EP3744888B1 - Tissu non-tissé filé-lié - Google Patents

Tissu non-tissé filé-lié Download PDF

Info

Publication number
EP3744888B1
EP3744888B1 EP19743580.3A EP19743580A EP3744888B1 EP 3744888 B1 EP3744888 B1 EP 3744888B1 EP 19743580 A EP19743580 A EP 19743580A EP 3744888 B1 EP3744888 B1 EP 3744888B1
Authority
EP
European Patent Office
Prior art keywords
nonwoven fabric
spun
bonded nonwoven
present
fibers
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.)
Active
Application number
EP19743580.3A
Other languages
German (de)
English (en)
Other versions
EP3744888A4 (fr
EP3744888A1 (fr
Inventor
Yuka NISHIGUCHI
Hiroo Katsuta
Yoshitsugu Funatsu
Yoshitaka Aranishi
Kentaro Kajiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Publication of EP3744888A1 publication Critical patent/EP3744888A1/fr
Publication of EP3744888A4 publication Critical patent/EP3744888A4/fr
Application granted granted Critical
Publication of EP3744888B1 publication Critical patent/EP3744888B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • D04H3/147—Composite yarns or filaments
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/05—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in another pattern, e.g. zig-zag, sinusoidal
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding

Definitions

  • the present invention relates to a spun-bonded nonwoven fabric that is soft and excellent in sense of touch.
  • a sanitary nonwoven fabric such as a paper diaper or a sanitary napkin is required to have good texture and softness for touch on skin when it is worn.
  • Filament nonwoven fabrics such as spun-bonded nonwoven fabrics have been used for various applications owing to their properties such as strength, air permeability and bending resistance, and their high productivity.
  • Various resins such as polyester based resins or polyolefin based resins have been used as the raw materials of the filament nonwoven fabrics.
  • copolymerized polyester based resins have been considered to be used for spun-bonded nonwoven fabrics.
  • Patent Literature 2 a nonwoven fabric composed of core-sheath fibers having, as a sheath component, a copolymerized polyester based resin of polyalkylene glycol and aromatic polyester and having a polyester based resin as a core component is proposed (see Patent Literature 2).
  • Patent Literature 3 to 5 and 7 describe polyester resin compositions that seek to provide improved moisture absorption properties to textiles comprising fibers manufacture from said compositions.
  • Patent Literature 6 describes a nanofiber aggregate comprised of polyester microfibers that have a small variation in their single yarn fineness.
  • Patent Literature 1 JP-A-2006-299424 ; Patent Literature 2: JP-A-2003-336156 ; Patent Literature 3: JP 2017 008190 ; Patent Literature 4: WO 2014/050652 ; Patent Literature 5: WO 2015/146790 ; Patent Literature 6: JP 2006 152531 ; Patent Literature 7: WO 2017/022569 A1
  • Patent Literature 1 there is a problem that when a resin in which 45 mass % of polyethylene glycol has been copolymerized with polytetramethylene terephthalate is used as the copolymerized polyester based resin as shown in the description thereof by way of example, water absorbency of fibers containing the resin is so high that a sticky sense of touch is provided to a nonwoven fabric formed of the fibers, thereby resulting in poor texture.
  • Patent Literature 2 there is a problem that since a rigid polyester resin is used in a core portion, the bending rigidity of fibers is so high that the softness deteriorates in a spun-bonded nonwoven fabric formed of the fibers.
  • an object of the present invention is to provide a spun-bonded nonwoven fabric that is soft and excellent in sense of touch.
  • the present inventors made intensive studies in order to attain the foregoing objects. As a result, the present inventors found that softness and a sense of touch can be improved on a large scale in a copolymerized polyester based resin in which a specific amount of polyethylene glycol has been copolymerized.
  • a spun-bonded nonwoven fabric of the present invention is a spun-bonded nonwoven fabric including a monocomponent fiber including a copolymerized polyester based resin in which 5 weight % or higher and 40 weight % or lower of a polyethylene glycol is copolymerized with a polyester based resin, in which the spun-bonded nonwoven fabric has a ⁇ MR of 0.5 % or higher and 15% or lower, and the monocomponent fiber has an average single fiber diameter of 11 ⁇ m or more and 15 ⁇ m or less.
  • the polyester based resin is a polyethylene terephthalate.
  • a spun-bonded nonwoven fabric capable of further improving softness, having a less sticky, smooth and excellent sense of touch. Further, processability into a sheet is excellent because the strength of fibers is enhanced, thereby improving productivity.
  • a nonwoven fabric of the present invention is a spun-bonded nonwoven fabric including a monocomponent fiber including a copolymerized polyester based resin in which 5 weight % or higher and 40 weight % or lower of a polyethylene glycol is copolymerized with a polyester based resin.
  • the spun-bonded nonwoven fabric is characterized in that a ⁇ MR of the spun-bonded nonwoven fabric is 0.5 % or higher and 15% or lower, and the monocomponent fiber has an average single fiber diameter of 11 ⁇ m or more and 15 ⁇ m or less.
  • polyester based resin examples include polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, and polylactic acid. Particularly, for a preferred embodiment, polyethylene terephthalate is used.
  • polyethylene terephthalate is used.
  • the resin can be made into fibers that have excellent softness and an excellent sense of touch. In addition, since the resin can be drawn at a high spinning speed, the fibers tend to develop orientation crystallization and also have mechanical strength.
  • the number-average molecular weight of the polyethylene glycol contained in the copolymerized polyester based resin used in the present invention is preferably 4,000 or more and 20,000 or less.
  • the number-average molecular weight of the polyethylene glycol is set at 4,000 or more and more preferably at 5,000 or more, moisture absorbency can be given to the copolymerized polyester based resin so that a nonwoven fabric having a good sense of touch can be obtained.
  • the number-average molecular weight of the polyethylene glycol is set at 20,000 or less and more preferably at 10,000 or less, the copolymerized polyester based resin has an excellent fiber-forming property.
  • the spun-bonded nonwoven fabric has few defects.
  • the number-average molecular weight of the polyethylene glycol contained in the copolymerized polyester resin in the present invention designates a value measured and calculated in the following method.
  • the copolymerization amount of the polyethylene glycol contained in the polymerized polyester based resin used in the present invention is characterized by being 5 weight % or higher and 40 weight % or lower.
  • the copolymerization amount of the polyethylene glycol is set at 5 weight % or higher and more preferably at 7 weight % or higher, a nonwoven fabric having excellent softness and an excellent sense of touch can be obtained.
  • the copolymerization amount of the polyethylene glycol is set at 40 weight % or lower and more preferably at 20 weight % or lower, the resin can be formed into fibers having heat resistance durable to practical use and high mechanical strength.
  • the copolymerization amount of the polyethylene glycol contained in the copolymerized polyester resin in the present invention designates a value measured by a method which will be described in Examples.
  • Coloring pigment an antioxidant, a lubricant such as polyethylene wax, a heat-resistance stabilizer, etc. can be added to the copolymerized polyester based resin used in the present invention, so long as the addition thereof does not impair the effects of the present invention.
  • the melting point of the copolymerized polyester based resin used in the present invention is preferably 200°C or higher and 300 °C or lower, and more preferably 220°C or higher and 280 °C or lower.
  • the melting point of the copolymerized polyester based resin is set preferably at 200°C or higher and more preferably at 220°C or higher, heat resistance durable to practical use can be obtained easily.
  • the melting point of the copolymerized polyester based resin is set preferably at 300°C or lower and more preferably at 280°C or lower, each yarn ejected from a spinneret can be cooled easily to inhibit fibers from being fused with each other. Thus, the obtained spun-bonded nonwoven fabric has few defects.
  • the melting point of the copolymerized polyester based resin in the present invention designates a value obtained from a peak top temperature in an endothermic peak obtained by measurement on the condition of a temperature rise rate of 16°C/min under nitrogen by a differential scanning calorimetry.
  • a method for manufacturing copolymerized polyester in the present invention is a known polymerization method such as a transesterification method or an esterification method.
  • a transesterification method an ester-forming derivative of terephthalic acid and ethylene glycol are charged in a reaction vessel and brought into reaction within a range of 150°C or higher and 250°C or lower under the existence of a transesterification catalyst.
  • a stabilizer, a polycondensation catalyst, etc. are added, and heated within a range of 250°C or higher and 300°C or lower under reduced pressure of 500 Pa or lower so as to cause reaction for 3 hours or more and 5 hours or less.
  • copolymerized polyester can be obtained.
  • esterification method terephthalic acid and ethylene glycol are charged in a reaction vessel, and brought into esterification reaction at 150°C or higher and 270°C or lower under a pressurized nitrogen atmosphere. After the esterification reaction is terminated, a stabilizer, a polycondensation catalyst, etc. are added, and heated within a range of 250°C or higher and 300°C or lower under reduced pressure of 500 Pa or lower so as to cause reaction for 3 hours or more and 5 hours or less. Thus, copolymerized polyester can be obtained.
  • the timing when the polyethylene glycol is added is not particularly limited.
  • the polyethylene glycol may be added together with other raw materials before the esterification reaction or the transesterification reaction.
  • the polyethylene glycol is added after the termination of the esterification reaction or the transesterification reaction and before the start of the polycondensation reaction.
  • examples of the transesterification catalyst include zinc acetate, manganese acetate, magnesium acetate, and titanium tetrabutoxide.
  • examples of the polycondensation catalyst include antimony trioxide, germanium dioxide, and titanium tetrabutoxide.
  • ⁇ MR of the spun-bonded nonwoven fabric of the present invention is 0.5 % or higher and 15% or lower.
  • the present inventors found that there is a high correlation between ⁇ MR which is a parameter conventionally used as an index of a moisture absorbing-releasing property of a fiber and a sense of touch on a spun-bonded nonwoven fabric.
  • the ⁇ MR is set at 0.5 % or higher and more preferably at 2% or higher, the spun-bonded nonwoven fabric is in a state where the surface thereof moderately has absorbed moisture so that the sense of touch on the surface thereof becomes a good feeling with moist feeling.
  • the spun-bonded nonwoven fabric can have smoothness and softness suitable for its high-speed production.
  • the spun-bonded nonwoven fabric can have excellent high-degree processability.
  • the ⁇ MR can be adjusted by the kind of the polyester component, the number-average molecular weight of the contained polyethylene glycol, and the copolymerization amount thereof.
  • the copolymerized polyester based fibers forming the spun-bonded nonwoven fabric of the present invention are monocomponent fibers.
  • the softness belonging to the copolymerized polyester based resin is reflected on the spun-bonded nonwoven fabric so that the spun-bonded nonwoven fabric can have a soft sense of touch. Further, spinnability is improved in comparison with composite fibers. Thus, the spun-bonded nonwoven fabric has few defects.
  • the average single fiber diameter of the copolymerized polyester based fibers forming the spun-bonded nonwoven fabric of the present invention is 11 ⁇ m or more and 15 ⁇ m or less.
  • the average single fiber diameter is set at 11 ⁇ m or more, processability at the time of post-processing can be improved so that the number of defects can be reduced.
  • the average single fiber diameter is set at 15 ⁇ m or less, the sense of touch on the surface of the spun-bonded nonwoven fabric obtained from the copolymerized polyester based fibers becomes smooth.
  • the narrow average single-fiber diameter reduction in sectional secondary moment is also exhibited so that the softness is further improved.
  • the average single fiber diameter of the copolymerized polyester based fibers in the present invention designates a value calculated as follows. That is, 10 small-piece samples are sampled at random from a nonwoven web pulled by an ejector, drawn and then collected on a net. The surfaces of the samples are photographed at a magnification of 500 to 1,000 times by a microscope, and widths of 10 fibers from each sample are measured. A value ( ⁇ m) calculated from an arithmetic average value of the widths of a total of 100 fibers is regarded as the average single fiber diameter.
  • the spun-bonded nonwoven fabric of the present invention has preferably a bending return property of 0.2 cm -1 or more and 1.0 cm -1 or less.
  • a bending return property of 0.2 cm -1 or more and 1.0 cm -1 or less.
  • the bending return property is more preferably 0.8 cm -1 or less, and even more preferably 0.6 cm -1 or less.
  • the bending return property is more preferably 0.3 cm -1 or more, and even more preferably 0.4 cm -1 or more.
  • the bending return property can be controlled by the aforementioned thermoplastic resin, the additives and the fiber diameter, and/or, the spinning speed, the mass per unit area, the apparent density and the bonding method which will be described later.
  • the bending return property of the spun-bonded nonwoven fabric in the present invention designates a value obtained in the following equation using bending rigidity (B) and bending hysteresis (2HB) in each of two directions perpendicular to each other measured by a bending tester (for example, "KES-FB2" made by Kato Tech Co., Ltd.).
  • the spun-bonded nonwoven fabric of the present invention has preferably a bending rigidity of 10 ⁇ N ⁇ cm 2 /cm or more and 300 ⁇ N ⁇ cm 2 /cm or less.
  • the bending rigidity is 300 ⁇ N ⁇ cm 2 /cm or less, the spun-bonded nonwoven fabric can be bent easily so that a soft sense of touch can be obtained.
  • the bending rigidity is 10 ⁇ N ⁇ cm 2 /cm or more, moderate response to bending can be obtained.
  • the bending rigidity is more preferably 250 ⁇ N ⁇ cm 2 /cm or less, and even more preferably 200 ⁇ N ⁇ cm 2 /cm or less.
  • the bending rigidity is more preferably 20 ⁇ N ⁇ cm 2 /cm or more, and even more preferably 30 ⁇ N ⁇ cm 2 /cm or more.
  • the bending rigidity can be controlled by the aforementioned thermoplastic resin, the additives and the fiber diameter, and/or, the spinning speed, the mass per unit area, the apparent density and the bonding method which will be described later.
  • the spun-bonded nonwoven fabric in the present invention has preferably a tensile elasticity of 5 MPa or more and 100 MPa or less.
  • the spun-bonded nonwoven fabric can be deformed easily so that a sense of touch on the spun-bonded nonwoven fabric following a hand can be obtained.
  • the tensile elasticity is 5 MPa or more, a sense of moderate resistance can be obtained.
  • the tensile elasticity is more preferably 80 MPa or less, and even more preferably 60 MPa or less.
  • the tensile elasticity is more preferably 7 MPa or more, and more preferably 9 MPa or more.
  • the tensile elasticity can be controlled by the aforementioned thermoplastic resin, the additives and the fiber diameter, and/or, the spinning speed, the mass per unit area, the apparent density and the bonding method which will be described later.
  • the tensile elasticity of the spun-bonded nonwoven fabric in the present invention is an arithmetic average of tensile elasticities obtained in two directions perpendicular to each other by tensile testing with a distance of at least 5 cm between grips performed according to "6.3.1 Normal Time” of "6.3 Tensile Strength and Elongation Rate (ISO method)" of "General Nonwoven Fabric Testing Method” of JIS L1913: 2010.
  • the tensile elasticity designates a value obtained as follows. That is, a curve (stress-stain curve) is obtained by a load and an elongation rate. The largest inclination (where increase of the load is large relatively to the elongation rate) in a region where the elongation rate is 20% or lower is obtained.
  • the sectional area in the present invention is a product of a sample width and a thickness (T o ) measured under a load of 0.5 g/cm 2 by a compression tester (for example, "KES-FB3" made by Kato Tech Co., Ltd.).
  • the tensile strength per unit mass per unit area is preferably 0.3 (N/5 cm)/(g/m 2 ) or more, and 10 (N/5 cm)/(g/m 2 ) or less.
  • the spun-bonded nonwoven fabric can withstand the performance of passing through a process for manufacturing a paper diaper or the like and use as a product.
  • the spun-bonded nonwoven fabric can also have softness.
  • the tensile strength per unit mass per unit area is more preferably 8 (N/5 cm)/(g/m 2 ) or less, and even more preferably 6 (N/5 cm)/(g/m 2 ) or less.
  • the tensile strength per unit mass per unit area is more preferably 0.4 (N/5 cm)/(g/m 2 ) or more, and even more preferably 0.5 (N/5 cm)/(g/m 2 ) or more.
  • the tensile strength per unit mass per unit area can be controlled by the aforementioned thermoplastic resin, the additives and the fiber diameter, and/or, the spinning speed, the mass per unit area, the apparent density and the bonding method which will be described later.
  • the tensile strength of the spun-bonded nonwoven fabric in the present invention is a value obtained by dividing, by the mass per unit area, an average of tensile strengths (strengths at which a sample is broken) obtained in two directions perpendicular to each other by tensile testing with a distance of at least 5 cm between grips performed according to "6.3.1 Normal Time” of "6.3 Tensile Strength and Elongation Rate (ISO method)" of " General Nonwoven Fabric Testing Method” of JIS L1913: 2010.
  • the bending resistance of the spun-bonded nonwoven fabric of the present invention is 70 mm or lower.
  • the bending resistance is set preferably at 70 mm or lower, more preferably at 67 mm or lower and even more preferably at 64 mm or lower, satisfactory softness can be obtained particularly when the spun-bonded nonwoven fabric is used as a nonwoven fabric for a sanitary material.
  • the lower limit of the bending resistance is preferably 10 mm or higher.
  • the bending resistance can be adjusted by the resin, the mass per unit area, the average single-fiber diameter and embossing rolls (degree of press bonding, temperature, and linear pressure).
  • the bending resistance in the present invention is calculated according to a "6.7.3 41.5° Cantilever Method" of "6.7 Bending Resistance” of "General Nonwoven Fabric Testing Method” of JIS L1913: 2010.
  • a calculation method will be described. First, five test pieces each measuring 25 mm in width by 150 mm are sampled. Each test piece is placed on a horizontal table having a slope of 45° such that its short sides are aligned with a base line of a scale. Next, the test piece is manually slid along the slope. As soon as a center point of one end of the test piece touches the slope, the moving length of the position of the other end is read by the scale. Such moving lengths are measured as to the both sides of the five test pieces. An average value calculated from the moving lengths is used as the bending resistance in the present invention.
  • the mass per unit area of the spun-bonded nonwoven fabric of the present invention is preferably set at 5 g/m 2 or more and 50 g/m 2 or less.
  • the mass per unit area is set at 10 g/m 2 or more and 30 g/m 2 or less.
  • softness can be exhibited suitably in the spun-bonded nonwoven fabric.
  • the mass per unit area in the present invention designates a value obtained as follows.
  • the spun-bonded nonwoven fabric of the present invention has preferably an apparent density of 0.01 g/cm 3 or more and 0.30 g/cm 3 or less.
  • the apparent density is 0.01 g/cm 3 or more, form stability applicable to practical use can be obtained easily, and the bending return rate can be reduced easily.
  • the apparent density is 0.30 g/cm 3 or less, air permeability and softness can be obtained easily.
  • the apparent density is more preferably 0.25 g/cm 3 or less, and even more preferably 0.20 g/cm 3 or less.
  • the apparent density is more preferably 0.03 g/cm 3 or more, and even more preferably 0.05 g/cm 3 or more.
  • the apparent density of the spun-bonded nonwoven fabric in the present invention is a value obtained by dividing the mass per unit area by the thickness.
  • the spun-bonded nonwoven fabric of the present invention can be used broadly for a medical sanitary material, a living material, an industrial material, etc.
  • the spun-bonded nonwoven fabric is excellent in softness and good in sense of touch and is also good in processability owing to few defects as a product. Therefore, the spun-bonded nonwoven fabric can be used suitably particularly for a sanitary material.
  • the spun-bonded nonwoven fabric can be used as a disposable diaper, a sanitary item, a base fabric of a poultice material, etc.
  • a spun-bonding method for manufacturing a spun-bonded nonwoven fabric is a manufacturing method requiring the steps of: melting a resin; spinning the resin from a spinneret; then cooling and solidifying the resin to obtain yarns; pulling the yarns by an ejector to draw the yarns; collecting the yarns on a moving net to thereby form the yarns into a nonwoven fiber web; and thermally bonding the nonwoven fiber web.
  • Various shapes such as round shapes or rectangular shapes can be used as the shapes of the spinneret and the ejector to be used.
  • a combination of a rectangular spinneret and a rectangular ejector are used in a preferred embodiment because the use amount of compressed air can be comparatively reduced and the yarns can be prevented from being easily fused with each other or from easily rubbing on each other.
  • the spinning temperature at which the copolymerized polyester based resin is melted and spun is preferably 240°C or higher and 320°C or lower, more preferably 250°C or higher and 310°C or lower, further preferably 260°C or higher and 300°C or lower.
  • the spinning temperature is set within the aforementioned range, the resin can be brought into a stable melting state to obtain excellent spinning stability.
  • the copolymerized polyester based resin is melted and weighed in an extruder, fed to the spinneret, and spun out as filament fibers.
  • Yarns of the filament fibers spun out are next cooled.
  • methods for cooling the yarns spun out include a method for forcibly blowing cool air to the yarns, a method for naturally cooling the yarns at an atmospheric temperature around the yarns, and a method for adjusting the distance between the spinneret and the ejector. A method in which those methods are combined may be used.
  • the cooling conditions may be suitably adjusted and used in consideration of the discharge rate per single-hole of the spinneret, the spinning temperature, the atmospheric temperature, etc.
  • the yarns cooled and solidified are pulled and drawn by compressed air sprayed from the ejector.
  • the spinning speed is preferably 2,000 m/min or higher, more preferably 3,000 m/min or higher, and even more preferably 4,000 m/min or higher.
  • the spinning speed is set at 2,000 m/min or higher, high productivity can be provided, and the fibers develop orientation crystallization so that filament fibers with high strength can be obtained.
  • the mass per length of 10,000 m was calculated from the average single fiber diameter and the solid density of the resin used, and the calculated value was rounded off to the first decimal place to obtain the single-fiber fineness.
  • the obtained filament fibers are collected on a moving net to be formed into a nonwoven fiber web.
  • the filament fibers are drawn at a high spinning speed so that the fibers ejected from the ejector can be collected on the net in a state where the fibers are controlled by a high-speed air flow.
  • a nonwoven fabric which is highly uniform with reduced entanglement among the fibers can be obtained.
  • the obtained nonwoven fiber web is integrated by heat bonding.
  • an intended spun-bonded nonwoven fabric can be obtained.
  • Examples of methods for integrating the nonwoven fiber web by heat bonding include methods of heat bonding with various rolls such as: hot embossing rolls which are a pair of upper and lower rolls each having an engraved surface (have recesses and protrusions on the surface); hot embossing rolls including a combination of a roll having a flat (smooth) surface and a roll having an engraved surface (has recesses and protrusions on the surface); and hot calendar rolls including a combination of a pair of upper and lower flat (smooth) rolls.
  • a proportion of an embossed bonding area in the heat bonding is preferably 5% or higher and 30% or lower.
  • the proportion of the bonding area is set preferably at 5% or higher and more preferably at 10% or higher, strength applicable to practical use as the spun-bonded nonwoven fabric can be obtained.
  • the proportion of the bonding area is set preferably at 30% or less and more preferably at 20% or less, sufficient softness can be obtained particularly for use as a spun-bonded nonwoven fabric for a sanitary material.
  • the bonding area herein means a proportion of parts where the protrusions of the upper roll and the protrusions of the lower roll overlap each other and abut against the nonwoven fiber web, with respect to the whole nonwoven fabric.
  • the bonding area means a proportion of parts where, of the roll having recesses and protrusions, the protrusions abut against the nonwoven fiber web, with respect to the whole nonwoven fabric.
  • the shape engraved in the hot embossing rolls may be any of circular, elliptic, square, rectangular, parallelogrammic, rhombic, regularly hexagonal, and regularly octagonal shapes and the like.
  • the linear pressure of the hot embossing rolls during the heat bonding is preferably 5 to 70 N/cm.
  • the linear pressure of the rolls is set preferably at 5 N/cm or higher, more preferably at 10 N/cm or higher and even more preferably at 20 N/cm or higher, sufficient heat-bonding can be performed to obtain strength applicable to practical use as a nonwoven fabric.
  • the linear pressure of the rolls is set preferably at 70 N/cm or lower, more preferably at 60 N/cm or lower and even more preferably at 50 N/cm or lower, sufficient softness can be obtained particularly for use as a nonwoven fabric for a sanitary material.
  • Copolymerized polyethylene terephthalate in which the number-average molecular weight and the copolymerization amount of contained polyethylene glycol were 5,500 and 12 weight % was melted by an extruder.
  • the yarns were pulled and drawn by compressed air from a rectangular ejector having an ejector pressure of 0.30 MPa, and then collected on a moving net.
  • a nonwoven fiber web composed of copolymerized polyester filament fibers was obtained.
  • the obtained web was heat-bonded at a heat bonding temperature of 230°C and at a linear pressure of 50 N/cm by use of a pair of upper and lower heat embossing rolls.
  • the upper embossing roll was a metallic embossing roll having polka dots engraving thereon and having a proportion of bonding area of 16%
  • the lower embossing roll was a metallic flat roll.
  • a spun-bonded nonwoven fabric was obtained in the same method as in Example 1, except that the copolymerization amount of contained polyethylene glycol was 8 weight %.
  • the obtained spun-bonded nonwoven fabric was evaluated and the results thereof are shown in Table 1.
  • a spun-bonded nonwoven fabric was obtained in the same method as in Example 1, except that the copolymerization amount of contained polyethylene glycol was 45 weight %.
  • the obtained spun-bonded nonwoven fabric was evaluated and the results thereof are shown in Table 1.
  • a spun-bonded nonwoven fabric was obtained in the same method as in Example 1, except that the copolymerization amount of contained polyethylene glycol was 2 weight %.
  • the obtained spun-bonded nonwoven fabric was evaluated and the results thereof are shown in Table 1.
  • Examples 1 and 2 had an excellent sense of touch and high softness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)
  • Artificial Filaments (AREA)
  • Multicomponent Fibers (AREA)

Claims (2)

  1. Tissu non tissé filé-lié comprenant une fibre monocomposant comprenant une résine à base de polyester copolymérisé dans laquelle 5 % en poids ou plus et 40 % en poids ou moins d'un polyéthylène glycol sont copolymérisés avec une résine à base de polyester,
    dans lequel le tissu non tissé filé-lié présente une valeur ΔMR de 0,5 % ou plus et de 15 % ou moins, telle que déterminée par le procédé de la description, et
    la fibre monocomposant présente un diamètre de fibre unique moyen de 11 µm ou plus et de 15 µm ou moins, dans lequel le diamètre de fibre unique moyen est mesuré par le procédé de la description.
  2. Tissu non tissé filé-lié selon la revendication 1, dans lequel la résine à base de polyester est un polyéthylène téréphtalate.
EP19743580.3A 2018-01-25 2019-01-23 Tissu non-tissé filé-lié Active EP3744888B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2018010254 2018-01-25
JP2018183755 2018-09-28
PCT/JP2019/002142 WO2019146660A1 (fr) 2018-01-25 2019-01-23 Tissu non-tissé filé-lié

Publications (3)

Publication Number Publication Date
EP3744888A1 EP3744888A1 (fr) 2020-12-02
EP3744888A4 EP3744888A4 (fr) 2021-05-05
EP3744888B1 true EP3744888B1 (fr) 2025-03-12

Family

ID=67396025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19743580.3A Active EP3744888B1 (fr) 2018-01-25 2019-01-23 Tissu non-tissé filé-lié

Country Status (9)

Country Link
US (1) US20210040660A1 (fr)
EP (1) EP3744888B1 (fr)
JP (2) JPWO2019146660A1 (fr)
KR (1) KR102570892B1 (fr)
CN (1) CN111655919A (fr)
MY (1) MY205345A (fr)
SG (1) SG11202006937PA (fr)
TW (1) TWI776012B (fr)
WO (1) WO2019146660A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7059850B2 (ja) * 2018-07-26 2022-04-26 東レ株式会社 積層不織布
CA3165598A1 (fr) * 2019-12-23 2021-07-01 Toray Industries, Inc. Tissu non tisse file-lie, materiau filtrant stratifie de filtre, materiau filtrant pour filtre plisse de collecteur de poussiere, filtre plisse de collecteur de poussiere et collecteur de poussiere de type pneumatique a volume d'air moyen
CN116324066B (zh) * 2020-09-28 2024-03-12 东洋纺Mc株式会社 长纤维无纺布和长纤维无纺布的制造方法
JP7619145B2 (ja) * 2021-04-23 2025-01-22 東レ株式会社 スパンボンド不織布の製造方法
JPWO2023026973A1 (fr) 2021-08-26 2023-03-02
JP2023182074A (ja) * 2022-06-14 2023-12-26 東レ株式会社 共重合ポリエステル組成物、ならびに、これによって構成されるスパンボンド不織布、衛生材料

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017022569A1 (fr) * 2015-07-31 2017-02-09 東レ株式会社 Fibre de polyéthylène téréphtalate et résine de polyester

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5643321A (en) * 1979-09-18 1981-04-22 Toyobo Co Ltd Improved production process of modified polyester
JPS6290312A (ja) * 1985-10-14 1987-04-24 Teijin Ltd 改質ポリエステル繊維
US6509091B2 (en) * 1999-11-19 2003-01-21 Wellman, Inc. Polyethylene glycol modified polyester fibers
JP2001329429A (ja) * 2000-05-22 2001-11-27 Toray Ind Inc 吸湿性に優れたポリエステル繊維
TW550313B (en) * 2000-05-22 2003-09-01 Toray Industries Process for producing polyester fiber and polyester composition
JP4394330B2 (ja) * 2002-01-31 2010-01-06 大王製紙株式会社 紙おむつ
JP3952282B2 (ja) 2002-05-13 2007-08-01 東洋紡績株式会社 ポリエステル系長繊維不織布、それを用いた透湿防水膜及び包装材
JP4229115B2 (ja) * 2002-10-23 2009-02-25 東レ株式会社 ナノファイバー集合体
JP2004285548A (ja) * 2003-01-30 2004-10-14 Toyobo Co Ltd 機能性繊維、その繊維構造物、および吸収性物品
JP4849820B2 (ja) * 2005-04-15 2012-01-11 旭化成せんい株式会社 吸水性不織布
JP2007070467A (ja) * 2005-09-07 2007-03-22 Teijin Fibers Ltd 共重合ポリエステルおよびそれからなる繊維
KR101009750B1 (ko) * 2007-06-15 2011-01-19 코오롱인더스트리 주식회사 폴리에스테르 장섬유 스펀본드 부직포 및 이의 제조방법
CN101104964A (zh) * 2007-07-13 2008-01-16 中国石油化工股份有限公司 用于制备高吸湿和高排湿聚酯织物的聚酯纤维
CN101704941B (zh) * 2009-11-05 2011-11-23 江阴博伦化纤有限公司 应用于水刺无纺布的高柔性pet共聚物的制备方法
CN102041578B (zh) * 2010-11-16 2013-06-26 远纺工业(上海)有限公司 可吸湿伸长的改性聚酯丝状结构物的制备方法
KR102079522B1 (ko) * 2012-09-26 2020-02-20 도레이 카부시키가이샤 공중합 폴리에스테르 및 그것으로 이루어진 폴리에스테르 섬유
WO2015146790A1 (fr) * 2014-03-25 2015-10-01 東レ株式会社 Fibre à structure de séparation de phase et procédé de fabrication d'une telle fibre
CN105369386A (zh) * 2014-08-11 2016-03-02 东丽纤维研究所（中国）有限公司 一种聚酯纤维及其制备方法
CN104328531B (zh) * 2014-11-11 2016-04-20 江苏江南高纤股份有限公司 直接纺丝水刺非织造布用亲水性聚酯短纤维制造方法
JP6686304B2 (ja) * 2015-06-22 2020-04-22 東レ株式会社 吸湿繊維用ポリエステル組成物の製造方法
JP2018010254A (ja) 2016-07-15 2018-01-18 キヤノンファインテックニスカ株式会社 加熱装置及び画像形成装置
JP6232606B1 (ja) 2017-04-27 2017-11-22 株式会社ノアテック 排水処理方法
CN112771221A (zh) * 2018-09-28 2021-05-07 东丽株式会社 纺粘无纺布

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017022569A1 (fr) * 2015-07-31 2017-02-09 東レ株式会社 Fibre de polyéthylène téréphtalate et résine de polyester

Also Published As

Publication number Publication date
KR102570892B1 (ko) 2023-08-25
JPWO2019146660A1 (ja) 2021-01-28
SG11202006937PA (en) 2020-08-28
KR20200110346A (ko) 2020-09-23
WO2019146660A1 (fr) 2019-08-01
EP3744888A4 (fr) 2021-05-05
TWI776012B (zh) 2022-09-01
JP2023178500A (ja) 2023-12-14
EP3744888A1 (fr) 2020-12-02
TW201936699A (zh) 2019-09-16
CN111655919A (zh) 2020-09-11
MY205345A (en) 2024-10-16
US20210040660A1 (en) 2021-02-11

Similar Documents

Publication Publication Date Title
EP3744888B1 (fr) Tissu non-tissé filé-lié
CN101415543B (zh) 可生物降解的无纺层压材料
KR101441593B1 (ko) 필터용 부직포 및 그 제조 방법
EP3812027B1 (fr) Tissu non-tissé filé-lié destiné à être utilisé dans des filtres, et son procédé de fabrication
KR101396752B1 (ko) 특성이 개선된 섬유 및 부직포의 제조 방법
CN101896649A (zh) 由包含聚乳酸和聚醚共聚物的热塑性组合物形成的生物可降解纤维
US20100190406A1 (en) Heat-bondable composite fiber, process for producing the same, and fibrous mass
EP2716800A1 (fr) Fibres de poly(sulfure de phénylène) et tissu non tissé
KR102256324B1 (ko) 열융착성 복합 섬유 및 이를 이용한 부직포
EP4397798A1 (fr) Non-tissé biodégradable et son utilisation
KR20080014947A (ko) 특성이 개선된 섬유 및 부직포
CN103890250A (zh) 热伸长性纤维及使用其的无纺布
JP4131852B2 (ja) 熱融着性複合繊維
JP2022055016A (ja) 長繊維不織布、及び、長繊維不織布の製造方法
KR20220034111A (ko) 스펀본드 부직포 및 적층 부직포
JP2741122B2 (ja) 伸縮性嵩高長繊維不織布及びその製造方法
JP4582886B2 (ja) 耐候性長繊維不織布
TWI810398B (zh) 紡黏不織布、紡黏纖維、及積層不織布
JPH04100963A (ja) 捲縮性連続フィラメントよりなる不織布、及びその製造方法
US20240328046A1 (en) Bonded nonwoven fabric
JP7059850B2 (ja) 積層不織布
JP2002129459A (ja) 生分解性不織布およびその製造方法
JP2011162925A (ja) ポリ乳酸系長繊維不織布
TWI324647B (en) High stretch recovery non-woven fabric and process for preparing
JP2022167302A (ja) スパンボンド不織布の製造方法

Legal Events

Date Code Title Description
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: 20200714

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

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20210407

RIC1 Information provided on ipc code assigned before grant

Ipc: D04H 3/14 20120101AFI20210330BHEP

Ipc: D01F 6/92 20060101ALI20210330BHEP

Ipc: D04H 3/011 20120101ALI20210330BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20240610

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: 20241105

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

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: TORAY INDUSTRIES, INC.

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

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: 602019067173

Country of ref document: DE

P01 Opt-out of the competence of the unified patent court (upc) registered

Free format text: CASE NUMBER: APP_10922/2025

Effective date: 20250305

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20250312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250613

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1775081

Country of ref document: AT

Kind code of ref document: T

Effective date: 20250312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250714

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250712

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602019067173

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250312

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: CH

Ref legal event code: L10

Free format text: ST27 STATUS EVENT CODE: U-0-0-L10-L00 (AS PROVIDED BY THE NATIONAL OFFICE)

Effective date: 20260121

26N No opposition filed

Effective date: 20251215

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20251203

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20260121

Year of fee payment: 8