EP4087962A1 - Biologisch abbaubare polymerfaser aus nachwachsenden rohstoffen - Google Patents
Biologisch abbaubare polymerfaser aus nachwachsenden rohstoffenInfo
- Publication number
- EP4087962A1 EP4087962A1 EP21700368.0A EP21700368A EP4087962A1 EP 4087962 A1 EP4087962 A1 EP 4087962A1 EP 21700368 A EP21700368 A EP 21700368A EP 4087962 A1 EP4087962 A1 EP 4087962A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- biopolymer
- mol
- polymer fiber
- daltons
- range
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 73
- 239000002994 raw material Substances 0.000 title abstract description 11
- 229920002988 biodegradable polymer Polymers 0.000 title abstract description 4
- 239000004621 biodegradable polymer Substances 0.000 title abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 229920001222 biopolymer Polymers 0.000 claims description 89
- -1 polybutylene succinate Polymers 0.000 claims description 48
- 229920005594 polymer fiber Polymers 0.000 claims description 40
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical group CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 27
- 229920000642 polymer Polymers 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 19
- 230000009477 glass transition Effects 0.000 claims description 18
- 238000002844 melting Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 17
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 17
- 229920001169 thermoplastic Polymers 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 14
- 238000009987 spinning Methods 0.000 claims description 14
- 229920003232 aliphatic polyester Polymers 0.000 claims description 13
- 235000014655 lactic acid Nutrition 0.000 claims description 13
- 239000004626 polylactic acid Substances 0.000 claims description 12
- 229920001577 copolymer Polymers 0.000 claims description 11
- 239000004310 lactic acid Substances 0.000 claims description 11
- 229920002961 polybutylene succinate Polymers 0.000 claims description 11
- 239000004631 polybutylene succinate Substances 0.000 claims description 10
- 239000004753 textile Substances 0.000 claims description 10
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 8
- 239000000155 melt Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 6
- 125000001931 aliphatic group Chemical group 0.000 claims description 6
- 238000010998 test method Methods 0.000 claims description 6
- 229920000218 poly(hydroxyvalerate) Polymers 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000002657 fibrous material Substances 0.000 claims description 4
- 229920002347 Polypropylene succinate Polymers 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229920009537 polybutylene succinate adipate Polymers 0.000 claims description 3
- 239000004630 polybutylene succinate adipate Substances 0.000 claims description 3
- 229920001610 polycaprolactone Polymers 0.000 claims description 3
- 239000004632 polycaprolactone Substances 0.000 claims description 3
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 claims description 3
- SJZRECIVHVDYJC-UHFFFAOYSA-N 4-hydroxybutyric acid Chemical group OCCCC(O)=O SJZRECIVHVDYJC-UHFFFAOYSA-N 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000007900 aqueous suspension Substances 0.000 claims 1
- 229920001748 polybutylene Polymers 0.000 claims 1
- 230000000704 physical effect Effects 0.000 abstract description 3
- 238000002425 crystallisation Methods 0.000 description 13
- 230000008025 crystallization Effects 0.000 description 13
- 239000000463 material Substances 0.000 description 10
- 230000004927 fusion Effects 0.000 description 9
- 238000002788 crimping Methods 0.000 description 8
- 238000000113 differential scanning calorimetry Methods 0.000 description 8
- 238000005227 gel permeation chromatography Methods 0.000 description 8
- 229960000448 lactic acid Drugs 0.000 description 8
- 239000004416 thermosoftening plastic Substances 0.000 description 8
- 239000004793 Polystyrene Substances 0.000 description 7
- 239000000654 additive Substances 0.000 description 7
- 239000011162 core material Substances 0.000 description 7
- 229920002223 polystyrene Polymers 0.000 description 7
- 238000007655 standard test method Methods 0.000 description 7
- 239000003963 antioxidant agent Substances 0.000 description 6
- 235000006708 antioxidants Nutrition 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- JVTAAEKCZFNVCJ-REOHCLBHSA-N L-lactic acid Chemical class C[C@H](O)C(O)=O JVTAAEKCZFNVCJ-REOHCLBHSA-N 0.000 description 5
- 230000003078 antioxidant effect Effects 0.000 description 5
- 239000002667 nucleating agent Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 229920001059 synthetic polymer Polymers 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 238000004448 titration Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 229920000331 Polyhydroxybutyrate Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 238000006065 biodegradation reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000002074 melt spinning Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 238000010525 oxidative degradation reaction Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 239000005014 poly(hydroxyalkanoate) Substances 0.000 description 2
- 239000005015 poly(hydroxybutyrate) Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000903 polyhydroxyalkanoate Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical class N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229920000954 Polyglycolide Polymers 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000035 biogenic effect Effects 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000007707 calorimetry Methods 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 229920006240 drawn fiber Polymers 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000011846 petroleum-based material Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000118 poly(D-lactic acid) Polymers 0.000 description 1
- 229920001432 poly(L-lactide) Polymers 0.000 description 1
- 229920006209 poly(L-lactide-co-D,L-lactide) Polymers 0.000 description 1
- 229920000117 poly(dioxanone) Polymers 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 239000004633 polyglycolic acid Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- 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
- D01D5/098—Melt spinning methods with simultaneous stretching
-
- 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
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
-
- 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
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
- D01F6/625—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters derived from hydroxy-carboxylic acids, e.g. lactones
-
- 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
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43825—Composite fibres
- D04H1/43828—Composite fibres sheath-core
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/12—Physical properties biodegradable
Definitions
- the invention relates to a biodegradable polymer fiber made from renewable raw materials with good physical properties, a process for its production, and its use.
- Polymer fibers i.e. fibers based on synthetic polymers
- the underlying synthetic polymer is processed using a melt spinning process.
- the thermoplastic, polymeric material is melted and fed into a spinning beam in the liquid state by means of an extruder.
- the molten material is fed from this spinning beam to so-called spinnerets.
- the spinneret usually has a spinneret plate provided with several bores, from which the individual capillaries (filaments) of the fiber are extruded.
- wet or solvent spinning processes are also used to produce staple fibers. Instead of the melt, a highly viscous solution of a synthetic polymer is extruded through nozzles with fine bores. Both processes are referred to by those skilled in the art as so-called multi-digit spinning processes.
- the polymer fibers produced in this way are used for textile and / or technical applications. It is advantageous here if the polymer fibers have good dispersibility in aqueous systems, e.g. in the production of wet-laid nonwovens. In addition, it is advantageous for textile applications if the polymer fibers have good mechanical strength, for example in order to function well in fiber post-processing, for example in drawing on conveyor belts. In addition, it is advantageous for textile applications if the polymer fibers, in particular in the form of nonwovens, have a low thermal shrinkage.
- the modification or finishing of polymer fibers for the respective end use or for the necessary intermediate treatment steps, e.g. drawing and / or crimping, is usually carried out by applying suitable aviages or sizes, which are applied to the surface of the finished or to be treated polymer fiber.
- additives such as antistatic agents or colored pigments can be incorporated into the molten thermoplastic polymer or incorporated into the polymer fiber during the multi-digit spinning process.
- the dispersing behavior of a polymer fiber is influenced, among other things, by the nature of the synthetic polymer.
- the dispersibility in aqueous systems is therefore influenced and adjusted by the aviages or sizes applied to the surface.
- the task of providing a polymer fiber made from renewable raw materials which on the one hand should have good physical properties, so that good fiber post-processing, for example in the stretching on conveyor belts, is possible and the polymer fibers also have a low thermal shrinkage and, on the other hand, biologically are degradable.
- the polymer fiber made from renewable raw materials has good dispersibility, in particular long-term dispersibility, which is still available even after prolonged storage.
- the aforementioned object is achieved by the bi-component polymer fiber according to the invention, the fiber comprising a component A (core) and a component B (shell), the melting point of the thermoplastic polymer in component A is at least 5 ° C higher than that Melting point of the thermoplastic polymer in component B and the fiber material forming component A has a biopolymer A and the fiber material forming component B has a biopolymer B.
- the bi-component polymer fiber according to the invention is usually deposited as a tow and then stretched and post-treated on a conveyor belt using a special process.
- the tow can also be further processed directly and the filing of the tow in so-called cans can be completely or partially dispensed with.
- the combination of certain biopolymers, ie of component A (core) and a component B (shell) in connection with the special stretching leads to the bi-component polymer fibers according to the invention, which also have a low thermal shrinkage.
- the polymers used according to the invention are thermoplastic polycondensates based on so-called biopolymers.
- thermoplastic polymer denotes a plastic which can be (thermoplastically) deformed in a certain temperature range, preferably in the range from 25 ° C. to 350 ° C. This process is reversible, i.e. it can be repeated as often as required by cooling and reheating until it reaches the molten state, as long as the so-called thermal decomposition of the material does not set in due to overheating. This is where thermoplastic polymers differ from thermosets and elastomers.
- thermoplastic polycondensates based on so-called biopolymers
- synthetic biopolymers in particular melt-spinnable synthetic biopolymers, are particularly preferred.
- synthetic biopolymer denotes a material that consists of biogenic raw materials (renewable raw materials). This is used to distinguish it from conventional, petroleum-based materials or plastics, such as B. polyethylene (PE), polypropylene (PP) and polyvinyl chloride (PVC).
- PE polyethylene
- PP polypropylene
- PVC polyvinyl chloride
- the bi-component fibers according to the invention are made from biodegradable synthetic biopolymers, the term biodegradable for example according to ASTM D5338-15 (Standard Test Method for Determining Aerobic Biodegradation of Plastic Materials Under Controlled Composting Conditions, Incorporating Thermophilic Temperatures, ASTM International, West Conshohocken, PA, 2015, www.astm.org).
- the synthetic biopolymer A forming component A is an aliphatic polyester, in particular a biopolymer comprising repeat units Lactic acid, hydroxybutyric acid and / or glycolic acid, preferably lactic acid and / or glycolic acid, in particular lactic acid.
- Polylactic acids are particularly preferred.
- Aliphatic polyesters are understood to be polyesters which typically have at least about 50 mol%, in some embodiments preferably at least about 60 mol% and in particularly preferred embodiments at least about 70 mol% aliphatic monomers.
- Polylactic acid is understood here to mean polymers that are built up from lactic acid units. Such polylactic acids are usually produced by condensation of lactic acids, but are also obtained in the ring-opening polymerization of lactides under suitable conditions.
- Polylactic acids particularly suitable according to the invention include poly (glycolide-co-L-lactide), poly (L-lactide), poly (L-lactide-co-s-caprolactone), poly (L-lactide-co-glycolide), poly (L -lactide -co-D, L-lactide), poly (D, L-lactide-co-glycolide) and poly (dioxanone).
- Such polymers are, for example, by the company Boehringer Ingelheim Pharma KG (Germany) under the trade name Resomer ® GL 903, Resomer ® L 206 S, Resomer ® L 207 S, Resomer ® L 209 S, Resomer ® L 210, Resomer ® L 210 S , Resomer ® LC 703 S, Resomer ® LG 824 S, Resomer ® LG 855 S, Resomer ® LG 857 S, Resomer ® LR 704 S, Resomer ® LR 706 S, Resomer ® LR 708, Resomer ® LR 927 S, Resomer ® RG 509 S and Resomer ® X 206 S are commercially available.
- Polylactic acids which are particularly advantageous for the purposes of the present invention are in particular poly-D-, poly-L- or poly-D, L-lactic acids.
- polylactic acid generally refers to homopolymers of lactic acid such as e.g. y (L-lactic acid), poly (D-lactic acid), poly (DL-lactic acid), mixtures thereof and copolymers containing lactic acid as the predominant component and a small proportion, preferably less than 10 mol%, of a copolymerizable comonomer .
- biopolymer A is copolymers or terpolymers based on polylactic acid, polyglycolic acid, polyalkylene carbonates (such as polyethylene carbonate), polyhydroxyalkanoates (PHA), polyhydroxybutyrates (PHB), polyhydroxyvalerates (PHV) and polyhydroxybutyrate-hydroxyvalerate copolymers (PHBV).
- the biopolymer A is exclusively a thermoplastic polycondensate based on lactic acids.
- the polylactic acids used according to the invention have a number average molecular weight (Mn), preferably determined by
- the numerical average is preferably a maximum of 1,000,000 g / mol, expediently a maximum of 500,000 g / mol, advantageously a maximum of 100,000 g / mol, in particular a maximum of 50,000 g / mol.
- a number average molecular weight in the range from at least 10,000 g / mol to 500,000 g / mol has proven particularly useful in the context of the present invention.
- the weight average molecular weight (Mw) of preferred lactic acid polymers is preferably in the range from 750 g / mol to 5,000,000 g / mol, preferably in the range from 5,000 g / mol to 1,000,000 g / mol, particularly preferably in the range from 10,000 g / mol to 500,000 g / mol, in particular in the range from 30,000 g / mol to 500,000 g / mol, and the polydispersity of these polymers is conveniently in the range from 1.5 to 5.
- the inherent viscosity of particularly suitable lactic acid polymers is in the range of 0.5 dl / g to 8.0 dl / g, preferably in the range from 0.8 dl / g to 7.0 dl / g, in particular in the range from 1.5 dl / g to 3.2 dl / g.
- biopolymers in particular thermoplastic synthetic biopolymers, with a glass transition temperature greater than 20 ° C., advantageously greater than 25 ° C., preferably greater than 30 ° C., particularly preferably greater than 35 ° C., in particular greater than 40 ° C., are extremely advantageous .
- the glass transition temperature of the polymer is in the range from 35.degree. C. to 55.degree. C., in particular in the range from 40.degree. C. to 50.degree.
- polymers are particularly suitable which have a melting temperature greater than 120 ° C., advantageously of at least 130 ° C., preferably greater than 150 ° C., and a maximum of 250 ° C., particularly preferably a maximum of 210 ° C., and particularly preferably in the range from 120 ° C. to 250 ° C., in particular in the range from 150 ° C. to 210 ° C.
- the glass transition temperature and the melting temperature of the polymer are preferably determined by means of differential scanning calorimetry (DSC for short). The following procedure has proven particularly useful in this context:
- the synthetic biopolymer B forming component B is preferably a biopolymer which has a melting point at least 5 ° C lower than the synthetic biopolymer A forming component A.
- the melting point of biopolymer A is preferably at least 10 ° C, preferably at least 20 ° C , particularly preferably at least 30 ° C, in particular at least 40 ° C, higher than the melting point of the synthetic biopolymer B.
- the biopolymer B is an aliphatic polyester, in particular an aliphatic polyester, which has repeat units which differ from the repeat units of the biopolymer A with regard to their chemical structure.
- Aliphatic polyesters are understood to be polyesters which typically have at least about 50 mol%, in some embodiments preferably at least about 60 mol% and in particularly preferred embodiments at least about 70 mol% aliphatic monomers.
- the biopolymer B usually has a number average molecular weight (Mn) of at least 10,000 Daltons, in particular of at least 12,000 Daltons, particularly preferably of at least 12500 Daltons and a maximum of up to 120,000 Daltons, in particular up to 100,000 Daltons, particularly preferably up to 80,000 Daltons
- Mn number average molecular weight
- the number average molecular weight (Mn) is usually determined by gel permeation chromatography against narrowly distributed polystyrene standards.
- the biopolymer B usually has a weight average molecular weight (Mw) of at least 50,000 Daltons and a maximum of up to 240,000 Daltons, in particular up to 190,000 Daltons, particularly preferably up to 100,000 Daltons.
- Mw weight average molecular weight
- Mn number average molecular weight
- the biopolymer B usually has a melt flow index of 5 to 200 grams per 10 minutes, in particular 15 to 160 grams per 10 minutes, particularly preferably 20 to 120 grams per 10 minutes, measured according to ASTM test method D1238-13 (ASTM D1238-13, Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer, ASTM International, West Conshohocken, PA, 2013, www.astm.org).
- Melt flow index is the weight (in grams) of a polymer that can be forced through an extrusion rheometer orifice (0.0825 inch diameter) when subjected to a force of 2160 grams in 10 minutes at 190 ° C.
- biopolymers B based on aliphatic polyesters with an apparent viscosity that is too high are generally difficult to process and - on the other hand - apparent viscosities that are too low generally lead to an extruded fiber that has no tensile strength and insufficient binding capacity ( Thermo-Bonding).
- biopolymers B are those which have a melting temperature of greater than 50 ° C., advantageously of at least 100 ° C., preferably greater than 120 ° C., and a maximum of 180 ° C., particularly preferably a maximum of 160 ° C., and particularly preferably in the range of 50 ° C. to 160.degree. C., in particular in the range from 120.degree. C. to 160.degree.
- the glass transition temperature of the biopolymer B is preferably at least 5 ° C., in particular at least 10 ° C., very particularly preferably at least 15 ° C., below the glass transition temperature of the biopolymer A.
- the glass transition temperature is determined by means of DSC.
- biopolymers B which can have a low melting point and a low glass transition temperature, are aliphatic polyesters with repeating units of at least 5 carbon atoms (e.g. polyhydroxyvalerate, polyhydroxybutyrate-hydroxyvalerate copolymer and polycaprolactone) and succinate-based aliphatic polymers (e.g. B. polybutylene succinate, polybutylene succinate adipate and polyethylene succinate).
- More specific examples can be polyethylene oxalate, polyethylene malonate, Polyethylene succinate, polypropylene oxalate, polypropylene malonate,
- polypropylene succinate polybutylene oxalate, polybutylene malonate, polybutylene succinate, and mixtures and copolymers of these compounds.
- Such aliphatic polyesters are known in principle (WO 2007/070064) and are typically synthesized by the condensation polymerization of a polyol and an aliphatic dicarboxylic acid or an anhydride thereof.
- polybutylene succinate and butylene succinate copolymers are particularly preferred.
- Biopolymers B which have a high degree of melting and crystallization enthalpy, are particularly suitable for thermal bonding.
- the biopolymers B are usually selected so that they have a degree of crystallinity or a latent heat of fusion (Delta Hf) of more than about 25 joules per gram (“J / g”), particularly preferably more than 35 J / g, in particular more than 50 J / g.
- the latent heat of fusion (AHf), the latent heat of crystallization (AHC) and the crystallization temperature are determined by means of differential scanning calorimetry ("DSC") according to ASTM D-3418 (ASTM D3418-15, Standard Test Method for Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by Differential Scanning Calorimetry, ASTM International, West Conshohocken, PA, 2015, www.astm.org).
- the special biopolymer B used in this embodiment of the present invention has a number average molecular weight (Mn) of at least 10,000 Daltons, in particular of at least 12,000 Daltons, particularly preferably of at least 12,500 Daltons and a maximum of up to 30,000 Daltons, in particular up to 28,000 Daltons, particularly preferably up to 25,000 Daltons.
- the number average molecular weight (Mn) is usually determined by gel permeation chromatography against narrowly distributed polystyrene standards.
- the special biopolymer B has a melting temperature greater than 50 ° C., advantageously of at least 100 ° C., preferably greater than 120 ° C., and at most 180.degree. C., particularly preferably a maximum of 160.degree. C., and particularly preferably in the range from 50.degree. C. to 160.degree. C., in particular in the range from 120.degree. C. to 160.degree.
- the glass transition temperature of the special biopolymer B is preferably at least 5 ° C., in particular at least 10 ° C., very particularly preferably at least 15 ° C., below the glass transition temperature of the biopolymer A.
- the glass transition temperature is determined by means of DSC.
- biopolymers B which can have a low melting point and a low glass transition temperature, are aliphatic polyesters with repeating units of at least 5 carbon atoms (e.g. polyhydroxyvalerate, polyhydroxybutyrate-hydroxyvalerate copolymer and polycaprolactone) and succinate-based aliphatic polymers (e.g. polybutylene succinate, polybutylene succinate adipate and polyethylene succinate).
- aliphatic polyesters with repeating units of at least 5 carbon atoms e.g. polyhydroxyvalerate, polyhydroxybutyrate-hydroxyvalerate copolymer and polycaprolactone
- succinate-based aliphatic polymers e.g. polybutylene succinate, polybutylene succinate adipate and polyethylene succinate.
- More specific examples can be polyethylene oxalate, polyethylene malonate, polyethylene succinate, polypropylene oxalate, polypropylene malonate,
- polypropylene succinate include polypropylene succinate, polybutylene oxalate, polybutylene malonate, polybutylene succinate, and mixtures and copolymers of these compounds.
- polybutylene succinate and butylene succinate copolymers are particularly preferred as special biopolymers B.
- Special biopolymers B which have a high degree of melting and crystallization enthalpy, are particularly suitable for thermal bonding.
- the biopolymers B are usually selected so that they have a degree of crystallinity or a latent heat of fusion (Delta Hf) of more than about 25 joules per gram (“J / g”), particularly preferably more than 35 J / g, in particular more than 50 J / g.
- the latent heat of fusion (AHf), the latent heat of crystallization (AHC) and the crystallization temperature are determined by means of differential scanning calorimetry ("DSC") according to ASTM D-3418 (ASTM D3418-15, Standard Test Method for Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by Differential Scanning Calorimetry, ASTM International, West Conshohocken, PA, 2015, www.astm.org).
- the special biopolymer B has a melt viscosity determined at a temperature of 190 ° C (Göttfert Rheo-Tester 1000) in the range of 250 to 400 Pa * s at 200s 1 (shear) and 125 to 190 Pa * s at 1200s -1 (shear ), preferably in the range from 260 to 380 Pa * s at 200s -1 (shear) and 130 to 180 Pa * s at 1200s- 1 (shear), in particular in the range from 275 to 375 Pa * s at 200s -1 (shear ) and 135 to 175 Pa * s at 1200s 1 (shear)
- the biopolymers A and B described above have customary additives, such as anti-oxidant, among others. It has been shown here that additives from the group of anti-oxidants are unavoidable for the production and finishing of the fibers, since the biopolymers A and B mentioned above are sensitive to oxidative degradation.
- additives are pigments, stabilizers, surfactants, waxes, flow promoters, solid solvents, plasticizers and other materials, e.g., nucleating agents, which are added to improve the processability of the thermoplastic composition.
- nucleating agents which are usually added, facilitate crystallization during quenching of the fiber, thereby facilitating its processing.
- One type of such nucleating agent is a multicarboxylic acid such as succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, and mixtures of such acids as described in U.S. Patent No. 6177193.
- the nucleating agents are typically present in the biopolymer in an amount less than about 0.5% by weight, in some embodiments less than about 0.25% by weight, and in some embodiments less than about 0.1% by weight B present.
- the bi-component fibers according to the invention consist of at least 90% by weight of the aforementioned aliphatic polyester biopolymers A and B and typically have less than about 10% by weight, preferably less than about 8% by weight, particularly preferably less than about 5 % By weight of additives in the biopolymer B forming the shell.
- biopolymers require an addition of anti-oxidant, in particular biopolymer B (shell), due to their sensitivity to oxidative degradation. Due to the selected combination of raw materials and post-processing, the amount of anti-oxidant can be significantly reduced, ie the anti-oxidant content in biopolymer B (shell) is between 0.025% and 0.2% by weight.
- the bi-component fibers according to the invention are combined to form tow and post-treated in a strip line using methods known in principle, in particular drawn and, if necessary, crimped or textured.
- the special biopolymers B described above, in particular, can be used by selecting special conveyor belt parameters for the stretching.
- the bi-component fiber according to the invention can be present as a finite fiber, e.g. as a so-called staple fiber, or as an infinite fiber (filament).
- the fiber is preferably in the form of staple fiber.
- the length of the aforementioned staple fibers is not subject to any fundamental restriction, but is generally 2 to 200 mm, preferably 3 to 120 mm, particularly preferably 4 to 60 mm.
- the single titer of the bi-component fiber according to the invention is between 0.5 and 30 dtex, preferably 0.7 to 13 dtex.
- the bi-component fiber according to the invention shows a low hot air thermal shrinkage in the range from 0% and 10%, preferably from> 0% to 8%, measured at 110 ° C. in each case.
- the polymer fiber according to the invention is basically produced by customary processes. First, the polymer is dried, if necessary, and fed to an extruder. Subsequently, the melted material is means conventional devices with appropriate nozzles spun. The exit speed at the nozzle exit surface is matched to the spinning speed so that a fiber with the desired titer is produced. Spinning speed is to be understood as the speed at which the solidified threads are drawn off.
- the fibers formed can have round, oval and other suitable cross-sections or also other shapes.
- the fiber filaments produced in this way are combined into yarns and these in turn into tow.
- the tows are first placed in cans for further processing.
- the tow that is temporarily stored in the cans is picked up and a large staple fiber tow is produced.
- Another object of the present invention is the aftertreatment of the staple fiber tows produced by known processes, these usually have 10-600 ktex, using a conventional strip line, by means of a special stretching process.
- the entry speed of the spun fiber tow into the drawing or drawing device is preferably 10 to 110 m / min (entry speed). In this case, preparations can also be applied which promote stretching but do not adversely affect the subsequent properties.
- the stretching can be carried out in one stage or, optionally, using a two-stage stretching process (see, for example, US Pat. No. 3,816,486). Before and during stretching, one or more finishes can be applied using conventional methods.
- the stretching according to the invention takes place with a stretching ratio, in particular when using the special biopolymer B, between 1.2 and 6.0, preferably between 2.0 and 4.0, the temperature during the stretching of the tow being between 30.degree. C. and 80.degree C is.
- the drawing thus takes place in the region of the glass transition temperature of the tow to be drawn.
- the drawing according to the invention takes place in the presence of steam, i.e. in the so-called steam box, so that the draw point of the fiber is set in the steam box.
- the steam box is usually operated at 3 bar pressure.
- the thermal shrinkage of the fiber can be reduced and targeted, can be adjusted in a controlled manner.
- the belt line settings are preferably the following:
- the drawing takes place in one stage between the drawing system S2 and the drawing system S1 and in the steam box, i.e. the drawing point of the fibers is in the steam box. All godets (usually 7 pieces) from S1 have a temperature of 30 - 80 ° C. The entire stretching takes place in the steam box.
- the steam box is preferably operated with 3 bar steam.
- All godets (usually 7 pieces) of the downstream drafting system S2 are cold, cold means room temperature (approx. 20 - 35 ° C).
- the cold S2 has the advantage that there is no risk of the individual fibers sticking to the hot godets of the S2.
- the fiber is still insensitive to high temperatures when it is fixed in the oven without tension and can withstand temperatures of up to 100 ° C without sticking.
- the “cold stretching” described above is particularly suitable for polybutylene succinates (FZ71) whose melt viscosity determined at a temperature of 190 ° C (Göttfert Rheo-Tester 1000) in the range of 250 to 325 Pa * s at 200s 1 (shear) and 125 to 150 Pa * s at 1200s -1 (shear), preferably in the range from 260 to 300 Pa * s at 200s -1 (shear) and 130 to 150 Pa * s at 1200s -1 (shear), in particular in the range from 270 to 290 Pa * s at 200s -1 (shear) and 135 to 145 Pa * s at 1200s -1 (shear).
- FZ71 polybutylene succinates
- the polybutylene succinate (FZ91) has a melt viscosity determined at a temperature of 190 ° C. (Göttfert Rheo-Tester 1000) in the range from 340 to 400 Pa * s at 200 s -1 (shear) and 150 to 190 Pa * s at 1200 s -1 (Shear), preferably in the range from 350 to 390 Pa * s at 200s -1 (shear) and 160 to 185 Pa * s at 1200s- 1 (shear), in particular in the range from 360 to 385 Pa * s at 200s -1 (Shear) and 165 to 180 Pa * s at 1200s -1 (shear), the drafting system S2 is operated at a temperature in the range from 60 ° C to 100 ° C, ie. all godets (usually 7 pieces) have the aforementioned temperature.
- the tow is preferably 240-360 ktex before drawing.
- the cable is first usually heated to a temperature in the range from 50 ° to 100 ° C., preferably 70 ° to 85 ° C., particularly preferably to about 78 ° C.
- a pressure of the cable infeed rollers of 1.0 to 6 , 0 bar, particularly preferably at about 2.0 bar, a pressure in the crimping chamber of 0.5 to 6.0 bar, particularly preferably 1.5-3.0 bar, with steam at between 1.0 and 2.0 kg / min., particularly preferably 1.5 kg / min., treated.
- the smooth or, if necessary, crimped fibers are picked up, followed by cutting and, if necessary, flattening and depositing in pressed bales as flakes.
- the staple fibers of the present invention are preferably cut on a mechanical cutting device downstream of the relaxation. There is no need to cut for cable types. These cable types are stored in the bale in uncut form and pressed.
- the degree of crimp is preferably at least 2 crimps (crimped arcs) per cm, preferably at least 3 crimps per cm, preferably 3 arcs per cm to 9.8 arcs per cm and particularly preferably 3.9 arcs per cm to 8.9 arcs per cm.
- values for the degree of crimp of about 5 to 5.5 sheets per cm are particularly preferred.
- the degree of crimp has to be set individually for the sheeting of textile surfaces using the wet laying process.
- the fibers according to the invention can be used to produce flat textile structures, which are also the subject of the invention. Because of the good dispersibility of the fibers according to the invention, such flat textile structures are preferably produced by wet-laid processes.
- textile fabric is therefore to be understood in its broadest sense in the context of this description. It can be all structures act containing the fibers according to the invention which have been produced by a surface-forming technique. Examples of such flat textile structures are nonwovens, in particular wet-laid nonwovens, preferably based on staple fibers, which are produced by means of thermobonding.
- the fibers according to the invention also have a good permanence of the dispersibility, i.e. the fibers have a very good dispersibility even after prolonged storage, e.g. several weeks or months, in the form of balls or comparable structures.
- the fibers according to the invention have good long-term dispersion, i.e. when the fibers are dispersed in liquid media, e.g. in water, the fibers remain dispersed for a longer time and only begin to settle after a long time.
- the fibers according to the invention are cut to a length of 2-12 mm.
- the amount of fibers is 0.25 g per liter of deionized water. For a better assessment, 1 g of fibers and 4 liters of deionized water are usually used.
- the fiber A / E-water mixture is stirred for at least three minutes using a standard laboratory magnetic stirrer (e.g. IKAMAG RCT) and a magnetic fish (80mm) (speed in the range 750-1500 rpm) and the stirrer is switched off. It is then judged whether all the fibers are dispersed.
- a standard laboratory magnetic stirrer e.g. IKAMAG RCT
- a magnetic fish 80mm
- the dispersion behavior of the fiber is assessed as follows: not dispersed (-) partially dispersed (o) completely dispersed (+) The above assessment takes place at defined time intervals.
- Nitrogen flow is 50 ml / min; Weight in the range of 2 - 3 mg for fibers.
- the final temperature is always around 50 ° C above the highest expected melting point.
- DSC measurement is carried out using a TA / Waters model Q100.
- the melt viscosity is determined using a Göttfert Rheo-Tester 1000 at a temperature of 190 ° C., at 200 s 1 (shear) and at 1200 s 1 (shear).
- Melt flow index is the weight (in grams) of a polymer that can be forced through an extrusion rheometer orifice (0.0825 inch diameter) when subjected to a force of 2160 grams in 10 minutes at 190 ° C.
- the latent heat of fusion (AHf), the latent heat of crystallization (AHC) and the crystallization temperature are determined by means of differential scanning calorimetry ("DSC") according to ASTM D-3418 (ASTM D3418-15, Standard Test Method for Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by Differential Scanning Calorimetry, ASTM International, West Conshohocken, PA, 2015, www.astm.org).
- test samples are prepared from the cable tape sample. With the help of a pair of tweezers, one end is clamped in a multiple clamp, and a de-curling weight is attached to the other end.
- the measurement is carried out using a bicomponent fiber of the type PLA / PBS (core / shell) with a titer of 2.2 dtex;
- the multiple clamp equipped with the test samples is attached to a stand so that the test samples hang freely in the stand under pretensioning force. There, the selected starting length (normally 150 mm) is marked on each fiber. This is done with the help of marking lines in the stand and marking points that are applied to the test samples. After marking, the assembled multiple terminal is removed and placed back on a velvet plate. There the de-crimping weights are removed and the free fiber ends are clamped in a second multiple clamp. The test specimens clamped between two multiple clamps are suspended in a wire frame without tension. This wire frame is placed in the middle of the shrink oven, which has been preheated to the correct treatment temperature (usual temperatures are 200 ° C, 110 ° C, 80 ° C).
- the wire frame is removed from the oven. After the two multiple clamps have cooled down, they are removed with the test samples and placed on a velvet plate. After an acclimatization time of 30 minutes, the back measurement can be made. For this purpose, the measuring samples are loaded again with the de-curling weights and hung in the stand.
- the adjustable marking line of the tripod is used for back measurement positioned so that the upper edge of the marking point can be brought into line with the marking line. Now read the length between the markings on the counter of the stand for each fiber individually to an accuracy of 1/10 mm.
- the raw materials PLA 6202D from NatureWorks and BioPBS Fz71PM were spun into a corresponding fiber using a bicspinning technology.
- the proportion of PLA as core material was 70% by weight and the sheath proportion was 30% by weight.
- an antioxidant with an active substance content of 0.05% was added to the PBS in order to achieve a correspondingly good spinning behavior at the spinning temperature of 240 ° C.
- a finishing agent was applied to the spinning material in order to be able to guarantee further processing.
- the spun material was then processed on a conventional staple fiber line with an undrawn cable thickness of approx. 42 ktex.
- BioPBS Fz71PM is a polybutylene succinate whose melt viscosity (190 ° C) is 279 Pa * s at 200s 1 (shear) and 139 Pa * s at 1200s 1 (shear).
- PLA 6202D is a polylactic acid whose relative density is 1.24 g / cm 3 (according to ASTM D792) and which has a melt flow index (g / 10min @ 210 ° C) in the range 15-30.
- the glass transition temperature is 55-60 ° C (according to ASTM D3417) and the crystalline melt temperature is 160-170 ° C (according to ASTM D3418).
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Multicomponent Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20151275 | 2020-01-10 | ||
PCT/EP2021/050119 WO2021140115A1 (de) | 2020-01-10 | 2021-01-06 | Biologisch abbaubare polymerfaser aus nachwachsenden rohstoffen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP4087962A1 true EP4087962A1 (de) | 2022-11-16 |
EP4087962B1 EP4087962B1 (de) | 2024-03-13 |
EP4087962B8 EP4087962B8 (de) | 2024-06-19 |
Family
ID=69159568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21700368.0A Active EP4087962B8 (de) | 2020-01-10 | 2021-01-06 | Biologisch abbaubare polymerfaser aus nachwachsenden rohstoffen |
Country Status (12)
Country | Link |
---|---|
US (1) | US20230031661A1 (de) |
EP (1) | EP4087962B8 (de) |
JP (1) | JP2023510254A (de) |
KR (1) | KR20220119674A (de) |
CN (1) | CN115315545A (de) |
BR (1) | BR112022013645A2 (de) |
CA (1) | CA3164162A1 (de) |
DK (1) | DK4087962T3 (de) |
FI (1) | FI4087962T3 (de) |
MX (1) | MX2022008527A (de) |
PT (1) | PT4087962T (de) |
WO (1) | WO2021140115A1 (de) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3816486A (en) | 1969-11-26 | 1974-06-11 | Du Pont | Two stage drawn and relaxed staple fiber |
JP4093595B2 (ja) * | 1997-05-02 | 2008-06-04 | カーギル インコーポレイテッド | 分解性ポリマー繊維の製造方法、製品、及び使用法 |
DE60031897T2 (de) * | 1999-06-18 | 2007-09-06 | Toray Industries, Inc. | Polymilchsäureharz, damit erhaltene Textilerzeugnisse und Verfahren zur Herstellung derselben |
US6177193B1 (en) | 1999-11-30 | 2001-01-23 | Kimberly-Clark Worldwide, Inc. | Biodegradable hydrophilic binder fibers |
JP2003336124A (ja) * | 2002-05-16 | 2003-11-28 | Nippon Ester Co Ltd | ポリ乳酸ノークリンプショートカット繊維 |
JP2006097148A (ja) * | 2004-09-28 | 2006-04-13 | Toray Ind Inc | 生分解性を有する芯鞘型複合繊維 |
US20060159918A1 (en) * | 2004-12-22 | 2006-07-20 | Fiber Innovation Technology, Inc. | Biodegradable fibers exhibiting storage-stable tenacity |
WO2007070064A1 (en) | 2005-12-15 | 2007-06-21 | Kimberly - Clark Worldwide, Inc. | Biodegradable multicomponent fibers |
JP5098554B2 (ja) * | 2006-10-11 | 2012-12-12 | 東レ株式会社 | 皮革様シートの製造方法 |
JP5938149B2 (ja) * | 2013-07-23 | 2016-06-22 | 宇部エクシモ株式会社 | 延伸複合繊維の製造方法及び延伸複合繊維 |
CN106232882A (zh) * | 2014-04-22 | 2016-12-14 | 纤维创新技术公司 | 包含脂族聚酯共混物的纤维以及由其形成的纱、丝束和织物 |
JP7364829B2 (ja) * | 2017-03-31 | 2023-10-19 | 大和紡績株式会社 | 分割型複合繊維及びこれを用いた繊維構造物 |
JP6611969B2 (ja) * | 2019-01-25 | 2019-11-27 | ダイワボウホールディングス株式会社 | 複合繊維、不織布および吸収性物品用シート |
-
2021
- 2021-01-06 PT PT217003680T patent/PT4087962T/pt unknown
- 2021-01-06 WO PCT/EP2021/050119 patent/WO2021140115A1/de active Search and Examination
- 2021-01-06 CN CN202180008434.4A patent/CN115315545A/zh active Pending
- 2021-01-06 JP JP2022541777A patent/JP2023510254A/ja active Pending
- 2021-01-06 FI FIEP21700368.0T patent/FI4087962T3/en active
- 2021-01-06 EP EP21700368.0A patent/EP4087962B8/de active Active
- 2021-01-06 US US17/791,804 patent/US20230031661A1/en active Pending
- 2021-01-06 BR BR112022013645A patent/BR112022013645A2/pt unknown
- 2021-01-06 KR KR1020227025263A patent/KR20220119674A/ko unknown
- 2021-01-06 DK DK21700368.0T patent/DK4087962T3/da active
- 2021-01-06 CA CA3164162A patent/CA3164162A1/en active Pending
- 2021-01-06 MX MX2022008527A patent/MX2022008527A/es unknown
Also Published As
Publication number | Publication date |
---|---|
PT4087962T (pt) | 2024-05-24 |
BR112022013645A2 (pt) | 2022-09-13 |
MX2022008527A (es) | 2022-08-08 |
CA3164162A1 (en) | 2021-07-15 |
US20230031661A1 (en) | 2023-02-02 |
EP4087962B1 (de) | 2024-03-13 |
WO2021140115A1 (de) | 2021-07-15 |
CN115315545A (zh) | 2022-11-08 |
EP4087962B8 (de) | 2024-06-19 |
FI4087962T3 (en) | 2024-04-24 |
DK4087962T3 (da) | 2024-06-10 |
JP2023510254A (ja) | 2023-03-13 |
KR20220119674A (ko) | 2022-08-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE60014408T2 (de) | Polymilchsäureharz, daraus enthaktene Textilprodukte und Verfahren zur Herstellung von Textilprodukten | |
DE4136694C2 (de) | Stärkefaser oder Stärke-modifizierte Faser, Verfahren zu ihrer Herstellung sowie ihre Verwendung | |
EP3129530B1 (de) | Polymerfaser mit verbesserter dispergierbarkeit | |
DE3782724T2 (de) | Verfahren zur herstellung von vliesstoffen. | |
EP2632985B1 (de) | Verwendung von polymermischungen zur herstellung von folienbändchen | |
EP0631638A1 (de) | Polyesterfaser und verfahren zu deren herstellung. | |
DE69914743T2 (de) | Verfahren zur herstellung von kraftbegrenzenden garnen | |
EP1208255B1 (de) | Hochfeste polyesterfäden und verfahren zu deren herstellung | |
EP2169110B1 (de) | Flammhemmende Hohlfaser mit silikonfreier Weichgriffausrüstung umfassend einen Polyether und ein Fettsäurecondensationsprodukt | |
EP4087962B1 (de) | Biologisch abbaubare polymerfaser aus nachwachsenden rohstoffen | |
EP0630995B1 (de) | Multifilament-Garn aus Polyäthylennaphthalat und Verfahren zu seiner Herstellung | |
EP0987353B1 (de) | Polyesterfasern und -filamente sowie Verfahren zu deren Herstellung | |
EP1334223B1 (de) | Verfahren zum herstellen von synthetischen fäden aus polymermischungen | |
EP1208253B1 (de) | Hmls-fäden aus polyester und spinnstreckverfahren zu deren herstellung | |
WO2019053074A1 (de) | Polymerfaser mit verbesserter langzeit-dispergierbarkeit | |
DE112019007638T5 (de) | Monofilament auf Polyesterbasis für Zahnbürste | |
DE1719235C3 (de) | Schmelzformungsmassen aus Polyester und Polyäther-Polyamid-Blockcopolymeren | |
DE1669488A1 (de) | Verfahren zur Herstellung verbesserter selbstkraeuselnder Bikomponentenfaeden | |
EP2177651B1 (de) | Verfahren zur Herstellung von PTT-Fasern mit verbesserter Einkräuselung | |
DE102014004928A1 (de) | Polymerfaser rnit verbesserter Dispergierbarkeit | |
DE19935145A1 (de) | Polyesterfasern und -filamente sowie Verfahren zu deren Herstellung | |
DE1812996A1 (de) | Zusammengesetzte Faeden | |
DE2110412B2 (de) | Verfahren zum herstellen von modifizierten polyamidfasern | |
DE1918057B (de) | Verfahren zur Herstellung von Poly athylen 1,2 diphenoxyathan p,p dicarboxylat Fasern | |
DE1956707A1 (de) | Faseriges Garn aus linearen thermoplastischen Polymeren und Verfahren zu dessen Herstellung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20220810 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20231009 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502021002965 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 502021002965 Country of ref document: DE Owner name: INDORAMA VENTURES FIBERS GERMANY GMBH, DE Free format text: FORMER OWNER: ANMELDERANGABEN UNKLAR / UNVOLLSTAENDIG, 80297 MUENCHEN, DE |
|
RAP4 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: INDORAMA VENTURES FIBERS GERMANY GMBH |
|
REG | Reference to a national code |
Ref country code: PT Ref legal event code: SC4A Ref document number: 4087962 Country of ref document: PT Date of ref document: 20240524 Kind code of ref document: T Free format text: AVAILABILITY OF NATIONAL TRANSLATION Effective date: 20240520 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PK Free format text: BERICHTIGUNG B8 |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 Effective date: 20240603 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |