Laminate wadding sheet, manufacturing method thereof, and wadding structure using the same

Abstract

To provide a laminate wadding sheet having high bulkiness and a good surface smoothness, excellent in handleability and easily applicable to an existing clothing manufacturing process, and also to provide a manufacturing method thereof and a wadding structure using the same.SOLUTION: A laminate wadding sheet 1 includes a long fiber wadding layer 2 and fiber sheet layers 3a, 3b. The fiber sheet layers 3a, 3b have a basis weight of 5 to 80 g / m2. A long fiber yarn composing the long fiber wadding layer 2 at least includes a core yarn and a filament. The core yarn and the filament are integrated. In the long fiber wadding layer 2, plural long fiber yarns are aligned to form a fiber bundle. One or plural fiber bundles are aligned in parallel in a lengthwise direction. The fiber sheet layers 3a, 3b are laminated and integrated on both sides of the long fiber wadding layer 2.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a laminated padding sheet, a method for producing the same, and a padding structure using the same. [Background technology]

[0002] The feathers used to fill feather products such as down comforters and down jackets are generally from waterfowl. Waterfowl include geese, ducks, and eiders (wild ducks) that live on the coastlines of the Arctic Circle. There are two types of feathers: down, which is similar to chest hair, and feathers, both of which are used in feather products. Feathers are produced in Central Europe, such as Poland and Hungary, Northern Europe, including the Scandinavian Peninsula, and China. Feathers are bulky and warm, and occupy a position as a luxury material for feather products such as duvets and down jackets. However, natural feathers are dependent on waterfowl, and there is a limit to the supply, and the supply fluctuates due to natural conditions and harmful diseases (such as avian viruses). From the perspective of nature conservation, there is also a limit to capturing wild birds. Furthermore, natural feathers can cause a foul odor if not washed properly, so it is necessary to remove any foul odor-causing filth beforehand and to maintain a certain level of cleanliness and oxygen count, which indicate the degree to which the feathers have been washed. Another basic problem is that it is not easy to wash feather products such as feather duvets and feather jackets. Therefore, there have been many proposals for batting, including long fiber batting consisting of core yarn and filament yarn. Methods for filling long fiber batting into heat insulating structures such as down jackets include a method of providing a gap in the heat insulating structure into which the long fiber batting can be inserted and inserting the long fiber batting, and a method of laying the long fiber batting on the back fabric and then laminating the front fabric, and then quilting the laminate to fix the long fiber batting between the back fabric and the front fabric. Since these require specialized methods for using long fiber batting, there is a need for a method that allows the use of long fiber batting to be easily adapted to existing garment manufacturing processes.

[0003] Patent Document 1 discloses a thermal insulation material for clothing in which a bulkiness-retaining layer made of synthetic fibers and a microporous membrane layer having a microporous membrane are integrated together. The bulkiness-retaining layer uses bulky yarn, and the microporous membrane layer uses a microporous membrane, particularly a melt-blown nonwoven fabric, in which 80% or more of the micropores have a pore size of 5.0 μm or less. Patent document 2 discloses a long-fiber cotton sheet in which aligned long-fiber cotton sheets are placed on the front and back of a thermal adhesive sheet and re-polymerized (in a three-layer state with a thermal adhesive sheet between them), and the long-fiber cotton sheet is then passed between a pair of heat rolls to heat-bond the first and second layers of long-fiber cotton sheets to both sides of the thermal adhesive sheet, thereby enhancing the integrity of the long-fiber cotton sheet. Patent Document 3 discloses a laminated padding sheet that can be formed into a planar laminated padding sheet by uniformly and automatically arranging long fiber bundles, and a padding structure using the same. It proposes that the padding is arranged in a folded state, sandwiched between two pieces of fabric, and then sewn. Patent Document 4 discloses a filling structure in which holes are formed at predetermined intervals in a nonwoven fabric, and long fiber filling is passed through the holes to be integrated with the nonwoven fabric. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2021-046653 A [Patent Document 2] JP 2020-063539 A [Patent Document 3] Patent No. 7250232 [Patent Document 4] JP 2022-153027 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the conventional technology has a problem in that the long fiber filling is easily caught on various objects, and when caught, it frays and becomes difficult to handle, making it difficult to easily apply to existing clothing manufacturing processes.

[0006] In order to solve the above problems, the present invention provides a laminated padding sheet that is easy to handle, can be easily applied to existing clothing manufacturing processes, has high bulkiness and good flatness, a manufacturing method thereof, and a padding structure using the same. [Means for solving the problem]

[0007] The laminated padded sheet of the present invention is a laminated padded sheet including a long fiber padding layer and a fiber sheet layer, and the fiber sheet layer has a basis weight of 5 to 80 g / m 2 The long fiber yarn constituting the long fiber filling layer is composed of at least a core yarn and an effect yarn, and the core yarn and the effect yarn are integrated together. The long fiber filling layer is formed by aligning a plurality of the long fiber yarns to form a fiber bundle, and one or more of the fiber bundles are arranged in parallel in the length direction. The fiber sheet layers are laminated and integrated on both sides of the long fiber filling layer.

[0008] The manufacturing method of the laminated padding sheet of the present invention is a manufacturing method of the laminated padding sheet, characterized in that a plurality of long fiber yarns, which are composed of at least a core yarn and an effect yarn and in which the core yarn and the effect yarn are integrated, are aligned to form a fiber bundle, a plurality of the fiber bundles are arranged in parallel in the longitudinal direction to form a long fiber padding layer, fiber sheet layers are laminated on both sides of the long fiber padding layer, the long fiber padding layer and the fiber sheet layer are laminated together, and the laminated and wound up.

[0009] The fiber structure of the present invention is a fiber structure comprising the above-mentioned laminated padding sheet. Effect of the Invention

[0010] The laminated padded sheet of the present invention includes a long fiber padding layer and a fiber sheet layer, and the fiber sheet layer has a basis weight of 5 to 80 g / m 2The long fiber yarns constituting the long fiber filling layer are composed of at least a core yarn and an effect yarn, and the core yarn and the effect yarn are integrated together. The long fiber filling layer is formed by aligning a plurality of the long fiber yarns to form a fiber bundle, and one or more of the fiber bundles are arranged in parallel in the length direction. The fiber sheet layers are laminated and integrated on both sides of the long fiber filling layer, and thus it is possible to provide a laminated filling sheet which is easy to handle, can be easily applied to existing clothing manufacturing processes, and has high bulk and good flatness, a manufacturing method thereof, and a filling structure using the same. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1A is a schematic perspective view of a laminated padding sheet according to one embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line II in FIG. 1A. [Diagram 2] FIG. 2 is a schematic explanatory view showing a manufacturing apparatus for a laminated padding sheet according to one embodiment of the present invention. [Diagram 3] FIG. 3 is a schematic explanatory view showing a manufacturing apparatus for a laminated padding sheet according to another embodiment of the present invention. [Figure 4] FIG. 4 is a schematic explanatory view showing a manufacturing apparatus for a laminated padding sheet according to still another embodiment of the present invention. [Diagram 5] FIG. 5 is a schematic enlarged view of the main part near the yarn winding body in FIG. [Figure 6] FIG. 6 is a schematic side view of a long fiber yarn according to one embodiment of the present invention. [Figure 7] FIG. 7 is a schematic explanatory diagram showing a method for producing a continuous fiber yarn according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] The laminated padded sheet of the present invention includes a long fiber padding layer and a fiber sheet layer, and the fiber sheet layer has a basis weight of 5 to 80 g / m 2This improves the ease of handling of the long fiber filling layer without impairing the bulkiness, heat retention, and other properties of the filling. The long fiber yarn constituting the long fiber filling layer is composed of at least a core yarn and a filament yarn, and the core yarn and the filament yarn are integrated. The long fiber yarn is also called a continuous fiber yarn or a filament yarn. The long fiber filling layer is formed by arranging a plurality of long fiber yarns into a fiber bundle, and one or more fiber bundles are arranged in parallel in the length direction. It is preferable that the fiber bundle is flat. The fiber bundle may be thick in the center and thin in the peripheral portion when viewed from the cross section. Therefore, the filling layer may be uneven in the width direction due to the density of the fiber bundle. Fiber sheet layers are laminated and integrated on both sides of the long fiber filling layer, and serve as protective layers to prevent fraying of the long fiber filling layer.

[0013] The fiber sheet layer is preferably at least one layer selected from the group consisting of woven fabric, knitted fabric, net, mesh and nonwoven fabric. These fiber sheet layers are suitable as protective layers to prevent fraying of the long fiber filling layer. Woven fabrics such as gauze fabric and cheesecloth fabric have a coarse weave and a basis weight of 5 to 80 g / m2. 2 For knitted items, the weight is preferably in the range of 5 to 80 g / m by using thin yarn and coarse knitting. 2 The nonwoven fabric layer preferably has a basis weight of 5 to 80 g / m 2 In the range, a long fiber nonwoven fabric layer or a short fiber nonwoven fabric layer is preferable, and a short fiber nonwoven fabric layer is more preferable. The short fiber nonwoven fabric layer can be formed into a card web to form a thin and uniform nonwoven fabric layer. It is also easy to mix fibers containing a low melting point component with high melting point fibers. Here, the short fibers are preferably in the range of 10 to 100 mm, more preferably 20 to 80 mm, even more preferably 30 to 60 mm, and particularly preferably 40 to 50 mm. The long fiber nonwoven fabric is preferably a melt-blown nonwoven fabric. The fibers constituting the nonwoven fabric layer are preferably polyester, nylon, polypropylene, etc.

[0014] The fiber sheet layer may be composed of a substrate and an adhesive. The weight of the substrate is 5 to 50 g / m 2This is preferable because, when a laminated padding sheet is formed, it is possible to prevent the long fiber padding layer from being exposed due to damage to the fiber sheet layer, and flexibility can be maintained.

[0015] It is preferable that the fiber sheet layer has an adhesive applied to the substrate surface. If the adhesive is present inside the nonwoven fabric layer, the adhesive that is not involved in integration increases the weight of the laminated padding sheet, which is not preferable.

[0016] The laminated padding sheet of the present invention can function as a protective layer as long as the fiber sheet layer does not peel off from the long fiber padding layer, so there is no need to bond more strongly than necessary, and it is preferable to reduce the amount of adhesive as much as possible. Therefore, it is difficult to set a lower limit for the weight of the adhesive, but it is preferable that the adhesive is applied at 0.1 to 30.0 g / m2 because it is possible to confirm whether the adhesive is present.

[0017] The long fiber filling layer and the fibrous sheet layer are preferably laminated together by the following method, for example. (1) A method in which high melting point fibers are mixed with heat-fusible fibers, and then dot-heated to partially fuse them with the long fiber filling layer. (2) A method in which an adhesive is sprayed onto the nonwoven fabric to partially bond it to the long fiber filling layer. (3) A method in which hot melt adhesive is applied in dots to the nonwoven fabric using an embossing roll, and then heated to partially bond it to the long fiber filling layer. (4) A method in which the fiber sheet layer and the long fiber batting layer are intertwined with a needle to partially bond them.

[0018] In the lamination, the adhesive concentration may be varied. For example, in the method (2), when applying the adhesive to the fiber sheet, the adhesive may be applied in stripes in the length direction of the fiber sheet used for lamination, thereby reducing the area where the long fiber filling layer and the fiber sheet layer are adhered to each other, and the loss of bulkiness due to lamination of the long fiber filling may be reduced. In the method (3), by changing the distance between the heating roll for heating the hot melt adhesive and the fiber sheet, the area where adhesive ability is generated may be reduced, and the loss of bulkiness due to lamination of the long fiber filling may be reduced.

[0019] The fiber bundle in which a plurality of long fiber yarns are aligned preferably has 1 to 100 strands aligned in the length direction, more preferably 2 to 80 strands, and even more preferably 3 to 60 strands. This allows the formation of a laminated padding sheet having a width ranging from narrow to wide.

[0020] The fiber sheet layer is preferably made of a fiber web made of a mixture of short fibers such as polyester and short fibers with a low melting point, which gives the layer a light weight and a large volume, making it suitable as a protective layer for the padding layer. When a nonwoven fabric layer is used as the fiber sheet layer, a thermal bonded nonwoven fabric, a chemical bonded nonwoven fabric, a needle punched nonwoven fabric, a water jet punched nonwoven fabric, a stitch bonded nonwoven fabric, a spun laced nonwoven fabric, etc. can be used. Among these, a thermal bonded nonwoven fabric is preferred. The thickness of the fiber sheet layer in a static state is preferably 0.01 to 5 mm, more preferably 0.05 to 4 mm, and even more preferably 0.1 to 3 mm. The above thickness does not impair the bulkiness and heat retention of the long fiber filling layer, and can improve flatness and handling properties.

[0021] The method for producing the laminated padding sheet of the present invention includes the following steps. (1) A step of aligning a plurality of long fiber yarns, each of which is composed of at least a core yarn and an effect yarn and in which the core yarn and the effect yarn are integrated, to form a fiber bundle. (2) A step of arranging a plurality of the fiber bundles in a longitudinal direction and in parallel to form a long fiber filling layer. (3) A step of laminating a fiber sheet layer on at least one side of the long-fiber filling layer to integrally laminate the long-fiber filling layer and the fiber sheet layer. (4) Winding process.

[0022] The long fiber yarn is preferably a bulky yarn, and is preferably composed of at least two types of core yarn and flower yarn, the core yarn being relatively short compared to the flower yarn, and the core yarn and the flower yarn being integrated into a long fiber yarn. Although it is optional to add fibers other than the core yarn and the flower yarn, the total of the core yarn and the flower yarn is preferably 70% by mass or more, more preferably 80% by mass or more, when the long fiber yarn is taken as 100% by mass. The core yarn and the flower yarn are integrated. Here, integration refers to a state in which the fibers are entangled or wound around each other. The core yarn is relatively short compared to the flower yarn. Bulkiness is achieved by providing a difference in length between the core yarn and the flower yarn. The weight ratio of the flower yarn to the core yarn is preferably in the range of 51 to 99% by mass (wt%) when the total of the flower yarn and the core yarn is taken as the modulus. More preferably, it is in the range of 80 to 98 wt%, and particularly preferably in the range of 85 to 97 wt%. Within the above range, both component yarns are firmly fixed and the texture is good. It is preferable that both the core yarn and the filament yarn are continuous fibers (long fibers, filament fibers).

[0023] The mass per unit length of the long fiber yarn is preferably 0.01 to 3 g / m, more preferably 0.02 to 1.5 g / m. 2 to 1800 long fiber yarns, preferably 2 to 1000 long fiber yarns, more preferably 5 to 500 long fiber yarns, and particularly preferably 10 to 250 long fiber yarns are bundled together, for example, by drawing them together to form a long fiber bundle. The mass per unit length of the long fiber bundle is preferably 0.15 to 45 g / m, more preferably 0.3 to 25 g / m. If the mass is within this range, it is convenient to handle when forming a laminated batting sheet. The long fiber bundle can be used as a single bundle or as a plurality of bundles by drawing them together. The long fiber bundle may be wound into a yarn body or may be stored in a carton container. The width of the laminated batting sheet is preferably 0.3 to 3 m, more preferably 0.5 to 2.5 m. This width can be used for everything from clothing to bedding.

[0024] The mass per unit area (basis weight) of the long fiber filling layer of the laminated filling sheet is 5 to 1000 g / m 2 In the case of padded clothing, the mass per unit area of ​​the long fiber padding layer is preferably 5 to 400 g / m 2 is preferable, and more preferably, 10 to 120 g / m 2 In the case of a futon, for example, the mass per unit area of ​​the long fiber bundles in the long fiber filling layer of a quilt is 10 to 600 g / m 2 is preferable, and more preferably 30 to 400 g / m 2 It is.

[0025] The mass per unit area of ​​the laminated padding sheet (basis weight) is 15 to 1160 g / m 2 In the case of padded clothing, the mass per unit area of ​​the laminated padding sheet is preferably 15 to 560 g / m 2 is preferable, and more preferably, 15 to 200 g / m 2 In the case of a futon, for example, the mass per unit area of ​​the long fiber bundle of the laminated filling sheet is 15 to 760 g / m 2 is preferable, and more preferably 15 to 480 g / m 2 It is.

[0026] The fiber structure is preferably a garment, bedding, sleeping bag, or a part thereof. Specifically, it is preferably a futon, a blanket, a sleeping bag, a pillow, a cushion, a mat, a stuffed toy, a lap blanket, a jacket, a shirt, pants, a vest, a coat, a cold weather clothing, a work wear, a neck warmer, or a part thereof. Clothing such as a jacket, a shirt, and pants is suitable for sports. In addition, it has a fitting feeling like an inner jacket and has good stretchability.

[0027] It is preferable that at least a urethane-based crosslinking agent, an acrylic-based crosslinking agent, or an epoxy resin crosslinking agent is applied to the long fiber yarn as a crosslinking agent and fixed by curing. This can improve bulkiness and washability. Furthermore, it is preferable to use, as a surface treatment agent, a resin smoothing agent that improves smoothness, for example, a silicone-based resin in combination with the crosslinking agent. In particular, it is preferable to use a silicone-based resin in combination with a urethane-based crosslinking agent. The crosslinking agent and / or smoothness is preferably applied in an amount of 0.1 to 10% by mass relative to the long fiber yarn.

[0028] The core yarn and the filament yarn can be made of fibers such as polyester, nylon, and polypropylene, but polyethylene terephthalate (PET) hollow yarn is preferable. Polyethylene terephthalate hollow yarn is warm due to its insulating effect, and PET has stiffness and can maintain high bulkiness. The hollow ratio is preferably about 10 to 40%.

[0029] The core yarn and the effect yarn are preferably integrated by at least one process selected from the group consisting of entanglement, air jet, winding, and spraying of the effect yarn against the core yarn. The entanglement process is a process using an air entanglement machine that sprays compressed air perpendicular to the running direction of the core yarn and the effect yarn. The air jet process is a so-called taslan process, in which compressed air is forced into the core yarn and the effect yarn in the traveling direction. The winding process is a process in which the effect yarn is wound around the core yarn to integrate them. The process in which the effect yarn is sprayed against the core yarn is a process in which the effect yarn is sprayed onto the core yarn to entangle or rotate it.

[0030] The core yarn and the effect yarn preferably have a single fiber fineness of 0.1 to 300 decitex and a total fineness of 10 to 600 decitex. More preferably, the single fiber fineness is 1.0 to 50 decitex and the total fineness is 15 to 250 decitex. If the fineness is within the above range, the yarn is less likely to become worn out and has a good texture.

[0031] The filling structure of the present invention restricts the movement of the long fiber bundles even after repeated washing, resulting in a stuffing product with less bias and high volume. The filling structure of the present invention may use other filling materials in addition to the long fiber bundles. It may also be used in combination with feathers, artificial feathers, and short fiber cotton.

[0032] The following description will be given with reference to the drawings. In each drawing, the same reference numerals denote the same parts. Fig. 1A is a schematic perspective view of a laminated padding sheet 1 according to one embodiment of the present invention, and Fig. 1B is a cross-sectional view taken along line II in Fig. 1A. This laminated padding sheet 1 has fiber sheet layers 3a, 3b laminated and integrated on both surfaces of a long-fiber padding layer 2 in which a large number of long fiber yarns are aligned in the length direction. The long-fiber padding layer 2 is composed of long-fiber bundles 2a, 2b, 2c.... When the long-fiber padding 2 is used alone, the long fibers tend to get caught on various objects, which causes fraying and reduces handleability. However, when the fiber sheet layers 3a, 3b are laminated and integrated on both surfaces of the long-fiber padding layer 2, the handleability is improved, and the sheet can be easily applied to existing clothing manufacturing processes.

[0033] 2 is a schematic explanatory diagram showing a laminated batting sheet manufacturing apparatus 10 according to one embodiment of the present invention. In this laminated batting sheet manufacturing apparatus 10, a long fiber bundle 12 drawn out from a yarn wound body 11 passes through a guide bar 13 and a guide pipe 14, and passes between front rolls 18a, 18b and rear rolls 19a, 19b. The front rolls 18a, 18b and rear rolls 19a, 19b are heating rolls. Meanwhile, the fiber sheets 16a, 16b pulled out from the roll bodies 15a, 15b are passed between the guide bars 17a, 17b, the front rolls 18a, 18b, and the rear rolls 19a, 19b, and are laminated and integrated onto both surfaces of the long fiber bundle 12 on the guide roll 20 to form a laminated filling sheet 21. The laminated padding sheet 21 thus obtained is wound up on a roll 22. It is preferable that the front rolls (heating rolls) 18a, 18b are not in contact with the fiber sheets 16a, 16b and the long fiber bundle 12. It is also preferable that the rear roll (heating roll) 19a is not in contact with the fiber sheet 16a and the long fiber bundle 12, and that the rear roll (heating roll) 19b is in contact with the fiber sheet 16b and the long fiber bundle 12. This allows the long fiber bundle 12 to be bonded to the fiber sheets 16a, 16b on both surfaces by partial or point bonding. The long fiber bundle 12 passes through a guide bar 13 and a guide pipe 14 and is sent forward. The long fiber bundle 12 is sent forward by the guide pipe 14 while maintaining the bundle state. The figure shows that 15 long fiber bundles 12 are arranged in the width direction to form a long fiber filling, and a fiber sheet 16a is supplied from above. As an example, 15 long fiber bundles 12 are arranged in the width direction to form long fiber filling, and fiber sheets 16a, 16b are laminated and integrated on both surfaces, but the state of the long fiber bundles 12 can be confirmed.

[0034] Fig. 3 is a schematic explanatory diagram showing a manufacturing apparatus for a laminated padding sheet according to another embodiment of the present invention, and differs from Fig. 2 in that the front roll (heating roll) 18a is in contact with the fiber sheet 16a and the long fiber bundle 12, and the rear roll (heating roll) 19b is in contact with the fiber sheet 16b and the long fiber bundle 12. This allows the long fiber bundle 12 to be bonded to the fiber sheets 16a and 16b on both surfaces by partial or point bonding.

[0035] Fig. 4 is a schematic explanatory diagram showing a laminated padding sheet manufacturing apparatus according to yet another embodiment of the present invention, and Fig. 5 is a schematic enlarged view of the main part near the yarn winding body in Fig. 4. The difference from Fig. 2 is that the long fiber bundles 24, 24a-24c wound around the yarn winding body 23, 23a-23c are wide, the number of long fiber bundles pulled out from the yarn winding body is small, and no guide pipe is used. A guide plate may be disposed instead of the guide pipe. 25 is a guide bar. Note that the yarn winding body 11 shown in Figs. 2 and 3 has the long fiber bundle 12 wound back and forth in order from the end, but the yarn winding body 23, 23a-23c shown in Figs. 27 and 5 has the long fiber bundles 24, 24a-24c wound in parallel.

[0036] 6 is a side view of a continuous fiber yarn (air-entangled yarn) 30 according to one embodiment of the present invention. In this continuous fiber yarn 30, constituent fibers of a core yarn 31 and an effect yarn 32 are entangled with each other, and the effect yarn 32 is opened to partially form loop-shaped fibers.

[0037] Fig. 7 is a schematic explanatory diagram of a long fiber filling manufacturing apparatus 33 according to an embodiment of the present invention. A core yarn 34a is drawn from a yarn winding body 34, and an effect yarn 35a is drawn from a yarn winding body 35, and the core yarn 34a is passed through two feed rolls 36 and 37 and a yarn guide 38, and is then supplied to an air entangling device 40. When compressed air is supplied to the air entangling device 40 from a compressed air line 41, the fibers in the yarn path 39 are opened and rotated, and are entangled with each other. 42 is a long fiber yarn (air entangled yarn). The core yarn is supplied at a speed of 10 to 200 m / min, the effect yarn is supplied at a speed of 20 to 10,000 m / min, the winding speed is 10 to 200 m / min, and the mixed fiber entanglement process is performed using an entanglement nozzle with an air pressure of 0.01 to 1.0 MPa, and the yarn that has passed through a delivery roll 43 is wound around a winding body 45. 44 is a winder roll. This method has the advantage that the yarn can be wound at a high speed of 20 to 1500 m / min, resulting in high productivity. Instead of winding the yarn around the yarn winding body 45, the yarn may be stored in a can.

[0038] It is preferable to add a silicone resin to the obtained long fiber yarn (air-entangled yarn). The silicone resin has a molecular end with a hydrogen group (-OH) or a vinyl group (-CH=CH 2 It is preferable to use a reactive silicone treatment agent having a reactive functional group such as tert-butyl ether. For example, bulky silicone "TERON E 530" manufactured by Matsumoto Yushi Seiyaku Co., Ltd., soft silicone "TERON E 731" or "TERON E 722" can be used. The amount of the agent applied is preferably 0.1 to 10% by mass based on the wadding on a dry basis. Next, in the heat treatment step, the silicone resin is cured by heat treatment at 140 to 190°C for 1 to 10 minutes. EXAMPLES

[0039] The present invention will be described in more detail below with reference to examples, although the present invention is not limited to the following examples.

[0040] Example 1 (1) Long fiber filling The core yarns used were electroconductive fibers, KB Seiren antistatic yarn with a fineness of 22 decitex and 3 filaments, and polyethylene terephthalate (PET) filament yarn with a fineness of 41 decitex and 18 filaments, and the decorative yarns used were PET hollow filament yarn (hollowness 35%) with a fineness of 39 decitex and 12 filaments, and the long fiber filling was produced by the method shown in Figure 7. The conductive fiber in the core yarn was about 40 mass%. The proportion of conductive fiber in the entire long fiber filling was about 1.6 mass%. Next, in the silicone resin application process, the above-mentioned long fiber yarn was treated in a bundle of 15 fibers. As the silicone resin, an aqueous solution containing 10% by mass of "Teron E-530" (trade name, manufactured by Matsumoto Yushi Seiyaku Co., Ltd.) and 0.5% by mass of "Marpoteron E-722" (trade name, manufactured by the same company) was used, and the amount applied was 3.0 wt% of the long fiber yarn in terms of dry weight. Next, in the heat treatment process, the long fiber yarn was heat-treated at 140 to 190°C for 1 to 13 minutes to thermally cure and fix the silicone resin. The mass of the obtained fiber bundle of 15 long fiber yarns was 1.8 g / m. This fiber bundle was wound around a yarn winder. (2) Fiber sheet The fiber sheet used was a thermal bond nonwoven fabric, product number TX-12, manufactured by Kurashiki Textile Processing Co., Ltd. This nonwoven fabric is a blend of 70% by weight nylon staple fibers (fineness 1.7 decitex, fiber length 51 mm) and 30% by weight polyester staple fibers (fineness 1.6 decitex, fiber length 51 mm), and is coated with polyester resin using a dot processing method. The dot processing is done by applying a solution of hot melt powder (polyester resin) dispersed in water to a roll with dot-shaped holes, and then evaporating the water to apply the dots. Dot density: 900 dots / inch 2 , Recommended temperature for use of applied polyester resin: 130℃, basis weight: 27g / m 2 , base fabric 16g / m 2 , hot melt 11g / m 2 The thickness of the thermal bond nonwoven fabric is 0.11 mm. (3) Manufacturing of laminated padding sheets A laminated padded sheet was manufactured using the manufacturing apparatus shown in Figures 2 to 5. 15 bundles of long fiber yarns (1.8 g / m each) were pulled out from each yarn winding body and arranged to a width of 50 cm, and a 50 cm wide thermal bond nonwoven fabric was placed on both sides. The front roll was set at 120°C (set temperature) and the rear roll was set at 100°C (set temperature). The sheets were laminated and integrated on both surfaces of the long fiber bundles 12 on the guide roll 20 to form a laminated padded sheet 21, which was then wound up on a roll body 22. The basis weight of the obtained laminated padded sheet was 81 g / m 2 The thickness was 12.3 mm. To reduce variation, a 8.5 cm x 21.5 cm polystyrene foam board (weight: 4.9 g) was placed on top of the laminated padding sheet, the height of the bottom surface of the polystyrene foam board was measured at two points, and the average value was taken as the thickness.

[0041] Fifteen of the long fiber bundles (each bundle consisting of 15 long fiber threads) were arranged in parallel to form a 50 cm width, and the thickness was measured. The thickness was 16.3 mm. To reduce measurement variation, a 8.5 cm x 21.5 cm polystyrene foam plate (weight: 4.9 g) was placed on the long fiber bundle, and the height of the bottom surface of the polystyrene foam plate was measured at two points, and the average value was taken as the thickness.

[0042] It was confirmed that the laminated padding sheet obtained in this manner has good handleability, can be easily applied to existing clothing manufacturing processes, has high bulkiness, and has good flatness.

[0043] Example 2 (1) Long fiber filling The same long fiber yarn as in Example 1 was made into a fiber bundle of 47 fibers, and this fiber bundle was wound around a yarn spool. (2) Fiber sheet The same thermal bond nonwoven fabric as in Example 1 was used. (3) Manufacturing of laminated padding sheets A laminated padded sheet was manufactured using the manufacturing apparatus shown in Figures 4 and 5. Three bundles of long fiber yarn (5.64 g / m each) were pulled out from each yarn winding and arranged to a width of 50 cm, and a 50 cm wide thermal bond nonwoven fabric was placed on both sides. The front roll was set at 120°C (set temperature) and the rear roll was set at 100°C (set temperature). The sheets were laminated and integrated on both surfaces of the long fiber bundles 12 on the guide roll 20 to form a laminated padded sheet 21, which was then wound up on a roll body 22. The basis weight of the obtained laminated padded sheet was 71 g / m 2 The thickness was 15.7 mm. The measurements were carried out in the same manner as in Example 1.

[0044] Three of the long fiber bundles (each bundle consisting of 47 long fiber yarns) were arranged in parallel to each other to have a width of 50 cm, and the thickness was measured. The thickness was 21.2 mm. The measurement was performed in the same manner as in Example 1.

[0045] It was confirmed that the laminated padding sheet obtained in this manner has good handleability, can be easily applied to existing clothing manufacturing processes, has high bulkiness, and has good flatness.

[0046] Example 3 Instead of thermal bond nonwoven fabric as a fiber sheet, gauze fabric (weight 30g / m 2 The same procedure as in Example 1 was carried out except that a 1.0 mm thick sheet (1.0 mm thick) was used. It was confirmed that the laminated padding sheet obtained in this manner has good handleability, can be easily applied to existing clothing manufacturing processes, has high bulkiness, and has good flatness. [Industrial Applicability]

[0047] The padding structure of the present invention is preferably a futon, blanket, sleeping bag, pillow, cushion, seat cushion, chair cushion, mat, stuffed toy, lap blanket, jacket, shirt, pants, vest, coat, cold weather clothing, work clothes, neck warmer, or parts thereof. [Explanation of symbols]

[0048] 1 Laminated padding sheet 2 Long fiber padding layer 2a,2b,2c,12,24,24a-24c long fiber bundle 3a, 3b Fiber sheet layer 10. Laminated padding sheet manufacturing equipment 11,23,23a-23c Winding body 13,17a,17b,25 Guide bar 14 Guide pipe 15a, 15b, 22 Roll body 16a, 16b Fiber sheet 17a,17b Guide bar 18a,18b Front roll 19a, 19b Rear roll 20 Guide Roll 21 Laminated padding sheet 30,42 Long fiber yarn 31,34a Core yarn 32,35a filament 33 Long fiber filling manufacturing equipment 34, 35, 45 Winding body 36,37 Feed roll 38 Thread guide 39 Thread Path 40 Air interlacing device 41 Compressed Air Line 43 Delivery Roll 44 Winder Roll

Claims

1. A laminated padding sheet including a long fiber padding layer and a fiber sheet layer, The fiber sheet layer has a basis weight of 5 to 80 g / m 2 and The long fiber yarn constituting the long fiber filling layer is composed of at least a core yarn and an effect yarn, and the core yarn and the effect yarn are integrated together, The long fiber filling layer is formed by arranging a plurality of the long fiber yarns into a fiber bundle, and one or more of the fiber bundles are arranged in parallel in the length direction, A laminated padded sheet, characterized in that the fiber sheet layers are laminated and integrated on both sides of the long fiber padding layer.

2. 2. The laminated padding sheet according to claim 1, wherein the fiber sheet layer is at least one layer selected from the group consisting of woven fabric, knitted fabric, net, mesh and nonwoven fabric.

3. 2. The laminated padding sheet according to claim 1, wherein the fiber sheet layer has a surface coated with an adhesive.

4. The laminated padded sheet of claim 1, wherein the long fiber filling layer and the fiber sheet layer are laminated and integrated by at least one method selected from the group consisting of dot heating of heat-sealing fibers mixed in the fiber sheet layer, spraying of adhesive onto the fiber sheet layer, dotting the fiber sheet layer with hot melt adhesive and heating it, and a process of entangling the fiber sheet layer and the long fiber filling layer with needles.

5. 2. The laminated padding sheet according to claim 1, wherein the fiber bundle in which a plurality of long fiber yarns are aligned has a mass per unit length of 0.15 to 45 g / m.

6. 2. The laminated padding sheet according to claim 1, wherein the fiber bundle has 2 to 1,800 long fiber yarns aligned.

7. The weight of the long fiber filling layer is 5 to 1000 g / m 2 The weight of the laminated padding sheet is 10 to 1080 g / m 2 2. The laminated padding sheet according to claim 1,

8. 2. The laminated padding sheet according to claim 1, wherein the fiber sheet layer is made of a sheet containing polyester staple fibers and low melting point staple fibers.

9. 2. The laminated padding sheet of claim 1, wherein said fibrous sheet layer is a thermal bonded nonwoven fabric layer.

10. A method for producing the laminated padding sheet according to any one of claims 1 to 9, A plurality of long fiber yarns, each of which is composed of at least a core yarn and an effect yarn and in which the core yarn and the effect yarn are integrated, are aligned to form a fiber bundle, and a plurality of the fiber bundles are arranged in parallel in the length direction to form a long fiber filling layer, A method for producing a laminated padded sheet, comprising laminating fiber sheet layers on both sides of the long fiber padding layer, laminating the long fiber padding layer and the fiber sheet layer together, and winding the laminated padding layer.

11. A fiber structure comprising the laminated padding sheet according to any one of claims 1 to 9.

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