WO2015170741A1 - 詰め綿 - Google Patents
詰め綿 Download PDFInfo
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- WO2015170741A1 WO2015170741A1 PCT/JP2015/063312 JP2015063312W WO2015170741A1 WO 2015170741 A1 WO2015170741 A1 WO 2015170741A1 JP 2015063312 W JP2015063312 W JP 2015063312W WO 2015170741 A1 WO2015170741 A1 WO 2015170741A1
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- WIPO (PCT)
- Prior art keywords
- fiber
- dtex
- stuffed cotton
- short
- cotton
- Prior art date
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Classifications
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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
- D04H1/02—Cotton wool; Wadding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B68—SADDLERY; UPHOLSTERY
- B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
- B68G1/00—Loose filling materials for upholstery
-
- 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
- D04H1/4282—Addition polymers
- D04H1/43—Acrylonitrile series
-
- 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
- D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
-
- 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
- D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/55—Polyesters
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/06—Thermally protective, e.g. insulating
- A41D31/065—Thermally protective, e.g. insulating using layered materials
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G9/00—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
- A47G9/02—Bed linen; Blankets; Counterpanes
- A47G9/0207—Blankets; Duvets
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/50—Modified hand or grip properties; Softening compositions
-
- 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
- D10B2505/00—Industrial
- D10B2505/08—Upholstery, mattresses
Definitions
- the present invention relates to stuffed cotton used for bedding such as comforters and down jackets.
- This application claims priority based on Japanese Patent Application No. 2014-096581 filed in Japan on May 8, 2014 and Japanese Patent Application No. 2014-217375 filed in Japan on October 24, 2014. The contents are incorporated here.
- feathers mainly used as stuffing cotton for bedding, down jackets, etc. are rich in texture, light in weight, excellent in heat retention and bulkiness, and have a high recovery rate after compression.
- it is necessary to raise a large amount of waterfowl which not only requires a large amount of feed, but also causes water pollution due to waterfowl excrement, or the occurrence and spread of infectious diseases. Yes.
- feathers in order to be able to use feathers as stuffed cotton, it is necessary to go through many processes, such as hair collection, selection, disinfection, and degreasing.
- the feathers soar during the process the work becomes complicated, and as a result, the price of bedding bedding using feathers as stuffed cotton increases.
- Polyester fibers can also be used as the material for the stuffed cotton.
- Polyester fibers are inexpensive, lightweight and excellent in bulk, but have a problem of low recovery after compression. Therefore, attempts have been made to impart bulkiness to synthetic fibers such as polyester fibers.
- a specific amount of a surface treatment agent mainly composed of a polyether / ester block copolymer is attached to the surface of both the matrix constituting the fiber structure and the heat-adhesive short fibers.
- a hard cotton structure having improved rigidity and elasticity has been proposed.
- the hard cotton structure described in Patent Document 1 lacks flexibility because of its high rigidity, and is unsuitable for uses such as comforters and jackets that require ease along the body.
- Patent Document 2 discloses a stuffed cotton in which a layer made of fibers having a single fiber fineness of 1.5 denier or less and a layer made of fibers having a single fiber fineness of 2.5 to 15 denier are laminated. Proposed.
- the stuffed cotton is simply formed by laminating a fiber layer (web) having a small single fiber fineness and a fiber layer (web) having a large single fiber fineness, it has an excellent compression recovery rate like a feather. Cannot be achieved.
- fibers having different finenesses are not entangled, even if fibers having two different finenesses are used, there is almost no effect of increasing the bulkiness.
- the “web” means a sheet formed by overlapping fibers.
- the present invention is intended to solve the problems in the prior art described above, and to provide stuffed cotton that is excellent in bulkiness and flexibility, and that is suitably used for bedding such as comforters and down jackets.
- the present invention has the following aspects.
- a short fiber A having a single fiber fineness a of 0.001 dtex to 1.0 dtex is included in an amount of 5 to 90% by mass with respect to the total mass of the stuffed cotton, and a 100% cotton fabric having a side of 45 cm is 100% cotton.
- Cotton stuffing as described in ⁇ 1> whose bulkiness is 180 mm or more.
- ⁇ 3> The stuffed cotton according to ⁇ 1> or ⁇ 2>, wherein the heat retention rate is 93% or more.
- a short fiber B having a single fiber fineness b of 0.8 dtex to 20 dtex is included in an amount of 10 to 95% by mass with respect to the total mass of the stuffed cotton, and the single fiber fineness a of the short fiber A and the short fiber B
- ⁇ 5> The stuffed cotton according to ⁇ 4>, wherein the single fiber fineness b of the short fiber B is 1.3 to 2.8 dtex.
- ⁇ 6> The stuffed cotton according to any one of ⁇ 1> to ⁇ 5>, wherein the number of neps present in 1 g of the stuffed cotton is 30 or more.
- ⁇ 7> The stuffed cotton according to any one of ⁇ 1> to ⁇ 6>, wherein the single fiber fineness a of the short fiber A is 0.001 dtex or more and less than 0.4 dtex.
- ⁇ 8> The stuffed cotton according to any one of ⁇ 1> to ⁇ 5>, wherein the single fiber fineness a of the short fiber A is 0.4 dtex or more and 1.0 dtex or less.
- ⁇ 9> The stuffed cotton according to any one of ⁇ 1> to ⁇ 8>, wherein the length of the short fiber A is 20 to 60 mm, and the length of the short fiber B is 20 to 60 mm.
- the polysiloxane is attached to the short fiber A in an amount of 0.1 to 15.0% by mass based on the total mass of the short fiber A, ⁇ 1> to ⁇ 9> Filled cotton as described.
- ⁇ 11> The stuffed cotton according to any one of ⁇ 1> to ⁇ 10>, wherein the short fibers A are acrylic fibers.
- the present invention it is possible to solve the problems in the prior art, and further to provide stuffed cotton which is excellent in bulkiness, flexibility and heat retention, and can be suitably used for bedding such as a comforter or a down jacket. Can do.
- One aspect of the present invention is a stuffed cotton containing 5 to 90 mass% of short fibers A having a single fiber fineness a of 0.001 dtex to 1.0 dtex with respect to the total mass of the stuffed cotton.
- the single fiber fineness a includes the short fiber A of 0.001 dtex or more and less than 0.4 dtex
- the short fiber A is used during a filling cotton processing step (such as a cotton opening step, a card step, or a filling cotton packing step). Nep with the core is formed.
- Nep refers to a lump formed by entanglement of a part of one or a plurality of fibers, the lump having a diameter of 1 to 5 mm and not independent as a lump. This nep can play a role similar to a downball in feather down.
- a “down ball” refers to a feather having a feather shape extending radially and spherical, and can contain more air. That is, the nep formed of the short fibers A can improve the bulkiness of the stuffed cotton, and it is easy to prevent the stuffed cotton stored in the bedding, down jacket, etc. from being biased during washing.
- the single fiber fineness a of the short fiber A is 0.001 dtex or more because a soft texture similar to feathers can be obtained. Moreover, if the single fiber fineness a of the short fiber A is less than 0.4 dtex, it is preferable because the above-described nep is likely to occur. From the above viewpoint, the single fiber fineness a of the short fiber A is more preferably 0.01 dtex to 0.3 dtex, and particularly preferably 0.05 dtex to 0.2 dtex. In this specification, “single fiber fineness” refers to a value measured according to JIS L1015: 2010.
- the short fiber A having a single fiber fineness of 0.4 dtex or more and 1.0 dtex or less is included, a nep is not formed, but an air layer can be increased between the fibers, and the bulkiness and heat retention are improved.
- the single fiber fineness a of the short fiber A is more preferably 0.6 to 0.9 dtex, and further preferably 0.7 to 0.8 dtex.
- the short fiber A may be a mixture of short fibers having different single fiber fineness.
- the single fiber fineness of each short fiber is preferably in the range of the single fiber fineness a, that is, in the range of 0.001 dtex to 1.0 dtex.
- the ratio is based on the total mass of the short fiber A. On the other hand, it is preferably 20 to 100% by mass, more preferably 30 to 80% by mass.
- the short fiber A when the short fiber A is a mixture with the above-described short fiber having a single fiber fineness of 0.4 dtex or more and 1.0 dtex or less, the ratio is based on the total mass of the short fibers A. On the other hand, it is preferably 20 to 100% by mass, more preferably 30 to 80% by mass.
- the content of the short fibers A is 5 to 90% by mass with respect to the total mass of the stuffed cotton. If the content of the short fiber A with respect to the total mass of the stuffed cotton is in the range of 5 to 90% by mass, the bulkiness and heat retention are improved, which is preferable. From the viewpoint, the content is more preferably 10 to 80% by mass, and further preferably 20 to 60% by mass. Further, the short fiber A having a single fiber fineness a of 0.001 dtex to 1.0 dtex usually has a single fiber fineness much smaller than fibers used for clothing applications.
- the short fiber A having such a single fiber fineness By blending the short fiber A having such a single fiber fineness in an amount of 5 to 90% by mass with respect to the total mass of the stuffed cotton, it becomes possible to increase the flexibility of the stuffed cotton.
- the content of the short fiber A with respect to the total mass of the stuffed cotton can be 100% by mass, the content of the short fiber A from the viewpoint of achieving both bulkiness, flexibility, and heat retention of the stuffed cotton. Is preferably in the aforementioned range.
- the type of short fiber A is not particularly limited, such as acrylic fiber, polyester fiber, nylon fiber, acetate fiber, synthetic fiber such as rayon and cupra, and animal hair fiber such as wool. Is preferred.
- the stuffed cotton of the present invention is obtained by filling 100 g of the stuffed cotton into a bag-like cover made by stacking two sheets of 100% cotton with a square of 45 cm on each side, and then filling the bag.
- the heat retention rate of the test piece obtained by sewing the openings of the cover is measured according to JIS L1096 heat retention A method (constant temperature method): 2010 is 89% or more. Since the heat retention rate of the stuffed cotton of the present invention is 89% or more, it is possible to make a product with high heat retention even if the amount of cotton is small. From the viewpoint, the heat retention rate is more preferably 91% or more, and further preferably 93% or more.
- the bulkiness (height) is preferably 180 mm or more. If the bulkiness is 180 mm or more, the product using the stuffed cotton can be reduced in weight, and the heat retaining property tends to be high. From the above viewpoint, the bulkiness is more preferably 200 mm or more, and further preferably 220 mm or more.
- the bulkiness of the stuffed cotton of the present invention can be measured by the following method. (Bulkness measuring method) (1) Collect 1.5 g of stuffed cotton that was allowed to stand in an atmosphere of 100 ° C. for 30 minutes.
- the short fiber B having a single fiber fineness b of 0.8 dtex to 20 dtex is included in an amount of 10 to 95% by mass with respect to the total mass of the stuffed cotton.
- the stuffed cotton of the present invention is preferably a mixture of short fibers A and short fibers B.
- the kind of short fiber B is not particularly limited, such as acrylic fiber, polyester fiber, nylon fiber, acetate fiber, synthetic fiber such as rayon and cupra, and animal hair fiber such as wool, but acrylic fiber is preferable in terms of heat retention. .
- the short fiber B mixed with the short fiber A can be appropriately selected according to the intended use or performance.
- side-by-side fibers are mixed to express self-crimping, and the bulkiness of the stuffed cotton is improved.
- Y-shaped fibers are mixed to improve the bulkiness and heat retention of the stuffed cotton. Methods and the like.
- the single fiber fineness b of these short fibers B is 0.8 dtex or more, it is preferable because compression recovery is easily obtained, and when it is 20 dtex or less, bulkiness is easily obtained and the texture is hard to harden. From the above viewpoint, the single fiber fineness b of the short fiber B is more preferably 1 to 5 dtex, and further preferably 1.3 to 2.8 dtex.
- the content of the short fibers B in the stuffed cotton is preferably 10 to 95% by mass and more preferably 40 to 80% by mass with respect to the total mass of the stuffed cotton.
- the content of the short fibers B in the stuffed cotton is in the range of 10 to 95% by mass with respect to the total mass of the stuffed cotton, the bulkiness is easily obtained.
- the content of short B is more preferably 30 to 90% by mass, and further preferably 40 to 80% by mass.
- the short fiber B combined with the short fiber A is thicker than the short fiber A in terms of bulkiness and compression recovery.
- the relationship between the single fiber fineness a of the short fibers A and the single fiber fineness b of the short fibers B satisfies b ⁇ 1.5a. If the relationship between the single fiber fineness a and the single fiber fineness b is b ⁇ 1.5a, the bulkiness is easily increased. From the above viewpoint, the relationship between the single fiber fineness a and the single fiber fineness b is more preferably b ⁇ 2.0a, and more preferably b ⁇ 2.5a.
- the number of neps present in 1 g of stuffed cotton is preferably 30 or more. If the number of neps is 30 or more, when the bedding or down jacket in which the stuffed cotton of the present invention is stored is washed, the entanglement of the fibers does not increase too much and the bias of the stuffed cotton can be reduced.
- the upper limit of the number of neps present in 1 g of stuffed cotton is not particularly limited. However, if an attempt is made to increase the number of neps, fiber breakage will increase, and further fiber entanglement will occur, and the fiber density of the nep will increase. Therefore, 200 or less is preferable.
- the stuffed cotton As for the number of neps in 1 g of stuffed cotton, the stuffed cotton is allowed to stand in a room at room temperature (25 ° C.) and a humidity of 65% for 1 hour, and then 1 g of the stuffed cotton is collected. Next, it can obtain
- the length of the short fiber A is preferably 20 to 60 mm. If the length of the short fiber A is 20 mm or more, the permeability during the processing step is good, the core nep is likely to occur, the fibers are less likely to be entangled after washing, and the stuffed cotton is uneven. It is preferable because it is small. Moreover, if the length of the said short fiber A is 60 mm or less, it is preferable at the point that troubles, such as winding in each process, can be reduced.
- the length of the short fiber A is more preferably 30 to 50 mm, and further preferably 35 to 45 mm.
- the length of the short fiber B is preferably 20 to 60 mm.
- the length of the short fiber B is 20 mm or more, the passability in the processing step is good and the bulkiness tends to be high. If the length of the said short fiber B is 60 mm or less, it is preferable at the point that troubles, such as winding in each process, can be reduced.
- the length of the short fiber B is more preferably 30 to 55 mm, and further preferably 35 to 45 mm.
- fiber length refers to the length in the fiber axis direction.
- 0.1 to 15.0% by mass of polysiloxane is attached to the total mass of the short fibers A.
- the method for attaching polysiloxane to the short fibers A include a method of applying an oil containing polysiloxane to the surface of the short fibers A. In this way, by applying an oil agent containing polysiloxane to the surface of the short fiber A, the smoothness of the fiber can be improved, the friction between the fibers can be reduced and the fiber can be easily moved, and thus the flexibility is improved.
- the amount of the polysiloxane adhering to the short fibers A is preferably 0.1 to 15.0% by mass with respect to the total mass of the short fibers A. 3 to 8.0% by mass is more preferable, and 0.5 to 5.0% by mass is particularly preferable. If the adhesion amount of polysiloxane is within the above range, the above-mentioned action can be effectively obtained, which is preferable.
- the polysiloxane attached to the short fibers A include amino-modified silicone. These may be used alone or in combination of two or more.
- the fiber tow was cut to a predetermined length in the step of cutting the short fiber A of the present invention to a predetermined length.
- the short fiber A may be provided with an oil agent containing the polysiloxane, or the oil agent is provided before cutting the tow, and then dried and cut to obtain the short fiber A to which the polysiloxane is adhered. It may be a method.
- flexibility can be improved more by providing the same polysiloxane.
- the “short fiber” refers to a fiber obtained by cutting the tow of the fiber so as to have the above-mentioned preferable length, that is, a “fiber after being cut short”. .
- the short fiber A is preferably an acrylic fiber.
- the performance in each application can be further enhanced by the heat retention, moisture absorption, and light weight of the acrylic fiber.
- the stuffed cotton contains 5 to 10% by mass of a heat-adhesive short fiber, and at least a part of the heat-adhesive short fiber is bonded to the short fiber A. Is preferable in terms of bulkiness and compression recovery. Moreover, since at least one part of the said heat bondable short fiber has adhere
- the heat-bondable short fibers resins having a melting point lower than those of the short fibers A and B are preferably used, and it is more preferable to use short fibers composed of a low melting point resin having a melting point of 100 to 200 ° C. .
- short fibers made from a low-melting polyester obtained by copolymerizing polyethylene terephthalate or polybutylene terephthalate with isophthalic acid, adipic acid, cyclohexanedicarboxylic acid, sebacic acid or the like.
- this heat-adhesive short fiber is heat-bonded to a part of the short fiber A, whereby the nep can be held.
- the short fiber A in the present invention has an effect that the single fiber fineness a is very small and the formed nep is difficult to unravel, the heat-adhesive short fiber is used in applications where durability is required. Depending on the situation.
- the manufacturing method of the stuffed cotton of this invention is demonstrated.
- the stuffed cotton is formed by laminating a short fiber A composed of ultrafine fibers having a single fiber fineness a of 0.001 dtex to 1.0 dtex and an arbitrary short fiber B, and passing them through a fiber opening machine.
- the fiber after opening can be manufactured by a method including a step of air blowing and / or mixing with a card machine.
- the process of giving a polysiloxane to the said short fiber A, the process of making a heat-adhesive short fiber adhere to a part of said short fiber A is included. May be.
- a method for producing a short fiber A having a single fiber fineness a of 0.001 dtex to 1.0 dtex for example, a polyacrylonitrile copolymer is dissolved in dimethylacetamide to obtain a solution, and then a nozzle having a discharge port is used.
- the solution (A) is obtained by discharging and coagulating the solution in an aqueous solution of dimethylacetamide to obtain a coagulated fiber, and the coagulated fiber obtained in the step (A) is subjected to wet heat stretching, dry heat stretching, or both.
- step (B) of obtaining a fiber of 0.0 dtex a step (C) of further imparting mechanical crimping to the fiber using a thermal relaxation treatment and / or a crimping machine, if necessary, and the step (C) After, the length 0 cut so as to ⁇ 60 mm, comprising the step (D) to obtain short fibers A and the like.
- the step (C) is preferably mechanical crimping using a crimping machine, and the number of crimps is preferably 3 to 20 peaks / 25 mm from the viewpoint of bulkiness.
- the ratio of the polyacrylonitrile copolymer dissolved in dimethylacetamide to the solution is preferably 10 to 30% by mass, more preferably 15 to 25% by mass.
- the hole diameter of the discharge port of the nozzle is preferably 0.010 to 0.080 mm, and more preferably 0.015 to 0.060 mm.
- the concentration of dimethylacetamide in the aqueous dimethylacetamide solution is preferably 10 to 80% by mass, more preferably 20 to 60% by mass.
- the draw ratio of the coagulated fiber is preferably 2.0 to 8.0 times, more preferably 3.0 to 6.5 times.
- the oil agent containing polysiloxane such as amino modified silicone
- the manufacturing method of stuffed cotton includes the process of adhering the heat-adhesive short fiber to the short fiber A, the short fiber A obtained in the step (D) and the heat-adhesive short fiber are mixed, and 100 It is preferable to fix the nep by heating at a temperature of ⁇ 220 ° C.
- Another aspect of the present invention is a stuffed cotton containing 5 to 90% by mass of short fibers A composed of ultrafine fibers having a single fiber fineness a of 0.001 dtex to 1.0 dtex, based on the total mass of the stuffed cotton. . Further, it is preferable that the length of the short fibers A of at least 50% by mass of the short fibers A is 20 to 60 mm.
- the single fiber fineness was measured according to JIS L1015: 2010. (Bulkness measuring method) (1) Collect 1.5 g of stuffed cotton that was allowed to stand in an atmosphere of 100 ° C. for 30 minutes. (2) Next, it is divided into about 0.15 g portions and gently dropped into a 1000 mL graduated cylinder with a diameter of 65 mm, and uniformly filled so that there is no gap. (3) A 6 g load disk is lowered into the graduated cylinder, and is left to stand for 2 minutes with a uniform load applied to the stuffed cotton. (4) The height (mm) from the bottom of the graduated cylinder to the lowest part of the load disk was measured, and the height was made bulky.
- Example 1 A copolymer composed of 95% by mass of acrylonitrile units and 5% by mass of vinyl acetate units was dissolved in dimethylacetamide so that the concentration of the copolymer was 20% by mass. Thereafter, using a nozzle having a hole diameter of 0.050 mm and having a round discharge hole, the solution was discharged into an aqueous solution of 30% by mass of dimethylacetamide and solidified. Then, 6.5 times wet heat drawing was performed, and the fiber was obtained by washing in boiling water. An oil agent was applied to the fiber to produce a tow, and the tow was dried with a plurality of drying rolls having a surface temperature of 150 ° C.
- short fiber A was put into an aqueous solution containing polysiloxane (Marposil Coat EX-G5: manufactured by Matsumoto Yushi Seiyaku Co., Ltd.), and then dried to obtain a single fiber fineness of 0.1 dtex and a polysiloxane fiber.
- a short fiber A having an adhesion amount of 3.0% by mass was obtained (short fiber A1).
- the obtained short fiber A1 50% by mass and the short fiber B as an acrylic fiber (Mitsubishi Rayon Co., Ltd., product number: H815, single fiber fineness: 2.2 dtex, fiber length: 51 mm) and 50% by mass
- Example 1 Filled cotton was produced in the same manner as in Example 1 except that the short fibers B mixed with the short fibers A1 and the ratio thereof were changed as shown in Table 1.
- Table 1 shows the results of bulkiness evaluation and flexibility evaluation of the obtained stuffed cotton. The details of each fiber listed in Table 1 are as follows.
- Y-shaped acrylic fiber Mitsubishi Rayon Co., Ltd., product number: HS42, single fiber fineness: 6.6 dtex, fiber length: 38 mm
- Side-by-side acrylic fiber Mitsubishi Rayon Co., Ltd., product number: MW66, single fiber fineness: 2.2 dtex, fiber length: 38 mm
- Example 10 A copolymer composed of 95% by mass of acrylonitrile units and 5% by mass of vinyl acetate units was dissolved in dimethylacetamide so that the concentration of the copolymer was 15% by mass. Thereafter, using a nozzle having a hole diameter of 0.015 mm and having a round discharge hole, the solution was discharged and solidified in an aqueous solution of 30% by mass of dimethylacetamide. Thereafter, 6.0 times wet heat drawing was performed, and the fiber was obtained by washing in boiling water. An oil agent was applied to the fiber to produce a tow, and the tow was dried with a plurality of drying rolls having a surface temperature of 150 ° C.
- short fiber A was put into an aqueous solution containing polysiloxane (Marposil Coat EX-G5: manufactured by Matsumoto Yushi Seiyaku Co., Ltd.), and then dried to obtain a single fiber fineness of 0.005 dtex and a polysiloxane fiber.
- a short fiber A having an adhesion amount of 3.0% by mass was obtained (short fiber A2).
- the obtained short fiber A2 50% by mass
- the short fiber B acrylic fiber (manufactured by Mitsubishi Rayon Co., Ltd., product number: H815, single fiber fineness: 2.2 dtex, fiber length: 51 mm) and 50% by mass
- H815, single fiber fineness: 2.2 dtex, fiber length: 51 mm acrylic fiber
- Table 1 shows the results of bulkiness evaluation and flexibility evaluation of the obtained stuffed cotton.
- Example 11 to 13 Filled cotton was produced in the same manner as in Example 10 except that the short fibers B mixed with the short fibers A2 and the ratio thereof were changed as shown in Table 1. Tables 1 and 2 show the results of bulkiness evaluation and flexibility evaluation of the stuffed cotton obtained.
- Example 14 to 16 Filled cotton was produced in the same manner as in Example 1 except that the length of the short fiber A1 and the short fiber B in Example 1 were as shown in Table 2.
- Table 2 shows the results of bulkiness evaluation and flexibility evaluation of the obtained stuffed cotton.
- Example 17 to 18 About the short fiber A1 of Example 1, padding cotton was manufactured by the method similar to Example 1 except having changed the polysiloxane adhesion amount and the short fiber B as Table 2.
- FIG. Table 2 shows the results of bulkiness evaluation and flexibility evaluation of the obtained stuffed cotton.
- short fiber A acrylic fiber (manufactured by Mitsubishi Rayon Co., Ltd., product number: H616, single fiber fineness 0.8 dtex, fiber length 38 mm, short fiber A3) 50% by mass
- short fiber B acrylic fiber (Mitsubishi Rayon ( Co., Ltd., product number: H815, single fiber fineness: 2.2 dtex, fiber length: 51 mm) was mixed with a blending machine, passed through a spreader, and then mixed with a card machine to obtain stuffed cotton.
- Table 2 shows the results of evaluation of bulkiness and heat retention of the stuffed cotton obtained.
- Example 20 to 21 Filled cotton was produced in the same manner as in Example 19 except that the ratio of the short fibers B mixed with the short fibers A3 was changed as shown in Table 2.
- Table 2 shows the results of evaluation of bulkiness and heat retention of the stuffed cotton obtained.
- Example 22 to 23 Filled cotton was produced in the same manner as in Example 19 except that the type of the short fiber B mixed with the short fiber A3 was changed as shown in Table 2.
- Table 2 shows the results of evaluation of bulkiness and heat retention of the stuffed cotton obtained.
- the details of the cross-shaped acrylic fiber and the flat-shaped acrylic fiber shown in Table 2 are as follows.
- Cross-shaped acrylic fiber Mitsubishi Rayon Co., Ltd., single fiber fineness: 2.2 dtex, fiber length: 38 mm
- Flat shape acrylic fiber Mitsubishi Rayon Co., Ltd., product number: HS08, single fiber fineness: 17 dtex, fiber length: 38 mm
- the short fiber A is made of acrylic fiber (Mitsubishi Rayon Co., Ltd., product number: H616, single fiber fineness 1.0 dtex, fiber length 38 mm, short fiber A4), and the short fiber B is side-by-side acrylic fiber (Mitsubishi Rayon ( Co., Ltd., product number: MW66, single fiber fineness: 2.2 dtex, fiber length: 38 mm) was used to produce stuffed cotton in the same manner as in Example 19.
- Table 2 shows the results of bulkiness evaluation and flexibility evaluation of the obtained stuffed cotton.
- the stuffed cotton of Examples 1 to 24 containing the short fibers A defined in the present invention had excellent bulkiness and flexibility.
- the stuffed cotton of Comparative Examples 1 to 7 not containing the short fiber A defined in the present invention was inferior in bulkiness and flexibility.
- Table 3 shows the results of bulkiness evaluation and heat retention evaluation of stuffed cotton obtained using the following fibers.
- -Primaloft manufactured by ALBANY, 100% polyester fiber
- Primaloft is composed of hollow fine polyester fibers and fine polyester fibers, and has a high heat retention rate but is inferior in bulkiness.
- Air Flake manufactured by Kurashiki Textile Co., Ltd., polyester and nylon composite cotton fiber
- Containing for stuffing which is composed of long fibers, includes core yarn and flower yarn longer than core yarn, the core yarn and the flower yarn are integrated by entanglement, and the flower yarn is opened to form a loop-like fiber
- the yarn is a hollow fiber.
- the stuffed cotton obtained using air flakes is both bulky and warm, but it is difficult to distribute uniformly as stuffed cotton because it is connected by long fibers, and because of the core yarn, it is inferior in texture. It was a thing.
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Abstract
Description
そこで、ポリエステル繊維のような合成繊維に嵩高性を付与する試みがなされている。例えば、特許文献1には、繊維構造体を構成するマトリックス、及び熱接着性短繊維の両方の繊維表面にポリエーテル・エステル系ブロック共重合体を主成分とする表面処理剤を特定量付着させることにより、剛直性と弾力性を向上させた硬綿構造体が提案されている。しかしながら、特許文献1に記載の硬綿構造体は、剛直性が高いが故に柔軟性に欠けており、掛け布団やジャケット等、体への沿い易さが求められる用途には不向きである。
また、特許文献2には、1.5デニール以下の単繊維繊度を有する繊維からなる層と、2.5~15デニールの単繊維繊度を有する繊維からなる層とが積層されてなる詰め綿が提案されている。しかしながら、前記詰め綿は、単繊維繊度の小さな繊維の層(ウェブ)と単繊維繊度の大きな繊維の層(ウェブ)を積層しているだけであるので、羽毛のような優れた圧縮回復率を達成することはできない。また、異なる繊度の繊維が絡み合っていないので、2種類の異なる繊度を有する繊維を用いていても嵩高性を高める効果がほとんどない。ここで、「ウェブ」とは、繊維を重ね合わせてシート状にしたものを意味する。
さらに、特許文献3には、単繊維繊度0.5dtex以上3.0dtex未満の短繊維と、5.0dtex以上10.0dtex未満の中空繊維と、10.0dtex以上30.0dtex未満の中空繊維と、1.0dtex以上5.0dtex未満の熱接着性短繊維とを混合してなる詰め綿が提案されている。特許文献3の詰め綿では、0.5dtex以上3.0dtex未満の短繊維で保温性を付与し、5.0dtex以上の短繊維で保温性と嵩高性を付与している。しかしながら、特許文献3の詰め綿でも十分な嵩高性が得られないという問題がある。
<1>単繊維繊度aが0.001dtex~1.0dtexの短繊維Aを、詰め綿の総質量に対して5~90質量%含み、1辺が45cmの正方形の綿100%の生地を2枚重ねて作成した袋状のカバーの中に、前記詰め綿を100g略均等に詰めた後、前記袋状カバーの開口部を縫い合わせて得られた試験片を、JIS L1096 保温性A法(恒温法):2010に準拠して測定した保温率が、89%以上である、詰め綿。
<2>嵩高性が180mm以上である、<1>に記載の詰め綿。
<3>前記保温率が93%以上である、<1>又は<2>に記載の詰め綿。
<4>単繊維繊度bが0.8dtex~20dtexの短繊維Bを、前記詰め綿の総質量に対して10~95質量%含み、前記短繊維Aの単繊維繊度aと前記短繊維Bの単繊維繊度bとの関係がb≧1.5aを満たす<1>~<3>のいずれか一項に記載の詰め綿。
<5>前記短繊維Bの単繊維繊度bが、1.3~2.8dtexである<4>に記載の詰め綿。
<6>前記詰め綿1g中に存在するネップの数が30個以上である<1>~<5>のいずれか一項に記載の詰め綿。
<7>前記短繊維Aの単繊維繊度aが0.001dtex以上0.4dtex未満である<1>~<6>のいずれか一項に記載の詰め綿。
<8>前記短繊維Aの単繊維繊度aが0.4dtex以上1.0dtex以下である<1>~<5>のいずれか一項に記載の詰め綿。
<9>前記短繊維Aの長さが20~60mmであり、前記短繊維Bの長さが20~60mmである、<1>~<8>のいずれか一項に記載の詰め綿。
<10>ポリシロキサンが前記短繊維Aに、前記短繊維Aの総質量に対して、0.1~15.0質量%付着している、<1>~<9>のいずれか一項に記載の詰め綿。
<11>前記短繊維Aが、アクリル繊維である、<1>~<10>のいずれか一項に記載の詰め綿。
<12>熱接着性短繊維を、前記詰め綿の総質量に対して5~10質量%含み、前記熱接着性短繊維の少なくとも一部は、前記短繊維Aに接着している、<1>~<11>のいずれか一項に記載の詰め綿。
本発明の1つの態様は、単繊維繊度aが0.001dtex~1.0dtexの短繊維Aを、詰め綿の総質量に対して5~90質量%含む、詰め綿である。
単繊維繊度aが0.001dtex以上0.4dtex未満の短繊維Aを含む場合には、詰め綿の加工工程時(開綿工程、カード工程、もしくは詰め綿パッキング工程など)に、前記短繊維Aを核としたネップが形成される。「ネップ」とは、1本又は複数の繊維の一部が絡み合って出来た塊状であって、その塊の径が1~5mmのものであり、塊状として独立していないもののことを指す。このネップは、羽毛のダウンにおけるダウンボールと同様の役割を果たすことができる。「ダウンボール」とは、羽毛の羽枝が放射状に延びて球状になったもののことを指し、より多くの空気を含むことができる。すなわち、前記短繊維Aにより形成されるネップにより、詰め綿の嵩高性を向上させることが可能となり、寝具やダウンジャケット等に収納された詰め綿が洗濯時に偏ることを防ぎ易くなる。
本発明の1つの態様において、短繊維Aの単繊維繊度aが、0.001dtex以上であれば、羽毛に似た柔らかな風合いが得られるため好ましい。また、短繊維Aの単繊維繊度aが0.4dtex未満であれば、前述のネップが発生し易いため好ましい。
前記観点から、短繊維Aの単繊維繊度aは、0.01dtex~0.3dtexがより好ましく、0.05dtex~0.2dtexが特に好ましい。
なお、本明細書において「単繊維繊度」とは、JIS L1015:2010に準じて測定した値のことを指す。
また、単繊維繊度が0.4dtex以上1.0dtex以下の短繊維Aを含む場合には、ネップは形成されないが、繊維同士の間に空気層が多くでき、嵩高性と保温性が向上するため好ましい。前記観点から、短繊維Aの単繊維繊度aは0.6~0.9dtexがより好ましく、0.7~0.8dtexがさらに好ましい。
本発明の1つの側面において、短繊維Aは、異なる単繊維繊度を有する短繊維の混合物であってもよい。また、短繊維Aが複数の短繊維の混合物である場合、各短繊維の単繊維繊度は、上記単繊維繊度aの範囲、すなわち、0.001dtex~1.0dtexの範囲であることが好ましい。
また、本発明の1つの側面において、短繊維Aが、前述の単繊維繊度が0.001dtex以上0.4dtex未満の短繊維との混合物である場合、その割合は、短繊維Aの総質量に対して、20~100質量%が好ましく、30~80質量%がより好ましい。
また、本発明の1つの側面において、短繊維Aが、前述の単繊維繊度が0.4dtex以上1.0dtex以下の短繊維との混合物である場合、その割合は、短繊維Aの総質量に対して、20~100質量%が好ましく、30~80質量%がより好ましい。
詰め綿の総質量に対する前記短繊維Aの含有量が、5~90質量%の範囲であれば、嵩高性と保温性が向上するため好ましい。
前記観点から、前記含有量は10~80質量%がより好ましく、20~60質量%が更に好ましい。
また、単繊維繊度aが0.001dtex~1.0dtexである短繊維Aは、通常、衣料用途向けに使用される繊維よりも、単繊維繊度が非常に小さい。このような単繊維繊度を有する短繊維Aを、詰め綿の総質量に対して5~90質量%配合することにより、詰め綿の柔軟性を高めることが可能となる。
詰め綿の総質量に対する前記短繊維Aの含有量を100質量%とすることも可能であるが、詰め綿の嵩高性、柔軟性、及び保温性の両立の観点から、短繊維Aの含有量は前述の範囲であることが好ましい。
また、短繊維Aの種類としては、アクリル繊維、ポリエステル繊維、ナイロン繊維、アセテート繊維、レーヨン、キュプラ等の合成繊維、羊毛等の獣毛繊維など特に限定されないが、保温性の点で、アクリル繊維が好ましい。
前記観点から、前記保温率は91%以上がより好ましく、93%以上がさらに好ましい。
前記嵩高性が180mm以上であれば、その詰め綿を使用した製品の軽量化ができ、保温性も高くなり易い。
前記観点から、前記嵩高性は、200mm以上がより好ましく、220mm以上がさらに好ましい。
本発明の詰め綿の嵩高性は、以下の方法で測定することができる。
(嵩高性の測定方法)
(1)100℃の雰囲気中に30分間静置した詰め綿1.5gを採取する。
(2)次に、約0.15gずつに分けて、直径が65mmの1000mLメスシリンダーに静かに落下させて、隙間が空かないように均一に充填する。
(3)6gの荷重用円盤をメスシリンダーの中に降下させ、詰め綿に均一に荷重をかけた状態で2分間静置する。
(4)メスシリンダーの底部から荷重用円盤の最下部までの高さ(mm)を測定し、その高さを嵩高性とする。
なお、測定は3検体について行い、それらの平均値を詰め綿の嵩高性とする。
本発明の詰め綿は、短繊維Aと、短繊維Bとを混合したものであることが好ましい。単繊維繊度bが0.8dtex~20dtexの短繊維Bを短繊維Aと混合することでネップを大きくし、詰め綿の嵩高性、圧縮回復性を更に高めることができる。
短繊維Bの種類としては、アクリル繊維、ポリエステル繊維、ナイロン繊維、アセテート繊維、レーヨン、キュプラ等の合成繊維、羊毛等の獣毛繊維など特に限定されないが、保温性の点で、アクリル繊維が好ましい。
詰め綿中の短繊維Bの含有量が、詰め綿の総質量に対して10~95質量%の範囲であれば、嵩高性が得られ易くなる。前記観点から短Bの前記含有量は、30~90質量%がより好ましく、40~80質量%がさらに好ましい。
また、短繊維Aと組み合わせる短繊維Bは、短繊維Aより太いことが、嵩高性、圧縮回復性の点で好ましい。すなわち、短繊維Aの単繊維繊度aと短繊維Bの単繊維繊度bとの関係がb≧1.5aを満たすことが好ましい。
単繊維繊度aと単繊維繊度bとの関係が、b≧1.5aであれば、嵩高性を高くしやすい。前記観点から、単繊維繊度aと単繊維繊度bとの関係は、b≧2.0aがより好ましく、b≧2.5aがさらに好ましい。
ネップの数が30個以上であれば、本発明の詰め綿が収納された寝具やダウンジャケット等を洗濯した時に、繊維の絡み合いが多くなり過ぎず、詰め綿の偏りを少なくできる。詰め綿1g中に存在するネップの数の上限値は特に限定されないが、ネップを多くしようとすると、繊維の折損が多くなり、さらに繊維の絡みが多くなること、ネップの繊維密度が高くなることにより、嵩が低くなる傾向にため、200個以下が好ましい。
詰め綿1g中のネップの数は、詰め綿を室温(25℃)、湿度65%の部屋で1時間静置した後、前記詰め綿1gを分取する。次に、前記詰め綿を薄く広げ、前記詰め綿中のネップを目視にて数えることによって求めることができる。
また、前記短繊維Bの長さが、20~60mmであることが好ましい。前記短繊維Bの長さが、20mm以上であれば、加工工程の通過性が良好であり、嵩高性が高くなり易い。前記短繊維Bの長さが、60mm以下であれば、各工程での巻きつきなどのトラブルを軽減できるという点で好ましい。また、前記短繊維Bの長さは、30~55mmがより好ましく、35~45mmがさらに好ましい。
ここで、「繊維の長さ」とは、繊維軸方向の長さのことを指す。
前記短繊維Aにポリシロキサンを付着させる方法としては、前記短繊維Aの表面にポリシロキサンを含む油剤を付与する方法が挙げられる。このように、短繊維Aの表面にポリシロキサンを含む油剤を付与することにより、繊維の平滑性を高め、繊維間の摩擦を軽減して移動しやすくすることが可能なため柔軟性が良好となりやすく、さらには詰め綿を圧縮した際に、繊維同士が絡みあうことによって発生するフェルト化を防ぐことができるため、嵩高性が良好となり易い。
本発明の1つの態様において、前記短繊維Aに付着しているポリシロキサンの量は、前記短繊維Aの総質量に対して0.1~15.0質量%であることが好ましく、0.3~8.0質量%がより好ましく、0.5~5.0質量%が特に好ましい。ポリシロキサンの付着量が上記範囲内であれば、上述の作用を効果的に得ることができるため好ましい。
このポリシロキサンを含む油剤を前記短繊維Aに付与するためには、本発明の短繊維Aを所定の長さにカットする工程において、繊維のトウを所定の長さにカットして得られた短繊維Aに、前記ポリシロキサンを含む油剤を付与してもよく、あるいはトウをカットする前に前記油剤を付与し、その後乾燥させてカットすることによって、ポリシロキサンが付着した短繊維Aを得る方法であってもよい。
また、前記短繊維Aと混合する短繊維Bについても、同様のポリシロキサンを付与することでより柔軟性を向上させることが可能である。
なお、本明細書において、「短繊維」とは、前記繊維のトウを、上述の好ましい長さとなるように切断して得られた繊維、すなわち、「短く切断した後の繊維」のことを指す。
熱接着性短繊維としては、短繊維Aや短繊維Bよりも融点の低い樹脂を用いることが好ましく、100~200℃の融点を有する低融点樹脂から構成される短繊維を用いることが更に好ましい。具体的には、ポリエチレンテレフタレートやポリブチレンテレフタレートに、イソフタル酸、アジピン酸、シクロヘキサンジカルボン酸、セバシン酸などを共重合させてなる低融点ポリエステルを原料とする短繊維を用いることがより好ましい。前述の核となるネップを発現させた後、この熱接着性短繊維を前記短繊維Aの一部に加熱接着することにより、ネップを保持することが可能となる。但し、本発明における短繊維Aは、単繊維繊度aが非常に小さく、形成されたネップがほどけにくいという効果を有しているため、前記熱接着性短繊維は、耐久性が要求される用途に応じて実施すればよい。
本発明の1つの態様において、前記詰め綿は、単繊維繊度aが0.001dtex~1.0dtexの極細繊維からなる短繊維Aと、任意の短繊維Bとを積層して開繊機を通過させた後、開繊後の繊維を風送、及び/又はカード機で混合する工程を含む方法によって製造することができる。また、本発明の詰め綿の製造方法の1つの態様においては、前記短繊維Aにポリシロキサンを付与する工程、前記短繊維Aの一部に、熱接着性短繊維を接着させる工程を含んでいてもよい。
前記製造方法において、ジメチルアセトアミドに溶解させるポリアクリロニトリル共重合体の溶解液に対する割合としては、10~30質量%が好ましく、15~25質量%がより好ましい。
また、前記ノズルの吐出口の孔径としては、0.010~0.080mmであることが好ましく、0.015~0.060mmであることがより好ましい。
また、ジメチルアセトアミド水溶液中のジメチルアセトアミドの濃度としては、10~80質量%が好ましく、20~60質量%がより好ましい。
また、前記凝固繊維の延伸倍率としては、2.0~8.0倍であることが好ましく、3.0~6.5倍であることがより好ましい。
更に、詰め綿の製造方法が、熱接着性短繊維を短繊維Aに接着させる工程を含む場合、前記工程(D)で得られた短繊維Aと熱接着性短繊維とを混合し、100~220℃の温度で加熱することによってネップを固着させることが好ましい。
JIS L1015:2010に準拠して単繊維繊度を測定した。
(嵩高性の測定方法)
(1)100℃の雰囲気中に30分間静置した詰め綿1.5gを採取する。
(2)次に、約0.15gずつに分けて、直径が65mmの1000mLメスシリンダーに静かに落下させて、隙間が空かないように均一に充填する。
(3)6gの荷重用円盤をメスシリンダーの中に降下させ、詰め綿に均一に荷重をかけた状態で、2分間静置する。
(4)メスシリンダーの底部から荷重用円盤の最下部までの高さ(mm)を測定し、その高さを嵩高性とした。
なお、3検体について行い、それらの平均値を詰め綿の嵩高性として評価した。
(柔軟性評価の測定手法)
当業者5人による触手評価で、以下の基準に従って3段階評価を行い、その平均点を算出した。
A:非常に柔らかい(5点)
B:柔らかい(3点)
C:硬い(1点)
なお、表中、「-」は未測定であることを意味する。
(保温率の測定方法)
(1)1辺が45cmの正方形の生地(綿100%)を2枚重ねて作成した袋状のカバーの中に、前記詰め綿を100g略均等に詰めた後、前記袋状カバーの開口部を縫い合わせて試験片を作製する。
生地は目付188g/m2の織物を使用した。
(2)試験片を恒温発熱体に取り付ける手順からは、JIS L1096 保温性A法(恒温法):2010と同様にして保温率を測定した。
この保温率の値が高い程、保温性に優れることを意味する。
なお、表中、「-」は未測定であることを意味する。
(ネップ数の測定方法)
以下の手順で詰め綿1g中のネップの数を測定した。
室温(25℃)、湿度65%の部屋で1時間放置した後、前記詰め綿1gを分取した。次に、前記詰め綿を薄く広げ、前記詰め綿中のネップを目視にてカウントした。
アクリロニトリル単位95質量%、酢酸ビニル単位5質量%からなる共重合体を、ジメチルアセトアミドに、前記共重合体の濃度が20質量%となるように溶解させた。その後、孔径0.050mmで丸型吐出孔を持つノズルを用いて、前記溶解液をジメチルアセドアミド30質量%の水溶液中に吐出して凝固させた。その後、6.5倍の湿熱延伸を行い、沸水中で洗浄して繊維を得た。前記繊維に油剤を付与してトウを作製し、表面温度が150℃の複数の乾燥ロールでトウを乾燥させた。その後、熱緩和処理を施し、クリンパーを用いて、12山/25mmの機械捲縮を付与し、繊維の長さが38mmになるようにトウをカットして短繊維Aを得た。さらに、得られた短繊維Aを、ポリシロキサン(マーポシルコートEX-G5:松本油脂製薬株式会社製)を含む水溶液中に投入し、その後乾燥して、単繊維繊度0.1dtex、ポリシロキサンの繊維に対する付着量が3.0質量%の短繊維Aを得た(短繊維A1)。
その後、得られた短繊維A1:50質量%と、短繊維Bとして、アクリル繊維(三菱レイヨン(株)製、品番:H815、単繊維繊度:2.2dtex、繊維長:51mm)50質量%とを混綿機で混合し、開繊機を通過させた後に、カード機で混ぜて、詰め綿を得た。
得られた詰め綿を用いて、嵩高性評価、柔軟性評価及び保温性評価を行った。評価結果を表1に示す。
短繊維A1と混合する短繊維Bとその割合を、表1に示す通りに変更した以外は、実施例1と同様の方法にて詰め綿を製造した。得られた詰め綿の嵩高性評価、柔軟性評価の結果を表1に示す。尚、表1に記載の各繊維の詳細は以下の通りである。
・Y字型形状アクリル繊維(三菱レイヨン(株)製、品番:HS42、単繊維繊度:6.6dtex、繊維長:38mm)
・サイドバイサイド型アクリル繊維(三菱レイヨン(株)製、品番:MW66、単繊維繊度:2.2dtex、繊維長:38mm)
アクリロニトリル単位95質量%、酢酸ビニル単位5質量%からなる共重合体を、ジメチルアセトアミドに前記共重合体の濃度が15質量%となるように溶解させた。その後、孔径0.015mmで丸型吐出孔を持つノズルを用いて、ジメチルアセドアミド30質量%の水溶液中に吐出して凝固させた。その後6.0倍の湿熱延伸を行い、沸水中で洗浄して繊維を得た。前記繊維に油剤を付与してトウを作製し、表面温度が150℃の複数の乾燥ロールでトウを乾燥させた。その後、熱緩和処理を施し、クリンパーを用いて、15山/25mmの機械捲縮(二次元の山谷型形状)を付与し、長さが38mmになるようにトウをカットして短繊維Aを得た。さらに、得られた短繊維Aを、ポリシロキサン(マーポシルコートEX-G5:松本油脂製薬株式会社製)を含む水溶液中に投入し、その後乾燥して、単繊維繊度0.005dtex、ポリシロキサンの繊維に対する付着量が3.0質量%の短繊維Aを得た(短繊維A2)。
その後、得られた短繊維A2:50質量%と、短繊維Bとして、アクリル繊維(三菱レイヨン(株)製、品番:H815、単繊維繊度:2.2dtex、繊維長:51mm)50質量%とを混綿機で混合し、開繊機を通過させた後に、カード機で混ぜて、詰め綿を得た。得られた詰め綿の嵩高性評価、柔軟性評価の結果を表1に示す。
短繊維A2と混合する短繊維Bとその割合を、表1に示す通りに変更した以外は、実施例10と同様の方法にて詰め綿を製造した。得られた詰め綿の嵩高性評価、柔軟性評価の結果を表1および表2に示す。
実施例1の短繊維A1の長さと短繊維Bを表2の通りにした以外は、実施例1と同様の方法にて詰め綿を製造した。得られた詰め綿の嵩高性評価、柔軟性評価の結果を表2に示す。
実施例1の短繊維A1について、ポリシロキサン付着量と短繊維Bを表2の通りに変更した以外は、実施例1と同様の方法にて詰め綿を製造した。得られた詰め綿の嵩高性評価、柔軟性評価の結果を表2に示す。
短繊維Aとして、アクリル繊維(三菱レイヨン(株)製、品番:H616、単繊維繊度0.8dtex、繊維長38mm、短繊維A3)50質量%と、短繊維Bとして、アクリル繊維(三菱レイヨン(株)製、品番:H815、単繊維繊度:2.2dtex、繊維長:51mm)50質量%とを混綿機で混合し、開繊機を通過させた後、カード機で混ぜて詰め綿を得た。
得られた詰め綿の嵩高性評価及び保温性の結果を表2に示す。
短繊維A3と混合する短繊維Bの割合を、表2に示す通りに変更した以外は、実施例19と同様の方法にて詰め綿を製造した。得られた詰め綿の嵩高性評価及び保温性の結果を表2に示す。
短繊維A3と混合する短繊維Bの種類を、表2に示す通りに変更した以外は、実施例19と同様の方法にて詰め綿を製造した。得られた詰め綿の嵩高性評価及び保温性の結果を表2に示す。
尚、表2に記載の十字型形状アクリル繊維、扁平型形状アクリル繊維の詳細は以下の通りである。
・十字型形状アクリル繊維(三菱レイヨン(株)製、単繊維繊度:2.2dtex、繊維長:38mm)
・扁平型形状アクリル繊維(三菱レイヨン(株)製、品番:HS08、単繊維繊度:17dtex、繊維長:38mm)
短繊維Aを、アクリル繊維(三菱レイヨン(株)製、品番:H616、単繊維繊度1.0dtex、繊維長38mm、短繊維A4)を用い、短繊維Bとして、サイドバイサイド型アクリル繊維(三菱レイヨン(株)製、品番:MW66、単繊維繊度:2.2dtex、繊維長:38mm)を用いた以外は、実施例19と同様の方法にて詰め綿を製造した。得られた詰め綿の嵩高性評価、柔軟性評価の結果を表2に示す。
表3に記載した繊維を用いた以外は、実施例1と同様の方法で詰め綿を製造した。得られた詰め綿の嵩高性評価、柔軟性評価及び保温性の結果を表3に示す。
アクリル繊維(三菱レイヨン(株)製、品番:H616、単繊維繊度1.0dtex、繊維長38mm)100質量%を、開繊機を通過させた後、カード機で混ぜて詰め綿を得た。
得られた詰め綿は、嵩高性は良好であったが、圧縮回復性が低いと考えられる。
以下の繊維を用いて得られた詰め綿の、嵩高性評価、保温性評価の結果を表3に示す。
・プリマロフト(ALBANY社製、ポリエステル繊維100%)
プリマロフトは、中空太繊度ポリエステル繊維と細繊度ポリエステル繊維で構成されており、保温率は高いが、嵩高性に劣るのもであった。
・エアーフレイク(倉敷紡績社製、ポリエステルとナイロンの複合綿繊維)
長繊維で構成され、芯糸と芯糸よりも長い花糸を含み、芯糸と花糸は交絡により一体化しており、花糸は開繊されてループ状繊維を形成している詰め物用交絡糸であり、花糸は中空の繊維である。
エアーフレイクを用いて得られた詰め綿は、嵩高性、保温性とも良好であるが、長繊維で繋がっているため詰め綿として均一に配することが難しく、芯糸があるため、風合いに劣るものであった。
短繊維A4のみを用いた以外は実施例24と同様の方法にて詰め綿を製造した。得られた詰め綿は、保温性には優れるものの、嵩高性に劣っていた。
(参考例5)
表3に記載した繊維を用いた以外は、実施例1と同様の方法で詰め綿を製造した。得られた詰め綿は、嵩高性に劣っていた。
Claims (12)
- 単繊維繊度aが0.001dtex~1.0dtexの短繊維Aを、詰め綿の総質量に対して5~90質量%含み、
1辺が45cmの正方形の綿100%の生地を2枚重ねて作成した袋状のカバーの中に、前記詰め綿を100g略均等に詰めた後、前記袋状カバーの開口部を縫い合わせて得られた試験片を、JIS L1096 保温性A法(恒温法):2010に準拠して測定した保温率が、89%以上である、詰め綿。 - 嵩高性が180mm以上である、請求項1に記載の詰め綿。
- 前記保温率が93%以上である、請求項1又は2に記載の詰め綿。
- 単繊維繊度bが0.8dtex~20dtexの短繊維Bを、前記詰め綿の総質量に対して10~95質量%含み、
前記短繊維Aの単繊維繊度aと前記短繊維Bの単繊維繊度bとの関係がb≧1.5aを満たす請求項1~3のいずれか一項に記載の詰め綿。 - 前記短繊維Bの単繊維繊度bが、1.3~2.8dtexである請求項4に記載の詰め綿。
- 前記詰め綿1g中に存在するネップの数が30個以上である請求項1~5のいずれか一項に記載の詰め綿。
- 前記短繊維Aの単繊維繊度aが0.001dtex以上0.4dtex未満である請求項1~6のいずれか一項に記載の詰め綿。
- 前記短繊維Aの単繊維繊度aが0.4dtex以上1.0dtex以下である請求項1~5のいずれか一項に記載の詰め綿。
- 前記短繊維Aの長さが、20~60mmであり、前記短繊維Bの長さが20~60mmである、請求項1~8のいずれか一項に記載の詰め綿。
- ポリシロキサンが前記短繊維Aに、前記短繊維Aの総質量に対して、0.1~15.0質量%付着している、請求項1~9のいずれか一項に記載の詰め綿。
- 前記短繊維Aが、アクリル繊維である、請求項1~10のいずれか一項に記載の詰め綿。
- 熱接着性短繊維を、前記詰め綿の総質量に対して5~10質量%含み、前記熱接着性短繊維の少なくとも一部は、前記短繊維Aに接着している、請求項1~11のいずれか一項に記載の詰め綿。
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- 2015-05-08 US US15/308,691 patent/US20170191196A1/en not_active Abandoned
- 2015-05-08 CN CN201580020288.1A patent/CN106232887B/zh active Active
- 2015-05-08 WO PCT/JP2015/063312 patent/WO2015170741A1/ja active Application Filing
- 2015-05-08 KR KR1020167028155A patent/KR101862966B1/ko active IP Right Grant
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPWO2018074544A1 (ja) * | 2016-10-19 | 2018-10-25 | 三菱ケミカル株式会社 | 繊維及び詰め綿 |
CN109844191A (zh) * | 2016-10-19 | 2019-06-04 | 三菱化学株式会社 | 纤维和填充物 |
CN109844191B (zh) * | 2016-10-19 | 2022-04-05 | 三菱化学株式会社 | 纤维和填充物 |
WO2018113764A1 (zh) * | 2016-12-23 | 2018-06-28 | 东丽纤维研究所(中国)有限公司 | 一种填充物体 |
JP2020172726A (ja) * | 2019-04-12 | 2020-10-22 | 帝人フロンティア株式会社 | 衣料用中綿 |
Also Published As
Publication number | Publication date |
---|---|
EP3141647A1 (en) | 2017-03-15 |
JP6575545B2 (ja) | 2019-09-18 |
KR20160131105A (ko) | 2016-11-15 |
KR101862966B1 (ko) | 2018-05-31 |
EP3141647A4 (en) | 2017-05-17 |
US20170191196A1 (en) | 2017-07-06 |
CN106232887B (zh) | 2018-11-20 |
JP2017089092A (ja) | 2017-05-25 |
CN106232887A (zh) | 2016-12-14 |
JPWO2015170741A1 (ja) | 2017-04-20 |
JP6103059B2 (ja) | 2017-03-29 |
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