WO2014092328A1 - 카복시메틸 셀룰로오스 습식 부직포의 제조방법 및 그로부터 제조된 카복시메틸 셀룰로오스 습식 부직포의 용도 - Google Patents
카복시메틸 셀룰로오스 습식 부직포의 제조방법 및 그로부터 제조된 카복시메틸 셀룰로오스 습식 부직포의 용도 Download PDFInfo
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- WO2014092328A1 WO2014092328A1 PCT/KR2013/009471 KR2013009471W WO2014092328A1 WO 2014092328 A1 WO2014092328 A1 WO 2014092328A1 KR 2013009471 W KR2013009471 W KR 2013009471W WO 2014092328 A1 WO2014092328 A1 WO 2014092328A1
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- carboxymethyl cellulose
- nonwoven fabric
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/002—Tissue paper; Absorbent paper
- D21H27/004—Tissue paper; Absorbent paper characterised by specific parameters
- D21H27/005—Tissue paper; Absorbent paper characterised by specific parameters relating to physical or mechanical properties, e.g. tensile strength, stretch, softness
- D21H27/007—Tissue paper; Absorbent paper characterised by specific parameters relating to physical or mechanical properties, e.g. tensile strength, stretch, softness relating to absorbency, e.g. amount or rate of water absorption, optionally in combination with other parameters relating to physical or mechanical properties
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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
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H5/00—Special paper or cardboard not otherwise provided for
- D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
- D21H5/14—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of cellulose fibres only
- D21H5/141—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of cellulose fibres only of fibrous cellulose derivatives
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
-
- 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
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/28—Polysaccharides or their derivatives
-
- 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
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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
- D04H1/72—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
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
- D21H11/20—Chemically or biochemically modified fibres
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/02—Synthetic cellulose fibres
- D21H13/04—Cellulose ethers
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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
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/80—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a special chemical form
Definitions
- the present invention relates to a method for producing a carboxymethyl cellulose nonwoven fabric and to the use of a carboxymethyl cellulose nonwoven fabric prepared therefrom, and more particularly, to a method for producing a wet nonwoven fabric by papermaking after carboxymethylation of cellulose fibers.
- the uniformity is better than the conventional carboxymethylated nonwoven fabric using cellulose fiber, and mass production is possible due to the convenience of the process and the ease of performing the process, and the carboxymethyl cellulose nonwoven fabric produced by the above manufacturing method is A method of making carboxymethyl cellulose wet nonwovens and the use of carboxymethyl cellulose wet nonwovens prepared therefrom, useful as a use of medical nonwovens or mask packs due to gelation upon contact with body fluids or water.
- Nonwoven fabric is a planar fiber made by tangling a variety of fibers such as natural fibers, chemical fibers, glass fibers, and metal fibers to form entangled webs, and combining them by mechanical or physical methods. Can be defined as a structure.
- nonwoven fabrics are widely consumed in our industry and living surroundings, and the use, characteristics, and functions of nonwoven fabrics are becoming known to real users, and various uses using nonwoven fabrics are being created.
- cellulose is the most abundant biological resource on earth, and it is an infinite resource that repeats the cycle of generation, decomposition, use, and production by natural law, and has been provided as a functional, low-cost renewable material to civilization for thousands of years.
- Such cellulose has been actively developed in order to utilize the cellulose component of plants as a resource of energy, food, etc.
- cellulose is used in various functional polymer materials and industrial fields. There is an active research to replace the polymer resources.
- the third hydroxyl group of the cellulose molecule can react with both monovalent and divalent alcohol groups to undergo chemical reactions such as esterification, nitriding, etherification, and oxidation, and as a biocompatible substance, various biochemical materials can be used for various biomedical applications. Can be converted to a range.
- oxidized cellulose knitted fabric products using oxidized cellulose (Oxydized cellulose) are commercially available as anti-adhesion agents because of their good adhesion to organs and tissues that are highly curved.
- oxidized cellulose oxidized cellulose
- CMC carboxymethyl cellulose
- a method of manufacturing a nanofiber nonwoven fabric using electrospinning has been attempted, but as a representative method of directly electrospinning cellulose, a method of spinning using NMMO (4-methylmorpholine N-oxide) It is known, but the method is difficult to make nano-sized fibers, even if the nano-sized NMMO solution characteristics that are solidified at 80 °C or less has a disadvantage that the non-woven fabric is difficult to stack.
- NMMO 4-methylmorpholine N-oxide
- Korean Patent Laid-Open Publication No. 2008-0075627 discloses a method for producing cellulose nanofibers by electrospinning cellulose acetate and deacetylating it with a mixed solution of potassium hydroxide and ethanol.
- the patent did not mention the nonwoven fabric utilized as a hemostatic agent, an anti-adhesion agent, etc. which has excellent biodegradability as cellulose oxide.
- a method for producing a cellulose nonwoven fabric a method of producing a wet nonwoven fabric by a papermaking method and then obtaining it by carboxymethylation is used.
- FIG. 1 shows a manufacturing process of a wet nonwoven fabric using a paper making process, wherein a process (2) of dispersing pulped fibers obtained through the grinding process (1) with a water-based solvent as needed. After repeating, water is removed on the papermaking wire or screen 31 and attached in the form of a sheet using a vacuum pump 32 (3), which is manufactured in a sheet form by a pressing roll (4).
- the sheet obtained by the step (5) of winding the wet nonwoven fabric produced from the process is formed by dispersing fibers of extremely short lengths, for example, 1 to 10 mm in water, to ensure uniform dispersion of the fibers. Has excellent uniformity.
- the wet nonwoven fabric thus obtained is carboxymethylated, oxidation efficiency is low and process complexity is involved.
- the present inventors have made an effort to apply the wet nonwoven fabric produced by the papermaking method to medical use, and after performing carboxymethylation of the cellulose fibers, devised a method of manufacturing a wet nonwoven fabric by the papermaking method, and the manufacturing method
- the carboxymethyl cellulose nonwoven fabric prepared from the present invention is excellent in uniformity, and the present invention has been completed by providing convenience of process and ease of process of using the conventionally manufactured cellulose fiber as it is.
- Another object of the present invention is to provide a medical nonwoven fabric using the carboxymethyl cellulose wet nonwoven fabric prepared from the manufacturing method.
- Still another object of the present invention is to provide a mask pack using the carboxymethyl cellulose nonwoven fabric prepared from the above method.
- the present invention is a carboxymethyl cellulose consisting of preparing a carboxymethyl cellulose fiber by the solvent treatment, and dissolving the carboxymethyl cellulose fiber in an aqueous solution composed of an alcohol solvent to knead and remove the solvent It provides a method for producing a wet nonwoven fabric.
- the pressing process by calendering may be further performed.
- the cellulose fiber uses any one fiber selected from the group consisting of viscose rayon fiber, cotton fiber, lyocell fiber.
- the length of the carboxymethyl-treated cellulose fiber obtained by the manufacturing method of this invention is 0.1-10 mm.
- the alcohol solvent used in the production method of the present invention is to use alone or mixed forms thereof selected from the group consisting of ethanol, methanol and propanol.
- the present invention provides a medical nonwoven fabric use useful as a hygroscopic material due to the property that the carboxymethyl cellulose nonwoven fabric prepared from the manufacturing method is gelled upon contact with body fluids.
- the use of the carboxymethyl cellulose nonwoven fabric may be applied to any one selected from the group consisting of anti-adhesion agents, wound dressings and hemostatic materials.
- the medical nonwoven fabric of the present invention may be colored with the biocompatible dye or pigment on the carboxymethyl cellulose nonwoven fabric to improve the ease of use or visibility of the procedure, and further adhere the antimicrobial material to the carboxymethyl cellulose nonwoven fabric.
- the present invention provides a mask pack using a carboxymethyl cellulose nonwoven fabric having excellent homogeneity prepared from the manufacturing method.
- the present invention provides a method for producing a wet nonwoven fabric by carboxymethylation after carboxymethylation of cellulose fibers, and thus has a better leveling agent than a carboxymethylated nonwoven fabric using conventional cellulose fibers, and retains conventionally produced cellulose fibers as they are. Mass production is possible due to the convenience of process and ease of process.
- the carboxymethyl cellulose nonwoven fabric produced by the production method of the present invention is useful as a medical nonwoven fabric or mask pack using the same because gelation occurs upon contact with body fluids or water.
- FIG. 1 illustrates a manufacturing process diagram of a wet nonwoven fabric using a conventional papermaking method
- Example 2 is a cross-sectional photograph of a carboxymethyl cellulose nonwoven fabric using viscose rayon fibers according to Example 1 of the present invention
- FIG. 3 is a surface photograph of a carboxymethyl cellulose nonwoven fabric using the viscose rayon fibers of FIG. 2,
- Example 4 is a surface photograph of a carboxymethyl cellulose nonwoven fabric using viscose rayon fibers after calendering in Example 1 of the present invention
- Example 5 is an optical photograph of a carboxymethyl cellulose nonwoven fabric using cotton fibers according to Example 2 of the present invention
- FIG. 6 is an optical photograph when the carboxymethyl cellulose nonwoven fabric using the cotton fiber of FIG. 5 is in contact with water;
- FIG. 7 is an optical photograph of a carboxymethyl cellulose nonwoven fabric using a cotton fiber nonwoven fabric according to Comparative Example 1 of the present invention in contact with water.
- the present invention provides a method for producing a carboxymethyl cellulose nonwoven fabric in which a carboxymethylated cellulose fiber is used to produce a wet nonwoven fabric by a papermaking method.
- the present invention provides a method for producing a carboxymethyl cellulose nonwoven fabric comprising dissolving and kneading the carboxymethyl cellulose fibers in an aqueous solution composed of an alcohol solvent and removing the solvent.
- Conventional cellulose nonwoven fabrics are prepared by wet paper nonwoven fabric by the paper making process of Figure 1, and then subjected to oxidation treatment in a subsequent process to obtain the final product of the cellulose wet nonwoven fabric.
- Carboxymethylation of the thus obtained wet nonwoven fabric entails the difficulty of maintaining the form of the nonwoven fabric, and the space between the nonwoven fabrics is small, so that solvent penetration is not easy, the oxidation treatment efficiency is low, and the uniformity is easy to fall.
- the carboxymethyl cellulose fiber is liable to be brittle, the process is difficult, the production speed is low, and it is difficult to produce a thin nonwoven fabric.
- the method for preparing the carboxymethyl cellulose nonwoven fabric according to the present invention disperses the cellulose fibers in a solvent to form carboxymethylated carboxymethylation uniformly and excellent oxidation treatment efficiency.
- Conventional wet nonwoven fabrics use water as a countertop solvent, but gelation occurs when carboxymethyl cellulose fibers contact water, making it difficult to manufacture with conventional papermaking methods. Therefore, the carboxymethyl cellulose nonwoven fabric of the present invention is manufactured by using an alcohol as a co-solvent, which is excellent in uniformity and can be mass-produced with improved process efficiency.
- the cellulose fiber to be carboxymethylated may be any one selected from the group consisting of viscose rayon fiber, cotton fiber and lyocell fiber.
- a method of manufacturing a carboxymethyl cellulose nonwoven fabric using viscose rayon fiber or cotton fiber is described in detail, but the cellulose fiber is not limited thereto.
- Carboxymethylation of step 1) is a process for producing carboxymethyl cellulose having a degree of substitution of 0.3 or more by reacting monochloroacetic acid after alkali treatment of cellulose fibers.
- Step 2) of the manufacturing method of the present invention is a step of manufacturing a wet nonwoven fabric by the papermaking method, consisting of kneading the carboxymethyl cellulose fibers in an aqueous solution composed of an alcohol solvent, kneading and removing the solvent to dry.
- step 2) of the present invention the aqueous solution is characterized in that the carboxymethyl cellulose is in contact with water so that the gelling occurs using an alcohol solvent.
- ethanol is used as the crude solution, but is not limited thereto. More preferably, ethanol is used alone or in a mixed form thereof selected from the group consisting of ethanol, methanol, and propanol.
- the length of the carboxymethyl treated cellulose fibers produced in the production method of the present invention is 0.1 to 10 mm. At this time, when the fiber length is less than 0.1mm, the bonding strength between the fibers is lowered, the morphological stability of the nonwoven fabric is lowered, whereas, if the fiber length exceeds 10mm, it is difficult to evenly disperse the fibers in the co-solvent during the manufacture of the wet nonwoven fabric.
- the first preferred embodiment of the present invention prepared from the above method for preparing carboxymethyl cellulose nonwoven fabric includes carboxymethyl cellulose nonwoven fabric using viscose rayon fibers prepared in Example 1; And carboxymethyl cellulose wet nonwoven fabric using the cotton fiber prepared in Example 2 as a second embodiment.
- FIG. 2 and 3 show a cross-sectional and surface photograph of a carboxymethyl cellulose nonwoven fabric using viscose rayon fibers prepared in Example 1.
- FIG. 1 the carboxymethyl cellulose nonwoven fabric using viscose rayon fibers is a porous thin film nonwoven fabric having micropores, and it can be confirmed that the carboxymethyl cellulose fibers are uniformly distributed.
- the manufacturing method of the present invention may further perform a pressing process by a calendering method after removing the solvent of step 2).
- Example 4 is a photograph of the surface of the carboxymethyl cellulose nonwoven fabric using viscose rayon fibers after calendering in Example 1 of the present invention, and compared to the average pore size of the nonwoven fabric before the calendering process (FIG. 3). It can be seen that the average pore size of the nonwoven fabric decreased after the calendering process.
- the average pore size of the carboxymethyl cellulose nonwoven fabric can be adjusted by the manufacturing method of the present invention, and when the calendering process is further performed, the strength of the nonwoven fabric can be improved and the thickness can be reduced.
- the present invention provides the carboxymethyl cellulose nonwoven fabric produced from the above-described manufacturing method to ensure the strength of the nonwoven fabric, the carboxymethylation is uniformly performed, and the uniformity is excellent. Furthermore, when the carboxymethyl cellulose wet nonwoven fabric is in contact with the body fluid, Due to its gelling property, it is useful as a medical nonwoven fabric as a hygroscopic material.
- carboxymethyl cellulose nonwoven fabric of the present invention is useful as a medical nonwoven fabric applied to any one selected from the group consisting of anti-adhesion agents, wound dressings and hemostatic materials.
- an anti-adhesion film in the form of a knit or a film is commercially available.
- an inter-fiber gap is too large and a region that is not blocked by gelation may occur.
- such a knit anti-adhesion film can be manufactured in the form of knit only by using a filament ( ⁇ ⁇ , ⁇ ⁇ , Filament).
- the anti-adhesion film using the carboxymethyl cellulose nonwoven fabric prepared from the manufacturing method of the present invention can control the fine pore size than the conventional knit form while securing the intelligence. That is, the carboxymethyl cellulose wet nonwoven fabric used as the medical nonwoven fabric of the present invention is preferably designed to have micropores of 1 to 500 ⁇ m, and in this case, when less than 1 ⁇ m, the function of the micropores between fibers is poorly absorbed / absorbed. On the other hand, if the pore size of the micropores is slower than 500 ⁇ m, the inter-fiber voids tend to be excessively large, resulting in poor barrier properties even when gelation of the material by moisture occurs.
- the present invention can improve the visibility of the ease of use or the procedure of the medical nonwoven fabric using the same by coloring the biocompatible dye or pigment on the carboxymethyl cellulose nonwoven fabric.
- the dye or pigment may be selected from harmless substances known to the art, and after the procedure, it is preferable to use a color of blood and complementary color so as to easily determine whether the medical nonwoven fabric is attached to the organ and the attachment position. Do.
- the present invention by adding an antimicrobial material to the carboxymethyl cellulose wet nonwoven fabric, it is possible to improve the infection prevention ability of the medical nonwoven fabric using the same.
- the antimicrobial material may be selected from harmless antimicrobial substances known to the art, and examples thereof include silver, silver compounds, triclosan, biguanide compounds, and methylene blue.
- this invention provides the mask pack using the carboxymethyl cellulose nonwoven fabric manufactured from the above manufacturing method.
- FIG. 5 is an optical photograph of a carboxymethyl cellulose nonwoven fabric using cotton fibers according to Example 2 of the present invention
- FIG. 6 is an optical photograph of a carboxymethyl cellulose nonwoven fabric using cotton fibers as shown in FIG. 5 when contacted with water. It can be seen from the results of the gelling form upon contact with water.
- Figure 7 relates to a carboxymethyl cellulose nonwoven fabric using a cotton fiber nonwoven fabric prepared in Comparative Example 1, that is, a carboxymethyl cellulose nonwoven fabric obtained by first preparing a nonwoven fabric of a conventional method, and then carboxymethylated contact with water If so, a partially gelled area is observed.
- Step 1 400 g of 25% sodium hydroxide solution was added to the mixed solution prepared by mixing 1,350 ml of 2-propanol and 1,350 ml of ethanol to prepare an alkalizing solution. 30 g of viscose rayon fiber was added to the alkalizing solution, and stirred for 20 minutes to prepare an alkali treated viscose rayon fiber.
- MCA monochlorochloroacetic acid
- carboxymethyl cellulose fiber was poured into 99.5% methanol, washed with water, neutralized with acetic acid and stirred for 10 minutes. After washing with 95% ethanol for 10 minutes, it was washed sequentially with 99.5% methanol and 95% ethanol for 10 minutes each. Washed carboxymethyl cellulose (CMC) fibers were dried at 50 ° C.
- Step 2 5 mL of 95% ethanol was used to prepare an aqueous solution using 2.25 g of carboxymethyl cellulose (CMC) fiber prepared in Step 1 above as ethanol as a co-solvent, followed by sufficient kneading, followed by a hand sheet former. Ethanol, a crude solvent, was removed to prepare a 100 g / m 2 carboxymethyl cellulose nonwoven fabric. Thereafter, the prepared nonwoven fabric was dried at 50 ° C.
- CMC carboxymethyl cellulose
- Step 3 The nonwoven fabric prepared in Step 2 was calendered at 90 ° C. at a pressure of 200 psi.
- Step 1 400 g of 25% sodium hydroxide solution was added to the mixed solution prepared by mixing 1,350 ml of 2-propanol and 1,350 ml of ethanol to prepare an alkalizing solution. 30 g of cotton fiber was added to the alkalizing solution, followed by stirring for 20 minutes to prepare an alkali treated cotton fiber.
- carboxymethyl cellulose fiber was poured into 99.5% methanol, washed with water, neutralized with acetic acid and stirred for 10 minutes. After washing with 95% ethanol for 10 minutes, it was washed sequentially with 99.5% methanol and 95% ethanol for 10 minutes each. Washed carboxymethyl cellulose (CMC) fibers were dried at 50 ° C.
- Step 2 Using a 6.75 g of carboxymethyl cellulose fiber prepared in the above step in 5 L of 95% ethanol to prepare an aqueous solution using a ethanol as a co-solvent, and kneaded sufficiently, using a hand sheet former Ethanol, a crude solvent, was removed to prepare a 300 g / m 2 carboxymethyl cellulose nonwoven fabric. Thereafter, the prepared nonwoven fabric was dried at 50 ° C.
- a carboxymethyl cellulose nonwoven fabric was prepared under the carboxymethylation conditions of Example 2 after preparing a 50 g / m 2 nonwoven fabric.
- 30 g of a cotton fiber nonwoven fabric was added to the alkalizing solution, followed by stirring for 20 minutes, to prepare an alkali treated cotton fiber.
- carboxymethyl cellulose fiber was poured into 99.5% methanol, washed with water, neutralized with acetic acid and stirred for 10 minutes. After washing with 95% ethanol for 10 minutes, it was washed sequentially with 99.5% methanol and 95% ethanol for 10 minutes each. Washed carboxymethyl cellulose (CMC) fibers were dried at 50 ° C.
- the present invention provides a method for producing a carboxymethyl cellulose nonwoven fabric by papermaking after the carboxymethylation of the cellulose fibers.
- the uniformity is excellent.
- mass production is possible due to the convenience of the process and the ease of performing the process using the existing commercialized cellulose fiber as it is.
- carboxymethyl cellulose nonwoven fabric produced by the manufacturing method of the present invention gelling upon contact with body fluids or water, it provides a useful use as a medical nonwoven fabric or mask pack using the same.
Abstract
Description
Claims (10)
- 셀룰로오스 섬유를 용매처리에 의해 카복시메틸 셀룰로오스 섬유를 준비하고, 상기 카복시메틸 셀룰로오스 섬유를 알코올 용매로 이루어진 초조용액에 풀어 혼련하고 용매를 제거하는 것으로 이루어진 카복시메틸 셀룰로오스 습식 부직포의 제조방법.
- 제1항에 있어서, 상기 용매제거 후, 캘린더링법에 의한 압착공정이 더 수행되는 것을 특징으로 하는 상기 카복시메틸 셀룰로오스 습식 부직포의 제조방법.
- 제1항에 있어서, 상기 셀룰로오스 섬유가 비스코스 레이온 섬유, 면 섬유, 라이오셀 섬유로 이루어진 군에서 선택되는 어느 하나인 것을 특징으로 하는 상기 카복시메틸 셀룰로오스 습식 부직포의 제조방법.
- 제1항에 있어서, 상기 카복시메틸 셀룰로오스 섬유의 길이가 0.1∼10mm인 것을 특징으로 하는 상기 카복시메틸 셀룰로오스 습식 부직포의 제조방법.
- 제1항에 있어서, 상기 알코올 용매가 에탄올, 메탄올 및 프로판올로 이루어진 군에서 선택되는 단독 또는 그 혼합 형태를 사용하는 것을 특징으로 하는 상기 카복시메틸 셀룰로오스 습식 부직포의 제조방법.
- 제1항 내지 제5항 중 어느 한 항의 제조방법으로부터 제조된 카복시메틸 셀룰로오스 습식 부직포가 체액과 접촉시 젤화가 일어나는 흡습재료로 유용한 의료용 부직포.
- 제6항에 있어서, 상기 카복시메틸 셀룰로오스 습식 부직포가 유착방지제, 창상피복재 및 지혈재로 이루어진 군에서 선택되는 어느 하나에 적용된 것을 특징으로 하는 상기 의료용 부직포.
- 제6항에 있어서, 상기 카복시메틸 셀룰로오스 습식 부직포에 생체적합성 염료 또는 안료가 착색된 특징으로 하는 상기 의료용 부직포.
- 제6항에 있어서, 상기 카복시메틸 셀룰로오스 습식 부직포에 항균 물질이 더 부착된 것을 특징으로 하는 상기 의료용 부직포.
- 제1항 내지 제5항 중 어느 한 항의 제조방법으로부터 제조된 카복시메틸 셀룰로오스 습식 부직포를 이용한 마스크 팩.
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US14/348,733 US9481963B2 (en) | 2012-12-10 | 2013-10-23 | Manufacturing method of carboxymethyl cellulose nonwoven fabric and use of carboxymethyl cellulose nonwoven fabric manufactured thereby |
DE112013000200.0T DE112013000200B4 (de) | 2012-12-10 | 2013-10-23 | Verfahren zur Herstellung eines Carboxymethylcellulose-Vliesstoffes und Verwendung eines solchermaßen hergestellten Carboxymethylcellulose-Vliesstoffes |
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KR1020120143109A KR101361629B1 (ko) | 2012-12-10 | 2012-12-10 | 카복시메틸 셀룰로오스 습식 부직포의 제조방법 및 그로부터 제조된 카복시메틸 셀룰로오스 습식 부직포의 용도 |
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CN111575903A (zh) * | 2020-05-15 | 2020-08-25 | 长沙蓝姿生物科技有限公司 | 一种高柔韧高保湿的羧甲基纤维素纤维面膜基布及其制备方法 |
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KR101607939B1 (ko) | 2014-05-15 | 2016-04-01 | 한국생산기술연구원 | 카복시메틸셀룰로오스 파이버 또는 섬유포로 이루어진 흡수 코어 및 그를 이용한 흡수 제품 |
TW201840298A (zh) | 2017-03-03 | 2018-11-16 | 德商凱爾海姆纖維有限公司 | 黏性纖維的應用 |
KR102180370B1 (ko) * | 2017-12-14 | 2020-11-18 | 주식회사 엘지화학 | 중금속 흡착용 마스크 팩의 제조방법 및 이를 이용하여 제조된 마스크 팩 |
KR102409027B1 (ko) * | 2018-01-19 | 2022-06-14 | 주식회사 엘지화학 | 나노셀룰로오스 필름, 이를 포함하는 마스크 팩 및 이의 제조방법 |
KR102441828B1 (ko) * | 2018-01-25 | 2022-09-07 | 주식회사 엘지화학 | 나노셀룰로오스 다공성 필름, 마스크 팩 및 이의 제조방법 |
KR102414535B1 (ko) * | 2020-02-20 | 2022-06-30 | 주식회사 원바이오젠 | 전기방사 및 열압착에 의해 제조한 단층구조의 나노섬유상 유착방지막 및 그 제조방법 |
CN113430822A (zh) * | 2021-06-24 | 2021-09-24 | 长春工业大学 | 一种新型改性纤维素面膜基布的制备方法 |
CN113338034A (zh) * | 2021-06-24 | 2021-09-03 | 长春工业大学 | 一种具有优异保湿能力的改性纤维素面膜基布的制备方法 |
WO2023237407A1 (en) * | 2022-06-09 | 2023-12-14 | Glatfelter Gernsbach Gmbh | Fabric comprising a nonwoven web of fibers and corresponding method of production |
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Also Published As
Publication number | Publication date |
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US9481963B2 (en) | 2016-11-01 |
KR101361629B1 (ko) | 2014-02-13 |
US20160002859A1 (en) | 2016-01-07 |
DE112013000200T5 (de) | 2014-08-07 |
DE112013000200B4 (de) | 2020-10-29 |
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