WO2020241960A1 - 섬유 웹, 피브릴상 섬유 집합체 또는 부직포를 제조하기 위한 장치 및 방법, 및 그에 의하여 제조된 섬유 웹, 피브릴상 섬유 집합체 또는 부직포 - Google Patents
섬유 웹, 피브릴상 섬유 집합체 또는 부직포를 제조하기 위한 장치 및 방법, 및 그에 의하여 제조된 섬유 웹, 피브릴상 섬유 집합체 또는 부직포 Download PDFInfo
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- WO2020241960A1 WO2020241960A1 PCT/KR2019/007068 KR2019007068W WO2020241960A1 WO 2020241960 A1 WO2020241960 A1 WO 2020241960A1 KR 2019007068 W KR2019007068 W KR 2019007068W WO 2020241960 A1 WO2020241960 A1 WO 2020241960A1
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- fibrous web
- fabric
- fiber aggregate
- cylinder
- nonwoven fabric
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- 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
- D04H1/74—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 orientated, e.g. in parallel (anisotropic fleeces)
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- 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
- D04H17/00—Felting apparatus
- D04H17/10—Felting apparatus for felting between rollers, e.g. heated rollers
- D04H17/12—Multi-roller apparatus
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/001—Use of materials characterised by their function or physical properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/04—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
- A61L24/08—Polysaccharides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/04—Macromolecular materials
- A61L31/042—Polysaccharides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/02—Carding machines
- D01G15/08—Carding machines with flats or like members or endless card sheets operating in association with a main cylinder
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- 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
- D04H1/425—Cellulose series
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- 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
- D04H1/425—Cellulose series
- D04H1/4258—Regenerated cellulose series
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- 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
- D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
- D06C15/02—Calendering, pressing, ironing, glossing or glazing textile fabrics between co-operating press or calender rolls
-
- 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
- D10B2509/00—Medical; Hygiene
- D10B2509/02—Bandages, dressings or absorbent pads
- D10B2509/022—Wound dressings
Definitions
- the present invention is an apparatus for producing a fibrous web, a fibrillar fiber aggregate or a nonwoven fabric using a woven fabric, and a fibrous web, fibril-like fibers using the apparatus
- Non-woven fabric refers to a fiber product made by forming a web in the shape of a sheet (cloth) by tangling various fibers according to mutual characteristics without going through processes such as twisting, weaving, and knitting, and bonding them by mechanical and physical methods.
- the nonwoven fabric manufacturing process generally consists of three steps such as web formation ⁇ web bonding ⁇ processing.
- the web forming process is a process of making a web by distributing and laminating fibers to a uniform thickness as possible on a conveyor.
- the web bonding process is a process of tangling or bonding a fiber aggregate to have shape stability by giving the web adequate strength so that the fibers are not separated.
- the processing process is the process of completing the nonwoven fabric through dyeing or processing required for the final use.
- Nonwoven fabrics are divided into wet method and dry method according to the web formation method. Dry and wet processes are divided into whether the web is formed in a dry or wet state. That is, in the dry method, fibers are formed in a web state in air, and in the wet method, the fibers are dispersed in a liquid to obtain a web. Therefore, the web forming method is classified according to the matrix that disperses the fibers, that is, air and liquid.
- nonwoven fabrics are also divided into long fiber nonwoven fabrics and short fiber nonwoven fabrics depending on the type of fiber.
- Oxidized Regenerated Cellulose is a known absorbable hemostatic substance. Many methods are known for forming various types of hemostatic agents based on Oxidized Cellulose (OC) into powders, textiles, nonwovens, knitted fabrics, other forms and combinations thereof. Hemostatic wound dressings currently used include knitted or nonwoven fabrics containing oxidized regenerated cellulose (ORC).
- Korean Patent Publication No. 2013-0101109 discloses a) providing a cellulose yarn having filaments of minimum twist; b) forming a multi-yarn, single feed circular knitted cellulose fabric with minimal twist; c) scouring the cellulose cloth; d) oxidizing the scoured cloth; e) pliabilizing the oxidized fabric; f) de-knitting the softened fabric to form a continuous strand having a crimp of about 2.0 crimps/cm (5 crimps/inch) to about 4.7 crimps/cm (12 crimps/inch).
- a method of manufacturing a reabsorbable hemostatic nonwoven dressing comprising the step of forming a single layer of nonwoven felt by needle-punching the carded bat and entangled in three dimensions.
- the manufacturing process is long and complicated.
- physical properties of the formed fibrous web and non-woven fabric are sensitively changed according to the characteristics of the manufacturing machine such as fibrous web and nonwoven fabric.
- the physical properties of the fabric web and non-woven fabrics which are generated not only by the order of bonding of each component, the presence of the bedding fabric in each component of the machine, the shape, length, angle, and arrangement of the fabric, but also the operating speed of each component.
- the characteristics are determined, and the development of mechanical equipment with the optimal combination of machine configurations and operating conditions for manufacturing excellent fiber webs and nonwovens, and development of hemostatic agents or fiber webs and nonwovens with excellent anti-adhesion effect produced using the above facilities It is a necessary situation.
- Another object of the present invention is to provide a method of manufacturing a fibrous web, fibril-like fiber aggregate or nonwoven fabric using the above apparatus.
- Another object of the present invention is to provide a fibrous web, a fibril-like fiber aggregate, or a nonwoven fabric that is manufactured by the above method and can be used as a hemostatic agent or an anti-adhesion agent.
- an apparatus for producing a fibrous web, fibril-like fiber aggregate or non-woven fabric from a woven fabric comprising: a feed roller; A cylinder having a flat bar on its surface; Doffer; And a stripper, wherein a tooth is formed on the surface of each of the feed roller, flat bar, cylinder, doffer, and stripper, and the woven fabric passes through the feed roller and is supplied to the cylinder.
- an apparatus After passing between the flat bar and the cylinder, there is provided an apparatus operative to sequentially pass through the doper and stripper.
- a method of manufacturing a fibrous web comprising the step of passing a woven fabric through the apparatus of the present invention to form a fibrous web.
- the step of processing the woven fabric into a fibrous web by passing it through the apparatus of the present invention; And calendering a plurality of the fibrous webs; including, a method for producing a fibril-like fiber aggregate is provided.
- the step of processing the woven fabric into a fibrous web by passing it through the apparatus of the present invention; Combining a plurality of the fibrous webs in a non-woven manner; And calendering the combined plurality of fibrous webs; including, a method of manufacturing a nonwoven fabric is provided.
- a fibrous web manufactured by the method for manufacturing a fibrous web of the present invention and having a density of 10g/m 2 to 60g/m 2 .
- a fibril-like fiber assembly having a density of 100 g/m 2 to 600 g/m 2 is provided, which is manufactured by the method for producing a fibril-like fiber assembly of the present invention.
- a nonwoven fabric having a density of 50g/m 2 to 600g/m 2 is provided which is manufactured by the method of manufacturing the nonwoven fabric of the present invention.
- a hemostatic agent or an anti-adhesion agent comprising the fibrous web of the present invention.
- a hemostatic agent or an anti-adhesion agent comprising the fibril-like fiber aggregate of the present invention.
- a hemostatic agent or an anti-adhesion agent comprising the nonwoven fabric of the present invention.
- a fibrous web, fibril-like fiber aggregate or non-woven fabric can be produced from a woven fabric in a simple process, and the fibrous web, fibril-like fiber aggregate or non-woven fabric thus produced is particularly suitable as a hemostatic agent or anti-adhesion agent. Can be used.
- FIG. 1 is a diagram schematically showing a specific example of an apparatus for manufacturing a fibrous web, fibril-like fiber aggregate or nonwoven fabric of the present invention (tooth formed on the surface of a feed roller, a flat bar, a cylinder, a doffer, and a stripper is not Shown).
- the term “fabric” is a concept including a knit.
- the tensile strength of the fabric may be, for example, 4kgf to 20kgf (more specifically 5kgf to 18kgf, even more specifically 6kgf to 15kgf). If the tensile strength of the fabric is lower than the above level, it may not be properly cut and may take on a powdery shape, and if it is higher than that, the cutting may not occur completely, resulting in an unaligned part of the product.
- the density of the fabric usable in the present invention is, for example, 30 g/m 2 to 150 g/m 2 (more specifically 40 g/m 2 to 120 g/m 2 , more specifically 50 g/m It may be 2 to 100g/m 2 ). If the density of the fabric is higher than the above level, the amount of fibers in the device may be too large and processing into the fibrous web may not be smooth, whereas if the density of the fabric is lower than that, the amount of fibers in the device may be too small and the resulting fibrous web may be torn or weaken, and the yield Can be reduced.
- the fabric may be Oxidized Regenerated Cellulose (ORC), Oxidized Cellulose (OC), or a combination thereof.
- ORC Oxidized Regenerated Cellulose
- OC Oxidized Cellulose
- oxidized (regenerated) cellulose means oxidized (regenerated) cellulose having a carboxy group (-COOH).
- carboxyl groups ie, degree of oxidation
- the content of carboxyl groups (ie, degree of oxidation) in the oxidized (regenerated) cellulose may be 13% to 24% by weight.
- oxidized (regenerated) cellulose having an oxidation degree of 13% by weight to 17% by weight may be used to reinforce the anti-adhesion effect of the prepared fibrous web, fibril-like fiber aggregate or nonwoven fabric.
- the oxidation degree is greater than 17% by weight to 24% by weight (for example, 18% to 24% by weight). %) phosphorylated (regenerated) cellulose can be used.
- the oxidized (regenerated) cellulose can be prepared according to a method known in the art, and for example, it can be prepared according to a method disclosed in U.S. Patent No. 7,279,177, U.S. Patent No. 7,645,874, etc. It is not.
- the apparatus for producing a fibrous web, fibril-like fiber aggregate or non-woven fabric of the present invention performs an operation of carding a woven fabric.
- carding or “carding process” is combing (also referred to as “brushing") while cutting fibers constituting the woven fabric to form a fiber web. It has a meaning that encompasses the process of doing.
- the apparatus of the present invention for performing such a carding operation includes: a feed roller; A cylinder having a flat bar on its surface; Doffer; And a stripper (stripper); Including, the feed roller, flat bar, cylinder, doffer, and each surface of the stripper has a tooth formed, and the woven fabric is supplied to the cylinder through the feed roller , After passing between the flat bar and the cylinder, it is operated to sequentially pass through the doper and stripper.
- the feed roller serves to supply the woven fabric to the cylinder.
- the device of the present invention may include one or more (eg, 1 to 3) such feed rollers.
- the fabric supplied to the cylinder through the feed roller is cut and combed while passing between the flat bar provided on the cylinder and the cylinder surface. Specifically, the fabric is inserted between the cylinder covered with the metallic wire on which the bedding is formed and the bedding of the flat bar provided on the cylinder, and is cut and held between two types of bedding of different characteristics to change to the form of short fibers. It is combed.
- the device of the present invention may include one or more (eg, 1 to 2) cylinders equipped with such flat bars.
- one or more flat bars eg, 2 to 10, or 3 to 8) per cylinder may be provided.
- the doffer serves to form a fibrous web by peeling off the gripped fabric distributed on the cylinder surface and finally combing.
- the device of the present invention may include one or more (eg, 1 to 2) such dopers.
- the stripper serves to move the fiber web formed through the doper from one roller to another.
- the device of the present invention may include one or more (eg, 1 to 3) such strippers.
- the device of the invention further comprises one or more additional components, such as a take-in roller and/or additional rollers for movement of the resulting fibrous web.
- additional components such as a take-in roller and/or additional rollers for movement of the resulting fibrous web.
- Can include.
- a tooth is formed on the surface of each of the feed roller, flat bar, cylinder, doffer and stripper.
- the chimcloth enters into the woven fabric to unwrap the fabric, and serves to mix the fibers forming the woven fabric, and the height, angle, thickness, number, etc. are for each facility within the range that can achieve the object of the invention. Can be appropriately selected.
- the bedding formed on the surface of the feed roller a height of 2.0 to 6.0 mm (more specifically, 3.0 to 5.0 mm, or 3.2 to 5.0 mm), an angle of 50 to 85 ° (more specifically, 55 to 80 ° , 60 to 85° or 65 to 80°), thickness 0.5 to 2.5 mm (more specifically 1.0 to 2.0 mm, or 1.0 to 1.8 mm), number of 3 to 20 / inch (more specifically 4 to 18 /inch, or 5 to 15 pieces/inch) may be satisfied, and it is preferable to satisfy all of them.
- the bedding fabric formed on the cylinder surface is 2.0-6.0mm in height (more specifically 3.0-5.0mm, or 2.0-4.0mm), angle 50-85° (more specifically 55-80°, 60 to 85°, or 65 to 80°), thickness 0.5 to 2.5 mm (more specifically 0.5 to 1.5 mm, or 0.5 to 1.2 mm), 3 to 20 pieces/inch (more specifically 4 to 18 pieces /inch, or 6 to 12 pieces/inch) may be satisfied, and it is preferable to satisfy all of them.
- the bedding fabric formed on the flat bar surface is 0.5 to 5.0 mm in height (more specifically 0.5 to 4.5 mm, or 0.5 to 4.0 mm), angle 50 to 90 ° (more specifically 60 to 90 ° , Or 70 to 90°), thickness 0.5 to 2.5 mm (more specifically 0.5 to 1.5 mm, or 0.8 to 1.2 mm), number of 3 to 20 / inch (more specifically 4 to 15 / inch, or 4 to 10 pieces/inch) may be satisfied, and it is preferable to satisfy all of them.
- the bedding fabric formed on the surface of the doper is 2.0 to 6.0 mm in height (more specifically 2.5 to 5.5 mm, or 3.0 to 5.0 mm), an angle of 30 to 80° (more specifically, 35 to 70°, Or 40 to 65°), thickness 0.5 to 2.5 mm (more specifically 0.5 to 1.5 mm, or 0.6 to 1.2 mm), 3 to 20 pieces/inch (more specifically 5 to 18 pieces/inch, or 8 It may be to satisfy one or more of the conditions of ⁇ 14 / inch), it is preferable to satisfy all.
- the bedding fabric formed on the surface of the stripper is 2.0-6.0mm in height (more specifically 2.5-5.5mm, or 3.0-5.0mm), angle 30-80° (more specifically 35-70°, Or 35 to 55°), thickness 0.5 to 2.5 mm (more specifically 0.5 to 1.5 mm, or 0.8 to 1.5 mm), 3 to 20 pieces/inch (more specifically 5 to 18 pieces/inch, or 8 It may be to satisfy one or more of the conditions of ⁇ 14 / inch), it is preferable to satisfy all.
- the interaction of the feeder roller speed, cylinder speed and doffer speed affects the physical properties of the fibrous web being produced.
- the fabric is conveyed to the cylinder through the feeder roller, and the fabric that has passed through the cylinder and the flat bar is gripped and transformed into a form of short fibers, combed, and reaches the action area of the doffer. Since the speed of the doffer surface with respect to the cylinder surface is relatively low (usually less than 1/30), all the fabrics that have passed through the cylinder and the flat bar are gripped and converted into short fibers to form a fiber web between the cylinder and the doffer. To be finally combed.
- the fabric that has not been gripped returns to the cylinder, and the fabric in the doffer is combed and easily separated into a web. That is, a thin layer in the cylinder becomes a thick layer in the doffer, and it can be condensed to produce a thick fiber web.
- the gripping and combing actions by the immersion of the cylinder and the flat bar are better, and carding occurs more effectively, while the doping action efficiency is low.
- the fibrous layer collected in the doffer can be made thin or thick. This increases or decreases the amount of time to receive the combing action of the cylinder for the fabric gripped by the doffer. If the doping speed is too high, the coaming time is short and the quality of the web is deteriorated. Conversely, if the doping speed is too slow, the doping efficiency is lowered.
- the feed roller speed in the manufacture of the fiber web using the apparatus of the present invention, may be 0.1 to 1 mpm (meter per minute), more specifically 0.2 to 0.8 mpm, more specifically It may be 0.3 to 0.7 mpm.
- the cylinder speed may be 100 to 350 rpm (revolution per minute), more specifically 150 to 300 rpm, and more specifically May be 170 ⁇ 230 rpm.
- the doffer speed may be 2 to 4 mpm (meter per minute), more specifically 2.5 to 4 mpm, more specifically May be 2.8 ⁇ 3.8 mpm.
- two or more of the feeder roller speed, cylinder speed and doffer speed, more preferably all of them, may each fall within the aforementioned range. .
- the method of manufacturing a fibrous web according to the present invention includes the step of passing the woven fabric through the apparatus of the present invention and processing it into a fibrous web. That is, in the method of manufacturing a fibrous web of the present invention, the woven fabric is cut and combed in the device to be processed (ie, carded) into a fibrous web.
- the method of manufacturing a fibrous web of the present invention may further include layering the fibrous web that has been subjected to the processing step into a batt.
- a plurality of fibrous webs e.g., 5 to 15, 5 to 14, 5 to 13, 5 to 12, or 5 to 11
- batt fibrous web batt
- the density of the fibrous web produced according to the method of the present invention is preferably 10 g/m 2 to 60 g/m 2 , more preferably 15 g/m 2 to 30 g/m 2 . If the density of the fibrous web is lower than the above level, there may be a problem in that the binding on the web is weak and a certain shape cannot be maintained. On the contrary, if it is higher than that, there may be a problem that the web may be separated when the web is stacked because it is too bulky.
- the method of manufacturing a fibril-like fiber assembly according to the present invention includes a step of calendering a plurality of fiber webs manufactured as described above.
- the density of the fibril-like fiber aggregate manufactured according to the method of the present invention is preferably 100 g/m 2 to 600 g/m 2 , more preferably 150 g/m 2 to 300 g/m 2 to be. If the density of the fibril-like fiber aggregate is lower than the above level, the hemostatic effect may not be sufficient, and if it is higher than that, the binding force decreases and the web may be separated during use.
- the method of manufacturing a nonwoven fabric according to the present invention includes the steps of combining a plurality of fiber webs produced as described above in a non-woven manner; And calendering the combined plurality of fibrous webs.
- a method of bonding the fibrous web in a non-woven manner methods known in the art, for example, needle punching method, thermal bonding method, melt blow method, spunlace method, stitch bond method, etc. may be used. It is not limited to these.
- a plurality of fibrous webs are joined by needle punching, wherein, when a plurality of fibrous webs (or fibrous web bats) are fed to the needle punching process and passed through the needle punching machine, the barb- A bed of barbed needles penetrates it, and the barb-formed needle entangles the fibers in three dimensions and increases the structural density.
- the plurality of fibrous webs thus bonded in a non-woven manner are then subjected to a calendering step.
- a calendering step There is no particular limitation on the facilities and operating conditions of the calendering step, and an appropriate one may be selected from among known facilities and operating conditions within a range capable of achieving the object of the invention.
- the density of the nonwoven fabric manufactured according to the method of the present invention is preferably 50 g/m 2 to 600 g/m 2 , more preferably 80 g/m 2 to 300 g/m 2 . If the density of the nonwoven fabric is lower than the above level, the hemostatic effect may not be sufficient, and if it is higher than that, the binding force decreases, and the web may be separated during use.
- the fibrous web, fibril-like fiber aggregate and/or nonwoven fabric prepared according to the present invention may be suitably used as a hemostatic agent or an anti-adhesion agent, and in particular, may be suitably used as a hemostatic agent.
- a hemostatic agent or an anti-adhesion agent comprising a fibrous web, fibril-like fiber aggregate or nonwoven fabric according to the present invention.
- the woven Regenerated Cellulose having a tensile strength of 10 kgf was oxidized using nitrogen dioxide (oxidation degree: 19%) and then dried. Thereafter, woven oxidized regenerated cellulose (ORC) was added to the apparatus of the present invention and processed to produce a sheet-shaped fibrous web.
- ORC woven oxidized regenerated cellulose
- Table 1 the feeder roller speed, cylinder speed, and doffer speed conditions were shown in Table 1 below, and the immersion in the apparatus satisfied the specifications of Table 2 below.
- the prepared single-ply fiber web density was measured to be about 15 g/m 2 .
- a fibril-like fiber aggregate was formed from the prepared fiber web through a calendering process under the conditions shown in Table 3 below.
- the woven oxidized regenerated cellulose (ORC) obtained in Example 1 was introduced into the apparatus used in Example 1 and processed to produce a fibrous web in the form of a sheet.
- the feeder roller speed, cylinder speed, and doffer speed conditions are shown in Table 4 below.
- the prepared plurality of fibrous webs were bonded through needle punching. Needle punching conditions were shown in Table 5 below.
- a nonwoven fabric was formed through a calendering process under the conditions shown in Table 3 above. The density of the prepared nonwoven fabric was measured to be about 85 g/m 2 .
- the fibril-like fiber aggregate according to the present invention exhibits an excellent hemostatic effect.
- Example 7 In order to evaluate the hemostatic effect of the nonwoven fabric prepared in Example 2, a model small animal test in which the kidneys of rats were excised was performed. As a result, the mean blood loss value lost until hemostasis is shown in Table 7 below. In Table 7, the case where part of the kidney of the rat was excised and left to hemostasis naturally was Control, and Sample 2 was the case where hemostasis was performed by attaching a nonwoven fabric after resection.
- the nonwoven fabric according to the present invention exhibits excellent hemostatic effect.
- the woven Regenerated Cellulose having a tensile strength of 4 kgf was oxidized using nitrogen dioxide (oxidation degree: 19%) and then dried. Thereafter, woven oxidative regenerated cellulose (ORC) was put into the apparatus used in Example 1 and processed to produce a sheet-shaped fibrous web. During processing, the feeder roller speed, cylinder speed, and doffer speed conditions are shown in Table 1 above. Subsequently, a fibril-like fiber aggregate was formed from the prepared fiber web through a calendering process under the conditions shown in Table 3 above.
- Example 1 manufactured with a fabric having a 10kgf
- the hemostatic effect of the fibril-like fiber assembly was obtained from Comparative Example 1 prepared with a fabric having a tensile strength of 4 kgf It can be seen that it was remarkably superior to the fibril-like fiber aggregate.
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- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Surgery (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
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- Nonwoven Fabrics (AREA)
- Preliminary Treatment Of Fibers (AREA)
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Abstract
Description
Claims (12)
- 직조된 직물로부터 섬유 웹, 피브릴상 섬유 집합체 또는 부직포를 제조하기 위한 장치로서,피드 롤러(feed roller); 플랫 바(flat bar)가 표면 위에 구비된 실린더(cylinder); 도퍼(doffer); 및 스트리퍼(stripper);를 포함하고, 상기 피드롤러, 플랫 바, 실린더, 도퍼 및 스트리퍼 각각의 표면에 침포(tooth)가 형성되어 있으며, 직조된 직물이 상기 피드 롤러를 통과하여 상기 실린더로 공급되고, 상기 플랫 바와 실린더 사이를 통과한 후, 상기 도퍼 및 스트리퍼를 순차적으로 거치도록 작동되는, 장치.
- 제1항에 있어서,피드 롤러 표면에 형성된 침포가 높이 2.0~6.0mm, 각도 50~85°, 두께 0.5~2.5mm, 개수 3~20개/inch의 조건들 중 하나 이상을 만족시키고,실린더 표면에 형성된 침포가 높이 2.0~6.0mm, 각도 50~85°, 두께 0.5~2.5mm, 개수 3~20개/inch의 조건들 중 하나 이상을 만족시키며,플랫 바 표면에 형성된 침포가 높이 0.5~5.0mm, 각도 50~90°, 두께 0.5~2.5mm, 개수 3~20개/inch의 조건들 중 하나 이상을 만족시키고,도퍼 표면에 형성된 침포가 높이 2.0~6.0mm, 각도 30~80°, 두께 0.5~2.5mm, 개수 3~20개/inch의 조건들 중 하나 이상을 만족시키며,스트리퍼 표면에 형성된 침포가 높이 2.0~6.0mm, 각도 30~80°, 두께 0.5~2.5mm, 개수 3~20개/inch의 조건들 중 하나 이상을 만족시키는,장치.
- 제1항에 있어서,피드 롤러가 0.1~1 mpm(meter per minute)의 속도로 작동되고,실린더가 100~350 rpm(revolution per minute)의 속도로 작동되며,도퍼가 2~4 mpm(meter per minute)의 속도로 작동되는,장치.
- 직조된 직물을 제1항 내지 제3항 중 어느 한 항의 장치에 통과시켜 섬유 웹으로 가공하는 단계를 포함하는, 섬유 웹의 제조 방법.
- 직조된 직물을 제1항 내지 제3항 중 어느 한 항의 장치에 통과시켜 섬유 웹으로 가공하는 단계; 및 복수의 상기 섬유 웹을 캘린더링하는 단계;를 포함하는, 피브릴상 섬유 집합체의 제조 방법.
- 직조된 직물을 제1항 내지 제3항 중 어느 한 항의 장치에 통과시켜 섬유 웹으로 가공하는 단계; 복수의 상기 섬유 웹을 비직조 방식으로 결합하는 단계; 및 상기 결합된 복수의 섬유 웹을 캘린더링하는 단계;를 포함하는, 부직포의 제조 방법.
- 제4항의 방법에 의하여 제조되며, 밀도가 10g/m2 내지 60g/m2인 섬유 웹.
- 제5항의 방법에 의하여 제조되며, 밀도가 100g/m2 내지 600g/m2인 피브릴상 섬유 집합체.
- 제6항의 방법에 의하여 제조되며, 밀도가 50g/m2 내지 600g/m2인 부직포.
- 제7항의 섬유 웹을 포함하는 지혈제 또는 유착방지제.
- 제8항의 피브릴상 섬유 집합체를 포함하는 지혈제 또는 유착방지제.
- 제9항의 부직포를 포함하는 지혈제 또는 유착방지제.
Priority Applications (4)
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CA3139273A CA3139273A1 (en) | 2019-05-24 | 2019-06-12 | Apparatus and method for manufacturing fibrous web, fibrilla fiber aggregate, or nonwoven fabric, and fibrous web, fibrilla fiber aggregate, or nonwoven fabric manufactured thereby |
EP19930309.0A EP3978670A4 (en) | 2019-05-24 | 2019-06-12 | Apparatus and method for manufacturing fibrous web, fibrilla fiber aggregate, or nonwoven fabric, and fibrous web, fibrilla fiber aggregate, or nonwoven fabric manufactured thereby |
JP2021569904A JP7431860B2 (ja) | 2019-05-24 | 2019-06-12 | 繊維ウェブ、フィブリル状繊維集合体または不織布を製造するための装置および方法、並びにそれによって製造された繊維ウェブ、フィブリル状繊維集合体または不織布 |
US17/613,560 US20220243373A1 (en) | 2019-05-24 | 2019-06-12 | Apparatus and method for manufacturing fibrous web, fibrilla fiber aggregate, or nonwoven fabric, and fibrous web, fibrilla fiber aggregate, or nonwoven fabric manufactured thereby |
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KR1020190061369A KR20200135018A (ko) | 2019-05-24 | 2019-05-24 | 섬유 웹, 피브릴상 섬유 집합체 또는 부직포를 제조하기 위한 장치 및 방법, 및 그에 의하여 제조된 섬유 웹, 피브릴상 섬유 집합체 또는 부직포 |
KR10-2019-0061369 | 2019-05-24 |
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US (1) | US20220243373A1 (ko) |
EP (1) | EP3978670A4 (ko) |
JP (1) | JP7431860B2 (ko) |
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CN (2) | CN112064204A (ko) |
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KR20200135018A (ko) * | 2019-05-24 | 2020-12-02 | 주식회사 삼양바이오팜 | 섬유 웹, 피브릴상 섬유 집합체 또는 부직포를 제조하기 위한 장치 및 방법, 및 그에 의하여 제조된 섬유 웹, 피브릴상 섬유 집합체 또는 부직포 |
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- 2019-05-24 KR KR1020190061369A patent/KR20200135018A/ko active Application Filing
- 2019-06-12 JP JP2021569904A patent/JP7431860B2/ja active Active
- 2019-06-12 EP EP19930309.0A patent/EP3978670A4/en active Pending
- 2019-06-12 US US17/613,560 patent/US20220243373A1/en active Pending
- 2019-06-12 WO PCT/KR2019/007068 patent/WO2020241960A1/ko unknown
- 2019-06-12 CA CA3139273A patent/CA3139273A1/en active Pending
- 2019-06-25 CN CN201910557205.2A patent/CN112064204A/zh active Pending
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JP2022538740A (ja) | 2022-09-06 |
CA3139273A1 (en) | 2020-12-03 |
JP7431860B2 (ja) | 2024-02-15 |
KR20200135018A (ko) | 2020-12-02 |
EP3978670A4 (en) | 2023-06-28 |
US20220243373A1 (en) | 2022-08-04 |
CN210561077U (zh) | 2020-05-19 |
EP3978670A1 (en) | 2022-04-06 |
CN112064204A (zh) | 2020-12-11 |
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