CN114134608B - Method for spinning artificial down yarn - Google Patents

Abstract

The invention discloses a method for spinning simulated down yarn, which comprises the following steps: sequentially passing chemical short fibers through the processes of opening, cleaning and carding to obtain a thin fiber net with uniform structure; sending the obtained fiber net into a large press Roller rolling, after rolling flat, use needle punching process to make the fiber thin net into a thin tapestry with hooking strength but without losing the fluffy characteristics; the thin tapestry is cut from the longitudinal direction according to the design requirements of the yarn density. The uniform and continuous strips are sent to the spinning area, and after being merged with the chemical filament yarns in parallel, they are thermally bonded intermittently, rubbed and piled up, and finally made into yarns with simulated down effect. Real down feathers are difficult to fix on the surface of the yarn body due to the small friction coefficient and low single fiber strength, and there are many flying flocs in the spinning process, and the raw material cost and production cost of the product are high. The production cost is low, and it can be widely used in various types of fabrics. Development of fashion fabrics, clothing and home improvement products.

Description

A method of spinning simulated down yarn

technical field

The invention relates to the technical field of spinning, in particular to a method for spinning simulated down yarn.

Background technique

Down fiber is a natural protein fiber. It is one of the important textile filling materials in my country because of its excellent properties such as fluffy, soft, warm, and water repellent. However, its surface is covered with a cell membrane composed of zirol and triphosphate bimolecular layer, the surface is smooth, the fiber friction coefficient is small, and the cohesion force is poor; and because of many factors such as the short overall length of the fiber and poor uniformity, it is difficult to spin The yarn forming or spinning process is more difficult, and the raw material cost and production management cost are greatly increased compared with ordinary yarn. Therefore we urgently need a kind of novel textile filling material to replace existing down fiber material.

Contents of the invention

The purpose of the present invention is to provide a method for spinning simulated down yarns to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solution: a spinning method of simulated down yarn, comprising the following steps: Step 1: The chemical short fibers are sequentially subjected to the opening, cleaning and carding processes to obtain fiber thin fibers with uniform structure. net; step 2: sending the obtained fiber thin net into a large press roller for rolling, and adopting a needle-punching process after the rolling is smooth, and making the fiber thin net into a thin felt with hooking strength but without losing fluffy characteristics; Step 3: According to the design requirements of the yarn density, cut the thin felt into uniform and continuous strips from the longitudinal direction and send them to the spinning area; Step 4: Combine each strip of thin felt with a chemical filament yarn After they are merged vertically, they are thermally bonded intermittently, friction-raised, and finally made into a yarn with a simulated down effect.

As a further solution of the present invention: in step 2, the needle punching process sets the needle punching density to 50-60 punches/cm ² when performing needle punching.

As a further solution of the present invention: in step 1, when the chemical staple fiber is in the opening and cleaning process, its output weight is 350-400g/m, and when the chemical staple fiber is in the carding process, its output weight is It is 18-30g/5m. After the raw material forms a thin fiber net, the coagulation and conveying process of the carding machine is no longer carried out. At this time, it is transferred to the acupuncture machine to provide raw materials for the acupuncture process.

As a further solution of the present invention: in step 3, the width of the strips of thin tapestry is 1-1.2 cm.

As a further solution of the present invention: in step 4, the thermal bonding specifically refers to rolling over the thin felt of the fiber with a heated special-shaped gear, and when the heating temperature of the gear reaches the glass transition temperature of the fiber, the tooth surface is in contact with the fiber The fibers under the area are compressed and coagulated to form an inseparable fiber bundle, while the fibers not in contact with the tooth surface remain fluffy.

As a further solution of the present invention: the friction raising is specifically to pass the sliver that has not been processed by thermal bonding through a friction plate equipped with a number of thick needles, and through the plane movement of the friction plate, the bulkiness of the passed sliver is enhanced, Thereby realizing the simulation effect of forming down.

As a further solution of the present invention: the fiber is a polymer chemical fiber with a fixed glass transition temperature or a luminous, aromatic or antibacterial fiber.

As a further solution of the present invention: in step 4, the filament and the short chemical fiber are fibers of the same type, have the same glass transition temperature, and the filament is a multifilament.

Compared with the prior art, the beneficial effect of the present invention is: it overcomes the difficulty of fixing the real down feathers on the surface of the yarn body due to the small friction coefficient and low single fiber strength, and there are many flying flocculations in the spinning process, and the raw material cost and production cost of the product are greatly reduced. High disadvantages, and low production costs, can be widely used in the development of various fashion fabrics, clothing and home improvement products.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that are required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the schematic diagram of acupuncture process of the present invention;

Fig. 2 is a schematic diagram of the thermal bonding and rubbing process of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1-2, in the embodiment of the present invention, a spinning method of simulated down yarn includes the following steps: Step 1: The chemical short fibers are sequentially passed through the opening, cleaning and carding processes to obtain fibers with uniform structure Thin net; Step 2: Send the obtained fiber thin net to a large pressure roller for rolling, and use needle punching technology after rolling flat to make the fiber thin net into a thin tapestry with hooking strength but without losing fluffy characteristics ; Step 3: Cut the thin felt into uniform and continuous strips from the longitudinal direction according to the design requirements of the yarn density and send them to the spinning area; Step 4: Combine each strip of thin felt with a chemical filament After the yarns are merged side by side in the longitudinal direction, they are thermally bonded intermittently, friction raised and finally made into yarns with simulated down effect.

Embodiment one:

The chemical staple fiber first passes through the cleaning and carding process to obtain a thin fiber net with a uniform structure. The chemical staple fiber is a polymer chemical fiber with a fixed glass transition temperature. , its output quantity is 350g/m, and when described chemical short fiber is carrying out carding process, its output quantity is 18g/5m, after the thin fiber net is made, its raw material machine switches raw material to acupuncture machine and carries out raw material supply , carry out the acupuncture process, the acupuncture process is specifically completed by an acupuncture machine, the acupuncture machine is mainly composed of a pressure roller, a needle plate, a cutting knife and an output roller, and the acupuncture density of the acupuncture machine is set as 50 thorns/cm ² , the fiber thin net is rolled by rollers and needled to obtain a thin tapered felt with interlocking strength without losing the fluffy characteristic, and the width of the thin tapered felt is 1 cm;

According to the design of the yarn density, the thin felt is cut longitudinally into uniform and continuous strips and sent to the spinning area for spinning. During spinning, each strip of thin felt is combined with a chemical length The filaments, that is, the raw materials are merged vertically side by side, and then the heated special-shaped gear is used to roll through the thin fiber felt. When the heating temperature of the gear reaches the temperature of fiber vitrification, the contact area between the tooth surface and the fiber will produce fiber compression and Coagulate and become an inseparable fiber bundle, while the fibers that are not in contact with the tooth surface can still remain fluffy and protrude from the coagulated surface;

The thin tapesteel continues to move forward after being thermally bonded. At this time, the friction plate will rub against the area of the thin tapeste that protrudes from the condensation surface. The bulkiness of the sliver can be enhanced by the thick needles on the friction plate, so as to achieve Better simulation effect.

Embodiment two:

The chemical staple fiber first passes through the cleaning and carding process to obtain a thin fiber net with a uniform structure. The chemical staple fiber is a polymer chemical fiber with a fixed glass transition temperature. , its output quantity is 400g/m, and when described chemical short fiber is carrying out carding process, its output quantity is 30g/5m, after the fiber thin net is made, its raw material machine switches raw material to acupuncture machine for raw material supply , carry out the acupuncture process, the acupuncture process is specifically completed by an acupuncture machine, the acupuncture machine is mainly composed of a pressure roller, a needle plate, a cutting knife and an output roller, and the acupuncture density of the acupuncture machine is set as 60 thorns/cm ² , the fiber thin net is rolled by rollers and needled to obtain a thin tapered felt with interlocking strength without losing the fluffy characteristic, and the width of the thin tapered felt is 1.2 cm;

According to the design of the yarn density, the thin felt is cut longitudinally into uniform and continuous strips and sent to the spinning area for spinning. During spinning, each strip of thin felt is combined with a chemical length The filaments, that is, the raw materials are merged vertically side by side, and then the heated special-shaped gear is used to roll through the thin fiber felt. When the heating temperature of the gear reaches the temperature of fiber vitrification, the contact area between the tooth surface and the fiber will produce fiber compression and Coagulate and become an inseparable fiber bundle, while the fibers that are not in contact with the tooth surface can still remain fluffy and protrude from the coagulated surface;

The thin tapesteel continues to move forward after being thermally bonded. At this time, the friction plate will rub against the area of the thin tapeste that protrudes from the condensation surface. The bulkiness of the sliver can be enhanced by the thick needles on the friction plate, so as to achieve better simulation

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (8)

1. a spinning method of simulation down yarn, is characterized in that, comprises the following steps: Step 1: The chemical staple fibers are sequentially subjected to the opening, cleaning and carding processes to obtain a thin fiber web with a uniform structure; Step 2: Send the obtained thin fiber net to a large pressure roller for rolling, and use needle punching technology after rolling to make it smooth, and make the thin fiber net into a thin felt with hooking strength but without losing fluffy characteristics; Step 3: According to the design requirements of the yarn density, the thin tapesteel is cut into uniform and continuous strips from the longitudinal direction and sent to the spinning area; Step 4: After longitudinally merging each strip of thin tapestry with a chemical filament yarn, it undergoes discontinuous thermal bonding, friction fleece, and finally produces a yarn with a simulated down effect. 2. The spinning method of a kind of simulated down yarn according to claim 1, characterized in that: in step 2, the needle punching process sets the needle punching density to 50-60 punches when performing needle punching. /cm ² . 3. the spinning method of a kind of simulated down yarn according to claim 1, is characterized in that: in step 1, when described chemical short fiber is carrying out opening and cleaning process, its output quantification is 350-400g/ m, when the chemical staple fiber is in the carding process, its output weight is 18-30g/5m. The machine provides raw materials for the acupuncture process. 4 . The spinning method of simulated down yarn according to claim 1 , characterized in that: in step 3, the width of the elongated thin felt is 1-1.2 cm. 5. The spinning method of a kind of simulated down yarn according to claim 1, characterized in that: in step 4, the thermal bonding specifically refers to rolling over the thin fiber felt with a heated special-shaped gear, when When the gear heating temperature reaches the fiber glass transition temperature, the fibers under the contact area between the tooth surface and the fiber will be compressed and coagulated to become an inseparable fiber bundle, while the fibers not in contact with the tooth surface remain fluffy. 6. The spinning method of a kind of simulated down yarn according to claim 1, characterized in that: the friction raising is specifically to pass the sliver that has not been processed by thermal bonding through friction with some thick needles installed. The plate, through the planar movement of the friction plate, enhances the bulkiness of the passing yarn, so as to realize the simulation effect of forming down. 7. The spinning method of a simulated down yarn according to claim 1, characterized in that: the fiber is a polymer chemical fiber with a fixed glass transition temperature or a luminous, aromatic, or antibacterial fiber. 8. the spinning method of a kind of emulation down yarn according to claim 1, is characterized in that: in step 4, described long filament and chemical short fiber are the fiber of same kind, and its glass transition temperature is consistent, and The filaments are multifilaments.

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