TW422901B - Method of producing spun-bonding, melt-spinning, multilayered composite nonwoven cloth and product thereof - Google Patents

Abstract

The present invention provides a method of producing a spun-bonding, melt-spinning, multilayered composite nonwoven cloth and a product thereof. The method comprises separately feeding each raw material into a spinning box to be spun into fibers and separately laminated on a forming net to form a structure of a first spun-bonding spinning net layer/more than one layer of bi-component composite melt-spinning net layer/a second spun-bonding spinning net layer, in which the average diameter of the fiber of the bi-component composite melt-spinning net layer is smaller than the diameter of the fiber of the spun-bonding spinning net layer; performing a thermal treatment to bond and form a nonwoven cloth. The bi-component composite melt-spinning net layer is consisted of a long fiber of a bi-component composite material. The spun-bonding spinning net layer can be consisted of a long fiber of a single component or a long fiber of a bi-component composite material. Therefore, a nonwoven cloth with higher air permeability and water pressure resistance, and a smaller hole and a lower pressure difference can be made.

Description

422901 A? B7 V. Description of the invention (1) ο 11 5 11 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs ¾ ο 2 The present invention relates to No. 87105379 "Manufacturing method of spunbond-meltblown multilayer composite nonwoven fabric and its products "Additional patent (1) in the patent case, more specifically, 'is mainly directed to the manufacturing used in this patent case to produce non-woven products with S / M / M / S & BS / M / M / BS structure The method and its device are improved to produce non-woven products with different structures, so that the non-woven products with different structures have higher air permeability, more resistance to water pressure, smaller holes and lower pressure difference. According to the applicant, on April 09, 1987, the application for the invention of "manufacturing method and product of spunbond-meltblown multilayer composite nonwoven fabric" No. 87105379 was filed (hereinafter referred to as the parent case). The invention completed by the main technical content of the case is the improvement of one of the manufacturing steps in the main technology of the mother case, and the manufacture of non-woven fabrics with different structures due to changes in the manufacturing method and its device. Therefore, the following background description of the supplementary case is clearly shown in the drawing for the improvement of the manufacturing method of the mother case and its products: Refer to the first figure for details. Schematic of the embodiment, the device includes front and rear two first and second spunbond spinning devices 2, 3 from front to back, and two first and second melts between the front and rear spunbond spinning devices The spray spinning device 4 and 5 are used to send the spunbond and meltblown raw materials into the corresponding spinning boxes 25, 44 and milk to draw fibers, and they are layered on the forming net 61, and the lower layer Sequential formation of the top-spunbond The screen layer / first-time spinning screen layer / second and second '_structure of the spinning screen layer' and the average diameter of the spun screen layer is much smaller than the fiber diameter of the spunbond spun screen layer, and then Then by _______ page 4 wood paper from the degree 剌 towel _ magic transfer {(锖 read the precautions on the back #fill κ page) 5 5 1 * 422901 Description of the invention (2j A7 B7 Ministry of Economic Affairs Central Bureau of Standards- Printed by the industrial and consumer cooperatives 2 Heat treatment of the overheated pressing wheel 8 to thermally bond the fibers to form an S / M / M / S structure: woven fabric, which is wound into a roll on a take-up device 9 The screen layer is an early-component material long fiber; by this, a non-woven fabric with high air permeability, high water pressure resistance, small holes, and low pressure difference can be achieved. Furthermore, the mother case can be shown in the second figure The first-best practice of the manufacturing process and its device ', from the lower layer to the upper layer, sequentially form a two-component composite first spunbond spun silk screen layer / first meltblown spun silk screen layer / second meltblown spun silk screen layer / The structure of the two-component composite second spunbond spun silk screen layer is then heat-treated by a hot air box 7 to thermally bond the fibers to form a non-woven fabric with a BS / M / M / BS structure. And is wound into a roll on a take-up device 9. The spunbond spun silk screen layer is a two-component composite material long fiber; the non-woven fabric manufactured in this way can form a high bulky and soft structure. The manufacturing process and its device can achieve the purpose of producing a non-woven fabric with high air permeability, high water pressure resistance, small holes and low pressure difference; however, the meltblown spun silk screen layer is composed of single-component material long fibers (M) Only spunbond spun silk screen layer can be composed of single component long fiber (s) or two-component composite long fiber (BS); if the meltblown spun screen layer is made of two-component composite long fiber (BM) composition, the non-woven products manufactured must be better than the non-woven products manufactured in the mother case. There is a lack of functional perfection in the mother case. The inventor of this case is actively engaged in research and improvement, in order to perfection, and then research Create the invention "spinning | accounting_ meltblown multilayer composite nonwoven fabric manufacturing method and its product addition (~) Λ. The main object of the present invention is to provide a method for manufacturing a spunbond-meltblown multilayer composite non-woven fabric and its product addition (1), so that the manufactured non-woven ruler can be used in the middle Fujian, Fujian and Song dynasties. CN4) f 210'〆 公 牦)

(Please read the precautions on the back before filling in {? 5 pages; I, · 0 5 10 15 4229 〇 1 Α7 137 Description of the invention (3) '^ Ministry of Economic Affairs, China Standards Bureau, Shellfish Consumer Cooperative, Printing and Printing 20 βP is more breathable, more resistant to water and dust, smaller pores and lower pressure. 3 The main feature of the present invention is that the meltblown spun silk screen layer is composed of two-component composite long fibers (BM). And the spunbond spun silk screen layer can be composed of single-component material long fibers (S) or two-component composite material long fibers (BS), and can be manufactured with the improvement of the manufacturing method and its device. / BM / BM / S structure and BS / BM / BM / BS structured non-woven fabrics, in order to achieve the purpose of the present invention, the manufactured non-woven products have higher air permeability, more resistance to water pressure, smaller holes and pressure difference The lower. The method of the present invention includes the following steps: Step 1: by a first spunbond spinning device, the raw materials are sent to a spinning box to be drawn into spunbond spun fibers, and the spunbond spun fibers are made. The layer is on the layer-forming device to form the first spunbond spun silk screen layer; Step 2: On the first spunbond spun silk screen layer described above, the layer is formed to form more than one layer of the two-component composite knitting spun silk screen layer. Among them, the average diameter of the fibers of the two-component composite spun-jet spun silk screen layer is much smaller than the fiber diameter of the spunbond spun silk screen layer; the two-component composite melt-blown spun silk screen layer sends raw materials to more than one The corresponding two-component composite melt-blown spinning fiber is drawn from the corresponding spinning box, and the discharged two-component composite melt-blown spinning fiber is layered on the first spunbond spun silk screen layer respectively to form more than one layer of double Component composite meltblown spun silk screen layer; step three: on the one or more two-component composite meltblown spun silk screen layers in the second step above, a layer is formed to form a second spunbond spun silk mesh layer; wherein, the second The spunbond spun silk screen layer uses a second spunbond spinning device to send the raw materials. The spunbond spun fiber is drawn from the corresponding spinning box, and the discharged spunbond fiber collection layer has a first spunbond spun silk mesh layer in the layer already collected.

The ruler of the paper is applicable to the Chinese national standard (CNS page 6) Λ 柳 棉 ί 2! 0'X enthalpy) (Please read the precautions of the back '6 before filling this page) 422901 V. Description of the invention (ψ) Α7 Β7 10 15 and above two-component composite knitting spun silk screen layer to form a second silk adhesive, square silk reed, and step four: pass the net layer formed by the above steps through a heat treatment device to Bonded into non-woven products. Regarding the technical content, structure, and features used by the present invention to achieve the above-mentioned objectives and effects, the "preferred embodiments of the present invention-the accompanying drawings are described below, and it is believed that the technical idea of the present invention will be further understood. [Brief description of the drawings] The first diagram is a schematic diagram of the first preferred embodiment of the manufacturing process of the master case and its device. The second diagram is a schematic diagram of a second preferred embodiment of the manufacturing process and apparatus of the mother case. The third diagram is a schematic diagram of the first preferred embodiment of the manufacturing process and the device of the present invention. The fourth diagram is a schematic diagram of a second preferred embodiment of the manufacturing process and the device of the present invention. The fifth figure is a schematic cross-sectional view of the material of the present invention. [Comparison Table of Component Symbols of the Invention] (Please read the precautions on the back before filling out this page) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 20 2 The first spunbond spinning device 21 Barrel 22 Extruder 23 Filter 24 pump 251 cooling chamber 26 normal temperature south speed wind extended airflow 2 'first spunbond spinning device 21' bucket 22 'extruder 23' filter 25 spinning box 252 outlet 3 second spunbond spinning device Page 7

The paper scale is remotely controlled by China National Standards of Standards (CNS), 8 gauge (210 × 297), 4 2 2 9 0 A7 B7 V. Description of the invention (^) 10 3 Second spunbond spinning device 41 Barrel 42 Extrusion Machine 43 filter 44 pump 451 outlet 5, second meltblown spinning device 55 spinning box 6 stacking device 62 suction device 8 hot press wheel 4 first bright jet spinning device 41 'barrel 42' extrusion Machine 43 'filter 45 spinning box 46 high-temperature high-speed wind extended airflow 54 pump 551 exit 61 molding wire 7 hot air box winding device 15 printed by I Industrial Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 20 First, please refer to the third figure It is the first preferred embodiment of the present invention. The shai device includes a first spunbond yarn spinning device 2, a first melt-blown spinning device 4 ', and a second melt-blown spinning from front to back. Silk device 5, and a second spunbond spinning device 3, wherein the structure and operation of the first and second spunbond spinning devices 2, 3 are the same as the mother case, but for the convenience of review, here is the The structure of the two parts is described again with the same reference numerals as the mother case: In the first spunbond spinning device 2, the raw materials are fed into one In 21, the melted state is extruded through an extruder 22, and the spunbond material that has been melted after extrusion is filtered through a filter 23 for impurities, and then sent to a spinning by a certain amount of pump 24 The box 25 is drawn into spunbond spun fibers and cooled and shaped by a cooling chamber 251 located below the spinning box 25, and a normal-temperature high-speed wind extending airflow 26 is introduced at an outlet 252 at the lower end of the cooling chamber 251 to spin the spunbond. Pulling force is applied to the fiber to discharge the spunbond spun fiber from the exit * (Please read the precautions on the back before filling this page)

The size of this paper is China National Cotton Standard (CNS) Λ4 Regulation (210X297) 422901 A7 I ----------- B7 V. Description of the Invention (6). — 2 spunbond spun The silk fibers are stacked downwards in a layering device 6 for conveying the month | J-into the forming net 61; wherein, under the forming net 61, a forming device 62 with a windmill is applied to the forming layer downward. The suction power of the fiber causes the fiber to be layered on the forming net 61 to form the first spunbond 5 (SPUNBONND ,,, S ") spun silk screen layer. The first and second spunbond layers in the middle In the melt-blow spinning device 4, 5, 5, the raw materials are sent to the barrels 41, 41 ', respectively, and then the corresponding extruders 42, 42 are heated to a smelting and melting state and extruded to form The melt-blown raw material in the molten state passes impurities in the corresponding filters 43 and 43 ', and is simultaneously supplied to two spinning boxes 45 and 55 by a certain amount of 10 pumps 44, 54 respectively, and is drawn into melt-blown spinning fibers. And introduce high-temperature and high-speed wind extending airflow 46 at the outlets 451 and 551 at the lower ends of the two spinning boxes, respectively, and apply a pulling force to the melt-blown spinning fiber to melt the melt-blown spinning fiber. It is discharged from the outlet, and the discharged meltblown spinning fibers are stacked and stacked on the forming wire 61 that is conveyed forward, and are stacked on the first spunbond spun silk screen layer of the above 15 to form a first dual component. Composite meltblown spun silk screen layer (BICOMPONENT MELTBL0WN, "BM") and the second two-component composite meltblown spun silk screen layer (BM); the average diameter of the fibers of these two-component composite meltblown spun silk screen layer is much smaller than The fiber diameter of the first spunbond wire mesh layer a is printed by the Consumer Cooperative of the Central Bureau of the Ministry of Economic Affairs of the Ministry of Economic Affairs and printed on the two meltblown devices, and then a second spunbond spinning device 20 is provided. In the second spunbond spinning device 3, the device is the same as the first spunbond silk device 2, which sends the spunbond raw material from a bucket 21, through an extruder 22, a filter 23, and a fixed pump 24 to A spinning box 25 is drawn into spunbond spun fibers and cooled and shaped by a cooling chamber 251, and a normal-temperature high-speed wind extending airflow 26 is introduced at an outlet 252 at the lower end of the cooling chamber 251. The spunbond spun _ — page 9 Private paper ruler. Applicable to China National Standard (CNS) h specification (210 × 297ϋΤ ~~ 一422901 Printed by the Male Workers Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. B. V. Description of the invention () ---- Silk is applied with a pulling force to discharge the spunbond spun fibers from the outlet. The lower stacking layer is stacked on the forming wire 61, and the first spunbond spun wire mesh layer, the first two-component composite melt-blown spun wire mesh layer, and the second two-component composite melt layer are stacked on the forming net 61. On the spun-spun silk screen layer, a 5th layer is formed. The above-mentioned mesh layer structure has the first spunbond spun silk screen layer / the first two-component composite melt-blown spun silk screen layer / the Two two-component composite meltblown spun silk screen layer / second spunbond spun silk screen layer, that is, the mesh layer of the S / BM / BM / S structure. After forming the mesh layer of this structure, it is sequentially conveyed through a The hot-air box 7 and a hot-pressing wheel 10 8, the hot-air box 7 and the hot-pressing wheel 8 form a heat treatment device for bonding a non-woven fabric layer. The temperature of the hot air box 7 is set at a temperature between the melting point of the high melting point fiber component and the low melting point fiber component of the two-component composite melt-blown spinning screen layer, so that the low-melting fiber in the two-component composite melt-blown spinning screen layer becomes It is hot-melted to make the fibers stick together. At the same time, the network layer has undissolved fibers 15 to make the mesh layer bulky, so that the fibers are thermally bonded to form a S / BM / BM / S structured non-woven fabric. The winding device 9 is wound into a roll, and the non-woven fabric manufactured by this method can form a highly bulky and soft tissue. The first and second spunbond spun silk screen layers of the present invention are continuous long fibers. The material may be a single-component material such as polypropylene (PP), polyester (PET), nylon (NYLON), or the like. Long fibers; the first and second two-component composite meltblown spun silk screen layers are ultrafine fibers, and the materials are composite polypropylene (PP) / polyethylene (PE) and polyester (PET) / Polyethylene (PE), poly (vinyl acetate) / polypropylene (pp), polypropylene (pp) / low-melting polypropylene. (C0PP), polyester (PET) / low-melting polyester (c〇PET), High melting point nylon _ page 10 (Please read the precautions on the back before filling in this page)

Printed meals at the Consumers' Cooperative of the Central Government Bureau of the Ministry of Economic Affairs Γ Λ 229 01 Α7 _____ Β7, V. Description of the invention (~~~-(NYLON) / Low melting point nylon (NYL〇N), etc. For those who spin-spun superfine fibers, these two-component composite melt-blown spinning fibers have one component having a higher melting point and the other component having a lower melting point. In a preferred embodiment of the present invention, the average fiber diameter is between Below 3μπι is the preferred five, that is, the average diameter of the fibers of the two-component composite meltblown spun wire mesh layer is much smaller than the fiber diameter of the spunbond spun wire mesh layer, so that the mesh layer hole of the present invention is smaller. 'And has the characteristic of low pressure difference. Various conditions and parameters during the manufacture of the first preferred embodiment of this case are the same as those of the parent case, and will not be repeated here. 10 Furthermore, the second preferred embodiment of the present invention is as follows As shown in the fourth figure, the first and second two-component composite melt-blown spinning screen layers are still two-component composite melt-blown spinning ultrafine fibers (BM), so the first and second melt-blown The structure of the spinning devices 4 ', 5 is unchanged; as for the first and second spinning The spun screen layer is a continuous two-component composite long fiber (BIC0MP0NENt sp. BOND, 15 BS), and the material can also be composite polypropylene (pp) / polyethylene (PE), polyester (pet) ) / Polyethylene (PE), polyester (PET) / polypropylene (PP), polypropylene (PP) / low melting point polypropylene (copp), polyester (PET) / low melting point polyester (C0PET), High melting point nylon (NYL〇N) / low melting point nylon (NYL〇N) or the like, to produce side-by-side or sheath-core type (depending on the structure and type of the spin box) Viscospun long fibers. Among the two-component composite spunbond spun fibers, one component has a higher melting point and the other component has a lower melting point; therefore, the first spunbond spinning device of the second preferred embodiment of the present invention 2 'Compared with the first spunbond spinning device 2 of the first preferred embodiment of the present invention, an additional barrel 21', an extruder 22, and a filter 23 are provided to raise _! Called through — (please first Please read the notes on the back of the page and fill out this page) I -I II, • — ― II － 5 ο 5 422901 A? B7 Printed by the Central Standards Bureau of the Ministry of Economic Affairs ΗConsumer Cooperatives ο 2 、 Description (^) '-for another component of spunbond spun long fiber, and connected to the first-spunbond spinning device 2' in the same spinning box 25, so that the spinning box holder is simultaneously drawn out with double The composite spunbond spun fiber is wounded, so that the first spunbond spun silk screen layer laminated on the forming net 61 has a two-component composite spunbond spun fiber; similarly, the second spunbond spinning device 3 'also Using the same device, the second spunbond spunbond mesh layer laminated on the forming net 61 has a bicomponent composite spunbond spun fiber: by the above device and method, the net layer has a bicomponent composite spunbond spun fiber The structure of the screen layer / two-component composite first meltblown spun screen layer / two-component composite second melt-blown spun screen layer / two-component composite second spunbond spun screen layer structure, namely / BM / BM / BS The mesh layer of the structure, after forming the mesh layer of the structure, is conveyed through the hot air box 7, and the temperature of the hot air box 7 is set between the two-component composite spunbond spun silk screen layer and the two-component composite melt-blown spun silk screen layer. The temperature between the melting point of the high melting point fiber component and the low melting point fiber component makes the melting point of the two-component composite spunbond spun silk screen layer Low fibrous component hot melt, and two-component composite smelting. The low fibrous component hot melt point in the screen layer can make the fibers stick together, and the unmelted fiber in the mesh layer can make the mesh layer bulky. In order to make the fibers thermally bond to form a BS / BM / BM / BS structured non-woven fabric, and roll it into a roll on a take-up device 9, the non-woven fabric manufactured in this way can form a relatively bulky and very soft tissue. The structure of the non-woven fabric manufactured by the above device includes a spunbond spun silk screen layer, a melt-blown spun silk screen layer, a melt-bonded spun silk screen layer, and a spunbond in order, as shown in the fifth figure. Woven wire mesh layers, such as S / BM / BM / S and BS / BM / BM / BS, are more structured than those manufactured by the parent with s / m / m / S and BS / M / M / BS structures. For bulkiness and softness, the paper on page 12 of this issue is applicable to China National Cricket (CNS) 8-gauge cotton (210X297 cm) (Please read the precautions on the back before filling this page)

4229 Ο 1 Α7

Description of the invention (10) β? 10 non-woven fabrics have higher air permeability, higher water pressure resistance, smaller pores and lower differential pressure than the non-woven fabrics of the mother case. ® i 'Γ The method of "spunbond-hyun-jet multi-layer composite non-woven fabric and its product addition (_)" according to the present invention, as described above, can indeed achieve the intended purpose and effect by the method disclosed above, and before application It has not been used in publications or publicly, and has already met the requirements of the invention patent. However, the illustrations and descriptions disclosed above are only examples of the present invention. They are not intended to limit the implementation of the present invention. Anyone who is familiar with the technology, according to the characteristics of Shu Ming, will make other equivalent changes or The amendment should be covered by the scope of patent application in the following case. Please read the note of attention first, and then 4- 15 Printed by the Consumers' Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. 20 Page 13 Look for it ^ ^ ^ ———_____ S. (TNS) Λ4η ^ ί ;. [2l0x

Claims (1)

4229 01 A8 δΒ C8 D8 6. Scope of patent application 1. A method for manufacturing a spunbond-meltblown multilayer composite non-woven fabric is added (1), which includes the following steps: Step 1: Using a first-spunbond spinning device, Sent to—Spunbond spun fibers are drawn from the spinning box, and the spunbond spun fibers are assembled into 5 layers on a layering device to form the first spunbond spun silk screen layer; Step 2: In the above-mentioned On the first spunbond spun silk screen layer, the layer is formed to form more than one bi-component composite meltblown spun silk screen layer, wherein the average diameter of the fibers of the two-component composite melt-blown spun silk screen layer is much smaller than the above spunbond spun yarn. The fiber diameter of the mesh layer; these two-component composite knitting and spun spinning mesh layers are sent to more than one corresponding spinning box to draw two-component composite meltblown spinning fibers, and the discharged two-component The composite melt-blown spun fibers are layered on the first spunbond spun silk screen layer respectively to form more than one bi-component composite melt-blown spun silk screen layer; Step three: more than one bi-component in the second step above Composite 15 meltblown spun silk screen layer Two spunbond spun silk screen layers; where the second spunbond spun silk screen layer is sent to the corresponding spinning box through a second spunbond spinning device to draw spunbond spun fibers, and The discharged spunbond spun fiber aggregate layer is formed on the already layered layer with the first spunbond spun silk mesh layer and one or more bi-component composite meltblown spun silk mesh layers to form a second 20 spunbond spun silk mesh layer. Step 4: Pass the mesh layer formed in the above steps through a heat treatment device to bond into a non-woven fabric. 2. Add (1) the manufacturing method of spunbond-meltblown multilayer composite non-woven fabric as described in item 1 of the scope of patent application, in which the layer structure of the non-woven fabric page 14 {Please read the precautions on the back before filling in this Page) • Packing, ordering, printing, printing, printing, printing, etc. Printed on 229 01 A8 BS C8 D8 Printed by the Shelling Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 6. The scope of application for patents includes the first-spunbond mesh layer / Two-component composite first melt-blown spun screen layer / Two-component composite second melt-blown spun screen layer / second spunbond spun screen layer is preferred. 3. Add the spunbond-meltblown multilayer composite 5 non-woven fabric manufacturing method as described in item 1 or 2 of the scope of patent application (1), in which, in step 1 and step 3, these spunbond spun mesh layers are It is a continuous long fiber, and its component is a single-component material long fiber selected from polypropylene (PP), polyester (PET), nylon (NYLON) or one of the similar. 4. Add (1) the method for manufacturing the spunbond-solvent-blown multilayer composite 10 non-woven fabric as described in item 1 or 2 of the scope of the patent application, wherein in step 1 and step 3, the spunbond spun silk screen layers are It is a continuous long fiber, and its components are composite polypropylene (PP) / polyethylene (PE), polyester (pet) / polyethylene (PE), polyester (PET) / polypropylene (pp), Polypropylene (ppv low-melting polypropylene (C0PP), polyester (PET) / low-melting polyester (co-PET), high-melting 15-point nylon (NYLON) / low-melting nylon (NYLON), etc. For composite spunbond spun long fibers, one of the components in the two-component spunbond spun fibers has a higher melting point and the other component has a lower melting point. 5. If the scope of patent application is item 1 or 2 The manufacturing method of the spunbond-meltblown multilayer composite 20 non-woven fabric is added (1), wherein in step 2, the two-component composite meltblown spun silk screen layers are ultrafine fibers, and the components are Composite polypropylene (PP) / polyethylene (PE), polyester (PET) / polyethylene (PE), polyester (PET) / polypropylene (PP ), Polypropylene (PP) / low melting point polypropylene (C0PP), polyester (PET) ./ low melting point polyester (C0PET), high melting 苐 15 pages (please read the precautions on the back before filling this page) 1 Lfc " λ * ^ r, -TA 'Α8 Β8 CS D8 422901 6. Application scope of patent: Point nylon (NYLON) / low melting point nylon (NYLON), etc. Fibers' These two-component composite solution-jet spinning ------ 1--i— ^ equipment-(Please read the notes on the back before filling in this 莨) One of the components in the fiber has a higher melting point , The other component has a lower melting point. 5 6. Add (1) the method for manufacturing the spunbond-solvent multi-layer composite nonwoven as described in item 5 of the scope of the patent application, where 'the average fiber diameter of the melt-blown spun screen layers is preferably less than 3 μm . 7 · The gas making method of spunbond-meltblown multilayer composite non-woven fabric as described in item 3 of the scope of the patent application. Method addition (1) 'wherein' in step 4, the heat treatment device 10 is a hot pressing wheel By. 8. Add (1) the second method of spunbond-meltblown multilayer composite nonwoven as described in item 4 of the scope of patent application, wherein, in step 4, the heat treatment device is a hot air box, and the hot air box The temperature is set between the melting point temperature of the high melting point fiber component and the melting point temperature of the low melting point fiber 15-dimensional component of the two-component composite spunbond spun silk screen layer. 9. — Seed spunbond—meltblown multilayer composite non-woven fabric manufacturing method added (1), including: Qi Qilang t Yakun Zhunzhan employee consumer cooperative printing step 1: by — the first spunbond spinning device The raw materials are sent to a spinning box to be drawn into spunbond spun fibers, and the spunbond spun fibers are layered on a layering device to form a first spunbond spun silk screen layer; Step 1: In the above On the first spunbond spun silk screen layer, a set of layers is formed. The bicomponent composite melt-spun spun silk screen layer has an average fiber diameter much smaller than that of the above spunbond spun silk screen. The two layers of fibers are straight. The two-component composite meltblown spun silk screen layer sends the raw materials to page 16. 4229 0 Α8 Β8 C8 D8 VI. Patent application scope 'to a corresponding spinning box t is drawn into bi-component composite melt-blown spinning fibers' and the discharged bi-component composite reeded silk fibers are respectively layered in the first section above. On the spunbond spun silk screen layer, two layers of two-component composite melt-blown spun silk screen layer are formed; 5 Step 2: On the two-component two-component composite melt-blown spun silk screen layer in the second step, a layer is formed to form a first layer. Two spunbond spun silk screen layers; wherein, the first spunbond spun silk screen layer is passed through a second spunbond spinning device, and the raw materials are sent to a spinning box to be drawn into spunbond spun fibers, and The discharged spunbond spun fiber aggregate layer forms a second spunbond spun silk mesh layer on top of the already spunbond spun silk mesh layer and the two-layer two-component composite 10 melt-spun spun silk mesh layer; ^ Step 4: The mesh layer formed in the above steps is passed through a heat treatment device to be bonded into a non-woven fabric. 10.0. A product manufactured by adding (1) a method for manufacturing a spunbond-meltblown multilayer composite nonwoven fabric as described in item 1 or 9 of the scope of the patent application. 15 U · Addition of a spunbond-meltblown multilayer composite nonwoven fabric (1) 'The mesh structure of the nonwoven fabric has a spunbond spun silk screen layer / two-component composite meltblown spun silk screen layer / spunbond spinning in order The structure of the screen layer, wherein the average diameter of the fibers of the two-component composite meltblown screen layer is much smaller than the fiber diameter of the two layers of the spunbond screen layer. 20 I2. Addition of spunbond-meltblown multilayer composite non-woven fabric as described in item η of the patent application (1), wherein the mesh layer structure of the non-woven fabric has a spunbond spunscreen layer / two-component composite meltblown in sequence The four-layer structure of the spun silk screen layer / two-component composite melt-blown spun silk screen layer / spunbond spun silk screen layer is preferred, and the average diameter of the fibers of the two-component composite melt-blown spun silk screen layer is much smaller than that of the first. 17 pages (please read the note ^ • item on the back first and then fill out this page) Binding: Order: Printed by the Central Consumers ’Cooperative Bureau of the Ministry of Economic Affairs, printed by the Employees Cooperatives of the Ministry of Economic Affairs 4 229 01 il C3 _ D8 VI. Scope of Patent Application This layer of spunbond silk screen layer has a straight fiber. 13. The spunbond-meltblown multilayer composite non-woven fabric according to item 丨 丨 or 12 of the scope of the patent application is added (1), wherein the spunbond spun silk screen layers are continuous long fibers' and its composition is selected from Single-component material long fiber of polypropylene (PP), polyester (pET), nylon 5 (NYL0N) or one of its analogs. 14. Addition of spunbond-meltblown multilayer composite non-woven fabric as described in item 1 or 12 of the scope of patent application (1), wherein the spunbond spun silk screen layers are continuous long fibers' and their composition is Composite polypropylene (pp) / polyethylene (PE), polyester (PET) / polyethylene (pE), polyester (pET) / polypropylene 10 (PP), polypropylene (PP) / low-melting polypropylene ( C0PP), polyester (PET) / low-melting point polyester (C0PET) 'high-melting nylon (NYLON) / low-melting nylon (NYLON), etc. or two-component composite spunbond spun filaments; Among the two-component composite spunbond spun fibers, one component has a lower melting point than the other component. 15 15 · Addition of spunbond-meltblown multilayer composite non-woven fabric as described in item 11 or 12 of the scope of patent application (1), wherein the two-component composite meltblown spun silk screen layer is made of ultrafine fibers and its composition It is a composite polypropylene (PP) / polyethylene (PE), polyester (pET) / polyethylene (PE), polyester (PET) / polypropylene (PP), polypropylene (PP) / low melting point polymer Two-component composite meltblown spinning of acrylic (copp), polyester 20 (PET) / low-melting polyester (C0PET), high-melting nylon (NYL0N) / low-melting nylon (NYLON), or the like For the fiber, one of the two components of the composite meltblown spinning fiber has a higher melting point and the other component has a lower melting point. 16 · Spunbond-meltblown multilayer composite non-woven as described in item 15 of the scope of patent application Page 18 I-----1 .......--*. ........ ---n ------ n --- n. (Please read the notes on the back and save this page to fill in this page) ABC0 Jingqi ^ -tJt * 隼 Staff Consumption Cooperative Seal ¾ 422901 VI. Application The scope of the patent is added (1). Among them, the average fiber diameter of the two-component composite lyotropic silk screen layer is preferably less than 3 μm. (Please read the precautions on the back before filling out this page) Binding. Page 19 TT ΤΛΠ Γ3ΪΤ 1Λ -Λ / / -ivrr. ^ 4 J iir f -Μ Λ n ^-»^ * 7 A \