Apparatus and method for making tubular down yarn

Abstract

The application discloses a device and a method for preparing tubular down yarn. The device comprises a down feeding device, an electrostatic treatment device, a tubular forming device and a twisting and winding device. The method is as follows: down is fed into a down feeding and quantitative output hopper, and the down is quantitatively output to the electrostatic treatment device; the voltage of the electrostatic treatment device is set, and the down is electrostatically treated so that the down is arranged in a linear shape; the electrostatic elimination device is started to remove the static electricity on the down, and the down arranged in a linear shape is obtained; the down arranged in a linear shape is used as a core-spun yarn raw material, and tubular down yarn is obtained through the coating of the tubular forming device; and the tubular down yarn is twisted and wound by the twisting and winding device. The tubular down yarn prepared by the application can be directly used for weaving down fabric, and the problems of drilling and hardening of down filling in the prior art are solved; and the tubular down yarn can also be used as a production raw material of down textile products such as a down pillow, a down cushion, a down jacket, a down quilt and the like.

Description

Technical Field

[0001] This invention relates to an apparatus and method for preparing tubular down yarn, belonging to the field of textile materials and technology. Background Technology

[0002] Down, as a natural insulating material, has a long history. Its lightweight, fluffy texture and excellent warmth give it unique properties that are difficult for other clothing materials to replace. Therefore, common winter clothing products typically use down as the primary filling material, with down jackets being a prime example. Down jackets are popular with consumers for their lightweight warmth, and thanks to evolving fashion trends and the development of new fabrics, they have transformed from their past bulky and voluminous image into lightweight, warm, and stylish garments.

[0003] With the improvement of living standards, people have higher requirements for the functionality of down jackets, in addition to their good appearance and warmth. Beyond the basic functions of down jackets, they also demand features such as down-proofness and breathability. However, due to issues such as poor down-proof performance of the fabric, poor down quality, improper use and maintenance, down leakage through needle holes, fabric leakage, excessive filling material, and static electricity, down jackets often experience down leakage, down fraying, and other problems. Furthermore, some down jackets tend to clump together after washing, making it difficult to fluff the down and affecting subsequent wear. Aside from quilting techniques, these problems are mostly due to the inherent structure of the down and the immature down filling process. Therefore, to solve the common problems of clumping and down leakage in down jackets, it is worth considering developing a tubular down yarn to directly produce down fabrics or products, replacing traditional down filling processes. From the current research status both domestically and internationally, the preparation technology of down yarn is not yet fully mature. Cao Youchang et al. proposed developing a series of brushed down yarns by spinning short-fiber rovings and chemical fiber filaments on a ring spinning machine using a reasonable process route and parameters. However, this invention only produced a type of down yarn with a brushed effect and did not solve the common problem of down leakage in down products. Therefore, this invention proposes a method for preparing tubular down yarn: Bulk down is fed into the inlet of a down feeding device via a hopper. After exiting the device, the down undergoes electrostatic treatment to set its shape, resulting in down arranged in a linear pattern. The arranged down is used as core-spun yarn raw material and woven on a braiding machine to produce tubular down yarn. A twisting and winding device then applies tension to the yarn. The electrostatically treated down sheds some surface stray feathers, retaining the inherent warmth of the down. Simultaneously, directly weaving down products from this down yarn can solve the common problems of down leakage and clumping in down products from the source. Summary of the Invention

[0004] The technical problem solved by the present application is to provide a down yarn which has a wrapping effect on down, so as to avoid the problems such as down drilling and hardening in down products woven by the down yarn.

[0005] In order to solve the above problems, the present application provides a device for preparing a tubular down yarn, which sequentially comprises a down feeding device, an electrostatic treatment device, a tubular forming device and a twisting and winding device; the down feeding device comprises a quantitative output hopper for quantitatively outputting down; the electrostatic treatment device is used for electrostatic treatment of the down, and the down is arranged in a linear shape after being electrified; the electrostatic treatment device is also provided with an electrostatic elimination device for electrostatic elimination treatment of the down which has been subjected to electrostatic treatment; the tubular forming device is used for taking the linearly arranged down as a core-spun yarn raw material, and wrapping a layer of sheet material on the outside of the down, so as to prepare a tubular down yarn, wherein the raw material of the sheet material is stored by a wrapping material storage device; and the twisting and winding device is used for twisting and winding treatment of the tubular down yarn.

[0006] Preferably, the output range of the quantitative output hopper is 0.1-500 g / min.

[0007] Preferably, the electrostatic treatment device comprises a pair of electrostatic electrode plates connected with a power supply; and the electrostatic elimination device comprises a fan in communication with a negative ion steam generator, and the fan blows the high-humidity air generated by the negative ion steam generator to the down, so as to remove the static electricity on the down.

[0008] More preferably, the adjustable range of the electrostatic voltage of the electrostatic electrode plates is 1-100 kV.

[0009] More preferably, the pair of electrostatic electrode plates are a pair of parallel arranged flat conductive electrode plates or a pair of oppositely arranged circular arc conductive electrode plates.

[0010] More preferably, the pair of electrostatic electrode plates are conductive copper plates, stainless steel plates or alloy plates.

[0011] Preferably, the tubular forming device adopts a braiding machine, a circular knitting machine, a parallel spinning machine, a hollow tube forming machine or a tubular winding machine; and the sheet material is a knitted fabric, a woven fabric, a braided fabric, a non-woven fabric or a film.

[0012] The present application also provides a method for preparing a tubular down yarn, which adopts the device for preparing a tubular down yarn and is performed according to the following steps:

[0013] Step 1): the down is fed into a down feeding quantitative output hopper, and the down is quantitatively output to an electrostatic treatment device;

[0014] Step 2): set the voltage of the electrostatic treatment device, electrostatically treat the down, so that the down is linearly arranged; start the electrostatic elimination device to remove the static electricity on the down, and obtain the down in linear arrangement;

[0015] Step 3): the down in linear arrangement is used as a core yarn raw material, and a tubular down yarn is obtained through the coating of the tubular forming device, and the twisting and winding device twists and winds the tubular down yarn.

[0016] The tubular down yarn prepared by the application can be directly used to weave down fabric, and can be applied to the production of down products such as down pillows, down cushions, down clothes, down quilts, down sleeping bags and warm filling materials.

[0017] The principle of the application is that the down is output in a certain amount through the down feeding device and the electrostatic treatment device, and then the down is arranged in a linear form by electrostatic connection of one flower to another, and then the electrostatic is eliminated to obtain a continuous linearly arranged down body; and then a sheet material is coated outside the linearly arranged down body to coat the down into a tubular down yarn with a stable structure. The key problem solved by the application is that the down products can be woven into down fabric and products by the tubular down yarn prepared by the application, instead of only being made of down filling.

[0018] Compared with the prior art, the application has the following beneficial effects:

[0019] (1) The application innovatively designs a preparation device for tubular down yarn, which can coat a sheet material outside the linearly arranged down based on the coating mode of the existing tubular forming device, such as a knitting machine, a circular knitting machine, a parallel spinning machine, a hollow tube forming machine or a tubular winding machine, and the sheet material can be a knitted fabric, a woven fabric, a braided fabric or a non-woven fabric. The tubular down yarn is prepared.

[0020] (2) The tubular down yarn prepared by the application can be directly woven into down products by a loom, and the process is simple, and the problem of down drilling and hardening of the down products is solved.

[0021] (3) The tubular down yarn prepared by the application can be used to weave different types of down products, and has a wide range of applications and a broad application prospect.

[0022] (4) The device of the application is simple to operate, and the down products prepared by the application are simple to process and have excellent repeatability. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The application provides a schematic diagram of the device for preparing the tubular down yarn.

[0024] Figure 2A schematic view of the tubular down yarn prepared by the present application;

[0025] Figure 3 A cross-sectional view of the tubular down yarn prepared by the present application;

[0026] Figure 4 A schematic view of the fabric prepared by the tubular down yarn prepared by the present application;

[0027] Figure 5 A schematic view of the parallel arranged flat conductive electrode plates;

[0028] Figure 6 A schematic view of the oppositely arranged arc-shaped conductive electrode plates. DETAILED DESCRIPTION

[0029] In order to make the present application more apparent and easy to understand, the preferred embodiments are described in detail below with reference to the accompanying drawings.

[0030] As shown in Figure 1 , the present application provides a device for preparing tubular down yarn, which comprises, in sequence, a down feeding device, an electrostatic treatment device, a tubular forming device and a twisting and winding device 7; the down feeding device comprises a constant weight hopper 1 for constant weight output of down; the electrostatic treatment device is used for electrostatic treatment of the down, and the down is arranged in a linear shape after being charged with static electricity, and the electrostatic treatment device is further provided with an electrostatic elimination device for electrostatic elimination treatment of the down which has been subjected to electrostatic treatment; the tubular forming device is used for taking the linearly arranged down as a core-spun yarn raw material, and covering a layer of sheet material on the outside of the down, so as to prepare a tubular down yarn, wherein the raw material of the sheet material is stored by a covering material storage device 5; the twisting and winding device 7 is used for twisting and winding treatment of the tubular down yarn.

[0031] The output range of the constant weight hopper 1 is 0.1-500 g / min.

[0032] The electrostatic treatment device comprises a pair of electrostatic electrode plates 2 connected with a power supply; the electrostatic elimination device comprises a fan 4 in communication with a negative ion steam generator 3, and the fan 4 blows the high-humidity air generated by the negative ion steam generator 3 to the down, so as to remove the static electricity on the down. The adjustable range of the electrostatic voltage of the electrostatic electrode plates 2 is 1-100 kV. The pair of electrostatic electrode plates 2 are a pair of parallel arranged flat conductive electrode plates (as shown in Figure 5 ) or a pair of oppositely arranged arc-shaped conductive electrode plates (as shown in Figure 6 ). The pair of electrostatic electrode plates 2 are conductive copper plates, stainless steel plates or alloy plates.

[0033] The tubular forming device adopts a braiding machine 6 (as shown in Figure 1The sheet-like material is a knitted fabric, a woven fabric, a braided fabric, a nonwoven fabric, or a film.

[0034] A method for manufacturing a tubular down yarn, which is performed in the following steps:

[0035] Step 1): The down is fed into a down feeding and rationing hopper 1, and the down is rationed to an electrostatic treatment device;

[0036] Step 2): The voltage of an electrostatic electrode plate 2 is set, and the down is electrostatically treated so as to be linearly arranged; a negative ion steam generator 3 and a fan 4 are started, and the static electricity on the down is removed; the fan 4 blows the high-humidity air generated by the negative ion steam generator 3 to the down, and the down in linear arrangement is obtained.

[0037] Step 3): The down in linear arrangement is used as a core-spun yarn raw material, and a tubular down yarn is obtained through the coating of a tubular forming device; a twisting and winding device 7 twists and winds the tubular down yarn. The obtained tubular down yarn is shown in Figure 2 、 3 , in which the outer layer is a net fabric B, and the inner part is down A. The tubular down yarn can be knitted into a fabric, as shown in Figure 4 .

[0038] The corresponding parameters of the constituent parts involved in the five examples are set, including (1) various production process conditions of the down feeding device (feeding speed, feeding amount); (2) process parameters of the electrostatic treatment device (static voltage, electrode plate distance, electrode plate material, electrode plate shape); (3) process parameters of the tubular forming device (coating method, sheet-like material); (4) process parameters of the twisting and winding device (including twist, winding speed). The setting parameters of the examples are shown in Table 1.

[0039] Table 1

[0040]

Claims

1. An apparatus for making a tubular down yarn, characterized in that, It sequentially comprises: The down feeding device, the electrostatic treatment device, the tubular forming device and the twisting and winding device (7); the down feeding device comprises a quantitative output hopper (1) for outputting down in a certain amount; the electrostatic treatment device is used for electrostatic treatment of the down, and the down is arranged in a linear shape after being electrified; the electrostatic treatment device is also provided with an electrostatic elimination device for electrostatic elimination treatment of the down which has been electrostatically treated; the tubular forming device is used for covering a layer of sheet material on the outside of the down arranged in a linear shape as a core-spun yarn raw material, so as to obtain a tubular down yarn, wherein the raw material of the sheet material is stored by a covering material storage device (5); the twisting and winding device (7) is used for twisting and winding treatment of the tubular down yarn.

2. A device for producing tubular down yarn according to claim 1, characterized in that The output range of the quantitative output hopper (1) is 0.1-500 g / min.

3. The device for making tubular down yarn according to claim 1, wherein, The electrostatic treatment device comprises a pair of electrostatic electrode plates (2) connected with a power supply; the electrostatic elimination device comprises a fan (4) in communication with a negative ion vapor generator (3), and the fan (4) blows the high-humidity air generated by the negative ion vapor generator (3) to the down to remove the static electricity on the down.

4. A device for producing tubular down yarn according to claim 3, characterized in that The adjustable range of the electrostatic voltage of the electrostatic electrode plate (2) is 1-100 kV.

5. A device for making tubular down yarn as claimed in claim 3, characterized in that The pair of electrostatic electrode plates (2) are a pair of parallel arranged flat conductive electrode plates or a pair of oppositely arranged circular arc conductive electrode plates.

6. The device for making tubular down yarn according to claim 3, wherein The pair of electrostatic electrode plates (2) are conductive copper plates, stainless steel plates or alloy plates.

7. The device for making tubular down yarn according to claim 1, wherein The tubular forming device adopts a braiding machine (6), a circular knitting machine, a parallel spinning machine, a hollow tube forming machine or a tubular winding machine; and the sheet material is a knitted fabric, a woven fabric, a braided fabric, a non-woven fabric or a film.

8. A method of making a tubular down yarn, characterized by, The device for preparing a tubular down yarn according to any one of claims 1-7 is used to perform the following steps: Step 1): the down is fed into the down feeding quantitative output hopper (1), and the down is quantitatively output to the electrostatic treatment device; Step 2): the voltage of the electrostatic treatment device is set, and the down is electrostatically treated so that the down is arranged in a linear shape; the electrostatic elimination device is started to remove the static electricity on the down, and the down arranged in a linear shape is obtained; Step 3): the down arranged in a linear shape is used as a core-spun yarn raw material, and the tubular down yarn is obtained after being covered by the tubular forming device; the twisting and winding device (7) is used for twisting and winding treatment of the tubular down yarn.

Images