WO2022104644A1

WO2022104644A1 - Method for manufacturing composite fiber article

Info

Publication number: WO2022104644A1
Application number: PCT/CN2020/130095
Authority: WO
Inventors: 蔡欣航; 蔡幸桦
Original assignee: 蔡欣航; 蔡幸桦
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2022-05-27

Abstract

A method for manufacturing a composite fiber article, wherein the composite fiber article (1) has composite chemical fibers (11), and raw materials for preparing the composite chemical fibers (11) include: an elastic plastic (12) and a thermoplastic plastic (13). The elastic plastic (12) and the thermoplastic plastic (13) are respectively melted by means of heating and are brought into a die head (2), wherein the die head (2) has a main die channel (21) for extruding the elastic plastic (12) into fibers; the main die channel (21) is provided, on a lateral side, with a branched secondary die channel (22); and the secondary die channel (22) is configured for the thermoplastic plastic (13) to flow toward and bind to a lateral side of the elastic plastic (12) and then undergo extrusion into the composite chemical fibers (11) through the main die channel (21). In addition, after the composite fiber article (1) is stretched, the thermoplastic plastic (13) extends and warps on a lateral side of the elastic plastic (12), such that the composite fiber article (1) becomes fluffy.

Description

Manufacturing method of composite fiber

technical field

The invention relates to a method for manufacturing a fiber, in particular to a method for manufacturing a composite fiber in which an elastic plasticized body and a thermoplastic plasticized body are separately fed into a die and extruded from the die.

Background technique

Chemical fiber is one of the highest quality products since the development of petrochemical raw materials, and it has been widely used in all aspects of life. The products are the most well known, among them, the anti-epidemic masks from infectious diseases are the representatives of chemical fibers.

However, the commercially available anti-epidemic masks themselves, including the hanging ears, have a certain degree of rigidity, and the chemical fibers used to make the anti-epidemic masks, including the hanging ears, have extremely poor elasticity, resulting in insufficient comfort of the anti-epidemic masks, and after long-term wearing, it will hurt the ears to some extent. with the bridge of the nose. In order to improve the wearing comfort of the anti-epidemic mask, the optimization is to ease the rigid contact between the ears and the bridge of the nose, and make the anti-epidemic mask more elastic. Therefore, it is natural to improve the relevant chemical fibers for the production of anti-epidemic masks. place.

SUMMARY OF THE INVENTION

In view of the above, it is known that the used anti-epidemic masks have insufficient wearing comfort. Therefore, the inventor of the present case is urged to research and develop in the direction of improving the comfort of the fibers used in the manufacture of anti-epidemic masks. It is best to consider a method of manufacturing the composite fibers produced by mutual bonding at the time of extrusion.

The composition of the composite fiber of the present invention has at least one composite chemical fiber, and the production material of the composite chemical fiber at least has: an elastic plasticizer and a thermoplastic plasticizer. The elastic plastic body and the thermoplastic plastic body are heated and melted respectively, and the melted elastic plastic body and the thermoplastic plastic body enter a die head, and the die head has at least one main body for extruding the elastic plastic body into fibers. A mold channel, the main mold channel is laterally distributed with two to four bifurcated auxiliary mold channels, and the additional mold channels are used for the thermoplastic plastic body to flow into the side of the elastic plastic body and then pass from the main mold channel. The composite chemical fiber is extruded; the composite fiber material is stretched to make the thermoplastic plasticizer extend and warp on the side of the elastic plasticizer, so as to fluff the composite fiber material.

In some embodiments, the composite chemical fiber of the present invention is laid into a loose continuous body, the continuous body passes through a rolling device, the rolling device rolls the continuous body to form the composite fiber, and the rolling device has a butt joint Rolling the continuous body to become the roller of the composite fiber material, the interior of the roller is combined with a heating component, and the surface of the roller is distributed with a heat protrusion for pressing the composite fiber material, and the heat protrusion can be heated to make the composite fiber material. The composite fibers are bonded to each other to form a reinforcing part.

In some embodiments, the front side of the rolling device has a damping wheel for butt-crunching the continuum, and the rear side of the rolling device has a butt rolling and strongly pulls the continuum that has passed through the damping wheel to become the composite fiber The roller is composed of heating components, and the surface of the roller is distributed with heat protrusions that relatively press the composite fiber material. The heat protrusion can be heated to bond the composite fiber material to each other to form a reinforcing part. .

In some embodiments, the composite chemical fibers of the present invention can be bundled into a composite fiber material, and the composite fiber material passes through a hot spot device, and the hot spot device is distributed with a point pressure that can reciprocate and expand and heat and press the surface of the composite fiber material. The point pressing component is continuously pressed on the surface of the composite fiber material to bond the composite fiber material to each other to form a reinforcing part.

In some embodiments, the composite fiber material passes through a hot spot device during stretching, and the point pressing component continuously presses the surface of the composite fiber material to form a reinforcing portion.

The purpose of the present invention is: the die head has a main mold channel for the elastic plastic body to be extruded into fibers, the side of the main mold channel is bifurcated with an auxiliary mold channel, and the auxiliary mold channel is used for the thermoplastic plastic body to flow into and join in the The sides of the elastic plasticizer are extruded from the main mold channel together to form the composite chemical fiber.

Description of drawings

FIG. 1 is a schematic diagram of the manufacturing method of the composite fiber material of the present invention.

Figure 2 is a schematic diagram of a die head of the present invention.

Fig. 3 is a schematic view of the composite fiber material of the present invention.

FIG. 4 is a schematic diagram of the rolling device of the present invention.

Fig. 5 is a schematic view of a reinforcing portion of the composite fiber material of the present invention.

FIG. 6 is a schematic diagram of a damping wheel in the rolling device of the present invention.

FIG. 7 is a schematic view of the flattening of the composite fiber material of the present invention.

FIG. 8 is a first schematic diagram of the point pressing assembly of the present invention.

FIG. 9 is a first schematic diagram of the bundle of composite fibrous materials of the present invention.

FIG. 10 is a second schematic diagram of the point pressing assembly of the present invention.

Fig. 11 is a second schematic diagram of the bundle of composite fibrous materials of the present invention.

Description of symbols in the attached drawings:

1 composite fiber; 11 composite chemical fiber;

12 elastic plasticizer; 13 thermoplastic plasticizer;

14 Continuum; 15 Reinforcement;

2 die heads; 21 main mold paths;

22 additional mold paths; 3 roller tying devices;

31 rollers; 32 heating components;

33 hot protrusion; 34 damping wheel;

4 hot spot devices; 41 point pressure components.

Detailed ways

In order to make your examiners have a further understanding of the present invention, the following examples are further described.

The present invention is a method for manufacturing a composite fiber, wherein the composite fiber 1 is composed of at least one composite chemical fiber 11, and the production material of the composite chemical fiber 11 at least has: an elastic plasticizer 12 and a thermoplastic Body 13. The elastic plasticizing body 12 and the thermoplastic plasticizing body 13 are heated and melted respectively, and the melted elastic plasticizing body 12 and the thermoplastic plasticizing body 13 enter a die 2, and the die 2 at least has a The body 12 is extruded into a fiber main mold channel 21 , which is laterally distributed with bifurcated auxiliary mold channels 22 for the thermoplastic plastic body 13 to flow into and join the elastic plastic body 12 . The side surfaces are extruded from the main mold channel 21 together to form the composite chemical fiber 11 . After the composite fiber material 1 is stretched, the thermoplastic plasticized body 13 is divided into fibers, stretched and warped on the side of the elastic plasticized body 12 to fluff the composite fiber material 1 (as shown in FIG. 1 ; in addition, the fiber separation Because the chemical fiber 13 is partially separated from the fiber of the elastic fiber 12 after being elongated).

The side of the main mold channel 21 of the die head 2 of the present invention is further bifurcated with at least two to four channels of the auxiliary mold channel 22, so that the side of the elastic plastic body 12 is combined with at least two to four channels of the thermoplastic Plasticizer 13. Then, the elastic plasticizer 12 can choose at least one thermoplastic polyurethane as the raw material; and the thermoplastic plasticizer 13 can choose at least polyethylene, polypropylene and nylon as the raw material (as shown in FIG. 2 ).

The elastic plasticizer 12 can be made of thermoplastic polyurethane (full English name of thermoplastic polyurethane: Thermoplastic polyurethane; abbreviation: TPU). In addition, the thermoplastic plasticizer 13 can be made of polyethylene (full English name of polyethylene: polyethylene; abbreviation: PE) or polypropylene (full English name of polypropylene: Polypropylene; abbreviation: PP); Nylon (Nylon English: Nylon) is the raw material. After the composite fiber material 1 is stretched, the composite fiber material 1 is recovered by the tensile force of the elastic plastic body 12 , and the stretched thermoplastic plastic body 13 and the elastic plastic body 12 are partially separated and warped in the elastic plastic body 12 The side of the plasticizer 12 , and the thermoplastic plasticizer 13 in part is still firmly combined with the elastic plasticizer 12 , and accordingly, the warped thermoplastic plasticizer 13 can just loosen the composite fiber 1 . The thermoplastic plasticizer 13 puffs the composite fiber material 1 to effectively ease the contact between the elastic plasticizer 12 and the skin when the elastic plasticizer 12 is close to the body, effectively preventing the elastic plasticizer 12 from injuring the skin, and the composite fiber product 1 can be used The stretched thermoplastic plasticizer 13 is fluffed to increase the effect of air permeability, heat preservation and water absorption of the composite fiber product 1, so that the composite fiber product 1 can be cut and manufactured and used in combination to: breathable products, heat preservation Products, absorbent products, and products that must be breathable, thermally insulated, and absorbent. Its breathable products include at least: anti-epidemic masks and their elastic hanging ears, shoes, socks, underwear-related products. Its thermal insulation products include at least: vests, coats, fleece sweaters. Its absorbent products include at least: wipes, mops and undershirts. Products that must take into account ventilation, heat preservation and water absorption include at least: sanitary napkins, diapers (as shown in Figure 3; in addition, skin, anti-epidemic masks and their elastic hanging ears, shoes, socks, underwear-related products, vests, jackets , fleece sweaters, rags, mops and undershirts, sanitary napkins and diapers not shown and numbered here).

The composite chemical fiber 11 of the present invention can be laid into a loose continuous body 14, and the continuous body 14 passes through a rolling device 3, and the rolling device 3 rolls the continuous body 14 to form the composite fiber 1. The rolling device 3. There is a roller 31 for butt-rolling the continuous body 14 into the composite fiber material 1, and a heating element 32 is combined inside the roller wheel 31. The surface of the roller wheel 32 is distributed with heat protrusions that relatively press the composite fiber material 1 33. The thermal protrusion 33 forces the composite fiber 1 to form a reinforcing portion 15 at a high temperature (as shown in FIG. 4). The reinforcing portion 15 enhances the toughness and connectivity of the composite fiber material 1, so the composite fiber material 1 can be stretched in any direction, and the stretched thermoplastic body 13 can be stretched and warped in the elastic The side of the plasticizer 12 is used to bulk the composite fiber material 1 (as shown in FIG. 5 ). In addition, when the continuous body 14 passes through the rolling device 3, the front side of the rolling device 3 additionally has a damping wheel 34 for butt-pressing the continuous body 14, and the rear side of the rolling device 3 has a butt rolling and strong pulling mechanism. The continuous body 14 passing through the damping wheel 34 becomes the roller 31 of the composite fiber material 1 (as shown in FIG. 6 ). The reinforcing portion 15 is formed after the composite fiber material 1 is stretched, and the reinforcing portion 15 can just flatten the composite fiber material 1, so that the thermoplastic plastic body 13 of the composite fiber material 1 can be fluffed. Control is nearly flat (as shown in Figure 7).

The composite chemical fibers 11 of the present invention can be bundled into a composite fiber material 1, and the composite fiber material 1 passes through an additional hot spot device 4. The hot spot device 4 is further distributed with reciprocating expansion and contraction high temperature points to press the surface of the composite fiber material 1 The point pressing component 41 is continuously pressed on the surface of the composite fiber material 1 to form the reinforcing part 15 (as shown in FIG. 8 ). The reinforcing portion 15 enhances the toughness and connectivity of the composite fiber material 1 , so after the bundled composite fiber material 1 is stretched, the composite fiber material 1 will not be excessively loose (as shown in FIG. 9 ). ). In another embodiment, the composite fiber material 1 passes through a hot spot device 4 when stretched, and the hot spot device 4 then adjusts the point pressing element 41 to continuously press the surface of the composite fiber material 1 to a predetermined distance. Reinforcing part 15 (as shown in FIG. 10 ). And the reinforcing part 15 produced after the composite fiber material 1 is stretched, when the composite fiber material 1 recovers, the composite chemical fiber 11 between the reinforcing parts 15 presents the bulkiness of the thermoplastic plastic body 13 and the reinforcing part 15 just controls the bulking distance of the thermoplastic plasticized body 13 of the composite fiber 1 to a minimum range (as shown in FIG. 11 ).

It can be seen from the above description that the present invention utilizes the die head 2 to have a main mold channel 21 for extruding the elastic plasticizer 12 into fibers. The side surfaces of the elastic plasticizer 12 are extruded from the main mold path 21 to become the additional mold path 22 of the composite chemical fiber 11 . After the composite fiber product 1 is stretched, the thermoplastic plasticizer 13 can just warp on the surface of the elastic plasticizer 12 to make the composite chemical fiber product 1 fluffy. Puffing the thermoplastic plastic body 13 effectively eases the contact of the elastic plastic body 12 with the skin when it is close to the body, effectively preventing the elastic plastic body 12 from injuring the skin; and the composite fiber product 1 can be expanded to: breathable Products, thermal insulation products, absorbent products, and products that must take into account ventilation, thermal insulation and water absorption.

The technical content and technical features of the present invention have been disclosed as above. However, those skilled in the art may still make various substitutions and modifications based on the disclosure of the present invention without departing from the spirit of the present invention. Therefore, the protection scope of the present invention should not be limited to the contents disclosed in the embodiments, but should include various replacements and modifications that do not deviate from the present invention, and should be covered by the scope of the patent application of the present invention.

Industrial Applicability

The present application discloses a manufacturing method of a composite fiber material. After the composite fiber material is stretched, a thermoplastic plastic body is extended and warped on the side of the elastic plastic body to fluff the composite fiber material, which can increase the air permeability and the air permeability of the composite fiber material. Thermal insulation and water absorption effects, therefore, have industrial practicability.

Claims

A method for manufacturing a composite fiber, wherein the composite fiber is composed of at least one composite chemical fiber, and the production material of the composite chemical fiber at least has: an elastic plasticizer and a thermoplastic plasticizer; the elastic plasticizer The plastic body and the thermoplastic plastic body are heated and melted respectively, and the melted elastic plastic body and the thermoplastic plastic body are put into a die head, and the die head has at least one main mold channel for the elastic plastic body to be extruded into fibers, The main mold channel is laterally distributed with bifurcated auxiliary mold channels. The additional mold channels allow the thermoplastic plastic body to flow into and join the elastic plastic body and then be extruded from the main mold channel to form the composite chemical fiber. ; The composite fiber material is stretched, so that the thermoplastic plasticizer extends and warps on the side of the elastic plasticizer to bulk the composite fiber material.
The method for manufacturing a composite fiber as claimed in claim 1, wherein the side of the main mold path of the die head is further bifurcated with at least two to four additional mold paths, so that the side of the elastic plastic body is further At least two to four passes of the thermoplastic plastomer are incorporated.
The manufacturing method of the composite fiber material according to claim 1 or 2, wherein the composite chemical fiber is laid into a loose continuous body, and the continuous body passes through an additional roller-tying device, and the roller-tying device then rolls the continuous body The body becomes the composite fibrous material, and the rolling device further has a roller for butt-rolling the continuous body to become the composite fibrous material, the inside of the roller is combined with a heating component, and the surface of the roller is distributed with a relative pressing the composite fibrous material. The thermal protrusion of the fiber material can be heated to bond the composite fiber material to each other to form a reinforcing part.
The manufacturing method of the composite fiber material according to claim 1 or 2, wherein the composite chemical fiber is laid into a loose continuous body, and the continuous body passes through an additional rolling device, and the rolling device rolls the The continuum becomes the composite fiber, the front side of the rolling device has a damping wheel for butt-pressing the continuum, and the rear side of the rolling device has the continuous rolling and strong pulling that has passed through the damping wheel. The body becomes the roller of the composite fibrous material, the interior of the roller is combined with a heating component, and the surface of the roller is further distributed with heat protrusions that relatively press the composite fiber material, and the hot protrusions can heat the composite fiber material. The fibers are bonded to each other to form a reinforcement.
The manufacturing method of the composite fibrous material according to claim 1 or 2, wherein the composite chemical fibers are bundled into a composite fibrous material, and the composite fibrous material passes through an additional hot spot device, and the hot spot device is further distributed with reciprocating A point pressing component that expands, contracts and heats the surface of the composite fibrous material, and the point pressing component continuously presses the surface of the composite fibrous material to form a reinforcing part.
The manufacturing method of the composite fiber material according to claim 1 or 2, wherein the composite chemical fiber is bundled into a composite fiber material, and the composite fiber material passes through an additional hot spot device when being stretched, and the hot spot device is another A point pressing component that can reciprocate and expand and press the surface of the composite fiber material by heating is distributed, and the point pressing component is continuously pressed on the surface of the composite fiber material to form a reinforcing part.