Yarn cone, yarn head and dyeing method

Abstract

The present invention discloses a yarn drum, a drum head and a dyeing method. The yarn drum includes a drum body, which includes an annular filter screen with radial through holes and an annular outer support structure with radial through holes sleeved on the outside of the filter screen. The aperture of the radial through holes of the outer support structure is larger than the aperture of the radial through holes of the filter screen. The two ends of the drum body in the axial direction are respectively fixed to two end plates. The end plates are provided with middle through holes in the axial direction. The middle through holes are located on the inner side of the filter screen in the radial direction. By adding a filter screen to the yarn drum, the yarn drum itself has a filtering function. When the dye flows through the filter screen, the oligomers are filtered to prevent the oligomers from sticking to the cloth belt, especially the part in direct contact with the outer support structure. Since the filter screen is directly fixed on the yarn drum, there is no need to wrap the non-woven fabric for filtering on the cloth belt every time dyeing is performed, so that the dyeing efficiency can be improved. In addition, the filter screen and the cloth belt are separated by the outer support structure, so that the dyeing effect can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of dyeing technology, and in particular to a yarn cone, a yarn head and a dyeing method. Background Art

[0002] Polyester is the main material of webbing, zipper and zipper tape. In the process of dyeing zipper tape or yards, the yards or tapes to be dyed are first wound on the yarn drum and then dyed at high temperature and high pressure, fixed and cleaned to obtain finished products or semi-finished products.

[0003] However, since polyester contains oligomers, they may be released after high temperature, high pressure and alkaline color fixation cleaning and filtered through the cloth tape or packaging, and adsorbed on the inner cloth tape or the tray to form grayish white fine particles, which seriously affect the color difference between the inside and outside of the zipper or cloth tape and the color fastness of the inner cloth tape, especially the black cloth tape.

[0004] In order to improve the above problems, in the prior art, several layers of non-woven fabrics are often coated on the outside of the yarn tube as a filter layer. This can play a certain role, but coating and cleaning the non-woven fabrics increase the production process and increase the cost.

[0005] Therefore, how to improve the dyeing efficiency is a technical problem that those skilled in the art currently need to solve. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a yarn tube that can improve dyeing efficiency. Another object of the present invention is to provide a head including the yarn tube that can improve dyeing efficiency. Another object of the present invention is to provide a dyeing method using the yarn tube that has high dyeing efficiency.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A yarn drum comprises a drum body, the drum body comprises an annular filter screen with radial through holes and an annular outer support structure with radial through holes which is sleeved on the outside of the filter screen, the aperture of the radial through holes of the outer support structure is larger than the aperture of the radial through holes of the filter screen, the two axial ends of the drum body are respectively fixed to two end plates, the end plates are axially penetrated by a middle through hole, and the middle through hole is radially located on the inner side of the filter screen.

[0009] Preferably, the cylinder further includes an inner supporting structure, and the filter screen is arranged between the outer supporting structure and the inner supporting structure.

[0010] Preferably, the inner support structure is an annular structure having a radial through hole, and the axial direction of the inner support structure is the same as the axial direction of the filter screen; the middle through hole is located radially inside the inner support structure.

[0011] Preferably, the diameter of the radial through holes of the inner support structure is larger than the diameter of the radial through holes of the filter screen.

[0012] Preferably, the inner support structure comprises a support rod with two ends respectively fixed to the two end plates.

[0013] Preferably, a filter connection groove is provided at the axial end of the filter to be buckled and fixed to the axial end of the outer support structure.

[0014] Preferably, annular mounting grooves are respectively provided on the opposite axial end surfaces of the two end plates to correspond and fix the cylinder.

[0015] Preferably, the outer supporting structure is an annular mesh plate with radial through holes evenly distributed thereon.

[0016] A disc head comprises a disc head body and a disc head cover, wherein an inner cavity is opened at one axial end of the disc head body, the disc head cover is detachably fixed to the opening of the inner cavity, and a yarn tube as above is detachably arranged in the inner cavity.

[0017] A dyeing method comprising:

[0018] Winding the fabric around the outer side of the tube in the yarn tube;

[0019] The yarn tube is placed in a dyeing vat in a high temperature and high pressure environment for dyeing.

[0020] The yarn drum provided by the present invention comprises a drum body, which comprises an annular filter screen with radial through holes and an annular outer support structure with radial through holes which is sleeved on the outside of the filter screen, the aperture of the radial through holes of the outer support structure is larger than the aperture of the radial through holes of the filter screen, the two axial ends of the drum body are respectively fixed to two end plates, the end plates are axially penetrated by a middle through hole, and the middle through hole is radially located on the inner side of the filter screen.

[0021] When in use, the cloth to be dyed is wound around the outer side of the outer support structure. During dyeing, the dye solution can enter the inner side of the filter screen through the middle through hole, filter the oligomers through the filter screen, and then pass through the radial through holes on the outer support structure to contact the cloth to be dyed.

[0022] By adding a filter screen to the yarn drum, the yarn drum itself has a filtering function. When the dye flows through the filter screen, the oligomers are filtered to prevent the oligomers from sticking to the cloth tape, especially the part directly in contact with the external support structure. Since the filter screen is directly fixed on the yarn drum, it is not necessary to wrap the non-woven fabric used for filtering on the cloth tape every time dyeing is performed, which can improve the dyeing efficiency. In addition, the dye has a low filtration rate at the filter screen with a smaller radial through hole diameter. The direct contact of the filter screen with the cloth tape will affect the dyeing effect. The filter screen and the cloth tape are separated by the external support structure. Since the external support structure has a certain thickness in the radial direction and the radial through hole diameter is larger than the filter screen, the radial through hole on the external support structure can be used as a collection channel to collect the dye solution passing through the filter screen, and then the cloth tape is dyed, which can ensure the dyeing effect and improve the color difference between the inside and outside of the cloth tape after dyeing and the problem of poor color fastness of the innermost layer.

[0023] The yarn head provided by the present invention, including the yarn tube, can improve the dyeing efficiency.

[0024] The dyeing method using the yarn tube provided by the present invention has high dyeing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0026] Figure 1 A cross-sectional view of a specific embodiment 1 of a yarn bobbin provided by the present invention;

[0027] Figure 2 This is a structural diagram of the inner support structure and the outer support structure in the specific embodiment 1 of the yarn bobbin provided by the present invention, with the radial through hole hidden;

[0028] Figure 3 This is a structural diagram of the inner filter screen in the specific embodiment 1 of the yarn tube provided by the present invention, with the radial through holes hidden;

[0029] Figure 4 for Figure 3 Enlarged view of point C;

[0030] Figure 5 A structural diagram of an end plate in a specific embodiment 1 of a yarn bobbin provided by the present invention;

[0031] Figure 6 A side view of a specific embodiment 1 of the pan head provided by the present invention;

[0032] Figure 7 for Figure 6 AA section view;

[0033] Figure 8 for Figure 7 Enlarged view of point B.

[0034] Reference numerals:

[0035] Cylinder 1, filter screen 11, filter screen connecting groove 111, outer supporting structure 12, inner supporting structure 13;

[0036] End plate 2, middle through hole 21, annular mounting groove 22;

[0037] Tie rod 3;

[0038] Pan head body 4;

[0039] Pan head cover 5. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] The core of the present invention is to provide a yarn tube, which can improve the dyeing efficiency. Another core of the present invention is to provide a head including the yarn tube, which can improve the dyeing efficiency. Another core of the present invention is to provide a dyeing method using the yarn tube, which has a high dyeing efficiency.

[0042] For a specific embodiment of the yarn bobbin provided by the present invention, please refer to Figures 1 to 8 , comprising a cylinder 1. The cylinder 1 comprises an annular filter screen 11 having radial through holes and an annular outer support structure 12 having radial through holes. The axial direction of the filter screen 11 is consistent with the axial direction of the outer support structure 12. The outer support structure 12 is sleeved on the outer side of the filter screen 11. The aperture of the radial through hole of the outer support structure 12 is larger than the aperture of the radial through hole of the filter screen 11.

[0043] The two axial ends of the cylinder 1 are respectively fixed to two end plates 2 . The end plates 2 are provided with a middle through hole 21 in the axial direction. The middle through hole 21 is located inside the filter screen 11 in the radial direction.

[0044] Among them, each component in the cylinder 1 can be made of hard materials such as stainless steel to avoid adsorption of dyes, facilitate cleaning, and have a wide range of applications.

[0045] Among them, the filter screen 11 is the key part of the yarn drum filtration, and the aperture size of its radial through holes directly affects the final filtering effect. Preferably, the material of the filter screen 11 is one of stainless steel wire, nickel wire, brass wire or PP fiber, preferably stainless steel wire. The mesh of the filter screen 11 is its radial through hole, and the mesh size range is 200-900 mesh, preferably 700 mesh. In order to facilitate the replacement and reuse of the filter screen 11, it is preferred that the filter screen 11 is detachably connected to the end plate 2, of course, it can also be set to be non-detachable.

[0046] When in use, the cloth to be dyed is wound around the outer side of the outer support structure 12. During dyeing, the dye solution can enter the inner side of the filter screen 11 through the middle through hole 21, filter the oligomers through the filter screen 11, and then pass through the radial through holes on the outer support structure 12 to contact the cloth to be dyed.

[0047] By adding a filter screen 11 to the yarn drum, the yarn drum itself has a filtering function. When the dye flows through the filter screen 11, the oligomer is filtered to prevent the oligomer from sticking to the cloth tape, especially the part directly in contact with the outer support structure 12. Since the filter screen 11 is directly fixed on the yarn drum, it is not necessary to wrap the non-woven fabric used for filtering on the cloth tape every time dyeing, which can improve the dyeing efficiency. In addition, the dye has a low filtration rate at the filter screen 11 with a smaller radial through hole diameter, and the direct contact of the filter screen 11 with the cloth tape will affect the dyeing effect. The filter screen 11 and the cloth tape are separated by the outer support structure 12. Since the outer support structure 12 has a certain thickness in the radial direction and the radial through hole diameter is larger than the filter screen 11, the radial through hole on the outer support structure 12 can be used as a collection channel to collect the dye solution passing through the filter screen 11, and then dye the cloth tape, which can ensure the dyeing effect and improve the color difference between the inside and outside of the cloth tape after dyeing and the problem of poor color fastness of the innermost layer.

[0048] Furthermore, the cylinder 1 also includes an inner support structure 13 for protecting the filter 11. The filter 11 is arranged between the outer support structure 12 and the inner support structure 13. Since the yarn drum may also be in a reverse pump environment, the filter 11 is subjected to the radially inward fluid impact force and may be broken, especially for the filter 11 composed of multiple parts. At this time, through the arrangement of the inner support structure 13, the filter 11 can be limited from the inside of the filter 11 to prevent the filter 11 from being excessively deformed radially inward and damaged.

[0049] The filter screen 11 can be arranged at any position between the inner support structure 13 and the outer support structure 12, and can be spaced apart from the inner support structure 13 and the outer support structure 12, or can be fitted to the inner support structure 13 and the outer support structure 12, for example. Figure 8 As shown, in this embodiment, the filter screen 11 and the outer support structure 12 are arranged in close contact, and there is a radial gap between the filter screen 11 and the inner support structure 13 .

[0050] Furthermore, if Figure 7 and Figure 8As shown, the inner support structure 13 is an annular structure with radial through holes, and the axial direction of the inner support structure 13 is the same as the axial direction of the filter screen 11. The middle through hole 21 of the end plate 2 is located radially inside the inner support structure 13. The inner support structure 13 is set as an annular structure to ensure that the inner support structure 13 fully protects the filter screen 11. In addition, radial through holes are set on the inner support structure 13, and the middle through hole 21 is set on the radial inner side of the inner support structure 13, so that the dye can flow to the filter screen 11 through the middle through hole 21 and the radial through holes on the inner support structure 13 in turn, without affecting the normal flow of the dye.

[0051] Furthermore, the diameter of the radial through hole of the inner support structure 13 is larger than that of the radial through hole of the filter screen 11, so that the dye can smoothly flow to the filter screen 11. Of course, in other embodiments, the diameter of the radial through hole of the inner support structure 13 may also be not larger than that of the radial through hole of the filter screen 11, so as to realize a dual filtering function with the filter screen 11.

[0052] The inner support structure 13 is preferably made of 316 or 316L stainless steel, specifically a stainless steel mesh plate, and the mesh holes are radial through holes. If the hole diameter is too large, the protection of the filter screen 11 is weakened, resulting in the filter screen 11 being easily broken by the liquid flow during reverse pumping. If the hole diameter is too small, the cleaning efficiency of the pan head is affected. Optionally, the mesh size range is: 5-500 mesh, preferably 10 mesh.

[0053] Of course, in other embodiments, the inner support structure 13 may also be configured in other ways. For example, the inner support structure 13 is a support rod with two ends respectively fixed to the two end plates 2, which is easy to install. Preferably, at least two support rods are arranged in sequence along the inner circumference of the filter screen 11 to protect the filter screen 11 from different positions in the circumferential direction. Alternatively, the inner support structure 13 may also include at least two support blocks arranged in sequence along the axial direction, and adjacent support blocks are arranged at intervals, and radial constraints on the filter screen 11 are achieved through the support blocks, wherein there is a gap between the support block and the filter screen 11 in the radial direction to allow the dye to pass through.

[0054] Furthermore, if Figure 4 and Figure 8 As shown, the axial end of the filter screen 11 is provided with a filter screen connection groove 111, which is buckled and fixed to the axial end of the outer support structure 12, and can ensure the connection strength between the filter screen 11 and the outer support structure 12. Of course, in other embodiments, the filter screen 11 can also be screwed, plugged or fixed to the outer support structure 12 in other ways, or there can be a radial gap between the filter screen 11 and the outer support structure 12, and both are directly fixed to the end plate 2.

[0055] Furthermore, annular mounting grooves 22 are respectively provided on the opposite axial end surfaces of the two end plates 2 to correspond to and fix the connecting cylinder 1, which is convenient for assembly. Figure 8As shown, two annular mounting grooves 22 are provided, the filter screen 11 and the outer support structure 12 are fixed to one of the annular mounting grooves 22, and the inner support structure 13 is fixed to the other annular mounting groove 22. In addition, the two end plates 2 can also be axially fixed by a tie rod 3.

[0056] Further, the outer support structure 12 is an annular mesh plate, on which radial through holes are evenly distributed, which can ensure that the dye flows out uniformly from the outer support structure 12 while ensuring the supporting capacity. Wherein, the outer support structure 12 is processed from a stainless steel plate, preferably 316 or 316L stainless steel, with a mesh size range of 5-500 mesh, preferably 30 mesh. In addition, since the outer support structure 12 also supports the cloth belt and ensures the flatness of the cloth belt compared to the inner support structure 13, its mesh size is smaller than that of the inner support structure. Of course, in other embodiments, the outer support structure 12 can also be composed of at least two plates arranged in sequence along the circumferential direction, and the circumferential gap between adjacent plates constitutes a radial through hole.

[0057] The yarn drum in this embodiment is additionally provided with a filter screen 11 and a supporting structure, so that the yarn drum itself has a filtering function, which simplifies the dyeing process, is also convenient for cleaning, and can be repeatedly used to reduce the adsorption of oligomers on the cloth tape, ensure the dyeing effect, and improve the processing quality. At the same time, it can also reduce the production intensity, reduce the wrapping cloth, and reduce the production cost.

[0058] In addition to the above-mentioned yarn tube, the present invention further provides a disc head, which includes a yarn tube, which can be specifically a yarn tube provided in any of the above embodiments, and the beneficial effects can be referred to the above embodiments accordingly. At the same time, the disc head includes a disc head body 4 and a disc head cover 5, an inner cavity is opened at one end of the disc head body 4 in the axial direction, the disc head cover 5 is detachably fixed to the opening of the inner cavity, and the yarn tube is detachably arranged in the inner cavity.

[0059] In addition, the present invention also provides a dyeing method, comprising the following steps:

[0060] Wrapping a cloth tape around the outer side of the body 1 of the yarn drum, the body 1 being the yarn drum provided in the above embodiment;

[0061] The yarn tube is placed in a dyeing vat in a high temperature and high pressure environment for dyeing.

[0062] Among them, in the dyeing vat, dyeing is carried out with disperse dyes, and steps such as color fixing, cleaning, and drying are required to obtain the finished product.

[0063] In specific operations, the finished product obtained by this method is tested to have a color difference ΔE≤0.8 between the outermost layer and the innermost layer of the cloth tape, and each color fastness test is ≥4 levels.

[0064] The steps and related parameters of the method applied in a specific operation are as follows:

[0065] 1. Wrap the 5# metal tape onto the yarn drum. The tape winding process parameters are as follows:

[0066] 2. Place the above-mentioned disc head in a dyeing vat with a high temperature and high pressure environment, dye it with disperse dyes (color number 580), fix the color, wash it, and dry it to obtain the finished product.

[0067] The color difference between the outermost and innermost layers of 580 black is ΔE=0.65, and the color fastness test is ≥4 levels. The details are as follows:

[0068] Sample No. Sampling site Washing color fastness Dry rubbing color fastness 1 Outermost layer ≧ Level 4 ≧ Level 4 2 Innermost layer ≧ Level 4 ≧ Level 4

[0069] It should be noted that when an element is referred to as "fixing" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a centered element at the same time. The orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0070] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0071] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0072] The above is a detailed introduction to the yarn bobbin, the bobbin head and the dyeing method provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A yarn cone, characterized in that: The cylinder (1) comprises an annular filter screen (11) having radial through holes and an annular outer support structure (12) having radial through holes and sleeved on the outside of the filter screen (11); the diameter of the radial through holes of the outer support structure (12) is larger than the diameter of the radial through holes of the filter screen (11); two axial ends of the cylinder (1) are respectively fixed to two end plates (2); the end plates (2) are provided with intermediate through holes (21) in the axial direction; the intermediate through holes (21) are radially located inside the filter screen (11); the filter screen (11) is capable of filtering oligomers when dye flows through; and the outer support structure (12) is an annular mesh plate on which radial through holes are evenly distributed; The cylinder (1) further comprises an inner support structure (13), the filter screen (11) being arranged between the outer support structure (12) and the inner support structure (13), the inner support structure (13) being an annular structure having a radial through hole, the axial direction of the inner support structure (13) being the same as the axial direction of the filter screen (11); the intermediate through hole (21) being located radially inside the inner support structure (13), the aperture of the radial through hole of the inner support structure (13) being larger than the aperture of the radial through hole of the filter screen (11) and larger than the radial through hole of the outer support structure (12); Annular mounting grooves (22) are respectively provided on the opposite axial end surfaces of the two end plates (2) to correspond and fix the cylinder (1).

2. The yarn cone according to claim 1, characterized in that: The inner support structure (13) comprises a support rod with two ends respectively fixed to the two end plates (2).

3. The yarn cone according to claim 1 or 2, characterized in that: The axial end of the filter screen (11) is provided with a filter screen connection groove (111) for buckling and fixing to the axial end of the outer support structure (12).

4. A pan head, comprising a pan head body (4) and a pan head cover (5), wherein an inner cavity is formed at one axial end of the pan head body (4), and the pan head cover (5) is detachably fixed to the opening of the inner cavity, characterized in that: The inner cavity is detachably provided with the yarn tube according to any one of claims 1 to 3.

5. A dyeing method, characterized in that: include: Winding fabric around the outer side of the tube (1) in the yarn tube according to any one of claims 1 to 3; The yarn tube is placed in a dyeing vat in a high temperature and high pressure environment for dyeing.

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