 to 50 parts by weight of polystyrene-based modified elastomer or polyolefin rubber, 0.1 to 20 parts by weight of inorganic filler, 0.1 to 1.0 parts by weight of antioxidant, 0.1 UV absorber 0.1 To 2.0 parts by weight, 0.1 to 3.0 parts by weight of the processing lubricant, and 1 to 15 parts by weight of the colorant provides a method for producing a polypropylene double space paper.

First, the present invention has an excellent workability by applying the extrusion T-Dies method using a polypropylene modified compound composition in the production of polypropylene double space.

Second, the present invention does not generate toxic gases such as dioxin and hydrogen cyanide when incinerated, and does not generate volatile organic compounds (VOCs) in the manufacturing process because the adhesive method does not use a liquid adhesive of an organic solvent type. Since it is irrelevant to air pollution, the double space fabric and coating material used as the core are 100% recycled, and it is 100% recyclable, and it does not use phthalate plasticizer, which is an environmental hormone regulatory substance, which is harmful to human body. Indicates.

Third, since the present invention does not use a phthalate-based plasticizer, which is an environmental hormone regulating material, it is very excellent in preventing pollution by pigment migration that occurs during the production of a double space structure in which human contact occurs due to the plasticizer.

Fourth, the present invention has the effect of exhibiting the physical properties of replacing the conventional double space paper coated with polyvinyl chloride on the polyester fiber, very light in nature and excellent air tightness effect is very important in the air structure There is.

1 shows an extruded resin compound production system for producing pellet type polypropylene modified compound compositions,

Figure 2 shows an extrusion T-Dies coating method for the production of polypropylene bi-space paper.

50 parts by weight of polypropylene (Lotte Petrochemical, L670M), 50 parts by weight of polystyrene-based modified elastomer (Kuraray SEPS), 10 parts by weight of calcium carbonate (Omiya M5), based on 100 parts by weight of olefin block copolymer (Dow I 9807), 0.4 parts by weight of pentarisititol tetrakis (3- (3,5-di-thi-butyl-4-hydroxyphenyl propinate), 0.6 parts by weight of hinderedamine, 1.6 parts by weight of fatty acid amine, 0.2 parts by weight of fluororesin, and A polypropylene compound composition for polypropylene double space paper double-side coating comprising 10 parts by weight of a colorant was prepared.

Hereinafter, the preferred embodiments of the present invention and the physical properties of each component will be described in detail so that the present invention can be easily described in detail so that those skilled in the art can easily carry out the invention. It is not intended that the technical spirit and scope of the present invention be limited.

The polypropylene double-space fabric according to the present invention is a polypropylene multifilament of 300 denier to 500 denier non-twisted using a polypropylene monofilament having a single yarn strength of 6.2 gf / d to 8.0 gf / d produced by the melt spinning method. A yarn comprising 25 mm to 400 mm of space yarn between two layers of tricot tissue woven with a russel loom with a weaving density of 10 to 30 and a weft yarn of 10 to 30 per inch using a yarn.

When the single yarn strength of the polypropylene monofilament used when weaving the polypropylene double space fabric is less than 6.2 gf / d, the tensile strength and tear strength of the polypropylene double space paper to be implemented in the present invention are lowered, resulting in a decrease in product value. For example, if it exceeds 8.0 gf / d, it is not yet mass produced globally, and the price rises exponentially.

The polypropylene multifilament yarn used when weaving the polypropylene double space fabric should use non-twisted yarn, and the polypropylene modified compound composition must partially melt infiltrate between the double space fabric and the double space fabric and polypropylene modified compound composition. The interlayer adhesion between the layers is excellent, but in the case of a flexible yarn, the melt penetration of the polypropylene modified compound composition is not good, and thus excellent adhesion cannot be obtained.

The polypropylene multifilament yarn used when weaving the polypropylene double space fabric should be used having a fineness of 300 to 500 denier, but when the diameter is less than 300 denier, the fineness is low, so the tensile and tear strength of the double space is very low. It is suitable for thin clothing, and if it exceeds 500 denier, weaving is difficult, and the surface smoothness of the double space paper is decreased, so the appearance of the polypropylene double space paper becomes bad.

When weaving the polypropylene bi-space fabric, the weaving density is a tricot fabric having a weaving density of 10 to 30 per inch of warp yarn and 10 to 30 per inch of weft warp yarn, which has a weaving density of weft and warp yarn of 1 If less than 10 per inch, the tensile properties, tear strength, etc. of the polypropylene double space paper is lowered and the space sand adheres to the wall surface due to excessive penetration of the coated polypropylene modified compound composition. When the sugar content exceeds 30, more than the physical properties required in the double space paper, only the weight is increased and only the cost of production increases, so the weaving density of the polypropylene double space fabric to be implemented in the present invention is 10 to 30 per inch of warp yarn, per 1 inch of weft yarn. Most preferred are tricot tissue fabrics with weaving densities of 10 to 30.

The polypropylene modified compound composition according to the present invention is based on 100 parts by weight of the olefin block copolymer, 50 to 100 parts by weight of polypropylene resin, 0.1 to 50 parts by weight of polypropylene modified elastomer, polystyrene modified elastomer or polyolefin rubber 0.1 To 50 parts by weight, inorganic filler 0.1 to 20 parts by weight, antioxidant 0.1 to 1.0 parts by weight, UV absorber 0.1 to 2.0 parts by weight, processing active agent 0.1 to 3.0 parts by weight, colorant 1 to 15 parts by weight.

The olefin block copolymer should be selected from at least one selected from the group consisting of ethylene block copolymers, propylene block copolymers, butylene block copolymers, hexene block copolymers and octene block copolymers, and the olefin block copolymers are melted. Melt Index (MI) (190 ° C./2.16 Kg, ASTM D1238) should be a resin of 10 g / 10 min to 30 g / 10 min, hardness A of 50 to 90, and melting point (ASTM D3418, ° C.). ) Is 110 to 130 ℃, elongation (ASTM D638,%) is 600 to 1200%, tensile strength (ASTM D638, psi) 200 to 800 psi.

The polypropylene-based resin is a general homo polypropylene (General Homo PP), a high crystal polypropylene copolymer (HCCP Homo PP), a high crystal block polypropylene copolymer (HCCP Block Copolymer PP), random copolypropylene (Random Copolymer PP ) And butyl tertiary polypropylene terpolymer (tert-PP) at least one selected from the group consisting of, the polypropylene resin has a melt index (Melt Index (MI) (230 ℃ / 2.16Kg, ASTM D1238, g / 10min) should use a resin of 7 g / 10min to 30 g / 10min, the flexural modulus (ASTM D790, kg / ㎠) is 6,500 to 11,000 kg / ㎠, the melting point (ASTM D3418, ℃) is 130 to 160 It is preferable that it is ° C, the softening point (ASTM D1525, ° C) is 90 to 140 ° C, and the elongation rate (ASTM D638,%) is 500% or less.

Polypropylene double space production is using the extrusion T-Dies method, the coating thickness of the polypropylene modified compound composition is easy to coating a variety of thickness from 0.1 mm to 10.0 mm on a single side, the resin flow is less than 7 Due to the poor performance of the extruder, the extruder is heavily loaded and the neck in is so severe that the coating thickness variation between the center and both sides of the double space finished product is not only difficult to produce the product to the desired width, but also to provide the cause of the shape distortion of the finished product. May be caused. In order to overcome this, both side cutting widths must be widened, which may result in a loss. If the melt index is more than 30, it is difficult to apply the extrusion T-Dies method because the flowability is so fast that the coating speed must be increased, and it is difficult to produce products with a minimum coating thickness of 0.35 mm based on one side as well as extrusion T-Dies. The dies must be set at a low processing temperature and the production speed must be too high, resulting in too high an adhesion between the coating resin and the fabric, resulting in poor adhesion between the double space fabric and the coating compound resin, which can lead to failure. In addition, as the production speed increases, it may be difficult to maintain the fabric meandering degree of the double space paper, which may cause a worsening of the warping phenomenon of the finished product manufactured using the double space paper.

Flexural modulus is closely related to flexibility. If it is less than 6,500 kg / ㎠, the resilience against external stress is low, which makes it difficult to recover the wrinkles that commonly occur when rolling the product. / ㎠ exceeds the softness of the polypropylene double space paper gives a stiff feeling and there is a high probability of occurrence of chalk marks, it is necessary to use a number of resins that give a softness when determining the compound composition for coating, which increases the cost of the compound composition and It may lead to a decrease in the adhesion strength may occur.

If the melting point is less than 130 ℃ the thermal stability of the polypropylene double space final product is lowered, if it exceeds 160 ℃ may cause a problem that requires a high processing temperature during manufacturing.

If the softening point is less than 90 ℃, the holding property of the polypropylene double space paper becomes poor, and the embossed double space paper loses the sharpness of the embossed pattern. If the temperature exceeds 140 ° C, the processing temperature is high when embossing. Because of the need for a heavy load on the machine.

In the case of the elongation rate exceeding 500%, since shrinkage by heat occurs easily, the thermal dimension stability of the polypropylene double space paper may be lowered.

The polypropylene-based modified elastomer resin is a polypropylene ethylene copolymerization plastomizer (m-PEPP), a polypropylene octene copolymerization plastomizer (m-POPP), polypropylene hexene copolymerization plasomer (m) -PHPP) and polypropylene butene copolymerization plastomer (m-PBPP) comprises one or more selected from the group consisting of, the polypropylene-based modified elastomer is the elasticity of the coating layer compound composition in the layer constituting the polypropylene bi-space It improves cold resistance, plays a role in suppressing choke marks, and is highly compatible with polypropylene resin.

The polypropylene-based modified elastomer resin is a resin having a MI (Melt Index, Melt Index) (230 ° C./2.16 Kg, ASTM D1238, g / 10 min) of 5 to 15, and a hardness (ASTM D2240, Shore A) of 60 to 80 Total crystallinity is 20% or less.

At this time, when the hardness is less than 60, the tensile strength and tear of the compound composition worsen, and when it exceeds 80, the softness of the compound composition is lowered and the final product polypropylene double space paper becomes stiff. If the total crystallinity exceeds 20, the elasticity and cold resistance may be adversely affected, and the adhesion between the core fabric and the compound composition may be worsened.

The properties of these olefin block copolymers, polypropylene resins and polypropylene-based modified elastomers affect the thermal stability and flexural strength, tensile strength, elongation, and the like in the polypropylene double space final product.

The polystyrene-based modified elastomer or polyolefin-based rubber is polystyrene butadiene copolymer (SBS), polystyrene isoprene copolymer (SIS), polystyrene ethylene butadiene block copolymer (SEBS), polystyrene ethylene propylene block copolymer (SEPS), hydrogenated polystyrene ethylene Butadiene elastomer (HSEBS), polyethylene propylene copolymer rubber (EPM), polyethylene propylene diene polymer rubber (EPDM), polyisoprene rubber, polybutyl rubber and polyisobutylene rubber In addition, it improves the tensile, tearing, flexibility and flexural strength of the polypropylene double space coated with the compound composition.

The polystyrene-modified elastomer or polyolefin rubber is a high elastic elastomer having a tensile strength of more than 3,000 kgf / cm ² and an elongation at break of 800% to 1,500%. Reduces the dimensional stability of heat in double spaces, and when air is injected into the air structure manufactured using the present invention, the dimensional stability is poor, making it difficult to maintain a smooth shape of the air structure, and the rubber and behavior are similar, making secondary processing difficult and costly. It may cause an increase.

The inorganic filler consists of at least one selected from the group consisting of calcium carbonate, talc, clay, magnesite, aluminum hydroxide and magnesium hydroxide. If the content is more than 20 parts by weight, the probability of occurrence of the chalk mark is increased and the specific gravity is increased, thereby inhibiting the lightness, which is a characteristic of the polypropylene double space paper, and may cause air sealing.

The antioxidant is 1,1,1-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 1,3,5-trimethyl-2,4,6-tris (3,5 -Di-tert-butyl-4-hydroxybenzyl) benzene, tetrakis- [methylene-3- (3'5'-di-tert-butyl-4-hydroxyphenyl) propinate], bis [3 , 3'-bis- (4'-hydroxy-3'-tertiary-butylphenyl) butylic acid] glycol ester, 1,3,5-tris (3 ', 5'-di-tertiary-butyl- 4'hydroxybenzyl) -SEC-triazine-2,4,6-trione, 3,5-di-tertiary-butyl-4-hydroxyhydrocinnamate octadecyl, tris (2,4-di- Tertiary-butylphenyl) phosphate, cyclo neopentanetetrayl bis (2,4-di-tertiary-butylphenyl) phosphate and 1,2-bis (3,5-di-tertiary-butyl-4-hydroxy Hydrocinnamoyl) hydrazine, including one or more selected from the group consisting of, these antioxidants prevent the aging of the coating layer of polypropylene bispace To, the effect does not increase even if it exceeds 1.0 parts by weight there is no need to use more than 1.0 parts by weight.

The UV absorber is benzophenone series, phenyl silicate, bis (2,2,6,6-tetramethyl-4-piperidinyl) sebacate, 2- (3'-5'-di-tertiary-butyl-2 '-Hydroxyphenyl) -5-chlorobenzotriazole, 2- (3,5-di-tertiary-phenyl-2-hydroxyphenyl) benzotriazole, 2- (2'-hydroxy-5-methylphenyl ) Benzotriazole, 2- (3'-tertiary-butyl-2'-hydroxy-5'-methylphenyl) -5-chlorobenzotriazole and a hindered amine based UV stabilizer It prevents the change of physical properties of the polypropylene compound composition for polypropylene double spaces from ultraviolet rays, stabilizes, and prevents discoloration and aging to improve weather resistance and light resistance.

The processing agent comprises one or more selected from the group consisting of zinc stearate, oleamide, erucamide, stearamide, behenamide, fatty acid amine and fluororesin, and when used in excess of 3.0 parts by weight of polypropylene double The adhesion of the coating layer of the space paper may be reduced.

This processing agent lowers the coefficient of friction between the extruder cylinder and the screw and the compound composition, thus providing a smooth extrusion during the extrusion process, preventing the residue of the composition on the cylinder and the screw to prevent carbonization of the residue, and continuous production Since T-Dies suppresses the occurrence of fish-eye, it is possible to reduce the surface defect rate of the coating layer of the polypropylene double space paper.

In order to prepare the polypropylene bi-space paper, the polypropylene modified compound composition is first kneaded using a kneader or a mixer as shown in FIG. 1, and the first kneaded composition is put into an extruder and melt mixed. The extrusion conditions are as follows.

Hopper temperature: Room temperature

Cylinder temperature: 140 ℃ to 170 ℃

Die temperature: 180 ℃ to 210 ℃

Single screw type extruder: L / D = 36/1 or more

Twin screw type extruder: L / D = 26/1 or more

The composition extruded under the extrusion conditions is subjected to a water cooling process, cut and pelletized, and dried and stored after undergoing a process of oil and water separation.

As the coating method of the polypropylene modified compound composition, the extrusion T-Dies method is the most preferable method because it does not require an adhesive. Extrusion T-Dies method is a pellet type polypropylene modified compound composition is introduced into the extruder through the extruder hopper as shown in Figure 2 the cylinder temperature of the extruder 250 ℃ to 270 ℃, the adapter temperature of 270 ℃ to 280 ℃, The die temperature is produced by compression lamination with a polypropylene double space fabric while discharging at 280 ° C to 310 ° C. All of the lamination rolls are in the form of cooling rolls and serve as polishing on the coated surface to serve as smoothness and surface embossing of the coated surface. Lamination compression is preferably at least 3.5 Kgf / ㎠.

Hereinafter, examples will be described in detail to help understand the present invention. However, the following examples are merely to illustrate the content of the present invention is not limited to the scope of the present invention. The embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art.

Example 1 Polypropylene Modified Compound Composition Preparation

To 100 parts by weight of olefin block copolymer (Dow I 9107), 50 parts by weight of polypropylene (Honam Petrochemical SFI 841), 30 parts by weight of polypropylene-based modified elastomer (action V6102), polystyrene butadiene copolymer (LG Chemical) 501) 20 parts by weight, calcium carbonate (Omiya M5) 10 parts by weight, pentarisrititol tetrakis (3- (3,5-di-thi-butyl-4-hydroxyphenyl propinate) (Ciba I # 1010) 0.4 A polypropylene compound composition for double-sided coating of a polypropylene double space comprising a weight part, 0.6 part by weight of hindered amine (Ciba D # 944), 1.0 part by weight of zinc stearate, and 8 parts by weight of a colorant was prepared.

Example 2 Preparation of Polypropylene Modified Compound Composition

50 parts by weight of polypropylene resin (Korean Emulsification 8088), 50 parts by weight of polypropylene-based modified elastomer (Mitui DF610), 10 parts by weight of calcium carbonate (Omiya M5), based on 100 parts by weight of olefin block copolymer (Dow I 9107), 0.4 parts by weight of pentarisrititol tetrakis (3- (3,5-di-thi-butyl-4-hydroxyphenyl propinate), 0.6 parts by weight of hinderedamine, 1.0 part by weight of zinc stearate and 8 parts by weight of colorant The polypropylene compound composition for polypropylene double space paper double-sided coating which consists of these was manufactured.

Example 3 Polypropylene Modified Compound Composition Preparation

50 parts by weight of polypropylene (Lotte Petrochemical, L670M), 50 parts by weight of polystyrene-based modified elastomer (Kuraray SEPS), 10 parts by weight of calcium carbonate (Omiya M5), based on 100 parts by weight of olefin block copolymer (Dow I 9807), 0.4 parts by weight of pentarisititol tetrakis (3- (3,5-di-thi-butyl-4-hydroxyphenyl propinate), 0.6 parts by weight of hinderedamine, 1.6 parts by weight of fatty acid amine, 0.2 parts by weight of fluororesin, and A polypropylene compound composition for polypropylene double space paper double-side coating comprising 10 parts by weight of a colorant was prepared.

Example 4 Polypropylene Modified Compound Composition Preparation

70 parts by weight of polypropylene (Lotte Petrochemical L670M), 30 parts by weight of polypropylene-based modified elastomer (Dow V4200), 10 parts by weight of calcium carbonate (Omiya M5), based on 100 parts by weight of olefin block copolymer (Dow I 9807), Pentaristhritol tetrakis (3- (3,5-di-thi-butyl-4-hydroxyphenyl propinate) 0.4 parts by weight, Hindamine 0.6 parts by weight, fatty acid amine 1.6 parts by weight and fluorine resin 0.2 parts by weight A polypropylene compound composition for double-sided coating of polypropylene double space paper formed was prepared.

Example 5 Polypropylene Modified Compound Composition Preparation

To 100 parts by weight of olefin block copolymer (Dow I 9807), 70 parts by weight of polypropylene ((Lotte Petrochemical, L127A), 30 parts by weight of polypropylene modified elastomer (Dow V4200), 10 parts by weight of calcium carbonate (Omiya M5) , Pentaristhritol tetrakis (3- (3,5-di-thi-butyl-4-hydroxyphenyl propinate) 0.4 parts by weight, hindered amine 0.6 parts by weight, fatty acid amine 1.6 parts by weight and fluororesin 0.2 parts by weight Polypropylene double wall textiles comprising a polypropylene compound composition for double-sided coating was prepared.

Experimental Example 1 Measurement of Physical Properties of Polypropylene Modified Compound Composition

The physical properties of the polypropylene modified compound composition prepared through Examples 1 to 5 were respectively measured as follows, and the results are shown in Table 1 below.

Table 1 Example 1 Example 2 Example 3 Example 4 Example 5 Melt Index (Melt Index, 230 ℃ / 2.16kg, ASTM D1238, g / min) 2.1 2.7 21.5 21.0 20.0 Hardness (ASTM D, Shore A) 85 80 83 80 83 importance 0.91 0.9 0.91 0.91 0.91 Melting Point (ASTM D2117, ℃) 118 110 127 122 128 Softening Point (ASTM D1525, ℃) 100 90 110 105 112 Tensile Strength (ASTM D638, kg / ㎠) 160 125 160 130 150 Elongation (ASTM D638,%) 1,100 1,200 1,350 1,400 1,400 Flexural modulus (ASTM D790, kg / ㎠) 1,700 1,800 2,100 3,200 3,600 Light resistance (UV) Grade 4 Grade 4 Grade 4 Grade 4 Grade 4 Wear resistance (Taber 1.5kg, g / 500 cycles) 10 9 10 9 9

<Example 6-10> Preparation of polypropylene double space paper and analysis of physical properties

Next, using a polypropylene double space as shown in Table 2, to prepare a polypropylene double space paper coated with a polypropylene modified compound composition of the polypropylene-based compound extrusion method of Examples 1 to 5, wherein the specific manufacturing conditions Same as 3. At this time, for comparison, a PVC coated product was also prepared.

TABLE 2 Inspection items unit Polypropylene fabric Polyester fabric Remarks Fabric width mm 1,320 1,320 - weight g / m ² 960 1,220 - Spacer Length mm 150 150 - Spacer Density All / 20cm 20 * 15 23 * 14 - density S / inch 14 * 26 13 * 29 Warp * weft Shrinkage % 3 * 1.5 6 * 5 (Bevel * Weft) 100 ℃ 15min

TABLE 3 Item unit Polypropylene PVC Fabric weight g / m ² 960 1,220 Primary coating weight g / m ² - 1,100 (Sol Adhesive Compound) Secondary coating weight g / m ² 660 480 (PVC Compound) Second Coating Thickness (Front * Back) mm 0.35 * 0.35 - Product total weight g / m ² 1,520 2,800

In addition, the physical properties of the polypropylene double space paper produced through Examples 6 to 10 were measured as follows, and the results are shown in Table 4 below.

Table 4 Properties Test method unit result Example 6 Example 7 Example 8 Example 9 Example 10 PVC Total weight - g / ㎡ 1,460 1,450 1,260 1,250 1,260 2,800 HF Adhesion KS K 0521 kgf / 5cm 20 20 20 23 23 20 Abrasion Resistance (Taber 1.5kg, 500 Times) Tabertest g 10 9 10 9 9 12 Flex cracking 15,000 cycle - Non Non Non Non Non Crack Air tight 1.5Kg / ㎠ - Non Non Non Non Non Non

※ Tensile strength and cutting strength are warp * weft.

Therefore, a polypropylene modified compound coated polypropylene double space using a double space fabric woven from the polypropylene multifilament yarn according to the present invention as a core has sufficient physical properties necessary for producing a double space paper having excellent physical properties compared to a PVC double space paper. This was implemented.

Having described the specific parts of the present invention in detail, it will be apparent to those skilled in the art that such specific descriptions are merely preferred embodiments, and thus the scope of the present invention is not limited thereto. will be. Thus, the substantial scope of the present invention will be defined by the appended claims and their equivalents.

Claims (11)

Coating a polypropylene modified compound composition on both sides of the polypropylene bimodal fabric, The polypropylene modified compound composition is based on 100 parts by weight of the olefin block copolymer, 50 to 100 parts by weight of polypropylene resin, 0.1 to 50 parts by weight of polypropylene modified elastomer, 0.1 to 50 parts by weight of polystyrene modified elastomer or polyolefin rubber Part, polypropylene double, characterized in that it comprises 0.1 to 20 parts by weight of inorganic filler, 0.1 to 1.0 parts by weight of antioxidant, 0.1 to 2.0 parts by weight of UV absorber, 0.1 to 3.0 parts by weight of processing agent, 1 to 15 parts by weight of colorant. Method of manufacturing space paper. The method according to claim 1, The polypropylene double space fabric is between 25mm and 25mm between double coats of tricot tissue woven with a weaving density of 10 to 30 and weft 10 to 30 per inch using a polypropylene multifilament yarn of 300 denier to 500 denier. Method for producing a polypropylene double space paper characterized in that it has a space yarn of 400mm. The method according to claim 2, The polypropylene double space fabric is a method of producing a polypropylene double space paper characterized in that the single yarn strength produced by the melt spinning method non-twisted using a polypropylene monofilament of 6.2 gf / d to 8.0 gf / d. The method according to claim 1, The olefin block copolymer is a propylene block copolymer, propylene block copolymer, butylene block copolymer, hexene block copolymer and octene block copolymer, a method for producing a polypropylene double space, characterized in that one selected from the group consisting of. The method according to claim 1, The polypropylene-based resin is a general homo polypropylene (General Homo PP), a high crystal polypropylene copolymer (HCCP Homo PP), a high crystal block polypropylene copolymer (HCCP Block Copolymer PP), random copolypropylene (Random Copolymer PP And butyl tertiary polypropylene terpolymer (tert-PP) is a method for producing a polypropylene double space paper characterized in that at least one selected from the group consisting of. The method according to claim 1, The polypropylene-based modified elastomer is polypropylene ethylene copolymerized plastomizer (m-PEPP), polypropylene octene copolymerized plastomizer (m-POPP), polypropylene hexene copolymerized plastomizer (m-PHPP) and polypropylene butene copolymer Method for producing a polypropylene double space paper characterized in that at least one selected from the group consisting of plastomers (m-PBPP).        The method according to claim 1, The polystyrene-based modified elastomer or polyolefin-based rubber is polystyrene butadiene copolymer (SBS), polystyrene isoprene copolymer (SIS), polystyrene ethylene butadiene block copolymer (SEBS), polystyrene ethylene propylene block copolymer (SEPS), hydrogenated polystyrene ethylene Butadiene elastomer (HSEBS), polyethylene propylene copolymer rubber (EPM), polyethylene propylene diene polymer rubber (EPDM), polyisoprene rubber, polybutyl rubber and poly isobutylene rubber, characterized in that at least one selected from the group consisting of Method for producing propylene double space paper.        The method according to claim 1, The inorganic filler is a method for producing a polypropylene double space paper, characterized in that one selected from the group consisting of calcium carbonate, talc, clay, magnesite, aluminum hydroxide, magnesium hydroxide. The method according to claim 1, The antioxidant is 1,1,1-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 1,3,5-trimethyl-2,4,6-tris (3,5 -Di-tert-butyl-4-hydroxybenzyl) benzene, tetrakis- [methylene-3- (3'5'-di-tert-butyl-4-hydroxyphenyl) propinate], bis [3 , 3'-bis- (4'-hydroxy-3'-tertiary-butylphenyl) butylic acid] glycol ester, 1,3,5-tris (3 ', 5'-di-tertiary-butyl- 4'hydroxybenzyl) -SEC-triazine-2,4,6-trione, 3,5-di-tertiary-butyl-4-hydroxyhydrocinnamate octadecyl, tris (2,4-di- Tertiary-butylphenyl) phosphate, cyclo neopentanetetrayl bis (2,4-di-tertiary-butylphenyl) phosphate and 1,2-bis (3,5-di-tertiary-butyl-4-hydroxy Hydrocinnamoyl) hydrazine is a method for producing a polypropylene double space paper, characterized in that at least one selected from the group consisting of.       The method according to claim 1,       The UV absorber is benzophenone series, phenyl silicate, bis (2,2,6,6-tetramethyl-4-piperidinyl) sebacate, 2- (3'-5'-di-tertiary-butyl-2 '-Hydroxyphenyl) -5-chlorobenzotriazole, 2- (3,5-di-tertiary-phenyl-2-hydroxyphenyl) benzotriazole, 2- (2'-hydroxy-5-methylphenyl ) Benzotriazole, 2- (3'-tertiary-butyl-2'-hydroxy-5'-methylphenyl) -5-chlorobenzotriazole, and a hindered amine ultraviolet stabilizer. Method for producing a polypropylene double space paper. The method according to claim 1, The processing lubricant is one or more selected from the group consisting of zinc stearate, oleamide, erucamide, stearamide, behenamide, fatty acid amine and fluororesin.

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