WO2019156447A1 - 유연성, 접착력 및 표면 강도가 향상된 타포린 및 그 제조 방법 - Google Patents
유연성, 접착력 및 표면 강도가 향상된 타포린 및 그 제조 방법 Download PDFInfo
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- WO2019156447A1 WO2019156447A1 PCT/KR2019/001431 KR2019001431W WO2019156447A1 WO 2019156447 A1 WO2019156447 A1 WO 2019156447A1 KR 2019001431 W KR2019001431 W KR 2019001431W WO 2019156447 A1 WO2019156447 A1 WO 2019156447A1
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- tarpaulin
- ldpe
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- hdpe
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
Definitions
- the present invention relates to tarpaulins and methods for their preparation, and more particularly, to tarpaulins and improved methods for improved flexibility, adhesion and surface strength even at low processing temperatures.
- Tarpaulin is a waterproof fabric that can be used as a waterproof tent, agricultural facility tent, temporary tent, etc., and is widely used because it is light, flexible, and durable.
- Such tarpaulins may be classified into PE (polyethylene) -based tarpaulins, PP (polypropylene) -based tarpaulins, PVC (polyvinyl chloride) -based tarpaulins, and the like, depending on the raw materials used.
- PE tarpaulin is a product formed by laminating one or both sides of an LDPE (low density polyethylene) film on a slit fabric or knitted fabric obtained by slit / stretching an HDPE (high density polyethylene) film.
- LDPE low density polyethylene
- HDPE high density polyethylene
- PP-based tarpaulin is a product formed by laminating a homo PP film on one side or both sides on a slit fabric or knitted fabric obtained by slit / stretching a homo PP film.
- PP tarpaulin has the advantage of high tensile strength, but low flexibility.
- PVC tarpaulin is a product formed by laminating a PVC film or impregnating a liquid PVC sol on a fabric or knitted fabric made of polyester multifilament yarn.
- PVC-based tarpaulin has long-term use due to its excellent durability, and has the advantage of being more flexible than PE-based tarpaulin, but it is impossible to recycle and incineration is impossible due to the toxicity of the film layer.
- the material of the waterproof membrane (elastomer and synthetic rubber) has a low hardness, the surface hardness can be significantly lower than that of PCV-based tarpaulin.
- the processing temperature for forming the waterproof film in order to maintain the adhesion of the PP multifilament yarn fabric and the waterproof film is 300 °C to 330 °C, this high temperature processing can reduce the tensile strength of the PP multifilament yarn. .
- the price of the waterproof membrane material is higher than other main materials of tarpaulin (LDPE, homo PP, PVC resin paste) is low price competitiveness.
- the present invention is to solve these problems, to provide a tarpaulin with improved flexibility, adhesion and surface hardness.
- Another object of the present invention is to provide a method for producing the tarpaulin.
- Tarpaulin for achieving the above object includes a fabric layer and a resin layer bonded to at least one surface of the fabric layer.
- the fabric layer may include a high density polyethylene (HDPE) multifilament yarn, a polypropylene (PP) multifilament yarn arranged to intersect the HDPE multifilament yarn, and a polyethylene terephthalate that binds the HDPE multifilament yarn and the PP multifilament yarn ( PET) ground yarns.
- the resin layer contains PP and low density polyethylene (LDPE).
- the thickness of the HDPE multifilament yarn is 200 denier to 3,000 denier
- the thickness of the PP multifilament yarn is 200 denier to 3,000 denier
- the thickness of the PET ground yarn is 30 denier to 150 denier.
- the resin layer comprises 30% to 70% by weight LDPE and 70% to 30% by weight PP.
- the resin layer comprises 30% to 50% by weight of LDPE, 30% to 50% by weight PP and 10% to 20% by weight of the olefin copolymer.
- the olefin copolymer is a copolymer of a monomer mixture comprising 15% to 20% by weight of ethylene monomer and 80% to 85% by weight of propylene monomer.
- the melt index of the LDPE is 5g / 10min to 20g / 10min
- the melt index of the PP is 15g / 10min to 35g / 10min
- the melt index of the olefin copolymer is 7g / 10min to 12g / 10min.
- a cylinder including a screw kneading and melting a resin raw material mixture including PP and LDPE
- the molten resin raw material mixture in a constant amount T- Providing a die, passing the molten resin raw material mixture through the T-die to form a resin film, and bonding the fabric layer and the resin film.
- the fabric layer may include a high density polyethylene (HDPE) multifilament yarn, a polypropylene (PP) multifilament yarn arranged to intersect the HDPE multifilament yarn, and a polyethylene terephthalate that binds the HDPE multifilament yarn and the PP multifilament yarn ( PET) ground yarns.
- the step of kneading the resin raw material mixture, providing the molten resin raw material mixture to the T-die, and forming the resin film are performed at 260 ° C. or less.
- LDPE and PP are used as the main materials of the resin layer, while reducing the manufacturing cost, and improving the flexibility, surface strength and crack resistance of the tarpaulin compared to the conventional polyolefin tarpaulin. can do.
- the resin used in the present invention Since the material can be bonded to the fabric layer at a lower temperature (temperature difference of 45 DEG C or more) than the conventional resin material, it is noted that due to the melting of the PP multifilament yarn of the fabric layer at high temperature processing, the tensile strength and tear strength of the final product are lowered. It can prevent.
- FIG. 1 is a cross-sectional view showing tarpaulin according to an embodiment of the present invention.
- FIGS. 2 and 3 are perspective views showing an enlarged distal layer of tarpaulin according to an embodiment of the present invention.
- FIG. 4 is a cross-sectional view showing a method for preparing tarpaulin and an apparatus used therein according to an embodiment of the present invention.
- FIG. 5 is a diagram illustrating a temperature gradient of a T-die in the method of preparing tarpaulin according to an embodiment of the present invention.
- first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
- first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
- FIG. 1 is a cross-sectional view showing tarpaulin according to an embodiment of the present invention.
- Tarpaulin according to an embodiment of the present invention includes a fabric layer 10 and a resin layer 20.
- the fabric layer 10 may be a woven or knitted fabric.
- the resin layer 20 may be bonded to both surfaces or one surface of the fabric layer 10.
- the fabric layer 10 may include polyethylene (PE) multifilament yarn, polypropylene (PP) multifilament yarn, and polyethylene terephthalate (PET) ground yarn.
- PE polyethylene
- PP polypropylene
- PET polyethylene terephthalate
- the PE mulberry filament yarn is preferably a high density polyethylene (HDPE) multifilament sign.
- the HDPE multifilament yarn and the PP multifilament yarn may be warp and weft or weft and warp, respectively.
- the PET ground yarn may serve as an anchor for binding the warp yarn and the weft yarn.
- high density polyethylene (HDPE) and low density polyethylene (LDPE) is in accordance with conventional known standards.
- the thickness of the HDPE multifilament yarn may be 200 denier to 3,000 denier
- the thickness of the PP multifilament yarn may be 200 denier to 3,000 denier
- the thickness of the PET ground yarn may be 30 denier to 150 denier.
- the thickness of the HDPE multifilament yarn is less than 200 denier, in the process of forming the resin layer 20 on the fabric layer 10 may be melted and adhered to the resin layer 20 In this case, the strength of the fabric layer 10 may be significantly reduced.
- the thickness of the HDPE multifilament yarn is more than 3,000 denier, it is difficult to produce the fabric layer 10, the thickness of the fabric layer 10 is excessively increased, the lamination of the resin layer 20 is difficult.
- the thickness of the PP multifilament yarn is less than 200 denier, in the process of forming the resin layer 20 on the fabric layer 10 may be melted and adhered to the resin layer 20 In this case, the strength of the fabric layer 10 may be significantly reduced.
- the thickness of the PP multifilament yarn exceeds 3,000 denier, it is difficult to weave the fabric layer 10, the thickness of the fabric layer 10 is excessively increased, the lamination of the resin layer 20 is difficult.
- the PET ground yarn can significantly reduce the cut during the production of the fabric layer 10 compared to the conventional PP ground yarn to improve the production efficiency.
- the PP ground yarn is melted in the process of forming the resin layer 20 is low melting point, it can not bind firmly to the warp and weft, the strength (tearing strength) of the fabric can be reduced.
- the cutting phenomenon may be significantly increased during the production of the fabric layer 10.
- the thickness of the PET ground yarn is more than 150 denier, after the lamination of the resin layer 20, the ground yarn protrudes through the resin layer 20 may significantly reduce the waterproof effect.
- the resin layer 20 may include LDPE and PP.
- the resin layer 20 may include 30 wt% to 70 wt% LDPE and 70 wt% to 30 wt% PP.
- the PP may comprise a homo PP or a random PP.
- the resin layer 20 may include LDPE, PP, and an olefin copolymer.
- the resin layer 20 may include 10 wt% to 70 wt% of LDPE, 10 wt% to 70 wt% of PP, and 10 wt% to 70 wt% of the olefin copolymer.
- the resin layer 20 may include 30 wt% to 50 wt% LDPE, 30 wt% to 50 wt% PP, and 10 wt% to 20 wt% olefin copolymer.
- the olefin copolymer may be a copolymer of a monomer mixture comprising 15% to 20% by weight of ethylene monomer and 80% to 85% by weight of propylene monomer.
- the melt index of the LDPE of the resin layer 20 is preferably 5g / 10min to 20g / 10min.
- the melt index of the LDPE is lower than 5g / 10min, melt kneading with other raw materials may be hindered, so that the resin film may be cracked or irregularly dropped from the T-die.
- the melt index of the LDPE exceeds 20g / 10min, the neck-in phenomenon in the T-die greatly increases.
- the melt index of the PP of the resin layer 20 is preferably 15g / 10min to 35g / 10min.
- melt index of the PP is lower than 15 g / 10 min, melt kneading with other raw materials may be hindered, so that the resin film may be cracked or irregularly fallen from the T-die.
- melt index of the PP exceeds 35g / 10min, the neck-in phenomenon in the T-die greatly increases. More preferably, the melt index of the PP may be 20g / 10min to 30g / 10min.
- the melt index of the resin mixture for forming the resin layer 20 may be 5g / 10min to 15g / 10min. If the melt index of the resin mixture is lower than 5g / 10min, the productivity of the extrusion coating is lowered, and excessive pressure is applied to the cylinder and the T-die, making the process difficult. In addition, a neck-in phenomenon may occur when the melt index of the resin mixture is greater than 15 g / 10 min.
- the melt index of the resin mixture may be 8g / 10min to 12g / 10min.
- the melt index of the olefin copolymer is 7 g / 10 min to 12 g / 10 min
- the melt index of the LDPE and PP mixture is preferably 6 g / 10 min to 15 g / 10 min.
- the resin mixture may further include an additive in addition to the raw material gate described.
- additives such as fillers, colorants, ultraviolet stabilizers, flame retardants, antistatic agents and the like may be added depending on the purpose and use of the product.
- FIGS. 2 and 3 are perspective views showing an enlarged distal layer of tarpaulin according to an embodiment of the present invention.
- the far end layer 10 may include a warp yarn 11, a weft yarn 12, and a ground yarn 13a.
- One of the warp 11 and the weft 12 is between the HDPE multifilament, the other may be a PP multifilament yarn.
- the ground yarn 13a may be a PET yarn.
- the weft yarn 12 is disposed above the warp yarn 11, and the ground yarn 13a is twisted along the warp yarn 11 across the intersection point of the warp yarn 11 and the weft yarn 12. It may have a Z array structure.
- the weft yarns 12 are disposed on the warp yarns 11, and the ground yarns 13b extend in the same direction as the warp yarns 11 and at the intersection of the warp yarns 11 and the weft yarns 12. It may have a twisted I array structure.
- the structure of the fabric layer disposed in Figures 2 and 3 is exemplary and the present invention is not limited thereto, and may have various structures known to be applicable to tarpaulin.
- FIG. 4 is a cross-sectional view showing a method for preparing tarpaulin and an apparatus used therein according to an embodiment of the present invention.
- the method of preparing tarpaulin according to an embodiment of the present invention includes a step of bonding the resin layer 20 to the fabric layer 10, and a resin coating apparatus may be used for this purpose.
- a resin layer raw material such as LDPE, PP, and an olefin copolymer is introduced through the hopper 700 of the resin coating apparatus.
- the resin layer raw material is supplied to the cylinder 600, and is melt mixed by heat applied to the cylinder 600 and rotational and linear movements of the screws inside the cylinder 600.
- the resin layer raw material may include LDPE and PP.
- the resin layer raw material may include 30 wt% to 70 wt% LDPE and 70 wt% to 30 wt% PP.
- the PP may comprise a homo PP or a random PP.
- the resin layer raw material may include LDPE, PP, and an olefin copolymer.
- the resin layer raw material may include 10 wt% to 70 wt% of LDPE, 10 wt% to 70 wt% of PP, and 10 wt% to 70 wt% of an olefin copolymer.
- the resin layer raw material may include 30 wt% to 50 wt% LDPE, 30 wt% to 50 wt% PP, and 10 wt% to 20 wt% olefin copolymer.
- the molten resin mixture is provided to an adapter 500, which provides the molten resin mixture to the T-die 100 in an amount.
- a screen 400 is disposed between the adapter 500 and the T-die 100, and foreign matters are removed in the course of passing the molten resin mixture through the screen 400.
- the T-die 100 forms a resin film 25 from the molten resin mixture.
- the transport roller 200 and the pressure roller 300 are disposed below the T-die 100.
- the transfer roller 200 transfers the distal layer 10, and the resin film 25 is bonded to one surface of the distal layer 10 by pressing the pressure roller 300.
- the transfer roller 200 may be a rubber roller, and the pressure roller 300 may be an emboss roller.
- a resin layer may be further formed on the other surface of the fabric layer.
- the cylinder 600, the adapter 500, the screen 400, and the T-die 100 may be heated to have an appropriate process temperature.
- the temperature of the cylinder 600 may be 90 ° C to 260 ° C
- the temperature of the adapter 500 may be 230 ° C to 260 ° C
- the temperature of the screen 400 is 225 ° C To 255 ° C.
- the temperature of the cylinder 600 may be 90 °C to 245 °C
- the temperature of the adapter 500 may be 230 °C to 245 °C
- the temperature of the screen 400 is 225 °C to 240 °C Can be.
- the temperature of the cylinder 600 may vary depending on the location.
- the temperature of the cylinder 600 may be relatively low in the region close to the hopper 700, and may gradually increase as the adapter 500 is closer to the adapter 500.
- FIG. 5 is a diagram illustrating a temperature gradient of a T-die in the method of preparing tarpaulin according to an embodiment of the present invention.
- the temperature of the T-die 100 may vary depending on the region.
- the temperature of the T-die 100 may vary in a direction perpendicular to the direction D1 of discharging the resin film 25.
- the film forming portion of the T-die 100 may be spaced apart from the central area C1 in a direction opposite to the first peripheral area P1 spaced apart from the central area C1 and the first peripheral area P1.
- the second peripheral region P2 spaced apart from each other, the first intermediate region M1 disposed between the central region C1 and the first peripheral region P1, and the central region C1 and the second peripheral region ( It may include a second intermediate region M2 disposed between P2).
- the central region C1, the first peripheral region P1, and the second peripheral region P2 may be heated to the same first temperature, and the first intermediate region M1 may be heated. And the second intermediate region M2 may be heated to a second temperature higher than the first temperature.
- the first temperature may be 220 ° C to 240 ° C
- the second temperature may be 230 ° C to 250 ° C.
- the smoothness of the resin layer may be improved through the temperature distribution of the T-die 100 as described above.
- LDPE and PP are used as the main materials of the resin layer, while reducing the manufacturing cost, and improving the flexibility, surface strength and crack resistance of the tarpaulin compared to the conventional polyolefin tarpaulin. can do.
- the resin used in the present invention Since the material can be bonded to the fabric layer at a lower temperature (temperature difference of 45 DEG C or more) than the conventional resin material, it is noted that due to the melting of the PP multifilament yarn of the fabric layer at high temperature processing, the tensile strength and tear strength of the final product are lowered. You can prevent it.
- Both sides are fabricated using HDPE multifilament yarns and PP multifilament yarns as warp and weft yarns, and PET yarns as ground yarns (thickness 0.48mm, XTE350, Polytech ID) using the resin coating apparatus of FIG.
- the resin layer (thickness 0.12mm) was formed in the.
- the resin raw material for forming the resin layer was mixed with 40% by weight of LDPE (LDPE963, Hanwha Chemical), 45% by weight of homo PP (4017M, Korea Emulsifier) and 15% by weight of olefin copolymer (CA207A, Lyondell Basell) And according to the temperature conditions of Table 1 and Table 2 below, it was heated / extruded / laminated.
- # 1 is an area close to the hopper
- # 6 is an area close to the adapter.
- # 1 and # 9 are outermost regions
- # 5 is a central region
- # 2, # 3, # 6 and # 7 are intermediate regions between the outermost region and the central region.
- the tarpaulin specimen of Example 1 as a comparative example, a number consisting of ethylene-propylene olefin copolymer (CA207A, Lyondell Basell) and styrene-ethylene-butadiene copolymer (CA10A, Lyondell Basell) on the PP multifilament yarn fabric layer
- the tear strength (ASTM D751-06: Trapezoid method), abrasion resistance (surface hardness, ASTM D3884: Taber method), and adhesive force (visual observation after separating the fibrous layer-resin layer) of the tarpaulin specimens forming the strata were evaluated. Shown in
- the tarpaulin prepared according to the present invention has superior tear strength, surface hardness, and adhesive strength as compared with the conventional olefin tarpaulin.
- the present invention can be used for waterproof tents, agricultural facility tents, temporary tents and the like.
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Abstract
Description
파트 | 온도(℃) |
실린더 #1 | 90~100 |
실린더 #2 | 110~130 |
실린더 #3 | 140~160 |
실린더 #4 | 170~200 |
실린더 #5 | 190~220 |
실린더 #6 | 200~240 |
어답터 | 240 |
스크린 | 235 |
파트 | 온도(℃) |
T-다이 #1 | 230 |
T-다이 #2 | 240 |
T-다이 #3 | 240 |
T-다이 #4 | 235 |
T-다이 #5 | 230 |
T-다이 #6 | 235 |
T-다이 #7 | 240 |
T-다이 #8 | 240 |
T-다이 #9 | 230 |
인열 강도(N) | 내마모성(cycle) | 접착력 | ||
실시예 1 | 경사 방향 | 301.5 | 180 | 높음 |
위사 방향 | 282.8 | |||
비교예 1 | 경사 방향 | 209.5 | 25 | 낮음 |
위사 방향 | 215.1 |
Claims (11)
- 고밀도 폴리에틸렌(HDPE) 멀티필라멘트 사, 상기 HDPE 멀티필라멘트 사와 교차하도록 배열된 폴리프로필렌(PP) 멀티필라멘트 사, 및 상기 HDPE 멀티필라멘트 사와 상기 PP 멀티필라멘트 사를 바인딩하는 폴리에틸렌테레프탈레이트(PET) 그라운드 사를 포함하는 원단층; 및상기 원단층의 적어도 일면에 결합된 수지층을 포함하고,상기 수지층은, PP 및 저밀도 폴리에틸렌(LDPE)을 포함하는 것을 특징으로 하는 타포린.
- 제1항에 있어서, 상기 HDPE 멀티필라멘트 사의 굵기는 200 데니어 내지 3,000 데니어이고, 상기 PP 멀티필라멘트 사의 굵기는 200 데니어 내지 3,000 데니어이고, 상기 PET 그라운드 사의 굵기는 30 데니어 내지 150 데니어인 것을 특징으로 하는 타포린.
- 제1항에 있어서, 상기 수지층은 LDPE 30 중량% 내지 70 중량% 및 PP 70 중량% 내지 30 중량%를 포함하는 것을 특징으로 하는 타포린.
- 제1항에 있어서, 상기 수지층은 LDPE 30 중량% 내지 50 중량%, PP 30 중량% 내지 50 중량% 및 올레핀계 공중합체 10 중량% 내지 20 중량%를 포함하는 것을 특징으로 하는 타포린.
- 제4항에 있어서, 상기 올레핀계 공중합체는, 에틸렌 모노머 15 중량% 내지 20 중량% 및 프로필렌 모노머 80 중량% 내지 85 중량%를 포함하는 모노머 혼합물의 공중합체인 것을 특징으로 하는 타포린.
- 제4항에 있어서, 상기 LDPE의 용융지수는 5g/10min 내지 20g/10min 이고, 상기 PP의 용융지수는 15g/10min 내지 35g/10min 이고, 상기 올레핀계 공중합체의 용융지수는 7g/10min 내지 12g/10min 인 것을 특징으로 하는 타포린.
- 스크류를 포함하는 실린더 내에서, PP 및 LDPE를 포함하는 수지 원료 혼합물을 혼련하여 용융하는 단계;상기 용융된 수지 원료 혼합물을 일정한 양으로 T-다이에 제공하는 단계;상기 용융된 수지 원료 혼합물을 상기 T-다이를 통과시켜 수지 필름을 형성하는 단계; 및고밀도 폴리에틸렌(HDPE) 멀티필라멘트 사, 상기 HDPE 멀티필라멘트 사와 교차하도록 배열된 폴리프로필렌(PP) 멀티필라멘트 사, 및 상기 HDPE 멀티필라멘트 사와 상기 PP 멀티필라멘트 사를 바인딩하는 폴리에틸렌테레프탈레이트(PET) 그라운드 사를 포함하는 원단층과 상기 수지 필름을 결합하는 단계를 포함하고,상기 수지 원료 혼합물을 혼련하는 단계, 상기 용융된 수지 원료 혼합물을 상기 T-다이에 제공하는 단계 및 상기 수지 필름을 형성하는 단계는 260℃ 이하에서 진행되는 것을 특징으로 하는 타포린의 제조 방법.
- 제7항에 있어서, 상기 수지층은 LDPE 30 중량% 내지 70 중량% 및 PP 70 중량% 내지 30 중량%를 포함하는 것을 특징으로 하는 타포린의 제조 방법.
- 제7항에 있어서, 상기 수지층은 LDPE 30 중량% 내지 50 중량%, PP 30 중량% 내지 50 중량% 및 올레핀계 공중합체 10 중량% 내지 20 중량%를 포함하는 것을 특징으로 하는 타포린의 제조 방법.
- 제9항에 있어서, 상기 올레핀계 공중합체는, 에틸렌 모노머 15 중량% 내지 20 중량% 및 프로필렌 모노머 80 중량% 내지 85 중량%를 포함하는 모노머 혼합물의 공중합체인 것을 특징으로 하는 타포린의 제조 방법.
- 제9항에 있어서, 상기 LDPE의 용융지수는 5g/10min 내지 20g/10min 이고, 상기 PP의 용융지수는 15g/10min 내지 35g/10min 이고, 상기 올레핀계 공중합체의 용융지수는 7g/10min 내지 12g/10min 이고, 상기 용융된 수지 원료 혼합물의 용융지수는 8g/10min 내지 12g/10min인 것을 특징으로 하는 타포린의 제조 방법.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19750987.0A EP3751047A4 (en) | 2018-02-07 | 2019-02-01 | TANKS WITH IMPROVED FLEXIBILITY, ADHESION AND SURFACE STRENGTH, AS WELL AS METHOD OF MANUFACTURING IT |
JP2020565248A JP7023546B2 (ja) | 2018-02-07 | 2019-02-01 | 柔軟性、接着力、及び表面強度が向上したターポリン及びその製造方法 |
CN201980011842.8A CN111684125B (zh) | 2018-02-07 | 2019-02-01 | 具有改善的柔性、粘附力和表面强度的篷布及其制造方法 |
AU2019217100A AU2019217100B2 (en) | 2018-02-07 | 2019-02-01 | Tarpaulin having improved flexibility, adhesion, and surface strength and manufacturing method therefor |
US16/968,147 US20210040681A1 (en) | 2018-02-07 | 2019-02-01 | Tarpaulin having improved flexibility, adhesion, and surface strength and manufacturing method therefor |
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KR10-2018-0015299 | 2018-02-07 | ||
KR20180015299 | 2018-02-07 | ||
KR1020190007622A KR102145027B1 (ko) | 2018-02-07 | 2019-01-21 | 유연성, 접착력 및 표면 강도가 향상된 타포린 및 그 제조 방법 |
KR10-2019-0007622 | 2019-01-21 |
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WO2019156447A1 true WO2019156447A1 (ko) | 2019-08-15 |
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KR100788821B1 (ko) * | 2006-07-27 | 2007-12-27 | 청도교하기공플라스틱유한공사 | 개선된 타포린 제조방법 |
KR100820597B1 (ko) * | 2006-07-25 | 2008-04-08 | 주식회사 원풍 | 내오염성 및 내후성을 향상시킨 합성고분자계 지붕시트 및그 제조방법 |
US20150183194A1 (en) * | 2013-12-30 | 2015-07-02 | Greif Flexibles Trading Holding Bv | Laminated fabric shipping sacks, methods of manufacturing, and related systems |
KR101797525B1 (ko) * | 2017-05-24 | 2017-11-15 | 정일환 | 저융점사로 엣지를 형성한 루핑시트용 원단 |
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KR200352720Y1 (ko) * | 2004-01-30 | 2004-06-09 | 류창환 | 능직을 이용한 유연성 타포린 |
KR100820597B1 (ko) * | 2006-07-25 | 2008-04-08 | 주식회사 원풍 | 내오염성 및 내후성을 향상시킨 합성고분자계 지붕시트 및그 제조방법 |
KR100788821B1 (ko) * | 2006-07-27 | 2007-12-27 | 청도교하기공플라스틱유한공사 | 개선된 타포린 제조방법 |
US20150183194A1 (en) * | 2013-12-30 | 2015-07-02 | Greif Flexibles Trading Holding Bv | Laminated fabric shipping sacks, methods of manufacturing, and related systems |
KR101797525B1 (ko) * | 2017-05-24 | 2017-11-15 | 정일환 | 저융점사로 엣지를 형성한 루핑시트용 원단 |
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