Padding and fiber product

Abstract

The present invention addresses the problem of providing: padding which has a soft feel similar to down, which preferably has excellent blowing properties and fiber opening properties, in which unevenness of the padding is unlikely to occur even during use (wearing) of a fiber product or even when a product is washed and dried, and which is suitable for blowing; and a fiber product. Provided as a solution is padding characterized by comprising polyester short fibers that have a silicone component provided thereto and that have a non-regular cross-sectional shape.

Description

Padding and textiles

[0001] The present invention relates to a filling suitable for blowing, which has a soft texture similar to that of feathers, is preferably excellent in blowing properties and openability, and is less likely to become unevenly distributed during use (wearing) of the textile product or even after washing and drying the product, and to a textile product.

[0002] Conventionally, batting, also called wadding, has been proposed in various forms, such as those using irregular cross-section fibers or hollow fibers (see, for example, Patent Documents 1 and 2). It is also known to blow batting made of polyester fibers to which silicone resin has been added to enhance flexibility into the outer fabric using a blow molding machine to produce a textile product (see, for example, Patent Documents 3 to 5).

[0003] However, in conventional fillings, the shape of the staple fibers, crimping properties (especially the degree of crimp and residual crimping), fiber length, etc. were not optimized, and after cutting the fibers, they had to be immediately opened by blowing compressed air. Furthermore, when compressed and packaged for shipping, the bulkiness and elastic recovery properties decrease, which can impair the advantages of the textile product, and the raw cotton had to be subjected to secondary processing (to form granules or tails).

[0004] Furthermore, filling made of polyester fibers to which silicone resin has been added is prone to static electricity, making it difficult to fill using a blow molding machine. Furthermore, textile products using such filling have the problem of the blown filling tending to become uneven. There is also the problem of uneven filling occurring after washing and drying the textile product. If the filling amount is increased compared to feathers to prevent uneven filling, the textile product becomes heavier, so measures to prevent uneven filling must be taken into account in the stitching (such as quilt size and design).

[0005] Furthermore, batting containing a blend of multiple fibers, including polyester fibers to which a silicone resin has been added, has also been proposed, but with such batting, the staple fibers to be blended must be layered and passed through a fiber spreader, and the multiple fibers must be homogenized in advance (for example, Patent Documents 4 to 6).

[0006] Japanese Patent Application Laid-Open No. 2012-214951 Japanese Patent Application Laid-Open No. 2020-70529 Japanese Patent Publication No. 3-46563 Japanese Patent No. 6645421 Japanese Patent No. 6417497 Japanese Patent No. 4821106

[0007] The present invention aims to provide a filling suitable for blowing, which has a soft texture similar to that of feathers, is preferably excellent in blowing properties and openability, and is less likely to become unevenly distributed during use (wearing) of the textile product or even after washing and drying the product, and a textile product.

[0008] The present inventors have conducted extensive research to achieve the above-mentioned objects, and have completed the present invention. Thus, the following inventions are provided. 1. A batting characterized by containing polyester staple fibers containing a silicone-based component and having an irregular cross-sectional shape. 2. The batting according to above 1, wherein the polyester staple fibers are irregular cross-section staple fibers having 2 to 12 radially protruding fins. 3. The batting according to above 1 or 2, wherein the polyester staple fibers have a single fiber fineness of 2 to 10 dtex, a fiber length of 5 to 51 mm, a number of crimps of 6 to 18 / 2.54 cm, a crimp degree of 6 to 14%, and a residual crimp degree of 5 to 12%. 4. The batting according to any one of above 1 to 3, wherein the polyester staple fibers are made of polytrimethylene terephthalate or polyethylene terephthalate. 5. The batting according to any one of above 1 to 4, wherein the batting further contains conductive staple fibers. 6. 10. The textile product according to claim 9, wherein the conductive staple fiber content is 0.5 to 5% by weight relative to the weight of the filling. 11. The textile product according to claim 9, wherein the conductive staple fiber content is 0.5 to 5% by weight relative to the weight of the filling. 12. The textile product according to claim 9, wherein the conductive staple fiber content is 0.5 to 5% by weight relative to the weight of the filling. 13. The textile product according to claim 9, wherein the conductive staple fiber content is 0.5 to 5% by weight relative to the weight of the filling.

[0009] According to the present invention, there are provided fillings and textile products suitable for blowing, which have a soft texture similar to that of feathers, are excellent in blowing properties and opening properties, and are less likely to become unevenly distributed during use (wearing) of the textile product or even after washing and drying the product.

[0010] 1 is an example of a cross-sectional view perpendicular to the fiber axis of a modified cross-section short fiber that can be used in the present invention.

[0011] The embodiments of the present invention will be described in detail below. First, the batting of the present invention is a batting suitable for blowing (hereinafter also referred to as "blow-in batting" or "batting") that has excellent openability, and contains a silicone-based component and polyester staple fibers with an irregular cross-sectional shape. Note that "blow-in" as used in the present invention preferably refers to blowing in air, but may also be done by hand.

[0012] The polyester staple fibers are irregular cross-sectional fibers having an irregular cross-sectional shape. Ordinary round cross-section fibers are not preferred because they have poor dispersibility during blowing. The polyester staple fibers may be polyester staple fibers made of a single component or polyester staple fibers made of multiple components. They may also have spiral, Ω, zigzag, or other crimps. In particular, it is particularly preferred that the irregular cross-sectional shape has 2 to 12 radially protruding fins.

[0013] Here, it is preferable that the polyester staple fiber (hereinafter also referred to as "atypical cross-section staple fiber") has a single fiber cross section perpendicular to the fiber axis, the single fiber cross section having a core portion and fin portions protruding radially from the core portion.

[0014] Usually, immediately after being discharged from a spinneret, the yarn is cooled with an air flow asymmetric with respect to the cross-sectional direction to induce cross-sectional anisotropy in the yarn, and then the yarn is heat-treated to induce three-dimensional spiral or Ω-type crimps. The effect of three-dimensional crimps induced by such anisotropic cooling is unlikely to be achieved unless the fiber cross-sectional shape has a hollow portion. However, the modified cross-section staple fibers have fins protruding radially from the core in the single fiber cross section perpendicular to the fiber axis, and the fins increase the single fiber surface area, resulting in a large difference in shrinkage between the anisotropically cooled surface and the opposite surface, making it easy for three-dimensional crimps (spiral crimps) to be achieved even without a hollow portion.

[0015] The degree of crimp of such three-dimensional crimp (spiral crimp) can be adjusted by adjusting the cooling conditions. For example, by reducing the air velocity or increasing the air temperature to reduce the degree of crimp, the voids formed within and between the individual fibers can provide a texture with excellent softness and moderate elasticity.

[0016] The shape of the core may be any of square, round, triangular, polygonal, etc. Furthermore, the core is preferably hollow in order to facilitate the development of crimp and to increase the degree of irregularity. The shape of such a core may be any of square hollow, round hollow, triangular hollow, polygonal hollow, porous hollow, etc. Furthermore, in order to obtain excellent bulkiness and compression recovery, it is preferable that the hollow core is free of cracks.

[0017] The number of fins radially protruding from the core is preferably 2 to 12 (more preferably 6 to 12, particularly preferably 8 to 10) in order to obtain excellent spreadability. If the number of fins is less than 2, excellent spreadability may not be obtained. Furthermore, if the fins extend in the length direction of the fiber (fiber axis direction), excellent spreadability based on anti-convergence property is obtained, and bulkiness and resilience are easily obtained, which is preferable.

[0018] In the modified cross section staple fibers, when the major diameter of the outermost periphery of a single fiber cross section perpendicular to the fiber axis of the single fiber as shown in Figure 1 is R and the major diameter of the core portion is r, the degree of modification defined by the following formula is preferably 1.2 to 3.0: Degree of modification = R / r R: diameter of a circle circumscribing the cross section perpendicular to the single fiber axis r: diameter of the core portion of the cross section perpendicular to the single fiber axis The diameter of the core portion refers to the diameter of the circle when the core portion in the fiber cross section shapes listed above is circular, or the diameter of the circumscribing circle of the polygon when the core portion has a triangular or higher polygonal shape, or the length of the major axis when the core portion has an elliptical shape.

[0019] If the degree of modification is less than 1.2, the gaps between the fibers may not be able to provide sufficient bulk and openability, and if the degree of modification is more than 3.0, the fins may break or bend when compressed, which may impair performance.

[0020] To produce the modified cross-section staple fibers, as described in JP 2020-70529 A, the shape of the polymer discharge port (shape of the spinneret discharge port) during spinning may be appropriately set. In this case, cooling air may be blown onto the yarn at a position below the spinneret surface during the spinning stage to impart three-dimensional crimping (spiral crimping) by anisotropic cooling. Furthermore, the undrawn yarn obtained by the anisotropic cooling may be drawn and then subjected to a press-type crimper to impart a planar Ω-shaped crimp.

[0021] In the present invention, it is not necessarily the case that the stronger (more) the three-dimensional crimp (spiral crimp), the better, but it is preferable to optimize the modified cross-sectional shape, crimpability, fineness and fiber length.

[0022] The modified cross section staple fiber preferably has a single fiber fineness of 2 to 10 dtex (more preferably 3 to 8 dtex).

[0023] In the modified cross-section staple fiber, if the number of crimps is too small, the bulkiness will be reduced. On the other hand, if the number is too large, the dispersibility of the single fibers may be reduced. That is, there is a risk that the highly cohesive single fibers will form multiple clumps (adductor-like shapes). To obtain excellent dispersibility, the number of crimps is preferably in the range of 6 to 18 crimps / 2.54 cm (inch), more preferably in the range of 7 to 14 crimps / 2.54 cm. The crimp degree (crimp rate) is preferably in the range of 6 to 14%, more preferably in the range of 7 to 10%. The residual crimp degree (residual crimp rate) is preferably in the range of 5 to 12%, more preferably in the range of 6 to 10%.

[0024] If the crimp degree or residual crimp degree is too high, the fibers may become more entangled with each other, which may reduce the dispersibility of the individual fibers. As a result, it may be difficult to obtain a fiber product that has excellent dispersibility (easily opened by external pressure, such as air filling or hand-filling), and a soft texture similar to that of feathers. Such dispersibility affects not only the crimpability of the modified cross-section staple fiber, but also the fiber length (cut length). The longer the fiber length, the higher the pull-out resistance between the individual fibers, which inhibits dispersibility, and the individual fibers tend to bundle (become packed in the adductor muscle shape and maintained as such), making it difficult to achieve bulkiness.

[0025] The fiber length of the modified cross section short fibers is preferably in the range of 5 to 51 mm (more preferably 10 to 38 mm, particularly preferably 10 to 35 mm, and particularly preferably 10 to 20 mm). If the fiber length is short, even if the short fibers are filled by hand-filling or the like without being sufficiently dispersed (still in a clam-like shape), the filled short fibers can be easily dispersed by pressure from above the side fabric (a series of packaging operations such as folding the product) or by opening the package to display the product.

[0026] By satisfying these requirements for irregular cross-section staple fibers (irregular cross-sectional shape, single fiber fineness, crimpability, fiber length), the high void ratio due to the special cross-sectional shape and the effect of the fibers dispersing without bundling can be achieved, resulting in textile products that are densely and evenly packed to every corner, giving them a feather-like feel, air entrapment between fibers, and heat retention.

[0027] Here, the recovery and compressive elasticity properties of the fiber product containing the filling after compression packaging can show different characteristics depending on the type of polyester as follows.

[0028] The polyester forming the modified cross section staple fibers is preferably polyethylene terephthalate (PET) or polytrimethylene terephthalate (PTT). PTT is preferably a PTT homopolymer, a copolymerized PTT containing 90 mol % or more of PTT and 10 mol % or less of other ester repeating units, or a polymer kneaded with 10 mass % or less of a polymer other than PTT. Typical examples of copolymerization components include aromatic dicarboxylic acids such as isophthalic acid and 5-sodium sulfoisophthalic acid, aliphatic dicarboxylic acids such as adipic acid and itaconic acid, and hydroxycarboxylic acids such as hydroxybenzoic acid. Examples of glycol components include ethylene glycol, butylene glycol, and polyethylene glycol. A plurality of these may be copolymerized.

[0029] The PTT may be material-recycled or chemically recycled PTT or PTT made from a monomer component obtained from biomass, i.e., biologically derived materials. The PTT may contain one or more of the following as needed within the scope of the present invention: a micropore-forming agent, a cationic dye-dyeable agent, a coloring inhibitor, a heat stabilizer, a fluorescent whitening agent, a matting agent, a colorant, a moisture absorbent, and inorganic fine particles.

[0030] The modified cross-section staple fibers can be produced, for example, by the following method. First, PTT having an intrinsic viscosity (measured at 35°C using orthochlorophenol as a solvent) of 0.50 to 1.20 dL / g is spun using, for example, a spinneret having the discharge shape schematically shown in Figure 5 of JP-A-2020-70529. Next, preferably, the yarn immediately after being discharged from the spinneret surface is anisotropically cooled by blowing a cooling airflow having a flow rate of 0.4 m / s or more onto one side of the yarn at an angle of ±20 degrees perpendicular to the direction of yarn travel, thereby producing an undrawn yarn having a high degree of cross-sectional anisotropy in birefringence. Next, this undrawn yarn is bundled and drawn, and then subjected to heat treatment in a relaxed state to obtain a fiber having a spontaneously developed spiral three-dimensional crimp. Alternatively, a fiber having a planar Ω-type crimp can be obtained by passing the yarn through a push-type crimper between drawing and heat treatment. In this case, it is preferable to separate the single fibers sufficiently before the relaxation heat treatment. The effect of the fins makes it easy for the fibers to spread apart, and by sufficiently spreading the fibers just before the relaxation heat treatment, it is possible to develop an appropriate spiral three-dimensional crimp or Ω-type crimp, thereby achieving both short fiber dispersion and bulkiness.

[0031] The irregular cross-section staple fibers can be compressed, packed, and shipped in the same way as conventional staple fibers (raw cotton). After the compressed and packed staple fibers (bale) are unpacked at a sewing factory for producing futons or jackets, the staple fibers (raw cotton) can be blown in without going through the conventional pre-opening and opening processes and methods (such as opening with a roller card), with only weighing and, if necessary, mixing, to produce a filling that combines short fiber dispersion, bulkiness, and bias prevention. In other words, with the irregular cross-section staple fibers, the irregular cross-section staple fibers that have been compressed, packed, and shipped can be unpacked and then produced (blown in) in the same process and method as in the production of feather products.

[0032] In the filling of the present invention, the modified cross-section staple fiber contains a silicone-based component. The silicone-based component may be contained inside the fiber, but is preferably applied to the fiber surface. Specifically, if it is applied as an oil containing a silicone-based component such as polysiloxane, it is preferable because it provides excellent smoothness, excellent dispersion of single fibers, and increases bulkiness and resilience. Furthermore, the oil may contain a lubricant such as mineral oil, an antistatic agent, a surfactant, a sizing agent, a rust inhibitor, a preservative, or an antioxidant. In this case, the amount of oil containing a silicone-based component applied is preferably 0.05 to 2.0 wt % (more preferably 0.08 to 0.5 wt %) based on the weight of the fiber.

[0033] In addition to the modified cross-section staple fibers, the filling of the present invention may contain polyester staple fibers consisting of multiple components, polyester staple fibers consisting of a single component having spiral or Ω-type crimps, conductive staple fibers, down, feathers, etc.

[0034] Polyester staple fibers consisting of multiple components have spiral crimps, so they can provide the filling with both the soft feel and resilience that are characteristic of feathers. Single-component polyester staple fibers with spiral or Ω-type crimps can also be used to create a similar feather-like filling by balancing the fineness and crimp degree. It is preferable to incorporate both multi-component polyester staple fibers and single-component polyester staple fibers with spiral or Ω-type crimps into the filling to impart functionality and adjust the feather-like feel and resilience.

[0035] Here, the polyester staple fiber composed of multiple components is preferably a conjugated fiber in which two components are bonded together in a side-by-side or eccentric sheath-core configuration. Examples of the two components include polyester / polyester and polyester / nylon. More specifically, combinations such as polytrimethylene terephthalate / polytrimethylene terephthalate, polytrimethylene terephthalate / polyethylene terephthalate, polyethylene terephthalate / polyethylene terephthalate, polybutylene terephthalate / polytrimethylene terephthalate, and polybutylene terephthalate / polyethylene terephthalate are preferred. In this case, it is preferable to make the intrinsic viscosities different from each other. Among these, a side-by-side or eccentric sheath-core conjugated fiber in which at least one component is polytrimethylene terephthalate is preferred.

[0036] The polyester staple fibers made of a single component and having spiral or Ω-shaped crimps may be those known in the art, which are produced by blowing cooling air onto the yarn at a position below the spinneret surface in the spinning stage, in the same manner as the anisotropic cooling of the modified cross-section staple fibers. In this case, the cross-sectional shape of the fiber is not particularly limited, and may be round solid, round hollow, triangular hollow, porous hollow, etc.

[0037] In addition, in polyester staple fibers consisting of multiple components and polyester staple fibers consisting of a single component having spiral or Ω-type crimps, the single fiber fineness is preferably within the range of 3 to 8 dtex. Furthermore, the fiber length is more preferably within the range of 5 to 51 mm (more preferably 10 to 38 mm, even more preferably 10 to 32 mm, and particularly preferably 10 to 20 mm). The shorter the fiber length, the easier it is to open and blow in, just like feathers. In the case of a down comforter, feathers filled into the cover flutter in the cover and are filled while being opened. Fiber lengths of 38 mm or less allow the filling to occur in the same way as feathers. Fiber lengths of 20 mm or less are particularly preferred, as they flutter in the same way as feathers.

[0038] The filling of the present invention preferably further contains conductive short fibers to improve the dispersion of the filling. Incorporating conductive short fibers into the filling can prevent static electricity and prevent unevenness during the blowing process and in textile products. Conventionally, filling product fabrics or outer fabrics (e.g., 100% PET, a polyester-cotton blend, or 100% cotton) with silicone-added filling has been associated with the problem of unevenness due to static electricity. Therefore, to prevent unevenness and a decrease in heat retention due to unevenness, it was necessary to fill the filling at a rate 1.2 times or more higher than that of feathers to prevent unevenness and maintain the heat retention effect and texture of the product. Incorporating conductive short fibers into the filling can solve this problem, allowing the air coexisting with the filling to contribute to the heat retention effect as an insulating material, as with feathers. Furthermore, the same heat retention effect as feather products can be achieved without increasing the filling volume. Furthermore, the texture of the product is improved and unevenness of the filling can be prevented. In particular, in product production processes under low-humidity environments, silicone-added fibers are prone to static electricity, which can cause variations in fiber weight or prevent the entire weight from being blown in. Furthermore, there are also problems such as difficulty in producing products in accordance with textile product quality labeling regulations and the tendency for the filling to become unevenly distributed even after blowing in. However, these problems can be solved by incorporating conductive short fibers into the filling.

[0039] The mixing ratio of the conductive staple fibers is preferably 0.5 to 5% by weight relative to the weight of the filling. Furthermore, the conductive fibers may be blended or interwoven into the futon fabric (such as the cover), and a mixing ratio of 0.5 to 5% by weight is sufficient. However, when conductive fibers are used in the fabric, it is necessary to satisfy the conventional requirements for futon fabric (color, pattern, breathability, tear strength, texture, etc.), so it is preferable to include the conductive staple fibers in the batting.

[0040] The conductive short fibers are preferably fibers containing at least one of carbon black, conductive titanium oxide, conductive whiskers, and carbon nanotubes as a conductor.

[0041] The conductive staple fiber may have a structure in which the entire fiber is made of conductive parts, or the non-conductive and conductive parts may have a cross-sectional shape such as sheath-core, sandwich, or eccentric. Although better antistatic properties are obtained when the conductive parts are exposed on the surface, the exposed conductive parts are black, so the conductive parts do not necessarily have to be exposed on the surface. For example, when the conductive staple fiber has a sheath-core structure, the core may be the conductive part.

[0042] The resins forming the conductive and non-conductive portions are not particularly limited as long as they have fiber-forming properties. Specific examples of nylon resins include nylon 6, nylon 11, nylon 12, and nylon 66. Examples of polyester resins include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polycyclohexane terephthalate, copolymers thereof, and copolymers in which part of the acid component (terephthalic acid) is replaced with isophthalic acid, as well as acrylic resins.

[0043] For example, examples of polyester-based antistatic fibers (conductive yarns) include Beltron 33T / 6-BR1 (trade name) manufactured by KB Seiren Co., Ltd., examples of nylon-based antistatic fibers (conductive yarns) include Beltron 22T / 3-9R1 (trade name) manufactured by KB Seiren Co., Ltd., examples of metal conductive yarns include stainless steel fibers (for example, manufactured by Ken-A Co., Ltd.), and examples of antistatic acrylic fibers (acrylic conductive yarns) include Corebrid B (trade name) manufactured by Mitsubishi Chemical Corporation. Noschok (FCD-20-4 (trade name)) manufactured by ASCEND is also preferred.

[0044] In the conductive staple fibers, the single fiber fineness is preferably in the range of 1 to 10 dtex (more preferably 1 to 6 dtex). The fiber length is preferably in the range of 1 to 38 mm (more preferably 2 to 20 mm) in terms of antistatic properties, single fiber dispersion, and blended cotton uniformity. A long fiber length is not necessarily unsuitable as long as it does not impede the dispersion of single fibers and the desired antistatic effect is obtained. A shorter fiber length is more advantageous in terms of antistatic effect. For example, when the fiber length for measuring conductivity is 100 mm and the fiber cross-sectional resistance at an applied voltage of 0.5 kV is about 10 ７ (Ω / cm), if the fiber length is 50 mm, it is about 10 ６ In view of the antistatic effect of the conductive staple fibers, the dispersion of the single fibers, and the blendability with the modified cross section staple fibers, the fiber length is preferably in the range of 1 to 38 mm (more preferably 1 to 20 mm).

[0045] Such conductive staple fibers may be crimped or may be straight staple fibers without being crimped, as long as there are no problems with the blendability. In this case, the blending ratio of conductive staple fibers is preferably 0.5 to 5% by weight relative to the weight of the filling. By blending conductive staple fibers, not only is the static electricity suppression effect during blow-in processing excellent, but the static electricity suppression effect of the textile product after filling with filling is also remarkably excellent, and the filling has feather-like dispersibility when worn. Furthermore, not only is the filling less likely to become biased due to external pressure in the textile product, but external pressure also improves the dispersibility of the single fibers of the filling, allowing the maintenance of an excellent texture.

[0046] Conventional blown batting, even when containing silicone-based components, exhibits high crimp (crimp count, crimp degree, residual crimp degree, etc.), and because of the tendency for fibers to bundle together, when blown in as is, filling irregularities occur, resulting in not only surface irregularities in textile products but also bias and reduced heat retention. In contrast, the batting of the present invention, thanks to its configuration, can be dispersed into single fibers and uniformly filled without the pre-opening and fiber-opening processes required for conventional blown batting, and without secondary processing (fiber balls) for blowing. That is, it is dispersed (opened) into single fibers simply by the blow-filling method, just like feathers. Furthermore, by being dispersed and filled like feathers, it produces a textile product with a softness similar to that of feathers. Furthermore, it has the characteristic of trapping a lot of air between the down / feathers (trapping a lot of air between the fibers), just like feathers, and recovers after compression by absorbing a lot of air, resulting in excellent heat retention. Furthermore, the textile product is less likely to become distorted when worn, and is less likely to become distorted when washed and dried. In this case, the heat retention is preferably 85% or more as measured by JIS L1096 8.27 Method A (constant temperature method).

[0047] The filling of the present invention may also be mixed with feathers and filled in. In this case, the feel and texture of feathers are maintained, and the product recovers after compression in a way that allows a large amount of air to be absorbed inside, resulting in a product with reduced unevenness.

[0048] Next, the textile product of the present invention is a textile product obtained by filling a side fabric with the above-mentioned batting. Examples include textile products (fillings) that are blown in with air or textile products (fillings) that are filled into a side fabric by hand. In this case, the polyester staple fibers may be in the form of fiber spheres as described in JP 2024-054940 A. That is, the fibers are opened and mixed before carding, passed through a roller carding machine to obtain a web, and then passed through a device having a blower and a cotton storage box connected by a duct, where the web is passed through the blower and blown into the cotton storage box, where the fibers are entangled and formed into spheres.

[0049] Examples of such textile products include bedding such as futons and pillows, clothing such as jackets, as well as miscellaneous goods such as stuffed toys and cushions, and outdoor textile products such as sleeping bags. Because such textile products contain the padding, they have the soft texture and heat retention properties similar to those of feather duvets, and further have the excellent effect of being less likely to become uneven after washing and drying.

[0050] Next, examples and comparative examples of the present invention will be described in detail, but the present invention is not limited to these. The measurement items during the experiments were measured using the following methods. (1) Fineness: Measured using the method described in JIS L1015-2005 8.5.1 Method A. Count 300 fibers into a set, weigh them, and determine the apparent fineness. From this apparent fineness and the separately measured equilibrium moisture content, the corrected fineness was calculated using the following formula. The average of five corrected finenesses was calculated: F = [(100 + R0) / (100 + RC)] x D, where F: corrected fineness, D: apparent fineness, R0: official moisture content (%) (value specified in Japanese Industrial Standards JIS L0105 4.1), and RC: equilibrium moisture content (%). (2) Fiber length: Measured using the method described in JIS L1015-2005 8.4.1 Method A. (3) Number of crimps, degree of crimp (crimp rate), residual crimp (residual crimp rate) These were measured according to the methods described in JIS L1015-2005 8.12.1 and JIS L1015-2005 8.12.2. (4) Hollow ratio (%) In a photograph of the cross section of a single fiber, the area of ​​the inscribed circle of the core in a cross section perpendicular to the fiber axis of one single fiber and the area of ​​the hollow part of the core were calculated, and the hollow ratio of the single fiber was determined using the following formula. This measurement was performed on five single fibers, and the hollow ratios of the five fibers were averaged to obtain the hollow ratio (%). Hollowness (%) = SA / SB x 100 (%) SA: area of ​​the hollow part of the core part in the cross section perpendicular to the single fiber axis SB: area of ​​the circumscribed circle of the core part in the cross section perpendicular to the single fiber axis (5) Irregularity The cross-sectional shape of the single fiber perpendicular to the fiber axis of the single fiber was observed with a scanning electron microscope (SEM), and calculated from the observed image using the following formula: Irregularity = R / r R: diameter of the circle circumscribed on the cross section perpendicular to the single fiber axis r: diameter of the core part in the cross section perpendicular to the single fiber axis (6) Oil deposition amount (wt%): OPU The weight of the fiber after bone drying before oil treatment (F0) and the weight of the fiber after bone drying after oil treatment (F1) were measured, and calculated using the following formula. OPU (wt%) = (F1 - F0) / F0 x 100 (7) Cross-sectional resistance of conductive staple fiber A 10 cm long conductive thread was measured using a commercially available conductive thread resistance measuring device (ADVANTEST Co., Ltd. Model R8340A). (8) Antistatic property of filling Before filling into a mini-futon, the antistatic property of the filling was measured and evaluated by the following method.12g of filling was placed in an A4-size zippered polyethylene bag, and the front and back of the bag were rubbed by hand for 1 minute (approximately 50 times). The filling was then removed onto a piece of paper and the static electricity was measured using an antistatic tester (Static Electricity Meter FMX-004, manufactured by SIMCO). The filling was removed and the static electricity measured after 1 minute. A value of 1kV or less was rated as ◯, a value of 1.5kV or less was △, and a value of over 1.5kV was ×. (9) Evaluation of Uniformity The uniformity of the mini-futon prototype was evaluated before and after washing. A value of × was used for filling uniformity, and a value of ◯ was used for filling uniformity. The washing process was performed according to the JIS L1930C3M method (tumble drying). (10) Blowing Ability, Spreading Ability, and Touch Blowing ability and spreading ability were evaluated as follows: ◎: blown in while opening and fluttering like feathers; ○: blown in well; △: average; and ×: poor. The texture was evaluated as ◎ if it had a consistent, down-like "softness" (elastic feel), ◯ if it felt like clumps of fibers but had a down-like texture, and △ to ◯ if it felt like clumps of fibers but had a texture less elastic than down. (11) Heat retention (heat retention) Measured using JIS L1096 8.27 Method A (constant temperature method). (12) Skin-fitting of the product The skin-fitting of the product was evaluated as ◎: very good, ○: good, △: average, and ×: poor. (13) Porosity The outer periphery of the cross section perpendicular to the fiber axis was connected with a line, and the inner area of ​​this line was defined as area A and the area of ​​the polymer portion as area B, and the single fiber porosity (%) was calculated using the following formula: Single fiber porosity (%) = (A - B) / A x 100.

[0051] [Examples 1 to 7] For the side fabric, full-dull false twist crimped yarns made of polyethylene terephthalate long fibers at 56 dtex / 72 threads were used as the warp and weft, with a warp density of 160 threads / 2.54 cm, a weft density of 126 threads / 2.54 cm, and a basis weight of 70 g / cm. ２ A plain woven fabric of this type was obtained, and three sides were sewn together with 13 needles / 2.54 cm using polyethylene terephthalate sewing thread of 50 cotton count in accordance with JIS L2511-2006 to form a bag shape of 10 cm in width and width, to prepare a mini futon fabric for evaluation.

[0052] Meanwhile, as shown in Table 1, polytrimethylene terephthalate irregular cross-section staple fibers (as shown in Figure 1) with eight radially protruding fins and a round hollow core, treated with an oil solution mainly composed of polydimethylsiloxane (OPU 0.15%), were used as filling materials. A 30 cm square mini-futon sample was prepared by blowing in the blending ratios shown in Table 1. The polytrimethylene terephthalate irregular cross-section staple fibers and cut conductive fibers were blown into the futon in the proportions shown in Table 1. The polytrimethylene terephthalate irregular cross-section staple fibers and cut conductive fibers were uniformly filled, floating like feathers in the air during blowing. The filling amount of 34.3 g, equivalent to 1.2 kg of filling in a single-size comforter (1.5 x 2.1 m / piece), was blown in. The evaluation results are shown in Table 1.

[0053] [Examples 8 and 9] For the side fabric, full-dull false twist crimped yarns made of polyethylene terephthalate long fibers at 56 dtex / 72 threads were used as the warp and weft, with a warp density of 160 threads / 2.54 cm, a weft density of 126 threads / 2.54 cm, and a basis weight of 70 g / cm. ２ A plain woven fabric of this type was obtained, and three sides were sewn together with polyethylene terephthalate sewing thread of 50 cotton count in accordance with JIS L2511-2006 at 13 stitches / 2.54 cm to form a bag shape of 30 cm length and width, to prepare a mini futon cover for evaluation.

[0054] On the other hand, as shown in Table 1, polyethylene terephthalate irregular cross-section staple fibers (as shown in Figure 1) with eight radially protruding fins and a round hollow core, which have been treated with an oil solution mainly composed of polydimethylsiloxane (OPU 0.15%), were used as filling materials. A 30 cm square mini-futon sample was prepared by blowing in the mixture shown in Table 1. During blowing, the polyethylene terephthalate irregular cross-section staple fibers and conductive staple fibers were mixed. However, Corebrid (trade name), a conductive staple fiber for spinning, had a high crimp count, degree of crimp, and residual crimp, making it difficult to open. However, by optimizing the amount of conductive staple fiber and filling it, it was possible to prevent the polyethylene terephthalate irregular cross-section staple fibers from becoming uneven inside the textile product, resulting in an excellent product. The amount of filling of the batting was 34.3 g, which is equivalent to 1.2 kg of filling of a single-size quilt (1.5 x 2.1 m / piece). The evaluation results are shown in Table 1.

[0055] [Example 10] The procedure of Example 2 was repeated, except that polytrimethylene terephthalate short cross-section fibers with eight radially protruding fins, which had been anisotropically cooled to form an Ω-shaped crimp and had been treated with an oil solution (0.15% OPU) primarily composed of polydimethylsiloxane, were processed into granular cotton by the following method. The filling amount of batting used was 42.9 g, equivalent to 1.5 kg of batting filling in a single-size comforter (1.5 x 2.1 m / piece). The evaluation results are shown in Table 1. (Method of producing granular cotton) Polytrimethylene terephthalate irregular cross-section short fibers having eight radially protruding fins and having Ω-type crimping due to anisotropic cooling and treated with an oil agent mainly composed of polydimethylsiloxane are opened and mixed before carding, then passed through a roller carding machine to obtain a web, which is then passed through a device having a blower and a cotton storage box connected by a duct, and the web is passed through the blower and blown into the cotton storage box, where the fibers are entangled to form granular cotton (spherical bodies).

[0056] [Example 11] In Example 3, Beltron 33T / 6-BR1 (product name) manufactured by KB Seiren Co., Ltd. was used as the non-crimped conductive staple fiber. After cutting it to 5 mm, a 30 cm square mini-futon sample was prepared by blowing it into the mixture shown in Table 2. During blowing, the polytrimethylene terephthalate irregular cross-section staple fiber and the cut conductive fiber were uniformly filled, floating like feathers in the air during blowing. The filling amount of batting was 34.3 g, equivalent to 1.2 kg of batting filling in a single-size comforter (1.5 x 2.1 m / piece). The evaluation results are shown in Table 2.

[0057] [Examples 12 and 13] For the side fabric, full-dull false twist crimped yarns made of polyethylene terephthalate long fibers of 56 dtex / 72 threads were used as the warp and weft, and the warp density was 160 threads / 2.54 cm, the weft density was 126 threads / 2.54 cm, and the basis weight was 70 g / cm. ２ A plain woven fabric of this type was obtained, and three sides were sewn together with polyethylene terephthalate sewing thread of 50 cotton count in accordance with JIS L2511-2006 at 13 stitches / 2.54 cm to form a bag shape of 30 cm length and width, to prepare a mini futon cover for evaluation.

[0058] On the other hand, a 30 cm square mini futon sample was prepared by blowing in polytrimethylene terephthalate irregular cross-section staple fibers (as shown in Figure 1) with an Ω-shaped crimp due to anisotropic cooling, eight radially protruding fins, and a round hollow core, which were treated with an oil solution mainly composed of polydimethylsiloxane, as shown in Table 2. The filling amount of batting was 34.3 g, equivalent to 1.2 kg of filling in a single-size comforter (1.5 x 2.1 m / piece). The evaluation results are shown in Table 2.

[0059] [Example 14] For the side fabric, full-dull false twist crimped yarns made of polyethylene terephthalate long fibers at 56 dtex / 72 threads were used as the warp and weft, with a warp density of 160 threads / 2.54 cm, a weft density of 126 threads / 2.54 cm, and a basis weight of 70 g / cm. ２ A plain woven fabric of this type was obtained, and three sides were sewn together with polyethylene terephthalate sewing thread of 50 cotton count in accordance with JIS L2511-2006 at 13 stitches / 2.54 cm to form a bag shape of 30 cm length and width, to prepare a mini futon cover for evaluation.

[0060] On the other hand, a 30 cm square mini futon sample was prepared by blowing in polyethylene terephthalate irregular cross-section staple fibers (as shown in Figure 1) with an Ω-shaped crimp due to anisotropic cooling, an oil solution mainly composed of polydimethylsiloxane (OPU 0.15%), eight radially protruding fins, and a round hollow core, as shown in Table 2. The filling amount of 34.3 g, equivalent to 1.2 kg of filling in a single-size comforter (1.5 x 2.1 m / piece), was blown in. The evaluation results are shown in Table 2.

[0061] [Comparative Example 1] For the side fabric, full-dull false twist crimped yarns made of polyethylene terephthalate long fibers of 56 dtex / 72 threads were used as the warp and weft, with a warp density of 160 threads / 2.54 cm, a weft density of 126 threads / 2.54 cm, and a basis weight of 70 g / cm. ２ A plain woven fabric of this type was obtained, and three sides were sewn together with polyethylene terephthalate sewing thread of 50 cotton count in accordance with JIS L2511-2006 at 13 stitches / 2.54 cm to form a bag shape of 30 cm length and width, to prepare a mini futon cover for evaluation.

[0062] On the other hand, as shown in Table 2, polytrimethylene terephthalate irregular cross-section staple fibers (as shown in Figure 1) having an Ω-type crimp due to anisotropic cooling, eight radially protruding fins, and a round hollow core were used as the filling material, and the same treatment as in Example 13 was carried out except that 0.3% by weight of a polyether ester-based oil solution was applied. The evaluation results are shown in Table 2.

[0063] [Comparative Example 2] For the side fabric, full-dull false twist crimped yarns made of polyethylene terephthalate long fibers of 56 dtex / 72 threads were used as the warp and weft, with a warp density of 160 threads / 2.54 cm, a weft density of 126 threads / 2.54 cm, and a basis weight of 70 g / cm. ２ A plain woven fabric of this type was obtained, and three sides were sewn together with polyethylene terephthalate sewing thread of 50 cotton count in accordance with JIS L2511-2006 at 13 stitches / 2.54 cm to form a bag shape of 30 cm length and width, to prepare a mini futon cover for evaluation.

[0064] On the other hand, as shown in Table 2, polyethylene terephthalate irregular cross-section staple fibers (as shown in Figure 1) having an Ω-type crimp due to anisotropic cooling, eight radially protruding fins, and a round hollow core were used as the filling material, and the same treatment as in Example 14 was carried out except that 0.3 wt% of a polyether ester-based oil solution was applied. The evaluation results are shown in Table 2.

[0065] [Comparative Example 3] For the side fabric, full-dull false twist crimped yarns made of polyethylene terephthalate long fibers of 56 dtex / 72 threads were used as the warp and weft, with a warp density of 160 threads / 2.54 cm, a weft density of 126 threads / 2.54 cm, and a basis weight of 70 g / cm. ２ A plain woven fabric of this type was obtained, and three sides were sewn together with polyethylene terephthalate sewing thread of 50 cotton count in accordance with JIS L2511-2006 at 13 stitches / 2.54 cm to form a bag shape of 30 cm length and width, to prepare a mini futon cover for evaluation.

[0066] On the other hand, as shown in Table 2, polytrimethylene terephthalate irregular cross-section staple fibers (as shown in Figure 1) having an Ω-type crimp due to anisotropic cooling, eight radially protruding fins, and a round hollow core were used as the filling material, and the same treatment as in Example 6 was carried out except that 0.3 wt% of a polyether ester-based oil solution was applied. The evaluation results are shown in Table 2.

[0067]

[0068]

[0069] According to the present invention, it is possible to obtain a filling suitable for blowing, which has a soft texture similar to that of feathers, is excellent in blowing properties and opening properties, and is less likely to become unevenly distributed during use (wearing) of the textile product or even after washing and drying, and the industrial value of the resulting textile product is extremely great.

Claims

1. A padding characterized by containing a silicone-based component and polyester staple fibers having an irregular cross-sectional shape.

2. The filling according to claim 1, wherein the polyester staple fibers are irregular cross-section staple fibers having 2 to 12 radially protruding fin portions.

3. The filling according to claim 2, wherein the polyester staple fiber has a single fiber fineness of 2 to 10 dtex, a fiber length of 5 to 51 mm, a crimp number of 6 to 18 / 2.54 cm, a crimp degree of 6 to 14%, and a residual crimp degree of 5 to 12%.

4. The batting of claim 2, wherein the polyester staple fibers are made of polytrimethylene terephthalate or polyethylene terephthalate.

5. The batting of claim 1, wherein the batting further comprises conductive staple fibers.

6. The filling according to claim 5, wherein the conductive short fibers are mixed in an amount of 0.5 to 5% by weight based on the weight of the filling.

7. The batting of claim 1, wherein the batting is for blowing.

8. A textile product in which the filling material according to any one of claims 1 to 7 is filled into a side fabric.

9. The textile product according to claim 8, wherein the side fabric contains conductive fibers.

10. The textile product according to claim 9, wherein the conductive fiber content in the side fabric is 0.5 to 5% by weight relative to the weight of the side fabric.

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