Pillow and cushion using fiber filler, and method for producing the same

Abstract

To provide a fiber filler capable of maintaining rebound property and aging resistance over a long period of time and extending its service life.SOLUTION: A fiber filler includes at least two filler zones, each filler zone being formed by winding and stacking fibers, and the hardness thereof differing from each other. The filler zones can be divided into multiple layers, or divided into multiple regions in the same layer, or divided into multiple layers as well as multiple regions. By utilizing independent filler zones composed of layered fiber base layers and assembling filler zones of different hardnesses integrally with each other by stacking, the hardness characteristics of different regions of the fiber filler can be flexibly adjusted, thereby maintaining the characteristic that the hardness differs between the inside and the outside, improving the deformation smoothness of cushions for household decoration, and enabling adaptation to the needs of different people.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the field of packaging and stuffing, in particular to fiber stuffing and an apparatus for its production. [Background technology]

[0002] Currently, there are a variety of stuffing materials on the market used for pillows, sofas, chairs and other home decorations, including traditional Chinese medicines such as Cassia japonica, Chinese holly, and Chinese radish; grains such as buckwheat husks, millet bran, and cotton; and materials such as stalks, cattail heads, and discarded tea leaves. In addition, materials processed and manufactured using modern technology, such as porous vacuum cotton and memory foam, are all widely used stuffing materials on the market, and the rebound time varies depending on the material.

[0003] However, existing filling materials often have limited service life and suffer from problems such as loss of elasticity and aging after long-term use. Staple fiber, the most common material at present, is easily compacted, deformed, and loses elasticity after several months of use, resulting in a limited service life. Its comfort gradually decreases over time, and its breathability decreases, resulting in poor hygiene. Therefore, those skilled in the art have proposed fiber fillings and manufacturing equipment to solve the problems raised in the background art. Using PE material, in particular, is more effective. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION The present invention aims to provide a fiber wad and a manufacturing apparatus therefor to solve the problems presented in the background art. [Means for solving the problem]

[0005] To achieve the above object, the present invention provides the following technical solution: the fiber filling comprises at least two filling sections, each of which is formed by winding and stacking fibers, has a different hardness, and is divided into multiple layers, or into multiple regions in the same layer, or is divided into multiple layers and multiple regions.

[0006] Furthermore, the filling portions are formed by heating and melting the fibers using a screw extrusion manufacturing device, extruding the fibers, and then stacking and compressing multiple sets of base layers at once using a compression mold after the fibers have been molded.

[0007] Furthermore, if it is divided into multiple regions, each region is set to be 50 square centimeters or more, and if it is divided into multiple layers, the thickness of each layer is set to be 10 centimeters or more, the density of each layer or each region is set to be between 30 kilograms / cubic meter and 100 kilograms / cubic meter, adjacent layers or adjacent regions have a density difference of at least 10% or different fiber shapes and materials are set, and the hardness is set to be 60 to 100 Newtons, and each layer or each region has a different hardness, and different colors can be set to distinguish layers or regions of different hardness.

[0008] Furthermore, the hardness of each filling portion is determined by the thickness and density of the fiber in the filling base layer, and in the case of manufacturing, the thickness of the fiber is first determined by the screw extrusion manufacturing device, and then the winding diameter and density of the fiber are determined.

[0009] Furthermore, the fiber thickness of each filling portion is determined by the extrusion head of the screw extrusion manufacturing equipment, and by replacing the extrusion head with the corresponding model number, the molten raw material can be extruded into fibers of the corresponding thickness, and the hardness of the fiber filling can be determined based on the fiber thickness of each filling portion.

[0010] The PE fiber stuffing manufacturing apparatus includes a support stand (1), a screw extrusion mechanism attached above the support stand (1), a drive motor (2) attached to the end of the support stand (1) facing the screw extrusion mechanism, a thermal melting mechanism attached to one end of the cylindrical passage of an extrusion tube (8) of the screw extrusion mechanism, and the screw extrusion mechanism and the thermal melting mechanism are electrically connected by a drain pipe (7). The screw extrusion mechanism includes an extrusion tube (8) attached above a support stand (1), a horizontal transmission shaft (14) rotatably connected to the inside of the cylindrical passage of the extrusion tube (8), a screw (15) fitted to the shaft of the horizontal transmission shaft (14), and an extrusion head (10) attached to the other end of the cylindrical passage of the extrusion tube (8) so as to face the push head of the screw (15). The thermal melting mechanism includes a thermal melting tube (6) attached to one end of the tube passage of the extrusion tube (8), a vertical transmission shaft (11) rotatably connected to the inside of the tube passage of the thermal melting tube (6), a plurality of sets of stirring arms (12) fitted to the outside of the axial rod of the vertical transmission shaft (11) facing directly to the inside of the tube passage of the thermal melting tube (6), a material extrusion screw (13) fitted to the outside of the axial rod of the vertical transmission shaft (11) facing directly to the bottom of the tube passage of the thermal melting tube (6), and stirring scrapers (18) attached to the outer ends of the branch arms of the stirring arms (12) are symmetrically installed.

[0011] Furthermore, a transmission sprocket A (3) is provided at the output end of the drive motor (2), a transmission sprocket B (5) is provided at one end of the horizontal transmission shaft (14), and the transmission sprocket A (3) and the transmission sprocket B (5) are connected by a transmission chain (4).

[0012] Furthermore, a bevel gear B (17) is installed at one end of the shaft of the horizontal transmission shaft (14), and a bevel gear A (16) that meshes with the bevel gear B (17) is installed at the bottom end of the shaft of the vertical transmission shaft (11).

[0013] Furthermore, a heating coil is attached to the inside of the cylindrical wall of the thermal melting cylinder (6), and a plurality of sets of heating cylinder sleeves (9) are arranged at equal intervals on the outside of the cylindrical passage of the extrusion cylinder (8).

[0014] Furthermore, at least two sets of screw extrusion mechanisms are installed, and the extrusion heads of the two or more sets of screw extrusion mechanisms can all face the compression die.

[0015] The PE fiber stuffing manufacturing apparatus includes a support stand, a screw extrusion mechanism is attached above the support stand, a drive motor is attached to the end of the support stand facing the screw extrusion mechanism, a thermal melting mechanism is attached to one end of the extrusion tube of the screw extrusion mechanism, and the screw extrusion mechanism and the thermal melting mechanism are connected by a drain pipe; The screw extrusion mechanism includes an extrusion tube mounted above a support stand, a horizontal transmission shaft rotatably connected to the inside of the cylindrical passage of the extrusion tube, a screw fitted to the shaft rod of the horizontal transmission shaft, and an extrusion head mounted at the other end of the cylindrical passage of the extrusion tube so as to face the push head of the screw; The thermal melting mechanism includes a thermal melting cylinder attached to one end of the cylindrical passage of the extrusion cylinder, a vertical transmission shaft rotatably connected to the inside of the cylindrical passage of the thermal melting cylinder, a plurality of sets of stirring arms fitted to the outside of the shaft of the vertical transmission shaft facing directly to the inside of the cylindrical passage of the thermal melting cylinder, and a material extrusion screw fitted to the outside of the shaft of the vertical transmission shaft facing directly to the bottom of the cylindrical passage of the thermal melting cylinder, and stirring scrapers attached symmetrically to the outer ends of the branch arms of the stirring arms are attached to the cylindrical wall of the thermal melting cylinder.

[0016] As a further feature of the present invention, a transmission sprocket A is provided at the output end of the drive motor, a transmission sprocket B is provided at one end of the horizontal transmission shaft, and the transmission sprockets A and B are connected by a transmission chain.

[0017] As another feature of the present invention, a bevel gear B is installed at one end of the shaft of the horizontal transmission shaft, and a bevel gear A meshing with the bevel gear B is installed at the bottom end of the shaft of the vertical transmission shaft.

[0018] As a further means of the present invention, a heating coil is attached to the inside of the barrel wall of the heat melting barrel, and a plurality of sets of heating barrel sleeves are arranged at equal intervals on the outside of the barrel passage of the extrusion barrel.

[0019] In another embodiment of the present invention, at least two sets of screw extrusion mechanisms are provided, and the extrusion heads of the two or more sets of screw extrusion mechanisms can all face the compression mold. The two or more sets of screw extrusion mechanisms can operate independently or simultaneously, and several sets of screw extrusion mechanisms can be selected and operated to meet the requirements of different raw materials and different hardness of fibers.

[0020] The fiber material in this technical solution can be selected as needed and can be PE, POE, PA, TPE, PP, or a mixture of two or more of the above. PE is the most dominant material, POE has high elasticity, TPE is soft to the touch, and PP or nylon has high hardness. Different materials can be combined, and the proportion of the composite material can be adjusted. [Effects of the Invention]

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. The present invention uses independent filling sections consisting of multiple fiber-based layers, and by stacking and assembling filling sections of different hardness together, it is possible to flexibly adjust the hardness characteristics of different areas of the fiber filling, maintaining the characteristic of different hardness between the inside and outside, improving the deformation smoothness of the cushion as a home decoration, and allowing it to be used in accordance with the needs of different people. Furthermore, by utilizing the elastic molding, deformation-resistant properties and antibacterial properties of PE fiber, the resilience and aging resistance of the filling can be maintained for a long period of time, and its service life can be extended, making it more widely used.

[0023] 2. The present invention has the characteristics of simple and convenient manufacturing by utilizing independent padding sections consisting of multiple fiber-based layers. The stacking characteristics of the multiple layers are utilized to form the PE fiber padding by stacking it, thereby reducing the strength of the single molding. Furthermore, by utilizing the stacking and regional placement of multiple base layers, the softness of the PE fiber padding regions can be flexibly controlled, improving the various softness characteristics of the PE fiber padding, and fulfilling the function of padding that can provide different hardnesses according to demand. Furthermore, different colors can be used to distinguish each layer or region, with one color being used for each hardness. [Brief explanation of the drawings]

[0024] [Figure 1] 1 is a schematic diagram of each part of the fiber stuffing according to Example 1 after disassembly. [Figure 2] FIG. 10 is a schematic diagram of a fiber filling according to Example 2. [Figure 3] 10 is a schematic diagram of each region of deformation of the fiber filling according to Example 2. FIG. [Figure 4] 1 is a schematic diagram of a modified fiber filling according to Example 1. FIG. [Figure 5] 1 is a schematic diagram of a modified fiber filling according to Example 1. FIG. [Figure 6]FIG. 10 is a schematic diagram of the fiber filling according to Example 4. [Figure 7] 1 is a schematic plan view of a fiber wadding manufacturing apparatus. [Figure 8] 1 is a schematic plan view of a fiber wadding manufacturing apparatus. [Figure 9] 8 is an enlarged schematic view of the fiber wadding manufacturing apparatus of FIG. 7 at point A. [Figure 10] FIG. 1 is a schematic diagram of a stirring scraper in a fiber stuffing manufacturing apparatus. DETAILED DESCRIPTION OF THE INVENTION [Example]

[0025] As shown in FIG. 1, in the embodiment of the present invention, the PE fiber stuffing includes, but is not limited to, a first stuffing portion 100, a second stuffing portion 200, a third stuffing portion 300 and a fourth stuffing portion 400; The first padding portion 100, the second padding portion 200, the third padding portion 300 and the fourth padding portion 400 are all made of PE fiber, The first stuffing portion 100, the second stuffing portion 200, the third stuffing portion 300 and the fourth stuffing portion 400 have different hardnesses, and the hardnesses increase in order; The first stuffing section 100, the second stuffing section 200, the third stuffing section 300 and the fourth stuffing section 400 all have multiple layers, and the multiple layers of the first stuffing section 100, the second stuffing section 200, the third stuffing section 300 and the fourth stuffing section 400 are stacked on top of each other.

[0026] The first stuffing section 100, the second stuffing section 200, the third stuffing section 300 and the fourth stuffing section 400 are all formed by heating and melting the material in a screw extrusion manufacturing device to extrude the fiber, and after the fiber is formed, they are all wound into multiple sets of independent base layers in sequence in a loop forming device, and then the multiple sets of base layers are stacked at once in a compression mold and compressed to form the base layers; The hardness of the first padding section 100, the second padding section 200, the third padding section 300 and the fourth padding section 400 is determined by the thickness and density of the fibers in the padding base layer; The thickness of the fibers of the first stuffing portion 100, the second stuffing portion 200, the third stuffing portion 300 and the fourth stuffing portion 400 is determined by the extrusion head of the screw extrusion manufacturing device; The fiber densities of the first stuffing section 100, the second stuffing section 200, the third stuffing section 300 and the fourth stuffing section 400 are determined by the winding diameter and the rotation path of the loop forming device; In the case of manufacturing the first stuffing section 100, the second stuffing section 200, the third stuffing section 300 and the fourth stuffing section 400, the thickness of the fiber is first determined by the screw extrusion manufacturing device, and then the winding diameter and density of the fiber are determined by the loop forming device.

[0027] The fiber thickness of the first stuffing section 100, the second stuffing section 200, the third stuffing section 300 and the fourth stuffing section 400 is determined by the extrusion head of the screw extrusion manufacturing equipment. By replacing the extrusion head with the corresponding model number, the molten PE raw material can be extruded into PE fibers of the corresponding thickness, and the hardness of the PE fiber filling can be determined based on the fiber thickness of the first stuffing section 100, the second stuffing section 200, the third stuffing section 300 and the fourth stuffing section 400. [Example]

[0028] As shown in Figures 2 and 3, in this embodiment of the present invention, any two or three types of fiber filling, including PE, POE, PA, TPE, and PP, are composed of the first deformable pillow area A1301 and the first deformable pillow area B1302. By making the first deformable pillow 1300 into two sets of independent areas, the pillow can be kept in a hard form on one side and a soft form on the other side, allowing the user to more appropriately select and use it.

[0029] In addition, for example, the second deformable pillow 1400 is composed of a second deformable pillow region A1401, a second deformable pillow region B1402, and a second deformable pillow region C1403. By making the second deformable pillow 1400 into three sets of independent regions, the pillow can be kept in a form that is hard in the center and soft on both sides, allowing the user to more appropriately select and use it. Each region in this embodiment is distinguished by assigning a different color. [Example]

[0030] As shown in FIG. 4 and FIG. 5, in the embodiment of the present invention, any two or three kinds of fiber filling of PE, POE, PA, TPE, PP is a modification to claim 1.

[0031] The mattress includes a first mattress region 900, a second mattress region 1000, a third mattress region 1100, and a fourth mattress region 1200, and the second mattress region 1000, the third mattress region 1100, and the fourth mattress region 1200 are arranged symmetrically in pairs on both sides of the first mattress region 900, and the first mattress region 900, the second mattress region 1000, the third mattress region 1100, and the fourth mattress region 1200 are arranged so that the density gradually decreases from the inside to the outside, and the mattress is divided into four sets of independent mattresses. By providing these upright areas, the mattress can be maintained in a form that is firm in the middle and soft on both sides, with the firm part of the first mattress area 900 in the middle better supporting the gravity of the user's lower back, the second mattress area 1000 better conforming to the user's buttocks and back, the third mattress area 1100 better conforming to the user's shoulders and legs, and the fourth mattress area 1200 better conforming to the user's head and feet, improving the levelness when the user is lying flat, distributing forces evenly, and improving the comfort when the user is lying flat. In addition, in this embodiment, after the fiber is extruded by the screw extruder, it can be wound into different types of mattresses. For example, the first deformable mattress 1500 is composed of a first deformable mattress area A1501, a first deformable mattress area B1502, and a first deformable mattress area C1503. By making the first deformable mattress 1500 into three sets of independent areas, the mattress can be maintained in a form that is hard in the middle and soft on both sides, allowing the user to more appropriately choose and use it. [Example]

[0032] As shown in FIG. 6, the fiber filling in this embodiment of the present invention is different from that in the first embodiment in that the fiber is extruded by a screw extruder and then wound into a cushion shape, and the cushion includes a first cushion region 1600, a second cushion region 1700, and a third cushion region 1800.

[0033] The first cushion region 1600 is wrapped around the outside of the second cushion region 1700, and the second cushion region 1700 is wrapped around the outside of the third cushion region 1800, dividing the cushion into three sets of independent regions, which keeps the cushion in a form that is hard in the middle and soft on the periphery, allowing for better force distribution and improving the uniformity of the user's force distribution on the cushion.

[0034] As shown in Figures 7 to 10, in an embodiment of the present invention, the PE fiber filling manufacturing apparatus includes a support stand 1, a screw extrusion mechanism is mounted above the support stand 1, and a drive motor 2 is mounted at the end of the support stand 1 facing the screw extrusion mechanism. A transmission sprocket A3 is mounted at the output end of the drive motor 2, and a transmission sprocket B5 is mounted at one end of the horizontal transmission shaft 14. The transmission sprockets A3 and B5 are connected by a transmission chain 4. In the process of manufacturing PE fiber filling using the manufacturing apparatus, each raw material is fed into the thermal melting tube 6 according to a predetermined specific gravity. After the feeding is completed, the drive motor 2 starts to operate, driving the transmission sprocket A3 to rotate, which in turn drives the transmission sprocket B5 to rotate through the relay transmission of the transmission chain 4, thereby driving the corresponding components in the screw extrusion mechanism and the thermal melting mechanism to operate.

[0035] A thermal melting mechanism is attached to one end of the cylindrical passage of the extrusion tube 8 of the screw extrusion mechanism, and the screw extrusion mechanism and the thermal melting mechanism are connected by a drain pipe 7. The screw extrusion mechanism includes an extrusion tube 8 attached above the support stand 1, a horizontal transmission shaft 14 is rotatably connected inside the cylindrical passage of the extrusion tube 8, and a screw 15 is fitted to the shaft rod of the horizontal transmission shaft 14. An extrusion head 10 is attached to the other end of the cylindrical passage of the extrusion tube 8 so as to face the push head of the screw 15. The thermal melting mechanism includes a thermal melting tube 6 attached to one end of the cylindrical passage of the extrusion tube 8, and a thermal melting A vertical transmission shaft 11 is rotatably connected to the inside of the thermal melting cylinder 6 passage, and a plurality of sets of stirring arms 12 are fitted to the outside of the shaft of the vertical transmission shaft 11, facing the inside of the thermal melting cylinder 6 passage. A material extrusion screw 13 is fitted to the outside of the shaft of the vertical transmission shaft 11, facing the bottom of the thermal melting cylinder 6 passage. Stirring scrapers 18 are symmetrically installed at the outer ends of the branch arms of the stirring arms 12, and are attached to the wall of the thermal melting cylinder 6. A bevel gear B17 is installed at one end of the shaft of the horizontal transmission shaft 14, and a bevel gear A16 meshing with the bevel gear B17 is installed at the bottom end of the shaft of the vertical transmission shaft 11. In the process of producing PE fiber filling by the production device, the transmission sprocket B5 rotates, and simultaneously drives the horizontal transmission shaft 14 to rotate, which in turn drives the bevel gear B17 to rotate. The bevel gear B17 and the bevel gear A16 mesh with each other to drive the vertical transmission shaft 11 to rotate synchronously. During the rotation of the vertical transmission shaft 11, the multiple sets of stirring arms 12 and stirring scrapers 18 are driven to rotate synchronously, which on the one hand improves the uniformity of the thermal melting, stirring and mixing of the PE fiber raw material, and on the other hand, promotes the uniformity of the melted PE fiber. After the PE fiber raw material is completely melted, the valve of the drain line 7 is opened, and the vertical transmission shaft 11 drives the material extrusion screw 13 to rotate spirally, extruding the melted PE fiber raw material spirally and sending it into the extrusion tube 8 through the drain line 7. Furthermore, while the horizontal transmission shaft 14 is rotating, the screw 15 drives the discharged PE fiber raw material spirally and sends it forward, and the PE fiber raw material is extruded by the extrusion head 10 to form PE fiber.

[0036] A heating coil is attached inside the barrel wall of the heat melting tube 6, and multiple sets of heating tube sleeves 9 are arranged at equal intervals on the outside of the barrel passage of the extrusion tube 8. In the process of producing PE fiber stuffing using the manufacturing device, the heating coil inside the heat melting tube 6 serves as a heat melting element to perform heat melting processing on the PE fiber raw material, which is not limited to PE but also includes materials such as polyester yarn, PVC, gel and mixtures thereof. The multiple sets of heating tube sleeves 9 on the outside of the barrel passage of the extrusion tube 8 provide continuous auxiliary heating to the heat melted PE fiber raw material, thereby maintaining its heat melted state and improving the smoothness of the fiber molding.

[0037] The above content is merely a preferred specific embodiment of the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent replacement or modification made by a person skilled in the art based on the technical means and inventive idea of the present invention within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. [Explanation of symbols]

[0038] 100 First stuffing part 200 Second stuffing part 300 Third stuffing part 400 4th stuffing part 900 First Mattress Area 1000 Second Mattress Area 1100 Third Mattress Area 1200 4th Mattress Area 1300 1st Deformed Pillow 1301 First deformation pillow area A 1302 First deformation pillow area B 1400 2nd Deformed Pillow 1401 Second deformation pillow area A 1402 Second deformation pillow area B 1403 Second deformation pillow region C 1500 First Deformed Mattress 1501 First deformation mattress area A 1502 First deformation mattress area B 1503 First deformation mattress area C 1600 First cushion area 1700 Second cushion area 1800 Third cushion area 1 support stand 2 drive motor 3 Transmission sprocket A 4 Transmission chain 5 Transmission sprocket B 6 Heat melting tube 7 Drain line 8 Extrusion tube 9. Heating barrel sleeve 10 Extrusion Head 11 Vertical transmission shaft 12 Mixing arm 13 Material extrusion screw 14 Lateral transmission shaft 15 Screw 16 Bevel gear A 17 Bevel gear B 18 Mixing scraper

Claims

1. Pillows and cushions with fiber filling, The fiber stuffing includes at least three or more stuffing sections, such as upper, middle, lower, left, middle, right, and front, middle, and rear, and each stuffing section is formed by extruding fiber through a screw extrusion manufacturing device and then winding the extruded fiber into different types of pillow and cushion areas, and the stuffing sections have different hardness, and are divided into multiple layers, or divided into multiple areas in the same layer, or divided into multiple layers and multiple areas; The pillow and cushion are generally shaped like a rectangular parallelepiped with rounded corners, The pillow and cushion have left and right surfaces that face each other in the left-right direction, upper and lower surfaces that face each other in the up-down direction, and front and rear surfaces that face each other in the front-rear direction, and each of the upper and lower surfaces is connected to the front surface with a rounded shape, and each of the upper and lower surfaces is connected to the rear surface with a rounded shape, The pillow and cushion regions, which are a plurality of stuffing portions having different hardnesses, include a pair of a hardest pillow and cushion region A, a second hardest pillow and cushion region B, and a pillow and cushion region C; The pillow and cushion area A is located in the center of the front surface in the left-right direction, The pillow and cushion area B is in the center of the upper surface in the left-right direction. Pillows and cushions with fiber filling.

2. One pillow and cushion area C of the pair of pillow and cushion areas C is located to the left of the pillow and cushion area A on the front surface and to the left of the pillow and cushion area B on the top surface, and the other pillow and cushion area C is located to the right of the pillow and cushion area A on the front surface and to the right of the pillow and cushion area B on the top surface, The width of the pillow and cushion area A in the left-right direction on the front surface becomes smaller from the part where the front surface and the lower surface are connected to the part where the front surface and the upper surface are connected, The width of the pillow and cushion region B in the left-right direction on the upper surface becomes smaller from the portion where the upper surface and the rear surface are connected to the portion where the upper surface and the front surface are connected, At the portion where the front surface and the top surface are connected, the width in the left-right direction of the pillow and cushion area A and the width in the left-right direction of the pillow and cushion area B are smallest.

2. Pillows and cushions using the fiber stuffing of claim 1.

3. The method for manufacturing a pillow and cushion using fiber stuffing as described in claim 1, characterized in that the pillow and cushion areas, which are the multiple stuffing parts, are both formed by heating and melting the fiber using the screw extrusion manufacturing device to extrude and mold the fiber, and after molding the fiber, stacking multiple sets of base layers at once using a compression mold and compressing and molding them.

4. 2. A method for manufacturing a pillow or cushion using fiber stuffing according to claim 1, wherein when the pillow or cushion is divided into multiple regions, each region is set to be 50 square centimeters or more, and when the pillow or cushion is divided into multiple layers, the thickness of each layer is set to be 10 centimeters or more, the density of each layer or region is set to be between 30 kilograms per cubic meter and 100 kilograms per cubic meter, adjacent layers or adjacent regions have a density difference of at least 10% or are set to have different fiber shapes and materials, and the hardness is set to be 60 to 100 Newtons, and each layer or region has a different hardness, and layers or regions with different hardness can be set to different colors to distinguish them.

5. A method for manufacturing pillows and cushions using fiber stuffing as described in claim 1, characterized in that the hardness of each stuffing portion is determined by the thickness and density of the fiber in the stuffing base layer, and in the case of manufacturing, the thickness of the fiber is first determined by a screw extrusion manufacturing device, and then the winding diameter and density of the fiber are determined.

6. The method for manufacturing pillows and cushions using fiber stuffing as described in claim 1, characterized in that the fiber thickness of each stuffing section is determined by the extrusion head of the screw extrusion manufacturing equipment, and by replacing the extrusion head with the corresponding model number, the molten raw material can be extruded into fibers of the corresponding thickness, and the hardness of the fiber stuffing can be determined based on the fiber thickness of each stuffing section.

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