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WO2018061369A1 - Nappe ouatée - Google Patents

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Publication number
WO2018061369A1
WO2018061369A1 PCT/JP2017/024130 JP2017024130W WO2018061369A1 WO 2018061369 A1 WO2018061369 A1 WO 2018061369A1 JP 2017024130 W JP2017024130 W JP 2017024130W WO 2018061369 A1 WO2018061369 A1 WO 2018061369A1
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WO
WIPO (PCT)
Prior art keywords
fiber
salt type
batting
cross
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/024130
Other languages
English (en)
Japanese (ja)
Inventor
宏 小野
成明 中村
正雄 家野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Exlan Co Ltd
Toyobo Co Ltd
Original Assignee
Japan Exlan Co Ltd
Toyobo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Exlan Co Ltd, Toyobo Co Ltd filed Critical Japan Exlan Co Ltd
Priority to JP2017551729A priority Critical patent/JP6247801B1/ja
Publication of WO2018061369A1 publication Critical patent/WO2018061369A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/43832—Composite fibres side-by-side
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/08—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyacrylonitrile as constituent
    • 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
    • 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
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • D—TEXTILES; PAPER
    • 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
    • D06M11/63—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with hydroxylamine or hydrazine

Definitions

  • the present invention relates to a batting suitable for bedding and clothing, which has a high level of moisture absorption exothermicity that brings about warm air with low humidity and bulkiness that brings about heat retention, and can realize a warm environment at an early stage.
  • ⁇ Filling is generally used in a futon, cushion or clothing that comes in contact with the skin.
  • a futon it is important to obtain a comfortable bed temperature of a comfortable temperature and humidity.
  • general-purpose fibers such as polyester, and those using cross-linked acrylic moisture-absorbing and releasing fibers (see Patent Document 1) have been proposed.
  • batting using general-purpose fibers such as polyester is sufficiently high in bulkiness and can maintain high heat retention by containing a lot of air, but it absorbs the moisture in the captured air and converts it to comfortable air There was a problem that could not be done.
  • the batting using the conventional Na salt type cross-linked acrylic moisture-absorbing / releasing fiber can be changed to air comfortable for the human body by absorbing moisture from the air contained in the batting and generating heat, Due to the low bulkiness, there was a problem with the sustainability of the heat retention effect.
  • the applicant has proposed a batting that further contains Mg salt type and / or Ca salt type cross-linked polyacrylate fibers in the batting containing polyester fibers (see Patent Document 2).
  • This batting has moisture absorption exothermic property and bulkiness at a high level, and can be comfortably used for bedding and clothing.
  • Mg salt type and / or Ca salt type cross-linked polyacrylate fibers have a problem that the user cannot immediately feel the warmth because the moisture absorption exothermic property does not rise to a high temperature in a short time. There was room for further improvements in materials.
  • the present invention was devised in order to solve the problems of the prior art including Patent Document 2, and has an initial temperature rising speed with respect to moisture exothermicity, and also has a high level of bulkiness.
  • An object of the present invention is to provide a batting suitable for bedding and clothing, which can realize a warm environment comfortable to the human body at an early stage.
  • the present inventor further increases the initial temperature rise due to hygroscopic heat generation while maintaining the bulkiness of the Mg salt-type and Ca salt-type crosslinked polyacrylate fibers of Patent Document 2.
  • Na salt type or K salt type is adopted as the cross-linked polyacrylate fiber to increase the initial temperature rise due to hygroscopic heat generation, and the bulkiness which is a drawback of Na salt type or K salt type
  • the graph which shows transition of the temperature for every elapsed time of 100% filling of Na salt type or Mg salt type cross-linked polyacrylate fiber measured according to the measurement method and conditions of ISO18782: 2015 is shown in FIG.
  • the Na salt type is superior to the Mg salt type in terms of initial rise temperature based on hygroscopic heat generation.
  • the batting of the present invention can not be achieved with conventional batting using general-purpose fibers such as polyester or cross-linked polyacrylate fibers such as Mg salt type and Ca salt type. Has the effect of achieving both at a high level. Such an effect is brought about not only by the bulkiness of the polyester fiber, but also by the high bulkiness of the specific composite structure of the Na salt type or K salt type cross-linked polyacrylate fiber and the hygroscopic exothermic property that exhibits a high temperature at an early stage.
  • the batting of the present invention can quickly change a large amount of moist air taken in due to its high bulkiness to warm air with low humidity due to quick moisture absorption and heat generation, so that the bedding batting, autumn / winter outdoor When used as a cotton pad for clothing, the wearer can feel warmth and heat retention at an extremely fast stage.
  • the batting of the present invention contains moist air at a low humidity at an early stage by containing polyester fiber and a specific composite structure of Na salt type and / or K salt type cross-linked polyacrylate fiber in a specific ratio. It is characterized by a high level of moisture absorption exothermicity that converts to warm air and bulkiness that provides sustained heat retention.
  • polyester fiber used in the present invention a polyester polymer usually used for cotton can be used, but polyethylene terephthalate fiber is preferable.
  • the form include regular products that are not specially processed, conjugate products, hollow products, conjugate hollow products, etc., in order to obtain high bulkiness as a batting containing a crosslinked polyacrylate fiber having hygroscopicity. Regular products that are not specially processed are preferred.
  • the polyester fiber preferably has a single fiber fineness of 5 to 18 dtex, more preferably 5 to 14 dtex.
  • the fiber length is preferably 40 to 100 mm, and more preferably 50 to 80 mm.
  • the single fiber elastic modulus of the polyester fiber is preferably 28 cN / dtex or more, and more preferably 30 cN / dtex or more for high bulkiness of the batting.
  • the upper limit of the single fiber elastic modulus of the polyester fiber is not limited, but is practically about 100 cN / dtex.
  • a polyester fiber having a high single fiber elastic modulus can be obtained by using, for example, polyethylene terephthalate or polyethylene naphthalate.
  • the polyester fiber content in the batting of the present invention is 40 to 90% by weight, preferably 45 to 85% by weight, more preferably 50 to 80% by weight.
  • the polyester fiber content in the batting of the present invention is 40 to 90% by weight, preferably 45 to 85% by weight, more preferably 50 to 80% by weight.
  • the cross-linked polyacrylate fiber used in the present invention needs to be a monovalent metal Na salt type and / or K salt type.
  • Each of the Na salt type and the K salt type may be used alone, or both types may be used in combination.
  • Mg salt type or Ca salt type divalent metal salt type has high moisture absorption exothermic property and moderately high bulkiness, but since the initial rise temperature during moisture absorption exotherm is low, warmth and heat retention can be achieved early. There is a problem if you want to feel it.
  • other divalent metal salt types such as a Zn salt type are not preferable because they are inferior in hygroscopic heat generation and a comfortable environment cannot be obtained.
  • the monovalent metal salt type of the Na salt type or the K salt type has a high initial temperature rise during the hygroscopic heat generation, and thus can feel warmth at an early stage.
  • the Na salt type or the K salt type has a special composite structure as described later in the present invention because the bulkiness is insufficient in the normal fiber form and the heat retention cannot be maintained.
  • the Na salt type and / or K salt type cross-linked polyacrylate fiber used in the present invention has two types of cross-linking structure and a surface layer portion having a Na salt type and / or K salt type carboxyl group, and different acrylonitrile contents. It is a composite fiber composed of a central part of a side-by-side structure composed of an acrylonitrile-based polymer, and the area occupied by the surface layer part in the cross section of the composite fiber needs to be 5% or more and less than 20%.
  • the cross-linked polyacrylate fiber of the present invention has a composite structure consisting of a central portion and a surface layer portion around the center portion, and contributes to an improvement in bulkiness by creating a hard and elastic structure in the central portion.
  • the crosslinked polyacrylate fiber of the present invention can have 3.5 mmol / g or more with respect to the total amount of carboxyl groups, and can be up to about 10 mmol / g. Moreover, regarding the moisture absorption rate prescribed
  • the crosslinked polyacrylate fiber of the present invention uses an acrylonitrile fiber as a raw fiber, and the acrylonitrile fiber can be produced from an acrylonitrile polymer by a known method.
  • the acrylonitrile polymer preferably has an acrylonitrile content of 50% by weight or more, more preferably 80% by weight or more.
  • the crosslinked structure can be introduced into the fiber by reacting the nitrile group of the acrylonitrile polymer with a nitrogen-containing compound such as a hydrazine compound.
  • the crosslinked polyacrylate fiber of the present invention has a composite structure in which two acrylonitrile polymers having different acrylonitrile contents are joined side by side.
  • the difference in acrylonitrile content between the two acrylonitrile polymers is preferably 1 to 5% by weight
  • the composite ratio of the two acrylonitrile polymers is It is preferably 30/70 to 70/30 (weight ratio).
  • a cross-linked structure is introduced into the surface layer of the fiber having a composite structure as described above.
  • a crosslinking agent such as a nitrogen-containing compound.
  • the nitrogen-containing compound it is preferable to use an amino compound or a hydrazine compound having two or more primary amino groups.
  • a hydrolysis treatment with an alkali metal compound is performed to convert the nitrile group in the surface layer portion into a carboxyl group.
  • carboxyl groups include Na salt type or K salt type salt type carboxyl groups and H type carboxyl groups, and it is preferable to increase the number of salt type carboxyl groups.
  • the hydrolysis treatment is performed under a milder condition of an alkali metal compound having a lower concentration than before, and the subsequent acid treatment is performed under severer conditions at a higher temperature than in the past.
  • the crosslinked polyacrylate fiber of the present invention can have a structure in which more carboxyl groups are present in the narrow surface layer than in the past and the acrylonitrile polymer is preserved in the center.
  • the area occupied by the surface layer in the cross section is 5% or more and less than 20%, preferably 10% or more and less than 20%.
  • the area of the surface layer part is measured by the method described in Examples described later.
  • the area occupied by the surface layer portion of the fiber of the present invention is very small, and the area of the central portion where almost no carboxyl group is present occupies a large area. Therefore, the bulk of the fiber due to moisture absorption and the adoption of Na salt type or K salt type High bulkiness can be achieved without the effect of lowering the properties.
  • the Na salt-type or K-salt type cross-linked polyacrylate fiber has a high moisture absorption exothermic property (particularly, an initial rise temperature) as compared with a divalent metal salt such as an Mg salt type.
  • a divalent metal salt such as an Mg salt type.
  • the content of the Na salt type or K salt type cross-linked polyacrylate fiber in the batting of the present invention is 10 to 60% by weight, preferably 15 to 55% by weight, more preferably 20 to 50% by weight.
  • the Na salt type or K salt type cross-linked polyacrylate fiber preferably has a single fiber fineness of 5 to 20 dtex, more preferably 5 to 15 dtex.
  • the fiber length is preferably 20 to 100 mm, more preferably 30 to 80 mm. Since the Na salt type or K salt type cross-linked polyacrylate fiber adopts the above-mentioned special structure, the area of the center portion of the hard elasticity is increased as much as possible especially in the cross-sectional shape, and moisture absorption is performed. Since the structure that reduces the area of the surface layer as much as possible is adopted, the bulkiness is quite high. Therefore, the Na salt type or K salt type cross-linked polyacrylate fiber can have a high bulkiness equivalent to or higher than that of conventionally used Mg salt type or Ca salt type.
  • the batting of the present invention contains a specific amount or more of the above-mentioned specially-structured Na salt type and / or K salt type cross-linked polyacrylate fiber together with the polyester fiber as described above. Moisture absorption in the range of 6.0 to 40% can easily be achieved within 5% under the RH environment. In particular, the batting of the present invention can realize the moisture absorption exothermic effect (high temperature rise) by the crosslinked polyacrylate fiber within the first 5 minutes when the human skin comes into contact.
  • the batting of the present invention contains a specific amount or more of the above-mentioned specially-structured Na salt type and / or K salt type cross-linked polyacrylate fiber together with the polyester fiber as described above, it is bulky.
  • a specific volume in the range of 50-100 cm 3 / g can be achieved as an index.
  • Such a high bulkiness is brought about by the high bulkiness of both the Na salt type or K salt type crosslinked polyacrylate fiber and polyester fiber having a special composite structure.
  • the specific volume is less than 50 cm 3 / g, heat retention may be insufficient because sufficient air is not taken in. If the specific volume is larger than 100 cm 3 / g, the shape may be easily lost by applying a small amount of force, and the shape retention may be insufficient.
  • the batting of the present invention contains a specific amount or more of the Na salt type and / or K salt type cross-linked polyacrylate fiber having the above-mentioned special structure together with the polyester fiber as described above.
  • the bed temperature measured at an early stage 5 minutes after the start of sweating after 10 minutes under conditions of 15 ° C. and 50% RH is 30 ° C. or higher (the upper limit is not limited, but in reality 36 ° C. or lower) )
  • the bed humidity can be set to 70% or less (the lower limit is not limited, but in reality it is 20% or more).
  • the method for producing the batting of the present invention is not particularly limited, and a conventionally known method for producing batting can be applied.
  • a method for producing batting it is possible to apply a method in which raw cotton is preliminarily defibrated and mixed with a defibrator and then processed into a web shape with a card machine.
  • a process of entanglement of fibers such as a needle punch or a water punch, and an interfiber bonding process using a heat sealing resin may be added.
  • the batting of the present invention that has been described above has a comfort of an early low-humidity warmth that has not been heretofore, because it has both moisture-absorbing exothermic properties that can be felt early and high bulkiness. For this reason, bedding products (comforters, mattresses, pillows, etc.) or outer garments for autumn / winter using the batting of the present invention quickly become warm by adsorbing moisture released from the human body and generating heat at a high temperature at an early stage, Further, it is possible to continuously feel the warmth by the heat retention due to the high bulkiness.
  • the sweating simulation device includes a heat-producing sweating mechanism comprising a substrate having a sweating hole and a heat-producing body, a water-feeding mechanism for supplying water to the sweating hole, a heat-producing control mechanism for controlling the temperature of the heat-producing body, and temperature and humidity.
  • the substrate is made of brass, has an area of 120 cm 2 , is provided with six sweat holes, and is controlled at a constant temperature by a heat-producing body composed of a planar heater.
  • the water supply mechanism uses a tube pump, and sends out a constant amount of water to the sweat holes of the substrate.
  • Simulated skin made of a polyester multifilament woven fabric having a thickness of 0.1 mm is affixed to the surface of the base, whereby water discharged from the perspiration holes is spread on the surface of the base and a sweating state is created.
  • An outer frame having a height of 0.5 cm is provided around the substrate, and the sample can be set at a position 0.5 cm away from the substrate.
  • the temperature / humidity sensor is installed in the space between the substrate and the sample (a futon with a padding), and measures the temperature and humidity of the “space surrounded by the substrate, the sample and the outer frame” when the substrate is sweating. .
  • the futon which put the batting was made using woven fabric of 100% polyester as a side fabric and quilting.
  • the sample fiber is placed in a dyeing bath containing 2.5% cationic dye (Nichilon Black G 200) and 2% acetic acid with respect to the fiber weight, and the bath ratio is 1:80. After being soaked and boiled for 30 minutes, it is washed with water, dehydrated and dried. The obtained dyed fiber is sliced thinly perpendicular to the fiber axis, and the fiber cross section is observed with an optical microscope. At this time, the central portion made of the acrylonitrile-based polymer is dyed black, and the surface layer portion having many carboxyl groups becomes green because the dye is not sufficiently fixed.
  • the fiber diameter (D1) and the diameter (D2) of the center dyed black with the part starting to change from green to black as the boundary are measured, and the surface layer area ratio is calculated by the following formula To do.
  • the average value of the surface layer part area ratio of 10 samples be the surface layer part area ratio of a sample fiber.
  • Surface portion area ratio (%) [ ⁇ (( D1) / 2) 2 ⁇ - ((D2) / 2) 2 ⁇ / ((D1) / 2) 2 ⁇ ] ⁇ 100
  • the raw fiber was subjected to crosslinking introduction treatment and hydrolysis treatment simultaneously in an aqueous solution containing 0.5% by weight of hydrazine hydrate and 1.4% by weight of sodium hydroxide at 100 ° C. for 2 hours to obtain 8% by weight nitric acid.
  • the solution was treated with an aqueous solution at 120 ° C. for 3 hours and washed with water.
  • the obtained fiber is immersed in water, adjusted to pH 9 by adding sodium hydroxide, washed with water, and dried to form a Na salt type crosslinked polyacrylate fiber having a Na salt type carboxyl group (surface layer area 13%) )
  • the details of the obtained cross-linked polyacrylate fiber are shown in Table 1.
  • Na salt type cross-linked polyacrylate fiber (single fiber fineness 5.0 dtex, fiber length 48 mm) and polyester fiber (polyethylene terephthalate fiber, single fiber fineness 7.8 dtex, fiber length 64 mm, single fiber elasticity obtained as described above.
  • a rate of 32 cN / dtex, product number 201-7.8Tx64 of Toray Industries, Inc. was defibrated and mixed to a weight ratio of 30/70 with a preliminary defibrator, and then a batting was made with a card machine. Table 1 shows the composition of the batting and the evaluation results.
  • Example 2 A batting was produced in the same manner as in Example 1 except that the weight ratio of the Na salt type crosslinked polyacrylate fiber and the polyester fiber was changed to 12/88. Table 1 shows the composition of the batting and the evaluation results.
  • Example 3 A batting was produced in the same manner as in Example 1 except that the weight ratio of the Na salt-type crosslinked polyacrylate fiber and the polyester fiber was changed to 20/80. Table 1 shows the composition of the batting and the evaluation results.
  • Example 4 A batting was produced in the same manner as in Example 1 except that the weight ratio of the Na salt-type crosslinked polyacrylate fiber and the polyester fiber was changed to 40/60. Table 1 shows the composition of the batting and the evaluation results.
  • Example 5 A batting was produced in the same manner as in Example 1 except that the weight ratio of the Na salt-type crosslinked polyacrylate fiber and the polyester fiber was changed to 50/50. Table 1 shows the composition of the batting and the evaluation results.
  • Example 6 A K salt type crosslinked polyacrylate fiber (surface area 13%) was obtained by the same method except that potassium hydroxide was used instead of sodium hydroxide added to adjust to pH 9 in Example 1.
  • a batting was produced in the same manner as in Example 1 using this K salt type cross-linked polyacrylate type fiber (single fiber fineness 5.0 dtex, fiber length 48 mm) instead of the Na salt type cross-linked polyacrylate type fiber. Table 1 shows the composition of the batting and the evaluation results.
  • Example 7 In the same manner as in Example 1 except that the concentration of sodium hydroxide used for the crosslinking introduction / hydrolysis treatment was changed from 1.4% by weight to 1.6% by weight, the Na salt-type crosslinked polyacrylate fiber (surface layer area 18 %) was obtained, and batting was made. Table 1 shows the composition of the batting and the evaluation results.
  • Example 8 In the same manner as in Example 1 except that the concentration of sodium hydroxide used for the cross-linking introduction / hydrolysis treatment was changed from 1.4% by weight to 1.2% by weight, Na salt-type cross-linked polyacrylate fiber (surface layer area 8) %) was obtained, and batting was made. Table 1 shows the composition of the batting and the evaluation results.
  • Example 9 A batting was prepared in the same manner as in Example 1 except that the composition of the acrylonitrile polymer Ap was changed to 92% by weight of acrylonitrile and 8% by weight of acrylic acid methyl ester. Table 1 shows the composition of the batting and the evaluation results.
  • Example 10 A batting was produced in the same manner except that the composite ratio (weight ratio) of Ap / Bp was changed from 50/50 to 40/60 in Example 1. Table 1 shows the composition of the batting and the evaluation results.
  • Example 11 Instead of using Na salt type crosslinked polyacrylate fiber and polyester fiber in a weight ratio of 40/60 in Example 4, the same Na salt type crosslinked polyacrylate fiber as in Example 4 and the same polyester fiber and acrylic as in Example 4 were used. Filling was made in the same manner except that fibers (single fiber fineness 4.8 dtex, fiber length 50 mm, single fiber elastic modulus 10 cN / dtex) were used at a weight ratio of 30/60/10. The composition and evaluation results of this batting are shown in Table 1.
  • Example 12 Instead of using Na salt type crosslinked polyacrylate fiber and polyester fiber in a weight ratio of 30/70 in Example 1, the same Na salt type crosslinked polyacrylate fiber as in Example 1 and the same K salt type crosslinked as in Example 6 Filling was made in the same manner except that the polyacrylate fiber and the same polyester fiber as in Example 1 were used in a weight ratio of 15/15/70. The composition and evaluation results of this batting are shown in Table 1.
  • Example 1 A batting was produced in the same manner as in Example 1 except that the weight ratio of the Na salt-type crosslinked polyacrylate fiber and the polyester fiber was changed to 5/95. The composition and evaluation results of this batting are shown in Table 1.
  • Example 2 In the same manner as in Example 1 except that the concentration of sodium hydroxide used for the cross-linking introduction / hydrolysis treatment was changed from 1.4% by weight to 1.8% by weight, Na salt-type cross-linked polyacrylate fiber (surface layer area 25) %) And batting. Table 1 shows the composition of the batting and the evaluation results.
  • the raw fiber was subjected to crosslinking introduction treatment and hydrolysis treatment simultaneously in an aqueous solution containing 0.5% by weight of hydrazine hydrate and 1.4% by weight of sodium hydroxide at 100 ° C. for 2 hours to obtain 8% by weight nitric acid.
  • the solution was treated with an aqueous solution at 120 ° C. for 3 hours and washed with water.
  • the obtained fiber is immersed in water, adjusted to pH 9 by adding sodium hydroxide, and then immersed in an aqueous solution in which magnesium nitrate corresponding to twice the amount of carboxyl groups contained in the fiber is dissolved at 50 ° C. for 1 hour.
  • Example 5 A batting was produced in the same manner as in Example 1 except that 100% by weight of the same polyester fiber as in Example 1 was used. The composition and evaluation results of this batting are shown in Table 1.
  • Example 6 A batting was produced in the same manner as in Example 1 except that 100% by weight of the same acrylic fiber as in Example 11 was used. The composition and evaluation results of this batting are shown in Table 1.
  • the batting of Examples 1 to 12 realizes a high bed temperature and a low bed humidity at an early stage because both high hygroscopicity and high bulkiness (specific volume) are compatible. Can be used very comfortably.
  • Comparative Example 1 with few Na salt-type crosslinked polyacrylate fibers is inferior in hygroscopicity
  • Comparative Example 2 with a large surface layer area of Na salt type crosslinked polyacrylate fibers is inferior in bulkiness
  • Mg salt type Comparative Examples 3 and 4 using a crosslinked polyacrylate fiber had a problem of poor hygroscopicity.
  • the comparative example 5 which uses only a polyester fiber has inferior hygroscopicity
  • the comparative example 6 which uses only an acrylic fiber had a problem in hygroscopicity and bulkiness.
  • the comparative examples having problems in either hygroscopicity and bulkiness cannot be said to be comfortable for humans because none of the comparative examples can create a good environment in the temperature and humidity in the bed.
  • the batting of the present invention has a high moisture absorption exothermic property that can be realized at an early stage and a high bulkiness that brings about heat retention, so that it can be comfortably used in bedding and clothing that touch human skin.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

L'invention fournit une nappe ouatée idéale pour la literie et l'habillement, qui permet d'obtenir rapidement la sensation d'un environnement chaud confortable pour le corps qui présente une vitesse d'élévation de la température initiale en ce qui concerne ses propriétés hygroscopiques et exothermiques, et qui présente des propriétés de voluminisation de niveau élevé. Plus précisément, l'invention concerne une nappe ouatée qui comprend 40 à 90% en masse de fibres polyester, et 10 à 60% en masse de fibres à base de polyacrylate réticulé de type sel Na et/ou sel K. Cette nappe ouatée est caractéristique en ce que les fibres à base de polyacrylate réticulé de type sel Na et/ou sel K, consistent en des fibres composites constitués d'une partie couche superficielle possédant une structure réticulée et un groupe carboxyle de type sel Na et/ou sel K, et d'une partie âme de structure de type côte à côte constituée de polymères à base d'acrylonitrile de deux sortes de teneurs différentes en acrylonitrile. La surface occupée par la partie couche superficielle dans un plan transversal des fibres composites est supérieure ou égale à 5% et inférieure à 20%.
PCT/JP2017/024130 2016-09-29 2017-06-30 Nappe ouatée Ceased WO2018061369A1 (fr)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2018181138A1 (fr) * 2017-03-31 2018-10-04 東洋紡株式会社 Ouate
JP7699300B1 (ja) * 2024-01-31 2025-06-26 美津濃株式会社 中綿用不織布シート、その製造方法及びこれを含む中綿構造体

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116024816A (zh) * 2023-01-09 2023-04-28 深圳市如砥科技有限公司 一种加湿发热性纤维

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536360A (en) * 1978-09-05 1980-03-13 Japan Exlan Co Ltd Novel water-swelling fiber and its production
WO2013002367A1 (fr) * 2011-06-30 2013-01-03 東洋紡株式会社 Nappe ouatée
WO2015041275A1 (fr) * 2013-09-20 2015-03-26 日本エクスラン工業株式会社 Fibre d'acrylate réticulé et structure de fibre contenant ladite fibre d'acrylate réticulé

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536360A (en) * 1978-09-05 1980-03-13 Japan Exlan Co Ltd Novel water-swelling fiber and its production
WO2013002367A1 (fr) * 2011-06-30 2013-01-03 東洋紡株式会社 Nappe ouatée
WO2015041275A1 (fr) * 2013-09-20 2015-03-26 日本エクスラン工業株式会社 Fibre d'acrylate réticulé et structure de fibre contenant ladite fibre d'acrylate réticulé

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018181138A1 (fr) * 2017-03-31 2018-10-04 東洋紡株式会社 Ouate
JPWO2018181138A1 (ja) * 2017-03-31 2020-04-09 東洋紡株式会社 中綿
JP7061292B2 (ja) 2017-03-31 2022-04-28 東洋紡株式会社 中綿
JP7699300B1 (ja) * 2024-01-31 2025-06-26 美津濃株式会社 中綿用不織布シート、その製造方法及びこれを含む中綿構造体

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