WO2023106501A1 - 생분해성 폴리올레핀 섬유 및 이의 제조방법 - Google Patents
생분해성 폴리올레핀 섬유 및 이의 제조방법 Download PDFInfo
- Publication number
- WO2023106501A1 WO2023106501A1 PCT/KR2021/019401 KR2021019401W WO2023106501A1 WO 2023106501 A1 WO2023106501 A1 WO 2023106501A1 KR 2021019401 W KR2021019401 W KR 2021019401W WO 2023106501 A1 WO2023106501 A1 WO 2023106501A1
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- WO
- WIPO (PCT)
- Prior art keywords
- biodegradable
- fiber
- polyolefin
- fibers
- polyolefin fibers
- Prior art date
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- 239000000835 fiber Substances 0.000 title claims abstract description 90
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title description 2
- 239000013533 biodegradable additive Substances 0.000 claims abstract description 27
- 230000001590 oxidative effect Effects 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims description 28
- 238000009987 spinning Methods 0.000 claims description 22
- 239000000155 melt Substances 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 230000005855 radiation Effects 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 238000000691 measurement method Methods 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical class [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 3
- 230000002285 radioactive effect Effects 0.000 claims description 3
- 238000006065 biodegradation reaction Methods 0.000 abstract description 18
- 238000002156 mixing Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 24
- 230000000052 comparative effect Effects 0.000 description 18
- -1 polybutylene succinate Polymers 0.000 description 14
- 239000004743 Polypropylene Substances 0.000 description 13
- 229920001155 polypropylene Polymers 0.000 description 13
- 239000004745 nonwoven fabric Substances 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 6
- 229920002994 synthetic fiber Polymers 0.000 description 5
- 239000012209 synthetic fiber Substances 0.000 description 5
- 229920002988 biodegradable polymer Polymers 0.000 description 4
- 239000004621 biodegradable polymer Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920002544 Olefin fiber Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004767 olefin fiber Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 150000003623 transition metal compounds Chemical class 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- BMTAFVWTTFSTOG-UHFFFAOYSA-N Butylate Chemical compound CCSC(=O)N(CC(C)C)CC(C)C BMTAFVWTTFSTOG-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 229920002589 poly(vinylethylene) polymer Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 239000004631 polybutylene succinate Substances 0.000 description 1
- 229920002961 polybutylene succinate Polymers 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004632 polycaprolactone Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 239000004628 starch-based polymer Substances 0.000 description 1
- 229920003179 starch-based polymer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
Definitions
- the present invention relates to biodegradable polyolefin fibers and a method for producing the same.
- Synthetic fibers widely used until now include polyester, polyolefin, and polyamide fibers. These fibers not only have high strength and high elasticity, but also have the advantage of being able to impart new properties to fibers through a change in cross-sectional shape during spinning because they can be produced by melt spinning, but synthetic fibers as described above are non-degradable and do not naturally decompose. Since it is a material, it cannot be landfilled and is often treated by incineration. However, when these synthetic fibers are incinerated, many harmful substances are released and harmful gases are generated, destroying the natural environment. In many countries, the use of these biodegradable polymers is legally mandated.
- biodegradable polymers such as starch-based polymers, cellulose acetate, polyhydroxy butylate, polylactide, polycaprolactone, and polybutylene succinate have been commercialized and sold.
- Sexual polyolefins have not yet secured physical properties capable of producing fibers, and are thus being manufactured only for injection-molded products.
- the problem to be solved by the present invention is to have biodegradable properties with raw materials (resin) and biodegradable additives when manufacturing olefin fibers, and improve initial biodegradation performance and physical properties of existing olefin fibers at the same time through specific spinning and stretching conditions when manufacturing fibers It is to provide a satisfactory biodegradable polyolefin fiber.
- the present invention provides a biodegradable polyolefin fiber comprising a core made of polyolefin and an oxide layer formed on the outside of the core.
- the fiber may include the polyolefin and the oxidative biodegradable additive in an amount of 95 to 99.5:0.5 to 5% by weight.
- the oxide layer may include an oxidative biodegradable additive.
- the oxidatively biodegradable additive may be at least one selected from the group consisting of iron, manganese, copper, cobalt, and cesium compounds.
- the fiber is drawn at a draw ratio of 1.5 or less, and the melt index may be 20 to 50.
- the fiber may have a tensile strength of 1.8 to 4.0 g/d and an elongation of 300 to 500%.
- the fiber may have a radioactive rating of S or A as measured by the following measurement method.
- Radiation Level Emissary that occurs for 1 hour per 16 positions of radiation
- the present invention comprises preparing a melt by melting polyolefin and an oxidatively biodegradable additive, spinning the melt at a temperature of 250 to 310 ° C. at a speed of about 900 to 1,500 m / min to produce a filament , Cooling the spun filaments and drawing the cooled filaments at a draw ratio of 1.5 or less, providing a method for producing biodegradable polyolefin fibers.
- An oxide layer is formed on the surface of the filament spun in the cooling step, the temperature of the cooling region is 14 to 18 ° C, and the cooling air velocity may be 1.0 to 3.0 m / sec.
- polyolefin fibers having biodegradable properties can be provided by preparing fibers by mixing raw materials and biodegradable additives under specific conditions.
- FIG. 1 shows a cross section of a biodegradable polyolefin fiber according to an embodiment of the present invention.
- Figure 2 shows a method for producing biodegradable polyolefin fibers according to another embodiment of the present invention.
- the present invention provides a biodegradable polyolefin fiber comprising a core made of polyolefin and an oxide layer formed on the outside of the core.
- FIG. 1 shows a cross section of a biodegradable polyolefin fiber according to an embodiment of the present invention.
- the present invention provides a biodegradable polyolefin fiber including a core and an oxide layer surrounding the outside of the core according to one embodiment.
- the core may include polyolefin as a main component and an oxidative biodegradable additive as a minor component.
- the core may have a circular shape, or may have a triangular or polygonal shape.
- the biodegradable polyolefin fibers may include polyolefin and oxidative biodegradable additives in an amount of 95 to 99.5:0.5 to 5% by weight, specifically, 98 to 99:1 to 2% by weight.
- the content of the oxidatively biodegradable additive is less than 0.5% by weight or greater than 5% by weight, the balance between the polyolefin and the oxidatively biodegradable additive is unbalanced, so that biodegradable properties cannot be exhibited. Specifically, if it is less than 0.5% by weight, biodegradable properties cannot be exhibited, and if it exceeds 5% by weight, there is a problem in that spinnability and tensile strength of fibers are lowered.
- the polyolefin used in the present invention includes high-density polyethylene, linear low-density polyethylene, low-density polyethylene, propylene (a homogeneous propylene), ethylene-propylene copolymer, ethylene-propylenebutene-1 copolymer, polybutene-1, polyhexene-1, It may be polyoctene-1, poly-4-methylpentene-1, polymethylpentene, 1,2-polybutadiene, 1,4-polybutadiene, or a mixed resin thereof, preferably polypropylene.
- the polypropylene may have a melt index (MI) of 10 to 30 at a temperature of 230 °C and a load of 2.16 kg.
- MI melt index
- the polypropylene may have a melting point of 130 to 170 ° C, and a specific gravity of 0.88 to 0.95 It may be, and if the polypropylene is out of the melt index, melting point and specific gravity as described above, spinnability may be reduced, and the above range is preferable.
- the fiber may have a core-shell shape.
- the oxidative biodegradable additive may be a transition metal compound, specifically, may be at least one selected from the group consisting of iron, manganese, copper, cobalt, and cesium compounds, More Specifically, it may be iron, and in the case of iron, it is non-toxic compared to copper and has a better decomposition rate than manganese.
- the decomposition rate can be adjusted according to exposure to heat and light.
- the fiber may be drawn at a draw ratio of 1.5 or less, specifically, may be drawn at a draw ratio of 1.3 or less.
- the oxidized layer formed on the fiber is non-uniform or partially destroyed, resulting in deterioration in biodegradation characteristics and a problem of thread breakage. That is, the fiber may exhibit biodegradable characteristics by forming an oxide layer on the outer surface of the fiber after spinning.
- the oxide layer can be kept uniform and can be prevented from being destroyed.
- the melt index (MI) of the biodegradable polyolefin fiber may be 20 to 50, specifically 35 to 45.
- melt index of the fiber exceeds 50, there is a problem in that the molecular weight is reduced and the strength is lowered after manufacturing the fiber or nonwoven fabric, and the above range is preferable.
- the tensile strength of the fiber according to the present invention may be 1.8 to 4.0 g / d, and the elongation may be 300 to 500%.
- the nonwoven fabric In the manufacturing process, there are problems in that the bonding force is weakened when thermally bonded with a calender after forming the web, and the nonwoven fabric becomes stiff and the strength of the nonwoven fabric decreases during bonding by raising the calender temperature, so the above range is preferable.
- the biodegradable polyolefin fiber according to the present invention may have a radioactive rating of S or A as measured by the following measurement method.
- Radiation rating Evaluates the number of troubles such as trimming and drop that occur during one hour per 16 positions of radiation by classifying them into S-D, where S is 0 times, A is 1 time, B is 2 times, and C is 3-4 times times, D is judged to be 5 times or more.
- the biodegradable polyolefin fiber according to the present invention may be composed of a core containing polyolefin and an oxidative biodegradable additive and an oxide layer formed by the oxidative biodegradable additive, and is stretched at a draw ratio of 1.5 or less to prevent non-uniformity or destruction of the oxide layer. By preventing it, it is possible to improve the biodegradation properties .
- biodegradable polyolefin fiber of the present invention may be a single fiber, and the length of the short fiber may be 1 to 100 mm, and may be used in various forms such as air through, thermal point bond, spunlace, needle punch, and airlaid nonwoven fabric. It can be made of fibers or non-woven fabrics with biodegradable properties.
- biodegradable polyolefin fiber of the present invention may be a long fiber, and may be used as a fabric to which biodegradability is imparted when the long fiber is manufactured.
- Figure 2 shows a method for producing biodegradable polyolefin fibers according to another embodiment of the present invention.
- the present invention provides a method for producing biodegradable polypropylene fibers according to another embodiment.
- preparing a melt by melting polyolefin and an oxidatively biodegradable additive S100
- preparing a filament by spinning the melt at a temperature of 250 to 310 ° C. at a speed of 500 to 1,500 m / min S200
- Cooling the spun filaments S300
- drawing the cooled filaments at a draw ratio of 1.0 to 1.5 (S400).
- a melt may be prepared by mixing and melting the polyolefin and the oxidative biodegradable additive in an amount of 98 to 99.5:0.5 to 2% by weight.
- the content of the oxidative biodegradable additive is less than 0.5% by weight or more than 5% by weight, the balance of the two components may be reduced due to cutting, and the formation of an oxidized layer may not occur, resulting in biodegradation. There is a problem.
- the melting temperature may be 250 to 310 °C, specifically 270 to 290 °C.
- the melting temperature is less than 250 ° C, the polyolefin is not completely melted and it is not easy to mix with the oxidative biodegradable additive.
- the time for preparing the melt is not limited as long as the polyolefin and the oxidatively biodegradable additive are sufficiently mixed.
- a step (S200) of producing a filament by spinning the melt is a step (S200) of producing a filament by spinning the melt.
- the spinning may be performed at a speed of 500 to 1,500 m/min at a temperature of 250 to 310 °C, and specifically at a speed of 1,100 to 1300 m/min at a temperature of 260 to 300 °C.
- the melt flowability of the polymer is lowered, thereby reducing the radiation, and there is a problem that the oxide surface layer is not formed, and if it exceeds 310 ° C, the polymer is decomposed and the oxide layer is non-uniform. There is a problem of being formed or not being formed, so the above range is preferable.
- the spinning speed is less than 500 m / min, there is a problem in that the cooling is delayed during fiber formation and the spinnability is lowered, and if it exceeds 1,500 m / min, the formation time of the oxide surface layer is insufficient, so that the oxide layer is not formed, and the spinnability There is a problem of this decrease, and the above range is preferable.
- the shape of the fiber may be determined according to the spinneret. That is, the shape of the fiber may be determined according to the shape of the spinning hole formed in the spinneret.
- the cooling step (S300) may be performed at a temperature of 14 to 18 °C and a cooling air speed of 1.0 to 3.0 m/sec.
- a cooling temperature and speed are out of the above range, there is a problem in that the radioactivity is poor and the formation of the oxide layer is non-uniform, and thus the biodegradation characteristics are deteriorated, and the above range is preferable.
- An oxide layer is formed on the surface of the fiber through the cooling step (S300).
- the stretching step (S400) may further include heating the filament on which the oxide layer is formed, and the heating temperature and method are not limited.
- stretching may be performed at a stretching ratio of 1.5 or less, and specifically, stretching may be performed at a stretching ratio of 1.3 or less.
- the present invention can provide a polyolefin fiber with improved initial biodegradation rate by forming an oxide layer on the outer surface of the fiber through an oxidative biodegradable additive and specific spinning conditions.
- a melt was prepared by melting 99% by weight of polypropylene having a melt index (MI) of 10 at a temperature of 230 °C and a load of 2.16kg and 1% by weight of an oxidative biodegradable additive (iron).
- MI melt index
- iron oxidative biodegradable additive
- the molten material was then spun at a temperature of 282 ° C. at a speed of 1,200 m / min to prepare a filament, and then cooled under specific conditions to form an oxide layer.
- the filament on which the oxide layer was formed was heated to a specific temperature and then drawn at a draw ratio of 1.3 to prepare a fiber having biodegradable properties.
- the temperature of the cooling area was 16 ° C and the cooling air velocity was 2 m / sec.
- fibers having biodegradable properties were prepared using 99.5 wt% of polypropylene resin and 0.5 wt% of oxidative biodegradation additive instead of 99 wt% of polypropylene resin and 1 wt% of oxidative biodegradation additive.
- Fibers having biodegradable properties were prepared in the same manner as in Example 1, except that 95% by weight of the polypropylene resin and 5% by weight of the oxidatively biodegradable additive were used instead of 99% by weight of the polypropylene resin and 1% by weight of the oxidatively biodegradable additive.
- Example 2 It was carried out in the same manner as in Example 1, but the cooling temperature was set at a temperature of 18 ° C. to prepare a fiber having biodegradable properties.
- Example 2 It was carried out in the same manner as in Example 1, but the cooling temperature was set at a temperature of 14 ° C. to prepare a fiber having biodegradable properties.
- Fibers were prepared in the same manner as in Example 1, but with the draw ratio set to 1.5.
- Fibers were prepared in the same manner as in Example 1, but using 100% by weight of polypropylene.
- Fibers were prepared in the same manner as in Example 1, but using 99.9% by weight of polypropylene and 0.1% by weight of an oxidative biodegradable agent.
- Fibers were prepared in the same manner as in Example 1, but using 90% by weight of polypropylene and 10% by weight of an oxidative biodegradable agent.
- Oxidative biodegradation analysis was performed as follows, and the results are shown in Table 1.
- Step 1 UV treatment (ASTM5208 standard: 340 nm, 076 W/m 2 nm), elongation retention rate (less than 5%), molecular weight evaluation (less than 5,000)
- Radiation rating Evaluate the number of troubles such as trimming and drop that occur per hour per 16 positions of radiation by classifying them into S-D (S: 0 times, A: 1 time, B: 2 times, C: 3-4 times, D : 5 times or more)
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- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
Abstract
Description
Claims (9)
- 폴리올레핀으로 구성된 코어 및상기 코어의 외부에 형성된 산화층을 포함하는,생분해성 폴리올레핀 섬유.
- 제1항에 있어서,상기 섬유는,상기 폴리올레핀 및 산화 생분해성 첨가제를95~99.5:0.5~5 중량%로 포함하는 것인,생분해성 폴리올레핀 섬유.
- 제1항에 있어서,상기 산화층은,산화 생분해성 첨가제를 포함하는,생분해성 폴리올레핀 섬유.
- 제3항에 있어서,상기 산화 생분해성 첨가제는 철, 망간, 구리, 코발트 및 세슘 화합물로 이루어진 군 중 선택된 1 종 이상인,생분해성 폴리올레핀 섬유.
- 제1항에 있어서,상기 섬유는,1.5 이하의 연신비로 연신된 것이고,용융지수는 20~50인,생분해성 폴리올레핀 섬유.
- 제1항에 있어서,상기 섬유는,인장강도가 1.8~4.0 g/d이고,신율이 300~500%인,생분해성 폴리올레핀 섬유.
- 제1항에 있어서,상기 섬유는 하기 측정방법으로 측정한 방사성의 등급이 S 또는 A인생분해성 폴리올레핀 섬유.<측정방법>방사성 등급: 방사 16position당 한 시간 동안 발생하는 사절,Drop 등 Trouble 횟수를 S~D로 구분하여 평가(S: 0회, A: 1회, B: 2회, C: 3~4회, D: 5회 이상)
- 폴리올레핀 및 산화 생분해성 첨가제를 용융시켜 용융물을 제조하는 단계,상기 용융물을 250~310℃의 온도에서 약 500~1,500 m/min의 속도로 방사하여 필라멘트를 제조하는 단계,상기 방사된 필라멘트를 냉각시키는 단계 및상기 냉각된 필라멘트를 1.5 이하의 연신비로 연신하는 단계를 포함하는,생분해성 폴리올레핀 섬유의 제조방법.
- 제8항에 있어서,상기 냉각시키는 단계에서 방사된 필라멘트 표면에 산화층이 형성되고,냉각영역의 온도는 14~18℃이고, 냉각 에어 풍속은 1.0~3.0 m/초인,생분해성 폴리올레핀 섬유의 제조방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21967374.6A EP4296408A1 (en) | 2021-12-10 | 2021-12-20 | Biodegradable polyolefin fiber and method for manufacturing same |
MX2023011565A MX2023011565A (es) | 2021-12-10 | 2021-12-20 | Fibra de poliolefina biodegradable y metodo para fabricar la misma. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020210177014A KR102458266B1 (ko) | 2021-12-10 | 2021-12-10 | 생분해성 폴리올레핀 섬유 및 이의 제조방법 |
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KR20080032604A (ko) * | 2006-10-10 | 2008-04-15 | (주)동국가연 | 의류용 폴리프로필렌 필라멘트의 제조방법 및 장치 |
KR20100097486A (ko) * | 2009-02-26 | 2010-09-03 | 코오롱글로텍주식회사 | 생분해성 섬유 및 이의 제조방법, 이로부터 제조된 부직포 |
KR20150134470A (ko) * | 2014-05-21 | 2015-12-02 | 주식회사 휴비스 | 산화생분해성을 갖는 열접착형 복합섬유 및 그 제조방법 |
KR102007974B1 (ko) * | 2018-08-24 | 2019-08-06 | 전인성 | 산화생분해 재활용성 방수 코팅 종이 |
KR20200068527A (ko) * | 2018-01-29 | 2020-06-15 | 유에이치티 유니테크 컴퍼니 리미티드 | 산화 섬유 제조 방법 |
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KR101780482B1 (ko) | 2015-11-06 | 2017-09-25 | 주식회사 휴비스 | 소취 생분해성 섬유 |
EP3737782A1 (en) * | 2018-01-02 | 2020-11-18 | PrimaLoft, Inc. | Biodegradation-enhanced synthetic fiber and methods of making the same |
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KR20080032604A (ko) * | 2006-10-10 | 2008-04-15 | (주)동국가연 | 의류용 폴리프로필렌 필라멘트의 제조방법 및 장치 |
KR20100097486A (ko) * | 2009-02-26 | 2010-09-03 | 코오롱글로텍주식회사 | 생분해성 섬유 및 이의 제조방법, 이로부터 제조된 부직포 |
KR20150134470A (ko) * | 2014-05-21 | 2015-12-02 | 주식회사 휴비스 | 산화생분해성을 갖는 열접착형 복합섬유 및 그 제조방법 |
KR20200068527A (ko) * | 2018-01-29 | 2020-06-15 | 유에이치티 유니테크 컴퍼니 리미티드 | 산화 섬유 제조 방법 |
KR102007974B1 (ko) * | 2018-08-24 | 2019-08-06 | 전인성 | 산화생분해 재활용성 방수 코팅 종이 |
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KR102458266B1 (ko) | 2022-10-24 |
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