WO2015154244A1 - Traitement de coussin élastique tridimensionnel à l'aide d'une pluralité de fils - Google Patents

Traitement de coussin élastique tridimensionnel à l'aide d'une pluralité de fils Download PDF

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Publication number
WO2015154244A1
WO2015154244A1 PCT/CN2014/074960 CN2014074960W WO2015154244A1 WO 2015154244 A1 WO2015154244 A1 WO 2015154244A1 CN 2014074960 W CN2014074960 W CN 2014074960W WO 2015154244 A1 WO2015154244 A1 WO 2015154244A1
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WO
WIPO (PCT)
Prior art keywords
wire
dimensional elastic
yarns
yarn
different
Prior art date
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PCT/CN2014/074960
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English (en)
Chinese (zh)
Inventor
陶义祥
Original Assignee
耀亿工业股份有限公司
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Priority to PCT/CN2014/074960 priority Critical patent/WO2015154244A1/fr
Publication of WO2015154244A1 publication Critical patent/WO2015154244A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
    • D04H3/033—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random reorientation immediately after yarn or filament formation
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Definitions

  • the invention relates to a process for a three-dimensional elastic pad, in particular to a three-dimensional elastic pad structure which is entangled in two layers and has different thickness and density of different yarns.
  • the structure of the cushion body is often applied to furniture, vehicles, machinery and other supplies, especially the parts in contact with the human body, mainly providing buffering, preventing collision, and improving the comfort of use;
  • the common cushion body is in the form of a seat cushion, Cushions, guardrails, handles, mattresses, etc., which are mainly used to provide the aforementioned requirements, and filled with materials with cushioning and elastic properties, such as air, liquid, foam, sponge, spring, elastic cotton, etc. Ways to achieve.
  • the structure is formed by a plurality of yarns in a mutually entangled crimping manner, and the yarns are combined in a plurality of manners so that the entire cushion body is supported, and the gap space between the yarns is matched to automatically
  • the cushioning effect of the recovery compared with other elastic materials, the elastic cotton yarn has better dispersibility and gas permeability, and the elasticity is more sensitive, and can be cut according to the structure during use. And the operation in use is also quite simple, and can be widely used in various fields.
  • the manufacturing process of the existing elastic cotton yarn such as the mesh structure and the manufacturing method of the cushion disclosed in the invention patent No. 083101192
  • the starting material of the manufacturing process mainly uses a thermoplastic elastic resin, from a plurality of fine pores,
  • the molten thermoplastic elastomer is injected downward at a temperature higher by 10 ° C to 80 ° C than the melting point, and the loops of the continuous linear body are formed in the melted state, and the individual loops are in contact with each other, and are fused into a three-dimensional random loop structure. At the same time, it is clamped by the stretching device, and then cooled continuously.
  • the annealing is performed at a temperature lower than the melting point by at least 10 ° C, wherein the continuous linear body has a fineness of 300-100,000 Danni, and the irregular loop
  • the diameter is 2-50 mm, and the apparent density of the mesh structure is 0.005-0.1 g/cm.
  • the preparation process includes: a: Feed melting: preparing a plastic material having elastic properties and heating Melting; b: blow molding: plastic is formed by blow molding to form a hollow tubular plastic strip; c: roll forming type: the plastic strip is sent to the blowing nozzle to add at least one auxiliary heater, and the plastic strip is sent to two Between the guide wheel and the adjusting wheel which are adjacent to each other and rotate at a constant speed, a part of the adjusting wheel and the guiding wheel are immersed in the cooling groove, so that the plastic strip is formed in a curl shape on the guide wheel, and is pressed by the adjusting wheel The plastic strip is formed to control the thickness; d: cooling: before the plastic strip enters the cooling tank, the plastic strips are welded to each other at a plurality of points, so that the joint forms a joint, and the cooling groove is cooled and solidified,
  • an elastic cotton yarn such as the three-dimensional network structure disclosed in the US Patent No. 7,993,794, and a method and apparatus for producing the three-dimensional network structure, which are manufactured from a raw material of a thermoplastic resin, wherein The resin forms a plurality of spirals and random entanglement to extrude a portion of the thermally bonded filaments, and the filament liquid is cooled to obtain a network structure, wherein the network structure has a single or a plurality of high density regions along a strip
  • the mesh structure of the sides or parallel sides is arranged in the thickness direction of the mesh structure.
  • the manufacturing technology of the elastic cotton yarn is the same, and the finished products are all composed of yarns in a curled entangled state; however, the above-mentioned processes are still respectively belonging to elastic cotton pads for different structures, and different manufacturing applications are applied.
  • the first case is to make a single wire diameter size, a single material, and the same density of elastic mesh structure;
  • the second case is to manufacture hollow wire yarn, single wire diameter size, single raw material, and the same density of elasticity The net body structure;
  • the third case is a single wire diameter size, a single material, and an elastic mesh structure with different densities.
  • the three-dimensional elastic pad process of the multiple wire disclosed in the present invention comprises the following steps:
  • the embossed spinning mold has at least a first line body pressing zone and a second wire body ramming zone Corresponding to each of the ejection outlets, the first linear body pressing zone and the second linear body clamping zone respectively have different aperture sizes and different aperture setting densities, so that the plastic raw materials entering the ejection openings respectively pass through the first linear body After the pressing zone and the second wire body ramming zone, at least two kinds of wire yarns having different wire diameters and densities are respectively extruded;
  • Thickness adjustment a wire thickness adjusting device disposed under the water surface of the water tank is connected to each of the wire yarns pressed by the embossed spinning mold, and each of the wire yarns is concentrated and compressed together to form a preset by a thickness adjusting die Thickness dimension
  • each of the wire yarns is entangled with each other by the thickness adjusting device and the cooling water to form a three-dimensional elastic yarn having a continuous shape and having at least two layers of the yarns;
  • the three-dimensional elastic yarn is guided out of the water surface at a preset speed by a guiding device, and is connected with the guiding device by a cutting device, and the continuous guiding is extended.
  • the three-dimensional elastic yarn is cut to form a predetermined shape and size, and a three-dimensional elastic mat formed by each of the yarns having at least two different wire diameters and different densities is completed.
  • the invention also provides a three-dimensional elastic pad process for multiple wires, which comprises the following steps:
  • Thickness adjustment a wire thickness adjusting device disposed under the water surface of the water tank is connected to each of the wire yarns pressed by the embossed spinning mold, and each of the wire yarns is concentrated and compressed together to form a preset by a thickness adjusting die Thickness dimension
  • each of the wire yarns is entangled with each other by the thickness adjusting device and the cooling water to form a three-dimensional elastic yarn having a continuous shape and having at least two layers of the yarns;
  • the three-dimensional elastic yarn is guided out of the water surface at a preset speed by a guiding device, and is connected with the guiding device by a cutting device, and the continuous guiding is extended.
  • the three-dimensional elastic yarn is cut to form a predetermined shape and size, and a three-dimensional elastic mat formed by each of the yarns having at least two layers of different plastic materials, different wire diameters, and different densities is completed.
  • the first wire body pressing zone has a pore size value ranging from 0.5 to 3.0 mm; and the second wire body binder zone has a pore size value ranging from 0.1 to 1.0 mm.
  • the second line body lacing area has a hole distance dimension value ranging from 10 to 20 mm; and the first line body escaping area has a hole distance distance dimension value ranging from 10 to 50 mm; each of the first line The aperture distance dimension of the two sides of the body pressing zone and the second wire body ramming zone ranges from 1 to 50 mm.
  • the distance dimension of the embossed die to the water surface of the sink is 100-1000 mm.
  • the guiding device guides the three-dimensional elastic yarn to the cutting device by the thickness adjusting device at a constant speed, and the guiding speed ranges from 0.1 to 3. m/min.
  • the thickness adjusting device has a thickness adjustment mode of relative linear displacement to adjust the overall width of the three-dimensional elastic yarn.
  • the plastic raw material is a material of a polyolefin copolymer PEO, a polyolefin and a rubber copolymer PET, a nylon-based elastomer Nylon, and a polyurethane-based elastomer PU.
  • the three-dimensional elastic pad has a support layer and an elastic layer, wherein the support layer has a large wire diameter and a density of 15-100.
  • the yarn of kg/m3 is entangled together; the elastic layer is composed of a wire having a small wire diameter and a density of 5-90 kg/m3.
  • the three-dimensional elastic pad has a supporting layer and an elastic layer, wherein the supporting layer is made of a plastic material, and has a large wire diameter and a density of 15-100.
  • the yarn of kg/m3 is entangled together;
  • the elastic layer is composed of another plastic material, which is composed of a wire having a small wire diameter and a density of 5-90 kg/m3.
  • the present invention has the following beneficial effects:
  • the three-dimensional elastic pad process of the multiple wire of the present invention has a embossed spinning die which is provided with at least a two-line body squeezing zone of different pore size and pore size density, thereby forming a three-dimensional elastic with different pore sizes and densities of at least two layers. Yarn structure.
  • a three-dimensional elastic pad process for multiple wires which utilizes a thickness adjustment device having a thickness adjustment effect to concentrate and entangle the drawn yarns in a predetermined space to form a pre-form
  • a three-dimensional elastic yarn structure having a thickness which utilizes a thickness adjustment device having a thickness adjustment effect to concentrate and entangle the drawn yarns in a predetermined space to form a pre-form
  • the three-dimensional elastic pad process of the multiple wire of the present invention wherein the three-dimensional elastic pad is a support layer and an elastic layer structure having at least two different wire diameters and different densities, so that they have high support portions and high elasticity at the same time.
  • the buffer portion is located on an elastic mat, and at the same time achieves the double effect of high support force and good cushioning property.
  • the three-dimensional elastic pad process of the multiple wires of the present invention can be further combined with the separate melting furnaces to respectively melt different raw materials, and the respective wire body pressing regions corresponding to different pore sizes and different pore diameters can be entangled and formed differently.
  • the material layer is applied to an elastic mat while at the same time achieving the function of changing the material with its characteristics.
  • FIG. 1 is a flow chart of a manufacturing process in accordance with a preferred embodiment of the present invention.
  • FIG. 2 is a schematic view of a process tool according to a preferred embodiment of the present invention.
  • Figure 3 is a schematic view of a embossed spinning die in accordance with a preferred embodiment of the present invention.
  • FIG. 4 is a view showing a state of use of a thickness adjusting device according to a preferred embodiment of the present invention.
  • FIG. 5 is a schematic view of a three-dimensional elastic pad according to a preferred embodiment of the present invention.
  • Figure 6 is a flow chart showing the manufacture of another embodiment of the present invention.
  • FIG. 7 is a schematic view of a process tool according to another embodiment of the present invention.
  • FIG. 8 is a schematic view of a three-dimensional elastic pad according to another embodiment of the present invention.
  • Figure 9 is a schematic view of a process tool according to still another embodiment of the present invention.
  • Figure 10 is a schematic view of a embossed spinning die in accordance with still another embodiment of the present invention.
  • FIG. 11 is a schematic view of a three-dimensional elastic pad according to still another embodiment of the present invention.
  • Figure 12 is a schematic view of a embossed spinning die in accordance with a further embodiment of the present invention.
  • Figure 13 is a schematic view of a process tool according to a further embodiment of the present invention.
  • the three-dimensional elastic pad process of the multi-wire material mainly comprises the following steps:
  • a plastic raw material is melted in a melting furnace 10, which has a feed port 11 poured into the plastic raw material, and a predetermined portion of the melting furnace 10 is provided with two injection outlets (12, 13) for discharging;
  • the plastic raw material can be used for materials such as polyolefin copolymer PEO, polyolefin and rubber copolymer PET, nylon elastomer Nylon, and polyurethane elastomer PU.
  • the embossed spinning mold 20 is connected to each of the ejection openings (12, 13), and the embossed spinning mold 20 has a first linear body squeezing area 21 and a second linear body staking area 22 Corresponding to each of the ejection outlets (12, 13), each of the first linear body urging zone 21 and the second linear body mortal zone 22 is provided with a plurality of yoke insertion holes (211, 221) respectively. Each has a different pore size and a different pore size setting density, so that the plastic raw materials entering the respective ejection openings (12, 13) are respectively pushed out after passing through the first linear body holding zone 21 and the second linear body holding zone 22 respectively. Two kinds of yarns (31, 32) with different wire diameters and densities are formed.
  • Each of the wire yarns (31, 32) pressed by the embossed spinning mold 20 is engaged by a thickness adjusting device 50 disposed under the water surface of a water tank 40, and each of the yarns is replaced by a thickness adjusting die 51.
  • a thickness adjusting device 50 disposed under the water surface of a water tank 40, and each of the yarns is replaced by a thickness adjusting die 51.
  • Each of the yarns (31, 32) is entangled with each other after the thickness adjusting device 50 and the cooling water entering the water tank to form a three-dimensional elastic yarn 30 having a continuous shape and two layers of the yarn.
  • the three-dimensional elastic yarn 30 is guided out of the water surface by a guiding device 60 at a preset speed, and is connected to the guiding device 60 by a cutting device 70 to cut the three-dimensional elastic yarn 30 continuously guided and extended. Forming a predetermined shape and size, a three-dimensional elastic pad 80 formed by each of the two different wire diameters and different densities is completed.
  • the three-dimensional elastic pad process with multiple layers and multiple wires is synchronously completed in the production line, and the embossed yarn mold 20 is pressed to form at least two layers of three-dimensional elastic yarn structures with different apertures and different densities, and at the same time
  • the dual effect of high support force and good cushioning property, combined with the thickness adjustment device 50, has the effect of thickness adjustment, so that the three-dimensional elastic yarn 30 has already conformed to the preset thickness before cutting, and can also form a preset thread yarn according to requirements (31).
  • the number of layers or the material of each layer of yarn is changed.
  • the present invention is carried out in sequence with the above five processes, and the three-dimensional elastic pad 80 is manufactured by a consistent operation of a production line.
  • the melting furnace 10 is used to set two outlets (12, 13) for discharging; (b) cooperating with the setting of the embossed spinning mold 20, and respectively arranging each of the first line body clogging area 21 and the second line body escaping area 22 to respectively correspond to the respective ejection openings (12, 13)
  • each of the first line body occlusion area 21 and the second line body escrow area 22 respectively have a plurality of yoke holes (211, 221) having different aperture sizes and different densities, and the yoke holes are arranged.
  • the embossed spinning mold 20 of the present invention has a first line body squeezing area and a second line body escrow area (21, 22), the difference being that each of the first line body escorting area 21 and the second line body escrow area 22 each of the yarn insertion holes (211, 221) having different aperture sizes, and the distance between the respective yarn insertion holes (211, 221) are also different; further, the first line body
  • the yarn opening hole 211 of the pressing zone 21 has a pore size value ranging from 0.5 to 3.0 mm, and the aperture distance is relatively large, that is, the density is low, and the size value ranges from 10 to 50 mm;
  • the second wire body pressing zone 22 has the same
  • the aperture size of the yoke hole 221 ranges from 0.1 to 1.0 mm, and the aperture distance is small, that is, the density is high, and the size range thereof is 10-20 mm; each of the first line body occlusion area 21 and the second line body
  • the distance dimension (d) of the embossed spinning mold 20 to the water surface of the water tank 40 of the present invention is 100-1000 mm; the guiding device 60 guides the three-dimensional elastic yarn (30) at a constant speed and is pulled by the thickness adjusting device 50. Up to the cutting device 70, the guiding speed has a value ranging from 0.1 to 3. m/min.
  • the three-dimensional elastic pad 80 of the present invention has a support layer 81 and an elastic layer 82.
  • the support layer 81 is composed of a wire mesh 32 having a large wire diameter and a low density, and the wire yarn is entangled. 32 tangled density values range from about 15-100 Kg/m3, Danny number 1500-80000D;
  • the elastic layer 82 is composed of a wire 31 having a small wire diameter and a high density, and the wire entangled density value range is about 5-90. Kg/m3, Danny number 60-10000D.
  • the density according to the invention is calculated as the ratio of the mass of the product to the measured apparent volume, the volume of which contains the entangled voids of each of the strands (31, 32).
  • the present invention utilizes the embossed spinning mold 20, which is provided with at least a first line body squeezing area 21 and a second line body squeezing area 22 having different aperture sizes and aperture densities, each of which is provided with a preset aperture and a density differently.
  • Each of the yarns is inserted (211, 221), so after the feeding of the respective ejection ports (12, 13) respectively, each of the first line body pressing area 21 and the second line body holding area 22
  • the three-dimensional elastic yarn 30 structure having different pore diameters and densities of at least two layers or more is separately formed, and the problem that the prior art can only produce the same pore diameter or the same density can be solved.
  • the present invention utilizes the thickness adjustment device 50, which has a thickness adjustment effect, to concentrate and entangle the entangled yarns (31, 32) in a predetermined space between the thickness adjustment dies 51, In order to form the structure of the three-dimensional elastic yarn 30 of a predetermined thickness, the subsequent work of thickness cutting can be saved to achieve the effect of reducing the manufacturing cost.
  • the three-dimensional elastic pad 80 manufactured by the process of the present invention has a support layer 81 and an elastic layer 82 structure having at least two different wire diameters and different densities, so as to have a high support portion and a high elastic buffer portion at the same time.
  • the three-dimensional elastic pad 80 of the present invention can achieve the double effect of high support force and good cushioning property due to different hardness on both sides.
  • the user can flip the stereo elastic pad 80 as needed, so that the use is extremely convenient, that is, it has high practicability.
  • a three-dimensional elastic pad process mainly includes the following steps:
  • At least two plastic raw materials are separately melted in a melting furnace 10, and are respectively discharged from at least one of the injection ports (12, 13) of each of the melting furnaces 10.
  • the embossing die 20 is connected to each of the ejection openings (12, 13), and the embossed spinning mold 20 has a first linear body squeezing zone 21 and a second linear body staking zone 22 to respectively correspond to the respective ejection openings.
  • each of the first line body holding area 21 and the second line body pressing area 22 respectively have a plurality of yarn opening holes (211, 221) of different aperture sizes and different aperture setting densities, so that each The plastic raw materials entering the ejection outlets (12, 13) pass through the first linear body pressing zone 21 and the second linear body pressing zone 22, respectively.
  • at least two types of yarns (31, 32) having different wire diameters and densities are formed.
  • Each of the wire yarns (31, 32) pressed by the embossed spinning mold 20 is engaged by a thickness adjusting device 50 disposed under the water surface of the water tank 40, and each of the yarns (31, 32) is used by the thickness adjusting mold 51. Concentrated and co-compressed to form a preset thickness dimension.
  • the wire yarns (31, 32) are subjected to the thickness adjusting device 50 and the cooling water, they are entangled with each other to form at least two layers of the three-dimensional elastic yarn 30 having a continuous shape.
  • the three-dimensional elastic yarn 30 is guided out of the water surface by a guiding device 60 at a preset speed, and is connected to the guiding device 60 by a cutting device 70 to cut the three-dimensional elastic yarn 30 continuously guided and extended.
  • a preset shape and size that is, completing a three-dimensional elastic pad 80 formed by at least two layers of different plastic materials, different wire diameters, and different density yarns.
  • the two different raw materials are mainly melted by using at least two melting furnaces 10, and different raw materials are fed from the respective injection outlets (12, 13), and the respective outlets of the different raw materials (12, 13) ) respectively corresponding to the first line body pressing zone 21 and the second wire body pressing zone 22, then the yarns (31, 32) of the different thread materials are different except for different wire diameters and densities.
  • the three-dimensional elastic pad 80 is manufactured, and each of the support layer 81 and the elastic layer 82 is applied to different materials, and has The wire yarns (31, 32) which are bent at different wire diameters and different densities are further entangled and formed.
  • the three-dimensional elastic pad 80 of the embodiment has the characteristics of different raw materials, and at the same time, the raw materials are matched with the characteristics thereof.
  • the efficiency of the transformation, and the richness of the application, is a very practical process.
  • Other manufacturing methods, tools and mold usage patterns, environmental parameter settings, and expected efficacy are the same as in the previous embodiments.
  • a manufacturing process of a three-layer three-dimensional elastic pad is provided.
  • the melting furnace 10 is provided with a three-shot outlet (12, 13, 14).
  • Corresponding to the first line body pressing area 21, the second line body pressing area 22, and the third line body pressing area 23 (,, and the first line body pressing area 21, the second line body pressing area 22, and the third line body holding area 23 respectively have different apertures and different density distributions of the yarn holes (211, 221, 231) ).
  • the first line body pressing area 21, the second line body pressing area 22, and the third line body pressing area 23 respectively press the respective thread diameters (31, 32, 33) of different wire diameters and different densities.
  • the three-dimensional elastic pad 80 is manufactured, and has a support layer 81 and an elastic layer 82 which are different in support and hardness.
  • an intermediate layer 83 each layer having different wire diameters and different density of yarns; therefore, the process of the present invention can be consistently produced according to requirements, and the layers have different supports and hardnesses.
  • the present invention has a relatively varied use and is widely used in various fields, different products, and different buffering conditions.
  • a further embodiment of the present invention is an embodiment of staggered at least two yarns of different wire diameters and densities, wherein at least two wire diameters (31, 32) are pressed in step b.
  • the yarn forming, each of the ejection openings (12, 13) is arranged in an appropriate number and at a predetermined position, and is connected to the embossed spinning mold 20 to cooperate with the embossed spinning mold 20 and each of the ejection openings (12).
  • the three-dimensional elastic pad process of the multiple wire disclosed in the present invention provides a continuous operation process of a production line, which is formed by more than one layer, and each layer has different wire diameters and different densities to achieve different support effects.
  • the three-dimensional elastic pad utilizes each of the ejection openings to correspond to each of the line body embossing areas of different apertures and densities, and at the same time, each of the different diameters and different densities of the yam is pressed, and then thickness-adjusted and entangled.
  • the three-dimensional elastic pad is manufactured, and has a plurality of elastic layers belonging to different support and hardness, and the yarns of each layer have different wire diameters and densities respectively, and can be formed according to requirements.
  • the preset number of yarn layers or the material of each layer of yarn can effectively reduce the manufacturing cost, and the use of multiple raw materials makes the three-dimensional elastic mat extremely versatile, and can be widely used in various industries to respond to various fields.
  • the different requirements of the products, and the elastic pad technology of the multi-wires which are highly practical, make the whole industry practical and cost-effective.

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  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

La présente invention concerne un traitement de coussin élastique tridimensionnel à l'aide d'une pluralité de fils, comprenant les étapes suivantes : (a) la fusion de matière première en plastique, et respectivement extrudée à partir d'au moins deux ouvertures d'éjection ; (b) le roulement et la mise en forme de fils ayant au moins deux diamètres de fil ; la fixation du moule de roulement de fil au niveau de chaque ouverture d'éjection, le moule de roulement de fil ayant au moins deux zones de roulement de fil correspondant respectivement aux ouvertures d'éjection ; la première zone de roulement de fil et la seconde zone de roulement de fil ont respectivement différentes tailles d'ouverture et différentes densités de réglage d'ouverture, de telle sorte que la matière première en plastique entrant dans l'ouverture d'éjection est roulée dans la première zone de roulement de fil et la seconde zone de roulement de fil dans au moins deux moules de fil ayant différents diamètres et densités de fil. Le traitement de coussin élastique tridimensionnel à l'aide d'une pluralité de fils comprend des moules de roulement de fil, les moules de roulement de fil comprenant au moins deux zones de roulement de fil ayant différentes tailles d'ouverture et densités de réglage d'ouverture de façon à rouler et former plus de deux couches de structures de fil élastique tridimensionnel ayant différentes tailles d'ouverture et densités d'ouvertures.
PCT/CN2014/074960 2014-04-09 2014-04-09 Traitement de coussin élastique tridimensionnel à l'aide d'une pluralité de fils WO2015154244A1 (fr)

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